Battery cooling device, unmanned equipment charging station and unmanned equipment system

Abstract

The invention relates to the technical field of battery heat dissipation, in particular to a battery cooling device, an unmanned equipment charging station and an unmanned equipment system. The battery cooling device comprises a water tank, an atomizer, a fan and a rectifying part, wherein the water tank is provided with an atomizing cavity and an airflow channel communicated with the atomizing cavity; the atomizer is arranged in the water tank and is used for atomizing liquid in the atomizing cavity into fog drops for cooling the battery; the fan is arranged in the water tank and used for blowing fog drops entering the airflow channel out of the airflow channel and blowing the fog drops to the battery. The rectifying part is arranged on the air outlet side of the fan and used for converting rotating airflow blown out by the fan into straight airflow. The battery cooling device can be used for an unmanned equipment charging station of an unmanned equipment system, and the battery cooling device can enable fog drops to uniformly cover the battery so as to improve the uniformity and efficiency of battery heat dissipation.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of battery cooling, in particular to a battery cooling device, an unmanned device charging station and an unmanned device system. BACKGROUND

[0002] In the related art, the battery of an unmanned device (for example, a drone, an unmanned vehicle, a robot, etc.) is cooled by air cooling or water cooling to accelerate heat dissipation. However, air cooling is limited by the ambient temperature, and thus cannot effectively cool the battery in hot summer. Water cooling usually requires the battery to be immersed in water, but since most parts of the battery cannot be in contact with water, only a part of the battery can be immersed in water, which results in the other part of the battery not being effectively cooled.

[0003] In order to improve the cooling effect of the battery, the related art atomizes water and combines air flow to carry away the heat of the battery. Since water evaporation can carry away a large amount of heat, the water mist on the surface of the high-temperature battery will quickly evaporate and gasify, and the air flow brought by the fan further accelerates the evaporation speed of the water. In this way, the heat absorption efficiency is maximized, and the battery is quickly cooled in a short time.

[0004] However, the battery cooling device provided by the related art for cooling the battery by using water mist cannot uniformly cover the formed mist droplets on the battery to be cooled, and thus cannot improve the uniformity and efficiency of battery cooling. SUMMARY

[0005] The present application relates to the technical field of battery cooling, in particular to a battery cooling device, an unmanned device charging station and an unmanned device system.

[0006] Embodiments of the present application can be implemented as follows:

[0007] In a first aspect, the present application provides a battery cooling device, comprising:

[0008] a water tank, the water tank being provided with an atomization cavity and an air flow passage in communication with the atomization cavity;

[0009] an atomizer, the atomizer being arranged in the water tank and configured to atomize liquid in the atomization cavity into mist droplets for cooling the battery;

[0010] a fan, the fan being arranged in the water tank and configured to blow the mist droplets entering the air flow passage out of the air flow passage and towards the battery; and

[0011] a flow rectifying member, the flow rectifying member being arranged on an air outlet side of the fan and configured to convert the rotating air flow blown by the fan into straight air flow.

[0012] In an optional embodiment, the rectifying member is arranged in the airflow passage.

[0013] In an optional embodiment, the fan is arranged in the airflow passage.

[0014] In an optional embodiment, a support rib is arranged in the airflow passage, and the rectifying member is connected with the support rib.

[0015] In an optional embodiment, the rectifying member is provided with a plurality of air holes arranged in an array.

[0016] In an optional embodiment, the battery cooling device further comprises a battery connecting assembly provided with a containing space for placing the battery, and the airflow passage is oppositely arranged with the containing space so that the mist droplets blown out of the airflow passage can enter the containing space.

[0017] In an optional embodiment, the water tank comprises a liquid storage tank and an atomization tank, the liquid storage tank is provided with a liquid storage cavity, the atomization tank is provided with an atomization cavity, the liquid storage tank is connected with the atomization tank, the liquid storage cavity can store liquid and supplement the stored liquid to the atomization cavity, and the airflow passage is arranged in the liquid storage tank.

[0018] In an optional embodiment, the water tank further comprises a mist outlet passage, and the mist outlet passage is communicated with the airflow passage and the atomization cavity.

[0019] In an optional embodiment, the width of the mist outlet passage is narrower than the width of the atomization cavity.

[0020] In an optional embodiment, the water tank further comprises a diffuser provided with an expanding passage, the mist outlet passage is communicated with the airflow passage through the expanding passage, the expanding passage has a first end close to the mist outlet passage and a second end away from the mist outlet passage, and the caliber of the second end is larger than the caliber of the first end.

[0021] In an optional embodiment, a flow dividing rib is arranged in the expanding passage, and the flow dividing rib is used for dispersing the mist droplets entering the expanding passage from the mist outlet passage.

[0022] In an optional embodiment, the diffuser extends into the airflow passage, one end of the diffuser is provided with an air inlet along the axial direction of the airflow passage, and the other end of the diffuser is provided with a mist outlet; the air inlet is oppositely arranged with the rectifying member, and the mist outlet is used for outputting the mist droplets from the expanding passage.

[0023] In an optional embodiment, the diffuser is provided with an air outlet at the end away from the mist outlet passage, the air outlet is spaced apart from the top wall of the airflow passage, and the gap between the air outlet and the top wall of the airflow passage is oppositely arranged with the rectifying member.

[0024] In a second aspect, the present application provides an unmanned device charging station, comprising a battery, a charging device and the battery cooling device of any one of the preceding embodiments, the battery being detachably assembled to the battery cooling device, and the charging device and the battery being electrically connected when the battery is assembled to the battery cooling device to charge the battery.

[0025] In a third aspect, the present application provides an unmanned device system, comprising an unmanned device and the unmanned device charging station of the preceding embodiments, the battery being detachably assembled to the unmanned device.

[0026] The battery cooling device provided by the embodiments of the present application has the following advantages: the battery cooling device comprises a water tank, an atomizer, a fan and a rectifying member, the water tank is provided with an atomizing cavity and an airflow channel communicating with the atomizing cavity; the atomizer is arranged in the water tank and is used to atomize liquid in the atomizing cavity into mist droplets for cooling the battery; the fan is arranged in the water tank and is used to blow the mist droplets entering the airflow channel out of the airflow channel and towards the battery; and the rectifying member is arranged on the air outlet side of the fan and is used to convert the rotational airflow blown by the fan into straight airflow. In this way, the rectifying member can be used to improve the problem of vortex flow of the airflow blown by the fan, improve the uniformity of the air outlet, and use the uniform airflow to blow the mist droplets towards the battery, so that the mist droplets are more uniformly covered on the battery, thereby improving the uniformity and efficiency of battery heat dissipation.

[0027] The unmanned device charging station of the embodiments of the present application has all the advantages of the battery cooling device described above, for example, the rectifying member can be used to improve the problem of vortex flow of the airflow blown by the fan, improve the uniformity of the air outlet, and use the uniform airflow to blow the mist droplets towards the battery, so that the mist droplets are more uniformly covered on the battery, thereby improving the uniformity and efficiency of battery heat dissipation.

[0028] The unmanned device system of the embodiments of the present application has all the advantages of the unmanned device charging station described above, for example, the rectifying member can be used to improve the problem of vortex flow of the airflow blown by the fan, improve the uniformity of the air outlet, and use the uniform airflow to blow the mist droplets towards the battery, so that the mist droplets are more uniformly covered on the battery, thereby improving the uniformity and efficiency of battery heat dissipation. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0030] Figure 1 It is an exploded structural schematic diagram of the battery cooling device in the embodiments of the present application;

[0031] Figure 2It is a structure schematic view of the atomizing box, the opening and closing assembly and the atomizer in the embodiment of the present application.

[0032] Figure 3 It is a sectional view of the battery cooling device in the embodiment of the present application. Figure 1 ;

[0033] Figure 4 It is an enlarged view of the position IV in the embodiment of the present application. Figure 3

[0034] Figure 5 It is an enlarged view of the position V in the embodiment of the present application. Figure 1

[0035] Figure 6 It is a sectional view of the battery cooling device in the embodiment of the present application. Figure 2 ;

[0036] Figure 7 It is a sectional view of the liquid storage box, the atomizing box, the fan and the rectifying piece in the embodiment of the present application.

[0037] Figure legend: 010-battery cooling device; 100-liquid storage box; 110-liquid storage cavity; 120-liquid outlet; 200-atomizing box; 210-atomizing cavity; 211-mounting hole; 212-bottom shell; 220-supporting seat; 221-groove; 222-first avoiding space; 230-fixing piece; 231-second avoiding space; 300-atomizer; 310-atomizing sheet; 320-driving plate; 330-fixing sheet; 340-sealing ring; 400-opening and closing assembly; 410-floater; 411-floater body; 412-pushing piece; 413-rotating shaft; 414-hollow groove; 420-valve; 501-mist outlet; 510-mist outlet channel; 520-diffuser; 521-shunt rib; 522-air inlet; 523-air outlet; 600-air flow channel; 610-supporting rib; 700-fan; 710-rectifying piece; 711-air hole; 800-battery connecting assembly; 801-containing space; 850-charging plug. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0039] ​​Therefore, the following detailed description of the embodiments of the application provided in the drawings is not intended to limit the scope of the application claimed, but merely represents selected embodiments of the application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the application without creative labor fall within the scope of the application.

[0040] It should be noted that similar reference numbers and letters represent similar items in the following drawings, and therefore, once an item is defined in one drawing, it need not be further defined and explained in subsequent drawings.

[0041] In the description of the application, it should be noted that if the terms such as "upper", "lower", "inner", "outer", "vertical", "transverse", "horizontal" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the product of the application is normally placed, and are only for the convenience of describing the application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application.

[0042] In addition, if the terms "first", "second" and the like appear, they are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0043] It should be noted that the features in the embodiments of the application can be combined with each other without conflict.

[0044] The battery cell releases a large amount of heat in the case of large rate discharge or charge; among them, in the use process of large rate discharge, the temperature of the battery cell can reach more than 75℃.

[0045] However, battery charging usually needs to be carried out below 60℃; specifically, the temperature of the battery cell determines its chemical properties and also affects its charging performance. The battery cannot be charged at high temperature and needs to wait for its temperature to decrease to a certain condition before charging, otherwise it will seriously affect the service life of the battery.

[0046] In the case of frequent large rate charge and discharge, quickly restoring the discharged battery to the temperature range allowed for charging will significantly improve the operation efficiency of unmanned devices such as unmanned aerial vehicles, unmanned vehicles and the like using the battery to provide power, at the same time, it can protect the battery cell from high temperature and keep it in the normal working range, and is beneficial to prolong the service life of the battery.

[0047] In the related art, the battery of the unmanned device is cooled by air cooling or water cooling to accelerate heat dissipation. Since air cooling is limited by the ambient temperature, it cannot effectively cool the battery in hot summer. The water cooling method usually requires the battery to be immersed in water, but since most parts of the battery cannot be in contact with water, only a part of the battery can be immersed in water, which causes the other part of the battery to still not be effectively cooled. In order to improve the cooling effect of the battery, the related art atomizes water and combines air flow to take away the heat of the battery. Since water evaporation can take away a large amount of heat, the water mist on the surface of the high-temperature battery will quickly evaporate and gasify, and the air flow brought by the fan further accelerates the evaporation speed of the water, so that the water mist quickly gasifies and combines with the air flow to maximize the heat absorption efficiency and quickly cool the battery in a short time.

[0048] However, the battery cooling device provided by the related art for cooling the battery by using water mist cannot uniformly cover the formed mist droplets on the battery to be cooled, and thus cannot improve the uniformity and efficiency of battery heat dissipation.

[0049] Therefore, the battery cooling device, the unmanned device charging station and the unmanned device system provided in the embodiments can be used in the unmanned device charging station of the unmanned device system, and the battery cooling device can uniformly cover the mist droplets on the battery to improve the uniformity and efficiency of battery heat dissipation.

[0050] The embodiments provide an unmanned device system. The unmanned device system includes an unmanned device and an unmanned device charging station. The unmanned device charging station includes a battery, a charging device and a battery cooling device 010 (as shown in Figure 1 The battery is detachably mounted on the unmanned device to provide power for the unmanned device. The battery can be detached from the unmanned device and electrically connected to the charging device to charge the battery by using the charging device. The battery can also be cooled by using the battery cooling device 010 to ensure that the cooled battery can be reliably charged. That is, when the battery needs to be charged, the battery can be removed from the unmanned device and placed in the battery cooling device 010 to quickly dissipate heat and cool the battery by using the battery cooling device 010, so that the temperature of the battery is reduced to a chargeable temperature. Then, the charging device can charge the battery, which shortens the waiting time for battery cooling and is beneficial to improving the work efficiency of the unmanned device.

[0051] It should be noted that the unmanned device can be a drone, an unmanned vehicle or a robot, etc., which is not limited here.

[0052] Further, please refer to Figure 1 and Figure 2The battery cooling device 010 comprises a water tank and an atomizer 300; the water tank is provided with an atomizing cavity 210, and the atomizer 300 is arranged on the water tank and used to atomize the liquid in the atomizing cavity 210 into mist droplets for cooling the battery. In this way, the battery can be cooled by the mist droplets.

[0053] Further, the water tank comprises a liquid storage tank 100 and an atomizing tank 200, the liquid storage tank 100 is provided with a liquid storage cavity 110, the atomizing tank 200 has an atomizing cavity 210, the liquid storage tank 100 is connected with the atomizing tank 200, and the liquid stored in the liquid storage cavity 110 can be supplemented into the atomizing cavity 210; and the atomizer 300 is arranged on the atomizing tank 200. By supplementing the liquid from the liquid storage cavity 110 into the atomizing cavity 210, sufficient mist can be ensured, and the cooling effect of the battery can be ensured.

[0054] The connection mode of the atomizing tank 200 and the liquid storage tank 100 comprises but is not limited to connection by fasteners such as bolts, and one-piece forming.

[0055] It should be understood that in other embodiments, the battery cooling device 010 can only comprise the atomizing tank 200, that is, the battery cooling device 010 can not be provided with the liquid storage tank 100 for supplementing liquid.

[0056] Please refer to Figure 1 and Figure 2 The arrangement mode of the atomizer 300 on the atomizing tank 200 can be selected as required; in the embodiment, the bottom of the atomizing tank 200 is provided with a mounting hole 211 in communication with the atomizing cavity 210, the battery cooling device 010 further comprises a bottom shell 212, the atomizer 300 is arranged on the bottom outer wall of the atomizing tank 200 through the bottom shell 212, and the atomizer 300 is exposed from the mounting hole 211 to the atomizing cavity 210, so that the atomizer 300 is in contact with the liquid in the atomizing cavity 210 through the mounting hole 211 and atomizes the liquid in the atomizing cavity 210 into mist droplets.

[0057] The structure of the atomizer 300 is similar to that of the related art, which comprises an atomizing sheet 310 and a driving plate 320, the atomizing sheet 310 is connected with the driving plate 320, and both the atomizing sheet 310 and the driving plate 320 are assembled between the bottom shell 212 and the bottom of the atomizing tank 200, and the atomizing sheet 310 is exposed from the mounting hole 211 to the atomizing cavity 210 to be in contact with the liquid in the atomizing cavity 210 through the mounting hole 211.

[0058] Optionally, the atomizing sheet 310 can also be arranged on the bottom shell 212 through a fixing sheet 330, and a sealing ring 340 can also be arranged between the atomizing sheet 310 and the fixing sheet 330, so that the atomizing sheet 310 can be closely attached to the bottom of the atomizing tank 200 to improve the problem that the liquid in the atomizing cavity 210 leaks from the gap between the mounting hole 211 and the atomizing sheet 310 into the bottom shell 212 to cause the driving plate 320 to be short-circuited.

[0059] The bottom shell 212 is connected to the atomization box 200 in a manner including but not limited to fastening by fasteners such as bolts, clamping, or the like. A sealing rubber ring can be arranged between the bottom shell 212 and the atomization box 200.

[0060] Please refer to Figure 1 The battery cooling device 010 of the embodiment further comprises a battery connecting assembly 800, which has a containing space 801 for arranging a battery. When the battery is arranged in the containing space 801, the mist droplets generated by the atomization cavity 210 can be used to cool the battery in the containing space 801.

[0061] The structure of the battery connecting assembly 800 is similar to that of the related art, and will not be described here.

[0062] It should be understood that, in other embodiments, the water tank and the battery connecting assembly 800 are detachably connected. When the containing space 801 is not arranged with a battery, the water tank can be accommodated in the containing space 801, so as to reduce the overall volume of the battery cooling device 010, and facilitate the reduction of the packaging and transportation costs of the battery cooling device 010. The detachable connection manner of the water tank and the battery connecting assembly 800 includes but is not limited to clamping or fastening by fasteners such as bolts.

[0063] Optionally, please refer to Figure 1 and Figure 3 The battery cooling device 010 further comprises a charging plug 850 connected to the battery connecting assembly 800, and the charging plug 850 is connected to a charging device in a manner including but not limited to detachable connection (for example, plug-in connection) or fixed connection. When the battery is arranged in the containing space 801, the battery is plugged into the charging plug 850, so that the battery is connected to the charging device through the charging plug 850, and then the battery is charged by the charging device.

[0064] Optionally, the atomizer 300 can be electrically connected to the charging device through the charging plug 850, so that the atomizer 300 is powered by the charging device. Alternatively, in other embodiments, the atomizer 300 can be directly electrically connected to other power sources, which will not be specifically limited here.

[0065] Please refer to Figure 2 , Figure 3 and Figure 4 In the embodiment, the atomization box 200 is arranged at the bottom of the liquid storage tank 100. The bottom of the liquid storage tank 100 is provided with a liquid outlet 120 in communication with the liquid storage cavity 110, and the liquid in the liquid storage cavity 110 can enter the atomization cavity 210 through the liquid outlet 120. In this way, the liquid in the atomization cavity 210 can be replenished in time, so as to ensure sufficient mist and cooling effect of the battery.

[0066] Further, the battery cooling device 010 further comprises an opening and closing assembly 400, which is arranged at the liquid outlet 120 and is used to open or close the liquid outlet 120; when the opening and closing assembly 400 opens the liquid outlet 120, the liquid in the liquid storage cavity 110 enters the atomizing cavity 210 through the liquid outlet 120; when the opening and closing assembly 400 closes the liquid outlet 120, the liquid in the liquid storage cavity 110 no longer enters the atomizing cavity 210 through the liquid outlet 120. Through the arrangement of the opening and closing assembly 400, the liquid in the liquid storage cavity 110 can be supplemented into the atomizing cavity 210 as needed, thereby facilitating the atomizer 300 exposed to the atomizing cavity 210 to be kept at an optimal liquid level, i.e., enabling the atomizer 300 to work at an optimal liquid level condition, so as to ensure that the atomizer 300 reliably forms mist droplets, i.e., to ensure that the battery cooling device 010 keeps a stable mist output, thereby ensuring the stability of the battery cooling effect.

[0067] Still further, the opening and closing assembly 400 comprises a float 410 and a valve 420, the valve 420 is arranged at the liquid outlet 120, and the float 410 is rotatably arranged in the atomizing cavity 210 and is configured to enable the valve 420 to open the liquid outlet 120; when the liquid level in the atomizing cavity 210 reaches a first preset liquid level, the float 410 rotates under the action of gravity to enable the valve 420 to open the liquid outlet 120; when the liquid level in the atomizing cavity 210 reaches a second preset liquid level, the float 410 resets under the action of buoyancy, and the valve 420 closes the liquid outlet 120; the second preset liquid level is higher than the first preset liquid level. In this way, the liquid outlet 120 can be automatically opened or closed according to the liquid level in the atomizing cavity 210, so that the atomizer 300 always works at an optimal atomizing liquid level condition, i.e., when the liquid level in the atomizer 300 decreases, the float 410 can drive the valve 420 to realize an automatic water supplement mechanism to maintain the liquid level height in the atomizer 300, which can ensure that the atomizer 300 is always located below a certain liquid level and ensure a stable and sufficient mist output.

[0068] In this embodiment, the valve 420 comprises a valve body and an elastic member, the valve body is movably arranged at the liquid outlet 120 and is used to open or close the liquid outlet 120, and the elastic member is configured to elastically cooperate with the valve body; the float 410 is in transmission cooperation with the valve body; when the liquid level in the atomizing cavity 210 reaches a first preset liquid level, the float 410 rotates under the action of gravity, pushes the valve body and overcomes the elastic action of the elastic member to open the liquid outlet 120; when the liquid level in the atomizing cavity 210 reaches a second preset liquid level, the float 410 resets under the action of buoyancy, and the valve body resets to close the liquid outlet 120 under the elastic action of the elastic member. Through the arrangement of the elastic member, the valve body can be reliably driven to close the liquid outlet 120 when the liquid level in the atomizer 300 rises.

[0069] It should be understood that in other embodiments, the valve 420 only includes a valve body, and the float 410 is in transmission cooperation with the valve body; when the liquid level in the atomizing cavity 210 reaches the first preset liquid level, the float 410 rotates under the action of gravity and drives the valve body to move to open the liquid outlet 120; when the liquid level in the atomizing cavity 210 reaches the second preset liquid level, the float 410 resets under the action of buoyancy and reversely moves the valve body to reset to close the liquid outlet 120.

[0070] Optionally, the elastic member can be a spring or an elastic rubber sleeve, which is not specifically limited here. The elastic member can be connected between the valve body and the liquid storage tank 100, or connected between the valve body and the atomizing tank 200, which is not specifically limited here.

[0071] Optionally, the float 410 includes a float body 411 and a pushing member 412 connected to the end of the float body 411, the float body 411 is rotatably arranged in the atomizing cavity 210, and the pushing member 412 is in transmission cooperation with the valve body; when the liquid level in the atomizing cavity 210 reaches the first preset liquid level, the float body 411 rotates under the action of gravity and drives the pushing member 412 to move, so as to push the valve body and overcome the elastic action of the elastic member to open the liquid outlet 120; when the liquid level in the atomizing cavity 210 reaches the second preset liquid level, the float body 411 drives the pushing member 412 to exit the reset track of the valve body under the action of buoyancy, and the valve body resets and closes the liquid outlet 120 under the elastic action of the elastic member. The arrangement of the pushing member 412 can reliably push the valve body to open the liquid outlet 120 when the liquid level decreases.

[0072] Optionally, the float 410 has opposite first and second ends, the rotation axis of the float 410 is located between the first and second ends, and the first end is in transmission cooperation with the valve 420 to open or close the liquid outlet 120; the distance from the first end to the rotation axis is less than the distance from the second end to the rotation axis; specifically, the float body 411 has opposite first and second ends, the rotation axis of the float body 411 is located between the first and second ends, and the first end is connected with the pushing member 412; when the liquid level in the atomizing cavity 210 reaches the first preset liquid level, the float body 411 rotates under the action of gravity, the second end of the float body 411 rotates downward, and the first end of the float body 411 drives the pushing member 412 to rotate upward to push the valve body and overcome the elastic action of the elastic member to open the liquid outlet 120; when the liquid level in the atomizing cavity 210 reaches the second preset liquid level, the second end of the float body 411 rotates upward under the action of buoyancy, and the first end of the float body 411 rotates downward to drive the pushing member 412 to exit the reset track of the valve body, and the valve body resets and closes the liquid outlet 120 under the elastic action of the elastic member.

[0073] The distance from the first end to the rotation axis is less than the distance from the second end to the rotation axis, which can make the float body 411 rotate more flexibly with the change of the liquid level, thereby ensuring the sensitivity of the opening and closing of the liquid outlet 120.

[0074] It should be noted that, in order to ensure the sensitivity of the rotation of the float 410 with the liquid level, the density of the material for manufacturing the float 410 is less than the density of the liquid in the atomization cavity 210. For example, when the liquid in the atomization cavity 210 and the liquid storage cavity 110 is water, the density of the material for manufacturing the float 410 is less than the density of water.

[0075] Optionally, the side of the float body 411 away from the liquid storage tank 100 is provided with a hollow groove 414, and the liquid in the atomization cavity 210 can enter the hollow groove 414, so that the float 410 rotates and resets more sensitively when the liquid level rises.

[0076] Please refer to Figure 2 and Figure 5 In the embodiment, the atomization cavity 210 is provided with a support seat 220, the float 410 includes a float body 411 and a rotating shaft 413 connected to the float body 411, the rotating shaft 413 is rotatably arranged in the support seat 220, and the float body 411 is configured to open the valve 420 to open the liquid outlet 120. The float body 411 is supported by the support seat 220, which can ensure smooth rotation of the float body 411 in the atomization cavity 210.

[0077] Further, the atomization cavity 210 is provided with two spaced support seats 220, the support seat 220 is provided with a groove 221, and specifically, one support seat 220 is provided with a groove 221 with an open top end on the side facing the other support seat 220; the battery cooling device 010 further includes a fixing member 230, both ends of the rotating shaft 413 are rotatably inserted into the grooves 221 of the two support seats 220, the fixing member 230 is connected with at least one of the two support seats 220, and the fixing member 230 prevents the rotating shaft 413 from being separated from the groove 221. In this way, the float 410 can be rotatably arranged in the atomization cavity 210, which is easy to operate.

[0078] Further, a first avoiding space 222 is formed between the two support seats 220, and a second avoiding space 231 is formed on the side of the fixing frame facing the first avoiding space 222, both the first avoiding space 222 and the second avoiding space 231 are used for avoiding the float 410; in this way, the float 410 can be avoided from being interfered by the support seat 220 or the fixing member 230 when rotating.

[0079] The connection mode of the fixing member 230 and the support seat 220 includes but is not limited to fastening with bolts and other fasteners, clamping, and bonding.

[0080] It should be understood that in other embodiments, the opening and closing assembly 400 can also be an electromagnetic valve arranged at the liquid outlet 120, and the battery cooling device 010 further comprises a liquid level sensor arranged in the atomization cavity 210 and connected (communicated) with the electromagnetic valve; when the liquid level sensor detects that the liquid level in the atomization cavity 210 reaches a first preset liquid level, the liquid level sensor sends first control information to the electromagnetic valve, and the electromagnetic valve opens the liquid outlet 120; when the liquid level sensor detects that the liquid level in the atomization cavity 210 reaches a second preset liquid level, the liquid level sensor sends second control information to the electromagnetic valve, and the electromagnetic valve closes the liquid outlet 120.

[0081] Alternatively, in other embodiments, the liquid storage tank 100 is further provided with a water pump for conveying the liquid in the liquid storage cavity 110 into the atomization cavity 210 through the liquid outlet 120; wherein the battery cooling device 010 further comprises a liquid level sensor arranged in the atomization cavity 210 and connected (communicated) with the water pump; when the liquid level sensor detects that the liquid level in the atomization cavity 210 reaches a first preset liquid level, the liquid level sensor sends first control information to the water pump, and the water pump conveys the liquid in the liquid storage cavity 110 into the atomization cavity 210 from the liquid outlet 120; when the liquid level sensor detects that the liquid level in the atomization cavity 210 reaches a second preset liquid level, the liquid level sensor sends second control information to the water pump, and the water pump no longer conveys the liquid in the liquid storage cavity 110 into the atomization cavity 210 through the liquid outlet 120.

[0082] It should be understood that in the embodiment in which the liquid storage tank 100 is provided with a water pump, the atomization tank 200 can also be arranged at the top or side of the liquid storage tank 100, which is not specifically limited here.

[0083] Alternatively, in other embodiments, the liquid storage cavity 110 and the atomization cavity 210 can also be kept in a state of always communicating, that is, the liquid in the liquid storage cavity 110 can be continuously supplemented into the atomization cavity 210.

[0084] Please refer to Figure 6 and Figure 7 The water tank of the embodiment further comprises an outlet mist channel 510, which is in communication with the atomization cavity 210; wherein the inner diameter of the outlet mist channel 510 is narrower than the width of the atomization cavity 210, so that the mist droplets in the atomization cavity 210 can be concentrated to output the atomization cavity 210 through the outlet mist channel 510. Since the outlet mist channel 510 is arranged to be relatively narrow, it can guide and output the mist droplets formed in the atomization cavity 210 in a concentrated manner, thereby improving the problem that the mist droplets cannot be uniformly dispersed and cannot be uniformly output due to the action of air flow, and improving the uniformity and stability of using mist to cool the battery.

[0085] The inner diameter of the mist outlet channel 510 is narrower than the width of the atomization cavity 210, which means that the width of the mist outlet channel 510 in any direction on the horizontal plane is smaller than the width of the atomization cavity 210 in any direction on the horizontal plane when the mist outlet channel 510 and the atomization cavity 210 are orthographically projected onto the horizontal plane. It can also be understood that the area of the orthographic projection of the mist outlet channel 510 on the horizontal plane is smaller than the area of the orthographic projection of the atomization cavity 210 on the horizontal plane.

[0086] Further, the water tank further comprises a diffuser 520, which is provided with a flared channel and a mist outlet 501 in communication with the flared channel, the mist outlet 501 being configured to output mist droplets from the flared channel. The flared channel has a first end and a second end oppositely distributed, the first end being in communication with the mist outlet channel 510, and the second end having a larger diameter than the first end. The flared diffuser 520 can make the mist droplets more uniformly output from the mist outlet 501, so as to utilize more uniformly distributed mist droplets to efficiently, reliably and uniformly cool the battery.

[0087] Optionally, the inner diameter of the flared channel gradually increases from the first end to the second end, so that the flared channel of the diffuser 520 is roughly in the shape of a flared horn. In this way, the mist droplets can be more uniformly output through the guidance of the flared channel.

[0088] Further, the inner diameter of the mist outlet channel 510 is equal to the inner diameter of the first end of the flared channel. In this way, the mist droplets formed in the atomization cavity 210 can be concentrated and output through the narrow mist outlet channel 510, ensuring smoother and faster mist output and improving the problem of vortex. Moreover, the problem of uneven distribution of mist droplets caused by air flow can also be improved. Of course, in other embodiments, the inner diameter of the mist outlet channel 510 can also be smaller than the inner diameter of the first end of the flared channel.

[0089] Optionally, please refer to Figure 1 and Figure 6 , the flared channel is further provided with a flow dividing rib 521, which is configured to disperse the mist droplets entering the flared channel from the mist outlet channel 510, so as to improve the uniformity of the mist droplets.

[0090] The specific number of the flow dividing rib 521 can be selected as needed, for example, one, two, three, four, five, etc., which is not limited herein.

[0091] In some embodiments, the flared channel is provided with a plurality of flow dividing ribs 521 (more than or equal to two), and the distance between any two flow dividing ribs 521 gradually increases from one end close to the mist outlet channel 510 to one end away from the mist outlet channel 510. In this way, the effect of uniformly dispersing the mist can be improved, and the uniformity of the mist output from the mist outlet 501 can be ensured.

[0092] Optionally, the mist outlet channels 510 and the diffusers 520 are arranged in sequence in the up-down direction, and the mist outlet channels 510 are located below the diffusers 520. In this way, the mist droplets in the atomizing cavity 210 below the liquid storage tank 100 can be reliably guided upwards to ensure that the mist droplets can more comprehensively cover the battery, thereby improving the heat dissipation effect of the battery.

[0093] Optionally, the mist outlet channels 510 and the diffusers 520 are both connected to the liquid storage tank 100 and located on the side of the liquid storage tank 100 close to the accommodation space 801 of the battery connecting assembly 800. In this way, the structure of the battery cooling device 010 can be more compact, which is conducive to reducing the overall volume of the battery cooling device 010.

[0094] Further, the mist outlet channels 510 and the diffusers 520 are both integrally formed with the liquid storage tank 100. Of course, in other embodiments, the mist outlet channels 510 and the diffusers 520 can also be arranged on the liquid storage tank 100 by bonding, clamping or other means, which is not limited here.

[0095] In this embodiment, please refer to Figure 1 and Figure 7 The liquid storage tank 100 is provided with an airflow channel 600, one end of the airflow channel 600 is open, and the other end is in communication with the mist outlet 501; the battery cooling device 010 further includes a fan 700, which is arranged at the airflow channel 600 and used to blow the mist droplets entering the airflow channel 600 out of the airflow channel 600 and towards the battery placed in the accommodation space 801. The arrangement of the fan 700 can reliably blow the mist droplets towards the battery on the one hand, and can also utilize the airflow of the fan 700 to cool the battery on the other hand, thereby realizing the combination of rapid gasification of water mist and airflow to maximize the heat absorption efficiency and rapidly cool the battery in a short time.

[0096] Further, the airflow channel 600 is opposite to the accommodation space 801, the fan 700 is located at the opening of the end of the airflow channel 600 away from the accommodation space 801, and the mist outlet 501 is close to the accommodation space 801 relative to the fan 700. In this way, the mist droplets can be more reliably blown towards the battery placed in the accommodation space 801, thereby improving the cooling efficiency of the battery.

[0097] Optionally, the liquid storage tank 100 is a ring-shaped cavity structure, and the liquid storage tank 100 surrounds and defines the airflow channel 600, i.e., the liquid storage cavity 110 of the liquid storage tank 100 surrounds the airflow channel 600 on all sides; please refer to Figure 1 , Figure 6 and Figure 7, the diffuser 520 and the flow dividing ribs 521 arranged in the flared channel all extend into the airflow channel 600 and along the axial direction of the airflow channel 600, one end of the diffuser 520 is an air inlet 522, the other end is a mist outlet 501 which is in communication with the air inlet 522, the air inlet 522 is opposite to the fan 700, and the mist outlet 501 is opposite to the containing space 801. In this way, the air blown by the fan 700 can reliably be blown from the air inlet 522 to the mist outlet 501, so as to efficiently blow the airflow and the mist droplets into the containing space 801, improve the cooling efficiency of the battery, and ensure the compact structure design of the liquid storage tank 100, thereby ensuring the miniaturized design of the battery cooling device 010 as a whole.

[0098] Optionally, the fan 700 can be electrically connected with a charging device through the charging plug 850, that is, the fan 700 can be powered by the charging device. Alternatively, in other embodiments, the fan 700 can be directly electrically connected with other power sources, which are not limited in detail herein.

[0099] Please refer to Figure 3 and Figure 7 The battery cooling device 010 of the embodiment further comprises a flow straightener 710 arranged on the air outlet side of the fan 700, which is used to convert the rotating airflow blown by the fan 700 into a flat airflow before blowing it to the diffuser 520. In this way, the problem of vortex flow formed by the air blown by the fan 700 can be improved, the uniformity of the air outlet can be improved, and the heat dissipation efficiency and uniformity of the battery can be improved.

[0100] Further, the flow straightener 710 has a plurality of air holes 711 arranged in an array, and the two ends of the air holes 711 are opposite to the fan 700 and the containing space 801 respectively. In this way, the air blown by the fan 700 can be output from the plurality of air holes 711 arranged in an array, so as to reliably convert the rotating airflow into a flat and uniform airflow, ensure good flow straightening effect, that is, ensure the uniformity of the air outlet, and improve the heat dissipation uniformity of the battery.

[0101] Optionally, the fan 700 and the flow straightener 710 are both arranged in the airflow channel 600, and the side of the flow straightener 710 away from the fan 700 is opposite to the air inlet 522 of the diffuser 520. The airflow blown by the fan 700 passes through the flow straightener 710 and then enters the diffuser 520 through the air inlet 522, and then is blown out from the mist outlet 501 and enters the containing space 801. In this way, the airflow and the mist droplets can be blown into the containing space 801 together, thereby improving the cooling efficiency of the battery. Of course, in other embodiments, the fan 700 can not be arranged in the airflow channel 600; or neither the fan 700 nor the flow straightener 710 is arranged in the airflow channel 600, as long as the air blown by the fan 700 can pass through the flow straightener 710 and then be blown into the airflow channel 600, so as to blow the mist droplets in the airflow channel 600 to the containing space 801.

[0102] Further, the diffuser 520 has an air outlet 523 at the end away from the mist outlet channel 510, and the end of the diffuser 520 away from the mist outlet channel 510 is spaced apart from the top of the airflow channel 600, that is, the air outlet 523 is spaced apart from the top wall of the airflow channel 600, and the gap between the air outlet 523 and the top wall of the airflow channel 600 is also spaced apart from the fan 700; part of the airflow regulated by the flow regulator 710 blows into the diffuser 520 through the air inlet 522, and then blows out from the mist outlet 501 and enters the containing space 801, and another part of the airflow regulated by the flow regulator 710 blows through the gap between the diffuser 520 and the top wall of the airflow channel 600 to carry the mist droplets output from the diffuser 520 through the air outlet 523 into the containing space 801.

[0103] It should be understood that in other embodiments, the mist outlet 501 can also be arranged at the bottom wall of the airflow channel 600 and communicate with the airflow channel 600, that is, neither the diffuser 520 nor the flow splitter 521 arranged in the flared channel extends into the airflow channel 600, and the mist outlet 501 is arranged at the end of the diffuser 520 away from the mist outlet channel 510, that is, the mist outlet 501 is located at the second end of the flared channel; in the up-down direction, the fan 700 and the flow regulator 710 are both located above the mist outlet 501, both ends of the airflow channel 600 have openings, the fan 700 is arranged adjacent to one of the openings, and the mist outlet 501 is arranged close to the other opening, and the airflow blown by the fan 700 blows through the mist outlet 501 after being regulated by the flow regulator 710 and enters the containing space 801 from the opening of the airflow channel 600 away from the fan 700. By blowing the straight airflow regulated by the flow regulator 710 above the mist outlet 501, the mist droplets guided by the diffuser 520 to become uniform can be mixed and blown to the battery together, thereby improving the cooling efficiency of the battery.

[0104] In other embodiments, the diffuser 520 is not necessary, that is, the airflow channel 600 is connected with the atomization cavity 210 through the mist outlet channel 510, wherein the end of the mist outlet channel 510 away from the atomization cavity 210 is the mist outlet 501, and the mist outlet 501 is used to make the mist droplets entering the mist outlet channel 510 enter the airflow channel 600.

[0105] Optionally, the liquid storage tank 100 is connected with a support rib 610, the support rib 610 is located in the airflow channel 600, and the fan 700 and the flow regulator 710 are connected to the support rib 610 together through fasteners.

[0106] Further, the airflow channel 600 has a plurality of support ribs 610 spaced around the circumference of the airflow channel 600, and the fan 700 and the flow regulator 710 are connected to the plurality of support ribs 610 by a plurality of fasteners one by one. In this way, the stability of the assembly of the fan 700 and the flow regulator 710 to the airflow channel 600 is ensured, and the support ribs 610 do not interfere with the air blowing of the fan 700, ensuring good battery cooling effect.

[0107] Optionally, the outer circumferential wall of the flow regulator 710 abuts against the inner wall of the airflow channel 600 to improve the problem of air leakage between the outer circumference of the flow regulator 710 and the inner wall of the airflow channel 600.

[0108] Of course, in other embodiments, a certain gap can also be left between the outer circumferential wall of the flow regulator 710 and the inner wall of the airflow channel 600, which is not specifically limited here.

[0109] When the battery of the unmanned device system of the present embodiment is charged, the battery can be detached from the unmanned device and assembled in the accommodating space 801 of the battery connecting assembly 800 of the battery cooling device 010. The battery is cooled by the mist droplets generated in the atomizing cavity 210 by the atomizer 300 and the airflow blown by the fan 700, and the cooled battery is charged by the charging device.

[0110] As described above, the battery cooling device 010 of the present application can be used in the unmanned device charging station of the unmanned device system, and the battery cooling device 010 can make the mist droplets more uniformly cover the battery to improve the uniformity and efficiency of battery cooling.

[0111] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical scope disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A battery cooling device, characterized in that, include: A water tank, wherein the water tank is provided with an atomizing chamber (210) and an airflow channel (600) communicating with the atomizing chamber (210); Atomizer (300), the atomizer (300) is disposed in the water tank and is used to atomize the liquid in the atomizing chamber (210) into droplets for cooling the battery; A fan (700) is disposed in the water tank for blowing the mist droplets that enter the airflow channel (600) out of the airflow channel (600) and towards the battery; as well as, A rectifier (710) is disposed on the air outlet side of the fan (700) and is used to convert the rotating airflow blown out by the fan (700) into a straight airflow.

2. The battery cooling device according to claim 1, characterized in that, The rectifier (710) is disposed within the airflow channel (600).

3. The battery cooling device according to claim 2, characterized in that, The fan (700) is disposed within the airflow channel (600).

4. The battery cooling device according to claim 2, characterized in that, The airflow channel (600) is provided with a support rib (610), and the rectifier (710) is connected to the support rib (610).

5. The battery cooling device according to claim 1, characterized in that, The rectifier (710) is provided with a plurality of air holes (711) arranged in an array.

6. The battery cooling device according to claim 1, characterized in that, The battery cooling device further includes a battery connection assembly (800), which is provided with a receiving space (801) for placing a battery. The airflow channel (600) is distributed opposite to the receiving space (801) so that the mist droplets blown out from the airflow channel (600) can enter the receiving space (801).

7. The battery cooling device according to claim 1, characterized in that, The water tank includes a liquid storage tank (100) and an atomizing tank (200). The liquid storage tank (100) is provided with a liquid storage chamber (110), and the atomizing tank (200) is provided with an atomizing chamber (210). The liquid storage tank (100) is connected to the atomizing tank (200). The liquid storage chamber (110) can store liquid and replenish the stored liquid to the atomizing chamber (210). The airflow channel (600) is provided in the liquid storage tank (100).

8. The battery cooling device according to claim 1, characterized in that, The water tank also includes a mist outlet channel (510), which connects the airflow channel (600) and the atomizing chamber (210).

9. The battery cooling device according to claim 8, characterized in that, The width of the mist outlet channel (510) is narrower than the width of the atomizing chamber (210).

10. The battery cooling device according to claim 8, characterized in that, The water tank also includes a diffuser (520), which is provided with a flared channel; the mist outlet channel (510) is connected to the airflow channel (600) through the flared channel, and the flared channel has a first end close to the mist outlet channel (510) and a second end away from the mist outlet channel (510), the diameter of the second end being larger than the diameter of the first end.

11. The battery cooling device according to claim 10, characterized in that, The flared channel is provided with a flow divider (521), which is used to disperse the mist droplets entering the flared channel from the mist outlet channel (510).

12. The battery cooling device according to claim 10, characterized in that, The diffuser (520) extends into the airflow channel (600); along the axial direction of the airflow channel (600), one end of the diffuser (520) is provided with an air inlet (522), and the other end is provided with a mist outlet (501); the air inlet (522) is distributed opposite to the rectifier (710), and the mist outlet (501) is used to allow the mist droplets to exit the flared channel.

13. The battery cooling device according to claim 12, characterized in that, The diffuser (520) has an air outlet (523) at one end away from the mist outlet channel (510). The air outlet (523) is spaced apart from the top wall of the airflow channel (600), and the gap between the air outlet (523) and the top wall of the airflow channel (600) is distributed relative to the rectifier (710).

14. A charging station for unmanned equipment, characterized in that, The device includes a battery, a charging device, and a battery cooling device as described in any one of claims 1-13, wherein the battery is detachably mounted on the battery cooling device, and when the battery is mounted on the battery cooling device, the charging device is electrically connected to the battery to charge the battery.

15. An unmanned equipment system, characterized in that, Includes unmanned equipment and the unmanned equipment charging station as described in claim 14, wherein the battery is detachably mounted on the unmanned equipment.

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