CN-224215592-U - Refrigerant heat abstractor and heat pump set

CN224215592UCN 224215592 UCN224215592 UCN 224215592UCN-224215592-U

Abstract

The utility model relates to a refrigerant heat radiation device and a heat pump unit, belonging to the technical field of heat pumps, wherein the refrigerant heat radiation device comprises a heat radiation block; the heat-insulating device comprises a heat-radiating block, at least one first runner, at least one second runner, a connecting piece and a heat-radiating plate, wherein the heat-insulating piece is arranged in the heat-radiating block and divides the heat-radiating block into a first part and a second part, the first runner is arranged in the first part, the second runner is arranged in the second part, the first runner and the second runner are not communicated, the connecting piece is used for communicating a refrigerant pipe with the first runner, and/or the connecting piece is used for communicating the refrigerant pipe with the second runner, the heat-radiating plate is fixedly connected with the heat-radiating block, and the flow path of a refrigerant flowing through during refrigeration circulation is different from the flow path of the refrigerant flowing through during heating circulation. In order to realize that the refrigerant passes through different runners under refrigeration mode and heating mode, solve temperature rise and condensation problem simultaneously.

Inventors

LI ZHAOHUI
HE CHANGQING
GAO YONGKUN
ZHANG RUNING
SHI XINQING
WANG TAO
LI XIAOYU
XIN DIANBO
MENG JIANJUN

Assignees

青岛海信日立空调系统有限公司

Dates

Publication Date: 20260508
Application Date: 20250422

Claims (10)

1. The utility model provides a refrigerant heat abstractor for heat pump set's automatically controlled power device heat dissipation, its characterized in that includes: A heat dissipation block; a heat insulating member provided in the heat dissipating block, the heat insulating member dividing the heat dissipating block into a first portion and a second portion; at least one first flow passage provided in the first portion; at least one second flow passage provided in the second portion, the first flow passage and the second flow passage not communicating; A connection for communicating a refrigerant tube with the first flow passage and/or for communicating a refrigerant tube with the second flow passage; The radiating plate is fixedly connected with the radiating block; The flow passage through which the refrigerant flows in the refrigeration cycle is different from the flow passage through which the refrigerant flows in the heating cycle.
2. The refrigerant heat dissipating device of claim 1, wherein the second flow path comprises a plurality of interconnecting connecting channels.
3. The refrigerant heat dissipating device according to claim 2, wherein the connecting channel is located entirely inside the second portion and communicates with a plurality of the connecting channels.
4. The refrigerant heat dissipating device according to claim 2, wherein the connection passage comprises: the first connecting section penetrates through two opposite side walls of the radiating block; The second connecting section penetrates through two opposite side walls of the radiating block; the third connecting section penetrates through two opposite side walls of the radiating block; The second flow passage further comprises a first connecting pipe for communicating the first connecting section, the second connecting section and the third connecting section to form a passage, and the first connecting pipe is located outside the second portion.
5. The refrigerant heat dissipating device according to claim 2, wherein at least two of the connecting members are check valves, one of which is in communication with the output end of the first flow passage and the input end of the second flow passage; the other one of the check valves is communicated with the output end of the second flow passage and the input end of the first flow passage.
6. The refrigerant heat dissipating device of claim 5, wherein the check valve comprises: The first shunt tube is communicated with the refrigerant tube input end and the first flow channel input end; The second shunt pipe is communicated with the first flow channel output end and the refrigerant pipe output end; The valve core is positioned at the joint of the first shunt pipe and the input end of the refrigerant pipe or the joint of the second shunt pipe and the output end of the refrigerant pipe, and the valve core is used for switching the first shunt pipe and the second shunt pipe so as to control the refrigerant circulation path.
7. The refrigerant heat dissipating device according to any one of claims 1 to 4, wherein at least two of the connecting members are respectively located at two ends of the heat dissipating block; The connecting piece is a split cover, the opening end of the split cover is connected with the radiating block, a closed cavity is formed between the split cover and the radiating block, and a connecting port is formed in the split cover and communicated with the refrigerant pipe.
8. The refrigerant heat dissipating apparatus according to claim 7, wherein the connection ports on the two split covers correspond to the first flow passage and the second flow passage, respectively.
9. A heat pump assembly, comprising: a first heat exchanger; the first heat exchanger is connected with the second heat exchanger through a refrigerant pipe; the refrigerant heat dissipating device as defined in any one of claims 1-8; and the surface of the radiating plate far away from the radiating block is contacted with the electric control power device.
10. The heat pump assembly as set forth in claim 9, wherein the heat shield comprises: a first heat insulation tank; a second heat insulation tank; a third heat insulation tank; The first heat insulation groove, the second heat insulation groove and the third heat insulation groove are enclosed together to form a heat insulation area, and the first flow passage is positioned in the heat insulation area.

Description

Refrigerant heat abstractor and heat pump set Technical Field The application relates to the technical field of heat pumps, in particular to a refrigerant heat dissipation device and a heat pump unit. Background In the outdoor unit products of air conditioners, air cooling heat dissipation is limited by heat dissipation capacity and air duct design, and the heat dissipation of the refrigerant is generally carried out by utilizing the refrigerant circulation of the air conditioning system. In the prior art, when the temperature of the high ambient temperature and the water temperature are low, the temperature of the refrigerant in the refrigerant radiator is often lower than the air dew point temperature of the electric control driving environment, so that the temperature of a heat dissipation aluminum plate in the refrigerant radiator is lower than the dew point temperature, and the condensation failure of an electric control power device on the surface of the heat dissipation aluminum plate is caused. Because the condensation phenomenon has a great influence on normal operation of the electric control power device and the like, the heat resistance of the power device can be increased by improving the temperature of the heat dissipation aluminum plate in general at present, and the current amount is large when high-frequency refrigeration stably operates, so that the temperature rise of the power device is too high, and the service life and the working safety of the electric control power device are also influenced. Therefore, in the prior art, the refrigerant radiator cannot well meet the use requirement of the heat pump unit. Disclosure of utility model The present utility model solves at least one of the technical problems in the related art to a certain extent. Therefore, the application aims to provide a refrigerant heat dissipation device, which is characterized in that a first flow passage and a second flow passage are arranged in a heat dissipation block, and a heat insulation piece is arranged between the first flow passage and the second flow passage, so that a refrigerant passes through different flow passages in a refrigerating mode and a heating mode, and meanwhile, the problems of temperature rise and condensation are solved. In order to achieve the above object, the present utility model provides a refrigerant heat dissipation device for dissipating heat from an electric control power device of a heat pump unit, comprising: A heat dissipation block; a heat insulating member provided in the heat dissipating block, the heat insulating member dividing the heat dissipating block into a first portion and a second portion; at least one first flow passage provided in the first portion; at least one second flow passage provided in the second portion, the first flow passage and the second flow passage not communicating; A connection for communicating a refrigerant tube with the first flow passage and/or for communicating a refrigerant tube with the second flow passage; The radiating plate is fixedly connected with the radiating block; The flow passage through which the refrigerant flows in the refrigeration cycle is different from the flow passage through which the refrigerant flows in the heating cycle. In the technical scheme, through set up first runner and second runner in refrigerant heat abstractor for under different mode, the refrigerant passes through from first runner and second runner respectively, through setting up the heat insulating part, make under the heating mode, when refrigerant passes through from first runner, refrigerant temperature is difficult to influence the radiating block temperature, thereby reduce the influence to the radiating plate temperature, make the radiating plate temperature can be higher than air dew point temperature under high ambient temperature circumstances, reduce the probability that the temperature rise problem appears when avoiding the condensation phenomenon, in order to realize the protection to automatically controlled power device. In some embodiments of the application, the second flow path includes a plurality of interconnecting connecting channels. In the technical scheme, through prolonging the second flow channel, the flow path of the refrigerant in the radiating block is prolonged in the refrigeration mode, so that the heat exchange time is prolonged, the effective radiating area is increased, the radiating effect of the radiating plate is improved, and the temperature rise problem is solved. In some embodiments of the application, the connecting channel is located entirely inside the second portion and is in communication with a plurality of connecting channels. In the technical scheme, the connecting channel is completely positioned in the second part, so that the external structure of the radiating block is simplified, and the production cost is reduced. In some embodiments of the present application, the connection channel includes: the fi