Thickness detection device and system thereof

Abstract

The utility model relates to the field of battery cell detection, in particular to a thickness detection device and a system thereof, the device is used for detecting the thickness of a battery cell, the device comprises a placing bottom plate, a pressing device is arranged in an area above the placing bottom plate, a first servo motor is arranged on the pressing device, the pressing device can move in a reciprocating manner, and a second servo motor is arranged on the pressing device. The pressing device is provided with a pressure sensor, the pressure sensor is in communication connection with the first servo motor, and the pressure sensor is matched with the first servo motor and the pressing device and the placement bottom plate; the accuracy of a detection result is improved, and the problem that the overall tolerance of the PACK is too large due to the fact that the thickness deviation of the battery cell is large or the technology is adopted is solved.

Description

Technical Field

[0001] The utility model relates to the field of battery core detection, in particular to a thickness detection device and a system thereof. Background Art

[0002] During the assembly process of existing battery PACKs, due to the negative or positive deviation of the battery cell thickness in batches, the standard steel belt may not be tied tightly and there is a risk of falling off during transportation. If the battery cell is too thick, the steel belt may not be able to be put on, or the risk of thermal runaway may increase during the charging and discharging process. In the traditional battery cell thickness detection process, the thickness of the battery cell is usually measured manually with a handheld caliper. Since it is difficult to keep the clamping force of the battery cell constant during manual measurement, and there are also measurement differences between different operators, there is a lot of uncertainty in the battery cell thickness measurement process, which greatly reduces the accuracy of the battery cell thickness measurement. Utility Model Content

[0003] The purpose of the utility model is to provide a thickness detection device and a detection system to solve the problem of low accuracy in traditional battery thickness testing in the prior art.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A thickness detection device is used to detect the thickness of a battery cell. The device includes a placement base plate, a pressing device is provided in the area above the placement base plate, a first servo motor is provided on the pressing device, the pressing device can reciprocate, a pressure sensor is provided on the pressing device, and the pressure sensor is communicatively connected with the first servo motor.

[0006] The utility model discloses a thickness detection device, wherein a placement base plate for placing battery cells is provided in the device, and a pressing device capable of reciprocating movement is also provided in the area above the placement base plate, so that the battery cells can be clamped by the pressing device and the placement base plate, and the subsequent measurement of the thickness of the battery cells is convenient, and a first servo motor is provided on the pressing device, and the pressing device can realize reciprocating movement through the first servo motor, and a pressure sensor which is communicatively connected with the first servo motor is provided at the lower end of the pressing device, so that after the pressing device contacts the battery cells during the pressing process, a signal is output to the first servo motor to control the servo motor to stop, and then the number of rotations of the motor is obtained through the motor encoder in the servo motor, and the travel distance of the pressing device is calculated according to the number of rotations, so as to obtain the thickness of the battery cells, and the cooperation of the pressure sensor with the first servo motor and the pressing device with the placement base plate improves the accuracy of the detection result, solves the problem of large overall tolerance of PACK caused by large deviation of battery cell thickness or process.

[0007] As a preferred solution of the utility model, a guide rail mechanism is connected to one side of the pressing device, one end of the guide rail mechanism is connected to the pressing device, and the other end is connected to the placement base plate. This arrangement enables the battery cell to be stably clamped, avoiding the situation where the battery cell becomes loose and causes unstable detection results.

[0008] As a preferred solution of the utility model, the pressing device includes a pressing plate, a connecting plate is provided at one end of the pressing plate, the connecting plate and the pressing plate are arranged perpendicular to each other, and the connecting plate is connected to the guide rail mechanism, and the pressing plate and the placement base plate are arranged opposite to each other. In this way, the pressing device and the placement base plate are connected as a whole through the guide rail mechanism, thereby ensuring the movement direction of the pressing device and improving the accuracy of detection.

[0009] As a preferred solution of the utility model, a reinforcing plate is provided between the pressing plate and the connecting plate, one end of the reinforcing plate is connected to the pressing plate, and the other end is connected to the connecting plate. This arrangement enhances the structural stability of the pressing device.

[0010] A detection system includes the above-mentioned thickness detection device, the system includes a box body, the box body is provided with a containing bin, the thickness detection device is arranged in the containing bin, the box body is provided with a control device, and the control device is communicatively connected with the first servo motor.

[0011] The utility model is a detection system. By arranging a thickness detection device in the detection system, the detection system can detect the thickness of the battery cell in real time, and calculate the thickness of the battery cell through the pressure sensor and the servo motor in the thickness detection device, so that the detection data is more accurate.

[0012] As a preferred solution of the utility model, a bottom support reciprocating mechanism is provided in the accommodating bin, the bottom support reciprocating mechanism is located at the lower end of the placement bottom plate, and the bottom support reciprocating mechanism is connected to the placement bottom plate. This arrangement enables the detection system to adapt to different types of battery cells.

[0013] As a preferred solution of the utility model, the bottom support reciprocating mechanism includes a pair of sliding devices, and a second servo motor is provided between the two sliding devices. This arrangement ensures that the bottom support reciprocating mechanism can move normally.

[0014] As a preferred solution of the utility model, an alarm light is provided on the top of the box body, such an arrangement enables the operator to see the warning intuitively.

[0015] As a preferred solution of the utility model, the bottom of the box is provided with rollers, and the bottom of the box is provided with a detachable tripod, such an arrangement enables the box to be moved and also avoids displacement of the box during use.

[0016] As a preferred solution of the present invention, the containing chamber is made of a transparent material, which makes it convenient for operators to observe.

[0017] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0018] 1. The utility model is a thickness detection device, which is provided with a placement base plate for placing battery cells, and a pressing device capable of reciprocating movement is also provided in the area above the placement base plate, so that the battery cells can be clamped by the pressing device and the placement base plate to facilitate the subsequent measurement of the battery cell thickness, and a first servo motor is provided on the pressing device, and the pressing device can realize reciprocating movement through the first servo motor, and a pressure sensor which is communicatively connected with the first servo motor is provided at the lower end of the pressing device, so that after the pressing device contacts the battery cell during the pressing process, the first servo motor is output with a signal to control the servo motor to stop, and then the number of rotations of the motor is obtained through the motor encoder in the servo motor, and the travel distance of the pressing device is calculated according to the number of rotations, so as to obtain the battery cell thickness, and the pressure sensor is cooperated with the first servo motor and the pressing device and the placement base plate to improve the accuracy of the detection result, solve the problem of large overall tolerance of the PACK caused by large deviation of the battery cell thickness or process.

[0019] 2. The utility model is a detection system. By arranging a thickness detection device in the detection system, the detection system can detect the thickness of the battery cell in real time, and calculate the thickness of the battery cell through the pressure sensor and servo motor in the thickness detection device, so that the detection data is more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a front view structural schematic diagram of the detection system of the utility model;

[0021] Figure 2 It is a schematic diagram of the structure of the detection system of the utility model when viewed from above;

[0022] Figure 3 It is an isometric structural schematic diagram of the detection system of the utility model;

[0023] Figure 4 This utility model Figure 3 A magnified image of point A;

[0024] Figure 5 This utility model Figure 3 Enlarged view of point B.

[0025] Icons: 1-pressing device; 11-pressing plate; 12-connecting plate; 13-reinforcing plate; 2-placing base plate; 3-first servo motor; 4-guide rail mechanism; 5-box; 51-bottom support reciprocating mechanism; 511-sliding device; 512-second servo motor; 52-alarm light; 53-roller; 54-detachable tripod; 55-storage compartment. DETAILED DESCRIPTION

[0026] The utility model is described in detail below in conjunction with the accompanying drawings.

[0027] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0028] Example 1

[0029] like Figure 1-2 A thickness detection device is shown, the device comprises a placement base plate 2 for carrying battery cells, and a pressing device 1 is provided in the upper area of ​​the placement base plate 2, and a first servo motor 3 is provided on the pressing device 1, and the pressing device 1 can perform vertical reciprocating motion through the first servo motor 3, so that the pressing device 1 can contact the battery cells on the placement base plate 2, so that the battery cells on the placement base plate 2 can be clamped;

[0030] Furthermore, a pressure sensor is provided at the lower end of the pressing device 1, and the pressure sensor is communicated with the first servo motor 3. In this way, when the pressing device 1 contacts the battery cell, the pressure sensor is subjected to external pressure and controls the first servo motor 3 to stop working. Subsequently, the number of rotations of the motor can be known through the motor encoder of the first servo motor 3. In this way, the operator can calculate the moving distance of the pressing device 1 based on the number of rotations, thereby deriving the thickness of the battery cell.

[0031] As mentioned above, one side of the pressing device 1 is connected to a guide rail mechanism 4, and one end of the guide rail mechanism 4 is connected to the pressing device 1, and the other end of the guide rail mechanism 4 is connected to the placement base plate 2, so that the pressing device 1 can reciprocate along the guide rail mechanism 4 through the control of the first servo motor 3, ensuring the linear motion of the pressing device 1, so that the subsequent measurement results are more accurate;

[0032] Furthermore, the pressing device 1 includes a pressing plate 11 for clamping the battery cell, and a connecting plate 12 is provided at one end of the pressing plate 11, the connecting plate 12 and the pressing plate 11 are arranged perpendicular to each other, the connecting plate 12 is connected to the guide rail mechanism 4, and the pressing plate 11 is arranged opposite to the placement bottom plate 2. In this way, the pressing device 1 and the placement bottom plate 2 are connected as a whole through the guide rail mechanism 4, so as to ensure the movement direction of the pressing device 1 and improve the accuracy of the detection, such as Figure 1 and Figure 5 shown.

[0033] As mentioned above, a reinforcing plate 13 is provided between the pressing plate 11 and the connecting plate 12, and the reinforcing plate 13 can ensure the overall structural stability of the pressing device 1. Figure 5 shown.

[0034] Example 2

[0035] like Figure 1-3 A retrieval system shown includes a thickness detection device mentioned in Example 1, the system includes a box 5, and the box 5 is used to carry the thickness detection device, and a storage bin 55 is provided in the box 5, and the thickness detection device is installed in the storage bin 55;

[0036] Furthermore, a control device is also provided on the box body 5, and the control device is communicatively connected with the first servo motor.

[0037] As mentioned above, a bottom support reciprocating mechanism 51 is provided in the storage bin 55, and a bottom plate 2 is provided at the upper end of the bottom support reciprocating mechanism 51, so that the bottom plate 2 can realize reciprocating motion in the horizontal direction by relying on the bottom support reciprocating mechanism 51, so that the detection system can adapt to batteries of different sizes, such as Figure 3 shown.

[0038] As mentioned above, a warning light 52 is provided on the top of the box 5, so that the operator can see the warning light intuitively. Figure 3 shown.

[0039] As mentioned above, the bottom of the box body 5 is provided with rollers 53, so that the box body 5 can be moved freely and is convenient for transportation;

[0040] Furthermore, a detachable stand 54 is provided at the bottom of the box 5. By providing the detachable stand 54, the box 5 can limit the rolling of the roller 53 when in use, thereby preventing the box 5 from being displaced during use. Figure 3 shown.

[0041] 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 and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A thickness detection device, which is used to detect the thickness of a battery cell, characterized in that: The device comprises a placement base plate (2), a pressing device (1) is provided in the upper area of ​​the placement base plate (2), a first servo motor (3) is provided on the pressing device (1), the pressing device (1) can reciprocate, a pressure sensor is provided on the pressing device (1), the pressure sensor is communicatively connected with the first servo motor (3), one side of the pressing device (1) is connected with a guide rail mechanism (4), one end of the guide rail mechanism (4) is connected to the pressing device (1), and the other end is connected to the placement base plate (2), the pressing device (1) comprises a pressing plate (11), one end of the pressing plate (11) is provided with a connecting plate (12), the connecting plate (12) and the pressing plate (11) are arranged perpendicular to each other, and the connecting plate (12) is connected to the guide rail mechanism (4), and the pressing plate (11) and the placement base plate (2) are arranged opposite to each other.

2. A thickness detection device according to claim 1, characterized in that: A reinforcing plate (13) is provided between the pressing plate (11) and the connecting plate (12); one end of the reinforcing plate (13) is connected to the pressing plate (11), and the other end is connected to the connecting plate (12).

3. A detection system, characterized in that: The system comprises a thickness detection device according to any one of claims 1 to 2, comprising a box body (5), wherein the box body (5) is provided with a containing bin (55), and the thickness detection device is arranged in the containing bin (55).

4. A detection system according to claim 3, characterized in that: A bottom support reciprocating mechanism (51) is provided in the containing bin (55), the bottom support reciprocating mechanism (51) is located at the lower end of the placement bottom plate (2), and the bottom support reciprocating mechanism (51) is connected to the placement bottom plate (2).

5. A detection system according to claim 4, characterized in that: The bottom support reciprocating mechanism (51) comprises a pair of sliding devices (511), and a second servo motor (512) is provided between the two sliding devices (511).

6. A detection system according to claim 3, characterized in that: The top of the box (5) is provided with an alarm light (52).

7. A detection system according to claim 3, characterized in that: A roller (53) is provided at the bottom of the box body (5), and a detachable tripod (54) is provided at the bottom of the box body (5).

8. A detection system according to claim 3, characterized in that: The containing chamber (55) is made of transparent material.

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