Liquid injection machine for soft package lithium ion battery

Abstract

The utility model discloses a soft package lithium ion battery liquid injection machine which comprises a supporting frame, the supporting frame is used for supporting and positioning the soft package lithium ion battery liquid injection machine, an auxiliary liquid injection mechanism is fixedly arranged on one side of the supporting frame, and an elastic clamping mechanism is fixedly arranged at the top end of the auxiliary liquid injection mechanism; the elastic clamping mechanism comprises a positioning frame, a positioning groove is formed in the middle of the top of the positioning frame, and a positioning gear is rotationally arranged in the middle of the positioning groove; the flexible package lithium ion battery is driven by the moving frame to perform reciprocating liquid injection, so that liquid is uniformly injected into the inner side of the flexible package lithium ion battery, and the flexible package lithium ion battery at the top end of the positioning frame vibrates, so that residual bubbles on the inner side of the flexible package lithium ion battery are conveniently discharged through vibration; the stability and uniformity of liquid injection of the soft package lithium ion battery are improved, the performance of the soft package lithium ion battery is improved, and the practicability of the liquid injection machine of the soft package lithium ion battery is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of soft-pack lithium-ion batteries, in particular to a liquid filling machine for soft-pack lithium-ion batteries. Background Art

[0002] Soft-pack lithium batteries are just liquid lithium-ion batteries covered with a polymer shell. They are structurally packaged with aluminum-plastic film. In the event of a safety hazard, the soft-pack battery will only bulge and crack. The weight of the soft-pack battery is 40% lighter than the steel-shell lithium battery of the same capacity, and 20% lighter than the aluminum-shell battery. The capacity of the soft-pack battery is 10-15% higher than that of the steel-shell battery of the same specification and size, and 5-10% higher than that of the aluminum-shell battery. The internal resistance of the soft-pack battery is smaller than that of the lithium battery. The internal resistance of the domestic soft-pack battery core can be as low as 35mΩ, which greatly reduces the self-consumption of the battery. The shape of the soft-pack battery can be customized according to customer needs to develop new battery cell models.

[0003] In the prior art, when a soft-pack lithium-ion battery filling machine is filling liquid, the soft-pack lithium-ion battery is clamped and positioned at the side, which is not convenient for controlling according to the thickness of the soft-pack lithium-ion battery. When the soft-pack lithium-ion battery is not fully filled, it is impossible to continuously clamp and position the soft-pack lithium-ion battery, which easily causes the hidden danger of the soft-pack lithium-ion battery slipping. When filling liquid, it is easy to cause the hidden danger of insufficient filling of the corner inside the soft pack, and it is easy to cause excessive bubble deposition during filling liquid, which is not conducive to observing the injection amount, and reduces the convenience of using the soft-pack lithium-ion battery filling liquid. Therefore, a soft-pack lithium-ion battery filling machine is needed. Utility Model Content

[0004] In order to solve the above problems, the purpose of the utility model is to provide a soft-pack lithium-ion battery filling machine to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model proposes a soft-pack lithium-ion battery liquid injection machine, comprising a support frame, the support frame is used to support and position the soft-pack lithium-ion battery liquid injection machine, one side of the support frame is fixedly provided with an auxiliary liquid injection mechanism, and the top of the auxiliary liquid injection mechanism is fixedly provided with an elastic clamping mechanism;

[0006] The elastic clamping mechanism includes a positioning frame, a positioning groove is opened in the middle position of the top of the positioning frame, a positioning gear is rotatably provided in the middle position of the positioning groove, both ends of the outer wall of the positioning gear are meshed with positioning racks, one end of the two positioning racks is fixed with a clamping frame, both ends of one side of the two clamping frames are fixed with anti-slip pads, both ends of the two clamping frames are connected by three positioning rods, both ends of the outer walls of the plurality of positioning rods are inserted with springs, and both ends of the plurality of positioning rods are fixed with limit blocks.

[0007] In one example, a driving motor is fixedly provided at the middle position of the positioning groove, and an output end of the driving motor is fixedly connected to the middle position of the positioning gear.

[0008] In one example, the auxiliary liquid injection mechanism includes a moving frame, an electric telescopic rod is fixedly provided at the middle position of one side of the support frame, the telescopic end of the electric telescopic rod is fixedly connected to one side of the moving frame, a vibration motor is fixedly provided on one side of the moving frame, and the output end of the vibration motor is fixedly connected to one side of the positioning frame.

[0009] In one example, an elastic pad is fixedly provided at the bottom end of the positioning frame.

[0010] In one example, fixing rods are fixed at both ends of one side of the mobile frame, one end of the outer wall of the two fixing rods is respectively connected with the two ends of one side of the support frame, and one end of the two fixing rods is fixed with positioning blocks.

[0011] In one example, a CNC liquid injection seat is fixedly provided on one side of the support frame.

[0012] In one example, a switch panel is fixedly provided on one side of the support frame, and the drive motor, the vibration motor and the electric telescopic rod are all electrically connected to an external power supply through the switch panel.

[0013] The soft-pack lithium-ion battery filling machine proposed by the utility model can bring the following beneficial effects:

[0014] 1. The soft-pack lithium-ion battery liquid injection machine drives the soft-pack lithium-ion battery to move back and forth to inject liquid through a moving frame, so that the inside of the soft-pack lithium-ion battery is evenly injected with liquid, and the soft-pack lithium-ion battery on the top of the positioning frame vibrates, which is convenient for the residual bubbles inside the soft-pack lithium-ion battery to be vibrated and discharged, thereby increasing the stability and uniformity of the liquid injection of the soft-pack lithium-ion battery, improving the performance of the soft-pack lithium-ion battery, and increasing the practicality of the soft-pack lithium-ion battery liquid injection machine.

[0015] 2. This soft-pack lithium-ion battery liquid filling machine drives the positioning gear to rotate through a driving motor, so that the two positioning racks drive the fixed clamping frame to move slowly, so that the inner side of the clamping frame always fits the two sides of the soft-pack lithium-ion battery, which is convenient for the soft-pack lithium-ion battery to be stably supported and positioned and avoids leakage of liquid inside the soft-pack lithium-ion battery, thereby increasing the operational stability of the soft-pack lithium-ion battery liquid filling machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the auxiliary liquid injection mechanism structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the elastic clamping mechanism of the utility model;

[0020] Figure 4 This is a schematic diagram of the driving structure of the clamping frame of the utility model.

[0021] In the figure: 1. Support frame; 2. Positioning frame; 3. CNC injection seat; 4. Moving frame; 5. Fixed rod; 6. Positioning block; 7. Vibration motor; 8. Driving motor; 9. Clamping frame; 10. Anti-slip pad; 11. Positioning rod; 12. Spring; 13. Limit block; 14. Elastic pad; 15. Positioning groove; 16. Positioning gear; 17. Positioning rack; 18. Electric telescopic rod. DETAILED DESCRIPTION

[0022] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in the form of examples in conjunction with the accompanying drawings.

[0023] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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 present invention.

[0024] The embodiments are as follows. The utility model provides Figure 1-4 A soft-pack lithium-ion battery liquid injection machine shown includes a support frame 1, which is used to support and position the soft-pack lithium-ion battery liquid injection machine. An auxiliary liquid injection mechanism is fixedly provided on one side of the support frame 1, and an elastic clamping mechanism is fixedly provided on the top of the auxiliary liquid injection mechanism.

[0025] The elastic clamping mechanism includes a positioning frame 2, a positioning groove 15 is provided in the middle position of the top of the positioning frame 2, a positioning gear 16 is rotatably provided in the middle position of the positioning groove 15, both ends of the outer wall of the positioning gear 16 are meshed with positioning racks 17, one end of the two positioning racks 17 are fixed with a clamping frame 9, both ends of one side of the two clamping frames 9 are fixed with anti-slip pads 10, both ends of the two clamping frames 9 are inserted and connected by three positioning rods 11, both ends of the outer walls of multiple positioning rods 11 are inserted with springs 12, and both ends of the multiple positioning rods 11 are fixed with limit blocks 13, and the two positioning racks 17 drive the fixed clamping frame 9 to move slowly, so that the inner side of the clamping frame 9 is always in contact with the two sides of the soft-pack lithium-ion battery, which is convenient for the soft-pack lithium-ion battery to be stably supported and positioned and avoid leakage of liquid inside the soft-pack lithium-ion battery, thereby increasing the operational stability of the soft-pack lithium-ion battery injection machine.

[0026] A driving motor 8 is fixedly disposed at the middle position of the positioning groove 15 , and an output end of the driving motor 8 is fixedly connected to the middle position of the positioning gear 16 .

[0027] Furthermore, the auxiliary liquid injection mechanism includes a moving frame 4, an electric telescopic rod 18 is fixedly provided at the middle position of one side of the support frame 1, the telescopic end of the electric telescopic rod 18 is fixedly connected to one side of the moving frame 4, a vibration motor 7 is fixedly provided on one side of the moving frame 4, and the output end of the vibration motor 7 is fixedly connected to one side of the positioning frame 2. The moving frame 4 drives the soft-pack lithium-ion battery to move back and forth for liquid injection, so that the inside of the soft-pack lithium-ion battery is evenly injected with liquid, and the positioning frame 2 is driven to vibrate by the output end of the vibration motor 7 fixed on one side of the moving frame 4, so that the soft-pack lithium-ion battery at the top of the positioning frame 2 is vibrated, which is convenient for the residual bubbles inside the soft-pack lithium-ion battery to be vibrated and discharged, thereby increasing the stability and uniformity of the liquid injection of the soft-pack lithium-ion battery, improving the performance of the soft-pack lithium-ion battery, and increasing the practicality of the soft-pack lithium-ion battery injection machine.

[0028] An elastic pad 14 is fixedly provided at the bottom end of the positioning frame 2 .

[0029] Fixed rods 5 are fixed at both ends of one side of the moving frame 4 , one end of the outer wall of the two fixed rods 5 is respectively connected with the two ends of one side of the supporting frame 1 , and one end of the two fixed rods 5 is fixed with a positioning block 6 .

[0030] A numerical control liquid injection seat 3 is fixedly provided on one side of the support frame 1 .

[0031] Furthermore, a switch panel is fixedly provided on one side of the support frame 1, and the drive motor 8, the vibration motor 7 and the electric telescopic rod 18 are all electrically connected to the external power supply through the switch panel.

[0032] Working principle: When the soft-pack lithium-ion battery injection machine is needed, the output end of the driving motor 8 fixed on the inner wall of the positioning groove 15 drives the positioning gear 16 to rotate, so that the tooth surface of the positioning gear 16 drives the two positioning racks 17 to mesh and rotate respectively, so that the two positioning racks 17 drive the two clamping frames 9 to move stably, so that the two clamping frames 9 are stably clamped on both sides of the soft-pack lithium-ion battery through the anti-slip pads 10 fixed on both sides, so that the uninjected soft-pack lithium-ion battery is stably positioned, and the telescopic end of the electric telescopic rod 18 fixed on one side of the support frame 1 drives the moving frame 4 to slide along the inner wall of the support frame 1, so that the moving frame 4 is moved and positioned through the sliding displacement of the two fixed rods 5 and the support frame 1, so that the moving frame 4 drives the soft-pack lithium-ion battery to move back and forth to inject liquid, so that The inside of the soft-pack lithium-ion battery is uniformly injected with liquid, and the positioning frame 2 is driven to vibrate by the output end of the vibration motor 7 fixed on one side of the moving frame 4, so that the soft-pack lithium-ion battery on the top of the positioning frame 2 is vibrated, which is convenient for the residual bubbles inside the soft-pack lithium-ion battery to be vibrated and discharged, thereby increasing the stability and uniformity of the liquid injection of the soft-pack lithium-ion battery, improving the performance of the soft-pack lithium-ion battery, and increasing the practicality of the soft-pack lithium-ion battery injection machine. The positioning gear 16 is driven by the driving motor 8 to rotate, so that the two positioning racks 17 drive the fixed clamping frame 9 to move slowly, so that the inner side of the clamping frame 9 is always in contact with the two sides of the soft-pack lithium-ion battery, which is convenient for the soft-pack lithium-ion battery to be stably supported and positioned and avoid leakage of liquid inside the soft-pack lithium-ion battery, thereby increasing the operational stability of the soft-pack lithium-ion battery injection machine.

[0033] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0034] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. A soft-pack lithium-ion battery filling machine, comprising: A support frame (1), the support frame (1) is used for supporting and positioning a soft-pack lithium-ion battery injection machine, an auxiliary injection mechanism is fixedly provided on one side of the support frame (1), and an elastic clamping mechanism is fixedly provided on the top of the auxiliary injection mechanism; The invention is characterized in that: the elastic clamping mechanism comprises a positioning frame (2), a positioning groove (15) is provided in the middle position of the top of the positioning frame (2), a positioning gear (16) is rotatably provided in the middle position of the positioning groove (15), positioning racks (17) are meshed at both ends of the outer wall of the positioning gear (16), a clamping frame (9) is fixedly provided at one end of the two positioning racks (17), anti-slip pads (10) are fixedly provided at both ends of one side of the two clamping frames (9), both ends of the two clamping frames (9) are connected by three positioning rods (11), springs (12) are inserted at both ends of the outer walls of the plurality of positioning rods (11), and limit blocks (13) are fixedly provided at both ends of the plurality of positioning rods (11).

2. A soft-pack lithium-ion battery filling machine according to claim 1, characterized in that: A driving motor (8) is fixedly arranged at the middle position of the positioning groove (15), and an output end of the driving motor (8) is fixedly connected to the middle position of the positioning gear (16).

3. A soft-pack lithium-ion battery liquid injection machine according to claim 2, characterized in that: The auxiliary liquid injection mechanism comprises a moving frame (4), an electric telescopic rod (18) is fixedly provided at the middle position of one side of the support frame (1), the telescopic end of the electric telescopic rod (18) is fixedly connected to one side of the moving frame (4), a vibration motor (7) is fixedly provided on one side of the moving frame (4), and the output end of the vibration motor (7) is fixedly connected to one side of the positioning frame (2).

4. The soft-pack lithium-ion battery liquid filling machine according to claim 1, characterized in that: An elastic pad (14) is fixedly provided at the bottom end of the positioning frame (2).

5. The soft-pack lithium-ion battery liquid injection machine according to claim 3, characterized in that: Fixed rods (5) are fixedly provided at both ends of one side of the mobile frame (4), one end of the outer wall of the two fixed rods (5) is respectively connected to the two ends of one side of the support frame (1), and one end of the two fixed rods (5) is fixedly provided with a positioning block (6).

6. The soft-pack lithium-ion battery liquid filling machine according to claim 1, characterized in that: A numerically controlled liquid injection seat (3) is fixedly provided on one side of the support frame (1).

7. The soft-pack lithium-ion battery liquid filling machine according to claim 3, characterized in that: A switch panel is fixedly provided on one side of the support frame (1), and the drive motor (8), the vibration motor (7) and the electric telescopic rod (18) are all electrically connected to an external power source via the switch panel.

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