Novel protection sheet positioning cover plate for power battery ultrasonic welding

Abstract

The utility model provides a novel protective sheet positioning cover plate for power battery ultrasonic welding, which comprises a base, a battery fixing mechanism mounted at the top end of the base, a positioning cover plate mounted in the center of the top end of the base, a protective sheet placing mechanism mounted at the top end of the positioning cover plate, and an opening mechanism mounted at the right end of the protective sheet placing mechanism. The center of the positioning cover plate is provided with a cathode protection sheet and an anode protection sheet. According to the novel protection sheet positioning cover plate for ultrasonic welding of the power battery, the transmission plate, the clamping groove and other structures are arranged, and the effects of automatically opening and closing the clamping groove and clamping the protection sheet can be achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of power battery manufacturing, and more specifically to a novel protective sheet positioning cover plate for power battery ultrasonic welding. Background Art

[0002] Existing ultrasonic welding carriers basically use the cover plate to position the protective sheet. First, put the connecting sheet into the bottom of the fixture and position it, then put the battery cell tab on top of the connecting sheet, and then buckle the cover plate to press the tab. The protective sheet is put into the square groove of the cover plate and placed above the tab. On the one hand, the cover plate flattens the tab, and on the other hand, it must ensure that the welding head can enter smoothly, and it must also take into account the function of positioning the protective sheet. Since the protective sheet is thin and relatively soft and easy to deform, pure square groove positioning can easily cause the protective sheet to be flanging and bending and deforming. In addition, the protective sheet is also easy to come out of the gap between the bottom of the cover plate and the top of the tab, causing skew or misalignment. The tab is relatively elastic. When the protective sheet is placed on the tab, it is easy for the suction cup to leave and the protective sheet to be ejected by the tab, resulting in a scrap rate as high as 1% to 2%.

[0003] The utility model can play the role of automatically opening and closing the card slot and clamping the protection sheet. Utility Model Content

[0004] The utility model aims to solve the technical problems raised by the above-mentioned background technology and provides a new protective sheet positioning cover for ultrasonic welding of power batteries, which can achieve the effect of automatically opening and closing the card slot and clamping the protective sheet.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a new type of protective sheet positioning cover for ultrasonic welding of power batteries, comprising: a base, a battery fixing mechanism is installed on the top of the base, a positioning cover is installed in the center of the top of the base, a protective sheet placement mechanism is installed on the top of the positioning cover, an opening mechanism is installed on the right end of the protective sheet placement mechanism, and a negative electrode protection sheet and a positive electrode protection sheet are installed in the center of the positioning cover.

[0006] A further preferred solution: the positioning cover comprises: a cover body, a slot, a transmission plate, a guide piece and a cover handle. The cover body is installed in the center of the base, a guide piece is installed on the right side of the top of the cover body, the top of the cover body is connected to the cover handle, a transmission plate is installed in the center of the cover body, and the slot is connected to the right end of the transmission plate.

[0007] A further preferred solution: a placement through hole is respectively opened on the front and rear sides of the center of the cover plate body, an installation groove is opened in the center of the front and rear ends of the placement through hole, a transmission plate is installed in the center of the installation groove, there are four groups of card slots and transmission plates, and the four groups of card slots and transmission plates are respectively installed in four limit slots.

[0008] A further preferred solution: the front end of the right end of the transmission plate is connected to a clamping plate, and the top end of the clamping plate is connected to an arc-shaped plate.

[0009] A further preferred solution is that a plurality of spring mounting holes are provided in the center of the right end of the guide member, a connecting spring is installed in the center of the spring mounting hole, and a clamping plate is connected to the outer end of the connecting spring.

[0010] A further preferred solution is that a plurality of sliding grooves are provided at the left end of the guide member, and a transmission plate is installed in the sliding groove.

[0011] A further preferred solution is that a V-shaped snap-in groove is provided at the front end of the snap-in groove.

[0012] Beneficial effects:

[0013] 1. The effect of automatically opening and closing the card slot is achieved by providing a transmission plate; when the wedge-shaped block of the opening mechanism moves downward into the center of the clamping plate, the clamping plate moves to both sides, driving the transmission plate to move to the left and right, thereby driving the card slot to move to both sides, thereby automatically opening the card slot so that the protective sheet can be placed in the center of the card slot; when the opening mechanism moves upward, the wedge-shaped block of the opening mechanism moves out of the clamping plate, and the clamping plate moves toward the center under the elastic force of the spring, driving the transmission plate to move toward the center, thereby driving the card slot to move toward the center, thereby automatically closing the card slot so that the card slot clamps the central protective sheet;

[0014] 2. The card slot is provided to clamp the protective sheet; a V-shaped card slot is provided at the front end of the card slot to facilitate clamping the protective sheet. When the protective sheet is put in place, the card slot automatically clamps the protective sheet, completely controlling the protective sheet to prevent it from being lifted up by the suction cup of the protective sheet placement mechanism, and also to prevent it from being ejected by the tab, and to eliminate the risk of being strung out from below;

[0015] 3. In summary, the new protective sheet positioning cover plate used for ultrasonic welding of power batteries can automatically open and close the card slot and clamp the protective sheet by providing structures such as a transmission plate and a card slot. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model.

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of the pole ear, positioning cover plate, connecting sheet and protective sheet of the utility model.

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the positioning cover plate of the utility model.

[0019] Figure 4 It is a schematic diagram of the explosion structure of the positioning cover plate of the utility model.

[0020] Figure 5 It is a schematic diagram of the three-dimensional structure of the cover plate main body of the utility model.

[0021] Figure 6 It is a schematic diagram of the three-dimensional structure of the guide member of the utility model.

[0022] Figure 7 It is a schematic diagram of the three-dimensional structure of the transmission plate of the utility model.

[0023] Figure 1-7 In: 1. Base; 2. Negative electrode protection sheet; 3. Connecting sheet; 4. Opening mechanism; 5. Positioning cover; 501. Cover body; 5011. Limiting groove; 5012. Placement through hole; 5013. Mounting groove; 502. Card slot; 503. Transmission plate; 5031. Clamping plate; 5032. Arc plate; 504. Connecting spring; 505. Guide; 5051. Sliding groove; 5052. Spring mounting hole; 506. Cover handle; 6. Protection sheet placement mechanism; 7. Positive electrode protection sheet; 8. Power battery; 9. Battery fixing mechanism; 10. Pole ear. DETAILED DESCRIPTION

[0024] The following will be combined with the attached embodiment of the present utility model Figure 1-Figure 7 , clearly and completely describe the technical solutions in the embodiments of the utility model.

[0025] See also Figure 1-7 In the embodiment of the utility model, a new type of protective sheet positioning cover for ultrasonic welding of power batteries includes: a base 1, which provides support for the entire device; a battery fixing mechanism 9 is installed at the top of the base 1 to limit the displacement of the power battery 8; a positioning cover 5 is installed at the center of the top of the base 1 to position the protective sheet; a protective sheet placement mechanism 6 is installed at the top of the positioning cover 5, and a suction cup is installed on the protective sheet placement mechanism 6 to absorb the protective sheet for placing the protective sheet; an opening mechanism 4 is installed at the right end of the protective sheet placement mechanism 6, and a wedge block is installed at the bottom of the opening mechanism 4 to open the card slot 502 when the wedge block moves downward; a negative electrode protective sheet 2 and a positive electrode protective sheet 7 are installed in the center of the positioning cover 1 to ensure that the welding head can enter smoothly and take into account the function of positioning the protective sheet. In addition, a power battery 8 is placed in the center of the battery fixing mechanism 9 as a device that needs to be welded; a pole ear 10 is connected to the output end of the power battery 8 for welding with a connecting sheet 3; a connecting sheet 3 is installed at the top of the pole ear 10 for welding the left and right batteries through the pole ear 10.

[0026] In the embodiment of the utility model, the positioning cover 5 includes: a cover body 501, a slot 502, a transmission plate 503, a guide member 505 and a cover handle 506. The cover body 501 is installed in the center of the base 1, and the guide member 505 is installed on the right side of the top of the cover body 501. The top of the cover body 501 is connected to the cover handle 506. The transmission plate 503 is installed in the center of the cover body 501, and the slot 502 is connected to the right end of the transmission plate 503. Through the cover body 501, the effect of supporting the device is achieved; through the guide member 505, the effect of guiding the transmission plate 503 is achieved; through the cover handle 506, the effect of facilitating the picking up of the positioning cover 5 is achieved; through the transmission plate 503, the effect of driving the slot 502 to move is achieved; through the slot 502, the effect of clamping the protective sheet is achieved.

[0027] In the embodiment of the utility model, a placement through hole 5012 is respectively opened on the front and rear sides of the center of the cover body 501, and an installation groove 5013 is opened in the center of the front and rear ends of the placement through hole 5012. A transmission plate 503 is installed in the center of the installation groove 5013. There are four groups of card slots 502 and transmission plates 503. The four groups of card slots 502 and transmission plates 503 are respectively installed in four limit slots 5011. By placing the through hole 5012, the effect of placing the protective sheet, the pole ear 10 and the connecting sheet 3 is achieved. By using the four groups of card slots 502 and the transmission plate 503, the effect of clamping the protective sheet under the elastic force of the spring is achieved.

[0028] In the embodiment of the utility model, the front end of the right end of the transmission plate 503 is connected to a clamping plate 5031, and the top of the clamping plate 5031 is connected to an arc plate 5032. The arc plate 5032 is used to facilitate the clamping plate 5031 to be opened when the opening mechanism 4 moves downward; the clamping plate 5031 and the opening mechanism 4 are used to loosen the card slot 502 or clamp the protective sheet. When the wedge block of the opening mechanism 4 moves downward into the center of the clamping plate 5031, the clamping plate 5031 is moved to both sides. When the opening mechanism 4 moves upward, the wedge block of the opening mechanism 4 moves out of the clamping plate 5031, and the clamping plate 5031 moves toward the center under the elastic force of the spring, driving the transmission plate 503 to move toward the center, thereby driving the clamping slot 502 to move toward the center, thereby automatically closing the clamping slot 502 and clamping the central protective sheet.

[0029] In the embodiment of the utility model, a plurality of spring mounting holes 5052 are opened in the center of the right end of the guide member 505, a connecting spring 504 is installed in the center of the spring mounting hole 5052, and a clamping plate 5031 is connected to the outer end of the connecting spring 504. Through the spring, when the opening mechanism 4 leaves the center of the clamping plate 5031, the spring pushes the clamping plate 5031 to move toward the center.

[0030] In the embodiment of the utility model, a plurality of sliding grooves 5051 are opened at the left end of the guide member 505, and a transmission plate 503 is installed in the sliding groove 5051, so as to further limit the displacement of the transmission plate 503, so that the transmission plate 503 can only be displaced along the sliding groove 5051.

[0031] In the embodiment of the utility model, a V-shaped clamping groove is provided at the front end of the clamping groove 502 to facilitate clamping of the protection sheet.

[0032] Working principle: When in use, first place the battery in the center of the battery fixing mechanism 9, then fix the power battery 8 through the battery fixing mechanism 9, and at the same time place the pole ear 10 in the placement through hole 5012, then place the connecting sheet 3 on the top of the pole ear 10, and then start the protective sheet placement mechanism 6 to move the protective sheet placement mechanism 6 downward, and place the protective sheet in the center of the card slot 502. At the same time, the protective sheet placement mechanism 6 drives the opening mechanism 4 to move downward. When the wedge block of the opening mechanism 4 moves downward into the center of the clamping plate 5031, the clamping plate 5031 moves to both sides, driving the transmission plate 503 to move left and right, thereby driving the card slot 502 to move to both sides, thereby automatically opening the card slot 502, so that the protective sheet can be placed in the center of the card slot 502, then the protective sheet placement mechanism 6 moves upward, and at the same time, the protective sheet placement mechanism 6 drives the opening mechanism 4 to move upward. When the opening mechanism 4 moves upward, the wedge block of the opening mechanism 4 moves out of the clamping plate 5031, and the clamping plate 5031 is elastically When the locking plate 502 is in the closed position, the locking plate 503 is in the closed position, and the locking plate 503 is in the closed position, so that ...

Claims

1. A new protective sheet positioning cover for ultrasonic welding of power batteries, comprising: The base (1) is characterized in that: a battery fixing mechanism (9) is installed at the top of the base (1), a positioning cover (5) is installed at the center of the top of the base (1), a protection sheet placement mechanism (6) is installed at the top of the positioning cover (5), an opening mechanism (4) is installed at the right end of the protection sheet placement mechanism (6), and a negative electrode protection sheet (2) and a positive electrode protection sheet (7) are installed at the center of the positioning cover (5).

2. According to claim 1, a new type of protective sheet positioning cover for ultrasonic welding of power batteries is characterized in that: The positioning cover plate (5) comprises: a cover plate body (501), a slot (502), a transmission plate (503), a guide member (505) and a cover plate handle (506); the cover plate body (501) is installed in the center of the base (1); the guide member (505) is installed on the right side of the top of the cover plate body (501); the top of the cover plate body (501) is connected to the cover plate handle (506); the transmission plate (503) is installed in the center of the cover plate body (501); and the slot (502) is connected to the right end of the transmission plate (503).

3. The novel protective sheet positioning cover plate for ultrasonic welding of power batteries according to claim 2 is characterized in that: A placement through hole (5012) is respectively provided at the front and rear sides of the center of the cover plate body (501), a mounting groove (5013) is provided at the front and rear ends of the placement through hole (5012), a transmission plate (503) is installed at the center of the mounting groove (5013), there are four groups of the clamping groove (502) and the transmission plate (503), and the four groups of the clamping groove (502) and the transmission plate (503) are respectively installed in the four limiting grooves (5011).

4. The novel protective sheet positioning cover plate for ultrasonic welding of power batteries according to claim 2 is characterized in that: The front end of the right end of the transmission plate (503) is connected to a clamping plate (5031), and the top end of the clamping plate (5031) is connected to an arc-shaped plate (5032).

5. The novel protective sheet positioning cover plate for ultrasonic welding of power batteries according to claim 4 is characterized in that: A plurality of spring installation holes (5052) are provided in the center of the right end of the guide member (505), a connecting spring (504) is installed in the center of the spring installation hole (5052), and a clamping plate (5031) is connected to the outer end of the connecting spring (504).

6. The novel protective sheet positioning cover plate for ultrasonic welding of power batteries according to claim 2 is characterized in that: A plurality of sliding grooves (5051) are provided at the left end of the guide member (505), and a transmission plate (503) is installed in the sliding groove (5051).

7. The novel protective sheet positioning cover plate for ultrasonic welding of power batteries according to claim 2 is characterized in that: A V-shaped clamping groove is formed at the front end of the clamping groove (502).

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