Battery cover plate short circuit test mechanism

Abstract

The utility model relates to the technical field of measuring equipment, and discloses a battery cover plate short circuit testing mechanism. The mechanism comprises a base, a measuring assembly and a measuring jig, a first supporting frame is vertically arranged on the base, and a driving assembly is arranged on the first supporting frame; the measuring assembly is arranged at the moving end of the driving assembly and comprises a mounting seat and a plurality of groups of measuring probes arranged on the mounting seat, and each group of measuring probes is composed of a positive electrode probe and a negative electrode probe which are arranged adjacently; the measuring jig is arranged below the measuring assembly, the measuring jig is provided with a plurality of containing cavities used for containing battery cover plates to be detected, and the containing cavities are of conical counter bore structures; and the mounting seat and the measuring jig are made of insulating materials. According to the battery cover plate short circuit test mechanism, the measurement efficiency and the measurement accuracy of the battery cover plate are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to measuring equipment technical field, concretely is a battery cover short circuit test mechanism. BACKGROUND

[0002] Lithium ion battery has become the main component of new energy market, along with the development of new energy, the market demand of lithium battery is increasing, and the performance requirement of lithium battery is gradually improved, especially energy density, in improving energy density, battery cost is also increasing, in order to improve the overall performance of battery, the production process of each component of battery also needs strict control. Short circuit test as an important safety performance is the most basic test item of battery safety evaluation;A typical cylindrical lithium battery cover assembly is usually composed of a positive pole, a negative pole and an insulating sheet between the positive and negative poles, therefore, the battery cover needs to be short circuit tested after production to ensure the safety of a finished lithium battery.

[0003] At present, battery cover assembly is mainly tested by manual multimeter, that is, workers contact the positive and negative poles of the battery cover assembly with the two probes of the multimeter, and then judge whether the positive and negative poles of the lithium battery cover assembly are short-circuited by the display parameters of the multimeter, the detection efficiency is very low. The existing detection equipment can only detect one at a time, and the detection efficiency is low, which is not conducive to the detection of batch battery cover assemblies.

[0004] Therefore, there is an urgent need for a battery cover short circuit test mechanism to solve the above problems. UTILITY MODEL CONTENTS

[0005] Based on the above, the utility model aims to provide a battery cover short circuit test mechanism to solve the problem of low short circuit test efficiency of battery cover assembly in the prior art.

[0006] In order to solve the above technical problems, the utility model adopts the following technical scheme:

[0007] The utility model provides a battery cover short circuit test mechanism, which comprises:

[0008] A first support frame is vertically arranged on the base, and a driving assembly is arranged on the first support frame;

[0009] A measuring assembly is arranged on the moving end of the driving assembly, comprising a mounting seat and a plurality of measuring probes arranged on the mounting seat, each measuring probe comprising a positive probe and a negative probe arranged adjacent to each other;

[0010] A measuring jig is arranged below the measuring assembly, a plurality of accommodating cavities for placing battery covers to be detected are arranged on the measuring jig, and the accommodating cavities are conical counterbore structures.

[0011] The mounting seat and the measuring fixture are made of insulating material.

[0012] As an optional technical scheme of the battery cover plate short circuit test mechanism, a plurality of groups of the measuring probes are vertically arranged in the mounting seat along the X-axis direction, the top ends of the measuring probes extend above the mounting seat, and the bottom ends of the measuring probes extend below the mounting seat.

[0013] As an optional technical scheme of the battery cover plate short circuit test mechanism, the length of the measuring probe extending below the mounting seat is greater than the height of the accommodating cavity.

[0014] As an optional technical scheme of the battery cover plate short circuit test mechanism, the positive probe and the negative probe in each group of the measuring probes are respectively provided with two positive probes and two negative probes, the two positive probes are arranged at intervals along the Y-axis direction, and the two negative probes are arranged on the left and right sides of the two positive probes.

[0015] As an optional technical scheme of the battery cover plate short circuit test mechanism, the top ends of the positive probe and the negative probe are respectively connected to the positive and negative poles of an external measuring instrument, and the bottom ends of the positive probe and the negative probe are used for abutting against the positive and negative poles of the battery cover plate.

[0016] As an optional technical scheme of the battery cover plate short circuit test mechanism, the driving assembly comprises a driving cylinder fixed to the first support frame, an installation plate is arranged at the output end of the driving cylinder, a driving plate is arranged on the installation plate, and the mounting seat is arranged at the bottom end of the driving plate.

[0017] As an optional technical scheme of the battery cover plate short circuit test mechanism, a limit sensor is arranged on one side of the driving cylinder, and a limit sensor sheet matched with the limit sensor is arranged on one side of the installation plate.

[0018] As an optional technical scheme of the battery cover plate short circuit test mechanism, a limit block is further arranged at the bottom of the mounting seat.

[0019] As an optional technical scheme of the battery cover plate short circuit test mechanism, a second support frame parallel to the first support frame is vertically arranged on the base, a bearing plate is arranged on the second support frame, and the measuring fixture is arranged on the upper end of the bearing plate.

[0020] As an optional technical scheme of the battery cover plate short circuit test mechanism, the bearing plate is made of strong magnet material.

[0021] The battery cover plate short circuit test mechanism has the following beneficial effects:

[0022] The battery cover plate short circuit test mechanism comprises the following components:

[0023] The base is vertically provided with a first support frame, and a driving assembly is arranged on the first support frame; the measuring assembly is arranged on a moving end of the driving assembly and comprises a mounting seat and a plurality of measuring probes arranged on the mounting seat, each of the measuring probes is composed of adjacent positive probes and negative probes; the measuring jig is arranged below the measuring assembly, a plurality of accommodation cavities for placing battery cover plates are formed in the measuring jig, and the accommodation cavities are conical counterbore structures; the mounting seat and the measuring jig are made of insulating materials.

[0024] In the above structure, the measuring probes are driven to move upward by the driving assembly, the battery cover plates are placed in the accommodation cavities on the measuring jig, and the measuring probes are driven to move downward by the driving assembly until the positive probes and the negative probes abut against the positive and negative poles of the battery cover plates; since the top ends of the positive probes and the negative probes are electrically connected with the positive and negative poles of an external measuring instrument, when the bottom ends of the positive probes and the negative probes abut against the positive and negative poles of the battery cover plates, the parameter of whether the measured battery cover plate is short-circuited can be directly read by the external measuring instrument; the measuring efficiency and the measuring accuracy of the battery cover plate short-circuit testing mechanism for the battery cover plates are improved by arranging the plurality of measuring probes and the plurality of battery cover plate accommodation cavities. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a whole structure schematic view of the battery cover plate short-circuit testing mechanism in the embodiment of the utility model;

[0026] Figure 2 It is a structure schematic view of the measuring assembly in the embodiment of the utility model;

[0027] Figure 3 It is a structure schematic view of the measuring jig in the embodiment of the utility model;

[0028] Figure 4 It is a sectional view schematic view of the measuring jig in the embodiment of the utility model.

[0029] In the drawing:

[0030] 1, base; 10, first support frame; 11, second support frame; 2, driving assembly; 20, driving cylinder; 21, mounting plate; 22, driving plate; 23, limit sensor; 24, limit sensor sheet; 3, measuring assembly; 30, measuring probe; 301, positive probe; 302, negative probe; 31, mounting seat; 32, limit block; 4, measuring jig; 40, accommodation cavity; 401, battery cover plate; 5, bearing plate. DETAILED DESCRIPTION

[0031] The utility model will be described further in detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the utility model and are not limited to the utility model. In addition, it should be noted that only the parts related to the utility model are shown in the drawings for the convenience of description, not all the structures.

[0032] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0033] In the utility model, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "upper", "upper" and "upper" of the first feature to the second feature include that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0034] In the description of the embodiment, the terms "upper", "lower", "left", "right" and other orientation or position relationship are based on the orientation or position relationship shown in the drawings, only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, therefore cannot be understood as a limitation of the utility model.

[0035] In the description of the utility model, unless otherwise stated, the meaning of "a plurality of" is two or more. In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.

[0036] As Figures 1-4As shown, the utility model provides a kind of battery cover short-circuit test mechanism, the mechanism includes base 1, vertically equipped with first support frame 10 on base 1, first support frame 10 is equipped with drive assembly 2;Measurement component 3, equipped with the mobile end of drive assembly 2, including mounting seat 31 and multiple groups of measurement probe 30 on mounting seat 31, each group of measurement probe 30 is by adjacent setting positive probe 301 and negative probe 302;Measurement fixture 4, equipped with the below of measurement component 3, multiple accommodation cavities 40 for placing battery cover 401 to be detected are opened in measurement fixture 4, and accommodation cavity 40 is conical counterbore structure;Wherein, mounting seat 31 and measurement fixture 4 are made of insulating material.

[0037] The utility model provides a kind of battery cover short-circuit test mechanism by drive assembly 2 drives measurement probe 30 to move upwards, places battery cover 401 in the accommodation cavity 40 on measurement fixture 4, drives measurement probe 30 to move downwards under the driving of drive assembly 2 until positive probe 301 and negative probe 302 respectively abut on the positive and negative pole of battery cover 401;Since the top end of positive probe 301 and negative probe 302 is electrically connected with the positive and negative pole of external measuring instrument respectively, when the bottom end of positive probe 301 and negative probe 302 abuts on the positive and negative pole of battery cover 401, the parameter whether the measured battery cover 401 is short-circuit can be directly read by external measuring instrument;By setting multiple measurement probe 30 and the accommodation cavity 40 of multiple battery cover 401, the measurement efficiency and measurement accuracy of the battery cover short-circuit test mechanism to battery cover 401 are improved.

[0038] Specifically, as shown, Figure 1 As shown, drive assembly 2 includes drive cylinder 20 fixed on first support frame 10, the output end of drive cylinder 20 is set downward, bottom plate is arranged between drive cylinder 20 and support seat, and drive cylinder 20 is fixedly installed on first support frame 10 by bottom plate;The output end of drive cylinder 20 is equipped with mounting plate 21, and longitudinal slide rail is formed on the side of drive cylinder 20 away from bottom plate, and slide block matched with slide rail is arranged on slide rail, and mounting plate 21 is arranged on slide block, and mounting plate 21 can be driven to move up and down by the extension and contraction movement of drive cylinder 20;Drive plate 22 is installed on the side of mounting plate 21 away from drive cylinder 20, and mounting seat 31 is arranged on the bottom end of drive end, so that drive cylinder 20 drives mounting plate 21 to move up and down, and then drives measurement probe 30 to move up and down, when drive cylinder 20 drives measurement probe 30 to move upwards, the clearance between measurement probe 30 and measurement fixture 4 is formed, which facilitates the external mechanical hand or manual to place battery cover 401 into the accommodation cavity 40 on measurement fixture 4, when drive cylinder 20 drives measurement probe 30 to move downwards, positive probe 301 and negative probe 302 can be electrically connected by abutting on the positive and negative pole of battery cover 401.

[0039] In the embodiment, as shown in Figure 1 A limit sensor 23 is mounted on one side of the driving cylinder 20, and a limit sensor sheet 24 matching the limit sensor 23 is mounted on one side of the mounting plate 21. The limit sensor 23 and the limit sensor sheet 24 are arranged to limit the maximum stroke of the driving cylinder 20 when the measuring assembly 3 moves downward, so as to prevent the measuring probe 30 from moving downward excessively and causing the battery cover plate 401 to be punctured.

[0040] Further, a limit block 32 is arranged at the bottom of the mounting seat 31. The limit block 32 and the plurality of measuring probes 30 are arranged in parallel, and the downward extending part of the measuring probe 30 is lower than the bottom of the limit block 32. When the driving cylinder 20 drives the measuring probe 30 to move downward, the bottom of the limit block 32 abuts against the measuring jig 4, and the measuring probe 30 abuts against the battery cover plate 401. Thus, the maximum stroke of the measuring probe 30 moving downward is further limited, and the protection of the battery cover plate 401 is strengthened.

[0041] In the embodiment, as shown in Figure 2 The measuring probe 30 is preferably provided with five groups. The five groups of measuring probes 30 are vertically arranged in the mounting seat 31 along the X-axis direction at equal intervals, the top ends of the measuring probes 30 extend above the mounting seat 31, and the bottom ends of the measuring probes 30 extend below the mounting seat 31. The length of the measuring probe 30 extending below the mounting seat 31 is greater than the height of the accommodating cavity 40. The positive probe 301 and the negative probe 302 in each group of measuring probes 30 are respectively provided with two positive probes 301 and two negative probes 302. The two positive probes 301 are arranged in the Y-axis direction at intervals, and the two negative probes 302 are respectively arranged on the left and right sides of the two positive probes 301 along the X-axis direction. Thus, the two positive probes 301 and the two negative probes 302 can abut against the positive and negative poles of the battery cover plate 401 at multiple points, so as to ensure that each positive probe 301 and each negative probe 302 can be electrically connected to the battery cover plate 401. It should be noted that the number and position of the positive probe 301 and the negative probe 302 can be adjusted according to different types of battery cover plates 401, so as to adapt to short circuit tests of different types of battery cover plates 401 and increase the applicability of the mechanism. The top ends of the positive probe 301 and the negative probe 302 are respectively connected to the positive and negative poles of an external measuring instrument, and the bottom ends of the positive probe 301 and the negative probe 302 are used to abut against the positive and negative poles of the battery cover plate 401. The structure realizes the reciprocating electrical connection between the external measuring instrument and the battery cover plate 401 through the measuring probe 30, so as to realize the short circuit test of the battery cover plate 401.

[0042] Specifically, the measuring jig 4 is made of insulating material, so as to ensure that the positive probe 301 and the negative probe 302 are well insulated and isolated from each other, and prevent short circuit between the positive probe 301 and the negative probe 302 from affecting the measurement result of the battery cover plate 401.

[0043] In the embodiment, as shown in Figure 1As shown, the base 1 is vertically mounted with the second support frame 11 parallel to the first support frame 10, the second support frame 11 is provided with the bearing plate 5, and the measuring jig 4 is provided on the upper end face of the bearing plate 5; a plurality of mounting holes are formed in the measuring jig 4 and are threadedly connected with the bearing plate 5, and when different measuring jigs 4 are needed to be replaced, they can be disassembled, and it should be noted that the bearing plate 5 is made of strong magnet material, and the positive and negative poles of the battery cover plate 401 are metal materials, when the battery cover plate 401 is placed in the accommodating cavity 40, the bearing plate 5 can generate a certain magnetic attraction force on the battery cover plate 401, so that the battery cover plate 401 is more stably placed in the accommodating cavity 40, and the vibration generated during the operation of the detection mechanism is prevented to tilt the battery cover plate 401 and affect the measurement result.

[0044] In the embodiment, as shown in Figure 2 and Figure 4 As shown, the measuring jig 4 is preferably provided with 5 accommodating cavities 40, and the mounting seat 31 is preferably provided with 5 groups of measuring probes 30 corresponding to the accommodating cavities 40, and it should be noted that the number of measuring probes 30 and accommodating cavities 40 can also be adjusted according to the actual measurement efficiency to meet higher measurement efficiency; the accommodating cavity 40 is a conical counterbore, and when the battery cover plate 401 is placed in the accommodating cavity 40, it finally abuts against the bottom of the accommodating cavity 40, and the conical hole is large at the top and small at the bottom, which facilitates the external mechanical hand or manual way to take and place the battery cover plate 401, and it should be noted that the shape of the accommodating cavity 40 can be set according to the shape of the different battery cover plates 401 to increase its applicability; in addition, the accommodating cavity 40 and the mounting seat 31 can be made of plastic or other insulating materials with good insulating properties.

[0045] The above is only a preferred embodiment of the present application, and does not limit the present application in any form, although the present application is disclosed as above with a preferred embodiment, however, it is not intended to limit the present application, any skilled person in the art, without departing from the technical scheme of the present application, can make some changes or modifications of the above disclosed technical content to obtain equivalent embodiments, but as long as it does not deviate from the technical scheme of the present application, according to the present application, any simple modification, equivalent change and modification of the above embodiment are within the scope of the present application.

Claims

1. A battery cover short circuit test mechanism, characterized by, The utility model relates to a battery cover plate detection device, including: The base is vertically provided with a first support frame, and a driving assembly is arranged on the first support frame; A measuring assembly is arranged on the moving end of the driving assembly, including a mounting seat and a plurality of measuring probes arranged on the mounting seat, each of the measuring probes is composed of adjacent positive and negative probes; A measuring jig is arranged below the measuring assembly, a plurality of accommodation cavities for placing the battery cover plate to be detected are formed in the measuring jig, and the accommodation cavities are conical counterbore structures; The mounting seat and the measuring jig are made of insulating materials.

2. The battery cover short circuit test mechanism of claim 1, wherein, A plurality of measuring probes are vertically arranged on the mounting seat at equal intervals along the X-axis direction, the top end of the measuring probe extends above the mounting seat, and the bottom end of the measuring probe extends below the mounting seat.

3. The battery cover short circuit test mechanism of claim 2, wherein, The length of the measuring probe extending below the mounting seat is greater than the height of the accommodation cavity.

4. The battery cover short circuit test mechanism of claim 3, wherein, The positive and negative probes in each measuring probe are provided with two positive probes and two negative probes respectively, the two positive probes are arranged at intervals along the Y-axis direction, and the two negative probes are arranged on the left and right sides of the two positive probes respectively.

5. The battery cover short circuit test mechanism of claim 4, wherein, The top end of the positive and negative probes is connected to the positive and negative poles of an external measuring instrument, and the bottom end of the positive and negative probes is used for abutting against the positive and negative poles of the battery cover plate.

6. The battery cover short circuit test mechanism of claim 1, wherein, The driving assembly includes a driving cylinder fixedly arranged on the first support frame, an installation plate is arranged on the output end of the driving cylinder, a driving plate is arranged on the installation plate, and the mounting seat is arranged on the bottom end of the driving plate.

7. The battery cover short circuit test mechanism of claim 6, wherein, A limit sensor is arranged on one side of the driving cylinder, and a limit sensor sheet matched with the limit sensor is arranged on one side of the installation plate.

8. The battery cover short test mechanism of claim 7, wherein, A limit block is further arranged on the bottom of the mounting seat.

9. The battery cover short test mechanism of claim 1, wherein, A second support frame is vertically arranged on the base and parallel to the first support frame, a bearing plate is arranged on the second support frame, and the measuring jig is arranged on the upper end of the bearing plate.

10. The battery cover short test mechanism of claim 9, wherein, The bearing plate is made of strong magnet material.

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