CN115426853A

CN115426853A - Electrical apparatus box and air conditioning unit

Info

Publication number: CN115426853A
Application number: CN202211175656.8A
Authority: CN
Inventors: 魏欣; 何哲; 张晓琛; 李秀元
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2022-09-26
Filing date: 2022-09-26
Publication date: 2022-12-02

Abstract

The invention discloses an electrical box and an air conditioning unit, wherein the electrical box comprises a shell and radiating fins, the radiating fins are arranged on the outer surface of the shell, and the radiating fins are provided with hollow through holes. The electric box and the air conditioning unit effectively solve the problem that components are damaged or the service life of the electric box is shortened due to untimely heat dissipation.

Description

Electrical apparatus box and air conditioning unit

Technical Field

The invention relates to the technical field of refrigeration, in particular to an electric appliance box and an air conditioning unit.

Background

With the development of economy and the improvement of the living standard of people, people pay more attention to energy conservation and emission reduction of daily life while pursuing safe and convenient living space. Energy conservation and emission reduction refer to reduction of energy waste and reduction of exhaust emission.

No matter in city or country, people's life is closely related with the electric component, and air conditioner, electrical apparatus box use extensively, especially get into summer ambient temperature rise, and components and parts self generate heat, and electrical apparatus box temperature can keep at higher level, not only influences the life of electrical part, more probably because the high incident that causes of temperature. In order to prolong the service life of electronic components, the heat dissipation of the electrical box is particularly important. In general, heat dissipation holes are drilled in the left and right sides of the electrical box or heat dissipation fans are installed to solve the above problems. But louvre and radiator fan can make the electrical apparatus box no longer sealed, and dust, worm etc. that get into through louvre and radiator fan can be attached to above the components and parts, lead to the components and parts short circuit in the electrical apparatus box, cause the damage of electrical apparatus box even.

In view of this, it is necessary to improve a heat dissipation method of an electrical box in the prior art, which not only can efficiently dissipate heat to ensure the service life and electrical safety of electronic components, but also can well save resources and protect the environment, and realize energy conservation, emission reduction and sustainable development.

In conclusion, the electrical box in the prior art has the problem that components are damaged or the service life is reduced due to untimely heat dissipation.

Disclosure of Invention

The embodiment of the invention provides an electrical box and an air conditioning unit, and aims to solve the problem that components are damaged or the service life of the electrical box is shortened due to untimely heat dissipation in the prior art.

In order to achieve the above object, the present invention provides an electrical box, which comprises a housing and a heat dissipating fin, wherein the heat dissipating fin is mounted on an outer surface of the housing, and the heat dissipating fin has a hollow through hole.

Further, the radiating fins are U-shaped plates, hollow through holes are formed by the U-shaped plates in a surrounding mode, and notches of the U-shaped plates are connected to the outer surface of the shell.

Further, the inner surface of the hollow through hole is paved with heat conduction materials.

Furthermore, the shell comprises a shell plate, and the radiating fins are connected to the shell plate; the electrical apparatus box is including setting up the components and parts inside the casing, and components and parts correspond the setting and locate at the shell plate position.

Further, the electrical box includes: the mounting plate is arranged in the shell, and the component is fixed on the first side surface of the mounting plate; the second side of the mounting plate is attached to the shell plate with a thermally conductive layer therebetween.

Further, the mounting plate has a thermally conductive layer on the first side.

Further, the heat conductive layer is formed of silicon wax.

Furthermore, the number of the radiating fins is multiple, the radiating fins are arranged at intervals, and an installation space is formed between every two adjacent radiating fins; the electrical box further comprises a heat pipe, and the heat pipe is detachably arranged in the installation space.

Furthermore, the electrical box also comprises a mounting bracket which is fixedly connected to the shell; the heat pipe is detachably connected to the mounting bracket.

According to another aspect of the invention, an air conditioning unit is provided, which comprises the electrical box.

The radiating fins on the electric box are provided with the hollow through holes, the contact surface of the hollow through holes and air is large, the heat exchange area of the radiating fins is increased, the heat exchange efficiency is improved, and more heat can be taken away if the air flows. Compared with the common electrical box in the prior art, the electrical box has the advantages that the heat dissipation effect is timely, the temperature of components in the electrical box can be effectively reduced, and the components are prevented from being damaged or the service life of the components is shortened. Moreover, the electric box can be used and meets the heat dissipation requirement no matter in a sealing structure or an open type heat dissipation structure.

Drawings

FIG. 1 is a perspective view of an electrical box according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a portion of an electrical box according to an embodiment of the present invention;

FIG. 3 is a schematic view of the structural cooperation of the mounting bracket and the housing of the electrical box of an embodiment of the present invention;

fig. 4 is a schematic view of the internal structure of the electric box according to the embodiment of the present invention.

Detailed Description

The invention is described in further detail below with reference to the figures and the examples, but without limiting the invention.

Referring to fig. 1 to 4, according to an embodiment of the present invention, there is provided an electrical box including a case 10 and heat dissipation fins 20, the heat dissipation fins 20 being mounted on an outer surface of the case 10, the heat dissipation fins 20 having hollow through-holes 21.

The radiating fin on the electric box is provided with the hollow through hole, the contact surface of the hollow through hole and air is large, so that the heat exchange area of the radiating fin is increased, the heat exchange efficiency is improved, and more heat can be taken away if the air flows. Compared with the common electrical box in the prior art, the electrical box has the advantages that the heat dissipation effect is timely, the temperature of components in the electrical box can be effectively reduced, and the components are prevented from being damaged or the service life of the components is shortened. Moreover, the electric box disclosed by the invention can be used and meets the heat dissipation requirement no matter in a sealing structure or an open type heat dissipation structure.

As shown in fig. 2, the heat dissipating fins 20 are preferably U-shaped plates, which surround a hollow through hole 21, and the notches of the U-shaped plates are attached to the outer surface of the housing 10. The U-shaped plate can form a hollow through hole with the largest sectional area under the limited size, and not only can the U-shaped plate achieve the effect of the radiating fin, but also can achieve the best heat exchange efficiency under the limited size. And the U-shaped plate has simple industrial manufacture, low cost and good application prospect. As for the material of the U-shaped plate, the same material as the electric box can be selected and is integrally formed with the housing of the electric box.

In order to further improve the heat dissipation effect, the heat conduction material is laid on the inner surface of the hollow through hole, can be selected according to actual needs, and can be laid or sprayed.

Referring to fig. 4, the case 10 includes a case plate 11, and the heat radiating fins 20 are attached to the case plate 11. The electrical box comprises components arranged inside the shell 10, and the components are correspondingly arranged at the position of the shell plate 11. The position of the component is arranged at the nearest position of the discrete heat fin, so that heat can be conducted to the heat dissipation fin at the first time, heat dissipation is carried out in time, and overhigh temperature is prevented.

The electrical box comprises a mounting plate 30, the mounting plate 30 is arranged inside the shell 10, and the components are fixed on a first side surface of the mounting plate 30; the second side of the mounting plate 30 is attached to the housing plate 11 with a thermally conductive layer between the second side of the mounting plate 30 and the housing plate 11. After the mounting plate 30 absorbs heat of the component, the heat is conducted to the shell plate 11 through the heat conduction layer, the shell plate 11 conducts the heat to the radiating fins 20, the shell plate 11 and the radiating fins 20 radiate the heat at the same time, and the heat conduction speed is further accelerated by arranging the heat conduction layer between the second side of the mounting plate 30 and the shell plate 11. Moreover, a double-layer structure is formed between the mounting plate and the shell plate, the components and parts can be cooled without opening holes or using fans, and the electrical box is effectively dustproof, winged insect-proof and moistureproof.

Preferably, the mounting plate 30 has a thermally conductive layer on a first side thereof. The heat conducting layer is formed by silicon wax. Because the thermal conductivity of silicon wax and the thermal conductivity of metal, the components and parts generate heat and are transmitted to the mounting plate by the silicon wax, the heat in the electric appliance box is transmitted to the shell plate through the silicon wax for the first time, and then is transmitted to the radiating fins with the hollow through holes. The radiating fins exchange heat with the environment to reduce the temperature in the electrical appliance box and reduce the temperature of components.

Referring to fig. 1 and 2, the number of the heat dissipating fins 20 is plural, the plural heat dissipating fins 20 are arranged at intervals, and an installation space is provided between two adjacent heat dissipating fins 20. The electrical box further includes a heat pipe 40, and the heat pipe 40 is detachably disposed in the installation space. On the basis of the design of the electric appliance box, the mature heat pipe technology is utilized to assist in cooling. According to the heat dissipation principle of the heat pipe, the electrical box can be selectively placed in an ideal area designed by the unit, condensation is prevented, and the temperature is efficiently reduced. The condensation section of the heat pipe is directly arranged at the condensation end of the air conditioner, and low-temperature air flows at high speed due to the negative pressure generated by the fan, so that the heat of the evaporation section at the bottom of the heat pipe is continuously transferred to the condensation section for heat exchange, and the heat exchange effect is optimal. The heat pipe is used for heat conduction, so that condensation of the electric appliance box at the cold end is avoided, and the space structure of the air conditioner is effectively utilized to ensure that the gravity heat pipe has sufficient heat exchange.

The heat pipe of this embodiment uses the gravity heat pipe structure among the prior art, can calculate the installation one or more gravity heat pipes according to service environment temperature, heating element, electrical apparatus box temperature and the required heat dissipation capacity, reaches the height and matches. The gravity heat pipe does not need a wick, is simple to manufacture and low in cost, reduces thermal resistances R3 and R7 generated by the wick and has good heat transfer performance. The working liquid of the heat pipe has higher latent heat of vaporization, heat conductivity coefficient, proper saturated pressure and boiling point, lower viscosity and good stability, so that the heat pipe has high-efficiency heat exchange performance and uses the gravity heat pipe for heat exchange. The structural principle and the use of the heat pipe are the prior art, and the invention is not described in detail.

As shown in fig. 2 and 3, the electrical box further includes a mounting bracket 50, and the mounting bracket 50 is fixedly connected to the housing 10; the heat pipe 40 is detachably attached to the mounting bracket 50. The mounting bracket 50 may be a structure for fixing two connecting pieces by bolts as shown in the figure, or may be another structure for realizing the detachable connection with the tubular structure, and the invention is not particularly limited.

The installation quantity of the heat pipes can be selected according to the structure, the size and the position of the air conditioner and the heat dissipation capacity required, and the heat pipes with different sizes and lengths can be customized according to the requirement of the air conditioner. The mounting bracket 50 can be freely detached from and mounted on the heat pipe 40, so that the maintenance is more convenient. The electrical box can be specially used for a special air conditioner, independent power supply is not needed, the structure is highly matched, and the air conditioner is suitable for various special environments such as ships, fields and the like.

The electric box can meet the requirements of different working conditions and different heating components by adjusting the interval of the fins and the number of the heat pipes. The heat pipe is arranged between the radiating fins, so that the heat of the electric appliance box with high heat exchange efficiency and low ambient temperature is conducted to the tail part at the first time, and the condensation probability is low. Even if condensation is generated, the condensation can be condensed on the fins or the heat pipe and drip along the pipe wall, so that the drying, low-temperature and safety are kept. The invention keeps the electric appliance box with complete sealing, is distinguished from the traditional fan and the electric appliance box with holes, has long service life of the heat pipe, various pipe diameter types and various working liquids, and can customize the heat pipes with different sizes and lengths according to the requirements of the air conditioner.

The invention further provides an embodiment of the air conditioning unit, which comprises the electric box of the embodiment.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

Of course, the above is a preferred embodiment of the present invention. It should be noted that, for a person skilled in the art, several modifications and refinements can be made without departing from the basic principle of the invention, and these modifications and refinements are also considered to be within the protective scope of the invention.

Claims

1. An electrical box, characterized by comprising a housing (10) and heat radiating fins (20), wherein the heat radiating fins (20) are mounted on the outer surface of the housing (10), and the heat radiating fins (20) are provided with hollow through holes (21).

2. The appliance box of claim 1,

the radiating fins (20) are U-shaped plates, the U-shaped plates surround the hollow through hole (21), and notches of the U-shaped plates are connected to the outer surface of the shell (10).

3. The appliance box according to claim 1 or 2, characterized in that the inner surface of the hollow through hole (21) is paved with the heat conductive material.

4. The appliance cartridge of claim 1,

the shell (10) comprises a shell plate (11), and the radiating fins (20) are connected to the shell plate (11);

the electrical box comprises components arranged inside the shell (10), and the components are correspondingly arranged at the position of the shell plate (11).

5. The appliance cartridge of claim 4, wherein the appliance cartridge comprises:

the mounting plate (30), the said mounting plate (30) is set up in the said body (10), the said components and parts are fixed on the first side of the said mounting plate (30);

the second side of the mounting plate (30) is connected to the shell plate (11), and a heat conducting layer is arranged between the second side of the mounting plate (30) and the shell plate (11).

6. The appliance box of claim 5, wherein the mounting plate (30) has a heat conductive layer on the first side.

7. The electrical enclosure of claim 5 or 6, wherein the thermally conductive layer is formed from silicone wax.

8. The electrical box according to claim 1, wherein the number of the heat dissipation fins (20) is plural, a plurality of the heat dissipation fins (20) are arranged at intervals, and an installation space is provided between two adjacent heat dissipation fins (20);

the electrical box further comprises a heat pipe (40), and the heat pipe (40) is detachably arranged in the installation space.

9. The appliance box according to claim 8, further comprising a mounting bracket (50), the mounting bracket (50) being fixedly connected to the housing (10);

the heat pipe (40) is detachably connected to the mounting bracket (50).

10. Air conditioning assembly, characterized in that it comprises an electrical box according to any one of claims 1 to 9.