Nickel-metal hydride battery quality detection device

Abstract

The utility model discloses a nickel-metal hydride battery quality detection device, which belongs to the technical field of battery quality detection, and aims to solve the problems of insufficient protection, inconvenience in clamping and the like of the existing device. The nickel-metal hydride battery quality detection device comprises a door-shaped test frame, a test bin, a lifting seat, two groups of symmetrical clamping arms, a pressing frame, a positioning rod and the like, the top of the test bin is provided with a hole for a battery to fall off and a safety tube, the bin door is connected with the test bin through a lock catch, the lifting seat is connected with the telescopic cylinder and slides along the test frame, the clamping arm automatically clamps the battery through a torsional spring, the pressing frame presses downwards to control the clamping arm to be opened and closed, and the positioning rod can adjust the height to enable the battery to fall off at a preset height. Detection safety is guaranteed through the safety tube and the closed test bin, convenient operation is achieved through the mechanical structure, the clamping blocks are specially designed to adapt to various batteries, the positioning rods are adjustable, various detection requirements are met, and detection safety and efficiency are improved.

Description

Technical Field

[0001] This utility model relates to the field of battery quality testing technology, specifically to a nickel-metal hydride battery quality testing device. Background Technology

[0002] With the rapid development of new energy technologies, nickel-metal hydride (NiMH) batteries have been widely used in many fields due to their environmental friendliness and high energy density. As a type of rechargeable battery, NiMH batteries have become a common power source for many electronic devices because of their environmental friendliness and high energy density. To ensure the safety, performance, and lifespan of NiMH batteries, rigorous testing and evaluation are crucial.

[0003] The purpose of nickel-metal hydride (NiMH) battery testing is to verify that it meets relevant standards and safety requirements, ensuring that the battery does not pose a safety hazard during use. Testing helps manufacturers improve product quality, reduce battery failure rates, and enhance user trust in the product. Currently, existing NiMH battery quality testing devices on the market have certain shortcomings in structural design and functional implementation.

[0004] Chinese patent CN222951945U discloses a battery production testing device for battery drop testing. It facilitates the clamping and fixing of batteries of different sizes. After the battery to be dropped is clamped by clamping plate No. 1 and clamping plate No. 2, motor No. 2 runs and can adjust the angle of the battery drop after clamping, effectively reducing the limitations of the battery drop testing device. However, the above technical solution lacks protective measures and cannot cope with the accident risk caused by unqualified batteries. Moreover, due to the use of motor control, it is inconvenient for operators to clamp the battery.

[0005] Therefore, this application provides a nickel-metal hydride battery quality testing device to meet the requirements. Utility Model Content

[0006] The purpose of this application is to provide a nickel-metal hydride battery quality testing device that solves the problems of existing testing devices lacking protective measures and inconvenient battery clamping, so as to achieve safe and stable clamping testing of nickel-metal hydride batteries and improve the safety and ease of operation of the testing process.

[0007] To achieve the above objectives, this application provides the following technical solution: a nickel-metal hydride battery quality testing device, comprising:

[0008] The test frame adopts a portal frame structure with a telescopic cylinder mounted on top and the telescopic rod set vertically downwards. The portal frame provides a stable framework for the entire testing device, and the telescopic cylinder provides power support for subsequent lifting operations.

[0009] The test chamber, located below the test rack, has openings in the top for batteries to drop into, and a door on the front. The test chamber is used to hold the nickel-metal hydride batteries to be tested, creating a closed testing environment. The openings in the top facilitate the smooth drop of the batteries after testing, and the door allows personnel to easily operate and observe the testing process.

[0010] The lifting platform, connected to the telescopic cylinder, is slidably connected to the test frame on both sides. The telescopic cylinder drives the telescopic rod to move the lifting platform vertically along the test frame, facilitating position adjustment for different drop test heights.

[0011] The clamping arms consist of two symmetrical sets that pass through and hinge to the slots on the lifting base. A torsion spring is installed at the hinge point. A pressure plate is located at the upper end of each clamping arm, and a clamping block is located at the lower end to hold the battery. Under the action of the torsion springs, the two sets of clamping arms automatically move towards the center, achieving automatic clamping of the battery. The pressure plate can withstand the pressure of the pressure frame, allowing the battery to drop from a predetermined height.

[0012] The pressure frame is hinged at the rear end to the top rear side of the lifting seat. It has a pressure bar at the front and a pressure block in the middle that abuts against the pressure plate. When the pressure bar is pressed down, the pressure frame rotates around the hinge point, the pressure block squeezes the pressure plate, and drives the clamping arms to rotate outward. The two sets of clamping blocks move outward, which facilitates the installation of batteries or causes the batteries to fall out.

[0013] The positioning rod, with both ends sliding vertically along the test frame, is positioned above the pressure frame and is limited on the test frame by a limiting block. The positioning rod is used to drive the pressure frame at a specified height, achieving the effect of the battery falling from a predetermined height, and its height can be flexibly adjusted according to testing requirements.

[0014] This device also features the following optimized designs:

[0015] Preferably, a safety tube penetrating the top of the test chamber is provided at the top hole to extend the protection range and prevent the battery from being ejected from the test chamber after a collision.

[0016] Preferably, the door is hinged to the bottom of the test chamber and connected to the top of the test chamber via a latch, and is equipped with a handle and an observation window. This design facilitates opening and closing the door, the latch ensures the door is tightly closed during testing, and the observation window allows personnel to view the testing process and results in real time.

[0017] Preferably, the latch consists of a plug and a locking plate. The plug can be inserted into the latch, and the locking plate is hinged to the latch and fitted with a torsion spring. The plug and the locking plate are engaged by a snap-fit ​​toothed connection, which is simple to operate and enables quick locking and unlocking of the compartment door.

[0018] Preferably, guide rails are symmetrically arranged on the left and right inner walls of the test frame, and guide blocks are correspondingly arranged on both sides of the lifting seat. The guide blocks slide vertically on the guide rails to ensure smooth lifting of the lifting seat and improve the stability of the device.

[0019] Preferably, the clamping surface of the clamping block has intersecting vertical and horizontal clamping grooves, with a pre-reserved gap at the front of the vertical clamping groove and rounded edges. This design is compatible with batteries of various sizes, enabling multi-directional clamping, and the rounded corners improve the convenience of clamping the battery.

[0020] Preferably, the test frame has symmetrical positioning grooves on both sides, with an anti-slip surface on the outer side. A limiting block is fitted to the anti-slip surface, and a limiting bolt passes through the limiting block and is threaded to the end of the positioning rod. This facilitates adjustment of the positioning rod height, and the anti-slip surface increases friction, enhancing the stability of the positioning rod and ensuring testing accuracy.

[0021] Preferably, the limiting block is equipped with a slider, and both the end of the positioning rod and the slider slide within the positioning groove, making the sliding of the positioning rod and the limiting block smoother and facilitating height adjustment.

[0022] Preferably, a pressure strip is provided at the bottom of the positioning rod, corresponding to the position of the pressure frame. The pressure strip is made of flexible material, which can protect the pressure frame.

[0023] In summary, the technical effects and advantages of this utility model are as follows:

[0024] 1. Strong safety protection: The closed design of the test chamber, combined with the safety tube, can provide protection when abnormalities occur during battery testing, prevent the spread of accidents, and provide effective safety protection for test personnel.

[0025] 2. Convenient and efficient operation: The mechanical structure design of telescopic cylinder, clamping arm and pressure frame enables rapid battery clamping, which is simpler to operate than the existing motor control method; the design of the compartment door facilitates battery loading and unloading and inspection, improving the overall inspection efficiency.

[0026] 3. Wide range of applications: The vertical and horizontal clamping slots and rounded corners on the clamping block can adapt to nickel-metal hydride batteries of different shapes and sizes, enhancing the versatility of the device; the adjustable positioning rod ensures that the drop detection height is adjustable, which can meet diverse detection needs. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application 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 application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0029] Figure 2 This utility model Figure 1 A magnified structural diagram at point A;

[0030] Figure 3 This is a front view structural diagram of the present utility model;

[0031] Figure 4 This utility model Figure 3 A schematic diagram of the BB cross-sectional structure;

[0032] Figure 5 This utility model Figure 4 A magnified structural diagram at point C;

[0033] Figure 6 This is a schematic diagram of the structure of the clamping arm of this utility model;

[0034] Figure 7 This is a schematic diagram of the assembly structure of the positioning rod and the limiting block of this utility model.

[0035] In the diagram: 1. Test frame; 2. Test chamber; 3. Telescopic cylinder; 4. Lifting seat; 5. Clamping arm; 6. Pressure frame; 7. Positioning rod; 8. Limiting block; 9. Limiting bolt; 10. Guide rail; 11. Positioning groove; 12. Anti-slip surface; 20. Safety tube; 21. Chamber door; 22. Observation window; 23. Handle; 24. Lock; 241. Insert block; 242. Locking plate; 30. Telescopic rod; 40. Guide block; 50. Pressure plate; 51. Clamping block; 52. Vertical clamping groove; 53. Horizontal clamping groove; 60. Pressure block; 61. Pressure rod; 70. Pressure strip; 80. Sliding block. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0037] Example: Reference Figure 1-7 The device shown is a nickel-metal hydride battery quality testing device, including a test frame 1, a test chamber 2, a lifting seat 4, a clamping arm 5, a pressure frame 6, and a positioning rod 7.

[0038] The test frame 1 is a portal frame, and the top of the test frame 1 is equipped with a telescopic cylinder 3, with the telescopic rod 30 on the telescopic cylinder 3 facing downwards;

[0039] Test chamber 2 is located below test rack 1. Test chamber 2 has holes on top for batteries to fall into, and test chamber 2 has a door 21 on the front side.

[0040] The lifting seat 4 is connected to the telescopic cylinder 3, and the left and right sides of the lifting seat 4 are slidably connected to the test frame 1;

[0041] There are two sets of clamping arms 5 arranged symmetrically. The clamping arms 5 pass through the slots on the lifting seat 4 and are hinged to the lifting seat 4. A torsion spring is press-fitted at the hinge of the clamping arms 5 and the lifting seat 4. The upper end of the clamping arms 5 is provided with a pressure plate 50, and the lower end of the clamping arms 5 is provided with a clamping block 51 for clamping the battery.

[0042] The rear end of the pressure frame 6 is hinged to the top rear side of the lifting seat 4. The front part of the pressure frame 6 is provided with a pressure rod 61, and the middle part of the pressure frame 6 is provided with a pressure block 60, which abuts against the pressure plate 50.

[0043] The two ends of the positioning rod 7 slide vertically along the test frame 1. The positioning rod 7 is located above the pressure frame 6 and is in the same position. The two ends of the positioning rod 7 are limited by the limit block 8 at the upper limit of the test frame 1.

[0044] As one implementation method in this embodiment, to enhance the protection effect during the testing process, such as... Figure 1 , Figure 3 , Figure 4 As shown, a safety tube 20 is provided at the hole at the top of the test chamber 2. The safety tube 20 is used for the battery to fall, and the safety tube 20 passes through the top of the test chamber 2.

[0045] As one implementation method in this embodiment, to facilitate observation of the test results and retrieval of the test battery, such as... Figure 1 and Figure 3 , Figure 4 As shown, the bottom of the test chamber 21 is hinged to the bottom of the test chamber 2, and the top of the test chamber 21 is connected to the test chamber 2 by a latch 24. The test chamber 21 is provided with a handle 23, and the bottom of the test chamber 21 is provided with an observation window 22 for observing the test results.

[0046] As one implementation method in this embodiment, to facilitate locking and opening of the compartment door 21, such as Figure 5 As shown, the latch 24 includes a plug 241 and a locking plate 242. The plug 241 can be inserted into the latch 24. The locking plate 242 is hinged to the latch 24, and a torsion spring is press-fitted between the locking plate 242 and the latch 24. The plug 241 and the locking plate 242 are engaged by interlocking teeth.

[0047] As one implementation method in this embodiment, to improve the stability of the lifting seat 4 during lifting, such as Figure 1 , Figure 3 , Figure 4 As shown, guide rails 10 are symmetrically arranged on the inner walls of the left and right sides of the test frame 1, and guide blocks 40 are symmetrically arranged on the left and right sides of the lifting seat 4. The guide blocks 40 slide vertically on the guide rails 10.

[0048] As one implementation method in this embodiment, to facilitate vertical or horizontal clamping of the battery, such as... Figure 4 , Figure 6As shown, the clamping block 51 has a vertical clamping groove 52 and a horizontal clamping groove 53 on the clamping surface. The vertical clamping groove 52 and the horizontal clamping groove 53 intersect each other. There is a gap between the vertical clamping groove 52 and the front part of the clamping block 51. The front edge of the gap has a rounded corner.

[0049] As one implementation method in this embodiment, to facilitate adjustment of the height of the positioning rod 7 and enhance its stability, such as Figure 1 , Figure 3 , Figure 4 , Figure 7 As shown, the test frame 1 is provided with symmetrical positioning grooves 11 on both sides, and an anti-slip surface 12 is provided on the outer side of the positioning grooves 11. The limiting block 8 is adapted to the anti-slip surface 12, and a limiting bolt 9 is threaded through the limiting block 8. The limiting bolt 9 is threaded to the end of the positioning rod 7.

[0050] As one implementation method in this embodiment, to facilitate smooth sliding when adjusting the height of the positioning rod 7, such as... Figure 7 As shown, the limiting block 8 is provided with a slider 80, and the end of the positioning rod 7 and the slider 80 are slidably connected in the positioning groove 11.

[0051] As one implementation method in this embodiment, to protect the pressure frame 6, such as... Figure 7 As shown, the bottom of the positioning rod 7 is provided with a pressure strip 70, which is made of rubber and corresponds to the position of the pressure frame 6.

[0052] The working principle of this practical system is as follows: Before conducting drop quality testing on nickel-metal hydride batteries, the operator first unscrews the limit bolt 9 to disengage the limit block 8 from the anti-slip surface 12. Then, the height of the positioning rod 7 is adjusted according to the test height. After determining the height, the limit bolt 9 is tightened, which presses the limit block 8 onto the anti-slip surface 12, fixing the position of the positioning rod 7. During this process, the slider 80 and the end of the positioning rod 7 slide in the positioning groove 11, which can maintain the stability of the trajectory of the limit block 8. Then, the insert 241 is inserted into the latch 24. The teeth of the insert 241 and the locking plate 242 are used to lock the door 21, ensuring that the test chamber 2 is in a closed state during the test. Then, the telescopic cylinder 3 is activated, and the telescopic rod 30 on the telescopic cylinder 3 extends, driving the lifting seat 4 connected to it to move downward. The guide blocks 40 on both sides of the lifting seat 4 slide vertically on the guide rails 10 symmetrically arranged on the inner wall of the test frame 1, ensuring that the lifting seat 4 descends smoothly. When the lifting seat 4 descends to a certain position, the extension cylinder 3 stops extending. The operator presses the pressure rod 61 at the front of the pressure frame 6. The pressure frame 6 rotates around its rear end at the hinge point on the top rear side of the lifting seat 4. The pressure block 60 in the middle of the pressure frame 6 then presses down on the bearing plate 50 at the upper end of the clamping arm 5, causing the clamping arm 5 to flip outward, so that the two clamping blocks 51 separate from each other. Depending on the test item, the battery can be fixed vertically or horizontally between the clamping blocks 51. When performing a vertical drop test, the battery is sent into the vertical clamping groove 52. When performing a horizontal drop test, the battery is sent into the horizontal clamping groove 53. Then, the pressure rod 61 is released. Under the action of the torsion spring, the clamping blocks 51 stably clamp the battery and maintain the test posture.

[0053] The test then begins. The telescopic cylinder 3 is activated to retract, and the telescopic rod 30 lifts the lifting seat 4. During this process, the pressure frame 6 also rises. When the pressure frame 6 contacts the pressure bar 70, as the telescopic rod 30 rises, the positioning rod 7 presses down the pressure frame 6 through the pressure bar 70. The clamping arm 5 then flips outward, and the clamping block 51 releases its grip on the battery. The battery maintains its original posture and falls, falling into the test chamber 2 through the safety tube 20. The safety tube 20 prevents the battery from being ejected from the test chamber 2 by impact. The test chamber 2 can provide protection in case the battery explodes or catches fire. At this time, the drop effect of the battery can be observed through the observation window 22 to ensure that the battery has not exploded or caught fire. Afterward, the locking plate 242 can be pressed to disengage the locking block between the locking plate 242 and the insertion block 241. Then, the handle 23 can be used to open the chamber door 21, and the battery can be taken out to observe the test results.

[0054] Record the test results and then repeat the above steps to perform multiple tests.

[0055] The electromechanical connections involved in this utility model are common practices used by those skilled in the art, and technical inspiration can be obtained through a limited number of experiments; they are common knowledge.

[0056] Components not described in detail in this article are existing technologies.

[0057] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 nickel-metal hydride battery quality testing device, characterized in that, include: Test frame (1), the test frame (1) is a portal frame, the top of the test frame (1) is provided with a telescopic cylinder (3), and the telescopic rod (30) on the telescopic cylinder (3) is set downward; Test chamber (2), the test chamber (2) is located below the test frame (1), the top of the test chamber (2) is provided with a hole for the battery to fall into, and the front side of the test chamber (2) is provided with a door (21); Lifting seat (4), the lifting seat (4) is connected to the telescopic cylinder (3), and the left and right sides of the lifting seat (4) are slidably connected to the test frame (1); Clamping arm (5), there are two sets of clamping arms (5) arranged symmetrically, the clamping arm (5) passes through the slot on the lifting seat (4) and is hinged to the lifting seat (4), a torsion spring is press-fitted at the hinge of the clamping arm (5) and the lifting seat (4), a pressure plate (50) is provided at the upper end of the clamping arm (5), and a clamping block (51) for clamping the battery is provided at the lower end of the clamping arm (5); A pressure frame (6) is provided, the rear end of which is hinged to the top rear side of the lifting seat (4). A pressure rod (61) is provided at the front of the pressure frame (6), and a pressure block (60) is provided in the middle of the pressure frame (6). The pressure block (60) abuts against the pressure plate (50). Positioning rod (7), the two ends of the positioning rod (7) slide vertically along the test frame (1), the positioning rod (7) is located above the pressure frame (6) and the positions are corresponding, the two ends of the positioning rod (7) are limited on the test frame (1) by limiting blocks (8).

2. The nickel-metal hydride battery quality testing device according to claim 1, characterized in that: A safety tube (20) is provided at the hole at the top of the test chamber (2). The safety tube (20) is used for the battery to fall into the test chamber (2). The safety tube (20) passes through the top of the test chamber (2).

3. The nickel-metal hydride battery quality testing device according to claim 1, characterized in that: The door (21) is hinged to the bottom of the test chamber (2), and the top of the door (21) is connected to the test chamber (2) by a latch (24). The door (21) is provided with a handle (23), and the lower part of the door (21) is provided with an observation window (22) for observing the test results.

4. The nickel-metal hydride battery quality testing device according to claim 3, characterized in that: The latch (24) includes a plug (241) and a locking plate (242). The plug (241) can be inserted into the latch (24). The locking plate (242) is hinged to the latch (24), and a torsion spring is press-fitted between the locking plate (24) and the latch (24). The plug (241) and the locking plate (242) are engaged by interlocking teeth.

5. The nickel-metal hydride battery quality testing device according to claim 1, characterized in that: The test frame (1) has guide rails (10) symmetrically arranged on the inner walls of the left and right sides, and the lifting seat (4) has guide blocks (40) symmetrically arranged on the left and right sides. The guide blocks (40) slide vertically on the guide rails (10).

6. The nickel-metal hydride battery quality testing device according to claim 1, characterized in that: The clamping block (51) has a vertical clamping groove (52) and a horizontal clamping groove (53) on its clamping surface. The vertical clamping groove (52) and the horizontal clamping groove (53) intersect each other. There is a gap between the vertical clamping groove (52) and the front part of the clamping block (51). The front edge of the gap has a rounded corner.

7. The nickel-metal hydride battery quality testing device according to claim 1, characterized in that: The test frame (1) is provided with symmetrical positioning grooves (11) on both sides. The outer side of the positioning groove (11) is provided with an anti-slip surface (12). The limiting block (8) is adapted to the anti-slip surface (12). A limiting bolt (9) is threaded through the limiting block (8). The limiting bolt (9) is threaded to the end of the positioning rod (7).

8. The nickel-metal hydride battery quality testing device according to claim 7, characterized in that: The limiting block (8) is provided with a slider (80), and the end of the positioning rod (7) and the slider (80) are slidably connected in the positioning groove (11).

9. The nickel-metal hydride battery quality testing device according to claim 1, characterized in that: The bottom of the positioning rod (7) is provided with a pressure strip (70), the pressure strip (70) is made of flexible material, and the pressure strip (70) corresponds to the position of the pressure frame (6).

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