Fixing device and fixing equipment thereof

Abstract

The utility model discloses a fixing device and fixing equipment thereof. The fixing device is used for being arranged on a bottom plate and used for fixing a battery cell jig. The fixing device comprises a base, a fixing piece, a locking piece and a limiting piece. The first end face of the base is used for being fixedly connected with the bottom plate, and the fixing piece capable of sliding along the extending plane where the first end face is located is arranged on the second end face opposite to the first end face of the base. The locking piece is arranged between the fixing piece and the base; the locking piece is configured to be switched from a locking state to an unlocking state under the condition that the locking piece is subjected to acting force relative to the extending plane where the first end face is located. In the locking state, the fixing piece is limited to slide; the limiting piece is arranged between the fixing piece and the base; the limiting piece is configured to limit the moving distance of the fixing piece on the extending plane where the first end face is located. Wherein the part, protruding out of the base, of the fixing piece is used for fixing the battery cell jig.

Description

Technical Field

[0001] The present application relates to the technical field of new energy batteries, and in particular to a fixing device and fixing equipment thereof. Background Art

[0002] With the development of lithium battery industry, lithium battery products continue to emerge. Among them, a new type of battery structure - wire-drawn battery has attracted much attention. Wire-drawn refers to the asymmetric form of the positive and negative electrode materials of the electrode, that is, one end is in the form of a thin sheet or foil, and the other end is the format of winding the positive and negative electrode materials together, so that a wire-drawn structure can be formed.

[0003] The production of drawn-wire batteries requires combining the cell jig with the base plate. Currently, the combination of the cell jig and the base plate is generally achieved by bolts. However, the bolt fixing method makes the disassembly and installation of the cell jig and the base plate more time-consuming, thereby reducing production efficiency. Summary of the invention

[0004] In view of the above problems, the present application provides a fixing device and a fixing equipment thereof, which can solve the problem that the disassembly and installation of the current battery cell fixture and the base plate are fixed by bolts are time-consuming, thereby reducing the production efficiency of the wire-drawn battery.

[0005] In the first aspect, the present application provides a fixing device, which is used to be arranged on a base plate and used to fix a battery cell jig; the fixing device includes a base, a fixing part, a locking part and a limiting part; the first end face of the base is used to be fixedly connected to the base plate, and the second end face opposite to the first end face of the base is provided with the fixing part that can slide along the extension plane where the first end face is located; the locking part is arranged between the fixing part and the base; the locking part is configured to switch from a locked state to an unlocked state when subjected to a force relative to the extension plane where the first end face is located; wherein, in the locked state, the fixing part is restricted from sliding; the limiting part is arranged between the fixing part and the base; the limiting part is configured to limit the moving distance of the fixing part on the extension plane where the first end face is located; wherein the part of the fixing part protruding from the base is used to fix the battery cell jig.

[0006] The fixing device designed above controls the sliding state of the fixing part by whether the locking part is in a locked state or an unlocked state, and limits the sliding distance of the fixing part by a limiter, so that the designed fixing state adopts a locking pin fixing structure instead of a bolt for fixing, so that the battery fixture can be fixed and disassembled by manually switching the state of the locking part, thereby improving the disassembly and assembly speed between the battery cell fixture and the base, and improving the production efficiency of the wire-drawn battery.

[0007] In some embodiments, a groove is formed on the second end surface; the fixing member is slidably disposed in the groove.

[0008] In the above implementation manner, the present solution realizes the slidable setting of the fixing member by designing the groove, thereby making the fixing device structure simple and cost-saving.

[0009] In some embodiments, the fixing member includes a bayonet head and a sliding block; the bayonet head is fixedly connected to the sliding block, and the sliding block is slidably disposed in the groove.

[0010] In the above implementation mode, the sliding block is designed to be slidably disposed in the groove to drive the latch head thereon to slide, thereby achieving fixation, thereby making the fixing device simple in structure and saving costs.

[0011] In some embodiments, the groove includes a card slot and a gimbal; the side wall of the gimbal is connected to the card slot, and the distance between the gimbal surface and the base plate is greater than the distance between the bottom surface of the card slot and the base plate; a recessed portion is provided on the sliding block, and the recessed portion is arranged opposite to the side wall of the gimbal; a first elastic member is provided in the card slot, one end of the first elastic member is arranged in the recessed portion, and the other end of the first elastic member is connected to the side wall of the gimbal, and the elastic direction of the first elastic member is consistent with the extension plane where the first end face is located; wherein the first elastic member is configured so that when the locking member is in a locked state, it is in a compressed state; when the locking member is switched from a locked state to an unlocked state, it is switched from a compressed state to a released state, thereby pushing the fixing member to slide through compression and rebound of the first elastic member.

[0012] In the above-mentioned implementation mode, the present solution realizes the sliding of the fixing member by compression and rebound of the first elastic member arranged in the slot, thereby simplifying the structure of the fixing device.

[0013] In some embodiments, a strip hole is opened on the fixing member; the longer hole diameter of the strip hole is consistent with the extension plane where the first end face is located; a first bolt hole is opened on the base, and the first bolt hole corresponds to the strip hole; the limiting member includes a limiting bolt, the limiting bolt connects the base and the fixing member, and the bolt head of the limiting bolt is arranged in the strip hole, and the bolt rod of the limiting bolt is arranged in the first bolt hole.

[0014] In the above embodiment, the bolt head of the limiting bolt is set in the strip hole, and the bolt rod of the limiting bolt is set in the first bolt hole, thereby limiting the stroke of the fixing member (pin head) to achieve control of the moving distance and prevent the fixing member (pin head) from flying out after the first elastic member pops out.

[0015] In some embodiments, a receiving groove perpendicular to the direction of the first end face is provided on the base; a through hole is provided on the fixing member, and the through hole corresponds to the opening of the receiving groove; the locking member includes a self-locking pin and a second elastic member, one end of the second elastic member is connected to the bottom of the receiving groove, and the other end of the second elastic member is connected to the self-locking pin, and the elastic direction of the second elastic member is perpendicular to the extension plane where the first end face is located; wherein the second elastic member is configured such that when the locking member is in a locked state, the second elastic member is in a released state, and when the locking member is in an unlocked state, the second elastic member is in a compressed state; the self-locking pin is configured such that when the locking member is in a locked state, the self-locking pin is located in the receiving groove and the through hole; when the locking member is in an unlocked state, the self-locking pin is located in the receiving groove.

[0016] In the above-mentioned embodiment, the present scheme arranges the self-locking pin on the second elastic member, and through the compression and rebound of the second elastic member, the self-locking pin is switched in the receiving groove and the through hole, or only in the receiving groove, thereby realizing the switching between the locked state and the unlocked state, thereby simplifying the locking and unlocking of the fixing member.

[0017] In some embodiments, the self-locking pin is cylindrical, and the diameter of the through hole is larger than the cylindrical diameter of the self-locking pin.

[0018] In some embodiments, the sliding portion of the fixing member relative to the base is inclined from the first end surface to the second end surface of the base.

[0019] In the above embodiment, the sliding portion of the fixing piece relative to the base is designed to be inclined from the first end surface of the base to the second end surface, so that the fixing piece can smoothly contact and fix with the battery cell fixture during the sliding process, thereby reducing the wear between the fixing piece and the battery cell fixture.

[0020] In some embodiments, a plurality of bolt holes are provided on the base, and the plurality of bolt holes are arranged in a direction perpendicular to the first end surface; the plurality of bolt holes are used to cooperate with bolts to fix the base and the bottom plate.

[0021] In the above implementation mode, the present solution designs a plurality of bolt holes to cooperate with bolts to realize the fixation of the base and the bottom plate, so that the base can be more firmly combined with the bottom plate.

[0022] In a second aspect, the present application provides a fixing device, which includes a fixing device of any optional embodiment in the first aspect and a base plate; the first end surface of the base of the fixing device is fixedly connected to the base plate, and the base plate is used to place a battery cell fixture.

[0023] The fixing device designed above includes the fixing device described above. Therefore, the fixing device designed can control the sliding state of the fixing part by whether the locking part is in a locked state or an unlocked state, and limit the sliding distance of the fixing part by a limiter, so that the fixing state of the design adopts a locking pin fixing structure instead of a bolt for fixing, so that the battery fixture can be fixed and disassembled by manually switching the state of the locking part, thereby improving the disassembly and assembly speed between the battery cell fixture and the base, and improving the production efficiency of the wire-drawn battery.

[0024] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Moreover, the same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0026] Figure 1 A first structural schematic diagram of a fixing device provided in an embodiment of the present application;

[0027] Figure 2 A second structural schematic diagram of the fixing device provided in an embodiment of the present application;

[0028] Figure 3 A first structural schematic diagram of a fixing member provided in an embodiment of the present application;

[0029] Figure 4 A schematic diagram of the structure of the base groove provided in the embodiment of the present application;

[0030] Figure 5 A schematic diagram of the structure of the limiter provided in the embodiment of the present application;

[0031] Figure 6 A schematic diagram of the structure of a locking member provided in an embodiment of the present application;

[0032] Figure 7 A second structural schematic diagram of a fixing member provided in an embodiment of the present application;

[0033] Figure 8 A schematic diagram of the structure of the fixing device provided in an embodiment of the present application.

[0034] Icons: 10-base; 10A-first end face; 10B-second end face; 110-groove; 1110-slot; 1120-pan head; 1130-first elastic member; 120-first bolt hole; 130-accommodating groove; 20-fixing member; 20A-portion of the fixing member protruding from the base; 210-pin head; 220-sliding block; 230-through hole; 30-locking member; 310-self-locking pin; 320-second elastic member; 40-limiting member; 410-limiting bolt; 4110-bolt head; 4120-bolt rod; 50-strip hole; 60-bolt hole; A-bottom plate. DETAILED DESCRIPTION

[0035] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0037] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0038] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0039] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0040] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0041] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0042] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0043] At present, the battery cell jig used in battery cell wire drawing and shaping is generally fixed to the base plate by bolts. However, the bolt fixing method makes the disassembly and installation of the battery cell jig more time-consuming, thereby reducing production efficiency.

[0044] Based on the above problems, the present application designs a fixing device and a fixing equipment thereof, wherein the fixing device does not use bolts for fixing, but uses a locking pin fixing structure, thereby increasing the disassembly and assembly speed, and the fixing is stable and not loose.

[0045] Based on the above ideas, the present application first provides a fixing device, such as Figure 1 As shown, the fixing device 1 includes a base 10, a fixing member 20, a locking member 30 and a limiting member 40. The first end face 10A of the base 10 is used to be fixedly connected to the bottom plate A, and the bottom plate A is used to place the battery fixture B. The second end face 10B of the base 10 opposite to the first end face 10A is provided with an extension plane ( Figure 1 A fixing member 20 that slides on a plane formed by the x-direction and the y-direction in the coordinate system of the coordinate system of the coordinate system, a locking member 30 and a limiting member 40 are all arranged between the fixing member 20 and the base 10.

[0046] The locking member 30 is configured to change from a locked state (such as Figure 1 ) to unlocked state (as shown) Figure 2 In the locked state, the fixing member 20 is restricted from sliding by the locking member 30. The limiting member 40 is configured to limit the sliding movement of the fixing member 20 in the first direction ( Figure 1 and Figure 2 The moving distance in the x direction (in the x direction) is limited, and the portion 20A of the fixing member 20 protruding from the base 10 is used to fix the battery fixture. Among them, the portion 20A of the fixing member 20 protruding from the base 10 and the corresponding portion of the bottom plate A can clamp the battery fixture, thereby achieving the fixation of the battery fixture B (such as Figure 3 shown).

[0047] Specifically, the fixing device 1 designed above, when used, fixes the first end face 10A of the base 10 on the bottom plate A. The locking member 30 of the fixing device 1 may be initially in a locked state. When the locking member 30 is in the locked state, the fixing member 20 is in a restricted sliding state. When the locking member 30 is switched from the locked state to the unlocked state, the restriction of the fixing member 20 is cancelled, and the fixing member 20 slides along the extension plane where the first end face 10A of the base 10 is located, so that a part of the fixing member 20 protrudes from the base 10. Finally, the sliding distance of the fixing member 20 is limited by the limit member 40, so that the sliding of the fixing member 20 stops, and then the part 20A of the fixing member 20 protruding from the base 10 is used to fix the battery fixture. Among them, the state switching of the locking member 30 can be achieved by manual switching and electric control.

[0048] The fixing device 1 designed above controls the sliding state of the fixing part by whether the locking part is in a locked state or an unlocked state, and limits the sliding distance of the fixing part by a limiter, so that the designed fixing state adopts a locking pin fixing structure instead of a bolt for fixing, so that the battery fixture can be fixed and disassembled by manually switching the state of the locking part, thereby improving the disassembly and assembly speed between the battery cell fixture and the base, and improving the production efficiency of the wire-pulled battery.

[0049] In an optional implementation of this embodiment, if Figure 4 As shown, a groove 110 is formed on the second end surface 10B of the base 10 of the present solution, and the fixing member 20 is slidably disposed in the groove 110 .

[0050] As a possible implementation method, specifically, Figure 5As shown, the fixing member 20 may include a bayonet head 210 and a sliding block 220, the bayonet head 210 is fixedly connected to the sliding block 220, and the sliding block 220 is slidably disposed in the groove 110. Specifically, as Figure 4 As shown, the groove 110 may include a slot 1110 and a platform 1120, the side wall of the platform 1120 is connected to the slot 1110, and the distance between the surface of the platform 1120 and the bottom plate A is greater than the distance between the bottom surface of the slot 1110 and the bottom plate A; the sliding block 220 is provided with a recessed portion 2210, and the recessed portion 2210 is arranged opposite to the side wall of the platform 1120; a first elastic member 1130 is arranged in the slot 1110, one end of the first elastic member 1130 is arranged in the recessed portion 2210, and the other end of the first elastic member 1130 is arranged with the platform 1120. The first elastic member 1130 is fixedly connected to the side wall of the cloud head 1120, and the elastic direction of the first elastic member 1130 is consistent with the extension plane where the first end face 10A is located; wherein, the other end of the first elastic member 1130 can be welded to the side wall of the cloud head 1120, and can also be connected to the side wall of the cloud head 1120 by screws, and the first elastic member 1130 is configured so that when the locking member 30 is in a locked state, it is in a compressed state; when the locking member 30 is switched from a locked state to an unlocked state, it is switched from a compressed state to a released state, thereby pushing the fixing member 20 to slide through the compression and rebound of the first elastic member 1130.

[0051] In the fixing device 1 designed as above, when the locking member is in the locked state, the first elastic member 1130 is in a compressed state. Since the locking member 30 is restricted in the locked state, the first elastic member 1130 cannot be compressed and rebounded; when the locking member 30 is switched from the locked state to the unlocked state, the first elastic member 1130 is not restricted by the locking member 30, and it switches from the compressed state to the released state. The first elastic member 1130 compresses and rebounds to push the sliding block 220 of the fixing member 20 to slide in the slot 1110, so that the sliding block 220 drives the pin head 210 to slide, and then the sliding distance of the fixing member 20 is limited by the limit member 40, so that the sliding of the fixing member 20 stops, and then the part 20A of the pin head 210 protruding from the base 10 is used to fix the battery cell fixture.

[0052] In an optional implementation of this embodiment, if Figure 5 and Figure 6 As shown, the limiting member 40 of the present invention may include a limiting bolt 410, and a strip hole 50 is provided on the fixing member 20, and the longer hole diameter of the strip hole 50 is aligned with the sliding direction of the fixing member 20 (eg Figure 1 A first bolt hole 120 is formed on the base 10 and corresponds to the strip hole 50.

[0053] On the basis of the above, the limiting bolt designed in this scheme connects the base 10 and the fixing member 20 , and the bolt head 4110 of the limiting bolt 410 designed in this scheme is arranged in the strip hole 50 , and the bolt rod 4120 of the limiting bolt 410 is arranged in the first bolt hole 120 .

[0054] With the above-designed limiting member 40, since the bolt head 4110 of the limiting bolt 410 is disposed in the strip hole 50, and the strip hole 50 is disposed on the fixing member 20, the strip hole also moves along with the fixing member 20 during sliding, so that the bolt head 4110 of the limiting bolt 410 abuts against one end of the strip hole 50, thereby achieving the limiting function. Figure 1 and Figure 2 3 is a schematic diagram of the fixing member 20 when the locking member 30 is in the locked state and the fixing member 20 is limited by the limiting member 410. It can be seen from the figure that the fixing member 20 slides to the left in the figure, and during the sliding process, the bolt of the limiting member 410 abuts against the right end of the strip hole 50, thereby limiting the fixing member 20. The strip hole 50 can be a rectangular strip hole with four right angles or a rectangular strip hole with four rounded corners.

[0055] It should be noted that the bolt head 4110 of the limiting bolt 410 can be located in the middle of the strip hole or at one end of the strip hole. However, it should be noted that the end where the bolt head 4110 of the limiting bolt 410 is located is the end close to the sliding direction of the fixing member 20 (for example, Figure 1 The right end of the middle strip hole) cannot be set at the end away from the sliding direction of the fixing member 20 (for example, Figure 1 the left end of the middle strip hole).

[0056] In an optional implementation of this embodiment, if Figure 6 As shown, the locking member 30 designed in this scheme includes a self-locking pin 310 and a second elastic member 320, a receiving groove 130 perpendicular to the direction of the first end face 10A is provided on the base 10, and a through hole 230 is provided on the fixing member 20, and the through hole 230 corresponds to the opening of the receiving groove 130. Among them, one end of the second elastic member 320 is connected to the bottom of the receiving groove, and the other end of the second elastic member 30 is connected to the self-locking pin 310, and the elastic direction of the second elastic member 320 is perpendicular to the extension plane where the first end face 10A is located. Specifically, the second elastic member 320 can be a spring, and the spring is arranged perpendicular to the extension plane where the first end face 10A is located.

[0057] The locking member 30 of the above-mentioned design is in a released state when the locking member 30 is in a locked state, so that the self-locking pin 310 is arranged in the accommodating groove 130 and the through hole 230 on the fixing member 20, thereby realizing the snap-on locking; when the second elastic member 320 is in an unlocked state, the self-locking pin 310 presses the second elastic member 320, so that it is in a compressed state, so that the self-locking pin 310 is only located in the accommodating groove 130 after moving downward, thereby unlocking the snap-on locking of the fixing member 20 by the locking member 30, and the fixing member 20 begins to slide accordingly.

[0058] As a possible implementation, in the locked state, the self-locking pin 310 is located in the receiving groove 130 and the through hole 230. The staff can use a tool to press down the self-locking pin 310 in the through hole 230, so that the second elastic member 320 is compressed, and the self-locking pin 310 is only located in the receiving groove 130. In this case, since the fixing member 20 does not have the self-locking pin 310 buckle, the first elastic member 1130 switches from the compressed state to the released state, so that the first elastic member 1130 is compressed and rebounded to push the fixing member 20 to slide, so that the fixing member 20 fixes the battery fixture relative to the sliding part of the base 10. As another possible implementation, in addition to the manual method, the present solution can also adopt an electric control method. For example, the locking member 30 can also be driven by a motor to compress and rebound the first elastic member 1130, thereby driving the self-locking pin 310 to move up and down, thereby realizing the aforementioned locked state and unlocked state.

[0059] In the optional implementation of this embodiment, please continue to refer to Figure 6 As a possible implementation, the self-locking pin 310 designed in this solution may be cylindrical. In this case, the diameter of the through hole 230 provided on the fixing member 20 is larger than the cylindrical diameter of the self-locking pin 310 .

[0060] In an optional implementation manner of this embodiment, as a possible implementation manner, Figure 7 As shown, the portion 20A of the fixing member 20 protruding from the base 10 designed in this solution can be inclined from the first end face 10A of the base 10 to the second end face 10B, so that the fixing member 20 can smoothly contact and fix with the battery fixture during the sliding process, thereby reducing the wear between the fixing member 20 and the battery fixture. Of course, the sliding portion of the fixing member 20 relative to the base 10 designed in this solution can also be horizontal, and the specific shape can be adaptively adjusted according to the actual application scenario.

[0061] In an optional implementation of this embodiment, if Figure 1 and Figure 2As shown, the base 10 of the present invention is provided with a plurality of bolt holes 60 , which are arranged perpendicular to the direction of the first end surface 10A. The plurality of bolt holes 60 are used to cooperate with bolts to fix the base 10 on the bottom plate A.

[0062] It should be noted here that the fixing device 1 designed in the present scheme can fix the first end face 10A of the base 10 and the bottom plate A in advance, and then modulate the locking piece 30 of the fixing device 1 to a locked state. When the battery cell jig is fixed, the battery cell jig can be placed at the target position of the bottom plate A, and then the locking piece 30 of the fixing device 1 can be modulated to an unlocked state to achieve the fixation of the battery cell jig.

[0063] The present application also provides a fixing device, such as Figure 8 As shown, the fixing device comprises a fixing device 1 of any one of the embodiments described above and a bottom plate A, wherein a first end surface 10A of a base 10 of the fixing device 1 is fixedly connected to the bottom plate A, and the bottom plate A is used for placing a battery cell fixture.

[0064] The fixing device designed above includes the fixing device 1 described above. Therefore, the fixing device designed can control the sliding state of the fixing part by whether the locking part is in a locked state or an unlocked state, and limit the sliding distance of the fixing part by a limiter, so that the designed fixing state adopts a locking pin fixing structure instead of a bolt for fixing, so that the battery fixture can be fixed and disassembled by manually switching the state of the locking part, thereby improving the disassembly and assembly speed between the battery cell fixture and the base, and improving the production efficiency of the wire-drawn battery.

[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A fixing device, characterized in that: The fixing device is used to be arranged on the bottom plate and used to fix the battery fixture; the fixing device includes a base, a fixing member, a locking member and a limiting member; The first end surface of the base is used for fixed connection with the bottom plate, and the second end surface opposite to the first end surface of the base is provided with the fixing member which can slide along the extension plane where the first end surface is located; The locking member is disposed between the fixing member and the base; the locking member is configured to switch from a locked state to an unlocked state when subjected to a force acting on the extension plane of the first end surface; wherein, in the locked state, the fixing member is restricted from sliding; The limiting member is arranged between the fixing member and the base; the limiting member is configured to limit the moving distance of the fixing member on the extension plane where the first end face is located; wherein the portion of the fixing member protruding from the base is used to fix the battery cell fixture.

2. The fixing device according to claim 1, characterized in that: The second end surface is provided with a groove; the fixing member is slidably disposed in the groove.

3. The fixing device according to claim 2, characterized in that: The fixing member comprises a bayonet head and a sliding block; the bayonet head is fixedly connected to the sliding block, and the sliding block is slidably arranged in the groove.

4. The fixing device according to claim 3, characterized in that: The groove includes a card slot and a pan head; The side wall of the gimbal is connected to the card slot, and the distance between the gimbal surface and the bottom plate is greater than the distance between the bottom surface of the card slot and the bottom plate; The sliding block is provided with a recessed portion, and the recessed portion is arranged opposite to the side wall of the pan / tilt platform; A first elastic member is arranged in the card slot, one end of the first elastic member is arranged in the recessed portion, the other end of the first elastic member is connected to the side wall of the gimbal, and the elastic direction of the first elastic member is consistent with the extension plane where the first end face is located; wherein, the first elastic member is configured so that when the locking member is in a locked state, it is in a compressed state; when the locking member is switched from a locked state to an unlocked state, it is switched from a compressed state to a released state, thereby pushing the fixing member to slide through compression and rebound of the first elastic member.

5. The fixing device according to claim 1, characterized in that: The fixing member is provided with a strip-shaped hole; the longer hole diameter of the strip-shaped hole is consistent with the extension plane where the first end surface is located; A first bolt hole is provided on the base, and the first bolt hole corresponds to the strip-shaped hole; The limiting member includes a limiting bolt, the limiting bolt connects the base and the fixing member, and the bolt head of the limiting bolt is arranged in the strip hole, and the bolt rod of the limiting bolt is arranged in the first bolt hole.

6. The fixing device according to claim 1, characterized in that: The base is provided with a receiving groove perpendicular to the first end surface; the fixing member is provided with a through hole, and the through hole corresponds to the opening of the receiving groove; The locking member includes a self-locking pin and a second elastic member, one end of the second elastic member is connected to the bottom of the accommodating groove, the other end of the second elastic member is connected to the self-locking pin, and the elastic direction of the second elastic member is perpendicular to the extension plane where the first end surface is located; Wherein, the second elastic member is configured such that when the locking member is in a locked state, the second elastic member is in a released state, and when the locking member is in an unlocked state, the second elastic member is in a compressed state; The self-locking pin is configured such that when the locking member is in a locked state, the self-locking pin is located in the receiving groove and the through hole; when the locking member is in an unlocked state, the self-locking pin is located in the receiving groove.

7. The fixing device according to claim 6, characterized in that: The self-locking pin is cylindrical, and the aperture of the through hole is larger than the cylindrical diameter of the self-locking pin.

8. The fixing device according to claim 1, characterized in that: The sliding portion of the fixing member relative to the base is inclined from the first end surface of the base to the second end surface.

9. The fixing device according to claim 1, characterized in that: The base is provided with a plurality of bolt holes, and the plurality of bolt holes are arranged in a direction perpendicular to the first end surface; the plurality of bolt holes are used to cooperate with bolts to fix the base and the bottom plate.

10. A fixing device, characterized in that: The fixing device comprises a fixing device as described in any one of claims 1 to 9 and a bottom plate; the first end surface of the base of the fixing device is fixedly connected to the bottom plate, and the bottom plate is used to place a battery cell fixture.

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