CN219625547U - High-current rapid test fixture for cylindrical battery - Google Patents

Abstract

The utility model discloses a high-current rapid test fixture for a cylindrical battery, which comprises a base, an upper mounting bar, a lower mounting bar, a battery positioning bar, a fixed terminal, a spring terminal and a busbar plate. The positions of the upper mounting strip and the lower mounting strip can be quickly adjusted, and the testing requirements of cylindrical batteries with different specifications and types can be met; the design of the traditional leading-out piece is replaced by adopting the fixed terminal and the spring terminal, and the connection on a circuit is omitted, so that the connection resistance value of heavy current discharge is reduced, the reliability of the battery in connection is ensured, the quick clamping of the battery can be tested, and the operation safety is improved. The base is of a hollow structure, so that the layout of the test line is facilitated, the fixed terminals and the spring terminals are connected, the operation time is saved, and the test site is also facilitated to be tidy and orderly; in addition, the busbar board can be matched, the multiplying power test can be carried out, the busbar board can be detached for common test, the clamp function is fully utilized, a large amount of disassembly work brought by the replacement test purpose is avoided, and the operation is simplified.

Description

High-current rapid test fixture for cylindrical battery

Technical Field

The utility model relates to the technical field of batteries, in particular to a high-current rapid test fixture for a cylindrical battery.

Background

The zinc-based battery has better high-current discharge capability, and in the current high-capacity battery rate discharge test work, the maximum test current can reach hundreds of amperes. The test wire is used for connecting the tail end of the battery, and the mode of wire nose crimping is generally adopted, so that the contact area of the test wire and the battery after connection is large, and the safety problem and the heating problem when the contact point is excessively high current are reduced.

Thus, the current method of operation for the rate discharge test of a cylindrical battery is as follows:

1. and the metal leading-out sheets 2 are welded at the positive and negative ends of the battery 1. Because the positive and negative poles of the zinc-based cylindrical battery are not threaded for the wire nose of the test wire to be directly connected, and the positive and negative poles of the zinc-based cylindrical battery are in a whole metal plane, the lead-out sheet needs to be welded and perforated for connecting the wire nose of the test wire. See figure 1 of the specification for specific structure.

2. And (3) carrying out parallel operation on the channels to be tested of the testing equipment, and then connecting the parallel testing wires to the metal sheets welded on the corresponding anode and cathode of the battery.

3. The test is initiated.

The above operation method has the following problems:

(1) The operation is relatively troublesome, the channel test wire is required to be connected in parallel by bolts before the test is started, then the leading-out sheet is welded to the anode and the cathode of the battery, the leading-out sheet is perforated, the leading-out sheet is connected with the parallel test wire, the operation steps are more and complex, the preparation time is long, and the efficiency is lower.

(2) The potential safety hazard exists, the positive electrode and the negative electrode of the battery are welded with the leading-out sheet, the leading-out sheet is in threaded connection with the test wire, the overcurrent heating condition is increased, and meanwhile, accidents can be caused due to poor welding and loose threaded connection.

(3) The harness is low in multi-space utilization, the test wires need to be connected outside, the test wires need to be of a certain length, and after a plurality of channel test wires are connected together, the wires are directly crossed and disordered, so that the test rack is full of wires. Therefore, no space is available for placing other batteries, which is unfavorable for safe production and space utilization.

Disclosure of Invention

Aiming at the defects, the utility model aims to provide the cylindrical battery high-current rapid test fixture which is reasonable in structural design, simple to operate, safe to use, beneficial to wire harness layout and capable of improving space utilization rate.

In order to achieve the above purpose, the technical scheme provided by the utility model is as follows:

the utility model provides a quick test fixture of cylinder battery heavy current, its includes the base, goes up the installation strip, installs strip down, battery location strip, fixed terminal and spring terminal, the base is hollow structure, the bilateral symmetry of base is equipped with a plurality of regulation holes of arranging in proper order from last to down, go up the installation strip with the both ends symmetry of installation strip down be equipped with the mounting hole of regulation hole looks adaptation to pass the mounting hole through the screw and carry out locking location with the regulation hole of relevant position, the battery location strip corresponds the position setting between installation strip and the installation strip down on the base, a plurality of fixed terminal interval arrangement sets up on the installation strip down, and align rather than corresponding fixed terminal.

As a preferable scheme of the utility model, two ends of the upper mounting bar are symmetrically bent to one side to form an upper mounting part, the mounting hole is positioned on the upper mounting part, an upper mounting groove extending along the long side direction of the upper mounting bar is arranged on the upper surface of the upper mounting bar, an upper hole for mounting the fixed terminal is arranged on the bottom surface of the upper mounting groove, and an upper wire slot is arranged on the wall of the upper mounting groove corresponding to one side of the upper hole. The both ends symmetry of installing strip down is to the one side bending formation lower installation department, the mounting hole is located on the lower installation department, the lower surface of installing strip is equipped with the lower mounting groove that extends along its long limit direction down, and the bottom surface of this lower mounting groove is equipped with and is used for installing spring terminal's lower hole corresponds down hole one side is located be equipped with down the wire casing on the cell wall of lower mounting groove, do benefit to the pencil overall arrangement and lead to the hollow structure of base.

As a preferable scheme of the utility model, the battery positioning strip is provided with a plurality of arc-shaped concave positions which are sequentially arranged along the long side direction of the battery positioning strip, the arc-shaped concave positions are matched with the shape of the cylindrical battery, the placement stability of the cylindrical battery is improved, and the test safety is improved.

As a preferred scheme of the utility model, the utility model further comprises a busbar plate, wherein a plurality of connecting holes which are sequentially arranged along the long side direction of the busbar plate and are matched with the fixed terminals or the spring terminals are arranged on the busbar plate. The busbar plate can be conveniently connected in parallel, the multiplying power test can be carried out, the busbar plate can be detached for common test, the clamp function is fully utilized, and a large amount of disassembly work brought by the replacement test purpose is avoided.

The beneficial effects of the utility model are as follows: the utility model has reasonable structural design, the positions of the upper and lower mounting bars can be quickly adjusted, and the utility model can be compatible with various cylindrical battery models and meets the test requirements of cylindrical batteries with different specifications and models; the design of adopting fixed terminal and spring terminal to replace traditional drawing out piece omits a junction for the spring terminal of permanent connection test line is directly connected battery positive, negative pole, and the connection on the circuit that omits does benefit to the connection resistance that reduces heavy current discharge, has not only guaranteed the reliability of battery on the connection, can also realize testing quick clamping, improves operation security. The base is of a hollow structure, so that the layout of the test line is facilitated, the fixed terminals and the spring terminals are connected, the preparation efficiency before the battery test is greatly improved, the operation time is saved, and the test site is also facilitated to be neat and orderly; in addition, the busbar plate can be matched, the multiplying power test can be carried out, the busbar plate can be detached for ordinary test, the clamp function is fully utilized, a large amount of disassembly work brought by the replacement test purpose is avoided, and the operation is simple and convenient.

The utility model will be further described with reference to the drawings and examples.

Drawings

Fig. 1 is a schematic view of the structure of a conventional cylindrical battery welding tab.

Fig. 2 is a schematic perspective view of the present utility model.

Fig. 3 is an exploded view of the present utility model shown in fig. 1.

Fig. 4 is an exploded view of the present utility model shown in fig. 2.

Fig. 5 is a schematic view of the structure of the upper mounting bar of the present utility model.

Fig. 6 is a schematic view of the structure of the lower mounting bar of the present utility model.

Fig. 7 is a schematic view of the structure of the utility model mounted on a test cabinet.

Detailed Description

Referring to fig. 2 to 6, the present embodiment provides a large current rapid test fixture for a cylindrical battery, which includes a base 1, an upper mounting bar 2, a lower mounting bar 3, a battery positioning bar 4, a fixing terminal 5, a spring terminal 6, and a bus bar plate 7.

The base 1 is of a hollow structure, can be formed by stamping through sheet metal, is concave on the back to form a hollow structure 11, and is fixed with a cover plate 12 on the back through screws. When wiring is performed, the cover plate 12 is detached, and wiring harness layout and wiring operation can be performed.

The two sides of the base 1 are symmetrically provided with a plurality of adjusting holes 13 which are sequentially arranged from top to bottom, and the two ends of the upper mounting strip 2 and the lower mounting strip 3 are symmetrically provided with mounting holes which are matched with the adjusting holes 13. Specifically, the two ends of the upper mounting bar 2 are symmetrically bent to one side to form an upper mounting portion 24, the mounting hole is positioned on the upper mounting portion 24,

the upper surface of the upper mounting bar 2 is provided with an upper mounting groove 21 extending along the long side direction thereof, the bottom surface of the upper mounting groove 21 is provided with an upper hole 22 for mounting the fixed terminal 5, the fixed terminal 5 is mounted on the upper hole 22, and an upper wire groove 23 is arranged on the wall of the upper mounting groove 21 corresponding to one side of the upper hole 22. The harness is conveniently led to the hollow structure 11 of the base 1 by means of the upper wire chase 23.

The both ends symmetry of lower mounting bar 3 are to one side buckling and are formed lower installation department 33, the mounting hole is located on the lower installation department 33, the lower surface of lower mounting bar 3 is equipped with the lower mounting groove that extends along its long limit direction, and the bottom surface of this lower mounting groove is equipped with and is used for installing the lower hole 31 of spring terminal 6, spring terminal 6 is installed on lower hole 31, and corresponds with fixed terminal 5 one by one. Preferably, the fixed terminal 5 and the spring terminal 6 are provided with gold plating layers, so that the reliability of the battery in connection can be better ensured, and the quick clamping of the test can be realized. A lower wire slot 32 is provided on the wall of the lower mounting slot corresponding to the side of the lower hole 31. The harness is conveniently led to the hollow structure 11 of the base 1 by the lower wire trough 32.

In this embodiment, the mounting hole on the upper mounting portion 24 is circular, and the mounting hole on the lower mounting portion 33 is elongated, so that the space between the upper mounting bar 2 and the lower mounting bar 3 can be flexibly adjusted, and after the space is adjusted, the space is locked and positioned by passing through the mounting hole and the adjusting hole 13 at the corresponding position through a screw.

The battery positioning strips 4 are arranged on the base 1 corresponding to the positions between the upper mounting strip 2 and the lower mounting strip 3, and preferably, the number of the battery positioning strips 4 is two, so that the positioning effect is better. The battery locating strip 4 is provided with a plurality of arc concave positions which are sequentially arranged along the long side direction of the battery locating strip, and the arc concave positions are matched with the shape of the cylindrical battery, so that the placement stability of the cylindrical battery is improved.

The busbar plate 7 is provided with a plurality of connecting holes which are sequentially arranged along the long side direction and are matched with the fixed terminals 5 or the spring terminals 6. The busbar plate 7 can be conveniently connected in parallel, so that the busbar plate 7 can be removed for testing, and then the busbar plate 7 can be conveniently tested, so that the clamp function is fully utilized, and a large amount of disassembly work brought by the replacement of the testing purpose is avoided.

In operation, referring to fig. 7, the storage rack 9 may be mounted on the test cabinet in advance, the storage rack 9 has an inclined operation surface, and the inclined angle of the inclined operation surface is preferably 30 degrees, so that the operation of personnel is convenient, and the inclined operation surface can shield the test line stored in the storage rack 9. The storage rack 9 can also adopt a multi-layer ladder inclined operation surface, so that a plurality of large-current rapid test fixtures for the cylindrical batteries are convenient to place and install.

The space position between the upper mounting bar 2 and the lower mounting bar 3 can be quickly adjusted according to the size of the cylindrical battery 8 with the specification and model to be tested, so that the cylindrical battery with various models is compatible, and the convenience of testing is greatly optimized; after the regulation is suitable, the cylindrical battery 8 is directly placed on the arc concave position of the battery positioning strip 4, the fixed terminal 5 and the spring terminal 6 are tightly pressed on the positive electrode and the negative electrode of the cylindrical battery 8 through the elasticity of the spring terminal 6, so that the design of a traditional leading-out sheet is replaced, one joint is omitted, the spring terminal 6 permanently connected with a test wire is directly connected with the positive electrode and the negative electrode of the cylindrical battery, the connection on the omitted circuit is beneficial to reducing the connection resistance value of heavy current discharge, the heavy current test efficiency of the cylindrical battery is improved, the reliability of the battery on connection is ensured, the quick clamping of the test can be realized, and the operation safety is improved. The binding posts of the fixed terminal 5 and the spring terminal 6 are connected with the test wire nose of the test cabinet, and one test channel corresponds to a pair of positive and negative poles.

If the channels are to be subjected to parallel operation, the bus bar plate 7 is arranged on the binding posts of the fixed terminal 5 and the spring terminal 6, so that the parallel operation of a plurality of channels can be completed, and the requirement of multiplying power test is met. And meanwhile, the bus bar plate 7 can be removed for common test, and the operation is simple and convenient.

Variations and modifications to the above would be obvious to persons skilled in the art to which the utility model pertains from the foregoing description and teachings. Therefore, the utility model is not limited to the specific embodiments disclosed and described above, but some modifications and changes of the utility model should be also included in the scope of the claims of the utility model. In addition, although specific terms are used in the present specification, these terms are used for convenience of description only and do not limit the present utility model in any way, and other jigs identical or similar thereto are used within the scope of the present utility model.

Claims (7)

1. The utility model provides a big electric current rapid test anchor clamps of cylinder battery, its characterized in that includes the base: the battery positioning strip is arranged on the base at intervals, a plurality of fixed terminals are arranged on the upper mounting strip at intervals, the lower mounting strip is arranged at intervals, and the fixed terminals corresponding to the upper mounting strip are aligned with the fixed terminals corresponding to the lower mounting strip.

2. The rapid testing fixture for large current of cylindrical battery according to claim 1, wherein two ends of the upper mounting bar are symmetrically bent to one side to form an upper mounting portion, the mounting hole is located on the upper mounting portion, an upper mounting groove extending along the long side direction of the upper mounting bar is formed in the upper surface of the upper mounting bar, an upper hole for mounting the fixing terminal is formed in the bottom surface of the upper mounting groove, and an upper wire slot is formed in the wall of the upper mounting groove corresponding to one side of the upper hole.

3. The rapid testing fixture for large current of cylindrical battery according to claim 1, wherein two ends of the lower mounting bar are symmetrically bent to one side to form a lower mounting portion, the mounting hole is located on the lower mounting portion, a lower mounting groove extending along the long side direction of the lower mounting bar is arranged on the lower surface of the lower mounting bar, a lower hole for mounting the spring terminal is arranged on the bottom surface of the lower mounting groove, and a lower wire groove is arranged on the wall of the lower mounting groove corresponding to one side of the lower hole.

4. A cylindrical battery high current rapid test fixture according to any one of claims 1 to 3, wherein said mounting hole is circular or elongated.

5. The fixture for rapidly testing high current of cylindrical batteries according to claim 1, wherein the battery positioning strip is provided with a plurality of arc-shaped concave positions which are sequentially arranged along the long side direction.

6. The fixture for rapidly testing high current of a cylindrical battery according to claim 1, further comprising a busbar plate, wherein a plurality of connecting holes are formed in the busbar plate and are sequentially arranged along the long side direction of the busbar plate and are matched with the fixed terminals or the spring terminals.

7. The fixture for rapid high-current testing of a cylindrical battery according to claim 1, wherein the fixed terminal and the spring terminal are provided with gold plating.