Terminal structure, top cover assembly, housing assembly, individual battery cells and battery pack

Abstract

This utility model relates to the field of battery technology, providing a terminal structure, a top cover assembly, a housing assembly, a single battery cell, and a battery pack. The terminal structure includes a terminal post assembly and a seal. The terminal post assembly includes a main body and a first connecting portion and a second connecting portion spaced apart from each other and arranged around the periphery of the main body. The seal is fitted onto the main body and is located between the first connecting portion and the second connecting portion. One of the first connecting portion and the seal has a first protrusion protruding towards the other, abutting against the other; and / or, one of the second connecting portion and the seal has a second protrusion protruding towards the other, abutting against the other. This prevents the seal from failing due to creep, extending its service life and ensuring the battery's sealing performance during long-cycle use.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, specifically to a terminal structure, a top cover assembly, a housing assembly, a single battery cell, and a battery pack. Background Technology

[0002] In related technologies, in the terminal structure of a single battery cell, plastic components are typically riveted to the terminals and pressure rings to achieve terminal sealing. As the battery is used, the plastic components gradually creep, causing the connection between them and the terminals and pressure rings to loosen, resulting in sealing failure or insulation failure. Utility Model Content

[0003] The embodiments of this utility model provide a terminal structure, a top cover assembly, a housing assembly, a single battery cell, and a battery pack, which can improve the sealing performance of the terminal structure and at least partially solve the above-mentioned technical problems.

[0004] In a first aspect, embodiments of the present invention provide a terminal structure, comprising:

[0005] The pole assembly includes a main body and a first connecting part and a second connecting part that are arranged around the periphery of the main body and spaced apart from each other.

[0006] A sealing element is fitted onto the main body portion, and the sealing element is located between the first connecting portion and the second connecting portion;

[0007] Wherein, one of the first connecting portion and the sealing member is constructed with a first protrusion protruding toward the other, the first protrusion abutting against the other; and / or, one of the second connecting portion and the sealing member is constructed with a second protrusion protruding toward the other, the second protrusion abutting against the other.

[0008] In one embodiment, the terminal structure further includes:

[0009] A cover plate is fitted onto the main body, wherein the cover plate is spaced between the first connecting portion and the second connecting portion, and part of the sealing member is located between the cover plate and the first connecting portion, and part is located between the cover plate and the second connecting portion.

[0010] In one embodiment, along the first direction, the width of the overlapping portion of the projections of the seal, the cover plate, and the first connecting portion is A4, wherein the width of the first protrusion is A6, satisfying: 2%A4≤A6≤80%A4.

[0011] In one embodiment, along the first direction, the width of the overlapping portion of the projections of the seal, the cover plate, and the second connecting portion is B4, wherein the width of the second protrusion is B6, satisfying: 2%B4≤B6≤80%B4.

[0012] In one embodiment, the seal includes:

[0013] The first sealing part is fitted around the periphery of the main body and is located between the first connecting part and the cover plate;

[0014] The second sealing part is fitted around the periphery of the main body and is located between the second connecting part and the cover plate;

[0015] The third sealing part is fitted around the periphery of the main body and is connected between the first sealing part and the second sealing part.

[0016] In one embodiment, the first protrusion is formed on the first connecting portion and abuts against the first sealing portion, and / or, the second protrusion is formed on the second connecting portion and abuts against the second sealing portion.

[0017] In one embodiment, the first sealing portion includes:

[0018] The first sealing section is fitted onto the periphery of the main body;

[0019] The first insulating section is arranged around the first sealing section;

[0020] Wherein, the first protrusion abuts against the first sealing section, and / or the first protrusion abuts against the first insulating section.

[0021] In one embodiment, the first sealing portion has a first state and a second state. In the first state, the first sealing segment and the first insulating segment are spaced apart. In the second state, the first sealing segment abuts against the first insulating segment. The first sealing portion is configured to press against the first sealing segment and / or the first insulating segment through the first protrusion to switch from the first state to the second state.

[0022] In one embodiment, the distance between the first connecting portion and the cover plate is C1, and the protrusion height of the first protrusion is C2, satisfying: 0.03 mm ≤ C2 ≤ 60% C1.

[0023] In one embodiment, the first protrusion abuts against the first sealing section. Along the first direction, the width of the overlapping portion of the projections of the first sealing section, the cover plate, and the first connecting portion is C3, and the width of the first protrusion is C4, satisfying: 1%C3≤C4≤80%C3.

[0024] In one embodiment, the first protrusion abuts against the first sealing section. Along the first direction, the width of the overlapping portion of the projections of the first sealing section, the cover plate, and the first connecting part is C3. Along the second direction, the distance between the first insulating section and the first protrusion is C5, satisfying: 1%C3≤C5≤50%C3, wherein the first direction and the second direction are set at an angle.

[0025] In one embodiment, the first protrusion abuts against the first insulating segment. Along the first direction, the width of the overlapping portion of the projections of the first insulating segment, the cover plate, and the first connecting portion is C6, and the width of the first protrusion is C4, satisfying: 1%C6≤C4≤80%C6.

[0026] In one embodiment, the first protrusion abuts against the first insulating segment. Along the first direction, the width of the overlapping portion of the projections of the first insulating segment, the cover plate, and the first connecting portion is C6. Along the second direction, the distance between the first sealing segment and the first protrusion is C7, satisfying: 1%C6≤C7≤50%C6, wherein the first direction and the second direction are set at an angle.

[0027] In one embodiment, the second sealing portion includes:

[0028] The second sealing section is fitted onto the periphery of the main body;

[0029] The second insulating section is arranged around the second sealing section;

[0030] Wherein, the second protrusion abuts against the second sealing section, and / or, the second protrusion abuts against the second insulating section.

[0031] In one embodiment, the second sealing portion has a third state and a fourth state. In the third state, the second sealing segment and the second insulating segment are spaced apart. In the fourth state, the second sealing segment abuts against the second insulating segment. The second sealing portion is configured to press against the second sealing segment and / or the second insulating segment through the second protrusion to switch from the third state to the fourth state.

[0032] In one embodiment, the distance between the second connecting portion and the cover plate is D1, and the protrusion height of the second protrusion is D2, satisfying: 0.03 mm ≤ D2 ≤ 60% D1.

[0033] In one embodiment, the second protrusion abuts against the second sealing section. Along the first direction, the width of the overlapping portion of the projections of the second sealing section, the cover plate, and the second connecting portion is D3, and the width of the second protrusion is D4, satisfying: 1%D3≤D4≤80%D3.

[0034] In one embodiment, the second protrusion abuts against the second sealing section. Along the first direction, the width of the overlapping portion of the projections of the second sealing section, the cover plate, and the second connecting part is D3. Along the second direction, the distance between the second insulating section and the second protrusion is D5, satisfying: 1%D3≤D5≤50%D3, wherein the first direction and the second direction are set at an angle.

[0035] In one embodiment, the second protrusion abuts against the second insulating segment. Along the first direction, the width of the overlapping portion of the projections of the second insulating segment, the cover plate, and the second connecting portion is D6, and the width of the first protrusion is D4, satisfying: 1%D6≤D4≤80%D6.

[0036] In one embodiment, the second protrusion abuts against the second insulating section. Along the first direction, the width of the overlapping portion of the projections of the second insulating section, the cover plate, and the second connecting part is D6. Along the second direction, the distance between the second sealing section and the second protrusion is D7, satisfying: 1%D6≤D7≤50%D6, wherein the first direction and the second direction are set at an angle.

[0037] In one embodiment, the end of the first sealing portion away from the third sealing portion is provided with a first flange protruding toward the first connecting portion, and the first flange is sleeved on the first connecting portion; and / or

[0038] The second sealing part has a second flange protruding towards the second connecting part at one end away from the third sealing part, and the second flange is sleeved on the second connecting part.

[0039] In one embodiment, the main body includes:

[0040] The pole post, wherein the first connecting portion is arranged around the periphery of the pole post;

[0041] A pressure ring is sleeved on the pole post, and a second connecting part is arranged around the periphery of the pressure ring. The pole post, the pressure ring, the first connecting part, and the second connecting part together form an installation groove, and the sealing element is disposed in the installation groove.

[0042] Secondly, embodiments of the present invention provide a top cover assembly, including the terminal structure as described above.

[0043] Thirdly, embodiments of the present invention provide a housing assembly including the terminal structure as described above.

[0044] Fourthly, embodiments of the present invention provide a single battery cell, including the terminal structure as described above, or the top cover assembly as described above, or the housing assembly as described above.

[0045] Fifthly, embodiments of the present invention provide a battery pack including the single battery cell as described above.

[0046] The beneficial effects of the embodiments of this utility model are as follows:

[0047] In embodiments of this invention, a seal is fitted onto the main body to achieve a seal for the terminal assembly. The first connecting portion and the seal abut against each other via a first protrusion, and / or the second connecting portion and the seal abut against each other via a second protrusion, allowing the seal to be deformed by compression. This reduces stress concentration during the sealing process, thus suppressing creep and permanent compression deformation of the seal. Consequently, creep-induced sealing or insulation failure due to creep can be prevented, extending the seal's lifespan and ensuring the battery's sealing performance during long-cycle use. Attached Figure Description

[0048] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0049] Figure 1 This is one of the cross-sectional views of the terminal structure provided in the embodiments of this utility model;

[0050] Figure 2 This is a second cross-sectional view of the terminal structure provided in an embodiment of this utility model;

[0051] Figure 3 This is the third cross-sectional view of the terminal structure provided in the embodiment of this utility model.

[0052] Explanation of reference numerals in the attached figures:

[0053] 1. Pole post assembly; 11. Main body; 111. Pole post; 112. Pressure ring; 113. Mounting groove; 12. First connecting part; 13. Second connecting part;

[0054] 2. Sealing element; 21. First sealing part; 211. First sealing section; 212. First insulating section; 213. First flange; 214. First gap; 22. Second sealing part; 221. Second sealing section; 222. Second insulating section; 223. Second flange; 224. Second gap; 23. Third sealing part;

[0055] 3. Cover plate;

[0056] 4. First protrusion;

[0057] 5. Second protrusion. Detailed Implementation

[0058] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model. In addition, it should be understood that the specific embodiments described herein are only for illustration and explanation of the present utility model and are not intended to limit the present utility model. In the present utility model, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the upper and lower positions of the device in actual use or operation, specifically the drawing directions in the accompanying drawings; while "inner" and "outer" refer to the outline of the device.

[0059] According to a first aspect of the embodiments of this application, referring to... Figures 1 to 3 This application provides a terminal structure. The terminal structure includes a terminal post assembly 1 and a sealing member 2. The terminal post assembly 1 includes a main body 11 and a first connecting portion 12 and a second connecting portion 13 spaced apart from each other around the periphery of the main body 11. The sealing member 2 is sleeved on the main body 11 and is located between the first connecting portion 12 and the second connecting portion 13. One of the first connecting portion 12 and the sealing member 2 has a first protrusion 4 protruding towards the other, which abuts against the other; and / or, one of the second connecting portion 13 and the sealing member 2 has a second protrusion 5 protruding towards the other, which abuts against the other.

[0060] In this embodiment, the sealing element 2 is fitted onto the main body 11 to achieve a seal for the terminal assembly 1. The first connecting portion 12 and the sealing element 2 abut against each other via a first protrusion 4, and / or the second connecting portion 13 and the sealing element 2 abut against each other via a second protrusion 5, allowing the sealing element 2 to be deformed by compression. This reduces stress concentration during the riveting process of the sealing element 2, thereby suppressing creep and permanent compression deformation of the sealing element 2. Thus, creep-induced sealing or insulation failure of the sealing element 2 can be prevented, extending its service life and ensuring the battery's sealing performance during long-cycle life.

[0061] It is understandable that this terminal structure can be used for cylindrical batteries, prismatic batteries, etc. When this terminal structure is applied to a cylindrical battery, the seal 2, the first connecting part 12, and the second connecting part 13 can all be configured as annular.

[0062] In some embodiments, the first protrusion 4 is formed on the side of the first connecting portion 12 facing the seal 2. Thus, when the seal 2 is installed on the terminal assembly 1, the first protrusion 4 can compress and deform the seal 2 to reduce stress concentration during the riveting process of the seal 2, suppress creep and permanent compression deformation of the seal 2, improve the service life of the seal 2, and ensure the sealing performance of the battery during long cycle life.

[0063] In some embodiments, the first protrusion 4 is formed on the side of the seal 2 facing the first connecting portion 12. Thus, when the seal 2 is installed on the terminal assembly 1, the first protrusion 4 can be squeezed and deformed by the first connecting portion 12 to reduce stress concentration during the riveting process of the seal 2, suppress creep and permanent compression deformation of the seal 2, improve the service life of the seal 2, and ensure the sealing performance of the battery during long cycle life.

[0064] In some embodiments, the second protrusion 5 is constructed on the side of the second connection portion 13 facing the seal 2. Thus, when the seal 2 is installed on the terminal assembly 1, the second protrusion 5 can compress and deform the seal 2 to reduce stress concentration during the riveting process of the seal 2, suppress creep and permanent compression deformation of the seal 2, improve the service life of the seal 2, and ensure the sealing performance of the battery during long cycle life.

[0065] In some embodiments, the second protrusion 5 is formed on the side of the seal 2 facing the second connecting portion 13. Thus, when the seal 2 is installed on the terminal assembly 1, the second protrusion 5 can be squeezed and deformed by the second connecting portion 13 to reduce stress concentration during the riveting process of the seal 2, suppress creep and permanent compression deformation of the seal 2, improve the service life of the seal 2, and ensure the sealing performance of the battery during long cycle life.

[0066] In some embodiments, the seal 2 is a plastic part, and the pole assembly 1 is a metal part. It should be noted that when the first protrusion 4 is constructed on the seal 2, the first protrusion 4 is integrally formed with the seal 2, and the first protrusion 4 is also made of plastic; therefore, the first protrusion 4 can be deformed by the first connecting part 12. When the second protrusion 5 is constructed on the seal 2, the second protrusion 5 is integrally formed with the seal 2, and the second protrusion 5 is also made of plastic; therefore, the second protrusion 5 can be deformed by the second connecting part 13. When the first protrusion 4 is constructed on the first connecting part 12, the first protrusion 4 is integrally formed with the first connecting part 12, and the first protrusion 4 is also a metal part; therefore, the first protrusion 4 can deform the seal 2 by compressing it. When the second protrusion 5 is constructed on the second connecting part 13, the second protrusion 5 is integrally formed with the second connecting part 13, and the second protrusion 5 is also a metal part; therefore, the second protrusion 5 can deform the seal 2 by compressing it.

[0067] like Figure 1 As shown, in some embodiments, the terminal structure further includes a cover plate 3. The cover plate 3 is sleeved on the main body 11. The cover plate 3 is spaced between the first connecting portion 12 and the second connecting portion 13. Part of the sealing member 2 is located between the cover plate 3 and the first connecting portion 12, and part is located between the cover plate 3 and the second connecting portion 13.

[0068] It is understood that the cover plate 3 can be connected to the housing of a single battery cell to seal the top opening of the housing. The cover plate 3 can be integrally formed with the housing or connected separately. Since the cover plate 3 is located between the first connecting part 12 and the second connecting part 13, and part of the sealing element 2 is located between the cover plate 3 and the first connecting part 12, and part is located between the cover plate 3 and the second connecting part 13, the first inclined surface of the first connecting part 12 can press part of the sealing element 2 towards the first side of the cover plate 3, causing part of the sealing element 2 to deform between the first connecting part 12 and the cover plate 3, thereby sealing the first connecting part 12 and the cover plate 3. Similarly, the second inclined surface of the second connecting part 13 can press part of the sealing element 2 towards the second side of the cover plate 3, causing part of the sealing element 2 to deform between the second connecting part 13 and the cover plate 3, thereby sealing the second connecting part 13 and the cover plate 3.

[0069] In some embodiments, the cover plate 3 is an aluminum plate.

[0070] like Figure 1 As shown, in some embodiments, the width of the overlapping portion of the projections of the seal 2, cover plate 3, and first connecting portion 12 along the first direction is A4. The width of the first protrusion 4 is A6, satisfying: 2%A4≤A6≤80%A4.

[0071] It is understandable that the width A6 of the first protrusion 4 is set in the range of 2%A4 to 80%A4 to ensure that the first protrusion 4 has sufficient compression width for the seal 2, to ensure the sealing performance at the first protrusion 4, and to prevent the compression area of ​​the first protrusion 4 from being too large, which would cause severe deformation of the overall structure.

[0072] If the width A6 of the first protrusion 4 is less than 2%A4, the compression width between the first protrusion 4 and the seal 2 is insufficient, resulting in poor sealing effect of the first connecting part 12 at the first protrusion 4 and affecting the sealing performance.

[0073] If the width A6 of the first protrusion 4 is greater than 80% of A4, the compression width between the first protrusion 4 and the seal 2 is too large, causing severe deformation of the overall structure.

[0074] For example, the width A6 of the first protrusion 4 can be set to 2%A4, 20%A4, 40%A4, 60%A4, 80%A4, or any value between the two.

[0075] For example, if the width A4 of the overlapping portion of the projection of the seal 2, the cover plate 3 and the first connecting part 12 is set to 2 mm, then the width A6 of the first protrusion 4 can be set to 0.1 mm, 0.5 mm, 1 mm, 1.6 mm, or any value between any two.

[0076] like Figure 1 As shown, in some embodiments, the width of the overlapping portion of the projections of the seal 2, cover plate 3, and second connecting portion 13 along the first direction is B4. The width of the second protrusion 5 is B6, satisfying: 2%B4≤B6≤80%B4.

[0077] It is understandable that the width B6 of the second protrusion 5 is set within the range of 2%B4 to 80%B4 to ensure that the second protrusion 5 has sufficient compression width for the seal 2, to ensure the sealing performance at the second protrusion 5, and to prevent the compression area of ​​the second protrusion 5 from being too large, which would cause severe deformation of the overall structure.

[0078] If the width B6 of the second protrusion 5 is less than 2%B4, the compression width between the second protrusion 5 and the seal 2 is insufficient, resulting in poor sealing effect of the second connecting part 13 at the second protrusion 5 and affecting the sealing performance.

[0079] If the width B6 of the second protrusion 5 is greater than 80% of B4, the compression width between the second protrusion 5 and the seal 2 is too large, causing severe deformation of the overall structure.

[0080] For example, the width B6 of the second protrusion 5 can be set to 2%B4, 20%B4, 40%B4, 60%B4, 80%B4, or any value between the two.

[0081] For example, if the width B4 of the overlapping portion of the projection of the seal 2, the cover plate 3 and the second connecting part 13 is set to 2 mm, then the width B6 of the second protrusion 5 can be set to 0.1 mm, 0.5 mm, 1 mm, 1.6 mm, or any value between any two.

[0082] Please continue reading. Figure 1 In some embodiments, the seal 2 includes a first sealing portion 21, a second sealing portion 22, and a third sealing portion 23. The first sealing portion 21 is fitted around the periphery of the main body portion 11 and is located between the first connecting portion 12 and the cover plate 3. The second sealing portion 22 is fitted around the periphery of the main body portion 11 and is located between the second connecting portion 13 and the cover plate 3. The third sealing portion 23 is fitted around the periphery of the main body portion 11 and connects the first sealing portion 21 and the second sealing portion 22.

[0083] Understandably, the first sealing part 21 is located between the first connecting part 12 and the cover plate 3, and is used to achieve a sealed connection between the first connecting part 12 and the cover plate 3. The second sealing part 22 is located between the second connecting part 13 and the cover plate 3, and is used to achieve a sealed connection between the second connecting part 13 and the cover plate 3. Both the first sealing part 21 and the second sealing part 22 can be configured as annular. The third sealing part 23 is used to seal the connection between the first sealing part 21 and the second sealing part 22, so that the seal 2 formed by the three parts can reliably seal the pole assembly 1 and the cover plate 3.

[0084] In some embodiments, the third sealing portion 23 is integrally formed on the first sealing portion 21, and the third sealing portion 23 abuts against the second sealing portion 22.

[0085] In some embodiments, the third sealing portion 23 is integrally formed on the second sealing portion 22, and the third sealing portion 23 abuts against the first sealing portion 21.

[0086] In some embodiments, the third sealing portion 23 includes a first sealing segment and a second sealing segment, the first sealing segment being integrally formed on the first sealing portion 21, the second sealing segment being integrally formed on the second sealing portion 22, and the first sealing segment abutting against the second sealing segment.

[0087] Please continue reading. Figure 1 In some embodiments, a first protrusion 4 is formed on a first connecting portion 12. The first protrusion 4 abuts against a first sealing portion 21. And / or, a second protrusion 5 is formed on a second connecting portion 13, and the second protrusion 5 abuts against a second sealing portion 22.

[0088] Understandably, the first protrusion 4 is constructed on the side of the first connecting portion 12 facing the seal 2. Therefore, when the seal 2 is installed in the terminal assembly 1, the first protrusion 4 can deform the seal 2 by compression, reducing stress concentration during the riveting process, suppressing creep and permanent compression deformation of the seal 2, thus extending its service life and ensuring the battery's sealing performance during long-cycle use. The second protrusion 5 is constructed on the side of the second connecting portion 13 facing the seal 2. Therefore, when the seal 2 is installed in the terminal assembly 1, the second protrusion 5 can deform the seal 2 by compression, reducing stress concentration during the riveting process, suppressing creep and permanent compression deformation of the seal 2, thus extending its service life and ensuring the battery's sealing performance during long-cycle use.

[0089] like Figure 2 As shown, in some embodiments, the first sealing portion 21 includes a first sealing section 211 and a first insulating section 212. The first sealing section 211 is sleeved around the periphery of the main body portion 11. The first insulating section 212 is circumferentially disposed around the first sealing section 211. The first protrusion 4 abuts against the first sealing section 211, and / or the first protrusion 4 abuts against the first insulating section 212.

[0090] It is understandable that by dividing the first sealing part 21 into a first sealing section 211 and a first insulating section 212, with the first insulating section 212 surrounding the first sealing section 211, the first sealing part 21 can be designed with external insulation and internal sealing. This separates the sealing and insulation functions of the first sealing part 21, allowing for the selection of different materials based on their different functions, thereby improving the service life and reliability of the first sealing part 21.

[0091] Both the first sealing section 211 and the first insulating section 212 are annular, with the first insulating section 212 surrounding the first sealing section 211. They are spaced apart or fitted together. When the first insulating section 212 and the first sealing section 211 are spaced apart, a first gap 214 is formed between them. The first protrusion 4 presses against the first insulating section 212 and / or the first sealing section 211, causing the first insulating section 212 and / or the first sealing section 211 to deform and fill the first gap 214, thus abutting against the first sealing section 211 and achieving sealing and insulation. When the first insulating section 212 and the first sealing section 211 are fitted together, the first protrusion 4 presses against the first insulating section 212 and / or the first sealing section 211, causing them to deform in a direction away from each other, also achieving good sealing and insulation.

[0092] In some embodiments, at least two first protrusions 4 are provided. The at least two first protrusions 4 are arranged circumferentially spaced apart. Each of the at least two first protrusions 4 abuts against the first sealing section 211.

[0093] In some embodiments, at least two first protrusions 4 are provided. The at least two first protrusions 4 are arranged circumferentially spaced apart. Each of the at least two first protrusions 4 abuts against the first insulating segment 212.

[0094] In some embodiments, at least two first protrusions 4 are provided. At least two first protrusions 4 are arranged circumferentially to form a first protrusion unit. The first protrusion unit is provided to be at least two, and abuts against the first sealing section 211 and the first insulating section 212 respectively.

[0095] It should be noted that both the first sealing section 211 and the first insulating section 212 are made of plastic. Based on their respective functions, different types of plastic can be selected to ensure that the first sealing section 211 and the first insulating section 212 each have good performance, extend the service life of the first sealing part 21, and improve the reliability of the first sealing part 21.

[0096] In some embodiments, the first sealing portion 21 has a first state and a second state. In the first state, the first sealing segment 211 and the first insulating segment 212 are spaced apart. In the second state, the first sealing segment 211 abuts against the first insulating segment 212. The first sealing portion 21 is configured to press against the first sealing segment 211 and / or the first insulating segment 212 via the first protrusion 4 to switch from the first state to the second state.

[0097] Understandably, when the first sealing portion 21 is in the first state, the first sealing segment 211 and the first insulating segment 212 have not yet been deformed by the first protrusion 4. At this time, the first sealing segment 211 and the first insulating segment 212 are spaced apart to form a first gap 214. When the first sealing portion 21 is in the second state, at least one of the first sealing segment 211 and the first insulating segment 212 is compressed by the first protrusion 4, and the first gap 214 is filled based on the compression, so that the first sealing segment 211 and the first insulating segment 212 abut against each other to achieve a sealing and insulation effect.

[0098] It should be noted that the first state is the state in which the first sealing part 21 has not yet been assembled to the pole post assembly 1, and the second state is the state in which the first sealing part 21 has been assembled to the pole post assembly 1.

[0099] like Figure 2 and Figure 3 As shown, in some embodiments, the distance between the first connecting portion 12 and the cover plate 3 is C1. The protrusion height of the first protrusion 4 is C2, satisfying: 0.03 mm ≤ C2 ≤ 60% C1.

[0100] Understandably, the height C2 of the first protrusion 4 is set within the range of 0.03 mm to 60% of C1 to ensure that the first protrusion 4 has sufficient protrusion height to compress the first sealing section 211 and / or the first insulating section 212, so that the first sealing section 211 and / or the first insulating section 212 are compressed and come into contact, thereby forming a good sealing and insulation effect. At the same time, it prevents the height of the first protrusion 4 from being too large, which would cause the first sealing section 211 and / or the first insulating section 212 to be compressed and fail, thus losing the sealing / insulation effect.

[0101] If the height C2 of the first protrusion 4 is less than 0.03 mm, the amount of compression deformation of the first sealing section 211 and / or the first insulating section 212 will be insufficient, so that the deformed part cannot fill the first gap 214 between the first sealing section 211 and the first insulating section 212, affecting the sealing and insulation effect.

[0102] If the height C2 of the first protrusion 4 is greater than 60% of C1, it will cause excessive compression deformation of the first sealing section 211 and / or the first insulating section 212, resulting in the first sealing section 211 and / or the first insulating section 212 being compressed and failing, thus losing the sealing / insulation effect.

[0103] In some embodiments, the distance C1 between the first connecting portion 12 and the cover plate 3 is set to 2 mm. Then the height C2 of the first protrusion 4 is set in the range of 0.03 mm to 1.2 mm. For example, the height C2 of the first protrusion 4 is set to 0.03 mm, 0.1 mm, 0.5 mm, 1 mm, 1.2 mm, or any value between any two.

[0104] Please continue reading. Figure 2 and Figure 3 In some embodiments, the first protrusion 4 abuts against the first sealing section 211. Along the first direction, the width of the overlapping portion of the projections of the first sealing section 211, the cover plate 3, and the first connecting portion 12 is C3. The width of the first protrusion 4 is C4, satisfying: 1%C3≤C4≤80%C3.

[0105] Understandably, when the first protrusion 4 is constructed on the side of the first connecting portion 12 facing the seal 2 and the first protrusion 4 abuts against the first sealing section 211, the width C4 of the first protrusion 4 is set within the range of 1%C3 to 80%C3. This ensures that the first protrusion 4 has sufficient width to compress the first sealing section 211, so that the first sealing section 211, after being compressed, abuts against the first insulating section 212, thereby forming a good sealing effect. At the same time, it prevents the width of the first protrusion 4 from being too large, which could cause the first sealing section 211 to be compressed and fail, thus losing its sealing effect.

[0106] If the width C4 of the first protrusion 4 is less than 1% C3, the amount of compression deformation of the first sealing section 211 will be insufficient, and the deformed part will not be able to fill the first gap 214 between the first sealing section 211 and the first insulating section 212, thus affecting the sealing and insulation effect.

[0107] If the width C4 of the first protrusion 4 is greater than 80% of C3, it will cause the first sealing section 211 to be deformed by excessive compression, resulting in the first sealing section 211 being squeezed and failing to seal.

[0108] In some embodiments, the width C4 of the first protrusion 4 is set to 1%C3, 20%C3, 40%C3, 60%C3, 80%C3, or any value between the two.

[0109] For example, if the width C3 of the overlapping portion of the projections of the first sealing section 211, the cover plate 3, and the first connecting part 12 is set to 3 mm, then the width C4 of the protrusion can be set to 0.03 mm, 0.1 mm, 1 mm, 1.5 mm, 2 mm, 2.4 mm, or any value between any two.

[0110] Please continue reading. Figure 2 and Figure 3 In some embodiments, the first protrusion 4 abuts against the first sealing section 211. Along the first direction, the width of the overlapping portion of the projections of the first sealing section 211, the cover plate 3, and the first connecting portion 12 is C3. Along the second direction, the distance between the first insulating section 212 and the first protrusion 4 is C5. The following conditions are met: 1%C3≤C5≤50%C3, wherein the first direction and the second direction are at an angle.

[0111] It is understandable that when the first protrusion 4 is constructed on the side of the first connecting portion 12 facing the seal 2 and the first protrusion 4 abuts against the first sealing section 211, the distance C5 between the first insulating section 212 and the first protrusion 4 is set in the range of 1%C3 to 50%C3, so as to ensure that the first sealing section 211 can fill the first gap 214 between the first sealing section 211 and the first insulating section 212 after being squeezed, and to prevent the first insulating section 212 from being squeezed outward after the first sealing section 211 is squeezed, thus causing the first insulating section 212 to fall off.

[0112] If the distance C5 between the first insulating section 212 and the first protrusion 4 is less than 1%C3, when the first protrusion 4 squeezes the first sealing section 211, the first sealing section 211 will quickly fill the first gap 214 after deformation. As the first sealing section 211 further deforms, it will push the first insulating section 212 outward, causing the first insulating section 212 to fall off.

[0113] If the distance C5 between the first insulating section 212 and the first protrusion 4 is greater than 50% C3, the first sealing section 211 will be unable to fill the first gap 214 between the first sealing section 211 and the first insulating section 212 after being squeezed, thus affecting the sealing and insulation effect.

[0114] For example, if the width C3 of the overlapping portion of the projection of the first sealing section 211, the cover plate 3 and the first connecting part 12 is set to 3 mm, then the distance C5 between the first insulating section 212 and the first protrusion 4 can be set to 0.03 mm, 0.1 mm, 1 mm, 1.5 mm, or any value between any two.

[0115] In some embodiments, the first direction is the axial direction of the pole assembly 1, and the second direction is the radial direction of the pole assembly 1.

[0116] Please continue reading. Figure 2 and Figure 3 In some embodiments, the first protrusion 4 abuts against the first insulating section 212. Along the first direction, the width of the overlapping portion of the projections of the first insulating section 212, the cover plate 3, and the first connecting portion 12 is C6, and the width of the first protrusion 4 is C4, satisfying: 1%C6≤C4≤80%C6.

[0117] Understandably, when the first protrusion 4 is constructed on the side of the first connecting portion 12 facing the seal 2 and the first protrusion 4 abuts against the first insulating section 212, the width C4 of the first protrusion 4 is set within the range of 1%C6 to 80%C6. This ensures that the first protrusion 4 has sufficient width to compress the first insulating section 212, so that after being compressed, it abuts against the first insulating section 212, thereby forming a good insulation effect. At the same time, it prevents the width of the first protrusion 4 from being too large, which would cause the first insulating section 212 to be compressed and fail, thus losing its insulation effect.

[0118] If the width C4 of the first protrusion 4 is less than 1%C6, the amount of compression deformation of the first insulating section 212 will be insufficient, and the deformed part will not be able to fill the first gap 214 between the first sealing section 211 and the first insulating section 212, thus affecting the sealing and insulation effect.

[0119] If the width C4 of the first protrusion 4 is greater than 80% C6, it will cause the first insulating segment 212 to be deformed by excessive compression, resulting in the first insulating segment 212 being compressed and failing, thus losing its insulating effect.

[0120] In some embodiments, the width C4 of the first protrusion 4 is set to 1%C6, 20%C6, 40%C6, 60%C6, 80%C6, or any value between the two.

[0121] For example, if the width C6 of the overlapping portion of the projections of the first insulating section 212, the cover plate 3, and the first connecting portion 12 is set to 3 mm, then the width C4 of the protrusion can be set to 0.03 mm, 0.1 mm, 1 mm, 1.5 mm, 2 mm, 2.4 mm, or any value between any two.

[0122] In some embodiments, the first protrusion 4 abuts against the first insulating section 212. Along the first direction, the width of the overlapping portion of the projections of the first insulating section 212, the cover plate 3, and the first connecting portion 12 is C6. Along the second direction, the distance between the first sealing section 211 and the first protrusion 4 is C7, satisfying: 1%C6≤C7≤50%C6, wherein the first direction and the second direction are set at an angle.

[0123] Understandably, when the first protrusion 4 is constructed on the side of the first connecting portion 12 facing the seal 2 and the first protrusion 4 abuts against the first insulating section 212, the distance C7 between the first sealing section 211 and the first protrusion 4 is set in the range of 1%C6 to 50%C6, so as to ensure that the first insulating section 212 can fill the first gap 214 between the first sealing section 211 and the first insulating section 212 after being squeezed, and to prevent the first insulating section 212 from moving outward and falling off after being squeezed.

[0124] If the distance C7 between the first sealing section 211 and the first protrusion 4 is less than 1%C6, when the first protrusion 4 squeezes the first insulating section 212, the inner side of the first insulating section 212 will quickly fill the first gap 214 after being squeezed, and the outer side will move outward, making it easy for it to fall off.

[0125] If the distance C5 between the first insulating section 212 and the first protrusion 4 is greater than 5%C6, the first insulating section 212 will be unable to fill the first gap 214 between the first sealing section 211 and the first insulating section 212 after being squeezed, thus affecting the sealing and insulation effect.

[0126] For example, if the width C6 of the overlapping portion of the projection of the first insulating section 212, the cover plate 3 and the first connecting part 12 is set to 3 mm, then the distance C7 between the first sealing section 211 and the first protrusion 4 can be set to 0.03 mm, 0.1 mm, 1 mm, 1.5 mm, or any value between any two.

[0127] Please continue reading. Figure 2 and Figure 3In some embodiments, the second sealing portion 22 includes a second sealing section 221 and a second insulating section 222. The second sealing section 221 is sleeved around the periphery of the main body portion 11. The second insulating section 222 is circumferentially disposed around the second sealing section 221. The second protrusion 5 abuts against the second sealing section 221, and / or the second protrusion 5 abuts against the second insulating section 222.

[0128] It is understandable that by dividing the second sealing portion 22 into a second sealing section 221 and a second insulating section 222, with the second insulating section 222 surrounding the second sealing section 221, the second sealing portion 222 can be designed with external insulation and internal sealing. This separates the sealing and insulation functions of the second sealing portion 22, allowing for the selection of different materials based on their different functions, thereby improving the service life and reliability of the second sealing portion 22.

[0129] Both the second sealing section 221 and the second insulating section 222 are annular, with the second insulating section 222 surrounding the second sealing section 221. They are spaced apart or fitted together. When the second insulating section 222 and the second sealing section 221 are spaced apart, a second gap 224 is formed between them. The second protrusion 5 compresses the second insulating section 222 and / or the second sealing section 221, causing them to deform and fill the second gap 224, thus abutting against the second sealing section 221 and achieving sealing and insulation. When the second insulating section 222 and the second sealing section 221 are fitted together, the second protrusion 5 compresses the second insulating section 222 and / or the second sealing section 221, causing them to deform away from each other, also achieving good sealing and insulation.

[0130] In some embodiments, at least two second protrusions 5 are provided. The at least two second protrusions 5 are spaced apart circumferentially. Each of the at least two second protrusions 5 abuts against the second sealing section 221.

[0131] In some embodiments, at least two second protrusions 5 are provided. The at least two second protrusions 5 are spaced apart circumferentially. Each of the at least two second protrusions 5 abuts against the second insulating segment 222.

[0132] In some embodiments, at least two second protrusions 5 are provided. At least two second protrusions 5 are arranged circumferentially to form a second protrusion unit. The second protrusion unit is provided to abut against the second sealing section 221 and the second insulating section 222, respectively.

[0133] It should be noted that both the second sealing section 221 and the second insulating section 222 are made of plastic. Based on their respective functions, different types of plastic can be selected to ensure that the second sealing section 221 and the second insulating section 222 each possess good performance, extending the service life of the second sealing section 22 and improving its reliability.

[0134] In some embodiments, the second sealing portion 22 has a third state and a fourth state. In the third state, the second sealing segment 221 and the second insulating segment 222 are spaced apart. In the fourth state, the second sealing segment 221 abuts against the second insulating segment 222. The second sealing portion 22 is configured to press against the second sealing segment 221 and / or the second insulating segment 222 via the second protrusion 5 to switch from the third state to the fourth state.

[0135] Understandably, when the second sealing portion 22 is in the third state, the second sealing segment 221 and the second insulating segment 222 have not yet been deformed by the second protrusion 5. At this time, the second sealing segment 221 and the second insulating segment 222 are spaced apart to form a second gap 224. When the second sealing portion 22 is in the fourth state, at least one of the second sealing segment 221 and the second insulating segment 222 is compressed by the second protrusion 5, and the second gap 224 is filled based on the compression, so that the second sealing segment 221 and the second insulating segment 222 abut against each other to achieve a sealing and insulation effect.

[0136] It should be noted that the third state is the state in which the second sealing part 22 has not yet been assembled to the pole post assembly 1, and the fourth state is the state in which the second sealing part 22 has been assembled to the pole post assembly 1.

[0137] Please continue reading. Figure 2 and Figure 3 In some embodiments, the distance between the second connecting portion 13 and the cover plate 3 is D1. The protrusion height of the second protrusion 5 is D2, satisfying: 0.03 mm ≤ D2 ≤ 60% D1.

[0138] Understandably, setting the height D2 of the second protrusion 5 within the range of 0.03 mm to 60% of D1 ensures that the second protrusion 5 has sufficient protrusion height to compress the second sealing section 221 and / or the second insulating section 222, allowing them to abut against each other after compression, thus achieving a good sealing and insulation effect. Simultaneously, it prevents the height of the second protrusion 5 from being too large, which could cause the second sealing section 221 and / or the second insulating section 222 to fail under pressure, resulting in a loss of sealing / insulation effect.

[0139] If the height D2 of the second protrusion 5 is less than 0.03 mm, the amount of compression deformation of the second sealing section 221 and / or the second insulating section 222 will be insufficient, so that the deformed part cannot fill the second gap 224 between the second sealing section 221 and the second insulating section 222, affecting the sealing and insulation effect.

[0140] If the height D2 of the second protrusion 5 is greater than 60% of D1, it will cause excessive compression deformation of the second sealing section 221 and / or the second insulating section 222, resulting in the second sealing section 221 and / or the second insulating section 222 being compressed and failing, thus losing the sealing / insulation effect.

[0141] In some embodiments, the distance D1 between the second connecting portion 13 and the cover plate 3 is set to 2 mm. Then the height D2 of the second protrusion 5 is set in the range of 0.03 mm to 1.2 mm. For example, the height D2 of the second protrusion 5 is set to 0.03 mm, 0.1 mm, 0.5 mm, 1 mm, 1.2 mm, or any value between the two.

[0142] Please continue reading. Figure 2 and Figure 3 In some embodiments, the second protrusion 5 abuts against the second sealing section 221. Along the first direction, the width of the overlapping portion of the projections of the second sealing section 221, the cover plate 3, and the second connecting portion 13 is D3. The width of the second protrusion 5 is D4, satisfying: 1%D3≤D4≤80%D3.

[0143] Understandably, when the second protrusion 5 is constructed on the side of the second connecting portion 13 facing the seal 2 and the second protrusion 5 abuts against the second sealing section 221, the width D4 of the second protrusion 5 is set within the range of 1%D3 to 80%D3. This ensures that the second protrusion 5 has sufficient width to compress the second sealing section 221, allowing the second sealing section 221 to abut against the second insulating section 222 after being compressed, thereby achieving a good sealing effect. Simultaneously, it prevents the width of the second protrusion 5 from being too large, which could cause the second sealing section 221 to be compressed and fail, resulting in a loss of sealing effect.

[0144] If the width D4 of the second protrusion 5 is less than 1% of D3, the amount of compression deformation of the second sealing section 221 will be insufficient, and the deformed part will not be able to fill the second gap 224 between the second sealing section 221 and the second insulating section 222, thus affecting the sealing and insulation effect.

[0145] If the width D4 of the second protrusion 5 is greater than 80% of D3, it will cause the second sealing section 221 to be deformed by excessive compression, resulting in the second sealing section 221 being squeezed and failing to seal.

[0146] In some embodiments, the width D4 of the second protrusion 5 is set to 1%D3, 20%D3, 40%D3, 60%D3, 80%D3, or any value between the two.

[0147] For example, if the width D3 of the overlapping portion of the projections of the second sealing section 221, the cover plate 3, and the second connecting part 13 is set to 3 mm, then the width D4 of a protrusion can be set to 0.03 mm, 0.1 mm, 1 mm, 1.5 mm, 2 mm, 2.4 mm, or any value between any two.

[0148] Please continue reading. Figure 2 and Figure 3 In some embodiments, the second protrusion 5 abuts against the second sealing section 221. Along the first direction, the width of the overlapping portion of the projections of the second sealing section 221, the cover plate 3, and the second connecting portion 13 is D3. Along the second direction, the distance between the second insulating section 222 and the second protrusion 5 is D5, satisfying: 1%D3≤D5≤50%D3. The first direction and the second direction are set at an angle.

[0149] It is understandable that when the second protrusion 5 is constructed on the side of the second connecting portion 13 facing the seal 2 and the second protrusion 5 abuts against the second sealing section 221, the distance D5 between the second insulating section 222 and the second protrusion 5 is set in the range of 1%D3 to 50%D3, so as to ensure that the second sealing section 221 can fill the second gap 224 between the second sealing section 221 and the second insulating section 222 after being squeezed, and to prevent the second insulating section 222 from being squeezed outward after the second sealing section 221 is squeezed, thus causing the second insulating section 222 to fall off.

[0150] If the distance D5 between the second insulating section 222 and the second protrusion 5 is less than 1%D3, when the second protrusion 5 presses against the second sealing section 221, the second sealing section 221 will deform and quickly fill the second gap 224. As the second sealing section 221 deforms further, it will push the second insulating section 222 outward, causing the second insulating section 222 to fall off.

[0151] If the distance D5 between the second insulating section 222 and the second protrusion 5 is greater than 50% of D3, the second sealing section 221 will be unable to fill the second gap 224 between the second sealing section 221 and the second insulating section 222 after being squeezed, thus affecting the sealing and insulation effect.

[0152] For example, if the width D3 of the overlapping portion of the projection of the second sealing section 221, the cover plate 3 and the second connecting part 13 is set to 3 mm, then the distance D5 between the second insulating section 222 and the second protrusion 5 can be set to 0.03 mm, 0.1 mm, 1 mm, 1.5 mm, or any value between any two.

[0153] Please continue reading. Figure 2 and Figure 3 In some embodiments, the second protrusion 5 abuts against the second insulating segment 222. Along the first direction, the width of the overlapping portion of the projections of the second insulating segment 222, the cover plate 3, and the second connecting portion 13 is D6. The width of the first protrusion 4 is D4, satisfying: 1%D6≤D4≤80%D6.

[0154] Understandably, when the second protrusion 5 is constructed on the side of the second connecting portion 13 facing the seal 2 and the second protrusion 5 abuts against the second insulating section 222, the width D4 of the second protrusion 5 is set within the range of 1%D6 to 80%D6. This ensures that the second protrusion 5 has sufficient width to compress the second insulating section 222, allowing it to abut against the second insulating section 222 after being compressed, thereby achieving a good insulation effect. Simultaneously, it prevents the width of the second protrusion 5 from being too large, which could cause the second insulating section 222 to be compressed and fail, resulting in a loss of insulation effect.

[0155] If the width D4 of the second protrusion 5 is less than 1% of D6, the amount of compression deformation of the second insulating section 222 will be insufficient, so that the deformed part cannot fill the second gap 224 between the second sealing section 221 and the second insulating section 222, affecting the sealing and insulation effect.

[0156] If the width D4 of the second protrusion 5 is greater than 80% of D6, it will cause the second insulating section 222 to be deformed by excessive compression, resulting in the second insulating section 222 being compressed and failing, thus losing its insulating effect.

[0157] In some embodiments, the width D4 of the second protrusion 5 is set to 1%D6, 20%D6, 40%D6, 60%D6, 80%D6, or any value between the two.

[0158] For example, if the width D6 of the overlapping portion of the projection of the second insulating section 222, the cover plate 3 and the second connecting part 13 is set to 3 mm, then the width D4 of the protrusion can be set to 0.03 mm, 0.1 mm, 1 mm, 1.5 mm, 2 mm, 2.4 mm, or any value between any two.

[0159] In some embodiments, the second protrusion 5 abuts against the second insulating section 222. Along the first direction, the width of the overlapping portion of the projections of the second insulating section 222, the cover plate 3, and the second connecting portion 13 is D6. Along the second direction, the distance between the second sealing section 221 and the second protrusion 5 is D7, satisfying: 1%D6≤D7≤50%D6. The first direction and the second direction are angled.

[0160] It is understandable that when the second protrusion 5 is constructed on the side of the second connecting portion 13 facing the seal 2 and the second protrusion 5 abuts against the second insulating section 222, the distance D7 between the second sealing section 221 and the second protrusion 5 is set in the range of 1%D6 to 50%D6, so as to ensure that the second insulating section 222 can fill the second gap 224 between the second sealing section 221 and the second insulating section 222 after being squeezed, and to prevent the second insulating section 222 from moving outward and falling off after being squeezed.

[0161] If the distance D7 between the second sealing section 221 and the second protrusion 5 is less than 1%D6, when the second protrusion 5 squeezes the second insulating section 222, the inner side of the second insulating section 222 will quickly fill the second gap 224 after being squeezed, and the outer side will move outward, making it easy for it to fall off.

[0162] If the distance D5 between the second insulating section 222 and the second protrusion 5 is greater than 5%D6, the second insulating section 222 will be unable to fill the second gap 224 between the second sealing section 221 and the second insulating section 222 after being squeezed, thus affecting the sealing and insulation effect.

[0163] For example, if the width D6 of the overlapping portion of the projection of the second insulating section 222, the cover plate 3 and the second connecting part 13 is set to 3 mm, then the distance D7 between the second sealing section 221 and the second protrusion 5 can be set to 0.03 mm, 0.1 mm, 1 mm, 1.5 mm, or any value between any two.

[0164] Please continue reading. Figure 1 and Figure 2 In some embodiments, the first sealing portion 21 has a first flange 213 protruding toward the first connecting portion 12 at one end away from the third sealing portion 23, and the first flange 213 is sleeved on the first connecting portion 12. And / or, the second sealing portion 22 has a second flange 223 protruding toward the second connecting portion 13 at one end away from the third sealing portion 23, and the second flange 223 is sleeved on the second connecting portion 13.

[0165] Understandably, the first flange 213 is fitted around the periphery of the first connecting portion 12 to improve the reliability of the connection between the first sealing portion 21 and the first connecting portion 12, ensuring a reliable connection between them. Simultaneously, the contact between the first flange 213 and the first connecting portion 12 increases the sealing area between them, enhancing the sealing effect of the first sealing portion 21 on the first connecting portion 12. Similarly, the second flange 223 is fitted around the periphery of the second connecting portion 13 to improve the reliability of the connection between the second sealing portion 22 and the second connecting portion 13, ensuring a reliable connection between them. Furthermore, the contact between the second flange 223 and the second connecting portion 13 increases the sealing area between them, enhancing the sealing effect of the second sealing portion 22 on the second connecting portion 13.

[0166] Please continue reading. Figure 1 In some embodiments, the main body 11 includes a pole post 111 and a pressure ring 112. A first connecting portion 12 is disposed around the periphery of the pole post 111. The pressure ring 112 is sleeved on the pole post 111. A second connecting portion 13 is disposed around the periphery of the pressure ring 112. The pole post 111, pressure ring 112, first connecting portion 12, and second connecting portion 13 together form a mounting groove 113. A sealing member 2 is disposed within the mounting groove 113.

[0167] Understandably, the first connecting part 12 is integrally formed on the pole post 111 and located at the periphery of the pole post 111. The second connecting part 13 is integrally formed on the pressure ring 112 and located at the periphery of the pressure ring 112. Thus, the four parts form a mounting groove 113 to place the seal 2 in the mounting groove 113 and ensure reliable fixation of the seal 2.

[0168] According to a second aspect of the embodiments of this application, a top cover assembly is provided. The top cover assembly includes the terminal structure as described in the foregoing embodiments. This top cover assembly has all the beneficial effects of the aforementioned terminal structure, which will not be further elaborated upon here.

[0169] According to a third aspect of the embodiments of this application, a housing assembly is provided. The housing assembly includes the terminal structure as described in the foregoing embodiments. This housing assembly possesses all the beneficial effects of the aforementioned terminal structure, which will not be further elaborated upon here.

[0170] According to a fourth aspect of the embodiments of this application, a single battery cell is provided. The single battery cell includes a terminal structure as described in the foregoing embodiments; and / or a top cover assembly as described in the foregoing embodiments; and / or a housing assembly as described in the foregoing embodiments. The single battery cell has all the beneficial effects of the aforementioned terminal structure, top cover assembly, and housing assembly, which will not be elaborated further in the embodiments of this application.

[0171] According to a fifth aspect of the embodiments of this application, a battery pack is provided. The battery pack includes individual battery cells as described in the foregoing embodiments. The battery pack possesses all the beneficial effects of the aforementioned individual battery cells, which will not be repeated here.

[0172] The embodiments of this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A terminal structure characterized by comprising: include: The pole assembly (1) includes a main body (11) and a first connecting part (12) and a second connecting part (13) arranged around the periphery of the main body (11) and spaced apart from each other; A sealing element (2) is fitted onto the main body (11), and the sealing element (2) is located between the first connecting part (12) and the second connecting part (13); Wherein, one of the first connecting part (12) and the sealing member (2) is constructed with a first protrusion (4) protruding toward the other, the first protrusion (4) abutting against the other; and / or, one of the second connecting part (13) and the sealing member (2) is constructed with a second protrusion (5) protruding toward the other, the second protrusion (5) abutting against the other.

2. The terminal structure according to claim 1, characterized by The terminal structure also includes: A cover plate (3) is fitted onto the main body (11), wherein the cover plate (3) is spaced between the first connecting part (12) and the second connecting part (13), and part of the sealing member (2) is located between the cover plate (3) and the first connecting part (12), and part is located between the cover plate (3) and the second connecting part (13).

3. The terminal structure according to claim 2, characterized in that Along the first direction, the width of the overlapping portion of the projection of the seal (2), the cover plate (3) and the first connecting part (12) is A4, wherein the width of the first protrusion (4) is A6, satisfying: 2%A4≤A6≤80%A4.

4. The terminal structure according to claim 2, characterized by Along the first direction, the width of the overlapping portion of the projection of the seal (2), the cover plate (3) and the second connecting part (13) is B4, wherein the width of the second protrusion (5) is B6, satisfying: 2%B4≤B6≤80%B4.

5. The terminal structure according to any one of claims 2 to 4, characterized in that The seal (2) includes: The first sealing part (21) is sleeved on the periphery of the main body part (11) and is located between the first connecting part (12) and the cover plate (3); The second sealing part (22) is fitted around the periphery of the main body part (11) and is located between the second connecting part (13) and the cover plate (3); The third sealing part (23) is fitted around the periphery of the main body part (11) and is connected between the first sealing part (21) and the second sealing part (22).

6. The terminal structure according to claim 5, characterized in that The first protrusion (4) is formed on the first connecting portion (12) and abuts against the first sealing portion (21), and / or the second protrusion (5) is formed on the second connecting portion (13) and abuts against the second sealing portion (22).

7. The terminal structure according to claim 6, characterized in that The first sealing part (21) includes: The first sealing section (211) is fitted around the periphery of the main body (11); The first insulating section (212) is arranged around the first sealing section (211); Wherein, the first protrusion (4) abuts against the first sealing section (211), and / or, the first protrusion (4) abuts against the first insulating section (212).

8. The terminal structure according to claim 7, characterized in that The first sealing portion (21) has a first state and a second state. In the first state, the first sealing segment (211) and the first insulating segment (212) are spaced apart. In the second state, the first sealing segment (211) and the first insulating segment (212) abut against each other. The first sealing portion (21) is configured to press against the first sealing segment (211) and / or the first insulating segment (212) through the first protrusion (4) to switch from the first state to the second state.

9. The terminal structure according to claim 7, characterized by The distance between the first connecting part (12) and the cover plate (3) is C1, and the protrusion height of the first protrusion (4) is C2, satisfying: 0.03 mm ≤ C2 ≤ 60% C1.

10. The terminal structure according to claim 7, characterized by The first protrusion (4) abuts against the first sealing section (211). Along the first direction, the width of the overlapping portion of the projections of the first sealing section (211), the cover plate (3), and the first connecting part (12) is C3, and the width of the first protrusion (4) is C4, satisfying: 1%C3≤C4≤80%C3.

11. The terminal structure according to claim 7, characterized by The first protrusion (4) abuts against the first sealing section (211). Along the first direction, the width of the overlapping portion of the projections of the first sealing section (211), the cover plate (3), and the first connecting part (12) is C3. Along the second direction, the distance between the first insulating section (212) and the first protrusion (4) is C5, satisfying: 1%C3≤C5≤50%C3, wherein the first direction and the second direction are set at an angle.

12. The terminal structure according to claim 7, characterized by The first protrusion (4) abuts against the first insulating section (212). Along the first direction, the width of the overlapping portion of the projection of the first insulating section (212), the cover plate (3) and the first connecting part (12) is C6, and the width of the first protrusion (4) is C4, satisfying: 1%C6≤C4≤80%C6.

13. The terminal structure according to claim 7, characterized by The first protrusion (4) abuts against the first insulating section (212). Along the first direction, the width of the overlapping portion of the projections of the first insulating section (212), the cover plate (3), and the first connecting part (12) is C6. Along the second direction, the distance between the first sealing section (211) and the first protrusion (4) is C7, satisfying: 1%C6≤C7≤50%C6, wherein the first direction and the second direction are set at an angle.

14. The terminal structure according to claim 6, characterized by The second sealing part (22) includes: The second sealing section (221) is fitted around the periphery of the main body (11); The second insulating section (222) is arranged around the second sealing section (221); The second protrusion (5) abuts against the second sealing section (221), and / or the second protrusion (5) abuts against the second insulating section (222).

15. The terminal structure according to claim 14, characterized in that The second sealing portion (22) has a third state and a fourth state. In the third state, the second sealing segment (221) and the second insulating segment (222) are spaced apart. In the fourth state, the second sealing segment (221) and the second insulating segment (222) abut against each other. The second sealing portion (22) is configured to press against the second sealing segment (221) and / or the second insulating segment (222) by the second protrusion (5) to switch from the third state to the fourth state.

16. The terminal structure of claim 14, wherein The distance between the second connecting part (13) and the cover plate (3) is D1, and the protrusion height of the second protrusion (5) is D2, satisfying: 0.03 mm ≤ D2 ≤ 60% D1.

17. The terminal structure of claim 14, wherein The second protrusion (5) abuts against the second sealing section (221). Along the first direction, the width of the overlapping portion of the projections of the second sealing section (221), the cover plate (3), and the second connecting part (13) is D3, and the width of the second protrusion (5) is D4, satisfying: 1%D3≤D4≤80%D3.

18. The terminal structure of claim 14, wherein The second protrusion (5) abuts against the second sealing section (221). Along the first direction, the width of the overlapping portion of the projections of the second sealing section (221), the cover plate (3), and the second connecting part (13) is D3. Along the second direction, the distance between the second insulating section (222) and the second protrusion (5) is D5, satisfying: 1%D3≤D5≤50%D3, wherein the first direction and the second direction are set at an angle.

19. The terminal structure of claim 14, wherein The second protrusion (5) abuts against the second insulating section (222). Along the first direction, the width of the overlapping portion of the projection of the second insulating section (222), the cover plate (3) and the second connecting part (13) is D6, and the width of the first protrusion (4) is D4, satisfying: 1%D6≤D4≤80%D6.

20. The terminal structure of claim 14, wherein The second protrusion (5) abuts against the second insulating section (222). Along the first direction, the width of the overlapping portion of the projections of the second insulating section (222), the cover plate (3), and the second connecting part (13) is D6. Along the second direction, the distance between the second sealing section (221) and the second protrusion (5) is D7, satisfying: 1%D6≤D7≤50%D6, wherein the first direction and the second direction are set at an angle.

21. The terminal structure according to claim 5, characterized by The first sealing part (21) has a first flange (213) protruding towards the first connecting part (12) at one end away from the third sealing part (23), and the first flange (213) is sleeved on the first connecting part (12); and / or The second sealing part (22) has a second flange (223) protruding towards the second connecting part (13) at one end away from the third sealing part (23), and the second flange (223) is sleeved on the second connecting part (13).

22. The terminal structure according to any one of claims 1 to 4, characterized in that The main body (11) includes: The pole post (111) has the first connecting part (12) arranged around the periphery of the pole post (111); A pressure ring (112) is sleeved on the pole post (111), and the second connecting part (13) is arranged around the periphery of the pressure ring (112). The pole post (111), the pressure ring (112), the first connecting part (12) and the second connecting part (13) surround to form an installation groove (113), and the sealing element (2) is disposed in the installation groove (113).

23. A cap assembly characterized by, Includes the terminal structure as described in any one of claims 1-22.

24. A housing assembly characterized by, Includes the terminal structure as described in any one of claims 1-22.

25. A monobloc cell characterized in that, It includes the terminal structure as described in any one of claims 1-22, or the top cover assembly as described in claim 23, or the housing assembly as described in claim 24.

26. A battery pack, characterized by Including the single-cell battery as described in claim 25.

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