Air conditioning apparatus and electric control box

Patent metadata

Field	Value
Publication number	US-12101908-B2
Application number	US-202117922783-A
Country	US
Kind code	B2
Filing date	Aug 24, 2021
Priority date	Aug 26, 2020
Publication date	Sep 24, 2024
Grant date	Sep 24, 2024

Abstract

The electric control box includes a box body, a mounting board, an electronic component, and a heat sink, the box body being provided with a mounting cavity; the mounting plate is disposed in the mounting cavity and the mounting cavity forms a first cavity and a second cavity located on the two sides of the mounting board; the electronic component is arranged in the second cavity; the heat sink comprises a heat exchange body and a header assembly; the header assembly is used for providing refrigerant flow to the heat exchange body; at least part of the heat exchange body is arranged in the first cavity, and is heat-conductively connected to the electronic component; the mounting board is used for blocking the condensed water on the heat sink from flowing into the second cavity.

First claim

What is claimed is:

1. An electric control box, comprising:
a box body, defining a mounting cavity;
a mounting plate, received in the mounting cavity to divide the mounting cavity into a first chamber and a second chamber, wherein the first chamber and the second chamber are disposed on two sides of the mounting plate respectively;
an electronic element, received in a second cavity; and
a heat dissipation member, comprising a heat exchanging body and a fluid-collecting tube assembly, wherein the fluid-collecting tube assembly is configured to provide a cooling medium to the heat exchanging body, at least part of the heat exchanging body is received in the first cavity and is thermal-conductively connected to the electronic element, the mounting plate is configured to prevent condensed water on the heat dissipation member from flowing into the second cavity.

2. The electric control box according to claim 1 , further comprising a heat dissipation fixing plate, wherein the heat dissipation fixing plate is arranged on the heat exchanging body.

3. The electric control box according to claim 2 , wherein the mounting plate defines an avoidance hole, the heat dissipation fixing plate blocks the avoidance hole, and the electronic element is disposed on a side of the heat dissipation fixing plate away from the heat exchanging body.

4. The electric control box according to claim 1 , further comprising low guiding plate, wherein the flow guiding plate is arranged on a lower side of the heat dissipation member and is configured to collect condensed water dropping from the heat dissipation member.

5. The electric control box according to claim 4 , wherein an end of the flow guiding plate is connected to the box body or the mounting plate, and the other end of the flow guiding plate extends towards an interior of the first cavity; and a projection of the heat dissipation member along a vertical direction falls within the flow guiding plate.

6. The electric control box according to claim 4 , wherein a bottom wall of the box body defines a drainage opening, the flow guiding plate is inclined respect to the bottom wall of the box body, and the condensed water is guided by the flow guiding plate and discharged out of the box body through the drainage opening.

7. The electric control box according to claim 1 , wherein a flowing direction of the cooling medium in the heat exchanging body is configured to be along a horizontal direction.

8. The electric control box according to claim 1 , wherein the heat exchanging body defines a first heat exchanging channel and a second heat exchanging channel;
the fluid-collecting tube assembly comprising a first fluid-collecting tube and a second fluid-collecting tube;
a first fluid-collecting channel is configured to provide a first cooling medium to the first heat exchanging channel and/or to collect the first cooling medium that flows through the first heat exchanging channel;
the second fluid-collecting tube defines a second fluid-collecting channel, the second fluid-collecting channel is configured to provide a second cooling medium to the second heat exchanging channel and/or to collect the second cooling medium that flows through the second heat exchanging channel;
heat is exchanged between the first cooling medium that flows through the first heat exchanging channel and a second cooling medium that flows through the second heat exchanging channel; and
the second cooling medium absorbs heat from the first cooling medium to sub-cool the first cooling medium, while the second cooling medium is flowing along the second heat exchanging channel, or the first cooling medium absorbs heat from the second cooling medium to sub-cool the second cooling medium, while the first cooling medium is flowing along the first heat exchanging channel.

9. The electric control box according to claim 8 , wherein the first heat exchanging channel refers to a plurality of first micro-channels defined in the heat exchanging body, and the second heat exchanging channel refers to a plurality of second micro-channels defined in the heat exchanging body.

10. The electric control box according to claim 9 , wherein the heat exchanging body comprises a first plate body and a second plate body, the first plate body and the second plate body are laminated on each other; and
the plurality of first micro-channels are defined in the first plate body, and the plurality of second micro-channels are defined in the second plate body.

11. The electric control box according to claim 9 , wherein a number of first plate bodies is two, a second plate body is clamped between the two first plate bodies, the electronic element is thermal-conductively connected to the first plate bodies; or
a number of second plate bodies is two, the first plate body is clamped between the two second plate bodies, the electronic element is thermal-conductively connected to the second plate bodies.

12. The electric control box according to claim 1 , wherein the heat exchanger has a cross section along a direction that the cooling medium flows in the heat exchanging body, and the cross section is I shaped, L shaped, U shaped, or G shaped.

13. An air conditioning apparatus, comprising an air conditioning body and an electric control box, wherein the electric control box is detachably connected to the air conditioning body, and
wherein the electric control box comprises:
a box body, defining a mounting cavity;
a mounting plate, received in the mounting cavity to divide the mounting cavity into a first chamber and a second chamber, wherein the first chamber and the second chamber are disposed on two sides of the mounting plate respectively;
an electronic element, received in a second cavity; and
a heat dissipation member, comprising a heat exchanging body and a fluid-collecting tube assembly, wherein the fluid-collecting tube assembly is configured to provide a cooling medium to the heat exchanging body, at least part of the heat exchanging body is received in the first cavity and is thermal-conductively connected to the electronic element, the mounting plate is configured to prevent condensed water on the heat dissipation member from flowing into the second cavity.

Assignees

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

Inventors

• Wang Mingren
• Tan Zhijun
• Ma Xihua

Classifications

• F24F13/30

  Arrangement or mounting of heat-exchangers · CPC title

• F24F13/222

  for evacuating condensate · CPC title

• F24F11/89 Primary

  Arrangement or mounting of control or safety devices · CPC title

• H05K7/20263

  Heat dissipaters releasing heat from coolant · CPC title

• F24F11/88

  Electrical aspects, e.g. circuits · CPC title