A same-side electrode cylindrical battery testing device

Abstract

The utility model relates to the technical field of cylindrical battery test, specifically point to a same side electrode cylindrical battery testing arrangement. The device includes the base plate, is equipped with the slide rail on the base plate, the slide seat is along the slide rail axial adjustable and is slid on the slide rail, is used for the butt joint battery to be measured, the telescopic mechanism, the fixed end of telescopic mechanism is located on the base plate, the telescopic end can be telescopic along the height direction of battery to be measured, the probe subassembly, the probe subassembly is located opposite in the telescopic end of telescopic mechanism and slide seat, follows the contact or separation of positive and negative pole of battery to be measured after telescoping. The slide seat is adjusted through the adjustable setting slide rail, and the probe subassembly is moved with the cooperation of telescopic mechanism, greatly increases the adjustment range of the spacing of probe subassembly and slide seat, is suitable for different specifications of battery to be measured, can stand type test battery when the base plate is set vertically, has higher versatility.

Description

Technical Field

[0001] This utility model relates to the field of cylindrical battery testing technology, specifically to a cylindrical battery testing device with electrodes on the same side. Background Technology

[0002] In commercially available cylindrical batteries with electrodes on the same side, testing often involves welding copper strips from the battery terminals and connecting them to the copper lugs of the battery testing equipment's test leads using fasteners. This process is time-consuming, labor-intensive, and inefficient. Some test fixtures with quick-clamp structures can only be used for flat testing and cannot be modified for vertical testing while the battery is in use, leading to data inaccuracies. Furthermore, the mounting position of cylindrical batteries is relatively fixed, and the quick-clamp's extension range is limited, making it unsuitable for cylindrical batteries of varying sizes and specifications, resulting in low versatility. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of the aforementioned background technology and provide a testing device for cylindrical batteries with electrodes on the same side.

[0004] The technical solution adopted in this utility model is: a testing device for cylindrical batteries with electrodes on the same side, the device comprising:

[0005] A substrate, wherein a slide rail is provided on the substrate;

[0006] A sliding seat, which is slidably mounted on the slide rail along the slide rail axis, is used to support the battery to be tested;

[0007] A telescopic mechanism, wherein the fixed end of the telescopic mechanism is disposed on the base plate, and the telescopic end can extend and retract along the height direction of the battery to be tested;

[0008] The probe assembly is located at the telescopic end of the telescopic mechanism, opposite to the sliding seat, and contacts or separates from the positive and negative terminals of the battery under test after telescopic extension.

[0009] Furthermore, the telescopic mechanism includes a fixed base on the substrate, a quick-release clamp on the fixed base, and a guide rod; the telescopic end of the quick-release clamp is provided with a push plate; the guide rod slides through the push plate along the length direction of the battery to be tested; the probe assembly is provided on the push plate.

[0010] Furthermore, the base plate is provided with a reinforcing flap, which abuts against the side wall of the fixing seat and is bolted to it; the fixing seat has an L-shaped structure, with the bottom edge of the fixing seat bolted to the base plate, and the reinforcing flap abuts against the side wall of the fixing seat opposite to its bottom edge.

[0011] Furthermore, the probe assembly includes a mounting plate, a first probe disposed on the mounting plate, and two second probes.

[0012] Furthermore, the mounting plate and the push plate are spaced apart, and the push plate is fixedly connected by multiple connecting columns; one end of each of the two guide rods is fixed on a fixed base and they are spaced apart.

[0013] Furthermore, the substrate is provided with a slide groove as a slide rail; there are two parallel slide grooves; the sliding seat is slidably disposed on the two parallel slide grooves.

[0014] Furthermore, the sliding seat includes a sliding plate and a seat plate disposed on the sliding plate. The sliding plate is provided with a fixing hole corresponding to the sliding groove. A fastening bolt passing through the sliding groove is provided in the fixing hole for bolting and fixing to the base plate after the axial position of the sliding groove is adjusted.

[0015] Furthermore, a T-shaped nut with a matching fastening bolt is slidably provided in the groove, and the lower end of the T-shaped nut is located on the back side of the substrate and is limited by the substrate in the direction perpendicular to the substrate; the part of the T-shaped nut embedded in the groove abuts against the side wall of the groove to restrict the rotation of the T-shaped nut.

[0016] Furthermore, the mounting plate has a mounting countersunk hole for mounting the battery under test on the side near the probe assembly; the mounting plate also has a clearance groove located within the mounting countersunk hole.

[0017] Furthermore, the mounting countersunk hole is a multi-stage stepped hole with the radius decreasing sequentially in the depth direction.

[0018] Furthermore, the substrate is provided with a limiting block located between the sliding seat and the probe assembly, and the limiting block is provided with an arc-shaped groove for abutting the circumferential side of the test battery.

[0019] Furthermore, the substrate has two electrode adapter plates on the side facing away from the probe assembly, and the substrate has clearance holes for routing wires to connect the probe assembly to the two electrode adapter plates respectively.

[0020] Furthermore, the substrate has fixing plates at both ends on the side facing away from the probe assembly; the fixing plates have an L-shaped structure, and a connection hole is provided on the bottom edge of the fixing plate away from the substrate.

[0021] Furthermore, a mounting plate is provided with a wiring channel and a protective coil located within the wiring channel.

[0022] The beneficial effects of this utility model include: 1. A slide rail is provided on the substrate, so that the sliding seat is adjustable on the slide rail along the slide rail axis to adjust the installation position of the battery to be tested. The telescopic mechanism is provided on the substrate opposite to the sliding seat to telescopically move the probe assembly, so that the probe assembly can reach the positive and negative terminals of the battery to be tested after the battery to be tested is placed. The sliding seat and the telescopic mechanism work together to greatly increase the adjustable range of the distance between the sliding seat and the probe assembly, which is suitable for batteries of different specifications. When the substrate is set vertically, the battery can be tested in a standing position, which has high versatility.

[0023] The telescopic mechanism uses a quick-release clamp to be mounted on the substrate via a fixed base. It has a simple structure and low cost. The push plate can be guided to move linearly by sliding through the telescopic end via a guide rod, thereby providing guidance for the reciprocating movement of the probe assembly and avoiding movement deviation that prevents it from reaching the positive and negative terminals of the battery under test.

[0024] The mounting plate and the push plate are connected by multiple connecting posts, leaving a gap between them to allow the first and second probes to pass through the mounting plate. This facilitates the connection of the probe ends to the positive and negative terminals of the battery under test and the electrical testing equipment, respectively. The two guide rods guide the push plate to move more stably.

[0025] The slide rail structure is simple and saves materials; two parallel slide rails can provide guidance for the sliding seat and provide higher stability.

[0026] The sliding base has a mounting hole corresponding to the sliding groove. After sliding adjustment, it is fixed to the base plate by fastening bolts, which is convenient to use. The battery to be tested is installed by the base plate abutting against it, which is simple in structure.

[0027] The T-nut is slidably positioned in the groove and is limited in the vertical direction by the base plate, which makes it easy to adjust the position after loosening the fastening bolt and then tighten it again; the T-nut is limited by the side wall of the groove to prevent it from rotating when the fastening bolt is tightened, making it convenient to use.

[0028] The base plate has mounting countersunk holes to facilitate the insertion and installation of the battery to be tested, and provides a certain positioning function; the clearance groove can avoid the pressure relief valve port of the cylindrical battery on the same side with a pressure relief valve at the bottom;

[0029] The limiting block and its arc-shaped groove can limit the battery under test during standing test to prevent it from tilting or falling over, and can support the battery under test during lying test.

[0030] Two electrode adapter plates are provided on the back side of the substrate. The probe assembly and the two electrode adapter plates are connected by routing through the wire avoidance hole, so that no extra connection wires are exposed, making it neater and more beautiful.

[0031] The testing device can be fixed horizontally or vertically using the L-shaped fixing plate and its connecting holes, making it convenient to select for lying-down and standing battery testing, and easy to use.

[0032] The same-side electrode cylindrical battery testing device designed in this utility model has an adjustable sliding seat set by a slide rail, which, together with a telescopic mechanism, drives the probe assembly to move. This greatly increases the adjustment range of the distance between the probe assembly and the sliding seat, making it suitable for batteries of different specifications. When the substrate is set vertically, the battery can be tested in a standing position, which has high versatility. Attached Figure Description

[0033] Figure 1: A three-dimensional structural schematic diagram of the same-side electrode cylindrical battery testing device;

[0034] Figure 2 : Another perspective three-dimensional structural schematic diagram of the same-side electrode cylindrical battery test device;

[0035] Figure 3 : A bottom-view three-dimensional structural diagram of the same-side electrode cylindrical battery testing device;

[0036] Figure 4 : A schematic diagram of the structure of the cylindrical battery with same-side electrodes in this test device;

[0037] Figure 5 : A schematic diagram of the front structure of this same-side electrode cylindrical battery testing device;

[0038] Figure 6 : A schematic diagram of the back structure of this same-side electrode cylindrical battery test device;

[0039] Figure 7 : A schematic diagram of the three-dimensional structure of the substrate;

[0040] Figure 8 : A three-dimensional structural diagram of the substrate viewed from below;

[0041] Figure 9 : A three-dimensional structural diagram of the mounting base;

[0042] Figure 10 : Structural diagram of the push plate;

[0043] Wherein: 1-Base plate; 11-Fixing plate; 111-Connecting hole; 12-Slide groove; 13-Wire tie bridge; 14-Pressure stud; 15-Reinforcing flap; 16-Avoidance hole; 2-Telescopic mechanism; 21-Quick pull clamp; 22-Fixing base; 221-First side; 2211-First bolt hole; 222-Second side; 2221-Pull clamp hole; 2222-Second bolt hole; 2223-Third bolt hole; 23-Push plate; 231-Fourth bolt hole; 232-Guide sliding hole; 233-Fifth bolt hole; 24-Connecting post; 25-Guide rod; 3-Limiting block; 4-Sliding seat; 41-Seat plate; 411-Mounting countersunk hole; 42-Limiting pad; 43-Slide plate; 5-Electrode adapter plate; 51-Screw; 52-Threaded hole; 6-Probe assembly; 61-First probe; 62-Second probe; 63-Mounting plate; 7-Coil guard; 8-T-nut. Detailed Implementation

[0044] The embodiments of this utility model are described in detail below, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary. The drawings are not drawn to scale and are intended to explain this utility model, and should not be construed as limiting this utility model.

[0045] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0046] 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 at least two, such as two, three, etc., unless otherwise explicitly specified.

[0047] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0048] This utility model relates to a cylindrical battery testing device with same-side electrodes, used to install the battery under test. The installation position of the battery under test is adjusted by a sliding seat 4 that is adjustable via a slide rail. A telescopic mechanism 2 is mounted on a substrate 1 opposite to the sliding seat 4 to extend and move the probe assembly 6, so that the probe assembly 6 can reach the positive and negative terminals of the battery under test after the battery is placed. The sliding seat 4 and the telescopic mechanism 2 work together to greatly increase the adjustable range of the distance between the sliding seat 4 and the probe assembly 6, which is suitable for batteries of different specifications. When the substrate 1 is set vertically, the battery can be tested in a standing position, which has high versatility.

[0049] A testing device for cylindrical batteries with electrodes on the same side, specifically, as follows: Figure 1-10As shown, the device includes a substrate 1, a sliding seat 4, a telescopic mechanism 2, and a probe assembly 6. The substrate 1 has a slide rail aligned with the length of the battery. The sliding seat 4 is axially adjustable along the slide rail and is used to receive and mount the battery under test. The fixed end of the telescopic mechanism 2 is located on the substrate 1, and the telescopic end can extend and retract along the height of the battery under test. This allows the probe assembly 6 to move and contact or disconnect the positive and negative terminals of the battery under test. The probe assembly 6 is located at the telescopic end of the telescopic mechanism 2, opposite to the sliding seat 4. After extending and retracting with the telescopic mechanism 2, it contacts or separates from the positive and negative terminals of the battery under test. During standing testing, the substrate 1 is vertically positioned. The position of the sliding seat 4 is adjusted to suit the battery under test. The bottom of the battery is placed on the sliding seat 4, and the telescopic mechanism 2 presses down on the probe assembly 6 to contact the positive and negative electrodes of the battery under test, thus achieving power-on testing. This method is convenient to use. While the probe assembly 6 has a limited range of movement, the sliding seat 4, in conjunction with the probe assembly 6, allows for significant adjustment of the battery's mounting range.

[0050] In one embodiment, such as Figure 1-2 As shown, the telescopic mechanism 2 includes a fixed base 22 on the base plate 1, a quick-release clamp 21 on the fixed base 22, and a guide rod 25; the telescopic end of the quick-release clamp 21 is provided with a push plate 23; the guide rod 25 slides through the push plate 23 along the length direction of the battery under test; the probe assembly 6 is disposed on the push plate 23. The guide rod 25 sliding through the push plate 23 provides a guiding function, preventing movement deviation from reaching the positive and negative terminals of the battery under test, and also provides stability for movement.

[0051] like Figure 7 As shown, a reinforcing flap 15 is provided on the base plate 1. The reinforcing flap 15 abuts against the side wall of the fixing seat 22 and is bolted to it. The fixing seat 22 has an L-shaped structure. The bottom edge of the fixing seat 22 is bolted to the base plate 1. The reinforcing flap 15 abuts against the side wall of the fixing seat 22 opposite to its bottom edge, thereby improving the connection strength between the fixing seat 22 and the base and positioning and installing the fixing seat 22.

[0052] like Figure 2 and Figure 5 As shown, the probe assembly 6 preferably has elastic probes that can absorb the movement tolerance of the telescopic end of the quick-release clip 21 after contacting the positive and negative terminals of the battery being tested. The probe assembly 6 includes a mounting plate 63, a first probe 61 disposed on the mounting plate 63, and two second probes 62. The mounting plate 63 is insulated; preferably, the second probes 62 are located on both sides of the first probe 61. Alternatively, the first probe 61 and the second probes 62 can also be directly disposed on the push plate 23.

[0053] Based on the probe assembly 6, including the mounting plate 63, such as Figure 1-2As shown, the probe assembly 6 (mounting plate 63) is spaced apart from the push plate 23, and the push plate 23 is fixedly connected to it by multiple connecting posts 24; one end of each of the two guide rods 25 is fixed on the fixing base 22, and they are spaced apart. This gap between the mounting plate 63 and the push plate 23 allows the first probe 61 and the second probe 62 to pass through the mounting plate 63, facilitating connection of the probe ends to the positive and negative terminals of the battery under test and the electrical testing equipment, respectively; the two guide rods 25 also provide greater stability in guiding the movement of the push plate 23.

[0054] In some embodiments, such as Figure 2 , Figure 5-6 As shown, the substrate 1 is provided with a sliding groove 12, which serves as the aforementioned slide rail. The structure is simple and can reduce the amount of material used. There are two parallel sliding grooves 12. The sliding seat 4 is slidably disposed on the two parallel sliding grooves 12.

[0055] Based on the slide groove 12 as the aforementioned slide rail, such as Figure 1-2 As shown, the sliding seat 4 includes a sliding plate 43 and a seat plate 41 disposed on the sliding plate 43. The sliding plate 43 is provided with a fixing hole corresponding to the sliding groove 12. A fastening bolt passing through the sliding groove 12 is provided in the fixing hole for bolting and fixing to the base plate 1 after the sliding groove 12 is axially adjusted.

[0056] In a specific plan, such as Figure 3 and Figure 6 As shown, a T-nut 8 (which can be inverted) with a fastening bolt is slidably disposed in the slide groove 12. The length of the T-nut 8 is less than the depth of the slide groove 12. The lower end of the T-nut 8 is located on the back side of the substrate 1 and is positioned by the substrate 1 in the direction perpendicular to the substrate 1. The fastening bolt passes through the fixing hole and is screwed into the T-nut 8 to achieve a fixed connection. Loosening the fastening bolt allows the position of the sliding seat 4 to be slidably adjusted. Maintaining the connection with the T-nut prevents the T-nut from falling off. Preferably, the part of the T-nut 8 embedded in the slide groove 12 abuts against the side wall of the slide groove 12 to restrict the rotation of the T-nut 8, which facilitates the rotation of the fastening bolt. This design makes both adjustment and fixing very convenient.

[0057] In addition, the fixing hole may be provided with internal thread, and the fastening bolt passes through the slide groove 12 on the back side of the substrate 1 and is screwed into the fixing hole.

[0058] The sliding seat 4 includes a sliding plate 43 and a seat plate 41 disposed on the sliding plate 43, such as Figure 1 As shown, the base plate 41 has a mounting countersunk hole 411 for mounting the battery under test on the side near the probe assembly 6. The bottom end of the battery under test can be inserted into the mounting countersunk hole 411 for approximate positioning. The base plate 41 has a clearance groove located in the mounting countersunk hole 411. The clearance groove can be used to avoid the pressure relief valve port of the cylindrical battery on the same side with a pressure relief valve at the bottom.

[0059] In a specific plan, such as Figure 9As shown, the fixing base 22 has an L-shaped structure. The first side 221 at the bottom of the fixing base 22 is provided with a first bolt hole 2211 for bolting to the base plate 1; the second side 222 is provided with a pull clip hole 2221 for fixing the quick pull clip 21; the second side 222 is provided with two second bolt holes 2222 for bolting to two guide rods 25 respectively; the second side 222 is provided with a third bolt hole 2223 for bolting to the reinforcing flap 15.

[0060] In a specific plan, such as Figure 10 As shown, the push plate 23 is provided with two guide sliding holes 232, and two guide rods 25 are respectively slidably inserted into the two guide sliding holes 232; the push plate 23 is provided with a fourth bolting hole 231 for bolting the telescopic rod of the quick pull clamp 21; the push plate 23 is provided with a fifth bolting hole 233 for bolting the connecting column 24.

[0061] Preferably, a limiting pad 42 is provided on the side of the base plate 41 facing the probe assembly 6, and the limiting pad 42 is provided with the aforementioned mounting countersunk hole 411; the clearance groove passes through the limiting pad 42 and the base plate 41.

[0062] Optionally, the mounting hole 411 is a multi-stage stepped hole with the radius decreasing sequentially in the depth direction, which can accommodate the insertion of various battery sizes and specifications.

[0063] In one embodiment, such as Figure 1-4 As shown, a limiting block 3 is provided on the substrate 1 between the sliding seat 4 and the probe assembly 6. The limiting block 3 has an open arc-shaped groove for abutting the circumferential side of the battery under test. During standing testing, it can limit the battery under test to prevent tilting or falling over, and during lying testing, it can support the battery under test.

[0064] In one embodiment, such as Figure 3 As shown, two electrode adapter plates 5 are provided on the side of the substrate 1 facing away from the probe assembly 6. The substrate 1 has wire-avoidance holes 16 for routing wires to connect the probe assembly 6 to the two electrode adapter plates 5 respectively, avoiding the exposure of excess connecting wires and resulting in a cleaner and more aesthetically pleasing appearance. Specifically, the substrate 1 has two clamping studs 14, and the two ends of the electrode adapter plate 5 are bolted to the two clamping studs 14. The screw 51 shown in the figure rotates through the electrode adapter plate 5 and screws onto the clamping studs 14. The electrode adapter plate 5 has two threaded holes 52, which are respectively connected to the positive OT terminal and the negative OT terminal of the adapter cable.

[0065] Preferably, the substrate 1 has fixed feet at both ends for horizontal or vertical fixation of the substrate 1, suitable for standing or lying tests. Specifically, for example... Figure 1-4As shown, the fixing plate 11 serves as a fixing support and is located at both ends of the side of the substrate 1 facing away from the probe assembly 6. The fixing plate 11 has an L-shaped structure, with the bottom edges of the two fixing plates 11 facing opposite directions. The bottom edge of the fixing plate 11 away from the substrate 1 is provided with a connecting hole 111 to facilitate horizontal and vertical fixing.

[0066] like Figure 1-3 As shown, a mounting plate 11 has a wiring channel and a protective coil 7 located in the wiring channel; the back of the substrate 1 is also provided with several wire tie bridges 13, which are used to tie and fix the test wires of the battery testing equipment to avoid pulling during use, which would cause the connection to loosen and affect the test.

[0067] In actual use, a fixed base 22 is fixed on the base plate 1, and a quick-release clamp 21 is inserted through the fixed base 22. The telescopic end of the quick-release clamp 21 is fixedly connected to a push plate 23. The fixed base 22 is provided with two guide rods 25 that slide through the push plate 23. The push plate 23 is fixedly connected to a mounting plate 63 through four connecting posts 24. A first probe 61 and a second probe 62 are inserted through the mounting plate 63. Two spaced sliding grooves 12 are inserted through the base plate 1. A seat plate 41 is provided on the slide plate 43. The seat plate 41 is provided with a mounting countersunk hole 411. The slide plate 43 is provided with a fixing hole corresponding to the sliding groove 12. A T-nut 8 is inserted into the fixing hole corresponding to the sliding groove 12. A connecting T-nut is provided in the fixing hole. Fastening bolts; a limiting block 3 is provided on the base plate 1 between the probe assembly 6 and the sliding seat 4, and the limiting block 3 has an open arc-shaped groove; a clearance wire hole 16 is provided on the base plate 1, and two electrode adapter plates 5 are bolted to the back side of the base plate 1 by a press-fit stud 14; L-shaped fixing plates 11 are provided at both ends of the back side of the base plate 1, and a connecting hole 111 is provided on the bottom edge of the fixing plate 11, and a guard coil 7 is provided on one fixing plate 11; the probe assembly 6 is connected to the two electrode adapter plates 5 through the clearance wire hole 16, and the test wires of the battery testing equipment end are passed through the guard coil 7 and connected to the two electrode adapter plates 5 respectively, and are tied with a wire tie bridge 13, which is neat and beautiful.

[0068] This testing device uses an adjustable sliding seat 4 via a slide rail, which, together with the telescopic mechanism 2, moves the probe assembly 6. This greatly increases the range of adjustment for the distance between the probe assembly 6 and the sliding seat 4, making it suitable for batteries of different specifications. When the substrate 1 is set vertically, it can be used for standing battery testing, or it can be fixed horizontally for lying-down testing, thus having high versatility.

[0069] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A testing device for cylindrical batteries with electrodes on the same side, characterized in that: include, A substrate (1) is provided with a slide rail; The sliding seat (4) is slidably mounted on the slide rail along the slide rail axis and is used to support the battery to be tested. Telescopic mechanism (2), the fixed end of the telescopic mechanism (2) is provided on the base plate (1), and the telescopic end can extend and retract along the height direction of the battery to be tested; The probe assembly (6) is located at the telescopic end of the telescopic mechanism (2) opposite to the sliding seat (4), and after telescopic extension, it contacts or separates from the positive and negative electrodes of the battery to be tested.

2. The same-side electrode cylindrical battery testing device as described in claim 1, characterized in that: The telescopic mechanism (2) includes a fixed seat (22) on the base plate (1), a quick pull clamp (21) on the fixed seat (22), and a guide rod (25); the telescopic end of the quick pull clamp (21) is provided with a push plate (23); the guide rod (25) slides through the push plate (23) along the length direction of the battery to be tested; the probe assembly (6) is provided on the push plate (23).

3. The same-side electrode cylindrical battery testing device as described in claim 2, characterized in that: The probe assembly (6) is spaced apart from the push plate (23), and the push plate (23) is fixedly connected by multiple connecting posts (24); one end of each of the two guide rods (25) is fixed on the fixed seat (22), and they are spaced apart.

4. A cylindrical battery testing device with electrodes on the same side as described in any one of claims 1-3, characterized in that: The substrate (1) is provided with a slide groove (12) as a slide rail; there are two parallel slide grooves (12); the sliding seat (4) is slidably disposed on the two parallel slide grooves (12).

5. The same-side electrode cylindrical battery testing device as described in claim 4, characterized in that: The sliding seat (4) includes a sliding plate (43) and a seat plate (41) provided on the sliding plate (43). The sliding plate (43) is provided with a fixing hole corresponding to the sliding groove (12). A fastening bolt passing through the sliding groove (12) is provided in the fixing hole for bolting and fixing to the base plate (1) after the sliding groove (12) is axially adjusted.

6. The same-side electrode cylindrical battery testing device as described in claim 5, characterized in that: The groove (12) is provided with a T-nut (8) that is fitted with a fastening bolt. The lower end of the T-nut (8) is located on the back side of the substrate (1) and is limited by the substrate (1) in the direction perpendicular to the substrate (1). The part of the T-nut (8) embedded in the groove (12) abuts against the side wall of the groove (12) to restrict the rotation of the T-nut (8).

7. The same-side electrode cylindrical battery testing device as described in claim 5, characterized in that: The base plate (41) has a mounting countersunk hole (411) for mounting the battery under test on the side near the probe assembly (6); the base plate (41) has a clearance groove located in the mounting countersunk hole (411).

8. The same-side electrode cylindrical battery testing device as described in claim 1, characterized in that: The substrate (1) is provided with a limiting block (3) located between the sliding seat (4) and the probe assembly (6), and the limiting block (3) is provided with an arc-shaped groove for abutting the circumferential side of the test battery.

9. The same-side electrode cylindrical battery testing device as described in claim 1, characterized in that: The substrate (1) has two electrode adapter plates (5) on the side facing away from the probe assembly (6). The substrate (1) has a wire avoidance hole (16) for wiring to connect the probe assembly (6) to the two electrode adapter plates (5) respectively.

10. The same-side electrode cylindrical battery testing device as described in claim 1, characterized in that: The substrate (1) has fixing plates (11) at both ends on the side facing away from the probe assembly (6); the fixing plates (11) are L-shaped, and the bottom edge of the fixing plate (11) away from the substrate (1) has a connecting hole (111); a wiring channel and a guard coil (7) located in the wiring channel are provided on a fixing plate (11).

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