Battery assembly device

Abstract

An embodiment of the present invention discloses a battery assembly device, which includes a mounting seat, a limiting shell arranged on the mounting seat, and a lifting mechanism, wherein the limiting shell is formed with a accommodating groove, the accommodating groove is used to accommodate at least part of the battery, the lifting mechanism includes a driver and a connecting part, the connecting part is connected to the limiting shell, and the driver is used to drive the connecting part to rise and fall. The embodiment of the present invention enables the limiting shell to form an accommodating limit for the battery, the battery is not easy to be displaced during the assembly process, the assembly process is more stable, and the limiting shell can be lifted and lowered relative to the mounting seat to cooperate with the limiting shell to realize the press-fit assembly of the battery cell and / or the press-fit assembly of the top cover and the bottom shell, so as to avoid the battery cell and avoid the problem of being unable to assemble or being damaged due to interference between the battery cell and the limiting shell, and can also reduce or avoid damage caused by excessive interference between the bottom shell and the limiting shell during the press-fitting process with the top cover.

Description

Technical Field

[0001] This invention relates to the field of battery manufacturing technology, and in particular to a battery assembly device. Background Technology

[0002] Various electronic devices generally require batteries for power, and the quality of the batteries directly affects the operation and lifespan of the electronic devices. A square battery mainly consists of a cell, a top cover, and a bottom casing. Typically, the top cover is placed on the mounting base first, then the cell is placed on the top cover, and finally the bottom casing is fitted on top to complete the assembly.

[0003] Currently, robotic arms are generally used for battery cell assembly. However, robotic arms have complex structures and low assembly precision, which can easily lead to non-compliant battery assembly and affect the battery yield. Summary of the Invention

[0004] This invention provides a battery assembly device to solve the technical problems of high difficulty in battery assembly and complex structure of assembly devices in the prior art.

[0005] To solve the above-mentioned technical problems, one technical solution adopted by the present invention is to provide a battery assembly device, comprising:

[0006] Mounting base;

[0007] A limiting housing is disposed on the mounting base, and the limiting housing has a receiving groove for accommodating at least a portion of the battery;

[0008] A lifting mechanism includes a driver and a connecting part, the connecting part being connected to the limiting housing, and the driver being used to drive the connecting part to lift.

[0009] In one specific embodiment, the receiving groove includes a first groove segment and a second groove segment, the axes of the first groove segment and the second groove segment are arranged to coincide, and the width of the first groove segment is smaller than the width of the second groove segment, so that the bottom surface of the second groove segment forms a first bearing surface. The first groove segment is used to receive the top cover of the battery, and the first bearing surface is used to support the bottom shell of the battery.

[0010] In one specific embodiment, the width of the first groove segment along the first direction is greater than or equal to the width of the top cover along the first direction, and the width of the first groove segment along the first direction is less than the width of the bottom shell along the first direction.

[0011] In one specific embodiment, the difference between the width of the second groove segment along the first direction and the width of the battery cell along the first direction is greater than or equal to the thickness of the bottom shell along the first direction.

[0012] In one specific embodiment, the receiving groove further includes a third groove segment, which is disposed on the side of the first groove segment away from the second groove segment. The mounting base is provided with a protrusion, and the third groove segment is used to receive at least a portion of the protrusion. The top cover is supported on the protrusion.

[0013] In one specific embodiment, a first limiting part is provided on the protrusion, the first limiting part being used to cooperate with a second limiting part on the top cover to limit the top cover to the protrusion.

[0014] In one specific embodiment, the connecting part of the lifting mechanism includes a lifting rod, the driver is connected to the lifting rod, and the lifting rod is connected to the limiting housing.

[0015] In one specific embodiment, the lifting mechanism further includes a rotating disk, which is driven and connected to the driver, and the lifting rod is connected to or abuts against the rotating disk, so that the rotating disk can drive the lifting rod to move.

[0016] In one specific embodiment, a receiving opening is formed on the rotating disk, and the lifting rod includes a main rod body and an extension portion disposed on the main rod body. At least a portion of the extension portion is received in the receiving opening. The length of the receiving opening along the lifting direction of the limiting housing is greater than the length of the portion of the extension portion received in the receiving opening along the lifting direction of the limiting housing. The width of the receiving opening in the vertical direction along the lifting direction of the limiting housing is greater than the width of the portion of the extension portion received in the receiving opening in the vertical direction along the lifting direction of the limiting housing.

[0017] In one specific embodiment, the lifting mechanism further includes a transmission wheel connected to the driver, a first tooth formed on the outer side wall of the rotating disk, and a second tooth formed on the outer side wall of the transmission wheel, wherein the first tooth meshes with the second tooth.

[0018] Implementing the embodiments of the present invention will have the following beneficial effects:

[0019] After adopting the above-mentioned battery assembly device, the limiting shell can accommodate and limit the battery, making the battery less prone to displacement during assembly, and the assembly process is more stable. In addition, the limiting shell can be raised and lowered relative to the mounting base to cooperate with the limiting shell to realize the pressing assembly of the battery cell and / or the pressing assembly of the top cover and bottom shell. The limiting shell can be lowered during the pressing assembly of the battery cell to complete the battery assembly. It can also be lowered with the bottom shell during the pressing assembly of the top cover and bottom shell, reducing or avoiding damage caused by excessive interference between the bottom shell and the limiting shell during the pressing with the top cover. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] in:

[0022] Figure 1 This is a perspective view of a portion of the structure of the battery assembly device in one embodiment.

[0023] Figure 2 This is a side view of a portion of the structure of the battery assembly device and the battery cell in one embodiment.

[0024] Figure 3 This is a perspective view of a portion of the battery assembly device and a portion of the battery structure in one embodiment.

[0025] Figure 4 This is a partial structural diagram of the battery assembly device and a side view of the battery in one embodiment.

[0026] Figure 5 for Figure 4 A partially enlarged cross-sectional view of the central section of the structure;

[0027] Figure 6 This is a perspective view of a portion of the battery assembly device in one embodiment.

[0028] Figure 7 This is a front view schematic diagram of a portion of the structure of a battery assembly device in one embodiment. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] See Figure 1 and Figure 2An embodiment of the battery assembly device 10 of the present invention includes a mounting base 100, a limiting housing 200, and a lifting mechanism 300. The battery cell 420 includes two cell units 421, which are pressed together and supported on a top cover 410 on the mounting base 10 by a core-combining mechanism 500 of the assembly device 10. The core-combining mechanism 500 drives the cell units 421 to press together along the arc path shown by the dotted line, and the resulting battery cell 420 is supported on the top cover 410. Since the limiting housing 200 is located on the mounting base 100 and protrudes from it, the cell units 421 may interfere with the limiting housing 200 when moving along the arc path shown by the dotted line to the mounting base 100. Therefore, the lifting mechanism 300 can actively lower the limiting housing 200 to avoid interference with the cell units 421.

[0031] See Figures 1 to 4 In this embodiment, the limiting housing 200 is disposed on the mounting base 100, and the limiting housing 200 forms a receiving groove 210 for accommodating at least a portion of the battery 400. The lifting mechanism 300 includes a driver (not shown in the figure) and a connecting part (not shown in the figure). The connecting part is connected to the limiting housing 200, and the driver is used to drive the connecting part to lift. After adopting the above-described battery assembly device 10, the limiting housing 200 can accommodate and limit the battery 400, making it less likely for the battery 400 to shift during assembly, thus making the assembly process more stable. Furthermore, the limiting housing 200 can be raised and lowered relative to the mounting base 100 to cooperate with the limiting housing 200 to achieve the pressing and assembly of the battery cell 420 and / or the pressing and assembly of the top cover 410 and the bottom cover 430. This allows the limiting housing 200 to descend during the pressing and assembly of the battery cell 420 to complete the assembly of the battery 400. It also allows the limiting housing 200 to descend with the bottom cover 430 during the pressing and assembly of the top cover 410 and the bottom cover 430, reducing or avoiding damage caused by excessive interference between the bottom cover 430 and the limiting housing 200 during the pressing and assembly of the top cover 410.

[0032] Specifically, in this embodiment, the receiving groove 210 is used to receive at least the top cover 410 of the battery 400, at least a portion of the battery cell 420 of the battery 400, and at least a portion of the bottom shell 430 of the battery 400, so that the limiting shell 200 can form a receiving and limiting position on the top cover 410 and the bottom shell 430 of the battery 400, thereby making the alignment of the top cover 410 and the bottom shell 430 more accurate, and the top cover 410 and the bottom shell 430 are less likely to be displaced during the assembly process, making the assembly process more stable.

[0033] See also Figure 5The receiving groove 210 includes a first groove segment 220 and a second groove segment 230. The axes of the first groove segment 220 and the second groove segment 230 are aligned. The first groove segment 220 is closer to the mounting base 100, and the second groove segment 230 is farther away from the mounting base 100. The width D1 of the first groove segment 220 is smaller than the width D2 of the second groove segment 230, so that the bottom surface of the second groove segment 230 forms a first bearing surface 231. The first groove segment 220 is used to receive the top cover 410 of the battery 400, and the first bearing surface 231 is used to support the bottom shell 430 of the battery 400. The first groove segment 220 can receive and limit the top cover 410 of the battery 400, and the second groove segment 230 can receive and limit the bottom shell 430 of the battery 400, so that the alignment of the top cover 410 and the bottom shell 430 is more accurate, and the top cover 410 and the bottom shell 430 are less likely to shift during the assembly process, making the assembly process more stable.

[0034] In this embodiment, the first groove segment 220 is along the first direction ( Figure 5 The width D1 (shown in the left-right direction) is greater than or equal to the width of the top cover 410 along the first direction, so that the top cover 410 can be confined within the first groove section 220, and it is not easy to cause displacement during the entire installation process. The width D1 of the first groove section 220 along the first direction is less than the width of the bottom shell 430 along the first direction, so that the bottom shell 430 can be confined within the space enclosed by the first bearing surface 231, the side wall of the second groove section 230 and the outer side wall of the battery cell 420, which facilitates the alignment of the bottom shell 430 with the top cover 410, and the bottom shell 430 is not easy to tilt, thus achieving the pre-positioning of the bottom shell 430.

[0035] In this embodiment, the difference between the width D2 of the second groove segment 230 along the first direction and the width of the battery cell 420 of the battery 400 along the first direction is greater than or equal to the thickness of the bottom shell 430 along the first direction, so that the bottom shell 430 can be inserted between the sidewalls of the battery cell 420 and the second groove segment 230, thereby achieving the pre-positioning of the bottom shell 430 and the top cover 410.

[0036] In this embodiment, the upper opening of the second slot segment 230 has a trumpet-shaped cross-section, which can guide the bottom shell 430 and facilitate the insertion of the bottom shell 430 between the battery cell 420 and the side wall of the second slot segment 230.

[0037] In this embodiment, the upper opening of the first groove segment 220 has a trumpet-shaped cross-section, which can guide the top cover 410 and facilitate the installation of the top cover 410 into the first groove segment 220.

[0038] Specifically, after placing the top cover 410 and the battery cell 420 on the mounting base 100 in sequence, the bottom shell 430 is fitted onto the battery cell 420 and supported on the first bearing surface 231. At this time, the bottom surface of the bottom shell 430 is above the top cover 410, and the bottom shell 430 is not yet connected to the top cover 410. When the bottom shell 430 is pressed down by force, the limiting shell 200 can passively descend with the bottom shell 430, so that the bottom shell 430 and the top cover 410 are pressed together, and the bottom shell 430 and the top cover 410 are connected.

[0039] In this embodiment, the receiving groove 210 may further include a third groove segment 240, which is disposed on the side of the first groove segment 220 away from the second groove segment 230. The mounting base 100 includes a main body 110 and a protrusion 120 disposed on the main body 110. The third groove segment 240 is used to receive at least a portion of the protrusion 120. The top cover 410 is supported on the protrusion 120, which improves the support force on the top cover 410 and makes the position of the top cover 410 more stable.

[0040] In this embodiment, the width D3 of the third groove segment 240 is smaller than the width D1 of the first groove segment 220, so that the bottom surface of the first groove segment 220 forms a second bearing surface 221. The second bearing surface 221 is used to support the top cover 410, which further improves the support force on the top cover 410 and makes the position of the top cover 410 more stable.

[0041] In this embodiment, a first limiting part 121 is provided on the protrusion 120, and a second limiting part (not shown in the figure) is provided on the top cover 410. The first limiting part 121 and the second limiting part cooperate to limit the top cover 410 on the protrusion 120, which can further make the top cover 410 less prone to displacement during the assembly process and make the position of the top cover 410 more stable.

[0042] In this embodiment, the first limiting part 121 can be a limiting groove, and the second limiting part can be a limiting protrusion.

[0043] In other embodiments, the limiting groove may also be provided on the top cover 410, and the limiting protrusion may be provided on the protrusion 120 accordingly; there is no limitation on this.

[0044] In other embodiments, the first limiting part 121 and the second limiting part may also be mutually cooperating buckles, adhesives, etc., and there is no limitation here.

[0045] In this embodiment, the limiting housing 200 includes a main plate 250 and a side plate 260 connected to the main plate 250. A receiving groove 210 is formed on the main plate 250. The main plate 250 is used to support the top surface of the mounting base 100, and the side plate 260 is used to abut against the side of the mounting base 100, so that the position of the limiting housing 200 on the mounting base 100 is more stable.

[0046] In this embodiment, a first guide portion 270 may be provided on the side plate 260 of the limiting housing 200, and a second guide portion 130 may be provided on the mounting base 100. The first guide portion 270 and the second guide portion 130 cooperate to guide the lifting and lowering of the limiting housing 200, which can make the lifting and lowering process of the limiting housing 200 more stable.

[0047] In this embodiment, the first guide portion 270 can be a guide groove, and the second guide portion 130 can be a guide rod.

[0048] In other embodiments, the guide groove may also be provided on the mounting base 100, and the guide rod may be provided on the limiting housing 200, which is not limited here.

[0049] See also Figure 6 and Figure 7 In this embodiment, the connecting part may include a lifting rod 310, the driver is driven to the lifting rod 310, and the lifting rod 310 is connected to the limiting housing 200 so that the driver can drive the limiting housing 200 to rise and fall through the lifting rod 310. The lifting mechanism 300 has a simple structure, is easy to manufacture, and has high reliability.

[0050] In this embodiment, the driver can be a motor, cylinder, etc.

[0051] In other embodiments, the driver may also be directly connected to the limiting housing 200 to drive the limiting housing 200 to rise and fall, which is not limited here.

[0052] In this embodiment, the lifting mechanism 300 may further include a rotating disk 320, which is connected to a driver. The lifting rod 310 is connected to or abuts against the rotating disk 320, so that the rotating disk 320 can drive the lifting rod to move.

[0053] In this embodiment, a receiving opening 321 is formed on the rotating disk 320, and the lifting rod 310 includes a main rod body 311 and an extension 312 disposed on the main rod body 311. At least a portion of the extension 312 is received in the receiving opening 321, so that when the rotating disk 320 rotates, the side wall of the receiving opening 321 can abut against the extension 312, thereby driving the extension 312 to move.

[0054] In this embodiment, the length of the receiving opening 321 along the lifting direction of the limiting housing 200 is greater than the length of the portion of the extension 312 received in the receiving opening 321 along the lifting direction of the limiting housing 200, and the width of the receiving opening 321 in the vertical direction along the lifting direction of the limiting housing 200 is greater than the width of the portion of the extension 312 received in the receiving opening 321 in the vertical direction along the lifting direction of the limiting housing 200. That is, the portion of the extension 312 received in the receiving opening 321 can be movably disposed in the receiving opening 321 so that the bottom shell 430 and the top cover 410 are pressed together and assembled. When the limiting housing 200 is passively lowered with the bottom shell 430, the extension 312 can move within the receiving opening 321 and will not be blocked by the rotating disk 320.

[0055] In this embodiment, the receiving port 321 is open, which allows the extension 312 to move more flexibly within the receiving port 321 and is less likely to interfere with the side wall of the receiving port 321 during movement, thus preventing damage.

[0056] In this embodiment, a roller 313 may also be provided on the extension 312. The roller 313 is used to abut against the side wall of the receiving port 321, which can reduce the wear generated when the lifting rod 310 abuts against the rotating disk 320, and help extend the service life of the lifting mechanism 300.

[0057] In this embodiment, the rotating shaft of the roller 313 can be integrally formed with the extension 312, which makes the overall structure of the lifting mechanism 300 simpler.

[0058] In other embodiments, the roller 313 and the extension 312 can also be connected by a fastener, such as a screw, or the roller 313 and the extension 312 can also be connected by a bearing, which can reduce the friction between the roller 313 and the extension 312 and make the roller 313 and the extension 312 have a longer service life.

[0059] In other embodiments, the rotating disk 320 may also be connected to the lifting rod 310 via a connecting mechanism (not shown in the figure), which is not a limitation.

[0060] In this embodiment, the lifting mechanism 300 may further include a transmission wheel 330, which is connected to a driver. A first tooth 322 is formed on the outer side wall of the rotating disk 320, and a second tooth 331 is formed on the outer side wall of the transmission wheel 330. The first tooth 322 and the second tooth 331 mesh, so that the transmission wheel 330 can drive the rotating disk 320 to rotate.

[0061] In this embodiment, the diameter of the rotating disk 320 is larger than the diameter of the transmission wheel 330, so that the rotation speed of the rotating disk 320 is less than the rotation speed of the transmission wheel 330, which is beneficial to improving the lifting accuracy of the lifting rod 310.

[0062] In this embodiment, the lifting mechanism 300 may further include an elastic element (not shown in the figure). The elastic element is disposed between the mounting base 100 and the limiting housing 200, and one end of the elastic element abuts against the top surface of the mounting base 100, and the other end of the elastic element abuts against the bottom surface of the limiting housing 200. This allows the lifting mechanism 300 to cause the limiting housing 200 to descend and remove the force on the limiting housing 200, or after the limiting housing 200 descends with the bottom housing 430, the limiting housing 200 can rebound and rise under the action of the elastic element to achieve reset.

[0063] In this embodiment, the lifting mechanism 300 may further include a controller connected to a driver. The controller is used to control the limiting housing 200 to descend relative to the mounting base 100 before the battery cell 420 of the battery 400 is installed on the mounting base 100, so as to avoid the battery cell 420. The controller may also be used to control the driver to remove the force on the limiting housing 200 after the battery cell 420 is installed on the mounting base 100, so that the limiting housing 200 can be reset to limit the top cover 410 and the bottom cover 430.

[0064] The above description discloses only preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. Therefore, equivalent variations made in accordance with the claims of the present invention are still within the scope of the present invention.

Claims

1. A battery assembly device, characterized in that: include: A mounting seat, wherein the mounting seat is provided with a raised portion, and the top cover of the battery is carried on the raised portion; A limit housing is arranged on the mounting seat and can be lifted and lowered relative to the mounting seat, the limit housing is formed with a receiving groove, the receiving groove is used to receive at least part of the battery; the receiving groove includes a first groove section and a second groove section, the axes of the first groove section and the second groove section are arranged to coincide with each other, and the width of the first groove section is smaller than the width of the second groove section, so that the bottom surface of the second groove section forms a first bearing surface, the first groove section is used to receive the top cover, and the first bearing surface is used to bear the bottom shell of the battery; The width of the first groove section along the first direction is greater than or equal to the width of the top cover along the first direction, and the width of the first groove section along the first direction is less than the width of the bottom shell along the first direction; the difference between the width of the second groove section along the first direction and the width of the battery cell along the first direction is greater than or equal to the thickness of the bottom shell along the first direction; the bottom shell is pressed downward by force, and the limit shell can passively descend with the bottom shell; The lifting mechanism comprises a driver and a connecting part, wherein the connecting part is connected to the limiting shell, and the driver is used for driving the connecting part to lift and lower.

2. The assembly device according to claim 1, characterized in that: The accommodating groove further includes a third groove section, which is arranged on a side of the first groove section away from the second groove section, and is used to accommodate at least a portion of the protruding portion.

3. The assembly device according to claim 2, characterized in that: The protruding portion is provided with a first limiting portion, and the first limiting portion is used to cooperate with the second limiting portion on the top cover to limit the top cover on the protruding portion.

4. The assembly device according to claim 1, characterized in that: The connecting part of the lifting mechanism comprises a lifting rod, the driver is connected to the lifting rod, and the lifting rod is connected to the limiting housing.

5. The assembly device according to claim 4, characterized in that: The lifting mechanism further comprises a rotating disk, which is drivingly connected to the driver, and the lifting rod is connected to or abuts against the rotating disk, so that the rotating disk can drive the lifting rod to move.

6. The assembly device according to claim 5, characterized in that: A accommodating opening is formed on the rotating disk, and the lifting rod includes a main rod body and an extension portion arranged on the main rod body, at least a portion of the extension portion is accommodated in the accommodating opening, the length of the accommodating opening along the lifting direction of the limiting shell is greater than the length of the portion of the extension portion accommodated in the accommodating opening along the lifting direction of the limiting shell, and the width of the accommodating opening in the vertical direction along the lifting direction of the limiting shell is greater than the width of the portion of the extension portion accommodated in the accommodating opening in the vertical direction along the lifting direction of the limiting shell.

7. The assembly device according to claim 5, characterized in that: The lifting mechanism further comprises a transmission wheel connected to the driver, a first gear tooth is formed on the outer wall of the rotating disk, a second gear tooth is formed on the outer wall of the transmission wheel, and the first gear tooth is meshed with the second gear tooth.

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