Battery pack reliability test system

Abstract

The utility model discloses a battery pack reliability test system which comprises a vibration table and an environment test box, the environment test box covers a horizontal sliding table, an upper cover of the environment test box is connected with an upper cover driving mechanism, and a locking device is arranged in the environment test box and used for fixing a battery pack on the horizontal sliding table. According to the test system for the reliability test of the battery pack, the smoke alarm is arranged in the environment test box, whether the battery pack is burnt and ignited in the environment test box or not can be detected in real time through the smoke alarm, and when the battery pack is burnt and ignited, the controller can control the vibration table to automatically stop working; and meanwhile, the upper cover of the environment test box is controlled to be quickly opened, the locking device is quickly unlocked, the battery pack on fire is taken out of the environment test box, or the spraying device is controlled to spray and extinguish the battery pack, so that the safe and reliable operation of the test system is ensured.

Description

Technical Field

[0001] The utility model relates to a reliability environmental test, in particular to a device for performing a reliability environmental test on a battery pack. Background Art

[0002] Reliability testing refers to the determination and verification of product reliability through testing. The research aims to identify the weak links of products with limited samples, time and usage costs. Reliability testing is a general term for various tests conducted to understand, evaluate, analyze and improve the reliability of products. Reliability testing has been widely used in the production and development of products. In the process of realizing the reliability of battery packs, it is necessary to conduct multiple comprehensive tests such as temperature, vibration, and humidity at the same time. During the test, test equipment such as vibration tables and environmental test chambers are required.

[0003] During the reliability test of the battery pack, due to the characteristics of the battery pack itself, it is sometimes easy to burn and catch fire during the test. It is easy to cause damage to the vibration table and environmental test chamber during the test. In serious cases, the test equipment may even be burned. Therefore, it is necessary to improve the existing test system specifically for the reliability test of the battery pack to meet the reliability test requirements of the battery pack. Utility Model Content

[0004] In order to overcome the above-mentioned deficiencies in the prior art, the purpose of the present utility model is to provide a battery pack reliability test system which is safe and reliable to use and can effectively prevent the loss of test equipment after the battery pack catches fire.

[0005] A battery pack reliability test system, comprising: a vibration table, wherein the vibration table comprises a vibration generator and a horizontal slide, wherein the vibration generator is connected to the horizontal slide, and wherein the vibration generator drives the horizontal slide to move; an environmental test chamber, wherein the environmental test chamber cover is arranged on the horizontal slide, wherein the bottom of the environmental test chamber and the horizontal slide are sealed by a sealing film, and the upper cover of the environmental test chamber is connected to an upper cover driving mechanism, and the driving mechanism can drive the upper cover to open or close; a plurality of locking devices, wherein the locking devices are used to fix the battery pack on the horizontal slide, wherein the locking devices comprise a hydraulic cylinder and a pressing mechanism, wherein the hydraulic cylinder is connected to the pressing mechanism, and drives the pressing mechanism to press the battery pack; a smoke alarm sensor, wherein the smoke alarm sensor is installed in the environmental test chamber; and a controller, wherein the controller is connected to the vibration generator, the upper cover driving mechanism, the hydraulic cylinder and the smoke alarm.

[0006] Preferably, the downward pressing structure includes a support frame and a rocker arm, the middle part of the rocker arm is hinged on the support frame, one end of the rocker arm is a clamping end, the other end of the rocker arm is provided with a roller, and a ramp block is provided below the roller, and the ramp block is connected to the hydraulic cylinder through a piston rod.

[0007] Preferably, the pressing end forms a hook-shaped pressing portion.

[0008] Preferably, the upper cover of the environmental test box is also provided with a spray device.

[0009] Preferably, an annular groove is provided on the surface of the horizontal slide, and a deep hole is provided in the annular groove to be connected with the guide pipe.

[0010] Preferably, it further comprises a lifting and transporting device, and the lifting and transporting device is arranged outside the environmental testing box.

[0011] The above technical solution has the following beneficial effects: the battery pack reliability test system is equipped with a smoke alarm in the environmental test chamber. The smoke alarm can detect in real time whether the battery pack is burning or catching fire in the environmental test chamber. When the battery pack is burning or catching fire, the controller can control the vibration table to automatically stop working, and at the same time control the upper cover of the environmental test chamber to open quickly and the locking device to unlock quickly, so as to take the burning battery pack out of the environmental test chamber, or control the spray device to spray the battery pack to extinguish the fire, thereby ensuring the safe and reliable operation of the test system. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model.

[0013] Figure 2 It is a schematic diagram of the structure when the upper cover of the embodiment of the utility model is opened.

[0014] Figure 3 It is a schematic structural diagram of the locking device of an embodiment of the utility model.

[0015] Figure 4 It is a structural schematic diagram of another embodiment of the utility model.

[0016] Component number explanation: 1. Vibration generator; 2. Horizontal slide; 3. Environmental test chamber; 31. Upper cover; 4. Locking device; 41. Hydraulic cylinder; 42. Piston rod; 43. Inclined block; 44. Roller; 45. Support frame; 46. Rocker arm; 5. Battery pack; 6. Lifting wire rope; 7. Spray device; 8. Flow guide pipe. DETAILED DESCRIPTION

[0017] The following is a description of the implementation of the present invention by means of specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0018] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as being limited to the examples set forth herein; on the contrary, these embodiments are provided so that the utility model will be more comprehensive and complete, and the concept of the example embodiments will be fully conveyed to those skilled in the art. The described features, structures, or characteristics may be combined in one or more embodiments in any suitable manner. In the following description, many specific details are provided to provide a full understanding of the embodiments of the utility model. However, those skilled in the art will appreciate that the technical solutions of the utility model may be practiced while omitting one or more of the specific details, or other methods, components, devices, steps, etc. may be adopted. In other cases, known technical solutions are not shown or described in detail to avoid obscuring various aspects of the utility model.

[0019] like Figure 1 As shown, the utility model discloses a battery pack reliability test system, which includes a vibration table, and the vibration table includes two parts: a vibration generator 1 and a horizontal slide 2. The vibration generator 1 is arranged horizontally and connected to the horizontal slide 2, and the vibration generator 1 drives the horizontal slide 2 to perform reciprocating vibration motion. An environmental test box 3 is covered on the horizontal slide, and the environmental test box 3 is used to perform temperature or humidity tests. A gap is provided between the environmental test box 3 and the horizontal slide 2 to ensure that the horizontal slide 2 can operate normally. The bottom of the environmental test box 3 is sealed with the horizontal slide by a sealing film to ensure that the environmental test box 3 is in a sealed state. The upper cover 31 of the environmental test box 3 is connected to an upper cover driving mechanism, and the driving mechanism can drive the upper cover 31 to open or close automatically.

[0020] In order to prevent the battery pack 5 from moving back and forth on the horizontal slide during the reliability test, the system is also provided with a plurality of locking devices 4, which are used to fix the battery pack on the horizontal slide. The locking device 4 includes a hydraulic cylinder and a pressing mechanism, and the hydraulic cylinder is connected to the pressing mechanism to drive the pressing mechanism to press the battery pack 5. As a preferred embodiment, Figure 3 As shown, the pressing structure includes a support frame 45 and a rocker arm 46. The middle part of the rocker arm 46 is hinged on the support frame 45. One end of the rocker arm 46 is a clamping end. The other end of the rocker arm 46 is provided with a roller 44. A bevel block 43 is provided below the roller 44. The bevel block 43 is connected to the hydraulic cylinder 41 through a piston rod 42.

[0021] When the locking device 4 is working, the hydraulic cylinder 41 moves forward, pushing the inclined block 43 forward, and then the roller 44 moves upward, so that the pressing end of the rocker arm 46 moves downward to press the workpiece. As a preferred embodiment, the pressing end of the rocker arm 46 can be provided with a hook-shaped pressing portion. When the locking device 4 needs to be unlocked, the hydraulic cylinder 41 moves backward, pushing the inclined block 43 to move backward until it is separated from the roller 44, so that the rocker arm 46 is in a free state, and the pressing end of the rocker arm 46 releases the workpiece, thereby unlocking the workpiece.

[0022] The system also includes a smoke alarm sensor and a controller. The smoke alarm sensor is installed in the environmental test box 3 to detect whether there is smoke in the environmental test box 3. The controller is electrically connected to the vibration generator 1, the upper cover driving mechanism, the hydraulic cylinder and the smoke alarm. When the smoke alarm sensor detects that the environmental test box 3 is generated, it means that the battery pack 5 in the environmental test box 3 may spontaneously ignite. At this time, you can Figure 2 As shown, the controller controls the upper cover driving mechanism to quickly open the upper cover of the environmental test box 3, and at the same time, the controller controls the hydraulic cylinder to unlock the locking device 4, so that the battery pack 5 can be quickly taken out of the environmental test box 3 to prevent damage to the test equipment. As a preferred embodiment, a lifting wire rope 6 can be directly set on the battery pack 5, and a lifting and handling device can be set outside the environmental test box 3, so that the battery pack 5 can be quickly moved.

[0023] like Figure 4 As shown, as another embodiment of the utility model, a spray device 7 can also be provided on the upper cover 31 of the environmental test box 3, and the battery pack 5 that has caught fire can be directly extinguished by the spray device 7. During the fire extinguishing process, in order to prevent the spray liquid from contaminating the hydraulic oil on the horizontal slide, an annular groove can be provided on the surface of the horizontal slide 2, and a deep hole is provided in the annular groove to connect with the guide pipe 8, so that the spray liquid will first gather in the annular groove and flow into the deep hole, and finally flow out from the guide pipe 8, so that the spray liquid can be effectively prevented from contaminating the hydraulic oil on the horizontal slide.

[0024] The battery pack reliability test system is equipped with a smoke alarm in the environmental test chamber. The smoke alarm can detect in real time whether the battery pack is burning or catching fire in the environmental test chamber. When the battery pack is burning or catching fire, the controller can control the vibration table to automatically stop working, and at the same time control the upper cover of the environmental test chamber to open quickly and the locking device to unlock quickly, so as to take the burning battery pack out of the environmental test chamber, or control the spray device to spray the battery pack to extinguish the fire, thereby ensuring the safe and reliable operation of the test system.

[0025] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A battery pack reliability test system, characterized in that: The test system includes: A vibration table, wherein the vibration table comprises a vibration generator and a horizontal slide table, wherein the vibration generator is connected to the horizontal slide table, and the vibration generator drives the horizontal slide table to move; An environmental test box, wherein the environmental test box cover is arranged on the horizontal slide, the bottom of the environmental test box and the horizontal slide are sealed by a sealing film, and the upper cover of the environmental test box is connected to an upper cover driving mechanism, and the driving mechanism can drive the upper cover to open or close; A plurality of locking devices, each of which is used to fix the battery pack on the horizontal slide, and each of which includes a hydraulic cylinder and a pressing mechanism, wherein the hydraulic cylinder is connected to the pressing mechanism to drive the pressing mechanism to press the battery pack; a smoke alarm sensor, the smoke alarm sensor being installed in the environmental test chamber; A controller is connected with the vibration generator, the upper cover driving mechanism, the hydraulic cylinder and the smoke alarm.

2. The battery pack reliability test system according to claim 1, characterized in that: The pressing mechanism includes a support frame and a rocker arm. The middle part of the rocker arm is hinged on the support frame. One end of the rocker arm is a clamping end. The other end of the rocker arm is provided with a roller. An inclined block is provided below the roller. The inclined block is connected to the hydraulic cylinder through a piston rod.

3. The battery pack reliability test system according to claim 2, characterized in that: The pressing end forms a hook-shaped pressing portion.

4. The battery pack reliability test system according to claim 1, characterized in that: The upper cover of the environmental test box is also provided with a spray device.

5. The battery pack reliability test system according to claim 4, characterized in that: An annular groove is provided on the surface of the horizontal slide, and a deep hole is provided in the annular groove to be connected with the guide pipe.

6. The battery pack reliability test system according to claim 1, characterized in that: It also includes a lifting and transporting device, which is arranged outside the environmental testing box.

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