Electrical detection tool for battery

Abstract

The utility model discloses a battery's electric detection frock, including base, clamp, guide shaft, test block, test needle, battery support plate and support plate, the top of base front end is provided with battery support plate, the top of battery support plate places the battery of detection, the top rear end of base is provided with support plate, the front side upper portion of support plate is provided with clamp, the lower end of clamp has the compression rod, and the horizontal middle part position of fixed connection test block, the left and right two ends of test block respectively are through one guide shaft, the bottom fixed setting of guide shaft is on base, the forward protruding test needle mounting portion that is provided with the front end middle part of test block, be provided with a plurality of test needles on test needle mounting portion, the top of battery support plate is in with every test needle corresponding position, is provided with one test copper column respectively, the wire on battery places on the top of test copper column, the utility model discloses can fast and reliablely connect the wire on the battery (such as polymer battery) of wire, then carries out the electric property detection to the battery.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and in particular to an electrical testing fixture for batteries. Background Technology

[0002] Currently, small polymer batteries are increasingly being used in various portable mobile devices, such as smartwatches, Bluetooth headsets, and headphones.

[0003] As electronic products become smaller, there is a growing demand for smaller polymer batteries, which also require polymer batteries with connecting wires. This makes it easy for the increasingly thin wires leading from the polymer battery to become tangled and knotted, and the longer the wires, the more severe the tangling and knotting.

[0004] Before polymer batteries with leads leave the factory, they need to undergo electrical performance testing (including voltage, AC impedance, charge / discharge overcurrent, charge / discharge overcurrent delay, NTC resistance, etc.). However, due to interference from the leads on the polymer batteries, currently, before testing the battery's electrical performance, workers need to manually comb through the leads on the battery before connecting them to the electrical performance testing equipment. Manually combing the leads is time-consuming and inefficient, affecting the overall testing efficiency of batteries with leads.

[0005] It should be noted that small polymer batteries have low capacity, and their wires are thin and easily deformed. Multiple wires can easily cross or become tangled. Existing traditional electrical testing equipment requires workers to manually comb the wires before testing, which is inefficient and prone to errors.

[0006] Therefore, there is an urgent need to develop a technology that can solve the above-mentioned technical problems. Utility Model Content

[0007] The purpose of this utility model is to provide a battery electrical testing fixture to address the technical deficiencies of existing technologies.

[0008] Therefore, this utility model provides a battery electrical testing fixture, including a base, clamps, guide shaft, test block, test probe, battery tray and support plate;

[0009] A horizontally distributed battery tray is provided at the top front end of the horizontally distributed base;

[0010] The top of the battery tray is used to place the battery to be tested;

[0011] The base has vertically distributed support plates at the top rear end;

[0012] A clamp is provided on the upper front side of the support plate;

[0013] The lower end of the clamping rod of the clamp is fixedly connected to the middle of the test block in the lateral direction;

[0014] The test block passes perpendicularly through a guide shaft at both its left and right ends;

[0015] The bottom of the guide shaft is fixedly mounted on the base;

[0016] The front center of the test block has a test probe mounting part that protrudes forward;

[0017] Multiple test pins are vertically mounted on the test pin mounting section;

[0018] At the top of the battery tray, a test copper post is set at the position corresponding to each test probe;

[0019] The wires on the battery are placed on top of the test copper pillar.

[0020] As can be seen from the technical solution provided by this utility model above, compared with the prior art, this utility model provides a battery electrical testing fixture with a scientifically designed structure that can quickly and reliably connect the wires on a battery with leads (such as a polymer battery) and then perform electrical performance testing on the battery, which has significant practical significance for production. Attached Figure Description

[0021] Figure 1 A three-dimensional structural diagram of a battery electrical testing fixture provided by this utility model;

[0022] Figure 2 A three-dimensional structural diagram of a battery tray in an electrical testing fixture for batteries provided by this utility model.

[0023] Figure 3 A top view of a battery tray in an electrical testing fixture for batteries provided by this utility model;

[0024] Figure 4 A top view of a battery (specifically a small polymer battery with exposed long wires) that needs to be inspected by an electrical testing fixture for batteries provided by this utility model;

[0025] Figure 5 A schematic diagram showing the relative position of the battery tray in an electrical testing fixture for batteries provided by this utility model and the battery to be tested (specifically, a small polymer battery with exposed long wires).

[0026] In the diagram: 10-base, 20-clamp, 30-guide shaft, 10-test block, 50-test probe;

[0027] 60 - Battery tray, 70 - Battery, 80 - Support plate, 90 - Stabilizing plate. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0030] In the description of this patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0032] See Figures 1 to 5 This utility model provides a battery electrical testing fixture, including a base 10, a clamp 20, a guide shaft 30, a test block 40, a test pin 50, a battery support plate 60, and a support plate 80.

[0033] A horizontally distributed base 10 has a horizontally distributed battery tray 60 at its top front end;

[0034] The top of the battery tray 60 is used to place the battery 70 to be tested;

[0035] The base 10 has a vertically distributed support plate 80 at its top rear end;

[0036] A clamp 20 is provided on the upper front side of the support plate 80;

[0037] The lower end of the clamping rod 201 of the clamp 20 is fixedly connected to the middle of the test block 40 in the lateral direction;

[0038] The left and right ends of the test block 40 are perpendicularly passed through a guide shaft 30;

[0039] The bottom of the guide shaft 30 is fixedly mounted on the base 10;

[0040] The test block 40 has a test probe mounting part 401 that protrudes forward from the middle of its front end;

[0041] Multiple (specifically four) test needles 50 are vertically inserted through the test needle mounting part 401;

[0042] A test copper post 6001 is provided on the top of the battery tray 60 at a position corresponding to each test pin 50 (i.e., directly below it);

[0043] The wire 701 on the battery 70 is placed on top of the test copper pillar 6001.

[0044] It should be noted that the number of wires 701 on battery 70 is the same as the number of test pins 50 and test copper posts 6001.

[0045] In this utility model, specifically, the battery 70 has four wires 701;

[0046] Four test pins 50 are vertically installed on the test pin mounting part 401;

[0047] The top of the battery tray 60 has four test copper posts 6001 at positions corresponding to the four test pins 50.

[0048] In specific implementation, a battery limiting block 6004 and four wire guiding blocks 6005 are arranged horizontally at intervals in front of the four test copper pillars 6001 on the battery tray 60.

[0049] The battery limiting block 6004 and the wire guiding block 6005 protrude upward from the top surface of the battery tray 60;

[0050] Each pair of adjacent wire guide blocks 6005 has a wire guide groove 6002 between them;

[0051] The battery limiting block 6004 is located to the left of the four wire guide blocks 6005;

[0052] There is a wire guide groove 6002 between the battery limiting block 6004 and its adjacent wire guide block 6005; that is, there are a total of four wire guide grooves 6002.

[0053] Four wire guide slots 6002 are set up corresponding to four test copper pillars 6001.

[0054] Furthermore, the four wire guide slots 6002 are not arranged in parallel to each other;

[0055] The four wire guide slots are arranged in a radiating pattern;

[0056] It should be noted that the four wire guide grooves 6002 are grooves distributed at an angle;

[0057] Furthermore, the distance between the central axes of any two adjacent wire guide slots 6002 gradually increases from front to back. Therefore, by placing the four wires 701 on the battery 70 into the four wire guide slots 6002 respectively, the four wires 701 can be distributed at intervals.

[0058] Furthermore, the central axis of each wire guide groove 6002 intersects perpendicularly with the central axis of a test copper pillar 6001.

[0059] Furthermore, the bottom surface of the wire guide groove 6002 is a slope, the height of which gradually increases from front to back.

[0060] Furthermore, the highest point of the slope is equal to the height of the top surface of the test copper column 6001.

[0061] It should be noted that, for this utility model, the battery tray 60 is provided with a wire guide groove 6002 for sorting the wires led out from the battery. The wire guide grooves are arranged in a radiating pattern, and the bottom of the wire guide grooves is designed with a sloping surface.

[0062] It should be noted that, for this utility model, the battery tray 60 is designed with a wire guide groove 6002. After the battery 70 is placed in the battery tray 60, the wire 701 on the battery 70 will flow into the guide groove along the sloping surface at the bottom of the wire guide groove 6002, quickly positioning the wire.

[0063] Furthermore, when the battery 70 is placed on top of the battery tray 60, the front side of the battery limiting block 6004 is used to abut (i.e., in close contact) the remaining area of ​​the rear side of the battery 70 that does not have the wire 701.

[0064] Furthermore, when the front side of the battery limiting block 6004 abuts (i.e., in close contact) with the remaining area of ​​the rear side of the battery 70 that does not have wires 701, the stripped heads 7010 at the ends of the four wires 701 on the battery 70 are located on the top surfaces of the four test copper pillars 6001.

[0065] It should be noted that the battery tray 60 is provided with a battery positioning block for positioning the battery. The stripped ends 7010 of the four wires 701 on the battery 70 are exposed conductive metal parts, and the remaining parts of the four wires 701, except for the stripped ends 7010, are covered with an insulating layer.

[0066] In practice, the test copper pillar 6001 protrudes upwards from the top surface of the battery tray 60;

[0067] The top of the test copper post 6001 is used to contact the stripped head 7010 at the end of the wire 701 of the battery 70;

[0068] In practice, the lower end of the test pin 50 protrudes downwards from the bottom surface of the test block 40;

[0069] The vertical heights of the battery limiting block 6004 and the wire guiding block 6005 are equal;

[0070] The vertical length of the lower end of the test probe 50 protruding from the bottom surface of the test block 40 is greater than or equal to the vertical height of the wire guide block 6005.

[0071] It should be noted that in this utility model, the four test pins 50 serve to squeeze and limit the four wires 701 on the battery 70 located below.

[0072] It should be noted that, for this utility model, the battery tray 60 is designed with a test copper post 6001 for contacting the stripping head 7010 at the end of the battery wire. The test copper post 6001 is slightly higher than the top plane of the battery tray 60 and fits the shape of the end of the wire 701 of the battery 70, so as to avoid deformation of the stripping head 7010 at the end of the wire 701.

[0073] It should be noted that, in this utility model, after the battery 70 is placed on the top surface of the battery tray 60, the operator can manually push the clamp 20 to lower the test probe 50, which, together with the test copper post 6001, clamps the stripped end 7010 of the lead wire 701 of the battery 70. Furthermore, the test probe 50 itself has a built-in spring with a telescopic function, which absorbs some of the pushing force, making it less likely for the stripped end 7010 of the lead wire to be damaged by the test probe 50. The test probe is a commonly used component in existing conventional electrical testing fixtures and has its own telescopic function, which will not be described in detail here.

[0074] In practice, the battery tray 60 is fixedly connected to the base 10 by two screws;

[0075] An adjustment groove 6003 is provided at the front right end and the rear left end of the battery tray 60;

[0076] The base 10 is provided with a threaded mounting hole at a position corresponding to each adjustment slot 6003;

[0077] After the screw passes through the adjustment groove 6003, it is threadedly fixed to the pre-reserved threaded mounting hole on the base 10.

[0078] It should be noted that, for this utility model, when using screws to fix the battery tray 60 to the base 10, the relative position of the battery tray 60 and the base 10 can be finely adjusted by adjusting the distribution of the screws in the adjustment groove; wherein, the screw passes through the adjustment groove 6003 and is threadedly connected to the threaded hole reserved on the base 10.

[0079] In practice, the battery 70 is a polymer battery with four wires 701. These four wires include: a positive wire, a negative wire, an NTC signal line (i.e., a temperature signal line), and a flying wire. The positive and negative wires are used for charging and discharging the battery, the NTC wire is used for temperature detection and protection, and the flying wire is used to connect the battery to other devices.

[0080] Each test copper pillar 6001 has one end of a test wire connected to the bottom for connecting to an external battery electrical performance testing device;

[0081] The four test wires are connected to the four wires 701 on the battery 70 (including the positive wire, negative wire, NTC signal line, and flying wire, etc., which can be adjusted in order according to different battery models) through the test copper post 6001. All four test wires can be hidden under the base 10 (for example, the bottom of the base 10 has four spaced, downward-opening test wire receiving slots, each of which is used to receive one test wire).

[0082] The four test leads are connected to an external battery electrical performance testing device. Specifically, the ends of the four test leads are brought together to a DP37 universal connector, and then connected to the external battery electrical performance testing device through the DP37 universal connector.

[0083] In practice, the external battery electrical performance testing equipment is a well-established and widely used conventional testing device with mature technology. For example, the BTS-7000 multi-channel intelligent battery testing system (battery comprehensive tester) produced by Shenzhen Tais Electronics Co., Ltd. can be used. This device can test the electrical performance of the battery (specifically including electrical performance such as voltage, AC impedance, charge and discharge overcurrent, charge and discharge overcurrent delay, NTC resistance, etc.). The specific connection method between the test wires of this invention and the battery comprehensive tester is common knowledge to those skilled in the art and will not be described in detail here.

[0084] To better understand the technical solution of this utility model, the working principle of this utility model is explained below.

[0085] Initially, the staff placed the four wires 701 on the battery 70 (the four wires correspond to the positive wire, negative wire, NTC signal line, and jumper wire, respectively, and the order can be freely adjusted) into the four wire guide slots 6002.

[0086] Then, place the rear side of the battery 70 against the battery limiting block 6004 and into the battery tray 60 (e.g., Figure 5 (As shown), align the stripped ends 7010 of the four wires 701 on the battery 70 with the test copper post 6001.

[0087] Then, the operator manually pushes the clamp 20, causing the test probe 50 to descend. The test probe 50, together with the test copper post 6001, clamps the stripped end 7010 of the lead wire 701 of the battery 70. Simultaneously, the internal lead wire of the test copper post 6001 (i.e., the test lead wire connected to its bottom) is connected to an external battery electrical performance testing device (such as the BTS7000 tester from Shenzhen Tais Electronics Co., Ltd.) via a DP37 connector. This external device allows for the testing of the battery's electrical performance (including aspects such as voltage, AC impedance, charge / discharge overcurrent, charge / discharge overcurrent delay, and NTC resistance).

[0088] In this utility model, specifically, the base 10, the test block 40, and the battery tray 60 are all made of insulating bakelite.

[0089] In this utility model, specifically, the clamp 20 adopts a conventional linear clamp with mature existing technology, such as the 304-C push-pull quick clamp produced by Huiquan Hardware Tools Co., Ltd.

[0090] In this invention, the clamp 20, guide shaft 30, and test probe 50 are all standard metal parts. Furthermore, the entire tooling of this invention is chamfered to remove burrs and prevent damage to the battery or short circuits.

[0091] In this utility model, specifically, the left and right ends of the test block 40 are respectively provided with a bearing mounting hole at the position corresponding to the two guide shafts 30;

[0092] A linear bearing is installed on the inside of each bearing mounting hole;

[0093] The inner ring of each linear bearing passes vertically through a guide shaft 30.

[0094] In practice, the inner ring of the linear bearing and the guide shaft 30 are in clearance fit.

[0095] It should be noted that, for this utility model, two guide shafts 30 are installed on the base 10, and the test block 40 is installed on the guide shafts 30 and can slide up and down along the guide shafts 30;

[0096] It should be noted that, in this utility model, a clamp 20 is installed on the support plate 80, and the clamp 20 is connected to the test block 40, which can apply power to the up and down movement of the test block 40; when the operator manually operates the clamp 20 to apply upward and downward forces to the test block 40, the test block 40 can be moved up and down, which in turn can drive the test needle 50 installed on the test block 40 to move up and down together.

[0097] It should be noted that in this utility model, the number of guide shafts 30 is at least two, but not limited to two. For example, two guide shafts can pass through the left and right ends of the test block 40 respectively.

[0098] In this utility model, specifically, a stabilizing plate 90 is also provided on the rear side of the support plate 80;

[0099] The bottom of the stabilizing plate 90 is fixedly connected to the top of the base 10. Therefore, the installation strength of the support plate 80 can be enhanced.

[0100] Compared with the prior art, the battery electrical testing fixture of this utility model has the following beneficial effects:

[0101] 1. A test copper post 6001 is designed on the battery tray 60. The test copper post 6001 is slightly higher than the top plane of the battery tray 60 and conforms to the shape of the end of the battery wire 701 to prevent deformation of the wire stripping head 7010. The wires are connected below the test copper post 6001, and all wires are hidden at the bottom of the fixture to avoid the wires affecting the operator's operation.

[0102] 2. The battery tray 60 is designed with a wire guide groove 6002. After the battery 70 is placed in the battery tray 60, the wire 701 can flow into the guide groove along the sloping surface of the wire guide groove 6002. The employee only needs to place the wire 701 near the wire guide groove and pull the battery backward to allow the wire 701 to enter the wire guide groove 6002. Then, when the leading edge of the battery 70 (i.e., Figure 4 When the rear side shown is close to the limiting block 6004, the stripping head 7010 on the wire 701 of the battery 70 is also located on the test copper pillar 6001. The operation speed is fast and it is suitable for battery models with a large number of wires.

[0103] 3. The battery is placed horizontally on the battery tray 60, making it easy for employees to scan the QR code on the battery surface using existing barcode scanning equipment.

[0104] 4. After the battery 70 is placed in the battery tray 60, the employee can manually push the clamp 20 to lower the test probe 50, which, together with the test copper post 6001, clamps the stripped end 7010 of the lead wire 701 of the battery 70. The test probe 50 absorbs some of the pushing force, making it less likely to damage the stripped end 7010 of the lead wire. The manual operation is simple, and the stripped end 7010 of the lead wire is less likely to be damaged.

[0105] 5. By applying this utility model, it is possible to conveniently and quickly sort out multiple (e.g., four) wires on the battery, making it easier for employees to operate and locate, and improving the pass rate of electrical inspection.

[0106] 6. By adjusting the position of the test probe (i.e., test needle 50) and the test copper pillar 6001, this utility model makes the wire 701 led out from the battery 70 less prone to deformation under force.

[0107] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An electrical testing tool for a battery, characterized by, Includes a base (10), clamps (20), guide shaft (30), test block (40), test probe (50), battery tray (60) and support plate (80); A horizontally distributed base (10) has a horizontally distributed battery tray (60) at the top front end. The top of the battery tray (60) is used to place the battery (70) to be tested. The base (10) has a vertically distributed support plate (80) at the top rear end. A clamp (20) is provided on the upper front side of the support plate (80); The clamp (20) has a clamping rod (201) at the lower end, which is fixedly connected to the middle of the test block (40) in the lateral direction; The left and right ends of the test block (40) pass vertically through a guide shaft (30); The bottom of the guide shaft (30) is fixedly mounted on the base (10); The test block (40) has a test pin mounting part (401) that protrudes forward from the middle of the front end. Multiple test pins (50) are vertically inserted through the test pin mounting part (401). A test copper post (6001) is provided on the top of the battery tray (60) at a position corresponding to each test pin (50). The wire (701) on the battery (70) is placed on top of the test copper pillar (6001).

2. The battery testing fixture as described in claim 1, characterized in that, The number of wires (701) on the battery (70) is the same as the number of test pins (50) and test copper posts (6001).

3. The battery testing fixture as described in claim 1, characterized in that, The battery (70) has four wires (701). Four test pins (50) are vertically inserted through the test pin mounting part (401). The top of the battery tray (60) has four test copper posts (6001) at positions corresponding to the four test pins (50).

4. The battery testing fixture as described in claim 3, characterized in that, The battery tray (60) is positioned in front of the four test copper pillars (6001), with a battery limiting block (6004) and four wire guide blocks (6005) arranged horizontally at intervals. The battery limiting block (6004) and the wire guiding block (6005) protrude upward from the top surface of the battery tray (60); Each of any two adjacent wire guide blocks (6005) has a wire guide groove (6002); The battery limiting block (6004) is located to the left of the four wire guide blocks (6005); The battery limiting block (6004) has a wire guiding groove (6002) between it and its adjacent wire guiding block (6005). Four wire guide slots (6002) are set up corresponding to four test copper pillars (6001).

5. The battery testing fixture as described in claim 4, characterized in that, The four wire guide slots are arranged in a radiating pattern; And / or, The distance between the central axes of any two adjacent wire guide slots (6002) gradually increases from front to back; And / or, The central axis of each wire guide groove (6002) intersects perpendicularly with the central axis of a test copper pillar (6001); And / or, The bottom surface of the wire guide groove (6002) is a sloping surface, the height of which gradually increases from front to back, and the height of the highest position of the sloping surface is equal to the height of the top surface of the test copper column (6001).

6. The battery testing fixture as described in claim 4, characterized in that, When the battery (70) is placed on top of the battery tray (60), the front side of the battery limiting block (6004) is used to abut against the remaining area of ​​the rear side of the battery (70) where there is no wire (701); When the front side of the battery limiting block (6004) abuts against the remaining area of ​​the rear side of the battery (70) where there are no wires (701), the stripped heads (7010) at the ends of the four wires (701) on the battery (70) are located on the top surface of the four test copper pillars (6001).

7. The battery testing fixture as described in claim 4, characterized in that, The test copper column (6001) protrudes upwards from the top surface of the battery tray (60); The top of the test copper post (6001) is used to contact the stripped head (7010) at the end of the wire (701) of the battery (70); And / or, The lower end of the test probe (50) protrudes downward from the bottom surface of the test block (40); The battery limiting block (6004) and the wire guiding block (6005) have the same vertical height; The vertical length of the lower end of the test probe (50) protruding from the bottom surface of the test block (40) is greater than or equal to the vertical height of the wire guide block (6005).

8. The battery testing fixture as described in claim 4, characterized in that, The bottom of the test copper column (6001) is connected to an external battery electrical performance testing device via a test wire.

9. The electrical testing fixture for a battery as described in any one of claims 1 to 8, characterized in that, The left and right ends of the test block (40) are respectively provided with a bearing mounting hole at the position corresponding to the two guide shafts (30); A linear bearing is installed on the inside of each bearing mounting hole; The inner ring of each linear bearing passes vertically through a guide shaft (30).

10. The electrical testing tool of any one of claims 1 to 8, wherein, The battery tray (60) is fixedly connected to the base (10) by two screws; An adjustment groove (6003) is provided at the front right end and the rear left end of the battery tray (60). The base (10) is provided with a threaded mounting hole at a position corresponding to each adjustment slot (6003); After the screw passes through the adjustment groove (6003), it is threadedly fixed to the pre-reserved threaded mounting hole on the base (10).

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