A self-cooling rechargeable battery pack

Abstract

The present invention discloses a self-cooling rechargeable battery pack, belonging to the technical field of cooling battery packs, which includes a heat-conducting housing, a battery cell group, and a support frame. The battery cell group is fixedly connected to the inner wall of the heat-conducting housing. The support frame is located above the battery cell group, and a local cooling positioning mechanism is installed on the inner wall of the support frame. Through the local cooling positioning mechanism of the present invention, when the temperature values sensed by multiple temperature sensors are higher than the temperature values set by the controller, the identification sensor can scan and record the interval bar code information of this local area. When the temperature sensor continues to sense that the temperature is higher than the temperature set by the controller, the identification sensor records the information of another interval bar code at this area position again, which can quickly and accurately locate the local high-temperature position on the battery cell group, automatically and accurately supplement the cooling of the local abnormal high-temperature position of the battery cell group, and greatly improve the cooling accuracy of the battery pack.

Description

Technical Field

[0001] The present invention relates to the technical field of cooling battery packs, and particularly relates to a self-cooling rechargeable battery pack. Background Art

[0002] Rechargeable battery packs can be used in home energy storage systems to store electricity generated by solar or wind energy, so as to provide power supply for homes during power outages or peak electricity consumption periods. Secondly, in factories and commercial building sites, rechargeable battery packs serve as backup power sources or energy storage devices to ensure continuous power supply and maintain the operation of key equipment during power outages.

[0003] In the existing publicly disclosed technical literature, the patent with the Chinese patent publication number CN211125723U discloses a dual-channel battery pack air cooling structure. In this technology, two ventilation slots are provided on the side wall of the protection box for the battery pack. During use, an exhaust fan can be connected to the ventilation slots, and external air can be sucked into the protection box at high speed through the air intake holes. The high-speed air rises along the deflector and blows towards the outer wall of the battery, taking away the heat dissipated by the battery and blowing it out through the ventilation holes, so as to efficiently dissipate the heat of the battery pack and avoid damage to the battery pack at high temperatures. However, the battery pack still has the following problems when charging and in use.

[0004] When the battery pack is charging and in use, although it needs to be cooled by air cooling, during the cooling process, air cooling is for large-area heat dissipation cooling. When the temperature of a local area of the battery pack is abnormally high, it is still necessary to overall increase the air cooling power to cool the local position of the battery pack. However, the other normally temperature positions of the battery pack will also be cooled by strong wind, resulting in a significant increase in the cooling energy consumption cost of the other normally temperature positions of the battery pack. This makes it difficult to accurately supplement the cooling of the locally abnormally high temperature position of the battery pack, and the cooling accuracy of the battery pack is poor. Therefore, a self-cooling rechargeable battery pack is needed. Summary of the Invention

[0005] Therefore, the present invention provides a self-cooling rechargeable battery pack to solve the technical problems existing in the prior art.

[0006] To achieve the above object, the present invention provides the following technical solution: A self-cooling rechargeable battery pack includes a heat-conducting housing, a battery cell group, and a support frame. The battery cell group is fixedly connected to the inner wall of the heat-conducting housing. The support frame is located above the battery cell group, and a local cooling positioning mechanism is installed on the inner wall of the support frame. The local cooling positioning mechanism includes a transmission screw rotatably installed on the inner wall of the support frame, and a transmission motor is fixedly installed on one side of the inner wall of the support frame. The transmission motor is used to drive the transmission screw to rotate. A socket block is threadedly connected to the outer wall of the transmission screw, and a rectangular frame is fixedly installed at the bottom end of the socket block. A plurality of temperature sensors are fixedly installed on the inner wall of the rectangular frame, and there is a gap between the temperature sensors and the battery cell group.

[0007] A recognition sensor is fixedly connected to the upper surface of the rectangular frame and near one of its corner lines, and a plurality of interval barcodes are arranged behind the recognition sensor, and the plurality of interval barcodes are all connected to the inner wall of the heat conduction shell; on the outer wall of the battery cell group and at positions on both sides of the rectangular frame, arc-shaped cooling pipes are slidably connected, and a local cooling interval mechanism is arranged on one side of the arc-shaped cooling pipe.

[0008] Preferably, the upper surface of the support frame is fixedly connected to the top end of the inner wall of the heat conduction shell, and the outer wall of the socket block is slidably connected to the inner wall of the support frame; the plurality of temperature sensors are arranged in a rectangular distribution. A rectangular fin is welded to the outer wall of the heat conduction shell, and one end of the rectangular fin is fixedly connected to a cooling box, and a plurality of cooling holes are formed in both sides of the cooling box. The upper surface of the cooling box is fixedly communicated with a cooling ring, a support rod is fixedly installed on the inner wall of the cooling ring, and a rotating motor is fixedly installed at one end of the support rod; the output end of the rotating motor is coaxially driven to connect a blade, a controller is fixedly installed on one side of the heat conduction shell, and a charging wire is fixedly installed at a position near the controller at the rear of the heat conduction shell; a power discharging wire is fixedly installed at a position near the controller at the front of the heat conduction shell, and both the charging wire and the power discharging wire are fixedly connected to the battery cell group.

[0009] When this technical solution is in use, the driving motor drives the driving screw rod to rotate forward inside the support frame, the socket block drives the rectangular frame to move leftward, and the plurality of temperature sensors sense the temperature along multiple surfaces of the outer wall of the battery cell group, and the recognition sensor sequentially recognizes the information of the plurality of interval barcodes. When the temperature value sensed by the plurality of temperature sensors is higher than the temperature value set by the controller, the information of the interval barcode in this local area can be scanned and recorded through the recognition sensor, and at this time, it is recorded as the information of the starting interval barcode. Then, the driving motor continues to drive the driving screw rod, the socket block drives the rectangular frame to make the plurality of temperature sensors continue to sense, and when the temperature sensor continues to sense a temperature higher than the temperature set by the controller, the recognition sensor records the information of another interval barcode in this area position again, and the information of the other interval barcode is recorded as the end point.

[0010] At this time, the driving motor drives the driving screw rod to rotate reversely, and the socket block drives the rectangular frame to move rightward under the action of the screw transmission force until the recognition sensor detects the information of another interval barcode.

[0011] Preferably, the local cooling interval mechanism includes a bracket fixedly installed on one side of the arc-shaped cooling pipe, and both the support frame and the heat conduction shell are slidably connected to the arc-shaped cooling pipe; one end of the bracket is fixedly connected to a calibration recognition sensor, and the bottom end of the calibration recognition sensor is slidably connected to the recognition sensor, and a communication hole is formed in the inner wall of the arc-shaped cooling pipe.

[0012] On the other side of the arc-shaped cooling pipe, there is a connecting block fixedly connected, and a push rod is welded on the upper surface of the connecting block. A sleeve rod is rotatably connected to the outer wall of the push rod; a pressing rod is rotatably connected to the inner wall of the sleeve rod at a position far from the push rod. A socket plate is fixedly installed at the bottom end of the pressing rod. A rotating shaft is fixedly connected to the inner wall of the socket plate at a position far from the pressing rod; the bottom end of the rotating shaft is coaxially driven and connected with a reduction motor, and the reduction motor is fixedly connected between the heat-conducting housing. The top end and the bottom end of the sleeve rod are both rotatably connected with limiting rings, and both limiting rings are fixedly connected with the push rod; A following cooling component is installed above the sleeve rod. The two limiting rings are symmetrically arranged with respect to the sleeve rod, and the bottom end surface of the sleeve rod is higher than the top end surface of the socket plate. A support ring is rotatably connected to the upper surface of the socket plate near the rotating shaft, and the inner wall of the support ring is fixedly connected with the outer wall of the rotating shaft.

[0013] When this technical solution is used, start the two reduction motors. The output end of the reduction motor drives counterclockwise, and the output end of the other reduction motor rotates clockwise. The rotating shaft drives the support ring to rotate counterclockwise, the socket plate drives the pressing rod to press, and at the same time the pressing rod drives the sleeve rod to press. The push rod drives the two limiting rings to move leftward, and the push rod drives the arc-shaped cooling pipe to move leftward. At the same time, the arc-shaped cooling pipe moves leftward along the outer wall of the battery cell group, and the bracket drives the alignment and identification sensor to move leftward. When the alignment and identification sensor moves to identify the information of the starting interval bar code, and the other alignment and identification sensor identifies the information of another interval bar code, it is the end area information, and the two reduction motors are turned off through the controller.

[0014] Preferably, the following cooling component includes a connecting hose installed above the sleeve rod;

[0015] One end of the connecting hose is fixedly communicated with a connecting pipe, and the connecting pipe is fixedly communicated with the arc-shaped cooling pipe. The other end of the connecting hose is fixedly communicated with a communicating hose. One end of the communicating hose is fixedly communicated with a butt joint branch pipe, and one end of the butt joint branch pipe is welded and communicated with a support pipe; The outer wall of the support pipe is fixedly connected with the heat-conducting housing. The number of the support pipes is set to two. One end of one of the support pipes is fixedly communicated with a suction pipe, and one end of the suction pipe is threadedly communicated with a cooling fan. The output end of the cooling fan is fixedly installed with an outer discharge pipe. The cooling fan is fixedly connected with the heat-conducting housing. The sleeve rod is slidably connected with the connecting hose.

[0016] When this technical solution is used, when the arc-shaped cooling pipe moves leftward, it will drive the connecting pipe to move leftward, and the connecting hose will drive the communicating hose to move leftward accordingly. By starting the cooling fan, the other support pipe will suck external air into the other docking branch pipe, then enter the other connecting hose along the other communicating hose, enter the other connecting pipe through the other connecting hose, and enter the other arc-shaped cooling pipe through the other connecting pipe. The cooling air will strongly cool the locally high-temperature position on the battery cell group. The cooled heat can pour into the connecting pipe along the communication holes inside the arc-shaped cooling pipe, then enter the communicating hose along the connecting hose, enter the docking branch pipe along the communicating hose, enter the suction pipe along the support pipe, and be poured into the outer discharge pipe through the suction pipe, continuously and strongly cooling the locally high-temperature position on the battery cell group.

[0017] The present invention has the following advantages:

[0018] 1. Through the local cooling positioning mechanism of the present invention, the driving motor drives the driving screw to rotate forward inside the support frame. The driving screw drives the socket block to move leftward under the action of the thread driving force. The rectangular frame drives multiple temperature sensors to move leftward. The recognition sensor starts to move leftward along multiple interval barcodes. When the temperature values sensed by multiple temperature sensors are higher than the temperature value set by the controller, the recognition sensor can scan and record the interval barcode information of this local area, and continue to drive the driving screw through the driving motor. When the temperature sensor continues to sense that the temperature is higher than the temperature set by the controller, the recognition sensor records the information of another interval barcode at this area position again, which can quickly and accurately locate the locally high-temperature position on the battery cell group, and can accurately supplement the cooling of the locally abnormally high-temperature position on the battery cell group, greatly improving the cooling accuracy of the battery pack.

[0019] 2. The present invention adopts the local cooling interval mechanism. The output end of the reduction motor drives counterclockwise, and the output end of the other reduction motor rotates clockwise. The rotating shaft drives the socket plate to rotate counterclockwise. The socket plate drives the extrusion rod to extrude. The push rod drives two limit rings to move leftward, and the push rod drives the arc-shaped cooling pipe to move leftward. The arc-shaped cooling pipe moves leftward along the outer wall of the battery cell group. The arc-shaped cooling pipe drives the support to move leftward. The calibration recognition sensor moves to recognize the information of the starting interval barcode, and the other calibration recognition sensor recognizes the information of another interval barcode. The two arc-shaped cooling pipes can accurately interval the locally high-temperature position on the battery cell group. After the interval, the locally abnormally high-temperature position on the battery cell group is accurately supplemented with cooling, greatly improving the cooling accuracy of the battery pack, and avoiding strong cooling of other normal positions, resulting in waste of cooling energy consumption.

[0020] 3. The present invention utilizes the follow-up cooling assembly. When the arc-shaped cooling pipe moves leftward, it will carry the connecting pipe to move leftward, and the connecting pipe will carry the connecting hose to move leftward. Start the cooling fan. In this way, the other support pipe will inhale external air into the other docking branch pipe, enter the other arc-shaped cooling pipe through the other connecting pipe, and through the communication holes on the other arc-shaped cooling pipe, the cooling air will strongly cool the locally high-temperature positions on the battery cell group, enter the docking branch pipe along the connecting hose, and be poured into the support pipe through the docking branch pipe. A strong cooling local area is formed by the interval between the two arc-shaped cooling pipes, which can continuously and strongly cool the locally high-temperature positions on the battery cell group, avoid the cooling energy being consumed at other normal temperature positions, and precisely supplement the cooling of the locally abnormally high-temperature positions on the battery cell group.

[0021] Based on the mutual influence of the above-mentioned multiple functions, when the temperature values sensed by multiple temperature sensors are higher than the temperature values set by the controller, the identification sensor can scan and record the interval bar code information of this local area, and the identification sensor records the information of another interval bar code at the position of this area again. Secondly, the two arc-shaped cooling pipes can precisely space the locally high-temperature positions on the battery cell group. Finally, the two arc-shaped cooling pipes can precisely space the locally high-temperature positions on the battery cell group. In summary, it can quickly and precisely locate the locally high-temperature positions on the battery cell group, then precisely space the locally abnormally high-temperature positions on the battery cell group, and perform strong supplementary cooling after spacing, greatly improving the cooling accuracy of the battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings described below are only exemplary, and for those of ordinary skill in the art, without creative efforts, other implementation drawings can also be obtained according to the provided drawings.

[0023] The structures, ratios, sizes, etc. illustrated in this specification are only used to cooperate with the content disclosed in the specification for those who are familiar with this technology to understand and read, and are not used to limit the limited conditions for the implementation of the present invention. Therefore, they do not have technical essential meanings. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope that can be covered by the technical content disclosed in the present invention.

[0024] Figure 1 It is a front view structural schematic diagram of the self-cooling rechargeable battery pack of the present invention;

[0025] Figure 2 It is a cross-sectional structural schematic diagram of the self-cooling rechargeable battery pack of the present invention;

[0026] Figure 3 Schematic diagram of a partial cross-sectional cut at the connection between the heat-conducting housing and the rectangular fins of the present invention;

[0027] Figure 4 Of the present invention Figure 3 Enlarged schematic diagram of the structure at position A in

[0028] Figure 5 Schematic diagram of a partial cross-sectional cut at the connection between the arc-shaped cooling pipe and the bracket of the present invention;

[0029] Figure 6 Schematic diagram of a partial vertical cross-section at the connection between the heat-conducting housing and the support frame of the present invention;

[0030] Figure 7 Schematic diagram of a partial vertical cross-sectional cut at the connection between the socket block and the rectangular frame of the present invention;

[0031] Figure 8 Front view partial schematic diagram of the connection between the support rod and the rotating motor of the present invention;

[0032] Figure 9 Front view partial schematic diagram of the local cooling interval mechanism of the present invention;

[0033] Figure 10 Front view partial schematic diagram of the connection between the push rod and the sleeve rod of the present invention;

[0034] Figure 11 Schematic diagram of a partial cross-sectional cut at the connection between the docking branch pipe and the heat-conducting housing of the present invention;

[0035] In the figure: 1. Heat-conducting housing; 2. Battery cell group; 3. Support frame; 4. Transmission screw; 5. Transmission motor; 6. Socket block; 7. Rectangular frame; 8. Temperature sensor; 9. Identification sensor; 10. Interval bar code; 11. Rectangular fin; 12. Cooling box; 13. Cooling hole; 14. Cooling ring; 15. Support rod; 16. Rotating motor; 17. Blade; 18. Controller; 19. Charging wire; 20. Discharging wire; 21. Arc-shaped cooling pipe; 22. Bracket; 23. Calibration identification sensor; 24. Communication hole; 25. Connection block; 26. Push rod; 27. Sleeve rod; 28. Extrusion rod; 29. Socket plate; 30. Rotating shaft; 31. Reduction motor; 32. Limit ring; 33. Support ring; 34. Connecting pipe; 35. Connecting hose; 36. Communication hose; 37. Docking branch pipe; 38. Support pipe; 39. Suction pipe; 40. Cooling fan; 41. Outer discharge pipe. Detailed implementation mode

[0036] The following specific embodiments illustrate the implementation manners of the present invention. Those skilled in the art can easily understand the other advantages and effects of the present invention from the content disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0037] As shown in the attached Figure 1 - Figure 11 There is a self-cooling rechargeable battery pack. A local cooling positioning mechanism, a local cooling spacing mechanism, and a following cooling component are provided on the self-cooling rechargeable battery pack. The settings of each mechanism and component can quickly and accurately locate the local high-temperature positions on the battery cell group 2, then accurately space the local abnormally high-temperature positions on the battery cell group 2, and perform strong supplementary cooling after spacing, greatly improving the cooling accuracy of the battery pack. The specific structural settings of each mechanism and component are as follows.

[0038] In this embodiment, as shown in the attached Figure 1 - Figure 7 As shown, the battery cell group 2 is fixedly connected to the inner wall of the heat-conducting housing 1. The support frame 3 is located above the battery cell group 2, and a local cooling positioning mechanism is installed on the inner wall of the support frame 3; the local cooling positioning mechanism includes a transmission screw 4 rotatably installed on the inner wall of the support frame 3, and a transmission motor 5 is fixedly installed on one side of the inner wall of the support frame 3. The transmission motor 5 is used to drive the transmission screw 4 to rotate; a socket block 6 is threadedly connected to the outer wall of the transmission screw 4, and a rectangular frame 7 is fixedly installed at the bottom end of the socket block 6. A plurality of temperature sensors 8 are fixedly installed on the inner wall of the rectangular frame 7, and there is a gap between the temperature sensors 8 and the battery cell group 2; a recognition sensor 9 is fixedly connected to the upper surface of the rectangular frame 7 and near one of its corner lines, and a plurality of interval barcodes 10 are provided behind the recognition sensor 9. A plurality of interval barcodes 10 are all connected to the inner wall of the heat-conducting housing 1; arc-shaped cooling pipes 21 are slidably connected to both sides of the outer wall of the battery cell group 2 where the rectangular frame 7 is located, and a local cooling spacing mechanism is provided on one side of the arc-shaped cooling pipe 21.

[0039] In this embodiment, as shown in the attached Figure 1 - Figure 8 As shown, rectangular fins 11 are welded to the outer wall of the heat-conducting housing 1, and a cooling box 12 is fixedly connected to one end of the rectangular fins 11. A plurality of cooling holes 13 are opened on both sides of the cooling box 12, so that the heat-conducting housing 1 can conduct heat to the rectangular fins 11, and the rectangular fins 11 conduct heat into the cooling box 12, and external air enters the cooling box 12 through the plurality of cooling holes 13 to perform a cooling and temperature reduction operation.

[0040] The upper surface of the cooling box 12 is fixedly connected with a cooling ring 14. A support rod 15 is fixedly installed on the inner wall of the cooling ring 14, and a rotating motor 16 is fixedly installed at one end of the support rod 15. The output end of the rotating motor 16 is coaxially driven and connected with a blade 17. In this way, the cooling box 12 supports the cooling ring 14, the cooling ring 14 supports the support rod 15, the support rod 15 supports the rotating motor 16, the rotating motor 16 drives the blade 17 to rotate, and after the blade 17 is driven, external air can enter the interior of the cooling box 12 along a plurality of cooling holes 13, realizing the air-cooling operation.

[0041] In this embodiment, as shown in the attached Figure 1 - Figure 3 figure, one side of the heat-conducting housing 1 is fixedly installed with a controller 18, and a charging wire 19 is fixedly installed behind the heat-conducting housing 1 and close to the controller 18. A power wire 20 is fixedly installed in front of the heat-conducting housing 1 and close to the controller 18. Both the charging wire 19 and the power wire 20 are fixedly connected to the battery cell group 2. In this way, the power wire 20 can be plugged into a discharging device. After discharging, the charging wire 19 is plugged into a charger to charge the battery cell group 2 for storage, and the driving motor 5 is driven through the controller 18 to realize the driving operation of the driving motor 5.

[0042] In this embodiment, as shown in the attached Figure 5 - Figure 10 figure, the local cooling interval mechanism includes a bracket 22 fixedly installed on one side of the arc-shaped cooling pipe 21. Both the support frame 3 and the heat-conducting housing 1 are slidably connected to the arc-shaped cooling pipe 21. One end of the bracket 22 is fixedly connected with a calibration recognition sensor 23, and the bottom end of the calibration recognition sensor 23 is slidably connected with the recognition sensor 9. A communication hole 24 is opened on the inner wall of the arc-shaped cooling pipe 21. The other side of the arc-shaped cooling pipe 21 is fixedly connected with a connecting block 25, and a push rod 26 is welded on the upper surface of the connecting block 25. A sleeve rod 27 is rotatably connected to the outer wall of the push rod 26. A pressing rod 28 is rotatably connected to the inner wall of the sleeve rod 27 and away from the push rod 26. A socket plate 29 is fixedly installed at the bottom end of the pressing rod 28, and a rotating shaft 30 is fixedly connected to the inner wall of the socket plate 29 and away from the pressing rod 28.

[0043] The bottom end of the rotating shaft 30 is coaxially driven and connected with a reduction motor 31, and the reduction motor 31 is fixedly connected with the heat-conducting housing 1. The top end and the bottom end of the sleeve rod 27 are both rotatably connected with a limiting ring 32, and both limiting rings 32 are fixedly connected with the push rod 26. A following cooling assembly is installed above the sleeve rod 27. The two limiting rings 32 are symmetrically arranged with respect to the sleeve rod 27, and the bottom end surface of the sleeve rod 27 is higher than the top end surface of the socket plate 29. A support ring 33 is rotatably connected to the upper surface of the socket plate 29 and close to the rotating shaft 30, and the inner wall of the support ring 33 is fixedly connected with the outer wall of the rotating shaft 30.

[0044] In this embodiment, as shown in the Figure 9 - Figure 11 following figure, the following cooling assembly includes a connecting hose 35 installed above the sleeve rod 27; one end of the connecting hose 35 is fixedly communicated with a connecting pipe 34, the connecting pipe 34 is fixedly communicated with the arc-shaped cooling pipe 21, and the other end of the connecting hose 35 is fixedly communicated with a communicating hose 36. One end of the communicating hose 36 is fixedly communicated with a docking branch pipe 37, and one end of the docking branch pipe 37 is welded and communicated with a support pipe 38.

[0045] The outer wall of the support pipe 38 is fixedly connected to the heat-conducting housing 1. The number of support pipes 38 is set to two. One end of one of the support pipes 38 is fixedly communicated with a suction pipe 39, and one end of the suction pipe 39 is threadedly communicated with a cooling fan 40. The output end of the cooling fan 40 is fixedly installed with an outer discharge pipe 41. The cooling fan 40 is fixedly connected to the heat-conducting housing 1, and the sleeve rod 27 is slidably connected to the connecting hose 35.

[0046] The usage process of the self-cooling rechargeable battery pack of the present invention is as follows:

[0047] Step 1: During normal charging and cooling, insert the discharge wire 20 into the discharge device for the discharge device to use. After the discharge is completed, insert the charging wire 19 into the charger, and then charge through the charging wire 19 and store it on the battery cell group 2. The heat generated by the charging of the battery cell group 2 will be dissipated to the heat-conducting housing 1. The heat-conducting housing 1 can conduct heat to the rectangular fins 11, and the rectangular fins 11 conduct heat to the inside of the cooling box 12. The cooling box 12 supports the cooling ring 14, the cooling ring 14 supports the support rod 15, the support rod 15 supports the rotating motor 16, the rotating motor 16 drives the blade 17 to rotate. After the blade 17 is driven, the external air can enter the inside of the cooling box 12 along multiple cooling holes 13, and heat exchange and cooling are realized by contacting the rectangular fins 11. The hot air flows out along the upper part of the cooling ring 14. In this way, normal charging and cooling of the discharge wire 20 inside the heat-conducting housing 1 can be realized. For the locally high-temperature positions on the battery cell group 2, local enhanced cooling is required.

[0048] Step 2: During local high-temperature cooling positioning, the controller 18 drives the drive motor 5. The drive motor 5 drives the drive screw 4 to rotate forward inside the support frame 3. As a result, the drive screw 4 drives the socket block 6 to move leftward under the action of the threaded driving force. The socket block 6 drives the rectangular frame 7 to move leftward, and the rectangular frame 7 drives multiple temperature sensors 8 to move leftward. The multiple temperature sensors 8 sense the temperature along multiple surfaces of the outer wall of the battery cell group 2. At the same time, the rectangular frame 7 drives the identification sensor 9 to move leftward, and the identification sensor 9 starts to move leftward along multiple interval barcodes 10. The identification sensor 9 sequentially identifies the information of the multiple interval barcodes 10. When the temperature value sensed by the multiple temperature sensors 8 is higher than the temperature value set by the controller 18, it can be known that the temperature of this local area exceeds the standard. Then, the identification sensor 9 can scan and record the information of the interval barcode 10 of this local area. At this time, the information of the starting interval barcode 10 is recorded.

[0049] Then, continue to drive the drive screw 4 by the drive motor 5. The drive screw 4 continues to drive the socket block 6 to move leftward. The socket block 6 drives the rectangular frame 7 to make the multiple temperature sensors 8 continue to sense. When the temperature sensors 8 continue to sense a temperature higher than the temperature set by the controller 18, the identification sensor 9 records the information of another interval barcode 10 at this area position again. The information of another interval barcode 10 is recorded as the end point. Until later, when the multiple temperature sensors 8 do not sense high temperature, the left side of the rectangular frame 7 touches the right side position of another calibration identification sensor 23.

[0050] At this time, drive the drive screw 4 to rotate reversely by the drive motor 5. The socket block 6 drives the rectangular frame 7 to move rightward under the action of the threaded driving force. The rectangular frame 7 drives the multiple temperature sensors 8 to move rightward until the identification sensor 9 detects the information of another interval barcode 10. Then, the controller 18 can turn off the drive motor 5. In this way, the rectangular frame 7 can move to the high-temperature local area of the battery cell group 2.

[0051] Step 3. During the local cooling interval, start two reduction motors 31 through the controller 18. The output ends of the reduction motors 31 drive counterclockwise, and the output ends of the other reduction motors 31 rotate clockwise. The reduction motors 31 drive the rotating shaft 30 to rotate counterclockwise. The rotating shaft 30 drives the support ring 33 to rotate counterclockwise. The rotating shaft 30 drives the socket plate 29 to rotate counterclockwise. The socket plate 29 drives the extrusion rod 28 to extrude. At the same time, the extrusion rod 28 drives the sleeve rod 27 to extrude. The sleeve rod 27 drives the push rod 26 to move leftward. The push rod 26 drives the two limit rings 32 to move leftward, and the push rod 26 drives the arc-shaped cooling pipe 21 to move leftward. The arc-shaped cooling pipe 21 moves leftward along the outer wall of the support frame 3. At the same time, the arc-shaped cooling pipe 21 moves leftward along the outer wall of the battery cell group 2. The arc-shaped cooling pipe 21 drives the support 22 to move leftward. The support 22 drives the alignment and recognition sensor 23 to move leftward. The alignment and recognition sensor 23 moves along multiple interval barcodes 10. When the alignment and recognition sensor 23 moves and recognizes the information of the starting interval barcode 10, and the other alignment and recognition sensor 23 recognizes the information of another interval barcode 10, it is the end area information. Then, turn off the two reduction motors 31 through the controller 18, so that the local high-temperature positions on the battery cell group 2 can be accurately spaced between the two arc-shaped cooling pipes 21.

[0052] Step 4. During the follow-up cooling, when the arc-shaped cooling pipe 21 moves leftward, it will drive the connecting pipe 34 to move leftward. The connecting pipe 34 drives the connecting hose 35 to move leftward. The connecting hose 35 drives the communicating hose 36 to move leftward to follow. When the positions of the two arc-shaped cooling pipes 21 are accurately adjusted, start the cooling fan 40. In this way, the other support pipe 38 sucks external air into the other docking branch pipe 37, and then enters the other connecting hose 35 along the other communicating hose 36. The other connecting hose 35 enters the other connecting pipe 34, and then enters the other arc-shaped cooling pipe 21 through the other connecting pipe 34. Through the communication holes 24 on the other arc-shaped cooling pipe 21, the cooling air strongly cools the local high-temperature positions on the battery cell group 2. The heat after cooling can be poured into the connecting pipe 34 along the communication holes 24 inside the arc-shaped cooling pipe 21.

[0053] The connecting pipe 34 conveys the hot air into the connecting hose 35, then enters the communicating hose 36 along the connecting hose 35, then enters the docking branch pipe 37 along the communicating hose 36, is poured into the support pipe 38 through the docking branch pipe 37, enters the suction pipe 39 along the support pipe 38, and is poured into the outer discharge pipe 41 through the suction pipe 39. The outer discharge operation is realized through the outer discharge pipe 41, and the local high-temperature positions on the battery cell group 2 are continuously and strongly cooled.

[0054] Contents not described in detail in the specification belong to the prior art well-known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited. Conventional equipment can be used. In this technical solution, since the electrical control components not mentioned belong to the prior art, they are not shown in the figure and will not be described herein.

[0055] Although the present invention has been described in detail above with general descriptions and specific embodiments, on the basis of the present invention, some modifications or improvements can be made, which are obvious to those skilled in the art. Therefore, these modifications or improvements made without departing from the spirit of the present invention all fall within the scope of protection required by the present invention.

Claims

1. A self-cooling rechargeable battery pack, comprising a heat-conducting housing (1), a battery cell group (2) and a support frame (3), wherein the battery cell group (2) is fixedly connected to the inner wall of the heat-conducting housing (1), and the support frame (3) is located above the battery cell group (2), characterized in that: A local cooling positioning mechanism is installed on the inner wall of the support frame (3); The local cooling positioning mechanism comprises a transmission screw (4) rotatably mounted on the inner wall of the support frame (3), and a transmission motor (5) is fixedly mounted on one side of the inner wall of the support frame (3), wherein the transmission motor (5) is used to drive the transmission screw (4) to rotate; The outer wall of the transmission screw (4) is threadedly connected to a sleeve block (6), and a rectangular frame (7) is fixedly mounted on the bottom end of the sleeve block (6), and a plurality of temperature sensors (8) are fixedly mounted on the inner wall of the rectangular frame (7), and a gap is provided between the temperature sensor (8) and the battery cell group (2); An identification sensor (9) is fixedly connected to the upper surface of the rectangular frame (7) and close to a corner line thereof, and a plurality of interval bar codes (10) are arranged behind the identification sensor (9), and the plurality of interval bar codes (10) are all connected to the inner wall of the heat-conducting housing (1); The outer wall of the battery cell group (2) and the positions on both sides of the rectangular frame (7) are slidably connected to arc-shaped cooling tubes (21); one side of the arc-shaped cooling tube (21) is provided with a local cooling spacer mechanism, and the local cooling spacer mechanism comprises a bracket (22) fixedly mounted on one side of the arc-shaped cooling tube (21); one end of the bracket (22) is fixedly connected to a calibration identification sensor (23), and the bottom end of the calibration identification sensor (23) is slidably connected to the identification sensor (9); the inner wall of the arc-shaped cooling tube (21) is provided with a connecting hole (24); the arc-shaped cooling tube (21) is provided with a local cooling spacer mechanism, and the local cooling spacer mechanism comprises a bracket (22) fixedly mounted on one side of the arc-shaped cooling tube (21); a calibration identification sensor (23) is fixedly connected to one end of the bracket (22), and the bottom end of the calibration identification sensor (23) is slidably connected to the identification sensor (9); a connecting hole (24) is provided on the inner wall of the arc-shaped cooling tube (21); A connecting block (25) is fixedly connected to the other side of the cooling tube (21), and a push rod (26) is welded to the upper surface of the connecting block (25); a sleeve rod (27) is rotatably connected to the outer wall of the push rod (26); an extrusion rod (28) is rotatably connected to the inner wall of the sleeve rod (27) at a position away from the push rod (26); a sleeve plate (29) is fixedly mounted on the bottom end of the extrusion rod (28); a rotating shaft (30) is fixedly connected to the inner wall of the sleeve plate (29) at a position away from the extrusion rod (28); and a reduction motor (31) is coaxially connected to the bottom end of the rotating shaft (30).

2. The self-cooling rechargeable battery pack according to claim 1, characterized in that: The upper surface of the support frame (3) is fixedly connected to the top of the inner wall of the heat-conducting housing (1), and the outer wall of the sleeve block (6) is slidably connected to the inner wall of the support frame (3); The plurality of temperature sensors (8) are arranged in a rectangular distribution.

3. The self-cooling rechargeable battery pack according to claim 1, characterized in that: A rectangular fin (11) is welded to the outer wall of the heat-conducting housing (1), and one end of the rectangular fin (11) is fixedly connected to a cooling box (12), and a plurality of cooling holes (13) are provided on both sides of the cooling box (12).

4. The self-cooling rechargeable battery pack as claimed in claim 3, characterized in that: The upper surface of the cooling box (12) is fixedly connected to a cooling ring (14), a support rod (15) is fixedly mounted on the inner wall of the cooling ring (14), and a rotating motor (16) is fixedly mounted on one end of the support rod (15); The output end of the rotating motor (16) is coaxially connected to a blade (17).

5. The self-cooling rechargeable battery pack according to claim 1, characterized in that: A controller (18) is fixedly mounted on one side of the heat-conducting housing (1), and a charging cable (19) is fixedly mounted at the rear of the heat-conducting housing (1) and close to the controller (18); A discharge wire (20) is fixedly installed in front of the heat-conducting housing (1) and close to the controller (18), and both the charging wire (19) and the discharge wire (20) are fixedly connected to the battery cell group (2).

6. The self-cooling rechargeable battery pack according to claim 1, characterized in that: The support frame (3) and the heat-conducting housing (1) are both slidably connected to the arc-shaped cooling tube (21), the reduction motor (31) is fixedly connected to the heat-conducting housing (1), the top and bottom ends of the sleeve rod (27) are rotatably connected to limit rings (32), and the two limit rings (32) are fixedly connected to the push rod (26); A follower cooling assembly is installed above the sleeve rod (27), and the two limit rings (32) are symmetrically arranged about the sleeve rod (27). The bottom end surface of the sleeve rod (27) is higher than the top end surface of the sleeve plate (29). A support ring (33) is rotatably connected to the upper surface of the sleeve plate (29) near the position of the rotating shaft (30), and the inner wall of the support ring (33) is fixedly connected to the outer wall of the rotating shaft (30).

7. The self-cooling rechargeable battery pack according to claim 6, characterized in that: The follow-up cooling assembly comprises a connecting hose (35) installed above the sleeve rod (27); One end of the connecting hose (35) is fixedly connected to a connecting pipe (34), the connecting pipe (34) is fixedly connected to the arc-shaped cooling pipe (21), and the other end of the connecting hose (35) is fixedly connected to a connecting hose (36), one end of the connecting hose (36) is fixedly connected to a butt branch pipe (37), and one end of the butt branch pipe (37) is welded to a support pipe (38); The outer wall of the support tube (38) is fixedly connected to the heat-conducting shell (1), the number of the support tubes (38) is set to two, one end of one of the support tubes (38) is fixedly connected to a suction pipe (39), and one end of the suction pipe (39) is threadedly connected to a cooling fan (40), and an external exhaust pipe (41) is fixedly installed at the output end of the cooling fan (40).

8. The self-cooling rechargeable battery pack according to claim 7, characterized in that: The cooling fan (40) is fixedly connected to the heat-conducting housing (1), and the sleeve rod (27) is slidably connected to the connecting hose (35).

Images