CN-224205305-U - Drive plate assembly, electric control box and heating ventilation equipment

Abstract

The application provides a driving plate assembly, an electric control box and heating ventilation equipment. The protection box is arranged on the driving substrate, the protection box is internally provided with a containing cavity and is provided with an opening communicated with the containing cavity, the power module is arranged in the containing cavity and is electrically connected with the driving substrate to supply power to the driving substrate, and the containing cavity is filled with heat-conducting glue and wraps at least part of the power module. Through the arrangement, the power module is arranged on the driving substrate as an independent component, and only a small part of heat generated by the power module is transferred to the driving substrate, so that the heat dissipation performance of the driving substrate is ensured. And through setting up protection box and heat conduction glue, carry out the encapsulating to power module and handle, promote power module's sealing performance, can also utilize the heat conduction glue to carry out heat conduction, improve power module's radiating effect to promote power module's reliability and security.

Inventors

• XIAO ZHENHONG
• WANG GUOCHUN
• ZHANG TAO

Assignees

• 广东美的暖通设备有限公司
• 合肥美的暖通设备有限公司

Dates

Publication Date

20260505

Application Date

20250430

Claims (20)

1. 1. A drive plate assembly, comprising: A driving substrate; The protection box is arranged on the driving substrate, is internally provided with a containing cavity and is provided with an opening communicated with the containing cavity; The power module is arranged in the accommodating cavity and is electrically connected with the driving substrate to supply power to the driving substrate, and And the heat-conducting glue is filled in the accommodating cavity and wraps at least part of the power supply module.
2. 2. The drive plate assembly of claim 1, wherein the protective case is further provided with a mounting groove in a wall of the receiving cavity, and the power module is limited to the mounting groove.
3. 3. The drive plate assembly of claim 2, wherein the mounting slot extends from the opening in a depth direction of the receiving cavity, and wherein an edge of the power module is insertable into the mounting slot from the opening.
4. 4. A drive plate assembly according to claim 3, wherein the shield box comprises: a box body formed with the accommodating cavity and the opening, and Two clamping convex parts which are arranged in an extending way along the depth direction of the accommodating cavity and are connected with the inner wall of the box body; the two clamping convex parts are arranged at intervals relatively and are matched with the inner wall of the box body to define the mounting groove.
5. 5. The drive plate assembly of claim 4, wherein the clamping boss comprises: a clamping section, two clamping sections of the clamping convex parts are oppositely arranged for clamping the power supply module, and The guide sections are connected to one side, close to the opening, of the clamping sections, and the distance between the guide sections of the two clamping convex parts gradually contracts from the opening along the depth direction of the accommodating cavity.
6. 6. The drive plate assembly of claim 4, wherein the number of mounting slots is two, the two mounting slots are respectively provided on opposite sides of the case body, and edges of the opposite sides of the power module are respectively inserted into corresponding one of the mounting slots.
7. 7. The drive plate assembly of claim 4, wherein the shield box further comprises: The stop piece is connected to the inner wall of the box body and positioned in the groove of the mounting groove close to one end of the opening, and the stop piece is abutted to the end face of the power module, which faces the opening.
8. 8. The drive plate assembly of claim 7, wherein the stop member further has a guide ramp formed thereon for sliding contact with an edge of the power module during insertion of the power module into the receiving cavity.
9. 9. The drive plate assembly of claim 4, wherein the cartridge body has a through-hole formed in a side wall facing away from the opening, the power module portion is disposed through the through-hole and exposes the cartridge body, and the portion of the power module exposed from the through-hole is electrically connected to the drive substrate.
10. 10. The drive plate assembly of claim 9, wherein the drive substrate has a mounting hole formed therein, and the portion of the power module exposed from the via hole is disposed through the mounting hole.
11. 11. The drive plate assembly of claim 4, wherein the cartridge body is provided with a recess.
12. 12. The drive plate assembly of claim 4, wherein the shield box further comprises: and the connecting lug is connected to the outer wall of the box body and used for fixing the protection box.
13. 13. The drive plate assembly of any one of claims 1-12, wherein the thermally conductive adhesive completely encapsulates the power module and the thermally conductive adhesive is flush with the opening.
14. 14. An electronic control box, characterized in that it comprises: The main box body is internally provided with a first cavity; The drive plate assembly of any one of claims 1-13, disposed within the first cavity.
15. 15. The electronic control box of claim 14, wherein, A second cavity is arranged in the main box body, and the first cavity and the second cavity are oppositely arranged at intervals in the thickness direction of the main box body; The electric control box comprises a filter plate assembly, wherein the filter plate assembly is arranged in the second cavity and is electrically connected with the driving plate assembly.
16. 16. The electronic control box of claim 15, wherein the main box body comprises a heat dissipation structure, a first box cover and a second box cover, the first box cover and the heat dissipation structure cooperate to form the first cavity, and the second box cover and the heat dissipation structure cooperate to form the second cavity; The heat dissipation structure has a first side and a second side, and the first cavity and the second cavity are respectively located at the first side and the second side of the heat dissipation structure.
17. 17. The electronic control box according to claim 16, wherein the heat dissipation structure comprises a cold plate main body and a first coaming connected to the cold plate main body, the cold plate main body and the first coaming are in an integral structure, and the cold plate main body is plate-shaped and is provided with a heat dissipation runner; The first box cover is in sealing fit with one side, away from the cold plate main body, of the first coaming to form the first cavity.
18. 18. The electronic control box of claim 17, wherein the heat dissipation structure further comprises a second enclosure plate connected to a side of the cold plate body facing away from the first enclosure plate, and the second box cover is in sealing engagement with a side of the second enclosure plate facing away from the cold plate body to form the second cavity; Or the second box cover is sealed on one side of the cold plate main body, which is opposite to the first coaming, so as to form the second cavity.
19. 19. A heating and ventilation device comprising a housing and an electrical control box according to any one of claims 14 to 18, the electrical control box being disposed within the housing.
20. 20. The heating and ventilation device according to claim 19, wherein the housing is provided with an access opening, and the electronic control box is located at the access opening, wherein the first cavity is provided facing the access opening.

Description

Drive plate assembly, electric control box and heating ventilation equipment Technical Field The application relates to the technical field of heating and ventilation equipment, in particular to a driving plate assembly, an electric control box and heating and ventilation equipment. Background Heating and ventilation equipment is an important component of building environment control, covers a plurality of systems such as heating, ventilation, air conditioning and the like, and is widely applied to houses, commercial buildings, industrial sites and the like. The main function of the indoor air conditioner is to create comfortable and healthy living and working environments for people by adjusting parameters such as indoor temperature, humidity, air flow and the like. The electric control board is used as a key component of heating and ventilation equipment and is used for controlling the normal operation of each electric appliance. In order to protect the electronic control board, the electronic control board is usually contained in a box, which is called an electronic control box. The electric control board comprises a driving board component which is used for realizing main functions of the electric control box, such as control, driving and the like. The driving base plate in the driving plate assembly is used as a main body part of the driving plate assembly and is a key component for realizing the functions of control, driving and the like. When the drive board assembly performs these functions, power needs to be supplied to the drive substrate by means of a power module. In the related art, a power module is generally integrally provided on a driving substrate. During the process of supplying power to the driving substrate by the power module, the electronic components thereon generate heat, which causes the temperature of the power module to rise. This also causes a local temperature rise of the drive substrate due to the close integration arrangement with the drive substrate. This phenomenon not only affects the heat dissipation performance of the drive plate assembly, but may also reduce the overall service life of the drive plate assembly. Because power module only relies on air heat conduction to dispel the heat, the radiating effect often is unsatisfactory, and this has not only influenced power module's radiating effect, still probably reduces the whole life-span of drive plate subassembly. Disclosure of utility model The embodiment of the application provides a driving plate assembly, an electric control box and heating and ventilation equipment, and aims to solve the problem that the overall heat dissipation effect of the electric control box is affected due to poor heat dissipation of a power supply module. In a first aspect, embodiments of the present application provide a drive plate assembly comprising: A driving substrate; The protection box is arranged on the driving substrate, is internally provided with a containing cavity and is provided with an opening communicated with the containing cavity; The power module is arranged in the accommodating cavity and is electrically connected with the driving substrate to supply power to the driving substrate, and And the heat-conducting glue is filled in the accommodating cavity and wraps at least part of the power supply module. In some embodiments, the protection box is further provided with a mounting groove on the cavity wall of the accommodating cavity, and the power module is limited in the mounting groove. In some embodiments, the mounting groove extends from the opening in the depth direction of the accommodating cavity, and the edge of the power module can be inserted into the mounting groove from the opening. In some of these embodiments, the protective case comprises: a box body formed with the accommodating cavity and the opening, and Two clamping convex parts which are arranged in an extending way along the depth direction of the accommodating cavity and are connected with the inner wall of the box body; the two clamping convex parts are arranged at intervals relatively and are matched with the inner wall of the box body to define the mounting groove. In some of these embodiments, the clamping projection comprises: a clamping section, two clamping sections of the clamping convex parts are oppositely arranged for clamping the power supply module, and The guide sections are connected to one side, close to the opening, of the clamping sections, and the distance between the guide sections of the two clamping convex parts gradually contracts from the opening along the depth direction of the accommodating cavity. In some embodiments, the number of the mounting grooves is two, the two mounting grooves are respectively arranged on two opposite sides of the box body, and edges of two opposite sides of the power module are respectively inserted into one corresponding mounting groove. In some of these embodiments, the protective case further com