Linear impact system for extrusion test of power storage battery

Abstract

The utility model discloses a linear impact system for a power storage battery extrusion test. In the utility model, the linear impact system for the extrusion test of the power storage battery comprises a track which extends towards the direction of a sample to be tested and comprises a pair of track plates which are separated along the direction vertical to the extension direction of the track; the track plate comprises a vertical guide plate and a horizontal guide plate connected with the vertical guide plate; the movable trolley comprises a trolley body, a mounting frame connected with the trolley body, and a guide wheel and a baffle plate which are connected with the mounting frame; the guide wheel comprises a connecting shaft connected with the mounting frame and a wheel body rotationally connected with the connecting shaft; the wheel body is located between the pair of horizontal guide plates and moves along at least one horizontal guide plate; the baffle is located below the wheel body and horizontally extends, and at least part of the baffle extends to the position below the pair of horizontal guide plates and is separated from the horizontal guide plates. The front end of the movable trolley is prevented from rising or the rear end of the movable trolley is prevented from rising.

Description

Technical Field

[0001] The utility model relates to the field of electric vehicles, in particular to a linear impact system for a power battery extrusion test. Background Art

[0002] With the rapid development of my country's electric vehicle industry, the production and sales of electric vehicles are growing rapidly, and the electrical safety of electric vehicles has attracted more and more attention. The battery pack of electric vehicles is affected by external forces such as impact and extrusion, which causes the battery pack shell to deform, leading to internal thermal runaway and causing electric vehicle fires. It is very necessary to test the extreme anti-extrusion and anti-deformation capabilities of power batteries.

[0003] For the linear impact test of power batteries, the equipment currently used is a linear impact device and a linear impact system for power batteries. The traction system drives the tractor to push the mobile trolley toward the direction of the sample to be tested. The mobile trolley decelerates and brakes through its own guide wheels and damping mechanism, so that the guide mobile frame with the impact block can slide freely and impact the sample in a fixed state. In the existing mobile trolley impact process, there are problems such as the height deviation of the center of mass of the mobile trolley and the stability of the collapse and deformation of the energy absorbing tube, which will cause the front end of the guide mobile frame to rise or the rear end of the guide mobile frame to warp, and the guide impactor will be offset, resulting in a large offset of the test impact point, which affects the test results. Utility Model Content

[0004] The utility model aims to provide a linear impact system for a power storage battery extrusion test, so as to prevent the front end of a moving trolley from rising or the rear end of the moving trolley from warping up.

[0005] In order to solve the above technical problems, the embodiment of the utility model provides a linear impact system for power battery extrusion test, comprising:

[0006] A track, the track extending toward the direction of the sample to be tested, the track comprising: a pair of track plates spaced apart in a direction perpendicular to the extension direction of the track; the track plates comprising: a vertical guide plate, and a horizontal guide plate connected to the vertical guide plate, the horizontal guide plate in one of the track plates extending horizontally toward the direction of the horizontal guide plate in the other track plate; and

[0007] A mobile trolley moves along a track, and the mobile trolley includes: a trolley body, a mounting frame connected to the trolley body, and a guide wheel and a baffle connected to the mounting frame; the guide wheel includes: a connecting shaft connected to the mounting frame, and a wheel body rotatably connected to the connecting shaft; the wheel body is located between a pair of horizontal guide plates and moves along at least one of the horizontal guide plates; the baffle is located below the wheel body, and the baffle extends horizontally and at least partially extends to below the pair of horizontal guide plates, and is separated from the horizontal guide plates.

[0008] Compared with the prior art, the implementation method of the utility model is that the mobile trolley moves along the track, and the guide wheel is guided by the horizontal guide plate. At the same time, a baffle is arranged opposite to the horizontal guide plate. When the mobile trolley brakes, the horizontal guide plate resists the baffle to prevent the front end of the mobile trolley from rising or the rear end of the mobile trolley from warping up.

[0009] In one embodiment, the mounting frame comprises: a first plate body connected to the bottom of the trolley body, a support frame body opposite to the first plate body and extending toward the track, and a second plate body connected to the support frame body and spaced apart from the first plate body; the connecting shaft is connected to the second plate body and extends toward the track, and the wheel body is located below the second plate body;

[0010] The mounting frame includes: a pair of support plates spaced apart from each other along the extension direction of the track, the pair of support plates are respectively connected to the front and rear ends of the second plate body, and the support plates extend longitudinally; the baffle is connected to one end of the pair of support plates away from the second plate body.

[0011] In one embodiment, the support plate is spaced apart from the pair of horizontal guide plates.

[0012] In one embodiment, the bottom ends of the pair of support frames have clamping openings for clamping the second plate.

[0013] In one embodiment, a plurality of beams are connected between a pair of the support frames.

[0014] In one embodiment, a plurality of guide wheels are connected to one mounting frame; one horizontal guide plate guides at least one guide wheel, and one guide wheel moves along one horizontal guide plate.

[0015] In one embodiment, the mounting frames are multiple and are arranged and spaced apart along the extension direction of the track, and each mounting frame is provided with multiple guide wheels;

[0016] The baffle is connected to at least two of the mounting frames.

[0017] In one embodiment, the connecting shaft and the wheel body are both separated from the baffle.

[0018] In one embodiment, the mobile trolley further comprises: an extension platform detachably connected to the trolley body;

[0019] The side of the trolley body along the extension direction of the track has a plurality of plug-in ports for plugging in the extension platform.

[0020] In one embodiment, the linear impact system further comprises: an impact head and an impactor detachably connected to the front end mounting plate of the mobile trolley, the impact head being used to cooperate with the damping device to lock the mobile trolley, and the impactor being used to impact the sample to be tested;

[0021] The baffle is located at the rear end of the moving trolley. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of a linear impact system according to an embodiment of the utility model;

[0023] Figure 2 It is a structural schematic diagram of a mobile trolley according to an embodiment of the utility model;

[0024] Figure 3 yes Figure 2 A partial enlarged view of middle A;

[0025] Figure 4 is a structural schematic diagram of a linear impact system according to another angle of an embodiment of the utility model;

[0026] Among them, 100, linear impact system; 1, track; 11, track plate; 111, vertical guide plate; 112, horizontal guide plate; 2, mobile trolley; 21, trolley body; 22, mounting frame; 221, first plate body; 222, support frame body; 223, second plate body; 224, support plate; 23, guide wheel; 231, connecting shaft; 232, wheel body; 24, baffle; 3, crossbeam; 4, plug interface; 5, mounting plate. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the utility model clearer, the various embodiments of the utility model will be described in detail below with reference to the accompanying drawings. However, it can be understood by those skilled in the art that in the various embodiments of the utility model, many technical details are provided in order to enable readers to better understand the present application. However, even without these technical details and various changes and modifications based on the following embodiments, the technical schemes claimed for protection in the claims of the present application can be implemented.

[0028] Unless the context requires otherwise, throughout the specification and claims, the word "comprise" and variations such as "include" and "have" should be construed in an open, inclusive sense, ie, should be interpreted as "including, but not limited to."

[0029] The following will be combined with the accompanying drawings to describe the various embodiments of the present invention in detail, so as to more clearly understand the purpose, characteristics and advantages of the present invention. It should be understood that the embodiments shown in the accompanying drawings are not intended to limit the scope of the present invention, but are only intended to illustrate the essential spirit of the technical solution of the present invention.

[0030] References throughout the specification to "one embodiment" or "an embodiment" indicate that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, the appearances of "in one embodiment" or "in an embodiment" in various places throughout the specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any manner in one or more embodiments.

[0031] As used in this specification and the appended claims, the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. It should be noted that the term "or" is generally employed in its sense including "and / or" unless the context clearly dictates otherwise.

[0032] In the following description, in order to clearly demonstrate the structure and working mode of the utility model, many directional words will be used for description, but the words "front", "back", "left", "right", "outside", "inside", "outward", "inward", "up", "down", etc. should be understood as convenient terms and should not be understood as restrictive terms.

[0033] Embodiments of the present invention are described below with reference to the accompanying drawings.

[0034] One embodiment of the present invention relates to a linear impact system 100 for a power battery extrusion test. Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, the linear impact system 100 for power battery extrusion test includes: a track 1 and a mobile trolley 2. An impact head is arranged at the front end of the mobile trolley 2, and the impact head is mounted on the mounting plate 5 and is detachably connected to the mounting plate 5. An impactor can also be arranged on the mobile trolley 2, and the impactor impacts the sample to be tested. A damping device is arranged at the front end of the track 1, and is used to lock the mobile trolley 2. The damping device has a cavity for inserting the impact head. The mobile trolley 2 moves forward until the impact head is inserted into the cavity of the damping device, and the mobile trolley 2 stops moving. At this time, the impactor moves toward the direction of the sample to be tested and impacts the sample to be tested. The sample to be tested can be a power battery of an electric vehicle. The track 1 extends toward the direction of the sample to be tested, and the track 1 includes: a pair of track plates 11 spaced apart along a direction perpendicular to the extension direction of the track 1. The track plate 11 includes: a vertical guide plate 111, and a horizontal guide plate 112 connected to the vertical guide plate 111, and the horizontal guide plate 112 in one track plate 11 extends horizontally toward the direction of the horizontal guide plate 112 in the other track plate 11. The mobile trolley 2 moves along the track 1. The mobile trolley 2 includes: a trolley body 21, a mounting frame 22 connected to the trolley body 21, and a guide wheel 23 and a baffle 24 connected to the mounting frame 22; the guide wheel 23 includes: a connecting shaft 231 connected to the mounting frame 22, and a wheel body 232 rotatably connected to the connecting shaft 231. The wheel body 232 is located between a pair of horizontal guide plates 112 and moves along at least one horizontal guide plate 112. The baffle 24 is located below the wheel body 232, and the baffle 24 extends horizontally and at least partially extends to the bottom of the pair of horizontal guide plates 112, and is separated from the horizontal guide plates 112. The vertical guide plate 111 and the horizontal guide plate 112 can be an integral part, and the track plate 11 is bent to form the horizontal guide plate 112.

[0035] The mobile trolley 2 moves along the track 1, and the guide wheel 23 is guided by the horizontal guide plate 112. At the same time, a baffle 24 is arranged opposite to the horizontal guide plate 112. When the mobile trolley 2 brakes, the horizontal guide plate 112 resists the baffle 24 to prevent the front end of the mobile trolley 2 from rising or the rear end of the mobile trolley 2 from warping up.

[0036] The implementation details of this embodiment are described in detail below. The following content is only provided for easy understanding of the implementation details and is not necessary for implementing this solution.

[0037] Furthermore, if Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, the mounting frame 22 includes: a first plate body 221 connected to the bottom of the trolley body 21, a support frame body 222 opposite to the first plate body 221 and extending toward the track 1, and a second plate body 223 connected to the support frame body 222 and spaced apart from the first plate body 221. A connecting shaft 231 is connected to the second plate body 223 and extends toward the track 1, and a wheel body 232 is located below the second plate body 223. The mounting frame 22 includes: a pair of support plates 224 spaced apart from each other along the extension direction of the track 1, the pair of support plates 224 are respectively connected to the front and rear ends of the second plate body 223, and the support plates 224 extend longitudinally. The baffle 24 is connected to one end of the pair of support plates 224 away from the second plate body 223.

[0038] In addition, the support plate 224 is spaced apart from the pair of horizontal guide plates 112 .

[0039] Furthermore, if Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the bottom ends of the pair of support frames 222 have clamping openings for clamping the second plate 223 .

[0040] Furthermore, if Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, a pair of support frames 222 are connected with a plurality of cross beams 3. Thus, the support frames 222 are more solid, and when the mobile trolley 2 tends to flip up, the baffle 24 can be blocked by the horizontal guide plate 112, and the support frames 222 will not be deformed, and the mobile trolley 2 can bear the weight and be more stable.

[0041] Furthermore, if Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, a plurality of guide wheels 23 are connected to a mounting frame 22, a horizontal guide plate 112 guides at least one guide wheel 23, and a guide wheel 23 moves along a horizontal guide plate 112. As shown in the figure, three guide wheels 23 are arranged on a mounting frame 22, two of which are guided by a horizontal guide plate 112, and another guide wheel 23 is guided by another horizontal guide plate 112, and the guide wheels 23 are arranged in a staggered manner, which makes the overall layout more reasonable and will not interfere with each other.

[0042] In addition, if Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, there are a plurality of mounting frames 22 arranged and spaced apart along the extension direction of the track 1, and a plurality of guide wheels 23 are disposed on each mounting frame 22. At least two mounting frames 22 are connected with baffles 24.

[0043] Furthermore, if Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the connecting shaft 231 and the wheel body 232 are both separated from the baffle 24 .

[0044] In addition, if Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the mobile trolley 2 also includes an extension plate detachably connected to the trolley body. The side of the trolley body along the extension direction of the track 1 has a plurality of plug-in ports 4 for plugging in the extension plate. Thus, the carrying area of ​​the mobile trolley 2 can be expanded.

[0045] Furthermore, if Figure 4 As shown, the baffle 24 is located at the rear end of the mobile trolley 2. As shown in the figure, two spaced baffles 24 are arranged at the rear end, so that the area of ​​the baffle 24 is not too large, it is not easy to bend, and the strength is greater.

[0046] Preferred embodiments of the present invention have been described in detail above, but it should be understood that aspects of the embodiments can be modified, if necessary, to employ aspects, features and concepts of the various patents, applications and publications to provide further embodiments.

[0047] These and other changes can be made to the embodiments in light of the above detailed description.In general, in the claims, the terms used should not be considered limited to the specific embodiments disclosed in the specification and the claims, but should be construed to include all possible embodiments along with the full scope of equivalents to which these claims are entitled.

[0048] Those skilled in the art will appreciate that the above-mentioned embodiments are specific examples for implementing the present invention, and in actual applications, various changes may be made thereto in form and detail without departing from the spirit and scope of the present invention.

Claims

1. A linear impact system for power battery extrusion test, characterized in that: include: A track, the track extending toward the direction of the sample to be tested, the track comprising: a pair of track plates spaced apart in a direction perpendicular to the extension direction of the track; the track plates comprising: a vertical guide plate, and a horizontal guide plate connected to the vertical guide plate, the horizontal guide plate in one of the track plates extending horizontally toward the direction of the horizontal guide plate in the other track plate; and A mobile trolley moves along a track, and the mobile trolley includes: a trolley body, a mounting frame connected to the trolley body, and a guide wheel and a baffle connected to the mounting frame; the guide wheel includes: a connecting shaft connected to the mounting frame, and a wheel body rotatably connected to the connecting shaft; the wheel body is located between a pair of horizontal guide plates and moves along at least one of the horizontal guide plates; the baffle is located below the wheel body, and the baffle extends horizontally and at least partially extends to below the pair of horizontal guide plates, and is separated from the horizontal guide plates.

2. The linear impact system for power battery extrusion test according to claim 1, characterized in that: The mounting frame comprises: a first plate body connected to the bottom of the trolley body, a support frame body opposite to the first plate body and extending toward the track, and a second plate body connected to the support frame body and spaced apart from the first plate body; the connecting shaft is connected to the second plate body and extends toward the track, and the wheel body is located below the second plate body; The mounting frame includes: a pair of support plates spaced apart from each other along the extension direction of the track, the pair of support plates are respectively connected to the front and rear ends of the second plate body, and the support plates extend longitudinally; the baffle is connected to one end of the pair of support plates away from the second plate body.

3. The linear impact system for power battery extrusion test according to claim 2, characterized in that: The support plate is spaced apart from the pair of horizontal guide plates.

4. The linear impact system for power battery extrusion test according to claim 2, characterized in that: The bottom ends of a pair of the supporting frames have clamping openings for clamping the second plate.

5. The linear impact system for power battery extrusion test according to claim 2, characterized in that: A plurality of cross beams are connected between a pair of the support frames.

6. The linear impact system for power battery extrusion test according to claim 1, characterized in that: A plurality of guide wheels are connected to one of the mounting frames; one of the horizontal guide plates guides at least one of the guide wheels, and one of the guide wheels moves along one of the horizontal guide plates.

7. The linear impact system for power battery extrusion test according to claim 1, characterized in that: The mounting frames are multiple and arranged and spaced along the extension direction of the track, and each mounting frame is provided with multiple guide wheels; The baffle is connected to at least two of the mounting frames.

8. The linear impact system for power battery extrusion test according to claim 1, characterized in that: The connecting shaft and the wheel body are both separated from the baffle.

9. The linear impact system for power battery extrusion test according to claim 1, characterized in that: The mobile trolley further comprises: an extension platform detachably connected to the trolley body; The side of the trolley body along the extension direction of the track has a plurality of plug-in ports for plugging in the extension platform.

10. The linear impact system for power battery extrusion test according to claim 1, characterized in that: The linear impact system further comprises: an impact head and an impactor detachably connected to the front end mounting plate of the mobile trolley, the impact head being used to cooperate with the damping device to lock the mobile trolley, and the impactor being used to impact the sample to be tested; The baffle is located at the rear end of the moving trolley.

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