Pressing tool

Abstract

The utility model relates to a hold-down fixture, which is applied to battery piece series connection equipment and comprises a frame, a first pressing part and a second pressing part, the first pressing part is installed below the frame, and the second pressing part is located on one side of the first pressing part. The first pressing part comprises a pressing end face used for pressing a to-be-pressed material. The second pressing part comprises a pressing plate and a rotating mechanism, the rotating mechanism is rotatably mounted on the frame, the pressing plate is mounted on the rotating mechanism, and the rotating mechanism is at least used for driving the pressing plate to rotate, so that the bottom surface of the pressing plate rotates from the position higher than the pressing end surface of the first pressing part to the position flush with the pressing end surface of the first pressing part. When the device is used for battery piece series connection equipment, the rotating mechanism is operated to enable the bottom face of the pressing plate to be in an inclined state so as to avoid the clamping end of a welding strip; the bottom surface of the pressing plate is in a horizontal state by operating the rotating mechanism, and the end part of the welding strip is pressed by the pressing plate, so that the end part of the welding strip can be adhered to a battery piece, the pressing and adhering effect of the pressing tool is enhanced, and the quality of a battery string is ensured.

Description

Technical Field

[0001] This application relates to the field of solar photovoltaic cell production, specifically to a type of press. Background Technology

[0002] A battery string consists of battery cells and solder strips, with the solder strips used to connect two adjacent battery cells.

[0003] During battery string production, a pressure tool is used to press the solder ribbon onto the battery cells to prevent it from shifting. The solder ribbon is held and pulled onto the cells by a traction mechanism. Because the clamps holding the solder ribbon require space, traditional pressure tools can only press onto the unclamped portion of the ribbon. When the clamps release the ribbon, the end may curl up, and this curled end cannot be secured to the battery cells, making it difficult to guarantee the quality of the battery string. Summary of the Invention

[0004] This application addresses the problem that existing pressing tools fail to press the raised ends of the solder strips, resulting in poor pressing effect, and provides a pressing tool with better pressing effect.

[0005] The technical solution of this application is as follows: A clamping fixture, applied in a battery cell stringing device, includes a frame, a first clamping part, and a second clamping part; wherein:

[0006] The first clamping part is installed below the frame, and the second clamping part is located on one side of the first clamping part;

[0007] The first clamping part includes a clamping end face for clamping the material to be clamped;

[0008] The second pressing part includes a pressure plate and a rotating mechanism. The rotating mechanism is rotatably mounted on the frame, and the pressure plate is mounted on the rotating mechanism. The rotating mechanism is at least used to drive the pressure plate to rotate, so that the bottom surface of the pressure plate rotates from being higher than the pressing end surface of the first pressing part to being flush with the pressing end surface of the first pressing part.

[0009] When the clamping fixture in this application is used in a battery cell stringing device, the rotating mechanism is first operated to raise the bottom surface of the pressure plate of the second clamping part and place it in an inclined state. At this time, the first clamping part presses against the unclamped portion of the solder strip, and the pressure plate is located above the clamped portion of the solder strip, avoiding the clamping end of the solder strip. Then, the clamping chuck of the solder strip is removed, and the rotating mechanism is operated again to lower the bottom surface of the pressure plate to a horizontal state, so that the pressure plate presses the end of the solder strip tightly, thereby ensuring that the end of the solder strip can be pasted onto the battery cell, enhancing the pressing effect of the clamping fixture and ensuring the quality of the battery string.

[0010] Optionally, the rotating mechanism includes a mounting base, a pressing element, and a spring;

[0011] The mounting base is mounted on the frame, and the pressing component is rotatably mounted on the frame via a pivot. The pressing component is located below the mounting base, and the pressure plate is connected to one side of the pressing component. The two ends of the spring are respectively installed between the pressure plate and the mounting base.

[0012] When the pressing element is pressed down, the bottom surface of the pressure plate is tilted upward; after the pressing element is released, the spring keeps the bottom surface of the pressure plate horizontal.

[0013] The pressure plate flips by pressing the pressing part, and returns to its original position by a spring. The structure is simple and the operation is flexible.

[0014] Optionally, the mounting base is provided with a downwardly protruding first limiting part near the pressing end of the pressing member, and the pressure plate is provided with an upwardly protruding second limiting part corresponding to the position of the mounting base. The first limiting part and the second limiting part are respectively located on both sides of the rotating shaft.

[0015] The first limiting part contacts the pressing member when the pressing member is in its natural state, so that the bottom surface of the pressure plate is in a horizontal state; the second limiting part contacts the side of the mounting base when the pressing member is in the pressing state, so as to limit the rotation angle of the pressure plate.

[0016] When the pressing part is in its natural state, the first limiting part restricts the rotation of the pressure plate to prevent the pressure plate from rotating too much; when the pressing part is pressed to make the pressure plate rotate, the second limiting part stops the rotation of the pressure plate to prevent the pressure plate from damaging the spring due to excessive rotation.

[0017] Optionally, there are two sets of rotating mechanisms, located at both ends of the pressure plate.

[0018] By setting two sets of rotating mechanisms to rotate the pressure plate, it can be ensured that the pressure plate can rotate smoothly, and the uneven load that occurs when only one set of rotating mechanisms is in operation can be avoided.

[0019] Optionally, the first pressing part includes a plurality of pressing strips arranged sequentially along a first horizontal direction, each pressing strip extending along a second horizontal direction, and the bottom surfaces of the plurality of pressing strips together forming the pressing end face of the first pressing part, wherein the second horizontal direction is perpendicular to the first horizontal direction.

[0020] The first pressing part uses a pressure strip, which can press the welding strip from both sides, so that the welding strip can better adhere to the battery cell; since the pressure strip is set along the length of the welding strip, a uniform pressing force can be applied to both sides of the welding strip.

[0021] Optionally, the first clamping part may also include several mounting brackets and elastic components;

[0022] The mounting brackets extend along the second horizontal direction, with each mounting bracket corresponding to a pressure strip. Each mounting bracket is connected to the frame via an elastic component.

[0023] Each pressure strip is installed at the bottom of its corresponding mounting bracket.

[0024] The mounting bracket is connected to the frame via elastic components, allowing the pressure strip mounted on the mounting bracket to float on the frame. This ensures a tight fit when the pressure strip presses against the welding strip, resulting in a better pressing effect.

[0025] Optionally, the frame is provided with a perforated hole, and each mounting bracket is provided with a clearance opening extending along the second horizontal direction. The portion of the clearance opening overlapping with the perforated hole passes through the press in the vertical direction.

[0026] The perforated holes in the frame allow the adsorption components to pass through and adsorb the material below the press; the openings and perforations allow light to pass through, thus better heating the material below the press.

[0027] Optionally, the elastic component includes a guide post, a limiting member, and an elastic member. The top end of the guide post extends upward through the frame. The limiting member is installed at the top end of the guide post and prevents the guide post from detaching from the frame. The bottom end of the guide post is fixed on the mounting bracket. The elastic member is sleeved on the guide post. The first end of the elastic member abuts against the frame, and the second end of the elastic member abuts against the mounting bracket. The elastic member moves the mounting bracket away from the frame.

[0028] The elastic component adopts a combination of guide posts, limiting parts and elastic parts. The structure is simple and can easily realize the up and down floating of the mounting frame, so that the pressure strip installed on the mounting frame can better press the welding strip onto the battery cell.

[0029] Optionally, the first pressing part includes a plurality of pressing needle groups arranged sequentially along the first horizontal direction. Each pressing needle group includes a plurality of pressing needles arranged sequentially along the second horizontal direction. Each pressing needle is elastically mounted on the frame in the vertical direction. The bottom ends of each pressing needle together form the pressing end face of the first pressing part. The second horizontal direction is perpendicular to the first horizontal direction.

[0030] The first pressing part adopts a pressing needle assembly. The pressing needles in the pressing needle assembly have a small contact area with the material being pressed, which allows them to fit more tightly with the material being pressed.

[0031] Optionally, the pressure strip is made of a flexible material, and a flexible layer is provided at the bottom of the pressure plate.

[0032] Both the flexible material and the flexible layer can deform, allowing the pressure strip and the pressure plate to better fit the material being pressed. Attached Figure Description

[0033] Figure 1 This is a three-dimensional structural diagram of an optional embodiment of this application;

[0034] Figure 2 for Figure 1 The main view;

[0035] Figure 3 for Figure 2Top view;

[0036] Figure 4 for Figure 2 A bottom view;

[0037] Figure 5 for Figure 2 AA section view in the middle;

[0038] Figure 6 for Figure 2 BB section view in the middle;

[0039] Figure 7 for Figure 1 The diagram shows the usage status of the press.

[0040] Figure 8 for Figure 7 The main view.

[0041] Figures 1 to 8 Including:

[0042] Press 1;

[0043] Frame 10, cutout holes 11;

[0044] First pressing part 20, pressing strip 21, mounting bracket 22, clearance opening 221, elastic component 23, guide post 231, limiting component 232, elastic component 233;

[0045] Second pressing part 30, pressure plate 31, flexible layer 311, second limiting part 312, rotating mechanism 32, mounting base 321, pressing part 322, spring 323, rotating shaft 324, first limiting part 325;

[0046] First horizontal direction 101, second horizontal direction 102, welding strip 103, battery cell 104, encapsulant film 105;

[0047] Gripper 200. Detailed Implementation

[0048] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, this application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0049] A conventional battery string consists of battery cells and solder ribbons, with the solder ribbons used to connect two adjacent battery cells. Another type of battery string has an adhesive film, which consists of battery cells, solder ribbons, and an adhesive film. The adhesive film is attached to the outside of the solder ribbons, covering and bonding the solder ribbons to the surface of the battery cells.

[0050] like Figures 1-6As shown, this application discloses a press 1, which is used in a battery cell stringing device to produce battery strings. This press 1 can be used for the production of conventional battery strings, as well as for the production of battery strings with adhesive film.

[0051] The press 1 includes a frame 10, a first pressing part 20, and a second pressing part 30; wherein:

[0052] The first clamping part 20 is installed below the frame 10, and the second clamping part 30 is located on one side of the first clamping part 20;

[0053] The first pressing part 20 includes a pressing end face for pressing the material to be pressed;

[0054] The second pressing part 30 includes a pressure plate 31 and a rotating mechanism 32. The rotating mechanism 32 is rotatably mounted on the frame 10, and the pressure plate 31 is mounted on the rotating mechanism 32. The rotating mechanism 32 is at least used to drive the pressure plate 31 to rotate, so that the bottom surface of the pressure plate 31 rotates from being higher than the pressing end surface of the first pressing part 20 to being flush with the pressing end surface of the first pressing part 20.

[0055] When the pressure fixture 1 in this application is used in the production of conventional battery strings in a battery cell stringing equipment, the rotation mechanism 32 of the second pressing part 30 is first operated to raise the bottom surface of the pressure plate 31 of the second pressing part 30 and place it in an inclined state. At this time, the first pressing part 20 presses against the unclamped portion of the welding strip 103, and the pressure plate 31 is located above the clamped portion of the welding strip 103, avoiding the clamping end of the welding strip 103. Then, the clamping chuck of the welding strip 103 is removed, and the rotation mechanism 32 is operated again to lower the bottom surface of the pressure plate 31 to a horizontal state, so that the pressure plate 31 presses the end of the welding strip 103 tightly, thereby ensuring that the end of the welding strip 103 can be pasted onto the battery cell 104, enhancing the pressing effect of the pressure fixture 1 and ensuring the quality of the battery string.

[0056] When the press 1 in this application is used in the production of battery strings with adhesive film in the battery cell stringing equipment, the rotation mechanism 32 of the second pressing part 30 is first operated to raise the bottom surface of the pressure plate 31 of the second pressing part 30 and put it in an inclined state. At this time, the first pressing part 20 presses against the adhesive film corresponding to the unclamped part of the solder ribbon 103, and the pressure plate 31 is located above the clamped part of the solder ribbon 103, avoiding the clamping end of the solder ribbon 103. Then, the clamping chuck of the solder ribbon 103 is removed, and the rotation mechanism 32 is operated again to lower the bottom surface of the pressure plate 31 to a horizontal state, so that the pressure plate 31 presses the end of the adhesive film and the end of the solder ribbon 103 together, thereby ensuring that the adhesive film can stick the end of the solder ribbon 103 to the battery cell 104, enhancing the pressing effect of the press 1 and ensuring the quality of the battery string.

[0057] As an optional implementation method, such as Figure 5 , Figure 6As shown, the rotating mechanism 32 includes a mounting base 321, a pressing member 322, and a spring 323.

[0058] Mounting base 321 is mounted on frame 10. Pressing member 322 is rotatably mounted on frame 10 via rotating shaft 324. Pressing member 322 is located below mounting base 321. Pressure plate 31 is connected to one side of pressing member 322. The two ends of spring 323 are respectively installed between pressure plate 31 and mounting base 321.

[0059] When the pressing member 322 is pressed down, the bottom surface of the pressure plate 31 is tilted upward; after the pressing member 322 is released, the spring 323 makes the bottom surface of the pressure plate 31 horizontal.

[0060] Pressing the pressing element 322 causes the pressure plate 31 to flip, and the spring 323 resets the pressure plate 31. The structure is simple and the operation is flexible.

[0061] In this embodiment, optionally, the mounting base 321 is provided with a downwardly protruding first limiting part 325 near the pressing end of the pressing member 322, and the pressure plate 31 is provided with an upwardly protruding second limiting part 312 corresponding to the position of the mounting base 321. The first limiting part 325 and the second limiting part 312 are respectively located on both sides of the rotating shaft 324.

[0062] The first limiting part 325 contacts the pressing member 322 when the pressing member 322 is in its natural state, so that the bottom surface of the pressure plate 31 is in a horizontal state; the second limiting part 312 contacts the side of the mounting base 321 when the pressing member 322 is in the pressing state, so as to limit the rotation angle of the pressure plate 31.

[0063] When the pressing member 322 is in its natural state, the first limiting part 325 restricts the rotation of the pressure plate 31 to prevent the pressure plate 31 from rotating too much. When the pressing member 322 is pressed to make the pressure plate 31 rotate, the second limiting part 232 stops the pressure plate 31 from rotating to prevent the pressure plate 31 from damaging the spring 323 due to excessive rotation.

[0064] In one embodiment, optionally, there are two sets of rotating mechanisms 32, located at both ends of the pressure plate 31.

[0065] By setting two sets of rotating mechanisms 32 to rotate the pressure plate 31, it can be ensured that the pressure plate 31 can rotate smoothly, and the off-center load when only one set of rotating mechanisms 32 is in operation can be avoided.

[0066] See also Figures 1-6 Optionally, the first pressing part 20 includes a plurality of pressing strips 21 arranged sequentially along the first horizontal direction 101, each pressing strip 21 extending along the second horizontal direction 102, and the bottom surfaces of the plurality of pressing strips 21 together forming the pressing end face of the first pressing part 20, the second horizontal direction 102 being perpendicular to the first horizontal direction 101.

[0067] The first pressing part 20 adopts a pressing strip 21, which can press the welding strip 103 from both sides, so that the welding strip 103 can better adhere to the battery cell 104; since the pressing strip 21 is set along the length direction of the welding strip 103, a uniform pressing force can be applied to both sides of the welding strip 103.

[0068] Optionally, the first clamping part 20 may also include a plurality of mounting brackets 22 and elastic components 23.

[0069] Mounting bracket 22 extends along the second horizontal direction 102, and each mounting bracket 22 corresponds to a pressure strip 21. Each mounting bracket 22 is connected to the frame 10 by an elastic component 23.

[0070] Each pressure strip 21 is installed at the bottom of the corresponding mounting bracket 22.

[0071] The mounting bracket 22 is connected to the frame 10 via the elastic component 23, so that the pressure strip 21 mounted on the mounting bracket 22 is floatingly mounted on the frame 10. When the pressure strip 21 presses the welding strip 103, it can be tightly attached to achieve a better pressing effect.

[0072] Optionally, the frame 10 is provided with a hollow hole 11, and each mounting bracket 22 is provided with a clearance opening 221 extending along the second horizontal direction 102. The portion of the clearance opening 221 overlapping with the hollow hole 11 passes through the presser 1 in the vertical direction.

[0073] The perforated hole 11 on the frame 10 allows the adsorption element to pass through and adsorb the material below the press 1; the avoidance opening 221 and the perforated hole 11 allow light to pass through, thereby better heating the material below the press 1.

[0074] In one embodiment, such as Figure 5 , Figure 6 As shown, the elastic component 23 includes a guide post 231, a limiting member 232, and an elastic member 233. The top end of the guide post 231 extends upward through the frame 10. The limiting member 232 is installed on the top end of the guide post 231 and prevents the guide post 231 from detaching from the frame 10. The bottom end of the guide post 231 is fixed on the mounting bracket 22. The elastic member 233 is sleeved on the guide post 231. The first end of the elastic member 233 abuts against the frame 10, and the second end of the elastic member 233 abuts against the mounting bracket 22. The elastic member 233 keeps the mounting bracket 22 away from the frame 10.

[0075] The elastic component 23 is a combination of guide post 231, limiting member 232 and elastic member 233. It has a simple structure and can easily realize the up and down floating of the mounting frame 22, so that the pressure strip 21 installed on the mounting frame 22 can better press the welding strip 103 onto the battery cell 104.

[0076] As another optional implementation, the first pressing part 20 includes a plurality of pressing needle groups arranged sequentially along the first horizontal direction 101. Each pressing needle group includes a plurality of pressing needles arranged sequentially along the second horizontal direction 102. Each pressing needle is elastically mounted on the frame 10 in the vertical direction. The bottom ends of each pressing needle together form the pressing end face of the first pressing part 20. The second horizontal direction 102 is perpendicular to the first horizontal direction 101.

[0077] The first pressing part 20 adopts a pressing needle assembly. The pressing needles in the pressing needle assembly have a small contact area with the material being pressed, which allows them to fit more tightly with the material being pressed.

[0078] In one embodiment, optionally, the material of the pressure strip 21 is a flexible material, and a flexible layer 311 is provided at the bottom of the pressure plate 31.

[0079] Both the flexible material and the flexible layer 311 can deform, allowing the pressure strip 21 and the pressure plate 31 to better fit the material being pressed.

[0080] like Figure 7 , Figure 8 As shown in the figure, as an embodiment, the working process of this application in producing battery strings with adhesive film is as follows: Before placing the press 1 and the front adhesive film 105, the traction gripper 200 has already clamped the welding strip 103. The transport device moves the press 1 and the front adhesive film 105 onto the welding strip 103. At this time, the pressure bar 21 of the first pressing part 20, which is in a low position, first presses the adhesive film 105 onto the battery cell 104. The pressure plate 31 of the second pressing part 30 is located above the clamping end of the traction gripper 200, and the edge of the front adhesive film 105 rests on the supporting surface of the traction gripper 200. Then, the transport device releases the press 1. Due to the loss of the pressing of the transport device, the pressing member 322 of the rotating mechanism 32 rotates the pressure plate 31 downward, pressing the edge of the front adhesive film 105 against the supporting surface of the traction gripper 200. After the traction gripper 200 releases the welding strip 103 and withdraws horizontally, the pressure plate 31 presses the ends of the adhesive film 105 and the welding strip 103 onto the battery cell 104.

[0081] The foregoing has provided a sufficiently detailed and specific description of this application. Those skilled in the art should understand that the descriptions in the embodiments are merely exemplary, and all changes made without departing from the true spirit and scope of this application should fall within the protection scope of this application. The scope of protection claimed in this application is defined by the claims, and not by the above descriptions in the embodiments.

Claims

1. A press, characterized in that, The clamping tool is used in a battery cell stringing device. The clamping tool includes a frame, a first clamping part, and a second clamping part; wherein: The first clamping part is installed below the frame, and the second clamping part is located on one side of the first clamping part; The first pressing part includes a pressing end face for pressing the material to be pressed; The second pressing part includes a pressure plate and a rotating mechanism. The rotating mechanism is rotatably mounted on the frame, and the pressure plate is mounted on the rotating mechanism. The rotating mechanism is at least used to drive the pressure plate to rotate, so that the bottom surface of the pressure plate rotates from being higher than the pressing end surface of the first pressing part to being flush with the pressing end surface of the first pressing part.

2. The press according to claim 1, characterized in that, The rotating mechanism includes a mounting base, a pressing component, and a spring; The mounting base is mounted on the frame, the pressing member is rotatably mounted on the frame via a pivot, the pressing member is located below the mounting base, the pressure plate is connected to one side of the pressing member, and the two ends of the spring are respectively abutted between the pressure plate and the mounting base; When the pressing member is pressed down, the bottom surface of the pressure plate is tilted upward; after the pressing member is released, the spring keeps the bottom surface of the pressure plate horizontal.

3. The press according to claim 2, characterized in that, The mounting base is provided with a downwardly protruding first limiting part near the pressing end of the pressing member, and the pressure plate is provided with an upwardly protruding second limiting part corresponding to the position of the mounting base. The first limiting part and the second limiting part are respectively located on both sides of the rotating shaft. The first limiting part contacts the pressing member when the pressing member is in its natural state, so that the bottom surface of the pressure plate is in a horizontal state; the second limiting part contacts the side of the mounting base when the pressing member is in a pressed state, so as to limit the rotation angle of the pressure plate.

4. The press according to claim 3, characterized in that, There are two sets of rotating mechanisms, located at both ends of the pressure plate.

5. The press according to claim 1, characterized in that, The first pressing part includes a plurality of pressing strips arranged sequentially along a first horizontal direction, each pressing strip extending along a second horizontal direction, and the bottom surfaces of the plurality of pressing strips together forming the pressing end face of the first pressing part, wherein the second horizontal direction is perpendicular to the first horizontal direction.

6. The press according to claim 5, characterized in that, The first clamping part also includes several mounting brackets and elastic components; The mounting bracket extends along the second horizontal direction, and each mounting bracket corresponds to a pressure strip. Each mounting bracket is connected to the frame via the elastic component. Each of the pressure strips is installed at the bottom of the corresponding mounting bracket.

7. The press according to claim 6, characterized in that, The frame has a perforated hole, and each mounting bracket has a clearance opening extending along the second horizontal direction. The portion of the clearance opening that overlaps with the perforated hole passes through the presser in the vertical direction.

8. The press according to claim 6, characterized in that, The elastic component includes a guide post, a limiting member, and an elastic element. The top end of the guide post extends upward through the frame. The limiting member is installed at the top end of the guide post and prevents the guide post from detaching from the frame. The bottom end of the guide post is fixed on the mounting bracket. The elastic element is sleeved on the guide post. The first end of the elastic element abuts against the frame, and the second end of the elastic element abuts against the mounting bracket. The elastic element causes the mounting bracket to move away from the frame.

9. The press according to claim 1, characterized in that, The first pressing part includes a plurality of pressing needle groups arranged sequentially along a first horizontal direction. Each pressing needle group includes a plurality of pressing needles arranged sequentially along a second horizontal direction. Each pressing needle is elastically mounted on the frame in a vertical direction. The bottom ends of each pressing needle together form the pressing end face of the first pressing part. The second horizontal direction is perpendicular to the first horizontal direction.

10. The press according to claim 5, characterized in that, The pressure strip is made of a flexible material, and a flexible layer is provided at the bottom of the pressure plate.

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