Electric control heat dissipation device and air conditioner outdoor unit

Abstract

The utility model discloses an electric control heat dissipation device and an air conditioner outdoor unit, and relates to the technical field of electric control heat dissipation, the electric control heat dissipation device comprises a shell, at least one first heat dissipation piece and at least one second heat dissipation piece, the shell comprises a first outer side face arranged upwards and a second outer side face arranged downwards, the shell is provided with a cavity, and the first heat dissipation piece and the second heat dissipation piece are arranged in the cavity. The cavity is filled with a porous medium, part of the cooling liquid is filled in the porous medium, the first heat dissipation piece is connected to the first outer side face, the second heat dissipation piece is connected to the inner wall of the cavity and makes contact with the cooling liquid, and the electric control element is connected to the second outer side face. The heat of the electric control element is mainly conducted into the cavity from the second outer side face, the first heat dissipation piece, the second heat dissipation piece, the porous medium and the cooling liquid can dissipate the heat in the cavity, the heat dissipation device can be suitable for dissipating heat of the electric control element in a high-temperature environment, the heat dissipation effect is good, and the manufacturing cost is low.

Description

Technical Field

[0001] The utility model relates to the technical field of electric control heat dissipation, in particular to an electric control heat dissipation device and an air conditioner outdoor unit. Background Art

[0002] It is understandable that the outdoor unit of the air conditioner is usually arranged in an outdoor environment. Since the temperature of the outdoor environment is relatively high, it is necessary to consider how to dissipate the heat of the electric control board in the outdoor unit of the air conditioner to ensure that the electric control board can work normally. In the related art, a fan or a refrigerant ring is usually used to dissipate the heat of the electric control board. Specifically, in the heat dissipation method of the fan, the fan blows out cold air to dissipate the heat of the electric control board, but because the fan is located in the outdoor unit of the air conditioner, the wind blown out by the fan is hot air with a relatively high temperature, and the heat dissipation capacity is insufficient; in the heat dissipation method of the refrigerant ring, a U-shaped copper tube is used to connect to the refrigerant pipeline of the refrigeration system, and the refrigerant in the refrigerant pipeline is used to dissipate the heat of the electric control board, but it will lead to higher manufacturing costs, and the heat dissipation effect of the refrigerant ring on the electric control board is not very ideal. Utility Model Content

[0003] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides an electric control heat dissipation device, which can dissipate heat for electric control components in a high temperature environment, has a good heat dissipation effect, and has a low manufacturing cost.

[0004] The utility model also provides an air-conditioning outdoor unit with the above-mentioned electric-controlled heat dissipation device.

[0005] According to the first aspect of the utility model, the electric control heat dissipation device includes: a shell, including a first outer side surface and a second outer side surface, the first outer side surface is arranged upward, the second outer side surface is arranged downward, the second outer side surface is used to connect with the electric control element, the shell is provided with a cavity, the cavity is provided with a coolant, the cavity is also filled with a porous medium, and part of the coolant is filled in the porous medium; at least one first heat dissipation element is connected to the first outer side surface; at least one second heat dissipation element is connected to the inner wall of the cavity, and the second heat dissipation element is in contact with the coolant.

[0006] According to the electrically controlled heat dissipation device of the first aspect of the utility model, there are at least the following beneficial effects: when installing and using the electrically controlled heat dissipation device, the electrically controlled element is connected to the second outer side surface of the shell, the heat generated by the electrically controlled element will be conducted to the second outer side surface, and the second outer side surface will conduct the heat to the cavity of the shell, and the second heat sink, porous medium and coolant in the cavity can absorb the heat in the cavity. Specifically, due to the effect of gravity, the coolant accumulates on the bottom wall of the cavity. When the external environment temperature is high, the temperature of the coolant easily reaches the boiling point, allowing the coolant to easily change from liquid to gas, which can absorb more heat. After the coolant is converted into gas, the gas flows upward to the top wall of the cavity. The top wall of the cavity is close to the first outer side surface. The heat of the gas is conducted to the first heat sink through the first outer side surface. The first heat sink can dissipate the heat. After the gas dissipates the heat, it will condense and turn back into the coolant. In addition, the porous medium is in contact with the coolant. The contact area between the porous medium and the coolant is large, which can enhance the heat conduction effect, which is conducive to the porous medium absorbing the heat of the coolant. The gas can also fully dissipate heat in the porous medium, thereby converting back into the coolant. The second heat sink is also in contact with the coolant, and the second heat sink can also absorb the heat of the coolant, which can improve the heat dissipation effect. The electric control heat dissipation device of this embodiment can be used to dissipate heat for electric control components in a high temperature environment. It has a good heat dissipation effect and a low manufacturing cost.

[0007] According to some embodiments of the present invention, the porous medium is provided with a plurality of through holes, inner walls of the plurality of through holes are in contact with the coolant, the through holes are constructed as capillary channels, and the capillary channels extend in the up-down direction of the shell.

[0008] According to some embodiments of the utility model, the second heat sink is arranged along the up and down direction of the shell, at least part of the structure of the second heat sink is located in the porous medium, and a plurality of second heat sinks are provided and the plurality of second heat sinks are arranged at intervals along the horizontal direction.

[0009] According to some embodiments of the utility model, a first inner side surface and a second inner side surface are formed in the cavity, and along the up and down directions of the shell, the first inner side surface is arranged back to back with the first outer side surface, and the second inner side surface is arranged back to back with the second outer side surface, one end of the second heat sink is connected to the first inner side surface, and the other end of the second heat sink is connected to the second inner side surface.

[0010] According to some embodiments of the present invention, the first inner side surface includes a first inclined surface and a second inclined surface arranged opposite to each other in a horizontal direction, and the distance from the first inclined surface to the second inclined surface gradually increases from top to bottom.

[0011] According to some embodiments of the utility model, one end of the first heat sink is connected to the first outer side surface, there are multiple first heat sinks, the multiple first heat sinks are arranged at intervals in the horizontal direction, and one end of the multiple first heat sinks away from the first outer side surface is flush with the horizontal direction.

[0012] According to some embodiments of the present invention, the first heat sink and the shell are integrated, the first heat sink is provided with a cavity connected to the cavity, and a partial structure of the porous medium is located in the cavity.

[0013] According to some embodiments of the present invention, the vacuum degree of the cavity is 5.6 kPa to 9.6 kPa.

[0014] According to some embodiments of the utility model, the electrically controlled heat dissipation device includes a vacuum pipeline connected to the cavity, one end of the vacuum pipeline is connected to the first outer side surface, the vacuum pipeline is located between two adjacent first heat dissipation elements, and a partial structure of the porous medium is located inside the vacuum pipeline.

[0015] According to the second embodiment of the present invention, the air conditioner outdoor unit comprises the electrically controlled heat dissipation device and the electrically controlled element according to the first embodiment, wherein the electrically controlled element is connected to the second outer side surface.

[0016] According to the air-conditioning outdoor unit of the second embodiment of the utility model, since it includes the electrically controlled heat dissipation device of the first embodiment, it has at least the above-mentioned beneficial effects, which will not be described in detail here.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0019] Figure 1 It is a cross-sectional view of an electrically controlled heat dissipation device according to some embodiments of the utility model;

[0020] Figure 2 A cross-sectional view of the electric-controlled heat dissipation device in another direction of some embodiments of the utility model;

[0021] Figure 3 A top view of an electrically controlled heat dissipation device according to some embodiments of the present utility model;

[0022] Figure 4 It is a cross-sectional view of the electrically controlled heat dissipation device of some embodiments of the utility model (the porous medium and the coolant are hidden);

[0023] Figure 5 It is a cross-sectional view of an electrically controlled heat dissipation device according to some embodiments of the utility model;

[0024] Figure 6 for Figure 5 The enlarged view of point A in the middle;

[0025] Figure 7 It is a cross-sectional view of an electrically controlled heat dissipation device according to some embodiments of the utility model;

[0026] Figure 8 It is a cross-sectional view of an electrically controlled heat dissipation device according to some embodiments of the present invention.

[0027] Reference numerals:

[0028] Electrically controlled heat dissipation device 1000;

[0029] Shell 100, first outer side surface 110, third inclined surface 111, fourth inclined surface 112, second outer side surface 120, first inner side surface 130, first inclined surface 131, second inclined surface 132, second inner side surface 140, cavity 150, porous medium 160, coolant 170;

[0030] A first heat dissipation element 200, a cavity 210, and a gap 220;

[0031] A second heat dissipation element 300;

[0032] Vacuum line 400;

[0033] Electronically controlled component 500. DETAILED DESCRIPTION

[0034] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0035] Reference Figure 1 As shown, the electrically controlled heat dissipation device 1000 of the embodiment of the utility model comprises a housing 100, a first heat dissipation member 200 and a second heat dissipation member 300. The housing 100 has an up-down direction, a left-right direction and a front-back direction.

[0036] Reference Figure 1As shown, the housing 100 includes a first outer side surface 110 and a second outer side surface 120, and the first outer side surface 110 and the second outer side surface 120 are arranged opposite to each other in the up-down direction. It can be understood that the first outer side surface 110 is arranged upward, and the first outer side surface 110 is the upper side wall of the housing 100, and the second outer side surface 120 is arranged downward, and the second outer side surface 120 is the lower side wall of the housing 100. The number of the first heat sink 200 can be multiple, and the multiple first heat sinks 200 are respectively connected to the first outer side surface 110, and the multiple first heat sinks 200 are arranged at intervals in the horizontal direction, and the second outer side surface 120 is used to connect with the electric control element 500.

[0037] Specifically, refer to Figure 1 As shown, the housing 100 is provided with a cavity 150, which can be understood as a closed chamber, and the cavity 150 is not connected to the outside. A porous medium 160 and a coolant 170 are provided in the cavity 150, and the porous medium 160 is filled in the cavity 150, and part of the coolant 170 is filled in the porous medium 160. The porous medium 160 can be understood as a porous structure, and it can also be understood that the porous medium 160 is formed with a plurality of through holes or a plurality of channels, and the coolant 170 is a liquid medium. The porous medium 160 is in contact with the coolant 170, and it can be understood that part of the structure of the porous medium 160 is immersed in the coolant 170. In some other embodiments, the entire porous medium 160 can also be immersed in the coolant 170. The second heat sink 300 is arranged in the cavity 150, and the second heat sink 300 is connected to the inner wall of the cavity 150. The second heat sink 300 is also in contact with the coolant 170. It can be understood that a part of the structure of the second heat sink 300 is immersed in the coolant 170. In some other embodiments, the entire second heat sink 300 can also be immersed in the coolant 170. A part of the structure of the second heat sink 300 is located in the porous medium 160, which can be understood as the second heat sink 300 is inserted into the porous medium 160. Specifically, a part of the structure of the second heat sink 300 can be inserted into the porous medium 160, or the entire structure of the second heat sink 300 can be inserted into the porous medium 160.

[0038] When installing and using the electric controlled heat dissipation device 1000, Figure 1As shown, the electric control element 500 is connected to the second outer side surface 120 of the housing 100, the housing 100 is placed vertically, the coolant 170 is accumulated at the bottom of the cavity 150, the electric control element 500 is located at the bottom of the housing 100, and the coolant 170 is just opposite to the position of the electric control element 500. When the electric control element 500 generates heat, the heat generated by the electric control element 500 will be transferred to the second outer side surface 120, and the second outer side surface 120 will transfer the heat to the cavity 150 of the housing 100, and the second heat sink 300, the porous medium 160 and the coolant 170 in the cavity 150 can absorb the heat in the cavity 150. Specifically, a coolant 170 with a lower boiling point can be used. In a high-temperature environment, the coolant 170 can easily change from liquid to gas and absorb more heat. When the coolant 170 evaporates into gas, the gas will flow upward to the top wall of the cavity 150. The top wall of the cavity 150 corresponds to the first outer side surface 110. The heat of the gas can be conducted to the first heat sink 200 through the first outer side surface 110. The first heat sink 200 can dissipate the heat, thereby taking away the heat of the electronic control component 500. After the gas dissipates the heat, it will condense and turn back into the coolant 170. Under the action of gravity, the coolant 170 at the top wall of the cavity 150 will flow back downward to the bottom of the cavity 150, forming a repeated cycle process. Since the porous medium 160 is in contact with the coolant 170 and the porous medium 160 is a porous structure, the contact area between the porous medium 160 and the coolant 170 can be larger, which can enhance the heat conduction effect and help the coolant 170 to dissipate heat. Moreover, after the coolant 170 absorbs heat and evaporates into gas, the gas can pass through the through holes in the porous medium 160, and the porous medium 160 can also absorb the heat of the gas. The gas is easy to condense when it encounters cold on the inner wall of the through hole. At the same time, the second heat sink 300 is also in contact with the coolant 170, and the second heat sink 300 can also absorb the heat of the coolant 170, which is conducive to the coolant 170 to dissipate heat and improve the heat dissipation effect. The electric control heat dissipation device 1000 of this embodiment has a good heat dissipation effect and a low manufacturing cost. The boiling point of the coolant 170 is low, and the coolant 170 is easy to absorb heat and evaporate, thereby taking away the heat of the electric control element 500, which is suitable for achieving heat dissipation effect in a high temperature environment.

[0039] It should be noted that, in some embodiments, the first heat sink 200 and the second heat sink 300 are both constructed as heat sink fins with a sheet-like structure. The first heat sink 200 and the second heat sink 300 can be made of materials such as copper, aluminum alloy or stainless steel.

[0040] It should be noted that, in some embodiments, the cross-sectional contour line of the through hole of the porous medium 160 can be circular, elliptical, square or arc-shaped, and the through hole can extend in a straight direction or in a curved direction. In some embodiments, the through hole of the porous medium is constructed as a capillary channel, which extends in the up-down direction. The inner diameter of the capillary channel is small. When the coolant 170 is located in the capillary channel, a capillary phenomenon occurs. The coolant 170 generates surface tension due to the cohesive force between liquid molecules. It can be understood that the coolant 170 is sucked up by the capillary channel, which can be understood as the liquid level in the capillary channel rising. Specifically, the capillary channel can be understood as a through hole with an inner diameter of 0.3mm-3mm, which ensures that the inner diameter of the capillary channel is small, which can increase the contact area between the porous medium 160 and the coolant 170 and improve the heat dissipation effect. The inner diameter of the capillary channel is preferably 1mm, which ensures that the inner diameter of the capillary channel is small, and at the same time facilitates the gas formed by the evaporation of the coolant 170 to pass through the capillary channel, thereby improving the fluidity.

[0041] It should be noted that, in some embodiments, the porous medium 160 can be a foaming material, and when foaming, a plurality of through holes will be formed inside the foaming material. In some other embodiments, the porous medium 160 can be an inorganic non-metallic or organic porous material, such as porous ceramics, SiO2 and other materials, or a foamed metal material, an aerogel material, a melt-blown PP material or a polymer foaming material (such as PP, PE, PVC, EPDM, EPE, EPS, EVA, EPP, etc.), or the porous medium 160 can also be a fiber woven porous filter structure, and the fiber material inside it can be an organic fiber, an inorganic fiber or a mixed fiber material. The porous medium 160 can be understood as a capillary structure. In general, the porous medium 160 can improve the thermal conductivity and reduce the thermal resistance.

[0042] It should be noted that, in some embodiments, the material filling rate of the porous medium 160 is 80%-95%, which can also be understood as that the volume of the porous medium 160 accounts for 80%-95% of the total volume of the cavity 150. The porous medium 160 can fully fill the entire cavity 150, improve space utilization, and increase the contact area between the porous medium 160 and the coolant 170.

[0043] It should be noted that, in some embodiments, the coolant 170 can be water, which has a low cost. The cavity 150 has a certain vacuum degree after being evacuated by a vacuum pumping device, so that the boiling point of the coolant 170 is low in a vacuum environment, which is conducive to the coolant 170 absorbing heat and evaporating into gas. In order to ensure that the coolant 170 can easily evaporate into gas, the coolant 170 may not fill the entire cavity 150, and the volume of the coolant 170 may account for 50% to 60% of the total volume of the cavity 150. It should be noted that, in some embodiments, the vacuum degree of the cavity 150 is 5.6-9.6 kPa, preferably 7.4 kPa, which is convenient for performing the vacuum process, and the vacuum degree is high, which can ensure that the boiling point of the coolant 170 is low.

[0044] It is understandable that, referring to Figure 1 As shown, in some embodiments, the number of the second heat sink 300 is multiple, and the multiple second heat sinks 300 are arranged at intervals along the left and right directions. It can be understood that multiple second heat sinks 300 are inserted into the porous medium 160, which can make full use of the space and improve the heat dissipation effect. Specifically, the through holes of the porous medium 160 are extended in the up and down directions, and the second heat sink 300 is also extended in the up and down directions. When the coolant 170 absorbs heat and evaporates into gas, the gas can be guided to flow upward to the first outer side surface 110, which is conducive to heat conduction. In addition, when the gas dissipates heat and turns back into the coolant 170, the coolant 170 can also flow downward along the through holes of the second heat sink 300 or the porous medium 160, which can play a role in guiding flow.

[0045] Reference Figure 4 As shown, in some other embodiments, the second heat sink 300 can also be extended in the horizontal direction, and multiple second heat sinks 300 are arranged at intervals in the up and down directions, so that a part of the second heat sinks 300 are completely immersed in the coolant 170, increasing the contact area with the coolant 170, and a part of the second heat sinks 300 are located above the coolant 170. For the second heat sink 300 located above the coolant 170, when the coolant 170 at the top wall of the cavity 150 flows back downward, the coolant 170 will drip onto the second heat sink 300 and flow along the surface of the second heat sink 300, increasing the contact area with the coolant 170, which is beneficial to cooling the coolant 170.

[0046] It is understandable that, referring to Figure 1As shown, in some embodiments, a first inner side surface 130 and a second inner side surface 140 are formed in the cavity 150, the first inner side surface 130 can be understood as the top wall of the cavity 150, the second inner side surface 140 can be understood as the bottom wall of the cavity 150, the first inner side surface 130 and the second inner side surface 140 are arranged facing each other in the up-down direction, the first inner side surface 130 is arranged downward, and the second inner side surface 140 is arranged upward. Describing from another angle, it can be understood that the first inner side surface 130 and the first outer side surface 110 are arranged back to back in the up-down direction, and the second inner side surface 140 and the second outer side surface 120 are arranged back to back in the up-down direction. The porous medium 160 is filled in the cavity 150, so that the porous medium 160 is in contact with the first inner side surface 130 and the second inner side surface 140, which can be understood as the porous medium 160 is fixed in the cavity 150. The upper end of the second heat sink 300 is connected to the first inner side surface 130, and the lower end of the second heat sink 300 is connected to the second inner side surface 140, so as to fix the second heat sink 300. The second heat sink 300 and the shell 100 can be an integral structure, and can be made by an integral molding process. The second heat sink 300 and the shell 100 can also be connected by welding. Multiple second heat sinks 300 are arranged at intervals in the left-right direction, and the through holes of the porous medium 160 are extended in the up-down direction.

[0047] In this embodiment, since the second heat sink 300 connects the first inner side surface 130 and the second inner side surface 140 , the second heat sink 300 can quickly conduct the heat at the second inner side surface 140 to the first inner side surface 130 , thereby accelerating heat conduction and improving the heat dissipation effect.

[0048] In some embodiments, the second heat sink 300 is configured as a baffle, which can be understood as the second heat sink 300 being bent or curved, and the second heat sink 300 including a plurality of bent portions, which can increase the surface area of ​​the second heat sink 300, thereby increasing the contact area between the second heat sink 300 and the coolant 170, improving the heat transfer efficiency, and facilitating the second heat sink 300 to absorb the heat of the coolant 170. In addition, the first heat sink 200 can also be configured as a baffle.

[0049] Reference Figure 1 As shown, in some embodiments, the first heat sink 200 is extended in the up-down direction, the lower end of the first heat sink 200 is connected to the first outer side surface 110, the upper end of the first heat sink 200 is arranged upward, and multiple first heat sinks 200 are arranged at intervals in the left-right direction, which can make full use of the spatial position, make the surface area of ​​the first heat sink 200 as large as possible, improve the heat dissipation capacity of the first heat sink 200, and form a heat dissipation space between two adjacent first heat sinks 200, which is beneficial for the first heat sink 200 to dissipate heat.

[0050] It is understandable that, referring to Figure 1As shown, in some embodiments, the first outer side surface 110 is a horizontally arranged plane, so that the shape of the housing 100 is relatively regular and convenient to manufacture, and the lengths of the plurality of first heat sinks 200 are the same along the vertical direction, which can also be understood as the surface areas of the plurality of first heat sinks 200 being the same, which is easy to configure, and the ends of the plurality of first heat sinks 200 away from the first outer side surface 110 can be flush with the horizontal direction, which can reduce the influence of heat radiation between the two first heat sinks 200, for example, the heat radiation of the first heat sink 200 at the middle position is not easy to affect the first heat sinks 200 at the left and right sides, which is conducive to improving the heat dissipation effect. In addition, the ends of the plurality of first heat sinks 200 away from the first outer side surface 110 are flush with the horizontal direction, which can also avoid obstructing the flow of airflow in the left and right directions and improve the airflow flow.

[0051] It should be noted that if the first inner side surface 130 is a horizontally arranged plane, when the gas is cooled at the first inner side surface 130 and converted into the coolant 170, the coolant 170 flows back downward at a slow speed, and the coolant 170 is likely to drip directly downward onto the porous medium 160, and is likely to clog the through holes in the porous medium 160, which will hinder the gas below from passing through the through holes upward, so it is necessary to consider how to solve this problem.

[0052] Based on this, refer to Figure 7 As shown, in some embodiments, the first inner side surface 130 includes a first inclined surface 131 and a second inclined surface 132, and the first inclined surface 131 and the second inclined surface 132 are arranged opposite to each other in the left-right direction, and the distance from the first inclined surface 131 to the second inclined surface 132 in the left-right direction gradually increases from the first inner side surface 130 to the second inner side surface 140. It can also be understood that the first inclined surface 131 and the second inclined surface 132 form an inverted V-shaped structure, and the second inner side surface 140 is a flat surface and extends in the horizontal direction.

[0053] When the gas is cooled at the first inner side surface 130 and becomes the coolant 170, the coolant 170 will flow along the first inclined surface 131 or the second inclined surface 132 due to the effect of gravity. It can be understood that the coolant 170 is directed to the left and right sides of the first inner side surface 130, which plays a guiding role and can accelerate the flow speed of the coolant 170, allowing the coolant 170 to flow downward quickly. When the coolant 170 flows, it will encounter the second heat sink 300, and then flow downward along the surface of the second heat sink 300, so that the coolant 170 will not drip directly down to the porous medium 160, which is conducive to the upward flow of the gas in the through hole. In addition, when the coolant 170 flows downward along the second heat sink 300, the second heat sink 300 can also absorb the heat of the coolant 170 to further reduce the temperature of the coolant 170.

[0054] It is understandable that, referring to Figure 7As shown, in some embodiments, the first outer side surface 110 includes a third inclined surface 111 and a fourth inclined surface 112 which are arranged back to back in the left-right direction, and the distance from the third inclined surface 111 to the fourth inclined surface 112 gradually increases from the first outer side surface 110 to the second outer side surface 120. It can also be understood that the third inclined surface 111 and the fourth inclined surface 112 form an inverted V-shaped structure, the second outer side surface 120 is arranged in the horizontal direction, and the second outer side surface 120 is a straight plane. The shape of the first outer side surface 110 is more matched with the shape of the first inner side surface 130, so that the wall thickness of the housing 100 can be more uniform, avoiding manufacturing defects caused by uneven wall thickness. At the same time, the wall thickness of the housing 100 is relatively small, which can shorten the heat transfer path, allowing the heat in the cavity 150 to be quickly transferred to the first heat sink 200, which is conducive to heat dissipation.

[0055] It is understandable that, referring to Figure 7 As shown, in some embodiments, one end of the plurality of first heat sinks 200 is connected to the third inclined plane 111, and on the third inclined plane 111, from left to right, the length of the plurality of first heat sinks 200 in the vertical direction gradually decreases, which can ensure that the upper ends of the plurality of first heat sinks 200 are flush with the horizontal direction, that is, the highest positions of the plurality of first heat sinks 200 are the same, and the influence of heat radiation between the plurality of first heat sinks 200 is weakened, and the heat dissipation effect is better. Similarly, in some embodiments, one end of the plurality of first heat sinks 200 is connected to the fourth inclined plane 112, and on the fourth inclined plane 112, from left to right, the length of the plurality of second heat sinks 300 in the vertical direction gradually increases, which can ensure that the upper ends of the plurality of first heat sinks 200 are flush with the horizontal direction, that is, the highest positions of the plurality of first heat sinks 200 are the same, and the influence of heat radiation between the plurality of first heat sinks 200 is weakened, and the heat dissipation effect is better. In addition, the ends of the plurality of first heat sinks 200 away from the first outer side surface 110 are flush with the horizontal direction, which can also avoid obstructing the flow of air in the left and right directions, and improve the air flow.

[0056] It is understandable that, referring to Figure 3 As shown, in some embodiments, multiple first heat dissipation elements 200 are divided into multiple groups of first heat dissipation groups, each group of first heat dissipation groups includes at least two first heat dissipation elements 200, and multiple groups of first heat dissipation groups are arranged at intervals along the left-right direction. For each group of first heat dissipation groups, there are at least two first heat dissipation elements 200 arranged at intervals along the front-to-back direction. It can be understood that along the front-to-back direction, a gap 220 is formed between two adjacent first heat dissipation elements 200, which allows the airflow to pass through the gap 220 more smoothly along the left-to-right direction, thereby improving the fluidity of the airflow, which is beneficial to the heat dissipation of the first heat dissipation elements 200.

[0057] It is understandable that, referring to Figure 1 and Figure 2As shown, in some embodiments, multiple second heat sinks 300 are divided into multiple second heat sink groups, and the multiple second heat sink groups are arranged at intervals along the left-right direction. Each second heat sink group includes at least two second heat sinks 300. For each second heat sink group, there are at least two second heat sinks 300 arranged at intervals along the front-back direction, which can facilitate the circulation of the coolant 170 between the multiple second heat sinks 300 and avoid the coolant 170 accumulating in a certain position to cause uneven heat dissipation.

[0058] Reference Figure 1 and Figure 2 As shown, in some embodiments, multiple groups of first heat dissipation groups and multiple groups of second heat dissipation groups are relatively arranged in the up-down direction, which can be understood as one group of first heat dissipation groups corresponding to one group of second heat dissipation groups. In the front-to-back direction, the width of the first heat dissipation element 200 is greater than the width of the second heat dissipation element 300, and for a group of first heat dissipation groups and a group of second heat dissipation groups that are relatively arranged, the number of the second heat dissipation elements 300 in the second heat dissipation group is greater than the number of the first heat dissipation elements 200 in the first heat dissipation group, for example, Figure 2 As shown, a first heat dissipation group includes two first heat dissipation elements 200 spaced apart along the front-to-back direction, and a second heat dissipation group includes nine first heat dissipation elements 200 spaced apart along the front-to-back direction.

[0059] It is understandable that, referring to Figure 5 and Figure 6 As shown, in some embodiments, the first heat sink 200 and the shell 100 are an integral part, and the first heat sink 200 and the shell 100 are made by an integrated molding manufacturing process. The first heat sink 200 is provided with a cavity 210 connected to the cavity 150. It should be noted that the cavity 210 is not connected to the outside. It can be understood that the first heat sink 200 is a hollow or hollow structure, which can increase the inner surface area of ​​the first heat sink 200 and enhance the heat conduction effect. Moreover, after the coolant 170 evaporates into gas, the gas can flow into the cavity 210, increasing the space for the gas to flow upward. The gas directly exchanges heat with the first heat sink 200 without passing through the first outer side surface 110 and then being conducted to the first heat sink 200, which is conducive to conducting the heat of the gas out. In some embodiments, part of the structure of the porous medium 160 may be located in the cavity 210. It can be understood that the porous medium 160 is filled in the first heat sink 200, which can make full use of the space and increase the volume of the porous medium 160. When the coolant 170 absorbs heat and evaporates into gas, the gas can flow into the porous medium 160 in the first heat sink 200, which is conducive to the porous medium 160 absorbing the heat of the gas. The gas can also condense in the porous medium 160 in the first heat sink 200 and become liquid, increasing the contact area between the liquid and the through holes of the porous medium 160 and improving the heat dissipation effect.

[0060] It is understandable that, in order to facilitate the vacuuming of the housing 100, Figure 1 As shown, in some embodiments, the electrically controlled heat dissipation device 1000 includes a vacuum pipeline 400, which is connected to the cavity 150. The vacuum pipeline 400 can be connected to a vacuum device to evacuate the cavity 150. After the vacuum is evacuated, the vacuum pipeline 400 is welded and sealed to prevent the cavity 150 from being connected to the outside.

[0061] It should be noted that, considering that the electric control heat dissipation device 1000 is installed in the air conditioner outdoor unit, the installation environment in the air conditioner outdoor unit has restrictions on the size of the housing 100 in the left and right directions, and it is necessary to consider how to optimize the position layout of the vacuum pipeline 400. Figure 1 As shown, in some embodiments, the vacuum pipeline 400 is extended in the up-down direction, the upper end of the vacuum pipeline 400 is arranged upward, the lower end of the vacuum pipeline 400 is connected to the first outer side surface 110, and the vacuum pipeline 400 is located between two adjacent first heat sinks 200, which can make full use of the space and prevent the vacuum pipeline 400 from protruding from the left or right side of the shell 100. In addition, when the coolant 170 absorbs heat and evaporates into gas, it can flow upward into the vacuum pipeline 400 for heat exchange, thereby increasing the space for the gas to flow upward.

[0062] In addition, in some embodiments, part of the structure of the porous medium 160 can be located in the vacuum pipeline 400, which can increase the volume of the porous medium 160. When the coolant 170 absorbs heat and evaporates into gas, the gas can flow to the porous medium 160 in the vacuum pipeline 400, which is beneficial to the heat dissipation of the gas.

[0063] In some embodiments, the vacuum line 400 can be made of copper, aluminum alloy, stainless steel and other materials, which have good structural strength and are not easy to rust.

[0064] An embodiment of the utility model also provides an air-conditioning outdoor unit, which includes an electric control element 500 and the electric control heat dissipation device 1000 of the above embodiment. The electric control element 500 is connected to the second outer side surface 120 of the shell 100. The electric control element 500 can be an electronic component structure such as a chip or a circuit board. The electric control heat dissipation device 1000 can dissipate heat for the electric control element 500 in a high temperature environment. The heat dissipation effect is good and the manufacturing cost is low, thereby ensuring that the electric control element 500 can work normally in an outdoor high temperature environment.

[0065] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, inside, outside, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0066] In the description of the utility model, if there is a description of first or second, it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0067] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0068] The embodiments of the utility model are described in detail above in conjunction with the accompanying drawings. Finally, it should be explained that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model is described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. An electrically controlled heat dissipation device, characterized in that: include: The housing comprises a first outer side surface and a second outer side surface, wherein the first outer side surface is arranged upward, and the second outer side surface is arranged downward, and the second outer side surface is used to connect with the electric control element, and the housing is provided with a cavity, wherein a coolant is arranged in the cavity, and the cavity is also filled with a porous medium, and part of the coolant is filled in the porous medium; At least one first heat dissipation element connected to the first outer side surface; At least one second heat sink is connected to the inner wall of the cavity, and the second heat sink is in contact with the coolant.

2. The electrically controlled heat dissipation device according to claim 1, characterized in that: The porous medium is provided with a plurality of through holes, inner walls of the plurality of through holes are in contact with the coolant, the through holes are configured as capillary channels, and the capillary channels extend in the up-down direction of the shell.

3. The electrically controlled heat dissipation device according to claim 2, characterized in that: The second heat sink is arranged along the up-down direction of the shell, at least a part of the structure of the second heat sink is located in the porous medium, and a plurality of the second heat sinks are provided and the plurality of the second heat sinks are arranged at intervals along the horizontal direction.

4. The electrically controlled heat dissipation device according to claim 3, characterized in that: A first inner side surface and a second inner side surface are formed in the cavity. Along the up and down direction of the shell, the first inner side surface is arranged back to back with the first outer side surface, and the second inner side surface is arranged back to back with the second outer side surface. One end of the second heat sink is connected to the first inner side surface, and the other end of the second heat sink is connected to the second inner side surface.

5. The electrically controlled heat dissipation device according to claim 4, characterized in that: The first inner side surface includes a first inclined surface and a second inclined surface that are arranged opposite to each other in a horizontal direction, and a distance from the first inclined surface to the second inclined surface gradually increases from top to bottom.

6. The electrically controlled heat dissipation device according to claim 1, characterized in that: One end of the first heat sink is connected to the first outer side surface. There are multiple first heat sinks, which are arranged at intervals in the horizontal direction. One end of the multiple first heat sinks away from the first outer side surface is flush with the horizontal direction.

7. The electrically controlled heat dissipation device according to claim 1, characterized in that: The first heat sink and the shell are an integrated piece. The first heat sink is provided with a cavity connected to the cavity. Part of the structure of the porous medium is located in the cavity.

8. The electrically controlled heat dissipation device according to claim 1, characterized in that: The vacuum degree of the cavity is 5.6 kPa to 9.6 kPa.

9. The electrically controlled heat dissipation device according to claim 8, characterized in that: The electrically controlled heat dissipation device includes a vacuum pipeline connected to the cavity, one end of the vacuum pipeline is connected to the first outer side surface, the vacuum pipeline is located between two adjacent first heat dissipation components, and a partial structure of the porous medium is located in the vacuum pipeline.

10. An air conditioner outdoor unit, characterized in that: include: The electrically controlled heat dissipation device according to any one of claims 1 to 9; An electric control element is connected to the second outer side surface.

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