Pole and battery

Abstract

The embodiment of the utility model provides a pole and a battery, the pole comprises a pole main body, a stop part, an insulating sleeve and a substrate, the substrate is provided with a first through hole, and the insulating sleeve is provided with a second through hole; the insulating sleeve sleeves the first through hole; the pole main body at least comprises a pole body, and an annular groove is formed in the pole body; the top of the column body penetrates through the first through hole and the second through hole, and the bottom of the column body cannot penetrate through the first through hole and the second through hole; the stop component comprises a left stop ring and a right stop ring which are respectively arranged on the annular groove; and the left check ring and the right check ring are positioned on the insulating sleeve and are matched with the substrate to form absolute positioning of the pole main body relative to the insulating sleeve and the substrate. According to the technical scheme, the radial movement of the pole post is limited when the pole post is subjected to radial impact, so that the pole post is prevented from excessively sinking to further cause air leakage and liquid leakage of the battery, and the longitudinal impact resistance of the pole post is improved.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a pole and a battery. Background Art

[0002] In response to the call for sustainable energy electric vehicles, power batteries have developed rapidly in recent years, and the design of their internal structural components has also been continuously upgraded. The terminal assembly, as the core component of the battery cover, is the window for connecting to external electrical devices, and its performance and reliability are particularly critical.

[0003] In the prior art, in order to connect the electrode to other components in the battery, a connection is usually formed between the electrode and the battery cover by welding or riveting, so that the electrode is fixed to the battery cover.

[0004] However, the existing pole has a problem of poor ability to resist longitudinal impact. Utility Model Content

[0005] The embodiments of the present application provide a pole and a battery, which are used to solve the problem that the existing pole has poor ability to resist longitudinal impact.

[0006] In a first aspect, an embodiment of the present application provides a pole, comprising: a pole body, a stop member, an insulating sleeve, and a substrate, wherein:

[0007] The substrate is provided with a first through hole, and the insulating sleeve is provided with a second through hole; the insulating sleeve is sleeved on the first through hole;

[0008] The pole body at least includes a pole body, and an annular groove is provided on the pole body; the top of the pole body passes through the first through hole and the second through hole, and the bottom of the pole body cannot pass through the first through hole and the second through hole;

[0009] The stopping component includes a left stopping ring and a right stopping ring, which are respectively arranged on the annular groove; the left stopping ring and the right stopping ring are located on the insulating sleeve and cooperate with the base plate to form an absolute positioning of the pole body relative to the insulating sleeve and the base plate.

[0010] In a possible implementation manner, the pole body further includes a base, and the cross-sectional area of ​​the base is larger than the cross-sectional area of ​​the pole body.

[0011] In a possible embodiment, the stop component further includes an injection molded part, the injection molded part is provided with a third through hole, the column body passes through the third through hole, and the injection molded part is provided outside the left stop ring and the right stop ring;

[0012] The injection molded part is used to perform edge-wrapping and insulation treatment on the left and right stop rings.

[0013] In a possible implementation manner, the left stop ring and the right stop ring are symmetrical structures.

[0014] In a possible implementation manner, the left stop ring and the right stop ring are fixedly connected by spot welding.

[0015] In a possible embodiment, the pole further includes a sealing component, which is disposed between the substrate and the base;

[0016] The sealing component is used to cushion the pole when it is subjected to radial impact.

[0017] In a possible embodiment, the sealing component includes a sealing ring and a support frame, wherein:

[0018] The sealing ring is provided with a fourth through hole, and the top of the column body passes through the fourth through hole, so that the sealing ring is arranged between the substrate and the base. The sealing ring is used to elastically deform when the pole is subjected to radial impact, so that the pole is in a sealed state;

[0019] The support frame is provided with a fifth through hole, and the top of the column body and the sealing ring pass through the fifth through hole, so that the support frame is arranged between the substrate and the base, and the support frame is used to support and fix the sealing ring.

[0020] In a possible implementation manner, the support frame and the base plate are fixedly connected by welding.

[0021] In a possible embodiment, the side surface of the column body is composed of a plurality of mutually connected rectangular surfaces.

[0022] In a second aspect, an embodiment of the present application provides a battery, comprising the electrode provided in the first aspect of the embodiment of the present application.

[0023] The pole and battery provided in the embodiments of the present application, by providing an annular groove on the pole body, providing a stop member on the annular groove, and providing an insulating sleeve and a base plate under the stop member, limit the radial movement of the pole when subjected to a radial impact, prevent the pole from excessively sinking, which would further cause gas or liquid leakage in the battery, and improve the pole's ability to resist longitudinal impact. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0025] Figure 1 A cross-sectional view of a pole provided in an embodiment of the present application;

[0026] Figure 2 An exploded view of a pole provided in an embodiment of the present application;

[0027] Figure 3 A schematic diagram of a pole body provided in an embodiment of the present application;

[0028] Figure 4 Schematic diagram of the left stop ring and the right stop ring provided in an embodiment of the present application.

[0029] Reference numerals:

[0030] 10-pole body; 11-column; 12-base; 20-stop component; 21-left stop ring; 22-right stop ring; 23-injection molded part; 30-insulating sleeve; 40-base plate; 50-sealing component; 51-sealing ring; 52-support frame.

[0031] The above drawings illustrate specific embodiments of the present application, which will be described in more detail below. These drawings and the textual description are not intended to limit the scope of the present application in any way, but rather to illustrate the concepts of the present application to those skilled in the art by reference to specific embodiments. DETAILED DESCRIPTION

[0032] To make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the specific technical solutions of the present application will be further described in detail below in conjunction with the drawings in the embodiments of the present application. The following embodiments are used to illustrate the present application but are not intended to limit the scope of the present application.

[0033] In the embodiments of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of this application, unless otherwise specified, "multiple" means two or more.

[0034] In addition, in the embodiments of the present application, directional terms such as "up", "down", "left" and "right" are defined relative to the orientation of the components in the drawings. It should be understood that these directional terms are relative concepts. They are used for relative description and clarification, and they may change accordingly according to changes in the orientation of the components in the drawings.

[0035] In the embodiments of the present application, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integrated connection; it can be a direct connection or an indirect connection through an intermediate medium.

[0036] In the embodiments of the present application, the terms "comprises," "comprising," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of other identical elements in the process, method, article, or apparatus comprising the element.

[0037] In the embodiments of this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of this application should not be interpreted as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0038] Prior art methods for securing terminals through welding or riveting suffer from poor resistance to longitudinal impact. When terminals are subjected to high or low temperature shock or dynamic forces, the welds or rivets can easily become loose, causing the terminals to sink. This reduces the compression of the sealing ring, deteriorating the sealing performance and potentially leading to gas and fluid leakage in the battery.

[0039] The pole and battery provided in the present application can connect the stop component to the pole by providing an annular groove on the pole body, and then provide an insulating sleeve and a base plate below the stop component, and then connect the pole to the base of the pole through a sealing component, so as to form an absolute positioning of the pole relative to the insulating sleeve and the base plate. When the pole is subjected to a radial impact force, the stop component reduces part of the impact force, so that the sinking phenomenon of the pole is weakened, and the sealing component is kept in close contact with the pole base, thereby solving the problem of reduced sealing due to poor resistance to longitudinal impact after the pole is subjected to a radial impact force.

[0040] The following specific embodiments describe in detail the technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0041] Figure 1 A cross-sectional view of a pole provided in an embodiment of the present application, such as Figure 1 As shown, the pole provided in the embodiment of the present application includes: a pole body 10 , a stopping component 20 , an insulating sleeve 30 and a base plate 40 .

[0042] Specifically, the pole body 10 includes a shaft 11, which is provided with an annular groove. The stopper 20 includes a left stopper ring 21 and a right stopper ring 22, which are respectively provided on the annular groove from the left and right sides. The insulating sleeve 30 is provided on the shaft 11 through the second through-hole and is located below the stopper 20. The base plate 40 is provided on the insulating sleeve 30 through the first through-hole. The left stopper ring 21 and the right stopper ring 22 can be made of a metal with good rigidity and hardness, such as steel.

[0043] Furthermore, the pole body 10 also includes a base 12, the cross-sectional area of ​​the base 12 is larger than the cross-sectional area of ​​the column body 11, so that the insulating sleeve 30 and the base plate 40 provided on the column body 11 will not fall off from the bottom of the column body 11. The cross-sectional view of the pole body 10 composed of the column body 11 and the base 12 is similar to a "convex" shape.

[0044] The embodiment of the present application provides an annular groove on the column body, and provides a left stop ring and a right stop ring in the annular groove, and provides an insulating sleeve and a base plate below the left stop ring and the right stop ring. This can limit the radial movement of the pole when subjected to radial impact, prevent the pole from excessively sinking, and further cause gas or liquid leakage in the battery, thereby improving the ability of the pole to resist longitudinal impact.

[0045] In some embodiments, the stop component 20 also includes an injection molded part 23, which is arranged on the column body 11 through the third through hole, and wraps the upper and outer sides of the left stop ring 21 and the right stop ring 22 to prevent the left stop ring 21 and the right stop ring 22 from being directly exposed to the external environment and being corroded by humidity, oxygen, chemicals, etc., resulting in corrosion, rust or performance degradation, and plays the role of edging isolation. At the same time, the injection molded part 23 can also provide additional fixation and support for the left stop ring 21 and the right stop ring 22 to prevent them from loosening or displacement, thereby improving the stability and reliability of the structure.

[0046] Optional, Figure 4 Schematic diagram of the left stop ring and the right stop ring provided in the embodiment of the present application, as shown in FIG. Figure 4 As shown, the left stop ring 21 and the right stop ring 22 can be set as a symmetrical structure. The left stop ring 21 and the right stop ring 22 are respectively inserted into the annular groove on the column body 11 from the left and right sides. This can reduce problems such as vibration, deflection or stress concentration caused by asymmetry. It can also be easier to align and fix during installation, reducing the difficulty and complexity of installation. After the left stop ring 21 and the right stop ring 22 are inserted into the annular groove, they can be fixed by spot welding. This allows them to withstand large tensile and shear forces and avoid failures caused by loose or broken connections. Compared with other welding methods, spot welding has higher precision and can ensure a fixed relative position between the left stop ring 21 and the right stop ring 22.

[0047] The embodiment of the present application sets the left stop ring and the right stop ring as a symmetrical structure, connects them by spot welding, and sets injection molded parts on the outside of the left stop ring and the right stop ring, which can improve the stability and reliability of the stop component and prevent the left and right stop rings from loosening.

[0048] In some embodiments, the pole may further include a sealing component 50 , which is disposed between the substrate 40 and the base 12 to function as a buffer.

[0049] The sealing component 50 may include a sealing ring 51 and a support frame 52. The sealing ring 51 is set on the column body 11 through the fourth through hole, and the support frame 52 is set on the sealing ring 51 through the fifth through hole. Since a base 12 is set under the column body 11, the sealing ring 51 and the support frame 52 cannot detach from the bottom of the column body.

[0050] The sealing ring 51 can be made of a rubber or composite material. When the column body 11 is subjected to a radial impact force, the radial displacement caused by the impact force will cause the column body 11 to sink relative to the substrate 40 because the base 40 is fixed to other external structures. At this time, the gap between the base 12 and the base 40 becomes larger. The sealing ring 51 can maintain close contact with the upper substrate 40 and the lower base 12 through elastic deformation, keeping the pole in a sealed state and avoiding the risk of air and liquid leakage. Combined with the left and right stop rings 21 and 22 provided on the column body 11, the radial displacement of the column body 11 can be further reduced, ensuring the normal operation of the sealing ring 51.

[0051] The support frame 52 is arranged on the outside of the sealing ring 51, which can effectively support and fix the sealing ring 51 to prevent it from moving or deforming during operation, thereby ensuring the stability of the sealing effect. At the same time, it can also reduce the friction between the sealing ring 51 and other components, thereby reducing the risk of damage to the sealing ring due to wear.

[0052] The support frame 52 can be fixed to the base plate 40 by welding, or can be fixed by clamping the base 12 and the base plate 40. The embodiment of the present application does not limit the outer shape of the support frame 52. The shape of the fifth through hole of the support frame 52 depends on the outer shape of the sealing ring 51. If the outer shape of the sealing ring 51 is circular, the shape of the fifth through hole of the support frame 52 is circular. If the outer shape of the sealing ring 51 is square, the shape of the fifth through hole of the support frame 52 is square. Since the sealing ring 51 can produce elastic deformation, the outer shape of the sealing ring 51 depends on the shape of the fourth through hole of the sealing ring 51, and the shape of the fourth through hole of the sealing ring 51 depends on the cross-sectional shape of the column body 11.

[0053] The embodiment of the present application provides a sealing ring and a support frame, which can maintain the sealing state of the pole when subjected to radial impact force, thereby preventing air and liquid leakage and wasting resources.

[0054] In some embodiments, the side surface of the column body 11 may be composed of a plurality of interconnected rectangular surfaces. For example, Figure 2 This is an exploded view of the pole provided in the embodiment of the present application (excluding the injection molded part 23). Figure 3 A schematic diagram of a pole body provided in an embodiment of the present application is shown in FIG. Figure 2 and Figure 3 As shown, the polygonal cross-section of the column 11 can cooperate with the insulating sleeve 30 and the base plate 40 to prevent the column 11 from rotating and reduce friction with other components. At the same time, compared with a circular cross-section, with the same material usage, the polygonal cross-section has higher bending strength and torsional rigidity, making it less susceptible to bending or twisting deformation. To match this, the second through-hole of the insulating sleeve 30 is polygonal in shape.

[0055] In the embodiment of the present application, the cross section of the pole body is set to a polygon, thereby achieving a limiting effect on the pole body, preventing the pole body from rotating and causing friction damage to other components.

[0056] The installation process of each component in the pole can be as follows: first, the sealing ring 51 is sleeved on the column body 11, and the bottom surface of the sealing ring 51 contacts the base 12. Then, the support frame 52 is sleeved on the sealing ring 51, and the bottom surface of the support frame 52 contacts the base 12. Then, the substrate 40 is sleeved on the column body 11. At this time, the through hole of the substrate 40 is not in contact with the column body 11, and the bottom surface of the substrate 40 contacts the sealing ring 51 and the support frame 52. Then, the insulating sleeve 30 is sleeved on the column body 11, and the through hole of the insulating sleeve 30 contacts the column body 11. The outer side of the insulating sleeve 30 contacts the substrate 40. The bottom surface of 30 contacts the top surface of the sealing ring 51, and then the left stop ring 21 and the right stop ring 22 are respectively inserted into the annular groove from the left and right sides of the column body 11, and the left stop ring 21 and the right stop ring 22 are fixedly connected by spot welding. At this time, part of the bottom surface of the left stop ring 21 and the right stop ring 22 contacts the annular groove, and the other part of the bottom surface contacts the insulating sleeve 30. Finally, the injection molded part 23 is sleeved on the column body 11, and the inner side of the injection molded part 23 contacts part of the top surface and side surface of the left stop ring 21 and the right stop ring 22, and also contacts part of the top surface and side surface of the insulating sleeve 30.

[0057] To sum up, the pole provided in the embodiment of the present application is absolutely positioned relative to the insulating sleeve and the substrate when subjected to external radial impact force due to the provision of a left stop ring, a right stop ring, and an outsourced injection molded part, so that the pole body is buffered against the impact force. The buffered impact force may still cause the pole body to sink slightly. At this time, the radial displacement of the sinking will enlarge the gap between the pole base and the substrate. The enlarged gap is filled by the elastic deformation of the sealing ring to maintain the sealing of the pole.

[0058] Based on the same technical concept, the present invention also provides a battery comprising the above-mentioned electrode provided in the present invention. The battery provided in the present invention can be applied to all application scenarios using the above-mentioned electrode.

[0059] The serial numbers of the embodiments of this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments. The above are only preferred embodiments of this application and do not limit the scope of the patent of this application. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of this application, or directly or indirectly applied in other related technical fields, are also included in the scope of patent protection of this application.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A pole, characterized in that: include: Pole body, stop member, insulating sleeve and base plate, wherein, The substrate is provided with a first through hole, and the insulating sleeve is provided with a second through hole; the insulating sleeve is sleeved on the first through hole; The pole body at least includes a column body, and the column body is provided with an annular groove; the top of the column body passes through the first through hole and the second through hole, and the bottom of the column body cannot pass through the first through hole and the second through hole; The stopping component includes a left stopping ring and a right stopping ring, which are respectively arranged on the annular groove; the left stopping ring and the right stopping ring are located on the insulating sleeve and cooperate with the substrate to form an absolute positioning of the pole body relative to the insulating sleeve and the substrate.

2. The pole according to claim 1, characterized in that The pole body further includes a base, and the cross-sectional area of ​​the base is larger than the cross-sectional area of ​​the pole body.

3. The pole according to claim 1, characterized in that The stop component further includes an injection molded part, the injection molded part is provided with a third through hole, the column body passes through the third through hole, so that the injection molded part is provided outside the left stop ring and the right stop ring; The injection molded part is used to perform edge-wrapping and isolation treatment on the left stop ring and the right stop ring.

4. The pole according to claim 1, characterized in that The left stop ring and the right stop ring are symmetrical structures.

5. The pole according to claim 4, characterized in that The left stop ring and the right stop ring are fixedly connected by spot welding.

6. The pole according to claim 2, characterized in that: The pole further includes a sealing component, which is arranged between the substrate and the base; The sealing component is used to provide buffering when the pole is subjected to radial impact.

7. The pole according to claim 6, characterized in that The sealing component includes a sealing ring and a support frame, wherein: The sealing ring is provided with a fourth through hole, and the top of the column body passes through the fourth through hole, so that the sealing ring is arranged between the substrate and the base, and the sealing ring is used to elastically deform when the pole is subjected to radial impact, so that the pole is in a sealed state; The support frame is provided with a fifth through hole, and the top of the column body and the sealing ring pass through the fifth through hole, so that the support frame is arranged between the substrate and the base, and the support frame is used to support and fix the sealing ring.

8. The pole according to claim 7, characterized in that The support frame and the base plate are fixedly connected by welding.

9. The pole according to claim 1, characterized in that The side surface of the column body is composed of a plurality of mutually connected rectangular surfaces.

10. A battery, characterized in that: The invention comprises the pole according to any one of claims 1 to 9.

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