Thin tab clamping mechanism and thin tab testing tool

Abstract

The utility model discloses a thin tab clamping mechanism and a thin tab test tool, and the thin tab clamping mechanism comprises a pedestal, and also comprises a rapid clamp disposed on the pedestal, and a jaw of the rapid clamp is connected with an upper clamping block; the upper clamping block can be connected with a voltage line wiring terminal; and the lower clamping block is arranged on the base, is used for being matched with the upper clamping block to clamp a tab, and can be connected with a current line wiring terminal. After being connected with the upper clamping block through the quick clamp, the upper clamping block is matched with the lower clamping block to fix the pole lug through clamping action, and large pressure cannot be generated on the pole lug, so that the problem of deformation of the thin pole lug caused by repeated disassembly and assembly is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of tab connection test, more particularly to a thin tab clamping mechanism and thin tab test tool. BACKGROUND

[0002] With the development of the industry, higher requirements are put forward for the battery energy storage industry. With the rapid development of the energy storage market, the performance and safety of the battery are also concerned, therefore, the battery test is particularly important in the whole link, and whether the test can provide the most real performance of the battery is the most important.

[0003] Defects and deficiencies of the prior art:

[0004] 1. At present, the tabs of soft package batteries are generally thin, and when performing electrical performance tests, many use a method of connecting and locking between the tabs and the current line terminals of the charge-discharge machine by bolts and nuts after punching the tabs, which will generate a large pressure on the thin tabs, and the thin tabs will be deformed after being disassembled and assembled several times.

[0005] 2. The connection between the thin tabs and the current line terminals can only provide pressure by mutual extrusion of the bolts and nuts, and if the extrusion degree is not enough, the pressure generated is small, and the contact impedance between the gasket and the current line terminal is large. INVENTION CONTENTS

[0006] The technical problem to be solved by the utility model is to provide a thin tab clamping mechanism and thin tab test tool that solve the problems of small contact area and poor connection between the thin tabs and the current line terminals.

[0007] In order to solve the above technical problems, the utility model adopts the following technical scheme: a thin tab clamping mechanism, comprising a base, further comprising:

[0008] A quick clamp is arranged on the base and connected with an upper clamping block at the clamp opening.

[0009] The upper clamping block is connected with the voltage line terminal.

[0010] A lower clamping block is arranged on the base and used for clamping the tab in cooperation with the upper clamping block, and is connected with the current line terminal.

[0011] Further, the quick clamp is arranged in an inclined manner towards the position of the lower clamping block.

[0012] Further, the upper clamping block comprises a base and a voltage collection piece arranged in the base, and one end of the voltage collection piece extends out of the base.

[0013] Further, the upper clamping block further comprises a pressing block arranged in the base, and the pressing block is connected with the voltage collecting sheet.

[0014] Further, the pressing block is connected with the base through a bolt, and a spring is further arranged between the pressing block and the base.

[0015] Further, the lower clamping block comprises a clamping part matched with the pressing block and a connecting part connected with the current line terminal.

[0016] Further, the clamping surface of the pressing block and the clamping part are both in a tooth shape.

[0017] Further, the pressing block and the clamping part can wrap the tab when matched.

[0018] A thin tab testing tool comprises a bottom plate, and further comprises two thin tab clamping mechanisms arranged on the bottom plate, two current line terminal assemblies respectively connected with the two thin tab clamping mechanisms, and two voltage line terminal assemblies respectively connected with the thin tab clamping mechanisms.

[0019] Further, the distance between the two thin tab clamping mechanisms is adjustable.

[0020] The beneficial effects of the utility model are embodied in:

[0021] 1. The upper clamping block is connected with the lower clamping block through the quick clamp, and the thin tab is fixed through the clamping action, so that the thin tab is not subjected to large pressure, and the problem of deformation caused by multiple disassembly and assembly of the thin tab is avoided.

[0022] 2. The quick clamp is arranged in an inclined manner, so that the quick clamp is provided with additional pressing force, the upper clamping block and the lower clamping block firmly clamp the tab, and the tab is not loose.

[0023] 3. The spring is arranged between the pressing block and the base, so that a part of pressure is additionally increased, and the thin tab with different thicknesses can be matched, and the utility model has wide applicability.

[0024] 4. The pressing block and the lower clamping block are designed in a tooth shape, so that the pressure is increased under the condition of the same force, and the contact effect with the tab is better.

[0025] 5. The distance between the two thin tab clamping mechanisms is adjustable, so that the battery with different sizes can be matched. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a structural schematic view of the thin tab clamping mechanism of the utility model;

[0027] Figure 2It is the upper clamping block structure schematic diagram of the utility model;

[0028] Figure 3 It is the upper clamping block partial structure schematic diagram of the utility model;

[0029] Figure 4 It is the thin tab test tool structure diagram schematic diagram of the utility model;

[0030] Figure 5 It is the bottom plate structure schematic diagram of the utility model.

[0031] The marks of components in the drawing are: 1, base; 2, quick clamp; 201, cylindrical rod; 202, saddle-shaped fixing part; 203, fixed bolt; 204, L-shaped fixing part; 205, insulating handle; 206, connecting part; 207, wrench; 3, upper clamping block; 301, base; 3011, first through slot; 3012, second through slot; 3013, recess; 302, voltage acquisition sheet; 303, pressing block; 3031, current pressing block; 3032, voltage pressing block; 304, spring; 4, lower clamping block; 401, clamping part; 402, connecting part; 5, bottom plate; 501, strip-shaped slot; 6, current line terminal assembly; 7, voltage line terminal assembly; 8, support base; 9, fixed plate. DETAILED DESCRIPTION

[0032] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. The embodiments in the application and the features in the embodiments can be combined with each other without conflict. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0033] Referring to Figure 1 .

[0034] The thin tab clamping mechanism of the utility model, including base 1, still include:

[0035] Quick clamp 2 is arranged on the base 1, and the upper clamping block 3 is connected at the jaw;

[0036] The upper clamping block 3 can be connected with the voltage line terminal;

[0037] The lower clamp block 4 is arranged on the base 1 and used to clamp the tab together with the upper clamp block 3 and connected with the current line terminal. In this way, the upper clamp block 3 is connected with the quick clamp 2, and the lower clamp block 4 is clamped together through the clamping action to fix the tab, without generating large pressure on the thin tab, thereby avoiding the problem of deformation of the thin tab caused by multiple disassembly and assembly.

[0038] Specifically, the quick clamp 2 is implemented in the following structure:

[0039] The quick clamp 2 includes a cylindrical rod 201, a saddle-shaped fixing member 202, a fixing bolt 203, an L-shaped fixing member 204, an insulating handle 205, a connecting member 206, and two wrenches 207. The two wrenches 207 are inserted into the insulating handle 205 side by side to form a wrench combination. The upper circular hole of the saddle-shaped fixing member 202 and the wrench combination are connected through a rivet member. The lower circular hole of the saddle-shaped fixing member 202 and the circular hole of the higher side of the L-shaped fixing member 204 are connected through a rivet member. Finally, the circular holes of the upper wrench combination and the L-shaped fixing member 204 are connected through a rivet member respectively by the circular hole of the connecting member 206. The cylindrical rod 201 passes through the saddle-shaped fixing member 202, and the fixing bolt 203 is screwed into the cylindrical rod 201. The cylindrical rod 201 is connected with the upper clamp block 3. It should be noted that the quick clamp 2 can also use other models of clamps with the same function in the prior art.

[0040] Specifically, the upper clamp block 3 and the lower clamp block 4 are made of red copper material and are gold-plated, having good conductivity and reducing contact impedance.

[0041] In an embodiment, as shown in Figure 1 , the quick clamp 2 is arranged in an inclined manner towards the position of the lower clamp block 4. In this way, additional compression force is provided for the quick clamp 2, ensuring that the upper clamp block 3 and the lower clamp block 4 firmly clamp the tab and the tab does not loosen.

[0042] Specifically, the base 1 is provided with a wedge-shaped boss, the thinner side of the wedge-shaped boss faces the lower clamp block 4, and the wedge-shaped boss is fixed with the quick clamp 2 through a screw.

[0043] In an embodiment, as shown in Figure 2 , the upper clamp block 3 includes a base 301 and a voltage collection piece 302 arranged in the base 301, and one end of the voltage collection piece 302 protrudes out of the base 301. In this way, the voltage collection piece 302 protrudes from the base 301, which is convenient for voltage testing connection.

[0044] Specifically, the base 301 is provided with a first through slot 3011 for the voltage collection piece 302 to pass through.

[0045] In an embodiment, as shown in Figure 2The upper clamp block 3 further comprises a pressing block 303 arranged in the base 301, and the pressing block 303 is connected with the voltage collecting sheet 302. In this way, the voltage collecting sheet 302 can be connected with the pressing block 303 first, and then the pressing block 303 is connected with the base 301, so that the operation is convenient;

[0046] Specifically, the pressing block 303 comprises a current pressing block 3031 and a voltage pressing block 3032, and the current pressing block 3031 and the voltage pressing block 3032 are both provided with a second through slot 3012 for the voltage collecting sheet 302 to pass through, the voltage collecting sheet 302 is embedded in the second through slot 3012 of the current pressing block 3031 and the voltage pressing block 3032 and connected with the voltage pressing block 3032, and the base 301 is provided with two grooves 3013, and the current pressing block 3031 and the voltage pressing block 3032 are respectively arranged in the two grooves 3013.

[0047] In an embodiment, referring to Figure 3 The pressing block 303 is connected with the base 301 through a bolt, and a spring 304 is further arranged between the pressing block 303 and the base 301. In this way, the spring 304 is arranged, which can additionally increase a part of pressure and can be adapted to thin tab of different thicknesses, so that the applicability is wider. Specifically, the spring 304 is arranged outside the bolt.

[0048] In an embodiment, referring to Figure 1 The lower clamp block 4 comprises a clamping part 401 matched with the pressing block 303 and a connecting part 402 connected with the current line terminal. In this way, the connecting part 402 is protruded from the base 301, so that the current test connection is facilitated.

[0049] In an embodiment, referring to Figure 2 The pressing block 303 and the clamping surface of the clamping part 401 are both tooth-shaped. In this way, the pressure is increased under the condition of applying the same force, so that the contact effect of the tab is better.

[0050] In an embodiment, referring to Figure 4 The pressing block 303 and the clamping part 401 can wrap the tab when clamping. In this way, the length and width of the pressing block 303 and the clamping part 401 are greater than the size of the thin tab, so that the contact area is sufficient when clamping, and the heat dissipation effect is improved.

[0051] In an embodiment, referring to Figure 4The utility model provides a kind of thin tab test tooling, including bottom plate 5, still including two described thin tab clamping mechanisms being set on the bottom plate 5, two current line terminal assemblies 6 being respectively connected in two described thin tab clamping mechanisms, two voltage line terminal assemblies 7 being respectively connected in the thin tab clamping mechanism and support seat 8 being set between two described thin tab clamping mechanisms for turning into electric core.This design, by fitting thin tab clamping mechanism, solve the deformation problem caused by thin tab multiple disassembly in original tab test fixed;

[0052] Specifically, current line terminal assembly 6 includes current line and current line terminal, and is fixed by bolt; voltage line terminal assembly 7 includes voltage line and voltage line terminal, and is fixed by bolt.

[0053] In an embodiment, referring to Figure 5 The distance between the two thin tab clamping mechanisms is adjustable, so that the tooling can be adapted to batteries of different sizes.

[0054] Specifically, two through strip grooves 501 are formed on the bottom plate 5 along the straight line direction of the distance between the two thin tab clamping mechanisms, and the strip grooves 501 are provided with a fixing plate 9, which is located at the bottom of the strip grooves 501 and can be clamped into any position of the strip grooves 501, and the base 1 of any thin tab clamping mechanism can be connected with the fixing plate 9 by bolts.

[0055] It should be noted that if the embodiments of the utility model involve directional indications such as up, down, left, right, front, back, etc., the directional indications are only used to explain the relative positional relationship, movement condition, etc. between the components in a certain specific posture, such as shown in the drawings, and if the specific posture changes, the directional indications will also change accordingly.

[0056] In addition, if the embodiments of the utility model involve descriptions such as "first", "second", etc., the descriptions of "first", "second", etc. are only for description purposes and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features with "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes, for example, "A and / or B" includes A scheme, or B scheme, or A and B simultaneously satisfy the scheme. In addition, "multiple" means more than two. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled persons in the art, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist and is not within the protection scope required by the utility model.

[0057] It should be understood that the examples and embodiments described herein are merely illustrative and not intended to limit the present application, and those skilled in the art can make various modifications or changes according to it, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A thin tab clamping mechanism comprising a base (1), characterized in that, Also comprising: a quick clamp (2) arranged on the base (1) and having an upper clamp block (3) connected at the jaw; the upper clamp block (3) is connectable with the voltage wire terminal; a lower clamp block (4) arranged on the base (1) for cooperating with the upper clamp block (3) to clamp the tab, and connectable with the current wire terminal.

2. The thin tab clamping mechanism according to claim 1, characterized by, The quick clamp (2) is arranged in an inclined manner towards the position of the lower clamp block (4).

3. The thin tab clamping mechanism according to claim 1, characterized by, The upper clamp block (3) comprises a base (301) and a voltage collecting piece (302) arranged in the base (301), and one end of the voltage collecting piece (302) extends out of the base (301).

4. The thin tab clamping mechanism according to claim 3, characterized by, The upper clamp block (3) further comprises a pressing block (303) arranged in the base (301), and the pressing block (303) is connected with the voltage collecting piece (302).

5. The thin tab clamping mechanism according to claim 4, characterized by, The pressing block (303) is connected with the base (301) through a bolt, and a spring (304) is further arranged between the pressing block (303) and the base (301).

6. The thin tab clamping mechanism according to claim 4, wherein The lower clamp block (4) comprises a clamping part (401) cooperating with the pressing block (303) and a connecting part (402) connected with the current wire terminal.

7. The thin tab clamping mechanism according to claim 6, characterized by The clamping surface of the pressing block (303) and the clamping part (401) are both in a toothed shape.

8. The thin tab clamping mechanism according to claim 6, wherein The pressing block (303) and the clamping part (401) can wrap the tab when clamping cooperates.

9. A thin tab testing tooling comprising a base plate (5), characterized in that, Further comprising two thin tab clamping mechanisms as claimed in any one of claims 1-8 arranged on the base plate (5), two current wire terminal assemblies (6) respectively connected with the two thin tab clamping mechanisms, and two voltage wire terminal assemblies (7) respectively connected with the thin tab clamping mechanisms.

10. The thin tab testing tooling of claim 9, wherein, The distance between the two thin tab clamping mechanisms is adjustable.

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