Liquid injection device and battery production system

Abstract

The utility model discloses a liquid injection device and a battery production system. The liquid injection device comprises a liquid conveying pipe and a power pump, wherein the infusion tube is provided with a liquid inlet and a liquid outlet, and at least the tube section, provided with the liquid inlet, of the infusion tube is configured to be a heating section body; the power pump is communicated with the liquid conveying pipe. According to the technical scheme, the possibility that the liquid injection device is blocked can be reduced, and the liquid injection stability of the liquid injection device is improved.

Description

Technical Field

[0001] This application relates to the field of battery manufacturing technology, and in particular to a liquid injection device and a battery manufacturing system. Background Technology

[0002] In the related technology, when the liquid injection device draws and injects the relevant liquid, some of the liquid will crystallize due to the influence of temperature, which will easily cause the liquid injection device to become blocked. Utility Model Content

[0003] The main objective of this application is to provide a liquid injection device that reduces the possibility of blockage and improves the stability of liquid injection.

[0004] To achieve the above objectives, the liquid injection device proposed in this application includes:

[0005] An infusion tubing, having an inlet and an outlet, wherein at least one section of the tubing with an inlet is configured as a heating section; and

[0006] A power pump is connected to the infusion tubing.

[0007] The liquid injection device of this application configures a section of the infusion pipe with at least one inlet as a heating section, so that the end of the infusion pipe with the inlet can be heated while inserted into the liquid to be extracted. This allows crystals in the liquid to be converted into a liquid state before extraction, and keeps the liquid within the infusion pipe body, thereby reducing the possibility of blockage by crystals and improving the stability of the liquid injection process.

[0008] Optionally, the infusion tubing includes:

[0009] The main pipeline has a liquid outlet, and the power pump is connected to the main pipeline; and

[0010] The suction needle is equipped with an inlet and is connected to the main pipeline. At least the suction needle in the infusion tube is configured as a heating section.

[0011] Therefore, it is possible to better accommodate the insertion of the infusion tube and the storage container for the liquid to be extracted, as well as the delivery efficiency of the infusion tube for the liquid to be extracted.

[0012] Optionally, the suction needle is a first heating element, so that the suction needle is configured as a heating section.

[0013] Alternatively, the aspiration needle includes a needle body and a first heating element. The needle body has an inlet and is connected to the main pipe. The first heating element is located on the needle body so that the aspiration needle is configured as a heating section.

[0014] Therefore, by setting the aspiration needle to be directly formed from the first heating element, the heating effect of the liquid to be extracted can be improved and its structure can be simplified; while by including the needle body and the first heating element in the aspiration needle, it can be easily connected to the main pipeline.

[0015] Optionally, the liquid injection device further includes a first temperature control switch, which is electrically connected to a first heating element.

[0016] This makes it easy to achieve constant temperature heating control of the liquid to be extracted.

[0017] Optionally, the number of aspiration needles is at least two, and the at least two aspiration needles are respectively connected to the main tube.

[0018] This facilitates the extraction of liquids with different components and improves the efficiency of liquid extraction and injection.

[0019] Optionally, the main pipeline includes:

[0020] The manifold section is equipped with a liquid outlet; and

[0021] At least two branch segments, each of which is connected to the confluence segment, and each aspiration needle is connected to one branch segment.

[0022] This results in a single number of liquid outlets, making it easier to control their alignment and connection with weighing or storage containers.

[0023] Optionally, the number of power pumps is at least two, with each power pump connected to a branch segment.

[0024] This allows the aspiration needles, which correspond one-to-one with the branch segments, to work independently, thereby improving the flexibility of extracting and injecting different liquids.

[0025] Optionally, the number of main tubes is at least two, with each aspiration needle connected to one main tube;

[0026] The number of power pumps is at least two, and each power pump is connected to a main pipeline.

[0027] This allows each infusion tube to work independently, thereby increasing the flexibility of extracting and injecting different liquids.

[0028] Optionally, the main pipe is a second electric heating element, so that the main pipe is configured as a heating section.

[0029] Alternatively, the main pipeline includes a pipeline body and a second electric heating element. The pipeline body is provided with a liquid outlet, and the liquid suction needle and the power pump are both connected to the pipeline body. The second electric heating element is located in the pipeline body, so that the main pipeline is configured as a heating section.

[0030] This allows the liquid to be extracted to be heated within the main pipe, reducing the possibility of cooling and crystallization during transport and thus improving the liquid retention within the delivery pipe. Designing the main pipe as being directly formed from the second heating element improves the heating effect on the liquid and simplifies its structure; designing the main pipe to include both the pipe body and the second heating element facilitates connection with the power pump and the suction needle.

[0031] Optionally, the liquid injection device also includes a second temperature control switch, which is electrically connected to the second heating element.

[0032] This facilitates constant temperature heating control of the liquid to be extracted within the main pipeline.

[0033] Optionally, the main pipeline includes a pipeline body and a second electric heating element, the second electric heating element being located on the outside of the pipeline body;

[0034] The liquid injection device also includes a protective shell, with the pipeline body and the second heating element both housed within the protective shell.

[0035] Therefore, placing the second heating element on the outside of the pipe body facilitates its arrangement and does not obstruct the flow of the liquid to be extracted inside the pipe body; while the protective shell can isolate and protect the main pipe, thereby reducing the possibility of damage from external objects and leakage accidents.

[0036] Optionally, the pipe body is a flexible hose, and the protective shell includes at least two sub-shells, which are detachably connected and enclose an installation space.

[0037] Both the pipe body and the second heating element are located within the installation space, and the second heating element is connected to at least one sub-shell.

[0038] Therefore, the protective shell and the second heating element can be disassembled and removed, while the pipe body is bent and stored to reduce the volume of the injection device, thereby improving the convenience of moving and transporting the injection device.

[0039] Optionally, the liquid injection device also includes a liquid storage container, which is arranged opposite to the liquid inlet, and the outside of the liquid storage container is provided with a heat insulation layer;

[0040] And / or, the liquid storage container is provided with a communication port communicating with its interior, the communication port being sealed with a sealing plug; the sealing plug is provided with an insertion slot, the insertion slot being configured to allow one end of the infusion tube having an inlet to pass through and extend into the liquid storage container;

[0041] And / or, the injection device further includes a support platform and a drive unit, the support platform and the inlet being disposed opposite to each other, the support platform being configured to hold a liquid storage container; the drive unit being configured to drive at least one of the support platform and the end of the inlet tube having the inlet to move in a direction toward and away from the other.

[0042] And / or, the injection device also includes a weighing container, which is arranged opposite to the outlet.

[0043] Therefore, by setting an insulation layer on the outside of the liquid storage container, the heating efficiency of the extracted liquid is improved; a sealing plug is set at the connection port of the liquid storage container, and an insertion slot is set on the sealing plug, so that the sealing plug can provide a good seal for the liquid storage container when the suction needle is not inserted into the liquid storage container, while allowing the suction needle to be inserted at the same time; the setting of the support platform and the driving component can realize the automatic insertion and docking of the infusion tube and the liquid storage container; the setting of the weighing container can facilitate the control of the amount of liquid to be extracted.

[0044] This application also proposes a battery production system, including the aforementioned liquid injection device. Attached Figure Description

[0045] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0046] Figure 1 This is a schematic diagram of the structure of an embodiment of the liquid injection device of this application;

[0047] Figure 2 for Figure 1 A schematic diagram of the structure of the liquid injection device containing a liquid storage container;

[0048] Figure 3 for Figure 1 A partial structural diagram of the liquid injection device;

[0049] Figure 4 for Figure 2 A schematic diagram of the cross-section of the infusion tube;

[0050] Figure 5 for Figure 2 A cross-sectional schematic diagram of the liquid storage container.

[0051] Explanation of icon numbers:

[0052]

[0053]

[0054] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0055] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0056] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0057] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0058] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the word "and / or" throughout the text means including three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0059] Electrolyte is a crucial component of a battery, serving as a carrier for ion transport during charging and discharging. In related technologies, electrolytes can include various solvents. Therefore, an electrolyte can be prepared by extracting and mixing different solvents in a predetermined ratio using a liquid injection device.

[0060] However, some solvents will crystallize at room temperature. This crystallization can easily cause blockages in the dispensing device, thus affecting the dispensing process.

[0061] Therefore, based on the above considerations, in order to solve the problem of clogging caused by solvent crystallization due to temperature in related technologies, this application proposes a novel liquid injection device. This device innovatively designates at least one end of the inlet tube of the delivery pipe as a heating section, thus combining extraction and heating functions. This allows the solvent to be extracted to be heated, transforming it from a crystalline state to a liquid state before extraction, thereby reducing the possibility of clogging due to crystallization and improving the stability of the liquid injection process.

[0062] Additionally, it should be noted that the liquid injection device in this application can be used for extracting and injecting electrolyte, for example, extracting solvent from various storage containers and injecting it into a weighing container to prepare electrolyte according to a preset ratio. Of course, the liquid injection device can also be used for extracting and injecting other liquids. This application does not limit the type of liquid to be extracted using the liquid injection device, as long as it involves extraction and injection that requires heating.

[0063] The structure of the liquid injection device proposed in this application will be explained and illustrated below with examples:

[0064] Please refer to the reference. Figure 1 and Figure 3 In one embodiment of this application, the liquid injection device 100 proposed in this application includes an infusion pipe 10 and a power pump 20. The infusion pipe 10 is provided with an inlet 13a and an outlet 111a. The pipe section of the infusion pipe 10 with at least an inlet 13a is configured as a heating section. The power pump 20 is connected to the infusion pipe 10.

[0065] The infusion tube 10 can form a channel for conveying the liquid to be extracted between the inlet 13a and the outlet 111a. The inlet 13a can be located at one end of the infusion tube 10, and the outlet 111a can be located at the other end, thereby improving the space utilization of the channel formed inside the infusion tube 10 for the liquid to be extracted. Please refer to the reference... Figure 2The inlet 13a can be connected to the storage container 50 described below, and the outlet can be connected to the weighing container 90 or another storage container 50 described below, thereby enabling the liquid to be drawn from one storage container 50 and injected into the weighing container 90 or another storage container 50. Furthermore, there can be one inlet 13a, or the end of the infusion pipe 10 with the inlet 13a can be branched to form at least two branches with corresponding inlets 13a. Similarly, there can be one outlet 111a, or the end of the infusion pipe 10 with the outlet 111a can be branched to form at least two branches with corresponding outlets 111a. Additionally, the section of the infusion pipe 10 with at least one inlet 13a is configured as a heating section; that is, the infusion pipe 10 can be configured as a heating section only for the portion with the inlet 13a, or the entire section can be configured as a heating section. The heating section, as described below, is formed directly from an electric heating element, or it includes an electric heating element to form a section with heating function. Furthermore, the 10 infusion tubes can have a structure including a main pipe 11 with different cross-sectional areas and a suction needle 13, as described below. In this case, the inlet 13a and outlet 111a can be respectively located on the suction needle 13 and the main pipe 11. Alternatively, the 10 infusion tubes can also have a structure consisting only of the main pipe 11, in which case both the inlet 13a and outlet 111a can be located on the main pipe 11.

[0066] The power pump 20 can be used to provide power to drive the liquid to be extracted from the inlet 13a into the infusion tube 10, and then discharge it from the outlet 111a.

[0067] The liquid injection device 100 of this application configures a section of the infusion pipe 10 with at least one inlet 13a as a heating section, so that the end of the infusion pipe 10 with the inlet 13a can be heated when it is inserted into the liquid to be extracted. At this time, crystals in the liquid to be extracted can be converted into liquid before extraction, and the liquid to be extracted is kept as liquid in the infusion pipe 10, thereby reducing the possibility of the liquid injection device 100 being blocked by crystals and improving the stability of liquid injection.

[0068] Please refer to the reference. Figure 1 and Figure 3 In one embodiment of this application, the infusion tube 10 includes a main pipe 11 and a suction needle tube 13. The main pipe 11 is provided with an outlet 111a and a power pump 20 is connected to the main pipe 11. The suction needle tube 13 is provided with an inlet 13a and is connected to the main pipe 11. At least the suction needle tube 13 in the infusion tube 10 is configured as a heating section.

[0069] The main conduit 11 can be located downstream of the suction needle 13, and the cross-sectional area of ​​the suction needle 13 can be smaller than that of the main conduit 11. Specifically, when there is one inlet 13a as described above, the number of suction needles 13 can be one. When there are at least two inlets 13a as described above, the number of suction needles 13 can be at least two. Similarly, when there is one outlet 111a as described above, the number of main conduits 11 can be one. When there are at least two outlets 111a as described above, the number of main conduits 11 can be at least two. Furthermore, the main conduit 11 can be formed as a heating section with a heating function, or it can simply have an infusion function.

[0070] In this embodiment, the infusion tube 10 is configured to include a main tube 11 and a suction needle 13, so that the suction needle 13 with a relatively small cross-sectional area can be easily fitted and inserted into the liquid storage container 50 storing the liquid to be extracted, while the main tube 11 with a relatively large cross-sectional area can improve the delivery efficiency of the liquid to be extracted, and at the same time improve the convenience of connecting with the power pump 20.

[0071] Please refer to Figure 3 In one embodiment of this application, the aspiration needle 13 is a first heating element 131, so that the aspiration needle 13 is configured as a heating section.

[0072] The first heating element 131 is an object that can generate heat after being energized. In this case, the first heating element 131 can be a cylindrical structure with open ends, forming a liquid inlet 13a at one end and connecting to the main pipe 11 at the other end. Further, the first heating element 131 can be a resistance heating element. For example, it could be an alloy or semiconductor with relatively high resistance, or a heating element. Of course, the first heating element 131 can also be an electromagnetic induction heating element. For example, the first heating element 131 can include a magnetic conductor and an induction coil sleeved on the outside of the magnetic conductor. In this case, the magnetic conductor can be a cylindrical structure with open ends, forming a liquid inlet 13a at one end and connecting to the main pipe 11 at the other end. Therefore, this application does not limit the type of the first heating element 131, as long as it can generate heat after being energized to heat the liquid to be extracted.

[0073] In this embodiment, the aspiration needle 13 is formed directly from the first heating element 131, which allows for more thorough contact with the liquid to be extracted, thereby improving the heating effect on the liquid. Simultaneously, the structure of the aspiration needle 13 is relatively simple, which also facilitates its manufacturing and reduces its size.

[0074] Of course, in addition to being directly formed from the first heating element 131, in another embodiment of this application, the aspiration needle 13 can also be configured to include a needle body and the first heating element 131. In this case, the needle body has an inlet 13a and is connected to the main pipe 11; the first heating element 131 is disposed on the needle body so that the aspiration needle 13 is configured as a heating section. The first heating element 131 can be disposed on the outside of the needle body, or disposed in the channel of the needle body, or embedded in the channel wall of the needle body. The shape of the first heating element 131 can be annular around the circumference of the needle body; it can also be plate-shaped or columnar. In this case, the number of the first heating elements 131 can be one or two, and they can be spaced apart around the circumference of the needle body. In addition, the first heating element 131 can be a resistive heating element as described above, such as an alloy or semiconductor with relatively large resistance, or a heating plate or heating wire. Of course, the first heating element 131 can also be a heating film or a PTC heating element, etc.

[0075] In this embodiment, the aspiration needle 13 is configured to include a needle body and a first heating element 131, so that the needle body can provide a better connection point to the main pipe 11, thereby improving the convenience of communication between the aspiration needle 13 and the main pipe 11.

[0076] Please refer to Figure 3 In one embodiment of this application, the liquid injection device 100 further includes a first temperature control switch 30A, which is electrically connected to the first heating element 131.

[0077] The first temperature control switch 30A can be used to control the heating temperature of the first heating element 131. For example, when the temperature setting of the first temperature control switch 30A is 50℃, it can control the first heating element 131 to maintain a temperature of 50℃. The first temperature control switch 30A may have only one temperature setting, or it may have at least two temperature settings.

[0078] In this embodiment, controlling the heating temperature of the first heating element 131 by the first temperature control switch 30A helps to achieve constant temperature heating of the liquid to be extracted, reducing the possibility of evaporation caused by excessively high heating temperature of the liquid to be extracted.

[0079] Please refer to Figure 3 In one embodiment of this application, the number of aspiration needles 13 is at least two, and the at least two aspiration needles 13 are respectively connected to the main body pipe 11.

[0080] In this embodiment, the number of aspiration needles 13 is set to at least two, so that when facing liquids to be extracted that need to be extracted with different components for injection preparation, liquids to be extracted with different components can be extracted by at least two aspiration needles 13, thereby realizing rapid injection preparation of liquids including at least two groups of components.

[0081] Please refer to the reference. Figure 1 and Figure 3 In one embodiment of this application, the main pipeline 11 includes a manifold 111 and at least two branch sections 113. The manifold 111 is provided with an outlet 111a. The at least two branch sections 113 are respectively connected to the manifold 111, and each aspiration needle 13 is connected to one branch section 113.

[0082] The manifold 111 can be located downstream of at least two branch sections 113 to receive the liquid to be extracted from at least two branch sections 113. The branch sections 113 can be connected to corresponding suction needles 13 to receive the liquid to be extracted from the corresponding suction needle 13. The power pump 20 can be connected to the manifold 111, or it can be connected to the branch sections 113 as described below.

[0083] In this embodiment, the main pipeline 11 includes a confluence section 111 and at least two branch sections 113, so that the number of liquid outlets 111a is uniform, thereby facilitating the control of its alignment and connection with the weighing container 90 or the liquid storage container 50.

[0084] Please refer to Figure 3 In one embodiment of this application, the number of power pumps 20 is at least two, and each power pump 20 is connected to a branch segment 113.

[0085] In this embodiment, the power pump 20 and the branch section 113 are arranged in a one-to-one correspondence, so that the suction needle 13, which corresponds to the branch section 113, can work independently, thereby improving the flexibility of extracting and injecting different liquids.

[0086] Of course, in order to achieve the independence of operation of each suction needle 13, in another embodiment of this application, the number of main pipes 11 can be set to at least two, with each suction needle 13 connected to one main pipe 11; the number of power pumps 20 is at least two, with each power pump 20 connected to one main pipe 11.

[0087] In one embodiment of this application, the main pipe 11 is a second electric heating element 117, so that the main pipe 11 is configured as a heating section.

[0088] In the case where the main pipe 11 includes a confluence section 111 and a branch section 113 as described above, only one of the confluence section 111 and the branch section 113 may be configured as the second heating element 117, so that a portion of the main pipe 11 is formed as a heating section. Alternatively, both the confluence section 111 and the branch section 113 may be configured as the second heating element 117, so that the entire main pipe 11 is formed as a heating section. Furthermore, the second heating element 117 is an object that can generate heat after being energized. At this time, the second heating element 117 can be a cylindrical structure with open ends. When the confluence section 111 is configured as the second heating element 117, one end is opened to form a liquid outlet 111a, and the other end is used to communicate with the branch section 113. When the branch section 113 is configured as the second heating element 117, one end is opened to communicate with the suction needle tube 13, and the other end is used to communicate with the confluence section 111. When both the confluence section 111 and the branch section 113 are configured as the second heating element 117, one end is opened to form a liquid outlet 111a, and the other end is used to communicate with the suction needle tube 13. Further, the second heating element 117 can be a resistance heating element. For example, it can be an alloy or semiconductor with relatively high resistance, or a heating element. Of course, the second heating element 117 can also be an electromagnetic induction heating element. For example, the second heating element 117 can include a magnetic conductor and an induction coil sleeved on the outside of the magnetic conductor. At this time, the magnetic conductive element can be a cylindrical structure with open ends. It is evident that this application does not limit the type of the second heating element 117, as long as it can generate heat after being energized to heat the liquid to be extracted.

[0089] In this embodiment, at least a portion of the main pipe 11 is also configured as a heating section, allowing the liquid to be extracted to be heated within the main pipe 11. This reduces the possibility of cooling and crystallization during the transport of the liquid within the main pipe 11, thereby improving the liquid retention effect within the transport pipe and further enhancing the stability of the liquid injection device 100. Furthermore, the main pipe 11 is formed directly from the second heating element 117, ensuring sufficient contact with the liquid to be extracted, which further improves the heating effect. Simultaneously, the structure of the main pipe 11 is relatively simple, which also facilitates its manufacturing and reduces its size.

[0090] Of course, in addition to being directly formed by the second heating element 117, the main pipe 11 can also be formed by the second heating element 117. Please refer to another embodiment of this application. Figure 4Alternatively, the main pipe 11 can be configured to include a pipe body 115 and a second heating element 117. In this case, the pipe body 115 has a liquid outlet 111a, and the suction needle 13 and the power pump 20 are both connected to the pipe body 115; the second heating element 117 is disposed on the pipe body 115, so that the main pipe 11 is configured as a heating section. The second heating element 117 can be disposed on the outside of the pipe body 115, or it can be disposed within the channel of the pipe body 115, or it can be embedded in the channel wall of the pipe body 115. The shape of the second heating element 117 can be annular around the circumference of the pipe body 115; it can also be plate-shaped or columnar. In this case, the number of second heating elements 117 can be one, or two, and they can be spaced apart along the circumference of the pipe body 115. Furthermore, the second heating element 117 can be a resistance heating element, as described above, such as an alloy or semiconductor with relatively high resistance, or a heating plate or heating wire, etc. Of course, the second heating element 117 can also be a heating film or a PTC heating element, etc. Furthermore, it should be noted that the main pipe 11 described above, including the confluence section 111 and the branch section 113, is a division along the extension direction of the main pipe 11. Here, the main pipe 11 includes the pipe body 115 and the second heating element 117, which is a division along the radial direction of the main pipe 11. Therefore, it can be said that the confluence section 111 and the branch section 113 in the main pipe 11 can at least include the pipe body 115 and the second heating element 117.

[0091] In this embodiment, the liquid suction pipe body 115 is configured to include the pipe body 115 and the second electric heating element 117, so that the pipe body 115 can provide a better connection position and connect the liquid suction needle tube 13 and the power pump 20, thereby improving the convenience of communication between the main pipe 11, the power pump 20 and the liquid suction needle tube 13.

[0092] Please refer to Figure 4 In one embodiment of this application, the liquid injection device 100 further includes a second temperature control switch 30B, which is electrically connected to the second heating element 117.

[0093] The second temperature control switch 30B can be used to control the heating temperature of the second heating element 117. For example, when the temperature setting of the second temperature control switch 30B is 50°C, it can control the second heating element 117 to maintain a temperature of 50°C when it reaches 50°C. The second temperature control switch 30B may have only one temperature setting, or it may have at least two temperature settings.

[0094] In this embodiment, controlling the heating temperature of the second heating element 117 by the second temperature control switch 30B helps to achieve constant temperature heating of the liquid to be extracted located in the main pipe 11, reducing the possibility of evaporation caused by excessively high heating temperature of the liquid to be extracted.

[0095] Please refer to Figure 4 In one embodiment of this application, when the main pipe 11 includes a pipe body 115 and a second heating element 117, the second heating element 117 may be disposed on the outside of the pipe body 115.

[0096] In this embodiment, the second heating element 117 is disposed on the outside of the pipe body 115, which facilitates its arrangement and does not obstruct the flow of the liquid to be extracted within the pipe body 115.

[0097] Please refer to the reference. Figure 1 and Figure 4 In one embodiment of this application, the liquid injection device 100 further includes a protective shell 40, and the pipe body 115 and the second heating element 117 are both disposed inside the protective shell 40.

[0098] The protective shell 40 can be made of insulating materials such as plastic, and an exposure port is provided at the position where the liquid outlet 111a is formed in the main pipe 11. In addition, the protective shell 40 can be a one-piece structure, or it can be a split structure including multiple sub-shells 41 as described below.

[0099] In this embodiment, a protective shell 40 is provided on the outside of the main pipe 11, which can isolate and protect the main pipe 11, thereby reducing the possibility of damage to it by external objects and leakage accidents.

[0100] Please refer to Figure 4 In one embodiment of this application, the pipe body 115 is a flexible hose, and the protective shell 40 includes at least two sub-shells 41, which are detachably connected and enclose an installation space 40a. The pipe body 115 and the second heating element 117 are both disposed in the installation space 40a, and the second heating element 117 is connected to at least one sub-shell 41.

[0101] The hose, or pipe body 115, can be bent and deformed. The protective shell 40 contains two, three, or more sub-shells 41, which can be distributed circumferentially along the hose. Furthermore, the sub-shells 41 are detachably connected, meaning they can be separated after assembly without damaging the connection structure. The sub-shells 41 can be connected by screws, clips, or other means; this application does not limit the connection method between the sub-shells 41.

[0102] In this embodiment, the pipe body 115 is configured as a flexible hose, and the protective shell 40 is divided into at least two sub-shells 41, which are detachably connected. The second heating element 117 is also disposed on the sub-shell 41. At this time, the protective shell 40 and the second heating element 117 can be removed, and the pipe body 115 can be bent and folded for storage, thereby reducing the volume of the injection device 100 and improving the convenience of moving and transporting the injection device 100.

[0103] Please refer to the reference. Figure 1 and Figure 2 In one embodiment of this application, the liquid injection device 100 further includes a liquid storage container 50, which is disposed opposite to the liquid inlet 13a, and the outer side of the liquid storage container 50 is provided with a heat insulation layer 60.

[0104] The liquid storage container 50 can be used to store the liquid to be extracted. When the injection device 100 is in normal use, the liquid storage container 50 can be positioned below the liquid inlet 13a. The insulation layer 60 serves as insulation. The insulation layer 60 can be a cylindrical structure open at both ends or open at one end, ensuring it can be fitted over the outside of the liquid storage container 50. Alternatively, the insulation layer 60 can be directly connected to the liquid storage container 50, or it can be connected to the support platform 70 for placing the liquid storage container 50, as described below. Furthermore, when at least two suction needles 13 are provided in the infusion tube 10 as described above, the number of liquid storage containers 50 can also be at least two, corresponding one-to-one with the suction needles 13. At this point, an insulation layer 60 can be applied to the outside of one liquid storage container 50, or it can be applied to the outside of two or more liquid storage containers 50, or all liquid storage containers 50 can share a single insulation layer 60. Furthermore, the insulation layer 60 can be made of polymer or flexible aerogel material, ensuring it provides adequate insulation.

[0105] In this embodiment, by providing a heat insulation layer 60 on the outside of the liquid storage container 50, the possibility of heat loss from the periphery of the liquid storage container 50 can be reduced when the suction needle 13 of the infusion tube 10 heats the liquid to be extracted located in the liquid storage container 50, thereby improving the heating efficiency of the extracted liquid.

[0106] Please refer to Figure 5 In one embodiment of this application, the liquid storage container 50 is provided with a communication port 50a communicating with its inner side, and the communication port 50a is sealed with a sealing plug 51; the sealing plug 51 is provided with an insertion slot 51a, which is configured to allow one end of the infusion tube 10 with an inlet port 13a to pass through and extend into the liquid storage container 50.

[0107] The sealing plug 51 can be a rubber gasket or a silicone gasket, sufficient to seal the connection port 50a of the liquid storage container 50. The insertion slit 51a allows the suction needle 13 of the infusion tube 10 to pass through. The insertion slit 51a can be in the shape of an "I" or a "cross".

[0108] In this embodiment, a sealing plug 51 is provided at the communication port 50a of the liquid storage container 50, and an insertion slit 51a is provided on the sealing plug 51, so that when the aspiration needle 13 is not inserted into the liquid storage container 50, the sealing plug 51 can play a good sealing role for the liquid storage container 50, while allowing the aspiration needle 13 to be inserted.

[0109] Please refer to Figure 1 In one embodiment of this application, the liquid injection device 100 further includes a support platform 70 and a drive member. The support platform 70 and the liquid inlet 13a are arranged opposite to each other. The support platform 70 is configured to place the liquid storage container 50. The drive member is configured to drive at least one of the support platform 70 and the end of the infusion tube 10 with the liquid inlet 13a to move in a direction closer to and further away from the other.

[0110] The support platform 70 can be a plate structure or a seat structure. When the injection device 100 is in normal use, the support platform 70 can be horizontally positioned to stably support the liquid storage container 50. The driving component can provide driving force to move at least one of the support platform 70 and the suction needle 13 of the infusion tube 10 in the vertical direction. When the driving component is used to move only one of the support platform 70 and the suction needle 13 of the infusion tube 10, the driving component can be a cylinder, or a linear module or linear motor, etc. When the driving component is used to move both the support platform 70 and the suction needle 13 of the infusion tube 10, the driving component can include a motor, a driving gear, and two driven racks. The driving gear can be connected to the motor, and the two driven gears can be respectively connected to the support platform 70 and the suction needle 13 of the infusion tube 10, respectively meshing with opposite sides of the driving gear. Therefore, this application does not limit the structural type of the driving component.

[0111] In this embodiment, a support platform 70 is provided to facilitate the placement of the liquid storage container 50. Furthermore, a driving component is provided to automatically insert the suction needle 13 of the infusion tube 10 into the liquid storage container 50, thereby improving the automation level of the injection device 100. Furthermore, to enable the injection device 100 to be assembled into a single unit for use, and to improve the compactness of the assembly distribution between various mechanisms, in one embodiment of this application, the injection device 100 also includes a frame 80. The infusion tube 10 can be mounted on the frame 80, the support platform 70 can be slidably connected to the frame 80, and a cylinder can be mounted on the frame 80 and located on the side of the support platform 70 facing away from the suction needle 13 of the infusion tube 10, to drive the support platform 70 to move in directions towards and away from the suction needle 13.

[0112] Please refer to Figure 1 In one embodiment of this application, the liquid injection device 100 further includes a weighing container 90, which is disposed opposite to the liquid outlet 111a.

[0113] The weighing container 90 can be used to receive and weigh the liquid to be extracted discharged from the outlet 111a. The weighing container 90 may be equipped with a weight sensor and / or liquid level scale.

[0114] In this embodiment, the weighing container 90 can be used to weigh and calculate the amount of liquid to be extracted, thereby facilitating the control of the amount of liquid to be extracted.

[0115] Please refer to the reference. Figures 1 to 5In one embodiment of this application, the injection device 100 includes an infusion tube 10 and a power pump 20. The infusion tube 10 has an inlet 13a and an outlet 111a. At least one section of the infusion tube 10 with the inlet 13a is configured as a heating section. The power pump 20 is connected to the infusion tube 10. The infusion tube 10 includes a main pipe 11 and a suction needle 13. The main pipe 11 has an outlet 111a, and the power pump 20 is connected to the main pipe 11. The suction needle 13 has an inlet 13a and is connected to the main pipe 11. At least one suction needle 13 in the infusion tube 10 is configured as a heating section. The suction needle 13 is a first heating element 131, so that the suction needle 13 is configured as a heating section. The injection device 100 also includes a first temperature control switch 30A, which is electrically connected to the first heating element 131. The number of aspiration needles 13 is at least two, and the at least two aspiration needles 13 are respectively connected to the main pipe 11. The main pipe 11 includes a manifold 111 and at least two branch sections 113. The manifold 111 is provided with an outlet 111a; the at least two branch sections 113 are respectively connected to the manifold 111, and each aspiration needle 13 is connected to one branch section 113. The number of power pumps 20 is at least two, and each power pump 20 is connected to one branch section 113. The main pipe 11 includes a pipe body 115 and a second heating element 117. The pipe body 115 is provided with an outlet 111a. The aspiration needles 13 and the power pumps 20 are both connected to the pipe body 115; the second heating element 117 is provided on the pipe body 115 so that the main pipe 11 is configured as a heating section. The liquid injection device 100 also includes a second temperature control switch 30B, which is electrically connected to the second heating element 117. The second heating element 117 is located outside the pipe body 115; the liquid injection device 100 also includes a protective shell 40, in which both the pipe body 115 and the second heating element 117 are disposed. The pipe body 115 is a flexible hose, and the protective shell 40 includes at least two sub-shells 41, which are detachably connected and enclose an installation space 40a; both the pipe body 115 and the second heating element 117 are disposed within the installation space 40a, and the second heating element 117 is connected to at least one sub-shell 41.The injection device 100 also includes a liquid storage container 50, which is arranged opposite to the liquid inlet 13a. The outer side of the liquid storage container 50 is provided with a heat insulation layer 60. The liquid storage container 50 is provided with a connecting port 50a that connects to its inner side. The connecting port 50a is sealed with a sealing plug 51. The sealing plug 51 is provided with an insertion slit 51a, which is configured to allow one end of the infusion tube 10 with the liquid inlet 13a to pass through and extend into the liquid storage container 50. The injection device 100 also includes a support platform 70 and a driving member. The support platform 70 is arranged opposite to the liquid inlet 13a and is configured to place the liquid storage container 50. The driving member is configured to drive at least one of the support platform 70 and the end of the infusion tube 10 with the liquid inlet 13a to move in a direction closer to and further away from the other. The injection device 100 also includes a weighing container 90, which is arranged opposite to the liquid outlet 111a.

[0116] This application also proposes a battery production system, which includes a liquid injection device 100. The specific structure of the liquid injection device 100 is as described in the above embodiments. Since this battery production system adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, and will not be described in detail here. The battery production system may further include a pipetting device to further transfer the prepared electrolyte extracted by the liquid injection device 100 into the battery.

[0117] The above description is merely a preferred embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the inventive concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. A liquid injection device, characterized in that, include: An infusion tube is provided with an inlet and an outlet, and at least one section of the infusion tube with the inlet is configured as a heating section. and A power pump, which is connected to the infusion tubing; The infusion tubing includes: The main pipeline has the liquid outlet, and the power pump is connected to the main pipeline; and A suction needle tube is provided with the inlet and is connected to the main pipe. At least the suction needle tube in the infusion tube is configured as the heating section.

2. The liquid injection device as described in claim 1, characterized in that, The suction needle is a first heating element, so that the suction needle is configured as the heating section body; Alternatively, the aspiration needle includes a needle body and a first heating element. The needle body has the liquid inlet and is connected to the main pipe. The first heating element is disposed on the needle body so that the aspiration needle is configured as the heating section.

3. The liquid injection device as described in claim 2, characterized in that, The liquid injection device further includes a first temperature control switch, which is electrically connected to the first heating element.

4. The liquid injection device as described in claim 1, characterized in that, The number of the aspiration needles is at least two, and the at least two aspiration needles are respectively connected to the main tube.

5. The liquid injection device as described in claim 4, characterized in that, The main pipeline includes: The manifold section, wherein the manifold section is provided with the liquid outlet; and At least two branch segments, each of the at least two branch segments being connected to the confluence segment, and each of the aspiration needles being connected to one of the branch segments.

6. The liquid injection device as described in claim 5, characterized in that, The number of power pumps is at least two, and each power pump is connected to one of the branch sections.

7. The liquid injection device as described in claim 4, characterized in that, The number of main channels is at least two, and each of the aspirating needles is connected to one of the main channels; The number of power pumps is at least two, and each power pump is connected to one of the main pipelines.

8. The liquid injection device as described in claim 1, characterized in that, The main pipe is a second electric heating element, so that the main pipe is configured as the heating section body; Alternatively, the main pipeline includes a pipeline body and a second electric heating element. The pipeline body is provided with the liquid outlet, and the liquid suction needle and the power pump are both connected to the pipeline body. The second electric heating element is provided on the pipeline body so that the main pipeline is configured as the heating section.

9. The liquid injection device as described in claim 8, characterized in that, The liquid injection device also includes a second temperature control switch, which is electrically connected to the second heating element.

10. The liquid injection device as described in claim 8, characterized in that, The main pipeline includes a pipeline body and a second electric heating element, the second electric heating element being located on the outside of the pipeline body; The liquid injection device also includes a protective shell, and the pipe body and the second heating element are both disposed inside the protective shell.

11. The liquid injection device as described in claim 10, characterized in that, The pipe body is a flexible hose, and the protective shell includes at least two sub-shells, which are detachably connected and enclose an installation space. Both the pipe body and the second heating element are located within the installation space, and the second heating element is connected to at least one of the sub-shells.

12. The liquid injection device according to any one of claims 1 to 11, characterized in that, The liquid injection device also includes a liquid storage container, which is arranged opposite to the liquid inlet, and the outside of the liquid storage container is provided with a heat insulation layer; And / or, the liquid storage container is provided with a communication port communicating with its interior, the communication port being sealed with a sealing plug; the sealing plug is provided with an insertion slit, the insertion slit being configured to allow one end of the infusion tube having the inlet to pass through and extend into the liquid storage container; And / or, the injection device further includes a support platform and a drive unit, the support platform and the inlet being disposed opposite to each other, the support platform being configured to hold a liquid storage container; the drive unit is configured to drive at least one of the support platform and the end of the infusion tube having the inlet to move in a direction toward and away from the other. And / or, the liquid injection device further includes a weighing container, which is disposed opposite to the liquid outlet.

13. A battery production system, characterized in that, Includes the liquid injection device as described in any one of claims 1 to 12.

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