CN217035749U - Clamp for balancing cylindrical lithium ion battery pack - Google Patents
Clamp for balancing cylindrical lithium ion battery pack Download PDFInfo
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- CN217035749U CN217035749U CN202121702658.9U CN202121702658U CN217035749U CN 217035749 U CN217035749 U CN 217035749U CN 202121702658 U CN202121702658 U CN 202121702658U CN 217035749 U CN217035749 U CN 217035749U
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Abstract
The utility model belongs to the technical field of batteries, and particularly relates to a clamp for balancing a cylindrical lithium ion battery pack, wherein a movable rod of the clamp is connected with a main frame through a rotating shaft; set up the spring between main frame and the movable rod and compress tightly the bolt and decide, the space between main frame and the movable rod is adjusted to clamp bolt, goes up utmost point post setting on the movable rod, and lower utmost point post setting is on the main frame, goes up utmost point post and sets up with lower utmost point post relatively. The utility model has the beneficial effects that: the structure is simple, the lower pole column is contacted with the negative electrode of the battery cell to be balanced, the distance between the main frame and the movable rod is adjusted by adjusting the compression bolt, and further the distance between the upper pole column and the lower pole column is adjusted, so that the upper pole column is in close contact with the positive electrode of the battery cell to be balanced, the clamp can be tightly connected with the positive electrode and the negative electrode of the battery, and the clamp is convenient to operate; the cross section area of the pole is large, so that large current balance can be supported, and the balance speed is improved; the upper and lower pole posts are not easy to short circuit and are reliably connected with the battery cell, so that the operation safety is improved.
Description
Technical Field
The utility model belongs to the technical field of batteries, and particularly relates to a clamp for balancing a cylindrical lithium ion battery pack.
Background
Lithium ion batteries have been widely used in the fields of electric tools, electric vehicles, mobile permission devices, energy storage, electric bicycles, and the like, and have become the most rapidly developed secondary power source at present. Wherein cylindrical lithium ion battery group is formed by cylindrical electric core combination, simple structure, and PACK is convenient, and the group battery shape is various, and the range of application is more and more wide. In the production process of the lithium ion battery PACK, single cells need to be matched, cells with better consistency such as voltage, internal resistance, capacity and self-discharge rate are matched, then PACK is carried out to combine the cells into the battery PACK, and after the production of the battery PACK is finished, the voltage difference of each series of cells is within a certain technical standard range. However, in the actual production process, due to factors such as poor PACK process control, the voltage difference of a part of the cells often exceeds an allowable value, and an equalization method needs to be adopted to eliminate the excessive voltage difference. In addition, because the self-discharge rates of the single battery cells are different, the voltage difference of each string of battery cells of the battery pack is gradually increased in the use process of the battery, so that the discharge capacity of the battery is reduced. Such capacity reduction due to self-discharge can also be repaired by means of equalization.
In actual equalization operation, the battery cell can be connected with equalization equipment such as a constant current source by utilizing a protection plate to measure clamps such as a flat cable or an alligator clip, and then charge and discharge equalization is performed. When the protection plate flat cable is adopted for balancing, the number of the flat cable is small, so that the balancing current cannot be too large, and the balancing efficiency is limited. When the crocodile clip and the like are adopted for connection, a proper clip point is difficult to find, and the reliability and the safety are poor.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art, and provides a clamp for balancing a cylindrical lithium ion battery pack, which has the advantages of simple structure, simplicity and convenience in operation, reliability in connection with a battery cell, and capability of greatly improving the balancing efficiency and safety of the battery cell.
In order to achieve the purpose, the utility model provides a clamp for balancing a cylindrical lithium ion battery pack, which is characterized by comprising a main frame, a movable rod, a compression bolt, a spring, an upper pole column and a lower pole column, wherein the movable rod is connected with the main frame through a rotating shaft; the utility model discloses a pole setting device, including main frame, movable rod, spring, pressure bolt, last utmost point post, lower utmost point post, upper end post, lower utmost point post sets up relatively, the main frame with set up between the movable rod the spring with it fixes to compress tightly the bolt, the pressure bolt adjustment the main frame with interval between the movable rod, it is in to go up utmost point post setting on the movable rod, lower utmost point post sets up on the main frame, go up utmost point post with lower utmost point post sets up relatively.
Preferably, the compression bolt penetrates through the main frame and is in contact connection with the movable rod.
Preferably, the main frame includes first horizontal frame, the horizontal frame of second and mullion, first horizontal frame the horizontal frame of second with the mullion is on the coplanar, the mullion with first horizontal frame the horizontal frame of second sets up perpendicularly, first horizontal frame the horizontal frame parallel arrangement of second just is located the mullion is same one side.
Preferably, one end of the movable rod is hinged to the vertical frame through a rotating shaft, the other end of the movable rod is provided with the upper pole, the upper pole protrudes out of the lower surface of the movable rod, and the upper pole is detachably connected with the movable rod.
Preferably, the lower pole is arranged on the second transverse frame, the lower pole protrudes out of the upper surface of the second transverse frame, and the lower pole is detachably connected with the second transverse frame.
Preferably, the first transverse frame is provided with a screw hole, and the screw hole is matched with the thread of the compression bolt.
Preferably, the spring is arranged in parallel with the hold-down bolt;
or the spring is sleeved on the compression bolt.
Preferably, go up utmost point post, lower utmost point post connects upper conductor, lower wire respectively, go up utmost point post, lower utmost point post passes through go up the wire, the lower wire links to each other with external balancing equipment.
Preferably, the upper pole and the lower pole are cylindrical, and the cross section diameters of the upper pole and the lower pole are 0.5-1 cm.
Preferably, the upper pole and the lower pole are integrally cylindrical; the opposite surfaces of the upper pole and the lower pole are respectively provided with a circular truncated cone.
Preferably, the main frame and the movable rod are made of epoxy boards, bakelite or organic glass.
Preferably, the upper pole and the lower pole are made of stainless steel or copper.
The utility model has the beneficial effects that: the structure is simple, the lower pole column is contacted with the negative electrode of the battery cell to be balanced, the distance between the main frame and the movable rod is adjusted by adjusting the compression bolt, and further the distance between the upper pole column and the lower pole column is adjusted, so that the upper pole column is in close contact with the positive electrode of the battery cell to be balanced, the clamp can be tightly connected with the positive electrode and the negative electrode of the battery, and the clamp is convenient to operate; the cross section area of the pole is large, so that large current balance can be supported, and the balance speed is improved; the upper and lower pole posts are not easy to generate short circuit, are reliably connected with the battery cell, and increase the operation safety.
Drawings
Fig. 1 is a schematic structural diagram of a fixture for equalizing a cylindrical lithium ion battery pack according to embodiment 1 of the present invention;
fig. 2 is a side view of a cylindrical lithium ion battery pack equalization fixture provided in embodiment 1 of the present invention;
fig. 3 is a schematic structural diagram of a fixture for equalizing a cylindrical lithium ion battery pack according to embodiment 2 of the present invention;
fig. 4 is a schematic structural diagram of a fixture for equalizing a cylindrical lithium ion battery pack according to embodiment 3 of the present invention;
fig. 5 is a schematic diagram of a cylindrical lithium ion battery pack equalization clamp according to embodiment 6 of the present invention, in which a spring is sleeved on a hold-down bolt;
fig. 6 is a schematic structural diagram of an upper terminal or a lower terminal of the fixture for equalizing a cylindrical lithium ion battery pack according to embodiment 9 of the present invention;
fig. 7 is a schematic view of an installation structure of a mullion and a length adjustment structure of a fixture for equalizing a cylindrical lithium ion battery pack provided in embodiment 10 of the present invention;
in the drawings: 1. the structure comprises compression bolts, 2 parts of springs, 3 parts of upper conducting wires, 4 parts of upper poles, 5 parts of movable rods, 6 parts of rotating shafts, 7 parts of main frames, 7-1 parts of first transverse frames, 7-2 parts of second transverse frames, 7-3 parts of vertical frames, 7-3-1 parts of vertical frames, 7-3-2 parts of vertical frame second parts, 8 parts of lower poles, 9 parts of lower conducting wires, 10 parts of triangular plates, 11 parts of circular truncated cones, 12 parts of length adjusting structures, 12-1 parts of inner tubes, 12-2 parts of outer tubes, 12-3 parts of bolts.
Detailed Description
The following describes the equalizing fixture for a cylindrical lithium ion battery pack in detail with reference to the accompanying drawings.
The clamp for balancing the cylindrical lithium ion battery pack comprises a main frame 7, a movable rod 5, compression bolts 12-31, a spring 2, an upper pole 4 and a lower pole 8, wherein the movable rod 5 is connected with the main frame 7 through a rotating shaft 6; a spring 2 and a pressing bolt 12-31 are arranged between the main frame 7 and the movable rod 5 for fixing, the pressing bolt 12-31 adjusts the distance between the main frame 7 and the movable rod 5, the upper pole 4 is arranged on the movable rod 5, the lower pole 8 is arranged on the main frame 7, and the upper pole 4 and the lower pole 8 are arranged oppositely. The movable rod 55 is connected with a main frame 77 through a rotating shaft 66, a spring 22 and compression bolts 12-31 are arranged between the main frame 77 and the movable rod 55, an upper pole 44 and a lower pole 88 are respectively arranged on the movable rod 55 and the main frame 77, and the upper pole 4 and the lower pole 8 are respectively connected with external balancing equipment through an upper lead 3 and an upper lead 3, so that electromagnetic balance is realized.
The compression bolts 12-31 penetrate through the main frame 7 and are in contact connection with the movable rod 5.
The main frame 7 comprises a first transverse frame 7-1, a second transverse frame 7-2 and a vertical frame 7-3, the first transverse frame 7-1, the second transverse frame 7-2 and the vertical frame 7-3 are on the same plane, the vertical frame 7-3 is perpendicular to the first transverse frame 7-1 and the second transverse frame 7-2, and the first transverse frame 7-1 and the second transverse frame 7-2 are arranged in parallel and are located on the same side of the vertical frame 7-3.
One end of the movable rod 5 is hinged with the vertical frame 7-3 through the rotating shaft 6, the other end of the movable rod 5 is provided with an upper pole 4, the upper pole 4 protrudes out of the lower surface of the movable rod 5, and the upper pole 4 is detachably connected with the movable rod 5.
The lower pole 8 is arranged on the second transverse frame 7-2, the lower pole 8 protrudes out of the upper surface of the second transverse frame 7-2, and the lower pole 8 is detachably connected with the second transverse frame 7-2.
The first transverse frame 7-1 is provided with a screw hole which is matched with the screw thread of the compression bolt 12-31.
The spring 2 is arranged in parallel with the pressing bolts 12-31;
or the spring 2 is sleeved on the pressing bolts 12-31.
The upper pole 4 and the lower pole 8 are respectively connected with the upper lead 3 and the lower lead 9, and the upper pole 4 and the lower pole 8 are connected with external balancing equipment through the upper lead 3 and the lower lead 9.
The upper pole 4 and the lower pole 8 are cylindrical, and the cross section diameters of the upper pole 4 and the lower pole 8 are 0.5-1 cm.
The upper pole 4 and the lower pole 8 are cylindrical as a whole; the opposite surfaces of the upper pole 4 and the lower pole 8 are respectively provided with a circular truncated cone 11.
The main frame 7 and the movable rod 5 adopt epoxy boards, bakelite or organic glass.
The upper pole 4 and the lower pole 8 are made of stainless steel or copper.
Use example: the use process of the cylindrical lithium ion battery equalizing clamp of the utility model is as follows: firstly, the lower pole 8 of the clamp is contacted with the negative electrode of the cell to be balanced, the compression bolt 12-3 is adjusted, and the movable rod 5 moves downwards until the upper pole 4 is in close contact with the positive electrode of the cell to be balanced, so that the connection between the cell to be balanced and external balancing equipment is realized. After the balance is finished, the hold-down bolt 12-3 is adjusted reversely, and the movable rod 5 moves upwards under the action of the spring 2, so that the upper pole 4 is separated from the positive electrode of the battery cell.
Example 1
Fig. 1 is a schematic structural diagram of a fixture for equalizing a cylindrical lithium ion battery pack according to embodiment 1 of the present invention;
fig. 2 is a side view of a cylindrical lithium ion battery pack equalization fixture provided in embodiment 1 of the present invention;
the clamp for balancing the cylindrical lithium ion battery pack comprises a main frame 7, a movable rod 5, compression bolts 12-31, a spring 2, an upper pole 4 and a lower pole 8, wherein the movable rod 5 is connected with the main frame 7 through a rotating shaft 6; a spring 2 and a pressing bolt 12-31 are arranged between the main frame 7 and the movable rod 5 for fixing, the pressing bolt 12-31 adjusts the distance between the main frame 7 and the movable rod 5, the upper pole 4 is arranged on the movable rod 5, the lower pole 8 is arranged on the main frame 7, and the upper pole 4 and the lower pole 8 are arranged oppositely.
In this embodiment, the lower terminal 8 contacts with the negative electrode of the battery cell to be balanced, the distance between the main frame 7 and the movable rod 5 is adjusted by adjusting the pressing bolts 12 to 31, and then the distance between the upper terminal 4 and the lower terminal 8 is adjusted, so that the upper terminal 4 is in close contact with the positive electrode of the battery cell to be balanced, and the clamp can be in close connection with the positive electrode and the negative electrode of the battery, and the upper terminal 4 and the lower terminal 8 are connected with external balancing equipment through the upper lead 3 and the lower lead 9 for balancing. The whole structure is simple, and the clamp is convenient to operate.
Example 2
The technical scheme of the embodiment 1 is as follows:
fig. 3 is a schematic structural diagram of a fixture for equalizing a cylindrical lithium ion battery pack according to embodiment 2 of the present invention;
the main frame 7 comprises a first transverse frame 7-1, a second transverse frame 7-2 and a vertical frame 7-3, the first transverse frame 7-1, the second transverse frame 7-2 and the vertical frame 7-3 are on the same plane, the vertical frame 7-3 is perpendicular to the first transverse frame 7-1 and the second transverse frame 7-2, the first transverse frame 7-1 and the second transverse frame 7-2 are arranged in parallel and are located on the same side of the vertical frame 7-3, and the main frame 7 is simple in structure and easy to purchase and implement.
Example 3
Fig. 4 is a schematic structural diagram of a fixture for equalizing a cylindrical lithium ion battery pack according to embodiment 3 of the present invention;
besides the technical scheme of the embodiment 1 or 2, the method also comprises the following technical scheme:
a triangular plate 10 is arranged at the vertical position of the vertical frame 7-3 and the first transverse frame 7-1 and the second transverse frame 7-2, so that the main frame 7 is prevented from being stressed and deformed or damaged for a long time after the compression bolts 12-31 and the spring 2 exert force. Other products that enable the mullion 7-3 to form a stable triangular structure with the first horizontal mullion 7-1 and the mullion 7-3 to form a stable triangular structure with the second horizontal mullion 7-2 can also be used.
Example 4
In addition to the technical solutions of any of the embodiments 1 to 3, the following technical solutions are also included:
one end of the movable rod 5 is hinged with the vertical frame 7-3 through the rotating shaft 6, the other end of the movable rod 5 is provided with an upper pole 4, the upper pole 4 protrudes out of the lower surface of the movable rod 5, and the upper pole 4 is detachably connected with the movable rod 5.
The lower pole 8 is arranged on the second transverse frame 7-2, the lower pole 8 protrudes out of the upper surface of the second transverse frame 7-2, and the lower pole 8 is detachably connected with the second transverse frame 7-2.
The upper pole post 4 is opposite to the lower pole post 8.
Go up utmost point post 4 and can dismantle with the movable rod 5 and be connected, lower utmost point post 8 can dismantle with the horizontal frame 7-2 of second and be connected, can dismantle the connection and can adopt threaded connection structure also can adopt other connection structure, go up utmost point post 4, lower utmost point post 8 adopts can dismantle connected mode, damage at last utmost point post 4 and lower utmost point post 8 can conveniently in time with trading, improve work efficiency, avoid wholly with trading anchor clamps, reduce cost. Meanwhile, the upper pole 4 and the lower pole 8 with different specifications can be replaced corresponding to different batteries, and the application range is enlarged.
Example 5
Besides the technical solutions of the embodiment 1 or 2, the following technical solutions are also included:
the first transverse frame 7-1 is provided with a screw hole which is matched with the screw thread of the compression bolt 12-31.
The screw hole is arranged in the front 1/3 part of the first transverse frame 7-1 in the length direction, the compression bolt 12-31 is arranged perpendicular to the first transverse frame 7-1, force can be conveniently applied to the compression bolt 12-31, the tail end of the compression bolt 12-31 is in contact connection with the movable rod 5, the compression bolt 12-31 is ensured to be stressed to rotate to push the movable rod 5 to rotate downwards, the upper pole 4 below the movable rod 5 is driven to move downwards, the upper pole 4 is in close contact with the positive electrode of the battery cell to be balanced, and the clamp can be in close connection with the positive electrode and the negative electrode of the battery.
Example 6
Fig. 5 is a schematic diagram of a cylindrical lithium ion battery pack equalization clamp according to embodiment 6 of the present invention, in which a spring is sleeved on a hold-down bolt;
in addition to the technical solutions of any of embodiments 1 to 5, the following technical solutions are also included:
the spring 2 is arranged in parallel with the pressing bolts 12-31; or the spring 2 is sleeved on the pressing bolts 12-31.
When the compression bolts 12-31 drive the movable rod 5 to move, the restoring force between the movable rod 5 and the first transverse frame 7-1 is ensured, and the stress balance is ensured.
After the balance is finished, the hold-down bolt 12-3 is adjusted reversely, and the movable rod 5 is moved upwards under the action of the spring 2, so that the upper pole 4 is separated from the positive pole of the battery cell.
Example 7
In addition to the technical solutions of any of embodiments 1 to 6, the following technical solutions are also included:
the upper pole 4 and the lower pole 8 are respectively connected with the upper lead 3 and the lower lead 9, and the upper pole 4 and the lower pole 8 are connected with external balancing equipment through the upper lead 3 and the lower lead 9.
The upper pole 4 and the lower pole 8 are cylindrical, and the cross section diameters of the upper pole 4 and the lower pole 8 are 0.5-1 cm.
The cross section area of the pole is large, so that large current balance can be supported, and the balance speed is improved; go up utmost point post 4 and utmost point post 8 are difficult to take place the short circuit down, are connected reliably with electric core, increase the operational safety nature.
Example 8
Fig. 6 is a schematic structural diagram of an upper terminal or a lower terminal of the fixture for equalizing a cylindrical lithium ion battery pack according to embodiment 9 of the present invention;
in addition to the technical solutions of any of embodiments 1 to 7, the following technical solutions are also included:
the upper pole 4 and the lower pole 8 are cylindrical as a whole; the opposite surfaces of the upper pole 4 and the lower pole 8 are respectively provided with a circular truncated cone 11. The circular truncated cone 11 is arranged to increase the contact area with the anode and the cathode of the battery, so that the clamping is more stable, the cross section area of the pole is large, the large current balance can be supported, and the balance speed is improved; the upper and lower pole posts 8 are not easy to generate short circuit, are reliably connected with the battery cell, and increase the operation safety.
Example 9
In addition to the technical solutions of any of embodiments 1 to 8, the following technical solutions are also included:
the main frame 7 and the movable rod 5 are made of epoxy boards, bakelite or organic glass, have good insulating property and are easy to purchase and implement.
The upper pole 4 and the lower pole 8 are made of stainless steel or copper, have good conductivity and are easy to purchase and implement.
Example 10
Fig. 7 is a schematic view of an installation structure of a mullion and a length adjustment structure of a fixture for equalizing a cylindrical lithium ion battery pack according to embodiment 10 of the present invention;
in addition to the technical solutions of any of embodiments 1 to 7, the following technical solutions are also included:
the length adjusting structures 12 are arranged on the first transverse frame 7-1, the second transverse frame 7-2 and the vertical frame 7-3 of the main frame 7, so that the lengths of the first transverse frame 7-1, the second transverse frame 7-2 and the vertical frame 7-3 can be adapted to batteries with different specifications, and the application range is expanded.
The mullion 7-3 includes a mullion first portion 7-3-1 and a mullion second portion 7-3-2, and the mullion first portion 7-3-1 and the mullion second portion 7-3-2 are connected by a length adjustment structure 12. The first transverse frame 7-1 and the second transverse frame 7-2 are similar.
The length adjusting structure 12 can be a sleeve structure, and comprises an inner pipe 12-1 and an outer pipe 12-2 which are sleeved with each other, and a bolt 12-3, wherein the outer pipe 12-2 is provided with a screw hole, and the sleeved length of the inner pipe 12-1 and the outer pipe 12-2 is adjusted through the bolt 12-3, so that the length is adjusted. The length adjustment structure 12 may also be used in other existing ways of adjusting the length.
Compared with the prior art, the balancing fixture has a simple structure, the lower pole 8 is contacted with the negative electrode of the battery cell to be balanced, the distance between the main frame 7 and the movable rod 5 is adjusted by adjusting the compression bolts 12-3, and further the distance between the upper pole 4 and the lower pole 8 is adjusted, so that the upper pole 4 is in close contact with the positive electrode of the battery cell to be balanced, the tight connection between the fixture and the positive electrode and the negative electrode of the battery can be realized, and the fixture is convenient to operate; the cross section area of the pole is large, so that large current balance can be supported, and the balance speed is improved; the upper and lower pole posts 8 are not easy to generate short circuit, are reliably connected with the battery cell, and increase the operation safety.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the present invention, and all such changes or substitutions are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The clamp for balancing the cylindrical lithium ion battery pack is characterized by comprising a main frame, a movable rod, a compression bolt, a spring, an upper pole and a lower pole, wherein the movable rod is connected with the main frame through a rotating shaft; the utility model discloses a pole setting device, including main frame, movable rod, spring, pressure bolt, last utmost point post, lower utmost point post, upper end post, lower utmost point post sets up relatively, the main frame with set up between the movable rod the spring with it fixes to compress tightly the bolt, the pressure bolt adjustment the main frame with interval between the movable rod, it is in to go up utmost point post setting on the movable rod, lower utmost point post sets up on the main frame, go up utmost point post with lower utmost point post sets up relatively.
2. The cylindrical lithium ion battery pack equalization clamp of claim 1, wherein the hold-down bolt is connected to the movable rod through a main frame.
3. The clamp for equalizing the cylindrical lithium ion battery pack according to claim 2, wherein the main frame comprises a first transverse frame, a second transverse frame and a vertical frame, the first transverse frame, the second transverse frame and the vertical frame are on the same plane, the vertical frame is perpendicular to the first transverse frame and the second transverse frame, and the first transverse frame and the second transverse frame are parallel and located on the same side of the vertical frame.
4. The clamp for equalizing the cylindrical lithium ion battery pack according to claim 3, wherein one end of the movable rod is hinged to the mullion through a rotating shaft, the other end of the movable rod is provided with the upper pole, the upper pole protrudes out of the lower surface of the movable rod, and the upper pole is detachably connected with the movable rod.
5. The clamp for equalizing the cylindrical lithium ion battery pack according to claim 4, wherein the lower terminal is disposed on the second transverse frame, the lower terminal protrudes out of the upper surface of the second transverse frame, and the lower terminal is detachably connected to the second transverse frame.
6. The cylindrical lithium ion battery pack equalization fixture of claim 4, wherein the first cross frame is provided with a screw hole, and the screw hole is matched with the thread of the compression bolt.
7. The cylindrical lithium ion battery pack equalization clamp of claim 1, wherein the spring is disposed parallel to the hold-down bolt;
or the spring is sleeved on the compression bolt.
8. The cylindrical lithium ion battery pack balancing fixture of claim 1 or 2, wherein the upper terminal post and the lower terminal post are respectively connected with an upper lead and a lower lead, and the upper terminal post and the lower terminal post are connected with external balancing equipment through the upper lead and the lower lead.
9. The cylindrical lithium ion battery pack equalization fixture of claim 1, wherein the upper post and the lower post are cylindrical in shape, and the cross-sectional diameter of the upper post and the lower post is 0.5-1 cm.
10. The cylindrical lithium ion battery pack equalization jig of claim 1, wherein the upper pole post and the lower pole post are cylindrical as a whole; and the opposite surfaces of the upper pole and the lower pole are respectively provided with a circular truncated cone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121702658.9U CN217035749U (en) | 2021-07-26 | 2021-07-26 | Clamp for balancing cylindrical lithium ion battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121702658.9U CN217035749U (en) | 2021-07-26 | 2021-07-26 | Clamp for balancing cylindrical lithium ion battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217035749U true CN217035749U (en) | 2022-07-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121702658.9U Active CN217035749U (en) | 2021-07-26 | 2021-07-26 | Clamp for balancing cylindrical lithium ion battery pack |
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| Country | Link |
|---|---|
| CN (1) | CN217035749U (en) |
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2021
- 2021-07-26 CN CN202121702658.9U patent/CN217035749U/en active Active
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