Liquid injection mechanism and battery liquid injection equipment

Abstract

The utility model belongs to the technical field of battery manufacturing equipment, and particularly relates to a liquid injection mechanism and battery liquid injection equipment, the liquid injection mechanism is used for injecting electrolyte into a battery jig provided with a battery body, and the liquid injection mechanism comprises a support frame, a carrier plate, a lifting driving piece, and a liquid injection joint and a vacuum joint which are arranged on the carrier plate; the carrying plate is installed on the supporting frame in a sliding mode, and the lifting driving piece is installed on the supporting frame and connected with the carrying plate. The lifting driving part is used for driving the liquid injection connector and the vacuum connector to move through the carrying plate, so that the liquid injection connector is in butt joint with a liquid injection hole of the battery jig, and the vacuum connector is in butt joint with a valve hole of the battery jig. The electrolyte is injected into the battery jig by the electrolyte injection joint in a vacuum state, so that the speed and the efficiency of injecting the electrolyte into the battery jig by the electrolyte injection joint are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to battery manufacturing equipment technical field, especially, relate to a kind of liquid injection mechanism and battery liquid injection equipment. BACKGROUND

[0002] Battery is the energy storage and energy supply device in mobile device, and the demand of battery is also more and more big.Battery includes shell and battery body installed in shell, in order to guarantee the activity of battery body in shell, electrolyte also needs to be injected into shell.

[0003] In prior art, electrolyte is usually injected into the inner cavity of shell by liquid injection mechanism;During the process that electrolyte is injected into shell by liquid injection mechanism, since the air pressure in shell is equal to atmospheric pressure, electrolyte can only flow into battery body under the positive pressure of liquid injection mechanism, and there are technical problems of slow liquid injection speed and low liquid injection efficiency. SUMMARY

[0004] The utility model solves the technical problems of slow liquid injection speed and low liquid injection efficiency when electrolyte is injected into battery shell by liquid injection mechanism in prior art, and provides a kind of liquid injection mechanism and battery liquid injection equipment.

[0005] To solve the above problems, the utility model provides a kind of liquid injection mechanism for injecting electrolyte into battery fixture installed with battery body, which includes support frame, carrier plate, lifting driving part and liquid injection connector and vacuum connector installed on the carrier plate;The carrier plate is slidingly installed on the support frame, and the lifting driving part is installed on the support frame and connected to the carrier plate.

[0006] The lifting driving part is used to drive the liquid injection connector and the vacuum connector to move through the carrier plate, so that the liquid injection connector is connected with the liquid injection hole of the battery fixture, and the vacuum connector is connected with the valve hole of the battery fixture.

[0007] Optionally, the liquid injection mechanism further includes moving driving part and liquid storage box provided with liquid storage groove;The moving driving part is installed on the support frame and connected to the liquid storage box, and the liquid storage groove is used to store electrolyte dropped by the liquid injection connector.

[0008] Optionally, guide hole is arranged on the support frame, and the liquid injection mechanism further includes guide rod installed on the liquid storage box, and one end of the guide rod away from the liquid storage box is slidingly inserted into the guide hole.

[0009] Optionally, the liquid injection mechanism further includes guide rail installed on the support frame and sliding block installed on the carrier plate, and the sliding block is slidingly connected with the guide rail.

[0010] Optionally, the carrier plate is provided with a plurality of the liquid injection connectors and the vacuum connectors which are distributed at intervals.

[0011] Optionally, the liquid injection mechanism further comprises an integrated pipe which is installed on the support frame and is communicated with all the vacuum connectors.

[0012] Another embodiment of the utility model further provides a battery liquid injection equipment which comprises a battery fixture and the above-mentioned liquid injection mechanism, wherein the battery fixture comprises a fixture body and a valve body which is installed on the fixture body.

[0013] The fixture body is provided with a liquid injection hole, a liquid storage cavity and an internal space for installing a battery body, the liquid injection hole is communicated with the internal cavity of the battery body through the liquid storage cavity, and the valve body is provided with a valve hole which is communicated with the liquid storage cavity.

[0014] Optionally, the fixture body comprises a first box body, a second box body and a first liquid injection nozzle, the liquid injection hole and the liquid storage cavity are arranged on the first box body, and the valve body and the first liquid injection nozzle are installed on the first box body.

[0015] The first box body is detachably installed on the second box body, the internal space is arranged between the first box body and the second box body, and the first liquid injection nozzle is docked with a second liquid injection nozzle of the battery body which is located in the internal space.

[0016] In the utility model, the lifting driving part drives the carrier plate to move downwards, the liquid injection connector on the carrier plate is docked with the liquid injection hole of the battery fixture, the vacuum connector is docked with the valve hole of the battery fixture, after the internal part of the battery fixture is extracted into a vacuum state by the vacuum connector through the vacuum pump, the electrolyte can be injected into the internal part of the battery fixture by the liquid injection connector through the liquid injection pump, the liquid injection connector can more easily inject the electrolyte into the battery fixture due to the vacuum state of the internal part of the battery fixture, and therefore the speed and efficiency of injecting the electrolyte into the internal part of the battery fixture by the liquid injection connector are improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] The utility model will be further explained in connection with the drawings and embodiments.

[0018] Figure 1 The structure schematic view of the liquid injection mechanism provided by one embodiment of the utility model is shown in the figure.

[0019] Figure 2 The structure schematic view of the liquid injection mechanism provided by one embodiment of the utility model is shown in the figure.

[0020] Figure 3 The sectional view of the battery body which is installed on the battery fixture and provided by one embodiment of the utility model is shown in the figure.

[0021] The reference signs in the description are as follows:

[0022] 1, liquid injection mechanism; 11, support frame; 111, guide rail; 12, carrier plate; 121, sliding block; 13, lifting driving part; 14, liquid injection connector; 15, vacuum connector; 16, moving driving part; 17, liquid storage box; 171, liquid storage groove; 18, guide rod; 19, integrated pipe; 2, battery fixture; 21, fixture body; 211, liquid injection hole; 212, liquid storage cavity; 213, internal space; 214, first box body; 215, second box body; 216, first liquid injection nozzle; 22, valve body; 221, valve hole; 3, battery body; 31, internal cavity. DETAILED DESCRIPTION

[0023] In order to make the technical problems, technical schemes and beneficial effects solved by the utility model clearer and more apparent, the utility model will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and not used to limit the utility model.

[0024] It should be understood that the terms "upper", "lower", "left", "right", "front", "back", "middle" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the utility model and simplify the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0025] As shown in Figure 1 and Figure 3 The utility model embodiment provides a kind of liquid injection mechanism 1, for electrolyte is injected into the battery fixture 2 installed with battery body 3, it includes support frame 11, carrier plate 12, lifting driving part 13 and are installed on the liquid injection connector 14 and vacuum connector 15 of the carrier plate 12;The carrier plate 12 is slidably installed on the support frame 11, the lifting driving part 13 is installed on the support frame 11 and is connected the carrier plate 12;It can be understood that the carrier plate 12 can be slidably installed on the support frame 11 along vertical direction by guide rail sliding block assembly, guide rod sliding sleeve assembly etc.;The lifting driving part 13 includes but is not limited to pneumatic cylinder, hydraulic cylinder and linear motor etc.;The liquid injection connector 14 can be communicated with external liquid injection pump by hose, the vacuum connector 15 can be communicated with external vacuum pump by hose.

[0026] The lifting driving part 13 is used to move the liquid injection connector 14 and the vacuum connector 15 by the carrier plate 12, so that the liquid injection connector 14 is docked with the liquid injection hole 211 of the battery fixture 2, and the vacuum connector 15 is docked with the valve hole 221 of the battery fixture 2.

[0027] In the utility model, the lifting driving part 13 drives the carrier plate 12 to move downwards, the liquid injection connector 14 on the carrier plate 12 is connected with the liquid injection hole 211 of the battery fixture 2, and the vacuum connector 15 is connected with the valve hole 221 of the battery fixture 2, after the inside of the battery fixture 2 is extracted into a vacuum state by the vacuum connector 15 of the external vacuum pump, the electrolyte can be injected into the inside of the battery fixture 2 by the liquid injection connector 14 of the external liquid injection pump, since the inside of the battery fixture 2 is in a vacuum state, the liquid injection connector 14 can more easily inject the electrolyte into the battery fixture 2, thereby improving the speed and efficiency of the liquid injection connector 14 for injecting the electrolyte into the inside of the battery fixture 2.

[0028] Further, the electrolyte in the battery fixture 2 can be injected into the inner cavity 31 of the battery body 3.

[0029] In an embodiment, as shown in Figure 1 and Figure 2 The liquid injection mechanism 1 further comprises a moving driving part 16 and a liquid storage box 17 provided with a liquid storage groove 171; the moving driving part 16 is installed on the support frame 11 and connected with the liquid storage box 17, and the liquid storage groove 171 is used for storing the electrolyte dropped by the liquid injection connector 14. It can be understood that the moving driving part 16 includes but is not limited to a linear motor, an air cylinder and a hydraulic cylinder, etc.; the opening of the liquid storage groove 171 faces upwards.

[0030] Specifically, after the moving driving part 16 drives the liquid storage box 17 to avoid the liquid injection connector 14, the lifting driving part 13 drives the liquid injection connector 14 and the vacuum connector 15 to move downwards through the carrier plate 12, the liquid injection connector 14 is connected with the liquid injection hole 211 of the battery fixture 2, and the vacuum connector 15 is connected with the valve hole 221 of the battery fixture 2; when the battery fixture 2 has enough electrolyte, the lifting driving part 13 drives the liquid injection connector 14 and the vacuum connector 15 to move upwards through the carrier plate 12, the liquid injection connector 14 is separated from the liquid injection hole 211 of the battery fixture 2, that is, the vacuum connector 15 is separated from the valve hole 221 of the battery fixture 2; the moving driving part 16 drives the liquid storage box 17 to move to the position directly below the liquid injection connector 14, so that the liquid storage groove 171 of the liquid storage box 17 can receive the electrolyte dropped by the liquid injection connector 14. In the embodiment, the design of the liquid storage box 17 ensures the cleanliness of the liquid injection mechanism 1 and the battery fixture 2.

[0031] In an embodiment, as shown in Figure 1 and Figure 2As shown in the drawings, the support frame 11 is provided with a guide hole, and the liquid injection mechanism 1 further comprises a guide rod 18 installed on the liquid storage box 17, and one end of the guide rod 18 away from the liquid storage box 17 is slidingly inserted into the guide hole. Specifically, during the movement of the liquid storage box 17 driven by the movement driving member 16, the guide rod 18 slides in the guide hole. In the embodiment, the design of the guide rod 18 ensures the stability and load capacity of the movement of the liquid storage box 17.

[0032] In an embodiment, as shown in Figure 1 and Figure 2 As shown in the drawings, the liquid injection mechanism 1 further comprises a guide rail 111 installed on the support frame 11 and a sliding block 121 installed on the carrier plate 12, and the sliding block 121 is in sliding connection with the guide rail 111. It can be understood that the guide rail 111 is installed on the support frame 11 in the vertical direction, and during the movement of the carrier plate 12 driven by the lifting driving member 13, the carrier plate 12 slides on the guide rail 111 through the sliding block 121. In the embodiment, the design of the guide rail 111 and the sliding block 121 ensures the stability and load capacity of the movement of the carrier plate 12.

[0033] In an embodiment, as shown in Figure 1 and Figure 2 As shown in the drawings, the carrier plate 12 is provided with a plurality of liquid injection connectors 14 and vacuum connectors 15 distributed at intervals. It can be understood that the liquid injection connectors 14 and the vacuum connectors 15 are arranged one by one, and one liquid injection connector 14 and one vacuum connector 15 can perform vacuumizing treatment on one battery jig 2. In the embodiment, the liquid injection mechanism 1 can sequentially inject liquid into a plurality of battery jigs 2, further improving the liquid injection efficiency of the liquid injection mechanism 1.

[0034] In an embodiment, as shown in Figure 1 and Figure 2 As shown in the drawings, the liquid injection mechanism 1 further comprises an integrated pipe 19 installed on the support frame 11, and the integrated pipe 19 is connected with all the vacuum connectors 15. It can be understood that the integrated pipe 19 can be connected with all the vacuum connectors 15 through a plurality of hoses, and the integrated pipe 19 is connected with an external vacuum pump. In the embodiment, the design of the integrated pipe 19 enables a plurality of vacuum connectors 15 to share one external vacuum pump, improving the integration of the liquid injection mechanism 1.

[0035] As shown in Figure 3 The utility model discloses another embodiment further provides a battery liquid injection equipment, including battery jig 2 and above-mentioned liquid injection mechanism 1, battery jig 2 includes jig body 21 and installs on the valve body 22 of jig body 21.

[0036] The tool body 21 is provided with a liquid injection hole 211, a liquid storage cavity 212 and an internal space 213 for mounting the battery body 3, the liquid injection hole 211 is communicated with the inner cavity 31 of the battery body 3 through the liquid storage cavity 212; the valve body 22 is provided with a valve hole 221 communicated with the liquid storage cavity 212. Understandably, the liquid injection hole 211 is arranged at the top of the tool body 21, and the liquid storage cavity 212 is communicated at the top of the internal space 213.

[0037] In the utility model, the vacuum joint 15 can extract the liquid storage cavity 212 into a vacuum state through the valve hole 221; the liquid injection joint 14 can inject the electrolyte into the liquid storage cavity 212 through the liquid injection hole 211; the electrolyte in the liquid storage cavity 212 can be injected into the inner cavity 31 of the battery body 3. In the embodiment, the battery tool 2 can not only inject the electrolyte into the inner cavity 31 of the battery body 3 before standing, but also can inject the electrolyte into the inner cavity 31 of the battery body 3 after standing, so that the battery body 3 has sufficient electrolyte, and the quality of the battery body 3 is ensured.

[0038] In an embodiment, as shown in the figure, Figure 3 The tool body 21 includes a first box body 214, a second box body 215 and a first liquid injection nozzle 216; the liquid injection hole 211 and the liquid storage cavity 212 are arranged on the first box body 214, and the valve body 22 and the first liquid injection nozzle 216 are mounted on the first box body 214; Understandably, the first liquid injection nozzle 216 is mounted at the bottom of the first box body 214.

[0039] The first box body 214 is detachably mounted on the second box body 215, and the internal space 213 is arranged between the first box body 214 and the second box body 215; the first liquid injection nozzle 216 is docked with the second liquid injection nozzle of the battery body 3 in the internal space 213. Understandably, the liquid storage cavity 212 is communicated with the inner cavity 31 of the battery body 3 through the first liquid injection nozzle 216 and the second liquid injection nozzle; the first box body 214 and the second box body 215 can be connected through a buckle structure, a plug-in structure and the like.

[0040] In the embodiment, the battery tool 2 is simple in dismounting operation, and is convenient for dismounting between the battery body 3 and the battery tool 2. In addition, the vacuum joint 15 can extract the liquid storage cavity 212 and the inner cavity 31 of the battery body 3 into a vacuum state, the inner cavity 31 of the battery body 3 is in a vacuum state, and the electrolyte in the liquid storage cavity 212 is more easily flowed into the inner cavity 31 of the battery body 3 through the first liquid injection nozzle 216 and the second liquid injection nozzle.

[0041] The above is only an embodiment of the liquid injection mechanism and the battery liquid injection equipment of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement, and improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A liquid injection mechanism for injecting electrolyte into a battery fixture in which a battery body is mounted, characterized in that, It includes a support frame, a carrier plate, a lifting drive component, and a liquid injection connector and a vacuum connector, both mounted on the carrier plate; the carrier plate is slidably mounted on the support frame, and the lifting drive component is mounted on the support frame and connected to the carrier plate; The lifting drive is used to move the liquid injection connector and the vacuum connector through the carrier plate, so that the liquid injection connector aligns with the liquid injection hole of the battery fixture, and the vacuum connector aligns with the valve hole of the battery fixture.

2. The injection mechanism according to claim 1, characterized in that, The liquid injection mechanism further includes a moving drive and a liquid storage box with a liquid storage tank; the moving drive is mounted on the support frame and connected to the liquid storage box, and the liquid storage tank is used to store the electrolyte dripping from the liquid injection connector.

3. The injection mechanism according to claim 2, characterized in that, The support frame is provided with a guide hole, and the liquid injection mechanism also includes a guide rod installed on the liquid storage box, with one end of the guide rod away from the liquid storage box slidably inserted into the guide hole.

4. The injection mechanism according to claim 1, characterized in that, The injection mechanism also includes a guide rail mounted on the support frame and a slider mounted on the carrier plate, the slider being slidably connected to the guide rail.

5. The injection mechanism according to claim 1, characterized in that, The carrier plate is provided with a plurality of liquid injection connectors and vacuum connectors spaced apart.

6. The injection mechanism according to claim 5, characterized in that, The injection mechanism also includes an integrated tube mounted on the support frame, the integrated tube connecting all the vacuum connectors.

7. A battery electrolyte filling device, characterized in that, The battery fixture includes a battery jig and a liquid injection mechanism as described in any one of claims 1 to 6, wherein the battery jig includes a jig body and a valve body mounted on the jig body; The fixture body is provided with an injection hole, a storage cavity, and an internal space for installing the battery body. The injection hole is connected to the inner cavity of the battery body through the storage cavity. The valve body is provided with a valve hole that connects to the storage cavity.

8. The battery electrolyte filling device according to claim 7, characterized in that, The fixture body includes a first housing, a second housing, and a first injection nozzle; the injection hole and the liquid storage chamber are both disposed on the first housing, and the valve body and the first injection nozzle are both mounted on the first housing; The first housing is detachably mounted on the second housing, and the internal space is located between the first housing and the second housing; the first injection nozzle is connected to the second injection nozzle of the battery body located in the internal space.

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