CN216595442U - Lithium battery shell pressure test device - Google Patents
Lithium battery shell pressure test device Download PDFInfo
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- CN216595442U CN216595442U CN202123321581.3U CN202123321581U CN216595442U CN 216595442 U CN216595442 U CN 216595442U CN 202123321581 U CN202123321581 U CN 202123321581U CN 216595442 U CN216595442 U CN 216595442U
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- positioning seat
- lithium battery
- test device
- guide rod
- positioning
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Abstract
The utility model discloses a lithium battery shell pressure testing device, which comprises a base, a first positioning seat and a second positioning seat, wherein the first positioning seat is arranged on a first supporting part, the first positioning seat is provided with a pressure sensor, the second positioning seat is slidably arranged on a second supporting part, and the second supporting part is provided with a driving device; and the end surfaces of the first positioning seat and the second positioning seat which are opposite are respectively provided with a first electric connection part and a second electric connection part. When concrete test, be close to first supporting seat and second supporting seat each other, make first portion and the second portion of connecting that connects the electricity be connected with the both ends of lithium cell respectively, and set up the current tester, voltage tester and resistance tester, drive arrangement drive second positioning seat moves towards first positioning seat simultaneously, when mutual centre gripping, the lithium cell receives corresponding pressure, thereby the pressure conduction that will receive acquires corresponding data to pressure sensors, simultaneously when different pressure state, can acquire different current values, the change of magnitude of voltage and resistance.
Description
Technical Field
The utility model relates to a lithium cell casing test field, in particular to lithium cell casing pressure test device.
Background
A lithium battery is a type of battery using a nonaqueous electrolyte solution, using lithium metal or a lithium alloy as a positive/negative electrode material. However, in the actual use process, the shell is generally protected outside the lithium battery, so that the battery core of the lithium battery is protected from being interfered by external force, and meanwhile, the effects of protection and heat dissipation are achieved. Therefore, in some individual tests, the shell of the lithium battery needs to be subjected to a pressure test so as to acquire accurate data, such as damage of the shell under the action of pressure. However, the existing test shell can only be tested singly, the pressure test condition of the lithium battery in the working state cannot be realized, and the test has single one-sidedness.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a lithium cell casing pressure test device aims at the on-line test through the lithium cell to can acquire more comprehensive test data, improve each item data of casing and whether perfect (like antidetonation, heat dissipation and deformability etc.).
In order to achieve the above object, the utility model provides a lithium battery shell pressure test device, include:
the middle part of the base can be used for placing the shell, and both sides of the base are respectively provided with a first supporting part and a second supporting part;
the first positioning seat is arranged on the first supporting part and is provided with a pressure sensor;
the second positioning seat is slidably mounted on the second supporting part, and the second supporting part is provided with a driving device for driving the second positioning seat to move;
the end faces of the first positioning seat and the second positioning seat, which are opposite to each other, are respectively provided with a first electric connection part and a second electric connection part;
when the shell is placed on the first positioning seat and the second positioning seat, the battery is electrically connected with the first power connection part and the second power connection part respectively, and the driving device drives the second positioning seat to move towards the direction of the first positioning seat.
Preferably, the base is provided with a mounting cavity, the upper wall of the base is provided with a through hole, and the mounting cavity is provided with a fan.
Preferably, the upper wall of the base is provided with a guide rail, and the second positioning seat is provided with a sliding block matched with the guide rail.
Preferably, the first positioning seat comprises a first guide rod fixedly mounted on the first supporting portion and a first positioning plate arranged on the first guide rod, and the first positioning plate is provided with a pressure sensor.
Preferably, the first positioning seat comprises a first guide rod slidably mounted on the first supporting portion and a first positioning plate arranged on the first guide rod, the first supporting portion is provided with the pressure sensor, and an elastic part is arranged between the pressure sensor and the first positioning plate.
Preferably, the second positioning seat comprises a second guide rod slidably mounted on the second supporting portion and a second positioning plate arranged on the second guide rod, a driving plate is fixedly mounted on the second guide rod, the driving plate is connected with the sliding block, and the driving plate is connected with the driving device.
Preferably, the driving device comprises a rotating motor, a ball screw connected with the rotating motor, and a screw nut matched with the ball screw, and the screw nut is arranged on the driving plate.
Preferably, a tension spring is arranged between the second supporting part and the driving plate.
Preferably, the opposite end surfaces of the first positioning plate and the second positioning plate are provided with concave-convex parts.
Preferably, the first electric connecting part and the second electric connecting part are identical in structure and comprise metal clamping arms which can be relatively close to each other, and the clamping arms are connected with a power supply.
The utility model discloses technical scheme is when concrete test, be close to first supporting seat and second supporting seat each other, make first portion and the second that connects the electricity portion of connecting be connected with the both ends of lithium cell respectively, and set up the current tester, voltage tester and resistance tester, drive arrangement drive second positioning seat moves towards first positioning seat simultaneously, when mutual centre gripping, the lithium cell receives corresponding pressure, thereby the pressure conduction that will receive acquires corresponding data to the pressure sensors, simultaneously when different pressure state, can acquire different current values, the change of voltage value and resistance value, when concrete state, can pass through computer control, thereby acquire different oscillograms, thereby know when pressure is big, can judge danger under what condition in advance, the problem of explosion appears in the current lithium cell has been reduced.
Drawings
Fig. 1 is a sectional view of the present invention;
fig. 2 is a sectional view of the present invention;
fig. 3 is a perspective view of the present invention.
In the drawing, 1 is a base, 11 is a first supporting portion, 12 is a second supporting portion, 2 is a first positioning base, 21 is a first guide rod, 22 is a first positioning plate, 3 is a second positioning base, 31 is a second guide rod, 32 is a second positioning plate, 41 is a first electric connection portion, 42 is a second electric connection portion, 43 is a clamping arm, 51 is a through hole, 52 is a fan, 61 is a guide rail, 62 is a slider, 63 is a rotating motor, 64 is a ball screw, 65 is a screw nut, 7 is a pressure sensor, 71 is an elastic member, 8 is a tension spring, and 9 is a concave-convex portion.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, if directional indicators (such as … …, upper, lower, left, right, front, back, top, bottom, inner, outer, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial) are involved in the embodiments of the present invention, the directional indicators are only used to explain the relative position, motion, etc. of the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicators are changed accordingly.
In addition, if there is a description relating to "first" or "second", etc. in the embodiments of the present invention, the description of "first" or "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
As shown in fig. 1 to 3, a lithium battery case pressure test apparatus includes:
the device comprises a base 1, wherein a shell can be placed in the middle of the base 1, and a first supporting part 11 and a second supporting part 12 are respectively arranged on two sides of the base 1;
the first positioning seat 2 is mounted on the first supporting part 11, and the first positioning seat 2 is provided with a pressure sensor 7;
the second positioning seat 3 is slidably mounted on a second supporting part 12, and the second supporting part 12 is provided with a driving device for driving the second positioning seat 3 to move;
the opposite end surfaces of the first positioning seat 2 and the second positioning seat 3 are respectively provided with a first electric connection part 41 and a second electric connection part 42;
when the housing is placed on the first positioning seat 2 and the second positioning seat 3, the battery is electrically connected to the first electrical connection part 41 and the second electrical connection part 42, and the driving device drives the second positioning seat 3 to move towards the first positioning seat 2.
When concrete test, be close to first supporting seat and second supporting seat each other, make first portion 41 and the second portion 42 that connects the electricity be connected with the both ends of lithium cell respectively, and set up the current tester, voltage tester and resistance tester, drive arrangement drive second positioning seat 3 moves towards first positioning seat 2 simultaneously, when mutual centre gripping, the lithium cell receives corresponding pressure, thereby the pressure conduction who will receive obtains corresponding data to pressure sensors 7, simultaneously when different pressure state, can acquire different current values, the change of voltage value and resistance value, when concrete state, can pass through computer control, thereby obtain different oscillograms, thereby when knowing pressure how big, can predetermine and can appear danger under what condition, the problem of explosion appears in the current lithium cell has been reduced.
In the embodiment of the present invention, the base 1 is provided with an installation cavity, the upper wall of the base 1 is provided with a through hole 51, and the installation cavity is provided with a fan 52. In a specific embodiment, an infrared temperature measuring device can be arranged to test the temperature of the lithium battery, and the safety threshold value of the lithium battery is obtained by air cooling when different temperature values are obtained.
In the embodiment of the present invention, the upper wall of the base 1 is provided with a guide rail 61, the second positioning seat 3 is provided with a slider 62 matched with the guide rail 61, so that the stable sliding of the second positioning seat 3 is realized.
In the embodiment of the present invention, the first positioning seat 2 includes a first guide rod 21 fixedly installed on the first supporting portion 11 and a first positioning plate 22 installed on the first guide rod 21, and the first positioning plate 22 is provided with the pressure sensor 7. In the first embodiment, the pressure value of the casing is obtained by direct pressure action.
In the embodiment of the present invention, the first positioning seat 2 includes a first guide rod 21 slidably mounted on the first supporting portion 11 and a first positioning plate 22 disposed on the first guide rod 21, the first supporting portion 11 is provided with the pressure sensor 7, and an elastic member 71 is disposed between the pressure sensor 7 and the first positioning plate 22. The pressure sensor in the first embodiment is generally a rigid impact pressure sensor, which is expensive, and in the second embodiment, the pressure value is obtained by elastic pressure, which is relatively cheap for elastic impact, and the test data can be debugged according to the actual situation, wherein the elastic member 71 is a top spring, which can apply elasticity to the first positioning plate 22 to move toward the second positioning plate 32.
In the embodiment of the present invention, the second positioning seat 3 includes a second guide rod 31 slidably mounted on the second supporting portion 12 and a second positioning plate 32 disposed on the second guide rod 31, a driving plate is fixedly mounted on the second guide rod 31, the driving plate is connected with the slider 62, and the driving plate is connected with the driving device.
The embodiment of the present invention provides an embodiment, the driving device includes a rotating electrical machine 63, a ball screw 64 connected to the rotating electrical machine 63, and a ball screw 64 matched with a screw nut 65, the screw nut 65 is disposed on the driving plate, so as to precisely control the stroke of the driving plate, and control the corresponding pressure.
In the embodiment of the present invention, an extension spring 8 is disposed between the second supporting portion 12 and the driving plate, so that the second positioning plate 32 can be quickly reset.
In the embodiment of the present invention, the opposite end surfaces of the first positioning plate 22 and the second positioning plate 32 are provided with concave-convex portions 9. Thereby the realization is stable to the centre gripping of lithium cell, and wherein concave-convex part 9 can be for the dull polish layer, and local atress when setting up through concave-convex part 9 can test daily lithium cell and drop causes the influence to the lithium cell.
In the embodiment of the present invention, the first electric connection part 41 and the second electric connection part 42 have the same structure, and include a metal clamping arm 43 that can be relatively close to each other, and the clamping arm 43 is connected to a power source.
The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.
Claims (10)
1. The utility model provides a lithium battery case pressure test device which characterized in that includes:
the shell can be placed in the middle of the base, and a first supporting part and a second supporting part are respectively arranged on two sides of the base;
the first positioning seat is arranged on the first supporting part and is provided with a pressure sensor;
the second positioning seat is slidably mounted on the second supporting part, and the second supporting part is provided with a driving device for driving the second positioning seat to move;
the end faces of the first positioning seat and the second positioning seat, which are opposite to each other, are respectively provided with a first electric connection part and a second electric connection part;
when the shell is placed on the first positioning seat and the second positioning seat, the battery is electrically connected with the first power connection part and the second power connection part respectively, and the driving device drives the second positioning seat to move towards the direction of the first positioning seat.
2. The lithium battery cell casing pressure test device of claim 1, wherein: the base is provided with an installation cavity, the upper wall of the base is provided with a through hole, and the installation cavity is provided with a fan.
3. The lithium battery cell casing pressure test device of claim 1, wherein: the upper wall of the base is provided with a guide rail, and the second positioning seat is provided with a sliding block matched with the guide rail.
4. The lithium battery cell casing pressure test device of claim 3, wherein: the first positioning seat comprises a first guide rod fixedly mounted on the first supporting portion and a first positioning plate arranged on the first guide rod, and the first positioning plate is provided with a pressure sensor.
5. The lithium battery cell casing pressure test device of claim 1, wherein: the first positioning seat comprises a first guide rod and a first positioning plate, the first guide rod is slidably mounted on the first supporting portion, the first positioning plate is arranged on the first guide rod, the first supporting portion is provided with the pressure sensor, and an elastic piece is arranged between the pressure sensor and the first positioning plate.
6. The lithium battery cell casing pressure test device of claim 4, wherein: the second positioning seat comprises a second guide rod and a second positioning plate, the second guide rod is slidably mounted on the second supporting portion, the second positioning plate is arranged on the second guide rod, a driving plate is fixedly mounted on the second guide rod, the driving plate is connected with the sliding block, and the driving plate is connected with the driving device.
7. The lithium battery cell casing pressure test device of claim 3, wherein: the driving device comprises a rotating motor, a ball screw connected with the rotating motor and a screw nut matched with the ball screw, and the screw nut is arranged on the driving plate.
8. The lithium battery cell casing pressure test device of claim 3, wherein: and a tension spring is arranged between the second supporting part and the driving plate.
9. The lithium battery cell casing pressure test device of claim 6, wherein: concave-convex parts are arranged on the opposite end surfaces of the first positioning plate and the second positioning plate.
10. The lithium battery cell casing pressure test device of claim 1, wherein: the first electric connection part and the second electric connection part are identical in structure and comprise metal clamping arms which can be relatively close to each other, and the clamping arms are connected with a power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123321581.3U CN216595442U (en) | 2021-12-24 | 2021-12-24 | Lithium battery shell pressure test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123321581.3U CN216595442U (en) | 2021-12-24 | 2021-12-24 | Lithium battery shell pressure test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216595442U true CN216595442U (en) | 2022-05-24 |
Family
ID=81629454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123321581.3U Active CN216595442U (en) | 2021-12-24 | 2021-12-24 | Lithium battery shell pressure test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216595442U (en) |
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2021
- 2021-12-24 CN CN202123321581.3U patent/CN216595442U/en active Active
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