CN221649824U - Battery leakage detection device - Google Patents

Abstract

The application relates to the technical field of leakage detection devices, in particular to a battery leakage detection device, and aims to solve the problem that in the prior art, the accuracy of detecting leakage points of a battery is not high. For this purpose, the battery leakage detection device comprises a sealing structure, a clamping assembly, an air inlet assembly and a detection assembly, wherein the sealing structure comprises a sealing cavity for accommodating a battery, the clamping assembly is arranged in the sealing cavity and used for clamping the battery, the air inlet assembly comprises an air source and an air inlet pipeline, the air source is used for feeding air into the battery through the air inlet pipeline, and the detection assembly is arranged in the sealing cavity and comprises an ultrasonic detection structure, and the ultrasonic detection structure is used for detecting ultrasonic signals of the battery. The battery is placed in the sealed cavity, the battery is inflated, and the ultrasonic detection structure judges the position of the leakage point of the battery according to the strength of the signal by detecting the ultrasonic signal, so that the detection accuracy is ensured.

Description

Battery leakage detection device

Technical Field

The application relates to the technical field of leakage detection devices, and particularly provides a battery leakage detection device.

Background

In the prior art, helium can be sprayed to a suspicious leakage point of a battery to be detected, then the position of the leakage point can be judged through the display value of a leak detector, a special inert gas suction probe can be arranged at a leak detection port of the leak detector, and then the probe is used for detecting the suspicious leakage point of the battery to be detected and observing the display value of the leak detector at the same time so as to judge the leakage point of the battery to be detected.

In view of the foregoing, there is a need for an improved solution to the above-mentioned problems.

Disclosure of Invention

The application aims to solve the technical problems, namely the problem that the accuracy of detecting the leakage point of the battery is not high in the prior art.

The application provides a battery leakage detection device, comprising: a sealing structure including a sealing cavity for accommodating a battery; the clamping assembly is arranged in the sealed cavity and used for clamping the battery; the air inlet assembly comprises an air source and an air inlet pipeline, and the air source is used for introducing air into the battery through the air inlet pipeline; and the detection assembly is arranged in the sealed cavity and comprises an ultrasonic detection structure, and the ultrasonic detection structure is used for detecting ultrasonic signals of the battery.

In the preferred technical scheme of the battery leakage detection device, the ultrasonic detection structure and the battery can perform relative movement.

In the preferred technical scheme of the battery leakage detection device, the detection assembly further comprises a first rail, the first rail is arranged on the inner top of the sealing cavity in a front-back sliding mode and extends in the left-right direction, and the ultrasonic detection structure is arranged on the first rail in a left-right sliding mode.

In the preferred technical scheme of the battery leakage detection device, the detection assembly further comprises a second rail, the second rail is fixed at the inner top of the sealing cavity along the front-back direction, and the first rail is arranged on the second rail in a front-back sliding manner.

In the preferred technical scheme of the battery leakage detection device, the air inlet assembly further comprises a first stop valve and a pressure gauge, and the first stop valve and the pressure gauge are arranged on the air inlet pipeline.

In the preferred technical scheme of the battery leakage detection device, the clamping assembly comprises a driving structure and a clamp, and the driving structure drives the clamp to clamp the battery.

In the preferred technical scheme of the battery leakage detection device, the clamping assembly further comprises a first adjusting rail, the first adjusting rail is arranged at the inner bottom of the sealing cavity along the left-right direction, the clamp comprises a first clamping jaw and a second clamping jaw which are slidably arranged on the first adjusting rail, and the driving structure can drive the first clamping jaw and the second clamping jaw to move on the first adjusting rail and clamp the left side and the right side of the battery.

In the preferred technical scheme of the battery leakage detection device, the clamping assembly further comprises a second adjusting rail, the second adjusting rail is arranged at the inner bottom of the sealing cavity along the front-back direction, the clamp further comprises a third clamping jaw and a fourth clamping jaw which are slidably arranged on the second adjusting rail, and the driving structure can drive the third clamping jaw and the fourth clamping jaw to move on the second adjusting rail and clamp the front side and the back side of the battery.

In the preferred technical scheme of the battery leakage detection device, the detection assembly further comprises a display and a signal processor, wherein the signal processor is used for processing ultrasonic signals received by the ultrasonic detection structure and transmitting the processed ultrasonic signals to the display, and the display is used for displaying the leakage point position of the battery.

In the preferred technical scheme of the battery leakage detection device, the battery leakage detection device further comprises a recovery assembly, the recovery assembly comprises a negative pressure machine, a recovery pipeline and a second stop valve, one end of the recovery pipeline is communicated with the battery, the other end of the recovery pipeline is communicated with the negative pressure machine, and the second stop valve is arranged on the recovery pipeline.

Under the condition of adopting the technical scheme, the battery can be placed in the sealed cavity to charge the battery, and the ultrasonic detection structure can ensure the detection accuracy by detecting ultrasonic signals and judging the leakage point position of the battery according to the strength of the signals.

Drawings

Preferred embodiments of the present application are described below with reference to the accompanying drawings, in which:

Fig. 1 is a schematic diagram of a battery leak detection apparatus of the present application.

List of reference numerals:

1. A leak detection device; 11. a sealing structure; 111. sealing the cavity; 12. a clamping assembly; 121. a clamp; 1211. a first jaw; 1212. a second jaw; 1213. a third jaw; 122. a first adjustment rail; 123. a second adjustment track; 13. an air intake assembly; 131. a gas source; 132. an air intake duct; 133. a first stop valve; 134. a pressure gauge; 14. a detection assembly; 141. a first track; 142. a second track; 143. an ultrasonic detection structure; 2. a battery; 21. and (5) leaking points.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The embodiments described in the following exemplary examples are only to present the inventive concept and do not represent all embodiments under the inventive concept. Rather, they are merely examples of apparatus and methods that may be consistent with aspects of the inventive concepts.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. The terms first, second and the like in the description and in the claims, are not used for any order, quantity or importance, but are used for distinguishing between different elements. Likewise, the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one.

Unless otherwise indicated, the terms "front," "rear," "lower," and/or "upper," "top," "bottom," "left," "right," and the like are merely for convenience of description and are not limited to one position or one spatial orientation. The terms "comprises," "comprising," or the like are intended to cover an element or article that is "comprising" or "includes" followed by another element or article that is "comprising" or "includes" and that is equivalent to the element or article, but does not exclude other elements or articles from the application. "connected" is to be understood broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; it may be a mechanical connection that is made, or may be an electrical connection. The specific meaning of the above terms in the present application can be understood by those skilled in the art according to the specific circumstances.

For convenience of understanding, the front-back direction in the present application is the y direction shown in fig. 1, the left-right direction is the x direction shown in fig. 1, and x is perpendicular to y.

As shown in fig. 1, in order to solve the problem of low accuracy of detecting leakage points of a battery in the prior art, a leak detection device 1 of the battery 2 according to the present application includes a sealing structure 11, a clamping assembly 12, an air inlet assembly 13 and a detection assembly 14, wherein the sealing structure 11 includes a sealing cavity 111 for accommodating the battery 2, the clamping assembly 12 is disposed in the sealing cavity 111 for clamping the battery 2, the air inlet assembly 13 includes an air source 131 and an air inlet pipe 132, the air source 131 is used for introducing air into the battery 2 through the air inlet pipe 132, and the detection assembly 14 is disposed in the sealing cavity 111 and includes an ultrasonic detection structure 143, and the ultrasonic detection structure 143 is used for detecting ultrasonic signals of the battery 2. After putting into sealed cavity 111 with battery 2 through the fixture equipment, after clamping assembly 12 centre gripping battery 2, air inlet's connector is connected with battery 2 annotates the liquid mouth to intake in battery 2, when battery 2 had leak point 21, leak point 21 department can reveal gas, because the battery is full of gas, if battery 2 had to leak, then the gas that leaks can form the torrent at leak point 21, the torrent can produce the ultrasonic wave at leak point 21 department, ultrasonic wave detection structure 143 can detect the ultrasonic signal that leaks gas production this moment, under the certain circumstances of air intake velocity, the stronger ultrasonic signal that detects proves that ultrasonic wave detection structure 143 is close from leak point 21's position, above-mentioned detection mode can detect leak point 21's position accurately.

In one embodiment, in the process of uniformly feeding air to the battery 2, when the detected ultrasonic signal is from weak to strong, the ultrasonic detection structure 143 is proved to be closer to the position of the leakage point 21, so that the distance between the ultrasonic detection structure 143 and the battery 2 can be changed by controlling the relative movement of the ultrasonic detection structure 143 and the battery 2, and the position of the leakage point 21 of the battery 2 can be detected more accurately. The distance between the ultrasonic detection structure 143 and the battery 2 may be changed by moving either the ultrasonic detection structure 143 or the battery 2, that is, by fixing the battery 2 so that the ultrasonic detection structure 143 moves toward the battery 2, or by fixing the ultrasonic detection structure 143 in the sealed cavity 111 and moving the battery 2 back and forth or rotating the battery 2 so that the battery 2 moves toward the ultrasonic detection structure 143, which is not limited, may be set according to the needs of those skilled in the art, and is within the scope of the present application. The following description will take the case of fixing the battery 2 and moving the ultrasonic detection structure 143 as an example.

In general, since the leakage point 21 of the battery 2 is often present at a laser welded position on the top surface of the battery 2, for convenience of detection, the top surface of the battery 2 is disposed upward when the battery 2 is placed in the sealed cavity 111, and therefore, the ultrasonic detection structure 143 is disposed at the top of the sealed cavity 111 and downward, and the leakage point 21 at the top surface of the battery 2 is conveniently detected by moving the ultrasonic detection structure 143.

In one embodiment, the ultrasonic detection structure 143 is movably disposed at the top of the sealed cavity 111, the detection assembly 14 further includes a first rail 141, the first rail 141 is slidably disposed at the inner top of the sealed cavity 111 back and forth and the first rail 141 extends in a left-right direction, and the ultrasonic detection structure 143 is slidably disposed on the first rail 141. At this time, the ultrasonic detection structure 143 can move left and right on the first rail 141, and the first rail 141 can drive the ultrasonic detection structure 143 to move back and forth at the top of the sealed cavity 111, so that the ultrasonic detection structure 143 can move in the front-back and left-right directions on the top surface of the battery 2, thereby realizing detection of each position of the top surface of the battery 2, and further ensuring the accuracy of detection of the position of the leakage point.

In one embodiment, the detecting assembly 14 further includes a second rail 142, where the second rail 142 is fixed on the inner top of the sealed cavity 111 along the front-rear direction, and at this time, the first rail 141 is slidably disposed on the second rail 142 back and forth, the ultrasonic detecting structure 143 can move left and right on the first rail 141, and the first rail 141 can drive the ultrasonic detecting structure 143 to move back and forth on the second rail 142, so that the ultrasonic detecting structure 143 can move back and forth and left and right on the top surface of the battery 2, thereby realizing detection at each position of the top surface of the battery 2. The arrangement of the second rail 142 is added, so that the second rail 142 and the sealing structure 11 do not need to be integrally formed, and therefore, when the second rail 142 is damaged, the second rail 142 can be replaced in time, the whole sealing structure 11 does not need to be replaced, and the maintenance is convenient. In addition, the second rail 142 of the present application may be provided in one or more, and when the second rail 142 is provided in one, the middle portion of the first rail 141 may be slidably provided on the second rail 142, and when the second rail 142 is provided in two, both right and left end portions of the second rail 142 may be slidably provided on the second rail 142.

In one embodiment, the clamping assembly 12 includes a driving structure (not shown) and a clamp 121, the driving structure driving the clamp 121 to clamp the battery 2, the clamping assembly 12 further includes a first adjustment rail 122, the first adjustment rail 122 is disposed at the inner bottom of the sealed cavity 111 in the left-right direction, the clamp 121 includes a first clamping jaw 1211 and a second clamping jaw 1212 slidably disposed on the first adjustment rail 122, and when the battery 2 is placed in a set position in the sealed cavity 111, the driving structure drives the first clamping jaw 1211 and the second clamping jaw 1212 to move on the first adjustment rail 122 in a direction approaching the battery 2 and clamp left and right sides of the battery 2, thereby fixing the battery 2 in the sealed cavity 111. The driving structure can adjust the movement direction of the first clamping jaw 1211 and the second clamping jaw 1212, and can also adjust the tightness degree of the battery 2 clamped by the first clamping jaw 1211 and the second clamping jaw 1212, so that the battery 2 is ensured to be more stably fixed in the sealing cavity 111 after being clamped, and meanwhile, the damage of the battery 2 caused by excessive clamping of the battery 2 can be avoided by adjusting the clamping degree.

In another embodiment, the clamping assembly 12 may further include a second adjustment rail 123, the second adjustment rail 123 being disposed at an inner bottom of the sealing cavity 111 in a front-rear direction, the clamp 121 including a third clamping jaw 1213 and a fourth clamping jaw (not shown in the drawing) slidably disposed on the second adjustment rail 123, and the driving structure being capable of driving the third clamping jaw 1213 and the fourth clamping jaw to move on the second adjustment rail 123 and clamp both front and rear sides of the battery 2. The clamping principle of the third clamping jaw 1213 and the fourth clamping jaw is the same as that of the first clamping jaw 1211 and the second clamping jaw 1212, and will not be described in detail herein.

It should be noted that, when the battery 2 is clamped, the first clamping jaw 1211 and the second clamping jaw 1212 may clamp the battery 2 to fix the left and right sides of the battery 2, or the third clamping jaw 1213 and the fourth clamping jaw may clamp the battery 2 to fix the front and rear sides of the battery 2, and of course, the first clamping jaw 1211, the second clamping jaw 1212, the third clamping jaw 1213 and the fourth clamping jaw may clamp the battery 2 simultaneously to fix the front and rear sides and the left and right sides of the battery 2, so as to avoid shaking the battery 2.

While the above description has been made taking the case of the stationary battery 2 and the moving ultrasonic detection structure 143 as an example, it is needless to say that the stationary ultrasonic detection structure 143 and the moving battery 2 may be taken as examples, and the battery 2 may be moved (not shown in this case), and the steps at this time include:

Adjusting a clamping assembly 12 of the battery 2, fixing the battery 2 to be tested on the clamping assembly 12, and ventilating the liquid injection hole of the battery 2 by utilizing a gas source 131 to convey the gas in the gas source 131 to the inner space of the battery 2;

Monitoring whether the ultrasonic signal is detected by the ultrasonic detection structure 143, if the ultrasonic signal is detected, a minute leakage exists, and entering a subsequent step;

After detecting that the battery 2 has gas leakage, the battery 2 is slowly moved to be close to the ultrasonic detection structure 143, the position of the leakage point 21 is determined by means of ultrasonic intensity, and if the signal received by the ultrasonic detection structure 143 is enhanced, the leakage exists there.

The operation of the mobile battery 2 may be a front, rear, left, right movement, or a rotational movement, but the operation is not limited thereto and may be set according to the needs of those skilled in the art, and the operation is within the scope of the present application.

In one embodiment, the detection assembly 14 further includes a display and a signal processor, where the signal processor is configured to process the ultrasonic signal received by the ultrasonic detection structure 143 and transmit the processed signal to the display, and the display may display the position of the leak 21 or the position where the signal of the battery 2 is strongest according to the processed signal, so as to help the user determine the position of the leak 21. The display may be disposed on the sealing structure 11, but may also be a client in communication with the ultrasonic detection structure 143, and is not directly disposed on the sealing structure 11, which is not limited thereto, and may be disposed according to the needs of those skilled in the art, which is within the scope of the present application.

In one embodiment, air intake assembly 13 further includes a first shut-off valve 133 and a pressure gauge 134, first shut-off valve 133 and pressure gauge 134 being disposed on air intake conduit 132. When the battery 2 needs to be charged, the first stop valve 133 and the pressure gauge 134 are opened, and the pressure of the charged air needs to be controlled within a certain range, so that the first stop valve 133 is opened or closed in time according to the display value of the pressure gauge 134, thereby avoiding that the pressure input into the battery 2 is too high to cause bursting of the battery 2. When the pressure in the battery 2 reaches a certain value, no ultrasonic signal is detected, and it is proved that the battery 2 has no leak 21, the first stop valve 133 may be closed at this time. The arrangement of the first stop valve 133 and the pressure gauge 134 can timely adjust the air inflow of the air inlet assembly 13 to the battery 2, so that the battery 2 is prevented from being damaged due to excessive air inflow. In addition, the first stop valve 133 can ensure that a user can charge air into the battery 2 according to requirements, so that waste of air in the air source 131 is avoided.

In one embodiment, to further avoid wasting gas, the leak detection device 1 further includes a recovery assembly (not shown in the figure) including a negative pressure machine, a recovery pipe, and a second stop valve, one end of the recovery pipe is in communication with the battery 2, the other end is in communication with the negative pressure machine, and the second stop valve is disposed on the recovery pipe. When the gas in the battery 2 needs to be recovered, the negative pressure machine is started, the first stop valve 133 is closed, and the second stop valve is opened, and at this time, the gas recovery pipeline is drawn back by the negative pressure machine. When the air source 131 is helium, the recycling component can recycle the helium, so that resources are saved, and the recycling rate of the resources is increased.

The ultrasonic detection structure 143 may be an ultrasonic receiver, an ultrasonic sensor, or the like, as long as it can receive and transmit an ultrasonic signal, which is within the scope of the present application. It should be noted that, the leak detection device 1 of the present application may be used to detect whether a leak exists in the battery 2, and also detect whether other devices leak, which are all within the protection scope of the present application.

To sum up, after the battery 2 is put into the sealed cavity 111 through the fixture, the clamping assembly 12 clamps the battery 2, and then the connector of the air inlet channel is connected with the liquid injection port of the battery 2, so as to air in the battery 2, when the battery 2 has the leakage point 21, the leakage point 21 will leak gas, at this time, the ultrasonic detection structure 143 can detect the ultrasonic signal formed by the leakage gas, and under the condition of a certain air inlet speed, the stronger the detected ultrasonic signal proves that the ultrasonic detection structure 143 is closer to the position of the leakage point 21, and the detection mode can accurately detect the position of the leakage point 21.

The foregoing description of the preferred embodiments of the application is not intended to be limiting, but rather to enable any modification, equivalent replacement, improvement or the like to be made within the spirit and principles of the application.

Claims (10)

1. A battery leak detection apparatus, comprising:

a sealing structure including a sealing cavity for accommodating a battery; and

The clamping assembly is arranged in the sealed cavity and used for clamping the battery; and

The air inlet assembly comprises an air source and an air inlet pipeline, and the air source is used for introducing air into the battery through the air inlet pipeline; and

The detection assembly is arranged in the sealed cavity and comprises an ultrasonic detection structure, and the ultrasonic detection structure is used for detecting ultrasonic signals of the battery.

2. The battery leak detection apparatus as defined in claim 1, wherein the ultrasonic detection structure is capable of relative movement with the battery.

3. The battery leak detection apparatus as defined in claim 2, wherein the detection assembly further comprises a first rail slidably disposed back and forth on an inner top of the sealed cavity and extending in a left-right direction, the ultrasonic detection structure being slidably disposed on the first rail.

4. The battery leak detection apparatus as defined in claim 3, wherein the detection assembly further comprises a second rail fixed to an inner top of the seal chamber in a front-rear direction, and the first rail is slidably disposed on the second rail in the front-rear direction.

5. The battery leak detection apparatus of claim 1, wherein the air intake assembly further comprises a first shut-off valve and a pressure gauge, the first shut-off valve and the pressure gauge being disposed on the air intake conduit.

6. The battery leak detection apparatus as defined in claim 1, wherein the clamping assembly includes a drive structure and a clamp, the drive structure driving the clamp to clamp the battery.

7. The battery leak detection apparatus as defined in claim 6, wherein the clamping assembly further comprises a first adjustment rail disposed in a left-right direction at an inner bottom of the sealed cavity, the clamp comprises a first clamping jaw and a second clamping jaw slidably disposed on the first adjustment rail, and the driving structure is capable of driving the first clamping jaw and the second clamping jaw to move on the first adjustment rail and clamp left and right sides of the battery.

8. The battery leak detection apparatus as defined in claim 6 or 7, wherein the clamping assembly further comprises a second adjustment rail disposed at an inner bottom of the sealed cavity in a front-rear direction, the clamp further comprises a third clamping jaw and a fourth clamping jaw slidably disposed on the second adjustment rail, and the driving structure is capable of driving the third clamping jaw and the fourth clamping jaw to move on the second adjustment rail and clamp on front-rear sides of the battery.

9. The battery leak detection apparatus as defined in any one of claims 1 to 7, wherein the detection assembly further comprises a display and a signal processor, the signal processor for processing and transmitting ultrasonic signals received by the ultrasonic detection structure to the display, the display for displaying the leak location of the battery.

10. The battery leak detection apparatus as defined in any one of claims 1 to 7, further comprising a recovery assembly comprising a negative pressure machine, a recovery pipe, one end of which communicates with the battery, and the other end communicates with the negative pressure machine, and a second shut-off valve provided on the recovery pipe.