CN219037883U - Battery step height detection device - Google Patents
Battery step height detection device Download PDFInfo
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- CN219037883U CN219037883U CN202222552167.1U CN202222552167U CN219037883U CN 219037883 U CN219037883 U CN 219037883U CN 202222552167 U CN202222552167 U CN 202222552167U CN 219037883 U CN219037883 U CN 219037883U
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Abstract
The utility model provides a battery step height detection device, which belongs to the technical field of lithium battery production and manufacturing, and comprises: a driving structure; the mounting structure is in transmission connection with the driving structure, and a first detection part is arranged on the mounting structure; the probe is arranged on the mounting structure, the probe can move along the height direction of the battery step, a second detection part is arranged on the probe, and the probe is provided with a communication position where the first detection part and the second detection part are mutually abutted, and a disconnection position where the first detection part and the second detection part are mutually separated. According to the battery step height detection device provided by the utility model, when the mounting structure moves to the preset position, if the first detection part and the second detection part are in abutting connection, the battery step height is qualified, and if the first detection part and the second detection part are separated and disconnected, the battery step height is unqualified, so that a 3D profiler is not required to be used for step height detection, and the production cost is reduced.
Description
Technical Field
The utility model relates to the technical field of lithium battery production and manufacturing, in particular to a battery step height detection device.
Background
After the battery cell is pressed into the shell, a step structure is formed between the upper surface of the top cover and the upper end of the shell, the upper end of the shell needs to be higher than the upper surface of the top cover, and the height difference needs to be within a preset range. In the prior art, a linear module is generally used for driving a 3D profiler to scan a battery so as to identify a battery with a unqualified step height, and the battery is marked so as to be discharged as a unqualified product in a subsequent process. However, 3D profilers are expensive, resulting in increased production costs.
Disclosure of Invention
Therefore, the technical problem to be solved by the utility model is to overcome the defect that the production cost is increased due to the fact that the 3D profiler is used as a battery step height detection device in the prior art, so that the battery step height detection device is provided.
In order to solve the above-described problems, the present utility model provides a battery step height detection apparatus comprising: a driving structure; the mounting structure is in transmission connection with the driving structure, and a first detection part is arranged on the mounting structure; the probe is arranged on the mounting structure, the probe can move along the height direction of the battery step, a second detection part is arranged on the probe, and the probe is provided with a communication position where the first detection part and the second detection part are mutually abutted, and a disconnection position where the first detection part and the second detection part are mutually separated.
Optionally, the first detection portion includes a first detection unit, the second detection portion includes a second detection unit, the first detection unit and/or the second detection unit are electrically connected to be provided with a transmission unit, and the transmission unit is adapted to transmit communication signals of the first detection unit and the second detection unit to the control unit.
Optionally, the first detection unit and the second detection unit are copper sheets.
Optionally, the mounting structure includes mount pad, floating seat and elastic connection subassembly, the mount pad with drive structure connects, elastic connection subassembly connect in the mount pad with between the floating seat, the probe set up in on the floating seat.
Optionally, the floating seat interval is provided with a plurality of, every the floating seat with all be provided with between the mount pad elastic connection subassembly.
Optionally, the floating seat includes locating plate and installation piece, the constant head tank has been seted up on the locating plate, the inner wall of constant head tank is suitable for with the outer wall looks butt of shell, the installation piece set up in on the locating plate, the probe runs through the installation piece sets up and extends to in the constant head tank, first detection portion set up in on the installation piece.
Optionally, a mounting hole is formed in the mounting block, the mounting hole is a through hole, the probe is arranged in the mounting hole, and an elastic reset structure is arranged between the hole wall of the mounting hole and the probe.
Optionally, the installation piece is provided with a plurality of, every installation piece is last to be provided with a plurality of the probe at intervals.
Optionally, the elastic connection assembly comprises a guide post and an elastic piece, one end of the guide post is connected with the floating seat, the other end of the guide post is inserted in the mounting seat, and the elastic piece is sleeved outside the guide post and is located between the mounting seat and the floating seat.
Optionally, a linear bearing is disposed between the guide post and the mounting seat.
The utility model has the following advantages:
1. according to the battery step height detection device provided by the utility model, the driving structure is used for driving the mounting structure to move towards the battery to be detected, when the probe contacts the top cover of the battery, the top cover ejects the probe upwards, when the mounting structure moves to the preset position, if the first detection part and the second detection part are in abutting connection, the battery step height is qualified, and if the first detection part and the second detection part are disconnected, the battery step height is not qualified, so that a 3D profiler is not required to be used for step height detection, and the production cost is reduced.
2. According to the battery step height detection device provided by the utility model, the mounting seat and the floating seat are connected by the elastic connecting assembly, so that the floating seat can form a floatable structure, and therefore, the battery step height detection device can be compatible with the height error of a battery, and the stable matching of the floating seat and a battery shell is ensured.
3. According to the battery step height detection device provided by the utility model, the number of the floating seats is several, so that the cost is saved, a plurality of batteries can be detected at the same time, and the detection efficiency is improved.
4. According to the battery step height detection device provided by the utility model, the positioning grooves formed in the positioning plate are matched with the outer wall of the shell to position, so that the accuracy of the detection positions of the probes is ensured.
5. According to the battery step height detection device provided by the utility model, the plurality of probes are arranged to detect different positions of the steps, so that the heights of the different positions of the steps are ensured to be in a qualified state.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic view showing the overall structure of a battery step height detection device according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram showing a cross-sectional front view of a floating seat according to an embodiment of the present utility model;
FIG. 3 is a top view of FIG. 2;
FIG. 4 is an enlarged view of FIG. 2 at A;
FIG. 5 is an enlarged view at B in FIG. 2;
fig. 6 is a schematic diagram showing a partial structure of a battery step height detection device according to an embodiment of the present utility model when the battery step height detection device is detected to be acceptable;
fig. 7 is a schematic view showing a partial structure of a first state of the battery step height detection device according to the embodiment of the present utility model when detecting failure;
fig. 8 is a schematic view showing a partial structure of a second state of the battery step height detection device according to the embodiment of the present utility model when detecting failure.
Reference numerals illustrate:
10. a driving structure; 20. a mounting structure; 21. a first detection unit; 211. a first detection unit; 212. a transmission unit; 22. a mounting base; 23. a floating seat; 231. a positioning plate; 2311. a positioning groove; 232. a mounting block; 2321. a mounting hole; 24. an elastic connection assembly; 241. a guide post; 242. an elastic member; 243. a linear bearing; 30. a probe; 31. a second detection unit; 100. a battery; 110. a housing; 120. and a top cover.
Detailed Description
The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In addition, the technical features of the different embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.
One embodiment of the battery step height detection apparatus as shown in fig. 1 to 8 includes: a drive structure 10, a mounting structure 20 and a probe 30. The driving structure 10 is in transmission connection with the mounting structure 20, the mounting structure 20 is provided with a first detection part 21, and the probe 30 is arranged on the mounting structure 20. The probe 30 is movable in the height direction of the step of the battery 100, and a second detecting portion 31 is provided on the probe 30. The probe 30 has a communication position where the first detection portion 21 and the second detection portion 31 are in contact with each other, and a disconnection position where the first detection portion 21 and the second detection portion 31 are separated from each other.
It should be noted that, the "step of battery 100" mentioned above means that the top end of case 110 of battery 100 needs to be higher than the upper surface of top cover 120 of battery 100, and thus, the top end of case 110 and the upper surface of top cover 120 form a "step". Therefore, the height direction of the step of the battery 100 is the height direction of the battery 100.
When the driving structure 10 is used for driving the mounting structure 20 to move towards the battery 100 to be detected, and the probe 30 is pushed upwards by the top cover 120 when the probe 30 contacts with the top cover 120 of the battery 100, when the mounting structure 20 moves to a preset position, if the first detection part 21 is in abutting connection with the second detection part 31, the step height of the battery 100 is qualified, if the first detection part 21 is separated from the second detection part 31, the step height of the battery 100 is unqualified, therefore, a 3D profiler is not required to be used for step height detection, and the production cost is reduced.
In the present embodiment, as shown in fig. 4, the first detecting portion 21 includes a first detecting unit 211 and a transmitting unit 212, and the second detecting portion 31 includes a second detecting unit, and the first detecting unit 211 and the transmitting unit 212 are electrically connected. When the first detection unit 211 and the second detection unit are in abutting communication, the transmission unit 212 can transmit a communication signal to the control unit.
In this embodiment, the first detecting unit 211 and the second detecting unit are copper sheets, the transmission unit 212 is an electric wire, and the control unit is a PLC (programmable logic controller).
It should be noted that the transmission unit 212 may be electrically connected to the second detection unit, or the first detection unit 211 and the second detection unit are both electrically connected to the transmission unit 212.
As shown in fig. 1 and 2, the mounting structure 20 includes a mounting base 22, a floating base 23, and an elastic connection assembly 24, the mounting base 22 is connected to the driving structure 10, the elastic connection assembly 24 is connected between the mounting base 22 and the floating base 23, and the probe 30 is disposed on the floating base 23.
The elastic connection assembly 24 is used for connecting the mounting seat 22 and the floating seat 23, so that the floating seat 23 forms a floatable structure, and therefore, the battery step height detection device can be compatible with the height error of the battery 100, and the stable matching of the floating seat 23 and the battery 100 shell 110 is ensured.
It should be noted that, there is a certain range of height error of the housing 110 of the battery 100, and therefore, the floating seat 23 is configured to be floatable in the height direction, so that the floating seat 23 can be fully attached to the housing 110.
In this embodiment, as shown in fig. 1, a plurality of floating seats 23 are arranged on one mounting seat 22 at intervals side by side, and the above elastic connection assembly 24 is arranged between each floating seat 23 and the mounting seat 22.
The floating seats 23 are arranged in a plurality, so that the cost is saved, the batteries 100 can be detected simultaneously, and the detection efficiency is improved.
It should be noted that during the production of the battery 100, a set typically includes four batteries 100, and because 3D profilers are expensive, they are typically only provided with two batteries, and therefore, one set of batteries 100 needs to be tested in two times. In the present embodiment, referring to fig. 1, four floating seats 23 are provided, so that a group of batteries 100 can be detected at the same time, thereby improving the detection efficiency.
As shown in fig. 2 and 3, the floating seat 23 includes a positioning plate 231 and a mounting block 232, the positioning plate 231 is provided with a positioning groove 2311, the inner wall of the positioning groove 2311 is suitable for being abutted against the outer wall of the housing 110, the mounting block 232 is disposed on the positioning plate 231, the probe 30 penetrates the mounting block 232 and extends into the positioning groove 2311, and the first detecting portion 21 is disposed on the mounting block 232.
Positioning is performed by matching a positioning groove 2311 formed in the positioning plate 231 with the outer wall of the housing 110, so that the accuracy of the detection position of each probe 30 is ensured; and, preliminary shaping and positioning of the housing 110 and the top cover 120 can be performed.
In this embodiment, as shown in fig. 5, the lower end wall of the positioning groove 2311 is provided with an outwardly-expanding chamfer, so that the positioning plate 231 is conveniently sleeved outside the housing 110 through the positioning groove 2311, and smooth matching of the positioning plate 231 and the housing 110 is ensured.
As shown in fig. 4, a mounting hole 2321 is formed in the mounting block 232, the mounting hole 2321 is a through hole, the probe 30 is disposed in the mounting hole 2321, and an elastic reset structure is disposed between the hole wall of the mounting hole 2321 and the probe 30. After the step height detection by using the probe 30 is completed, the probe 30 is driven to move to the initial position by the elastic reset structure.
In this embodiment, as shown in fig. 4, the mounting hole 2321 is a countersunk hole structure, and the first detection unit 211 is located in a countersunk hole section of the mounting hole 2321.
As shown in fig. 2 and 3, each positioning plate 231 is provided with a plurality of mounting blocks 232, and each mounting block 232 is provided with a plurality of probes 30 at intervals. By arranging a plurality of probes 30 to detect different positions of the steps, the heights of the different positions of the steps are ensured to be in a qualified state.
In the present embodiment, as shown in fig. 2 and 3, two mounting blocks 232 are provided on each positioning plate 231, and two probes 30 are provided on each mounting block 232. Therefore, in detecting one battery 100, four probes 30 are simultaneously used, and the four probes 30 are distributed at four corners of the top of the battery 100 to simultaneously detect the step heights at the four corners.
It should be noted that, only when the second detecting portions 31 on the four probes 30 and the corresponding first detecting portions 21 on the mounting block 232 are respectively connected, the step height is qualified.
Of course, the number and positions of the mounting blocks 232, and the number and positions of the probes 30 may be specifically set according to the shape and size of the battery 100 to be detected.
As shown in fig. 1 and 2, the elastic connection assembly 24 includes a guide post 241 and an elastic member 242, one end of the guide post 241 is fixedly connected with the floating seat 23, the other end of the guide post 241 is inserted into the mounting seat 22, and the elastic member 242 is sleeved outside the guide post 241 and is located between the mounting seat 22 and the floating seat 23.
Specifically, in the present embodiment, as shown in fig. 1 and 2, the lower end of the guide post 241 is fixedly connected to the positioning plate 231, the upper end of the guide post 241 penetrates through the mounting seat 22, and the guide post 241 is movably disposed between the mounting seat 22.
In the present embodiment, as shown in fig. 1 and 2, a linear bearing 243 is provided between the guide post 241 and the mount 22.
As shown in fig. 1, the driving structure 10 is a linear driving module. Specifically, the linear driving module can be a combination of a servo motor and a screw rod, and can also be a linear motor.
It should be noted that, in the present embodiment, the driving direction of the linear driving module is a vertical direction. It will be appreciated that the linear drive modules may also be bi-directional drive modules or tri-directional drive modules, depending on the production needs and the arrangement of stations.
When the step height detection device of the present embodiment is used to detect the height of the step formed by the housing 110 and the top cover 120 of the battery 100, firstly, the driving structure 10 drives the mounting seat 22 to move downwards to a designated height, the floating seat 23 descends synchronously, and the positioning groove 2311 of the positioning plate 231 is completely attached to the housing 110 under the action of the elastic connection assembly 24; meanwhile, after the lower end of the probe 30 contacts with the top cover 120, the top cover 120 can lift the probe 30, and whether the step height detection structure is qualified is determined by whether the first detection unit 211 and the second detection unit can be in contact with each other.
It should be noted that, in the conventional manufacturing process, it is generally necessary to make the step height of the battery 100 0-0.1mm, that is, to make the upper end of the case 110 higher than the upper surface of the top cover 120 and not higher than 0.1mm.
Specifically, as shown in fig. 6, when the step height of the battery 100 is in the range of 0-0.1mm, after the probe 30 is lifted, the second detection unit on the probe 30 moves to be in abutting connection with the first detection unit 211 on the mounting block 232, and the communication signal is transmitted to the PLC through the electric wire, that is, the PLC receives the qualified signal; as shown in fig. 7, when the step height of the battery 100 is greater than 0.1mm (i.e., the position of the top cover 120 within the housing 110 is too low), the lower end of the probe 30 cannot contact the top cover 120, i.e., the probe 30 cannot be lifted up, or, when the lower end of the probe 30 can contact the top cover 120 and be lifted up by the top cover 120, the lifting height of the probe 30 is too small, so that the first detection unit 211 and the second detection unit cannot abut and communicate, and thus the PLC does not receive a pass signal; as shown in fig. 8, when the upper surface of the top cover 120 is higher than the upper end of the housing 110, the probe 30 is lifted too high, so that the second detecting unit on the probe 30 is higher than the first detecting unit 211 on the mounting block 232, and the first detecting unit 211 and the second detecting unit cannot abut and communicate, so that the PLC does not receive a qualified signal.
According to the above description, the present patent application has the following advantages:
1. step height detection is not required to be carried out by using a 3D profiler, so that the production cost is reduced;
2. the battery detection device can detect a plurality of batteries simultaneously, and improves detection efficiency.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the utility model.
Claims (10)
1. A battery step height detection device, characterized by comprising:
a drive structure (10);
the mounting structure (20) is in transmission connection with the driving structure (10), and a first detection part (21) is arranged on the mounting structure (20);
the probe (30) is arranged on the mounting structure (20), the probe (30) can move along the height direction of the step of the battery (100), a second detection part (31) is arranged on the probe (30), the probe (30) is provided with a communication position where the first detection part (21) and the second detection part (31) are in mutual contact, and a disconnection position where the first detection part (21) and the second detection part (31) are separated from each other.
2. The battery step height detection device according to claim 1, wherein the first detection part (21) comprises a first detection unit (211), the second detection part (31) comprises a second detection unit, the first detection unit (211) and/or the second detection unit are/is electrically connected to be provided with a transmission unit (212), and the transmission unit (212) is adapted to transmit communication signals of the first detection unit (211) and the second detection unit to a control unit.
3. The battery step height detection device according to claim 2, wherein the first detection unit (211) and the second detection unit are both copper sheets.
4. A battery step height detection device according to any one of claims 1-3, wherein the mounting structure (20) comprises a mounting seat (22), a floating seat (23) and an elastic connection assembly (24), the mounting seat (22) is connected with the driving structure (10), the elastic connection assembly (24) is connected between the mounting seat (22) and the floating seat (23), and the probe (30) is arranged on the floating seat (23).
5. The battery step height detection device according to claim 4, wherein a plurality of floating seats (23) are provided at intervals, and the elastic connection assembly (24) is provided between each floating seat (23) and the mounting seat (22).
6. The battery step height detection device according to claim 4, wherein the floating seat (23) comprises a positioning plate (231) and a mounting block (232), a positioning groove (2311) is formed in the positioning plate (231), the inner wall of the positioning groove (2311) is suitable for being abutted against the outer wall of the housing (110), the mounting block (232) is arranged on the positioning plate (231), the probe (30) penetrates through the mounting block (232) and extends into the positioning groove (2311), and the first detection part (21) is arranged on the mounting block (232).
7. The battery step height detection device according to claim 6, wherein a mounting hole (2321) is formed in the mounting block (232), the mounting hole (2321) is a through hole, the probe (30) is disposed in the mounting hole (2321), and an elastic reset structure is disposed between a hole wall of the mounting hole (2321) and the probe (30).
8. The battery step height detection device according to claim 6, wherein the mounting blocks (232) are provided in plurality, and a plurality of the probes (30) are provided on each of the mounting blocks (232) at intervals.
9. The battery step height detection device according to claim 4, wherein the elastic connection assembly (24) comprises a guide post (241) and an elastic piece (242), one end of the guide post (241) is connected with the floating seat (23), the other end of the guide post (241) is inserted into the mounting seat (22), and the elastic piece (242) is sleeved outside the guide post (241) and is located between the mounting seat (22) and the floating seat (23).
10. The battery step height detection device according to claim 9, wherein a linear bearing (243) is provided between the guide post (241) and the mount (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222552167.1U CN219037883U (en) | 2022-09-26 | 2022-09-26 | Battery step height detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222552167.1U CN219037883U (en) | 2022-09-26 | 2022-09-26 | Battery step height detection device |
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| CN219037883U true CN219037883U (en) | 2023-05-16 |
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| CN202222552167.1U Active CN219037883U (en) | 2022-09-26 | 2022-09-26 | Battery step height detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117148450A (en) * | 2023-10-30 | 2023-12-01 | 宁德时代新能源科技股份有限公司 | Liquid injection hole detection tool, detection equipment and detection method |
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2022
- 2022-09-26 CN CN202222552167.1U patent/CN219037883U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117148450A (en) * | 2023-10-30 | 2023-12-01 | 宁德时代新能源科技股份有限公司 | Liquid injection hole detection tool, detection equipment and detection method |
| CN117148450B (en) * | 2023-10-30 | 2024-04-02 | 宁德时代新能源科技股份有限公司 | Liquid injection hole detection tool, detection equipment and detection method |
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