Electric tool battery pack impact test device

Abstract

The utility model discloses an electric tool battery pack impact test device, which relates to the field of battery testing and comprises a test board, a placement groove is formed in the top of the test board, an installation groove is formed in the test board, and a supporting assembly corresponding to the placement groove in position is movably installed in the installation groove. A protection frame located on the outer side of the containing groove is fixedly installed at the top of the test table, and a fire extinguishing water tank located below the containing groove is placed at the bottom of the test table. According to the utility model, the battery pack is placed above the supporting assembly in the placing groove, and the supporting assembly is used for supporting the battery pack and clamping and fixing the battery pack from the side surface; the impact adjusting assembly detects temperature change through the supporting assembly and controls the supporting assembly to be opened when the battery pack is tested to be on fire, so that the battery pack falls into the fire extinguishing water tank through the placing groove for rapid fire extinguishing, and therefore the device is safer to operate and better in practicability.

Description

Technical Field

[0001] The utility model relates to the field of battery testing, in particular to an impact testing device for a battery pack of an electric tool. Background Art

[0002] The battery pack is the power source of cordless power tools. It is widely used in various electric equipment. The battery pack contains multiple cells, which are fixed together by cell holders. Lithium-ion handheld power tools have been greatly developed in recent years. One of the important reasons is the advancement of lithium-ion technology and the reduction of costs. Power tools need to be equipped with a detachable battery pack. The existing technology has the following problems:

[0003] In the existing electric tool battery pack impact test device, in the actual impact test of the battery pack, the impact is applied to the battery pack through the impact block for testing. The impact block cannot be guided and the position cannot be flexibly adjusted, which may easily cause the battery pack to deviate and affect the test. At the same time, the battery pack may catch fire after the impact, which makes it inconvenient to quickly extinguish the fire. Utility Model Content

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0005] An impact test device for an electric tool battery pack comprises a test bench, wherein a placement slot is provided on the top of the test bench, an installation slot is provided inside the test bench, a support assembly corresponding to the position of the placement slot is movably installed inside the installation slot, a protective frame arranged outside the placement slot is fixedly installed on the top of the test bench, a fire extinguishing water tank is placed below the placement slot on the bottom of the test bench, and an impact adjustment assembly is fixedly installed at the rear of the top of the test bench.

[0006] A further improvement of the technical solution of the utility model lies in that: the supporting assembly includes two bidirectional threaded rods and two temperature sensors, the two bidirectional threaded rods are rotatably installed inside the mounting groove, the left sides of the two bidirectional threaded rods are fixedly connected with a transmission gear located outside the test bench, the outside of the transmission gear is movably installed with a transmission toothed belt, the right side of the test bench is fixedly installed with a driving motor connected to one of the bidirectional threaded rods, the left and right sides of the outside of the two bidirectional threaded rods are threadedly connected with sliding blocks, the inner side of the sliding block is provided with a supporting table surface, and the two temperature sensors are fixedly installed on the left and right sides of the inside of the protective frame respectively.

[0007] A further improvement of the technical solution of the utility model is that the impact adjustment component includes a support frame, a lifting screw is rotatably installed inside the support frame, a driving motor 2 connected to the lifting screw is fixedly installed on the top of the support frame, the lifting screw is threadedly connected to a sliding seat on the outside, an electromagnet is fixedly installed in front of the bottom of the sliding seat, an impact block is movably installed at the bottom of the electromagnet, and limit plates corresponding to the impact block are fixedly installed in front of the left and right sides of the sliding seat.

[0008] A further improvement of the technical solution of the utility model is that the two bidirectional threaded rods are symmetrically arranged front and back based on the placement groove.

[0009] A further improvement of the technical solution of the utility model is that the sliding block is internally movably connected with a guide column, the inner side of the guide column is fixedly connected with a clamping plate located in the support table, and the outer side of the guide column is movably sleeved with a support spring located between the clamping plate and the sliding block.

[0010] A further improvement of the technical solution of the utility model is that an opening and closing door is arranged on the front side of the protection frame, and the two temperature sensors are arranged in an up-and-down staggered manner.

[0011] A further improvement of the technical solution of the utility model is that a guide groove is provided on the inner side of the limit plate, and the impact block is movably connected to the inner side of the guide groove.

[0012] A further improvement of the technical solution of the utility model is that: the electromagnet is arranged right above the placement slot.

[0013] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0014] 1. The utility model provides an impact test device for a power tool battery pack, which places the battery pack above a support assembly in a placement slot, supports the battery pack through the support assembly and clamps it from the side, and detects temperature changes through the support assembly when testing the battery pack for fire through an impact adjustment assembly, controls the support assembly to open, and allows the battery pack to fall through the placement slot into a fire extinguishing water tank for rapid fire extinguishing, thereby making the operation of the device safer and more practical.

[0015] 2. The utility model provides an impact test device for a power tool battery pack. The impact adjustment component can flexibly adjust the height of the impact test and guide the impact position, thereby improving flexibility while ensuring the stability of the impact position. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the electric tool battery pack impact test device of the utility model;

[0017] Figure 2 It is a schematic diagram of the top view structure of the utility model;

[0018] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the support assembly of the utility model;

[0020] Figure 5 It is a structural schematic diagram of the impact adjustment component of the utility model.

[0021] In the figure: 1. test bench; 11. installation slot; 2. placement slot; 3. support assembly; 31. bidirectional threaded rod; 32. transmission gear; 33. transmission belt; 34. drive motor one; 35. sliding block; 36. support table; 37. guide column; 38. splint; 39. support spring; 310. temperature sensor; 4. protection frame; 5. fire extinguishing water tank; 6. impact adjustment assembly; 61. support frame; 62. lifting screw; 63. drive motor two; 64. sliding seat; 65. electromagnet; 66. impact block; 67. limit plate; 68. guide slot. DETAILED DESCRIPTION

[0022] The utility model is further described in detail below:

[0023] like Figures 1 to 5 As shown, the utility model provides an impact test device for a power tool battery pack, comprising a test bench 1, a placement slot 2 is provided on the top of the test bench 1, a mounting slot 11 is provided inside the test bench 1, a support assembly 3 corresponding to the position of the placement slot 2 is movably installed inside the mounting slot 11, a protective frame 4 arranged outside the placement slot 2 is fixedly installed on the top of the test bench 1, a fire extinguishing water tank 5 located below the placement slot 2 is placed on the bottom of the test bench 1, and an impact adjustment assembly 6 is fixedly installed at the rear of the top of the test bench 1.

[0024] By placing the battery pack above the support assembly 3 in the placement slot 2, the support assembly 3 provides support for the battery pack and clamps it from the side. When the battery pack is tested for fire, the impact adjustment assembly 6 detects temperature changes through the support assembly 3 and controls the support assembly 3 to open so that the battery pack falls through the placement slot 2 into the fire extinguishing water tank 5 for rapid fire extinguishing, thereby making the operation of the device safer and more practical. At the same time, the impact adjustment assembly 6 can flexibly adjust and guide the height of the impact test, thereby improving flexibility while ensuring the stability of the striking position.

[0025] like Figure 3 and Figure 4As shown, the support assembly 3 includes two bidirectional threaded rods 31 and two temperature sensors 310. The two bidirectional threaded rods 31 are rotatably installed inside the installation groove 11. The left sides of the two bidirectional threaded rods 31 are fixedly connected with a transmission gear 32 located on the outside of the test bench 1, and a transmission belt 33 is movably installed outside the transmission gear 32. A driving motor 34 connected to one of the bidirectional threaded rods 31 is fixedly installed on the right side of the test bench 1. The left and right sides of the outside of the two bidirectional threaded rods 31 are threadedly connected with sliding blocks 35, and a supporting table surface 36 is provided on the inner side of the sliding block 35. The two temperature sensors 310 are fixedly installed on the left and right sides of the inside of the protective frame 4, respectively.

[0026] By placing the battery pack to be tested on the support table 36 inside the sliding block 35 in the placement groove 2, when the battery pack leaks and the internal temperature rises and catches fire, the temperature is detected by the temperature sensor 310 located in the protective frame 4, and the driving motor 34 is controlled to drive one of the two-way threaded rods 31 to rotate, and the rotation of the two-way threaded rod 31 drives the transmission gear 32 at the other end to rotate, and the transmission gear 32 cooperates with the transmission toothed belt 33 to drive the other two-way threaded rod 31 to rotate synchronously, and the rotation of the two-way threaded rod 31 drives the sliding block 35 to move outward along the inside of the installation groove 11, and the support table 36 is moved out of the bottom of the battery pack by the outward movement of the sliding block 35, so that the battery pack falls into the fire extinguishing water tank 5 for rapid fire extinguishing, thereby making the operation of the device safer and more practical.

[0027] like Figure 5 As shown, the impact adjustment component 6 includes a support frame 61, a lifting screw 62 is rotatably installed inside the support frame 61, a driving motor 63 connected to the lifting screw 62 is fixedly installed on the top of the support frame 61, the lifting screw 62 is threadedly connected to a sliding seat 64 on the outside, an electromagnet 65 is fixedly installed in front of the bottom of the sliding seat 64, an impact block 66 is movably installed at the bottom of the electromagnet 65, and limit plates 67 corresponding to the impact block 66 are fixedly installed in front of the left and right sides of the sliding seat 64.

[0028] By controlling the driving motor 2 63 to drive the lifting screw 62 to rotate, the sliding seat 64 is driven to move up and down to adjust the release height, and then the electromagnet 65 is disconnected to make the impact block 66 adsorbed at the bottom detach from the electromagnet 65, slide down along the guide groove 68 on the inner side of the limit plate 67 and hit the battery pack for testing, so that the sliding seat 64 moves up and down along the lifting screw 62 to adjust the impact height and cooperate with the limit plate 67 to guide the impact block 66 to prevent it from being hit off, thereby improving flexibility and ensuring the stability of the impact position.

[0029] like Figure 2 and Figure 4 As shown, the two bidirectional threaded rods 31 are symmetrically arranged front and back based on the placement groove 2.

[0030] The bidirectional threaded rod 31 located in the installation groove 11 and symmetrically arranged based on the placement groove 2 is used to drive the sliding block 35 to move to support the battery pack.

[0031] like Figure 4 As shown, the sliding block 35 is internally movably connected to a guide column 37, the inner side of the guide column 37 is fixedly connected to a clamping plate 38 located in the support table 36, and the outer side of the guide column 37 is movably sleeved with a support spring 39 located between the clamping plate 38 and the sliding block 35.

[0032] The sliding blocks 35 on both sides are moved inwards to make the clamping plate 38 contact the side of the battery pack and squeeze the supporting spring 39 to make the guide column 37 move outwards to clamp the battery pack to ensure stability.

[0033] like Figure 1 and Figure 3 As shown, an opening and closing door is provided on the front side of the protection frame 4, and two temperature sensors 310 are arranged in an up-and-down staggered manner.

[0034] The two temperature sensors 310 are staggered in an upper and lower position to facilitate detection of the temperature at different positions of the battery pack, thereby improving accuracy.

[0035] like Figure 2 and Figure 5 As shown, a guide groove 68 is formed on the inner side of the limiting plate 67 , and the impact block 66 is movably engaged with the inner side of the guide groove 68 .

[0036] The electromagnet 65 is located just above the placement slot 2 .

[0037] The impact block 66 is movably connected to the inner side of the guide groove 68 so that the impact block 66 can slide down quickly in the guide groove 68 under the force of gravity to guide it, thereby preventing it from deflecting and accurately hitting it into the placement groove 2.

[0038] The following is a detailed description of the working principle of the electric tool battery pack impact test device.

[0039] like Figures 1 to 5As shown, the battery pack to be tested is placed on the support table 36 inside the sliding block 35 in the placement groove 2, and one of the two-way threaded rods 31 is driven to rotate by controlling the driving motor 1 34, and the rotation of the two-way threaded rod 31 drives the transmission gear 32 at the other end to rotate, and the transmission gear 32 cooperates with the transmission toothed belt 33 to drive the other two-way threaded rod 31 to rotate synchronously, and the rotation of the two-way threaded rod 31 drives the sliding block 35 to move inward along the inside of the installation groove 11, and the sliding blocks 35 on both sides move inward to make the clamping plate 38 contact the side of the battery pack and squeeze the support spring 39 to make the guide column 37 move outward to clamp the battery pack. By controlling the driving motor 2 63 to drive the lifting screw 62 to rotate and drive the sliding seat 64 to move up and down to adjust the release height, the electromagnet 65 is disconnected to make the impact block 66 adsorbed at the bottom detach from the electromagnet 65, slide down along the guide groove 68 on the inner side of the limit plate 67 and hit the battery pack for testing. When the battery pack leaks and the internal temperature rises and catches fire, the temperature is detected by the temperature sensor 310 located in the protective frame 4 and the driving motor 1 34 is controlled to drive the bidirectional threaded rod 31 to rotate and drive the sliding blocks 35 on both sides to move outward. The outward movement of the sliding block 35 causes the supporting table 36 to move out of the bottom of the battery pack, so that the battery pack falls into the fire extinguishing water tank 5 for rapid fire extinguishing.

[0040] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. An impact test device for a power tool battery pack, comprising a test bench (1), characterized in that: The top of the test bench (1) is provided with a placement groove (2), the interior of the test bench (1) is provided with an installation groove (11), a support assembly (3) corresponding to the position of the placement groove (2) is movably installed inside the installation groove (11), a protection frame (4) arranged outside the placement groove (2) is fixedly installed on the top of the test bench (1), a fire extinguishing water tank (5) located below the placement groove (2) is placed on the bottom of the test bench (1), and an impact adjustment assembly (6) is fixedly installed at the rear of the top of the test bench (1).

2. The electric tool battery pack impact test device according to claim 1, characterized in that: The support assembly (3) comprises two bidirectional threaded rods (31) and two temperature sensors (310). The two bidirectional threaded rods (31) are rotatably mounted inside the mounting groove (11). The left sides of the two bidirectional threaded rods (31) are fixedly connected to a transmission gear (32) located outside the test bench (1). A transmission toothed belt (33) is movably mounted outside the transmission gear (32). A drive motor (34) connected to one of the bidirectional threaded rods (31) is fixedly mounted on the right side of the test bench (1). The left and right sides of the outside of the two bidirectional threaded rods (31) are threadedly connected to sliding blocks (35). A support table surface (36) is provided inside the sliding block (35). The two temperature sensors (310) are fixedly mounted on the left and right sides of the inside of the protective frame (4), respectively.

3. The electric tool battery pack impact test device according to claim 2, characterized in that: The impact adjustment component (6) comprises a support frame (61), a lifting screw (62) is rotatably installed inside the support frame (61), a driving motor (63) connected to the lifting screw (62) is fixedly installed on the top of the support frame (61), the lifting screw (62) is externally threadedly connected to a sliding seat (64), an electromagnet (65) is fixedly installed in front of the bottom of the sliding seat (64), an impact block (66) is movably installed at the bottom of the electromagnet (65), and limit plates (67) corresponding to the impact block (66) are fixedly installed in front of the left and right sides of the sliding seat (64).

4. The electric tool battery pack impact test device according to claim 2, characterized in that: The two bidirectional threaded rods (31) are symmetrically arranged front and back based on the placement groove (2).

5. The electric tool battery pack impact test device according to claim 2, characterized in that: The sliding block (35) is internally movably connected to a guide column (37), the inner side of the guide column (37) is fixedly connected to a clamping plate (38) located inside the support table (36), and the outer side of the guide column (37) is movably sleeved with a support spring (39) located between the clamping plate (38) and the sliding block (35).

6. The electric tool battery pack impact test device according to claim 2, characterized in that: An opening and closing door is arranged on the front side of the protection frame (4), and the two temperature sensors (310) are arranged in an up-and-down staggered manner.

7. The electric tool battery pack impact test device according to claim 3, characterized in that: A guide groove (68) is provided on the inner side of the limiting plate (67), and the impact block (66) is movably engaged with the inner side of the guide groove (68).

8. The electric tool battery pack impact test device according to claim 3, characterized in that: The electromagnet (65) is located directly above the placement slot (2).

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