Lithium battery electrolyte injection equipment capable of conveniently controlling electrolyte injection amount

Abstract

The utility model belongs to the technical field of electrolyte injection, and particularly relates to lithium battery electrolyte injection equipment convenient for controlling injection quantity, which comprises a fixed seat, a liquid bin is fixedly mounted at the top of the fixed seat, a cover plate is fixedly connected to the top of the liquid bin, a stirring component is arranged in the liquid bin, a detection mechanism is arranged on the cover plate, and the detection mechanism is connected with the fixed seat. And a conveying pump is fixedly mounted at the top of the fixed seat. According to the lithium battery electrolyte injection equipment capable of conveniently controlling the electrolyte injection amount, through the use of the detection mechanism, when electrolyte in the electrolyte bin is reduced, a trapezoidal block and a rotating wheel move in a trapezoidal groove of a sliding block, and the trapezoidal block moves to the rightmost side of the sliding block, the sliding block is pushed to make contact with a contact switch, and a pump body is controlled to be started for electrolyte supplementation; when the floating plate ascends and the trapezoidal block slides to the leftmost side of the sliding block, the sliding block can be driven to be separated from the contact switch, the pump body is closed, the liquid supplementing process lasts for a period of time through the mode of automatically controlling liquid supplementing based on liquid level changes, and liquid supplementing is stable.

Description

TECHNICAL FIELD

[0001] The utility model relates to electrolyte injection technical field, concretely is a kind of lithium battery electrolyte injection equipment of easy control injection volume. BACKGROUND

[0002] Lithium battery as the core energy storage device in new energy field, its electrolyte injection process directly influences battery performance.

[0003] At present, in order to be able to supplement lithium battery electrolyte at any time, optical sensor is generally provided in liquid bin for monitoring the distance of liquid level, and when lithium battery electrolyte is too little, the pump is started by controller to realize the supplement of electrolyte, but since electrolyte has certain corrosiveness, optical sensor is easily eroded in the process of use, and thus the detection of optical sensor is affected, therefore, it needs to be detected by more stable mechanism, in view of this, a kind of lithium battery electrolyte injection equipment of easy control injection volume is provided. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of lithium battery electrolyte injection equipment of easy control injection volume, can solve the problems raised in the above background art.

[0005] To achieve the above object, the lithium battery electrolyte injection equipment of easy control injection volume provided by the utility model, including fixed seat, the top of the fixed seat is fixedly installed with liquid bin, the top of the liquid bin is fixedly connected with cover plate, stirring assembly is provided in the liquid bin, detection mechanism is provided on the cover plate, the top of the fixed seat is fixedly installed with delivery pump, the delivery pump is communicated with injection assembly by delivery pipe, the outer wall of the fixed seat is fixedly connected with fixed link, the detection mechanism includes:

[0006] Floating plate, the upper side of the floating plate is fixedly connected with mounting plate, the upper side of the mounting plate is fixedly connected with vertical rod;

[0007] Hinged rod, one end of the hinged rod is hinged with vertical rod, the other end of the hinged rod is arranged in the trapezoidal notch of sliding block;

[0008] Guide rail, the guide rail is fixedly connected on the cover plate, the sliding block is slidably connected with guide rail, the cover plate is fixedly connected with contact switch.

[0009] Preferably, the trapezoidal block is hinged to the end of the articulated rod away from the vertical rod, a runner is rotatably connected to the outer wall of the trapezoidal block, the lowering of the float plate drives the vertical rod to descend, the articulated rod moves, and the trapezoidal block and the runner move in the trapezoidal groove of the slider, and when the trapezoidal block moves to the rightmost side of the slider, the trapezoidal block pushes the slider to move to contact the contact switch, the switch controls the pump body to start, and the automatic electrolyte supplement is realized; after the electrolyte supplement is completed, the float plate gradually rises, the trapezoidal block moves to the leftmost side of the slider, and the slider is separated from the contact switch, so that the pump body is closed; and the supplementing mode is more stable.

[0010] Preferably, the stirring assembly comprises a motor one, the motor one is fixedly connected to the upper side of the cover plate, an output shaft of the motor one is fixedly connected with a rotating shaft, the rotating shaft is fixedly connected with a limiting ring one and a limiting ring two, and a stirring blade is fixedly connected to the bottom of the rotating shaft; the rotation of the stirring blade prevents the electrolyte solute from precipitating.

[0011] Preferably, the float plate is sleeved on the outer wall of the rotating shaft.

[0012] Preferably, the injection assembly comprises an injection head, a motor two is fixedly connected to the top of the injection head, an output shaft of the motor two is fixedly connected with a connecting shaft, and helical blades are fixedly connected to the outer wall of the connecting shaft; the output shaft of the motor two drives the connecting shaft to rotate, and then drives the helical blades to rotate, so that the electrolyte is uniformly injected; and the injection speed of the electrolyte is adjusted by controlling the rotation speed of the helical blades.

[0013] Preferably, a supplement port is formed in the upper side of the cover plate, and a pump body is arranged on the supplement port.

[0014] The lithium battery electrolyte injection equipment provided by the utility model has the following beneficial effects:

[0015] (1), the lithium battery electrolyte injection equipment convenient to control injection volume through the use of detection mechanism, when the electrolyte in the liquid bin reduces, the float plate descends, drives the vertical rod and the articulated rod to move, makes the trapezoidal block and the runner move in the trapezoidal groove of the slider, when the trapezoidal block moves to the rightmost side of the slider, the slider is pushed and contacts the contact switch, controls the pump body to start and supplements, and after the electrolyte supplement is completed, the float plate rises, the trapezoidal block slides to the leftmost side of the slider and drives the slider to separate from the contact switch, and the pump body is closed; the supplementing mode based on the liquid level change automatically controls the supplementing, so that the supplementing process lasts for a period of time, and the supplementing is stable.

[0016] (2) The lithium battery electrolyte injection equipment that facilitates control of the injection volume achieves uniform injection of electrolyte by using the injection component, which drives the spiral blades to rotate. At the same time, by controlling the rotation speed of the spiral blades, the injection speed of the electrolyte can be precisely controlled to meet the requirements of different lithium battery production for injection volume and injection speed. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0019] Figure 2 This is a partial three-dimensional sectional view of the present invention;

[0020] Figure 3 This is a schematic diagram of the testing mechanism of this utility model;

[0021] Figure 4 This is a partial structural diagram of the testing mechanism of this utility model;

[0022] Figure 5 This is a schematic diagram of the slider structure of this utility model;

[0023] Figure 6 This is a cross-sectional view of the injection component of this utility model.

[0024] Explanation of icon numbers:

[0025] 1. Fixed base; 2. Liquid tank; 3. Cover plate; 4. Stirring assembly; 5. Detection mechanism; 6. Transfer pump; 7. Injection assembly; 8. Fixed rod; 31. Liquid replenishment port; 41. Motor 1; 42. Rotating shaft; 43. Limiting ring 1; 44. Limiting ring 2; 45. Stirring blade; 51. Float plate; 52. Mounting plate; 53. Vertical rod; 54. Hinge rod; 55. Slider; 56. Guide rail; 57. Contact switch; 541. Trapezoidal block; 542. Rotating wheel; 71. Injection head; 72. Motor 2; 73. Connecting shaft; 74. Spiral blade.

[0026] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0027] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts under the premise that no creative efforts are made, belong to the scope of protection of the present application.

[0028] Please refer to Figures 1-6 The utility model provides a kind of lithium battery electrolyte injection equipment facilitating control injection quantity, including fixed seat 1, the top of fixed seat 1 is fixedly installed with liquid storehouse 2, the top of liquid storehouse 2 is fixedly connected with cover plate 3, stirring assembly 4 is provided in liquid storehouse 2, detection mechanism 5 is provided on cover plate 3, the top of fixed seat 1 is fixedly installed with delivery pump 6, delivery pump 6 is communicated with injection assembly 7 by delivery pipe, fixed rod 8 is fixedly connected on the outer wall of fixed seat 1.

[0029] In the embodiments of the present application, in order to prevent electrolyte solute from precipitating, specifically, the stirring assembly 4 includes a motor 41 fixedly connected to the upper side of the cover plate 3, an output shaft of the motor 41 is fixedly connected with a rotating shaft 42, the rotating shaft 42 is fixedly connected with a limiting ring one 43 and a limiting ring two 44, a bottom of the rotating shaft 42 is fixedly connected with a stirring blade 45, the output shaft of the motor 41 is rotated to drive the rotating shaft 42 to rotate, and then drive the stirring blade 45 to rotate, thereby preventing the electrolyte solute from precipitating.

[0030] Further, a liquid supplementing opening 31 is formed on the upper side of the cover plate 3, a pump body is arranged on the liquid supplementing opening 31, the detection mechanism 5 includes a floating plate 51, a hinged rod 54 and a guide rail 56, the floating plate 51 is sleeved on the outer wall of the rotating shaft 42, an upper side of the floating plate 51 is fixedly connected with a mounting plate 52, an upper side of the mounting plate 52 is fixedly connected with a vertical rod 53, an upper side of the floating plate 51 is fixedly connected with the mounting plate 52, an upper side of the mounting plate 52 is fixedly connected with the vertical rod 53, the guide rail 56 is fixedly connected on the cover plate 3, a sliding block 55 is slidably connected with the guide rail 56, a contact switch 57 is fixedly connected on the cover plate 3, a trapezoidal block 541 is hingedly connected to an end of the hinged rod 54 away from the vertical rod 53, a rotating wheel 542 is rotatably connected to the outer wall of the trapezoidal block 541, the floating plate 51 is lowered to drive the vertical rod 53 to descend, so that the hinged rod 54 moves, and then drive the trapezoidal block 541 and the rotating wheel 542 to move in the trapezoidal groove of the sliding block 55, and then when the trapezoidal block 541 moves to the rightmost side of the sliding block 55, the trapezoidal block 541 pushes the sliding block 55 to move to contact with the contact switch 57, to control the pump body to start, thereby realizing automatic supplementing of the electrolyte, after the supplementing of the electrolyte is completed, the floating plate 51 gradually rises, when the trapezoidal block 541 moves to the leftmost side of the sliding block 55, the sliding block 55 is driven to move away from the contact switch 57, so that the pump body is closed, and this automatic control supplementing based on the change of liquid level makes the supplementing process last for a period of time, and the supplementing is stable.

[0031] Further, the density of the electrolyte of the lithium battery is about 1.1-1.3g / cm 3 Therefore, the material density of the floating plate 51 needs to be ≤1.1g / cm 3 .

[0032] Further, the injection assembly 7 comprises an injection head 71, the top of the injection head 71 is fixedly connected with a second motor 72, the output shaft of the second motor 72 is fixedly connected with a connecting shaft 73, the outer wall of the connecting shaft 73 is fixedly connected with a spiral blade 74, when the spiral blade 74 is driven to rotate by starting the second motor 72, the uniform injection of the electrolyte is realized, and meanwhile, the injection speed of the electrolyte can be accurately controlled by controlling the rotating speed of the spiral blade 74, so as to meet the requirements of different lithium battery production on the injection amount and injection speed.

[0033] It should be noted that the above-mentioned electrical components are all products of the prior art, which are selected, installed and debugged by the person skilled in the art according to the needs of use, so as to ensure that each electrical component can work normally, and the components are all general standard components or components known by the person skilled in the art, the structure and principle of which can be known by the person skilled in the art through technical manuals or through conventional experimental methods, and here are not limited in detail.

[0034] In use, when the electrolyte in the liquid bin 2 gradually decreases, the floating plate 51 descends, drives the vertical rod 53 to descend, drives the articulated rod 54 to move, and then drives the trapezoidal block 541 and the rotating wheel 542 to move in the trapezoidal groove of the sliding block 55, and then when the trapezoidal block 541 moves the rightmost side of the sliding block 55, the trapezoidal block 541 will drive the sliding block 55 to move to contact the contact switch 57, control the pump body to start, and realize the automatic supplement of the electrolyte, after the supplement of the electrolyte is completed, the floating plate 51 gradually rises, and when the trapezoidal block 541 moves the leftmost side of the sliding block 55, the trapezoidal block 541 drives the sliding block 55 to move away from the contact switch 57, so that the pump body is closed.

[0035] The above-mentioned is only the preferred embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structural transformation made by utilizing the utility model specification and the drawing contents, or direct / indirect application in other related technical fields under the utility model concept of the utility model is included in the patent protection range of the utility model.

Claims

1. A lithium battery electrolyte injection device for easy control of the injection volume, comprising a fixed base (1), characterized in that: A liquid tank (2) is fixedly installed on the top of the fixed base (1), and a cover plate (3) is fixedly connected to the top of the liquid tank (2). A stirring assembly (4) is provided in the liquid tank (2), and a detection mechanism (5) is provided on the cover plate (3). A delivery pump (6) is fixedly installed on the top of the fixed base (1), and the delivery pump (6) is connected to an injection assembly (7) through a delivery pipe. A fixing rod (8) is fixedly connected to the outer wall of the fixed base (1). The detection mechanism (5) includes: A floating plate (51) is fixedly connected to an mounting plate (52) on its upper side, and a vertical rod (53) is fixedly connected to the upper side of the mounting plate (52). A hinge rod (54) is hinged at one end to a vertical rod (53), and the other end of the hinge rod (54) is set in a trapezoidal slot of a slider (55). The guide rail (56) is fixedly connected to the cover plate (3), the slider (55) slides with the guide rail (56), and a contact switch (57) is fixedly connected to the cover plate (3).

2. The lithium battery electrolyte injection device for easy control of injection volume according to claim 1, characterized in that: The end of the hinge rod (54) away from the vertical rod (53) is hinged to a trapezoidal block (541), and a rotating wheel (542) is rotatably connected to the outer wall of the trapezoidal block (541).

3. The lithium battery electrolyte injection device for easy control of injection volume according to claim 1, characterized in that: The stirring assembly (4) includes a motor (41), which is fixedly connected to the upper side of the cover plate (3). The output shaft of the motor (41) is fixedly connected to a rotating shaft (42). A limiting ring (43) and a limiting ring (44) are fixedly connected on the rotating shaft (42). A stirring blade (45) is fixedly connected to the bottom of the rotating shaft (42).

4. The lithium battery electrolyte injection device for easy control of injection volume according to claim 3, characterized in that: The float (51) is sleeved on the outer wall of the rotating shaft (42).

5. The lithium battery electrolyte injection device for easy control of injection volume according to claim 1, characterized in that: The injection assembly (7) includes an injection head (71), a second motor (72) is fixedly connected to the top of the injection head (71), a connecting shaft (73) is fixedly connected to the output shaft of the second motor (72), and a spiral blade (74) is fixedly connected to the outer wall of the connecting shaft (73).

6. The lithium battery electrolyte injection device for easy control of injection volume according to claim 1, characterized in that: The cover plate (3) has a liquid replenishment port (31) on its upper part, and a pump body is provided on the liquid replenishment port (31).

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