Battery box sealing performance detection device

Abstract

The utility model relates to the related technical field of sealing performance detection, and discloses a battery box sealing performance detection device, which comprises a detection cabinet, a plurality of groups of partition plates are arranged in the detection cabinet so as to divide the plurality of groups of detection cabinets into a plurality of groups of detection boxes, the front surfaces of the detection boxes are provided with pick-and-place ports, and sealing assemblies are connected in the pick-and-place ports. One side of the detection box is fixedly connected with an air suction cylinder, an air inlet is arranged between the air suction cylinder and the detection box, the air suction cylinder is internally connected with an air plug in a sliding manner, and the air plug is fixedly connected with one end of a first connecting rod. And the sealing performance of the battery box is judged according to different air pressure differences generated by whether the battery box leaks or not, multiple groups of battery boxes can be detected at a time, and different types of battery boxes can be detected, so that the practicability of the equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field related to sealing detection, in particular to a battery box sealing detection device. Background Art

[0002] New energy vehicles refer to a new type of vehicle that uses unconventional automotive fuel as a power source. New energy vehicles include pure electric vehicles, extended-range electric vehicles, hybrid vehicles, fuel cell electric vehicles, hydrogen engine vehicles, and other new energy vehicles. Most of the existing new energy vehicles use battery boxes as the vehicle's driving source, making the battery box one of the core components of new energy vehicles. The sealing of the battery box directly affects the working safety of the battery system, thereby affecting the safety of the use of new energy vehicles. In order to ensure the sealing and waterproof performance of the battery box, the sealing of the battery box needs to be sampled and tested during the production and processing of the battery box. With the development of society, more and more types of battery box testing devices have emerged on the market.

[0003] Due to the large number of existing new energy vehicles, the sizes of battery boxes are somewhat different. The existing battery box detection device is not convenient to adjust according to the size of the battery box during use, which leads to certain limitations when the user uses it. In addition, since the weight of the battery box is unevenly distributed on the left and right, it is easy for one side to be high and the other side to be low during the test, which can easily lead to unsafe situations such as the battery box falling off during the sedimentation process, resulting in certain safety hazards when the device is used. In addition, different types of battery boxes require different detection methods. The existing device is not convenient to adjust the test method according to the type of battery box to be tested, which leads to low practicality of the device. Utility Model Content

[0004] The purpose of the utility model is to provide a battery box sealing detection device to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A battery box sealing detection device comprises a detection cabinet, wherein a plurality of groups of partitions are arranged in the detection cabinet, thereby dividing the plurality of groups of detection cabinets into a plurality of groups of detection boxes, a take-in and put-out port is arranged on the front side of the detection box, a sealing component is connected to the take-in and put-out port, an air suction cylinder is fixedly connected to one side of the detection box, an air inlet is arranged between the air suction cylinder and the detection box, an air plug is slidably connected in the air suction cylinder, one end of a first connecting rod is fixedly connected to the air plug, the other end of the first connecting rod is connected to a driving component through the air suction cylinder, a detection cylinder is fixedly connected to the other side of the detection box, a connecting port is arranged between the detection cylinder and the detection box, a piston plate is slidably connected in the detection cylinder, a second connecting rod is fixedly connected to the piston plate, the second connecting rod passes through the detection cylinder and is fixedly connected to a block, a spring sleeved on the second connecting rod is arranged between the block and the detection cylinder, and a measuring component for measuring the compression distance of the spring is connected to the block.

[0007] As a further solution of the utility model: the sealing assembly includes a rotating plate rotatably connected to the outer wall of the access opening through a hinge, and a sealing block is fixedly connected to the rotating plate, and the sealing block cooperates with the access opening.

[0008] As a further solution of the utility model: a fixed shaft is fixedly connected to the rotating plate, a rotating rod is rotatably connected to the fixed shaft, a buckle is fixedly connected to the detection cabinet, and the buckle cooperates with the rotating rod.

[0009] As a further solution of the utility model: the driving assembly includes a connecting frame fixedly connected to the first connecting rod, a mounting frame fixedly connected to the outer wall of the detection cabinet, a hydraulic telescopic pump fixedly connected to the mounting frame, and an output shaft of the hydraulic telescopic pump fixedly connected to the connecting frame.

[0010] As a further solution of the utility model: the measuring assembly includes a scale fixedly connected to the outer wall of the detection cabinet, and a pointer is fixedly connected to the stopper, and the pointer and the scale cooperate with each other.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention detects the sealing of the battery box through negative pressure detection, and judges the sealing of the battery box through the difference in air pressure generated by whether the battery box is leaking, and can detect multiple groups of battery boxes at a time, and can detect different types of battery boxes, thereby improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 The utility model is a schematic structural diagram of a battery box sealing detection device.

[0013] Figure 2 It is an isometric view of a battery box sealing detection device in the utility model.

[0014] Figure 3 It is a cross-sectional view of a battery box sealing detection device in the utility model.

[0015] Figure 4 The utility model is a cross-sectional view of a battery box sealing detection device.

[0016] In the figure: 1-testing cabinet, 2-partition, 3-testing box, 4-pick-up port, 5-hinge, 6-rotating plate, 7-sealing block, 8-fixed shaft, 9-rotating rod, 10-buckle, 11-air suction cylinder, 12-air plug, 13-first connecting rod, 14-air inlet, 15-connecting frame, 16-mounting frame, 17-hydraulic telescopic pump, 18-testing cylinder, 19-connecting port, 20-piston plate, 21-second connecting rod, 22-block, 23-spring, 24-scale, 25-pointer. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1 to Figure 4In the embodiment of the utility model, a battery box sealing detection device includes a detection cabinet 1, a plurality of partitions 2 are arranged in the detection cabinet 1, so as to divide the plurality of detection cabinets 1 into a plurality of detection boxes 3, a take-in and put-out port 4 is arranged on the front of the detection box 3, a sealing component is connected in the take-in and put-out port 4, a suction cylinder 11 is fixedly connected to one side of the detection box 3, an air inlet 14 is arranged between the suction cylinder 11 and the detection box 3, an air plug 12 is slidably connected in the suction cylinder 11, one end of a first connecting rod 13 is fixedly connected to the air plug 12, and the other end of the first connecting rod 13 passes through the suction cylinder 11 and is connected to The driving assembly, the other side of the detection box 3 is fixedly connected with a detection cylinder 18, a connecting port 19 is provided between the detection cylinder 18 and the detection box 3, a piston plate 20 is slidably connected in the detection cylinder 18, a second connecting rod 21 is fixedly connected to the piston plate 20, the second connecting rod 21 passes through the detection cylinder 18 and is fixedly connected with a stopper 22, a spring 23 sleeved on the second connecting rod 21 is provided between the stopper 22 and the detection cylinder 18, the stopper 22 is connected with a measuring assembly for measuring the compression distance of the spring 23, the utility model firstly takes multiple groups of batteries through the access port 4 The boxes are placed in multiple groups of test boxes 3 respectively, and then the access port 4 is closed by the sealing component, and then the multiple groups of first connecting rods 13 are driven by the driving component to synchronously extend and retract, and the first connecting rods 13 drive the multiple groups of air plugs 12 to synchronously extend and retract, and then the gas in the test box 3 is sucked into the suction cylinder 11 along the air inlet 14. At this time, the air pressure in the test box 3 is reduced. When the battery box is completely sealed, the gas in the battery box will not flow into the test box 3, but when the battery box is not completely sealed, the gas in the battery box will flow into the test box 3. At this time, when the amount of gas inhaled by the suction cylinder 11 is the same, Whether the battery box is leaking will cause different changes in the air pressure in the detection box 3. At this time, due to the air pressure difference between the detection box 3 and the outside of the detection cabinet 1, the air pressure difference acts on the piston plate 20, thereby pushing the piston plate 20 to move. The piston plate 20 compresses the spring 23 through the second connecting rod 21 and the block 22. When the air pressure difference is different, the compression amount of the spring 23 is also different. Therefore, the air pressure difference inside and outside the detection box 3 can be read through the different compression distances of the spring 23, and then the air pressure difference in the detection box 3 can be used to detect whether the battery box is sealed.

[0019] In one case of this embodiment, see Figure 1 to Figure 4The sealing assembly includes a rotating plate 6 rotatably connected to the outer wall of the access port 4 through a hinge 5, a sealing block 7 is fixedly connected to the rotating plate 6, and the sealing block 7 cooperates with the access port 4. A fixed shaft 8 is fixedly connected to the rotating plate 6, and a rotating rod 9 is rotatably connected to the fixed shaft 8. A buckle 10 is fixedly connected to the detection cabinet 1, and the buckle 10 cooperates with the rotating rod 9. The utility model rotatably connects the sealing block 7 through the rotational connection between the hinge 5 and the rotating plate 6, and then seals the access port 4 through the sealing block 7, and locks the rotating plate 6 through the cooperation between the rotating rod 9 and the buckle 10.

[0020] In one case of this embodiment, see Figure 1 to Figure 4 The driving assembly includes a connecting frame 15 fixedly connected to the first connecting rod 13, a mounting frame 16 fixedly connected to the outer wall of the detection cabinet 1, a hydraulic telescopic pump 17 fixedly connected to the mounting frame 16, and an output shaft of the hydraulic telescopic pump 17 fixedly connected to the connecting frame 15. The driving assembly drives the connecting frame 15 to move through the hydraulic telescopic pump 17, and the connecting frame 15 drives multiple groups of first connecting rods to be synchronously telescopic.

[0021] In one case of this embodiment, see Figure 1 to Figure 4 The measuring assembly includes a scale 24 fixedly connected to the outer wall of the detection cabinet 1, and a pointer 25 is fixedly connected to the stopper 22. The pointer 25 cooperates with the scale 24. The utility model reads the relative position of the stopper 22 through the cooperation between the scale 24 and the pointer 25, and then measures the compression distance of the spring 23 by measuring the position change of the stopper 22.

[0022] The working principle of the utility model is as follows: the utility model first places multiple groups of battery boxes in multiple groups of detection boxes 3 through the access port 4, then closes the access port 4 through the sealing block 7, and then drives the connecting frame 15 to move through the hydraulic telescopic pump 17, and the connecting frame 15 drives multiple groups of first connecting rods to be synchronously extended and retracted, and the first connecting rod 13 drives multiple groups of air plugs 12 to be synchronously extended and retracted, and then the gas in the detection box 3 is sucked into the suction cylinder 11 along the air inlet 14. At this time, the air pressure in the detection box 3 is reduced. When the battery box is completely sealed, the gas in the battery box will not flow into the detection box 3, but when the battery box is not completely sealed, the gas in the battery box will flow into the detection box 3. At this time, when the suction cylinder 11 sucks When the amount of gas is the same, whether the battery box is leaking causes different changes in the air pressure in the detection box 3. At this time, due to the air pressure difference between the detection box 3 and the outside of the detection cabinet 1, the air pressure difference acts on the piston plate 20, thereby pushing the piston plate 20 to move. The piston plate 20 compresses the spring 23 through the second connecting rod 21 and the stopper 22, and reads the relative position of the stopper 22 through the cooperation of the scale 24 and the pointer 25. When the air pressure difference is different, the compression amount of the spring 23 is also different. Therefore, the air pressure difference inside and outside the detection box 3 can be read by the different compression distances of the spring 23, and then the battery box is tested for sealing by the different air pressure differences in the detection box 3.

[0023] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, so it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the utility model. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0024] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A battery box sealing detection device, comprising a detection cabinet, characterized in that: Multiple groups of partitions are arranged in the detection cabinet, so as to divide the multiple groups of detection cabinets into multiple groups of detection boxes. A take-in and put-out port is arranged on the front side of the detection box, and a sealing component is connected to the take-in and put-out port. An air suction cylinder is fixedly connected to one side of the detection box, and an air inlet is arranged between the air suction cylinder and the detection box. An air plug is slidably connected in the air suction cylinder, and one end of a first connecting rod is fixedly connected to the air plug, and the other end of the first connecting rod is connected to a driving component through the air suction cylinder. A detection cylinder is fixedly connected to the other side of the detection box, and a connecting port is arranged between the detection cylinder and the detection box. A piston plate is slidably connected in the detection cylinder, and a second connecting rod is fixedly connected to the piston plate. The second connecting rod passes through the detection cylinder and is fixedly connected to a block, and a spring sleeved on the second connecting rod is arranged between the block and the detection cylinder, and the block is connected to a measuring component for measuring the compressed distance of the spring.

2. A battery box sealing detection device according to claim 1, characterized in that: The sealing assembly comprises a rotating plate rotatably connected to the outer wall of the access opening through a hinge, a sealing block is fixedly connected to the rotating plate, and the sealing block cooperates with the access opening.

3. A battery box sealing detection device according to claim 2, characterized in that: The rotating plate is fixedly connected with a fixed shaft, the fixed shaft is rotatably connected with a rotating rod, the detection cabinet is fixedly connected with a buckle, and the buckle and the rotating rod cooperate with each other.

4. A battery box sealing detection device according to claim 1, characterized in that: The driving assembly includes a connecting frame fixedly connected to the first connecting rod, a mounting frame fixedly connected to the outer wall of the detection cabinet, a hydraulic telescopic pump fixedly connected to the mounting frame, and an output shaft of the hydraulic telescopic pump fixedly connected to the connecting frame.

5. A battery box sealing detection device according to claim 1, characterized in that: The measuring assembly comprises a scale fixedly connected to the outer wall of the detection cabinet, and a pointer is fixedly connected to the stopper, and the pointer and the scale cooperate with each other.

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