Electric control box, air conditioning outdoor unit, air conditioner and method for assembling electric control box

Patent metadata

Field	Value
Publication number	US-12584639-B2
Application number	US-202318522076-A
Country	US
Kind code	B2
Filing date	Nov 28, 2023
Priority date	Aug 7, 2021
Publication date	Mar 24, 2026
Grant date	Mar 24, 2026

Abstract

An electric control box includes a shell, a mounting plate, and a heat exchanger; the mounting plate and the heat exchanger are connected by screw-thread fitting of a first fastener and corresponding connecting holes, the mounting plate and the heat exchanger are located inside the shell, and the heat exchanger is located between the mounting plate and an inner bottom face of the shell; the mounting plate and the shell are connected by screw-thread fitting of a second fastener and corresponding connecting holes.

First claim

What is claimed is:

1 . An electric control box, comprising:
a shell; a mounting plate; and a heat exchanger; wherein the mounting plate and the heat exchanger are connected by screw-thread fitting of a first fastener and corresponding connecting holes, the mounting plate and the heat exchanger are located inside the shell, and the heat exchanger is located between the mounting plate and an inner bottom face of the shell; and the mounting plate and the shell are connected by screw-thread fitting of a second fastener and corresponding connecting holes.

2 . The electric control box according to claim 1 , wherein the heat exchanger comprises a heat exchange pipe, each end of the heat exchange pipe is provided with a connecting member, and the connecting member is provided with a first connecting hole;
the mounting plate comprises a main body, each end of the main body is provided with at least one second connecting hole opposite to the first connecting hole, each of both ends of the mounting plate and each of both ends of the heat exchanger are in threaded connection by screw-thread fitting of the first fastener and the first connecting hole as well as the second connecting hole.

3 . The electric control box according to claim 2 , wherein the heat exchanger further comprises a heat dissipation plate, the heat dissipation plate is provided on the heat exchange pipe, and the heat dissipation plate is provided with a first assembly hole;
a second assembly hole is provided in the mounting plate at a position corresponding to the first assembly hole, and a middle part of the mounting plate and a middle part of the heat exchanger are in threaded connection by screw-thread fitting of a threaded assembly component and the first assembly hole as well as the second assembly hole.

4 . The electric control box according to claim 3 , wherein the mounting plate and the heat exchanger are provided in a stacked manner, the mounting plate is provided with an avoidance hole and an avoidance protrusion, and the avoidance protrusion protrudes from a plate face of the mounting plate towards a side facing away from the heat exchanger.

5 . The electric control box according to claim 4 , wherein the heat dissipation plate comprises a protruding platform, and the avoidance hole is correspondingly arranged with the protruding platform, and the protruding platform passes through the avoidance hole, the avoidance hole is provided in a middle area of the mounting plate.

6 . The electric control box according to claim 5 , wherein at least two protruding platforms are included, and the at least two protruding platforms are provided in parallel on the heat dissipation plate; at least two avoidance holes are included, and the at least two avoidance holes are provided in parallel in the mounting plate, and the at least two protruding platforms and the at least two avoidance holes are arranged in one-to-one correspondence.

7 . The electric control box according to claim 5 , wherein a first edgefold is provided on at least a part of an edge of the avoidance hole, and the first edgefold extends along an axial direction of the avoidance hole to be supported at a side of the protruding platform.

8 . The electric control box according to claim 7 , wherein the first edgefold is provided on a circumferential edge of the avoidance hole.

9 . The electric control box according to claim 4 , wherein the mounting plate is provided with a reinforcing rib, the reinforcing rib comprises at least one of a convex rib and a concave rib, and the reinforcing rib extends on the mounting plate in a straight-line manner, a curved-line manner, or a meander-line manner.

10 . The electric control box according to claim 9 , wherein the reinforcing rib extends along a circumferential direction of an electronic device disposed on the mounting plate; and/or the reinforcing rib extends along a circumferential direction of the avoidance hole.

11 . The electric control box according to claim 4 , wherein the shell comprises a box body and a box cover, the box body is provided with a holding chamber having a first opening, the box cover is connected to the box body, and the box cover covers the first opening;
the mounting plate is provided opposite to the box cover, the heat exchanger is provided opposite to a bottom of the box body, and the mounting plate is in threaded connection with the bottom of the box body.

12 . The electric control box according to claim 11 , wherein the bottom of the box body is provided with a mounting plate fixing member, and a third connecting hole is provided in the mounting plate, the third connecting hole is correspondingly arranged with the mounting plate fixing member, and the mounting plate and the box body are connected to the third connecting hole and the mounting plate fixing member through the second fastener.

13 . The electric control box according to claim 12 , wherein the mounting plate fixing member comprises a supporting base and a connecting column, the supporting base is connected to a bottom plate of the box body, the connecting column is connected to a top end of the supporting base, the mounting plate is connected to the connecting column, and a projection of the supporting base onto the bottom plate covers a projection of the connecting column onto the bottom plate.

14 . The electric control box according to claim 13 , wherein the supporting base comprises a main body part and two mounting parts connected to both opposite sides of the main body part, the two mounting parts are connected to the bottom plate, a gap is provided between the main body part and the bottom plate, and the connecting column is fixed to the main body part.

15 . The electric control box according to claim 14 , wherein in the two mounting parts and the connecting column included in one supporting base, the two mounting parts are symmetrically provided relative to the connecting column, and bottoms of the two mounting parts are attached to the bottom plate.

16 . The electric control box according to claim 13 , wherein the heat exchanger further comprises an input pipe and an output pipe; two avoidance protrusions are provided, the avoidance protrusions are provided on both opposite sides of the mounting plate, respectively, and the two avoidance protrusions are provided corresponding to the input pipe and the output pipe respectively.

17 . The electric control box according to claim 16 , wherein a ventilation grid is provided between the two avoidance protrusions of the mounting plate, a bending part surrounding the ventilation grid is provided around the ventilation grid, the bending part is bent towards a side away from the heat exchanger, and a plane where the ventilation grid is located protrudes towards a side away from the heat exchanger.

18 . The electric control box according to claim 17 , wherein a second edgefold is provided on an edge of a side of the mounting plate at least close to the ventilation grid, the second edgefold extends towards the heat exchanger, and the second edgefold is provided with an avoidance gap for the input pipe and the output pipe of the heat exchanger to extend out.

19 . The electric control box according to claim 16 , wherein the box body is provided with an avoidance groove located at a position opposite to each of the input pipe and the output pipe and dented towards an outer side of the holding chamber, and the avoidance groove is provided at an edge of each of two opposite sides of the bottom plate.

Assignees

• Gd Midea Heating & Ventilating Equipment Co Ltd
• Hefei Midea Heating & Ventilating Equipment Co Ltd

Inventors

• Wang Guochun
• Xu An
• Song Kaiquan
• Luo Huadong
• Huang Langshui
• Li Hongwei
• Luo Yuzhao

Classifications

• H05K7/20327

  Accessories for moving fluid, for connecting fluid conduits, for distributing fluid or for preventing leakage, e.g. pumps, tanks or manifolds · CPC title

• F24F1/24

  Cooling of electric components · CPC title

• F24F1/22 Primary

  Arrangement or mounting thereof · CPC title

• H05K7/20218 Primary

  using a liquid coolant without phase change in electronic enclosures (in cabinets of standardized dimensions H05K7/20536; in server cabinets H05K7/20709; in vehicle electronic casings H05K7/20845; in power control electronics H05K7/2089; in displays H05K7/20954) · CPC title