Rapid liquid injection device

Abstract

The utility model discloses a quick liquid injection device which comprises a mounting seat, a mounting frame arranged on the mounting seat, a sealing cover arranged on the mounting frame, an injection mechanism penetrating through the sealing cover, a bearing mechanism arranged opposite to the sealing cover and a lifting driving mechanism connected with the bearing mechanism, the lifting driving mechanism drives the bearing mechanism to move in the direction close to or away from the sealing cover. The injection mechanism penetrates through the sealing cover and is integrated outside the sealing cover, only the injection section at the bottom is located in the sealing cover, compared with a traditional liquid injection device which is integrally located in a cover body, overhaul and maintenance are more convenient, after injection, the lifting driving mechanism drives the bearing groove plate to descend, a battery can be conveniently placed and taken out, and the injection efficiency is improved. And meanwhile, batch liquid injection can be realized.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid injection devices, and more specifically to a rapid liquid injection device. Background Art

[0002] With the rapid development of new energy vehicles, lithium batteries, which provide energy for cars, are gaining more and more attention. In existing lithium batteries, the electrolyte is usually liquid, and during the preparation process, the lithium battery needs to be injected. Lithium battery injection is usually the process of injecting liquid electrolyte into the battery through the injection port. The main purpose is to form ion channels, thereby ensuring that there are enough lithium ions in the lithium battery to migrate between the positive and negative electrodes during the charge and discharge process to achieve reversible circulation.

[0003] The existing injection device is operated in a fully sealed environment, and the injection tank, feeding tank, etc. are all in a sealed environment. The above arrangement is inconvenient for inspection and maintenance, and it is also very inconvenient to put in and take out the battery. In addition, the mass production efficiency of the existing device is poor. Utility Model Content

[0004] The purpose of the utility model is to provide a rapid liquid injection device to solve the technical problems existing in the above-mentioned background technology.

[0005] The technical solution of the utility model provides a rapid liquid injection device, comprising a mounting seat, a mounting frame arranged on the mounting seat, a sealing cover arranged on the mounting frame, an injection mechanism arranged through the sealing cover, a supporting mechanism arranged opposite to the sealing cover, and a lifting drive mechanism connected to the supporting mechanism, wherein the lifting drive mechanism drives the supporting mechanism to move in a direction close to or away from the sealing cover;

[0006] The supporting mechanism comprises a supporting slot plate and a supporting bracket detachably arranged in the supporting slot plate, a plurality of battery placement positions are arranged on the supporting bracket, and sealing strips are arranged on the outer periphery of the sealing cover and the supporting slot plate.

[0007] In a preferred embodiment, the support bracket includes an upper plate, a lower plate and a connecting strip connecting the upper plate and the lower plate, the upper plate is provided with a placement groove 1, the lower plate is provided with a placement groove 2, and the placement groove 1 and the placement groove 2 at corresponding positions form a battery placement position.

[0008] In a preferred embodiment, the driving mechanism includes a lifting driving cylinder disposed through the mounting seat.

[0009] In a preferred embodiment, the injection mechanism includes a liquid storage tank, a blocking mechanism and a liquid adding mechanism, the blocking mechanism extends through the liquid storage mechanism to the liquid outlet of the liquid storage tank, and the liquid adding mechanism is located outside the sealing cover.

[0010] In a preferred embodiment, the blocking mechanism includes a blocking lifting cylinder, a blocking cross bar connected to the output shaft of the blocking lifting cylinder, a blocking vertical bar arranged on the blocking cross bar, and a blocking plug arranged at the end of the blocking vertical bar.

[0011] In a preferred embodiment, the liquid adding mechanism includes an electric guide rail, a sliding frame connected to the electric guide rail, and a liquid adding module arranged on the sliding frame.

[0012] In a preferred embodiment, an air inlet pipe and an air exhaust pipe are respectively provided on both sides of the sealing cover.

[0013] In a preferred embodiment, the liquid storage tank is connected to an air intake pipe 2.

[0014] In a preferred embodiment, a locking plate is further provided on the mounting frame, a locking drive cylinder is provided on the locking plate, a locking block is connected to the locking drive cylinder, and a locking groove is provided on the side of the supporting groove plate.

[0015] The beneficial effects of the technical solution of the utility model are:

[0016] The injection mechanism is arranged through the sealing cover and integrated outside the sealing cover. Only the injection section at the bottom is located inside the sealing cover. Compared with the traditional injection device which is located as a whole inside the cover, it is more convenient for inspection and maintenance. After injection, the lifting drive mechanism drives the supporting slot plate to descend, which is convenient for the placement and removal of the battery. At the same time, the device can also achieve batch injection and rapid injection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of the utility model.

[0018] Figure 2 This is a schematic diagram of the overall structure of the utility model from another perspective.

[0019] Figure 3 This is a schematic diagram of the supporting structure of the utility model.

[0020] Figure 4 It is a cross-sectional view of the utility model.

[0021] Explanation of the reference numerals: 1 mounting seat, 2 mounting frame, 3 sealing cover, 4 supporting slot plate, 5 supporting frame, 6 upper plate, 7 lower plate, 8 connecting strip plate, 9 placement slot one, 10 placement slot two, 11 lifting drive cylinder, 12 liquid storage tank, 13 injection tube, 14 blocking lifting cylinder, 15 blocking cross bar, 16 blocking vertical bar, 17 blocking plug, 18 electric guide rail, 19 sliding frame, 20 liquid adding module, 21 intake pipe one, 22 exhaust pipe, 23 intake pipe two, 24 sealing strip, 25 locking plate, 26 locking drive cylinder, 27 locking block, 28 locking slot. DETAILED DESCRIPTION

[0022] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the sake of illustration and convenience of description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific purposes.

[0023] like Figure 1-4 As shown, the technical solution of the utility model provides a rapid liquid injection device, including a mounting seat 1, a mounting frame 2 arranged on the mounting seat 1, a sealing cover 3 arranged on the mounting frame 2, an injection mechanism arranged through the sealing cover 3, a supporting mechanism arranged opposite to the sealing cover 3, and a lifting drive mechanism connected to the supporting mechanism, wherein the lifting drive mechanism drives the supporting mechanism to move in a direction close to or away from the sealing cover 3. The supporting mechanism includes a supporting slot plate 4 and a supporting frame 5 detachably arranged in the supporting slot plate 4, a plurality of battery placement positions are arranged on the supporting frame 5, and the outer peripheries of the sealing cover 3 and the supporting slot plate 4 are both provided with sealing strips 24.

[0024] The sealing cover 3 is supported by the mounting frame 2 and is in a suspended state. The unfilled battery is supported by the supporting mechanism and moves toward the sealing cover 3 under the drive of the lifting drive mechanism until the sealing strips 24 on the two contact each other, and the sealing cover 3 and the supporting slot plate 4 form a sealed cavity. Then, the sealing cover 3 is locked by the locking mechanism, and then the liquid injection is carried out. The locking mechanism includes a locking plate 25, on which a locking drive cylinder 26 is provided, and a locking block 27 is connected to the locking drive cylinder 26. A locking groove 28 is provided on the side of the supporting slot plate 4. When the supporting slot plate 4 is sealed and connected to the sealing cover 3, the locking block 27 extends into the locking groove 28 for locking.

[0025] The injection mechanism is arranged through the sealing cover 3 and is integrated outside the sealing cover 3. Only the injection section at the bottom is located inside the sealing cover 3. Compared with the traditional injection device which is located as a whole inside the cover body, it is more convenient for inspection and maintenance. After injection, the lifting drive mechanism drives the supporting slot plate 4 to descend, which is convenient for the placement and removal of the battery. At the same time, the device can also achieve batch injection and rapid injection.

[0026] The support bracket 5 includes an upper plate 6, a lower plate 7, and a connecting strip 8 connecting the upper plate 6 and the lower plate 7. The upper plate 6 is provided with a placement groove 1 9, and the lower plate 7 is provided with a placement groove 2 10. The placement groove 1 9 and the placement groove 2 10 at corresponding positions form a battery placement position. The boundary of the lower plate 7 is adapted to the internal space size of the support groove plate 4 to avoid inaccurate placement. The support bracket 5 can be removed from the support groove plate 4 as a whole, which is convenient for placing and removing the battery. The driving mechanism includes a lifting driving cylinder 11 set through the mounting seat 1.

[0027] The injection mechanism includes a liquid storage tank 12, a blocking mechanism and a liquid adding mechanism, wherein the blocking mechanism passes through the liquid storage mechanism and extends to the liquid outlet of the liquid storage tank 12, and the liquid adding mechanism is located outside the sealing cover 3. The blocking mechanism includes a blocking lifting cylinder 14, a blocking cross bar 15 connected to the output shaft of the blocking lifting cylinder 14, a blocking vertical bar 16 arranged on the blocking cross bar 15, and a sealing plug 17 arranged at the end of the blocking vertical bar 16.

[0028] The liquid adding mechanism includes an electric guide rail 18 , a sliding frame 19 connected to the electric guide rail 18 , and a liquid adding module 20 disposed on the sliding frame 19 .

[0029] In the above scheme, the liquid adding module 20 is driven by the electric guide rail 18 to add electrolyte to multiple liquid storage tanks 12. The liquid adding module 20 is an existing structure, including a liquid storage tank, a metering pump, a liquid adding tube and other structures, and quantitatively adds liquid to the tank through the injection tube 13. The blocking mechanism can block the liquid outlet of the liquid storage tank 12, and the blocking vertical rod 16 drives the sealing plug 17 thereon to rise and fall when it rises and falls, thereby realizing the opening or closing of the liquid outlet of the liquid storage tank 12.

[0030] An air intake pipe 1 21 and an air extraction pipe 22 are respectively arranged on both sides of the sealing cover 3. An air intake pipe 23 is connected to the liquid storage tank 12.

[0031] When injecting liquid, firstly, the air in the sealed cavity is extracted through the exhaust pipe 22, so that the sealed cavity is in a negative pressure state, and then the sealing plug 17 is driven to the liquid outlet separated from the liquid storage tank 12. Under the action of the pressure difference, the electrolyte is injected into the battery from the liquid outlet. After a short period of injection, the air inlet pipe 23 is opened to make the liquid storage tank 12 in a positive pressure state to speed up the outflow of the electrolyte. The negative pressure in the cavity is maintained for about 15 minutes, and the injection is completed, and the liquid outlet is closed. Then the negative pressure pipe and the air inlet pipe 23 are closed, and the air inlet pipe 1 21 is opened. After the cavity reaches the normal pressure state, it is closed, and the normal pressure is maintained for about 15 minutes. Then the air inlet pipe 1 21 is opened to make the cavity in a positive pressure state. The purpose of normal pressure and positive pressure is to make the electrolyte and the pole piece more closely contact and infiltrate the pole piece. After the above operation is completed, the liquid storage tank 12 releases the positive pressure through the electromagnetic pressure relief valve, and the cavity releases the positive pressure by opening the exhaust pipe 22. The operation is completed and the battery can be removed.

[0032] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. Structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to conventional means in the field unless otherwise specified and limited.

Claims

1. A rapid liquid injection device, characterized in that: It comprises a mounting seat, a mounting frame arranged on the mounting seat, a sealing cover arranged on the mounting frame, an injection mechanism arranged through the sealing cover, a supporting mechanism arranged opposite to the sealing cover, and a lifting drive mechanism connected to the supporting mechanism, wherein the lifting drive mechanism drives the supporting mechanism to move in a direction close to or away from the sealing cover; The supporting mechanism comprises a supporting slot plate and a supporting bracket detachably arranged in the supporting slot plate, a plurality of battery placement positions are arranged on the supporting bracket, and sealing strips are arranged on the outer periphery of the sealing cover and the supporting slot plate.

2. A rapid liquid injection device according to claim 1, characterized in that: The support frame includes an upper plate, a lower plate and a connecting strip connecting the upper plate and the lower plate. A placement groove 1 is provided through the upper plate, and a placement groove 2 is provided on the lower plate. The placement groove 1 and the placement groove 2 at corresponding positions form a battery placement position.

3. A rapid liquid injection device according to claim 1, characterized in that: The driving mechanism includes a lifting driving cylinder disposed through the mounting seat.

4. A rapid liquid injection device according to claim 1, characterized in that: The injection mechanism comprises a liquid storage tank, a blocking mechanism and a liquid adding mechanism. The blocking mechanism passes through the liquid storage tank and extends to the liquid outlet of the liquid storage tank. The liquid adding mechanism is located outside the sealing cover.

5. A rapid liquid injection device according to claim 4, characterized in that: The blocking mechanism includes a blocking lifting cylinder, a blocking crossbar connected to the output shaft of the blocking lifting cylinder, a blocking vertical rod arranged on the blocking crossbar, and a blocking plug arranged at the end of the blocking vertical rod.

6. A rapid liquid injection device according to claim 4, characterized in that: The liquid adding mechanism comprises an electric guide rail, a sliding frame connected to the electric guide rail, and a liquid adding module arranged on the sliding frame.

7. A rapid liquid injection device according to claim 1, characterized in that: An air inlet pipe and an air exhaust pipe are respectively arranged on both sides of the sealing cover.

8. A rapid liquid injection device according to claim 4, characterized in that: The liquid storage tank is connected with an air intake pipe 2.

9. A rapid liquid injection device according to claim 1, characterized in that: The mounting frame is also provided with a locking plate, a locking driving cylinder is provided on the locking plate, a locking block is connected to the locking driving cylinder, and a locking groove is provided on the side of the supporting groove plate.

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