Lithium battery controller aging test temperature control device

Abstract

The invention relates to the technical field of lithium battery controller detection, in particular to a lithium battery controller aging test temperature control device which comprises an equipment bottom plate, a heating and heat supply integrated assembly is fixedly mounted at the top of the equipment bottom plate, and a top mounting plate is fixedly connected to the top of the heating and heat supply integrated assembly. One side of the top of the top mounting plate is provided with a single-side aging test assembly used for detecting the lithium battery controller, the to-be-detected lithium battery controller which is horizontally placed is placed on the single-side aging test assembly, and one side of the single-side aging test assembly is provided with a positioning assembly; the lithium battery controller aging test temperature control device comprises a top mounting plate and a positioning assembly, the positioning assembly is used for positioning a to-be-detected lithium battery controller which is horizontally placed, the positioning assembly is fixed on the top mounting plate, and the other side of the top of the top mounting plate is fixedly provided with a heat preservation box body. And the quality of the lithium battery controller is tested and detected through diversity.

Description

Technical Field

[0001] The present invention relates to an aging test temperature control device, specifically a temperature control device for aging test of a lithium battery controller, and belongs to the technical field of lithium battery controller detection. Background Technique

[0002] A lithium battery controller is an electronic device used to manage and control the charging and discharging process of a lithium battery pack. It realizes precise control and protection of the battery by real-time monitoring parameters such as the voltage, current, and temperature of the battery pack, so as to ensure the safe and efficient operation of the lithium battery pack and extend the service life of the battery. A lithium battery controller usually consists of parts such as a main control chip, a sampling circuit, a driving circuit, and a protection circuit. The sampling circuit is responsible for collecting signals such as the voltage, current, and temperature of the battery pack, converting these analog signals into digital signals, and then transmitting them to the main control chip. The main control chip analyzes and processes the sampled data according to preset algorithms and strategies, and then controls the power switching tubes in the charging and discharging circuits through the driving circuit to achieve precise control of the battery charging and discharging process. At the same time, the protection circuit will monitor the state of the battery pack in real time. When an abnormal situation occurs, it will quickly take protection measures, such as cutting off the circuit, etc., to ensure the safety of the battery and the device. Lithium battery controllers are widely used in fields such as electric bicycles and electric vehicles.

[0003] When a lithium battery controller is in use, it needs to be detected. Among them, the aging test of the lithium battery controller is a step in detecting the quality. This method generally conducts an aging test on the lithium battery controller at a relatively high temperature. However, when the existing lithium battery controllers are undergoing aging tests, it is generally inconvenient to simulate the test of the outer surface of the lithium battery controller under the condition of uniform heat, and it is also inconvenient to simulate the aging test mode of a single side of the outer surface of the lithium battery controller. The test method is single. Summary of the Invention

[0004] The purpose of the present invention is to provide a temperature control device for aging test of a lithium battery controller in order to solve the above problems. It can simulate the uniform heat aging test and the single-side aging test of the outer surface of the lithium battery controller, and test and detect the quality of the lithium battery controller through diversity.

[0005] The present invention realizes the above object through the following technical solutions. A temperature control device for aging test of a lithium battery controller includes an equipment bottom plate. A heating and heat supply integrated component is fixedly installed on the top of the equipment bottom plate. A top mounting plate is fixedly connected to the top of the heating and heat supply integrated component. On one side of the top of the top mounting plate, there is a single-sided aging test component for detecting the lithium battery controller. A lithium battery controller to be detected is horizontally placed on the single-sided aging test component. A positioning component is arranged on one side of the single-sided aging test component. The positioning component is used to position the horizontally placed lithium battery controller to be detected, and the positioning component is fixed on the top mounting plate. On the other side of the top of the top mounting plate, a heat preservation box body is fixedly installed. A lithium battery controller to be detected is vertically placed in the heat preservation box body. A clamping component is connected inside the heat preservation box body. The clamping component is used to clamp the vertically placed lithium battery controller to be detected. An outer surface heat equalization aging test component for detecting the lithium battery controller is connected to the top of the heat preservation box body. The heating and heat supply integrated component is used to provide heat sources for the single-sided aging test component and the outer surface heat equalization aging test component. A smart controller is fixed by a positioning plate near the center of the top of the top mounting plate.

[0006] Further, in order to extract the air inside the heating support box body, the heating and heat supply integrated component includes a heating support box body with an air inlet. The heating support box body is fixedly installed at the center of the top of the equipment bottom plate. A first heat source extraction pump is installed on one side of the top of the equipment bottom plate. A first heat source conduit is installed at the output end of the first heat source extraction pump. A second heat source extraction pump is installed on the other side of the top of the equipment bottom plate. A second heat source conduit is installed at the output end of the second heat source extraction pump. A connecting air guide head is fixed at one end of the second heat source conduit. A sealing gasket is adhered inside the connecting air guide head. The input ends of the first heat source extraction pump and the second heat source extraction pump are both communicated with the heating support box body.

[0007] Further, in order to heat the air inside the heating support box body, heating wires for heating the air are installed on the inner side wall of the heating support box body. A temperature sensor for detecting the temperature is also fixed on the inner side wall of the heating support box body. A thermometer is fixed on the top of the heating support box body. One end of the thermometer extends above the top mounting plate and the positioning plate.

[0008] Further, in order to heat a single side of the lithium battery controller to be detected, the single-side aging test assembly includes a gas guide cover located on one side of the top of the top mounting plate. Four support rods are provided at the bottom of the gas guide cover, and one end of each support rod is fixed to the top mounting plate. A support breathable net is fixedly installed on the inner side wall of the top of the gas guide cover. The lithium battery controller to be detected placed horizontally is located on the support breathable net, and the gas guide cover is communicated with the first heat source conduit.

[0009] Further, in order to displace the positioning pressure rod, the positioning assembly includes a rectangular plate fixed to one side of the top of the top mounting plate. A rectangular hole is provided in the rectangular plate, and a linkage plate is arranged in the rectangular hole. An electric telescopic rod is fixedly installed on the top of the rectangular plate, and one end of the electric telescopic rod is fixed to the top of the linkage plate. A positioning seat is fixed to one end of the linkage plate, and positioning pressure rods are symmetrically and fixedly installed at the bottom of the positioning seat.

[0010] Further, in order to drive the clamping block to displace through the linkage rod, the clamping assembly includes two support plates fixed to the inner side wall of the bottom of the heat preservation box body. The top of the support plate is fixedly connected to a placement seat with a notch on one side. The lithium battery controller to be detected placed vertically is located in the notch on the placement seat. A telescopic cylinder is fixed to the outer side wall of the heat preservation box body through a cylinder support. One end of the telescopic cylinder is fixed to an adapter plate. A linkage rod is installed on the outer side wall of the adapter plate. One end of the linkage rod extends into the interior of the detection box body, and a clamping block is installed at one end of the linkage rod.

[0011] Further, in order to rotate the U-shaped air duct, the outer surface uniform heat aging test assembly includes an F-shaped plate fixed to the top of the detection box body. Bearings are fixedly connected to both ends of the F-shaped plate, and a rotating air duct is fixedly connected in the bearings. One end of the rotating air duct extends into the interior of the detection box body. A U-shaped air duct is fixedly connected to one end of the rotating air duct. Air nozzles are provided at both ends of the U-shaped air duct. A driving gear is sleeved on the outer side wall of the other end of the rotating air duct. A driving motor is fixedly connected to the top of the detection box body. A driving gear is fixedly connected to the output shaft of the driving motor, and the driving gear meshes with the driving gear. One end of the rotating air duct is located in the connecting air nozzle.

[0012] Further, in order to increase the stability of the second heat source conduit, a bracket is fixed to the outer side wall at the rear of the detection box body. A support ring is fixedly connected to one end of the bracket, and the support ring is sleeved on the outside of the second heat source conduit.

[0013] Technical effects and advantages of the present invention: By providing a heating and heat supply integrated component, a positioning component, a single-sided aging test component, a clamping component, and an outer surface heat equalizing aging test component, the positioning component and the clamping component can conveniently position the lithium battery controller to be detected placed horizontally and the lithium battery controller to be detected placed vertically. The heating and heat supply integrated component can supply heat to the single-sided aging test component and the outer surface heat equalizing aging test component respectively. The single-sided aging test component and the outer surface heat equalizing aging test component can simulate the outer surface heat equalizing aging test and the single-sided aging test of the lithium battery controller, and test the quality of the lithium battery controller through diversity. Description of the Drawings

[0014] Figure 1 Schematic diagram of the overall structure of the present invention;

[0015] Figure 2 Schematic diagram of the rear view structure of the present invention;

[0016] Figure 3 Schematic diagram of the structure of the detection box body in the present invention;

[0017] Figure 4 Schematic diagram of the internal structure of the heating and supporting box body in the present invention;

[0018] Figure 5 Schematic diagram of the structure of the outer surface heat equalizing aging test component in the present invention;

[0019] Figure 6 Schematic diagram of the structure of the clamping component in the present invention;

[0020] Figure 7 Schematic diagram of the connection between the single-sided aging test component and the first heat source conduit in the present invention;

[0021] Figure 8 Schematic diagram of the structure of the positioning component in the present invention;

[0022] In the figure: 1. Equipment bottom plate; 2. Heating and heat supply integrated component; 201. Heating support box body; 202. First heat source extraction pump; 203. First heat source conduit; 204. Second heat source extraction pump; 205. Second heat source conduit; 206. Connecting air guide head; 207. Heating wire; 208. Temperature sensor; 209. Thermometer; 3. Top mounting plate; 4. Single-sided aging test component; 401. Air guide cover; 402. Support rod; 403. Support breathable net; 5. Positioning component; 501. Rectangular plate; 502. Linking plate; 503. Electric telescopic rod; 504. Positioning seat; 505. Positioning pressure rod; 6. Heat preservation box body; 7. Clamping component; 701. Support plate; 702. Placing seat; 703. Telescopic cylinder; 704. Connecting plate; 705. Linking rod; 706. Clamping block; 8. Outer surface uniform heat aging test component; 801. F-shaped plate; 802. Bearing; 803. Rotating air duct; 804. U-shaped air duct; 805. Air guide nozzle; 806. Driving gear; 807. Driving motor; 808. Driving gear; 9. Intelligent controller; 10. Bracket; 11. Support ring. Detailed implementation manners

[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0024] Please refer to Figures 1 - 8As shown in the figure, a temperature control device for aging test of a lithium battery controller includes a device bottom plate 1. A heating and heat supply integrated component 2 is fixedly installed on the top of the device bottom plate 1. The top of the heating and heat supply integrated component 2 is fixedly connected to a top mounting plate 3. On one side of the top of the top mounting plate 3, there is a single-sided aging test component 4 for detecting the lithium battery controller. A lithium battery controller to be detected is horizontally placed on the single-sided aging test component 4. On one side of the single-sided aging test component 4, there is a positioning component 5, which is used to position the horizontally placed lithium battery controller to be detected, and the positioning component 5 is fixed on the top mounting plate 3. On the other side of the top of the top mounting plate 3, a heat preservation box 6 is fixedly installed. A lithium battery controller to be detected is vertically placed in the heat preservation box 6. A clamping component 7 is connected inside the heat preservation box 6, and the clamping component 7 is used to clamp the vertically placed lithium battery controller to be detected. On the top of the heat preservation box 6, there is an outer surface heat equalizing aging test component 8 for detecting the lithium battery controller. The heating and heat supply integrated component 2 is used to provide heat sources for the single-sided aging test component 4 and the outer surface heat equalizing aging test component 8. A smart controller 9 is fixed near the center of the top of the top mounting plate 3 through a positioning plate. A support 10 is fixed on the outer side wall at the rear of the detection box body. One end of the support 10 is fixedly connected to a support ring 11, and the support ring 11 is sleeved outside the second heat source conduit 205.

[0025] When performing a heat equalizing aging test on the outer surface of the lithium battery controller under test, the user can first open the heat preservation box 6. The heat preservation box 6 is provided with a sealed glass door. Then, the user can position the vertically placed lithium battery controller to be detected through the clamping component 7. The clamping component 7 has a simple structure and is convenient for positioning. Then, the heating and heat supply integrated component 2 provides a heat source for the outer surface heat equalizing aging test component 8. When the outer surface heat equalizing aging test component 8 receives the heat source, it can simulate the heat equalizing aging test on the outer surface of the lithium battery controller. When performing a single-sided aging test on the outer surface of the lithium battery controller under test, the user can first horizontally place the lithium battery controller to be detected on the single-sided aging test component 4, and then position the horizontally placed lithium battery controller to be detected through the positioning component 5. Since the heating and heat supply integrated component 2 can also provide a heat source for the single-sided aging test component 4, the heating and heat supply integrated component 2 can simulate the aging situation when the single side of the lithium battery controller to be detected is heated. In summary, the quality of the lithium battery controller is tested through diversity, and the single-sided aging test and the heat equalizing aging test on the outer surface of the lithium battery controller can be carried out simultaneously, improving the test efficiency.

[0026] The heating and heat supply integrated component 2 includes a heating support box body 201 with an air inlet. The heating support box body 201 is fixedly installed at the central position on the top of the equipment bottom plate 1. A first heat source extraction pump 202 is installed on one side of the top of the equipment bottom plate 1. A first heat source conduit 203 is installed on the output end of the first heat source extraction pump 202. A second heat source extraction pump 204 is installed on the other side of the top of the equipment bottom plate 1. A second heat source conduit 205 is installed on the output end of the second heat source extraction pump 204. A connection air guide head 206 is fixed at one end of the second heat source conduit 205. A gasket is adhered in the connection air guide head 206. The input ends of the first heat source extraction pump 202 and the second heat source extraction pump 204 are both communicated with the heating support box body 201. A heating wire 207 for heating air is installed on the inner side wall of the heating support box body 201. A temperature sensor 208 for detecting temperature is also fixed on the inner side wall of the heating support box body 201. A thermometer 209 is fixed on the top of the heating support box body 201. One end of the thermometer 209 extends above the top mounting plate 3 and the positioning plate. The air inside the heating support box body 201 can be heated by the heating wire 207, and the temperature sensor 208 can detect the temperature inside it. When the temperature sensor 208 detects that the temperature reaches a certain value, it can transmit a signal to the intelligent controller 9, and the heating wire 207 can be stopped from working through the intelligent controller 9. The thermometer 209 can directly show the temperature inside the heating support box body 201. After heating, the first heat source extraction pump 202 can extract the heat source and transmit it into the single-sided aging test component 4 through the first heat source conduit 203. Similarly, the second heat source extraction pump 204 can transmit the heat source into the outer surface heat equalizing aging test component 8 through the second heat source conduit 205 and the connection air guide head 206.

[0027] The single-sided aging test component 4 includes an air guide cover 401. The air guide cover 401 is located on one side of the top of the top mounting plate 3. Four support rods 402 are arranged at the bottom of the air guide cover 401. One end of the support rods 402 is fixed on the top mounting plate 3. A support breathable net 403 is fixedly installed on the inner side wall of the top of the air guide cover 401. The lithium battery controller to be detected placed horizontally is located on the support breathable net 403, and the air guide cover 401 is communicated with the first heat source conduit 203. When the lithium battery controller to be tested is horizontally placed on the support breathable net 403 and is positioned by the positioning component 5, since the first heat source extraction pump 202 can transmit the heat source into the air guide cover 401, then the heat source can pass through the support breathable net 403 to heat the horizontally placed lithium battery controller to be tested. At this time, only the horizontally placed lithium battery to be tested is heated on one side, achieving the single-sided aging test effect.

[0028] The positioning component 5 includes a rectangular plate 501 fixed to one side of the top of the top mounting plate 3. A rectangular hole is provided in the rectangular plate 501. A linkage plate 502 is arranged in the rectangular hole. An electric telescopic rod 503 is fixedly installed on the top of the rectangular plate 501. One end of the electric telescopic rod 503 is fixed to the top of the linkage plate 502. A positioning seat 504 is fixed to one end of the linkage plate 502. Symmetrically fixed to the bottom of the positioning seat 504 are positioning pressure rods 505. The electric telescopic rod 503 can drive the linkage plate 502 to displace within the rectangular plate 501, thereby driving the linkage plate 502, the positioning seat 504 and the positioning pressure rods 505 to displace. When the positioning pressure rods 505 displace to contact the horizontally placed lithium battery controller to be detected, it can be positioned.

[0029] The clamping component 7 includes two support plates 701 fixed to the inner bottom wall of the heat preservation box body 6. The top of the support plate 701 is fixedly connected to a placement seat 702 with a notch on one side. The lithium battery controller to be detected placed vertically is located in the notch on the placement seat 702. A telescopic cylinder 703 is fixed to the outer side wall of the heat preservation box body 6 through a cylinder support. One end of the telescopic cylinder 703 is fixed to a connection plate 704. A linkage rod 705 is installed on the outer side wall of the connection plate 704. One end of the linkage rod 705 extends into the interior of the detection box body. A clamping block 706 is installed at one end of the linkage rod 705. After the bottom of the lithium battery controller to be detected is placed in the notch on the placement seat 702, the user can drive the connection plate 704 and the linkage plate 502 to displace through the telescopic cylinder 703, thereby driving the linkage rod 705 and the clamping block 706 to displace until the clamping block 706 positions the vertically placed lithium battery controller to be detected, which is convenient to operate.

[0030] The outer surface isothermal aging test assembly 8 includes an F-shaped plate 801 fixed to the top of the detection box body. Bearings 802 are fixedly connected to both ends of the F-shaped plate 801. A rotating air duct 803 is fixedly connected inside the bearings 802. One end of the rotating air duct 803 extends into the detection box body. A U-shaped air duct 804 is fixedly connected to one end of the rotating air duct 803. Air nozzles 805 are provided at both ends of the U-shaped air duct 804. A driving gear 806 is sleeved on the outer side wall of the other end of the rotating air duct 803. A driving motor 807 is fixedly connected to the top of the detection box body. A driving gear 808 is fixedly connected to the output shaft of the driving motor 807. The driving gear 808 meshes with the driving gear 806. One end of the rotating air duct 803 is located inside the connecting air guide head 206. After the vertically placed lithium battery controller is positioned in the heat preservation box body 6, since the second heat source extraction pump 204 can output the heat source through the second heat source conduit 205 and the connecting air guide head 206, the output heat source can enter the rotating air duct 803, and then enter the U-shaped air duct 804. After that, the heat source can be ejected through the air nozzles 805. Then, the user can make the driving motor 807 drive the driving gear 808 to rotate, which can drive the driving gear 806 and the rotating air duct 803. When the rotating air duct 803 rotates in the bearings 802, it can drive the U-shaped air duct 804 to rotate. The rotating U-shaped air duct 804 can evenly heat the outer surface of the lithium battery controller to be detected, achieving the outer surface isothermal aging test. One end of the rotating air duct 803 is located inside the connecting air guide head 206, and a sealing gasket is provided inside the connecting air guide head 206. Therefore, when the rotating air duct 803 rotates, there will be no air leakage at their connection. A sealing gasket is also installed at the top of the detection box body through an opening. The rotating air duct 803 passes through the sealing gasket and penetrates into the detection box body. Similarly, the sealing effect at the linkage rod 705 is the same.

[0031] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, in any regard, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0032] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A temperature control device for aging test of a lithium battery controller, comprising an equipment bottom plate (1), characterized in that: The top of the device base plate (1) is fixedly installed with a heating and heat supply integrated component (2). The top of the heating and heat supply integrated component (2) is fixedly connected with a top mounting plate (3). On one side of the top of the top mounting plate (3), there is a single-sided aging test component (4) for detecting the lithium battery controller. A lithium battery controller to be detected is horizontally placed on the single-sided aging test component (4). On one side of the single-sided aging test component (4), there is a positioning component (5) which is used to position the horizontally placed lithium battery controller to be detected, and the positioning component (5) is fixed on the top mounting plate (3). On the other side of the top of the top mounting plate (3), a heat preservation box body (6) is fixedly installed. A vertically placed lithium battery controller to be detected is placed in the heat preservation box body (6). A clamping component (7) is connected inside the heat preservation box body (6), and the clamping component (7) is used to clamp the vertically placed lithium battery controller to be detected. An outer surface uniform heat aging test component (8) for detecting the lithium battery controller is connected to the top of the heat preservation box body (6). The heating and heat supply integrated component (2) is used to provide heat sources for the single-sided aging test component (4) and the outer surface uniform heat aging test component (8). A smart controller (9) is fixed near the center of the top of the top mounting plate (3) through a positioning plate.

2. The temperature control device for aging test of a lithium battery controller according to claim 1, wherein: The heating and heat supply integrated component (2) includes a heating support box body (201) with an air inlet. The heating support box body (201) is fixedly installed at the center of the top of the device base plate (1). A first heat source extraction pump (202) is installed on one side of the top of the device base plate (1). A first heat source conduit (203) is installed at the output end of the first heat source extraction pump (202). A second heat source extraction pump (204) is installed on the other side of the top of the device base plate (1). A second heat source conduit (205) is installed at the output end of the second heat source extraction pump (204). One end of the second heat source conduit (205) is fixed with a connecting air guide head (206), and a sealing gasket is adhered inside the connecting air guide head (206). The input ends of the first heat source extraction pump (202) and the second heat source extraction pump (204) are both communicated with the heating support box body (201).

3. The temperature control device for aging test of a lithium battery controller according to claim 2, wherein: A heating wire (207) for heating air is installed on the inner side wall of the heating support box body (201). A temperature sensor (208) for detecting temperature is also fixed on the inner side wall of the heating support box body (201). A thermometer (209) is fixed on the top of the heating support box body (201), and one end of the thermometer (209) extends above the top mounting plate (3) and the positioning plate.

4. A temperature control device for aging test of a lithium battery controller according to claim 2, characterized in that: The single-sided aging test component (4) includes an air guide cover (401). The air guide cover (401) is located on one side of the top of the top mounting plate (3). Four support rods (402) are provided at the bottom of the air guide cover (401). One end of each support rod (402) is fixed to the top mounting plate (3). A support ventilation net (403) is fixedly installed on the inner side wall of the top of the air guide cover (401). The lithium battery controller to be detected, placed horizontally, is located on the support ventilation net (403), and the air guide cover (401) is communicated with the first heat source conduit (203).

5. The temperature control device for aging test of a lithium battery controller according to claim 1, wherein: The positioning component (5) includes a rectangular plate (501) fixed to one side of the top of the top mounting plate (3). A rectangular hole is provided in the rectangular plate (501). A linkage plate (502) is arranged in the rectangular hole. An electric telescopic rod (503) is fixedly installed on the top of the rectangular plate (501). One end of the electric telescopic rod (503) is fixed to the top of the linkage plate (502). A positioning seat (504) is fixed to one end of the linkage plate (502). Two positioning pressure rods (505) are symmetrically and fixedly installed at the bottom of the positioning seat (504).

6. The temperature control device for aging test of a lithium battery controller according to claim 1, characterized in that: The clamping component (7) includes two support plates (701) fixed to the inner side wall of the bottom of the heat preservation box body (6). A placement seat (702) with a notch on one side is fixedly connected to the top of the support plate (701). The lithium battery controller to be detected, placed vertically, is located in the notch on the placement seat (702). A telescopic cylinder (703) is fixed to the outer side wall of the heat preservation box body (6) through a cylinder support. One end of the telescopic cylinder (703) is fixed to an adapter plate (704). A linkage rod (705) is installed on the outer side wall of the adapter plate (704). One end of the linkage rod (705) extends into the interior of the detection box body. A clamping block (706) is installed at one end of the linkage rod (705).

7. The temperature control device for aging test of a lithium battery controller according to claim 2, characterized in that: The outer surface uniform heat aging test component (8) includes an F-shaped plate (801) fixed to the top of the detection box body. Bearings (802) are fixedly connected to both ends of the F-shaped plate (801). A rotating air guide pipe (803) is fixedly connected inside the bearings (802). One end of the rotating air guide pipe (803) extends into the interior of the detection box body. A U-shaped air guide pipe (804) is fixedly connected to one end of the rotating air guide pipe (803). Air guide nozzles (805) are provided at both ends of the U-shaped air guide pipe (804). A driving gear (806) is sleeved on the outer side wall of the other end of the rotating air guide pipe (803). A driving motor (807) is fixedly connected to the top of the detection box body. A driving gear (808) is fixedly connected to the output shaft of the driving motor (807). The driving gear (808) meshes with the driving gear (806). One end of the rotating air guide pipe (803) is located inside the connecting air guide head (206).

8. The temperature control device for aging test of a lithium battery controller according to claim 2, wherein: A bracket (10) is fixed on the outer side wall at the rear side of the detection box body. One end of the bracket (10) is fixedly connected with a support ring (11), and the support ring (11) is sleeved outside the second heat source conduit (205).

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