CN219205064U

CN219205064U - Electrical apparatus box and air conditioning unit

Info

Publication number: CN219205064U
Application number: CN202223268563.8U
Authority: CN
Inventors: 李子峰; 袁国炉; 张红梅; 吴梅彬; 周琪
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2022-12-05
Filing date: 2022-12-05
Publication date: 2023-06-16
Anticipated expiration: 2032-12-05

Abstract

The application provides an electrical apparatus box and air conditioning unit, include: the box body comprises a plurality of wall surfaces; the circuit board assembly is arranged in the box body; and the refrigerant channel is arranged around the plurality of wall surfaces, and the circuit board assembly is positioned on the surrounding path of the refrigerant channel. This application takes away the heat of the inside circuit board subassembly of electrical apparatus box with system low temperature refrigerant through the refrigerant passageway through the wall to surrounding type refrigerant passageway can be in the avoiding formation low temperature plane area of electrical apparatus box, improves electrical apparatus box and outside heat exchange volume, reduces electrical apparatus box ring temperature, thereby improves the temperature rise condition of circuit board subassembly under extreme operating mode, in addition, under the prerequisite of not seting up the louvre, encircle the refrigerant passageway and arrange on a plurality of walls of box body, utilize the refrigerant pipeline to dispel the heat to all circuit board subassemblies in the electrical apparatus box, guarantee that the electrical apparatus box can not intaking under the weather condition of wind and rain of unit, and accomplish circuit board subassembly heat dissipation cooling effectively.

Description

Electrical apparatus box and air conditioning unit

Technical Field

The application relates to the technical field of heat dissipation of electrical boxes, in particular to an electrical box and an air conditioning unit.

Background

An air conditioner, or air conditioner, is a unit for providing process air to a space area, typically a confined space. The function of the device is to adjust the parameters of temperature, humidity, cleanliness, air flow rate and the like of the air in the room (or the closed space or the area) so as to meet the requirements of human comfort or the technological process.

In the development process of the general commercial multi-connected air conditioner outdoor unit, the problems of heat dissipation and water resistance of the electric control box are difficult problems in the industry. In the existing market products, the electric box is used for opening the heat dissipation holes to control the temperature of internal components, so that the service life and reliability of the unit in the operation process are ensured. But the risk of water inflow and dust inflow can appear in the trompil, influences the normal operating of unit.

Disclosure of Invention

The utility model aims at providing an electrical apparatus box and air conditioning unit promotes the heat dispersion of the outer machine of air conditioner.

In a first aspect, an embodiment of the present application provides an electrical box, including: the box body comprises a plurality of wall surfaces; the circuit board assembly is arranged in the box body; and the refrigerant channel is arranged around the plurality of wall surfaces, and the circuit board assembly is positioned on the surrounding path of the refrigerant channel.

In one embodiment of the present application, the plurality of wall surfaces includes a plurality of inner walls and a plurality of outer walls, the refrigerant channel surrounds the plurality of inner walls, and/or the plurality of outer walls.

In one embodiment of the present application, the plurality of walls includes: top wall, diapire and the first lateral wall and the second lateral wall of opposite setting.

In one embodiment of the present application, the circuit board assembly is disposed on the plurality of inner walls, and the circuit board assembly includes: the first compressor driving plate and the second compressor driving plate are respectively arranged on the first side wall and the second side wall of the box body; and the fan driving plate is arranged on the top wall of the box body.

In an embodiment of the application, the cooling device further comprises a plurality of groups of cooling fins, wherein the plurality of groups of cooling fins are respectively provided with a plurality of clamping grooves, and the cooling medium channel penetrates through the plurality of clamping grooves.

In an embodiment of the application, the air conditioner further comprises a plurality of fans, and the air outlet side of each fan corresponds to the plurality of clamping grooves.

In one embodiment of the present application, the plurality of sets of heat dissipation fins are disposed on the plurality of outer walls of the case, the plurality of sets of heat dissipation fins include: the first group of radiating fins and the second group of radiating fins are respectively arranged on the first side wall and the second side wall and are correspondingly arranged with the first compressor driving plate and the second compressor driving plate; and the third group of radiating fins are arranged on the top wall and correspond to the fan driving plate.

In one embodiment of the present application, the filter further comprises a first filter plate and a second filter plate, and the first filter plate and the second filter plate are arranged at intervals on the bottom wall.

In one embodiment of the present application, the box body is an aluminum profile box body.

In a second aspect, an embodiment of the present application further provides an air conditioning unit, including: the electrical box of any one of the first aspects.

The embodiment of the application provides an electrical apparatus box, include: the box body comprises a plurality of wall surfaces; the circuit board assembly is arranged in the box body; and the refrigerant channel is arranged around the plurality of wall surfaces, and the circuit board assembly is positioned on the surrounding path of the refrigerant channel. The application adopts the layout structure of the surrounding type refrigerant channel, the system low-temperature refrigerant is taken away through the refrigerant channel by the heat of the circuit board assembly inside the electric box through the wall surface, and the surrounding type refrigerant channel can avoid forming a low-temperature plane area in the electric box, the heat exchange quantity between the electric box and the outside is improved, the ring temperature of the electric box is reduced, thereby improving the temperature rise condition of the circuit board assembly under extreme working conditions, in addition, the refrigerant channel is arranged on a plurality of wall surfaces of the box body in a surrounding manner on the premise of not providing a heat dissipation hole, all the circuit board assemblies in the electric box are dissipated by the refrigerant channel, the electric box is prevented from water inlet under the weather condition of wind and rain, and the circuit board assembly is effectively cooled, so that the heat dissipation problem of the fully-sealed electric box of an air conditioner unit and the heat dissipation and waterproof industry bottleneck problem are solved.

The embodiment of the application also provides an air conditioning unit, which comprises the electrical box, so that the air conditioning unit has the advantage of improving the heat dissipation performance, and the details are not repeated here.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief description will be given below of the drawings that are needed in the embodiments or the prior art descriptions, and it is obvious that the drawings in the following description are some embodiments of the present application, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art. In addition, in the drawings, like parts are designated with like reference numerals and the drawings are not drawn to actual scale.

Fig. 1 is a schematic structural diagram of a first view angle of an electrical box according to an embodiment of the present application;

fig. 2 is a schematic structural diagram illustrating a refrigerant flow at a first view angle of an electrical box according to an embodiment of the present disclosure;

fig. 3 is a schematic structural diagram of a second view angle of an electrical box according to an embodiment of the present application.

Reference numerals illustrate:

1. a case body; 11. a first sidewall; 12. a second sidewall; 13. a top wall; 14. a bottom wall; 2. a circuit board assembly; 21. a fan driving plate; 22. a first compressor drive plate; 23. a second compressor drive plate; 3. a refrigerant passage; 4. a heat radiation fin; 41. a clamping groove; 51. a first filter plate; 52. and a second filter plate.

Detailed Description

For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present application based on the embodiments herein.

Fig. 1 is a schematic structural diagram of a first view angle of an electrical box according to an embodiment of the present application; fig. 2 is a schematic structural diagram illustrating a refrigerant flow at a first view angle of an electrical box according to an embodiment of the present disclosure; fig. 3 is a schematic structural diagram of a second view angle of an electrical box according to an embodiment of the present application.

In view of this, as shown in fig. 1 to 3, an embodiment of the present application provides an electrical box, including: a case 1 including a plurality of wall surfaces; a circuit board assembly 2, wherein the circuit board assembly 2 is arranged in the box body 1; and the refrigerant channel 3 is arranged around the plurality of wall surfaces, and the circuit board assembly 2 is positioned on the surrounding path of the refrigerant channel 3. The application adopts the layout structure of the surrounding type refrigerant channel 3, the system low-temperature refrigerant is taken away the heat of the circuit board assembly 2 inside the electric box through the wall surface by the refrigerant channel 3, the surrounding type refrigerant channel 3 can avoid forming a low-temperature plane area in the electric box, the heat exchange quantity between the electric box and the outside is improved, the ring temperature of the electric box is reduced, thereby improving the temperature rise condition of the circuit board assembly 2 under extreme working conditions, in addition, the refrigerant channel 3 is arranged on a plurality of wall surfaces of the box body 1 in a surrounding way on the premise of not providing a heat dissipation hole, the refrigerant pipeline is utilized for dissipating heat of all the circuit board assemblies 2 in the electric box, the electric box is not fed with water under the weather condition of wind and rain, and the circuit board assembly 2 is effectively cooled, thereby solving the heat dissipation problem of the full-sealed electric box of the air conditioning unit and the bottleneck problem of heat dissipation and water resistance.

In further embodiments, the plurality of wall surfaces includes a plurality of inner walls and a plurality of outer walls disposed in one-to-one correspondence, and the refrigerant passage 3 surrounds the plurality of inner walls and/or the plurality of outer walls. That is, in this embodiment, the refrigerant channel 3 may be disposed around the inner wall and the outer wall of the box body 1 or disposed around both the inner wall and the outer wall, so as to enable the refrigerant to flow in the refrigerant channel 3 at the inner wall and/or the outer wall of the electrical box, thereby performing heat exchange with the circuit board assembly 2 through the wall surface, and realizing overall heat dissipation and cooling.

The case 1 in this embodiment includes a plurality of wall surfaces, the plurality of wall surfaces enclose a cavity, the circuit board assembly 2 is disposed in the cavity, and the plurality of wall surfaces include: a top wall 13, a bottom wall 14, and oppositely disposed first and

second side walls

11, 12.

Further, the circuit board assembly 2 is disposed on the plurality of inner walls, and the circuit board assembly 2 includes: a first compressor driving plate 22 and a second compressor driving plate 23 respectively disposed on the first side wall 11 and the second side wall 12 of the case 1; and a fan driving plate 21 disposed on the top wall 13 of the case 1. Because the inner wall of box body 1 is all arranged in to circuit board subassembly 2, refrigerant passageway 3 arranges in inner wall and/or outer wall, arranges in refrigerant passageway 3 of outer wall and can laminate through wall and fan drive plate 21, first compressor drive plate 22 and second compressor drive plate 23, produces the heat exchange, reaches the purpose of heat dissipation cooling, arranges in refrigerant passageway 3 of inner wall can with fan drive plate 21, first compressor drive plate 22 and second compressor drive plate 23 direct contact, produces the heat exchange, reaches the purpose of heat dissipation cooling.

In this embodiment, the circuit board assembly 2 (i.e. heating component), the first compressor driving board 22 and the second compressor driving board 23 are respectively disposed on the first side wall 11 and the second side wall 12 of the electrical box assembly, the first filtering board 51 and the second filtering board are disposed on the bottom wall 14 at intervals, meanwhile, the fan driving board 21 is disposed on the top wall 13 of the electrical box, the refrigerant channel 3 is arranged in a surrounding manner and is prevented from being tightly attached to the box body 1 of the electrical box, and through heat exchange with the exterior of the electrical box, the working temperature of the air conditioner can be reduced, and the normal operation of the air conditioner unit is ensured. Compared with the existing double-layer electrical components in the market, the heat dissipation devices of the front layer and the back layer are uneven in heat dissipation, heat accumulation is easy to occur when internal air flows to dissipate heat, the temperature of a certain position of the circuit board assembly 2 is high, and the running risk of an air conditioning unit is high. The circuit board assembly 2 of tiling surrounding type is comparatively even in the inside ambient temperature everywhere of electrical apparatus box, can not produce the heat and pile up.

Further, in order to improve the heat dissipation efficiency, the present embodiment further includes a plurality of groups of heat dissipation fins 4, the plurality of groups of heat dissipation fins 4 are respectively provided with a plurality of clamping grooves 41, and the refrigerant channels 3 pass through the plurality of clamping grooves 41. In addition, a plurality of fans are further included, and the air outlet side of each fan is arranged corresponding to the plurality of clamping grooves 41. According to the embodiment, through the structural form that the refrigerants and the air-cooled heat dissipation are combined, the heat dissipation fins 4 are added on the outer wall of the box body 1, the plurality of clamping grooves 41 are formed in the heat dissipation fins 4, the refrigerant channels 3 are embedded into the clamping grooves 41, the outer fan rotates to drive the unit wind field, heat exchange is performed when the unit wind field passes through the heat dissipation fins 4 again, the heat dissipation area is increased, and the air-cooled heat dissipation and the refrigerant heat dissipation are combined, so that the heat exchange capacity of the whole electric appliance box can be improved.

Specifically, the plurality of sets of heat dissipation fins 4 are disposed on the plurality of outer walls of the box body 1, and the plurality of sets of heat dissipation fins 4 include: the first group of radiating fins 4 and the second group of radiating fins 4 are respectively arranged on the first side wall 11 and the second side wall 12 and are arranged corresponding to the first compressor driving plate 22 and the second compressor driving plate 23; and a third group of heat radiating fins 4 provided on the top wall 13 and corresponding to the fan driving plate 21. Since the first group of heat radiating fins 4 and the second group of heat radiating fins 4 are respectively arranged on the first side wall 11 and the second side wall 12 and are arranged corresponding to the first compressor driving plate 22 and the second compressor driving plate 23; the third group of radiating fins 4 is arranged on the top wall 13 and corresponds to the fan driving plate 21, the radiating fins 4 are used for radiating heat to the greatest extent at the positions of the motor driving plate, the first compressor driving plate 22 and the second compressor driving plate 23 through air cooling, the temperature of the refrigerant in the refrigerant channel 3 is dispersed to the greatest extent, and the heat radiating and cooling capacity of the positions of the motor driving plate, the first compressor driving plate 22 and the second compressor driving plate 23 is improved.

Further, the electrical box of the present embodiment further includes a first filter plate 51 and a second filter plate, where the first filter plate 51 and the second filter plate are disposed at intervals on the bottom wall 14. The motor drive plate, the first compressor drive plate 22, the second compressor drive plate 23, the first filter plate 51 and the second filter plate are distributed in the electrical box, so that the heat dissipation and cooling effects are improved.

Wherein, box body 1 is aluminium alloy box body 1, and refrigerant passageway 3 is the copper pipe, and aluminium alloy and copper pipe heat exchange ability are strong. The main point of the present embodiment is to provide an electrical box structure of a surrounding refrigerant channel 3, wherein a copper pipe contacts with a heating chip of a motor driving plate, a first compressor driving plate 22 and a second compressor driving plate 23 through a radiator aluminum plate for heat exchange, and the heat is volatilized and taken away by using a low-temperature refrigerant. The layout of the surrounding refrigerant channels 3 can manufacture the low-temperature environment inside the electrical box, reduce the working temperatures of the motor driving plate, the first compressor driving plate 22 and the second compressor driving plate 23, and ensure the service lives of the motor driving plate, the first compressor driving plate and the second compressor driving plate. The electric box surrounding type refrigerant pipe running mode provided by the embodiment utilizes the refrigerant to circulate continuously, and the external refrigerant channel 3 is in contact with the sheet metal part of the electric box in the process of refrigerant circulation, so that the surface temperature of the electric box is reduced, the internal heat exchange of the electric box is further increased, the stable internal temperature environment of the electric box is maintained, and the temperature rise condition of the circuit board assembly 2 is effectively controlled.

The electrical box provided by the embodiment cancels all heat dissipation holes of the original electrical box, thereby achieving a full-sealing state and simultaneously meeting the IP55 dustproof and waterproof grade in the industry. For the heat dissipation problem of the integrated circuit board, in this embodiment, the circuit board assembly 2 (i.e. the heating element), the first compressor driving board 22 and the second compressor driving board 23 are respectively disposed on the first side wall 11 and the second side wall 12 of the electrical box assembly, the first filtering board 51 and the second filtering board are disposed on the bottom wall 14 at intervals, meanwhile, the fan driving board 21 is disposed on the top wall 13 of the electrical box, the refrigerant channel 3 is prevented from being tightly attached to the box body 1 of the electrical box by adopting surrounding layout, and through heat exchange with the exterior of the electrical box, the working temperature of the air conditioner can be reduced, and the normal operation of an air conditioning unit is ensured. Compared with the existing double-layer electrical components in the market, the heat dissipation devices of the front layer and the back layer are uneven in heat dissipation, heat accumulation is easy to occur when internal air flows to dissipate heat, the temperature of a certain position of the circuit board assembly 2 is high, and the running risk of an air conditioning unit is high. The circuit board assembly 2 of tiling surrounding type is comparatively even in the inside ambient temperature everywhere of electrical apparatus box, can not produce the heat and pile up. The heat dissipation mode that mainly adopts is refrigerant heat dissipation, and what this embodiment provided is with refrigerant passageway 3 along the outer wall and/or the inner wall surrounding type arrangement of electrical apparatus box, compares in the scheme that the refrigerant pipe was placed to current electrical apparatus box single face, and the overall heat transfer of electrical apparatus box is more favorable to in the overall layout that this patent provided. In the whole machine operation process, along with the circulation flow of the refrigerant in the refrigerant channel 3, heat on the IPM module can be fully circulated and taken away by the refrigerant at the motor driving plate, the first compressor driving plate 22 and the second compressor driving plate 23 by utilizing the aluminum profile radiating fins 4.

Among them, the Intelligent Power Module (IPM) is an abbreviation of Intelligent Power Module, is an advanced power switching device, and has the advantages of high current density, low saturation voltage and high voltage resistance of GTR (high power transistor), and the advantages of high input impedance, high switching frequency and low driving power of MOSFET (field effect transistor). Moreover, the IPM is internally integrated with logic, control, detection and protection circuits, so that the use is convenient, the volume and development time of the system are reduced, the reliability of the system is greatly enhanced, the IPM is suitable for the development direction of the current power device, namely a modularized, compound and Power Integrated Circuit (PIC), and the IPM is more and more widely applied in the power electronics field.

The embodiment of the application also provides an air conditioning unit, which comprises: the electrical box of any one of the first aspects. The air conditioning unit comprises an air conditioning inner unit and an air conditioning outer unit, and the electric box is arranged on the air conditioning outer unit.

It should be noted that references in the specification to "one embodiment," "an example embodiment," "some embodiments," etc., indicate that the embodiment described may include a particular feature, structure, or characteristic, but every embodiment may not necessarily include the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Furthermore, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the art to effect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.

It should be readily understood that the terms "on … …", "above … …" and "above … …" in this disclosure should be interpreted in the broadest sense such that "on … …" means not only "directly on something", but also includes "on something" with intermediate features or layers therebetween, and "above … …" or "above … …" includes not only the meaning "on something" or "above" but also the meaning "above something" or "above" without intermediate features or layers therebetween (i.e., directly on something).

Further, spatially relative terms, such as "below," "beneath," "above," "over," and the like, may be used herein for ease of description to describe one element or feature's relationship to another element or feature as illustrated. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. The device may have other orientations (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that in this document, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An electrical box, comprising:

the box body comprises a plurality of wall surfaces;

the circuit board assembly is arranged in the box body; and

the refrigerant channels are arranged around the plurality of wall surfaces, and the circuit board assembly is located on the surrounding path of the refrigerant channels.

2. The electrical box of claim 1, wherein the plurality of wall surfaces includes a plurality of inner walls and a plurality of outer walls, the refrigerant channel surrounding the plurality of inner walls, and/or the plurality of outer walls.

3. The electrical box of claim 2, wherein the plurality of wall surfaces comprises: top wall, diapire and the first lateral wall and the second lateral wall of opposite setting.

4. The electrical box of claim 2, wherein the circuit board assembly is disposed on the plurality of inner walls, the circuit board assembly comprising:

the first compressor driving plate and the second compressor driving plate are respectively arranged on the first side wall and the second side wall of the box body; and

the fan driving plate is arranged on the top wall of the box body.

5. The electrical box of claim 4, further comprising a plurality of sets of heat fins, each set of heat fins having a plurality of slots, the refrigerant channels passing through the plurality of slots.

6. The electrical box of claim 5, further comprising a plurality of fans, wherein an air outlet side of the fans is configured to correspond to the plurality of clamping grooves.

7. The electrical box of claim 5 or 6, wherein the plurality of sets of heat dissipation fins are provided on the plurality of outer walls of the box body, the plurality of sets of heat dissipation fins comprising:

the first group of radiating fins and the second group of radiating fins are respectively arranged on the first side wall and the second side wall and are correspondingly arranged with the first compressor driving plate and the second compressor driving plate; and

and the third group of radiating fins are arranged on the top wall and correspond to the fan driving plate.

8. The electrical box of claim 3, further comprising a first filter plate and a second filter plate, the first filter plate and the second filter plate being spaced apart from the bottom wall.

9. The electrical box according to claim 1, wherein the box body is an aluminum profile box body.

10. An air conditioning unit comprising the electrical box of any one of claims 1 to 9.