CN115426853A - Electrical apparatus box and air conditioning unit - Google Patents

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 box and air conditioning unit

technical field

The invention relates to the technical field of refrigeration, in particular to an electrical box and an air conditioner unit.

Background technique

With the development of the economy and the improvement of people's living standards, people pay more attention to energy saving and emission reduction in daily life while pursuing a safe and convenient living space. Energy saving and emission reduction refers to reducing energy waste and reducing exhaust emissions.

Regardless of the city or the country, people's lives are closely related to electrical components. Air conditioners and electrical boxes are widely used. Especially in summer, the ambient temperature rises, and the components themselves generate heat. The temperature of the electrical box will remain at a high level, which will not only affect the electrical components. The service life is longer, and it is more likely to cause safety accidents due to excessive temperature. In order to improve the service life of electronic components, the heat dissipation of the electrical box is particularly important. Usually, the above-mentioned problems are solved by digging cooling holes on the left and right sides of the electrical box or installing cooling fans. However, the heat dissipation holes and the heat dissipation fan will make the electrical box no longer sealed, and the dust and insects entering through the heat dissipation hole and the heat dissipation fan will adhere to the components, resulting in short circuit of the components in the electrical box, and even damage to the electrical box.

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

To sum up, the electrical box in the prior art has the problem of not dissipating heat in a timely manner, resulting in damage to components or shortened service life.

Contents of the invention

Embodiments of the present invention provide an electrical box and an air-conditioning unit to solve the problem in the prior art that the electrical box does not dissipate heat in a timely manner, resulting in damage to components or shortened service life.

In order to achieve the above object, the present invention provides an electrical box, which includes a casing and heat dissipation fins, the heat dissipation fins are installed on the outer surface of the casing, and the heat dissipation fins have hollow through holes.

Further, the cooling fins are U-shaped plates, the U-shaped plates enclose a hollow through hole, and the notches of the U-shaped plates are connected to the outer surface of the housing.

Further, the inner surface of the hollow through-hole is laid with heat-conducting material.

Further, the casing includes a shell plate, and the cooling fins are connected to the shell plate; the electrical box includes components arranged inside the shell, and the components are correspondingly arranged at positions of the shell plate.

Further, the electrical box includes: a mounting plate, the mounting plate is arranged inside the housing, and the components are fixed on the first side of the mounting plate; the second side of the mounting plate is connected to the shell plate, and the second side of the mounting plate is connected to the shell There is a thermally conductive layer between the plates.

Further, a heat conducting layer is provided on the first side of the mounting board.

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

Further, the number of heat dissipation fins is multiple, the plurality of heat dissipation fins are arranged at intervals, and there is an installation space between two adjacent heat dissipation fins; the electrical box also includes a heat pipe, and the heat pipe is detachably arranged in the installation space.

Further, the electrical box also includes a mounting bracket, which is fixedly connected to the casing; and the heat pipe is detachably connected to the mounting bracket.

According to another aspect of the present invention, an air conditioner unit is provided, including the above electrical box.

The heat dissipation fins on the electrical box of the present invention have hollow through holes, and the contact surface between the hollow through holes and the air is large, so that the heat exchange area of the heat dissipation fins is increased, and the heat exchange efficiency is improved. If the air flows, more air can be taken away. of heat. Compared with the common electrical box in the prior art, the electrical box of the present invention has a timely heat dissipation effect, can effectively reduce the temperature of the internal components of the electrical box, and prevent the components from being damaged or shortened in life. Not only that, the electrical box of the present invention can be used no matter whether it is a sealed structure or an open heat dissipation structure, and can meet the heat dissipation requirements.

Description of drawings

Fig. 1 is the three-dimensional schematic diagram of the structure of the electric box of the embodiment of the present invention;

Fig. 2 is a partial structural schematic diagram of an electrical box according to an embodiment of the present invention;

3 is a schematic diagram of the structural cooperation between the mounting bracket and the housing of the electrical box according to the embodiment of the present invention;

Fig. 4 is a schematic diagram of the internal structure of the electrical box according to the embodiment of the present invention.

detailed description

The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.

1 to 4, according to an embodiment of the present invention, an electrical box is provided. The electrical box includes a housing 10 and cooling fins 20. The cooling fins 20 are installed on the outer surface of the housing 10. The cooling fins The sheet 20 has a hollow through hole 21 .

The heat dissipation fins on the electrical box of the present invention have hollow through holes, and the contact surface between the hollow through holes and the air is large, so that the heat exchange area of the heat dissipation fins is increased, and the heat exchange efficiency is improved. If the air flows, more air can be taken away. of heat. Compared with the common electrical box in the prior art, the electrical box of the present invention has a timely heat dissipation effect, can effectively reduce the temperature of the internal components of the electrical box, and prevent the components from being damaged or shortened in life. Not only that, the electrical box of the present invention can be used no matter whether it is a sealed structure or an open heat dissipation structure, and can meet the heat dissipation requirements.

As shown in FIG. 2 , preferably, the cooling fins 20 are U-shaped plates, the U-shaped plates enclose the hollow through hole 21 , and the slots of the U-shaped plates are connected to the outer surface of the housing 10 . The structure of the U-shaped plate can form a hollow through hole with the largest cross-sectional area in a limited size. The U-shaped plate can not only achieve the effect of the above-mentioned heat dissipation fins, but also achieve the best heat exchange efficiency in a limited size. Moreover, the industrial manufacturing of the U-shaped plate is simple, the cost is low, and the utility model has good application prospects. As for the material of the U-shaped plate, the same material as that of the electrical box can be selected, and it is integrally formed with the housing of the electrical box.

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

Referring to FIG. 4 , the casing 10 includes a shell plate 11 , and the cooling fins 20 are connected to the shell plate 11 . The electrical box includes components arranged inside the housing 10 , and the components are correspondingly arranged at the position of the shell plate 11 . Setting the position of the components at the closest position to the heat sink can allow the heat to be transferred to the heat sink at the first time, so as to dissipate heat in time and prevent the temperature from being too high.

The electrical box includes a mounting plate 30, the mounting plate 30 is arranged inside the housing 10, and the components are fixed on the first side of the mounting plate 30; the second side of the mounting plate 30 is connected to the shell plate 11, and the second side of the mounting plate 30 There is a heat conducting layer between the side surface and the shell plate 11 . After the mounting plate 30 absorbs the heat of the components, it conducts to the shell plate 11 through the heat conduction layer, and the shell plate 11 conducts the heat to the heat dissipation fins 20, and the shell plate 11 and the heat dissipation fins 20 simultaneously dissipate heat. A heat conduction layer is provided between the second side of 30 and the shell plate 11 to further accelerate the heat conduction speed. Not only that, a double-layer structure is formed between the mounting plate and the shell plate, and the components do not need to open holes or use fans for heat dissipation under the condition of heat dissipation. The electrical box is effectively dust-proof, fly-proof, and moisture-proof.

Preferably, the first side of the mounting board 30 has a heat conducting layer. The thermally conductive layer is formed of silicon wax. Due to the thermal conductivity of silicon wax and the thermal conductivity of metal, the heat of components is transferred from the silicon wax to the mounting plate, and the heat in the electrical box is transferred to the shell plate through the silicon wax at the first time, and then the heat is transferred to the heat sink with hollow through holes. on the fins. The cooling fins exchange heat with the environment to reduce the temperature inside the electrical box and reduce the temperature of components.

As shown in FIG. 1 and FIG. 2 , there are multiple heat dissipation fins 20 , the plurality of heat dissipation fins 20 are arranged at intervals, and there is an installation space between two adjacent heat dissipation fins 20 . The electrical box also includes a heat pipe 40, which is detachably arranged in the installation space. Based on the design of the electrical box, the mature heat pipe technology is used to assist cooling. According to the heat dissipation principle of the heat pipe, the electrical box can be optionally placed in the ideal area of the unit design to prevent condensation and reduce temperature efficiently. Place the condensing section of the heat pipe directly on the condensing end of the air conditioner, and the negative pressure generated by the fan makes the low-temperature air flow at high speed, so that the heat from the evaporating section at the bottom of the heat pipe is continuously transferred to the condensing section for heat exchange to achieve the best heat exchange effect good. The use of heat pipes for heat conduction not only avoids the condensation of the electrical box placed at the cold end, but also effectively utilizes the space structure of the air conditioner to make the heat exchange of the gravity heat pipe sufficient.

The heat pipe of this embodiment uses the gravity heat pipe structure in the prior art, and one or more gravity heat pipes can be calculated and installed according to the operating environment temperature, heating element, electrical box temperature and required heat dissipation to achieve a high degree of matching. The gravity heat pipe does not require a liquid-absorbing core, is simple to manufacture, and has low cost, reduces the thermal resistances R3 and R7 generated by the liquid-absorbing core itself, and has good heat transfer performance. The working fluid of the heat pipe has high vaporization latent heat, thermal conductivity, suitable saturation pressure and boiling point, low viscosity and good stability, so it has efficient heat transfer, and uses gravity heat pipe for heat transfer. The structural principle and use of the heat pipe are all prior art, and will not be repeated in the present invention.

As shown in FIG. 2 and FIG. 3 , the electrical box further includes a mounting bracket 50 fixedly connected to the casing 10 ; the heat pipe 40 is detachably connected to the mounting bracket 50 . The installation bracket 50 can choose the structure in which the two connecting pieces are fixed by bolts as shown in the figure, or can choose other structures that can be detachable from the tubular structure, which is not specifically limited in the present invention.

The number of heat pipes installed can be selected according to the structure, size and location of the air conditioner, and the required heat dissipation. Heat pipes of different sizes and lengths can also be customized according to the needs of the air conditioner. The installation bracket 50 can be disassembled and installed with the heat pipe 40 arbitrarily, which is more convenient for repair and maintenance. The electrical box can be dedicated to special air conditioners without separate power supply, and the structure is highly matched. It is suitable for various special environments such as boats and outdoors.

The electrical box of the present invention can meet the needs of different working conditions and different heating components by adjusting the interval between the fins and the number of heat pipes used. The heat pipe is placed between the cooling fins, so that the heat exchange efficiency is high, the heat of the electrical box is low in the ambient temperature, and the heat is transmitted to the tail at the first time, and the probability of condensation is low. Even in case of condensation, it can condense on the fins or heat pipes and drip along the pipe wall, keeping dry, low temperature and safe. The invention retains the fully sealed electrical box, which is distinguished from traditional fans and perforated electrical boxes, and the heat pipe has a long service life, a variety of pipe diameter types, and a wide variety of working fluids. Different sizes and lengths can be customized according to the needs of the air conditioner. Heat pipe.

The present invention also provides an embodiment of an air conditioning unit, including the electrical box of the above embodiment.

It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and/or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and/or combinations thereof.

It should be noted that the terms "first" and "second" in the description and claims of the present application and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein can be practiced in sequences other than those illustrated or described herein.

Of course, the above are preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, some improvements and modifications can be made without departing from the basic principle of the present invention, and these improvements and modifications are also regarded as the protection scope of the present invention.

Claims (10)

1. An electrical box, characterized in that it comprises a housing (10) and heat dissipation fins (20), the heat dissipation fins (20) are installed on the outer surface of the housing (10), and the heat dissipation fins The sheet (20) has a hollow through hole (21). 2. The electrical box according to claim 1, characterized in that, The heat dissipation fins (20) are U-shaped plates, the U-shaped plates surround the hollow through hole (21), and the notches of the U-shaped plates are connected to the outer surface of the housing (10) superior. 3. The electrical box according to claim 1 or 2, characterized in that, the inner surface of the hollow through hole (21) is laid with the heat-conducting material. 4. The electrical box according to claim 1, characterized in that, The housing (10) includes a shell plate (11), and the heat dissipation fins (20) are connected to the shell plate (11); The electrical box includes components arranged inside the housing (10), and the components are correspondingly arranged at the position of the shell plate (11). 5. The electrical box according to claim 4, wherein the electrical box comprises: a mounting plate (30), the mounting plate (30) is arranged inside the housing (10), and the components are fixed on the first side of the mounting plate (30); The second side of the mounting plate (30) is connected to the shell plate (11), and there is a heat conducting layer between the second side of the mounting plate (30) and the shell plate (11). 6. The electrical box according to claim 5, characterized in that, a heat conducting layer is provided on the first side of the mounting plate (30). 7. The electrical box according to claim 5 or 6, characterized in that the heat conducting layer is formed of silicon wax. 8. The electrical box according to claim 1, characterized in that, the number of the heat dissipation fins (20) is multiple, and a plurality of the heat dissipation fins (20) are arranged at intervals, and two adjacent There is an installation space between the cooling fins (20); The electrical box also includes a heat pipe (40), and the heat pipe (40) is detachably arranged in the installation space. 9. The electrical box according to claim 8, characterized in that, the electrical box further comprises a mounting bracket (50), and the mounting bracket (50) is fixedly connected to the housing (10); The heat pipe (40) is detachably connected to the installation bracket (50). 10. An air conditioning unit, characterized in that it comprises the electrical appliance box according to any one of claims 1-9.

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