CN218448388U - Liquid injection clamp and liquid injection device - Google Patents

Abstract

The utility model relates to a battery production technical field specifically discloses an annotate liquid anchor clamps and priming device. The liquid injection clamp comprises a battery clamp and a cup body clamp, wherein the battery clamp comprises a die closing part and a die opening part which are arranged at intervals, and the die closing part is used for bearing a battery; the cup body clamp is provided with a liquid injection nozzle which can be butted with a battery on the mold closing part, and the cup body clamp can be selectively fixed on the mold closing part or the mold opening part. When the cup body clamp is fixed on the die opening part, the charging and discharging of the battery on the die closing part can be facilitated; when the cup body clamp is fixed on the mold closing part, the liquid injection mechanism can inject electrolyte into a battery loaded on the mold closing part through the liquid injection nozzle. By adopting the arrangement, a temporary storage mechanism is not required to be additionally arranged for temporarily storing the cup body clamp taken down from the battery clamp; in addition, in the process of transferring the cup body clamp from the die assembly part to the die opening part, electrolyte remained in the cup body clamp can be prevented from dripping to the ground, and therefore cleanliness of the ground near the liquid injection device is guaranteed.

Description

Liquid injection clamp and liquid injection device

Technical Field

The utility model relates to a battery production technical field especially relates to an annotate liquid anchor clamps and priming device.

Background

The electrolyte is a carrier for ion transmission in the battery, plays a role in conducting ions between the positive electrode and the negative electrode, and is a guarantee for the battery to obtain the advantages of high voltage, high specific energy and the like. In the production process of the battery, the electrolyte generally enters the interior of the battery through a liquid injection process, and a liquid injection clamp is generally used in the liquid injection operation. Annotate liquid anchor clamps among the prior art usually including being cup anchor clamps and the battery anchor clamps that arrange from top to bottom, enclose between cup anchor clamps and the battery anchor clamps and annotate the liquid chamber, bear the battery that remains to annotate the liquid on the battery anchor clamps, be provided with on cup anchor clamps and annotate the liquid mouth and be used for annotating the liquid cup of liquid for the battery, annotate the liquid mouth and annotate the liquid cup and all communicate with annotating the liquid chamber. The liquid injection mechanism can inject the electrolyte into the liquid injection port, and the electrolyte sequentially enters the battery after passing through the liquid injection cavity and the liquid injection cup. After the liquid injection step is completed, the cup body clamp needs to be taken down from the battery clamp by the manipulator, so that the discharging operation of the liquid-injected battery is conveniently completed; the taken-down cup body clamp is usually placed on the temporary storage mechanism of the cup body clamp, and when the temporary storage mechanism is used, the cup body clamp on the temporary storage mechanism is placed above the battery clamp by the manipulator, so that the movement stroke of the manipulator is longer, the transfer efficiency is lower, and the liquid injection efficiency of the battery is further influenced; after the liquid injection is completed, some electrolyte may remain on the cup body fixture, and in the process of transferring the cup body fixture by the manipulator, the electrolyte remaining on the cup body fixture may drip on the ground, so that the difficulty of cleaning the ground by operators is increased.

Therefore, it is desirable to provide an injection jig to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an annotate liquid anchor clamps and priming device can conveniently annotate the transfer of liquid back cup anchor clamps, avoids it to drip remaining electrolyte subaerial in the transfer process, guarantees the cleanliness on priming device near ground.

As the conception, the utility model adopts the technical proposal that:

a liquid injection jig comprising:

the battery clamp comprises a die closing part and a die opening part which are arranged at intervals, and the die closing part is used for bearing a battery;

and the cup body clamp is provided with a liquid injection nozzle which can be butted with a battery on the mold closing part, and can be selectively fixed on the mold closing part or the mold opening part.

As a preferable scheme of the liquid injection clamp, a liquid injection accommodating groove for accommodating the battery is arranged on the die closing part;

the battery clamp further comprises a liquid injection clamping assembly, and the liquid injection clamping assembly can clamp the battery in the liquid injection accommodating groove.

As a preferable scheme of the liquid injection fixture, the liquid injection accommodating groove comprises a first groove wall and a second groove wall which are oppositely arranged; the liquid injection clamping assembly comprises a clamping block and an elastic pressing piece, the clamping block is arranged in the liquid injection accommodating groove in a sliding mode, two ends of the elastic pressing piece are connected with the clamping block and the second groove wall respectively, and the battery is contained between the clamping block and the first groove wall.

As an optimal scheme of the liquid injection clamp, a first arc-shaped groove is formed in the clamping block, a second arc-shaped groove is formed in the first groove wall, and both the groove wall of the first arc-shaped groove and the groove wall of the second arc-shaped groove can be attached to the outer wall of the battery.

As an annotate preferred scheme of liquid anchor clamps, battery anchor clamps still include annotate liquid unblock subassembly, it includes ejector pad and push rod to annotate liquid unblock subassembly, the one end of push rod is worn to locate in the mould clamping portion, the ejector pad can pass annotate the tank bottom of liquid accepting groove with the push rod is connected, promotes the push rod, the ejector pad can drive the clamp splice dorsad first cell wall motion.

As a preferable scheme of the liquid injection jig, the liquid injection accommodating grooves are plural in number, the plural liquid injection accommodating grooves are arranged on the die closing part in an array, and the plural liquid injection accommodating grooves are arranged in a row along a first direction and in a row along a second direction;

the liquid injection unlocking assembly is arranged between the two adjacent rows of liquid injection accommodating grooves;

the first direction and the second direction are perpendicular to each other.

The utility model also provides an injection device, including annotating liquid mechanism and as above arbitrary scheme annotate the liquid anchor clamps, annotate liquid mechanism be configured to annotate the electrolyte in the battery that bears on the liquid anchor clamps.

As a preferable aspect of the liquid injection device, the liquid injection mechanism includes:

the liquid injection transverse driving assembly and the liquid injection mounting plate;

the liquid injection transverse driving assembly can drive the liquid injection longitudinal driving assembly to move in a horizontal plane;

annotate the liquid subassembly, annotate the output of liquid vertical drive assembly with annotate the liquid subassembly and be connected, in order to drive annotate the liquid subassembly and go up and down, annotate the liquid subassembly and can pass through annotate liquid mouth on the cup anchor clamps of annotating liquid anchor clamps pours into the electrolyte into the battery.

As a preferable scheme of the liquid injection device, the liquid injection assembly comprises:

the liquid injection supporting piece is arranged at the output end of the liquid injection longitudinal driving assembly;

the liquid injection needles are arranged on the liquid injection support at intervals;

and the liquid injection needles are communicated with the liquid injection pump.

As a preferable mode of the liquid injection device, the liquid injection mechanism further comprises a mold closing liquid receiving member, the mold closing liquid receiving member comprises a mold closing liquid receiving driving member and a mold closing liquid receiving disc, and the mold closing liquid receiving driving member can drive the mold closing liquid receiving disc to move to the lower side of the liquid injection assembly so as to receive residual liquid flowing out of the liquid injection assembly.

The utility model has the advantages that:

the utility model provides a liquid injection clamp, which comprises a battery clamp and a cup body clamp, wherein the battery clamp comprises a die closing part and a die opening part which are arranged at intervals, and the die closing part is used for bearing a battery; the cup body clamp is provided with a liquid injection nozzle which can be butted with a battery on the mold closing part, and the cup body clamp can be selectively fixed on the mold closing part or the mold opening part. When the cup body clamp is fixed on the mold opening part, the battery on the mold closing part can be conveniently charged and discharged; when the cup body clamp is fixed on the mold closing part, the liquid injection mechanism can inject electrolyte into a battery loaded on the mold closing part through the liquid injection nozzle. By adopting the arrangement, a temporary storage mechanism is not required to be additionally arranged for temporarily storing the cup body clamp taken down from the battery clamp, so that the manufacturing cost can be reduced; in addition, the cup body clamp is transferred to the mold opening part from the mold closing part, so that the electrolyte remained in the cup body clamp can be prevented from dripping to the ground, and the cleanliness of the ground near the liquid injection device is guaranteed.

The utility model also provides a liquid injection device, through applying the liquid injection clamp, the setting of a temporary storage mechanism can be omitted, the volume and the occupied area of the liquid injection device are reduced, and the utilization rate of equipment is improved; and the electrolyte remained in the cup body clamp can be prevented from dripping to the ground, so that the cleanliness of the ground near the liquid injection equipment is ensured.

Drawings

Fig. 1 is a schematic structural diagram of a liquid injection clamp provided by an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a battery clamp according to an embodiment of the present invention;

FIG. 3 is a schematic structural view of a cup holder according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a liquid injection mechanism provided in the embodiment of the present invention.

In the figure:

2-liquid injection clamp; 21-a battery clamp; 211-a mold closing part; 2111-a liquid injection containing groove; 212-a mold opening section; 213-liquid injection clamping assembly; 2131-a clamping block; 214-a priming unlocking assembly; 2141-a push block; 2142-push rod; 215-clamp locating pins; 22-cup holder; 221-liquid injection nozzle; 23-liquid injection bottom plate;

3-a liquid injection mechanism; 31-a liquid injection transverse driving assembly; 32-liquid injection mounting plate; 33-a liquid injection longitudinal drive assembly; 34-a liquid injection assembly; 341-liquid injection support; 342-a liquid injection pump; 343-liquid injection needle; 35-a liquid injection base; 36-a liquid injection guide rod; 37-a mold closing liquid receiving part; 371-compound die and receive the liquid driver; 372-clamping liquid receiving disc.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used in the orientation or positional relationship shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

In the production process of the battery, it is usually necessary to inject an electrolyte into the battery to ensure the service performance of the battery. In order to realize the automatic liquid injection process of the battery, as shown in fig. 1 to 4, the embodiment provides a liquid injection device, which includes a liquid injection clamp 2 and a liquid injection mechanism 3, wherein the liquid injection clamp 2 is used for bearing the battery to be injected, and the liquid injection mechanism 3 is used for injecting electrolyte into the battery on the liquid injection clamp 2.

The specific structure of the injection fixture 2 will be described in detail with reference to fig. 1 to 3.

As shown in fig. 1-3, the liquid injection fixture 2 includes a battery fixture 21 and a cup fixture 22, the battery fixture 21 includes a mold clamping portion 211 and a mold opening portion 212 arranged at intervals, and the mold clamping portion 211 is used for carrying a battery; the cup body holder 22 is provided with an injection nozzle 221 which can be abutted against the battery on the mold clamping portion 211, and the cup body holder 22 can be selectively fixed to the mold clamping portion 211 or the mold opening portion 212 to realize the mold clamping process or the mold opening process of the injection holder 2 correspondingly. When the cup body clamp 22 is fixed on the mold opening part 212, the charging and discharging of the battery on the mold closing part 211 can be facilitated; when the cup holder 22 is fixed to the mold clamping portion 211, the injection mechanism 3 can inject the electrolyte into the battery held by the mold clamping portion 211 through the injection nozzle 221. With this arrangement, a temporary storage mechanism for temporarily storing the cup holder 22 removed from the battery holder 21 is not additionally provided, so that the manufacturing cost can be reduced; in addition, in the process of transferring the cup body clamp 22 from the mold clamping portion 211 to the mold opening portion 212, the electrolyte remaining in the cup body clamp 22 can be prevented from dropping on the ground, and the cleanliness of the ground near the liquid injection device can be ensured.

Further, the mold clamping portion 211 is provided with a liquid injection accommodating groove 2111 for accommodating the battery; the battery clamp 21 further includes a liquid injection clamping assembly 213, and the liquid injection clamping assembly 213 can clamp the battery in the liquid injection storage groove 2111. The battery is clamped in the liquid injection containing groove 2111 by the liquid injection clamping assembly 213, so that the stability of the battery carried by the battery clamp 21 can be ensured, and the battery is prevented from shaking in the liquid injection containing groove 2111 to influence the liquid injection effect.

Specifically, the liquid injection accommodating groove 2111 includes a first groove wall and a second groove wall which are oppositely arranged; the liquid injection clamping assembly 213 comprises a clamping block 2131 and an elastic pressing piece, the clamping block 2131 is slidably disposed in the liquid injection accommodating groove 2111, two ends of the elastic pressing piece are respectively connected with the clamping block 2131 and the second groove wall, and the battery is accommodated between the clamping block 2131 and the first groove wall. Clamp splice 2131 compresses tightly the battery on first cell wall under the elastic force that the elasticity compressed tightly the piece to guarantee the battery and annotate the relative fixation between liquid anchor clamps 2, and then guarantee to annotate the liquid quality. Optionally, the elastic pressing piece is a spring, so that materials are conveniently obtained, the manufacturing cost is low, and the elastic force is large.

Optionally, the clamping block 2131 is provided with a first arc-shaped groove, the first groove wall is provided with a second arc-shaped groove, and both the groove wall of the first arc-shaped groove and the groove wall of the second arc-shaped groove can be attached to the outer wall of the battery, so as to ensure stable bearing of the battery clamp 21 on the battery.

Further, the battery clamp 21 further comprises a liquid injection unlocking assembly 214, and the liquid injection unlocking assembly 214 can release the clamping effect of the liquid injection clamping assembly 213 on the battery, so that the battery can be conveniently loaded and unloaded on the die assembly part 211.

Specifically, the liquid injection unlocking assembly 214 includes a pushing block 2141 and a pushing rod 2142, one end of the pushing rod 2142 penetrates through the mold closing portion 211, the pushing block 2141 can penetrate through the bottom of the liquid injection accommodating groove 2111 to be connected with the pushing rod 2142, the pushing rod 2142 is pushed, and the pushing block 2141 can drive the clamping block 2131 to move back to the first groove wall. By pushing the push rod 2142, the push block 2141 and the clamping block 2131 can be driven to slide relative to the liquid injection accommodating groove 2111, so that the clamping block 2131 moves in a direction away from the first groove wall, and the elastic pressing piece is compressed, so that the distance between the clamping block 2131 and the first groove wall is increased, and the charging and discharging operations of the battery on the mold closing part 211 are facilitated; after the battery is placed between the clamping block 2131 and the first groove wall, the push rod 2142 is loosened, and under the action of the elastic restoring force of the elastic pressing piece, the clamping block 2131 can move towards the direction close to the first groove wall, so that the battery is pressed on the first groove wall, the operation is simple, convenient and quick, and stable bearing of the battery can be realized.

In order to improve the liquid injection efficiency, the number of the liquid injection storage grooves 2111 is plural, the plural liquid injection storage grooves 2111 are arranged in an array on the mold closing portion 211, and the plural liquid injection storage grooves 2111 are arranged in a row along the first direction and in a line along the second direction; the first direction and the second direction are perpendicular to each other. By adopting the arrangement, the liquid injection operation of a plurality of batteries can be realized through one-time feeding, and the liquid injection effect is higher.

In this embodiment, the battery clamps 21 are each provided with four liquid injection accommodating grooves 2111, and are arranged on the mold closing portion 211 in a 2 × 2 array; two liquid injection clamping assemblies 213 arranged at intervals along the second direction are arranged in each liquid injection containing groove 2111, that is, eight batteries can be loaded on the battery clamp 21. Each liquid injection containing groove 2111 is provided with a push block 2141, the push block 2141 is located between the two clamping blocks 2131 in the liquid injection containing groove 2111 and is connected with the two clamping blocks 2131, that is, one push block 2141 can drive the two clamping blocks 2131 to slide. Preferably, the pushing blocks 2141 in each row of two liquid injection accommodating grooves 2111 can penetrate through the bottom of the corresponding liquid injection accommodating groove 2111 and are connected to the same pushing rod 2142, that is, one pushing rod 2142 is pushed, so that the two pushing blocks 2141 can be driven to move, and thus the movement of the four clamping blocks 2131 is realized.

Optionally, in this embodiment, one side of each of the two clamping blocks 2131 in each liquid injection accommodating groove 2111, which is opposite to each other, is connected to a connecting block, the pushing block 2141 has a T-shaped structure, and the pushing block 2141 of the T-shaped structure abuts against the two connecting blocks, so that the clamping block 2131 connected to the connecting block is driven by the connecting block to slide in a direction away from the first groove wall. Of course, in other embodiments, the push block 2141 may also be directly connected to the two clamp blocks 2131, which can also achieve the above-mentioned effects.

Of course, the number of the liquid injection grooves 2111 provided in the battery holder 21 and the number of the liquid injection clamping assemblies 213 provided in each liquid injection groove 2111 are not limited in this embodiment, and may be adjusted according to actual production conditions. The number of the liquid pouring nozzles 221 provided in the cup holder 22 is eight, and the eight liquid pouring nozzles 221 correspond to the eight batteries held in the battery holder 21 one by one.

Further, annotate liquid anchor clamps 2 still includes annotate liquid bottom plate 23, and battery anchor clamps 21 set up on annotating liquid bottom plate 23, and the die sinking portion 212 closely laminates with annotating between the liquid bottom plate 23, and there is the clearance between compound die portion 211 and the notes liquid bottom plate 23 to form the unblock chamber, the unblock intracavity is worn to locate by push rod 2142.

In order to ensure the stability of the clamping blocks 2131 in the sliding process, in this embodiment, first slide rails are arranged between the mold closing portion 211 and the injection bottom plate 23, the number of the first slide rails is four, the four first slide rails all extend along the first direction and are arranged at intervals along the second direction, and two clamping blocks 2131 in each row can penetrate through the bottom of the injection accommodating groove 2111 and are in sliding fit with the same first slide rail, so as to ensure the smoothness of the sliding of the clamping blocks 2131 relative to the mold closing portion 211.

Further, a second slide rail is further arranged between the mold closing portion 211 and the liquid injection bottom plate 23, the number of the second slide rails is two, the two second slide rails extend along the first direction, each second slide rail is located between the two first slide rails, the push blocks 2141 in the two liquid injection accommodating grooves 2111 in each row can penetrate through the bottoms of the liquid injection accommodating grooves 2111 and are in sliding fit on the same second slide rail, the number of the second slide rails can be reduced while the smoothness of the sliding process of the push blocks 2141 relative to the mold closing portion 211 is ensured, and the manufacturing cost is reduced.

It is understood that accurate positioning is required between the cup holder 22 and the mold clamping portion 211 or between the cup holder 22 and the mold clamping portion 212, and if there is a deviation in the position between the cup holder 22 and the mold clamping portion 211, the liquid injection nozzle 221 may not be in abutment with the battery on the mold clamping portion 211, so that the liquid injection mechanism 3 cannot accurately inject the electrolyte into the battery; if the position between the cup holder 22 and the mold opening part 212 is deviated, the cup holder 22 may block the liquid injection groove 2111 of the mold closing part 211, and the battery may interfere with the cup holder 22 during charging and discharging. To solve this problem, in the present embodiment, the clamp positioning pins 215 are provided on both the mold clamping portion 211 and the mold opening portion 212, and the clamp positioning holes are provided on the cup clamp 22, so that when the cup clamp 22 is positioned on the mold clamping portion 211 or the mold opening portion 212, the clamp positioning pins 215 and the clamp positioning holes can be engaged with each other, thereby achieving accurate positioning between the cup clamp 22 and the mold clamping portion 211 or between the cup clamp 22 and the mold opening portion 212.

Further, the mold opening part 212 is provided with an injection cleaning cloth. After the battery on the mold closing part 211 finishes injecting liquid, the cup body fixture 22 needs to be transferred to the mold opening part 212, and at this time, residual electrolyte still exists in the cup body fixture 22, and the liquid injection cleaning cloth is arranged on the mold opening part 212, so that the mold opening part 212 can be prevented from being polluted by the electrolyte, and the cleanness of the mold opening part 212 is ensured. In this embodiment, annotate liquid cleaning cloth and be the non-woven fabrics, clean effect is better, and manufacturing cost is lower.

The specific structure of the liquid injection mechanism 3 will be described in detail with reference to fig. 4.

As shown in fig. 4, the liquid injection mechanism 3 includes a liquid injection transverse driving assembly 31, a liquid injection mounting plate 32, a liquid injection longitudinal driving assembly 33 and a liquid injection assembly 34, the liquid injection transverse driving assembly 31 is used for driving the liquid injection mounting plate 32 to move along a first direction, the liquid injection longitudinal driving assembly 33 is arranged on the liquid injection mounting plate 32, an output end of the liquid injection longitudinal driving assembly 33 is connected with the liquid injection assembly 34, and the liquid injection assembly 34 can inject the electrolyte into the battery through a liquid injection nozzle 221 on the cup clamp 22.

Specifically, annotate liquid mechanism 3 still includes annotating liquid base 35, annotates liquid horizontal drive assembly 31 including annotating liquid horizontal cylinder and catch bar, the catch bar slides and sets up on annotating liquid base 35 to be connected with annotating liquid mounting panel 32, annotate liquid horizontal cylinder and can drive the catch bar and annotate liquid base 35 relatively and slide. Wherein, annotate the output of liquid horizontal cylinder and can be connected or not be connected with the catch bar. In the present embodiment, the filling longitudinal driving assembly 33 is a filling longitudinal cylinder.

Further, the liquid injection assembly 34 includes a liquid injection support 341, a liquid injection needle 343 and a liquid injection pump 342, the liquid injection needle 343 is disposed at an output end of the liquid injection longitudinal driving assembly 33 through the liquid injection support 341, and the liquid injection pump 342 is communicated with the liquid injection needle 343 to provide electrolyte for the liquid injection needle 343. Preferably, the number of the injection needles 343 is plural, and the plural injection needles 343 are disposed at intervals on the injection support 341. The plurality of liquid injection needles 343 can work simultaneously to inject liquid into the plurality of batteries, and the liquid injection efficiency is high. In this embodiment, the number of the injection needles 343 is four, and the injection mechanism 3 can inject the electrolyte into four cells at one time. Of course, in other embodiments, the number of the injection needles 343 may also be adjusted according to actual situations, which is not limited in this embodiment.

It should be noted that the number of the liquid injection pumps 342 may be one, in this case, a plurality of liquid injection needles 343 are commonly connected to one liquid injection pump 342; the number of the liquid injection pumps 342 can also be equal to the number of the liquid injection needles 343, and each liquid injection needle 343 can be communicated with one liquid injection pump 342.

Further, annotate liquid mechanism 3 and still include annotating liquid guide bar 36, be provided with on the notes liquid base 35 and annotate the liquid guiding hole, annotate the one end of liquid guide bar 36 and annotate liquid mounting panel 32 fixed connection, the other end wears to locate in annotating the liquid guiding hole and can slide rather than the slip. By arranging the liquid injection guide rod 36, the liquid injection mounting plate 32 can be guided to move in the horizontal direction, and the stability of the moving process of the liquid injection mounting plate is ensured. Optionally, the number of the liquid injection guide rods 36 is multiple, a plurality of liquid injection guide rods 36 are arranged around the push rod, and each liquid injection guide rod 36 corresponds to one liquid injection guide hole.

Further, the liquid injection mechanism 3 further includes a mold clamping liquid receiving member 37, and the mold clamping liquid receiving member 37 is configured to receive residual liquid flowing out of the liquid injection unit 34. Specifically, the mold clamping liquid receiving part 37 comprises a mold clamping liquid receiving driver 371 and a mold clamping liquid receiving disc 372, the mold clamping liquid receiving driver 371 is arranged on the liquid injection base 35, and an output end of the mold clamping liquid receiving driver 371 is connected with the mold clamping liquid receiving disc 372 to drive the mold clamping liquid receiving disc 372 to move towards a direction close to or away from the liquid injection assembly 34.

Specifically, the work flow of the liquid injection mechanism 3 is as follows: (1) The injection transverse driving assembly 31 drives the injection assembly 34 to move to a position where the four injection needles 343 are positioned right above four injection nozzles 221 on the injection fixture 2 through the injection mounting plate 32; (2) The liquid injection longitudinal driving assembly 33 drives the liquid injection assembly 34 to move downwards until the liquid injection needle 343 extends into the corresponding liquid injection nozzle 221 so as to inject liquid into the corresponding battery; (3) After the battery pack finishes liquid injection, the liquid injection longitudinal driving assembly 33 drives the liquid injection assembly 34 to move upwards for a preset distance, and the mold closing liquid receiving driving member 371 drives the mold closing liquid receiving disc 372 to move to the position right below the liquid injection assembly 34 so as to receive residual liquid flowing out of the liquid injection assembly 34; (4) The injection transverse driving assembly 31 drives the injection assembly 34 to move to a position where the four injection needles 343 are positioned right above the other four injection nozzles 221 on the injection fixture 2 through the injection mounting plate 32; (5) The matched-die liquid receiving driving part 371 drives the matched-die liquid receiving disc 372 to reset, and the liquid injection longitudinal driving component 33 drives the liquid injection component 34 to move downwards until the liquid injection needle 343 extends into the corresponding liquid injection nozzle 221 so as to inject liquid into the corresponding battery; (6) And (4) after the liquid injection operation of the battery pack is finished, executing the step (3).

The above embodiments have been described only the basic principles and features of the present invention, and the present invention is not limited by the above embodiments, and is not departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (10)

1. A liquid injection clamp is characterized by comprising:

the battery clamp (21) comprises a die assembly part (211) and a die opening part (212) which are arranged at intervals, wherein the die assembly part (211) is used for bearing a battery;

the cup body fixture (22) is provided with a liquid injection nozzle (221) which can be abutted to a battery on the mold closing part (211), and the cup body fixture (22) can be selectively fixed on the mold closing part (211) or the mold opening part (212).

2. The liquid injection clamp according to claim 1, wherein the mold closing part (211) is provided with a liquid injection accommodating groove (2111) for accommodating the battery;

the battery clamp (21) further comprises a liquid injection clamping assembly (213), and the liquid injection clamping assembly (213) can clamp the battery in the liquid injection containing groove (2111).

3. The injection fixture of claim 2, wherein the injection housing groove (2111) comprises a first groove wall and a second groove wall that are oppositely disposed; the liquid injection clamping assembly (213) comprises a clamping block (2131) and an elastic pressing piece, the clamping block (2131) is arranged in the liquid injection containing groove (2111) in a sliding mode, two ends of the elastic pressing piece are respectively connected with the clamping block (2131) and the second groove wall, and the battery is contained between the clamping block (2131) and the first groove wall.

4. The liquid injection clamp according to claim 3, wherein the clamp block (2131) is provided with a first arc-shaped groove, the first groove wall is provided with a second arc-shaped groove, and both the groove wall of the first arc-shaped groove and the groove wall of the second arc-shaped groove can be attached to the outer wall of the battery.

5. The liquid injection fixture according to claim 3, wherein the battery fixture (21) further comprises a liquid injection unlocking assembly (214), the liquid injection unlocking assembly (214) comprises a push block (2141) and a push rod (2142), one end of the push rod (2142) is inserted into the mold closing portion (211), the push block (2141) can penetrate through the bottom of the liquid injection accommodating groove (2111) and is connected with the push rod (2142) to push the push rod (2142), and the push block (2141) can drive the clamping block (2131) to move back to the first groove wall.

6. The liquid injection jig according to claim 5, wherein the liquid injection housing grooves (2111) are plural in number, the plural liquid injection housing grooves (2111) are arranged in an array on the mold closing portion (211), and the plural liquid injection housing grooves (2111) are arranged in a row in a first direction and in a row in a second direction;

the liquid injection unlocking assembly (214) is arranged between the liquid injection containing grooves (2111) of two adjacent rows;

the first direction and the second direction are perpendicular to each other.

7. Priming device, characterized in that it comprises a priming mechanism (3) and a priming fixture according to any one of claims 1 to 6, said priming mechanism (3) being configured to inject electrolyte into a battery carried on said priming fixture.

8. Priming device according to claim 7, characterized in that the priming mechanism (3) comprises:

the liquid injection transverse driving assembly (31) and the liquid injection mounting plate (32);

the liquid injection longitudinal driving assembly (33) is arranged on the liquid injection mounting plate (32), and the liquid injection transverse driving assembly (31) can drive the liquid injection longitudinal driving assembly (33) to move along a first direction;

annotate liquid subassembly (34), annotate the output of the vertical drive assembly of notes (33) with it is connected to annotate liquid subassembly (34), in order to drive annotate liquid subassembly (34) and go up and down, annotate liquid subassembly (34) can pass through annotate liquid mouth (221) on the cup anchor clamps (22) of annotating the liquid anchor clamps and annotate the electrolyte in to the battery.

9. The priming device of claim 8, wherein the priming assembly (34) comprises:

the liquid injection supporting piece (341) is arranged at the output end of the liquid injection longitudinal driving component (33);

a plurality of liquid injection needles (343), the plurality of liquid injection needles (343) being disposed on the liquid injection support (341) at intervals;

and the liquid injection needles (343) are communicated with the liquid injection pump (342).

10. The liquid injection device according to claim 8, wherein the liquid injection mechanism (3) further comprises a clamping liquid receiving member (37), the clamping liquid receiving member (37) comprises a clamping liquid receiving driver (371) and a clamping liquid receiving disc (372), and the clamping liquid receiving driver (371) can drive the clamping liquid receiving disc (372) to move to the lower side of the liquid injection assembly (34) so as to receive residual liquid flowing out of the liquid injection assembly (34).

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