CN219042175U

CN219042175U - Waterproof assembly of electrical box

Info

Publication number: CN219042175U
Application number: CN202222980577.6U
Authority: CN
Inventors: 赖博辉; 王宏望; 王森
Original assignee: Guangdong Zhongguang HVAC Co Ltd
Current assignee: Guangdong Zhongguang HVAC Co Ltd
Priority date: 2022-11-09
Filing date: 2022-11-09
Publication date: 2023-05-16
Anticipated expiration: 2032-11-09

Abstract

The application provides a waterproof assembly of electrical apparatus box is applied to air conditioner technical field, through set up waterproof assembly in one side that the median septum was facing away from electrical apparatus box, this waterproof assembly includes waterproof apron and radiator fan, waterproof apron includes first waterproof board and second waterproof board, first waterproof board is connected the back with the second waterproof board, link to each other with the upper and lower both sides of thermovent respectively, make waterproof apron cover establish on the thermovent, and waterproof apron's inner space and thermovent intercommunication, and form the air outlet in front and back both sides, be used for the heat dissipation, set up radiator fan between thermovent and air outlet, and radiator fan's size is less than the size of one side air outlet, radiator fan accelerates the air current flow direction opposite side of thermovent department, reach good radiating effect, therefore, this electrical apparatus box's waterproof assembly possesses the radiating effect good, the beneficial effect that waterproof capability is strong.

Description

Waterproof assembly of electrical box

Technical Field

The application relates to the technical field of air conditioners, in particular to a waterproof assembly of an electrical box.

Background

The variable frequency air conditioner comprises an indoor unit and an outdoor unit, an axial flow fan and an electric box are arranged in the outdoor unit, the axial flow fan and the electric box are separated through a middle partition plate and are respectively located at two sides of the middle partition plate, the electric box is used for placing a circuit board of the air conditioner, when the air conditioner operates at a high temperature, the temperature of a main chip of the circuit board can reach 130 ℃ at most, in order to reduce the temperature of the main chip, a cooling air channel is usually arranged in the electric box except for cooling by using a refrigerant, an air outlet of the cooling air channel is close to the axial flow fan, and the axial flow fan rotates to drive air flow to enable negative pressure to be formed in the electric box, so that hot air in the electric box flows outwards to reduce the temperature of the main chip. Among the prior art, patent number 213747073U-air conditioner outer machine electrical apparatus box and air conditioner disclose a waterproof radiating device on the electrical apparatus box, and its solution is for setting up a plurality of breakwaters of buckling, crisscross, blocks the water that splashes of two sides side that arouses by the fan rotation, and although a plurality of breakwaters that this mode set up do not seal the heat dissipation passageway, and still offered the heat dissipation groove on the breakwaters, still have a problem: too many breakwater designs can be unavoidable when axial fan rotates, make the air current of axial fan one side be received the interference of breakwater to lead to the negative pressure in the electrical apparatus box not enough, wherein hot air can not fully circulate with external air, and then lead to the heat dissipation insufficient, influence the life of main chip in the electrical apparatus box.

In view of the above, there is a need in the art for improvements.

Disclosure of Invention

An object of the application is to provide a waterproof assembly of electrical apparatus box, have the radiating effect good, the strong beneficial effect of waterproof ability.

In a first aspect, the present application provides a waterproof assembly of an electrical box, the technical scheme is as follows:

the waterproof assembly is arranged on one side of the middle partition plate, which is away from the electric appliance box, and comprises a waterproof cover plate and a cooling fan;

the waterproof cover plate comprises a first waterproof plate and a second waterproof plate, one end of the first waterproof plate is connected with the upper side of the heat dissipation opening, the other end of the first waterproof plate is connected with one end of the second waterproof plate, the other end of the second waterproof plate is connected with the lower side of the heat dissipation opening, the waterproof cover plate covers the heat dissipation opening, the inner space of the waterproof cover plate is communicated with the heat dissipation opening, and air outlets communicated with the outside are formed in the front side and the rear side of the waterproof cover plate respectively;

the cooling fan is arranged between the cooling opening and the air outlet, and the size of the cooling fan is smaller than that of the air outlet.

In the variable frequency air conditioner, be provided with in the off-premises station and separate electrical apparatus box and axial fan, because electrical apparatus box can produce a large amount of heat when the operation, for the heat dissipation, can set up the thermovent with electrical apparatus box intercommunication on well baffle, and axial fan is in the operation, unavoidable drop of water on the flabellum can pass in the thermovent splashes into electrical apparatus box because of centrifugal force, cause the harm to electrical apparatus component in the electrical apparatus box, in serious time, even can take place the short circuit, consequently, through set up waterproofing membrane in the one side of median baffle dorsad electrical apparatus box, this waterproofing membrane includes waterproof cover plate and radiator fan, waterproof cover plate includes first waterproof plate and second waterproof plate, be used for blockking two side drop of water respectively and splash, after being connected with the second waterproof plate, link to each other with the upper and lower both sides of thermovent, make waterproof cover plate cover set up on the thermovent, not only can block the drop that splashes from on the axial fan, can also block external rainwater and permeate into electrical apparatus box through the mouth, and waterproof cover plate's inner space and thermovent intercommunication, and in front and back both sides form the air outlet, be used for the heat dissipation cover set up on one side of the median, and the air outlet is small to the air outlet that can be had the heat dissipation effect that is good, therefore, the radiator fan can be greatly improved to the air outlet is greatly avoided to the radiating effect that can be set up to the air outlet is good to the air outlet on the opposite side of the radiator fan, and has the radiator fan.

Further, in some embodiments, the first waterproof board is provided with a first extension portion bent downward by 90 ° and the lower end of the first extension portion is located at a position flush with the lower side of the heat dissipation opening.

Through being provided with the first extension of buckling 90 downwards on first waterproof board, when the one end of first waterproof board is connected with the upside of thermovent, can block the water droplet from top and left side, first extension lower extreme position flushes in thermovent downside position, has both covered the thermovent completely, has also avoided first extension to extend the overlength and has produced the interference to other parts, and practiced thrift manufacturing cost.

Further, in some technical solutions, the surface of the bending part of the first waterproof board is set to be an arc surface.

Through setting the surface of the bending part of the first waterproof board to be an arc surface, when water drops are condensed on the upper surface of the first waterproof board, the water drops can timely drip to the first extending part along the arc surface, so that the water drops are prevented from condensing on the first waterproof board, a moist environment is formed, and corrosion is caused on the waterproof cover board.

Further, in some technical schemes, a plurality of first water flowing tanks with outward openings are arranged on the outer side surface of the first waterproof board, the first water flowing tanks are paved side by side, and two ends of the first water flowing tanks are contacted with two ends of the first waterproof board.

Through offer the outside first water tank of many openings at first waterproof board outside surface, the water droplet of being convenient for flows down along the cell body, is difficult for gathering and produces steam, has avoided the corruption of moist environment to surrounding parts.

Further, in some technical schemes, the second waterproof board comprises two inclined planes, the two inclined planes jointly form a V-shaped structure, two ends of the V-shape are respectively connected with the other end of the first waterproof board and the lower side of the heat dissipation opening, and the tip of the V-shape faces downwards.

Further, in some embodiments, the second waterproof board is provided with a second extension portion extending backward, and a surface of the second extension portion is a plane for placing the heat dissipation fan.

Further, in some technical schemes, a plurality of second water flowing grooves with outward openings are formed in the outer side surface of the second waterproof plate, two ends of the second water flowing groove are respectively contacted with two ends of the second waterproof plate, and the second water flowing groove is communicated with the first water flowing groove.

Further, in some technical schemes, the side edge that waterproof apron and thermovent are connected is provided with fixed part, and fixed part edge surpasses the side edge of thermovent, is provided with fixed through-hole on the fixed part, and fixed through-hole inboard surface is provided with the screw thread, and fixed part is used for fixed with the median septum.

Further, in some technical solutions, threaded mounting holes are provided at positions of the side edges of the middle partition plate, which are close to the heat dissipation openings, corresponding to the fixing through holes.

Further, in some technical schemes, the junction of the first waterproof board and the second waterproof board is provided with a plurality of reinforcing ribs for making the waterproof cover plate structure more stable.

From the above, the utility model provides a waterproof assembly of electrical apparatus box, through set up waterproof assembly in the one side of median septum dorsad electrical apparatus box, this waterproof assembly includes waterproof apron and radiator fan, waterproof apron includes first waterproof board and second waterproof board, be used for blockking two side drop and splash respectively, first waterproof board is connected with the second waterproof board after, link to each other with the upper and lower both sides of thermovent respectively, make waterproof apron cover establish on the thermovent, not only can block the water droplet that comes from splashing on the axial fan, can also block external rainwater and permeate into electrical apparatus box through thermovent, and waterproof apron's inner space and thermovent intercommunication, and form the air outlet in front and back both sides, be used for the heat dissipation, but waterproof apron cover establishes on the thermovent, can not cause certain hindrance to the radiating effect, consequently, set up radiator fan between thermovent and one side air outlet, and radiator fan's size is less than the size of air outlet quickening thermovent department's air current flow direction opposite side, thereby, the good radiating effect is reached, therefore, waterproof assembly of this box possesses good radiating effect, waterproof effect is strong, the waterproof capability is good.

Drawings

Fig. 1 is a rear view of a waterproof assembly of an electrical box provided by the present application.

Fig. 2 is a front view of a waterproof assembly of an electrical box provided by the present application.

Fig. 3 is an exploded view of a waterproof assembly of an electrical box provided by the present application.

Fig. 4 is a schematic structural view of a waterproof cover plate in a waterproof assembly of an electrical box provided by the application.

In the figure: 100. an electrical box; 200. a middle partition plate; 300. a heat radiation port; 400. a waterproof assembly; 410. a waterproof cover plate; 420. a heat radiation fan; 411. a first waterproof board; 412. a second waterproof board; 413. an air outlet; 4110. A first extension; 4111. a cambered surface; 4112. a first water flow channel; 4120. a second extension; 4121. a second water flow channel; 414. a fixing part; 4140. a fixing through hole; 210. a mounting hole; 415. reinforcing ribs; 500. an axial flow fan.

Detailed Description

The following description of the embodiments of the present application will be made clearly and completely with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. The components of the embodiments of the present application, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, as provided in the accompanying drawings, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, are intended to be within the scope of the present application.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the prior art, in order to avoid the water droplet that axial fan rolled up to splash and get into electrical apparatus box, cause harm to electrical components wherein, can establish the breakwater at the heat dissipation gauze mask generally, but the setting of breakwater can influence the radiating effect of thermovent inevitably.

In this regard, referring to fig. 1 to 4, a waterproof assembly of an electrical box has the following technical scheme:

the electric appliance box 100 is provided with a middle partition board 200 at one side, a heat dissipation opening 300 is formed in the middle partition board 200, the heat dissipation opening 300 is communicated with the electric appliance box 100, and the waterproof assembly 400 is arranged at one side of the middle partition board 200, which is away from the electric appliance box 100, and comprises a waterproof cover board 410 and a heat dissipation fan 420;

the waterproof cover plate 410 includes a first waterproof plate 411 and a second waterproof plate 412, one end of the first waterproof plate 411 is connected with the upper side of the heat dissipation port 300, the other end is connected with one end of the second waterproof plate 412, the other end of the second waterproof plate 412 is connected with the lower side of the heat dissipation port 300, so that the waterproof cover plate 410 is covered on the heat dissipation port 300, and the inner space of the waterproof cover plate 410 is communicated with the heat dissipation port 300, and air outlets 413 communicated with the outside are formed at the front side and the rear side respectively.

The cooling fan 420 is disposed between the cooling port 300 and the air outlet 413, and the size of the cooling fan 420 is smaller than the size of the air outlet 413.

The electrical box 100 is disposed in a cavity of the outdoor unit of the variable frequency air conditioner and is separated from the axial fan 500 by the middle partition 200, a main chip is disposed in the electrical box 100, and generates a large amount of heat during operation, if the heat is not timely discharged, the service life of electrical components in the electrical box 100 is seriously affected, therefore, a heat dissipation port 300 communicated with the electrical box 100 is generally disposed on the middle partition 200, so that the heat is conveniently discharged from the electrical box 100 through the heat dissipation port 300, the heat dissipation port 300 is disposed on the middle partition 200, and an axial fan 500 is disposed on the other side of the middle partition 200, on one hand, the axial fan 500 operates to accelerate the flow velocity of the air on one side of the middle partition 200, so that a negative pressure is formed on one side of the electrical box 100, and hot air therein can generate heat exchange with external air more quickly through the heat dissipation port 300, but on the other hand, water drops on the axial fan 500 can splash into the electrical components in the electrical box 100 through the heat dissipation port 300, thereby causing adverse effects on the electrical components in the electrical box 100, and the waterproof assembly 400 needs to be disposed on the heat dissipation port 300.

The waterproof assembly 400 includes a waterproof cover plate 410 and a cooling fan 420, wherein the waterproof cover plate 410 is covered on the cooling hole 300 to block water drops from the axial flow fan 500 and the outside from entering the electrical box 100, and the cooling fan 420 operates to accelerate the flow velocity of the air flow at the cooling hole 300, so that the hot air in the electrical box 100 flows out faster, and a good cooling effect of the waterproof assembly 400 on the interior of the electrical box 100 is ensured.

The waterproof cover plate 410 includes a first waterproof plate 411 and a second waterproof plate 412, one ends of the first waterproof plate 411 and the second waterproof plate 412 are respectively connected with the upper side and the lower side of the heat dissipation opening 300, the other ends of the first waterproof plate 411 and the second waterproof plate 412 are connected with each other, the waterproof cover plate 410 integrally forms a box body with a back-off function, an inner space is communicated with the electrical box 100, and front and rear sides form air outlets 413 communicated with the outside, so that hot air inside the electrical box 100 flows to the air outlets 413 through the heat dissipation opening 300. Wherein the waterproof cover 410 forms a box structure comprising at least two faces, for example: the two inclined planes form an inverted V shape, two ends of the V shape are respectively connected with the upper side and the lower side of the heat dissipation port 300, or the three faces form an inverted U shape, two ends of the U shape are respectively connected with the upper side and the lower side of the heat dissipation port 300, and the inverted V shape is used for preventing outside water drops from splashing into the electric box. It should be noted that, the directions of "up, down, front and back" are all defined based on the directions shown in fig. 2, but the directions of the waterproof assembly of the electrical box are not limited when the waterproof assembly is specifically used.

In practical application, the waterproof cover plate 410 covered on the heat dissipation port 300 blocks water drops from the axial flow fan 500 and outside from entering the electrical box 100, but simultaneously, a certain deceleration effect is caused on the airflow velocity outside the electrical box 100, so that the exchange speed of hot air in the electrical box 100 and outside air is slowed down, and the heat dissipation effect of the electrical box 100 is affected, therefore, the heat dissipation fan 420 is arranged between the heat dissipation port 300 and the air outlet 413, the size of the heat dissipation fan 420 is smaller than that of the air outlet 413, in some preferred embodiments, the size of the heat dissipation fan 420 is only slightly smaller than that of the air outlet 413, so that the heat dissipation fan 420 can block the air outlet 413 on one side and blow air to the other side, the air outlet quantity at the heat dissipation port 300 is increased, the defect that the air velocity outside the electrical box 100 is insufficient is overcome, the hot air flowing out of the heat dissipation port 300 is accelerated to the air outlet 413 on the other side, the temperature in the electrical box 100 is always maintained between 50 DEG and 60 DEG, and the service life is prolonged.

In the variable frequency air conditioner, a middle partition board 200 is arranged in an outdoor unit to separate an electric box 100 from an axial flow fan 500, because a great amount of heat is generated when the electric box operates, a heat dissipation opening 300 communicated with the electric box 100 is formed in the middle partition board 200 for heat dissipation, when the axial flow fan 500 operates, water drops on fan blades inevitably splash into the electric box 100 due to centrifugal force passing through the heat dissipation opening 300, damage is caused to electric elements in the electric box 100, and even short circuit occurs when the water drops are serious, therefore, by arranging a waterproof assembly 400 on one side of the middle partition board 200 facing away from the electric box 100, the waterproof assembly 400 comprises a waterproof cover board 410 and a heat dissipation fan 420, the waterproof cover board 410 comprises a first waterproof board 411 and a second waterproof board 412 which are respectively used for blocking the splashing of the water drops on both sides, and after the first waterproof board 411 is connected with the second waterproof board 412, the waterproof cover plate 410 is respectively connected with the upper side and the lower side of the heat radiation opening 300, so that the waterproof cover plate 410 is covered on the heat radiation opening 300, water drops splashed on the axial flow fan 500 can be prevented, external rainwater can be prevented from penetrating into the electric box 100 through the heat radiation opening 300, the inner space of the waterproof cover plate 410 is communicated with the heat radiation opening 300, air outlets 413 are formed in the front side and the rear side and used for radiating heat, but the waterproof cover plate 410 is covered on the heat radiation opening 300, and certain obstruction can be inevitably caused to the heat radiation effect, therefore, the heat radiation fan 420 is arranged between the heat radiation opening 300 and the air outlet 413 on one side, the size of the heat radiation fan 420 is smaller than that of the air outlet 413 on the other side, and the air flow at the position of the heat radiation opening 300 is quickened by the heat radiation fan 420, so that a good heat radiation effect is achieved.

Further, referring to fig. 3 and 4, in some embodiments, the first waterproof board 411 is provided with a first extension portion 4110 bent downward by 90 °, and a lower end of the first extension portion 4110 is located at a position flush with a lower side of the heat dissipation port 300.

In practical application, the first waterproof board 411 is provided with the first extending portion 4110 bent downward by 90 ° so that the first waterproof board is in a right-angle structure, when the first waterproof board is fastened on the heat dissipation port 300, water drops from above and on the left side can be blocked, after the water drops are condensed on the horizontal surface of the first waterproof board 411 by the arrangement of bending downward by 90 °, the water drops can flow down along the bending downward along the first extending portion 4110, so that the water drops are prevented from penetrating into the electrical box 100 through the heat dissipation port 300, damage to electrical elements is avoided, and the condensed water drops are prevented from being corroded due to the fact that the water drops fall down in the wet environment for a long time, so that the service life is reduced. In order to make the first waterproof board 411 completely block water drops splashing on the left side, the first extending portion 4110 needs to completely cover the heat dissipation port 300, and the lower end of the first extending portion 4110 may exceed the position of the lower side of the heat dissipation port 300, but in order to avoid that the first extending portion 4110 extends too much to interfere with other components, in some preferred embodiments, the lower end of the first extending portion 4110 may be flush with the position of the lower side of the heat dissipation port 300, which can not only avoid interfering with other components, but also save materials and reduce production cost.

Further, referring to fig. 4, in some embodiments, a curved surface 4111 is formed on a surface of the first waterproof board 411.

In practical application, the surface of the bending portion of the first waterproof plate 411 is set to be the arc surface 4111, so that the water flow can more conveniently flow down along the first extension portion 4110, and the resistance caused by the arc surface bending portion to the water drops is small, so that the water drops can smoothly flow down.

Further, referring to fig. 3 and 4, in some embodiments, a plurality of outward opening first water flowing channels 4112 are formed on the outer side surface of the first waterproof board 411, the first water flowing channels 4112 are laid side by side, and two ends of the first water flowing channels 4112 are contacted with two ends of the first waterproof board 411.

In practical application, the outer surface of the first waterproof plate 411 is provided with a plurality of first water flowing grooves 4112 with outward openings, and the openings of the first water flowing grooves 4112 are outward, so that water droplets condensed on the surface of the first waterproof plate 411 can be gathered in the water grooves and flow down along the water grooves, and the possibility that the water droplets infiltrate into the interior of the electrical box 100 is further reduced.

Further, referring to fig. 1 and 2, in some embodiments, the second waterproof board 412 includes two inclined planes, the two inclined planes together form a V-shaped structure, two ends of the V-shape are respectively connected to the other end of the first waterproof board 411 and the lower side of the heat dissipation port 300, and the tip of the V-shape faces downward.

In practical application, one end of the second waterproof board 412 is connected to the other end of the first waterproof board 411, and one end is connected to the lower side of the heat dissipation port 300, so that the second waterproof board 412 may be set to be a plane, but due to the effect of the surface tension of the water drops, the water drops will adhere to the surface of the second waterproof board 412 and will not fall, and the adhesion of the water drops will increase the possibility of the second waterproof board 412 being corroded, so that, in order to fall with the water drops, in some preferred embodiments, the second waterproof board 412 may include two inclined planes, and the two inclined planes together form a V-shaped structure, the tip of the V-shaped structure is downward, the water drops more easily flow down along the inclined planes after condensation, and drop at the tip.

Further, in some embodiments, the second waterproof board 412 is provided with a second extension portion 4120 extending backward, and a surface of the second extension portion 4120 is a plane for placing the heat dissipating fan 420.

In practical application, the cooling fan 420 is disposed between the cooling port 300 and the air outlet 413, so that the cooling fan 420 drives the air flow to flow out from the air outlet 413 at the other side, in some preferred modes, the cooling fan 420 may be disposed at the air outlet 413 at the rear side of the waterproof cover plate 410, so that the cooling fan 420 can be better ensured to drive the hot air at the cooling port 300 to flow to the front air outlet 413, and the front air outlet 413 is communicated with the outside, so that the hot air can be better emitted. Since the second waterproof board 412 is disposed below the first waterproof board 411, in order to ensure that the cooling fan 420 can stably operate and drive the airflow between the waterproof cover board 410 and the heat dissipation port 300 to flow, the second extending portion 4120 extending backward may be disposed on the second waterproof board 412, and the second extending portion 4120 is disposed as a plane, so that the cooling fan 420 can be stably fixed on the second extending portion 4120.

Further, in some embodiments, the outer surface of the second waterproof board 412 is provided with a plurality of second water flowing grooves 4121 with outward openings, two ends of the second water flowing groove 4121 are respectively contacted with two ends of the second waterproof board 412, and the second water flowing groove 4121 is communicated with the first water flowing groove 4112.

In practical application, the outer surface of the second waterproof board 412 is also provided with a plurality of second water flowing grooves 4121, and the second water flowing grooves 4121 are communicated with the first water flowing grooves 4112, so that water drops attached to the outer side of the second waterproof board 412 can better gather and flow downwards, and drop from the tip of the second waterproof board 412, compared with a plane, the water drops attached to the tip of the second waterproof board 412 have small attaching capability, are easier to drop and cannot corrode the waterproof cover board 410, and the second water flowing grooves 4121 correspond to the positions of the first water flowing grooves 4112, so that the water drops on the first waterproof board 411 can smoothly slide downwards, and drop from the tip of the second waterproof board 412.

Further, referring to fig. 4, in some embodiments, a fixing portion 414 is disposed at a side edge of the waterproof cover 410 connected to the heat sink 300, the edge of the fixing portion 414 exceeds the side edge of the heat sink 300, a fixing through hole 4140 is disposed on the fixing portion 414, threads are disposed on an inner side surface of the fixing through hole 4140, and the fixing portion 414 is used for fixing with the middle partition 200.

In practical application, at least two contact positions of the waterproof cover plate 410 and the heat dissipation opening 300 exist, in order to enable the waterproof cover plate 410 to be covered on the heat dissipation opening 300 more stably, a fixing portion 414 may be disposed at a side edge position where the waterproof cover plate 410 is connected with the heat dissipation opening 300, the edge of the fixing portion 414 exceeds the side edge of the heat dissipation opening 300, so that the fixing portion 414 has a sufficient position to be fixed with the middle partition plate 200, thereby ensuring that the waterproof cover plate 410 covers the heat dissipation opening 300 completely, and water drops from the axial flow fan 500 and the outside cannot enter the electrical box 100 from the heat dissipation opening 300. The fixing portion 414 is provided with a fixing through hole 4140, and threads are provided in the fixing through hole 4140, so that a user can conveniently pass through the fixing through hole 4140 and the middle partition board 200 by using a screw matched with the fixing through hole 4140, rotate and engage with the threads, and fix the middle partition board on the middle partition board 200.

Further, in some of these embodiments, the middle separator 200 is provided with a threaded mounting hole 210 at a position near the side edge of the heat sink 300 corresponding to the fixing through hole 4140.

In practical application, the screw passes through the fixing hole 4140 and then enters the mounting hole 210, and is rotated to be engaged with the screw thread, so that the waterproof cover plate 410 is fixed on the middle partition plate 200, and the screw is reversely rotated when the disassembly is needed.

Further, in some embodiments, a plurality of reinforcing ribs 415 are provided at the connection between the first waterproof board 411 and the second waterproof board 412, so as to make the waterproof cover board 410 more stable in structure.

In practical application, the first waterproof board 411 is connected with the second waterproof board 412, the structure is not integrally formed, and the second waterproof board 412 is further provided with a cooling fan 420, so that the stability of the waterproof cover board 410 is reduced along with the increase of the service life, and the first waterproof board 411 and the second waterproof board 412 are fixed together and covered on the cooling port 300 so as not to easily fall off, and a plurality of reinforcing ribs 415 are arranged at the connection part of the first waterproof board 411 and the second waterproof board 412 to ensure the stability.

The foregoing is merely exemplary embodiments of the present application and is not intended to limit the scope of the present application, and various modifications and variations may be suggested to one skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. The waterproof assembly of the electrical box is characterized in that the waterproof assembly is arranged on one side of the middle partition plate, facing away from the electrical box, and comprises a waterproof cover plate and a cooling fan;

2. The waterproof assembly of an electrical box according to claim 1, wherein the first waterproof plate is provided with a first extension portion bent downwards by 90 degrees, and the lower end position of the first extension portion is flush with the position of the lower side of the heat dissipation port.

3. The waterproof assembly of an electrical box according to claim 2, wherein the surface of the bending part of the first waterproof plate is a cambered surface.

4. A waterproof assembly for an electrical box according to claim 3, wherein a plurality of first water flowing channels with outward openings are formed on the outer side surface of the first waterproof plate, the first water flowing channels are laid side by side, and two ends of the first water flowing channels are in contact with two ends of the first waterproof plate.

5. The waterproof assembly of claim 1, wherein the second waterproof plate comprises two inclined planes, the two inclined planes form a V-shaped structure together, two ends of the V-shape are respectively connected with the other end of the first waterproof plate and the lower side of the heat dissipation port, and the tip of the V-shape faces downwards.

6. The waterproof assembly of an electrical box according to claim 4, wherein the second waterproof plate is provided with a second extension portion extending rearward, and a surface of the second extension portion is a plane for placing the heat radiation fan.

7. The waterproof assembly of claim 6, wherein a plurality of second water flowing grooves with outward openings are formed in the outer side surface of the second waterproof plate, two ends of the second water flowing groove are respectively contacted with two ends of the second waterproof plate, and the second water flowing groove is communicated with the first water flowing groove.

8. The waterproof assembly of an electrical box according to claim 1, wherein a fixing portion is provided at a side edge of the waterproof cover plate connected with the heat dissipation opening, the side edge of the fixing portion exceeds a side edge of the heat dissipation opening, a fixing through hole is provided in the fixing portion, threads are provided on an inner side surface of the fixing through hole, and the fixing portion is used for fixing with the middle partition plate.

9. The waterproof assembly of the electrical box according to claim 8, wherein threaded mounting holes are formed in the side edges of the middle partition plate, which are close to the heat dissipation openings, corresponding to the fixing through holes.

10. The waterproof assembly of an electrical box according to claim 1, wherein a plurality of reinforcing ribs are arranged at the connection part of the first waterproof plate and the second waterproof plate, and are used for enabling the waterproof cover plate to be more stable in structure.