Electric control box and air conditioner

Abstract

This invention provides an electrical control box and an air conditioner. The electrical control box includes a first box and a second box, both with openings. The openings of the first and second boxes are positioned opposite each other. The box contains a space for accommodating electrical control components, which are disposed on the inner surfaces of the first and second boxes. A cooling module is disposed on the outer surfaces of the first and second boxes, respectively, and is tightly fitted to the surfaces of the first and second boxes where the electrical control components are disposed. The electrical control box of this invention features a large contact area between the heating elements and the cooling module inside, resulting in good overall heat dissipation. Furthermore, the electrical control box has a simple structure, is easy to manufacture, has a compact internal structure, and makes full use of space.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and in particular to an electric control box and an air conditioner with heat dissipation function. Background Art

[0002] At present, air conditioners and other products containing electric control boxes usually rely on refrigerant cooling to dissipate heat. When using refrigerant cooling, the electric control box is equipped with an aluminum heat dissipation module, which contains a low-temperature refrigerant pipe. The low temperature of the refrigerant pipe exchanges heat with the heating part of the electric control box to achieve the purpose of cooling. Figure 1 As shown, however, the current refrigerant cooling electric control box has the following disadvantages:

[0003] The existing electric control box usually adopts a double-layer structure for component layout, which leads to a complex internal structure, inconvenient production and installation, and the upper sheet metal for laying components is small, and the double-layer structure cannot be fully utilized, making the electric control box larger in size;

[0004] There are many heating components in the electric control box, but few of them can be in contact with the refrigerant for cooling, so the overall heat dissipation effect is poor, and generally air cooling is required for auxiliary cooling in some areas;

[0005] Due to the double-layer structure, it is inconvenient to install and disassemble the lower-layer components. When repairing and replacing the lower-layer electronic control components, the upper-layer sheet metal parts must be disassembled first, and the upper-layer installation must be reset after repair, which is labor-intensive and time-consuming.

[0006] The cover plate and the box body of the electric control box adopt a split structure, and the two are connected by screws, which makes installation and disassembly inconvenient. After the cover plate is removed, it needs to be placed separately, which is easy to cause deformation due to stress. Summary of the invention

[0007] In view of this, the present invention aims to provide an electric control box to obtain a better heat dissipation effect and reduce the volume of the electric control box.

[0008] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0009] An electric control box, the electric control box body comprising:

[0010] A first box and a second box, wherein the first box and the second box are boxes with openings, the openings of the first box and the second box are arranged opposite to each other, and the boxes have accommodating spaces for arranging electric control components, and the electric control components are arranged on the inner surfaces of the first box and the second box;

[0011] The cooling modules are respectively arranged on the outer sides of the first box body and the second box body, and are closely fitted to the surfaces of the first box body and the second box body where the electric control components are arranged.

[0012] Furthermore, the fitting position of the cooling module on the outer sides of the first box and the second box corresponds to the fixed position of the electric control element in the first box and the second box, and the fitting position of the cooling module on the first box and the second box has at least one through hole.

[0013] Furthermore, the electric control box also includes:

[0014] A heat exchanger is connected to the cooling module by a pipeline and contains a heat exchange medium. The low-temperature refrigerant pipeline is in contact with the heat exchanger, and the cooling module exchanges heat with the low-temperature refrigerant pipeline through the heat exchanger.

[0015] Furthermore, the heat exchanger is arranged above the cooling module, the heat exchange medium is heated at the cooling module, and rises under the action of gravity circulation, enters the heat exchanger, and the heat exchanger contacts and exchanges heat with the low-temperature refrigerant pipeline. The heat exchange medium releases heat and cools at the heat exchanger and then returns to the cooling module to complete the circulation process.

[0016] Furthermore, the two cooling modules on the outsides of the first box body and the second box body of the electric control box are connected by a flexible pipeline.

[0017] Furthermore, the cooling module uses two metal plates to clamp a heat-conducting pipe in the middle, the pipe is filled with heat exchange medium, the metal plates are tightly fitted with the first box body and the second box body, and the pipe is connected to the flexible pipeline.

[0018] Furthermore, the first box and the second box are metal boxes.

[0019] Furthermore, one side of the first box body and the second box body is hingedly connected, and the other side opposite thereto is detachably connected.

[0020] Compared with the prior art, the electric control box of the present invention has the following advantages:

[0021] (1) The contact area between the heating element and the cooling module inside the electric control box with heat dissipation function described in the present invention is large, and the overall heat dissipation effect is good. In addition, the electric control box has a simple structure, is relatively convenient to produce, has a compact internal structure, and fully utilizes space.

[0022] (2) Since the cooling module exchanges heat with the low-temperature refrigerant pipeline through the heat exchanger, when the electric control box needs to be replaced as a whole, the medium flow path can be disconnected without affecting the refrigerant pipeline of the whole machine, and there is no need to release / recharge the refrigerant. Since the heat exchange medium flow path is easy to restore and the price of the heat exchange medium is relatively low, the cost of maintenance and updating of the electric control box is effectively reduced.

[0023] (3) Since the refrigerant modules on the outside of the first box body and the second box body are connected by flexible pipes, the maintenance and replacement of the components inside the electric control box are more convenient. At the same time, the first box body and the second box body are connected together, which is convenient for production and assembly.

[0024] Another object of the present invention is to provide an air conditioner to achieve a better heat dissipation effect of the electric control box in the air conditioner system.

[0025] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0026] An air conditioner comprises the electric control box as described above.

[0027] Furthermore, the electric control box is arranged in the outdoor unit of the air conditioner, wherein the low-temperature refrigerant pipeline is provided by the internal refrigerant pipeline of the outdoor unit of the air conditioner.

[0028] Compared with the prior art, the air conditioner of the present invention has the following advantages:

[0029] (1) The electric control box of the air conditioner described in the present invention has good heat dissipation effect, simple structure, and is convenient for disassembly, maintenance and replacement.

[0030] (2) The air conditioner described in the present invention provides a cold source for heat exchange with the electric control box through the refrigerant pipeline inside the air conditioner outdoor unit. When the electric control box is replaced, the refrigerant pipeline of the air conditioner itself will not be affected, which effectively saves refrigeration refrigerant and facilitates maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0032] Figure 1 This is a front view of an electric control box with heat dissipation function according to an embodiment of the present invention;

[0033] Figure 2 It is a side view of the electric control box with heat dissipation function according to an embodiment of the present invention;

[0034] Figure 3 This is an internal structural diagram of an electric control box with heat dissipation function according to an embodiment of the present invention;

[0035] Figure 4 This is a medium flow diagram of an electric control box with heat dissipation function according to an embodiment of the present invention.

[0036] Description of reference numerals:

[0037] 1-first box, 2-second box, 3-hinge, 4-cooling module, 5-flexible pipeline, 6-low-temperature refrigerant pipeline, 7-heat exchanger, 8-electrical control element. DETAILED DESCRIPTION

[0038] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0039] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0040] In one embodiment of the present invention, an electric control box with heat dissipation function is provided. Figure 1-4 As shown, the electric control box structure includes the following main parts: the first box 1 of the electric control box, the second box 2, the cooling module 4, the heat exchanger 7, etc. The electric control box consists of two parts, the first box 1 and the second box 2. The first box 1 and the second box 2 are boxes with openings, and there is a storage space for arranging the electric control element 8 in the box. The openings of the first box 1 and the second box 2 are arranged oppositely, one side is hinged, and the opposite side is detachably connected. Specifically, one side of the first box 1 and the second box 2 is connected by two hinges 3, and the other side is connected by screws. Among them, the second box 2 is fixed to the whole machine, and the first box 1 can be opened and closed by the hinge. The electric control element 8 is distributed inside the storage space of the first box 1 and the second box 2. In this embodiment, the first box 1 and the second box 2 are square box structures, and the electric control element 8 can be distributed on the bottom surface of the square box. Compared with the layout of the upper sheet metal in the existing double-layer structure, the box space of this embodiment is more fully utilized. The structure eliminates the layered sheet metal parts and cover plates of the existing electric control box, making the internal structure of the box more compact and reducing the volume of the electric control box.

[0041] The outer sides of the first box body 1 and the second box body 2 of the electric control box are respectively provided with cooling modules 4, and the two cooling modules 4 are connected by a flexible pipe 5, and the cooling module 4 exchanges heat with the low-temperature refrigerant pipe 6 through the heat exchanger 7. Specifically, the heat exchanger 7 is connected to the cooling module 4 by a pipeline, and a heat exchange medium is built in. The low-temperature refrigerant pipe 6 contacts the heat exchanger 7 and acts as a cold source to cool the heat exchange medium in the heat exchanger 7. The heat exchange medium then exchanges heat and cools at the cooling module 4, and finally achieves the purpose of cooling the heating element. After the heat exchange and cooling are completed, the heat exchange medium returns to the heat exchanger through the pipe between the cooling module 4 and the heat exchanger 7, completing the circulation of the heat exchange medium. In this embodiment, the electric control box body is a square structure. In other embodiments, the body can also be a polygonal column or cylindrical structure, and the shape and layout of the corresponding cooling module 4 vary with the shape of the electric control box body.

[0042] The first box body 1 and the second box body 2 of the electric control box are made of heat-conducting materials, and the heat-generating electric control element 8 is arranged on one side of the accommodation space of the first box body 1 and the second box body 2 of the electric control box. The cooling module 4 is tightly fitted with the outer sides of the first box body 1 and the second box body 2 of the electric control box. Preferably, the first box body 1 and the second box body 2 of the electric control box are sheet metal boxes, and the electric control elements 8 are arranged on the inner sides thereof, and the back of the heat-generating electric control element 8 is correspondingly fitted with the cooling module for heat exchange. Preferably, the sheet metal box at the joint of the back of the electric control element 8 and the cooling module has a through hole, and the back of the heat-generating electric control element 8 is correspondingly fitted with the cooling module. By adopting the above method, there are more heat-generating elements in contact with the cooling module 4 and the contact is more sufficient, thereby achieving a better overall heat dissipation effect.

[0043] In this embodiment, the cooling module 4 uses two metal plates to clamp a heat-conducting pipe in the middle, and the pipe is filled with a heat exchange medium. The metal plate is tightly fitted with the first box body 1 and the second box body 2 of the electric control box to facilitate heat conduction. During operation, the heat-generating electric control element 8 transfers heat to the cooling module 4 through the through hole, and the heat exchange medium is heated at the cooling module 4, and rises under the action of gravity circulation and enters the heat exchanger 7. The heat exchanger 7 contacts and exchanges heat with the low-temperature refrigerant pipeline 6. The heat exchange medium releases heat and cools at the heat exchanger 7 and then returns to the cooling module 4 to complete the circulation process. The low-temperature refrigerant pipeline 6 can be provided by the refrigerant pipeline inside the air-conditioning system.

[0044] like Figure 4 As shown, the two cooling modules 4 outside the first box body 1 and the second box body 2 of the electric control box are connected by a flexible pipe, and the heat-conducting pipe clamped between the metal plates of the cooling module 4 includes an inlet pipe and an outlet pipe. The heat exchange medium passes through the second box body 2 and the first box body 1 of the electric control box in sequence through the inlet pipe, and then passes through the first box body 1 and the second box body 2 of the electric control box in sequence through the outlet pipe. The heat exchanger 7 is arranged above the cooling module, so that the heat exchange medium can rise under the action of gravity circulation after being heated and flow back to the heat exchanger 7. Specifically, the heat exchange medium can be any gas or liquid that can complete heat exchange through gravity circulation.

[0045] The existing electric control box cooling module directly uses low-temperature refrigerant pipelines for heat exchange. When the electric control box needs to be replaced, the refrigerant in the refrigerant pipeline needs to be released, and the refrigerant pipeline needs to be disconnected to replace the electric control box, and the refrigerant needs to be refilled after the replacement is completed. The refrigerant is usually a refrigeration material such as Freon. Each replacement will cause the consumption of refrigerant materials, which is too costly. In this embodiment, when the electric control box needs to be replaced as a whole, the medium flow path can be disconnected, which will not affect the refrigerant pipeline of the whole machine, and there is no need to release / refill the refrigerant. Since the heat exchange medium flow path is easy to restore and the price of the heat exchange medium is relatively low, the cost of maintenance and updating of the electric control box is effectively reduced.

[0046] Figure 1 , Figure 2The electric control box is closed. When you need to open the electric control box, remove the screws connecting the edges of the first box 1 and the second box 2 of the electric control box, and rotate the first box 1 to open it. Since the refrigerant module 4 outside the first box 1 and the second box 2 is connected by a flexible pipe 5, the flexible pipe 5 can be deformed, but it will not affect the heat exchange medium flow path inside the pipe. Figure 3 After the operation is completed, the first box body 1 and the second box body 2 of the electric control box are reset and reconnected with screws. The above-mentioned structure makes it more convenient to repair and replace the internal components of the electric control box.

[0047] In another embodiment of the present disclosure, an air conditioner including the above-mentioned electric control box with heat dissipation function is also provided. Preferably, the electric control box with heat dissipation function can be arranged in the outdoor unit of the air conditioner, wherein the low-temperature refrigerant pipeline used can be provided by the refrigerant pipeline inside the air conditioner outdoor unit.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An air conditioner, characterized in that: The electric control box comprises: A first box (1) and a second box (2), wherein the first box (1) and the second box (2) are boxes with openings, the openings of the first box (1) and the second box (2) are arranged opposite to each other, and the boxes have a storage space for arranging an electric control element (8), and the electric control element (8) is arranged on the inner surface of the first box (1) and the second box (2); The cooling modules (4) are respectively arranged on the outside of the first box body (1) and the second box body (2), and are closely attached to the surfaces of the first box body (1) and the second box body (2) on which the electric control components (8) are arranged; The cooling module (4) uses two metal plates to sandwich a heat-conducting pipe, the pipe is filled with a heat exchange medium, and the metal plates are tightly fitted to the first box body (1) and the second box body (2); A heat exchanger (7), wherein the heat exchanger (7) and the cooling module (4) are connected by the heat conduction pipe and contain a heat exchange medium, the low-temperature refrigerant pipeline (6) is in contact with the heat exchanger (7), and the cooling module (4) exchanges heat with the low-temperature refrigerant pipeline (6) through the heat exchanger (7); The electric control box is arranged on an outdoor unit of the air conditioner, wherein the low-temperature refrigerant pipeline (6) is provided by a refrigerant pipeline inside the outdoor unit of the air conditioner.

2. The air conditioner according to claim 1, characterized in that: The fitting position of the cooling module (4) on the outer sides of the first box (1) and the second box (2) corresponds to the fixed position of the electric control element (8) in the first box (1) and the second box (2), and the fitting position of the cooling module (4) on the first box (1) and the second box (2) has at least one through hole.

3. The air conditioner according to claim 1, characterized in that: The heat exchanger (7) is arranged above the cooling module (4); the heat exchange medium is heated at the cooling module (4) and rises under the action of gravity circulation to enter the heat exchanger (7); the heat exchanger (7) contacts and exchanges heat with the low-temperature refrigerant pipeline (6); the heat exchange medium releases heat and cools at the heat exchanger (7) before returning to the cooling module (4).

4. The air conditioner according to claim 1, characterized in that: The two cooling modules (4) outside the first box body (1) and the second box body (2) are connected by a flexible pipeline (5).

5. The air conditioner according to claim 4, characterized in that: The pipeline is in communication with the flexible pipe (5).

6. The air conditioner according to claim 1, characterized in that: The first box body (1) and the second box body (2) of the electric control box are metal boxes.

7. The air conditioner according to claim 1, characterized in that: One side of the first box body (1) and the second box body (2) are hingedly connected, and the other side opposite to them is detachably connected.

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