CN-114688902-B - Heat exchange device and manufacturing method thereof

CN114688902BCN 114688902 BCN114688902 BCN 114688902BCN-114688902-B

Abstract

The invention discloses a heat exchange device and a manufacturing method thereof, wherein the heat exchange device comprises a heat exchanger and an expansion valve, the expansion valve comprises an outer valve body and an inner valve body, the heat exchanger is fixedly connected with the outer valve body, the outer valve body is detachably connected with the inner valve body, a first heat exchange channel and a second heat exchange channel which are not directly communicated are formed in the heat exchanger, the outer valve body comprises a first interface part and a second interface part, the first interface part and the second interface part are respectively provided with a first interface, the second interface is provided with a first inner interface which corresponds to the first interface position and is communicated in a matched manner, the outer valve body is provided with a containing cavity, the inner valve body is at least partially positioned in the containing cavity, the first interface is communicated with the first heat exchange channel, the second interface is communicated with the first heat exchange channel, the expansion valve further comprises a throttling part, fluid flows into the throttling part from the first inner interface, flows into the heat exchanger after throttling, the throttling part can realize standardization, and the outer valve body can be adjusted according to the system requirement to realize matching, so that production management is facilitated.

Inventors

Request for anonymity
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Assignees

浙江三花汽车零部件有限公司

Dates

Publication Date: 20260505
Application Date: 20210202
Priority Date: 20201231

Claims (14)

1. A heat exchange device is characterized by comprising a heat exchanger and an expansion valve, wherein the expansion valve comprises an outer valve body and an inner valve body, the heat exchanger is fixedly connected with the outer valve body, the inner valve body is detachably connected with the outer valve body, a first heat exchange channel and a second heat exchange channel which are not directly communicated are formed in the heat exchanger, the outer valve body comprises a first interface part and a second interface part, the first interface part is provided with a first interface and a first outer interface, the second interface part is provided with a second interface and a second outer interface, the first outer interface is a first inlet of the heat exchange device, the second interface part is fixedly connected with the heat exchanger, the inner valve body is provided with a first inner interface and a second inner interface, the first inner interface is corresponding to the first interface position and is communicated in a matched manner, the second inner interface position is corresponding to the second interface position and is communicated in a matched manner, at least part of the inner valve body is positioned in a containing cavity, the first interface part is also communicated with the first flow channel and the first flow channel, the second interface part is communicated with the first flow channel, and the second flow channel is further provided with the first flow channel.
2. The heat exchange device of claim 1 wherein the heat exchanger further comprises a heat exchange core and a cover plate, the cover plate being fixedly connected to the heat exchange core, the heat exchange core comprising a plurality of stacked plates, the plates having angular holes, the plates comprising a first plate and a second plate, the second plate being of the same or similar construction as the first plate, the first plate having first angular holes located at opposite corners of the first plate, the second plate having second angular holes located at opposite corners of the second plate, the first plate and the second plate being fixedly connected, the first angular holes and the second angular holes being oppositely disposed, a first heat exchange channel or a second heat exchange channel being formed between adjacent first plates and second plates.
3. The heat exchange device of claim 2, wherein the outer valve body further comprises a third interface portion and a fourth interface portion, the third interface portion has a third outer interface and a third interface, the fourth interface portion has a fourth outer interface and a fourth interface, the inner valve body has a third inner interface and a fourth inner interface, the third inner interface corresponds to the third interface in position and is cooperatively communicated with the third interface, the fourth inner interface corresponds to the fourth interface in position and is cooperatively communicated with the fourth interface, a second flow passage is arranged between the third inner interface and the fourth inner interface, the third interface is fixedly connected with the heat exchange core, the fourth outer interface is a first outlet of the heat exchange device, the third outer interface is communicated with the first heat exchange channel, the fourth outer interface is communicated with the second flow channel, the heat exchanger further comprises a first adapter tube and a second adapter tube, the first adapter tube has a second inlet, the second adapter tube has a second outlet, the first end portion and the second adapter tube is fixedly connected with the first adapter tube and the first heat exchange channel, the second adapter tube and the first heat exchange channel are fixedly connected with the first adapter tube and the second heat exchange channel.
4. The heat exchange device according to claim 1, wherein a first port of the expansion valve is equal to or greater than the first inner port, a second port of the expansion valve is equal to or greater than the second inner port, an outer side portion of the first port facing outward is equal to or greater than an inner side portion of the first port, which is close to the inner valve body, and an outer side portion of the second port facing outward is equal to or greater than an inner side portion of the second port, which is close to the inner valve body, at least two sealing rings are provided between the expansion valve and the outer valve body, corresponding sealing grooves are provided in the inner valve body and/or the outer valve body, and at least one sealing ring is higher than the first inner port and lower than the second inner port in an axial height direction of the expansion valve.
5. The heat exchange device according to claim 2, wherein a first port of the expansion valve is equal to or greater than the first inner port, a second port of the expansion valve is equal to or greater than the second inner port, an outer side portion of the first port facing outward is equal to or greater than an inner side portion of the first port, which is close to the inner valve body, and an outer side portion of the second port facing outward is equal to or greater than an inner side portion of the second port, which is close to the inner valve body, at least two sealing rings are provided between the expansion valve and the outer valve body, corresponding sealing grooves are provided in the inner valve body and/or the outer valve body, and at least one sealing ring is higher than the first inner port and lower than the second inner port in an axial height direction of the expansion valve.
6. A heat exchange device according to claim 3, wherein the first port of the expansion valve is equal to or greater than the first inner port, the second port of the expansion valve is equal to or greater than the second inner port, the outer side of the first port facing outwards is equal to or greater than the inner side of the first port, which is close to the inner valve body, and the outer side of the second port facing outwards is equal to or greater than the inner side of the second port, which is close to the inner valve body, at least two sealing rings are arranged between the expansion valve and the outer valve body, corresponding sealing grooves are arranged on the inner valve body and/or the outer valve body, and at least one sealing ring is higher than the first inner port and lower than the second inner port in the axial height direction of the expansion valve.
7. The heat exchange device of claim 4, wherein the valve body comprises a first valve body portion, a second valve body portion and a third valve body portion, the third valve body portion is lower than the first valve body portion in a height direction, the second valve body portion is lower than the first valve body portion, the maximum position of the third valve body portion is smaller than the maximum position of the second valve body portion, the maximum position of the second valve body portion is smaller than the maximum position of the first valve body portion, the first inner joint is arranged on the third valve body portion, the second inner joint is arranged on the second valve body portion, and the first joint is larger than or equal to the first inner joint and the second joint is larger than or equal to the second inner joint.
8. The heat exchange device of claim 5, wherein the valve body comprises a first valve body portion, a second valve body portion and a third valve body portion, the third valve body portion is lower than the first valve body portion in a height direction, the second valve body portion is lower than the first valve body portion, the maximum position of the third valve body portion is smaller than the maximum position of the second valve body portion, the maximum position of the second valve body portion is smaller than the maximum position of the first valve body portion, the first inner joint is arranged on the third valve body portion, the second inner joint is arranged on the second valve body portion, and the first joint is larger than or equal to the first inner joint and the second joint is larger than or equal to the second inner joint.
9. The heat exchange device of claim 6, wherein the valve body comprises a first valve body portion, a second valve body portion and a third valve body portion, the third valve body portion is lower than the first valve body portion in a height direction, the second valve body portion is lower than the first valve body portion, the maximum position of the third valve body portion is smaller than the maximum position of the second valve body portion, the maximum position of the second valve body portion is smaller than the maximum position of the first valve body portion, the first inner joint is arranged on the third valve body portion, the second inner joint is arranged on the second valve body portion, and the first joint is larger than or equal to the first inner joint and the second joint is larger than or equal to the second inner joint.
10. The heat exchanger of claim 9, wherein the third and fourth inner ports are disposed on a portion of the valve body, the third and fourth inner ports are in communication with each other, the inner valve body is provided with first, second and third seal grooves, the expansion valve includes first, second and third seal rings, the first seal ring is at least partially disposed in the first seal groove, the second seal ring is at least partially disposed in the second seal groove, the third seal ring is at least partially disposed in the third seal groove, the first seal groove is disposed above the third and fourth inner ports, the second seal groove is disposed below the third and fourth inner ports, the second seal groove is disposed above the second inner port, the third seal groove is disposed below the second inner port, and the third seal groove is disposed above the first inner port.
11. The heat exchange device according to any one of claims 1 to 10, wherein the expansion valve is provided with a positioning structure including a convex portion provided to the outer valve body, a concave portion or a notched portion provided to the inner valve body, or a convex portion provided to the outer valve body; or the inner valve body comprises a positioning part, the positioning part comprises a positioning notch, the positioning notch comprises a first contact surface, the first contact surface is a plane, the outer valve body comprises a matched positioning part, the matched positioning part is positioned on the inner wall surface of the outer valve body, the matched positioning part comprises a second contact surface, the second contact surface is a plane, and when the matched positioning part is matched with the positioning notch, the first contact surface is in butt joint with the second contact surface.
12. The heat exchange device of claim 11 wherein the outer valve body further comprises a limit portion comprising a clamping groove, the inner valve body further comprises a power head assembly comprising a gas tank head, the expansion valve comprises a snap ring made of elastic material, the snap ring comprises a main body portion and a clamping portion, the clamping groove can be filled after the snap ring is compressed, the snap ring is filled in the clamping groove, the snap ring is sprung, at least part of the main body portion of the snap ring is positioned in the clamping groove, at least part of the snap ring is positioned above the gas tank head, the snap ring is abutted to limit the gas tank head, the clamping portion is provided with a through hole, and the main material of the snap ring is aluminum.
13. A method of manufacturing a heat exchange device, the method comprising the steps of: Providing a heat exchanger and an outer valve body, wherein the outer valve body comprises a first interface part and a second interface part, the heat exchanger comprises a heat exchange core body, the heat exchange core body is provided with an angular hole, the outer valve body is fixedly connected with the heat exchange core body, the heat exchanger is provided with a first heat exchange channel and a second heat exchange channel, the first interface part is a first inlet, and the second interface part is communicated with the first heat exchange channel or the second heat exchange channel of the heat exchanger; providing an inner valve body and a sealing ring, wherein the inner valve body or the outer valve body is provided with a sealing groove, and the sealing ring is pressed into the sealing groove; The inner valve body is pressed into the outer valve body through external pressure, so that the interface of the inner valve body and the interface of the outer valve body are butted as much as possible, the first interface part is communicated with the first inner interface part, and the second interface part is communicated with the second inner interface part; The outer valve body and the inner valve body comprise a positioning structure and a limiting structure, so that the inner valve body and the outer valve body are detachably connected to form the heat exchange device according to any one of claims 1-12.
14. The method of manufacturing of claim 13, wherein the positioning structure comprises a protrusion provided on the outer valve body, a recess or a notch provided on the expansion valve, or the positioning structure comprises a recess or a notch provided on the outer valve body, a protrusion provided on the expansion valve, the limiting structure comprises a limiting groove of the outer valve body, and a power head assembly and a limiting snap ring of the inner valve body, the positioning structure positions and connects the inner valve body with the outer valve body, and the limiting structure positions and connects the inner valve body with the outer valve body.

Description

Heat exchange device and manufacturing method thereof Technical Field The invention relates to the technical field of heat exchange, in particular to a heat exchange device and a manufacturing method thereof. Background At present, a common expansion valve is combined with a plate heat exchanger, the expansion valve is provided with four interfaces, two interfaces are connected with the plate heat exchanger, and the other two interfaces are connected with a compressor and a liquid reservoir. The four interfaces and the central control part of the expansion valve are formed on the same valve body. This structure has several drawbacks: 1. once the interface of the newly designed expansion valve is replaced, the entire expansion valve must be replaced; 2. when the expansion valve manufacturer assembles, the corresponding equipment is customized according to the appearance and the interface size of different valve bodies, so that the integration manufacturing cost of the expansion valve and the plate heat exchanger is higher. Disclosure of Invention The object of the present invention is to provide a heat exchanger which can be standardized and has low manufacturing cost, and a manufacturing method thereof. The invention provides a heat exchange device, which comprises a heat exchanger and an expansion valve, wherein the expansion valve comprises an outer valve body and an inner valve body, the heat exchanger is fixedly connected with the outer valve body, the inner valve body is detachably connected with the outer valve body, a first heat exchange channel and a second heat exchange channel which are not directly communicated are formed in the heat exchanger, the outer valve body comprises a first interface part and a second interface part, the first interface part is provided with a first interface and a first outer interface, the second interface part is provided with a second interface and a second outer interface, the first outer interface is a first inlet of the heat exchange device, the second interface part is fixedly connected with the heat exchanger, the inner valve body is provided with a first inner interface and a second inner interface, the first inner interface is in corresponding position and matched communication with the first interface, the second inner interface is in corresponding position and matched communication with the second interface, at least part of the inner valve body is positioned in the accommodating cavity, the first interface part is in communication with the first flow channel, the second interface part is also in communication with the first flow channel, and the second flow channel is provided with the second flow channel, and the first flow channel is provided with a small flow channel. In order to achieve the above object, the present invention also provides a method for manufacturing a heat exchange device, the method comprising the steps of: Providing a heat exchanger and an outer valve body, wherein the outer valve body comprises a first interface part and a second interface part, the heat exchanger comprises a heat exchange core body, the heat exchange core body is provided with an angular hole, the outer valve body is fixedly connected with the heat exchange core body, the heat exchanger is provided with a first heat exchange channel and a second heat exchange channel, the first interface part is a first inlet, and the second interface part is communicated with the first heat exchange channel or the second heat exchange channel of the heat exchanger; providing an inner valve body and a sealing ring, wherein the inner valve body or the outer valve body is provided with a sealing groove, and the sealing ring is pressed into the sealing groove; The inner valve body is pressed into the outer valve body through external pressure, so that the interface of the inner valve body and the interface of the outer valve body are butted as much as possible, the first interface part is communicated with the first inner interface part, and the second interface part is communicated with the second inner interface part; the outer valve body and the inner valve body comprise a positioning structure and a limiting structure, so that the inner valve body and the outer valve body are detachably connected to form the heat exchange device. In this kind of heat transfer device and manufacturing method, heat transfer device includes heat exchanger and expansion valve, the expansion valve includes outer valve body and interior valve body, outer valve body and heat exchanger fixed connection, interior valve body and outer valve body can dismantle the connection, outer valve body can be along with the shape and the size adjustment of heat exchanger interface, interior valve body can standardize, the whole expansion valve that need be changed because of expansion valve interface, appearance, interface size change has been reduced, but the interior valve body of expansion valve independent machine