阅读说明：本技术 一种电解液的分液装置和注液装置 (Liquid separating device and liquid injecting device for electrolyte ) 是由 许坤 王伟 杨文琪 孙勇丽 汪涛 于 2019-11-12 设计创作，主要内容包括：本发明公开了一种电解液的分液装置和注液装置,电解液的分液装置包括连接座、进液接头件和出液接头件,连接座的相对两侧上分别设有进液孔和至少两个出液孔,进液孔与每个出液孔均相连通,进液接头件的一端与连接座相连,进液接头件的流入孔与进液孔相连通,另一端适于与注液泵相连,出液接头件为至少两个,每个出液接头件的一端与连接座相连,另一端适于与一个注液针相连,出液接头件的流出孔与出液孔相连通。该分液装置的制造成本较低且节约了生产线空间。(The invention discloses a liquid separating device and a liquid injecting device for electrolyte, wherein the liquid separating device for the electrolyte comprises a connecting seat, a liquid inlet joint piece and a liquid outlet joint piece, wherein the two opposite sides of the connecting seat are respectively provided with a liquid inlet hole and at least two liquid outlet holes, the liquid inlet hole is communicated with each liquid outlet hole, one end of the liquid inlet joint piece is connected with the connecting seat, the inflow hole of the liquid inlet joint piece is communicated with the liquid inlet hole, the other end of the liquid inlet joint piece is suitable for being connected with a liquid injecting pump, the number of the liquid outlet joint pieces is at least two, one end of each liquid outlet joint piece is connected with the connecting seat, the other end of each liquid outlet joint piece is. The liquid separating device is low in manufacturing cost and saves the space of a production line.)

1. A liquid separating device for electrolyte is characterized by comprising:

the liquid discharging device comprises a connecting seat (1), wherein a liquid inlet hole and at least two liquid outlet holes are respectively formed in two opposite sides of the connecting seat (1), and the liquid inlet hole is communicated with each liquid outlet hole;

the liquid inlet joint piece (2), one end of the liquid inlet joint piece (2) is connected with the connecting seat (1), the other end of the liquid inlet joint piece is suitable for being connected with a liquid injection pump, and the inflow hole of the liquid inlet joint piece (2) is communicated with the liquid inlet hole;

go out liquid joint spare (3), go out liquid joint spare (3) and be at least two, every go out the one end of liquid joint spare (3) with connecting seat (1) links to each other, and the other end is suitable for and annotates liquid needle and link to each other, go out the outflow hole of liquid joint spare (3) with go out the liquid hole and be linked together.

2. The device for separating electrolytes according to claim 1, wherein the connecting base (1) comprises two housings (11), the two housings (11) are detachably connected, and two opposite end surfaces of the two housings (11) are provided with two corresponding accommodating grooves (12), the two accommodating grooves (12) can form an accommodating cavity, and the accommodating cavity is communicated with the liquid inlet and the liquid outlet.

3. The device for separating electrolyte according to claim 2, further comprising two support plates (4), wherein the two support plates (4) are respectively connected to two ends of the connecting base (1) to close two ends of the accommodating cavity.

4. The apparatus for dispensing an electrolyte according to claim 3, further comprising a sealing strip disposed around the receiving chamber, the inlet hole and the outlet hole for sealing the receiving chamber to form a space communicating with the inlet hole and the outlet hole.

5. The device for distributing electrolytes according to claim 4, wherein the sealing strips comprise a first sealing strip (51), a second sealing strip (52), a third sealing strip (53) and a fourth sealing strip (54), the first sealing strip (51) is arranged in a first sealing groove (23) on one end of the liquid inlet joint piece (2) facing the liquid inlet hole; two first half grooves are formed in each shell (11), the two first half grooves are respectively communicated with the first sealing groove (23), the first half grooves in the two shells (11) are correspondingly arranged to form two first matching grooves, two second sealing strips (52) are respectively arranged in the two first matching grooves, one ends of the two second sealing strips (52) are abutted against the first sealing strips (51), and the other ends of the two second sealing strips are abutted against the supporting plate (4); the third sealing strip (53) is arranged in a second sealing groove (33) at one end of each liquid outlet joint piece (3) facing the liquid outlet hole; every be equipped with a plurality of second half grooves on casing (11), every the at least one end in second half groove with one second seal groove (33) link to each other, two on casing (11) the second half groove correspondence sets up in order to become a plurality of second cooperation grooves, every be equipped with in the second cooperation groove fourth sealing strip (54), the one end of fourth sealing strip (54) is only supported third sealing strip (53), and the other end is only supported on backup pad (4).

6. The device for separating electrolyte according to claim 1, wherein a first mounting groove (13) is provided on the connecting base (1), the liquid inlet hole is located on the first mounting groove (13), a second mounting groove (14) is provided on the connecting base (1), and the liquid outlet hole is located on the second mounting groove (14).

7. The electrolyte solution distributing device according to claim 6, wherein the liquid inlet joint piece (2) comprises a liquid inlet joint (21) and a first boss (22), and the first boss (22) is sleeved at one end of the liquid inlet joint (21) and is connected with the first mounting groove (13); the liquid outlet joint piece (3) comprises a liquid outlet joint (31) and a second boss (32), wherein the second boss (32) is sleeved at one end of the liquid outlet joint (31) and the second mounting groove (14) is connected.

8. The electrolyte solution separating device according to claim 7, wherein the liquid inlet joint (21) comprises a first joint (211) and a plurality of first protrusions (212), and the plurality of first protrusions (212) are arranged at intervals in parallel on one end of the first joint (211).

9. The electrolyte solution separating device according to claim 7, wherein the liquid outlet joint (31) comprises a plurality of second joints (311) and a plurality of second protrusions (312), and the plurality of second protrusions (312) are arranged at intervals in parallel on one end of the second joints (311).

10. An electrolyte injection device, which is characterized by comprising the electrolyte dividing device, an injection pump and an injection needle of any one of claims 1 to 9, wherein one end of the electrolyte dividing device is suitable for being connected with the injection pump, the other end of the electrolyte dividing device is suitable for being connected with a plurality of injection needles, each injection needle is suitable for being connected with one battery cell, and a partition valve membrane is arranged on each injection needle.

Technical Field

The invention relates to the technical field of liquid injection, in particular to a liquid separating device and a liquid injection device for electrolyte.

Background

Along with the continuous development of scientific technology, more and more electronic equipment enters into people's life and work, and these electronic equipment all need assemble the battery, and soft packet of polymer battery has multiple advantages such as small, light in weight, energy ratio high, security height, design flexibility, and the specially adapted these portable equipment, and this kind of polymer battery generally has an electric core, and with plastic-aluminum membrane dashing the hole and being used for holding electric core, then encapsulate processes such as liquid and tailor electric core. The traditional liquid injection structure is that one liquid injection pump corresponds to one liquid injection needle, and one liquid injection needle corresponds to one battery cell for liquid injection, obviously, the working efficiency is low; in order to improve the production efficiency, a plurality of liquid injection pumps and a plurality of liquid injection needles are often arranged on a production line at the same time to inject liquid into a plurality of electric cores, and then a large amount of production line space is occupied, and the manufacturing cost is higher.

Disclosure of Invention

One purpose of the invention is to provide a liquid separating device for electrolyte, which has low manufacturing cost and saves the space of a production line.

Another object of the present invention is to provide an electrolyte injection device, which is low in manufacturing cost and saves production line space.

In order to achieve the purpose, the invention adopts the following technical scheme:

a liquid separating device for electrolyte comprises a connecting seat, a liquid inlet joint piece and a liquid outlet joint piece, wherein a liquid inlet hole and at least two liquid outlet holes are respectively formed in two opposite sides of the connecting seat, and the liquid inlet hole is communicated with each liquid outlet hole; one end of the liquid inlet joint piece is connected with the connecting seat, the other end of the liquid inlet joint piece is suitable for being connected with a liquid injection pump, and an inflow hole of the liquid inlet joint piece is communicated with the liquid inlet hole; the liquid outlet joint pieces are at least two, one end of each liquid outlet joint piece is connected with the connecting seat, the other end of each liquid outlet joint piece is suitable for being connected with one liquid injection needle, and the outflow hole of each liquid outlet joint piece is communicated with the liquid outflow hole.

Optionally, the connecting seat includes two casings, two casing detachably connects and two the relative terminal surface of casing is equipped with two corresponding holding tanks, two the holding tank can form one and hold the chamber, hold the chamber with the feed liquor hole with it is linked together to go out the liquid hole.

Optionally, the liquid separating device for the electrolyte further comprises two supporting plates, and the two supporting plates are respectively connected to two ends of the connecting seat to seal two ends of the accommodating cavity.

Optionally, the electrolyte solution distribution device further comprises a sealing strip, the sealing strip is arranged around the containing cavity, the inflow hole and the outflow hole and used for sealing the containing cavity to form a space communicated with the liquid inlet hole and the liquid outlet hole.

Optionally, the sealing strips include a first sealing strip, a second sealing strip, a third sealing strip and a fourth sealing strip, and the first sealing strip is arranged in a first sealing groove at one end of the liquid inlet joint piece facing the liquid inlet hole; two first half grooves are formed in each shell, the two first half grooves are respectively communicated with the first sealing grooves, the first half grooves in the two shells are correspondingly arranged to form two first matching grooves, two second sealing strips are respectively arranged in the two first matching grooves, one end of each of the two second sealing strips abuts against the corresponding first sealing strip, and the other end of each of the two second sealing strips abuts against the corresponding supporting plate; the third sealing strip is arranged in a second sealing groove at one end of each liquid outlet joint piece facing the liquid outlet hole; every be equipped with half groove of a plurality of seconds on the casing, every half groove of second at least one end with one the second seal groove links to each other, two on the casing half groove of second corresponds the setting in order to become a plurality of second cooperation grooves, every be equipped with in the second cooperation groove the fourth sealing strip, the one end of fourth sealing strip is only supported third sealing strip, the other end is only supported in the backup pad.

Optionally, a first mounting groove is formed in the connecting seat, the liquid inlet hole is located in the first mounting groove, a second mounting groove is formed in the connecting seat, and the liquid outlet hole is located in the second mounting groove.

Optionally, the liquid inlet joint piece comprises a liquid inlet joint and a first boss, and the first boss is sleeved at one end of the liquid inlet joint and connected with the first mounting groove; the liquid outlet joint piece comprises a liquid outlet joint and a second boss, the second boss is sleeved at one end of the liquid outlet joint, and the second mounting groove is connected with the second boss.

Optionally, the liquid inlet joint comprises a first joint and a first protruding portion, the first protruding portion is multiple, and the first protruding portion is parallelly arranged at an interval and sleeved at one end of the first joint.

Optionally, the liquid outlet joint comprises a plurality of second joints and a plurality of second protrusions, and the plurality of second protrusions are parallelly and alternately sleeved at one end of each second joint.

Compared with the prior art, the liquid separating device for the electrolyte has the advantages that: be equipped with feed liquor hole and two at least liquid holes on the relative both sides of connecting seat respectively, the one end of feed liquor piecing links to each other with the connecting seat, the other end links to each other with the priming pump, the influent stream hole and the feed liquor hole of feed liquor piecing are linked together, go out liquid piecing and be two at least, the one end of every play liquid piecing links to each other with the connecting seat, the other end links to each other with a notes liquid needle, every notes liquid needle links to each other with an electric core, the effluent stream hole and the liquid hole of going out liquid piecing are linked together, thereby realized using a priming pump to correspond two at least play liquid needles, every notes liquid is to corresponding an electric core, the production line.

The utility model provides a priming device of electrolyte, includes liquid device, infusion pump and the notes liquid needle of dividing of electrolyte, the one end of the liquid device of electrolyte is suitable for and links to each other with the infusion pump, and the other end is suitable for and links to each other with a plurality of notes liquid needles, every it is suitable for and links to each other with an electricity core to annotate the liquid needle, it is equipped with the partition valve membrane on the liquid needle to annotate.

Compared with the prior art, the electrolyte injection device has the beneficial effects that: the injection device of this electrolyte's manufacturing cost is lower and practiced thrift the production line space, in addition, annotates and is equipped with the partition valve membrane on the liquid needle, opens the partition valve membrane when one of them liquid needle of annotating, and other liquid needles of annotating close the partition valve membrane to make electrolyte once can only flow out to electric core from one annotate the liquid needle, guaranteed the required electrolyte solution volume of electric core to a certain extent.

Drawings

FIG. 1 is a schematic structural diagram of a liquid separation device for an electrolyte according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of a device for separating electrolyte according to an embodiment of the present invention, with a casing disassembled;

FIG. 3 is an enlarged schematic view of FIG. 2 labeled C;

FIG. 4 is a schematic structural view of a device for separating electrolyte according to an embodiment of the present invention, with a casing disassembled;

FIG. 5 is a schematic structural view of a liquid separating device for an electrolyte according to an embodiment of the present invention, in which an inlet joint member is disassembled;

FIG. 6 is an enlarged schematic view of FIG. 4 labeled A;

FIG. 7 is a schematic structural view of an electrolyte solution distributing device according to an embodiment of the present invention, when a liquid outlet joint member is disassembled;

FIG. 8 is an enlarged schematic view of FIG. 6 labeled B;

fig. 9 is an exploded view of an inlet joint piece and an outlet joint piece of the electrolyte liquid separating device according to the embodiment of the invention.

Reference numerals:

the connecting seat is characterized by comprising a connecting seat-1, a shell-11, a containing groove-12, a first mounting groove-13 and a second mounting groove-14; a first mating groove-15; a second mating groove-16;

a liquid inlet joint piece-2, a liquid inlet joint-21, a first joint-211, a first bulge-212, a first boss-22 and a first sealing groove-23;

a liquid outlet joint piece-3, a liquid outlet joint-31, a second joint-311, a second bulge-312, a second boss-32 and a second sealing groove-33;

a support plate-4;

a first sealing strip-51, a second sealing strip-52, a third sealing strip-53 and a fourth sealing strip-54.

Detailed Description

In order to make the technical problems solved, the technical solutions adopted and the technical effects achieved by the present invention clearer, the technical solutions of the present invention are further described below by way of specific embodiments with reference to the accompanying drawings.

A liquid separation device for an electrolyte according to an embodiment of the present invention will be described below with reference to fig. 1 to 9.

As shown in fig. 1, the liquid separating device of the electrolyte comprises a connecting seat 1, a liquid inlet joint piece 2 and a liquid outlet joint piece 3, wherein a liquid inlet hole and at least two liquid outlet holes are respectively arranged on two opposite sides of the connecting seat 1, the liquid inlet hole is communicated with each liquid outlet hole, one end of the liquid inlet joint piece 2 is connected with the connecting seat 1, the other end of the liquid inlet joint piece is suitable for being connected with a liquid injection pump, and an inflow hole of the liquid inlet joint piece 2 is communicated with the liquid inlet hole; the liquid outlet joint pieces 3 are at least two, one end of each liquid outlet joint piece 3 is connected with the connecting seat 1, the other end of each liquid outlet joint piece 3 is suitable for being connected with one liquid injection needle, and the outflow hole of each liquid outlet joint piece 3 is communicated with the liquid outflow hole.

It can be understood that, because be equipped with feed liquor hole and two at least liquid holes on the relative both sides of connecting seat 1 respectively, the one end of feed liquor connector 2 links to each other with connecting seat 1, the other end links to each other with the priming pump, the influent stream hole and the feed liquor hole of feed liquor connector 2 are linked together, go out liquid connector 3 and be two at least, the one end of every play liquid connector 3 links to each other with connecting seat 1, the other end links to each other with a notes liquid needle, every notes liquid needle links to each other with an electric core, the outflow hole and the liquid hole of going out liquid connector 3 are linked together, thereby realized using a priming pump to correspond two at least liquid needles, every notes liquid is to corresponding an electric core, the quantity of priming pump has been reduced, the production. Meanwhile, the manufacturing cost is reduced, and the working efficiency is improved.

It should be added that a partition valve membrane is arranged on the liquid outlet needle and is used for controlling the electrolyte to flow into the battery cell. Before electrolyte is injected into from the liquid inlet hole to flow out of the liquid outlet hole at the liquid injection pump, a partition valve film on one of the liquid injection needles is opened, and partition valve films on other liquid injection needles are closed, so that the electrolyte can only flow out of the liquid injection needle for opening the partition valve film to the battery cell at each time, and the electrolyte amount required by each battery cell is ensured.

Optionally, as shown in fig. 2, the connecting seat 1 includes two housings 11, the two housings 11 are detachably connected, and two opposite end surfaces of the two housings 11 are provided with two corresponding accommodating grooves 12, the two accommodating grooves 12 can form an accommodating cavity, and the accommodating cavity is communicated with the liquid inlet hole and the liquid outlet hole.

It should be noted that, two terminal surfaces that casing 11 is relative are equipped with two corresponding holding tanks 12, and two holding tanks 12 form one and hold the chamber and be linked together with the feed liquor hole for electrolyte can flow in and store in holding the intracavity from the feed liquor hole, owing to hold the chamber and also be linked together with going out the liquid hole, makes electrolyte also can flow out from going out the liquid hole. In addition, the two housings 11 are detachably connected, which helps to clean the electrolyte remaining in the two housing tanks 12 for the next use.

Optionally, as shown in fig. 1, the liquid separating device for the electrolyte further includes two support plates 4, where the two support plates 4 are respectively connected to two ends of the connecting seat 1 to close two ends of the accommodating cavity.

It should be noted that, backup pad 4 is connected respectively at the both ends of connecting seat 1, firstly plays the effect of supporting connecting seat 1, and secondly two backup pads 4 seal the both ends that hold the chamber to avoided electrolyte to a certain extent to spill from the both ends that hold the chamber, influence the normal use of dividing the liquid device of electrolyte.

Optionally, the liquid separating device for the electrolyte further comprises a sealing strip, wherein the sealing strip surrounds the accommodating cavity, the inflow hole and the outflow hole, and is used for sealing the accommodating cavity to form a space communicated with the liquid inlet hole and the liquid outlet hole.

It can be understood that since the sealing strip is disposed around the accommodating cavity, the electrolyte is prevented from leaking out of the gap where the two housings 11 are connected; in addition, the sealing strip is arranged around the inflow hole in a surrounding manner, so that the electrolyte is prevented from leaking from a gap between the connecting seat 1 and the liquid inlet connector 2; the sealing strip has avoided electrolyte to spill from the gap that connecting seat 1 and play liquid connector 3 are connected around setting up around the outflow hole, simultaneously, has still guaranteed to hold the chamber and can be linked together with feed liquor hole and play liquid hole.

Alternatively, as shown in fig. 2, 3 and 4, the sealing strips include a first sealing strip 51, a second sealing strip 52, a third sealing strip 53 and a fourth sealing strip 54, the first sealing strip 51 is arranged in the first sealing groove 23 on the end of the inlet fitting 2 facing the inlet hole; each shell 11 is provided with two first half grooves which are respectively communicated with the first sealing grooves 23, the first half grooves on the two shells 11 are correspondingly arranged to form two first matching grooves 15, two second sealing strips 52 are respectively arranged in the two first matching grooves 15, one ends of the two second sealing strips 52 are abutted against the first sealing strips 51, and the other ends of the two second sealing strips 52 are abutted against the supporting plate 4; a third sealing strip 53 is arranged in the second sealing groove 33 at the end of each outlet connector piece 3 facing the outlet hole; each shell 11 is provided with a plurality of second half grooves, at least one end of each second half groove is connected with one second sealing groove 33, the second half grooves on the two shells 11 are correspondingly arranged to form a plurality of second matching grooves 16, each second matching groove 16 is internally provided with a fourth sealing strip 54, one end of each fourth sealing strip 54 is abutted against the third sealing strip 53, and the other end of each fourth sealing strip 54 is abutted against the support plate 4.

It can be understood that, as shown in fig. 9, the first sealing strip 51 is provided on the first sealing groove 23 at the end of the liquid inlet joint element 2 facing the liquid inlet hole, so as to prevent the electrolyte from leaking out from the gap between the connecting base 1 and the liquid inlet joint element 2; the third sealing strip 53 is disposed in the second sealing groove 33 at the end of each liquid outlet connector 3 facing the liquid outlet hole, so as to prevent the electrolyte from leaking out of the gap between the connecting seat 1 and the liquid outlet connector 3. As shown in fig. 3, the two first fitting grooves 15 of the housing 11 are respectively provided with two second sealing strips 52, one end of each of the two second sealing strips 52 is abutted against the first sealing strip 51, and the other end is abutted against the support plate 4. Thus, the second sealing tape 52 can prevent the electrolyte from leaking out of the gap between the two cases 11. One end of the second sealing strip 52 is stopped against the first sealing strip 51, so that the electrolyte is prevented from leaking out of the gap between the liquid inlet joint 2 and the shell 11. The one end of the second sealing strip 52 is stopped against the support plate 4, so that the electrolyte can be prevented from leaking out from the gap between the housing 11 and the support plate 4.

As shown in fig. 3, a fourth sealing strip 54 is provided in each second matching groove 16 of the housing 11, one end of the fourth sealing strip 54 abuts against the third sealing strip 53, and the other end abuts against the support plate 4, so that the fourth sealing strip 54 can prevent the electrolyte from leaking out of the gap between the two housings 11. One end of the fourth sealing strip 54 is stopped against the third sealing strip 53, so that the electrolyte is prevented from leaking out of the gap between the liquid outlet joint 31 and the shell 11. The one end of the fourth sealing strip 54 is stopped against the support plate 4, so that the electrolyte can be prevented from leaking out from the gap between the housing 11 and the support plate 4.

Advantageously, as shown in fig. 9, a first sealing groove 23 is provided around the inlet opening. When the electrolyte is injected from the liquid inlet hole, the first sealing strip 51 arranged in the first sealing groove 23 is a sealing ring under the condition that the electrolyte does not enter the accommodating cavity through the liquid inlet hole but leaks into the gap between the liquid inlet joint 21 and the casing 11, so that the phenomenon that the electrolyte leaks out from the gap between the liquid inlet joint 21 and the casing 11 can be avoided to the maximum limit.

Advantageously, as shown in fig. 9, a second sealing groove 33 is provided around the inlet hole. Thus, when the electrolyte is injected from the liquid inlet hole, the third sealing strip 53 arranged in the second sealing groove 33 is a sealing ring under the condition that the electrolyte does not enter the accommodating cavity through the liquid inlet hole and leaks into the gap between the liquid outlet joint 31 and the shell 11, so that the phenomenon that the electrolyte leaks out from the gap between the liquid outlet joint 31 and the shell 11 can be avoided to the maximum extent.

In other embodiments of the present invention, the first sealing tape 51, the third sealing tape 53, the second sealing tape 52, and the fourth sealing tape 54 may be provided in a freely combined manner. Specifically, in some embodiments, the electrolyte solution distribution device is provided with a first sealing strip 51 and a third sealing strip 53; in some embodiments, the electrolyte solution separating device is provided with a second sealing strip 52 and a fourth sealing strip 54; in some embodiments, the electrolyte solution distribution device is provided with a first sealing strip 51, a second sealing strip 52, a third sealing strip 53 and a fourth sealing strip 54, which can be selected according to actual needs.

Optionally, as shown in fig. 5, a first mounting groove 13 is provided on the connecting seat 1, and the liquid inlet hole is located on the first mounting groove 13. It can be understood that, when the cross section of connecting seat 1 is circular, if directly connect feed liquor connector 2 on connecting seat 1, inconvenient feed liquor connector 2's installation also can make feed liquor connector 2 less with the area of contact of connecting seat 1 promptly, connect the unstability to electrolyte spills's phenomenon appears easily. And in this embodiment, be equipped with first mounting groove 13 on connecting seat 1, first mounting groove 13 is convenient for feed liquor connector 2 and is continuous with connecting seat 1, has improved the connection stability between the two, has avoided electrolyte to spill the phenomenon from the junction of feed liquor connector 2 and connecting seat 1 better to take place.

Optionally, as shown in fig. 7, a second mounting groove 14 is provided on the connecting seat 1, and the liquid outlet is located on the second mounting groove 14. It can be understood that, when the cross section of connecting seat 1 is circular, if direct will go out liquid connector 3 and connect on connecting seat 1, inconvenient liquid connector 3's installation also can make out liquid connector 3 and connecting seat 1's area of contact less promptly, connect unstablely to electrolyte leaks the phenomenon appears easily. In this embodiment, the second mounting groove 14 is formed in the connecting seat 1, and the second mounting groove 14 facilitates the connection between the liquid outlet connector 3 and the connecting seat 1, so that the connection stability between the liquid outlet connector 3 and the connecting seat 1 is improved, and the phenomenon that the electrolyte leaks from the connection between the liquid outlet connector 3 and the connecting seat 1 is avoided.

Optionally, as shown in fig. 2, the liquid inlet connector 2 includes a liquid inlet connector 21 and a first boss 22, and the first boss 22 is sleeved at one end of the liquid inlet connector 21 and connected to the first mounting groove 13, so that the first boss 22 increases the contact area between the liquid inlet connector 2 and the first mounting groove 13, thereby further improving the connection stability.

Optionally, as shown in fig. 2, the liquid outlet connector piece 3 includes a liquid outlet connector 31 and a second boss 32, the second boss 32 is sleeved on one end of the liquid outlet connector 31, and the second mounting groove 14 is connected, so that the second boss 32 increases the contact area between the liquid outlet connector piece 3 and the second mounting groove 14, thereby further improving the connection stability.

Alternatively, as shown in fig. 8, the liquid inlet joint 21 includes a plurality of first joints 211 and a plurality of first protrusions 212, and the plurality of first protrusions 212 are parallelly and alternately sleeved on one end of the first joints 211. It should be noted that the plurality of first protrusions 212 are disposed at an end of the first joint 211 at intervals in parallel, so as to bind the pipe body to the liquid inlet joint 21 for connecting the liquid injection pump, and meanwhile, the electrolyte is not easy to leak from the joint between the pipe body and the liquid inlet joint 21.

Optionally, as shown in fig. 6, the liquid outlet connector 31 includes a plurality of second connectors 311 and a plurality of second protrusions 312, and the plurality of second protrusions 312 are parallelly and alternately sleeved on one end of the second connectors 311. It should be noted that the plurality of second protrusions 312 are sleeved at one end of the second connector 311 in parallel at intervals, so that the tube body is conveniently bound to the liquid outlet connector 31 to connect the battery cell, and meanwhile, the electrolyte is not easy to leak from the connection between the tube body and the liquid outlet connector 31.

Advantageously, the liquid inlet joint piece 2 is connected with the liquid injection pump through a Teflon pipe; the liquid outlet joint piece 3 is connected with the liquid injection needle through a Teflon pipe. Of course, in other embodiments of the present invention, the connection manner is not limited to the teflon tube connection, and other choices may be made according to specific situations.

Advantageously, the two housings 11 are connected by means of bolts, the inlet fitting 2 being bolted to the connecting socket 1; the liquid outlet joint piece 3 is connected with the connecting seat 1 through a bolt; the supporting plate 4 is connected with the connecting seat 1 through bolts. Of course, in some embodiments of the present invention, the connection manner is not limited to the bolt connection, and other selections may be made according to specific situations.

The utility model provides a priming device of electrolyte includes the branch liquid device of electrolyte, the infusion pump with annotate the liquid needle, the one end of the branch liquid device of electrolyte is suitable for and links to each other with the infusion pump, the other end is suitable for and links to each other with a plurality of notes liquid needles, every notes liquid needle is suitable for and links to each other with an electric core, it is equipped with the partition valve membrane on the liquid needle to annotate, the manufacturing cost of this priming device of decomposition liquid is lower and practiced thrift the production line space, in addition, it is equipped with the partition valve membrane on the liquid needle to annotate, when the partition valve membrane of one of them notes liquid needle is opened, the partition valve membrane is all closed to other notes liquid needles, so that electrolyte can only flow out electric core from a notes liquid.