CN220357141U

CN220357141U - Battery probe

Info

Publication number: CN220357141U
Application number: CN202321831250.0U
Authority: CN
Inventors: 姜志军; 全和清; 于建刚
Original assignee: Suzhou Hanhe Intelligent Equipment Co ltd
Current assignee: Suzhou Hanhe Intelligent Equipment Co ltd
Priority date: 2023-07-12
Filing date: 2023-07-12
Publication date: 2024-01-16
Anticipated expiration: 2033-07-12

Abstract

The utility model relates to a battery probe, which comprises a supporting plate and a supporting body fixedly connected to the supporting plate, wherein a current needle is arranged in the supporting body in a penetrating and sliding manner, and a buffer spring is wound on the current needle; the current needle slides and is provided with a voltage needle, a reset spring is wound on the voltage needle, and two ends of the voltage needle extend out from the end part of the current needle; the outer wall of the support body is provided with a pressure sensor, one end of the buffer spring is connected with the pressure sensor, and the other end of the buffer spring is fixedly connected in the support body; the temperature sensor is arranged on the supporting plate in a penetrating mode, a telescopic spring is arranged on the temperature sensor in a winding mode, and the top end of the temperature sensor is higher than the top end of the voltage needle in the vertical direction. The utility model has the advantage of improving the safety and stability.

Description

Battery probe

Technical Field

The utility model relates to the technical field of battery production, in particular to a battery probe.

Background

Rechargeable batteries are important power supply equipment in the industries of power systems, electric automobiles and the like. In the battery production process, the battery needs to be detected correspondingly, wherein in the process, the battery needs to be tested by using a probe, and the probe is pressed on a pole piece of the battery.

Along with the aging of battery production equipment, the pressure of each probe on the battery production equipment to the battery is reduced, the reduced pressure can enable the contact between the probe and a pole piece of the battery to be poor, the impedance is increased, the sampling data of the whole battery production equipment are inaccurate, the temperature rise of the probe and the pole piece of the battery can be caused, the problems of battery firing or battery explosion and the like can be caused, and the safety of battery processing is affected.

Disclosure of Invention

In view of the shortcomings of the prior art, an object of the present utility model is to provide a battery probe having advantages of improving safety and stability.

The above object of the present utility model is achieved by the following technical solutions:

the battery probe comprises a supporting plate and a supporting body fixedly connected to the supporting plate, wherein a current needle is arranged in the supporting body in a penetrating and sliding manner, and a buffer spring is wound on the current needle;

the current needle slides and is provided with a voltage needle, a reset spring is wound on the voltage needle, and two ends of the voltage needle extend out from the end part of the current needle;

the outer wall of the support body is provided with a pressure sensor, one end of the buffer spring is connected with the pressure sensor, and the other end of the buffer spring is fixedly connected in the support body;

the temperature sensor is arranged on the supporting plate in a penetrating mode, a telescopic spring is arranged on the temperature sensor in a winding mode, and the top end of the temperature sensor is higher than the top end of the voltage needle in the vertical direction.

The utility model is further provided with: one end of the current needle, which is far away from the pressure sensor, is provided with a conductive terminal, and a locking nut used for locking the conductive terminal is connected to the current needle in a threaded manner.

The utility model is further provided with: the spring groove is offered to the one end that the supporter is close to the backup pad, and the groove of stepping down has been offered to the other end, buffer spring one end links to each other with pressure sensor, and one end fixed connection is at the spring groove diapire, be connected with the through-hole between spring groove and the groove of stepping down, the electric current needle runs through the through-hole setting.

The utility model is further provided with: the voltage needle comprises a fixing part inserted in the current needle and a telescopic part arranged in the fixing part in a sliding manner, the bottom end of the fixing part extends out of the end part of the current needle, which is far away from the pressure sensor, the top end of the telescopic part extends out of the end part of the current needle, which is close to the pressure sensor, and the reset spring is wound on the telescopic part, and one end of the reset spring, which is far away from the telescopic part, is fixedly connected with the inner bottom wall of the fixing part.

The utility model is further provided with: the end part of the telescopic part, which is close to one end of the pressure sensor, is provided with a plurality of puncture needles.

In summary, the beneficial technical effects of the utility model are as follows:

1. besides the functions of the traditional probe are met, the pressure and the temperature of the probe and the battery pole piece can be accurately monitored at the same time, and the safety and the reliability of a battery production equipment control system are improved;

2. the end part of the voltage needle is provided with the puncture needle, and when the probe is used, the puncture needle on the current needle punctures the oxidation layer of the battery pole, so that the battery is more stable in charging and discharging.

Drawings

FIG. 1 is a schematic view of the overall structure of a battery probe according to an embodiment of the present application;

FIG. 2 is a cross-sectional view of a battery probe;

fig. 3 is an enlarged view of a portion a in fig. 2.

In the figure, 1, a supporting plate; 2. a support body; 3. a current pin; 31. a conductive terminal; 32. a lock nut; 33. a spring groove; 34. a relief groove; 35. a through hole; 4. a buffer spring; 5. a voltage pin; 51. a fixing part; 52. a telescopic part; 53. a needle; 6. a return spring; 7. a pressure sensor; 8. a temperature sensor; 9. and a telescopic spring.

Detailed Description

The present utility model will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, a battery probe according to the present utility model includes a support plate 1 horizontally disposed, the support plate 1 is rectangular, a support body 2 is fixedly connected to a lower end surface of the support plate 1, and the support body 2 is cylindrical. The current needle 3 is inserted in the support body 2 in a sliding manner, the current needle 3 is arranged in the vertical direction, the top end of the current needle 3 penetrates through the support plate 1 to extend out of the upper side, the bottom end of the current needle 3 penetrates through the lower end face of the support body 2 to extend out of the lower side, and the current needle 3 is stepped in the length direction. The support body 2 has been seted up the spring groove 33 near the one end of backup pad 1, and the support body 2 has been seted up the groove 34 of stepping down far away from the one end of backup pad 1, is connected with through-hole 35 between spring groove 33 and the groove 34 of stepping down, and spring groove 33, through-hole 35 and the groove 34 of stepping down all set up along support body 2 length direction, and current needle 3 runs through-hole 35 and sets up.

Referring to fig. 1 and 2, the top of the current needle 3 is sleeved with a pressure sensor 7, the middle of the current needle 3 is wound with a buffer spring 4, the buffer spring 4 is arranged in a spring groove 33, the top end of the buffer spring 4 is connected with the pressure sensor 7, and the bottom end of the buffer spring 4 is connected with the inner bottom wall of the spring groove 33. The bottom of current needle 3 is provided with conductive terminal 31, and conductive terminal 31 becomes the L type, and conductive terminal 31 upper and lower both ends all are provided with lock nut 32, and conductive terminal 31 does not lock nut 32 clamp, and two lock nuts 32 all are connected with current needle 3 outer wall screw thread, and current needle 3 passes through conductive terminal 31 and links to each other with outside transmission wire.

Referring to fig. 2 and 3, a voltage pin 5 is inserted through the current pin 3, both ends of the voltage pin 5 extend from the end of the current pin 3, the voltage pin 5 includes a fixing portion 51 and a telescopic portion 52 slidably disposed in the fixing portion 51, the fixing portion 51 is inserted into the current pin 3, the top end of the fixing portion 51 is disposed in the current pin 3, the bottom end of the fixing portion 51 extends from the end of the current pin 3 away from one end of the pressure sensor 7, and the bottom end of the fixing portion 51 is connected with an external transmission wire. The bottom of the telescopic part 52 is wound with a return spring 6, the top end of the return spring 6 is connected with the telescopic part 52, the bottom of the return spring 6 is connected with the inner bottom wall of the fixed part 51, and the top end of the telescopic part 52 extends out from the end of the current needle 3 close to one end of the pressure sensor 7.

Referring to fig. 3, the end of the telescoping portion 52 near one end of the pressure sensor 7 is provided with a plurality of lancets 53, and when the probe is used, the lancets 53 on the current needle 3 pierce the battery post oxide layer to charge and discharge the battery.

Referring to fig. 1, a temperature sensor 8 is provided on the support plate 1, and the tip of the temperature sensor 8 is higher than the tip of the voltage pin 5 in the vertical direction. The temperature sensor 8 comprises a movable rod and a sensing head arranged at the top end of the movable rod, the movable rod penetrates through the supporting plate 1, the movable rod is wound with a telescopic spring 9, the top end of the telescopic spring 9 is connected with the sensing head, and the bottom end of the telescopic spring 9 is connected with the upper end face of the supporting plate 1.

The implementation principle of the embodiment is as follows: when the battery is formed, capacity-divided or detected, the battery extrudes the battery probe, the battery probe moves relative to the battery, the current pin 3 and the voltage pin 5 are respectively abutted against the battery pole, the current pin 3 has axial buffer displacement due to the buffer spring 4, and the voltage pin 5 also has axial elastic reciprocating displacement under the drive of the reset spring 6, so that buffer compression joint is formed among the current pin 3, the voltage pin 5 and the battery pole, and the battery pole cannot be damaged. When the probe is pressed onto the battery pole, the voltage needle 5 is used for measuring the voltage at the position of the pole, and the current needle 3 is used for puncturing the oxide layer of the battery pole to charge and discharge the battery. The temperature sensor 8 feeds back the temperature of the battery in time, and the pressure sensor 7 feeds back the pressure applied to the battery. The temperature sensor 8 and the pressure sensor 7 are additionally arranged to timely feed back the temperature of the battery and the pressure pressed on the battery so as to reduce potential safety hazards and poor quality of the battery. The system can accurately monitor the pressure and the temperature of the probe and the battery pole piece at the same time besides the function of the traditional probe, timely report the abnormal pressure data and the abnormal temperature data of the battery production equipment to the system on the battery production equipment, timely make corresponding treatment measures by the system, and improve the safety and the reliability of the control system of the battery production equipment.

The embodiments of the present utility model are all preferred embodiments of the present utility model, and are not intended to limit the scope of the present utility model in this way, therefore: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims

1. The utility model provides a battery probe, includes backup pad (1) and fixed connection support body (2) on backup pad (1), its characterized in that: a current needle (3) is arranged in the support body (2) in a penetrating and sliding manner, and a buffer spring (4) is wound on the current needle (3);

a voltage needle (5) is slidably arranged in the current needle (3), a return spring (6) is wound on the voltage needle (5), and two ends of the voltage needle (5) extend out of the end part of the current needle (3);

the outer wall of the support body (2) is provided with a pressure sensor (7), one end of the buffer spring (4) is connected with the pressure sensor (7), and the other end of the buffer spring is fixedly connected in the support body (2);

the temperature sensor (8) is arranged on the supporting plate (1) in a penetrating mode, the telescopic spring (9) is arranged on the temperature sensor (8) in a winding mode, and the top end of the temperature sensor (8) is higher than the top end of the voltage needle (5) in the vertical direction.

2. A battery probe according to claim 1, wherein: one end of the current needle (3) far away from the pressure sensor (7) is provided with a conductive terminal (31), and a locking nut (32) used for locking the conductive terminal (31) is connected to the current needle (3) in a threaded mode.

3. A battery probe according to claim 2, wherein: the spring groove (33) has been seted up to the one end that supporter (2) is close to backup pad (1), and the groove of stepping down (34) has been seted up to the other end, buffer spring (4) one end links to each other with pressure sensor (7), and one end fixed connection is at spring groove (33) diapire, be connected with through-hole (35) between spring groove (33) and the groove of stepping down (34), electric current needle (3) run through-hole (35) setting.

4. A battery probe according to claim 1, wherein: the voltage needle (5) comprises a fixing portion (51) inserted into the current needle (3) and a telescopic portion (52) arranged in the fixing portion (51) in a sliding mode, the bottom end of the fixing portion (51) extends out of the end portion, away from the pressure sensor (7), of the current needle (3), the top end of the telescopic portion (52) extends out of the end portion, close to the pressure sensor (7), of the current needle (3), the reset spring (6) is wound on the telescopic portion (52), and one end, away from the telescopic portion (52), of the reset spring (6) is fixedly connected to the inner bottom wall of the fixing portion (51).

5. A battery probe according to claim 4, wherein: the end part of the telescopic part (52) close to one end of the pressure sensor (7) is provided with a plurality of needles (53).