CN217719906U - Liquid injection protection piece, battery assembly and battery production line - Google Patents
Liquid injection protection piece, battery assembly and battery production line Download PDFInfo
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- CN217719906U CN217719906U CN202221579163.6U CN202221579163U CN217719906U CN 217719906 U CN217719906 U CN 217719906U CN 202221579163 U CN202221579163 U CN 202221579163U CN 217719906 U CN217719906 U CN 217719906U
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- liquid injection
- infusion
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Abstract
The utility model relates to an annotate the liquid field, provide an annotate liquid protection piece, battery pack and battery production line, wherein, annotate the liquid protection piece, include: one end of the butt joint component is connected with the liquid injection device, the other end of the butt joint component is connected with the liquid injection port, a liquid injection hole is formed in the butt joint component, and the liquid injection hole is communicated with the liquid injection device and the liquid injection port; the liquid collecting piece is arranged on the periphery of the outer wall of the butt joint assembly and is used for collecting residual liquid for liquid injection. Be used for solving the unable high-efficient clear defect of low cost of notes liquid mouth raffinate in prior art, the utility model provides an annotate liquid protection piece, through butt joint subassembly intercommunication priming device and notes liquid mouth, set up a collection liquid spare in the circumference of butt joint subassembly, collect liquid spare setting at the priming device and annotate between the liquid mouth, the raffinate that the separation priming device drippage or notes liquid mouth overflowed flows to annotating the liquid mouth and annotating the shell at liquid mouth place on, protects annotating the shell at liquid mouth and annotating liquid mouth place, cancels wiping mechanism or reduces and cleans the process.
Description
Technical Field
The utility model relates to an annotate liquid technical field, especially relate to an annotate liquid protection piece, battery pack and battery production line.
Background
When the container is filled with liquid by the liquid filling device, particularly when the filled liquid is corrosive, the liquid filling port of the container needs to be wiped after the liquid filling is finished so as not to damage the container case and the liquid filling port by the corrosive liquid. For example, in the production process of the lithium battery, the electrolyte injection device injects electrolyte into the lithium battery through the electrolyte injection port of the lithium battery. The battery also has electrolyte to spill over from the battery notes liquid mouth in the partial volume in-process of formation, perhaps priming device has the electrolyte to drop on lithium cell casing or annotate the liquid mouth, need annotate the liquid mouth to the battery and wash, avoids causing the influence to the sealing performance of lithium cell.
The existing wiping mechanism is adopted to wipe the battery liquid injection port and the battery shell, and generally, 1 to 2 wiping procedures are carried out during primary liquid injection, and 2 to 3 wiping procedures are carried out during secondary liquid injection. Although can the clearance raffinate of certain degree through wiping mechanism, increase wiping mechanism and improved the manufacturing cost of battery, and wiping mechanism wipes the effect to the electrolyte of crystallization relatively poor.
SUMMERY OF THE UTILITY MODEL
The utility model provides an annotate liquid protection piece, battery pack and battery production line for solve the unable low-cost high-efficient clear defect of notes liquid mouth raffinate in the prior art, realize annotating and set up between liquid mouth and the priming device and annotate liquid protection piece, collect the raffinate that drips or spills over, prevent with annotate the liquid mouth or annotate the structural contact at liquid mouth place.
The utility model provides an annotate liquid protection piece, include:
the liquid injection device comprises a liquid injection device, a butt joint assembly and a liquid injection port, wherein one end of the butt joint assembly is connected with the liquid injection device, the other end of the butt joint assembly is connected with the liquid injection port, a liquid injection hole is formed in the butt joint assembly, and the liquid injection hole is communicated with the liquid injection device and the liquid injection port;
the liquid collecting piece is arranged on the periphery of the outer wall of the butt joint assembly and used for collecting residual liquid for liquid injection.
According to the utility model provides an annotate liquid protection piece, the butt joint subassembly is provided with the external screw thread, the external screw thread with annotate the interior screw-thread fit of liquid mouth.
According to the liquid injection protection piece provided by the utility model, the liquid collection piece is annular, the liquid collection piece comprises an inner ring and an outer ring, and the butt joint component penetrates through the inner ring and is connected with the inner ring;
and a residual liquid for liquid injection is collected between the inner ring and the outer ring.
According to the utility model provides an annotate liquid protection piece, collect liquid piece the inner circle with seted up the recess between the outer lane, the opening side orientation of recess priming device.
According to the utility model provides an annotate liquid protection piece, the butt joint subassembly includes notes liquid portion and connecting portion, the notes liquid hole link up annotate liquid portion and connecting portion;
the liquid injection part is in plug-in fit with the liquid injection device;
the connecting part is connected with the liquid injection port, and the liquid collecting piece is arranged at the joint of the liquid injection part and the connecting part.
According to the utility model provides a liquid injection protection piece, the liquid injection hole comprises a first hole section, the first hole section is in a conical shape, and the first hole section is formed in the liquid injection part;
the cross-sectional dimension of the first hole section close to the liquid injection device is larger than that of the first hole section close to the connecting part.
According to the utility model provides an annotate liquid protection piece, connecting portion include first section and second section along the axis, first section diameter is greater than second section diameter, first section sets up the second section with collect between the liquid piece, the second section with annotate the liquid mouth and connect, the second section with set up the sealing member between the surface at notes liquid mouth place.
According to the utility model provides an annotate liquid protection piece, the second section is provided with the screw thread.
According to the utility model provides an annotate liquid protection piece, second section length less than or equal to annotate liquid mouth place shell thickness.
According to the utility model provides an annotate liquid protection piece, annotate liquid portion with priming device's axial distance is less than collect liquid piece with priming device's axial distance.
The utility model also provides a battery pack, including battery body and foretell notes liquid protection spare, battery body includes annotate the liquid mouth, the butt joint subassembly with it connects to annotate the liquid mouth.
The utility model also provides a battery production line, which comprises the liquid injection device and the liquid injection protection piece;
or, the battery production line comprises the liquid injection device and the battery assembly.
The utility model provides a annotate liquid protection piece, through butt joint subassembly intercommunication priming device and notes liquid mouth, set up a collection liquid spare in the circumference of butt joint subassembly, collect liquid spare and set up between priming device and notes liquid mouth, the raffinate that separation priming device dripped or the raffinate that annotates the liquid mouth and spill over flows to annotating the liquid mouth and annotating the shell at liquid mouth place on, protects annotating the shell at liquid mouth and notes liquid mouth place, cancels wiping mechanism or reduces and cleans the process.
Further, in the battery pack and the battery production line according to the present invention, since the injection protector is provided as described above, various advantages as described above are also provided.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the following briefly introduces the drawings required for the embodiments or the prior art descriptions, and obviously, the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a front view of an injection protection member provided by the present invention;
fig. 2 is a top view of an infusion shield provided by the present invention;
fig. 3 isbase:Sub>A cross-sectional view taken alongbase:Sub>A-base:Sub>A of fig. 2 according to the present invention.
Reference numerals:
100: a liquid injection part; 101: a first opening; 110: a liquid injection hole; 111: a first bore section; 112: a second bore section; 200: a liquid collecting member; 201: a groove; 202: an outer edge; 203: a base plate; 210: an inner ring; 220: an outer ring; 300: a connecting portion; 301: a first stage; 302: a second stage; 303: a seal member; 304: a second opening.
Detailed Description
To make the objects, technical solutions and advantages of the present invention clearer, the drawings of the present invention are combined to clearly and completely describe the technical solutions of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.
In the description of the embodiments of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element to which the description refers must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the embodiments of the present invention can be understood in specific cases by those skilled in the art.
In the description of the present specification, references to the description of "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the embodiments of the present invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Embodiments of the present invention will be described with reference to fig. 1 to 3. It is to be understood that the following description is only exemplary of the present invention and is not intended to limit the present invention.
As shown in fig. 1 and 2, the present invention provides an injection protection device, comprising: the liquid collecting device comprises a butt joint component and a liquid collecting piece 200, wherein the butt joint component is communicated with a liquid injection device and a liquid injection port, the liquid collecting piece is used for collecting residual liquid, one end of the butt joint component is connected with the liquid injection device, the other end of the butt joint component is connected with the liquid injection port, a liquid injection hole 110 is formed in the butt joint component, and the liquid injection hole 110 is communicated with the liquid injection device and the liquid injection port; the liquid collecting piece 200 is arranged on the periphery of the outer wall of the butt joint assembly, and the liquid collecting piece 200 is used for collecting residual liquid for liquid injection.
In other words, the liquid injection hole 110 penetrates the upper and lower parts of the docking assembly, and the liquid injection hole 110 serves as a flow path for the liquid to communicate with the liquid injection device and the liquid injection port. The liquid collecting piece 200 is arranged between the liquid injection device and the liquid injection port, and the liquid collecting piece 200 is arranged around the butt joint assembly and is convenient for collecting residual liquid flowing out from multiple directions, for example, the liquid collecting piece can receive residual liquid dropping from any direction of the liquid injection device and residual liquid overflowing from any direction of the liquid injection port. The liquid collecting element 200 and the docking assembly may be separate structures or integrally formed structures.
Wherein, collection liquid piece 200 can be integrated into one piece whole, can form by a plurality of splices, and collection liquid piece 200 will overflow and collect the raffinate near annotating the liquid mouth, has guaranteed to annotate the device surface's that liquid mouth place cleanliness, saves and cleans the process.
As shown in fig. 2, in one embodiment of the present invention, the liquid collecting member 200 is ring-shaped, the liquid collecting member 200 includes an inner ring 210 and an outer ring 220, and the docking assembly penetrates through the inner ring 210 and is connected to the inner ring 210; wherein, the inner ring 210 and the outer ring 220 are used for collecting residual liquid for liquid injection.
In other words, the liquid collecting element 200 is sleeved on the outer wall of the butt joint component, and residual liquid is held between the outer wall of the butt joint component and the edge of the liquid collecting element 200. Of course, the liquid collecting element 200 may be a circular ring structure, or may be a square structure with an inner ring 210, a circle and an outer ring 220, or may be a square structure with an inner ring 210, a square structure with an outer ring 220, or may be a square structure with both inner and outer rings 220, or may be another polygonal structure. In addition, the liquid collecting element 200 may be a symmetrical structure or an asymmetrical structure, wherein the symmetrical structure may be central symmetry or axial symmetry.
Further, in another embodiment of the present invention, a groove 201 is disposed between the inner ring 210 and the outer ring 220 of the liquid collecting member 200, and the opening side of the groove 201 faces the liquid injecting device.
In other words, the drip catcher 200 includes an outer rim 202 and a bottom plate 203, one side of the bottom plate 203 being connected to the outer rim 202 and the other side of the bottom plate 203 being connected to the docking assembly. Between the docking assembly and the outer rim 202 is a groove 201 for collecting the residual liquid. Wherein the outer edge 202 is disposed at an angle with respect to the bottom plate 203, for example, the outer edge 202 is disposed perpendicular to the bottom plate 203, or the outer edge 202 is disposed at an obtuse angle with respect to the bottom plate 203. In addition, the bottom plate 203 can be a plane or a concave radian, so that a better residual liquid storage effect can be achieved.
As shown in fig. 3, in an alternative embodiment of the present invention, the docking assembly includes a liquid injection portion 100 and a connecting portion 300, and the liquid injection hole 110 penetrates through the liquid injection portion 100 and the connecting portion 300; the liquid injection part 100 is matched with a liquid injection device in an inserted manner; the connecting part 300 is connected to the liquid inlet, and the liquid trap 200 is provided at the junction between the liquid inlet 100 and the connecting part 300.
Specifically, the liquid injection part 100 and the connection part 300 are arranged up and down, and the liquid injection device inserts the liquid injection nozzle into the liquid injection part 100 to inject the liquid. Liquid collector 200 is fitted over liquid injection unit 100 and connected to the junction between liquid injection unit 100 and connection unit 300. Wherein, annotate liquid portion 100 and connecting portion 300 and can be the integrated into one piece structure, form recess 201 between the outer wall of annotating liquid portion 100 and the outer edge 202 of album liquid piece 200 for collect and store the raffinate.
The pour hole 110 has a first opening 101 formed at the upper end of the pour portion 100, a second opening 304 formed at the lower end of the connecting portion 300, the pour hole 110 communicates the first opening 101 with the second opening 304, the first opening 101 is engaged with the pouring device, and the second opening 304 is engaged with the pour port.
With continued reference to fig. 3, in the embodiment of the present invention, the liquid injection hole 110 includes a first hole section 111, the first hole section 111 is of a conical shape, and the first hole section 111 is formed in the liquid injection portion 100; the cross-sectional dimension of the first hole section 111 close to the liquid injection device is larger than the cross-sectional dimension of the first hole section 111 close to the connecting part 300.
That is, the tapered configuration of the first orifice section 111 facilitates insertion of the pouring nozzle and accelerates the downward flow of the liquid.
The liquid injection hole 110 further includes a second hole section 112, the second hole section 112 is formed in the connecting portion 300, and the second hole section 112 may be a straight cylinder. The second hole segment 112 and the first hole segment 111 are communicated to form the liquid injection hole 110.
For the connection part 300 of the present invention, in other embodiments of the present invention, the connection part 300 includes a first section 301 and a second section 302 along the axis, the diameter of the first section 301 is larger than that of the second section 302, the first section 301 is disposed between the second section 302 and the liquid collecting member 200, that is, the liquid injection part 100, the first section 301, and the second section 302 are sequentially arranged along the axis direction; the second section 302 is connected to the pouring outlet, and a seal 303 is provided between the second section 302 and the surface on which the pouring outlet is located.
Specifically, the first section 301 forms a shoulder protruding from the second section 302 for retaining the sealing element 303, the sealing element 303 may be a sealing ring, and the sealing element 303 is sleeved on the second section 302.
Furthermore, in other optional embodiments of the present invention, the docking assembly is provided with an external thread, and the external thread is engaged with the internal thread of the liquid injection port. Specifically, the second section 302 of the connecting portion 300 is provided with external threads that mate with internal threads of the injection port to enable connection of the injection guard to the battery. Set up the external screw thread on connecting portion 300, with the liquid of pouring into with annotate the liquid mouth and keep apart, avoid annotating the liquid mouth contact liquid of pouring into, protect annotating the liquid mouth. In addition, the liquid can be prevented from adhering to the threaded connection part, so that the liquid remained on the threads can be prevented from dropping on the battery to cause pollution when the battery is detached from the liquid injection protection piece.
In another alternative embodiment of the present invention, the length of the second section 302 is less than or equal to the thickness of the casing where the liquid inlet is located. That is, the length of the external thread on the second section 302 is less than or equal to the thickness of the battery aluminum shell at the liquid filling opening, so as to ensure that the liquid filling opening is not polluted by residual liquid. For example, when the external thread length is greater than the thickness of the aluminum case, the external thread of the second section 302 extending into the battery may be contaminated when the electrolyte spreads to the filling opening, and the electrolyte remaining in the second section 302 may contact the internal thread of the filling opening and be contaminated when the connection portion 300 is screwed out of the filling opening. Therefore, the length of the external thread is less than or equal to the thickness of the aluminum shell at the liquid filling opening, in other words, the length of the external thread is consistent with the length of the internal thread.
In some other embodiments of the present invention, the liquid injection protection member is made of a non-metal corrosion-resistant material to prevent the battery from being scratched when the docking assembly is connected to the liquid injection port, for example, a rubber material with a certain hardness can be used. Alternatively, the connection portion 300 of the docking assembly is made of a non-metal corrosion-resistant material. Furthermore, in other embodiments of the present invention, the connection portion 300 can be in interference fit with the liquid injection port, and the connection portion 300 with elasticity can be plugged into the liquid injection port, and tightly attached to the smooth inner wall of the liquid injection port, so as to prevent the electrolyte from polluting the liquid injection port. And (4) after the liquid injection is finished, pulling out the liquid injection protection part.
Further, in an embodiment of the present invention, an axial distance between the liquid injection portion 100 and the liquid injection device is smaller than an axial distance between the liquid collection member 200 and the liquid injection device. In other words, the height of the liquid injection part 100 is higher than that of the liquid collecting element 200, which is beneficial for the manipulator to grab the liquid injection part 100 and install and pour the liquid on the liquid injection port when the liquid injection protection element is assembled automatically, so as to meet the requirement of automatic installation.
The utility model also provides a battery pack, including the notes liquid protection piece of battery body and above-mentioned embodiment, battery body is connected with annotating the liquid mouth including annotating the liquid mouth, butt joint subassembly.
In the production process of battery, need pour into electrolyte and glue the nail into the battery, consequently annotate liquid hole 110 and be used for the battery to annotate the circulation passageway of liquid in-process electrolyte, also be used for holding sealed glue the nail.
The utility model also provides a battery production line, which comprises a liquid injection device and the liquid injection protection piece of the embodiment; alternatively, the battery production line comprises the liquid injection device and the battery assembly of the embodiment. The injection means includes an injection nozzle which is fitted with the tapered first hole section 111 of the injection part 100 for injecting the electrolyte.
The utility model provides an annotate liquid protection piece through butt joint subassembly intercommunication priming device and notes liquid mouth, sets up an album liquid piece 200 in the circumference of butt joint subassembly, and an album liquid piece 200 sets up between priming device and notes liquid mouth, and the raffinate that separation priming device dripped or the raffinate that annotates the liquid mouth and spill over flows to annotating the liquid mouth and annotate the shell at liquid mouth place on, protects annotating the liquid mouth and annotating the shell at liquid mouth place, cancels wiping mechanism or reduction and cleans the process.
Further, in the battery pack and the battery production line according to the present invention, since the injection protector is provided as described above, various advantages as described above are also provided.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (11)
1. An infusion guard, comprising:
the liquid injection device comprises a liquid injection device, a butt joint assembly, a liquid injection hole and a liquid injection port, wherein one end of the butt joint assembly is connected with the liquid injection device, the other end of the butt joint assembly is connected with the liquid injection port, and the butt joint assembly is internally provided with the liquid injection hole which is communicated with the liquid injection device and the liquid injection port;
the liquid collecting piece is arranged on the periphery of the outer wall of the butt joint assembly and used for collecting residual liquid for liquid injection.
2. The infusion guard of claim 1, wherein the docking assembly is provided with external threads that mate with internal threads of the infusion port.
3. The infusion guard according to claim 1, wherein the liquid trap is ring-shaped, the liquid trap includes an inner ring and an outer ring, and the docking assembly extends through the inner ring and is connected to the inner ring;
and a residual liquid for liquid injection is collected between the inner ring and the outer ring.
4. The injection protection member of claim 3, wherein a groove is formed between the inner ring and the outer ring of the liquid collecting element, and an opening side of the groove faces the injection device.
5. The infusion guard of any one of claims 1-4, wherein the docking assembly includes an infusion portion and a connection portion, the infusion hole passing through the infusion portion and the connection portion;
the liquid injection part is in plug-in fit with the liquid injection device;
the connecting part is connected with the liquid injection port, and the liquid collecting piece is arranged at the joint of the liquid injection part and the connecting part.
6. The infusion guard of claim 5, wherein the infusion orifice includes a first orifice segment, the first orifice segment being tapered, the first orifice segment being molded within the infusion section;
the cross-sectional dimension of the first hole section close to the liquid injection device is larger than that of the first hole section close to the connecting part.
7. The liquid injection guard of claim 5, wherein the connection portion includes a first section and a second section along an axis, the first section having a diameter greater than a diameter of the second section, the first section disposed between the second section and the liquid collection member, the second section connected to the liquid injection port, the second section disposed between a surface of the liquid injection port and a seal.
8. The priming guard of claim 7, wherein the second segment length is less than or equal to the thickness of the housing in which the priming port is located.
9. The infusion guard of claim 5, wherein an axial distance of the infusion portion from the infusion device is less than an axial distance of the liquid trap from the infusion device.
10. A battery pack characterized by comprising a battery body including the liquid pouring port, and the liquid pouring guard according to any one of claims 1 to 9, the docking assembly being connected to the liquid pouring port.
11. A battery production line comprising the injection device and the injection guard of any one of claims 1 to 9;
alternatively, the battery production line comprises the liquid injection device and the battery assembly of claim 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221579163.6U CN217719906U (en) | 2022-06-22 | 2022-06-22 | Liquid injection protection piece, battery assembly and battery production line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221579163.6U CN217719906U (en) | 2022-06-22 | 2022-06-22 | Liquid injection protection piece, battery assembly and battery production line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217719906U true CN217719906U (en) | 2022-11-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221579163.6U Active CN217719906U (en) | 2022-06-22 | 2022-06-22 | Liquid injection protection piece, battery assembly and battery production line |
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| CN (1) | CN217719906U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116613485A (en) * | 2023-07-17 | 2023-08-18 | 宁德时代新能源科技股份有限公司 | Liquid injection method and liquid injection system for battery |
-
2022
- 2022-06-22 CN CN202221579163.6U patent/CN217719906U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116613485A (en) * | 2023-07-17 | 2023-08-18 | 宁德时代新能源科技股份有限公司 | Liquid injection method and liquid injection system for battery |
| CN116613485B (en) * | 2023-07-17 | 2023-12-15 | 宁德时代新能源科技股份有限公司 | Liquid injection method and liquid injection system for battery |
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