Explosion-proof performance testing tool for lead-acid storage battery

Abstract

The utility model provides a lead-acid storage battery explosion-proof performance test tool, and relates to the technical field of test tools, the lead-acid storage battery explosion-proof performance test tool comprises a universal adjusting seat, a positioner, a fuse and a direct current generator, the universal adjusting seat is arranged in an explosion-proof box, the universal adjusting seat comprises a movable end, and the movable end is used for moving to the outer side of an exhaust hole of a lead-acid storage battery; the positioner is arranged at the movable end of the universal adjusting seat, and the positioner is provided with two clamping ends; the fuse is arranged on the positioner, and two ends of the fuse are respectively clamped and fixed by the two clamping ends; the direct current generator is electrically connected with the positioner so as to electrify the fuse through the two clamping ends. According to the utility model, through the arrangement of the universal adjusting seat and the positioner, the fuse can be clamped and fixed, the fixing firmness of the fuse is ensured, and the position of the fuse can be adjusted, so that the fuse can adapt to storage batteries of different specifications, and the accuracy of the detection result of the test tool is improved.

Description

Technical Field

[0001] This utility model relates to the field of testing tooling technology, and in particular to a testing tooling for the explosion-proof performance of lead-acid batteries. Background Technology

[0002] The explosion-proof performance test of lead-acid batteries is a key item in the safety performance indicators of battery products. The electrolyte of the battery is a sulfuric acid solution, and the electrodes are made of lead and its oxides. Overcharging will produce hydrogen, oxygen and other gases that escape. When the concentration of this mixture of gases exceeds 4% in the air of a confined space, it will explode when exposed to an open flame, which may damage the battery or even cause injury and property damage.

[0003] Existing technologies typically use blown fuses to test the explosion-proof performance of lead-acid batteries. For example, the battery explosion-proof performance testing device disclosed in utility model CN205038318U has a fuse installed inside the enclosure and a transformer and current regulating device installed outside the enclosure. The fuse is placed above the battery vent, and the blown fuse is used to check whether the battery has caught fire or exploded. However, the fuse position in this solution is relatively fixed. For different battery specifications, different battery mounts need to be replaced so that the vent of different battery specifications can be aligned with the fuse. This setup results in poor device adaptability, and for some special batteries, such as those with vents located on the side, it is difficult to perform explosion-proof performance testing. Utility Model Content

[0004] In view of this, the present invention proposes a test fixture for the explosion-proof performance of lead-acid batteries, which can fix and adjust the fuse, improve the applicability to batteries of different specifications during explosion-proof testing, and ensure the accuracy of the test results of the battery explosion-proof performance.

[0005] The technical solution of this utility model is achieved as follows: This utility model provides a test fixture for the explosion-proof performance of lead-acid batteries, including a universal adjustment base, a positioner, a fuse, and a DC current generator, wherein...

[0006] The universal adjustment seat is installed inside the explosion-proof box. The universal adjustment seat includes a movable end, which is used to move to the outside of the lead-acid battery vent hole.

[0007] The positioner is mounted on the movable end of the universal adjustment seat, and the positioner has two clamping ends;

[0008] The fuse is mounted on the positioner, and both ends are clamped and fixed by two clamping ends respectively;

[0009] The DC current generator is electrically connected to the positioner to energize the fuse through the two clamping ends.

[0010] Based on the above technical solutions, preferably, the positioner includes a mounting bracket, two sliding rods, two baffles, two clamping plates, and two springs, wherein,

[0011] The mounting bracket is fixedly mounted on the universal adjustment seat;

[0012] The slide bar is slidably mounted on the mounting bracket;

[0013] The baffle and the clamp are respectively fixedly installed at both ends of the slide rod;

[0014] The spring is abutting between the mounting bracket and the baffle, and the two springs, the two clamps, the two baffles and the two slide rods correspond one-to-one;

[0015] The end of the fuse is held and fixed between the mounting bracket and the clamp.

[0016] More preferably, the mounting bracket includes a plate and two sleeves, wherein,

[0017] The plate is fixedly mounted on the universal adjustment seat;

[0018] The sleeve is fixed through the plate, and the slide rod is slidably disposed inside the sleeve.

[0019] More preferably, the top side of the slide bar has a slot, and the end of the fuse abuts against the inner wall of the slot.

[0020] More preferably, a limiting groove is formed at the end of the sleeve away from the baffle, and the fuse abuts against the inner wall of the limiting groove.

[0021] More preferably, the positioner further includes two terminals, which are fixedly disposed on the side of the baffle away from the slide rod and correspond one-to-one with it;

[0022] The slide bar, the baffle, and the terminal are all made of conductive material.

[0023] More preferably, the slot is inclined.

[0024] Based on the above technical solutions, preferably, the universal adjustment seat includes a base plate, a base frame, a top frame, and a universal seat, wherein,

[0025] The base plate is installed inside the explosion-proof box;

[0026] The base frame is fixedly mounted on the base plate in a rotatable manner;

[0027] The top frame is fixedly mounted on the base frame;

[0028] The universal joint is fixedly mounted on the top frame and is fixedly connected to the positioner.

[0029] More preferably, the base frame includes a rotating cylinder, a main beam, bolts, an auxiliary beam, and a tension spring, wherein,

[0030] The rotating drum is fixedly mounted on the base plate;

[0031] The main beam is rotatably mounted inside the rotating drum, and the top frame is rotatably mounted on the main beam;

[0032] The bolt passes through the rotating cylinder and is connected to it by a threaded engagement, and the front end of the bolt abuts against the main beam;

[0033] One end of the auxiliary beam is rotatably mounted on the main beam, and the other end is detachably fixed to the top frame;

[0034] The tension spring is fixedly installed between the main beam and the auxiliary beam.

[0035] More preferably, the universal joint includes a rotating frame, a fixing rod, and a friction plate, wherein,

[0036] The rotating frame is fixedly mounted on the positioner;

[0037] The fixing rod is fixedly mounted on the top frame;

[0038] The friction plate is fixedly mounted on the fixed rod and abuts against and is rotatably connected to the rotating frame.

[0039] This utility model provides a test fixture for the explosion-proof performance of lead-acid batteries, which has the following advantages over existing technologies:

[0040] Beneficial effects:

[0041] (1) By setting up a universal adjustment seat and a positioner, not only can the fuse be clamped and fixed to ensure the fuse is firmly fixed, but the position of the fuse can also be adjusted to improve the applicability of different specifications of batteries during explosion-proof testing and ensure the accuracy of the battery explosion-proof performance test results.

[0042] (2) By setting the positioner to include a mounting bracket, a slide bar, a baffle, a clamp and a spring, the fuse can be fixed by sliding the slide bar. By setting the slot and the limit slot, the convenience of installing and removing the fuse can be improved.

[0043] (3) By setting the universal adjustment seat to include a base plate, a base frame, a top frame and a universal seat, the universal adjustment of the fuse can be realized, thereby improving the convenience of fuse adjustment. Attached Figure Description

[0044] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0045] Figure 1 This is a front view of a test fixture for the explosion-proof performance of lead-acid batteries according to this utility model;

[0046] Figure 2 This is a perspective view of the fuse in a test fixture for the explosion-proof performance of a lead-acid battery according to this utility model.

[0047] Figure 3 This is a perspective view of the slide bar in a test fixture for the explosion-proof performance of a lead-acid battery according to this utility model;

[0048] Figure 4 This is a perspective view of the universal joint in a test fixture for the explosion-proof performance of a lead-acid battery according to this utility model.

[0049] Figure 5 This is a perspective view of the base plate of a test fixture for the explosion-proof performance of a lead-acid battery according to this utility model.

[0050] Figure 6 This is a perspective view of the top frame of a test fixture for the explosion-proof performance of lead-acid batteries according to this utility model. Detailed Implementation

[0051] The technical solutions of this utility model will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0052] This utility model discloses a test fixture for the explosion-proof performance of lead-acid batteries, comprising a universal adjustment seat 2, a positioner 3, a fuse 4, and a DC current generator 5.

[0053] Positioner 3 is fixedly mounted on the output end of universal adjustment base 2, and fuse 4 is fixedly mounted on positioner 3 and electrically connected to DC current generator 5, such as Figure 1As shown, when testing a lead-acid battery, the lead-acid battery and universal adjustment seat 2 are placed inside the explosion-proof box 1, and the DC current generator 5 is placed outside the explosion-proof box 1. The fuse 4 is fixed above the lead-acid battery vent valve by adjusting the universal adjustment seat 2. Then, the DC current generator 5 is used to cause the fuse 4 to melt and generate an electric spark. The lead-acid battery is observed to see if it burns or explodes in order to determine the explosion-proof performance of the lead-acid battery.

[0054] To improve the testing process, components such as exhaust fans, temperature sensors, and fire nozzles can be installed inside the explosion-proof enclosure 1 to promptly eliminate the impact of battery explosion or combustion.

[0055] The universal adjustment seat 2 includes a base plate 21, a base frame 22, a top frame 23, and a universal seat 24. The base plate 21 is installed inside the explosion-proof box 1. The base frame 22 is fixedly installed on the base plate 21 in a rotatable manner. The top frame 23 is fixedly installed on the base frame 22. The universal seat 24 is fixedly installed on the top frame 23 and is fixedly connected to the positioner 3. By rotating the base frame 22 and the universal seat 24, the positioner 3 and the fuse 4 on the positioner 3 can be rotated to make the fuse 4 be at a suitable angle.

[0056] The base frame 22 includes a rotating cylinder 221, a main beam 222, bolts 223, an auxiliary beam 224, and a tension spring 225, as follows: Figure 5 As shown, the rotating drum 221 is fixedly mounted on the base plate 21, and the main beam 222 is rotatably mounted inside the rotating drum 221. The bolt 223 passes through the rotating drum 221 and is connected to the rotating drum 221 by threaded engagement. The front end of the bolt 223 abuts against the main beam 222. When the bolt 223 is loosened, the main beam 222 can be rotated. When the main beam 222 is rotated to the appropriate position, the bolt 223 is tightened so that the front end of the bolt 223 abuts against the main beam 222 and is fixed.

[0057] like Figure 5 and Figure 6 As shown, the top frame 23 is rotatably mounted on the main beam 222, and one end of the auxiliary beam 224 is rotatably mounted on the main beam 222, while the other end is detachably fixed to the top frame 23. By rotating the top frame 23 and removing and fixing the auxiliary beam 224 to the main beam 222, the height and angle of the top frame 23 can be adjusted so that the fuse 4 can be adapted to lead-acid batteries of different specifications.

[0058] The auxiliary beam 224 and the top frame 23 are preferably fixed with screws to enable quick assembly and disassembly. The tension spring 225 is fixed between the main beam 222 and the auxiliary beam 224. When the screws are loosened, the elastic force of the tension spring 225 is used to bring the auxiliary beam 224 closer to the main beam 222, thereby allowing the base frame 22 to fold quickly.

[0059] like Figure 1As shown, the structure of the top frame 23 is the same as that of the base frame 22, in order to enhance the adjustment performance of the universal adjustment seat 2.

[0060] like Figure 4 As shown, the universal joint 24 includes a rotating frame 241, a fixed rod 242, and a friction plate 243. The rotating frame 241 is fixedly mounted on the positioner 3, the fixed rod 242 is fixedly mounted on the top frame 23, and the friction plate 243 is fixedly mounted on the fixed rod 242 and abuts against and is rotatably connected to the rotating frame 241. Preferably, the end of the fixed rod 242 away from the top frame 23 and the friction plate 243 are both spherical structures. A spherical groove is opened on the rotating frame 241. The high friction performance of the friction plate 243 is used to fix the friction plate 243 and the rotating frame 241. When a large external force is applied to the positioner 3, the rotating frame 241 can rotate relative to the friction plate 243 to realize the angle adjustment of the positioner 3 and the fuse 4.

[0061] Positioner 3 includes mounting bracket 31, slide bar 32, baffle 33, clamping plate 34, spring 35, and terminal block 36, such as Figures 2-4 As shown, the mounting bracket 31 is fixedly mounted on the universal adjustment seat 2. The slide rod 32 passes through and slides within the mounting bracket 31. The baffle 33 and clamp 34 are respectively fixedly mounted at both ends of the slide rod 32. The spring 35 is held between the mounting bracket 31 and the baffle 33. By sliding the slide rod 32 along the direction from the baffle 33 to the clamp 34, the spring 35 will retract, creating a gap between the clamp 34 and the mounting bracket 31. At this time, one end of the fuse 4 is placed in this gap, and the slide rod 32 is released. The elastic force of the spring 35 allows the slide rod 32 to return to its original position, so that the clamp 34 and the mounting bracket 31 hold and fix one end of the fuse 4. The disassembly and assembly of the fuse 4 is relatively simple, which can greatly improve the operational convenience of this testing fixture and the testing efficiency of the battery.

[0062] like Figure 4 As shown, terminal 36 is fixedly installed on the side of baffle 33 away from slide bar 32. Slide bar 32, baffle 33 and terminal 36 are all made of conductive material. By electrically connecting terminal 36 to DC current generator 5 through wire, the fuse 4 and DC current generator 5 can be automatically connected. When assembling fuse 4, it is not necessary to electrically connect fuse 4 and DC current generator 5, which can also improve the testing efficiency of battery.

[0063] In order to fix the two ends of the fuse 4 and make it electrically conductive, there are two of each of the slide rod 32, baffle 33, clamp 34, spring 35 and terminal 36. The two terminal 36, two springs 35, two clamps 34, two baffles 33 and two slide rods 32 correspond one to one, and the two terminal 36 are respectively connected to the positive and negative terminals of the DC current generator 5.

[0064] like Figure 3 As shown, the mounting bracket 31 includes a plate 311 and two sleeves 312. The plate 311 is fixedly mounted on the universal adjustment seat 2, and the sleeves 312 are fixedly mounted through the plate 311. A sliding rod 32 corresponds one-to-one with a sleeve 312, and the sliding rod 32 is slidably disposed within the sleeve 312; the sleeves 312 are used to maintain the sliding stability of the sliding rod 32. Preferably, the two sleeves 312 are parallel and spaced apart.

[0065] A slot 301 is provided on the top side of the slide rod 32, such as... Figure 3 As shown, when the end of the fuse 4 is placed in the slot 301, when the spring 35 moves the clamp 34 close to the mounting bracket 31, the end of the fuse 4 can abut against the inner wall of the slot 301 to improve the firmness of the positioner 3 in fixing the fuse 4.

[0066] The slot 301 is inclined, and the inner wall of the slot 301 gradually approaches the clamp 34 from top to bottom. When the slide bar 32 rebounds, the inner wall of the slot 301 supports the fuse 4, allowing the fuse 4 to gradually approach the lower end of the slot 301, thereby improving the ease of installation of the fuse 4.

[0067] like Figure 3 As shown, a limiting groove 302 is provided at the end of the sleeve 312 away from the baffle 33. When the clamping plate 34 abuts against the sleeve 312, the fuse 4 abuts against the inner wall of the limiting groove 302 and the clamping plate 34, thereby strengthening the fixation of the locator 3 on the fuse 4.

[0068] The DC current generator 5 is used to generate DC current and can be made of dry cell batteries or lithium batteries.

[0069] The method of using the lead-acid battery explosion-proof performance testing fixture of this utility model is as follows:

[0070] First, place the lead-acid battery and universal adjustment seat 2 inside the explosion-proof box 1, and place the DC current generator 5 outside the explosion-proof box 1. Then, fix both ends of the fuse 4 to the positioner 3. Next, use the adjustment of the universal adjustment seat 2 to fix the fuse 4 above the lead-acid battery exhaust valve. Finally, use the DC current generator 5 to cause the fuse 4 to melt and generate an electric spark. Observe whether the lead-acid battery burns or explodes to determine the explosion-proof performance of the lead-acid battery.

[0071] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A testing fixture for the explosion-proof performance of lead-acid batteries, characterized in that: It includes a universal adjustment seat (2), a positioner (3), a fuse (4), and a DC current generator (5), among which, The universal adjustment seat (2) is installed inside the explosion-proof box (1). The universal adjustment seat (2) includes a movable end, which is used to move to the outside of the lead-acid battery exhaust port. The positioner (3) is set on the movable end of the universal adjustment seat (2), and the positioner (3) has two clamping ends; The fuse (4) is set on the positioner (3), and its two ends are clamped and fixed by two clamping ends respectively; The DC current generator (5) is electrically connected to the positioner (3) to energize the fuse (4) through the two clamping ends.

2. The test fixture for the explosion-proof performance of lead-acid batteries as described in claim 1, characterized in that: The positioner (3) includes a mounting bracket (31), two slide rods (32), two baffles (33), two clamping plates (34), and two springs (35), wherein, The mounting bracket (31) is fixedly mounted on the universal adjustment seat (2); The slide bar (32) is slidably mounted on the mounting bracket (31); The baffle (33) and the clamp (34) are respectively fixedly disposed at both ends of the slide rod (32); Springs (35) are abutted between the mounting bracket (31) and the baffle (33), and the two springs (35), the two clamps (34), the two baffles (33) and the two slide rods (32) correspond one to one; The end of the fuse (4) is held and fixed between the mounting bracket (31) and the clamp (34).

3. The test fixture for the explosion-proof performance of lead-acid batteries as described in claim 2, characterized in that: The mounting bracket (31) includes a plate (311) and two sleeves (312), wherein, The plate (311) is fixedly mounted on the universal adjustment seat (2); The sleeve (312) is fixed through the plate (311), and the slide rod (32) is slidably disposed inside the sleeve (312).

4. The test fixture for the explosion-proof performance of lead-acid batteries as described in claim 3, characterized in that: The top side of the slide bar (32) is provided with a slot (301), and the end of the fuse (4) abuts against the inner wall of the slot (301).

5. The test fixture for the explosion-proof performance of lead-acid batteries as described in claim 4, characterized in that: The sleeve (312) has a limiting groove (302) at one end away from the baffle (33), and the fuse (4) abuts against the inner wall of the limiting groove (302).

6. The test fixture for the explosion-proof performance of lead-acid batteries as described in claim 2, characterized in that: The positioner (3) also includes two terminals (36), which are fixedly disposed on the side of the baffle (33) away from the slide rod (32) and correspond one to one with it. The slide rod (32), the baffle (33) and the terminals (36) are all made of conductive material.

7. The test fixture for the explosion-proof performance of lead-acid batteries as described in claim 4, characterized in that: The slot (301) is inclined.

8. The test fixture for the explosion-proof performance of lead-acid batteries as described in claim 1, characterized in that: The universal adjustment seat (2) includes a base plate (21), a base frame (22), a top frame (23), and a universal seat (24), wherein, The base plate (21) is installed inside the explosion-proof box (1); The base frame (22) is fixedly mounted on the base plate (21) in a rotatable manner; The top frame (23) is fixedly mounted on the base frame (22); The universal joint (24) is fixedly mounted on the top frame (23) and fixedly connected to the positioner (3).

9. The test fixture for the explosion-proof performance of lead-acid batteries as described in claim 8, characterized in that: The base frame (22) includes a rotating cylinder (221), a main beam (222), bolts (223), an auxiliary beam (224), and a tension spring (225), wherein, The rotating drum (221) is fixedly mounted on the base plate (21); The main beam (222) is rotatably mounted inside the rotating cylinder (221), and the top frame (23) is rotatably mounted on the main beam (222); The bolt (223) passes through the rotating drum (221) and is connected to it by thread engagement, and the front end of the bolt (223) abuts against the main beam (222); One end of the auxiliary beam (224) is rotatably mounted on the main beam (222), and the other end is detachably fixed to the top frame (23); A tension spring (225) is fixedly disposed between the main beam (222) and the auxiliary beam (224).

10. The test fixture for the explosion-proof performance of lead-acid batteries as described in claim 8, characterized in that: The universal joint (24) includes a rotating frame (241), a fixed rod (242) and a friction plate (243), wherein the rotating frame (241) is fixedly mounted on the positioner (3); The fixing rod (242) is fixedly installed on the top frame (23); The friction plate (243) is fixedly mounted on the fixed rod (242) and abuts against and is rotatably connected to the rotating frame (241).

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