CN219843027U - Air-cooled heat dissipation support, power supply device and cleaning robot - Google Patents

Abstract

The utility model provides an air-cooled heat dissipation bracket, a power supply device and a cleaning robot. The air cooling heat dissipation support comprises an air inlet end, an air outlet end and an outer side face connected between the air inlet end and the air outlet end, wherein a support air inlet and a support air outlet are respectively arranged on the air inlet end and the air outlet end, an air cooling channel which is communicated with the support air inlet and the support air outlet is arranged in the air cooling heat dissipation support, and the outer side face of the air cooling heat dissipation support comprises a battery heat exchange face used for heat exchange with a battery. The air-cooled heat dissipation support can guide air flow to enter the air-cooled heat dissipation support from the support air inlet, and heat on the air-cooled heat dissipation support can be taken away in the process of flowing through the air-cooled channel, so that heat of a battery which can exchange heat with a battery heat exchange surface can be dissipated. The inventor finds that even if the battery is charged by using a quick charging mode or the performance of electric equipment (such as a dust removal fan) is completely released, the temperature of the battery can be effectively prevented from reaching an over-temperature protection point.

Description

Air-cooled heat dissipation support, power supply device and cleaning robot

Technical Field

The utility model relates to the technical field of intelligent robot battery systems, in particular to an air-cooled heat dissipation bracket, a power supply device and a cleaning robot.

Background

With the progress of technology, cleaning robots are being used more and more widely. The cleaning robot can automatically execute cleaning operation in a household space or a large-scale place waiting cleaning space, so that a large amount of cleaning time can be saved for people, and great convenience and comfortable experience are brought to the life of people.

Cleaning robots are increasingly abundant in variety and powerful in function. In order to realize the intellectualization of the cleaning robot, the accuracy of navigation and the like, more and more sensors are required to be equipped, and the operation amount of the chip is also increased, so that the heating value of the chip is increased. Moreover, the power of the dust removing fan of the cleaning robot has a direct relation with the cleaning effect, and the power of the fan of the existing cleaning robot is already up to 50W. In addition, the high-power driving motor and the like are arranged for increasing the load of the cleaning robot, so that the overall power consumption of the cleaning robot is rapidly increased, the discharging current of the battery is obviously increased, and the self-heating of the battery is serious. And the cleaning robot has a function of increasing to shorten the duration time, so it is considered to add a quick charge to increase the charging speed, but the battery temperature may be raised to reach the over-temperature protection point quickly while the charging current is increased. And at the same time, the heat field generated by the core board, the driving board and the like of the cleaning robot is superposed, so that the temperature rise of the battery is further deteriorated.

In the existing cleaning robot scheme, no special heat dissipation design is carried out on the battery, so that the battery cannot resist the temperature rise caused by high current. In order to prevent the temperature rise from exceeding the standard in the use process, the performance of the robot needs to be reduced. For example, a high-power fan has become mainstream at present, which causes that the discharge of the battery is easy to reach more than 5A, and the temperature rise of the battery in about 20 minutes exceeds the battery protection temperature in the state, so in order to solve the problem, a software strategy scheme is generally adopted, the power of the fan is reduced, the discharge current is kept at about 2A, the performance of the fan cannot be completely released, and the cleaning effect is also affected. In addition, when the base station charges soon, often can lead to charging current to reduce because the battery temperature rise exceeds standard to extension charging time, very big influence use experience.

Disclosure of Invention

In order to at least partially solve the problems of the prior art, according to one aspect of the present utility model, an air-cooled heat dissipating bracket is provided. The air cooling heat dissipation support comprises an air inlet end, an air outlet end and an outer side face connected between the air inlet end and the air outlet end, wherein a support air inlet and a support air outlet are respectively arranged on the air inlet end and the air outlet end, an air cooling channel which is communicated with the support air inlet and the support air outlet is arranged in the air cooling heat dissipation support, and the outer side face of the air cooling heat dissipation support comprises a battery heat exchange face used for heat exchange with a battery.

The air-cooled heat dissipation bracket provided by the utility model not only can play a role in heat dissipation, but also can play a role in supporting the battery. The air-cooled heat dissipation support can guide air flow to enter the air-cooled heat dissipation support from the support air inlet, and heat on the air-cooled heat dissipation support can be taken away in the process of flowing through the air-cooled channel, so that heat of a battery which can exchange heat with a battery heat exchange surface can be dissipated. The inventor finds that even if the battery is charged by using a quick charging mode or the performance of electric equipment (such as a dust removal fan) is completely released, the temperature of the battery can be effectively prevented from reaching an over-temperature protection point. In addition, as the battery is positioned on the outer side surface of the air cooling heat dissipation bracket, and the air cooling channel is arranged inside, the air cooling channel can be isolated from the battery, and the battery protection plate can be prevented from being short-circuited and corroded by water mist, soy sauce, fine dust and other impurities possibly carried by air flow flowing in the air cooling channel. Furthermore, the structure for radiating heat by using the air cooling technology is relatively simple, and the overall mass of electric equipment (such as a cleaning robot) adopting the air cooling radiating bracket cannot be increased excessively, so that the duration of the electric equipment cannot be influenced obviously. In addition, compared with the case that other surfaces such as end surfaces are set as battery heat exchange surfaces, at least one part of the outer side surfaces of the air-cooled heat dissipation brackets are set as battery heat exchange surfaces, so that the heat exchange area between the air-cooled heat dissipation brackets and the battery is larger, the heat transfer between the air-cooled heat dissipation brackets and the battery is facilitated, and therefore the heat dissipation efficiency of the air-cooled heat dissipation brackets can be improved; the air-cooled heat dissipation bracket can expose other parts of the battery to the outside, and the battery can dissipate heat through the exposed parts.

Illustratively, the air cooling channel comprises a plurality of air cooling sub-channels arranged side by side, wherein channel air inlets of the plurality of air cooling sub-channels are communicated with the bracket air inlet, and channel air outlets of the plurality of air cooling sub-channels are communicated with the bracket air outlet. The contact area between the air flow and the air cooling heat dissipation bracket can be enlarged by arranging the air cooling sub-channels, so that the heat dissipation efficiency of the air cooling heat dissipation bracket is improved.

Illustratively, the channel air inlets and the bracket air inlets of the plurality of air-cooled sub-channels are spaced apart and form an air inlet buffer cavity, and the air inlet buffer cavity is communicated between the channel air inlets and the bracket air inlets of the plurality of air-cooled sub-channels. The air inlet buffer cavity is arranged, so that the resistance of air flow entering the air cooling heat dissipation bracket through the bracket air inlet can be reduced, and the air flow can more uniformly enter a plurality of air cooling sub-channels, so that the heat dissipation effect is improved. And the air inlet buffer cavity can stabilize the entering air flow, so that vibration is reduced. In addition, on the premise that the fan continuously inputs positive pressure air flow into the air inlet buffer cavity through the air inlet of the bracket, the cross section area of the air inlet buffer cavity is larger than the sum of the cross section areas of the air cooling sub-channels, so that the flow speed of the air flow in the air cooling sub-channels is larger, the flow speed in the air inlet buffer cavity is smaller, the pressure potential energy of the air flow in the air inlet buffer cavity is larger according to the Bernoulli principle, and therefore positive pressure difference can be formed between the air inlet buffer cavity and the air cooling sub-channels, and the positive pressure difference can push the air flow to smoothly enter the air cooling sub-channels from the air inlet buffer cavity, so that the cooling effect is improved.

Illustratively, the channel air outlets of the plurality of air-cooled sub-channels are spaced apart from the support air outlet and form an air-out buffer cavity, and the air-out buffer cavity is communicated between the channel air outlets of the plurality of air-cooled sub-channels and the support air outlet. The air outlet buffer cavity can smoothly discharge air flows of the air cooling sub-channels, so that the pressure at the air outlet of the air cooling sub-channels is reduced, and the air flows at the air inlet of the channels can smoothly enter the air cooling sub-channels. And the air-out buffer cavity can also play a role in buffering and stabilizing the air flow exhausted from the air outlet of the channel, so that the air flow can be uniformly exhausted from the air outlet of the bracket, and vibration is reduced. Because the air-out buffer cavity can be communicated with the outside through the support air outlet, the air pressure in the air-out buffer cavity is approximately equal to the atmospheric pressure, and therefore the air flow in the air-cooling sub-channels can be ensured to smoothly enter the air-out buffer cavity.

Illustratively, the density of air-cooled subchannels in an edge region of the air-cooled heat sink support adjacent the outer side is greater than the density of air-cooled subchannels in a central region of the air-cooled heat sink support. Because the outer side surface of the air-cooled heat dissipation bracket comprises a battery heat exchange surface for heat exchange with a battery, more air-cooled sub-channels are arranged in the edge area close to the outer side surface, so that the cooling effect can be enhanced. Compared with the edge area, the air cooling sub-channel battery in the central area of the air cooling heat dissipation bracket has poor heat dissipation effect, so that fewer air cooling sub-channels can be arranged in the central area, thereby achieving the purposes of simplifying the structure and improving the mechanical strength of the air cooling heat dissipation bracket.

Illustratively, the air-cooled heat dissipating bracket includes: the air cooling channel is arranged on the heat conduction bracket and is communicated between the first groove and the second groove; and the first end cover and the second end cover are respectively buckled on the first groove and the second groove to form an air inlet end and an air outlet end, the bracket air inlet is arranged on the first end cover and communicated with the first groove, and the bracket air outlet is arranged on the second end cover and communicated with the second groove, wherein the battery heat exchange surface is positioned on the heat conducting bracket, the first end cover and/or the second end cover. The air cooling heat dissipation support is arranged to be of a split structure comprising the heat conduction support, the first end cover and the second end cover, and an air cooling channel, an air inlet buffer cavity and an air outlet buffer cavity can be processed more conveniently, so that the processing cost is reduced. Moreover, the split structure may have a greater degree of freedom in selecting materials. The heat conduction bracket mainly plays a role in heat conduction, and a plurality of air cooling sub-channels are required to be processed, so that materials with better heat conduction performance and higher mechanical strength and being more beneficial to processing can be selected. In contrast, the materials of the first end cap and the second end cap may have more room for selection. In this way, costs can be reduced.

Illustratively, the first and second grooves are recessed inwardly from end surfaces of both ends of the thermally conductive holder, respectively. The openings of the first and second grooves may not be located at the sides of the thermally conductive holder, thereby not occupying space on the outer sides of the thermally conductive holder. The outer side of the thermally conductive holder may be fully used to form the battery heat exchange surface. Under the condition of a certain battery volume, the space occupied by the air-cooled heat dissipation bracket can be reduced.

Illustratively, the air inlet end and the air outlet end are disposed opposite along a longitudinal direction of the air-cooled heat dissipating bracket. The batteries can be arranged on the air-cooled heat dissipation bracket more regularly, so that the structure of the power supply device is more compact and the volume is smaller.

The battery heat exchange surface penetrates the outer side surface of the air-cooled heat dissipation bracket in the longitudinal direction, and the length of the battery heat exchange surface is an integral multiple of the length of a battery capable of exchanging heat with the battery heat exchange surface. When the battery is mounted to the battery heat exchange surface, two ends of the battery can be flush with two ends of the air-cooled heat dissipation bracket, so that the structure of the power supply device is smaller and more compact.

Illustratively, the outer side includes a plurality of battery heat exchange surfaces disposed about the air-cooled heat dissipating bracket. Therefore, the air-cooled heat dissipation bracket can carry batteries as much as possible.

Illustratively, any adjacent two of the plurality of battery heat exchange surfaces meet each other. Therefore, the area of the outer side surface of the air-cooled heat dissipation bracket can be fully utilized, and the batteries can be mounted as much as possible under the condition that the volume of the air-cooled heat dissipation bracket is unchanged.

According to another aspect of the present utility model there is provided a power supply device comprising a battery and any one of the air-cooled heat-dissipating mounts as described above, the battery being in abutment against a battery heat-exchanging surface. The power supply device can mount the battery by using the air cooling heat dissipation bracket, and meanwhile, the battery is cooled by using the air cooling heat dissipation bracket. The power supply device has all the technical effects described above for the air-cooled heat dissipation bracket.

Illustratively, the battery is multiple and disposed around the air-cooled heat sink bracket. Therefore, the area of the outer side surface of the air-cooled heat dissipation bracket can be fully utilized, so that the batteries are mounted as much as possible under the condition that the volume of the air-cooled heat dissipation bracket is almost unchanged. And a plurality of batteries set up around the forced air cooling heat dissipation support for power supply unit's wholeness is stronger, has reduced whole device's occupation space.

The power supply device further comprises a battery fixing piece, wherein the battery fixing piece is used for fixing the plurality of batteries together, and the air cooling heat dissipation bracket is inserted in the middle of the plurality of batteries. Through inserting the air-cooled heat dissipation support in the middle of a plurality of batteries, the laminating of battery and the battery heat exchange face of air-cooled heat dissipation support not only can be guaranteed to guarantee radiating efficiency, but also can not need other structures to fix the air-cooled heat dissipation support, thereby can simplify structure, reduce cost.

Illustratively, the battery is a cylindrical battery and the battery heat exchange surface is an arcuate surface. Cylindrical batteries are one of the most commonly used battery forms in the prior art, and the power supply device has stronger universality and is easy to replace when the electric quantity of the battery is exhausted.

The power supply device further comprises a battery pack shell, the battery and the air-cooled heat dissipation bracket are packaged in the battery pack shell, and the bracket air inlet and the bracket air outlet are communicated with the outside of the battery pack shell. The battery pack case can protect the power supply device and prevent the battery from being polluted by the external environment.

According to still another aspect of the present utility model, there is provided a cleaning robot characterized in that the cleaning robot includes a dust removing fan and any one of the power supply devices as described above, a bracket air inlet of an air-cooled heat dissipating bracket of the power supply device is communicated with an air outlet pipe of the dust removing fan, and a bracket air outlet of the air-cooled heat dissipating bracket of the power supply device is communicated with an outside of the cleaning robot. The cleaning robot can realize air cooling without adding an additional fan, can greatly improve the energy efficiency of the system, reduce the noise of the system and can not obviously influence the total weight of the cleaning robot. Moreover, a circulating system is not required to be arranged in the cleaning robot, so that the complexity of the system is reduced, and the reliability of the system is improved.

Illustratively, the bottom of the cleaning robot is provided with an exhaust hole, and the bracket air outlet communicates with the outside of the cleaning robot via the exhaust hole. The air outlet duct may be connected to an air outlet hole on the mounting chassis of the cleaning robot. The air flow carrying the heat can be discharged outside the cleaning robot through the exhaust hole.

In the summary, a series of concepts in a simplified form are introduced, which will be further described in detail in the detailed description section. This summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.

Advantages and features of the utility model are described in detail below with reference to the accompanying drawings.

Drawings

The following drawings are included to provide an understanding of the utility model and are incorporated in and constitute a part of this specification. Embodiments of the present utility model and their description are shown in the drawings to explain the principles of the utility model. In the drawings of which there are shown,

fig. 1 is a perspective view of a partial structure of a cleaning robot according to an exemplary embodiment of the present utility model;

fig. 2 is a perspective view of the cleaning robot shown in fig. 1, as seen from the bottom;

Fig. 3 is a perspective view of a power supply device according to an exemplary embodiment of the present utility model;

fig. 4 is a perspective view of the power supply device shown in fig. 3, in which a battery pack case is not shown;

fig. 5 is an exploded view of the power supply device shown in fig. 4;

fig. 6 is a cross-sectional view of the power supply device shown in fig. 4 taken in a transverse direction;

fig. 7 is a cross-sectional view of the power supply device shown in fig. 4 taken along a longitudinal direction;

FIG. 8 is a perspective view of an air-cooled heat dissipating bracket according to an exemplary embodiment of the present utility model;

FIG. 9a is a cross-sectional view of the air-cooled heat dissipating bracket shown in FIG. 8 taken in a transverse direction; and

fig. 9b is a cross-sectional view of the air-cooled heat dissipating bracket shown in fig. 8 taken along the longitudinal direction.

Wherein the above figures include the following reference numerals:

100. an air-cooled heat dissipation bracket; 110. an air inlet end; 111. a bracket air inlet; 120. an air outlet end; 121. a bracket air outlet; 130. a battery heat exchange surface; 140. an air cooling channel; 141. an air cooling sub-channel; 1411. a channel air inlet; 1412. an air inlet buffer cavity; 1413. a channel air outlet; 1414. an air outlet buffer cavity; 150. a thermally conductive bracket; 151. a first groove; 152. a second groove; 160. a first end cap; 170. a second end cap;

200. A power supply device; 210. a battery; 220. a battery fixing member; 230. a battery pack case; 240. an air inlet pipeline; 250. an air outlet pipeline;

300. a cleaning robot; 310. a garbage collection device; 320. a dust removal fan; 321. an air inlet pipeline; 322. an air outlet pipeline; 330. a walking device; 331. a road wheel mounting groove; 340. installing a chassis; 350. and an exhaust hole.

Detailed Description

In the following description, numerous details are provided to provide a thorough understanding of the utility model. However, it will be understood by those skilled in the art that the following description illustrates preferred embodiments of the utility model by way of example only and that the utility model may be practiced without one or more of these details. Furthermore, some technical features that are known in the art have not been described in detail in order to avoid obscuring the utility model.

According to one aspect of the present utility model, an air-cooled heat dissipating bracket is provided. The air-cooled heat dissipation bracket not only can cool and dissipate heat of the battery, but also can serve as a bracket to support the battery. The air cooling channel of the air cooling radiating bracket is isolated from the battery, so that the battery is prevented from being corroded by dirt. Based on this, according to another aspect of the present utility model, there is provided a power supply device that may include a battery and the air-cooled heat dissipation bracket, and the battery may be located on an outer side surface of the air-cooled heat dissipation bracket. The power supply device may be used for various types of powered equipment including, but not limited to, cleaning robots and the like. Based on this, according to still another aspect of the present utility model, there is provided a cleaning robot including the power supply device.

As shown in fig. 1-2, a typical cleaning robot 300 may include a garbage collection device 310, a dust removal fan 320, a traveling device 330, and a power supply device 200. The garbage collection device 310 may include a screen and a collection box. An air inlet line 321 of the dust removing fan 320 may be connected to the garbage collecting device 310. The air outlet duct 322 of the dust removing fan 320 may communicate with the outside from the rear of the cleaning robot 300, for example. The cleaning robot 300 may include a mounting chassis 340. The mounting chassis 340 may be provided with a road wheel mounting groove 331 and a dust suction port (not shown). The suction port may be in communication with an inlet of the garbage collection device 310. When the dust removing fan 320 starts to operate, the dust removing fan 320 may guide the air flow to flow into the garbage collection device 310 from the dust suction port, and then sequentially pass through the air inlet pipe 321 and the air outlet pipe 322 of the dust removing fan 320 and then be discharged to the outside of the cleaning robot 300. In this process, the external air flow may carry the ground fine dust and dirt into the dust collection device 310 and be filtered by the filter screen to remain in the dust collection device 310. Thereby, the cleaning robot 300 can realize a function of cleaning floor waste. The running gear 330 may include running wheels, which may be installed in the running wheel installation groove 331. In the embodiment shown in fig. 1-2, the running gear 330 includes a pair of running wheels that are disposed on either side of the power supply device 200.

As shown in fig. 4-5, the power supply device 200 may include a battery 210 and any of the air-cooled heat-dissipating racks 100 described below. The power supply device 200 may supply power to the electric devices of the cleaning robot 300. The power supply device 200 may include one or more batteries 210, the specific number of which is not limited herein. As shown in fig. 7-8 and 9b, the air-cooled heat dissipation bracket 100 may include an air inlet end 110 and an air outlet end 120 disposed opposite to each other, and an outer side surface connected between the air inlet end 110 and the air outlet end 120. Alternatively, the air-cooled heat sink bracket 100 may have an elongated structure. The air inlet end 110 and the air outlet end 120 may be opposite ends along the longitudinal direction of the air-cooled heat sink bracket 100. Alternatively, the air-cooled heat dissipation bracket 100 may have other shapes, such as an L-shape, or the like. The end surfaces of the air inlet end 110 and the air outlet end 120 can be designed into various shapes according to actual needs, and the end surfaces of the air inlet end 110 and the air outlet end 120 can be the same or different. The air inlet end 110 and the air outlet end 120 may have end caps, or may be integrally formed with other portions of the air-cooled heat dissipation bracket 100.

The air inlet end 110 and the air outlet end 120 may be respectively provided with a bracket air inlet 111 and a bracket air outlet 121. The rack air inlet 111 may be used to guide an external air flow into the air-cooled heat dissipation rack 100, and the rack air outlet 121 may be used to guide the air flow in the air-cooled heat dissipation rack 100 to be discharged to the outside. An air cooling channel 140 communicating the bracket air inlet 111 and the bracket air outlet 121 may be disposed in the air cooling heat dissipation bracket 100. Alternatively, the air cooling channels 140 may be machined in bulk material, such as by drilling. Alternatively, the air cooling passage 140 may be formed by casting. Solid materials can be filled between the side surfaces of the air cooling channels 140 and the outer side surfaces of the air cooling heat dissipation bracket 100 to improve heat conduction efficiency. The solid material may be a thermally conductive material. Preferably, the air-cooled heat dissipation bracket 100 may be made of a material having good heat conduction properties. For example, the air-cooled heat sink bracket 100 may be made of a metallic material. Illustratively, the air-cooled heat sink bracket 100 may be made of magnesium alloy. Compared with other heat conducting materials, the magnesium alloy has the advantages of good heat conducting performance, small density, convenient processing and the like. The air-cooled heat dissipation bracket 100 made of magnesium alloy has good cooling effect, and the whole device is light, and has little influence on the whole weight of the cleaning robot 300, so the duration of the cleaning robot 300 adopting the air-cooled heat dissipation bracket 100 is hardly influenced.

Alternatively, the air-cooled heat sink bracket 100 may have an elongated structure. The air inlet end 110 and the air outlet end 120 may be opposite ends along the longitudinal direction of the air-cooled heat sink bracket 100. The batteries 210 may be more regularly arranged on the air-cooled heat dissipation bracket 100, so that the power supply device 200 is more compact and compact. Alternatively, the air cooling channels 140 may extend along the longitudinal direction of the air cooling heat sink bracket 100. The air cooling channel 140 may be linear to facilitate processing. Alternatively, the air-cooled heat dissipation bracket 100 may have other shapes, such as an L-shape, or the like. In this case, the air cooling passage 140 may have an adaptive shape. The curved shape of the air cooling channel 140 can increase the length of the path through which the air flows in the air cooling support 100, and can improve the heat dissipation efficiency. The bracket air inlet 111 and the bracket air outlet 121 can be designed into various sizes and shapes according to actual needs, and the shapes and the sizes of the bracket air inlet 111 and the bracket air outlet 121 can be the same or different. In the embodiment shown in fig. 8 and 9b, the bracket air inlet 111 and the bracket air outlet 121 are both in the form of short pipes with small apertures, so as to facilitate connection of various pipes for guiding the air flow, such as hoses, etc. As shown in fig. 7, the rack air inlet 111 may be connected with an air inlet duct 240. The air inlet duct 240 may be connected to various types of fans, and air flow generated by the fans enters the air cooling channel 140 through the air inlet duct 240 and the bracket air inlet 111, and then is discharged out of the air cooling heat dissipation bracket 100 through the bracket air outlet 121. During this process, the flowing air flow may carry away heat from the air-cooled heat sink bracket 100. For example, the bracket outlet 121 may be connected with an outlet duct 250. The air outlet duct 250 may be connected to an air outlet hole 350 on the mounting chassis 340 of the cleaning robot 300. The air flow carrying the heat may be discharged to the outside of the cleaning robot 300 through the exhaust hole 350. In the illustrated embodiment, the exhaust hole 350 is located at the bottom of the cleaning robot 300. In other embodiments, not shown, the exhaust holes 350 may also be provided at any other suitable location on the cleaning robot 300, such as at the front, rear, both sides or top of the cleaning robot 300, etc. Considering that the temperature of the air flow discharged from the air discharge hole 350 may be high, it is preferable that the air discharge hole 350 be provided at a place where the user does not normally touch, for example, at the bottom of the cleaning robot 300.

The outer side of the air-cooled heat sink bracket 100 may include a battery heat exchange surface 130 for heat exchange with the battery 210. The battery heat exchange surface 130 may be designed in various suitable forms according to the type and shape of the battery 210 to be adapted, and one battery heat exchange surface 130 may be adapted to one battery 210, or may be adapted to a plurality of batteries 210. Alternatively, the battery 210 may be closely attached to the battery heat exchanging surface 130, so that the heat generated by the battery 210 may be quickly transferred to the air-cooled heat dissipating bracket 100. Desirably, more of the surface of the battery can be conformed to the battery heat exchange surface 130, or otherwise leave less or little air between the battery and the battery heat exchange surface 130, to increase the heat transfer efficiency. Alternatively, the battery and the battery heat exchange surface 130 may be filled with various suitable heat transfer media to expel air therebetween. Optionally, the heat conducting medium may also have a certain adhesion. Illustratively, the thermally conductive medium may be any suitable thermally conductive glue that is currently available.

The air-cooled heat dissipation bracket 100 provided by the utility model not only can play a role in heat dissipation of the battery 210, but also can play a role in support. The air-cooled heat dissipation bracket 100 can guide air flow to enter the air-cooled heat dissipation bracket 100 from the bracket air inlet 111, and can take away heat on the air-cooled heat dissipation bracket 100 in the process of flowing through the air cooling channel 140, so as to dissipate heat of the battery 210 which can exchange heat with the battery heat exchange surface 130. The inventors have found that even if the battery 210 is charged using a fast charge method or the performance of the electric device (e.g., the dust removing fan 320) is completely released, the temperature of the battery 210 can be effectively prevented from reaching the over-temperature protection point. Moreover, since the battery 210 is located on the outer side of the air-cooled heat dissipation bracket 100 and the air-cooled channel 140 is disposed inside, the air-cooled channel 140 and the battery 210 can be isolated from each other, so that the battery and the battery protection board can be prevented from being short-circuited and corroded by water mist, soy sauce and/or fine dust and other impurities possibly carried by the air flow flowing in the air-cooled channel 140. Furthermore, the structure of heat dissipation by using the air cooling technology is relatively simple, and the overall mass of the electric equipment (for example, the cleaning robot 300) adopting the air cooling heat dissipation bracket 100 is not excessively increased, so that the duration of the electric equipment is not significantly affected. In addition, as compared with the case where the other face such as the end face is set as the battery heat exchange face, setting at least a part of the outer side face of the air-cooled heat dissipation bracket 100 as the battery heat exchange face 130 can make the area of the air-cooled heat dissipation bracket 100 that exchanges heat with the battery 210 larger, more favorable for heat transfer between the air-cooled heat dissipation bracket 100 and the battery 210, and therefore can improve the heat dissipation efficiency of the air-cooled heat dissipation bracket 100; in addition, the air-cooled heat dissipation bracket 100 can expose other parts of the battery 210 to the outside, and the battery 210 can dissipate heat through the exposed parts.

For example, as shown in fig. 6-7 and 9a-9b, the air-cooled channel 140 may include a plurality of air-cooled sub-channels 141 arranged side-by-side. The cross-section of the plurality of air-cooling sub-channels 141 may be diamond-shaped, circular, square, etc. The plurality of air-cooling sub-passages 141 may have the same shape and size, or may have different shapes and sizes, which are not particularly limited herein. The channel air inlets 1411 of the plurality of air-cooling sub-channels 141 may all be in communication with the bracket air inlet 111, and the channel air outlets 1413 of the plurality of air-cooling sub-channels 141 may all be in communication with the bracket air outlet 121. After the external air flow is guided into the air-cooled heat dissipation bracket 100 through the bracket air inlet 111, the air flow can flow in the plurality of air-cooled sub-channels 141 towards the air outlet end 120. It is noted that the rack air inlet 111 may be in direct communication with the channel air inlet 1411 or may be in indirect communication with the channel air inlet 1411 (e.g., via a cavity formed therebetween, as will be described in more detail below). Similarly, the bracket air outlet 121 may be in direct communication with the channel air outlet 1413 or may be in indirect communication with the channel air outlet 1413 (e.g., via a cavity formed therebetween, as will be described in greater detail below). By providing the plurality of air cooling sub-channels 141, the contact area between the air flow and the air cooling support 100 can be enlarged, and the heat dissipation efficiency of the air cooling support 100 is improved.

For example, as shown in fig. 9b, the channel air inlets 1411 of the plurality of air-cooled sub-channels 141 and the rack air inlets 111 may be spaced apart and may form an air intake buffer chamber 1412, and the air intake buffer chamber 1412 may be communicated between the channel air inlets 1411 of the plurality of air-cooled sub-channels 141 and the rack air inlets 111. An air intake buffer cavity 1412 exists between the channel air intake 1411 of all air-cooled sub-channels 141 and the rack air intake 111. After being guided into the air-cooled heat dissipation bracket 100 through the bracket air inlet 111, the external air flow enters the air inlet buffer cavity 1412 and then enters the air-cooled sub-channels 141. The air intake buffer cavity 1412 may be formed by separating the channel air inlet 1411 from the bracket air inlet 111, and the air intake buffer cavity 1412 may be designed into various sizes according to actual needs. The air inlet buffer cavity 1412 can reduce the resistance of air flow entering the air cooling heat dissipation bracket 100 through the bracket air inlet 111, and can make the air flow more uniformly enter the air cooling sub-channels 141, thereby improving the heat dissipation effect. And the intake buffer cavity 1412 can stabilize the incoming airflow, thereby reducing vibration. In addition, on the premise that the fan continuously inputs positive pressure air flow into the air inlet buffer cavity 1412 through the bracket air inlet 111, because the cross sectional area of the air inlet buffer cavity 1412 is larger than the sum of the cross sectional areas of the air cooling sub-channels 141, the flow speed of the air flow in the air cooling sub-channels 141 is larger, and the flow speed in the air inlet buffer cavity 1412 is smaller, the pressure potential energy of the air flow in the air inlet buffer cavity 1412 is larger according to the Bernoulli principle, so that a positive pressure difference can be formed between the air inlet buffer cavity 1412 and the air cooling sub-channels 141, and the positive pressure difference can push the air flow to smoothly enter the air cooling sub-channels 141 from the air inlet buffer cavity 1412, thereby improving the cooling effect.

Illustratively, as shown in fig. 9b, the channel air outlets 1413 of the plurality of air-cooled sub-channels 141 and the rack air outlets 121 may be spaced apart and may form an air-out buffer cavity 1414, and the air-out buffer cavity 1414 may be communicated between the channel air outlets 1413 of the plurality of air-cooled sub-channels 141 and the rack air outlets 121. An air-out buffer cavity 1414 exists between the channel air outlets 1413 of all the air-cooled sub-channels 141 and the bracket air outlets 121. When the air flow flowing in the air-cooling sub-channels 141 is about to be discharged to the outside of the air-cooling heat-dissipating bracket 100, the air flow enters the air-out buffer cavity 1414 and is then discharged to the outside of the air-cooling heat-dissipating bracket 100 through the bracket air outlet 121. The air-out buffer cavity 1414 may be formed by separating the channel air-out port 1413 and the bracket air-out port 121, and the air-out buffer cavity 1414 may be designed into various sizes according to actual needs. The air-out buffer cavity 1414 can smoothly discharge the air flow of the air-cooling sub-channels 141, so as to reduce the pressure at the channel air outlet 1413 of the air-cooling sub-channels 141, and the air flow at the channel air inlet 1411 can smoothly enter the air-cooling sub-channels 141. And the air-out buffer cavity 1414 can also play a role in buffering and stabilizing the air flow discharged from the channel air outlet 1413, so that the air flow can be uniformly discharged from the bracket air outlet 121, and vibration is reduced. Since the air-out buffer cavity 1414 can be communicated with the outside through the bracket air outlet 121, the air pressure in the air-out buffer cavity 1414 is approximately equal to the atmospheric pressure, so that the air flow in the air-cooling sub-channels 141 can be ensured to smoothly enter the air-out buffer cavity 1414.

Illustratively, as shown in FIG. 9a, the density of air-cooled sub-channels 141a located in the edge region of the air-cooled heat sink bracket 100 adjacent to the outer side may be greater than the density of air-cooled sub-channels 141b located in the center region of the air-cooled heat sink bracket 100. Since the outer side surface of the air-cooled heat dissipation bracket 100 includes the battery heat exchange surface 130 for heat exchange with the battery, the cooling effect can be enhanced by disposing more air-cooled sub-channels 141a in the edge region near the outer side surface. Compared with the edge area, the cooling effect of the air cooling sub-channel 141b battery in the central area of the air cooling support 100 is poor, so that fewer air cooling sub-channels 141b can be arranged in the central area, thereby achieving the purposes of simplifying the structure and improving the mechanical strength of the air cooling support 100.

For example, as shown in fig. 7 and 9b, the air-cooled heat sink bracket 100 may include a thermally conductive bracket 150, a first end cap 160, and a second end cap 170. Both ends of the heat conductive bracket 150 may be provided with a first groove 151 and a second groove 152, respectively. The air cooling passage 140 is disposed on the heat conductive bracket 150 and communicates between the first groove 151 and the second groove 152. The first grooves 151 and the second grooves 152 may have various forms such as hemispherical grooves or prismatic grooves, and the first grooves 151 and the second grooves 152 may have the same form or may have different forms. The openings of the first groove 151 and the second groove 152 may have any orientation. Preferably, the first groove 151 and the second groove 152 may be recessed inward from the end surface of the thermally conductive holder 150. That is, the openings of the first and second grooves 151 and 152 may not be located at the side of the heat conductive bracket 150, thereby not occupying space on the outer side of the heat conductive bracket 150. The outer side of the thermally conductive holder 150 may be entirely used to form the battery heat exchange surface 130. With a certain volume of the battery 210, the space occupied by the air-cooled heat dissipation bracket 100 can be reduced. In this case, the air cooling passage 140 may extend from the groove bottom wall of the first groove 151 to the groove bottom wall of the second groove 152. Of course, in an embodiment not shown, the openings of the first and second grooves may also be directed to the sides of the thermally conductive holder 150. In this case, the opening directions of the first groove and the second groove may be the same, and all face the same side of the heat conductive bracket 150, and at this time, the first groove, the second groove, and the air cooling passage form a substantially C-shape. Alternatively, the openings of the first and second grooves may also be oriented toward different sides of the thermally conductive holder 150. Alternatively, one of the first and second grooves has an opening facing a side surface of the thermally conductive holder 150 and the other facing an end surface of the thermally conductive holder 150. One skilled in the art can choose this as desired. In the case of one or more of the first and second grooves facing the side, the air cooling passage may be connected to a groove side wall of the groove facing the side.

The first and second end caps 160 and 170 may be snapped over the first and second grooves 151 and 152, respectively. The first and second end caps 160 and 170 may be matched to the open forms of the first and second grooves 151 and 152, respectively. The first and second end caps 160 and 170 may form the air inlet and outlet ends 110 and 120, respectively, as previously described. The rack air inlet 111 may be provided on the first end cap 160, and the rack air outlet 121 may be provided on the second end cap 170. When the first end cap 160 is snapped onto the first groove 151, the first end cap 160 may be spaced apart from a bottom wall of the first groove 151, thereby forming a cavity between the first end cap 160 and the bottom wall of the groove, which may be the air intake buffer cavity 1412. Alternatively, a first recess may be provided on an inner surface of the first end cap 160 facing the first groove 151. The first concave portion may be cylindrical, horn-shaped, hemispherical, etc. with uniform thickness. In the case of having the first recess portion, the air intake damper chamber 1412 may be formed even if the first end cap 160 abuts against the groove bottom wall of the first groove 151, but the first end cap 160 may be disposed apart from the groove bottom wall of the first groove 151. Similarly, when the second end cap 170 is snapped over the second groove 152, the second end cap 170 may be spaced apart from the groove bottom wall of the second groove 152, thereby forming a cavity between the second end cap 170 and the groove bottom wall, which may be the air out buffer cavity 1414. Optionally, a second recess may be provided on an inner surface of the second end cap 170 facing the second groove 152. The second concave portion may be cylindrical, horn-shaped, hemispherical, etc. with uniform thickness. In the case of having the second recess portion, the air-out buffer chamber 1414 may be formed even if the second end cap 170 abuts against the bottom wall of the second groove 152, but the second end cap 170 may be disposed spaced apart from the bottom wall of the second groove 152. One skilled in the art can choose this as desired.

By providing the air-cooled heat dissipation bracket 100 as a split structure including the heat conduction bracket 150, the first end cover 160, and the second end cover 170, the air-cooled channel 140, the air-in buffer cavity 1412, and the air-out buffer cavity 1414 can be more conveniently processed, thereby reducing processing costs. Moreover, the split structure may have a greater degree of freedom in selecting materials. The heat conduction bracket 150 mainly plays a role of heat conduction, and a plurality of air cooling sub-channels 141 need to be processed, so that materials with better heat conduction performance, higher mechanical strength and more favorable processing can be selected. In contrast, the materials of the first end cap 160 and the second end cap 170 may have more room for selection. In this way, costs can be reduced.

The battery heat exchange surface 130 may be located on the thermally conductive holder 150, the first end cap 160, and/or the second end cap 170. The thermally conductive holder 150 may serve as a primary heat sink structure with the battery heat exchange surface 130 being located primarily on the outer side of the thermally conductive holder 150. Since the first end cap 160 and/or the second end cap 170 may also have a certain thickness, the battery heat exchange surface 130 may also be located on the outer side of the first end cap 160 and/or the second end cap 170. As shown in fig. 4 to 5 and 7, the batteries 210 may be arranged in multiple layers along the longitudinal direction of the air-cooling heat dissipation bracket 100, and the overall length of the multiple layers of batteries 210 may be equivalent to the total length of the air-cooling heat dissipation bracket 100. Of course, only one layer of battery 210 may be provided, and the length of the layer of battery 210 may be equivalent to the total length of the air-cooled heat dissipation bracket 100. It should be noted that, even if the air-cooled heat dissipation bracket 100 does not adopt the above-described split structure, but adopts an integral structure or other split structure, the battery heat exchange surface 130 may penetrate the entire outer side surface of the air-cooled heat dissipation bracket 100 in the longitudinal direction. That is, the battery heat exchange surface 130 may extend from an end surface of one end of the air-cooled heat dissipation bracket 100 to an end surface of the other end. The length of the battery heat exchange surface 130 is an integer multiple of the length of the battery 210 with which it can exchange heat. When the battery 210 is mounted to the battery heat exchange surface 130, both ends of the battery 210 may be flush with both ends of the air-cooled heat dissipation bracket 100, thereby making the structure of the power supply device 200 more compact and compact.

As previously described, the battery heat exchange surface 130 may be abutted with a multi-layer battery 210. Each layer may include a plurality of cells 210, and the plurality of cells 210 may be distributed around the air-cooled heat dissipation bracket 100, so that the outer space of the air-cooled heat dissipation bracket 100 may be fully utilized. Illustratively, as shown in fig. 9a, the exterior side of the air-cooled heat dissipating bracket 100 may include a plurality of battery heat exchanging surfaces 130 disposed about the air-cooled heat dissipating bracket 100. Each battery heat exchange surface 130 may abut one battery 210 as seen in a circumferential direction around the air-cooled heat sink bracket 100, as shown in fig. 6. Along the longitudinal direction of the air-cooled heat sink bracket 100, each battery heat exchange surface 130 may abut a plurality of batteries 210, as shown in fig. 4-5. For example, any adjacent two battery heat exchange surfaces 130 of the plurality of battery heat exchange surfaces 130 may be connected to each other. In this way, the area of the outer side surface of the air-cooled heat dissipation bracket 100 can be fully utilized, so that the batteries 210 can be mounted as much as possible under the condition that the volume of the air-cooled heat dissipation bracket 100 is unchanged. Based on this, the outer shape and structure of the air-cooled heat dissipation bracket 100 may be designed according to the intermediate spatial shape formed after the plurality of cells 210 are abutted against each other. In the illustrated embodiment, four cells 210 are enclosed in a circumferential direction around the air-cooled heat sink bracket 100, and the cross section of the air-cooled heat sink bracket 100 has a structure similar to a "cross" shape. When three cells 210 are enclosed, the cross section of the air-cooled heat rejection bracket 100 has a structure similar to a triangle.

According to another aspect of the present utility model, as shown in fig. 3-7, a power supply device 200 is provided, the power supply device 200 may include a battery 210 and any of the air-cooled heat dissipation brackets 100 described above, and the battery 210 may rest on the battery heat exchange surface 130. Such a power supply device 200 can mount the battery 210 on the air-cooled heat dissipation bracket 100 and cool the battery 210 on the air-cooled heat dissipation bracket 100. The power supply device 200 has all the technical effects described above for the air-cooled heat dissipation bracket 100, and for brevity, will not be described herein.

Illustratively, as shown in fig. 6, the battery 210 may be multiple and disposed around the air-cooled heat sink bracket 100. This makes it possible to fully utilize the area of the outer surface of the air-cooled heat dissipation bracket 100, so that the battery 210 is mounted as much as possible while the volume of the air-cooled heat dissipation bracket 100 is almost unchanged. And a plurality of batteries 210 are arranged around the air-cooled heat dissipation bracket 100, so that the integrity of the power supply device 200 is stronger, and the occupied space of the whole device is reduced.

As illustrated in fig. 4-5, the power supply device 200 may further include a battery fixing member 220, the battery fixing member 220 may fix the plurality of batteries 210 together, and the air-cooling heat dissipation bracket 100 may be interposed between the plurality of batteries 210. In the illustrated embodiment, the battery mount 220 secures the plurality of batteries 210 together at their end faces. One form of battery mount 220 is shown by way of example only, and in other embodiments not shown, the battery mount may be in the form of a string to secure the plurality of batteries by strapping to the sides of the plurality of batteries. It will be appreciated that the battery holder may be in a variety of other forms and will not be described in detail herein. The air-cooled heat sink bracket 100 may be interposed between the plurality of batteries 210. The air-cooled heat sink bracket 100 may be manufactured to have a shape that is adapted to the space between the plurality of cells 210. Preferably, the air-cooled heat dissipation bracket 100 may have a larger profile than the space, so that the air-cooled heat dissipation bracket 100 may be mounted in the space by interference fit. Through inserting the air-cooled heat dissipation bracket 100 in the middle of a plurality of batteries 210, the lamination of the batteries 210 and the battery heat exchange surface 130 of the air-cooled heat dissipation bracket 100 can be ensured, so that the heat dissipation efficiency is ensured, and other structures are not required to fix the air-cooled heat dissipation bracket 100, so that the structure can be simplified and the cost can be reduced.

The battery may be of any form, for example, in other embodiments not shown, the battery may be square, and correspondingly, the battery heat exchange surface may be a matched square plane, and the cross section of the air-cooled heat dissipation bracket is approximately diamond. Preferably, the battery 210 may be a cylindrical battery and the battery heat exchange surface 130 may be an arcuate surface. Cylindrical batteries are one of the most commonly used battery formats in the prior art, and such a power supply device 200 is more versatile and can be easily replaced when the battery 210 is depleted.

Illustratively, as shown in fig. 3, the power supply device 200 may further include a battery pack case 230, the battery 210 and the air-cooled heat dissipation bracket 100 may be enclosed in the battery pack case 230, and the bracket air inlet 111 and the bracket air outlet 121 may be in communication with the outside. The bracket air inlet 111 and the bracket air outlet 121 may be in communication with the outside through a pipe, or the bracket air inlet 111 and the bracket air outlet 121 may themselves extend out of the battery pack case 230 in a tubular shape. In the illustrated embodiment, the rack air inlet 111 communicates with the outside through an air inlet duct 240, and the rack air outlet 121 communicates with the outside through an air outlet duct 250. The battery pack housing may be of any shape and size, and the illustration shows a rectangular parallelepiped battery pack housing 230 by way of example only. The battery pack case 230 may protect the power supply device 200 from the external environment.

1-2, the cleaning robot 300 may include a dust removal blower 320 and a power supply device 200 as described above. Referring to fig. 3 to 9b in combination, the rack air inlet 111 of the air-cooled heat dissipation rack 100 of the power supply apparatus 200 may be in communication with the air outlet pipe 322 of the dust removing fan 320, and the rack air outlet 121 of the air-cooled heat dissipation rack 100 of the power supply apparatus 200 may be in communication with the outside of the cleaning robot 300. When the dust removing fan 320 is in a working state, the air quantity is large, and when the air flow passes through the dust removing fan 320, a part of the air flow enters the bracket air inlet 111 through the air outlet pipeline 322, so that the cooling function of the air cooling heat dissipation bracket 100 is realized. However, the air flow generated by the dust removing fan 320 may carry impurities such as water mist and soy sauce. The air-cooled heat dissipation bracket 100 can isolate the air-cooled channel 140 from the battery 210, so that water mist, soy sauce and the like in the air flow of the air-cooled channel 140 can be ensured not to erode the battery and the protection board. The air flow enters the heat conduction bracket 150 from the air outlet pipeline 322 of the dust removal fan 320, and is discharged to the outside of the cleaning robot 300 through the bracket air outlet 121, so that the heat of the battery 210 can be dissipated, and in the process, the air flow is isolated from the battery 210 relatively, so that the corrosion influence of pollutants such as water mist and soy sauce carried by the air flow on the battery can be avoided. The cleaning robot 300 can realize air cooling without adding an additional fan, can greatly improve the energy efficiency of a system, reduces the noise of the system, and does not significantly affect the total weight of the cleaning robot 300. And the cleaning robot 300 does not need to be internally provided with a circulating system, so that the complexity of the system is reduced and the reliability of the system is improved.

In the description of the present utility model, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front", "rear", "upper", "lower", "left", "right", "transverse", "vertical", "horizontal", and "top", "bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely for convenience of describing the present utility model and simplifying the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, without limiting the scope of protection of the present utility model; the orientation terms "inner" and "outer" refer to the inner and outer relative to the outline of the components themselves.

For ease of description, regional relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein to describe regional positional relationships of one or more components or features to other components or features illustrated in the figures. It will be understood that the relative terms of regions include not only the orientation of the components illustrated in the figures, but also different orientations in use or operation. For example, if the element in the figures is turned over entirely, elements "over" or "on" other elements or features would then be included in cases where the element is "under" or "beneath" the other elements or features. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". Moreover, these components or features may also be positioned at other different angles (e.g., rotated 90 degrees or other angles), and all such cases are intended to be encompassed herein.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present utility model. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, components, assemblies, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present utility model and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the utility model described herein may be implemented in sequences other than those illustrated or otherwise described herein.

The present utility model has been illustrated by the above-described embodiments, but it should be understood that the above-described embodiments are for purposes of illustration and description only and are not intended to limit the utility model to the embodiments described. In addition, it will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that many variations and modifications are possible in light of the teachings of the utility model, which variations and modifications are within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (17)

1. The air-cooled heat dissipation bracket is characterized by comprising an air inlet end, an air outlet end and an outer side surface connected between the air inlet end and the air outlet end,

the air inlet end and the air outlet end are respectively provided with a bracket air inlet and a bracket air outlet, an air cooling channel which is communicated with the bracket air inlet and the bracket air outlet is arranged in the air cooling radiating bracket, and the outer side surface of the air cooling radiating bracket comprises a battery heat exchange surface for heat exchange with a battery.

2. An air-cooled heat dissipation bracket according to claim 1 and wherein said air-cooled plenum comprises a plurality of air-cooled sub-plenums disposed side-by-side, wherein the plenum air inlets of said plurality of air-cooled sub-plenums are all in communication with said bracket air inlet, and wherein the plenum air outlets of said plurality of air-cooled sub-plenums are all in communication with said bracket air outlet.

3. An air-cooled heat sink bracket as in claim 2, wherein,

the channel air inlets of the air cooling sub-channels and the bracket air inlets are spaced apart to form an air inlet buffer cavity, and the air inlet buffer cavity is communicated between the channel air inlets of the air cooling sub-channels and the bracket air inlets; and/or

The channel air outlets of the air cooling sub-channels are spaced apart from the bracket air outlets to form an air outlet buffer cavity, and the air outlet buffer cavity is communicated between the channel air outlets of the air cooling sub-channels and the bracket air outlets.

4. An air-cooled heat sink bracket according to claim 2, wherein the density of air-cooled sub-channels in an edge region of the air-cooled heat sink bracket adjacent to the outer side surface is greater than the density of air-cooled sub-channels in a central region of the air-cooled heat sink bracket.

5. An air-cooled heat sink bracket according to claim 1, comprising:

the air cooling channel is arranged on the heat conduction bracket and is communicated between the first groove and the second groove; and

the first end cover and the second end cover are respectively buckled on the first groove and the second groove to form the air inlet end and the air outlet end, the bracket air inlet is arranged on the first end cover and communicated with the first groove, the bracket air outlet is arranged on the second end cover and communicated with the second groove,

Wherein the battery heat exchange surface is located on the thermally conductive bracket, the first end cap, and/or the second end cap.

6. An air-cooled heat sink bracket as in claim 5, wherein the first and second grooves are recessed inwardly from end surfaces of both ends of the thermally conductive bracket, respectively.

7. An air-cooled heat sink bracket according to claim 1, wherein the air inlet end and the air outlet end are disposed opposite each other along a longitudinal direction of the air-cooled heat sink bracket.

8. An air-cooled heat sink bracket according to claim 7 wherein the battery heat exchange surface extends through the outer side of the air-cooled heat sink bracket in the longitudinal direction, the length of the battery heat exchange surface being an integer multiple of the length of a battery with which it is heat exchangeable.

9. An air-cooled heat sink bracket according to claim 1, wherein the outer side surface comprises a plurality of battery heat exchange surfaces disposed about the air-cooled heat sink bracket.

10. An air-cooled heat sink bracket according to claim 9 wherein any adjacent two of the plurality of battery heat exchange surfaces meet each other.

11. A power supply device, characterized in that it comprises a battery and an air-cooled heat-dissipating support according to any one of claims 1-10, said battery being in abutment against the battery heat-exchanging surface.

12. The power supply device of claim 11, wherein the battery is plural and disposed around the air-cooled heat sink bracket.

13. The power supply device according to claim 12, further comprising a battery fixing member that fixes the plurality of batteries together, the air-cooled heat dissipation bracket being interposed between the plurality of batteries.

14. The power supply device of claim 11, wherein the battery is a cylindrical battery and the battery heat exchange surface is an arcuate surface.

15. The power supply device of claim 11, further comprising a battery pack housing, wherein the battery and the air-cooled heat sink support are enclosed within the battery pack housing, and wherein the support air inlet and the support air outlet are in communication with an exterior of the battery pack housing.

16. A cleaning robot comprising a dust removing blower and the power supply device according to any one of claims 11 to 15,

the air inlet of the air-cooled heat dissipation bracket of the power supply device is communicated with an air outlet pipeline of the dust removal fan, and the air outlet of the bracket of the air-cooled heat dissipation bracket of the power supply device is communicated with the outside of the cleaning robot.

17. The cleaning robot according to claim 16, wherein a bottom of the cleaning robot is provided with an exhaust hole, and the stand air outlet communicates with an outside of the cleaning robot via the exhaust hole.