Liquid injection needle fixing device
The injection needle fixing device stabilizes the needle through an L-shaped structure with limiting grooves and buffer pads, addressing vibration-induced shifts and enhancing electrolyte injection consistency in lithium-ion battery production.
Patent Information
- Application Number
- CN202420545778.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-20
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-03-20
AI Technical Summary
The injection needle in lithium-ion battery production shifts due to vibration, leading to incomplete electrolyte injection and increased defect rates, disrupting the production rhythm.
A liquid injection needle fixing device with an L-shaped structure, featuring limiting grooves and detachable assembly, along with buffer pads to stabilize the needle during movement.
Prevents needle offset and ensures complete electrolyte injection by absorbing vibration, reducing defects and maintaining production efficiency.
Smart Images
Figure CN222191099U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of batteries, in particular to a liquid injection needle fixing device. Background Art
[0002] In the actual production process of lithium-ion batteries, there are certain requirements for the injection volume. Therefore, the gram weight of the electrolyte distributed by the injection pump to the injection cup needs to be within the standard. The injection needle will shift due to vibration during movement, resulting in part of the electrolyte not being injected into the injection cup. The injection defect rate is high, and batteries with less liquid need to be replenished, affecting the production rhythm.
[0003] Therefore, the utility model provides a liquid injection needle fixing device to solve the above problem. Utility Model Content
[0004] The purpose of the utility model is to provide a liquid injection needle fixing device to solve the problems raised in the above background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a device for fixing an injection needle, characterized in that it includes a device body and a fixing plate, the device body is an L-shaped structure, a No. 1 limiting groove is provided on the transverse section of the device body, a No. 2 limiting groove is provided on the back side of the fixing plate, and the cylindrical limiting groove formed by the No. 1 limiting groove and the No. 2 limiting groove is used to place the injection needle, and the device body and the fixing plate are detachably assembled to fix the injection needle placed in the cylindrical limiting groove formed by the No. 1 limiting groove and the No. 2 limiting groove.
[0006] Preferably, a No. 1 threaded hole is provided on the longitudinal section of the device body, and a connecting block is fixedly installed on the device body through bolts cooperating with the No. 1 threaded hole, and a No. 1 buffer pad is provided between the connecting block and the device body.
[0007] Preferably, a No. 2 threaded hole is provided on the fixing plate, and the fixing plate is fixedly mounted on the transverse section of the device body by bolts cooperating with the No. 2 threaded hole.
[0008] Preferably, a No. 2 buffer pad is provided on the inner wall of the No. 1 limiting groove and the No. 2 limiting groove.
[0009] Beneficial effects of the utility model:
[0010] The utility model provides a No. 1 buffer pad between the device body and the connecting block and a No. 2 buffer pad on the inner walls of the No. 1 limiting groove and the No. 2 limiting groove, which can effectively prevent the injection needle from being offset due to vibration during movement, resulting in poor battery injection. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.
[0012] Figure 1 It is a front view of the utility model;
[0013] Figure 2 It is a top view of the utility model in the assembled state;
[0014] Figure 3 It is a top view of the utility model in a disassembled state.
[0015] In the figure: 1. device body; 2. fixing plate; 3. injection needle; 4. threaded hole No. 1; 5. threaded hole No. 2; 6. limit groove No. 1; 7. limit groove No. 2; 8. connecting block; 9. buffer pad No. 1; 10. buffer pad No. 2. DETAILED DESCRIPTION
[0016] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.
[0017] The utility model provides Figure 1-3 The device for fixing an injection needle shown in the figure includes a device body 1 and a fixing plate 2. The device body 1 is an L-shaped structure. A No. 1 limiting groove 6 is provided on the transverse section of the device body 1. A No. 2 limiting groove 7 is provided on the back side of the fixing plate 2. The cylindrical limiting groove formed by the No. 1 limiting groove 6 and the No. 2 limiting groove 7 is used to place the injection needle 3. The device body 1 and the fixing plate 2 are detachably assembled to fix the injection needle 3 placed in the cylindrical limiting groove formed by the No. 1 limiting groove 6 and the No. 2 limiting groove 7.
[0018] Furthermore, a No. 1 threaded hole 4 is provided on the longitudinal section of the device body 1, and a connecting block 8 is fixedly installed on the device body 1 by means of bolts cooperating with the No. 1 threaded hole 4. A No. 1 buffer pad 9 is provided between the connecting block 8 and the device body 1, and the No. 1 buffer pad 9 can reduce the vibration transmission to the device body 1 when the connecting block 8 vibrates, thereby avoiding the displacement of the injection needle 3.
[0019] Furthermore, a No. 2 threaded hole 5 is provided on the fixing plate 2 , and the fixing plate 2 is fixedly mounted on the transverse section of the device body 1 by means of bolts cooperating with the No. 2 threaded hole 5 .
[0020] Furthermore, a second buffer pad 10 is provided on the inner wall of the first limiting groove 6 and the second limiting groove 7. The second buffer pad 10 can reduce the vibration transmission to the injection needle 3 when the device body 1 vibrates, thereby preventing the injection needle 3 from being deflected.
[0021] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A device for fixing an injection needle, characterized in that: The invention comprises a device body (1) and a fixing plate (2), wherein the device body (1) is an L-shaped structure, a first limiting groove (6) is provided on the transverse section of the device body (1), a second limiting groove (7) is provided on the back side of the fixing plate (2), the cylindrical limiting groove formed by the first limiting groove (6) and the second limiting groove (7) is used to place an injection needle (3), and the device body (1) and the fixing plate (2) are detachably assembled to fix the injection needle (3) placed in the cylindrical limiting groove formed by the first limiting groove (6) and the second limiting groove (7).
2. The device for fixing an injection needle according to claim 1, characterized in that: A No. 1 threaded hole (4) is provided on the longitudinal section of the device body (1); a connecting block (8) is fixedly mounted on the device body (1) by means of bolts cooperating with the No. 1 threaded hole (4); and a No. 1 buffer pad (9) is provided between the connecting block (8) and the device body (1).
3. The device for fixing an injection needle according to claim 1, characterized in that: The fixing plate (2) is provided with a No. 2 threaded hole (5), and the fixing plate (2) is fixedly mounted on the transverse section of the device body (1) by means of bolts that cooperate with the No. 2 threaded hole (5).
4. The device for fixing an injection needle according to claim 1, characterized in that: A second buffer pad (10) is provided on the inner walls of the first limiting groove (6) and the second limiting groove (7).