Electrical boxes and air conditioners

Abstract

The present invention relates to an electrical box and an air conditioner, and to the technical field of air conditioners. The electrical box of the present invention includes a shell, a control component, a flow guide component, and a heat dissipation component. The shell has a first cavity, a second cavity, and a third cavity inside. The second cavity is connected to the first cavity and the third cavity respectively; the control component is arranged in the first cavity; the flow guide component is arranged between the second cavity and the third cavity, and the second cavity and the third cavity are connected through the flow guide component; the heat dissipation component is arranged in the third cavity; wherein the heat dissipation component is used to cool the control component, and the heat dissipation component can discharge the condensed water on the heat dissipation component during the cooling process to the external space of the shell. The technical solution disclosed in this application can solve the problem that the built-in cold source in the existing electrical box is prone to generate condensed water, causing short circuits in electronic components.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and in particular to an electrical appliance box and an air conditioner. Background Art

[0002] Air conditioning refers to equipment that manually regulates and controls parameters such as temperature, humidity, and flow rate within a building or structure. The electrical box is a crucial component of the air conditioning unit and serves as its control center. Reliability issues directly impact the unit's performance.

[0003] The electrical box includes a box body and a box cover. The box body is equipped with a circuit board and electronic components. The circuit board and electronic components generate a lot of heat. In order to improve the heat dissipation efficiency, a cold source is usually placed in the electrical box to improve the heat dissipation efficiency through radiation heat dissipation.

[0004] However, during operation, the built-in cold source in the electrical box is prone to produce condensation water, and since the electrical box is generally a sealed structure, the condensation water will accumulate inside the electrical box and easily cause short circuits in electronic components, posing a safety hazard. Summary of the Invention

[0005] The embodiments of the present application provide an electrical appliance box and an air conditioner, which can solve the problem that the built-in cold source in the existing electrical appliance box is prone to generate condensed water, causing short circuits in electronic components.

[0006] In a first aspect, an embodiment of the present application provides an electrical appliance box, comprising:

[0007] A housing having a first cavity, a second cavity, and a third cavity therein, wherein the second cavity is communicated with the first cavity and the third cavity respectively;

[0008] a control assembly disposed in the first cavity;

[0009] a flow guide component, which is disposed between the second cavity and the third cavity, and the second cavity and the third cavity are connected through the flow guide component; and

[0010] a heat dissipation component, which is disposed in the third cavity;

[0011] The heat dissipation component is used to cool the control component, and the heat dissipation component can discharge condensed water on the heat dissipation component during the cooling process to the external space of the shell.

[0012] In one embodiment, the housing comprises:

[0013] Main body;

[0014] a side convex portion, which is arranged on the side wall of the main body and communicates with the main body, and has a window groove on a side of the side convex portion away from the main body;

[0015] a heat dissipation portion, which is provided on a side of the side convex portion away from the main body portion, the heat dissipation portion and the side convex portion jointly forming the third cavity;

[0016] The heat dissipation portion is provided with a through slot communicating with the third cavity, the heat dissipation component is passed through the third cavity through the through slot, and the heat dissipation component is arranged opposite to the window slot.

[0017] In one embodiment, the heat dissipation component includes:

[0018] A cold source heat dissipation element, which is arranged in the third cavity;

[0019] a sealing member located in the through groove and matched with the through groove, wherein the sealing member can support the cold source member;

[0020] Wherein, the sealing member is provided with at least one drainage hole penetrating the sealing member in the height direction Z.

[0021] In one embodiment, the diameter of the drainage hole is less than 1 mm.

[0022] In one embodiment, the cold source heat dissipation element has an inlet pipe and an outlet pipe on the side close to the sealing element, and the sealing element 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 cooperates with the inlet pipe, and the second through hole cooperates with the outlet pipe.

[0023] In one embodiment, the through groove is located on the bottom surface of the heat dissipation portion, and the sealing member is parallel to the width direction; or

[0024] The through groove is located on a side surface of the heat dissipation portion, and the sealing member is parallel to the height direction Z.

[0025] In one embodiment, the flow guide assembly includes:

[0026] a guide portion, which is arranged at the window groove, the guide portion abuts against a side of the side convex portion away from the main body portion and is provided with at least one guide groove;

[0027] a bending portion, one end of which is connected to the guide portion, and the bending portion is perpendicular to the guide portion;

[0028] Wherein, at least one guide member is provided on the guide portion, the at least one guide member corresponds to the at least one guide groove one-to-one, the guide member is connected to the guide portion to form a guide cavity, and the guide groove is located in the corresponding guide cavity.

[0029] In one embodiment, the guide member has a guide slope, and the distance between the guide slope and the guide groove gradually decreases from top to bottom along the height direction Z.

[0030] In one embodiment, on a plane perpendicular to the longitudinal direction X, the projection of the window groove is located within the projection of the guide member, and the projection of the at least one guide groove is located within the projection of the window groove.

[0031] In one embodiment, the electrical box includes:

[0032] a first partition connected to the main body, wherein the first partition, the main body, and the bent portion together form a fourth cavity, and the fourth cavity is isolated from the first cavity, the second cavity, and the third cavity;

[0033] a second partition connected to the main body, wherein the second partition, the first partition and the main body together form the first cavity;

[0034] The first partition, the second partition, the side convex portion and the bent portion together form the second cavity.

[0035] In one embodiment, the electrical box includes:

[0036] a fan connected to the second partition, wherein the fan is located in the first cavity;

[0037] a radiator connected to the second partition, the radiator being located in the second cavity;

[0038] Wherein, the control component is connected to the second partition, and the control component abuts against the radiator and performs heat exchange.

[0039] In a second aspect, an embodiment of the present application provides an air conditioner, comprising the electrical box as described above.

[0040] Compared with the prior art, the advantage of the embodiments of the present application is that, by providing a heat dissipation component, the condensed water during the cooling process can be discharged to the outside of the electrical box, thereby preventing the condensed water from flowing inside the electrical box or penetrating into the control component, thereby improving the safety performance of the product and solving the problem that the existing condensed water easily causes short circuits in electronic components. At the same time, by providing a heat dissipation component to dissipate heat from the control component, the heat dissipation efficiency is improved, and the electrical box is cooled quickly. Moreover, by connecting the first cavity with the third cavity, the heat dissipation component can be used as a cold source to radiate into the first cavity, thereby improving the heat conduction efficiency and effectively reducing the temperature rise in the electrical box. Exemplarily, the heat dissipation component includes a cold source heat sink and a sealing component. The cold source heat sink is used as a cold source to dissipate heat and cool down the body. The condensed water on the cold source heat sink is discharged to the external space of the shell through the drainage holes provided on the sealing component, thereby preventing the condensed water from damaging the electronic components in the electrical box. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Hereinafter, the present invention will be described in more detail based on embodiments with reference to the accompanying drawings.

[0042] Figure 1 This is a schematic diagram of the three-dimensional structure of an electrical appliance box provided by one embodiment of the present invention;

[0043] Figure 2 yes Figure 1 A schematic diagram of the three-dimensional structure of the electrical box provided in the embodiment of FIG.

[0044] Figure 3 yes Figure 1 A cross-sectional view of the electrical box in the main viewing direction provided in the embodiment;

[0045] Figure 4 yes Figure 1 Schematic diagram of the installation of the housing, heat dissipation assembly and heat conduction assembly provided in the embodiment;

[0046] Figure 5 yes Figure 1 An exploded diagram of the housing, heat dissipation assembly, and heat conduction assembly provided in the embodiment;

[0047] Figure 6 yes Figure 5 Enlarged view of part A;

[0048] Figure 7 yes Figure 5 Magnified view of part B.

[0049] Reference numerals:

[0050] 10. Shell; 110. First cavity; 120. Second cavity; 130. Third cavity; 140. Main body; 150. Side convex portion; 1501. Window groove; 160. Heat dissipation portion; 1601. Through groove; 170. Fourth cavity; 20. Control assembly; 210. Compressor drive plate; 220. Fan drive plate; 30. Guide assembly; 310. Guide portion; 3101. Guide groove; 320. Bending portion; 330. Guide member; 3301. Guide slope; 40. Heat dissipation assembly; 410. Cold source heat dissipation member; 4101. Inlet pipe; 420. Sealing member; 4201. Drain hole; 50. First partition; 60. Second partition; 70. Fan; 80. Radiator. DETAILED DESCRIPTION

[0051] The present invention will be further described below with reference to the accompanying drawings.

[0052] Air conditioning refers to equipment that manually regulates and controls parameters such as temperature, humidity, and flow rate within a building or structure. The electrical box is a crucial component of the air conditioning unit and serves as its control center. Reliability issues directly impact the unit's performance.

[0053] The electrical box includes a box body and a box cover. The box body is equipped with a circuit board and electronic components. Various cables for control, power supply, etc. are concentrated into the box body through the wire holes on the box body and then connected to the various terminals on the circuit board. The circuit board in the electrical box includes a compressor drive board and a fan drive board. The drive circuit realizes variable frequency power output to the compressor and fan. Among them, the power module on the circuit board generates a lot of heat due to high current density and high computing performance. The circuit board and its electronic components need to be effectively cooled to ensure its normal operation. In order to improve the heat dissipation efficiency, a cold source such as a copper tube, a blown plate, a microchannel, etc. is usually placed in the electrical box to improve the heat dissipation efficiency through radiation heat dissipation.

[0054] Although the built-in cold source is effective in reducing the temperature inside the electrical box, it is easy to produce condensation water during operation. Since the electrical box is generally a sealed structure, the condensation water will accumulate inside the electrical box and easily cause short circuits in electronic components, posing a safety hazard.

[0055] In order to solve the above technical problems, at least one embodiment of the present application provides an electrical box, including a shell 10, a control component 20, a guide component 30 and a heat dissipation component 40, the shell 10 has a first cavity 110, a second cavity 120 and a third cavity 130, the second cavity 120 is respectively connected to the first cavity 110 and the third cavity 130; the control component 20 is arranged in the first cavity 110; the guide component 30 is arranged between the second cavity 120 and the third cavity 130, and the second cavity 120 and the third cavity 130 are connected through the guide component 30; the heat dissipation component 40 is arranged in the third cavity 130; wherein, the heat dissipation component 40 is used to cool the control component 20, and the heat dissipation component 40 can discharge condensed water on the heat dissipation component 40 during the cooling process to the external space of the shell 10.

[0056] As can be seen above, by providing the heat dissipation assembly 40, condensed water during the cooling process can be discharged outside the housing 10, preventing the condensed water from flowing within the housing 10 or penetrating the control assembly 20, thereby improving the safety performance of the product and solving the existing problem of condensed water easily causing short circuits in electronic components. At the same time, by providing the heat dissipation assembly 40 to dissipate heat from the control assembly 20, the heat dissipation efficiency is improved, and the temperature of the electrical box is quickly cooled. Moreover, by utilizing the connection between the first cavity 110 and the third cavity 130, the heat dissipation assembly 40, acting as a cold source, can radiate into the first cavity 110, thereby improving the heat conduction efficiency and effectively reducing the temperature rise within the electrical box.

[0057] like Figure 1-Figure 3 As shown, the electrical box includes a housing 10, a control assembly 20, a flow guide 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. The second cavity 120 is connected to the first cavity 110 and the third cavity 130, respectively. It should be noted that the first cavity 110 and the third cavity 130 are located on either side of the second cavity 120.

[0058] The control assembly 20 is disposed within the first cavity 110. It should be noted that the control assembly 20 includes a compressor drive board 210, a fan drive board 220, and electronic components mounted on each of the compressor drive board 210 and the fan drive board 220. The control assembly 20 generates a large amount of heat, requiring timely dissipation of the heat. For example, the compressor drive board 210 is equipped with an IPM (Intelligent Power Module).

[0059] The flow guiding component 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 with each other through the flow guiding component 30 .

[0060] The heat dissipation assembly 40 is disposed in the third cavity 130; the heat dissipation assembly 40 is used to cool the control assembly 20, and the heat dissipation assembly 40 can discharge condensed water on the heat dissipation assembly 40 during the cooling process to the space outside the housing 10. It should be noted that when the temperature of the heat dissipation assembly 40 is low and the temperature inside the electrical box is high, condensed water is easily generated on the surface of the heat dissipation assembly 40. By providing the heat dissipation assembly 40, the condensed water during the cooling process can be discharged outside the electrical box, preventing the condensed water from flowing within the housing 10 or penetrating the control assembly 20. By providing the heat dissipation assembly 40, the control assembly 20 is cooled, thereby improving the heat dissipation efficiency and rapidly cooling the electrical box.

[0061] like Figure 1 As shown, in some embodiments, the housing 10 includes a main body 140, a side protrusion 150, and a heat dissipation portion 160; the side protrusion 150 is disposed on the side wall of the main body 140 and is connected to the main body 140. The side protrusion 150 has a window groove 1501 on the side away from the main body 140. It should be noted that the side protrusion 150 can be integrally molded with the main body 140 to achieve connection and communication. It should also be noted that the height of the main body 140 is greater than the height of the side protrusion 150, and the height of the side protrusion 150 is greater than the height of the heat dissipation portion 160.

[0062] The heat dissipation portion 160 is disposed on a side of the side protrusion 150 away from the main body 140, and the heat dissipation portion 160 and the side protrusion 150 together form the third cavity 130. It should be noted that the heat dissipation portion 160 can be integrally molded with the side protrusion 150 and the main body 140 to achieve connection and communication.

[0063] like Figure 2 、 Figure 5 As shown, the heat dissipation portion 160 is provided with a through slot 1601 that communicates with the third cavity 130. The heat dissipation assembly 40 is inserted into the third cavity 130 through the through slot 1601, and the heat dissipation assembly 40 is arranged opposite the window slot 1501. The heat dissipation assembly 40 is accommodated by the third cavity 130, and the heat dissipation assembly 40 is arranged opposite the window slot 1501 to increase the heat dissipation area. In addition, the through slot 1601 facilitates the removal and installation of the heat dissipation assembly 40.

[0064] like Figure 2As shown, in some embodiments, the heat dissipation assembly 40 includes a cold source heat sink 410 and a sealing member 420, and the cold source heat sink 410 is disposed in the third cavity 130. It should be noted that the cold source heat sink 410 includes two oppositely disposed heat sinks and a refrigerant pipe installed between the two heat sinks. The refrigerant pipe can be spirally arranged to increase the refrigerant volume and improve the heat dissipation efficiency. The refrigerant in the refrigerant pipe can be cold water, and of course it can also be other refrigerants. There is no limitation if no application is made. It should also be noted that the cold source heat sink 410 can abut against the side of the heat dissipation portion 160 away from the side protrusion 150.

[0065] The seal 420 is located in the through groove 1601 and cooperates with the through groove 1601, and the seal 420 can support the cold source part. It should be noted that the seal 420 can be a rubber seal 420. It should also be noted that the seal 420 includes a first sealing section and a second sealing section, and the size of the first sealing section in the length direction X is smaller than the size of the second sealing section in the length direction X, so as to form a step surface, wherein the first sealing section is located in the through groove 1601, and the step surface abuts the bottom surface of the heat dissipation portion 160. It should also be noted that the size of the third cavity 130 in the length direction X is L1, and the size of the cold source heat sink 410 in the length direction X is L2, L1>L2, so as to provide space for the condensed water on the cold source heat sink 410 to flow, so that the condensed water can flow along the cold source heat sink 410 to the seal 420 and then be discharged. It should also be noted that, if Figure 2 As shown, the length direction X is the length direction of the shell, the width direction Y is the width direction of the shell, and the height direction Z is the height direction of the shell, and the length direction X, the width direction Y and the height direction Z are perpendicular to each other.

[0066] The seal 420 cooperates with the through groove 1601 to seal the through groove 1601, thereby preventing the low temperature provided by the cold source heat sink 410 from being transferred to the external space of the housing 10 through the through groove 1601, thereby reducing the heat dissipation efficiency.

[0067] like Figure 5 、 Figure 6 As shown, the seal 420 is provided with at least one drainage hole 4201 that passes through the seal 420 in the height direction Z. Condensed water on the cold source heat sink 410 is drained to the external space of the housing 10 through the drainage hole 4201, preventing the condensed water from damaging the control assembly 20 within the housing 10. At the same time, by providing the drainage hole 4201 on the seal 420, the condensed water can be prevented from flowing out through the gap between the seal 420 and the heat dissipation portion 160.

[0068] In some embodiments, the diameter of the drain hole 4201 is less than 1 mm. By limiting the diameter of the drain hole 4201, while ensuring drainage, the low temperature provided by the cold source heat sink 410 is minimized from being transferred to the external space of the housing 10 through the drain hole 4201, thereby ensuring heat dissipation efficiency.

[0069] like Figure 5 As shown, in some embodiments, the cold source heat sink 410 has an inlet pipe 4101 and an outlet pipe on a side near the sealing member 420. The sealing member 420 is provided with a first through-hole and a second through-hole for the inlet pipe 4101 and the outlet pipe to pass through, respectively. The first through-hole cooperates with the inlet pipe 4101, and the second through-hole cooperates with the outlet pipe. It should be noted that the inlet pipe 4101 is the refrigerant inlet of the cold source heat sink 410, and the outlet pipe is the refrigerant outlet of the cold source heat sink 410. The inlet pipe 4101 and the outlet pipe are respectively connected to the refrigerant pipe of the cold source heat sink 410. Heat dissipation and temperature reduction are achieved by using the cold source heat sink 410 as a cold source.

[0070] In some embodiments, the through groove 1601 is located on the bottom surface of the heat dissipation portion 160, and the sealing member 420 is parallel to the width direction X; or the groove is located on the side of the heat dissipation portion 160, and the sealing member 420 is parallel to the height direction Z. For example, Figure 5 As shown, the through groove 1601 is located on the bottom surface of the heat dissipation portion 160 , and the sealing member 420 is parallel to the width direction Y. After removing the sealing member 420 , the cold source heat dissipation member 410 can be taken out from the through groove 1601 on the bottom surface of the heat dissipation portion 160 .

[0071] like Figure 5 As shown, in some embodiments, the guide assembly 30 includes a guide portion 310 and a bent portion 320; the guide portion 310 is arranged at the window groove 1501, the guide portion 310 abuts against the side of the side protrusion 150 away from the main body 140, and at least one guide groove 3101 is provided on the guide portion 310. It should be noted that the guide portion 310 and / or the bent portion 320 can be connected to the shell 10. It should also be noted that a plurality of guide grooves 3101 can be provided on the guide portion 310, for example, Figure 5 As shown, the guide grooves 3101 are arranged in a multi-row, multi-column array. It should also be noted that, on a plane perpendicular to the longitudinal direction (X), the projection of the window grooves 1501 lies within the projection of the cold source heat sink 410. By providing the guide grooves 3101, the third cavity 130 is connected to the second cavity 120, allowing the low temperature provided by the cold source heat sink 410 to directly act on the heating element, effectively reducing the temperature rise of the electrical component.

[0072] One end of the bent portion 320 is connected to the guide portion 310, and the bent portion 320 is perpendicular to the guide portion 310. It should be noted that the bent portion 320 can serve as the bottom surface of the housing 10 to seal the housing 10. It should also be noted that the bottom of the housing 10 is provided with a support portion that bends toward the interior of the housing 10. The support portion abuts the bent portion 320, facilitating installation of the guide assembly 30.

[0073] like Figure 7 As shown, at least one guide member 330 is provided on the guide portion 310. The at least one guide member 330 corresponds to at least one guide groove 3101. The guide member 330 is connected to the guide portion 310 to form a guide cavity. The guide groove 3101 is located in the corresponding guide cavity. The provision of the guide cavity serves to guide and buffer condensed water, preventing condensed water dripping onto the guide portion 310 or condensed water generated on the guide portion 310 from acting on the control assembly 20 through the guide groove 3101.

[0074] like Figure 7 As shown, in some embodiments, the guide member 330 has a guide slope 3301, and the distance between the guide slope 3301 and the guide groove 3101 gradually decreases from top to bottom along the height direction Z. The guide slope 3301 guides the condensed water into the guide groove 3101, and the condensed water flows along the guide slope 3301 into the guide groove 3101, then flows along the guide portion 310 into the drain hole 4201, and is finally discharged to the outside of the electrical box.

[0075] In some embodiments, on a plane perpendicular to the longitudinal direction X, the projection of the window groove 1501 is located within the projection of the guide member 330, and the projection of at least one guide groove 3101 is located within the projection of the window groove 1501. It should be noted that, on a plane perpendicular to the longitudinal direction X, the projection of the window groove 1501 can be rectangular, and the projection of the guide groove 3101 can also be rectangular. By having the projection of the window groove 1501 located within the projection of the guide member 330, the guide member 330 serves as a low-temperature outlet for the cold source heat sink 410, avoiding the presence of a gap between the window groove 1501 and the guide member 330, and preventing condensed water generated in the gap or condensed water on the cold source heat sink 410 from flowing through the gap into the electronic components and causing damage to the electronic components. The projections of the guide grooves 3101 are all located within the projections of the window grooves 1501, so that the condensed water flows into the guide grooves 3101 along the guide slopes 3301, and then flows into the drainage holes 4201 through the window grooves 1501, and is finally discharged to the outside of the electrical box.

[0076] like Figure 2 、 Figure 3 As shown, in some embodiments, the electrical box includes a first partition 50 and a second partition 60;

[0077] The first separator 50 is connected to the main body 140. The first separator 50, the main body 140, and the bent portion 320 together form a fourth cavity 170, which is isolated from the first cavity 110, the second cavity 120, and the third cavity 130. It should be noted that the first separator 50 is provided with a wire hole for routing wires, and a wire rubber ring is installed in the hole for sealing. It should also be noted that a terminal block is installed in the fourth cavity 170, and the terminal block is mounted on the first separator 50.

[0078] The second partition 60 is connected to the main body 140. The second partition 60, the first partition 50, and the main body 140 together form the first cavity 110. It should be noted that the first cavity 110 is located above the second cavity 120. There is a gap between the bottom of the second partition 60 and the top of the first partition 50, which allows the first cavity 110 to communicate with the second cavity 120. It should also be noted that the second partition 60 can be provided with ventilation holes to enhance air flow within the housing 10. It should also be noted that the first cavity 110 is located above the fourth cavity 170.

[0079] The first partition 50, the second partition 60, the lateral protrusion 150, and the bent portion 320 together form the second cavity 120. It should be noted that the second cavity 120 contains heating components such as a filter board and a reactor, which are mounted on the first partition 50.

[0080] like Figure 2 As shown, 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 is located in the first cavity 110. The fan 70 enhances the airflow between the various cavities in the housing 10, forming a circulating air duct in the electrical box to prevent heat accumulation in each cavity; at the same time, the fan 70 can blow away the heat from the control component 20, using air cooling to quickly dissipate heat from the control component 20, effectively solving the problem of heat accumulation in the electrical box and improving the cooling efficiency of the heat sink 40.

[0081] The radiator 80 is connected to the second partition 60 and is located in the second cavity 120. It should be noted that the radiator 80 can be a refrigerant heat exchanger, and the refrigerant radiator 80 is provided with heat dissipation fins. It should also be noted that the number of radiators 80 is at least one, and the number of radiators 80 is determined by the area of ​​the compressor drive plate 210 and the fan drive plate 220 of the control component 20. For example, Figure 2 As shown, the radiator 80 is a radiator. The radiator 80 cools down the control assembly 20 and other electronic components in the electrical box, further improving the heat dissipation effect and efficiency.

[0082] The control assembly 20 is connected to the second partition 60 and abuts against the radiator 80 for heat exchange. This abutment improves heat exchange efficiency, and combined with the cooling provided by the fan 70, the control assembly 20 is quickly cooled, thereby reducing the temperature rise within the electrical box.

[0083] The cooling process of the electrical box is as follows: the heat dissipation component 40 acts as a cold source and radiates into the second cavity 120 through the guide groove 3101. The surface temperature of the electrical components in the second cavity 120 is effectively reduced, and the ambient temperature in the second cavity 120 is reduced. The control component 20 in the first cavity 110 dissipates heat through the radiator 80, and the heat is radiated into the second cavity 120, and effectively dissipated through the heat dissipation component 40. And because the first cavity 110 and the second cavity 120 are connected, the heat dissipation component 40 can radiate into the first cavity 110 as a cold source. The surface temperature of the electrical components in the first cavity 110 is effectively reduced, and the ambient temperature in the first cavity 110 is reduced.

[0084] Because the ambient temperature inside the electrical box is high while the temperature of the heat dissipation assembly 40 is low, condensation is easily generated on the cold source heat sink 410. When condensation accumulates on the cold source heat sink 410, it flows downward along the cold source heat sink 410 and is discharged through the drainage holes 4201 in the sealing member 420. When the condensation on the cold source heat sink 410 drips onto the flow guide assembly 30, it flows along the flow guide slope 3301 into the side of the flow guide portion 310 near the fourth cavity 170 and is discharged through the drainage holes 4201 in the sealing member 420.

[0085] A humidity and temperature sensor can be set in the electrical box, and the humidity and temperature sensor can be electrically connected to the control component 20. The dew point temperature is pre-set on the humidity and temperature sensor. When the temperature in the electrical box detected by the humidity and temperature sensor is lower than the dew point temperature, the refrigerant temperature of the cold source heat sink 410 is regulated to avoid condensation on the surface of the components.

[0086] At least one embodiment of the present application further provides an air conditioner, comprising the electrical box described in any embodiment of the present application, and thus having all the technical effects brought about by the technical solutions of the above embodiments.

[0087] While the present invention has been described with reference to preferred embodiments, various modifications may be made and equivalent components may be substituted without departing from the scope of the present invention. In particular, the various technical features described in the various embodiments may be combined in any manner, provided no structural conflicts exist. The present invention is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions within the scope of the claims.

Claims

1. An electrical appliance box, characterized in that: include: A housing having a first cavity, a second cavity, and a third cavity therein, wherein the second cavity is communicated with the first cavity and the third cavity respectively; a control assembly disposed in the first cavity; a flow guide component, which is disposed between the second cavity and the third cavity, and the second cavity and the third cavity are connected through the flow guide component; as well as a heat dissipation component, which is disposed in the third cavity; The heat dissipation component is used to cool the control component, and the heat dissipation component can discharge condensed water on the heat dissipation component during the cooling process to the external space of the housing; The housing comprises: Main body; The side convex portion is arranged on the side wall of the main body and is connected to the main body. A window groove is provided on a side away from the main body; The heat dissipation part is arranged on the side of the side protrusion away from the main body, and the heat dissipation part is connected to the The side convex parts together form the third cavity; The heat dissipation portion is provided with a through slot communicating with the third cavity, the heat dissipation component is passed through the third cavity through the through slot, and the heat dissipation component is arranged opposite to the window slot; The heat dissipation component includes: A cold source heat dissipation element, which is arranged in the third cavity; a sealing member located in the through groove and matched with the through groove, wherein the sealing member can support the cooling source and heat dissipation member; Wherein, the sealing member is provided with at least one drainage hole penetrating the sealing member in the height direction (Z); The flow guide assembly includes: a guide portion, which is arranged at the window groove, the guide portion abuts against a side of the side convex portion away from the main body portion and is provided with at least one guide groove; a bending portion, one end of which is connected to the guide portion, and the bending portion is perpendicular to the guide portion; Wherein, at least one guide member is provided on the guide portion, the at least one guide member corresponds to the at least one guide groove one-to-one, the guide member is connected to the guide portion to form a guide cavity, and the guide groove is located in the corresponding guide cavity.

2. The electrical box according to claim 1, characterized in that: The diameter of the drainage hole is less than 1 mm.

3. The electrical box according to claim 1, characterized in that: The cold source heat dissipation element has an inlet pipe and an outlet pipe on the side close to the sealing element. The sealing element 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 cooperates with the inlet pipe, and the second through hole cooperates with the outlet pipe.

4. The electrical box according to claim 1, characterized in that: The through groove is located on the bottom surface of the heat dissipation portion, and the sealing member is parallel to the width direction (Y); or The through groove is located on a side surface of the heat dissipation portion, and the sealing member is parallel to the height direction (Z).

5. The electrical appliance box according to claim 1, characterized in that: The flow guide member has a flow guide slope, and the distance between the flow guide slope and the flow guide groove gradually decreases from top to bottom along the height direction (Z).

6. The electrical appliance box according to claim 1, characterized in that: On a plane perpendicular to the length direction (X), the projection of the window groove is located within the projection of the guide member, and the projection of the at least one guide groove is located within the projection of the window groove.

7. The electrical appliance box according to claim 1, characterized in that: The electrical box includes: a first partition connected to the main body, wherein the first partition, the main body, and the bent portion together form a fourth cavity, and the fourth cavity is isolated from the first cavity, the second cavity, and the third cavity; a second partition connected to the main body, wherein the second partition, the first partition and the main body together form the first cavity; The first partition, the second partition, the side convex portion and the bent portion together form the second cavity.

8. The electrical appliance box according to claim 7, characterized in that: The electrical box includes: a fan connected to the second partition, wherein the fan is located in the first cavity; a radiator connected to the second partition, the radiator being located in the second cavity; The control component is connected to the second partition, and the control component abuts against the radiator to perform heat exchange.

9. An air conditioner, characterized in that: The invention comprises the electrical box according to any one of claims 1 to 8.

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