Wrinkle removing roller and wrinkle removing assembly for removing wrinkles of battery pole piece, battery and electric equipment

Abstract

The utility model provides a wrinkle removing roller and a wrinkle removing assembly for removing wrinkles of a battery pole piece, a battery and electric equipment. The wrinkle removing roller comprises a roller body, the roller body is provided with a first matching part and a second matching part which are arranged on the surface of the roller body, the first matching part and the second matching part respectively comprise a first thread groove and a second thread groove which are formed in the surface of the roller body, and the rotation directions of the first thread groove and the second thread groove are opposite. The acting force applied to the battery pole piece by the first matching part when the roller body rotates is opposite to the acting force applied to the battery pole piece by the second matching part when the roller body rotates; in the axial direction of the roller body, the first thread groove comprises a plurality of first sub thread grooves with different thread pitches, and the second thread groove comprises a plurality of second sub thread grooves with different thread pitches; according to the wrinkle removing roller for removing the wrinkles of the battery pole piece disclosed by the embodiment of the utility model, the breakage of the pole piece can be avoided on the basis of greatly improving the wrinkle removing effect of the wrinkle removing roller disclosed by the utility model.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery technology field especially relates to a kind of wrinkle removal roll and wrinkle removal subassembly for battery pole piece wrinkle removal, battery, electric equipment. BACKGROUND

[0002] Battery pole piece is important component for making battery in battery manufacturing field, in the production process of battery pole piece, battery pole piece will appear wrinkling problem.

[0003] In related art, it is usually through increasing the tension of pole piece to relieve wrinkling, but the risk of pole piece breakage increases after tension increases, which affects manufacturing efficiency, wastes material resources and increases production cost. UTILITY MODEL CONTENT

[0004] To solve the problem that battery pole piece is easy to wrinkle in related art, the utility model provides a kind of wrinkle removal roll and wrinkle removal subassembly for battery pole piece wrinkle removal, battery, electric equipment.

[0005] The wrinkle removal roll for battery pole piece wrinkle removal of the utility model embodiment includes roller body, the roller body has first cooperation part and second cooperation part arranged on its surface, the first cooperation part and the second cooperation part include first thread groove and second thread groove arranged on the surface of the roller body respectively, the rotation direction of the first thread groove and the second thread groove is opposite, so that the force exerted on the battery pole piece by the first cooperation part when the roller body rotates is opposite to the force exerted on the battery pole piece by the second cooperation part when the roller body rotates.

[0006] In the axial direction of the roller body, the first thread groove includes a plurality of first sub-thread grooves with different pitches, and the second thread groove includes a plurality of second sub-thread grooves with different pitches.

[0007] The wrinkle removal roll for battery pole piece wrinkle removal of the utility model embodiment sets the first cooperation part including first thread groove and the second cooperation part including second thread groove on the roller body, the force exerted on the battery pole piece by the first cooperation part when the roller body rotates is opposite to the force exerted on the battery pole piece by the second cooperation part when the roller body rotates, which can flatten the battery pole piece.

[0008] Meanwhile, in the axial direction of the roller body, the first thread groove is set to include a plurality of first sub-thread grooves with different pitches, and the second thread groove is set to include a plurality of second sub-thread grooves with different pitches, so that the first sub-thread grooves and the second sub-thread grooves with different pitches can be set according to the different wrinkling degrees of each region in the width direction of the battery pole piece.

[0009] For example, when the wrinkle degree of the battery pole piece area corresponding to a certain one of the plurality of first sub-thread grooves is high, the pitch of the first sub-thread groove at this position can be set to a smaller pitch, and when the wrinkle degree of the battery pole piece area corresponding to a certain one of the plurality of first sub-thread grooves is low, the pitch of the first sub-thread groove at this position can be set to a larger pitch, thereby avoiding the problem of excessive or insufficient force exerted by the wrinkle removing roller on each area of the battery pole piece, and greatly improving the wrinkle removing effect of the wrinkle removing roller while avoiding pole piece breakage.

[0010] Therefore, the wrinkle removing roller for battery pole piece wrinkle removal according to the embodiments of the present application can greatly improve the wrinkle removing effect of the wrinkle removing roller while avoiding pole piece breakage.

[0011] In some embodiments, the roller body comprises a roller shaft, the roller shaft having a first mounting portion and a second mounting portion arranged on the surface thereof;

[0012] The roller body further comprises a plurality of first threaded sleeves sleeved on the first mounting portion, the plurality of first threaded sleeves being arranged in sequence along the axial direction of the roller body, and the surfaces of the plurality of first threaded sleeves defining the first fitting portion;

[0013] The roller body further comprises a plurality of second threaded sleeves sleeved on the second mounting portion, the plurality of second threaded sleeves being arranged in sequence along the axial direction of the roller body, and the surfaces of the plurality of second threaded sleeves defining the second fitting portion.

[0014] In some embodiments, each of the plurality of first threaded sleeves is provided with a first sub-thread groove, and the first sub-thread grooves of the plurality of first threaded sleeves are connected in sequence to define the first thread groove;

[0015] Each of the plurality of second threaded sleeves is provided with a second sub-thread groove, and the second sub-thread grooves of the plurality of second threaded sleeves are connected in sequence to define the second thread groove.

[0016] In some embodiments, the first thread groove and the second thread groove are any one of an arc-shaped groove and a square groove.

[0017] In some embodiments, the first fitting portion and the second fitting portion are arranged symmetrically along the axial line of the roller body.

[0018] In some embodiments, the surface of the roller body is provided with an anti-skid layer.

[0019] The utility model further provides a wrinkle removing assembly.

[0020] The wrinkle removing assembly according to the embodiments of the present application comprises a plurality of wrinkle removing rollers as described in the above embodiments, and the plurality of wrinkle removing rollers are arranged at intervals in the conveying direction of the battery pole piece.

[0021] In some embodiments, the wrinkle removing assembly of the utility model embodiments further comprises a driving roller, which is located upstream of the plurality of wrinkle removing rollers or downstream of the plurality of wrinkle removing rollers or between the plurality of wrinkle removing rollers in the battery tab conveying direction.

[0022] The utility model further provides a battery.

[0023] The battery tab of the battery of the utility model embodiments is subjected to wrinkle removing by the wrinkle removing assembly.

[0024] The utility model further provides a power utilization equipment.

[0025] The power utilization equipment of the utility model embodiments comprises the battery as described in the above embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical scheme of the utility model embodiments, the drawings needed to be used in the description of the utility model embodiments will be briefly introduced as follows, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained according to these drawings without the creative labor of the person skilled in the art.

[0027] Figure 1 It is the structure schematic view of the wrinkle removing roller of the utility model embodiments;

[0028] Figure 2 It is the exploded view of the wrinkle removing roller of the utility model embodiments;

[0029] Figure 3 It is the structure schematic view of the wrinkle removing assembly of the utility model embodiments.

[0030] In the drawing:

[0031] 100, wrinkle removing roller;200, wrinkle removing assembly;

[0032] 1, roller body;101, first matching part;1011, first threaded groove;102, second matching part;1021, second threaded groove;

[0033] 2, roller shaft;

[0034] 201, first mounting part;2011, first threaded sleeve;20111, first sub-threaded groove;

[0035] 202, second mounting part;2021, second threaded sleeve;20211, second sub-threaded groove;

[0036] 3, antiskid layer;

[0037] 4, driving roller;

[0038] 5. Battery electrodes. Detailed Implementation

[0039] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0040] In the description of this utility model, it should be understood that the terms "longitudinal," "radial," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0041] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal encapsulation of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0042] The following is in conjunction with the appendix Figures 1-3 This invention describes a wrinkle-removing roller 100 for removing wrinkles from battery electrodes, according to an embodiment of the present invention.

[0043] like Figure 1 As shown, the wrinkle-removing roller 100 for removing wrinkles from battery electrodes according to an embodiment of the present invention includes a roller body 1. The roller body 1 has a first mating part 101 and a second mating part 102 disposed on its surface. The first mating part 101 and the second mating part 102 respectively include a first threaded groove 1011 and a second threaded groove 1021 disposed on the surface of the roller body 1. The first threaded groove 1011 and the second threaded groove 1021 rotate in opposite directions, so that the force applied by the first mating part 101 to the battery electrode 5 when the roller body 1 rotates is opposite to the force applied by the second mating part 102 to the battery electrode 5 when the roller body 1 rotates.

[0044] In the axial direction of the roller body 1, the first thread groove 1011 includes a plurality of first sub-thread grooves 20111 with different pitches, and the second thread groove 1021 includes a plurality of second sub-thread grooves 20211 with different pitches.

[0045] The utility model embodiment for battery pole piece wrinkle removing wrinkle removing roller 100 passes through setting first cooperation department 101 including first thread groove 1011 and second cooperation department 102 including second thread groove 1021 on roller body 1, the force that first cooperation department 101 is applied to battery pole piece 5 when roller body 1 rotates is opposite the force that second cooperation department 102 is applied to battery pole piece 5 when roller body 1 rotates, and then the effect of flattening battery pole piece 5 can be achieved.

[0046] Meanwhile in the axial direction of the roller body 1, the first thread groove 1011 is set to include a plurality of first sub-thread grooves 20111 with different pitches, and the second thread groove 1021 is set to include a plurality of second sub-thread grooves 20211 with different pitches. Thus, the first sub-thread grooves 20111 and the second sub-thread grooves 20211 with different pitches can be set according to the different wrinkle degrees of each region of the battery pole.

[0047] For example, when the wrinkle degree of the region of the battery pole corresponding to a certain one of the plurality of first sub-thread grooves is high, the pitch of the first sub-thread groove at this position can be set to a smaller pitch. When the wrinkle degree of the region of the battery pole corresponding to a certain one of the plurality of first sub-thread grooves is low, the pitch of the first sub-thread groove at this position can be set to a larger pitch. Thus, the problem of the force applied by the wrinkle removing roller to each region of the battery pole being too large or too small can be avoided, and the pole breakage can be avoided while greatly improving the wrinkle removing effect of the wrinkle removing roller.

[0048] Therefore, the wrinkle removing roller 100 for battery pole piece wrinkle removing has the characteristics of good wrinkle removing effect.

[0049] In some embodiments, the first thread groove 1011 and the second thread groove 1021 are any one of an arc-shaped groove and a square-shaped groove.

[0050] It can be understood that the arc-shaped groove is a groove with a circular arc-shaped cross section, and the square-shaped groove is a groove with a square-shaped cross section. The first thread groove 1011 and the second thread groove 1021 can also be selected to be grooves with an inverted triangular cross section and an inverted trapezoidal cross section, which can be selected according to actual needs.

[0051] In some embodiments, the first cooperation department 101 and the second cooperation department 102 are symmetrically arranged along the axis of the roller body 1.

[0052] For example, Figure 2As shown, in some embodiments, the roller body 1 comprises a roller shaft 2, the roller shaft 2 is provided with a first mounting portion 201 and a second mounting portion 202 on the surface thereof;

[0053] The roller body 1 further comprises a plurality of first threaded sleeves 2011 sleeved on the first mounting portion 201, the plurality of first threaded sleeves 2011 are sequentially arranged along the axial direction of the roller body 1, and the surface of the plurality of first threaded sleeves 2011 defines a first matching portion 101;

[0054] The roller body 1 further comprises a plurality of second threaded sleeves 2021 sleeved on the second mounting portion 202, the plurality of second threaded sleeves 2021 are sequentially arranged along the axial direction of the roller body 1, and the surface of the plurality of second threaded sleeves 2021 defines a second matching portion 102.

[0055] Further, the plurality of first threaded sleeves 2011 are each provided with a first sub-threaded groove 20111, and the first sub-threaded grooves 20111 of the plurality of first threaded sleeves 2011 are sequentially connected to define a first threaded groove 1011;

[0056] Optionally, the number of the first threaded sleeves 2011 can be 2-5, for example, 2, 3, 4 or 5.

[0057] The plurality of second threaded sleeves 2021 are each provided with a second sub-threaded groove 20211, and the second sub-threaded grooves 20211 of the plurality of second threaded sleeves 2021 are sequentially connected to define a second threaded groove 1021.

[0058] Optionally, the number of the second threaded sleeves 2021 can be 2-5, for example, 2, 3, 4 or 5.

[0059] The wrinkle removal roller 100 for battery pole piece wrinkle removal in the embodiment of the utility model can replace the first threaded sleeves 2011 and the second threaded sleeves 2021 with appropriate pitches according to the wrinkle removal needs of different battery pole pieces 5, and is more convenient and fast.

[0060] In some embodiments, the surface of the roller body 1 is provided with an anti-skid layer 3.

[0061] The wrinkle removal roller 100 for battery pole piece wrinkle removal in the embodiment of the utility model can improve the friction force between the wrinkle removal roller 100 and the battery pole piece 5, so that the wrinkle removal roller 100 can better apply force to the battery pole piece 5, and thus the friction force can be better improved.

[0062] The utility model further provides a wrinkle removal assembly 200.

[0063] As Figure 3As shown, the wrinkle removing assembly 200 of the embodiment of the utility model comprises a plurality of the wrinkle removing rollers 100 described in the above embodiment, the plurality of wrinkle removing rollers 100 are arranged at intervals in the conveying direction of the battery pole piece 5, the plurality of wrinkle removing rollers 100 are provided with the battery pole piece 5, the plurality of wrinkle removing rollers 100 move synchronously with the battery pole piece 5, the roller first matching part 101 and the second matching part 102 of the wrinkle removing roller exert the action force in the opposite direction on the battery pole piece 5 when the roller body 1 rotates, thereby the battery pole piece 5 can be wrinkle removed.

[0064] In some embodiments, as Figure 3 As shown, the wrinkle removing assembly 200 of the embodiment of the utility model further comprises a driving roller 4, in the conveying direction of the battery pole piece 5, the driving roller 4 is located upstream of the plurality of wrinkle removing rollers 100 or downstream of the plurality of wrinkle removing rollers 100 or between the plurality of wrinkle removing rollers 100.

[0065] It can be understood that the driving roller 4 of the wrinkle removing assembly 200 of the embodiment of the utility model can be arranged upstream of the plurality of wrinkle removing rollers 100, can be arranged downstream of the plurality of wrinkle removing rollers 100, or can be arranged between any adjacent wrinkle removing rollers 100 of the plurality of wrinkle removing rollers 100, and the specific arrangement mode of the driving roller 4 can be arranged according to the wrinkle removing requirement.

[0066] The utility model further provides a battery.

[0067] The battery pole piece 5 of the battery of the embodiment of the utility model is wrinkle removed by the wrinkle removing assembly 200 of the above embodiment.

[0068] The utility model further provides a kind of electric equipment.

[0069] The electric equipment of the utility model includes the battery as described in the above embodiment.

[0070] The above embodiment is only used to illustrate the technical scheme of the utility model, and is not limited thereto; although the utility model is described in detail with reference to the foregoing embodiment, those skilled in the art should understand that: it can still modify the technical scheme recorded in the foregoing embodiment, or make equivalent replacement to part of technical features; and these modifications or replacements do not make the essence of the corresponding technical scheme deviate from the spirit and scope of the technical scheme of the embodiment of the utility model, and should be included in the protection scope of the utility model.

Claims

1. A creping roller (100) for creping of battery pole pieces, characterized in that The roll body (1) has a first matching part (101) and a second matching part (102) arranged on the surface thereof, the first matching part (101) and the second matching part (102) respectively comprise a first thread groove (1011) and a second thread groove (1021) arranged on the surface of the roll body (1), the first thread groove (1011) and the second thread groove (1021) are opposite in rotation direction, so that the force exerted by the first matching part (101) on the battery pole piece (5) is opposite to the force exerted by the second matching part (102) on the battery pole piece (5) when the roll body (1) rotates; In the axial direction of the roll body (1), the first thread groove (1011) comprises a plurality of first sub-thread grooves (20111) with different pitches, and the second thread groove (1021) comprises a plurality of second sub-thread grooves (20211) with different pitches.

2. Wrinkle-removing roller (100) according to claim 1, characterized in that The roll body (1) comprises a roll shaft (2) having a first mounting part (201) and a second mounting part (202) arranged on the surface thereof; The roll body (1) further comprises a plurality of first thread sleeves (2011) sleeved on the first mounting part (201), the plurality of first thread sleeves (2011) are arranged in sequence in the axial direction of the roll body (1), and the surfaces of the plurality of first thread sleeves (2011) define the first matching part (101); The roll body (1) further comprises a plurality of second thread sleeves (2021) sleeved on the second mounting part (202), the plurality of second thread sleeves (2021) are arranged in sequence in the axial direction of the roll body (1), and the surfaces of the plurality of second thread sleeves (2021) define the second matching part (102).

3. Wrinkle-removing roller (100) according to claim 2, characterized in that Each of the plurality of first thread sleeves (2011) is provided with a first sub-thread groove (20111), and the first sub-thread grooves (20111) of the plurality of first thread sleeves (2011) are sequentially connected to define the first thread groove (1011); Each of the plurality of second thread sleeves (2021) is provided with a second sub-thread groove (20211), and the second sub-thread grooves (20211) of the plurality of second thread sleeves (2021) are sequentially connected to define the second thread groove (1021).

4. The wrinkle-removing roller (100) according to claim 1, characterized by The first thread groove (1011) and the second thread groove (1021) are any one of an arc-shaped groove and a square groove.

5. The wrinkle-removing roller (100) according to claim 1, characterized in that, The first matching part (101) and the second matching part (102) are arranged symmetrically along the axis of the roll body (1).

6. The wrinkle-removing roller (100) according to claim 1, characterized by The surface of the roll body (1) is provided with an anti-skid layer (3).

7. A wrinkle reduction assembly (200) characterized by, A plurality of wrinkle removing rollers (100) as claimed in any one of claims 1-6 are arranged at intervals in the conveying direction of the battery pole piece (5).

8. The creping assembly (200) according to claim 7, further comprising a drive roller (4) located upstream of the plurality of creping rollers (100) or downstream of the plurality of creping rollers (100) or between the plurality of creping rollers (100) in the direction of conveyance of the battery electrode sheet (5).

9. A battery, characterized by The battery electrode sheet (5) of the battery is creped by the creping assembly (200) according to any one of claims 7-8.

10. An electric device, characterized by A battery comprising the battery according to claim 9.

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