CN216775351U - Heat radiation structure and have its electrical equipment - Google Patents

Abstract

The utility model provides a heat dissipation structure and electrical equipment with the same, relates to the technical field of heat dissipation, and solves the technical problems that components are not cooled by the existing heat dissipation mode for cooling a heat radiator, and the heat dissipation effect is not ideal. The heat dissipation structure comprises a radiator, a heat source and a mounting surface of the heat source, wherein an airflow channel is arranged between the heat source and the mounting surface, and external air can flow through the airflow channel in a convection mode to take away heat of the heat source under the driving of negative pressure inside the equipment, so that circulation of air circulation is formed, the temperature of components is reduced, and the heat dissipation effect is good; the operation stability and reliability of the electrical equipment are improved after the heat dissipation structure is adopted.

Description

Heat radiation structure and have its electrical equipment

Technical Field

The utility model relates to the technical field of heat dissipation, in particular to a heat dissipation structure and electrical equipment with the same.

Background

Because the frequency conversion controller has a plurality of components and parts, and the temperature rise of each component and part is higher, the existing common cooling method carries out auxiliary heat dissipation and cooling by adding a radiator on the controller.

Most of the radiators in the existing frequency conversion controllers are arranged on the outdoor unit (side), and air cooling heat dissipation is performed through an air duct or a refrigerant pipe is additionally arranged on the surface of the radiator to dissipate heat through a low-temperature refrigerant. The radiator is cooled by the aid of auxiliary parts, and the radiator is high in cost and complex in structure. As shown in fig. 12, in the first heat dissipation method, the entire electric component box is placed outside the room, and the heat sink is exposed to the outside alone, and the heat is dissipated by the air outside the room. As shown in fig. 13, in another heat dissipation method, a low-temperature refrigerant is led out to the heat sink, and the low-temperature refrigerant pipeline is wound around the heat sink for cooling. The scheme can effectively solve the problem of temperature rise of components at high outdoor temperature, but has the advantages of complex structure, high cost and low reliability.

The heat dissipation methods only address the symptoms, but not the root causes, and the heat generated by the components is not cooled. Finally, the temperature rise of the components exceeds the standard, the reliability of the components becomes lower, the frequency of the whole machine is reduced, the refrigeration effect becomes worse, and even the whole machine cannot normally operate.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a heat dissipation structure and electrical equipment with the same, and at least solves the technical problems that components are not cooled by the existing heat dissipation mode for cooling a heat sink in the prior art, and the heat dissipation effect is not ideal. The technical effects that can be produced by the preferred technical scheme in the technical schemes provided by the utility model are described in detail in the following.

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model provides a heat dissipation structure which comprises a heat radiator, a heat source and a mounting surface of the heat source, wherein an airflow channel is arranged between the heat source and the mounting surface, and external air can flow through the airflow channel in a convection mode to take away heat of the heat source and/or the heat radiator under the driving of negative pressure in equipment. A circulation of the air circulation is formed,

optionally, the heat source is mounted spaced from the mounting surface to form the airflow channel.

Optionally, the heat source is an electrical component, and the electrical component includes a control main board and a mounting plate for fixing the control main board; the mounting surface is a clapboard.

Optionally, the mounting plate is provided with a plurality of heat dissipation holes.

Optionally, the heat dissipation holes are of a stepped structure and comprise an upper inclined hole section and a lower vertical hole section which are connected and communicated with each other.

Optionally, the electrical component further includes an electrical box and a cover, and the control main board is fixed to the electrical box through the mounting plate; a plurality of pore structures are arranged on the electrical box from top to bottom to form a louver type heat dissipation structure.

Optionally, the louver type heat dissipation structure includes a plurality of sets of vertical blades and inclined blades arranged at intervals, and a porous heat dissipation opening is formed between the vertical blades and the inclined blades.

Optionally, the inclined blade inclines towards the inner side of the electrical box, and an included angle α between the inclined blade and the vertical blade ranges from 10 ° to 30 °.

Optionally, a rib blocking structure is further arranged on the electrical box, the rib blocking structure comprises an upper rib, and the upper rib is located above the louver type heat dissipation structure.

Optionally, both ends of the upper blocking rib extend to the edge of the electrical box and then bend downwards.

Optionally, two concave water guide grooves are further formed in the electrical appliance box, and the two water guide grooves are located below the upper blocking rib and correspond to the end portions of the upper blocking rib respectively.

Optionally, the rib structure comprises a lower rib, and the lower rib is located below the louver type heat dissipation structure.

Optionally, the heat dissipation holes and the heat dissipation ports of the louver type heat dissipation structure are arranged in a staggered manner.

The utility model provides electrical equipment which comprises the heat dissipation structure.

Optionally, the electrical device is an air conditioner.

The utility model provides a heat dissipation structure, which comprises a heat radiator, a heat source and a mounting surface of the heat source, wherein an airflow channel is arranged between the heat source and the mounting surface, and external air can flow through the airflow channel in a convection mode to take away heat of the heat source under the driving of negative pressure inside equipment, so that circulation of air circulation is formed, components are cooled, and the heat dissipation effect is good; the operation stability and reliability of the electrical equipment are improved after the heat dissipation structure is adopted.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic structural view of a related art unitary air conditioner;

fig. 2 is a schematic view illustrating an air circulation principle of a prior art unitary air conditioner;

fig. 3 is a schematic view illustrating an air circulation principle of the unitary air conditioner of the present invention;

fig. 4 is a schematic structural view of an integral type air conditioner according to an embodiment of the present invention;

FIG. 5 is a detail view of the air flow passages and the peripheral structure of the present invention;

FIG. 6 is a schematic view of the position of the components of the electrical enclosure of the present invention;

FIG. 7 is a schematic structural view of the electrical box of the present invention;

FIG. 8 is a schematic view of a fin structure of the heat dissipating structure of the blind of the present invention;

FIG. 9 is a partial cross-sectional structural schematic view of the mounting plate of the present invention;

FIG. 10 is a schematic view of a heat dissipation hole of the present invention;

FIG. 11 is a schematic view showing the connection of the partition, the electrical box, the mounting plate and the heat sink;

FIG. 12 is a prior art appliance box heat dissipation scheme utilizing outdoor air to dissipate heat from a heat sink;

fig. 13 is a scheme of adding a bypass low-temperature refrigerant pipe to radiate heat of a radiator in the prior art.

The specific embodiment of the utility model provides a schematic three-dimensional structure diagram of an integral air conditioner with a heat dissipation structure.

FIG. 1, a heat sink; 2. an air flow channel; 3. a control main board; 4. mounting a plate; 41. heat dissipation holes; 411. A slant hole section; 412. a vertical hole section; 5. a partition plate; 6. an electrical box; 61. a louvered heat dissipation structure; 611. Erecting the blades; 612. a pitch blade; 613. a heat dissipation port; 62. a rib is arranged; 63. a water diversion groove; 64. lower blocking ribs; 7. a cover body.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It should be apparent that the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.

As shown in fig. 1 and 2, a heat dissipation structure of an integral type air conditioner in the prior art is provided, and the heat dissipation effect of electric components of the heat dissipation structure is not ideal. In order to improve the heat dissipation effect, the utility model provides a heat dissipation structure.

Example 1:

the utility model provides a heat dissipation structure which comprises a heat radiator 1, a heat source and a mounting surface of the heat source, wherein an airflow channel 2 is arranged between the heat source and the mounting surface, and external air can flow through the airflow channel 2 in a convection mode to take away heat of the heat source and/or the heat radiator 1 under the driving of negative pressure in equipment.

An airflow channel 2 is arranged between the heat source and the mounting surface, external air can flow through the airflow channel 2 in a convection mode to take away heat of the heat source under the driving of negative pressure inside the equipment (without adding a driving device), circulation of air circulation is formed, the temperature of the components is reduced, and the heat dissipation effect is good. Comparing the schematic diagram 3 of the present invention with the schematic diagram 2 of the prior art, it can be seen that, after the airflow channel 2 is added, the heat of the heat source can be continuously taken away in a circulating manner during the rotation of the device, so as to increase the heat dissipation effect.

As shown in fig. 3 and 4, an electric part as a heat source in the air conditioner is installed to be spaced apart from the partition 5 as a mounting surface, thereby forming the air flow path 2. The electrical components include a control main board 3 and a mounting plate 4 for fixing the control main board 3. The fan produces the negative pressure during operation to form pressure differential in the left and right both sides of electrical apparatus box 6, the air gets into airflow channel 2 from the left side and absorbs the heat of control mainboard 3 and radiator 1 after by the right side outflow, has improved the radiating effect, has guaranteed the reliable work of control mainboard 3 and components and parts.

As an alternative embodiment, as shown in fig. 6 and 9, the mounting plate 4 is provided with a plurality of heat dissipation holes 41 uniformly distributed, so as to further improve the heat dissipation performance.

As an alternative embodiment, the heat dissipation hole 41 has a stepped structure, and includes an upper inclined hole section 411 and a lower vertical hole section 412 connected and communicated with each other, see fig. 10. This kind of step ladder formula structure can play better waterproof effect when guaranteeing the radiating effect.

As an alternative embodiment, as shown in fig. 6, the electrical component further includes an electrical box 6 and a cover 7, and the control main board 3 is fixed to the electrical box 6 through the mounting plate 4; the electrical box 6 is provided with a plurality of pore structures from top to bottom to form a louvered heat dissipation structure 61, as shown in fig. 5-7. The louver type heat dissipation structure 61 has good ventilation and heat dissipation effects while ensuring the mechanical strength of the electrical box 6.

As an alternative embodiment, as shown in fig. 8, the louvered heat dissipating structure 61 includes a plurality of sets of vertical blades 611 and inclined blades 612 which are spaced apart from each other and are integrally formed, and a porous heat dissipating port 613 is formed between the vertical blades 611 and the inclined blades 612, so that the structure is simple.

Specifically, the inclined blade 612 is inclined towards the inner side of the electrical box 6, and the included angle α between the inclined blade 612 and the vertical blade 611 ranges from 10 ° to 30 °. The utility model is inclined to the inner side, which has the function of rain and water resistance; the inclination angle is 10-30 degrees, the ventilation effect is ensured, and water can be prevented from entering the electric appliance box 6.

As an optional implementation manner, a rib structure is further disposed on the electrical box 6, the rib structure includes an upper rib 62, and the upper rib 62 is located above the louver type heat dissipation structure 61, and the upper rib 62 further has a waterproof effect.

As an alternative embodiment, two ends of the upper barrier rib 62 extend to the edge of the electrical box 6 and then bend downward, and this structure guides water to the periphery of the louver type heat dissipation structure 61, so as to improve the overall waterproof performance.

As an optional embodiment, two concave water guiding grooves 63 are further provided on the electrical box 6, and the two water guiding grooves 63 are located below the upper blocking rib 62 and are respectively provided corresponding to the end portions of the upper blocking rib 62. The concave water guide groove 63 can collect water guided by the upper barrier rib 62 to the periphery of the louvered heat dissipation structure 61 and guide the water to flow downward along a specific path.

As an alternative embodiment, the rib structure includes a lower rib 64, and the lower rib 64 is located below the louvered heat dissipation structure 61. The lower barrier rib 64 can block the upwardly splashed liquid, forming a barrier on the lower side of the louvered heat dissipation structure 61. As shown in fig. 7, both ends of the lower rib 64 are bent downward obliquely to guide the water flowing out of the water guide groove 63 to the outside.

As an alternative embodiment, as shown in fig. 11, the heat dissipation holes 41 are arranged in a staggered manner with respect to the heat dissipation ports 613 of the louvered heat dissipation structure 61, so as to further enhance the waterproof performance.

The utility model provides electrical equipment which comprises the heat dissipation structure. The operation stability and reliability of the electrical equipment are improved after the heat dissipation structure is adopted.

Specifically, the electrical appliance in the present embodiment is an air conditioner.

Example 2:

as shown in fig. 1 and 2, the inside and outside blades of the window machine are respectively assembled on two end shafts of the motor, when the motor is operated and the outdoor axial flow blade rotates, a negative pressure cavity is formed inside the window machine, and outside air enters the window machine through the outer cover grille. The radiator 1 radiates heat through the radiator 1 of the electrical box 6, and a circulation of air circulation is formed.

As shown in FIG. 5, the present invention designs a 2-10mm gap between the middle partition board 5 and the electrical box 6 of the integral air conditioner as an auxiliary channel for air circulation. The electrical box 6 is provided with a blocking rib, a shutter type heat dissipation structure and a diversion groove 63, the mounting plate 4 is provided with a heat dissipation hole 41, and the side surface of the outer cover is additionally provided with an air inlet.

When the whole machine works, the axial flow fan blades rotate to suck air, a negative pressure cavity is formed inside the axial flow fan blades, air on the outer side flows into the air inlets on the two sides of the outer cover for supplement, part of air flows through the middle partition plate 5 and the side channel arranged on the electric box 6, the air takes away heat emitted by the main board components in the flowing process of the side channel, and the hot air is sent out of the room through the axial flow fan blades, so that the purpose of cooling the main board components and the radiator 1 is achieved.

In order to realize heat dissipation of the components of the main board, some heat dissipation holes 41 need to be designed on the electrical box 6 and the mounting plate 4.

Set up a manger plate muscle on 6 upper portions of electrical apparatus box, respectively design 1 spill diversion channel 63 below two sides of the left and right sides of manger plate muscle, down draw away water, the heat dissipation window is placed below the manger plate muscle, and heat dissipation window air outlet angle design is 10 ~ 30 degrees, prevents the trickle experiment, rivers to the mainboard on.

A plurality of heat dissipation holes 41 are formed in the mounting plate 4, the holes are designed to be of a stepped structure, the two holes are designed to be of a step shape, the angle is 5-30 degrees better, heat dissipation can be achieved, and water resistance can be achieved. The inclined hole section 411 and the vertical direction form an included angle beta of 5-30 degrees, and the vertical hole section 412 and the vertical direction form an included angle theta of 5-20 degrees.

When mounting panel 4 and electrical apparatus box 6 assemble, the air outlet that sets up these two parts is the dislocation mounting, and the air outlet of mounting panel 4 is on electrical apparatus box 6 air outlet, can effectively prevent like this that water from splashing into the mainboard the inside. As shown in fig. 11.

In summary, in the utility model, the ventilating and heat dissipating channel is designed between the back surface of the component of the electrical box 6 and the front partition plate 5, pressure difference exists between the left side and the right side of the electrical box 6, and air flows from the left side to the right side through the designed side channel, so that heat generated by the radiator 1 and components is taken away, and the effect of cooling is achieved. Most of frequency conversion window type air conditioners in the current market do not have the function of ultra-high temperature long-term stable operation, and the frequency conversion window type air conditioner has a heat dissipation air duct, so that the whole frequency conversion window type air conditioner can be ensured to operate under the ultra-high temperature working condition.

In addition, design a waterproof, radiating structure of dislocation formula on the mounting panel 4 of fixed mainboard, electrical apparatus box 6 designs a waterproof shutter structure, can improve components and parts radiating effect, and protection components and parts can not intake simultaneously.

Moreover, the utility model has the advantages of simple structure, low cost, easy realization and absolute cost advantage compared with other cooling methods with high cost.

In the description of the present invention, it is to be noted that "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing and simplifying the description, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus are not to be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected", and "connected" are to be construed broadly, e.g., as being fixed or detachable or integral; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as appropriate to those of ordinary skill in the art.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and shall cover the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (15)

1. The heat dissipation structure is characterized by comprising a heat sink (1), a heat source and a mounting surface of the heat source, wherein an airflow channel (2) is arranged between the heat source and the mounting surface, and external air can flow through the airflow channel (2) in a convection mode to take away heat of the heat source and/or the heat sink under the driving of negative pressure in equipment.

2. The heat dissipation structure of claim 1, wherein the heat source is mounted spaced from the mounting surface to form the airflow channel (2).

3. The heat dissipation structure according to claim 1, wherein the heat source is an electric component including a control main board (3) and a mounting plate (4) for fixing the control main board; the mounting surface is a clapboard (5).

4. The heat dissipation structure of claim 3, wherein the mounting plate (4) is provided with a plurality of heat dissipation holes (41).

5. The heat dissipation structure of claim 4, wherein the heat dissipation hole (41) is a stepped structure comprising an upper inclined hole section (411) and a lower vertical hole section (412) connected and communicated with each other.

6. The heat dissipation structure according to claim 4 or 5, wherein the electrical component further comprises an electrical box (6) and a cover (7), and the control main board (3) is fixed to the electrical box (6) through the mounting plate (4); a plurality of pore structures are arranged on the electrical box (6) from top to bottom to form a louver type heat dissipation structure (61).

7. The heat dissipating structure of claim 6, wherein the louvered heat dissipating structure (61) comprises a plurality of sets of spaced vertical fins (611) and inclined fins (612), and a porous heat dissipating port (613) is formed between the vertical fins (611) and the inclined fins (612).

8. The heat dissipation structure of claim 7, wherein the inclined blades (612) are inclined towards the inner side of the electrical box (6), and the included angle α between the inclined blades (612) and the vertical blades (611) ranges from 10 ° to 30 °.

9. The heat dissipation structure of claim 6, wherein a rib structure is further disposed on the electrical box (6), the rib structure comprises an upper rib (62), and the upper rib (62) is located above the louvered heat dissipation structure (61).

10. The heat dissipating structure of claim 9, wherein both ends of the upper rib (62) extend to the edge of the electrical box and then are bent downward.

11. The heat dissipation structure of claim 9, wherein the electrical box (6) is further provided with two concave water grooves (63), and the two water grooves (63) are located below the upper blocking rib (62) and are respectively arranged corresponding to the ends of the upper blocking rib (62).

12. The heat dissipation structure as recited in claim 9, wherein the rib structure includes a lower rib (64), and the lower rib (64) is located below the louver-type heat dissipation structure (61).

13. The heat dissipating structure of claim 6, wherein the heat dissipating holes (41) are arranged in a staggered manner with respect to the heat dissipating ports (613) of the louvered heat dissipating structure (61).

14. An electrical apparatus, characterized by comprising the heat dissipating structure of any one of claims 1 to 13.

15. The electrical apparatus of claim 14, wherein the electrical apparatus is an air conditioner.

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