A liquid separation device and a liquid injection device for electrolyte

Abstract

The present invention discloses an electrolyte liquid separation device and a liquid injection device, the electrolyte liquid separation device comprises a connection seat, a liquid inlet joint piece and a liquid outlet joint piece, a liquid inlet hole and at least two liquid outlet holes are respectively provided on opposite sides of the connection seat, the liquid inlet hole is connected with each liquid outlet hole, one end of the liquid inlet joint piece is connected with the connection seat, the inflow hole of the liquid inlet joint piece is connected with the liquid inlet hole, and the other end is suitable for connecting with a liquid injection pump, there are at least two liquid outlet joint pieces, one end of each liquid outlet joint piece is connected with the connection seat, and the other end is suitable for connecting with an injection needle, and the outflow hole of the liquid outlet joint piece is connected with the liquid outlet hole. The manufacturing cost of the liquid separation device is low and the production line space is saved.

Description

Technical Field

[0001] The present invention relates to the technical field of liquid injection, and in particular to a liquid separation device and a liquid injection device for an electrolyte. Background Art

[0002] With the continuous development of science and technology, more and more electronic devices have entered people's lives and work. These electronic devices need to be equipped with batteries. Soft-pack polymer batteries have many advantages such as small size, light weight, high energy ratio, high safety, and flexible design. They are particularly suitable for these portable devices. This polymer battery generally has a battery cell. The aluminum-plastic film is punched to accommodate the battery cell, and then the battery cell is packaged, injected, and cut. The traditional injection structure is that one injection pump corresponds to one injection needle, and one injection needle is used to inject liquid into one battery cell. Obviously, this work efficiency is low; in order to improve production efficiency, multiple injection pumps and multiple injection needles are often equipped on the production line at the same time to inject liquid into multiple batteries at the same time, which occupies a large amount of production line space and has a relatively high manufacturing cost. Summary of the invention

[0003] An object of the present invention is to provide an electrolyte dispensing device, which has low manufacturing cost and saves production line space.

[0004] Another object of the present invention is to provide an electrolyte injection device, which has a low manufacturing cost and saves production line space.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] A liquid separation device for electrolyte, comprising a connecting seat, a liquid inlet connector and a liquid outlet connector, wherein a liquid inlet hole and at least two liquid outlet holes are respectively provided on opposite sides of the connecting seat, and the liquid inlet hole is connected to each of the liquid outlet holes; one end of the liquid inlet connector is connected to the connecting seat, and the other end is suitable for being connected to an injection pump, and the inflow hole of the liquid inlet connector is connected to the liquid inlet hole; there are at least two liquid outlet connectors, one end of each of the liquid outlet connectors is connected to the connecting seat, and the other end is suitable for being connected to an injection needle, and the outflow hole of the liquid outlet connector is connected to the liquid outlet hole.

[0007] Optionally, the connecting seat includes two shells, the two shells are detachably connected and the opposite end faces of the two shells are provided with two corresponding receiving grooves, the two receiving grooves can form an receiving cavity, and the receiving cavity is connected to the liquid inlet hole and the liquid outlet hole.

[0008] Optionally, the electrolyte separation device further includes a support plate, wherein the number of the support plates is two, and the two support plates are respectively connected to two ends of the connecting seat to close two ends of the accommodating cavity.

[0009] Optionally, the electrolyte separation device further comprises a sealing strip, which is arranged around the accommodating cavity, the inlet hole and the outlet hole, and is used to seal the accommodating cavity to form a space communicating with the liquid inlet hole and the liquid outlet hole.

[0010] Optionally, the sealing strip includes a first sealing strip, a second sealing strip, a third sealing strip and a fourth sealing strip, the first sealing strip being arranged in a first sealing groove on one end of the liquid inlet connector facing the liquid inlet hole; two first half grooves are arranged on each of the shells, the two first half grooves are respectively connected to the first sealing groove, the first half grooves on 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 the two second sealing strips abuts against the first sealing strip, and the other end abuts against the support plate; the third sealing strip is arranged in a second sealing groove on one end of each of the liquid outlet connector facing the liquid outlet hole; a plurality of second half grooves are arranged on each of the shells, at least one end of each of the second half grooves is connected to one of the second sealing grooves, the second half grooves on the two shells are correspondingly arranged to form a plurality of second matching grooves, the fourth sealing strip is arranged in each of the second matching grooves, one end of the fourth sealing strip abuts against the third sealing strip, and the other end abuts against the support plate.

[0011] Optionally, a first mounting groove is provided on the connecting base, and the liquid inlet hole is located on the first mounting groove; a second mounting groove is provided on the connecting base, and the liquid outlet hole is located on the second mounting groove.

[0012] Optionally, the liquid inlet joint member includes a liquid inlet joint and a first boss, the first boss is sleeved on one end of the liquid inlet joint and connected to the first mounting groove; the liquid outlet joint member includes a liquid outlet joint and a second boss, the second boss is sleeved on one end of the liquid outlet joint and connected to the second mounting groove.

[0013] Optionally, the liquid inlet connector includes a first connector and a first protrusion, there are multiple first protrusions, and the multiple first protrusions are sleeved on one end of the first connector in parallel and at intervals.

[0014] Optionally, the liquid outlet joint includes a second joint and a second protrusion, and there are multiple second protrusions, which are sleeved on one end of the second joint in parallel and at intervals.

[0015] The electrolyte separation device of the present invention has beneficial effects compared with the prior art: a liquid inlet hole and at least two liquid outlet holes are respectively provided on the opposite sides of the connecting seat, one end of the liquid inlet connector is connected to the connecting seat, and the other end is connected to the liquid injection pump, the inflow hole of the liquid inlet connector is connected to the liquid inlet hole, there are at least two liquid outlet connectors, one end of each liquid outlet connector is connected to the connecting seat, and the other end is connected to an injection needle, each injection needle is connected to a battery cell, and the outflow hole of the liquid outlet connector is connected to the liquid outlet hole, thereby realizing the use of one injection pump corresponding to at least two liquid outlet needles, and each injection needle corresponds to one battery cell, saving production line space and reducing manufacturing costs.

[0016] A liquid injection device for electrolyte comprises a liquid separation device, a liquid injection pump and a liquid injection needle. One end of the liquid separation device is suitable for being connected to the liquid injection pump, and the other end is suitable for being connected to a plurality of liquid injection needles. Each of the liquid injection needles is suitable for being connected to a battery cell. A valve membrane is provided on the liquid injection needle.

[0017] The electrolyte injection device of the present invention has the following advantages over the prior art: the manufacturing cost of the electrolyte injection device is low and the production line space is saved; in addition, a diaphragm valve membrane is provided on the injection needle; when one of the injection needles opens the diaphragm valve membrane, the other injection needles close the diaphragm valve membrane, so that the electrolyte can only flow out of one injection needle to the battery cell at a time, thereby ensuring the amount of electrolyte required by the battery cell to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of an electrolyte separation device provided in a specific embodiment of the present invention;

[0019] Figure 2 It is a schematic structural diagram of an electrolyte separation device provided in a specific embodiment of the present invention when one shell is disassembled;

[0020] Figure 3 yes Figure 2 An enlarged schematic diagram marked as C;

[0021] Figure 4 It is a schematic structural diagram of an electrolyte separation device provided in a specific embodiment of the present invention when one shell is disassembled;

[0022] Figure 5 It is a structural schematic diagram of the electrolyte separation device provided in a specific embodiment of the present invention when the liquid inlet connector is disassembled;

[0023] Figure 6 yes Figure 4 An enlarged schematic diagram marked as A;

[0024] Figure 7It is a structural schematic diagram of an electrolyte separation device provided in a specific embodiment of the present invention when one liquid outlet connector is disassembled;

[0025] Figure 8 yes Figure 6 An enlarged schematic diagram marked as B;

[0026] Fig. 9 It is a schematic diagram of the decomposition of the liquid inlet connector and the liquid outlet connector of the electrolyte separation device provided in the specific embodiment of the present invention.

[0027] Reference numerals:

[0028] Connecting seat-1, housing-11, receiving groove-12, first mounting groove-13, second mounting groove-14; first matching groove-15; second matching groove-16;

[0029] Liquid inlet connector-2, liquid inlet connector-21, first connector-211, first protruding portion-212, first boss-22, first sealing groove-23;

[0030] Liquid outlet connector-3, liquid outlet connector-31, second connector-311, second protruding portion-312, second boss-32, second sealing groove-33;

[0031] Support plate-4;

[0032] The first sealing strip - 51, the second sealing strip - 52, the third sealing strip - 53, and the fourth sealing strip - 54. DETAILED DESCRIPTION

[0033] In order to make the technical problem solved by the present invention, the technical solution adopted and the technical effect achieved more clearly, the technical solution of the present invention is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0034] Reference below Figures 1 to 9 The electrolyte dispensing device according to the embodiment of the present invention is described.

[0035] like Figure 1 As shown, the electrolyte separation device of the present invention includes a connecting seat 1, a liquid inlet connector 2 and a liquid outlet connector 3. A liquid inlet hole and at least two liquid outlet holes are respectively provided on opposite sides of the connecting seat 1, and the liquid inlet hole is connected with each liquid outlet hole. One end of the liquid inlet connector 2 is connected to the connecting seat 1, and the other end is suitable for being connected to an injection pump, and the inlet hole of the liquid inlet connector 2 is connected with the liquid inlet hole; there are at least two liquid outlet connectors 3, one end of each liquid outlet connector 3 is connected to the connecting seat 1, and the other end is suitable for being connected to an injection needle, and the outflow hole of the liquid outlet connector 3 is connected with the liquid outlet hole.

[0036] It can be understood that, since the connecting seat 1 is provided with a liquid inlet hole and at least two liquid outlet holes on opposite sides, one end of the liquid inlet connector 2 is connected to the connecting seat 1, and the other end is connected to the injection pump, the inflow hole of the liquid inlet connector 2 is connected to the liquid inlet hole, and there are at least two liquid outlet connectors 3, one end of each liquid outlet connector 3 is connected to the connecting seat 1, and the other end is connected to an injection needle, each injection needle is connected to a battery cell, and the outflow hole of the liquid outlet connector 3 is connected to the liquid outlet hole, so that one injection pump is used to correspond to at least two liquid outlet needles, and each injection needle corresponds to a battery cell, which reduces the number of injection pumps and saves production line space. At the same time, it reduces manufacturing costs and improves work efficiency.

[0037] It should be noted that a diaphragm is provided on the liquid outlet needle, which is used to control the electrolyte flowing into the battery cell. Before the injection pump injects the electrolyte from the liquid inlet hole to the liquid outlet hole, the diaphragm on one of the injection needles is opened, and the diaphragm on the other injection needles is closed, so that the electrolyte can only flow out of the injection needle with the opened diaphragm into the battery cell each time, ensuring the amount of electrolyte required for each battery cell.

[0038] Alternatively, if Figure 2 As shown, the connecting seat 1 includes two shells 11, which are detachably connected and have two corresponding receiving grooves 12 on opposite end faces of the two shells 11. The two receiving grooves 12 can form an receiving cavity, which is connected to the liquid inlet and the liquid outlet.

[0039] It should be noted that two corresponding receiving grooves 12 are provided on the opposite end faces of the two shells 11. The two receiving grooves 12 form a receiving cavity and are connected to the liquid inlet hole, so that the electrolyte can flow into the receiving cavity from the liquid inlet hole and be stored in the receiving cavity. Since the receiving cavity is also connected to the liquid outlet hole, the electrolyte can also flow out from the liquid outlet hole. In addition, the two shells 11 are detachably connected, which helps to clean the residual electrolyte in the two receiving grooves 12 for the next use.

[0040] Alternatively, if Figure 1 As shown, the electrolyte separation device further includes a support plate 4, and there are two support plates 4. The two support plates 4 are respectively connected to the two ends of the connecting seat 1 to close the two ends of the accommodating cavity.

[0041] It should be noted that the support plates 4 are respectively connected to the two ends of the connecting seat 1. Firstly, they play the role of supporting the connecting seat 1, and secondly, the two support plates 4 close the two ends of the accommodating cavity, thereby preventing the electrolyte from leaking from the two ends of the accommodating cavity to a certain extent, affecting the normal use of the electrolyte separation device.

[0042] Optionally, the electrolyte separation device further comprises a sealing strip, which is arranged around the accommodating cavity, the inlet hole and the outlet hole, and is used to seal the accommodating cavity to form a space communicating with the liquid inlet hole and the liquid outlet hole.

[0043] It can be understood that since the sealing strip is arranged around the accommodating cavity, the electrolyte is prevented from leaking from the gap connecting the two shells 11; in addition, the sealing strip is arranged around the inlet hole, the electrolyte is prevented from leaking from the gap connecting the connecting seat 1 and the liquid inlet connector 2; the sealing strip is arranged around the outflow hole, the electrolyte is prevented from leaking from the gap connecting the connecting seat 1 and the liquid outlet connector 3, and at the same time, it also ensures that the accommodating cavity can be connected with the liquid inlet hole and the liquid outlet hole.

[0044] Alternatively, if Figure 2 , Figure 3 and Figure 4 As shown, 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 one end of the liquid inlet connector 2 facing the liquid inlet hole; each shell 11 is provided with two first half grooves, and the two first half grooves are respectively connected to the first sealing groove 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, and one end of the two second sealing strips 52 stops at On the first sealing strip 51, the other end stops on the support plate 4; the third sealing strip 53 is arranged in the second sealing groove 33 on the end of each liquid outlet joint 3 facing the liquid outlet hole; each shell 11 is provided with a plurality of second half grooves, and at least one end of each second half groove is connected to a second sealing groove 33, and the second half grooves on the two shells 11 are correspondingly arranged to form a plurality of second matching grooves 16, and each second matching groove 16 is provided with a fourth sealing strip 54, one end of the fourth sealing strip 54 stops on the third sealing strip 53, and the other end stops on the support plate 4.

[0045] It is understandable that if Fig. 9 As shown, the first sealing strip 51 is arranged in the first sealing groove 23 on the end of the liquid inlet connector 2 facing the liquid inlet hole, preventing the electrolyte from leaking out of the gap between the connecting seat 1 and the liquid inlet connector 2; the third sealing strip 53 is arranged in the second sealing groove 33 on the end of each liquid outlet connector 3 facing the liquid outlet hole, preventing the electrolyte from leaking out of the gap between the connecting seat 1 and the liquid outlet connector 3. Figure 3As shown, the two first matching grooves 15 of the shell 11 are respectively provided with two second sealing strips 52, one end of the two second sealing strips 52 abuts against the first sealing strip 51, and the other end abuts against the support plate 4. Thus, the second sealing strip 52 can prevent the electrolyte from leaking from the gap between the two shells 11. One end of the second sealing strip 52 abuts against the first sealing strip 51, preventing the electrolyte from leaking from the gap between the liquid inlet connector 2 and the shell 11. One end of the second sealing strip 52 abuts against the support plate 4, preventing the electrolyte from leaking from the gap between the shell 11 and the support plate 4.

[0046] like Figure 3 As shown, 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 from the gap between the two housings 11. One end of the fourth sealing strip 54 abuts against the third sealing strip 53, preventing the electrolyte from leaking from the gap between the liquid outlet connector 31 and the housing 11. One end of the fourth sealing strip 54 abuts against the support plate 4, preventing the electrolyte from leaking from the gap between the housing 11 and the support plate 4.

[0047] Advantageously, if Fig. 9 As shown, the first sealing groove 23 is arranged around the liquid inlet hole. In this way, when the electrolyte is injected from the liquid inlet hole, in the case where the electrolyte does not enter the accommodating cavity through the liquid inlet hole but leaks into the gap between the liquid inlet connector 21 and the housing 11, the first sealing strip 51 arranged in the first sealing groove 23 is a sealing ring, which can prevent the electrolyte from leaking from the gap between the liquid inlet connector 21 and the housing 11 to the greatest extent.

[0048] Advantageously, if Fig. 9 As shown, the second sealing groove 33 is arranged around the liquid inlet hole. In this way, when the electrolyte is injected from the liquid inlet hole, if the electrolyte does not enter the accommodating cavity through the liquid inlet hole but leaks into the gap between the liquid outlet connector 31 and the housing 11, the third sealing strip 53 arranged in the second sealing groove 33 is a sealing ring, which can prevent the electrolyte from leaking from the gap between the liquid outlet connector 31 and the housing 11 to the greatest extent.

[0049] It should be noted that in other embodiments of the present invention, the three methods of setting the first sealing strip 51, setting the third sealing strip 53, and setting the second sealing strip 52 and the fourth sealing strip 54 can be freely combined. Specifically, in some embodiments, the electrolyte separation device is provided with the first sealing strip 51 and the third sealing strip 53; in some embodiments, the electrolyte separation device is provided with the second sealing strip 52 and the fourth sealing strip 54; in some embodiments, the electrolyte separation device is provided with the first sealing strip 51, the second sealing strip 52, the third sealing strip 53 and the fourth sealing strip 54, which can be selected according to actual needs.

[0050] Alternatively, if Figure 5 As shown, the connection base 1 is provided with a first mounting groove 13, and the liquid inlet hole is located on the first mounting groove 13. It can be understood that when the cross section of the connection base 1 is circular, if the liquid inlet connector 2 is directly connected to the connection base 1, it is not convenient to install the liquid inlet connector 2, and the contact area between the liquid inlet connector 2 and the connection base 1 will be small, and the connection will be unstable, so that the electrolyte will easily leak out. In this embodiment, the connection base 1 is provided with a first mounting groove 13, and the first mounting groove 13 facilitates the connection between the liquid inlet connector 2 and the connection base 1, improves the connection stability between the two, and better avoids the electrolyte from leaking from the connection between the liquid inlet connector 2 and the connection base 1.

[0051] Optional, such as Figure 7 As shown, the connection base 1 is provided with a second mounting groove 14, and the liquid outlet is located on the second mounting groove 14. It can be understood that when the cross section of the connection base 1 is circular, if the liquid outlet connector 3 is directly connected to the connection base 1, it is inconvenient to install the liquid outlet connector 3, and the contact area between the liquid outlet connector 3 and the connection base 1 will be small, and the connection will be unstable, so that the electrolyte will easily leak out. In this embodiment, the connection base 1 is provided with a second mounting groove 14, and the second mounting groove 14 facilitates the connection between the liquid outlet connector 3 and the connection base 1, improves the connection stability between the two, and better avoids the electrolyte from leaking from the connection between the liquid outlet connector 3 and the connection base 1.

[0052] Alternatively, if Figure 2 As shown, the liquid inlet connector 2 includes a liquid inlet connector 21 and a first boss 22. The first boss 22 is sleeved on one end of the liquid inlet connector 21 and connected to the first mounting groove 13. Therefore, the first boss 22 increases the contact area between the liquid inlet connector 2 and the first mounting groove 13, thereby further improving the stability of the connection.

[0053] Alternatively, if Figure 2As shown, the liquid outlet connector 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 connected to the second mounting groove 14. Therefore, the second boss 32 increases the contact area between the liquid outlet connector 3 and the second mounting groove 14, thereby further improving the stability of the connection.

[0054] Alternatively, if Figure 8 As shown, the liquid inlet connector 21 includes a first connector 211 and a first protrusion 212. There are multiple first protrusions 212, and the multiple first protrusions 212 are sleeved in parallel and spaced at one end of the first connector 211. It should be noted that the multiple first protrusions 212 are sleeved in parallel and spaced at one end of the first connector 211, which facilitates the binding of the tube body to the liquid inlet connector 21 to connect the injection pump, and at the same time, the electrolyte is not easy to leak from the connection between the tube body and the liquid inlet connector 21.

[0055] Alternatively, if Figure 6 As shown, the liquid outlet connector 31 includes a second connector 311 and a second protrusion 312. There are multiple second protrusions 312, and the multiple second protrusions 312 are sleeved in parallel and spaced at one end of the second connector 311. It should be noted that the multiple second protrusions 312 are sleeved in parallel and spaced at one end of the second connector 311, which facilitates the binding of the tube body to the liquid outlet connector 31 to connect the battery cell, and at the same time, the electrolyte is not easy to leak from the connection between the tube body and the liquid outlet connector 31.

[0056] Advantageously, the liquid inlet connector 2 is connected to the liquid injection pump via a Teflon tube; the liquid outlet connector 3 is connected to the liquid injection needle via a Teflon tube. Of course, in other embodiments of the present invention, the connection method is not limited to the Teflon tube connection, and other options can be made according to specific circumstances.

[0057] Advantageously, the two housings 11 are connected by bolts, the liquid inlet connector 2 is bolted to the connection base 1; the liquid outlet connector 3 is bolted to the connection base 1; and the support plate 4 is bolted to the connection base 1. Of course, in some embodiments of the present invention, the connection method is not limited to bolt connection, and other options can be made according to specific circumstances.

[0058] A liquid injection device for electrolyte comprises a liquid separation device for electrolyte, a liquid injection pump and a liquid injection needle. One end of the liquid separation device for electrolyte is suitable for being connected to the liquid injection pump, and the other end is suitable for being connected to a plurality of liquid injection needles. Each liquid injection needle is suitable for being connected to a battery cell. A diaphragm valve membrane is provided on the liquid injection needle. The manufacturing cost of the liquid injection device for decomposition liquid is low and the space of the production line is saved. In addition, a diaphragm valve membrane is provided on the liquid injection needle. When the diaphragm valve membrane of one of the liquid injection needles is opened, the diaphragm valve membranes of the other liquid injection needles are closed so that the electrolyte can only flow out of one liquid injection needle to the battery cell at a time, thereby ensuring the amount of electrolyte required by the battery cell to a certain extent.

[0059] Example:

[0060] Combine the following Figures 1 to 9 The preferred embodiment of the electrolyte separation device of the present invention is described in detail:

[0061] like Figure 1 As shown, the electrolyte separation device includes two support plates 4, a connection seat 1, a sealing strip, a liquid inlet connector 2 and six liquid outlet connectors 3. The connection seat 1 is provided with a liquid inlet hole and at least two liquid outlet holes on opposite sides. The liquid inlet hole is connected to each liquid outlet hole. One end of the liquid inlet connector 2 is connected to the connection seat 1, and the other end is suitable for connecting to the injection pump. The inlet hole of the liquid inlet connector 2 is connected to the liquid inlet hole. One end of each liquid outlet connector 3 is connected to the connection seat 1, and the other end is suitable for connecting to an injection needle. The outflow hole of the liquid outlet connector 3 is connected to the liquid outlet hole. Figure 2 As shown, the connection base 1 includes two shells 11, the two shells 11 are detachably connected and the opposite end surfaces of the two shells 11 are provided with two corresponding receiving grooves 12, the two receiving grooves 12 can form a receiving cavity, the receiving cavity is connected with the liquid inlet and the liquid outlet, and the two support plates 4 are respectively connected to the two ends of the connection base 1 to close the two ends of the receiving cavity. The sealing strip is arranged around the receiving cavity, the inlet and the outlet, and is used to seal the receiving cavity to form a space connected with the liquid inlet and the liquid outlet. Figure 2 , Figure 3 and Figure 4 As shown, 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. Fig. 9 As shown, the first sealing strip 51 is arranged in the first sealing groove 23 on one end of the liquid inlet connector 2 facing the liquid inlet hole, and two first half grooves are arranged on each shell 11, and the two first half grooves are respectively connected to the first sealing groove 23. The first half grooves on the two shells 11 are correspondingly arranged to form two first matching grooves 15, and two second sealing strips 52 are respectively arranged in the two first matching grooves 15, and one end of the two second sealing strips 52 is stopped on the first sealing strip 51, and the other end is stopped on the support plate 4, as shown in FIG. Fig. 9 As shown, the third sealing strip 53 is arranged in the second sealing groove 33 on one end of each liquid outlet joint member 3 facing the liquid outlet hole, and each shell 11 is provided with seven second half grooves, and at least one end of each second half groove is connected to a second sealing groove 33. The second half grooves on the two shells 11 are arranged correspondingly to form seven second matching grooves 16, and each second matching groove 16 is provided with a fourth sealing strip 54, and one end of the fourth sealing strip 54 stops against the third sealing strip 53, and the other end stops against the support plate 4. Figure 5 As shown, the connecting seat 1 is provided with a first mounting groove 13, and the liquid inlet hole is located on the first mounting groove 13. Figure 7 As shown, the connecting seat 1 is provided with a second mounting groove 14, and the liquid outlet is located on the second mounting groove 14. Figure 2 As shown, the liquid inlet connector 2 includes a liquid inlet connector 21 and a first boss 22, the first boss 22 is sleeved on one end of the liquid inlet connector 21 and connected to the first mounting groove 13; the liquid outlet connector 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 connected to the second mounting groove 14. Figure 8 As shown, the liquid inlet connector 21 includes a first connector 211 and a first protrusion 212. There are multiple first protrusions 212, and the multiple first protrusions 212 are sleeved on one end of the first connector 211 in parallel and at intervals. Figure 6 As shown, the liquid outlet joint 31 includes a second joint 311 and a second protrusion 312 . There are multiple second protrusions 312 , and the multiple second protrusions 312 are sleeved on one end of the second joint 311 in parallel and at intervals.

[0062] Instructions for use of this embodiment: Before the injection pump injects electrolyte from the liquid inlet hole and flows out from the liquid outlet hole, the diaphragm valve membrane on one of the injection needles is opened, and the diaphragm valve membranes on the other five injection needles are closed, so that the electrolyte can only flow into the battery cell from the injection needle with the open diaphragm valve membrane at a time.

[0063] The beneficial effects of this embodiment are as follows: a liquid inlet hole and six liquid outlet holes are respectively provided on opposite sides of the connecting seat 1, one end of the liquid inlet connector 2 is connected to the connecting seat 1, and the other end is connected to the liquid injection pump, the inflow hole of the liquid inlet connector 2 is connected to the liquid inlet hole, there are six liquid outlet connectors 3, one end of each liquid outlet connector 3 is connected to the connecting seat 1, and the other end is connected to an injection needle, each injection needle is connected to a battery cell, and the outflow hole of the liquid outlet connector 3 is connected to the liquid outlet hole, thereby realizing the use of one injection pump corresponding to six liquid outlet needles, and each injection needle corresponds to one battery cell, saving production line space and reducing manufacturing costs.

[0064] In the description of this specification, the description with reference to the terms "some embodiments", "other embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0065] In addition, it should be understood that the orientations or positional relationships indicated by terms such as "upper", "lower", "inside", "outside", "vertical", and "horizontal" are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0066] In the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", "installed", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above-mentioned terms in the present invention can be understood according to specific circumstances.

[0067] In addition, features defined as "first" or "second" may explicitly or implicitly include one or more of the features, and are used to distinguish and describe features, without distinction of order or importance. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0068] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The content of this specification should not be understood as limiting the present invention.

Claims

1. An electrolyte separation device, characterized in that: include: A connecting seat (1), wherein two opposite sides of the connecting seat (1) are respectively provided with a liquid inlet hole and at least two liquid outlet holes, and the liquid inlet hole is connected to each of the liquid outlet holes; A liquid inlet connector (2), one end of the liquid inlet connector (2) being connected to the connecting seat (1), and the other end being suitable for being connected to a liquid injection pump, and the inflow hole of the liquid inlet connector (2) being connected to the liquid inlet hole; a liquid outlet connector (3), wherein the number of the liquid outlet connectors (3) is at least two, one end of each of the liquid outlet connectors (3) is connected to the connection seat (1), and the other end is suitable for being connected to an injection needle, and the outflow hole of the liquid outlet connector (3) is connected to the liquid outlet hole; The connecting base (1) comprises two shells (11), the two shells (11) are detachably connected and the two shells (11) have two corresponding receiving grooves (12) on opposite end surfaces, the two receiving grooves (12) can form an receiving cavity, and the receiving cavity is in communication with the liquid inlet and the liquid outlet; It also comprises a support plate (4), wherein the support plates (4) are two in number, and the two support plates (4) are respectively connected to the two ends of the connection seat (1) to close the two ends of the accommodating cavity; It also includes a sealing strip, which is arranged around the accommodating cavity, the inlet hole and the outlet hole, and is used to seal the accommodating cavity to form a space connected with the liquid inlet hole and the liquid outlet hole; 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 connector (2) facing the liquid inlet hole; each of the shells (11) is provided with two first half grooves, the two first half grooves are respectively connected to the first sealing groove (23); the first half grooves on the two shells (11) are arranged correspondingly to form two first matching grooves, the two first matching grooves are respectively provided with two second sealing strips (52), one end of the two second sealing strips (52) abuts against the first The sealing strip (51) is disposed on the sealing strip (51), and the other end abuts against the support plate (4); the third sealing strip (53) is arranged in the second sealing groove (33) on one end of each of the liquid outlet joint pieces (3) facing the liquid outlet hole; a plurality of second half grooves are provided on each of the shells (11), at least one end of each of the second half grooves is connected to a second sealing groove (33), the second half grooves on the two shells (11) are correspondingly arranged to form a plurality of second matching grooves, the fourth sealing strip (54) is provided in each of the second matching grooves, 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).

2. The electrolyte dispensing device according to claim 1, characterized in that: The connecting seat (1) is provided with a first mounting groove (13), the liquid inlet hole is located on the first mounting groove (13), and the connecting seat (1) is provided with a second mounting groove (14), the liquid outlet hole is located on the second mounting groove (14).

3. The electrolyte dispensing device according to claim 2, characterized in that: The liquid inlet joint member (2) comprises a liquid inlet joint (21) and a first boss (22), wherein the first boss (22) is sleeved on one end of the liquid inlet joint (21) and connected to the first mounting groove (13); the liquid outlet joint member (3) comprises a liquid outlet joint (31) and a second boss (32), wherein the second boss (32) is sleeved on one end of the liquid outlet joint (31) and connected to the second mounting groove (14).

4. The electrolyte dispensing device according to claim 3, characterized in that: The liquid inlet connector (21) comprises a first connector (211) and a first protruding portion (212); the first protruding portions (212) are multiple, and the multiple first protruding portions (212) are sleeved on one end of the first connector (211) in parallel and at intervals.

5. The electrolyte dispensing device according to claim 3, characterized in that: The liquid outlet joint (31) comprises a second joint (311) and a second protruding portion (312), wherein the second protruding portions (312) are multiple, and the multiple second protruding portions (312) are sleeved on one end of the second joint (311) in parallel and at intervals.

6. An electrolyte injection device, characterized in that: It comprises the electrolyte dispensing device, injection pump and injection needle as described in any one of claims 1 to 5, one end of the electrolyte dispensing device is suitable for being connected to the injection pump, and the other end is suitable for being connected to a plurality of injection needles, each of the injection needles is suitable for being connected to a battery cell, and a diaphragm valve membrane is provided on the injection needle.

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