Compressive strength detection device for electric vehicle battery pack metal plate box

Abstract

The utility model relates to the technical field of compressive strength detection, in particular to an electric vehicle battery pack sheet metal box compressive strength detection device, which comprises a base, an inserting rod is arranged on the surface of the lower pressing plate, a first limiting plate is arranged on the surface of the inserting rod, a second limiting plate is arranged on the surface of the first limiting plate, and an elastic plate is arranged on the surface of the first limiting plate; the cross rod is arranged at the end part of the inserting rod; the device has the beneficial effects that the sheet metal box is placed on the surface of the base, a lead screw in a supporting frame rotates to drive a lifting plate to descend, a lower pressing plate abuts against the surface of the sheet metal box, a telescopic rod moves, a spring is stretched, the compression resistance of the sheet metal box is detected, an inserting rod is inserted into an inserting hole, the inserting rod does not rotate, and the sheet metal box is prevented from being damaged. The first limiting plate and the second limiting plate play a role in limiting the metal plate boxes, the metal plate boxes are pushed to the middle positions, and the stressed and pressed positions of all the metal plate boxes are the same.

Description

Technical Field

[0001] The utility model relates to the field of compressive strength detection, in particular to a compressive strength detection device for a sheet metal box of an electric vehicle battery pack. Background Art

[0002] Power batteries, also known as energy storage systems, are one of the core components of vehicles such as electric vehicles and electric bicycles. They are responsible for providing continuous power output and driving capabilities for the vehicles.

[0003] In the prior art, the battery pack sheet metal box needs to undergo a compressive strength test after production to test the compressive strength of the sheet metal box;

[0004] However, the existing compressive strength testing device tests the compressive strength of the sheet metal box by pressing down and holding it on the surface of the sheet metal box. Since the position of the sheet metal box is not fixed, the position of the pressing component pressing down on the surface of the sheet metal box is not fixed, which affects the accuracy of the test. Utility Model Content

[0005] The purpose of the present utility model is to provide a device for detecting the compressive strength of a sheet metal box of an electric vehicle battery pack, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a device for detecting the compressive strength of a sheet metal box of an electric vehicle battery pack, comprising: a base, a support frame being provided on the top of the base;

[0007] A lower pressure plate, a plug rod is provided on the surface of the lower pressure plate, a first limit plate is provided on the surface of the plug rod, a second limit plate is provided on the surface of the first limit plate, and an elastic plate is provided on the surface of the first limit plate; and

[0008] The cross bar is arranged at the end of the plug-in rod.

[0009] Preferably, a lifting plate is provided on the surface of the support frame, and a screw rod is provided inside the support frame, and the screw rod is located inside the lifting plate.

[0010] Preferably, a horizontal plate is fixed to the bottom of the lifting plate, a telescopic rod is inserted into the surface of the horizontal plate, a spring is provided outside the telescopic rod, one end of the spring is connected to the end of the telescopic rod, and the other end is connected to the surface of the horizontal plate.

[0011] Preferably, a lower pressing plate is fixed to the bottom of the telescopic rod, and a sheet metal box is placed at the bottom of the lower pressing plate.

[0012] Preferably, a plug hole is opened on the surface of the lower pressure plate, a cross bar is plugged into the plug hole, a plug rod is fixed on the surface of the cross bar, the cross bar can move in the plug hole, the plug rod can be plugged into the plug hole, and a rubber strip is provided on the surface of the plug rod.

[0013] Preferably, a slide groove is provided on the surface of the lower pressure plate, a slider is provided in the slide groove, an elastic plate is provided on the surface of the slider, and the other end of the elastic plate is connected to the surface of the first limiting plate.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] The utility model proposes that the sheet metal box is placed on the surface of the base, the lifting plate is driven down by the rotation of the screw rod inside the support frame, the lower pressure plate is held on the surface of the sheet metal box, so that the telescopic rod moves, the spring is stretched, and is used to detect the compressive strength of the sheet metal box, the plug-in rod is plugged into the plug-in hole, so that the plug-in rod stops rotating, the first limit plate and the second limit plate play a limiting role on the sheet metal box, the sheet metal box is pushed to the middle position, so that the position where each group of sheet metal boxes is pressed downward is the same, when the first limit plate and the second limit plate are no longer needed to push the sheet metal box, the plug-in rod is pulled so that the plug-in rod is no longer plugged into the plug-in hole, the slider moves in the slide groove with the first limit plate, the first limit plate changes under the pull of the elastic plate, the first limit plate and the second limit plate rotate to the top of the lower pressure plate, so that the first limit plate and the second limit plate are quickly retracted, and under the pull of the elastic plate, the first limit plate and the second limit plate are stabilized on the top of the lower pressure plate, and will not affect the downward pressure work of the lower pressure plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 This is a partially enlarged structural diagram of the utility model;

[0018] Figure 3 for Figure 2 A magnified schematic diagram of the structure in the middle.

[0019] In the figure: base 1, support frame 2, lower pressure plate 3, lifting plate 4, cross plate 5, spring 6, telescopic rod 7, first limit plate 8, second limit plate 9, plug rod 10, rubber strip 11, plug hole 12, elastic plate 13, cross bar 14, slide groove 15, slider 16. DETAILED DESCRIPTION

[0020] In order to clearly and completely describe the purpose and technical solution of the present invention and make its advantages more clearly understood, the following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only part of the embodiments of the present invention, not all of them, and are only used to explain the embodiments of the present invention and are not intended to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figure 1-Figure 3 The utility model provides a technical solution: a compressive strength testing device for a sheet metal box of an electric vehicle battery pack, comprising: a base 1, a support frame 2 is provided on the top of the base 1, a lifting plate 4 is provided on the surface of the support frame 2, a screw rod is provided inside the support frame 2, the screw rod is located inside the lifting plate 4, a horizontal plate 5 is fixed to the bottom of the lifting plate 4, a telescopic rod 7 is plugged into the surface of the horizontal plate 5, a spring 6 is provided on the outside of the telescopic rod 7, one end of the spring 6 is connected to the end of the telescopic rod 7, and the other end is connected to the surface of the horizontal plate 5, A lower pressing plate 3 is fixed at the bottom, a sheet metal box is placed at the bottom of the lower pressing plate 3, a slide groove 15 is provided on the surface of the lower pressing plate 3, a slider 16 is provided in the slide groove 15, an elastic plate 13 is provided on the surface of the slider 16, the other end of the elastic plate 13 is connected to the surface of the first limiting plate 8, the slider 16 moves in the slide groove 15 as the first limiting plate 8 moves, the first limiting plate 8 changes under the pull of the elastic plate 13, the first limiting plate 8 and the second limiting plate 9 rotate to the top of the lower pressing plate 3, so that the first limiting plate 8 and the second limiting plate 9 are quickly retracted;

[0022] The lower pressure plate 3, the surface of the lower pressure plate 3 is provided with a plug rod 10, the surface of the plug rod 10 is provided with a first limit plate 8, the surface of the first limit plate 8 is provided with a second limit plate 9, the surface of the first limit plate 8 is provided with an elastic plate 13, the surface of the lower pressure plate 3 is provided with a plug hole 12, and a cross bar 14 is inserted in the plug hole 12, and the surface of the cross bar 14 is fixed with the plug rod 10, the cross bar 14 can move in the plug hole 12, and the plug rod 10 can be inserted into the plug hole 12, and the surface of the plug rod 10 is provided with a rubber strip 11, the plug rod 10 is inserted in the plug hole 12, so that the plug rod 10 no longer rotates, and the first limit plate 8 and the second limit plate 9 play a role in limiting the sheet metal box, pushing the sheet metal box to the middle position, so that the position where each group of sheet metal boxes is pressed down by force is the same; the cross bar 14 is provided at the end of the plug rod 10.

[0023] When in actual use, the sheet metal box is placed on the surface of the base 1, and the lifting plate 4 is driven to descend by the rotation of the screw rod inside the support frame 2. The lower pressure plate 3 is held on the surface of the sheet metal box, so that the telescopic rod 7 moves, and the spring 6 is stretched to detect the compressive capacity of the sheet metal box. The plug-in rod 10 is plugged into the plug-in hole 12, so that the plug-in rod 10 does not rotate. The first limit plate 8 and the second limit plate 9 play a role in limiting the sheet metal box, pushing the sheet metal box to the middle position, so that the position where each group of sheet metal boxes is pressed down by force is the same, and there is no need to use the first limit plate 8 and When the second limit plate 9 pushes the sheet metal box, the plug rod 10 is pulled so that the plug rod 10 is no longer inserted into the plug hole 12, and the slider 16 moves in the slide groove 15 along with the first limit plate 8. The first limit plate 8 changes under the pull of the elastic plate 13, and the first limit plate 8 and the second limit plate 9 rotate to the top of the lower pressure plate 3, realizing the rapid retraction of the first limit plate 8 and the second limit plate 9, and under the pull of the elastic plate 13, the first limit plate 8 and the second limit plate 9 are stabilized on the top of the lower pressure plate 3, which will not affect the downward pressure of the lower pressure plate 3.

[0024] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for testing the compressive strength of a sheet metal box of an electric vehicle battery pack, characterized in that: include: A base (1), wherein a support frame (2) is provided on the top of the base (1); A lower pressing plate (3), a plug rod (10) is provided on the surface of the lower pressing plate (3), a first limiting plate (8) is provided on the surface of the plug rod (10), a second limiting plate (9) is provided on the surface of the first limiting plate (8), and an elastic plate (13) is provided on the surface of the first limiting plate (8); and A cross bar (14) is arranged at the end of the plug-in rod (10).

2. The compressive strength testing device for a sheet metal box of an electric vehicle battery pack according to claim 1, characterized in that: A lifting plate (4) is provided on the surface of the support frame (2), and a screw rod is provided inside the support frame (2), and the screw rod is located inside the lifting plate (4).

3. The compressive strength testing device for the sheet metal box of an electric vehicle battery pack according to claim 2, characterized in that: A horizontal plate (5) is fixed to the bottom of the lifting plate (4), a telescopic rod (7) is inserted into the surface of the horizontal plate (5), a spring (6) is arranged outside the telescopic rod (7), one end of the spring (6) is connected to the end of the telescopic rod (7), and the other end is connected to the surface of the horizontal plate (5).

4. The compressive strength testing device for the sheet metal box of an electric vehicle battery pack according to claim 3, characterized in that: A lower pressing plate (3) is fixed to the bottom of the telescopic rod (7), and a sheet metal box is placed at the bottom of the lower pressing plate (3).

5. The compressive strength testing device for the sheet metal box of an electric vehicle battery pack according to claim 4, characterized in that: The surface of the lower pressure plate (3) is provided with a plug hole (12), a cross bar (14) is plugged into the plug hole (12), a plug rod (10) is fixed to the surface of the cross bar (14), the cross bar (14) can move in the plug hole (12), the plug rod (10) can be plugged into the plug hole (12), and a rubber strip (11) is provided on the surface of the plug rod (10).

6. The device for detecting the compressive strength of a sheet metal box of an electric vehicle battery pack according to claim 5, characterized in that: A slide groove (15) is provided on the surface of the lower pressure plate (3), a slider (16) is provided in the slide groove (15), an elastic plate (13) is provided on the surface of the slider (16), and the other end of the elastic plate (13) is connected to the surface of the first limit plate (8).

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