0BB battery IV characteristic testing device

Abstract

The invention discloses an 0BB battery IV characteristic testing device, and relates to the technical field of solar cell detection, the 0BB battery IV characteristic testing device comprises a framed bent and a plurality of pairs of connecting seats, each pair of connecting seats is slidably mounted on two sides of the top surface of the framed bent, a probe row and a positioning mechanism are mounted between each pair of connecting seats, and the positioning mechanism is mounted in the connecting seats. An anti-skid gasket is installed at the bottom of the positioning mechanism, an anti-loose abutting ring abutting against the positioning mechanism is elastically installed in the connecting base, and a non-return indicating mechanism in inclined abutting fit with the side wall of the anti-loose abutting ring is elastically inserted in the outer side of the connecting base. The positioning mechanism abuts against the anti-loose abutting ring. The connecting base is fixed by arranging the positioning mechanism, in the fastening process of the positioning mechanism, the anti-loose abutting ring is gradually extruded, at the moment, the friction force between the anti-loose abutting ring and the positioning mechanism is gradually increased, and the anti-loose aim is achieved for the positioning mechanism through the anti-loose abutting ring.

Description

Technical Field

[0001] The present invention relates to the technical field of solar cell detection, and particularly to a 0BB battery IV characteristic test device. Background Art

[0002] At present, in the market, in addition to the conventional front-side main-grid batteries, there have emerged many new types of main-grid-free batteries, including 0BB batteries. Through the main-grid-free design, the light absorption loss caused by the main-grid covering is reduced, the series resistance loss is decreased, the dark saturation current and open-circuit voltage loss are reduced, thereby improving the efficiency of the battery. Before leaving the factory, performing the characteristic test of current-voltage (I-V) is a key step in evaluating the 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 this patent is "A Probe Row, Arrangement Assembly and Battery Chip Test Device". This patent includes several probe rows, and all the probe rows are arranged in parallel and at intervals. The probe row includes a long strip-shaped support member and several probes. One end of each probe is connected to the support member, and the pressing end at the other end extends in the same direction away from the support member. All the probes are arranged in a row along the length direction of the support member. The pressing ends of the probes on the same row are sequentially connected through a fastening member, and the fastening members are insulated from each other. The battery chip test 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 both move up and down. The probe row, arrangement assembly and battery chip test device can achieve stable and accurate testing of the battery chip while not increasing the shielding area of the battery chip.

[0004] The above application has deficiencies. The probe row is fixed to the row frame through simple bolts or buckles, and is prone to displacement after long-term vibration or frequent adjustment, resulting in poor contact between the probe and the battery, affecting the accuracy of the IV characteristic test. If an anti-slip gasket is installed at the bottom of the bolt, its wear degree is difficult to monitor. After long-term compression wear, the thickness decreases, lacking a real-time wear detection mechanism, and it is difficult for the operator to replace it in time, leading to the risk of contact failure. Moreover, the anti-loosening structure is complex and unreliable, and the elastic element is prone to fatigue, resulting in a gradual decline in the anti-loosening effect. Summary of the Invention

[0005] The purpose of the present invention is to provide a 0BB battery IV characteristic test device to solve the above deficiencies in the prior art.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] An IV characteristic test device for 0BB batteries, comprising a rack, and further comprising a plurality of pairs of connecting seats. Each pair of the connecting seats is respectively slidably mounted on both sides of the top surface of the rack. A probe row, a positioning mechanism are installed between each pair of the connecting seats. The positioning mechanism is installed in the connecting seat. An anti-slip gasket is installed at the bottom of the positioning mechanism. An anti-loosening abutting ring elastically abutted against the positioning mechanism is installed in the connecting seat. A check indicating mechanism elastically inserted outside the connecting seat and inclinedly abutted against the side wall of the anti-loosening abutting ring is provided. When the positioning mechanism is adjusted to tightly abut the anti-slip gasket against the rack, the positioning mechanism abuts against the anti-loosening abutting ring, and the check indicating mechanism is pressed by the anti-loosening abutting ring to extend out to judge 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. The current probes and the voltage probes are arranged at intervals. Silver bars are respectively installed at the bottoms of a row of the current probes and a row of the voltage probes. The two silver bars are in a finger-crossed shape.

[0009] Preferably, a pair of parallel chutes are opened on the rack. The bottom of the connecting seat is inserted into the chute. A receiving groove is opened at the bottom of the connecting seat. A pair of limiting abutting blocks elastically connected in the receiving groove are provided. The anti-slip gasket is located between the pair of limiting abutting blocks, and both sides of the anti-slip gasket are respectively abutted and matched with the respective limiting abutting blocks.

[0010] Preferably, the positioning mechanism includes an adjusting screw vertically inserted into the connecting seat. The bottom of the adjusting screw is rotatably connected with the anti-slip gasket. A sleeve is fixedly sleeved outside the adjusting screw. An activity cavity matched with the sleeve is vertically opened on the connecting seat.

[0011] Preferably, the anti-loosening abutting ring is located inside the activity cavity. A top spring is fixedly connected between the bottom surface of the anti-loosening abutting ring and the bottom of the activity cavity. The top surface of the anti-loosening abutting ring is in frictional contact with the bottom end of the sleeve.

[0012] Preferably, the check indicating mechanism includes a cross bar horizontally and movably inserted into the connecting seat. A connecting spring is installed between the cross bar and the connecting seat. One end of the cross bar abuts against the side wall of the anti-loosening abutting ring under the action of the connecting spring. The other end of the cross bar is located outside the connecting seat. A limiting rod is slidably installed outside the connecting seat. The bottom of the limiting rod is lapped on the cross bar. A check tooth matched with the bottom of the limiting rod is horizontally installed on the cross bar.

[0013] Preferably, the anti-loosening abutting ring includes a frustum section and a column section distributed up and down. An anti-slip cushion layer is provided on the top surface of the anti-loosening abutting ring.

[0014] Preferably, limiting shaft rods are rotatably installed on both sides of the top of the rack. Slots adapted to the two limiting shaft rods are respectively opened at both ends of the probe row.

[0015] Preferably, an anti-loosening pressing member is installed on one side of the inner wall of the slot. One end of the anti-loosening pressing member is located inside the slot, and a contact groove matching it is axially formed on the side wall of the limiting shaft rod.

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

[0017] In the above technical solution, the connecting seat is fixed by setting a positioning mechanism. During the fastening process of the positioning mechanism, the anti-loosening abutting ring will be gradually squeezed. At this time, the friction force between the anti-loosening abutting ring and the positioning mechanism gradually increases. The elastic support of the anti-loosening abutting ring generates 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 abutting ring is continuously pressed and pushes the check indicating mechanism to extend outwards. The wear degree is intuitively 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, realize the improvement of test accuracy, the extension of service life, and the optimization of operation efficiency, and is especially suitable for the IV characteristic test requirements of high-precision 0BB batteries.

[0018] It should be understood that the foregoing general description and the following detailed description are merely exemplary and explanatory and are not intended to limit the present disclosure.

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

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

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

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

[0023] Figure 3 In the present invention Figure 2 The enlarged view of part A;

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

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

[0026] Figure 6 In the present invention Figure 5 Enlarged view of part B;

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

[0028] Figure 8 Schematic internal structure diagram of the connector in a 0BB battery IV characteristic test device of the present invention;

[0029] Figure 9 Bottom view of the connector in a 0BB battery IV characteristic test device of the present invention.

[0030] Explanation of reference numerals:

[0031] 1. Rack; 11. Slide groove; 12. Limit shaft rod; 13. Abuttment groove; 14. Tooth ring; 15. Limit post; 2. Connector; 21. Accommodation groove; 22. Limit abutment block; 23. Brake strip; 24. Abuttment inclined groove; 25. Tension spring; 3. Probe row; 31. Current probe; 32. Voltage probe; 33. Silver strip; 35. Slot; 4. Positioning mechanism; 41. Adjusting screw; 42. Sleeve; 43. Activity cavity; 5. Anti-slip gasket; 6. Anti-loosening abutment ring; 61. Top spring; 62. Tapered section; 63. Columnar section; 64. Anti-slip cushion layer; 7. Check indicator mechanism; 71. Cross bar; 72. Connecting spring; 73. Limit rod; 74. Check tooth; 8. Anti-loosening pressing member; 81. Sector-shaped pressing plate; 82. Push rod. Detailed implementation manners

[0032] To make the objectives, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are some, but not all, of the embodiments of the present disclosure. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present disclosure without creative efforts shall fall within the scope of protection of the present disclosure.

[0033] Please refer to Figures 1-9, a BB battery IV characteristic test device provided by an embodiment of the present invention includes a storage rack 1, and also includes several pairs of connecting seats 2. Each pair of connecting seats 2 is respectively slidably installed on both sides of the top surface of the storage rack 1. A probe row 3 is installed between each pair of connecting seats 2. A positioning mechanism 4 is installed in the connecting seat 2. An anti-slip gasket 5 is installed at the bottom of the positioning mechanism 4. An anti-loosening abutting ring 6 elastically abutted against the positioning mechanism 4 is installed inside the connecting seat 2. A check indicator mechanism 7 elastically inserted outside the connecting seat 2 and inclinedly abutted against the side wall of the anti-loosening abutting ring 6 is provided. When the positioning mechanism 4 is adjusted to press the anti-slip gasket 5 against the storage rack 1 tightly, the positioning mechanism 4 abuts against the anti-loosening abutting ring 6, and the check indicator mechanism 7 is pressed by the anti-loosening abutting ring 6 to protrude, so as to judge the wear degree of the anti-slip gasket 5.

[0034] Specifically, the storage rack 1 is a long strip-shaped frame structure. Several pairs of connecting seats 2 move on the storage rack 1 respectively. The two connecting seats 2 in each pair are respectively located on both sides of the storage rack 1 and can slide along the length direction of the storage rack 1. They are fixed as a whole through the horizontally connected probe row 3. Multiple groups of test probes are arranged on the probe row 3 for contacting the battery surface. The positioning mechanism 4 is vertically installed in the connecting seat 2, and an anti-slip gasket 5 is additionally installed at its bottom to increase the friction force of the contact surface with the storage rack 1. When the positioning mechanism 4 is tightened, the anti-slip gasket 5 is pressed tightly on the surface of the storage rack 1, thereby fixing the position of the connecting seat 2. The anti-loosening abutting ring 6 is elastically installed inside the connecting seat 2 through an elastic member and can contact and abut against the positioning mechanism 4 from below. When the positioning mechanism 4 is tightened and pressed down, it can contact the top surface of the anti-loosening abutting ring 6 and form self-locking through the friction force to prevent the positioning mechanism 4 from retreating and loosening. The check indicator mechanism 7 is horizontally inserted into the connecting seat 2, and its inner end contacts the inclined side wall of the anti-loosening abutting ring 6. When the anti-loosening abutting ring 6 is displaced due to the downward pressure of the positioning mechanism 4, the outer end of the check indicator mechanism 7 extends outwards. The extension length is proportional to the wear degree of the anti-slip gasket 5. When the anti-slip gasket 5 wears and becomes thinner, it is necessary to further tighten the positioning mechanism 4 to maintain the fixing force. At this time, the anti-loosening abutting ring 6 moves downward to push the outer end of the check indicator mechanism 7 to extend. 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, the positioning mechanism 4 and the anti-loosening abutting ring 6, ensuring stable contact between the probe row 3 and the battery surface and avoiding signal fluctuations caused by displacement during the test process.

[0035] Compared with the prior art, in the embodiment of the present invention, the positioning mechanism 4 is provided to fix the connecting seat 2. During the fastening process of the positioning mechanism 4, the anti-loosening abutting ring 6 will be gradually squeezed. At this time, the frictional force between the anti-loosening abutting ring 6 and the positioning mechanism 4 gradually increases. The elastic support of the anti-loosening abutting ring 6 generates 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 abutting ring 6 is continuously compressed and pushes the check indicating mechanism 7 to extend outwards. The wear degree is visually 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, extend the service life of the device, solve the problems of unstable positioning, difficult wear measurement, and cumbersome maintenance of traditional devices, and achieve the improvement of test accuracy, the extension of service life, and the optimization of operation efficiency, especially 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. Silver bars 33 are respectively installed at the bottoms of a row of current probes 31 and a row of voltage probes 32. The two silver bars 33 are in a finger-crossed shape. Specifically, on the basis of the existing IV probe row 3, two finger-crossed silver bars 33 are welded at the probe ends to separately and independently collect current and voltage, which can enhance the current collection ability 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 parallel chutes 11 are formed on the rack 1. The cross-section of the chute 11 is in an inverted T shape. The bottom of the connecting seat 2 is inserted into the chute 11. A receiving groove 21 is formed at the bottom of the connecting seat 2. A pair of limiting abutting blocks 22 are elastically connected in the receiving groove 21. A pair of tension springs 25 are installed between the two limiting abutting blocks 22. The anti-slip gasket 5 is located between the pair of limiting abutting blocks 22. At the top of the inner sides of the two limiting abutting blocks 22, abutting inclined grooves 24 are provided. The two sides of the anti-slip gasket 5 are respectively in abutting cooperation with the respective limiting abutting blocks 22. Specifically, when it is necessary to insert the connecting seat 2 into the chute 11, first loosen the positioning mechanism 4, so that the pair of limiting abutting blocks 22 are hidden in the receiving cavity under the action of the tension spring 25, so that the connecting seat 2 can be quickly inserted into the chute 11, facilitating the replacement and maintenance of the connecting seat 2. After the connecting seat 2 is inserted into the chute 11, the height inside the anti-slip gasket 5 is adjusted by the positioning mechanism 4. The anti-slip gasket 5 presses against the abutting inclined grooves 24 on the limiting abutting blocks 22 to synchronously extend the pair of limiting abutting blocks 22 in the receiving cavity, preventing the connecting seat 2 from detaching from the chute 11 when moving with the probe row 3. Then, the connecting seat 2 is further fixed. By further tightening the positioning mechanism 4, the anti-slip gasket 5 is completely pushed out of the limiting abutting blocks 22. First, the two limiting abutting blocks 22 on both sides respectively abut against the inner walls on both sides of the chute 11. Then, the anti-slip gasket 5 itself is closely attached to the bottom of the chute 11, realizing positioning and anti-deviation in multiple directions, ensuring the firmness of the probe row 3 during operation, ensuring stable clamping force, and thus also extending the service life of the anti-slip gasket 5.

[0038] In a further technical solution of the present invention, 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 gasket 5. A sleeve 42 is fixedly sleeved outside the adjusting screw 41. An activity cavity 43 matching the sleeve 42 is vertically formed on the connecting seat 2. Specifically, the adjusting screw 41 vertically penetrates through the connecting seat 2, and its bottom is connected to the anti-slip gasket 5 through a rotating shaft. The width of the anti-slip gasket 5 is the same as the width of the receiving groove 21, ensuring that the anti-slip gasket 5 only moves up and down but does not rotate with the screw when the screw rotates. A knob is provided at the top of the adjusting screw 41 for convenient manual rotation operation. The outer diameter of the sleeve 42 fixedly sleeved on the outer wall of the adjusting screw 41 is slightly smaller than the inner diameter of the vertically formed activity cavity 43 in the connecting seat 2, and the two are in clearance fit. The activity cavity 43 is a cylindrical cavity, guiding the up and down movement of the sleeve 42 and restricting its horizontal deviation at the same time, ensuring that the adjusting screw 41 drives the anti-slip gasket 5 to move vertically during the screwing process.

[0039] In a further technical solution of the present invention, the anti-loosening abutting 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 abutting ring 6 and the bottom of the movable cavity 43. The top surface of the anti-loosening abutting ring 6 is in frictional contact with the bottom end of the sleeve 42. Specifically, the anti-loosening abutting ring 6 is elastically supported by the top spring 61 and is lifted by the top spring 61 under normal conditions. When the sleeve 42 moves downward synchronously with the adjusting screw 41, the bottom end of the sleeve 42 presses the anti-loosening abutting ring 6 and compresses the top spring 61, so that the frictional force generated between the top surface of the anti-loosening abutting ring 6 and the sleeve 42 forms self-locking, preventing the adjusting screw 41 from backing off due to vibration.

[0040] In a further technical solution of the present invention, the check indicator mechanism 7 includes a cross bar 71 horizontally and movably 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 is inclined to abut 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 abuts on the cross bar 71, and a check tooth 74 cooperating with the bottom of the limiting rod 73 is horizontally installed on the cross bar 71. Specifically, the outer end of the cross bar 71 extends to the outside of the connecting seat 2 and is marked with a scale line for indicating the outer extension length. When the anti-loosening abutting ring 6 is pressed down by the positioning mechanism 4, if the anti-slip gasket 5 is not worn excessively, the height at which the anti-loosening abutting ring 6 is located will not push the cross bar 71 to move. However, if the anti-slip gasket 5 is worn excessively, the adjusting screw 41 needs to be further tightened downward. At this time, as the anti-loosening abutting ring 6 is further pressed down, the outer wall of the anti-loosening abutting ring 6 pushes the cross bar 71 to move outward, overcoming the elastic force of the connecting spring 72 and causing the scale line at the outer end of the cross bar 71 to extend. At the same time, the bottom of the limiting rod 73 meshes with the check tooth 74, preventing the cross bar 71 from moving reversely due to the spring rebound, ensuring that the outer extension scale only increases unidirectionally with the wear amount of the anti-slip gasket 5. The operator can directly judge the wear degree of the anti-slip gasket 5 by observing the extension length of the scale line at the outer end of the cross bar 71, realizing real-time monitoring without disassembly. If a brand-new anti-slip gasket 5 is replaced, the limiting rod 73 can be directly lifted to quickly reset the cross bar 71 under the action of the connecting spring 72, and the operation is convenient and fast.

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

[0042] In a further technical solution of the present invention, limiting shaft rods 12 are rotatably installed on both sides of the top of the bent frame 1. Slots 35 adapted to the two limiting shaft rods 12 are respectively opened at both ends of the probe row 3. The probe row 3 is also provided with mounting holes for fixing it to the connecting seat 2 above the slots 35. A toothed ring 14 is sleeved on one end of the limiting shaft rod 12, and a limiting column 15 meshing with the toothed ring 14 is movably installed on the bent frame 1. Specifically, the limiting shaft rods 12 are rotatably installed on both sides of the top of the bent frame 1 through bearings. Both ends of the probe row 3 are respectively provided with U-shaped slots 35. The inner wall of the slots 35 matches the diameter of the limiting shaft rods 12, and the opening direction of the slots 35 is downward, facilitating the probe row 3 to be sleeved on the limiting shaft rods 12 when vertically pressed down. Mounting holes are opened directly above the two slots 35 on both sides of the probe row 3. The mounting holes penetrate through the probe row 3 and are aligned with the threaded holes on the connecting seat 2. The probe row 3 and the connecting seat 2 are quickly fixed by bolts passing through the mounting holes and the threaded holes. At the same time, the wrapping effect of the slots 35 on the limiting shaft rods 12 further prevents the probe row 3 from laterally shifting during the test, ensuring the stability of the probe contact. Before installing the probe row 3, the limiting shaft rods 12 rotated to a suitable angle can be locked, and only by making the limiting column 15 and the toothed ring 14 inserted and matched can the deflection of the limiting shaft rods 12 under pressure be prevented.

[0043] In a further technical solution of the present invention, a loosening prevention pressing member 8 is installed on one side of the inner wall of the slot 35. One end of the loosening prevention pressing member 8 is located inside the slot 35, and a contact groove 13 matching it is axially formed on the side wall of the limiting shaft rod 12. The loosening prevention pressing member 8 includes a push rod 82 movably embedded in the probe row 3. One end of the push rod 82 is provided with a sector-shaped pressing plate 81 in the slot 35. The sector-shaped pressing plate 81 elastically abuts against the inner wall of the slot 35. The sector-shaped pressing plate 81 is located in the contact groove 13. Specifically, when installing the probe row 3, during the downward pressing process, the limiting shaft rod 12 presses the sector-shaped pressing plate 81, causing it to temporarily retract into the slot 35. When the slot 35 of the probe row 3 completely sleeves the limiting shaft rod 12, the sector-shaped pressing plate 81 is pushed to reset and embedded in the contact groove 13 under the action of elastic force to form a clamping connection, preventing the probe row 3 from shaking and shifting during further installation and fixation, accelerating the installation and positioning efficiency, and enabling synchronous control of multiple probe rows 3 by rotating the limiting shaft rod 12, which is convenient to operate.

[0044] In a further technical solution of the present invention, a braking strip 23 is horizontally movably embedded in the connecting seat 2. The other end of the loosening prevention pressing member 8 and the contact surfaces of the braking 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 rod 12 is rotated to push against the loosening prevention pressing member 8, making the outer wall of the limiting shaft rod 12 abut against the sector-shaped pressing plate 81. The push rod 82 is pushed by the sector-shaped pressing plate 81 to press the braking strip 23, thereby further stabilizing the adjusting bolt by using the frictional force between the braking strip 23 and the sleeve 42, and further locking and fixing the probe rows 3 on the entire rack 1.

[0045] Only some exemplary embodiments of the present invention have been described by way of illustration above. Without doubt, for those of ordinary skill in the art, the described embodiments can be modified in various different ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the protection scope of the claims of the present invention.

Claims

1. A 0BB battery IV characteristic test device, including a rack (1), characterized in that, It further includes: A plurality of pairs of connecting seats (2), each pair of the connecting seats (2) are respectively slidably installed on both sides of the top surface of the rack (1), and a probe row (3) is installed between each pair of the connecting seats (2); A positioning mechanism (4), which is installed in the connecting seat (2), an anti-slip gasket (5) is installed at the bottom of the positioning mechanism (4), a loosening prevention abutting ring (6) elastically abutted against the positioning mechanism (4) is installed in the connecting seat (2), and a check indicating mechanism (7) which is elastically inserted into the outside of the connecting seat (2) and is inclinedly abutted and matched with the side wall of the loosening prevention abutting ring (6) is provided; When the positioning mechanism (4) is adjusted to tightly abut the anti-slip gasket (5) against the rack (1), the positioning mechanism (4) abuts against the loosening prevention abutting ring (6), and the check indicating mechanism (7) is pressed by the loosening prevention abutting ring (6) to extend out to judge the wear degree of the anti-slip gasket (5).

2. The 0BB battery IV characteristic testing device according to claim 1, characterized in that, 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, silver bars (33) are respectively installed at the bottoms of a row of the current probes (31) and a row of the voltage probes (32), and the two silver bars (33) are in a finger-crossed shape.

3. The IV characteristic testing device for an 0BB battery according to claim 1, characterized in that A pair of parallel chutes (11) are formed on the rack (1), the bottom of the connecting seat (2) is inserted into the chute (11), and a receiving groove (21) is formed at the bottom of the connecting seat (2), a pair of limiting abutting blocks (22) are elastically connected in the receiving groove (21), the anti-slip gasket (5) is located between the pair of limiting abutting blocks (22), and both sides of the anti-slip gasket (5) are respectively abutted and matched with the respective limiting abutting blocks (22).

4. The 0BB battery IV characteristic testing device according to claim 3, characterized in that, The positioning mechanism (4) includes an adjusting screw rod (41) vertically inserted into the connecting seat (2), the bottom of the adjusting screw rod (41) is rotatably connected with the anti-slip gasket (5), a sleeve (42) is fixedly sleeved outside the adjusting screw rod (41), and a movable cavity (43) matching with the sleeve (42) is vertically formed on the connecting seat (2).

5. The 0BB battery IV characteristic test device according to claim 4, characterized in that, The loosening prevention abutting ring (6) is located inside the movable cavity (43), and a top spring (61) is fixedly connected between the bottom surface of the loosening prevention abutting ring (6) and the bottom of the movable cavity (43), and the top surface of the loosening prevention abutting ring (6) is in frictional contact with the bottom end of the sleeve (42).

6. The 0BB battery IV characteristic test device according to claim 1, characterized in that The check indicating mechanism (7) includes a cross bar (71) horizontally and movably 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 loosening prevention 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 lapped on the cross bar (71), and a check tooth (74) matching with the bottom of the limiting rod (73) is horizontally installed on the cross bar (71).

7. An OBB battery IV characteristic testing device according to claim 1, characterized in that, The loosening prevention abutting ring (6) includes a frustum section (62) and a columnar section (63) which are distributed up and down, and an anti-slip cushion layer (64) is arranged on the top surface of the loosening prevention abutting ring (6).

8. An OBB battery IV characteristic testing device according to claim 1, characterized in that On both sides of the top of the shelf (1), limiting shaft rods (12) are rotatably installed, and slots (35) adapted to the two limiting shaft rods (12) are respectively formed at both ends of the probe row (3).

9. The 0BB battery IV characteristic test device according to claim 8, wherein, On one side of the inner wall of the slot (35), an anti-loosening pressing member (8) is installed. One end of the anti-loosening pressing member (8) is located inside the slot (35), and an abutting groove (13) matching therewith is axially formed on the side wall of the limiting shaft rod (12).

10. The 0BB battery IV characteristic testing device according to claim 9, characterized in that, A braking strip (23) is horizontally and movably embedded in the connecting seat (2), and the other ends of the anti-loosening pressing members (8) and the contact surfaces of the positioning mechanism (4) are on the same horizontal line.

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