Cylindrical battery liquid injection device

Abstract

The utility model relates to the technical field of energy storage device processing, in particular to a cylindrical battery liquid injection device which comprises a base, a battery bearing mechanism arranged on the base, a support frame arranged on the base, a liquid injection sealing mechanism connected with the support frame and a driving mechanism, the liquid injection sealing mechanism comprises a lifting plate movably connected with the supporting frame, a liquid injection assembly arranged on the top face of the lifting plate and a sealing cover connected to the bottom face of the lifting plate, and gas connectors are arranged at the positions, corresponding to the battery bearing mechanism, of the sealing cover and the position, corresponding to the sealing cover, of the base. After the sealing cover covers the base, the air inside the battery is pumped out through the air connector, so that the air inside the battery is fully exhausted, a vacuum state or a state close to the vacuum state is formed in the sealing cover, the air inside the battery is fully exhausted, and when electrolyte is injected, the electrolyte can quickly enter the battery; therefore, the battery cell fully and uniformly absorbs the electrolyte, the battery performance is ensured, and the product quality is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage device processing, in particular to a cylindrical battery liquid injection device. Background Art

[0002] A battery is an energy storage device that can store electrical energy. A battery generally refers to a cup, trough, or other container or part of a composite container that contains an electrolyte solution and a metal electrode to generate an electric current. It is a device that can convert chemical energy into electrical energy. It has a positive electrode and a negative electrode. Now it also refers to a small device that can generate electrical energy. Common energy storage batteries include lithium-ion batteries, sodium-ion batteries, lead-acid batteries, nickel-metal hydride batteries, and supercapacitors. Electrolyte is an important component of common chemical batteries. As a battery discharge medium, it provides ion conduction for the normal operation of the positive and negative electrodes. In the production and processing of lithium-ion batteries, sodium-ion batteries and other products, electrolyte needs to be injected into the battery. In the traditional process of adding electrolyte, the battery is generally transferred to the injection equipment, and then the electrolyte is injected into the battery through the injection hole on the battery. In the production process of the battery, air will inevitably exist inside the battery. During the injection process, it is difficult for the air to completely flow out of the battery, resulting in the electrolyte injection amount not meeting the design standard, which ultimately leads to reduced battery performance and affects the battery quality. In addition, the air remaining inside the battery may also affect the battery's absorption of liquid. Whether the battery's absorption of liquid is sufficient and uniform will also affect the battery performance. Utility Model Content

[0003] In order to solve the above problems, the utility model provides a cylindrical battery liquid filling device.

[0004] The utility model is implemented by the following scheme:

[0005] A cylindrical battery filling device comprises a base, a battery bearing mechanism arranged on the base, a support frame arranged on the base, a filling sealing mechanism connected to the support frame, and a driving mechanism for driving the sealing mechanism to move in a vertical direction; the filling sealing mechanism comprises a lifting plate movably connected to the support frame, a filling assembly arranged on the top surface of the lifting plate, and a sealing cover connected to the bottom surface of the lifting plate, the position of the sealing cover corresponds to the battery bearing mechanism, and the position of the base corresponding to the sealing cover is provided with an air joint; the battery bearing mechanism comprises a bearing bracket arranged on the base, a bearing seat connected to the bearing bracket, and a transition adapter assembly connected to the bearing bracket, and the transition adapter assembly is located above the bearing seat.

[0006] Furthermore, the transition adapter assembly includes a connection seat connected to the bearing bracket, and a sealing sleeve cup arranged on the connection seat, and the position of the sealing sleeve cup corresponds to the injection assembly.

[0007] Furthermore, the bearing seat is movably connected to the bearing bracket, and the base is provided with a bearing driving member for driving the bearing seat to move in a vertical direction.

[0008] Furthermore, the supporting bracket includes a plurality of columns arranged on the base and a fixing frame arranged on the top of the columns.

[0009] Furthermore, the liquid injection assembly includes a liquid injection driving member arranged on the lifting plate, and a liquid injection needle valve connected to the output end of the liquid injection driving member.

[0010] Furthermore, the lifting plate is provided with a liquid injection port for the liquid injection needle valve to pass through.

[0011] Furthermore, the cylindrical battery filling device also includes a clamping mechanism arranged on the base for clamping the closing cover, the clamping mechanism includes a clamping seat, a pressure rod rotatably connected to the clamping seat, and a handle rotatably connected to the clamping seat, and the handle is connected to the pressure rod.

[0012] Furthermore, a flange is provided on the outer periphery of the bottom of the closure cover.

[0013] Furthermore, the driving mechanism includes a fixing member connected to the support frame, and a lifting cylinder arranged on the lifting plate, and an output end of the lifting cylinder is connected to the fixing member.

[0014] Furthermore, the base is provided with a closed area, and the battery supporting mechanism and the air joint are arranged in the closed area.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] After the sealing cover of the liquid injection sealing mechanism of the utility model covers the base, the internal air is extracted through the air joint, so that the air inside the battery is fully discharged, and a vacuum or near-vacuum state is formed in the sealing cover, so that the air inside the battery is fully discharged. When the electrolyte is injected, the electrolyte can quickly enter the battery, so that the battery core fully and evenly absorbs the electrolyte, ensuring the battery performance and product quality. On the other hand, the utility model is provided with a transition adapter component, and the sealing sleeve cup of the transition adapter component contacts the battery as a transition component, which can adapt to batteries of different specifications and enhance versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model is a schematic diagram of a cylindrical battery liquid filling device.

[0018] Figure 2 It is a schematic diagram of the side view of the utility model.

[0019] Figure 3 This is a schematic diagram of the bottom perspective of the present invention.

[0020] Included in the picture are:

[0021] Base 1, support frame 11, air joint 12, closed area 13, battery bearing mechanism 2, bearing bracket 21, column 211, fixed frame 212, bearing seat 22, transition adapter assembly 23, connecting seat 231, sealing sleeve cup 232, bearing drive member 24, liquid injection sealing mechanism 3, lifting plate 31, liquid injection assembly 32, liquid injection drive member 321, liquid injection needle valve 322, closing cover 33, liquid injection port 34, flange 35, driving mechanism 4, fixing part 41, lifting cylinder 42, clamping mechanism 5, clamping seat 51, pressure rod 52, handle 53, battery 6. DETAILED DESCRIPTION

[0022] In order to facilitate those skilled in the art to understand the present invention, the present invention will be further described in detail below in conjunction with specific embodiments and drawings.

[0023] Reference Figures 1 to 3 The utility model provides a cylindrical battery liquid injection device, comprising a base 1, a battery carrying mechanism 2 arranged on the base 1, a support frame 11 arranged on the base 1, a liquid injection sealing mechanism 3 connected to the support frame 11, and a driving mechanism 4 for driving the sealing mechanism to move in a vertical direction. The battery carrying mechanism 2 is used to carry the battery. After the battery is placed in the battery carrying mechanism 2, the liquid injection sealing mechanism 3 seals the space where the battery carrying mechanism 2 is located.

[0024] The liquid injection and sealing mechanism 3 includes a lifting plate 31 movably connected to the support frame 11, a liquid injection assembly 32 arranged on the top surface of the lifting plate 31, and a sealing cover 33 connected to the bottom surface of the lifting plate 31. The position of the sealing cover 33 corresponds to the battery supporting mechanism 2, and the base 1 is provided with a gas joint 12 at a position corresponding to the sealing cover 33. In this embodiment, the sealing cover 33 is a cylindrical cover body, which contacts the base 1 under the drive of the driving mechanism 4, and seals the battery supporting mechanism 2 inside. The gas joint 12 is connected to a vacuum pump, and the air inside the sealing cover 33 can be pumped out. As the air is pumped out, the air inside the battery is also pumped out, so that a vacuum or near-vacuum state is formed in the sealing cover 33, so that when the electrolyte is injected, the electrolyte can fully enter the battery, and the battery cell can fully and evenly absorb the electrolyte.

[0025] The base 1 is provided with a closed area 13, which corresponds to the closed cover 33, and the battery supporting mechanism 2 and the gas connector 12 are provided in the closed area 13. When the closed cover 33 moves down and contacts the base 1, the closed area 13 is surrounded by the closed cover 33.

[0026] The battery supporting mechanism 2 includes a supporting bracket 21 arranged on the base 1 , a supporting seat 22 connected to the supporting bracket 21 , and a transition adapter component 23 connected to the supporting bracket 21 . The transition adapter component 23 is located above the supporting seat 22 .

[0027] The transition adapter assembly 23 includes a connection seat 231 connected to the support bracket 21, and a sealing sleeve 232 disposed on the connection seat 231, wherein the position of the sealing sleeve 232 corresponds to the injection assembly 32. A sealing ring is disposed at the bottom of the sealing sleeve 232, and a seal can be achieved after contacting the top of the battery. Since the battery has various specifications, the sealing sleeve 232 can be adapted to batteries of different sizes through the sealing ring, thereby enhancing the versatility of the injection device.

[0028] The bearing seat 22 is movably connected to the bearing bracket 21, and the base 1 is provided with a bearing driving member 24 for driving the bearing seat 22 to move in a vertical direction. The bearing driving member 24 adopts a cylinder, and when the battery is placed on the bearing seat 22, the bearing driving member 24 drives the bearing seat 22 to rise, so that the top of the battery contacts the bottom of the sealing sleeve cup 232.

[0029] The support bracket 21 includes a plurality of columns 211 disposed on the base 1 and a fixing frame 212 disposed on the top of the columns 211. In this embodiment, four columns 211 are provided, and the upper end of the sealing sleeve cup 232 passes through the fixing frame 212.

[0030] The injection assembly 32 includes an injection driving member 321 disposed on the lifting plate 31 , and an injection needle valve 322 connected to the output end of the injection driving member 321 . The lifting plate 31 is provided with an injection port 34 for the injection needle valve 322 to pass through.

[0031] The injection drive member 321 adopts a cylinder, which can drive the injection needle valve 322 to move in the vertical direction. The inner bottom of the closed cover 33 has a cup structure, and the bottom has a through hole for electrolyte to flow. The injection needle valve 322 is inserted into the through hole to close the through hole. When the closed cover 33 moves down and contacts the base 1, the bottom of the cup structure approaches the top of the closed cup.

[0032] The cylindrical battery liquid injection device also includes a clamping mechanism 5 arranged on the base 1 for clamping the closed cover 33, the clamping mechanism 5 includes a clamping seat 51, a pressure rod 52 rotatably connected to the clamping seat 51, and a handle 53 rotatably connected to the clamping seat 51, the handle 53 is connected to the pressure rod 52. The bottom periphery of the closed cover 33 is provided with a flange 35, and the end of the pressure rod 52 is provided with a clamping head corresponding to the flange 35. After the closed cover 33 contacts the base 1, the handle 53 is rotated so that the clamping head contacts the flange 35, and the closed cover 33 is clamped on the base 1 to ensure the sealing effect of the closed cover 33. In this embodiment, the clamping mechanism 5 is relatively arranged with two groups, and the closed cover 33 is clamped from both sides of the closed cover 33. In order to ensure the sealing effect during specific implementation, a sealing rubber ring can also be provided on the bottom end of the closed cover 33 or the base 1. In addition, the handle 53 can also be set to an electric mode to automatically perform the clamping and loosening actions.

[0033] The driving mechanism 4 includes a fixing member 41 connected to the support frame 11, a lifting cylinder 42 disposed on the lifting plate 31, and an output end of the lifting cylinder 42 is connected to the fixing member 41. When the output end of the lifting cylinder 42 extends, the lifting plate 31 moves upward, and the sealing cover 33 is driven to move upward; when the output end of the lifting cylinder 42 retracts, the lifting plate 31 moves downward, and the sealing cover 33 is driven to move downward. In this embodiment, two sets of driving mechanisms 4 are provided, and the two sets of driving mechanisms 4 are located on opposite sides of the lifting plate 31 to ensure the stability of the lifting plate 31 when it moves.

[0034] During the specific operation, the battery is first placed on the support seat 22, and then the sealing cover 33 moves downward until it contacts the base 1, the air inside the sealing cover 33 is extracted, and the electrolyte is injected into the cup-shaped structure of the sealing cover 33. The support seat 22 of the battery support mechanism 2 moves upward under the drive of the support drive 24, so that the top of the battery contacts the bottom of the sealing sleeve cup 232, and the top of the sealing sleeve cup 232 contacts the bottom of the cup structure of the sealing cover 33. Since the air inside the sealing cover 33 is extracted, the internal space reaches a vacuum or near-vacuum state. At this time, the injection drive 321 drives the injection needle valve 322 to move upward, opening the through hole of the cup-shaped structure of the sealing cover 33. The electrolyte enters from the through hole at the bottom of the cup-shaped structure of the sealing cover 33 under the action of air pressure, quickly passes through the sealing sleeve cup 232, and enters the battery, completing the battery injection operation. In this embodiment, only the injection process of one battery is described. In the embodiment, according to the technical idea of ​​the utility model, the injection of several batteries can also be performed at the same time.

[0035] After the sealing cover 33 of the liquid injection sealing mechanism 3 of the utility model covers the base 1, the internal air is extracted through the air joint 12, so that the air inside the battery is fully exhausted, and a vacuum or near-vacuum state is formed in the sealing cover 33, so that the air inside the battery is fully exhausted. When the electrolyte is injected, the electrolyte can quickly enter the battery, so that the battery core fully and evenly absorbs the electrolyte, ensuring the battery performance and product quality. On the other hand, the utility model is provided with a transition adapter component 23, and the sealing sleeve cup 232 of the transition adapter component 23 is in contact with the battery as a transition component, which can adapt to batteries of different specifications and enhance versatility.

[0036] In the description of the present invention, it is necessary to understand that the indicated orientation or positional relationship is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0037] In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0038] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation" 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, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] Although the utility model is described in conjunction with the above specific embodiments, it is obvious that those skilled in the art can make many substitutions, modifications and changes according to the above content. Therefore, all such substitutions, improvements and changes are included in the scope of the appended claims.

Claims

1. A cylindrical battery injection device, characterized in that: It includes a base, a battery bearing mechanism arranged on the base, a support frame arranged on the base, a liquid injection and sealing mechanism connected to the support frame, and a driving mechanism for driving the sealing mechanism to move in a vertical direction; the liquid injection and sealing mechanism includes a lifting plate movably connected to the support frame, a liquid injection component arranged on the top surface of the lifting plate, and a sealing cover connected to the bottom surface of the lifting plate, the position of the sealing cover corresponds to the battery bearing mechanism, and the position of the base corresponding to the sealing cover is provided with an air joint; the battery bearing mechanism includes a bearing bracket arranged on the base, a bearing seat connected to the bearing bracket, and a transition adapter component connected to the bearing bracket, and the transition adapter component is located above the bearing seat.

2. The cylindrical battery liquid injection device according to claim 1, characterized in that: The transition adapter assembly includes a connection seat connected to the bearing bracket, and a sealing sleeve cup arranged on the connection seat, wherein the position of the sealing sleeve cup corresponds to the injection assembly.

3. The cylindrical battery liquid injection device according to claim 2, characterized in that: The bearing seat is movably connected to the bearing bracket, and the base is provided with a bearing driving member for driving the bearing seat to move in a vertical direction.

4. The cylindrical battery liquid injection device according to claim 1, characterized in that: The bearing bracket comprises a plurality of columns arranged on the base and a fixing frame arranged on the top of the columns.

5. The cylindrical battery liquid injection device according to claim 1, characterized in that: The liquid injection assembly comprises a liquid injection driving member arranged on the lifting plate, and a liquid injection needle valve connected to the output end of the liquid injection driving member.

6. The cylindrical battery liquid injection device according to claim 5, characterized in that: The lifting plate is provided with a liquid injection port for the liquid injection needle valve to pass through.

7. The cylindrical battery liquid injection device according to claim 1, characterized in that: The cylindrical battery liquid injection device also includes a clamping mechanism arranged on the base for clamping the closing cover, the clamping mechanism includes a clamping seat, a compression rod rotatably connected to the clamping seat, and a handle rotatably connected to the clamping seat, the handle being connected to the compression rod.

8. The cylindrical battery liquid injection device according to claim 7, characterized in that: The bottom periphery of the closing cover is provided with a flange.

9. The cylindrical battery liquid injection device according to claim 1, characterized in that: The driving mechanism includes a fixing member connected to the support frame, and a lifting cylinder arranged on the lifting plate, wherein the output end of the lifting cylinder is connected to the fixing member.

10. The cylindrical battery liquid injection device according to claim 1, characterized in that: The base is provided with a closed area, and the battery supporting mechanism and the gas joint are arranged in the closed area.

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