Battery liquid injection device and battery liquid injection system

Abstract

The utility model relates to the technical field of battery assembly, and discloses a battery liquid injection device and a battery liquid injection system.The battery liquid injection device comprises an electrolyte container, a liquid injection mechanism and a moving mechanism, and the electrolyte container is provided with a containing cavity used for containing electrolyte; the liquid injection mechanism comprises a liquid conveying assembly and a liquid injection assembly, the liquid conveying assembly is matched with the electrolyte container and communicates with the containing cavity through a pipette, the liquid injection assembly is located on one side of the liquid conveying assembly and connected with the liquid conveying assembly, and the liquid injection assembly is provided with a liquid injection end; the moving mechanism comprises a bearing part, a base and a driving assembly, the bearing part is slidably arranged on the base through the driving assembly, and the bearing part is provided with a bearing position used for bearing an electrolyte container. According to the structure, the liquid conveying assembly is arranged in the electrolyte container, and the liquid injection assembly is connected with the liquid conveying assembly, so that the whole liquid injection mechanism can be synchronously linked with the electrolyte container, the liquid injection end moves for liquid injection, and the problems that an existing small battery liquid injection device is low in efficiency and poor in stability are effectively solved.

Description

Technical Field

[0001] This utility model relates to the field of battery assembly technology, specifically to a battery liquid injection device and a battery liquid injection system. Background Technology

[0002] With technological advancements, button cells have become increasingly popular in various wearable electronic devices due to their advantages such as small size, light weight, high energy density, long lifespan, and stable performance, as well as their ability to significantly reduce device space requirements and thus lower overall device weight. As the market demand for button cells grows, the research and development of their manufacturing technologies becomes even more crucial.

[0003] Currently, the liquid injection operation in the existing button cell manufacturing process mainly relies on liquid injection devices with complex structures and large volumes. This type of liquid injection device is mainly used in automated production processes in factories and cannot be used in battery assembly processes in laboratories. On the other hand, the small battery liquid injection devices in the existing technology require manual movement of the battery to assist in the liquid injection process, which is time-consuming, labor-intensive, and results in a low yield of assembled batteries. Utility Model Content

[0004] In view of this, the present invention provides a battery liquid injection device and a battery liquid injection system to solve the problems of low efficiency and poor stability of existing small battery liquid injection devices.

[0005] In a first aspect, this utility model provides a battery electrolyte filling device, including an electrolyte container, an filling mechanism, and a moving mechanism. The electrolyte container has a receiving cavity for containing electrolyte. The filling mechanism includes a delivery component and a filling component. The delivery component has a first pipette. The delivery component is adapted to the electrolyte container and communicates with the receiving cavity through the first pipette. The filling component is located on one side of the delivery component and connected to the delivery component. The filling component has a filling end. The moving mechanism includes a support part, a base, and a driving component. The support part is slidably disposed on the base through the driving component. The support part has a support position for supporting the electrolyte container.

[0006] The battery injection device of this embodiment, by placing the infusion assembly on the electrolyte container and connecting the injection assembly with the infusion assembly, enables the entire injection mechanism to move synchronously with the electrolyte container. The electrolyte container is then installed on the support position. When the drive assembly drives the support part to slide on the base, it drives the electrolyte container to slide, thereby driving the injection mechanism to move synchronously, so that the injection end slides between different batteries, realizing automatic injection. This effectively solves the problems of low efficiency and poor stability of existing small battery injection devices.

[0007] In one alternative embodiment, the drive assembly includes a second drive member and a second control unit. The second drive member is disposed on the support portion or the base, and the second control unit is disposed on the base and electrically connected to the second drive member.

[0008] Beneficial effects: The second control unit is electrically connected to the second drive unit to control the opening and closing state of the second drive unit and the moving speed of the carrier unit relative to the base, which is convenient to adapt to different battery spacing or liquid discharge rate.

[0009] In one alternative embodiment, the carrier portion has a locking component corresponding to the carrier position. The locking component has a locked state that fixes the electrolyte container to the carrier position and an unlocked state that allows the electrolyte container to be removed from the carrier position.

[0010] Beneficial effects: By setting a locking component, the electrolyte container is fixed to the bearing position, so that the injection mechanism is also relatively fixed, improving the stability of the injection operation.

[0011] In one alternative embodiment, a guide structure is provided at the top of the base, and a corresponding mating structure is provided at the bottom of the support portion, with the guide structure and the mating structure engaging in a guiding fit.

[0012] Beneficial effects: The guide structure guides the movement of the carrier, enabling the electrolyte container and the injection mechanism to move along a preset path, facilitating stable movement between batteries for injection. At the same time, the cooperation between the mating structure and the guide structure further improves the stability of the movement process.

[0013] In one optional embodiment, the infusion assembly includes a sealing element, a first pipette, a first control unit, and a first drive unit. The top of the electrolyte container is provided with a connection port. The sealing element is detachably disposed at the connection port. The first pipette passes through the sealing element at least partially and extends into the receiving cavity. The input end of the first drive unit is connected to the first pipette, and the output end is connected to the infusion assembly. The first control unit is disposed on one side of the first drive unit and is electrically connected to the first drive unit.

[0014] Beneficial effects: The first driving component is connected to the first pipette, which extends into the receiving cavity, so that the first driving component can move the electrolyte to the injection end through the first pipette for battery injection. The first control unit is electrically connected to the first driving component to control the specific settings such as the rate and time interval of electrolyte delivery by the first driving component, which facilitates the injection operation. At the same time, the sealing component can seal the opening of the electrolyte container to isolate the electrolyte from the outside world during the injection operation, avoiding pollution and waste caused by the electrolyte, and also reducing the rate of increase of hydrofluoric acid and water content in the electrolyte.

[0015] In one optional embodiment, the infusion assembly further includes a second pipette, the output end of the first drive unit is connected to the infusion assembly through the second pipette, the second pipette has a first tube segment and a second tube segment, the extension directions of the two tube segments intersect.

[0016] Beneficial effects: By setting a second pipette at the output end of the first drive unit and connecting it to the liquid injection assembly, and by setting an intersecting first pipe section and a second pipe section for the second pipette, the space utilization of the device can be improved, and the problem of mismatch between the liquid injection end and the battery position height can be solved.

[0017] In one optional embodiment, the injection assembly includes a plurality of injection devices, each with a switch on its infusion path, and the switch is electrically connected to a first control unit.

[0018] Beneficial effects: The device is equipped with multiple injectors to allow it to inject liquid into multiple batteries simultaneously, improving injection efficiency. It is also easy to adapt to common battery trays. Furthermore, the first control unit directly controls the opening and closing of the switch to precisely control the injection volume.

[0019] In one alternative embodiment, a flow sensor is also provided on the infusion path of the injector, and the flow sensor is electrically connected to the first control unit.

[0020] Beneficial effects: The flow sensor facilitates further confirmation of the accuracy of the battery electrolyte filling volume and provides effective data support for the first control unit.

[0021] In one alternative implementation, there are multiple injectors, which are spaced apart along a direction away from the electrolyte container.

[0022] Beneficial effects: Multiple injectors are spaced apart along the direction away from the electrolyte container, which can match the distribution and movement direction of the injectors with the position and arrangement direction of the batteries on the battery tray, making it easier to inject electrolyte.

[0023] In one alternative embodiment, the injection mechanism further includes a mounting bracket disposed on the electrolyte container, at least a portion of which extends away from the electrolyte container and is connected to the injector.

[0024] Beneficial effects: The fixing bracket secures the injector, ensuring stable injection during the injection process and preventing the movement of the support components from affecting the injector.

[0025] Secondly, this utility model also provides a battery electrolyte filling system, including a battery tray and the aforementioned battery electrolyte filling device, with an electrolyte container fixed and cooperating with the battery tray. Because this battery electrolyte filling system includes the aforementioned battery electrolyte filling device, it has the same technical effects as the battery electrolyte filling device, and will not be elaborated further here. Attached Figure Description

[0026] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0027] Figure 1 This is a front view of a battery electrolyte filling device according to an embodiment of the present invention;

[0028] Figure 2 for Figure 1 A cross-sectional view of the injector of the battery electrolyte filling device in the embodiment of the present invention is shown.

[0029] Figure 3 for Figure 1 A top view of the battery electrolyte filling device in the embodiment of the present invention.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Infusion mechanism; 11. Infusion assembly; 111. Sealing component; 112. First pipette; 113. Second pipette; 114. First control unit; 115. First drive component; 12. Infusion assembly; 121. Infuser; 1211. Switch; 1212. Flow sensor; 13. Mounting bracket;

[0032] 2. Moving mechanism; 21. Supporting part; 211. Locking assembly; 212. Mating structure; 22. Base; 221. Guide structure; 23. Second control unit;

[0033] 3. Electrolyte container;

[0034] 4. Battery tray. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0036] In related technologies, most of the battery electrolyte filling operations are completed in factories using large-scale automated electrolyte filling equipment. However, battery electrolyte filling devices used in laboratories usually require manual movement of the battery to complete the electrolyte filling process. This not only easily leads to electrolyte contamination, but also makes the electrolyte filling process time-consuming and labor-intensive.

[0037] The following is combined with Figures 1 to 3 The following describes embodiments of the present invention.

[0038] According to an embodiment of the present invention, a battery electrolyte filling device is provided, including an electrolyte container 3, an filling mechanism 1, and a moving mechanism 2. The electrolyte container 3 has a receiving cavity for containing electrolyte. The filling mechanism 1 includes a delivery component 11 and a filling component 12. The delivery component 11 is detachably disposed on the electrolyte container 3 and communicates with the receiving cavity. The filling component 12 is located on one side of the delivery component 11 and connected to the delivery component 11. The filling component 12 has a filling end. The moving mechanism 2 includes a support part 21, a base 22, and a driving component. The support part 21 is slidably disposed on the base 22 through the driving component. The support part 21 has a support position for supporting the electrolyte container 3.

[0039] The battery injection device of this embodiment, by setting the infusion assembly 11 on the electrolyte container 3 and connecting the infusion assembly 12 to the infusion assembly 11, enables the injection mechanism 1 to move synchronously with the electrolyte container 3. Then, the electrolyte container 3 is installed on the support position. When the drive assembly drives the support part 21 to slide on the base 22, it drives the electrolyte container 3 to slide, thereby driving the injection mechanism 1 to move synchronously, so that the injection end slides between different batteries, realizing automatic injection. This effectively solves the problems of low efficiency and poor stability of existing small battery injection devices.

[0040] It should be noted that the electrolyte container 3 is a device for storing electrolyte through a cavity. It can be a dedicated electrolyte storage structure in the battery filling device, or it can be a common electrolyte storage tank on the market. The bearing position and the infusion component 11 can be specifically set to correspond to the electrolyte container 3.

[0041] The infusion assembly 11 is detachably connected to the electrolyte container 3, meaning that the infusion assembly 11 can be removed from or installed on the electrolyte container 3 to facilitate electrolyte replacement. When the infusion assembly 11 is installed on the electrolyte container 3, the infusion assembly 11 and the electrolyte container 3 are relatively fixed, and the injection assembly 12 is connected to the infusion assembly 11, that is, the injection mechanism 1 can be relatively fixed to the electrolyte container 3 so that the injection mechanism 1 can move synchronously with the electrolyte container 3.

[0042] It is easy to understand that the electrolyte container 3 has an opening, and the infusion assembly 11 extends into the receiving cavity from the opening and is fixed to the electrolyte container 3 at the opening, so that the infusion assembly 11 and the electrolyte container 3 remain relatively fixed, thereby improving the stability of battery electrolyte injection.

[0043] In addition, the infusion assembly 11 should have a component that can provide driving force so that the electrolyte can move from the electrolyte container 3 to the injection assembly 12.

[0044] In addition, the end of the liquid injection assembly 12 away from the liquid injection end should be connected to the output end of the liquid infusion assembly 11 and be able to receive electrolyte to the liquid injection end. The liquid injection end is a component that can cooperate with the battery and inject electrolyte into the battery.

[0045] Specifically, the injection end may be provided with a closing structure for injection, the cross-sectional area of ​​which gradually decreases in the direction toward the battery.

[0046] It should also be noted that the moving mechanism 2 can drive the electrolyte container 3 to move. Specifically, it drives the bearing part 21 to move so as to move the electrolyte container 3 on the bearing position, thereby realizing the automatic movement of the liquid injection mechanism 1.

[0047] The support part 21 slides on the base 22 under the action of the drive component, and the connection structure between the support part 21 and the base 22 can be, but is not limited to, a guide rail, a screw, etc.

[0048] Furthermore, the support portion 21 slides linearly on the base 22 to adapt to the position of the battery and facilitate liquid injection.

[0049] In one embodiment, the drive assembly includes a second drive member and a second control unit 23. The second drive member is disposed on the support portion 21 or the base 22, and the second control unit 23 is disposed on the base 22 and electrically connected to the second drive member. Thus, by electrically connecting the second control unit 23 to the second drive member, the opening and closing states of the second drive member and the moving speed of the support portion 21 relative to the base 22 can be controlled, facilitating adaptation to different battery spacings or liquid dispensing rates.

[0050] It should be noted that the second driving component is the component that is connected to the bearing part 21 in a transmission manner and drives the bearing part 21 to slide. It can be, but is not limited to, a motor, an electric cylinder, etc.

[0051] The second driving component can be mounted on the support part 21 or on the base 22, depending on actual needs, and is not limited here.

[0052] In addition, the second control unit 23 is electrically connected to the second drive unit and is used to control the second drive unit. Specifically, it can control the opening and closing of the second drive unit, its operating power, and preset time, etc., which are not limited here.

[0053] To facilitate operation by staff, the second control unit 23 may be equipped with buttons and a display screen, so that staff can operate and set the device more intuitively through the display screen, thereby improving the reliability of the battery liquid filling device.

[0054] In one embodiment, the support portion 21 has a locking component 211 corresponding to the support position. The locking component 211 has a locked state that fixes the electrolyte container 3 to the support position, and an unlocked state that allows the electrolyte container 3 to be removed from the support position. This structure, by providing the locking component 211, fixes the electrolyte container 3 to the support position, thereby simultaneously fixing the injection mechanism 1 relative to it and improving the stability of the injection operation.

[0055] It should be noted that the locking component 211 is a component that can cooperate with the electrolyte container 3 to fix the electrolyte container 3 on the bearing position. Its specific structure can be configured in various ways, including but not limited to snap-fit, key, etc.

[0056] Furthermore, the locking assembly can be configured as a quick-release structure so that the electrolyte in the electrolyte container 3 can be quickly replaced after it is depleted, thereby improving work efficiency.

[0057] For details, please refer to Figures 1 to 3 The locking component 211 is an upward protrusion on the support part 21, which surrounds and forms a support position for mounting the electrolyte container 3. The protrusion blocks the movement or shaking of the electrolyte container 3 in the horizontal direction, which is beneficial to the stability of the electrolyte container 3 when the moving mechanism 2 is working, thereby improving the stability of the injection mechanism 1.

[0058] In one embodiment, a guide structure 221 is provided on the top of the base 22, and a corresponding mating structure 212 is provided on the bottom of the support part 21. The guide structure 221 and the mating structure 212 are guided and mated. The guide structure 221 guides the movement of the support part 21, so that the electrolyte container 3 and the liquid injection mechanism 1 can move along a preset path, facilitating stable movement between batteries for liquid injection. At the same time, the mating structure 212, in cooperation with the guide structure 221, further improves the stability of the movement process.

[0059] It should be noted that the guide structure 221 cooperates with the mating structure 212 to guide the bearing part 21 to move along the extension direction of the guide structure 221, thereby driving the electrolyte container 3 and the liquid injection mechanism 1 to move along the extension direction of the guide structure 221.

[0060] It is easy to understand that the mating relationship between the guide structure 221 and the mating structure 212 should be set so that the mating structure 212 can only move along the extension direction of the guide structure 221. That is, the mating structure 212 should be prevented from rotating or wobbling on the guide structure 221. In other words, the mating relationship between the two should have the function of stabilizing the direction of movement and preventing wobbling or rotation.

[0061] Optionally, the guide structure 221 and the mating structure 212 can be configured as a structure with a positioning element and a keyway, or a structure that can interlock with each other, etc., without specific limitations.

[0062] Further, see Figure 1 The mating structure 212 has a groove and is sleeved on the guide structure 221. The mating structure 212 and the guide structure 221 are fitted with a clearance so that the guide structure 221 can limit the movement of the mating structure 212 and restrict the movement direction of the mating structure 212.

[0063] In one embodiment, the infusion assembly 11 includes a sealing member 111, a first pipette 112, a first control unit 114, and a first drive unit 115. The top of the electrolyte container 3 is provided with a connection port. The sealing member 111 is detachably disposed at the connection port. The first pipette 112 passes through the sealing member 111 at least partially and extends into the receiving cavity. The input end of the first drive unit 115 is connected to the first pipette 112, and the output end is connected to the infusion assembly 12. The first control unit 114 is disposed on one side of the first drive unit 115 and is electrically connected to the first drive unit 115. The structure utilizes a first driving component 115 connected to a first pipette 112, with the first pipette 112 extending into the receiving cavity so that the first driving component 115 can move the electrolyte to the injection end through the first pipette 112 for battery injection. The first control unit 114 is electrically connected to the first driving component 115 to control the rate and time interval of electrolyte delivery by the first driving component 115, facilitating the injection operation. At the same time, the sealing component 111 can seal the opening of the electrolyte container 3, so that the electrolyte is isolated from the outside world during the injection operation, avoiding pollution and waste caused by the electrolyte, and reducing the rate of increase of hydrofluoric acid and water content in the electrolyte.

[0064] It should be noted that the sealing component 111 is a component that can seal the connection port of the electrolyte container 3. The sealing can be achieved by setting an elastic material to abut against the connection port.

[0065] In addition, one end of the first pipette 112 passes through the sealing member 111 and extends into the receiving cavity, while the other end is connected to the first driving member 115. The first driving member 115 can directly draw electrolyte through the first pipette 112 and deliver it to the liquid injection assembly 12, keeping the electrolyte sealed throughout the delivery process and preventing it from contacting the outside world.

[0066] The input end of the first driving component 115 should be able to provide negative pressure to the first pipette 112 and positive pressure to the output end to stably deliver electrolyte; optionally, the first driving component 115 may be, but is not limited to, a pump, a motor, etc.

[0067] Furthermore, the first pipette 112 should be able to pass through the sealing member 111 and extend into the bottom of the receiving cavity to reduce electrolyte waste.

[0068] It should also be noted that the first control unit 114 is electrically connected to the first drive unit 115 and controls the opening and closing of the first drive unit 115, the time interval, etc., to improve the efficiency of the first drive unit 115.

[0069] To facilitate operation by staff, the first operating unit is equipped with buttons and a display screen. Staff can control the first drive unit 115 through the buttons, and the display screen can intuitively show the real-time working status of the first drive unit 115, thus improving the reliability of the battery liquid injection device.

[0070] In one embodiment, the infusion assembly 11 further includes a second pipette 113. The output end of the first drive member 115 is connected to the infusion assembly 12 via the second pipette 113. The second pipette 113 has a first segment and a second segment, the extension directions of which intersect. By providing the second pipette 113 at the output end of the first drive member 115 and connecting it to the infusion assembly 12, and by providing the intersecting first and second segments of the second pipette 113, the space utilization of the device can be improved, and the problem of mismatch between the height of the infusion end and the battery position can be addressed by the infusion device 121.

[0071] It should be noted that one end of the second pipette 113 is connected to the output end of the first drive unit 115, and the other end is connected to the liquid injection assembly 12, for conveying electrolyte.

[0072] The first pipe section is directly connected to the first driving component 115, and the second pipe section is connected to the liquid injection assembly 12.

[0073] Furthermore, the intersection of the extension directions of the first pipe segment and the second pipe segment means that the first pipe segment and the second pipe segment are connected and have an angle, so that the liquid injection assembly 12 connected to the second pipe segment can adapt to the height and direction of the battery and thus perform precise liquid injection.

[0074] To improve the space utilization of the battery injection device, the first tube segment can be configured to extend to the side of the infusion assembly 11 and extend beyond the upper part of the support portion 21 from the side. That is, the projection of the extension direction of the first tube segment and the movement direction of the support portion 21 in the height direction intersects and can extend beyond the upper part of the support portion 21 in the height direction. This allows the second tube segment and the injection assembly 12 to extend above the battery tray 4 for injection when the battery tray 4 is placed on the side of the battery injection device, thereby improving the stability of the injection process.

[0075] In one embodiment, the liquid injection assembly 12 includes a plurality of liquid injectors 121, each with a switch 1211 on its infusion path. The switch 1211 is electrically connected to a first control unit 114. The multiple liquid injectors 121 enable the device to simultaneously inject liquid into multiple batteries, improving injection efficiency and facilitating compatibility with common battery trays 4. Furthermore, the first control unit 114 directly controls the opening and closing of the switch 1211 to precisely control the injection volume.

[0076] It should be noted that the liquid injector 121 is the terminal that directly injects liquid into the battery, and the liquid injection end is set on the liquid injector 121. Multiple liquid injectors 121 can inject liquid into multiple batteries at the same time to improve the efficiency of the battery liquid injection device.

[0077] For ease of understanding, the positional distribution of the multiple injectors 121 should match the position of the batteries on the battery tray 4 to ensure a stable injection process.

[0078] It should also be noted that the first control unit 114 is electrically connected to the switch 1211 to control the opening and closing of the injector 121. At the same time, under the control of the first control unit 114, it can cooperate with the first drive unit 115. When the switch 1211 is turned on, the first drive unit 115 is turned on, thereby automating the injection process and improving the injection efficiency.

[0079] In addition, the injector 121 can be directly connected to the second tube section, and multiple injectors 121 are connected to the end of the second tube section away from the first drive member 115.

[0080] In one embodiment, a flow sensor 1212 is also provided on the infusion path of the injector 121, and the flow sensor 1212 is electrically connected to the first control unit 114. The flow sensor 1212 facilitates further confirmation of the accuracy of the battery infusion volume and provides effective data support for the first control unit 114.

[0081] It should be noted that the flow sensor 1212 can automatically calculate the amount of electrolyte passing through and cooperate with the first control unit 114 and the switch 1211. The first control unit 114 presets the amount of electrolyte required for a single battery and uses the flow sensor 1212 to detect the amount of electrolyte. This allows the first control unit 114 to control the opening and closing of the switch 1211 and the first drive unit 115 based on the amount of electrolyte detected by the first sensor, thereby improving the degree of automation and enhancing the stability of the battery filling device.

[0082] The flow sensor 1212 should be placed as close as possible to the opening to minimize the flow difference caused by the electrolyte between the flow sensor 1212 and the opening, which could result in too much or too little electrolyte in the battery.

[0083] In one embodiment, there are multiple injectors 121, which are spaced apart along a direction away from the electrolyte container 3. This arrangement of multiple injectors 121 along a direction away from the electrolyte container 3 allows the distribution of the injectors 121 to match the direction of movement and the position and arrangement of the batteries on the battery tray 4, facilitating electrolyte injection.

[0084] It should be noted that the battery trays 4 commonly found on the market are usually arranged in rows and columns. Multiple liquid injectors 121 are spaced apart along the direction away from the electrolyte container 3 to match the battery tray 4 as much as possible. The spacing between the liquid injectors 121 should match the spacing between the batteries on the battery tray 4.

[0085] To make the injector 121 compatible with most battery trays 4, the injector 121 can be configured with an adjustable spacing structure to facilitate battery injection in the laboratory.

[0086] In one embodiment, the injection mechanism 1 further includes a fixing frame 13 disposed on the electrolyte container 3. At least a portion of the fixing frame 13 extends away from the electrolyte container 3 and is connected to the injector 121. The fixing frame 13 fixes the injector 121 so that the injector 121 can inject liquid stably during the injection process, and prevents the movement of the carrier from affecting the injector 121.

[0087] It should be noted that the fixing bracket 13 is fixed on the outer wall of the electrolyte container 3 and extends away from the electrolyte container 3, and can be connected to the injector 121 to fix the injector 121.

[0088] There are various ways to connect the fixing frame 13 to the liquid injector 121, including but not limited to sleeve, clamp, and lock.

[0089] According to an embodiment of this utility model, another aspect provides a battery electrolyte filling system, including a battery tray 4 and the aforementioned battery electrolyte filling device, with an electrolyte container 3 fixed and cooperating with the battery tray 4. Since this battery electrolyte filling system includes the aforementioned battery electrolyte filling device, it has the same technical effects as the battery electrolyte filling device, and will not be described in detail here.

[0090] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A battery electrolyte filling device, characterized in that, include: Electrolyte container (3) has a receiving cavity for containing electrolyte; The liquid injection mechanism (1) includes an infusion assembly (11) and an injection assembly (12). The infusion assembly has a first pipette (112). The infusion assembly is adapted to the electrolyte container and communicates with the receiving cavity through the first pipette (112). The injection assembly (12) is located on one side of the infusion assembly (11) and connected to the infusion assembly (11). The injection assembly (12) has an injection end. The moving mechanism (2) includes a support part (21), a base (22) and a drive assembly. The support part (21) is slidably disposed on the base (22) via the drive assembly. The support part (21) has a support position for supporting the electrolyte container (3).

2. The battery electrolyte injection device according to claim 1, characterized in that, The drive assembly includes a second drive member and a second control unit (23). The second drive member is disposed on the support unit (21) or the base (22), and the second control unit (23) is disposed on the base (22) and electrically connected to the second drive member.

3. The battery electrolyte injection device according to claim 1, characterized in that, The support part (21) has a locking component (211) corresponding to the support position. The locking component (211) has a locked state that fixes the electrolyte container (3) to the support position, and an unlocked state that allows the electrolyte container (3) to be removed from the support position.

4. The battery electrolyte injection device according to claim 1, characterized in that, The base (22) has a guide structure (221) at the top and a matching structure (212) at the bottom of the supporting part (21). The guide structure (221) and the matching structure (212) are guided and matched.

5. The battery electrolyte filling device according to any one of claims 1 to 4, characterized in that, The infusion assembly (11) includes a sealing element (111), a first control unit (114), and a first drive unit (115). The top of the electrolyte container (3) is provided with a connection port. The sealing element (111) is detachably disposed at the connection port. The first pipette (112) is at least partially inserted through the sealing element (111) and extends into the receiving cavity. The input end of the first drive unit (115) is connected to the first pipette (112), and the output end is connected to the infusion assembly (12). The first control unit (114) is disposed on one side of the first drive unit (115) and is electrically connected to the first drive unit (115).

6. The battery electrolyte injection device according to claim 5, characterized in that, The infusion assembly (11) further includes a second pipette (113), the output end of the first drive (115) is connected to the infusion assembly (12) through the second pipette (113), the second pipette (113) has a first tube segment and a second tube segment, the extension directions of the two tube segments intersect.

7. The battery electrolyte injection device according to claim 5, characterized in that, The injection assembly (12) includes a plurality of injection devices (121), and a switch (1211) is provided on the infusion path of the injection device (121), and the switch (1211) is electrically connected to the first control unit (114).

8. The battery electrolyte filling device according to claim 7, characterized in that, The infusion path of the injector (121) is also provided with a flow sensor (1212), which is electrically connected to the first control unit (114). And / or, the number of the injectors (121) is multiple, and the multiple injectors (121) are spaced apart along a direction away from the electrolyte container (3).

9. The battery electrolyte filling device according to claim 7, characterized in that, The injection mechanism (1) further includes a fixing frame (13) disposed on the electrolyte container (3), at least a portion of the fixing frame (13) extending away from the electrolyte container (3) and connected to the injector (121).

10. A battery electrolyte filling system, characterized in that, include: Battery tray (4); The battery filling device according to any one of claims 1 to 9 fixes the electrolyte container (3) and cooperates with the battery tray (4).

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