CN111698893A - Heat radiation structure, electrical apparatus box and air conditioner - Google Patents

Abstract

The invention provides a heat dissipation structure, an electrical box and an air conditioner. The heat dissipation structure includes: a connecting plate, the connecting plate has a first extending end and a second extending end oppositely arranged along a first preset direction; a heat dissipation assembly is arranged on the connecting plate, and the heat dissipation assembly includes a first fin assembly and a second fin a fin assembly, the first fin assembly and the second fin assembly are arranged at intervals along a second preset direction to form a heat dissipation gap; wherein the second preset direction and the first preset direction are arranged at a preset angle; the first fin The fin assembly includes a plurality of first fins arranged at intervals, and each first fin is inclined relative to the second preset direction; the second fin assembly includes a plurality of second fins arranged at intervals, and each second fin is opposite to the first fin. Two preset directional tilt settings. The heat dissipation structure of the present invention solves the problem of poor heat dissipation effect of the heat dissipation structure in the prior art.

Description

Heat dissipation structure, electrical box and air conditioner

technical field

The present invention relates to the field of air-conditioning equipment, in particular, to a heat dissipation structure, an electrical box and an air conditioner.

Background technique

At present, most of the heat dissipation methods of electrical boxes use metal heat sinks and air for convection heat dissipation. However, when the outdoor ambient temperature is high, the effect of this heat dissipation method is poor.

In addition, there is a heat dissipation method of the electrical box in the prior art, which is to reduce the calorific value of the electrical box by reducing the operating frequency of the compressor, thereby ensuring the normal operation of the air conditioner. This not only affects the normal operation of the air conditioner, but also the outdoor temperature is too high, which greatly affects the cooling effect of the air conditioner.

In addition, there is also a refrigerant cooling radiator in the prior art. The refrigerant cooling radiator connects the inlet and outlet of the heat exchange tube with the refrigerant outlet and the suction port, respectively, and a part of the refrigerant is provided by the condenser into the heat exchange tube. To cool the motherboard components. However, the refrigerant cooling radiator separates part of the refrigerant in the air conditioning system, which reduces the capacity and energy efficiency of the air conditioning system, and the reliability of the air conditioning system is difficult to guarantee, and the implementation method is difficult and the reliability is low.

SUMMARY OF THE INVENTION

The main purpose of the present invention is to provide a heat dissipation structure, an electrical box and an air conditioner to solve the problem of poor heat dissipation effect of the heat dissipation structure in the prior art.

In order to achieve the above object, according to an aspect of the present invention, a heat dissipation structure is provided, comprising: a connecting plate, the connecting plate has a first extending end and a second extending end oppositely arranged along a first preset direction; a heat dissipating assembly, provided with On the connecting plate, the heat dissipation assembly includes a first fin assembly and a second fin assembly, and the first fin assembly and the second fin assembly are spaced apart along a second preset direction to form a heat dissipation gap; wherein the second preset The direction and the first preset direction are set at a preset angle; the first fin assembly includes a plurality of first fins arranged at intervals, each first fin is inclined relative to the second preset direction, and each first fin is along the The inclined direction has a first heat dissipation end and a second heat dissipation end oppositely arranged, the second heat dissipation end is located on the side of the first heat dissipation end away from the first extension end, and the second heat dissipation end is located at the side of the first heat dissipation end close to the heat dissipation gap; The second fin assembly includes a plurality of second fins arranged at intervals, each second fin is inclined relative to the second preset direction, and each second fin has a third heat dissipation end and a fourth oppositely disposed along the inclined direction. The heat dissipation end, the fourth heat dissipation end is located on the side of the third heat dissipation end away from the first extension end, and the fourth heat dissipation end is located at the side of the third heat dissipation end close to the heat dissipation gap.

Further, a spacer plate is arranged in the heat dissipation gap, and the spacer plate is connected with the connecting plate.

Further, the spacer plate is perpendicular to the connecting plate, and the spacer plate extends from the first extension end to the second extension end.

Further, the first fin assembly and the second fin assembly are mirror image structures with the first symmetry plane of the spacer plate as the mirror image plane; The directions are staggered; wherein, the first symmetry plane is perpendicular to the second preset direction.

Further, the acute angle included between each first fin and the second preset direction and the acute angle included between each second fin and the second preset direction are the included angle a, and the value range of the included angle a is 30°. to 60°; wherein, the acute angle between each first fin and the second preset direction is equal to the acute angle between each second fin and the second preset direction.

Further, the plurality of first fins are arranged in parallel; and/or, the plurality of second fins are arranged in parallel.

Further, the connecting plate is a rectangular plate, and the width of the connecting plate along the second preset direction is W; the distance between two adjacent first fins and the distance between two adjacent second fins are both distances d, the value range of the distance d is W/20≤d≤W/10; wherein, the distance between two adjacent first fins is equal to the distance between two adjacent second fins.

Further, one end of each first fin away from the heat dissipation gap extends to the edge of the connecting plate; one end of each second fin away from the heat dissipation gap extends to the edge of the connecting plate.

Further, the first fins and the second fins are both flat plate structures; or, along the inclination direction of the first fins, the first fins are serrated; along the inclination direction of the second fins, the second fins are or, along the inclination direction of the first fins, the first fins are wavy; along the inclination direction of the second fins, the second fins are wavy.

Further, the first preset direction is a vertical direction, and the first preset direction and the second preset direction are perpendicular.

According to another aspect of the present invention, an electrical box is provided, comprising a main board and a heat dissipation structure, the heat dissipation structure is arranged on the main board, a connecting plate of the heat dissipation structure is connected to the main board, and the heat dissipation structure is the above heat dissipation structure.

According to yet another aspect of the present invention, an air conditioner is provided, including an electrical box, and the electrical box is the aforementioned electrical box.

The heat dissipation structure of the present invention includes a connecting plate and a heat dissipation assembly disposed on the connecting plate, the heat dissipation assembly includes a first fin assembly and a second fin assembly, and the first fin assembly and the second fin assembly are along a second preset direction spaced to form a heat dissipation gap; and each first fin of the first fin assembly has a first heat dissipation end and a second heat dissipation end oppositely arranged along the inclined direction thereof, and the second heat dissipation end is located at the first heat dissipation end and extends away from the first heat dissipation end. One side of the end, the second heat dissipation end is located on the side of the first heat dissipation end close to the heat dissipation gap; each second fin of the second fin assembly has a third heat dissipation end and a fourth heat dissipation end arranged oppositely along its inclined direction, the first heat dissipation end The four heat dissipation ends are located on the side of the third heat dissipation end away from the first extension end, and the fourth heat dissipation end is located at the side of the third heat dissipation end close to the heat dissipation gap. The structure of the first fin assembly and the second fin assembly of the heat dissipation assembly is similar to the vein shape of leaves, the heat dissipation structure is vertically arranged, and when the hot air flows from the second extension end to the first extension end, a secondary circulation is formed The airflow disturbance is stronger, thereby enhancing the heat exchange effect, thereby making the heat dissipation effect of the heat dissipation structure better; in addition, the heat dissipation structure dissipates heat evenly and does not form heat accumulation.

Description of drawings

The accompanying drawings forming a part of the present application are used to provide further understanding of the present invention, and the exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the attached image:

Fig. 1 shows the perspective view of the first embodiment of the heat dissipation structure according to the present invention;

Fig. 2 shows the front view of the first embodiment of the heat dissipation structure according to the present invention;

Fig. 3 shows the top view of the first embodiment of the heat dissipation structure according to the present invention;

Fig. 4 shows the perspective view of the second embodiment of the heat dissipation structure according to the present invention;

Fig. 5 shows the front view of the second embodiment of the heat dissipation structure according to the present invention;

6 shows a perspective view of a conventional heat dissipation structure;

FIG. 7 shows a front view of a conventional heat dissipation structure.

Wherein, the above-mentioned drawings include the following reference signs:

10, connecting plate; 11, first extension end; 12, second extension end; 20, heat dissipation assembly; 30, spacer plate; 40, first fin assembly; 41, first fin; 411, first heat dissipation end 412, the second heat dissipation end; 50, the second fin assembly; 51, the second fin; 511, the third heat dissipation end; 512, the fourth heat dissipation end; 60, the heat dissipation gap; 70, the heat dissipation plate.

Detailed ways

It should be noted that the embodiments in the present application and the features of the embodiments may be combined with each other in the case of no conflict. The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

It should be noted that the terminology used herein is for the purpose of describing specific embodiments only, and is not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural as well, furthermore, it is to be understood that when the terms "comprising" and/or "including" are used in this specification, it indicates that There are features, steps, operations, devices, components and/or combinations thereof.

The present invention provides a heat dissipation structure, please refer to FIG. 1 to FIG. 5 , including: a connecting plate 10, the connecting plate 10 has a first extending end 11 and a second extending end 12 oppositely arranged along a first preset direction; a heat dissipation component 20, disposed on the connecting plate 10, the heat dissipation assembly 20 includes a first fin assembly 40 and a second fin assembly 50, the first fin assembly 40 and the second fin assembly 50 are spaced along the second preset direction to form The heat dissipation gap 60; wherein, the second preset direction and the first preset direction are arranged at a preset angle; the first fin assembly 40 includes a plurality of first fins 41 arranged at intervals, and each first fin 41 is opposite to the first fin 41. The first fins 41 are inclined in two predetermined directions, and each of the first fins 41 has a first heat dissipation end 411 and a second heat dissipation end 412 disposed opposite to each other along the inclined direction. The second heat dissipation end 412 is located at the first heat dissipation end 411 away from the first extension end 11 The second heat dissipation end 412 is located on the side of the first heat dissipation end 411 close to the heat dissipation gap 60; the second fin assembly 50 includes a plurality of second fins 51 arranged at intervals, and each second fin 51 is opposite to the second fin 51. The predetermined direction is inclined and arranged, and each second fin 51 has a third heat dissipation end 511 and a fourth heat dissipation end 512 arranged oppositely along its inclined direction, and the fourth heat dissipation end 512 is located at the third heat dissipation end 511 away from the first extension end 11 . On one side, the fourth heat dissipation end 512 is located on the side of the third heat dissipation end 511 close to the heat dissipation gap 60 .

The heat dissipation structure of the present invention includes a connecting plate 10 and a heat dissipation assembly 20 disposed on the connecting plate 10. The heat dissipation assembly 20 includes a first fin assembly 40 and a second fin assembly 50. The first fin assembly 40 and the second fin assembly The components 50 are spaced along the second preset direction to form the heat dissipation gap 60; and each of the first fins 41 of the first fin assembly 40 has oppositely disposed first heat dissipation ends 411 and second heat dissipation ends 412 along the inclined direction thereof, The second heat dissipation end 412 is located on the side of the first heat dissipation end 411 away from the first extension end 11 , and the second heat dissipation end 412 is located at the side of the first heat dissipation end 411 close to the heat dissipation gap 60 ; The fin 51 has oppositely disposed third heat dissipation end 511 and fourth heat dissipation end 512 along its inclined direction. The third heat dissipation end 511 is close to one side of the heat dissipation gap 60 . The structure of the first fin assembly 40 and the second fin assembly 50 of the heat dissipation assembly 20 is similar to the vein shape of leaves, and the heat dissipation structure is arranged vertically, when the hot air flows from the second extension end 12 to the first extension end 11 , forming a stronger secondary circulation airflow disturbance, thereby strengthening the heat exchange effect, and thus making the heat dissipation effect of the heat dissipation structure better; and the heat dissipation structure dissipates heat evenly, and does not form heat accumulation.

The traditional heat dissipation structure is shown in Figures 6 and 7. The heat dissipation structure is placed vertically, and multiple fins extend in the vertical direction, and are affected by the upward hot air. The closer to the top, the higher the temperature and the worse the heat dissipation effect. The traditional heat dissipation structure is simulated and studied. The temperatures of the four temperature measurement points A, B, C and D in Figure 6 and Figure 7 are 55.2°C, 56.5°C, 57.6°C, and 59.3°C, respectively. The structure is simulated and studied, and four temperature measurement points A, B, C and D are taken in the same position as the traditional heat dissipation structure. 56°C, 55.8°C, it can be seen that the temperatures of the four temperature measurement points A, B, C and D in this application are relatively uniform, and the temperature of the temperature measurement point D is about 3.5°C lower than that of the traditional heat dissipation structure. On the basis of the components, only by changing the arrangement of the fins, the maximum temperature can be reduced by 3.5 °C, which is very effective and strengthens the heat exchange effect. The size of the heat dissipation plate 70 of the conventional heat dissipation structure is the same as that of the connection plate 10 of the present application.

In this embodiment, a spacer plate 30 is disposed in the heat dissipation gap 60 , and the spacer plate 30 is connected to the connecting plate 10 . This setting improves the heat dissipation effect and avoids the accumulation of heat in the heat dissipation gap.

In this embodiment, the spacer plate 30 is perpendicular to the connecting plate 10 , and the spacer plate 30 extends from the first extension end 11 to the second extension end 12 .

In one embodiment, as shown in FIG. 1 and FIG. 2 , the first fin assembly 40 and the second fin assembly 50 are mirror image structures with the first symmetry plane of the spacer plate 30 as the mirror image plane. Wherein, the first symmetry plane is perpendicular to the second preset direction. Specifically, both the spacer plate 30 and the connecting plate 10 are vertically arranged, the spacer plate 30 is a rectangular plate, and the spacer plate 30 is formed by stacking a plurality of rectangular planes perpendicular to the second preset direction; wherein, the first symmetry plane is a plurality of The middle rectangular plane among the rectangular planes.

In another embodiment not shown in the drawings, the plurality of first fins 41 and the plurality of second fins 51 are staggered in the first predetermined direction.

Optionally, the acute angle between each first fin 41 and the second preset direction and the acute angle between each second fin 51 and the second preset direction are the included angle a, and the value range of the included angle a is is 30° to 60°; wherein, the acute angle between each first fin 41 and the second preset direction is equal to the acute angle between each second fin 51 and the second preset direction. Such an arrangement makes the heat dissipation effect better and the heat dissipation effect more uniform.

Preferably, a=60°. This setting makes the heat dissipation effect the best, and the heat dissipation effect is more uniform.

In this embodiment, the plurality of first fins 41 are arranged in parallel; and/or, the plurality of second fins 51 are arranged in parallel.

Optionally, the connecting plate 10 is a rectangular plate, and the width of the connecting plate 10 along the second preset direction is W; the distance between two adjacent first fins 41 and between two adjacent second fins 51 The distances are the distance d, and the value range of the distance d is W/20≤d≤W/10; wherein, the distance between two adjacent first fins 41 is equal to the distance between two adjacent second fins 51 spacing between. Such an arrangement makes the heat dissipation effect of the heat dissipation structure better.

In this embodiment, one end of each first fin 41 away from the heat dissipation gap 60 extends to the edge of the connecting plate 10 ; one end of each second fin 51 away from the heat dissipation gap 60 extends to the edge of the connecting plate 10 .

In the first embodiment, the first fins 41 and the second fins 51 are both flat plate structures.

In the second embodiment, as shown in FIGS. 4 and 5 , along the inclination direction of the first fins 41 , the first fins 41 are serrated; along the inclination direction of the second fins 51 , the second fins 51 is jagged. Such an arrangement increases the heat dissipation area.

In the third embodiment, along the inclination direction of the first fins 41 , the first fins 41 are in a wave shape; along the inclination direction of the second fins 51 , the second fins 51 are in a wave shape. Such an arrangement increases the heat dissipation area.

In this embodiment, the first preset direction and the second preset direction are perpendicular. Specifically, the heat dissipation structure is placed vertically, the first preset direction is the vertical direction, and the second preset direction is the horizontal direction.

The present invention also provides an electrical box, which includes a main board and a heat dissipation structure, the heat dissipation structure is arranged on the main board, the connecting plate 10 of the heat dissipation structure is connected to the main board, and the heat dissipation structure is the heat dissipation structure of the above embodiment. The heat dissipation effect of the heat dissipation structure is better, and the cooling of the main board and the electronic components in the electrical box is more obvious.

The present invention also provides an air conditioner, including an electrical box, wherein the electrical box is the electrical box of the above embodiment.

Specifically, during the operation of the air conditioner, the temperature of the modules in the electrical box is reduced by the above-mentioned heat dissipation structure, the heat exchange effect is enhanced, and the capacity and energy efficiency of the entire air conditioner is not affected while the temperature is lowered; The air conditioner has high reliability and does not need to be reduced in frequency (reduce energy efficiency) to achieve reliability. The above-mentioned heat dissipation structure is independent of the four major components of the air conditioner, and does not separate part of the refrigerant in the condenser. The reliability is high, the installation is simple and convenient, and the manufacturing cost is not increased, and the reliability is extremely high. Evenly dissipates heat and does not form heat buildup on top.

From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects:

The heat dissipation structure of the present invention includes a connecting plate 10 and a heat dissipation assembly 20 disposed on the connecting plate 10. The heat dissipation assembly 20 includes a first fin assembly 40 and a second fin assembly 50. The first fin assembly 40 and the second fin assembly The components 50 are spaced along the second preset direction to form the heat dissipation gap 60; and each of the first fins 41 of the first fin assembly 40 has oppositely disposed first heat dissipation ends 411 and second heat dissipation ends 412 along the inclined direction thereof, The second heat dissipation end 412 is located on the side of the first heat dissipation end 411 away from the first extension end 11 , and the second heat dissipation end 412 is located at the side of the first heat dissipation end 411 close to the heat dissipation gap 60 ; The fin 51 has oppositely disposed third heat dissipation end 511 and fourth heat dissipation end 512 along its inclined direction. The third heat dissipation end 511 is close to one side of the heat dissipation gap 60 . The structure of the first fin assembly 40 and the second fin assembly 50 of the heat dissipation assembly 20 is similar to the vein shape of leaves, and the heat dissipation structure is arranged vertically, when the hot air flows from the second extension end 12 to the first extension end 11 , forming a stronger secondary circulation airflow disturbance, thereby strengthening the heat exchange effect, and thus making the heat dissipation effect of the heat dissipation structure better; and the heat dissipation structure dissipates heat evenly, and does not form heat accumulation.

It should be noted that the terms "first", "second", etc. in the description and claims of the present application and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific sequence or sequence. It is to be understood that data so used may be interchanged under appropriate circumstances such that the embodiments of the application described herein can, for example, be practiced in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having" and any variations thereof, are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those expressly listed Rather, those steps or units may include other steps or units not expressly listed or inherent to these processes, methods, products or devices.

For ease of description, spatially relative terms, such as "on", "over", "on the surface", "above", etc., may be used herein to describe what is shown in the figures. The spatial positional relationship of one device or feature shown to other devices or features. It should be understood that 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 the device in the figures is turned over, elements described as "above" or "over" other devices or features would then be oriented "below" or "over" the other devices or features under other devices or constructions". Thus, the exemplary term "above" can encompass both an orientation of "above" and "below." The device may also be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptions used herein interpreted accordingly.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims (12)

1. A heat dissipation structure, characterized in that, comprising: a connecting plate (10), the connecting plate (10) has a first extending end (11) and a second extending end (12) arranged oppositely along the first preset direction; A heat dissipation assembly (20) is provided on the connecting plate (10), the heat dissipation assembly (20) includes a first fin assembly (40) and a second fin assembly (50), the first fin assembly (40) and the second fin assemblies (50) are spaced apart along a second preset direction to form a heat dissipation gap (60); wherein the second preset direction and the first preset direction are preset Angle setting; The first fin assembly (40) includes a plurality of first fins (41) arranged at intervals, each of the first fins (41) is inclined relative to the second preset direction, and each of the first fins (41) is inclined relative to the second preset direction. The fins (41) have oppositely disposed first heat dissipation ends (411) and second heat dissipation ends (412) along their inclined directions, and the second heat dissipation ends (412) are located at the first heat dissipation ends (411) away from all one side of the first extension end (11), the second heat dissipation end (412) is located on the side of the first heat dissipation end (411) close to the heat dissipation gap (60); The second fin assembly (50) includes a plurality of second fins (51) arranged at intervals, each of the second fins (51) is inclined relative to the second preset direction, and each of the second fins (51) is inclined relative to the second preset direction. The fins (51) have oppositely disposed third heat dissipation ends (511) and fourth heat dissipation ends (512) along the inclined direction thereof, and the fourth heat dissipation ends (512) are located at the third heat dissipation ends (511) away from all the One side of the first extension end (11), the fourth heat dissipation end (512) is located on the side of the third heat dissipation end (511) close to the heat dissipation gap (60). 2 . The heat dissipation structure according to claim 1 , wherein a partition plate ( 30 ) is provided in the heat dissipation gap ( 60 ), and the partition plate ( 30 ) is connected with the connection plate ( 10 ). 3 . 3. The heat dissipation structure according to claim 2, wherein the spacer plate (30) is perpendicular to the connecting plate (10), and the spacer plate (30) extends from the first extension end (11). ) extends to the second extension end (12). 4. The heat dissipation structure according to claim 3, characterized in that, the first fin assembly (40) and the second fin assembly (50) are in a first symmetry of the partition plate (30) a mirrored structure whose surface is a mirrored surface; or, a plurality of the first fins (41) and a plurality of the second fins (51) are staggered in the first preset direction; Wherein, the first symmetry plane is perpendicular to the second preset direction. 5. The heat dissipation structure according to claim 1, wherein the acute angle between each of the first fins (41) and the second preset direction is the same as the angle between each of the second fins (51) and the second preset direction. The acute angle included in the second preset direction is the included angle a, and the value range of the included angle a is 30° to 60°; wherein, each of the first fins (41) and the second preset The acute angle of the direction is equal to the acute angle of each of the second fins (51) and the second preset direction. 6. The heat dissipation structure according to claim 1, wherein a plurality of the first fins (41) are arranged in parallel; and/or a plurality of the second fins (51) are arranged in parallel. 7. The heat dissipation structure according to claim 6, wherein the connecting plate (10) is a rectangular plate, and the width of the connecting plate (10) along the second preset direction is W; The distance between the first fins (41) and the distance between two adjacent second fins (51) are both the distance d, and the value range of the distance d is W/20≤d≤ W/10; wherein, the distance between two adjacent first fins (41) is equal to the distance between two adjacent second fins (51). 8. The heat dissipation structure according to claim 1, characterized in that, one end of each of the first fins (41) away from the heat dissipation gap (60) extends to the edge of the connecting plate (10); each One end of the second fin (51) away from the heat dissipation gap (60) extends to the edge of the connecting plate (10). 9. The heat dissipation structure according to any one of claims 1 to 8, wherein the first fins (41) and the second fins (51) are both flat plate structures; or Along the inclination direction of the first fins (41), the first fins (41) are serrated; along the inclination direction of the second fins (51), the second fins (51) jagged; or Along the inclination direction of the first fins (41), the first fins (41) are wavy; along the inclination direction of the second fins (51), the second fins (51) wavy. 10. The heat dissipation structure according to any one of claims 1 to 8, wherein the first preset direction is a vertical direction, and the first preset direction and the second preset direction are different from each other. vertical. 11. An electrical box, characterized in that it comprises a main board and a heat dissipation structure, the heat dissipation structure is arranged on the main board, a connecting plate (10) of the heat dissipation structure is connected to the main board, and the heat dissipation structure is the right The heat dissipation structure of any one of claims 1 to 10 is required. 12 . An air conditioner comprising an electrical box, wherein the electrical box is the electrical box of claim 11 .

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