CN214619848U

CN214619848U - Electrical apparatus box and air condensing units

Info

Publication number: CN214619848U
Application number: CN202120597113.XU
Authority: CN
Inventors: 李成林; 周壮广; 奚明耀; 林肖纯
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2021-03-24
Filing date: 2021-03-24
Publication date: 2021-11-05
Anticipated expiration: 2031-03-24

Abstract

The utility model discloses an electrical apparatus box and air condensing units. The electrical box comprises an electrical box main body and an air deflector, the electrical box main body comprises a bottom plate and a top plate, a plurality of air inlet holes are formed in the bottom plate, air outlet holes are formed in the top plate, the air deflector is obliquely arranged on the lower side of the bottom plate, and the air inlet holes are covered by the projection of the air deflector on the bottom plate. The inclined air deflector plays a role in guiding the flow direction of air, the air enters a gap between the air deflector and the bottom plate along the inclined air deflector and enters the electrical box through the air inlet hole, and therefore fluid entering the interior of the electrical box after being guided by the air deflector has a certain included angle with the horizontal direction, eddy current is reduced, a through heat dissipation path is formed from bottom to top, and the heat dissipation efficiency of the electrical box is improved.

Description

Electrical apparatus box and air condensing units

Technical Field

The utility model relates to an electrical apparatus box and air condensing units.

Background

The electrical box of the upper air outlet type air conditioner outdoor unit has a smaller overall structure, electrical elements in the electrical box are more compact in layout, the heating power density is high, and the overall temperature is higher. Generally, an air-cooling heat dissipation mode is adopted to dissipate heat of the electrical box. Considering the dustproof and waterproof requirements, the heat dissipation window on the electrical box cannot be too large, so that the internal air quantity of the electrical box is less, and the actual heat dissipation effect is not ideal.

It is noted herein that the statements in this background section merely provide background information related to the present disclosure and may not necessarily constitute prior art.

SUMMERY OF THE UTILITY MODEL

The utility model provides an electrical apparatus box and air condensing units to improve the radiating effect of electrical apparatus box.

The utility model discloses the first aspect provides an electrical apparatus box, include:

the electric appliance box main body comprises a bottom plate and a top plate, wherein a plurality of air inlet holes are formed in the bottom plate, and air outlet holes are formed in the top plate; and

the air deflector is obliquely arranged on the lower side of the bottom plate, and the projection of the air deflector on the bottom plate covers at least part of the air inlet holes.

In some embodiments, the electrical box further comprises a partition plate, the partition plate is arranged in the inner cavity of the electrical box main body and divides the inner cavity into a first cavity and a second cavity in the thickness direction, and the partition plate is provided with a vent hole.

In some embodiments, the plurality of air inlet openings includes a greater number of air inlet openings in the first chamber than air inlet openings in the second chamber.

In some embodiments, the electrical box further comprises at least two components arranged in the electrical box main body, wherein the at least two components comprise a first component and a second component, the calorific value of the first component is larger than that of the second component, the first component is arranged in the first cavity, and the second component is arranged in the second cavity.

In some embodiments, the first component comprises a compressor drive plate and the second component comprises a main control plate.

In some embodiments, a plurality of air inlet openings are located in the first chamber.

In some embodiments, a plurality of air inlet openings are disposed adjacent to the baffle.

In some embodiments, the top plate is disposed obliquely relative to the bottom plate.

In some embodiments, the angle between the top and bottom plates ranges from 15 ° to 30 °.

In some embodiments, the air outlet is an oblong hole.

The utility model discloses the second aspect provides an air condensing units, including casing and above-mentioned electrical apparatus box, the top of casing is provided with the air outlet, and the electrical apparatus box is installed in the casing.

Based on the utility model provides an each side, the aviation baffle of slope forms the guide effect to the flow direction of air, and the air enters into in the clearance between aviation baffle and the bottom plate and enters into the electrical apparatus box through the fresh air inlet along the aviation baffle of slope in, consequently there is certain contained angle in the fluid of entering into the inside of electrical apparatus box after the aviation baffle guide with the horizontal direction, reduces the vortex to from upwards forming the heat dissipation route that link up down, and then improve the radiating efficiency of electrical apparatus box.

Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:

fig. 1 is a schematic structural view of an indoor unit of an air conditioner according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of the electrical box of FIG. 1;

FIG. 3 is an angled configuration of the appliance cartridge body of FIG. 2;

FIG. 4 is a schematic view of the electrical box of FIG. 2 at another angle;

FIG. 5 is a schematic view of the separator of FIG. 2;

FIG. 6 is a schematic view of the air flow direction in the electrical box of FIG. 2;

fig. 7 is a schematic diagram of the layout and air flow of the main control board in the electrical box shown in fig. 2.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously positioned and the spatially relative descriptors used herein interpreted accordingly.

Referring to fig. 1, an embodiment of the present invention provides an outdoor unit of an air conditioner. The outdoor unit of an air conditioner includes a casing 100 and an appliance box 200. An air outlet is formed at the top end of the casing 100, and the electrical box 200 is installed in the casing 100. Air enters from the condenser gaps on the left and lower sides of the casing 100, flows upward by the fan and flows out from the air outlet on the top.

Referring to fig. 1, an electrical box 200 is mounted on a right side wall of a case 100. When the air flows upward along the sidewall of the housing 100, the air collides with the bottom plate of the electrical box 200 and is bent, and the air flows outward along the bottom plate of the electrical box 200 to form a large stagnation vortex, which may cause heat not to flow out effectively.

In view of this, the embodiment of the present invention provides an electrical box 200. Referring to fig. 2-4, in some embodiments, the electrical enclosure 200 includes an electrical enclosure body 210 and a wind deflector 230. The appliance cartridge body 210 includes a bottom plate 280 and a top plate 290. The bottom plate 280 is provided with an air inlet 270. The top plate 290 is provided with an air outlet 260. The air deflector 230 is obliquely disposed on the lower side of the bottom plate 280, and a projection of the air deflector 230 on the bottom plate 280 covers at least a portion of the air inlet hole 270.

The inclined air deflector 230 guides the flow direction of air, and the air enters the gap between the air deflector 230 and the bottom plate 280 along the inclined air deflector 230 and enters the electrical box 200 through the air inlet 270, so that the fluid guided by the air deflector 230 into the electrical box has a certain included angle with the horizontal direction, the eddy current is reduced, and a through heat dissipation path is formed from bottom to top, thereby improving the heat dissipation efficiency of the electrical box.

In other embodiments, the air deflection 230 can cover a portion of the air inlet opening 270. This allows a portion of the air flow direction of the air inlet holes 270 to be obliquely arranged, thereby reducing the vortex flow. In other embodiments, the air deflection panel 230 can cover all of the air inlet openings 270. Therefore, the flow direction of all air flows entering the electric box is inclined, the vortex is reduced, and the heat dissipation efficiency is improved. The air guide plate 230 completely covers the air inlet hole 270 and can also play a role of water prevention. Specifically, the edge of the air deflection panel 230 can extend beyond the footprint of the plurality of air inlet openings 270.

In some embodiments, the appliance cartridge 200 also includes a partition 240. The partition 240 is provided in the inner cavity of the appliance cartridge main body 210 and divides the inner cavity into the first cavity 211 and the second cavity 212 in the thickness direction. The partition 240 is provided with a vent hole 241. Air of the first cavity 211 may enter the second cavity 212 through the vent 241 to dissipate heat of components in the second cavity 212.

In some embodiments, referring to fig. 4, a plurality of air inlet openings 270 are provided in the base plate 280. The number of the plurality of air inlet openings 270 is greater in the first chamber 211 than in the second chamber 212. The amount of air entering the first chamber 211 is greater than the amount of air entering the second chamber 212. The components are arranged according to the airflow direction in the electrical box, the component with large heat productivity is arranged in the first cavity 211, and the component with small heat productivity is arranged in the second cavity 212. For example, the electrical box includes at least two components disposed in the electrical box body 210, the at least two components including a first component and a second component, wherein a heat generation amount of the first component is greater than a heat generation amount of the second component, the first component is disposed in the first cavity 211, and the second component is disposed in the second cavity 212.

Specifically, the electrical box 200 further includes a compressor driving board and a main control board. The compressor driving plate is arranged in the first cavity 211, and the main control plate is arranged in the second cavity 212.

In other embodiments, a plurality of air inlet openings 270 are provided in the bottom plate, and are located in the first cavity 211. Since the air inlet holes are all opened in the first cavity 211, a through air duct in the vertical direction is formed between the air inlet holes and the air outlet holes on the top plate 290. And the air fluid flow rate of the first cavity 211 is great, the pressure is relatively small, a transverse pressure difference is formed between the first cavity 211 and the second cavity 212 inside the electrical box, the air fluid flows into the second cavity 212 from the first cavity 211 of the electrical box through the vent hole 241 of the partition plate 240, and flows out along the fixed wall surface to form a three-dimensional air duct, so that the heat dissipation performance is enhanced.

In some embodiments, a plurality of air inlet openings 270 are disposed adjacent to the partition 240. A plurality of air inlet openings 270 are provided adjacent to the partition 240 so that the air flow of the first chamber 211 can directly enter the second chamber 212 through the air inlet openings 241 of the partition 240.

In the flow field of the whole machine, the air channel in the electrical box 200 is similar to the external wind field from bottom to top, if the air outlet is parallel to the wall surface of the air inlet direction, the fluid can impact on the upper side of the electrical box due to the inertia effect and generate deflection rebound, so that the heat inside the electrical box can not be effectively dissipated. Thus, in some embodiments, the top plate 290 is disposed obliquely relative to the bottom plate 280.

Specifically, the included angle between the top plate 290 and the horizontal plane is between 15 ° and 30 °. The air outlet 260 on the top plate 220 is a long round hole, and the sharp edge problem can be effectively reduced due to the shape. The top cover 220 with a folded edge is arranged on the upper part of the top plate 290 of the electrical box, a space is arranged between the top cover 220 and the top plate 290, and the outlet air of the air outlet 260 can flow out through the space. The top cover 220 has both air guiding and waterproof functions, can meet the waterproof requirement, and can increase the air output by one time. Tests prove that the temperature of the elements mainly relying on convection heat dissipation in the electrical appliance box is reduced by 2-3 ℃.

The structure of the electrical box according to an embodiment of the present invention will be described in detail with reference to fig. 1 to 7.

As shown in fig. 1, in the present embodiment, the outdoor unit of an air conditioner includes a casing 100 and an electric box 200. The air outlet of the housing 100 is located at the top end. Fig. 1 shows that the overall flow field direction of the outdoor unit of the air conditioner is from bottom to top. According to this feature, both the bottom plate and the top plate of the electrical box 200 are provided with openings, the bottom plate 280 is provided with air inlet holes 270, and the top plate 290 is provided with air outlet holes 260, so that the air duct inside the electrical box 200 can be made to enter and exit from the bottom and the top similarly to the whole machine.

In order to satisfy the waterproof requirement and the wind direction guiding function, an inclined air deflector 230 is disposed outside the air inlet hole of the bottom plate of the electrical box 200 to guide the direction of the air flow entering the interior of the electrical box after bending.

As shown in fig. 2, the electric box 200 is compact, and generally has two chambers in the left-right direction, forming a layer in the thickness direction.

A plurality of air inlet holes 270 are provided on the bottom plate of the electric appliance case. There are various embodiments for the arrangement of the air inlet holes. In one embodiment, a plurality of air inlet openings 270 are provided on both sides of the partition 240, and the number of air inlet openings 270 in the first chamber 211 is greater than the number of air inlet openings 270 in the second chamber 212.

In this regard, the electrical box is laid out according to the direction of the air flow inside the electrical box. The fluid introduced into the electrical box after being guided by the air deflector 230 forms a certain included angle with the horizontal direction, as shown in fig. 6, the fluid is divided into an upper air flow and a lower air flow by the partition 240 in the electrical box, and the flow rate of the first cavity 211 is relatively large. Therefore, a press driving board or the like having a large heat generation amount should be disposed in the first cavity 211, and a main board such as a main control board should be disposed in the second cavity 212, so that the heat dissipation capability is improved.

In another embodiment, a plurality of air inlet openings 270 are each disposed within the first cavity 211 of the electronics box 200 and proximate to the partition 240. The air inlet holes 270 are uniformly distributed small circular holes, which can break up the fluid entering the electrical box to form small upward-flowing eddy currents, thereby enhancing the heat convection efficiency.

In this regard, the electrical box is arranged according to the direction of the airflow inside the electrical box, and as the air inlet holes are all formed in the first cavity 211, a vertical air duct is formed between the air inlet holes and the air outlet holes of the top plate. And the air fluid flow rate of the first cavity 211 is relatively large, the pressure is relatively small, a transverse pressure difference is formed between the first cavity 211 and the second cavity 212 inside the electrical box, the air fluid flows into the second cavity 212 from the first cavity 211 of the electrical box through a ventilation gap on the partition plate 240, and then flows out along the fixed wall surface to form a three-dimensional air duct, so that the heat dissipation performance is enhanced.

For the position layout of the main control board, as shown in fig. 7, the reactor 300 is arranged near the air inlet in the electrical box, the reactor 300 is shaped as a blunt body, the resistance is large, two reactors 300 are placed in parallel to gather the air fluid scattered by the air inlet in the middle, the left reactor is taken as an example, the gathered air fluid flows upwards and towards the center on the right wall surface of the reactor, and then the air is guided to the fin radiator 600 and flows out of the electrical box from the air outlet at the top, on the left side of the reactor, due to the existence of the windward angle, the air fluid is guided to the electrolytic capacitor 500 of the drive board 400, the electrolytic capacitors 500 are arranged longitudinally according to the diagram, the blunt body area can be reduced, the occurrence of large eddy current can be avoided, the air can smoothly flow upwards out of the electrical box, and the performance of the air-cooled radiator can be improved.

And distributing the fluid flow of the two cavities of the electrical box according to the distance between the air inlet hole and the left panel of the electrical box. And the components with larger heat productivity are distributed at the direct blowing position of the first cavity. And the distance between the component with larger heat productivity and the bottom plate of the electrical box and the distance between the air inlet and the left panel of the electrical box need to satisfy the trigonometric function relation. Specifically, assuming that the distance between the air inlet and the left panel of the electrical box is d, and the included angle between the speed direction of the air flow entering the electrical box from the air inlet and the horizontal direction is a, the distance L between the component with the larger heat generation amount and the bottom plate of the electrical box is d.

In conclusion, the electrical box of the embodiment of the present invention is provided with the inclined air guiding plate at the lower side of the bottom plate, so as to guide the direction of the small vortex fluid which is scattered by the air inlet hole and enters the interior of the electrical box, thereby improving the heat dissipation efficiency. And the upper part and the lower part of the electrical box are provided with holes, the air deflector is used for guiding air fluid to enter and exit, and the complete machine flow field is matched to form a complete three-dimensional through air duct, so that the fluid flow path is complete, and dust accumulation can be effectively prevented.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.

Claims

1. An electrical box, comprising:

the electric appliance box comprises an electric appliance box main body (210) and a heat insulation structure, wherein the electric appliance box main body comprises a bottom plate (280) and a top plate (290), a plurality of air inlet holes (270) are formed in the bottom plate (280), and air outlet holes (260) are formed in the top plate (290); and

the air deflector (230) is obliquely arranged on the lower side of the bottom plate (280), and the projection of the air deflector (230) on the bottom plate (280) covers at least part of the air inlet hole (270).

2. The electrical box according to claim 1, further comprising a partition plate (240), the partition plate (240) being disposed in the inner cavity of the electrical box main body (210) and dividing the inner cavity into a first cavity (211) and a second cavity (212) in a thickness direction, the partition plate (240) being provided with a vent hole (241).

3. The appliance cartridge of claim 2, wherein the plurality of air inlet openings (270) are greater in number in the first chamber (211) than in the second chamber (212).

4. The electrical box according to claim 3, further comprising at least two components disposed within the electrical box body (210), the at least two components including a first component and a second component, the first component having a greater heat generation than the second component, the first component disposed in the first cavity (211), the second component disposed in the second cavity (212).

5. The appliance box of claim 4, wherein the first component comprises a compressor drive board and the second component comprises a main control board.

6. The appliance cartridge of claim 2, wherein the plurality of air inlet openings are located in the first cavity (211).

7. The appliance cartridge of claim 6, wherein the plurality of air inlet openings are disposed adjacent to the partition (240).

8. The appliance cartridge according to any of the claims 1 to 7, characterized in that the top plate (290) is arranged obliquely with respect to the bottom plate (280).

9. The appliance cartridge of claim 8, wherein the top plate (290) and the bottom plate (280) are angled in the range of 15 ° to 30 °.

10. The electrical box according to any of claims 1 to 7, wherein the air outlet (260) is an oblong hole.

11. An outdoor unit of an air conditioner, comprising a casing (100) and the electric box (200) of any one of claims 1 to 10, wherein an air outlet is formed at a top end of the casing (100), and the electric box (200) is installed in the casing (100).