CN219514465U

CN219514465U - Electrical box and air conditioner

Info

Publication number: CN219514465U
Application number: CN202223357886.4U
Authority: CN
Inventors: 吴梅彬; 袁国炉; 周琪; 张红梅; 李子峰
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2022-12-12
Filing date: 2022-12-12
Publication date: 2023-08-11
Anticipated expiration: 2032-12-12

Abstract

The utility model relates to an electric appliance box and an air conditioner, and relates to the technical field of air conditioners. The electric box comprises a shell, a control assembly, a flow guiding assembly and a heat radiating assembly, wherein a first cavity, a second cavity and a third cavity are formed in the shell, and the second cavity is communicated with the first cavity and the third cavity respectively; the control component is arranged in the first cavity; the flow guide assembly is arranged between the second cavity and the third cavity, and the second cavity is communicated with the third cavity through the flow guide assembly; the heat dissipation component is arranged in the third cavity; the heat dissipation assembly is used for cooling the control assembly, and the heat dissipation assembly can drain condensed water on the heat dissipation assembly to the outer space of the shell in the cooling process. The technical scheme disclosed by the utility model can solve the problem that condensed water is easy to generate due to the built-in cold source in the traditional electric box, so that the electronic components are short-circuited.

Description

Electrical box and air conditioner

Technical Field

The utility model relates to the technical field of air conditioners, in particular to an electric box and an air conditioner.

Background

An air conditioner is a device for adjusting and controlling parameters such as temperature, humidity, flow rate and the like of air in the environment of a building or structure by manual means. The electric box is an important component of the air conditioning unit and is also a control center of the air conditioning unit, and the reliability problem directly affects the normal use of the air conditioning unit.

The electrical apparatus box includes box body and lid, is provided with circuit board and electronic components in the box body, and the calorific capacity of circuit board and electronic components is big, in order to improve radiating efficiency, places the cold source in the electrical apparatus box generally, improves radiating efficiency through radiation heat dissipation.

However, in the working process, condensed water is easy to generate in the built-in cold source in the electric box, and because the electric box is generally of a sealing structure, the condensed water can gather in the electric box to easily cause short circuit of electronic components, so that potential safety hazards are caused.

Disclosure of Invention

The embodiment of the utility model provides an electric box and an air conditioner, which can solve the problem that condensed water is easy to generate due to a built-in cold source in the existing electric box, so that electronic components are short-circuited.

In a first aspect, an embodiment of the present utility model provides an electrical box, including:

the shell is internally provided with a first cavity, a second cavity and a third cavity, and the second cavity is respectively communicated with the first cavity and the third cavity;

a control assembly disposed within the first cavity;

the flow guide assembly is arranged between the second cavity and the third cavity, and the second cavity is communicated with the third cavity through the flow guide assembly; and

the heat dissipation assembly is arranged in the third cavity;

the heat dissipation assembly is used for cooling the control assembly, and the heat dissipation assembly can drain condensed water on the heat dissipation assembly to the outer space of the shell in the cooling process.

In one embodiment, the housing comprises:

a main body portion;

a side protrusion provided on a side wall of the main body portion and communicating with the main body portion, the side protrusion having a window groove on a side thereof remote from the main body portion;

a heat dissipation portion provided on a side of the side protruding portion away from the main body portion, the heat dissipation portion and the side protruding portion together forming the third cavity;

the heat dissipation part is provided with a through groove communicated with the third cavity, and the heat dissipation component is arranged in the third cavity in a penetrating way through the through groove and is arranged opposite to the windowing groove.

In one embodiment, the heat dissipation assembly includes:

the cold source heat dissipation piece is arranged in the third cavity;

a sealing member located in and cooperating with the through groove, the sealing member being adapted to support the cold source member;

wherein, be provided with on the sealing member in the direction of height Z and link up at least one wash port of sealing member.

In one embodiment, the drain hole has a pore diameter of less than 1mm.

In one embodiment, the cold source heat dissipation part is provided with an inlet pipe and an outlet pipe on one side close to the sealing part, the sealing part is provided with a first through hole and a second through hole for the inlet pipe and the outlet pipe to pass through respectively, the first through hole is matched with the inlet pipe, and the second through hole is matched with the outlet pipe.

In one embodiment, the through groove is positioned on the bottom surface of the heat dissipation part, and the sealing element is parallel to the width direction; or (b)

The through groove is positioned on the side face of the heat dissipation part, and the sealing piece is parallel to the height direction Z.

In one embodiment, the flow directing assembly comprises:

the guide part is arranged at the windowing groove, the guide part is abutted with one side, away from the main body part, of the side convex part, and at least one guide groove is arranged on the guide part;

one end of the bending part is connected with the flow guiding part, and the bending part is vertical to the flow guiding part;

the device comprises a flow guiding part and a flow guiding groove, wherein the flow guiding part is provided with at least one flow guiding piece, the at least one flow guiding piece corresponds to the at least one flow guiding groove one by one, the flow guiding piece is connected with the flow guiding part to form a flow guiding cavity, and the flow guiding groove is positioned in the corresponding flow guiding cavity.

In one embodiment, the guide element has a guide bevel, the distance of which from the guide groove decreases gradually from top to bottom in the height direction Z.

In one embodiment, the projection of the fenestration slot is located in the projection of the deflector and the projections of the at least one deflector are both located in the projection of the fenestration slot on a plane perpendicular to the length direction X.

In one embodiment, the electrical box comprises:

the first separating piece is connected with the main body part, the first separating piece, the main body part and the bending part jointly form a fourth cavity, and the fourth cavity is isolated from the first cavity, the second cavity and the third cavity;

a second divider connected to the body portion, the second divider, the first divider, and the body portion collectively forming the first cavity;

wherein the first separator, the second separator, the side protrusions, and the bent portion collectively form the second cavity.

In one embodiment, the electrical box comprises:

a fan connected to the second partition, the fan being located within the first cavity;

a heat sink coupled to the second partition, the heat sink being located within the second cavity;

the control assembly is connected with the second partition piece, and is abutted with the radiator for heat exchange.

In a second aspect, an embodiment of the present utility model provides an air conditioner, including an electrical box as described above.

Compared with the prior art, the embodiment of the utility model has the advantages that the condensed water in the cooling process can be discharged out of the electric box by arranging the heat dissipation assembly, so that the condensed water is prevented from flowing in the electric box or penetrating into the control assembly, the safety performance of the product is improved, and the problem that the existing condensed water is easy to cause short circuit of electronic components is solved. Meanwhile, the control assembly is radiated by the heat radiating assembly, so that the heat radiating efficiency is improved, the electric appliance box is cooled down quickly, the first cavity is communicated with the third cavity, the heat radiating assembly can radiate into the first cavity as a cold source, the heat conducting efficiency is improved, and the temperature rise in the electric appliance box is effectively reduced. The heat dissipation assembly comprises a cold source heat dissipation part and a sealing part, the cold source heat dissipation part is used as a cold source for heat dissipation and temperature reduction, and condensed water on the cold source heat dissipation part is discharged to the outer space of the shell through a drain hole arranged on the sealing part, so that the condensed water is prevented from damaging electronic components in the electric box.

Drawings

The utility model will be described in more detail hereinafter on the basis of embodiments and with reference to the accompanying drawings.

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

FIG. 2 is a schematic perspective view of the electrical box provided in the embodiment of FIG. 1, partially in section;

fig. 3 is a cross-sectional view of the electrical box provided in the embodiment of fig. 1 in a front view;

FIG. 4 is a schematic view of the housing, heat dissipating assembly, and heat conducting assembly provided by the embodiment of FIG. 1;

FIG. 5 is an exploded view of the housing, heat dissipating assembly, and heat conducting assembly provided by the embodiment of FIG. 1;

FIG. 6 is an enlarged view of portion A of FIG. 5;

fig. 7 is an enlarged view of a portion B in fig. 5.

Reference numerals:

10. a housing; 110. a first cavity; 120. a second cavity; 130. a third cavity; 140. a main body portion; 150. a side protrusion; 1501. a window opening groove; 160. a heat dissipation part; 1601. a through groove; 170. a fourth cavity; 20. a control assembly; 210. a compressor driving plate; 220. a fan driving plate; 30. a flow guiding assembly; 310. a flow guiding part; 3101. a diversion trench; 320. a bending part; 330. a flow guide; 3301. a diversion inclined plane; 40. a heat dissipation assembly; 410. a cold source heat sink; 4101. an inlet pipe; 420. a seal; 4201. a drain hole; 50. a first partition; 60. a second separator; 70. a fan; 80. a heat sink.

Detailed Description

The utility model will be further described with reference to the accompanying drawings.

The electric appliance box comprises a box body and a box cover, wherein a circuit board and electronic components are arranged in the box body, and various cables for controlling, supplying power and the like are concentrated into the box body through wire passing holes in the box body and then are connected with wiring terminals on the circuit board. The circuit board in the electrical apparatus box includes compressor drive plate, fan drive plate, realizes the variable frequency power output to compressor, fan through drive circuit, and wherein, power module on the circuit board just can ensure its normal operating because of high current density and high computational performance, and calorific capacity is big, need effectively dispel the heat to circuit board and electronic components. In order to improve the heat dissipation efficiency, a cold source, such as a copper tube, a blow-up plate, a micro-channel, etc., is generally placed in the electrical box, and the heat dissipation efficiency is improved by radiating heat.

Although the built-in cold source has obvious effect of reducing the temperature in the electric box, in the working process, the built-in cold source in the electric box is easy to generate condensed water, and because the electric box is generally of a sealing structure, the condensed water can gather in the electric box to easily cause short circuit of electronic components, thereby causing potential safety hazard.

In order to solve the above-mentioned technical problems, at least one embodiment of the present utility model provides an electrical box, which includes a housing 10, a control assembly 20, a flow guiding assembly 30 and a heat dissipating assembly 40, wherein a first cavity 110, a second cavity 120 and a third cavity 130 are disposed in the housing 10, and the second cavity 120 is respectively communicated with the first cavity 110 and the third cavity 130; the control assembly 20 is disposed in the first cavity 110; the flow guiding assembly 30 is arranged between the second cavity 120 and the third cavity 130, and the second cavity 120 and the third cavity 130 are communicated through the flow guiding assembly 30; the heat dissipation assembly 40 is disposed in the third cavity 130; the heat dissipation assembly 40 is used for cooling the control assembly 20, and the heat dissipation assembly 40 can drain condensed water on the heat dissipation assembly 40 to an external space of the housing 10 during cooling.

Therefore, the condensed water in the cooling process can be discharged out of the shell 10 through the heat dissipation assembly 40, so that the condensed water is prevented from flowing in the shell 10 or penetrating into the control assembly 20, the safety performance of the product is improved, and the problem that the existing condensed water is easy to cause short circuit of electronic components is solved. Meanwhile, the heat dissipation assembly 40 is arranged to dissipate heat of the control assembly 20, so that the heat dissipation efficiency is improved, the electric appliance box is cooled down rapidly, the first cavity 110 is communicated with the third cavity 130, the heat dissipation assembly 40 can radiate into the first cavity 110 as a cold source, the heat conduction efficiency is improved, and the temperature rise in the electric appliance box is effectively reduced.

As shown in fig. 1 to 3, the electrical box comprises a housing 10, a control assembly 20, a diversion assembly 30 and a heat dissipation assembly 40; the housing 10 has a first cavity 110, a second cavity 120 and a third cavity 130 therein, and the second cavity 120 is respectively communicated with the first cavity 110 and the third cavity 130. It should be noted that the first cavity 110 and the third cavity 130 are located at two sides of the second cavity 120, respectively.

The control assembly 20 is disposed within the first cavity 110. It should be noted that, the control assembly 20 includes a compressor driving board 210, a fan driving board 220, and electronic components respectively mounted on the compressor driving board 210 and the fan driving board 220; the heat generated by the control assembly 20 is large, and the control assembly 20 needs to be radiated in time. For example, the IPM module (Intelligent Power Module), i.e., the smart power module, is mounted on the compressor drive plate 210.

The flow guiding assembly 30 is disposed between the second cavity 120 and the third cavity 130, and the second cavity 120 and the third cavity 130 are communicated through the flow guiding assembly 30.

The heat dissipation assembly 40 is disposed in the third cavity 130; the heat dissipation assembly 40 is used for cooling the control assembly 20, and the heat dissipation assembly 40 can drain condensed water on the heat dissipation assembly 40 to an external space of the housing 10 during cooling. It should be noted that, when the temperature of the heat dissipating assembly 40 is low and the temperature in the electrical box is high, condensed water is easily generated on the surface of the heat dissipating assembly 40. The condensed water in the cooling process can be discharged out of the electric box through the heat dissipation assembly 40, so that the condensed water is prevented from flowing in the shell 10 or penetrating the control assembly 20, and the heat dissipation is performed on the control assembly 20 through the heat dissipation assembly 40, so that the heat dissipation efficiency is improved, and the electric box is enabled to be cooled rapidly.

As shown in fig. 1, in some embodiments, the housing 10 includes a main body portion 140, side protrusions 150, and a heat sink portion 160; the side protruding portion 150 is provided on a side wall of the main body portion 140 and communicates with the main body portion 140, and a window groove 1501 is provided on a side of the side protruding portion 150 away from the main body portion 140. It should be noted that, the side protruding portion 150 may be integrally formed with the main body portion 140 by a mold to achieve connection and communication. The height of the main body 140 is greater than the height of the side protruding portion 150, and the height of the side protruding portion 150 is greater than the height of the heat dissipating portion 160.

The heat dissipation portion 160 is disposed on a side of the side protruding portion 150 away from the main body portion 140, and the heat dissipation portion 160 and the side protruding portion 150 together form the third cavity 130. It should be noted that, the heat dissipation portion 160 may be integrally formed with the side protruding portion 150 and the main body portion 140, so as to achieve connection and communication.

As shown in fig. 2 and 5, the heat dissipation portion 160 is provided with a through groove 1601 that communicates with the third cavity 130, the heat dissipation assembly 40 is disposed in the third cavity 130 through the through groove 1601, and the heat dissipation assembly 40 is disposed opposite to the window groove 1501. The third cavity 130 accommodates the heat dissipation component 40, and the heat dissipation component 40 is arranged opposite to the window slot 1501 to increase the heat dissipation area; in addition, the heat dissipation assembly 40 is conveniently detached and installed through the through groove 1601.

As shown in fig. 2, in some embodiments, the heat dissipation assembly 40 includes a heat sink 410 and a sealing member 420, and the heat sink 410 is disposed in the third cavity 130. It should be noted that, the cold source heat dissipation part 410 includes two heat dissipation plates disposed opposite to each other and a refrigerant tube installed between the two heat dissipation plates, and the refrigerant tube may be spirally disposed to increase the volume of the refrigerant and improve the heat dissipation efficiency, and the refrigerant in the refrigerant tube may be cold water or other refrigerants, which is not limited in application. Note that, the heat sink 410 may be in contact with a side of the heat sink 160 away from the side protruding portion 150.

And a sealing member 420 positioned in the through groove 1601 and cooperating with the through groove 1601, wherein the sealing member 420 supports the heat sink. The sealing member 420 may be a rubber sealing member 420. It should be further noted that, the sealing member 420 includes a first sealing section and a second sealing section, the dimension of the first sealing section in the length direction X is smaller than the dimension of the second sealing section in the length direction X, so as to form a step surface, where the first sealing section is located in the through groove 1601, and the step surface abuts against the bottom surface of the heat dissipating portion 160. It should be noted that, the dimension of the third cavity 130 in the length direction X is L1, and the dimension of the cold source heat sink 410 in the length direction X is L2, where L1 > L2, so as to provide a space for the condensed water flowing on the cold source heat sink 410, so that the condensed water can flow along the cold source heat sink 410 to the sealing member 420 and then be discharged. As shown in fig. 2, the longitudinal direction X is the longitudinal direction of the housing, the width direction Y is the width direction of the housing, the height direction Z is the height direction of the housing, and the longitudinal direction X, the width direction Y, and the height direction Z are perpendicular to each other.

The sealing member 420 is matched with the through groove 1601 to seal the through groove 1601, so that low temperature provided by the cold source heat sink 410 is prevented from being transferred into the external space of the casing 10 through the through groove 1601, thereby causing a decrease in heat dissipation efficiency.

As shown in fig. 5 and 6, at least one drain hole 4201 penetrating the seal 420 in the height direction Z is provided in the seal 420. The condensed water on the cold source heat sink 410 is discharged to the external space of the case 10 through the drain hole 4201, thereby preventing the condensed water from damaging the control assembly 20 in the case 10. Meanwhile, by providing the drain hole 4201 on the seal 420, the outflow of condensed water through the gap between the seal 420 and the heat sink 160 can be prevented.

In some embodiments, the drain 4201 has a pore size of less than 1mm. By defining the aperture of the drain hole 4201, the low temperature provided by the cold source heat sink 410 is transferred into the external space of the case 10 through the drain hole 4201 to ensure heat dissipation efficiency while ensuring drainage.

As shown in fig. 5, in some embodiments, the heat sink 410 has an inlet pipe 4101 and an outlet pipe on a side near the sealing member 420, and the sealing member 420 is provided with a first via hole and a second via hole for the inlet pipe 4101 and the outlet pipe to pass through, respectively, the first via hole is matched with the inlet pipe 4101, and the second via hole is matched with the outlet pipe. The inlet pipe 4101 is a refrigerant inlet of the cold source heat sink 410, the outlet pipe is a refrigerant outlet of the cold source heat sink 410, and the inlet pipe 4101 and the outlet pipe are respectively connected to the refrigerant pipes of the cold source heat sink 410. The heat dissipation and the temperature reduction are performed by using the heat sink 410 as a heat sink.

In some embodiments, the through groove 1601 is located on the bottom surface of the heat dissipating portion 160, and the sealing member 420 is parallel to the width direction X; or grooves, are located on the sides of the heat sink 160, and the sealing member 420 is parallel to the height direction Z. For example, as shown in fig. 5, the through groove 1601 is located on the bottom surface of the heat sink 160, the seal 420 is parallel to the width direction Y, and after the seal 420 is removed, the heat sink 410 can be removed from the through groove 1601 on the bottom surface of the heat sink 160.

As shown in fig. 5, in some embodiments, the baffle assembly 30 includes a baffle portion 310 and a bend portion 320; the guiding part 310 is disposed at the window slot 1501, the guiding part 310 is abutted against a side of the side protruding part 150 away from the main body 140, and at least one guiding slot 3101 is disposed on the guiding part 310. It should be noted that the flow guiding portion 310 and/or the bending portion 320 may be connected to the housing 10. It should be noted that, a plurality of flow guiding grooves 3101 may be provided on the flow guiding portion 310, for example, as shown in fig. 5, the flow guiding grooves 3101 are arranged in a plurality of rows and a plurality of columns. It should be noted that, on a plane perpendicular to the longitudinal direction X, the projection of the window 1501 is located within the projection of the heat sink 410. By arranging the diversion trench 3101, the third cavity 130 is communicated with the second cavity 120, so that the low temperature provided by the cold source heat dissipation member 410 can directly act on the heating element, and the temperature rise of the electrical element is effectively reduced.

One end of the bending part 320 is connected with the guiding part 310, and the bending part 320 is perpendicular to the guiding part 310. It should be noted that the bending portion 320 may be used as a bottom surface of the housing 10 to close the housing 10. It should be noted that, the bottom of the housing 10 is provided with a supporting portion bent toward the inside of the housing 10, and the supporting portion abuts against the bending portion 320, so that the installation of the flow guiding assembly 30 can be facilitated.

As shown in fig. 7, at least one flow guiding element 330 is disposed on the flow guiding portion 310, at least one flow guiding element 330 corresponds to at least one flow guiding groove 3101 one by one, and the flow guiding element 330 is connected with the flow guiding portion 310 to form a flow guiding cavity, and the flow guiding groove 3101 is located in the corresponding flow guiding cavity. By arranging the diversion cavity to conduct and buffer the condensed water, the condensed water falling onto the diversion part 310 or the condensed water generated on the diversion part 310 is prevented from being acted on the control assembly 20 through the diversion trench 3101.

As shown in fig. 7, in some embodiments, the deflector 330 has a deflector slope 3301, and the distance of the deflector slope 3301 from the deflector trough 3101 decreases gradually from top to bottom along the height direction Z. The condensed water is guided into the guide groove 3101 by the guide slope 3301, flows into the guide groove 3101 along the guide slope 3301, flows into the drain hole 4201 along the guide portion 310, and is finally discharged to the outside of the electrical box.

In some embodiments, the projection of fenestration slots 1501 is located within the projection of flow guide 330 and the projection of at least one flow guide 3101 is located within the projection of fenestration slots 1501 in a plane perpendicular to the length direction X. The projected shape of the window groove 1501 may be rectangular or the projected shape of the flow guide groove 3101 may be rectangular on a plane perpendicular to the longitudinal direction X. The projection through the window groove 1501 is located in the projection of the flow guiding member 330, so that the flow guiding member 330 is used as a low temperature outlet of the cold source heat dissipation member 410, a gap is avoided between the window groove 1501 and the flow guiding member 330, and condensate water generated in the gap or condensate water on the cold source heat dissipation member 410 is prevented from flowing into the electronic component through the gap, so that the electronic component is prevented from being damaged. The projections of the flow guide grooves 3101 are positioned in the projections of the window grooves 1501, so that the condensed water flows into the flow guide grooves 3101 along the flow guide inclined plane 3301, and then flows into the drain holes 4201 through the window grooves 1501, and finally is discharged to the outside of the electrical box.

As shown in fig. 2 and 3, in some embodiments, the electrical box includes a first separator 50 and a second separator 60;

the first separator 50 is connected to the main body 140, and the first separator 50, the main body 140 and the bending portion 320 together form a fourth cavity 170, where the fourth cavity 170 is isolated from the first cavity 110, the second cavity 120 and the third cavity 130. The first separator 50 is provided with a wire passing hole for passing a wire, and a wire passing rubber ring for sealing is disposed in the wire passing hole. It should be further noted that a wiring board is disposed in the fourth cavity 170, and the wiring board is mounted on the first partition 50.

The second partition 60 is connected to the main body 140, and the second partition 60, the first partition 50, and the main body 140 together form the first chamber 110. It should be noted that, the first cavity 110 is located above the second cavity 120, and a space is provided between the bottom of the second partition 60 and the top of the first partition 50, and the space enables the first cavity 110 to communicate with the second cavity 120. It should also be noted that vents may be provided in the second partition 60 to enhance the flow of air within the housing 10. It should be further noted that the first cavity 110 is located above the fourth cavity 170.

Wherein the first separator 50, the second separator 60, the side protrusion 150, and the bending portion 320 together form the second cavity 120. The second chamber 120 is provided therein with a heat generating component such as a filter plate and a reactor, and the heat generating component such as a filter plate and a reactor is mounted on the first separator 50.

As shown in fig. 2, in some embodiments, the electrical box includes a fan 70 and a heat sink 80; the fan 70 is connected to the second partition 60, and the fan 70 is located in the first chamber 110. The air flow between the cavities in the housing 10 is enhanced by the fan 70 to form a circulation duct in the electrical box, avoiding heat accumulation in each cavity; meanwhile, the fan 70 can blow away the heat on the control assembly 20, and the air cooling heat dissipation mode is utilized to rapidly dissipate the heat of the control assembly 20, so that the heat accumulation problem in the electrical box is effectively solved, and the cold source radiation efficiency of the heat dissipation assembly 40 is quickened.

And a heat sink 80 connected to the second partition 60, the heat sink 80 being located in the second cavity 120. Note that, the radiator 80 may be a refrigerant heat exchanger, and the refrigerant radiator 80 is provided with a heat dissipation fin. It should be further noted that, the number of the heat sinks 80 is at least one, and the number of the heat sinks 80 is determined according to the areas of the compressor driving board 210 and the fan driving board 220 of the control assembly 20, for example, as shown in fig. 2, the heat sinks 80 are one. The heat radiator 80 is used for cooling the control assembly 20 and other electronic components in the electrical box, so that the heat radiation effect and efficiency are further improved.

The control assembly 20 is connected to the second partition 60, and the control assembly 20 abuts against the heat sink 80 for heat exchange. The control assembly 20 is abutted with the radiator 80, so that the heat exchange efficiency is improved, and the control assembly 20 is rapidly cooled by matching with the air cooling of the fan 70, so that the temperature rise in the electrical box is reduced.

The cooling process of the electrical box is as follows: the heat dissipation assembly 40 is used as a cold source and irradiates into the second cavity 120 through the diversion trench 3101, the surface temperature of the electrical components in the second cavity 120 is effectively reduced, and the environmental temperature in the second cavity 120 is reduced. The control assembly 20 in the first cavity 110 conducts heat through the heat sink 80, and the heat radiation is conducted into the second cavity 120, so that the heat is effectively dissipated through the heat dissipating assembly 40. And because the first cavity 110 is communicated with the second cavity 120, the heat dissipation component 40 can be used as a cold source to radiate into the first cavity 110, so that the surface temperature of the electrical components in the first cavity 110 is effectively reduced, and the environmental temperature in the first cavity 110 is reduced.

Because the temperature of the internal environment of the electrical box is higher and the temperature of the heat dissipation assembly 40 is lower, condensed water is easily generated on the cold source heat dissipation member 410, and when the condensed water gathers on the cold source heat dissipation member 410, the condensed water flows down along the cold source heat dissipation member 410 and is drained through the drain hole 4201 on the sealing member 420. When the condensed water on the cold source heat sink 410 drops onto the diversion assembly 30, the condensed water flows into the diversion portion 310 along the diversion slope 3301 and is discharged from the drain hole 4201 of the sealing member 420 near the side of the fourth cavity 170.

The electrical box can be internally provided with a humidity temperature sensor, the humidity temperature sensor can be electrically connected with the control assembly 20, the humidity temperature sensor is provided with a dew point temperature in advance, and when the temperature in the electrical box detected by the humidity temperature sensor is lower than the dew point temperature, the refrigerant temperature of the cold source heat dissipation part 410 is regulated and controlled so as to avoid condensate water generated on the surface of the component.

At least one embodiment of the utility model also provides an air conditioner, which comprises the electrical box according to any embodiment of the utility model, and further has all technical effects brought by the technical scheme of the embodiment.

While the utility model has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the utility model. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict. The present utility model is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.

Claims

1. An electrical box, comprising:

a control assembly disposed within the first cavity;

the heat dissipation assembly is arranged in the third cavity;

2. The electrical box of claim 1, wherein the housing comprises:

a main body portion;

3. The electrical box of claim 2, wherein the heat sink assembly comprises:

the cold source heat dissipation piece is arranged in the third cavity;

4. An electrical box according to claim 3, wherein the aperture of the drain hole is less than 1mm.

5. An electrical box according to claim 3, wherein the cold source heat dissipation member is provided with an inlet pipe and an outlet pipe on a side close to the sealing member, the sealing member is provided with a first via hole and a second via hole for the inlet pipe and the outlet pipe to pass through, the first via hole is matched with the inlet pipe, and the second via hole is matched with the outlet pipe.

6. The electrical box according to claim 3, wherein the through groove is located at the bottom surface of the heat dissipation part, and the sealing member is parallel to the width direction Y; or (b)

7. The electrical box of claim 2, wherein the flow directing assembly comprises:

8. The electrical box according to claim 7, wherein the flow guiding member has a flow guiding slope, and the distance between the flow guiding slope and the flow guiding groove is gradually reduced from top to bottom along the height direction Z.

9. The electrical box of claim 7, wherein the projection of the fenestration slot is located in the projection of the deflector and the projection of the at least one deflector is located in the projection of the fenestration slot in a plane perpendicular to the length direction X.

10. The electrical box of claim 7, wherein the electrical box comprises:

11. The electrical box of claim 10, wherein the electrical box comprises:

the control assembly is connected with the second partition piece, and is abutted with the radiator and performs heat exchange.

12. An air conditioner comprising the electrical box according to any one of claims 1 to 11.