A 0BB ​​battery IV characteristic test device

Abstract

The present invention discloses a 0BB battery IV characteristic testing device, which relates to the field of solar cell detection technology. The device comprises a rack and several pairs of connecting seats, each pair of which is slidably mounted on both sides of the top surface of the rack. A probe row is installed between each pair of connecting seats. A positioning mechanism is installed in the connecting seat. An anti-slip pad is installed at the bottom of the positioning mechanism. An anti-loosening abutment ring that abuts against the positioning mechanism is elastically installed in the connecting seat. A non-return indicator mechanism that is elastically inserted on the outer side of the connecting seat and obliquely abuts against the side wall of the anti-loosening abutment ring is inserted. When the positioning mechanism is adjusted to tighten the anti-slip pad against the rack, the positioning mechanism abuts against the anti-loosening abutment ring. The present invention fixes the connecting seat by providing a positioning mechanism. When the positioning mechanism is tightened, the anti-loosening abutment ring is gradually squeezed. At this time, the friction between the anti-loosening abutment ring and the positioning mechanism gradually increases, and the anti-loosening abutment ring prevents the positioning mechanism from loosening.

Description

Technical Field

[0001] The present invention relates to the technical field of solar cell detection, and in particular to an 0BB battery IV characteristic testing device. Background Art

[0002] In addition to conventional front-side busbar batteries, many new busbar-free batteries have appeared on the market, including 0BB batteries. Their busbar-free design reduces light absorption loss caused by busbar covering, reduces series resistance loss, and reduces dark saturation current and open-circuit voltage loss, thereby improving battery efficiency. Before leaving the factory, current-voltage (IV) characteristic testing is a key step in evaluating battery performance.

[0003] The patent publication number of the existing patent application is: CN217332568U, and the publication date is August 30, 2022. The name of the patent is "A probe row, arrangement assembly and battery cell testing device". The patent includes several probe rows, all of which are arranged in parallel and at intervals. The probe row includes a long support member and several probes. One end of each probe is connected to the support member, and the pressing end of the other end extends in the same direction away from the support member. All probes are arranged in rows along the length direction of the support member. The pressing ends of the probes in the same row are connected in sequence by pressing fasteners, and the pressing fasteners are insulated. The battery cell testing device includes a frame and two groups of probe arrangement assemblies installed on the frame. The two groups of probe arrangement assemblies are arranged up and down and can be lifted and moved. The probe row, arrangement assembly and battery cell testing device achieve stable and accurate testing of battery cells without increasing the area blocked by the battery cells.

[0004] The above application has shortcomings. The probe row is fixed to the rack by simple bolts or clips, which are prone to displacement after long-term vibration or frequent adjustment, resulting in poor contact between the probe and the battery, affecting the accuracy of IV characteristic testing. If an anti-slip gasket is installed at the bottom of the bolt, its wear degree is difficult to monitor. The thickness decreases after long-term pressure wear. There is a lack of real-time wear detection mechanism, and it is difficult for operators to replace it in time, which leads to the risk of contact failure. In addition, the anti-loosening structure is complex and unreliable, and the elastic element is prone to fatigue, resulting in a gradual decrease in the anti-loosening effect. Summary of the Invention

[0005] The object of the present invention is to provide a device for testing the IV characteristics of an 0BB battery to address the deficiencies in the above-mentioned prior art.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A 0BB ​​battery IV characteristic testing device includes a rack and several pairs of connecting seats, each pair of connecting seats being slidably mounted on both sides of the top surface of the rack, a probe row being installed between each pair of connecting seats, a positioning mechanism being installed in the connecting seat, an anti-slip gasket being installed at the bottom of the positioning mechanism, an anti-loosening abutting ring being elastically mounted in the connecting seat and abutting against the positioning mechanism, a non-return indicating mechanism being elastically inserted on the outer side of the connecting seat and obliquely abutting against the side wall of the anti-loosening abutting ring, when the positioning mechanism is adjusted to press the anti-slip gasket against the rack, the positioning mechanism abuts against the anti-loosening abutting ring, and the non-return indicating mechanism is pressed against the anti-loosening abutting ring to cause it to extend, thereby judging the wear degree of the anti-slip gasket.

[0008] Preferably, a row of current probes and a row of voltage probes are installed on the probe row, and the current probes and voltage probes are arranged at intervals from each other. Silver bars are respectively installed at the bottom of the row of current probes and the row of voltage probes, and the two silver bars are in a cross-finger shape.

[0009] Preferably, a pair of mutually parallel sliding grooves are provided on the rack, the bottom of the connecting seat is inserted into the sliding grooves, and a receiving groove is provided at the bottom of the connecting seat, a pair of limiting abutment blocks are elastically connected in the receiving groove, the anti-slip gasket is located between the pair of limiting abutment blocks, and the two sides of the anti-slip gasket are respectively abutted and cooperated with each limiting abutment block.

[0010] Preferably, the positioning mechanism includes an adjusting screw vertically inserted in the connecting seat, the bottom of the adjusting screw is rotatably connected to the anti-slip gasket, a sleeve is provided on the outer fixed sleeve of the adjusting screw, and a movable cavity matching the sleeve is vertically opened on the connecting seat.

[0011] Preferably, the anti-loosening abutment ring is located inside the movable cavity, and a top spring is fixedly connected between the bottom surface of the anti-loosening abutment ring and the bottom of the movable cavity, and the top surface of the anti-loosening abutment ring is in friction contact with the bottom end of the sleeve.

[0012] Preferably, the non-return indicating mechanism includes a horizontally movably inserted cross bar in the connecting seat, a connecting spring is installed between the cross bar and the connecting seat, one end of the cross bar is abutted against the side wall of the anti-loosening abutment ring under the action of the connecting spring, and the other end of the cross bar is located on the outside of the connecting seat, a limiting rod is slidably installed on the outside of the connecting seat, the bottom of the limiting rod is overlapped on the cross bar, and a non-return tooth matching the bottom of the limiting rod is horizontally installed on the cross bar.

[0013] Preferably, the anti-loosening abutment ring comprises a frustum section and a columnar section distributed up and down, and the top surface of the anti-loosening abutment ring is provided with an anti-slip pad layer.

[0014] Preferably, both sides of the top of the rack are rotatably mounted with limiting shafts, and both ends of the probe row are respectively provided with slots adapted to the two limiting shafts.

[0015] Preferably, an anti-loosening pressing piece is installed on one side of the inner wall of the slot, one end of the anti-loosening pressing piece is located inside the slot, and an abutment groove matching the limiting shaft rod is axially opened on the side wall of the limiting shaft rod.

[0016] Preferably, a brake strip is horizontally and movably embedded in the connecting seat, and the contact surfaces of the other end of the anti-loosening pressing member, the brake strip and the positioning mechanism are all on the same horizontal line.

[0017] In the above technical solution, a positioning mechanism is provided to fix the connecting seat. When the positioning mechanism is tightened, the anti-loosening abutment ring will be gradually squeezed. At this time, the friction between the anti-loosening abutment ring and the positioning mechanism will gradually increase. The elastic support of the anti-loosening abutment ring will generate a reaction force to prevent the positioning mechanism from loosening. At the same time, when the anti-slip gasket at the bottom of the positioning mechanism is worn and the positioning mechanism needs to be further tightened and lowered, the anti-loosening abutment ring is continuously pressurized and pushes the non-return indicator mechanism to extend outward. The degree of wear is visually indicated by the exposed length. The operator can quickly judge the replacement time of the anti-slip gasket, avoid contact failure caused by excessive wear, extend the service life of the device, solve the problems of unstable positioning, difficult wear measurement, and cumbersome maintenance of traditional devices, achieve improved test accuracy, extended service life and optimized operating efficiency, and is particularly suitable for the IV characteristic test needs of high-precision 0BB batteries.

[0018] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

[0019] This application document provides an overview of various implementations or examples of the technology described in this disclosure, and is not a comprehensive disclosure of the full scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0021] Figure 1 Schematic diagram of the overall structure of a 0BB battery IV characteristic test device of the present invention;

[0022] Figure 2 This is a schematic diagram of the connection between the connecting seat and the limiting shaft in a 0BB battery IV characteristic test device of the present invention;

[0023] Figure 3 For the present invention Figure 2 A magnified view of point A;

[0024] Figure 4 This is a schematic diagram of the connection between the probe row and the connector in a 0BB battery IV characteristic test device of the present invention;

[0025] Figure 5 This is a schematic diagram of the connection between the probe row and the connector in a 0BB battery IV characteristic test device of the present invention;

[0026] Figure 6 For the present invention Figure 5 Enlarged view of point B;

[0027] Figure 7 Schematic diagram of the structure of a probe row in a 0BB battery IV characteristic test device of the present invention;

[0028] Figure 8 This is a schematic diagram of the internal structure of a connector in a 0BB battery IV characteristics testing device of the present invention;

[0029] Figure 9 This is a bottom view of the connector in a 0BB battery IV characteristics testing device of the present invention.

[0030] Description of reference numerals:

[0031] 1. Rack; 11. Slide; 12. Limiting shaft; 13. Abutment groove; 14. Gear ring; 15. Limiting column; 2. Connecting seat; 21. Accommodating groove; 22. Limiting abutment block; 23. Braking strip; 24. Abutment inclined groove; 25. Tension spring; 3. Probe row; 31. Current probe; 32. Voltage probe; 33. Silver bar; 35. Slot; 4. Positioning mechanism; 41. Adjusting screw; 42. Sleeve; 43. Movable cavity; 5. Anti-skid gasket; 6. Anti-loosening abutment ring; 61. Top spring; 62. Cone section; 63. Columnar section; 64. Anti-skid pad; 7. Check indicator mechanism; 71. Cross bar; 72. Connecting spring; 73. Limiting rod; 74. Check tooth; 8. Anti-loosening pressure piece; 81. Fan-shaped abutment plate; 82. Push rod. DETAILED DESCRIPTION

[0032] To make the purpose, technical solutions, and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0033] See also Figure 1-9A BB battery IV characteristic testing device provided by an embodiment of the present invention includes a rack 1 and several pairs of connecting seats 2, each pair of connecting seats 2 being slidably mounted on both sides of the top surface of the rack 1, a probe row 3 being mounted between each pair of connecting seats 2, and a positioning mechanism 4 being mounted in the connecting seat 2. A non-slip pad 5 is mounted at the bottom of the positioning mechanism 4, an anti-loosening abutting ring 6 elastically mounted in the connecting seat 2 and abutting against the positioning mechanism 4, a non-return indicating mechanism 7 elastically inserted on the outer side of the connecting seat 2 and obliquely abutting against the side wall of the anti-loosening abutting ring 6, when the positioning mechanism 4 is adjusted to press the anti-slip pad 5 against the rack 1, the positioning mechanism 4 abuts against the anti-loosening abutting ring 6, and the non-return indicating mechanism 7 is pressed by the anti-loosening abutting ring 6 to extend it, thereby judging the wear degree of the anti-slip pad 5.

[0034] Specifically, the rack 1 is a long strip frame structure, and several pairs of connecting seats 2 are respectively movable on the rack 1. The two connecting seats 2 in each pair are respectively located on both sides of the rack 1 and can slide along the length direction of the rack 1. They are fixed as a whole through a transversely connected probe row 3. Multiple groups of test probes are arranged on the probe row 3 to contact the battery surface. The positioning mechanism 4 is vertically installed in the connecting seat 2, and an anti-slip gasket 5 is installed at the bottom to increase the friction force with the contact surface of the rack 1. When the positioning mechanism 4 is tightened, the anti-slip gasket 5 is pressed against the surface of the rack 1, thereby fixing the position of the connecting seat 2. The anti-loosening abutment ring 6 is elastically installed inside the connecting seat 2 through an elastic member, and can contact and tighten with the positioning mechanism 4 from the bottom. When the positioning mechanism 4 is tightened and pressed down, it can contact the top surface of the anti-loosening abutment ring 6, forming a friction force. It is self-locking to prevent the positioning mechanism 4 from retreating and loosening. The non-return indicator mechanism 7 is horizontally inserted in the connecting seat 2, and its inner end contacts the inclined side wall of the anti-loosening abutment ring 6. When the anti-loosening abutment ring 6 is displaced due to the downward pressure of the positioning mechanism 4, the outer end of the non-return indicator mechanism 7 extends outward, and the extension length is proportional to the degree of wear of the anti-slip gasket 5. When the anti-slip gasket 5 is worn and thinned, the positioning mechanism 4 needs to be further tightened to maintain the fixing force. At this time, the anti-loosening abutment ring 6 moves downward to push the non-return indicator mechanism 7 to extend outward. The operator can judge the wear state by observing the extension length and replace the anti-slip gasket 5 in time. The connecting seat 2 achieves double positioning through the friction between the anti-slip gasket 5 and the positioning mechanism 4 and the anti-loosening abutment ring 6, ensuring that the probe row 3 is in stable contact with the battery surface and avoiding signal fluctuations caused by displacement during the test.

[0035] Compared with the prior art, the embodiment of the present invention fixes the connecting seat 2 by providing a positioning mechanism 4. When the positioning mechanism 4 is tightened, the anti-loosening abutment ring 6 will be gradually squeezed. At this time, the friction between the anti-loosening abutment ring 6 and the positioning mechanism 4 will gradually increase. The elastic support of the anti-loosening abutment ring 6 will generate a reaction force to prevent the positioning mechanism 4 from loosening. At the same time, when the anti-slip gasket 5 at the bottom of the positioning mechanism 4 is worn and the positioning mechanism 4 needs to be further tightened and lowered, the anti-loosening abutment ring 6 is continuously pressurized and pushes the non-return indicator mechanism 7 to extend outward. The degree of wear is intuitively indicated by the exposed length. The operator can quickly judge the replacement time of the anti-slip gasket 5, avoid contact failure caused by excessive wear, and extend the service life of the device. It solves the problems of unstable positioning, difficult wear measurement, and cumbersome maintenance of traditional devices, and achieves improved test accuracy, extended service life and optimized operating efficiency. It is particularly suitable for the IV characteristic test requirements of high-precision BB batteries.

[0036] In a further technical solution of the present invention, a row of current probes 31 and a row of voltage probes 32 are installed on the probe row 3. The current probes 31 and the voltage probes 32 are arranged at intervals from each other. Silver bars 33 are respectively installed at the bottom of the row of current probes 31 and the row of voltage probes 32. The two silver bars 33 are in a cross-finger shape. Specifically, on the basis of the existing IV probe row 3, two cross-finger silver bars 33 are welded at the end of the probe to collect current and voltage separately and independently. This can enhance the current collection capability of the BB battery grid line and improve the accuracy of the BB battery IV test.

[0037] In a further technical solution of the present invention, a pair of mutually parallel slides 11 are provided on the rack 1, and the cross-section of the slide 11 is inverted T-shaped. The bottom of the connecting seat 2 is inserted into the slide 11, and the bottom of the connecting seat 2 is provided with a receiving groove 21, and a pair of limiting abutment blocks 22 are elastically connected in the receiving groove 21. A pair of tension springs 25 are installed between the two limiting abutment blocks 22, and the anti-slip gasket 5 is located between the pair of limiting abutment blocks 22. The top of the inner side of the two limiting abutment blocks 22 is provided with an abutment inclined groove 24, and the two sides of the anti-slip gasket 5 are respectively abutted and matched with each limiting abutment block 22. Specifically, when the connecting seat 2 needs to be inserted into the slide 11, the positioning mechanism 4 is first loosened to allow the pair of limiting abutment blocks 22 to enter the receiving cavity and be hidden under the action of the tension spring 25, so that the connecting seat 2 can be quickly inserted into the slide 11, which is convenient. Replacement and maintenance of the connecting seat 2. After the connecting seat 2 is inserted into the slide groove 11, the height of the anti-slip pad 5 is adjusted through the positioning mechanism 4, and the anti-slip pad 5 presses the abutment inclined groove 24 on the limit abutment block 22 to make a pair of limit abutment blocks 22 extend synchronously in the accommodating cavity to prevent the connecting seat 2 from escaping from the slide groove 11 when moving with the probe row 3. Then the connecting seat 2 is further fixed, and the positioning mechanism 4 is further tightened to allow the anti-slip pad 5 to be completely pushed out of the limit abutment block 22. First, let the limit abutment blocks 22 on both sides respectively press against the two sides of the inner wall of the slide groove 11, and then let the anti-slip pad 5 itself close to the bottom of the slide groove 11, realizing positioning and anti-deflection in multiple directions, ensuring the reliability of the probe row 3 during operation, ensuring the stability of the clamping force, and thus extending the service life of the anti-slip pad 5.

[0038] The bottom of the adjusting screw 41 is connected to the anti-slip pad 5 by a rotating shaft, and the adjusting screw 41 is fixed with a sleeve 42 on the outside of the adjusting screw 41, and a movable cavity 43 matching the sleeve 42 is vertically opened on the connecting seat 2. Specifically, the adjusting screw 41 vertically passes through the connecting seat 2, and its bottom is connected to the anti-slip pad 5 by a rotating shaft. The width of the anti-slip pad 5 is the same as the width of the accommodating groove 21, ensuring that the anti-slip pad 5 only moves up and down when the screw rotates and does not rotate with it. A knob is provided on the top of the adjusting screw 41 for easy manual rotation operation. The outer diameter of the sleeve 42 fixed on the outer wall of the adjusting screw 41 is slightly smaller than the inner diameter of the movable cavity 43 vertically opened in the connecting seat 2, and the gap between the two is matched. The movable cavity 43 is a cylindrical cavity, which guides the up and down movement of the sleeve 42 and limits its horizontal deviation, ensuring that the anti-slip pad 5 is driven to move vertically during the twisting of the adjusting screw 41.

[0039] In a further technical solution of the present invention, the anti-loosening abutment ring 6 is located inside the movable cavity 43, and a top spring 61 is fixedly connected between the bottom surface of the anti-loosening abutment ring 6 and the bottom of the movable cavity 43. The top surface of the anti-loosening abutment ring 6 is in frictional contact with the bottom end of the sleeve 42. Specifically, the anti-loosening abutment ring 6 is elastically supported by the top spring 61 and is lifted by the top spring 61 under normal circumstances. When the sleeve 42 moves downward synchronously with the adjusting screw 41, the bottom end of the sleeve 42 presses the anti-loosening abutment ring 6 and compresses the top spring 61. At this time, the friction force generated between the top surface of the anti-loosening abutment ring 6 and the sleeve 42 forms a self-locking function, preventing the adjusting screw 41 from retreating due to vibration.

[0040] If the locking cam 72 is engaged, the locking cam 72 will be locked, and the locking cam 72 will be locked if the locking cam 72 is engaged, and the block 72 is locked. When the locking cam 73 is in the unlocked position, the locking cam 73 is in the unlocked position, and the locking cam 73 is in the unlocked position, so that the locking cam 73 is locked and the unlocking cam 73 is in the unlocked position.

[0041] In a further technical solution of the present invention, the anti-loosening abutment ring 6 includes a frustum section 62 and a columnar section 63 distributed in an upper and lower manner, wherein the diameter of the columnar section 63 is smaller than the diameter of the top surface of the frustum section 62, and the top surface of the anti-loosening abutment ring 6 is provided with an anti-slip pad layer 64. Specifically, the anti-slip pad layer 64 is a material with a high friction coefficient, such as rubber or polyurethane, and is embedded in the top surface of the anti-loosening abutment ring 6 by screws, and is in direct contact with the bottom end of the sleeve 42. When the adjusting screw 41 and the sleeve 42 are lowered, the anti-slip pad layer 64 is in frictional contact with the bottom end of the sleeve 42, and self-locking and anti-loosening are formed by friction. At the same time, the main body of the anti-loosening abutment ring 6 is composed of the frustum section 62 and the columnar section 63 distributed in an upper and lower manner, and the frustum section 62 is provided with an anti-slip pad layer 64. Located at the upper part, the side wall is an inclined conical surface. When the wear degree of the anti-slip gasket 5 does not reach the replacement standard, the cross bar 71 is inserted into one end of the movable cavity 43 and abuts against the columnar section 63. When the wear degree of the anti-slip gasket 5 gradually increases, the further tightening of the adjusting screw 41 will allow the inclined surface of the frustum section 62 of the anti-loosening abutment ring 6 to push the cross bar 71 outward. The wear of the anti-slip pad layer 64 is reflected by the outward extension length of the cross bar 71. The inclined surface design of the frustum section 62 converts vertical pressure into horizontal displacement of the cross bar 71, realizing a linear amplification indication of the wear amount, so that the staff can clearly monitor the anti-slip gasket 5 hidden in the connecting seat 2 without disassembling the connecting seat 2.

[0042] In a further technical solution of the present invention, both sides of the top of the rack 1 are rotatably installed with limit shafts 12, and slots 35 that are compatible with the two limit shafts 12 are respectively opened at both ends of the probe row 3. The probe row 3 is also equipped with mounting holes for fixing it and the connecting seat 2 above the slots 35. A gear ring 14 is sleeved on one end of the limit shaft 12, and a limit column 15 that is engaged with the gear ring 14 is movably installed on the rack 1. Specifically, the limit shafts 12 are rotatably installed on both sides of the top of the rack 1 through bearings, and U-shaped slots 35 are respectively provided at both ends of the probe row 3. The inner wall of the slot 35 matches the diameter of the limit shaft 12, and the opening direction of the slot 35 is downward, which is convenient for the probe When the row 3 is pressed vertically downward, it is sleeved on the limiting shaft 12. The probe row 3 has mounting holes just above the slots 35 on both sides. The mounting holes pass through the probe row 3 and are aligned with the screw holes on the connecting seat 2. The probe row 3 and the connecting seat 2 are quickly fixed by passing the bolts through the mounting holes and threaded holes. At the same time, the wrapping effect of the slots 35 on the limiting shaft 12 further prevents the probe row 3 from lateral displacement during the test, ensuring the contact stability of the probes. Before the probe row 3 is installed, the limiting shaft 12 rotated to the appropriate angle can be locked. It is only necessary to plug and match the limiting column 15 and the gear ring 14. This can prevent the limiting shaft 12 from deflecting after being compressed.

[0043] In a further technical solution of the present invention, an anti-loosening pressure piece 8 is installed on one side of the inner wall of the slot 35, one end of the anti-loosening pressure piece 8 is located inside the slot 35, and the side wall of the limiting shaft 12 is axially provided with an abutment groove 13 that matches it. The anti-loosening pressure piece 8 includes a push rod 82 that is movably embedded in the probe row 3, and one end of the push rod 82 is installed with a fan-shaped abutment plate 81 in the slot 35. The fan-shaped abutment plate 81 elastically abuts against the inner wall of the slot 35, and the fan-shaped abutment plate 81 is located in the abutment groove 13. Specifically, when installing the probe row 3, the limiting shaft 12 squeezes the fan-shaped abutment plate 81 during the downward pressing process, causing it to temporarily retract into the slot 35. When the slot 35 of the probe row 3 completely covers the limiting shaft 12, the fan-shaped abutment plate 81 is pushed back to its original position under the action of elastic force and embedded in the abutment groove 13 to form a snap connection, preventing the probe row 3 from shaking and deviating during further installation and fixation, thereby speeding up the efficiency of installation and positioning, and being able to achieve synchronous control of multiple probe rows 3 by rotating the limiting shaft 12, which is easy to operate.

[0044] In a further technical solution of the present invention, a brake strip 23 is horizontally movably embedded in the connecting seat 2, and the contact surface of the other end of the anti-loosening pressure piece 8 and the brake strip 23 and the positioning mechanism 4 are all on the same horizontal line. Specifically, when the positions of multiple probe rows 3 on the rack 1 are all positioned, the limiting shaft 12 is rotated to push the anti-loosening pressure piece 8, so that the outer wall of the limiting shaft 12 and the fan-shaped pressure plate 81 are pressed against each other, and the push rod 82 is pushed by the fan-shaped pressure plate 81 to squeeze the brake strip 23, thereby utilizing the friction between the brake strip 23 and the sleeve 42 to further stabilize the adjusting bolt, so that the probe row 3 on the entire rack 1 is further locked and fixed.

[0045] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims.

Claims

1. A 0BB ​​battery IV characteristic test device, comprising a rack (1), characterized in that: Also includes: A plurality of pairs of connection seats (2), each pair of the connection seats (2) being slidably mounted on both sides of the top surface of the rack (1), and a probe row (3) being mounted between each pair of the connection seats (2); A positioning mechanism (4) is installed in the connecting seat (2), a non-slip gasket (5) is installed at the bottom of the positioning mechanism (4), an anti-loosening abutting ring (6) is elastically installed in the connecting seat (2) and abuts against the positioning mechanism (4), and a non-return indicating mechanism (7) is elastically inserted on the outside of the connecting seat (2) and is in oblique abutment with the side wall of the anti-loosening abutting ring (6); The rack (1) is provided with a pair of mutually parallel slide grooves (11), the bottom of the connecting seat (2) is inserted into the slide grooves (11), and the bottom of the connecting seat (2) is provided with a receiving groove (21), a pair of limit abutment blocks (22) are elastically connected in the receiving groove (21), the anti-slip gasket (5) is located between the pair of limit abutment blocks (22), and both sides of the anti-slip gasket (5) are respectively in abutment with each limit abutment block (22); The positioning mechanism (4) includes an adjusting screw (41) vertically inserted into the connecting seat (2), the bottom of the adjusting screw (41) is rotatably connected to the anti-slip pad (5), a sleeve (42) is fixedly sleeved outside the adjusting screw (41), and a movable cavity (43) matching the sleeve (42) is vertically opened on the connecting seat (2); The anti-loosening abutment ring (6) is located inside the movable cavity (43), and a top spring (61) is fixedly connected between the bottom surface of the anti-loosening abutment ring (6) and the bottom of the movable cavity (43), and the top surface of the anti-loosening abutment ring (6) is in frictional contact with the bottom end of the sleeve (42); The non-return indicating mechanism (7) includes a horizontally movable cross bar (71) inserted into the connecting seat (2), a connecting spring (72) is installed between the cross bar (71) and the connecting seat (2), one end of the cross bar (71) abuts against the side wall of the anti-loosening abutting ring (6) under the action of the connecting spring (72), the other end of the cross bar (71) is located outside the connecting seat (2), a limiting rod (73) is slidably installed outside the connecting seat (2), the bottom of the limiting rod (73) is overlapped on the cross bar (71), and a non-return tooth (74) is horizontally installed on the cross bar (71) to match the bottom of the limiting rod (73); When the positioning mechanism (4) is adjusted to press the anti-slip gasket (5) against the rack (1), the positioning mechanism (4) abuts against the anti-loosening abutting ring (6), and the anti-loosening abutting ring (6) presses the non-return indicating mechanism (7) to extend it, thereby judging the degree of wear of the anti-slip gasket (5).

2. A OBB battery IV characteristic test device according to claim 1, characterized in that, A row of current probes (31) and a row of voltage probes (32) are mounted on the probe row (3), the current probes (31) and the voltage probes (32) being spaced apart from each other, and silver bars (33) are respectively mounted at the bottom of the row of current probes (31) and the row of voltage probes (32), with the two silver bars (33) being in a cross-finger shape.

3. A OBB battery IV characteristic testing device according to claim 1, characterized in that, The anti-loosening abutment ring (6) comprises a frustum section (62) and a columnar section (63) distributed in an upper and lower manner, and the top surface of the anti-loosening abutment ring (6) is provided with an anti-slip cushion layer (64).

4. A OBB battery IV characteristic testing device according to claim 1, characterized in that, Limiting shafts (12) are rotatably mounted on both sides of the top of the rack (1), and slots (35) adapted to the two limiting shafts (12) are respectively provided at both ends of the probe row (3).

5. A OBB battery IV characteristic test device according to claim 4, characterized in that, An anti-loosening pressing piece (8) is installed on one side of the inner wall of the slot (35), one end of the anti-loosening pressing piece (8) is located inside the slot (35), and a matching abutment groove (13) is opened along the axial direction on the side wall of the limiting shaft (12).

6. A OBB battery IV characteristic testing device according to claim 5, characterized in that, A brake strip (23) is embedded in the connecting seat (2) in a horizontally movable manner, and the contact surfaces of the other end of the anti-loosening pressing member (8), the brake strip (23) and the positioning mechanism (4) are all on the same horizontal line.

Images