CN218523737U - Electrical apparatus box and air conditioning unit - Google Patents

Abstract

The utility model discloses an electrical apparatus box and air conditioning unit, wherein, electrical apparatus box includes: the device comprises a shell, a first cavity and a second cavity are separated in the shell, and the first cavity is communicated with the second cavity through a ventilation structure; the components are respectively arranged in the first cavity and the second cavity; the cooling structure is arranged in the first cavity; a fan disposed in the second chamber; under the action of the fan, the first chamber, the ventilation structure and the second chamber form a circulating air duct. The utility model discloses an electrical apparatus box and air conditioning unit have solved the too high problem of electrical apparatus box inside temperature among the prior art effectively.

Description

Electrical apparatus box and air conditioning unit

Technical Field

The utility model relates to a refrigeration technology field particularly, relates to an electrical apparatus box and air conditioning unit.

Background

The heat dissipation of the air-conditioning electrical components is always difficult in the industry, and because the air-conditioning electrical components generate heat during operation and work, the service life of the electrical components is short, the operation efficiency is reduced, and even the electrical components are burnt out due to too high temperature.

The electrical box is used as a control center of the air conditioning unit, the reliability problem directly influences the normal use of the unit, the temperature rise of the electrical box is always a difficult problem in the industry, in the prior art, a windowing heat dissipation channel and the like have obvious heat dissipation effects, but under the installation environment of a commercial air conditioner, hidden dangers exist in the windowing heat dissipation reliability of the electrical box, such as the problems of water inlet, dust inlet and the like; if not windowing, the inside temperature rise of electrical apparatus box will become abominable, and inside temperature can't the effluvium, and inside air can't flow, forms the heat accumulation, and then leads to components and parts overheat life to reduce even high temperature burns out.

In the prior art, heat is easily formed and accumulated in the electric appliance box, so that the internal temperature of the electric appliance box is overhigh.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides an in provide an electrical apparatus box and air conditioning unit to solve among the prior art too high problem of electrical apparatus box inside temperature.

In order to achieve the above object, the utility model provides an electrical box, include: the device comprises a shell, a first cavity and a second cavity are separated in the shell, and the first cavity is communicated with the second cavity through a ventilation structure; the components are respectively arranged in the first cavity and the second cavity; the cooling structure is arranged in the first cavity; a fan disposed in the second chamber; under the action of the fan, the first chamber, the ventilation structure and the second chamber form a circulating air duct.

Further, still include first mounting panel, first mounting panel sets up inside the casing, and first mounting panel is first cavity and second cavity with casing internal partitioning, and ventilation structure is including setting up the ventilation hole on first mounting panel.

Further, the fan sets up on first mounting panel, and the air-out direction orientation of fan is located the components and parts in the second cavity.

Further, the ventilation hole comprises a first through hole and a second through hole, the first through hole is arranged at the air return opening of the fan, and the second through hole is arranged at the air outlet of the fan.

Furtherly, components and parts are including being located the first component in the second cavity, and first component is worn to establish on first mounting panel, and the refrigerant heat exchanger is fixed on first mounting panel, and refrigerant heat exchanger and first component butt carry out the heat exchange.

Further, the first component includes: the compressor driving plate penetrates through the first mounting plate and is positioned in the second chamber; and the fan drive plate is arranged on the first mounting plate in a penetrating manner and is positioned in the second chamber.

Furthermore, the number of the refrigerant heat exchangers is multiple and the refrigerant heat exchangers are fixed on the first mounting plate; at least one refrigerant heat exchanger is abutted with the compressor driving plate and performs heat exchange; and at least one refrigerant heat exchanger is abutted against the fan driving plate and performs heat exchange.

Further, the refrigerant heat exchanger includes: the first pressing plate is connected with a radiating fin;

the second pressing plate is fixedly connected to the first mounting plate and used for being abutted against the first component; the first pressing plate is connected with the second pressing plate; and the refrigerant pipe is arranged between the first pressing plate and the second pressing plate in a penetrating manner.

Furthermore, the first pressing plate is provided with a first groove, the second pressing plate is provided with a second groove, the first groove and the second groove enclose a mounting hole used for penetrating through the refrigerant pipe, and the refrigerant pipe penetrates through the mounting hole.

Further, the component includes: the filter plate is arranged in the first cavity; and the reactor is installed in the first cavity.

Further, the ventilation structure comprises a ventilation pipeline which is communicated with the first chamber and the second chamber respectively.

According to another aspect of the present invention, an air conditioning unit is provided, which includes the above-mentioned electrical box.

The electrical apparatus box is divided into two cavities with inside, sets up cooling structure in the first cavity, and cooling structure can directly cool down to the components and parts in the first cavity. The fan is arranged in the second cavity and can form a circulating air channel according to the structural layout inside the electric appliance box, and the low temperature of the cooling structure enters the second cavity to be cooled under the action of the air flow of the circulating air channel. Through cooling structure, fan, under the electrical apparatus box inner structure overall arrangement cooperation, solved the problem of electrical apparatus box inside heat collection effectively, reduced the inside temperature of electrical apparatus box, also can carry out rapid cooling to the components and parts that generate heat fast.

Drawings

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

fig. 2 is a schematic structural layout diagram of the second chamber of the electrical box according to the embodiment of the present invention;

fig. 3 is a schematic diagram of an internal structure of the electrical box according to the embodiment of the present invention;

FIG. 4 isbase:Sub>A schematic cross-sectional view taken along line A-A of FIG. 3;

fig. 5 is a schematic structural view of a refrigerant heat exchanger of the electrical box according to an embodiment of the present invention;

fig. 6 is a schematic view illustrating the cooperation between the refrigerant heat exchanger of the electrical box and the compressor driving plate according to the embodiment of the present invention;

fig. 7 is an internal wind field diagram of the electrical box according to the embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following drawings and specific examples, which should not be construed as limiting the invention.

Referring to fig. 1 to 6, according to an embodiment of the present invention, an electrical box is provided, the electrical box includes a housing 10, a component 20, a cooling structure 30 and a fan 40, a first chamber 11 and a second chamber 12 are partitioned inside the housing 10, and the first chamber 11 and the second chamber 12 are communicated through a ventilation structure; the components 20 are respectively arranged in the first chamber 11 and the second chamber 12; the temperature reducing structure 30 is arranged in the first chamber 11; a fan 40 is disposed within the second chamber 12; under the action of the fan 40, the first chamber 11, the ventilation structure and the second chamber 12 form a circulating air duct.

The electrical apparatus box is divided into two cavities with inside, sets up cooling structure in the first cavity, and cooling structure can directly cool down to the components and parts in the first cavity. The fan is arranged in the second cavity and can form a circulating air channel according to the structural layout inside the electric appliance box, and the low temperature of the cooling structure enters the second cavity to be cooled under the action of the air flow of the circulating air channel. Through under cooling structure, fan, the cooperation of electrical apparatus box inner structure overall arrangement, solved the problem of electrical apparatus box inside heat collection effectively, reduced the inside temperature of electrical apparatus box, also can carry out rapid cooling to the components and parts that generate heat fast.

The components and parts in the electrical apparatus box of well cavity in prior art arrange densely, and the air current of cavity can't flow in addition, and heat gathering is more obvious in the electrical apparatus box of single cavity, the utility model discloses compare in the electrical apparatus box of single cavity, set up two cavities and part the setting with the components and parts of different calorific capacities, the heat can not gather, cools down the heat dissipation respectively through fan and cooling structure moreover, can rapid cooling. In the electrical box with multiple independent chambers in the prior art, although components are respectively arranged in different independent chambers, heat is gathered in each independent chamber, the heat of some independent chambers is too high, the temperature of some independent chambers is lower, the phenomenon that local heat is gathered and cannot be dissipated is formed, and the components with larger heat productivity are easily damaged. The utility model discloses compare in the electrical apparatus box of many independent cavities, built-in fan can form the inside air of first cavity and second cavity circulation wind channel air current, circulates cooling, whole cooling to every cavity, has just so eliminated the condition of heat collection, has reduced the inside temperature of electrical apparatus box. Therefore, compared with a plurality of electric appliance boxes in the prior art, the electric appliance box of the utility model has unexpected technical effects.

It should be noted that, the electrical apparatus box that this embodiment provided can select totally enclosed electrical apparatus box, and inside circulation wind channel can accomplish the air current circulation under the effect of fan, can effectively utilize cooling structure and built-in wind regime, forms high-efficient heat dissipation wind channel, plays and carries out quick inner loop cooling purpose. Certainly, a non-sealed electrical box can be selected, air outside the non-sealed electrical box can participate in airflow circulation, but a rapid cooling effect can also be achieved, and the problem of heat collection can also be solved. The ventilation structure can be a ventilation pipeline, a ventilation gap (such as an annular gap between the partition plate and the inner wall of the shell), a ventilation hole with a conventional shape and the like, and can also be a part for completing ventilation and the like. In other embodiments, not shown, the ventilation structure comprises ventilation pipes, which are respectively connected to the first chamber 11 and the second chamber 12, and the ventilation pipes may be formed directly by ventilation pipes or by the inside of the housing.

Referring to fig. 2 and 3, the electrical box further includes a first mounting plate 50, the first mounting plate 50 is disposed inside the housing 10, the first mounting plate 50 divides the inside of the housing 10 into a first chamber 11 and a second chamber 12, a vent hole is disposed on the first mounting plate 50, and the vent structure includes the vent hole disposed on the first mounting plate. The first mounting plate 50 not only has the function of separating the chambers, but also needs to be provided with vent holes to achieve the function of air flow circulation, and meanwhile, the first mounting plate 50 can be used for mounting a plurality of components, namely, the first mounting plate 50 has the function of multiple purposes. The shape and the installation of first mounting panel 50 can be set for according to the inside overall arrangement of electrical apparatus box, and the shape of first mounting panel 50 is not only limited to the flat structure, and other shapes are no longer repeated.

The fan 40 is disposed on the first mounting plate 50, and an air outlet direction of the fan 40 faces the component 20 located in the second chamber 12. Referring to fig. 2, when the fan 40 is oriented at an angle of ± 45 °, the airflow blown by the fan can be blown to the surface of the component 20, and the flowing smoothness of the airflow can be ensured, and this angle is the best airflow effect in this embodiment. In the present embodiment, the fan 40 is directed toward the compressor drive plate 21, but other components having a large heat generation amount may be selected.

In order to form a circulation duct with better circulation route, the ventilation holes comprise a first through hole 61 and a second through hole 62, the first through hole 61 is arranged at the return air inlet of the fan 40, and the second through hole 62 is arranged at the air outlet of the fan 40. The air flow blown by the fan 40 can enter the first chamber through the second through hole 62 and then return to the second chamber from the first through hole 61, and the returned air flow is just at the air return opening of the fan, so that the air flow of the circulating air duct is smoother, and the cooling effect is better.

The component 20 includes a first component located in the second chamber 12, the first component is arranged on the first mounting plate 50 in a penetrating manner, the cooling structure 30 is a refrigerant heat exchanger, the refrigerant heat exchanger is fixed on the first mounting plate 50, and the refrigerant heat exchanger is abutted against the first component and performs heat exchange. First component can be for giving out heat great components and parts, and first component is put in the second cavity, not only can cool down through the air current in circulation wind channel, and the fan also can blow away first component surface heat. Simultaneously, refrigerant heat exchanger and first component butt carry out the heat exchange to it (cooling promptly), and the great first component of calorific capacity utilizes three kinds of heat dissipation ways to dispel the heat like this, has solved the problem of heat collection effectively, can carry out the fastest cooling to components and parts.

In this embodiment, the first component having a large heat generation amount includes: the fan driving device comprises a compressor driving plate 21 and a fan driving plate 22, wherein the compressor driving plate 21 is arranged on a first mounting plate 50 in a penetrating mode, and the compressor driving plate 21 is located in a second cavity 12; the fan drive plate 22 is mounted through the first mounting plate 50 with the fan drive plate 22 located within the second chamber 12.

The number of the refrigerant heat exchangers is multiple and the refrigerant heat exchangers are fixed on the first mounting plate 50; at least one refrigerant heat exchanger is abutted against the compressor driving plate 21 and performs heat exchange; at least one refrigerant heat exchanger is abutted against the fan driving plate 22 and performs heat exchange. The number of the refrigerant heat exchangers is mainly determined according to the areas of the compressor drive plate 21 and the fan drive plate 22, and the refrigerant heat exchanger with a large area is directly used in the embodiment, so that one refrigerant heat exchanger can correspond to one compressor drive plate 21 or one fan drive plate 22.

As shown in fig. 4 to 6, the refrigerant heat exchanger includes a first pressing plate 31, a second pressing plate 32, and a refrigerant pipe 33, wherein the first pressing plate 31 is connected to a heat dissipating fin 31a; the second pressing plate 32 is fixedly connected to the first mounting plate 50, and the second pressing plate 32 is used for abutting against the first component; the first pressing plate 31 is connected with the second pressing plate 32; the refrigerant pipe 33 is inserted between the first pressure plate 31 and the second pressure plate 32.

The heat radiating fins 31a face the inside of the first chamber, the second pressure plate 32 is in abutting contact with the first component (the compressor drive plate 21 and the fan drive plate 22), and fig. 6 shows a structure in which the second pressure plate 32 is in abutting contact with the compressor drive plate 21. The heat of the compressor driving plate 21 is transferred to the second pressing plate 32, and the refrigerant pipe directly exchanges heat through the second pressing plate. The refrigerant pipe exchanges heat with the first pressing plate and the radiating fins 31a, and the radiating fins 31a can be changed into low-temperature fins, so that the radiating of the second pressing plate can be realized, and the temperature of components in the first cavity can be reduced. The first and second platens 31, 32 are in abutting engagement and are connected, and in this embodiment have abutting faces that are in engagement.

Preferably, referring to fig. 6, the first pressing plate 31 is provided with a first groove 311, the second pressing plate 32 is provided with a second groove 321, the first groove 311 and the second groove 321 define a mounting hole for passing through the refrigerant pipe 33, and the refrigerant pipe 33 is inserted into the mounting hole. The mounting hole not only can fix refrigerant pipe 33, makes things convenient for the refrigerant pipe to walk the pipe, can also laminate with the refrigerant pipe, improves the heat exchange efficiency between refrigerant pipe and first clamp plate and the second clamp plate. The refrigerant pipe penetrates out of the electric appliance box from the bottom of the electric appliance box and is sealed by a rubber ring, and the refrigerant pipe can be connected into a low-temperature loop of an air conditioning system.

The component 20 comprises a filter plate 23 and a reactor 24, wherein the filter plate 23 is arranged in the first chamber 11; the reactor 24 is mounted in the first chamber 11, and the specific structural arrangement is shown in fig. 3 and 4. The refrigerant pipe is directly cooled by heating elements such as a reactor and the like.

Referring to fig. 3, the space at the lower right of the housing in fig. 3 is a third chamber, and a wiring board and the like are arranged in the third chamber; the third cavity is not directly communicated with the first cavity and the second cavity, and is provided with a thread passing rubber ring seal only used for passing threads.

When the air conditioning unit operates and starts, when the internal temperature of the sealed electric appliance box is lower than a certain temperature, the fan is not started, and only the built-in refrigerant heat exchanger is used for cooling, so that the internal temperature of the electric appliance box is conducted to the outside of the electric appliance box. When the internal temperature of the electric appliance box is higher than a certain temperature, the fan is started; as shown in fig. 7, three wind field inner circulations are formed in the wind field inside the electric appliance box.

A first circulating wind field: and when the fan is started, airflow is blown out horizontally from the fan air outlet, passes through the compressor drive plate and touches the inner wall of the electrical box, and then part of the airflow rises to the top of the electrical box, passes through the compressor drive plate and the fan drive plate and finally returns to the air return opening of the fan.

And (3) circulating wind field two: when the fan air-out, the air current is earlier through the compressor drive plate, after touchhing the electrical apparatus box inner wall, get into first cavity through the second through-hole, and through the refrigerant heat exchanger, get back to first through-hole in cooling of refrigerant heat exchanger department, get back to the return air inlet department of fan through first through-hole, make the wind field circulation of first cavity and second cavity, simultaneously, be worth emphasizing, inside air is through circulating behind the wind field two, through first cavity cooling and heat absorption, make the inside temperature of electrical apparatus box continuously reduce.

And (3) circulating wind field III: when the fan blows air, a part of the air flows onto the bent wall (the partition plate of the third chamber), and because the first chamber is communicated with the second chamber, a part of the air flow enters the first chamber and then passes through the filter plate, forms a swirling flow, passes through the electric reactor and then returns to the air return opening of the fan through the first through hole.

The utility model discloses still provide an embodiment not shown in the figure, provide an electrical apparatus box, the electrical apparatus box's of this embodiment basic structure is the same basically with the structure of above-mentioned embodiment, and the difference only lies in the concrete structure of cooling structure, and in this embodiment, the cooling structure is the evaporation zone of heat pipe, and the condensation zone setting of heat pipe is in the outside of electrical apparatus box, and the evaporation zone of heat pipe can take away the heat in order to realize the heat absorption cooling.

The utility model discloses still provide another embodiment not shown in the figure, provide an electrical apparatus box, the electrical apparatus box's of this embodiment basic structure is the same basically with the structure of above-mentioned embodiment, and the difference only lies in the concrete structure of cooling structure, and the cooling structure is the semiconductor refrigerator. The semiconductor refrigerator has the characteristics of no noise, no vibration, no need of refrigerant, small volume, light weight and the like, and has the advantages of reliable work, simple and convenient operation and easy cold quantity regulation. But its refrigeration coefficient is smaller, and its power consumption is relatively larger, so that it is mainly used in the place with small refrigeration consumption and small floor space.

The utility model also provides an embodiment of air conditioning unit, including the electrical apparatus box of above-mentioned embodiment.

The air conditioning unit effectively solves the problem of heat collection inside the sealed electric appliance box, the internal circulating air duct can complete air flow circulation under the action of the fan, a refrigerant heat exchanger and a built-in air source can be effectively utilized, a high-efficiency heat dissipation air duct is formed, and the purpose of rapid internal circulation cooling is achieved.

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 example embodiments according to the present application. As used herein, the singular forms "a", "an", and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the accompanying drawings 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 the preferred embodiment of the present invention. It should be noted that, for a person skilled in the art, several modifications and decorations can be made without departing from the basic principle of the present invention, and these modifications and decorations are also considered to be within the scope of the present invention.

Claims (14)

1. An electrical box, comprising:

the device comprises a shell (10), wherein a first chamber (11) and a second chamber (12) are separated in the shell (10), and the first chamber (11) and the second chamber (12) are communicated through a ventilation structure;

components (20) respectively mounted in the first chamber (11) and the second chamber (12);

a cooling structure (30) arranged inside the first chamber (11);

a fan (40) disposed within the second chamber (12); under the action of the fan (40), the first chamber (11), the ventilation structure and the second chamber (12) form a circulating air duct.

2. The appliance box of claim 1, further comprising:

a first mounting plate (50), first mounting plate (50) set up inside casing (10), first mounting plate (50) will casing (10) internal partitioning is first cavity (11) and second cavity (12), the ventilation structure is including setting up ventilation hole on first mounting plate (50).

3. The appliance cartridge of claim 2,

the fan (40) is arranged on the first mounting plate (50), and the air outlet direction of the fan (40) faces to the component (20) located in the second chamber (12).

4. The appliance box according to claim 2 or 3,

the ventilation hole comprises a first through hole (61) and a second through hole (62), the first through hole (61) is arranged at an air return opening of the fan (40), and the second through hole (62) is located at an air outlet of the fan (40).

5. The appliance cartridge of claim 2,

the component (20) comprises a first component positioned in the second chamber (12), and the first component is arranged on the first mounting plate (50) in a penetrating way;

the cooling structure (30) is a refrigerant heat exchanger which is fixed on the first mounting plate (50), and the refrigerant heat exchanger is abutted against the first component and performs heat exchange.

6. The appliance cartridge of claim 5, wherein the first component comprises:

a compressor drive plate (21), the compressor drive plate (21) being disposed through the first mounting plate (50), the compressor drive plate (21) being located within the second chamber (12);

the fan driving plate (22), the fan driving plate (22) wears to establish on first mounting panel (50), fan driving plate (22) are located in second chamber (12).

7. The appliance cartridge of claim 6,

the number of the refrigerant heat exchangers is multiple and the refrigerant heat exchangers are fixed on the first mounting plate (50);

at least one refrigerant heat exchanger is abutted against the compressor driving plate (21) and performs heat exchange;

and at least one refrigerant heat exchanger is abutted against the fan driving plate (22) and performs heat exchange.

8. The electrical box of claim 5, wherein the refrigerant heat exchanger comprises:

the first pressure plate (31), the first pressure plate (31) is connected with a radiating fin (31 a);

a second pressure plate (32), the second pressure plate (32) being fixedly connected to the first mounting plate (50), the second pressure plate (32) being adapted to abut the first component; the first pressing plate (31) is connected with the second pressing plate (32);

and the refrigerant pipe (33) is arranged between the first pressing plate (31) and the second pressing plate (32) in a penetrating way.

9. The electrical box according to claim 8, wherein the first pressing plate (31) is provided with a first groove (311), the second pressing plate (32) is provided with a second groove (321), the first groove (311) and the second groove (321) enclose a mounting hole for passing through the refrigerant pipe (33), and the refrigerant pipe (33) is arranged in the mounting hole in a penetrating manner.

10. The electrical box according to claim 1, characterized in that the component (20) comprises:

a filter plate (23) mounted within the first chamber (11);

a reactor (24) mounted within the first chamber (11).

11. The electrical box according to claim 1, characterized in that said ventilation structure comprises a ventilation duct communicating respectively with said first chamber (11) and said second chamber (12).

12. The appliance box of claim 1,

the cooling structure (30) is an evaporation section of the heat pipe.

13. The appliance cartridge of claim 1,

the cooling structure (30) is a semiconductor refrigerator.

14. Air conditioning assembly characterized in that it comprises an electrical box according to any one of claims 1 to 13.

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