A temperature testing device for a battery protection plate

Abstract

The utility model proposes a kind of temperature testing device of battery protection board, it is related to temperature test technical field, including temperature sensor, the surface fixed mounting of temperature sensor has detection fixed seat, the both ends fixed mounting of detection fixed seat can be telescopic adjustment and are engaged fastening plate, the one end of detection fixed seat is provided with the adjusting groove that the temperature measuring connector connecting wire is received.

Description

Technical Field

[0001] This utility model relates to the field of temperature testing technology, and in particular to a temperature testing device for a battery protection board. Background Technology

[0002] A battery protection board is an electronic device that protects series-connected lithium battery packs. It primarily prevents overcharging, over-discharging, overcurrent, short circuits, and overheating, thereby extending battery life and ensuring battery safety and reliability. Batteries generate heat during charging and discharging; poor heat dissipation or abnormalities can lead to overheating. The battery protection board undergoes temperature testing to ensure normal operation even in high-temperature environments, promptly detecting overheating and taking protective measures, such as cutting off the charging and discharging circuit, to prevent accidents like combustion or explosion due to overheating.

[0003] However, existing temperature testing devices for battery protection boards are not convenient to adjust according to the size of the battery protection board during use, and are not easy to install and fix for battery protection boards of different sizes, making them rather inconvenient to use. Utility Model Content

[0004] Therefore, the purpose of this utility model is to propose a temperature testing device for a battery protection board to solve the problems mentioned in the background art and overcome the shortcomings of the existing technology.

[0005] To achieve the above objectives, one embodiment of this utility model provides a temperature testing device for a battery protection board, including a temperature measuring connector connected to the battery protection board. One end of the temperature measuring connector is signal-connected to a main control unit for signal processing. The main control unit is signal-connected to a temperature sensor that is attached to the surface of the battery protection board. A detection fixing seat is fixedly installed on the surface of the temperature sensor to support it. Two ends of the detection fixing seat are fixedly installed with telescopically adjustable locking plates. One end of the detection fixing seat is provided with an adjustment groove for storing the connecting wire of the temperature measuring connector. A movable pull rod for folding the connecting wire of the temperature measuring connector is movably connected inside the adjustment groove. A limiting block for positioning is fixedly installed inside the movable pull rod. Elastic dustproof cloths for protection are provided on both sides of the limiting block.

[0006] Preferably, in any of the above embodiments, the inside of the detection fixture is provided with a fixing slot for fixing the temperature sensor, the main control unit is located inside the detection fixture, and the connecting wire of the temperature measuring connector passes through the detection fixture and the main control unit for signal connection.

[0007] The above technical solution provides a stable mounting position for the temperature sensor by using a mounting slot inside the detection fixture, ensuring that the temperature sensor can stably adhere to the surface of the battery protection board during testing and accurately measure the temperature. Setting the main control unit inside the detection fixture not only saves space but also reduces the complexity of wiring connections, allowing the connection wire of the temperature measuring connector to directly pass through the detection fixture and connect to the main control unit, ensuring the stability of signal transmission.

[0008] Preferably, in any of the above embodiments, the locking fastening plate includes a high-strength torsion spring for providing power, a rotating shaft for winding, a fastening band for pulling, and a locking plate for locking and fastening. The high-strength torsion spring is fixedly installed inside the detection fixing seat. One end of the high-strength torsion spring is fixedly installed with a rotating shaft that rotates inside the detection fixing seat. A fastening band is fixedly installed on the surface of the rotating shaft, and a locking plate is fixedly installed on one end of the fastening band.

[0009] The above technical solution is adopted: the high-strength torsion spring of the locking fastening plate is installed inside the test fixing seat to provide power for the entire locking fastening plate. When it is necessary to fix the battery protection plate, the drive shaft rotates, causing the fastening band wrapped on the rotating shaft to unfold and drive the locking plate to extend. By adjusting the torque of the high-strength torsion spring, the locking plate can be adapted to battery protection plates of different sizes and be firmly locked to them, ensuring the stability of the relative position between the device and the battery protection plate during the test.

[0010] Preferably, as described in any of the above embodiments, a buckle plate is provided above the adjustment groove to close it. The buckle plate includes a supporting sealing plate, a supporting engagement spring, and a closing block for insertion. The sealing plate is placed at the top of the adjustment groove, and engagement springs are fixedly installed at the four corners of the sealing plate. A closing block penetrating the sealing plate is fixedly installed at one end of the engagement spring.

[0011] The above technical solution is adopted: the sealing plate of the buckle is placed at the top of the adjustment groove to seal the adjustment groove and prevent dust and other impurities from entering. The four corner springs provide support for the closing block, so that the closing block passes through the sealing plate and is inserted into the corresponding slot of the adjustment groove, realizing a tight connection between the buckle and the adjustment groove. This not only facilitates the installation and removal of the buckle, but also ensures the sealing of the adjustment groove.

[0012] Preferably, in any of the above embodiments, the sealing plate has a groove in the middle for guiding the movable pull rod, and slots on both sides of the groove for positioning the limiting blocks.

[0013] The above technical solution is adopted: the sliding groove in the middle of the sealing plate provides a guide for the movable pull rod, enabling it to move smoothly inside the sealing plate. The slots on both sides of the sliding groove cooperate with the limiting blocks. When the movable pull rod moves to the appropriate position, the limiting blocks pop out under the action of the limiting spring and lock into the slots, thereby positioning the movable pull rod and facilitating the adjustment of the position of the movable pull rod according to the length requirements of the temperature measuring connector connection line.

[0014] Preferably, in any of the above embodiments, the connecting wires of the movable pull rod and the temperature measuring connector are fitted together, the movable pull rod is movably connected to the inside of the sealing plate, the elastic dustproof cloth is fixedly installed on both sides of the movable pull rod, and the end of the elastic dustproof cloth away from the movable pull rod is fixedly installed with the sealing plate.

[0015] The above technical solution is adopted: the movable pull rod is in contact with the connecting wire of the temperature measuring connector. During the movement, it can drive the connecting wire to fold or extend, thereby adjusting the length of the connecting wire. The elastic dustproof cloth is fixed on both sides of the movable pull rod, and the other end is fixed to the sealing plate. When the movable pull rod moves, the elastic dustproof cloth expands and contracts accordingly, effectively preventing dust from entering the adjustment groove, protecting the internal structure, and also avoiding dust from damaging the connecting wire of the temperature measuring connector, thus extending the service life of the device.

[0016] Preferably, in any of the above embodiments, the limiting block includes a limiting spring for support and a movable block for positioning. The limiting spring is fixedly installed inside the movable pull rod, and one end of the limiting spring is fixedly installed with the movable block that moves inside the movable pull rod.

[0017] The above technical solution is as follows: When it is necessary to adjust the position of the movable pull rod, the elastic force of the limit spring is overcome, and the movable block is pushed to disengage from the slot, so that the movable pull rod can be moved. When the movable pull rod reaches the appropriate position, the movable block is released, and under the action of the limit spring, the movable block is re-engaged into the slot, thereby achieving the positioning of the movable pull rod and ensuring that the movable pull rod will not move arbitrarily during use, thus ensuring the stability of the device.

[0018] Compared with the prior art, the advantages and beneficial effects of this utility model are as follows:

[0019] 1. An adjustable locking plate is provided to allow the testing fixture to accommodate battery protection boards of various sizes. An adjustment slot is provided on one side of the testing fixture to store the temperature measuring connector. The length of the connecting wire of the temperature measuring connector can be adjusted according to the different sizes of the battery protection board. The temperature sensor and temperature measuring connector fixed inside the testing fixture are used to detect the temperature inside and outside of the battery protection board, which enhances the applicability of the temperature testing device and improves the convenience of using the temperature testing device.

[0020] 2. An adjustable pull rod is installed at one end of the detection base to fold and extend the connecting wire of the temperature measuring connector. The position of the pull rod can be adjusted by controlling the limit block according to the needs of use, thereby adjusting the position of the temperature measuring connector and improving the convenience of adjusting the temperature testing device.

[0021] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0022] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0023] Figure 1 This is a schematic diagram of the structure according to an embodiment of the present utility model;

[0024] Figure 2 This is an exploded structural diagram according to an embodiment of the present utility model;

[0025] Figure 3 This is a schematic diagram of the structure of the buckle plate according to an embodiment of the present utility model;

[0026] Figure 4 This is a cross-sectional structural diagram of the movable tie rod according to an embodiment of the present utility model;

[0027] Among them: 1-temperature measuring connector, 2-temperature sensor, 3-detection fixing seat, 4-clamping fastening plate, 41-high strength torsion spring, 42-rotating shaft, 43-fastening band, 44-clamping plate, 5-adjusting groove, 6-movable pull rod, 7-limiting block, 71-limiting spring, 72-moving block, 8-elastic dustproof cloth, 9-fastening plate, 91-sealing plate, 92-clamping spring, 93-closing block. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the following description.

[0029] like Figure 1-4As shown, a temperature testing device for a battery protection board according to an embodiment of the present invention includes a temperature measuring connector 1 connected to the battery protection board. One end of the temperature measuring connector 1 is signal-connected to a main control unit for signal processing. The main control unit is signal-connected to a temperature sensor 2 that is attached to the surface of the battery protection board. A detection fixing seat 3 is fixedly installed on the surface of the temperature sensor 2 to support it. Both ends of the detection fixing seat 3 are fixedly installed with telescopically adjustable locking plates 4. One end of the detection fixing seat 3 is provided with an adjustment groove 5 for storing the connecting wire of the temperature measuring connector 1. The interior of the adjustment groove 5 is provided with a movable pull rod 6 for folding the connecting wire of the temperature measuring connector 1. The interior of the movable pull rod 6 is fixedly installed with a limiting block 7 for positioning it. Elastic dustproof cloths 8 are provided on both sides of the limiting block 7 for protection.

[0030] Preferably, in any of the above solutions, the inside of the detection fixture 3 is provided with a fixing groove for fixing the temperature sensor 2, the main control unit is located inside the detection fixture 3, and the connecting wire of the temperature measuring connector 1 passes through the detection fixture 3 and the main control unit for signal connection.

[0031] The above technical solution provides a stable mounting position for the temperature sensor 2 in the fixing groove inside the detection mounting base 3, ensuring that the temperature sensor 2 can stably fit against the surface of the battery protection board during the test and accurately measure the temperature. The main control unit is set inside the detection mounting base 3, which not only saves space but also reduces the complexity of the wiring connection. The connection wire of the temperature measuring connector 1 can directly pass through the detection mounting base 3 and connect to the main control unit, ensuring the stability of signal transmission.

[0032] Preferably, in any of the above embodiments, the locking fastening plate 4 includes a high-strength torsion spring 41 that provides power, a rotating shaft 42 that is wound up, a fastening band 43 that is pulled, and a locking plate 44 that is locked and fastened. The high-strength torsion spring 41 is fixedly installed inside the detection fixing seat 3. One end of the high-strength torsion spring 41 is fixedly installed with the rotating shaft 42 that rotates inside the detection fixing seat 3. The fastening band 43 is fixedly installed on the surface of the rotating shaft 42, and the locking plate 44 is fixedly installed on one end of the fastening band 43.

[0033] The above technical solution is adopted: the high-strength torsion spring 41 of the locking fastening plate 4 is installed inside the detection fixing seat 3 to provide power for the entire locking fastening plate 4. When it is necessary to fix the battery protection plate, the drive shaft 42 is rotated, so that the fastening band 43 wrapped on the drive shaft 42 is unfolded, and the locking plate 44 is extended. By adjusting the torque of the high-strength torsion spring 41, the locking plate 44 can be adapted to battery protection plates of different sizes and be firmly locked to them, ensuring that the relative position of the device and the battery protection plate is stable during the test.

[0034] Preferably, in any of the above embodiments, a buckle plate 9 is provided above the adjustment groove 5 to close it. The buckle plate 9 includes a supporting sealing plate 91, a supporting engagement spring 92, and a closing block 93 for insertion. The sealing plate 91 is placed at the top of the adjustment groove 5, and engagement springs 92 are fixedly installed at the four corners of the sealing plate 91. A closing block 93 that penetrates the sealing plate 91 is fixedly installed at one end of the engagement spring 92.

[0035] The above technical solution is adopted: the sealing plate 91 of the buckle plate 9 is placed at the top of the adjustment groove 5 to seal the adjustment groove 5 and prevent dust and other impurities from entering. The four corner locking springs 92 provide support for the closing block 93, so that the closing block 93 passes through the sealing plate 91 and is inserted into the corresponding slot of the adjustment groove 5, realizing the tight connection between the buckle plate 9 and the adjustment groove 5. This not only facilitates the installation and disassembly of the buckle plate 9, but also ensures the sealing of the adjustment groove 5.

[0036] Preferably, the sealing plate 91 has a groove in the middle for guiding the movable pull rod 6, and slots on both sides of the groove for positioning the limiting block 7.

[0037] The above technical solution is adopted: the groove in the middle of the sealing plate 91 provides a guide for the movable pull rod 6, so that it can move smoothly inside the sealing plate 91. The slots on both sides of the groove cooperate with the limiting block 7. When the movable pull rod 6 moves to the appropriate position, the limiting block 7 pops out and locks into the slot under the action of the limiting spring 71, thereby positioning the movable pull rod 6 and facilitating the adjustment of the position of the movable pull rod 6 according to the length requirements of the connecting wire of the temperature measuring connector 1.

[0038] Preferably, in any of the above schemes, the connecting wires of the movable pull rod 6 and the temperature measuring connector 1 are attached, the movable pull rod 6 is movably connected to the inside of the sealing plate 91, the elastic dustproof cloth 8 is fixedly installed on both sides of the movable pull rod 6, and the end of the elastic dustproof cloth 8 away from the movable pull rod 6 is fixedly installed with the sealing plate 91.

[0039] The above technical solution is adopted: the movable pull rod 6 is attached to the connecting line of the temperature measuring connector 1. During the movement, it can drive the connecting line to fold or extend, thereby adjusting the length of the connecting line. The elastic dustproof cloth 8 is fixed on both sides of the movable pull rod 6, and the other end is fixed to the sealing plate 91. When the movable pull rod 6 moves, the elastic dustproof cloth 8 extends and retracts accordingly, effectively preventing dust from entering the adjustment groove 5, protecting the internal structure, and also avoiding dust from damaging the connecting line of the temperature measuring connector 1, thus extending the service life of the device.

[0040] Preferably, in any of the above solutions, the limiting block 7 includes a limiting spring 71 for support and a movable block 72 for positioning. The limiting spring 71 is fixedly installed inside the movable pull rod 6, and one end of the limiting spring 71 is fixedly installed with the movable block 72 that moves inside the movable pull rod 6.

[0041] By adopting the above technical solution: when it is necessary to adjust the position of the movable pull rod 6, the elastic force of the limiting spring 71 is overcome, and the movable block 72 is pushed to disengage it from the slot, so that the movable pull rod 6 can be moved. When the movable pull rod 6 reaches the appropriate position, the movable block 72 is released, and under the action of the limiting spring 71, the movable block 72 is re-engaged into the slot, thereby achieving the positioning of the movable pull rod 6 and ensuring that the movable pull rod 6 will not move arbitrarily during use, thus ensuring the stability of the device.

[0042] The working principle of the temperature testing device for a battery protection board of this utility model is as follows:

[0043] When using this battery protection board temperature testing device, first connect the temperature measuring connector 1 to the battery protection board. According to the size of the battery protection board, adjust the locking plate 4. The high-strength torsion spring 41 drives the rotating shaft 42 to rotate, so that the fastening band 43 drives the locking plate 44 to extend, and firmly fix the detection fixing seat 3 on the battery protection board, ensuring that the temperature sensor 2 is in close contact with the surface of the battery protection board. The temperature sensor 2 monitors the surface temperature of the battery protection board in real time and transmits the data to the main control unit located in the detection fixing seat 3. At the same time, the temperature data of the internal temperature of the battery protection board detected by the temperature measuring connector 1 is also transmitted to the main control unit for processing. If it is necessary to adjust the length of the connecting wire of the temperature measuring connector 1, push the movable block 72 to move the movable pull rod 6 in the groove of the sealing plate 91, causing the connecting wire to fold or extend. After adjustment, release the movable block 72, and the limit block 7 repositions the movable pull rod 6.

[0044] Compared with the prior art, the present invention has the following advantages:

[0045] 1. An adjustable locking plate 4 is provided so that the detection fixture 3 can adapt to battery protection boards of various sizes. An adjustment slot 5 is provided on one side of the detection fixture 3 to accommodate the temperature measuring connector 1. The length of the connecting wire of the temperature measuring connector 1 can be adjusted according to the different sizes of the battery protection board. The temperature sensor 2 and the temperature measuring connector 1 fixed inside the detection fixture 3 are used to detect the temperature inside and outside of the battery protection board, respectively, which enhances the applicability of the temperature testing device and improves the convenience of using the temperature testing device.

[0046] 2. An adjustable movable lever 6 is provided at one end of the detection base 3 to fold and extend the connecting wire of the temperature measuring connector 1. The position of the movable lever 6 is adjusted by controlling the limit block 7 according to the needs of use, thereby adjusting the position of the temperature measuring connector 1 and improving the convenience of adjusting the temperature testing device.

Claims

1. A temperature testing device for a battery protection board, comprising a temperature measuring connector (1) connected to the battery protection board, wherein one end of the temperature measuring connector (1) is signal-connected to a main control unit for signal processing, characterized in that: The main control unit is connected to a temperature sensor (2) that is attached to the surface of the battery protection board. A detection mounting base (3) is fixedly installed on the surface of the temperature sensor (2) to support it. A telescopically adjustable locking plate (4) is fixedly installed at both ends of the detection mounting base (3). An adjustment groove (5) is provided at one end of the detection mounting base (3) to store the connecting wire of the temperature measuring connector (1). An movable pull rod (6) for folding the connecting wire of the temperature measuring connector (1) is movably connected inside the adjustment groove (5). A positioning block (7) for positioning is fixedly installed inside the movable pull rod (6). Elastic dustproof cloth (8) for protection is provided on both sides of the positioning block (7).

2. The temperature testing device for a battery protection board as described in claim 1, characterized in that: The detection fixture (3) has a fixing slot for fixing the temperature sensor (2) inside. The main control unit is located inside the detection fixture (3). The connecting wire of the temperature measuring connector (1) passes through the detection fixture (3) and is connected to the main control unit for signal connection.

3. The temperature testing device for a battery protection board as described in claim 2, characterized in that: The locking fastening plate (4) includes a high-strength torsion spring (41) that provides power, a rotating shaft (42) that winds up, a fastening band (43) that pulls, and a locking plate (44) that locks in and fastens. The high-strength torsion spring (41) is fixedly installed inside the detection fixing seat (3). One end of the high-strength torsion spring (41) is fixedly installed with a rotating shaft (42) that rotates inside the detection fixing seat (3). The surface of the rotating shaft (42) is fixedly installed with a fastening band (43), and one end of the fastening band (43) is fixedly installed with a locking plate (44).

4. The temperature testing device for a battery protection board as described in claim 3, characterized in that: A buckle plate (9) is provided above the adjustment groove (5) to close it. The buckle plate (9) includes a sealing plate (91) for support, a locking spring (92) for support, and a closing block (93) for insertion. The sealing plate (91) is placed at the top of the adjustment groove (5). The four corners of the sealing plate (91) are fixedly installed with locking springs (92). One end of the locking spring (92) is fixedly installed with a closing block (93) that penetrates the sealing plate (91).

5. The temperature testing device for a battery protection board as described in claim 4, characterized in that: The sealing plate (91) has a groove in the middle for guiding the movable pull rod (6), and slots on both sides of the groove for positioning the limiting block (7).

6. The temperature testing device for a battery protection board as described in claim 5, characterized in that: The connecting line of the movable pull rod (6) and the temperature measuring connector (1) is attached. The movable pull rod (6) is movably connected to the inside of the sealing plate (91). The elastic dustproof cloth (8) is fixedly installed on both sides of the movable pull rod (6). The end of the elastic dustproof cloth (8) away from the movable pull rod (6) is fixedly installed with the sealing plate (91).

7. The temperature testing device for a battery protection board as described in claim 6, characterized in that: The limiting block (7) includes a limiting spring (71) for support and a movable block (72) for positioning. The limiting spring (71) is fixedly installed inside the movable pull rod (6), and one end of the limiting spring (71) is fixedly installed with the movable block (72) that moves inside the movable pull rod (6).

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