CN220105106U - Battery detection clamp - Google Patents

Abstract

The utility model belongs to the technical field of battery manufacturing, and provides a battery detection clamp which comprises a frame, a probe and a symmetrical gate, wherein the frame is provided with a guide shaft and at least two connecting shafts which are vertically arranged, and the connecting shafts are respectively positioned at two sides of the guide shaft; the probe is arranged on the frame and comprises a current shaft capable of overload and high current, and the current shaft is provided with a contact head which is contacted with the surface of the busbar; the symmetrical gate is connected to the frame and is used for the synchronous operation of both hands of a person to make the probes on the frame contact or separate from the bus; the symmetrical brake comprises two side handles which are symmetrically arranged and are respectively connected with the rotating shaft of the connecting shaft on the frame; the handles on two sides are connected with each other and arranged on the guide shaft, and can move up and down along the guide shaft. The utility model solves the technical problems of complicated clamping operation of detecting connecting equipment and easy heating caused by small overload current when detecting the battery in the prior art.

Description

Battery detection clamp

Technical Field

The utility model belongs to the technical field of battery manufacturing, and particularly relates to a battery detection clamp.

Background

In energy management applications for energy storage devices, capacity-division management of batteries is generally employed to maximize the utilization of battery performance. In the capacity-dividing operation of the battery, the battery in the battery pack needs to be detected for subsequent sorting configuration.

In a common battery pack, the battery pack is generally composed of a battery module, and a bus bar is arranged on the battery module. During capacity division detection, the current adopted mode is to clamp crocodile clamps one by one on a busbar of a battery module, realize electric connection with detection equipment by using the crocodile clamps, and then perform detection operations such as charging and discharging.

However, because the contact area between the crocodile clip and the busbar is small, the overload of large current cannot be realized, the charge and discharge time is prolonged, the battery is easy to heat and even damage, the service life of the battery is influenced, and potential safety hazards easily exist. In addition, the clamping operation is tedious, the battery modules in the battery pack are required to be disassembled, crocodile clips are clamped on the bus bars one by one, repeated operation is more and time-consuming, and detection efficiency is low.

Disclosure of Invention

The embodiment of the utility model aims to provide a battery detection clamp, which solves the technical problems that in the prior art, when a battery is detected, the clamping operation of detection connecting equipment is complicated, and the heating is easy due to small overload current.

In order to achieve the above purpose, the utility model adopts the following technical scheme: providing a battery detection clamp which is used for being installed on a busbar of a battery module during detection; the battery detection jig includes:

the frame is provided with a guide shaft and at least two connecting shafts which are vertically arranged, and the at least two connecting shafts are respectively positioned at two sides of the guide shaft;

a probe disposed on the frame, the probe including a current shaft capable of overload of a large current, the current shaft having thereon a contact head in contact with the bus bar surface;

a symmetrical gate connected to the frame, the symmetrical gate being for a person to operate simultaneously with both hands to contact or separate the probes on the frame from the bus bars; the symmetrical brake comprises two side handles which are symmetrically arranged, and the two side handles are respectively connected with a connecting shaft rotating shaft on the frame; the handles on the two sides are connected with each other, are arranged on the guide shaft and can move up and down along the guide shaft.

Therefore, the battery detection fixture is provided with the probe capable of overload heavy current, the probe is provided with the current shaft, and the current shaft is provided with the contact head capable of being contacted with the surface of the busbar, so that the contact surface with the busbar is effectively increased, the realization of heavy current charge and discharge test is facilitated, and the detection efficiency is further improved. In addition, the symmetrical gate is adopted, so that an operator can synchronously press down or lift up the gate body with two hands to realize synchronous contact or separation of a plurality of probes and each busbar, the stability of electrical contact is effectively ensured, and potential safety hazards are further eliminated.

The structure of the symmetrical brake is improved, handles on two sides comprise handles and supports used for being installed on the battery module, mounting seats are arranged on the supports, each mounting seat comprises a connecting plate and connecting lugs arranged on the connecting plate, the upper ends of the connecting lugs are connected with a handle rotating shaft, sleeves are arranged at the lower ends of the connecting lugs, and the sleeves are sleeved with the connecting shafts. Thus, the bracket is used as a supporting piece which is supported on the battery module when the battery detection clamp is arranged on the battery box. The connecting plate is used for being connected with the support on the mount pad, and the engaging lug sets up on the connecting plate and outwards extends to the handle is connected in the upper end pivot of engaging lug, thereby adapts to the distance between the two hands of staff, makes things convenient for the synchronous operation of two hands of staff. The lower extreme of engaging lug sets up the sleeve that is used for cup jointing the connecting axle, utilizes the sleeve to carry out spacingly to the activity of connecting axle, and then the upper and lower motion orbit of limiting the connecting axle, lets the frame can steadily reciprocate, ensures each probe on the frame and the synchronous connection or the synchronous separation of busbar effectively.

Optionally, the connecting plate is integrally connected with the connecting lug, and a screw hole is formed in the connecting plate; the bracket is provided with a first mounting hole corresponding to the screw hole. Therefore, on each mounting seat of the symmetrical brake, the connecting plate is integrally connected with the connecting lugs to ensure the structural strength, and screw holes are formed in the connecting plate and correspond to the first mounting holes on the support, so that fasteners such as screws and the like can be installed in a penetrating manner for fixation. Simple structure, easy implementation and effectively ensured connection strength.

Optionally, a movable ring is connected between the handle and the linkage shaft, the movable ring comprises a pair of connecting strips symmetrically arranged, and two ends of the connecting strips are respectively connected with the handle and the linkage shaft through rotating shafts. Therefore, a plurality of rotating shaft connecting points are added between the handle and the connecting shaft by utilizing the movable ring, so that the flexibility of movement between the handle and the connecting shaft is improved.

Optionally, the frame includes a base plate and a transverse plate connected to the base plate, the guide shaft is fixed on the central part of the base plate, and the base plate is provided with a avoidance hole for the bracket to pass through; the transverse plate is provided with a second mounting hole for mounting the probe. On the one hand, the bracket can pass through the avoidance hole on the base plate to extend downwards and be arranged on the battery module, and the frame is only movably connected with the handle by the connecting shaft and is driven by the handle to move up and down so as to realize the function of opening and closing the brake. On the other hand, a plurality of second mounting holes for mounting probes can be formed in the transverse plate, and the second mounting holes correspond to the positions of the buses on the battery module, so that the probes mounted on the second mounting holes are automatically aligned with the buses.

Optionally, a bearing is arranged on the connecting part between the handles at two sides, and the bearing is sleeved with the guide shaft, so that the moving smoothness is improved.

The structure of the probe is improved, the probe further comprises a fixing sleeve and a voltage needle, the fixing sleeve comprises a bolt and a nut, and the bolt and the nut are clamped on the frame up and down; the voltage pin is connected in the current shaft in a penetrating way, and the voltage pin and the current shaft are sleeved in the fixed sleeve; an insulator is arranged between the voltage pin and the current shaft; one end of the voltage pin penetrates out of the contact head of the current shaft, and the other end of the voltage pin penetrates out of the extending end of the current shaft. On the one hand, the fixing sleeve comprises a bolt and a nut, and the bolt and the nut are used for clamping on the frame up and down, so that the whole probe is fixed. On the other hand, one end of the voltage pin penetrates out of the contact head of the current shaft, so that the voltage pin and the contact head of the current shaft can be in electrical contact with the busbar synchronously, and voltage and current are collected respectively. The other end of the voltage pin penetrates out of the extending end of the current shaft so as to be connected with an external circuit.

Optionally, the probe further comprises an elastic piece, wherein the elastic piece is sleeved on the current shaft and is elastically arranged in the fixing sleeve; and the extending end of the current shaft is provided with a limit nut, and the limit nut is used for limiting the range of the current shaft driven to move by the elastic piece. Therefore, the current shaft can elastically move on the fixed sleeve, so that the contact head on the current shaft is tightly connected with the contact surface of the busbar, and the stability of electric connection is effectively ensured.

The mounting structure of the battery detection clamp is improved, the battery detection clamp further comprises a fixing assembly used for being fixed on the battery box, the fixing assembly comprises a cross beam which is connected with a limit column in the battery box in a mounting mode, and the symmetrical gate is mounted on the cross beam, so that the probes on the frame correspond to the busbar on the battery module in position. When in detection, only the case cover of the battery case is required to be disassembled, and the battery detection clamp disclosed by the utility model can be fixed on the battery case in batches by using the mounting connection of the cross beam and each limit post, and each probe on each battery detection clamp corresponds to the position of the busbar on each battery module. Even if each probe is electrically connected with each busbar, the symmetrical gate is operated, so that the clamping efficiency is effectively improved.

Optionally, the both ends of crossbeam all have and extend the ear, extend the ear and be used for shelving on the gird of battery box to make the people's hand apply the downforce of symmetry floodgate to shift to on the battery box through the crossbeam, reduce downforce directly and act on the battery module effectively, and then improve the protection effect to the battery module.

The battery detection clamp provided by the utility model has the beneficial effects that: compared with the prior art, the battery detection clamp can replace the traditional crocodile clamp wiring mode, crocodile clamps are not required to be installed on the bus bars of each battery module one by one during detection, and the time for disassembling the primary battery pack and the battery module is effectively saved. The case lid of unpacking the battery case is fixed battery detection anchor clamps on the battery case, can test each battery module in the whole battery case, improves clamping efficiency effectively.

The battery clamp provided by the utility model adopts the symmetrical gate arrangement, so that an operator can synchronously press down or lift up the gate body by two hands to realize synchronous contact or separation of a plurality of probes and each busbar, the stability of electrical contact is effectively ensured, and potential safety hazards are further eliminated.

In addition, the problem that the overload current of the crocodile clip is small, so that the crocodile clip is easy to heat is solved. The battery detection clamp is provided with the probe capable of overload heavy current, the probe is provided with the current shaft, and the contact head on the current shaft can be in contact with the busbar on the battery module. Compared with the crocodile clip adopted in the prior art, the crocodile clip effectively increases the contact surface with the busbar, is favorable for realizing high-current charge and discharge test, and further improves the detection efficiency.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a view showing a structure in which a battery detection jig according to an embodiment of the present utility model is mounted on a battery box;

fig. 2 is a schematic diagram of a three-dimensional structure of a battery detection fixture according to an embodiment of the present utility model;

fig. 3 is a schematic diagram of an explosion structure of a battery detection fixture according to an embodiment of the present utility model;

fig. 4 is a schematic diagram of a three-dimensional structure of a probe according to an embodiment of the present utility model;

FIG. 5 is a schematic diagram of a symmetrical gate pull state on a battery detection clamp according to an embodiment of the present utility model;

FIG. 6 is a schematic diagram of a structure of a symmetric gate press state on a battery test fixture according to an embodiment of the present utility model;

FIG. 7 is a schematic view of an exploded handle structure according to an embodiment of the present utility model;

FIG. 8 is a schematic view of a handle mounted on a handle mount according to an embodiment of the present utility model;

fig. 9 is a schematic perspective view of a frame according to an embodiment of the present utility model;

FIG. 10 is a cross-sectional view of a probe mounted on a frame according to an embodiment of the present utility model;

FIG. 11 is a schematic diagram of an explosion structure of a probe according to an embodiment of the present utility model;

fig. 12 is an exploded view of a battery case equipped with a battery detection jig according to an embodiment of the present utility model;

fig. 13 is a schematic diagram of an assembled structure of a battery detection fixture and a fixing assembly according to an embodiment of the present utility model.

Wherein, each reference sign in the figure:

100-battery module; 101-a limit column;

200-battery detection clamp;

1-a frame; 11-a guide shaft; 12-a linkage shaft; 13-a substrate; 131-avoiding holes; 14-transverse plates; 141-a second mounting hole;

2-probe; 21-current axis; 211-contacts; 212-limiting nuts; 22-fixing sleeve; 221-bolts; 222-nut; 23-voltage pins; 24-insulator; 25-an elastic member;

3-symmetrical gates;

4-a handle; 41-a handle; 42-a bracket; 421-first mounting hole; 43-mounting base; 431-connecting plate; 432-connecting lugs; 433-sleeve; 434-screw holes; 44-a movable ring; 441-connecting bars; 45-bearing;

5-a cross beam; 51-extending ears.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are merely for convenience in describing and simplifying the description based on the orientation or positional relationship shown in the drawings, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

The battery detection jig provided by the embodiment of the utility model is described in detail. Referring to fig. 1 and 2 together, a battery module 100 is disposed on a battery box, and the battery inspection jig 200 of the present utility model is installed when inspecting the battery module 100. The battery detection jig 200 is used as a connection terminal between the detection device and the battery module 100, and is mounted on a bus bar of the battery module 100 at the time of detection. The battery detection jig 200 includes a frame 1, a probe 2, and a symmetrical shutter 3.

Referring to fig. 2, 3 and 4, the frame 1 is disposed above the bus bars of each battery module 100, and the frame 1 is provided with a guide shaft 11 and at least two connecting shafts 12 disposed vertically, where the two connecting shafts 12 are located at two sides of the guide shaft 11.

The probe 2 is provided on the frame 1, as shown in fig. 4, the probe 2 includes a current shaft 21 capable of overloading a large current, and the current shaft 21 has a contact head 211 thereon which contacts with the bus bar surface.

Referring to fig. 3, 5 and 6, the symmetrical gate 3 is connected to the frame 1, and the symmetrical gate 3 is used for both hands of a person to synchronously push down or pull up, so that the probes 2 on the frame 1 can synchronously contact or separate from the bus bars. The symmetrical brake 3 comprises two handles 4 symmetrically arranged on two sides, and the handles 4 on the two sides are respectively connected with a connecting shaft 12 on the frame 1 in a rotating shaft manner.

The handles 4 are connected to each other and are provided on the guide shaft 11 so that the handles 4 can move up and down along the guide shaft 11.

Compared with the prior art, the battery detection clamp 200 provided by the embodiment of the utility model can replace the traditional crocodile clamp wiring mode, and crocodile clamps are not required to be arranged on the bus bars of each battery module 100 one by one during detection, so that the time for disassembling a primary battery pack and disassembling the battery modules is effectively saved. The battery detection clamp 200 is fixed on the battery box by disassembling the box cover of the battery box, so that each battery module 100 in the whole battery box can be tested, and the clamping efficiency is effectively improved.

The battery clamp is provided with the symmetrical gate 3, so that an operator can synchronously press down or lift up the gate body by two hands to realize synchronous contact or separation of the plurality of probes 2 and each busbar, the stability of electrical contact is effectively ensured, and potential safety hazards are eliminated.

In addition, the problem that the overload current of the crocodile clip is small, so that the crocodile clip is easy to heat is solved. The battery detection jig 200 of the present utility model is provided with a probe 2 capable of overload and large current, a current shaft 21 provided on the probe 2, and a contact head 211 provided on the current shaft 21 capable of contacting with a bus bar provided on the battery module 100. Compared with the crocodile clip adopted in the prior art, the crocodile clip effectively increases the contact surface with the busbar, is favorable for realizing high-current charge and discharge test, and further improves the detection efficiency.

For the structure of the symmetrical gate 3, in one embodiment of the present utility model, referring to fig. 3, 7 and 8, the handles 4 on both sides each include a handle 41 and a bracket 42 for mounting on the battery module 100, and a mounting seat 43 is provided on the bracket 42. As shown in fig. 8, the mounting seat 43 includes a connection plate 431 and a connection lug 432 disposed on the connection plate 431, the upper end of the connection lug 432 is connected with the handle 41 through a rotation shaft, a sleeve 433 is disposed at the lower end of the connection lug 432, and the sleeve 433 is sleeved with the connecting shaft 12.

In this way, the bracket 42 serves as a support member that is supported on the battery module 100 when the battery detection jig 200 is provided on the battery box. The connecting plate 431 on the mounting seat 43 is used for being connected with the bracket 42, and the connecting lug 432 is arranged on the connecting plate 431 and extends outwards, so that the handle 41 is connected to the upper end rotating shaft of the connecting lug 432, the distance between two hands of a human hand is adapted, and the synchronous operation of the two hands of the human hand is facilitated. The lower extreme of engaging lug 432 sets up the sleeve 433 that is used for cup jointing the connecting axle 12, utilizes sleeve 433 to carry out spacingly to the activity of connecting axle 12, and then the upper and lower motion orbit of limiting connecting axle 12, lets frame 1 can steadily reciprocate, ensures each probe 2 on the frame 1 and the synchronous connection or the synchronous separation of busbar effectively.

In an embodiment of the present utility model, referring to fig. 7 and 8, the connection plate 431 may be integrally connected with the connection lug 432 to ensure structural strength.

The connection plate 431 is provided with a screw hole 434, and the bracket 42 is provided with a first mounting hole 421 corresponding to the screw hole 434, so that a fastener such as a screw or the like can be inserted and fixed. Simple structure, easy implementation and effectively ensured connection strength.

Preferably, as shown in fig. 7, the first mounting hole 421 is a long hole, so as to facilitate adjusting the setting height of the mounting seat 43 on the bracket 42, thereby improving the adjustment performance of the bracket 42.

In the embodiment of the present utility model, referring to fig. 8, a movable ring 44 is connected between the handle 41 and the linkage shaft 12, the movable ring 44 includes a pair of symmetrically arranged connecting strips 441, and two ends of the connecting strips 441 are respectively connected with the handle 41 and the linkage shaft 12 through rotating shafts. In this way, a plurality of rotating shaft connecting points are added between the handle 41 and the connecting shaft 12 by utilizing the movable ring 44, so that the flexibility of movement between the handle 41 and the connecting shaft 12 is improved.

In the embodiment of the present utility model, referring to fig. 3, a bearing 45 is disposed at a connection portion between the brackets 42 on the handles 4 at both sides, and the bearing 45 is sleeved with the guiding shaft 11, so as to improve the smoothness of movement. Preferably, the bearing 45 may be provided at the center of the above-mentioned connection portion to improve the balance of the both side handles 4.

For the structure of the frame 1, in one embodiment of the present utility model, referring to fig. 3, 7 and 9, the frame 1 includes a base plate 13 and a transverse plate 14 connected to the base plate 13, the guide shaft 11 is vertically fixed on a central portion of the base plate 13, and the base plate 13 is provided with a plurality of avoidance holes 131 for the brackets 42 to pass through, and the number of the avoidance holes 131 is equal to that of the brackets 42 and symmetrically arranged on both sides of the guide shaft 11. Therefore, the bracket 42 can extend downwards through the avoiding hole 131 on the base plate 13 and is arranged on the battery module 100, and the frame 1 is only movably connected with the handle 4 by the linkage shaft 12 and is driven by the handle 4 to move up and down so as to realize the function of opening and closing the brake.

As shown in fig. 9, a plurality of second mounting holes 141 for mounting the probes 2 are provided in the lateral plate 14, and the second mounting holes 141 correspond to the respective bus bar positions on the battery module 100, so that the probes 2 mounted on the second mounting holes 141 are automatically aligned with the bus bars.

The second mounting hole 141 on the transverse plate 14 may be a kidney-shaped hole, so as to facilitate fine adjustment of the fixing position of the probe 2, thereby improving the position adaptability.

For the structure of the probe 2, in one embodiment of the present utility model, referring to fig. 10 and 11, the probe 2 further includes a fixing sleeve 22 and a voltage pin 23, and the fixing sleeve 22 includes a bolt 221 and a nut 222, and the bolt 221 and the nut 222 are clamped on the frame 1 up and down. The bolt 221 is used for penetrating through the second mounting hole 141 of the frame 1, the nut 222 is screwed on the bolt 221, and the bolt 221 and the nut 222 are clamped on the transverse plate 14 of the frame 1 up and down, so as to fix the whole probe 2.

Preferably, the fixing sleeve 22 is made of plastic bolts 221 and nuts 222, so as to improve the insulation effect.

In this embodiment, the voltage pin 23 is connected to the current shaft 21 in a penetrating manner, and both the voltage pin 23 and the current shaft 21 are sleeved in the fixing sleeve 22. An insulator 24 is provided between the voltage pin 23 and the current shaft 21, and the insulator 24 may preferably be an insulating tube sleeved between the voltage pin 23 and the current shaft 21, thereby preventing a short circuit.

One end of the voltage pin 23 penetrates through the contact head 211 of the current shaft 21, so that the voltage pin 23 and the contact head 211 of the current shaft 21 can be synchronously and electrically contacted with the bus bar, and voltage and current are respectively collected. The other end of the voltage pin 23 is passed out from the extended end of the current shaft 21 so as to be connected to an external line, such as a connection line of a detecting device.

In the embodiment of the present utility model, referring to fig. 10 and 11, the probe 2 further includes an elastic member 25, and the elastic member 25 may preferably be a spring, and the elastic member 25 is sleeved on the current shaft 21 and is elastically disposed inside the fixing sleeve 22.

In this embodiment, as shown in fig. 10, when the current shaft 21 is sleeved on the fixing sleeve 22, the contact 211 on the current shaft 21 seals the port of the bolt 221 of the fixing sleeve 22. The elastic member 25 "elastically disposed inside the fixing sleeve 22" may be configured to: when the elastic member 25 is disposed in the fixing sleeve 22, one end of the elastic member 25 abuts against the inner wall of the nut 222, and the other end of the elastic member 25 abuts against the contact head 211 of the current shaft 21.

As shown in fig. 10 and 11, a limit nut 212 is disposed on the extending end of the current shaft 21, and the limit nut 212 is used for limiting the range of motion of the current shaft 21 driven by the elastic member 25. The current shaft 21 can elastically move on the fixing sleeve 22, so that the contact head 211 on the current shaft 21 is tightly connected with the contact surface of the busbar, and the stability of electrical connection is effectively ensured.

Preferably, at least two limit nuts 212 are disposed on the current shaft 21 and are fixed on the extending end of the current shaft 21 through threaded connection, and an electrode connecting piece between the two limit nuts 212 can be used for clamping and fixing the current shaft 21 and connecting with an external circuit.

As for the mounting structure of the battery detection jig 200, in the embodiment of the present utility model, referring to fig. 12 and 13 together, a battery case has a stopper post 101 therein for defining the mounting position of each battery module 100. The battery detection jig 200 further includes a fixing assembly for fixing to the battery box, the fixing assembly including a cross beam 5, the cross beam 5 being mounted to be connected to the upper end of each of the stopper posts 101.

The symmetrical gate 3 of the battery inspection jig 200 is mounted on the beam 5 such that the frame 1 is positioned above the battery module 100, and the probes 2 on the frame 1 correspond to the bus bar positions on the battery module 100.

During detection, only the cover of the battery box needs to be disassembled, and the battery detection clamps 200 can be fixed on the battery box in batches by using the mounting connection of the cross beam 5 and each limit post 101, and each probe 2 on each battery detection clamp 200 corresponds to the busbar position on each battery module 100. The symmetrical gate 3 is operated to effectively improve the clamping efficiency even though each probe 2 is electrically connected to each bus.

Since the operator needs to press down the symmetrical gate 3, the probe 2 is driven to electrically contact with the bus. The downward pressure applied by the operator is easily applied to the battery module 100 directly, and damage to the battery module 100 is easily caused. For this reason, in the present embodiment, as shown in fig. 12 and 13, the two ends of the cross beam 5 are further provided with extending lugs 51, and the extending lugs 51 are used to rest on the periphery of the battery box, so that the downward force applied by the hands of the person to the symmetrical gate 3 is transferred to the battery box through the cross beam 5, thereby effectively reducing the downward force to directly act on the battery module 100, and further improving the protection effect on the battery module 100.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims (10)

1. The battery detection clamp is used for being mounted on a busbar of a battery module during detection; the battery detection clamp is characterized by comprising:

the frame is provided with a guide shaft and at least two connecting shafts which are vertically arranged, and the at least two connecting shafts are respectively positioned at two sides of the guide shaft;

a probe disposed on the frame, the probe including a current shaft capable of overload of a large current, the current shaft having thereon a contact head in contact with the bus bar surface;

a symmetrical gate connected to the frame, the symmetrical gate being for a person to operate simultaneously with both hands to contact or separate the probes on the frame from the bus bars; the symmetrical brake comprises two side handles which are symmetrically arranged, and the two side handles are respectively connected with a connecting shaft rotating shaft on the frame; the handles on the two sides are connected with each other, are arranged on the guide shaft and can move up and down along the guide shaft.

2. The battery detection jig according to claim 1, wherein: the both sides handle all includes the handle and is used for installing support on the battery module, be equipped with the mount pad on the support, the mount pad includes the connecting plate and sets up engaging lug on the connecting plate, the upper end of engaging lug with the handle pivot is connected, the lower extreme of engaging lug is equipped with the sleeve, the sleeve with the connecting axle cup joints mutually.

3. The battery detection jig according to claim 2, wherein: the connecting plate is integrally connected with the connecting lugs, and screw holes are formed in the connecting plate; the bracket is provided with a first mounting hole corresponding to the screw hole.

4. The battery detection jig according to claim 2, wherein: the movable ring is connected between the handle and the connecting shaft and comprises a pair of symmetrically arranged connecting strips, and two ends of the connecting strips are respectively connected with the handle and the rotating shaft of the connecting shaft.

5. The battery detection jig according to claim 2, wherein: the frame comprises a base plate and a transverse plate connected to the base plate, the guide shaft is fixed to the central part of the base plate, and the base plate is provided with a avoiding hole for the bracket to pass through; the transverse plate is provided with a second mounting hole for mounting the probe.

6. The battery detection jig according to claim 1, wherein: the connecting part between the handles at the two sides is provided with a bearing, and the bearing is sleeved with the guide shaft.

7. The battery detection jig according to claim 1, wherein: the probe also comprises a fixing sleeve and a voltage needle, wherein the fixing sleeve comprises a bolt and a nut, and the bolt and the nut are clamped on the frame up and down; the voltage pin is connected in the current shaft in a penetrating way, and the voltage pin and the current shaft are sleeved in the fixed sleeve; an insulator is arranged between the voltage pin and the current shaft; one end of the voltage pin penetrates out of the contact head of the current shaft, and the other end of the voltage pin penetrates out of the extending end of the current shaft.

8. The battery detection jig according to claim 7, wherein: the probe also comprises an elastic piece, wherein the elastic piece is sleeved on the current shaft and is elastically arranged in the fixing sleeve; and a limit nut is arranged at the extending end of the current shaft.

9. The battery detection jig according to any one of claims 1 to 8, wherein: the battery detection clamp further comprises a fixing assembly used for being fixed on the battery box, the fixing assembly comprises a cross beam which is connected with a limit column in the battery box in an installation mode, and the symmetrical brake is installed on the cross beam, so that the probes on the frame correspond to the busbar on the battery module in position.

10. The battery detection jig according to claim 9, wherein: the both ends of crossbeam all have and extend the ear, extend the ear and be used for shelving on the girth of battery case.