Connection terminals

Abstract

The present invention discloses a connection terminal, comprising: a conductor having a guide hole, the guide hole having a first inner wall surface and a first outer wall surface; a first sealing body having a first receiving hole, the first receiving hole having a second inner wall surface and a third inner wall surface, the second inner wall surface abutting the first inner wall surface, and the third inner wall surface abutting the first outer wall surface; and a second sealing body having a second receiving hole, the second receiving hole having a fourth inner wall surface and a fifth inner wall surface, the fourth inner wall surface abutting the first inner wall surface, and the fifth inner wall surface abutting both the first outer wall surface and the second outer wall surface of the first sealing body. The second and fourth inner wall surfaces are arranged in abutment with the first inner wall surface, and the third and fifth inner wall surfaces are arranged in abutment with the first outer wall surface, thereby improving the sealing between the two ends of the guide hole. Even if the temperature of the conductor increases during use, the cooperation of the first and second sealing bodies can still block the connection between the two ends of the guide hole, thereby ensuring the waterproof performance of the connection terminal.

Description

Technical Field

[0001] The present invention relates to the technical field of connectors, and in particular to a connecting terminal. Background Art

[0002] The waterproofing of connection terminals is a critical performance feature. Inadequate waterproofing not only significantly shortens the lifespan of charging products but can also cause fires due to water intrusion and short circuits, posing a significant safety hazard. Existing connection terminals primarily rely on plastic plugs for waterproofing, but the connection terminals themselves are made of metal. During charging, heat is generated, causing the temperature to rise. This creates a gap between the metal and plastic materials due to their different expansion rates, allowing external liquids to easily flow in and damage the charging product. Summary of the Invention

[0003] In view of the deficiencies in the prior art, the present invention provides a connecting terminal.

[0004] The present invention discloses a connecting terminal, comprising:

[0005] A conductor having a guide hole, wherein the guide hole has a first inner wall surface and a first outer wall surface;

[0006] A first sealing body is provided on the conductor, the first sealing body having a first accommodating hole, the first accommodating hole having a second inner wall surface and a third inner wall surface, the second inner wall surface abuts against the first inner wall surface, and the third inner wall surface abuts against the first outer wall surface;

[0007] A second sealing body is provided on the conductor, the second sealing body and the first sealing body are arranged in parallel along the direction of opening of the guide hole; the second sealing body has a second receiving hole, the second receiving hole has a fourth inner wall surface and a fifth inner wall surface, the fourth inner wall surface abuts the first inner wall surface, and the fifth inner wall surface abuts the first outer wall surface and the second outer wall surface of the first sealing body at the same time;

[0008] The first sealing body and the second sealing body block the communication between the two ends of the guide hole.

[0009] According to one embodiment of the present invention, the conductor is provided with a thermal conductive block protruding from the first outer wall surface, the first sealing body further has a position-avoiding hole communicating with the outside, and the thermal conductive block is arranged in the position-avoiding hole.

[0010] According to one embodiment of the present invention, a support ring is further provided on the outer surface of the first sealing body.

[0011] According to one embodiment of the present invention, an anti-fouling block is further provided on the outer surface of the first sealing body.

[0012] According to one embodiment of the present invention, the first sealing body is made of plastic material, and the second sealing body is made of silicone material.

[0013] According to one embodiment of the present invention, a plurality of elastic strips are provided at one end of the conductor, and the plurality of elastic strips are distributed around the guide hole.

[0014] According to one embodiment of the present invention, the device further comprises a sleeve body sleeved on the outer surface of the conductor, wherein the sleeve body has a receiving hole, and the conductor is located in the receiving hole.

[0015] According to one embodiment of the present invention, the end of the sleeve is further provided with a plurality of limiting hooks distributed around the accommodating hole, and the plurality of limiting hooks respectively abut against the plurality of elastic strips.

[0016] According to one embodiment of the present invention, the sleeve body is further provided with a plurality of support strips protruding toward the accommodating hole, and the plurality of support strips respectively abut against the plurality of elastic strips.

[0017] According to one embodiment of the present invention, the device further comprises an elastic body, which is wound around the outer surfaces of the plurality of elastic strips.

[0018] The beneficial effect of the present invention is that: by fitting the second inner wall surface, the fourth inner wall surface and the first inner wall surface, and fitting the third inner wall surface, the fifth inner wall surface and the first outer wall surface, the sealing between the two ends of the guide hole is improved. Even if the temperature of the conductor increases when in use, the cooperation of the first sealing body and the second sealing body can still block the connection between the two ends of the guide hole, thereby ensuring the waterproof performance of the connection terminal. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0020] Figure 1 is a schematic diagram of the three-dimensional structure of the connection terminal;

[0021] Figure 2 is another schematic diagram of the three-dimensional structure of the connecting terminal;

[0022] Figure 3 is a cross-sectional schematic diagram of the connection terminal;

[0023] Figure 4 is a schematic diagram of the three-dimensional structure of the conductor;

[0024] Figure 5 is a schematic diagram of the three-dimensional structure of the first sealing body;

[0025] Figure 6 is another schematic diagram of the three-dimensional structure of the first sealing body;

[0026] Figure 7 is a schematic diagram of the three-dimensional structure of the second sealing body;

[0027] Figure 8 is another schematic diagram of the three-dimensional structure of the second sealing body;

[0028] Figure 9 Schematic diagram of the three-dimensional structure of the sleeve;

[0029] Figure 10 It is another three-dimensional structural diagram of the connecting terminal.

[0030] Description of Reference Numerals

[0031] 1. Conductor; 11. Guide hole; 111. First inner wall surface; 112. First outer wall surface; 12. Thermal conductive block; 13. Elastic strip;

[0032] 2. First sealing body; 21. First receiving hole; 211. Second inner wall surface; 212. Third inner wall surface; 22. Second outer wall surface; 23. Avoidance hole; 24. Support ring; 25. Anti-fouling block;

[0033] 3. Second sealing body; 31. Second receiving hole; 311. Fourth inner wall surface; 312. Fifth inner wall surface;

[0034] 4. Housing; 41. Accommodation hole; 42. Limit hook; 43. Support bar;

[0035] 5. Elastomer. DETAILED DESCRIPTION

[0036] The following diagrams illustrate various embodiments of the present invention. For clarity, many practical details are included in the following description. However, it should be understood that these practical details are not intended to limit the present invention. In other words, in some embodiments of the present invention, these practical details are not essential. Furthermore, to simplify the drawings, some commonly used structures and components are depicted in simplified schematic form.

[0037] In addition, in the present invention, descriptions such as "first" and "second" are only used for descriptive purposes and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0038] like Figure 1-Figure 3 As shown, Figure 1is a schematic diagram of the three-dimensional structure of the connection terminal; Figure 2 is another schematic diagram of the three-dimensional structure of the connecting terminal; Figure 3 The connecting terminal comprises a conductor 1, a first sealing body 2 and a second sealing body 3, which are arranged side by side on the conductor 1. The arrangement of the first sealing body 2 and the second sealing body 3 achieves a sealing effect on the conductor 1.

[0039] Refer to it again Figure 4 As shown, Figure 4 It is a schematic diagram of the three-dimensional structure of the conductor 1. The conductor 1 has a guide hole 11. Along the direction in which the guide hole 11 is opened, the first seal 2 and the second seal 3 are distributed side by side. Through the arrangement of the first seal 2 and the second seal 3, the two ends of the guide hole 11 cannot be connected. When in use, the external pin is inserted into the guide hole 11, and the end of the conductor 1 away from the external pin is connected to the wiring harness for conduction. In this embodiment, the guide hole 11 is opened along the length direction of the conductor 1; wherein, part of the guide hole 11 area is a semi-open structure, that is, a longitudinal section is generated along a direction perpendicular to the length direction of the conductor 1, and the longitudinal section of one end of the guide hole 11 is circular, and the longitudinal section of the other end of the guide hole 11 is semicircular. The first seal 2 and the second seal 3 are both arranged in the area of ​​the semi-open structure.

[0040] The guide hole 11 has a first inner wall surface 111 located inside and a first outer wall surface 112 located outside. The first sealing body 2 and the second sealing body 3 are in contact with the first inner wall surface 111 and the first outer wall surface 112 at the same time to achieve a sealing effect between the inside of the guide hole 11 and the outside of the conductor 1.

[0041] In a specific application, one end of conductor 1 is provided with multiple elastic strips 13, which are distributed around the end of guide hole 11. This means that guide hole 11 has a circular longitudinal cross-section, and the elastic strips 13 surround its center, forming a circular structure. Specifically, the elastic strips 13 can expand outward relative to conductor 1. When an external pin is inserted, the pin contacts the elastic strips 13, causing the elastic strips 13 to expand outward away from the end of conductor 1, facilitating further insertion of the external pin.

[0042] Refer to it again Figure 5 and Figure 6 As shown, Figure 5 is a schematic diagram of the three-dimensional structure of the first sealing body 2; Figure 6FIG2 is another schematic diagram of the three-dimensional structure of the first sealing body 2. The first sealing body 2 has a first receiving hole 21, through which the conductor 1 passes. The first receiving hole 21 has a second inner wall surface 211 and a third inner wall surface 212. The second inner wall surface 211 abuts the first inner wall surface 111 of the guide hole 11, and the third inner wall surface 212 abuts the first outer wall surface 112 of the guide hole 11. In this way, the first sealing body 2 can seal the interior of the guide hole 11 to prevent external liquid from flowing in through the guide hole 11. At the same time, the first sealing body 2 also seals the outer surface of the conductor 1 to prevent external liquid from flowing in through the surface of the conductor 1.

[0043] Furthermore, a avoidance hole 23 is provided on the outer surface of the first sealing body 2, and the avoidance hole 23 is communicated with the outside. The outer surface of the conductor 1 is provided with a thermal conductive block 12 protruding from the first outer wall surface 112. The thermal conductive block 12 is located in the avoidance hole 23, and the thermal conductive block 12 is exposed to the outside. When in use, an external temperature sensing device can obtain the temperature information of the current connection terminal by measuring the temperature of the thermal conductive block 12. Since the thermal conductive block 12 and the conductor 1 are an integrated structure, the intermediate conduction process is reduced, so the measured temperature will be more accurate.

[0044] Furthermore, the outer surface of the first sealing body 2 is provided with a support ring 24. During use, to prevent the connecting terminal from receding when the external pin is inserted, a supporting structure is required to support the connecting terminal. This supporting structure abuts against the support ring 24. It should be noted that the supporting structure is an existing structure and only needs to limit the position of the connecting terminal. In this embodiment, the avoidance hole 23 is provided on the support ring 24.

[0045] In order to improve the assembly efficiency and accuracy of the connecting terminal, the first sealing body 2 is further provided with an anti-fool block 25. The anti-fool block 25 is adapted to the structure of the remaining components, which is conducive to the rapid and accurate completion of the assembly of the connecting terminal in the later stage.

[0046] In a specific application, the first sealing body 2 further has a second outer wall surface 22 , which is exposed to the outside, and the second sealing body 3 abuts against the second outer wall surface 22 .

[0047] Refer to it again Figure 7 and Figure 8 As shown, Figure 7 Schematic diagram of the three-dimensional structure of the second sealing body 3; Figure 8FIG3 is another schematic diagram of the three-dimensional structure of the second sealing body 3. The second sealing body 3 has a second receiving hole 31, through which the conductor 1 passes. The second receiving hole 31 has a fourth inner wall surface 311 and a fifth inner wall surface 312. The fourth inner wall surface 311 abuts the first inner wall surface 111 of the guide hole 11, and the fifth inner wall surface 312 abuts the first outer wall surface 112 of the conductor 1. In this way, the second sealing body 3 can seal the interior of the guide hole 11 to prevent external liquid from flowing in through the guide hole 11. At the same time, the second sealing body 3 also seals the outer surface of the conductor 1 to prevent external liquid from flowing in through the surface of the conductor 1. In addition, in addition to abutting against the first outer wall surface 112 of the conductor 1, the fifth inner wall surface 312 also abuts against the second outer wall surface 22 of the first sealing body 2. That is to say, taking the circular longitudinal cross-section of the fifth inner wall surface 312 as an example, the semicircle abuts against the first outer wall surface 112 of the conductor 1, and the first outer wall surface 112 is also a semicircular structure. The other semicircle of the fifth inner wall surface 312 will abut against the second outer wall surface 22. In this way, the second sealing body 3 not only has a sealing effect on the conductor 1, but also this connection method will not increase the distance between the first sealing body 2 and the second sealing body 3. If the first sealing body 2 and the second sealing body 3 are set at intervals, the length of the entire connecting terminal will increase, thereby causing unnecessary cost increase.

[0048] Refer to it again Figure 9 As shown, Figure 9 It is a schematic diagram of the three-dimensional structure of the sleeve 4. The connecting terminal also includes a sleeve 4, which is sleeved on the outside of the conductor 1. The sleeve 4 has a receiving hole 41, and the conductor 1 is located in the receiving hole 41. Specifically, the sleeve 4 is only sleeved on a part of the conductor 1, and the first sealing body 2 and the second sealing body 3 are not in the receiving hole 41 of the sleeve 4. One end of the sleeve 4 is also provided with a plurality of limiting hooks 42, and the plurality of limiting hooks 42 are distributed around the receiving hole 41, and the limiting hooks 42 are bent toward the inside of the receiving hole 41. The plurality of limiting hooks 42 are respectively in contact with the plurality of elastic strips 13 on the conductor 1. Through the cooperation of the limiting hooks 42 and the elastic strips 13, the sleeve 4 can be connected to the conductor 1 and the two are not easily separated.

[0049] Furthermore, the sleeve 4 is provided with a plurality of support bars 43, which are distributed around the outer surface of the sleeve 4 and extend into the receiving hole 41. During use, the support bars 43 respectively abut against the elastic bars 13 to provide support for the elastic bars 13. When an external pin is inserted, the elastic bars 13 expand outward, and at the same time, the elastic bars 13 push the support bars 43 to expand outward. When the external pin is removed, the elastic bars 13 and the support bars 43 return to their original position.

[0050] Refer to it again Figure 10 As shown, Figure 10FIG2 is another schematic diagram of the three-dimensional structure of the connecting terminal. In another embodiment, the connecting terminal further comprises an elastic body 5. When in use, the support strip 43 on the sleeve 4 can be removed and replaced with the elastic body 5. The elastic body 5 is wound around the outer surface of the plurality of elastic strips 13 to support the plurality of elastic strips 13.

[0051] It should also be noted that, in this embodiment, the first sealing body 2 is made of plastic material and the second sealing body 3 is made of silicone material. In specific applications, the first sealing body 2 is first formed directly on the conductor 1 through an injection molding process and a mold to form a semi-finished product; similarly, the second sealing body 3 adopts the existing silicone production molding process and mold, so that the second sealing body 3 can be directly formed on the semi-finished product, and finally a product in which the conductor 1, the first sealing body 2 and the second sealing body 3 are connected is produced.

[0052] Since the first sealing body 2 needs to cooperate with the external support structure to limit the position during the use of the connecting terminal, the first sealing body 2 is made of a plastic material with a certain hardness; it is made of a highly conductive and high yield strength material. When the temperature of the connecting terminal rises during use, the conductor 1 and the first sealing body 2 expand to different degrees, and a gap is very likely to appear. At this time, since the second sealing body 3 is made of a silicone material with better deformation performance, when the conductor 1 is deformed due to temperature changes, the second sealing body 3 always maintains contact with the conductor 1, thereby preventing external liquid from flowing into the gap between the first sealing body 2 and the conductor 1.

[0053] In summary, by fitting the second inner wall surface 211, the fourth inner wall surface 311 and the first inner wall surface 111, and by fitting the third inner wall surface 212, the fifth inner wall surface 312 and the first outer wall surface 112, the sealing between the two ends of the guide hole 11 is improved. Even if the temperature of the conductor 1 increases when in use, the cooperation of the first sealing body 2 and the second sealing body 3 can still block the connection between the two ends of the guide hole 11, thereby ensuring the waterproof performance of the connecting terminal.

[0054] The foregoing is merely an embodiment of the present invention and is not intended to limit the present invention. It will be apparent to those skilled in the art that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention are intended to be included within the scope of the claims of the present invention.

Claims

1. A connecting terminal, characterized in that: include: A conductor (1) having a guide hole (11), wherein the guide hole (11) has a first inner wall surface (111) and a first outer wall surface (112); A first sealing body (2) is arranged on the conductor (1), the first sealing body (2) has a first accommodating hole (21), the first accommodating hole (21) has a second inner wall surface (211) and a third inner wall surface (212), the second inner wall surface (211) abuts against the first inner wall surface (111), and the third inner wall surface (212) abuts against the first outer wall surface (112); A second sealing body (3) is arranged on the conductor (1), and the second sealing body (3) and the first sealing body (2) are arranged in parallel along the opening direction of the guide hole (11); the second sealing body (3) has a second accommodating hole (31), and the second accommodating hole (31) has a fourth inner wall surface (311) and a fifth inner wall surface (312), the fourth inner wall surface (311) abuts against the first inner wall surface (111), and the fifth inner wall surface (312) simultaneously abuts against the first outer wall surface (112) and the second outer wall surface (22) of the first sealing body (2); The first sealing body (2) and the second sealing body (3) block the communication between the two ends of the guide hole (11).

2. The connecting terminal according to claim 1, wherein: The conductor (1) is provided with a heat conducting block (12) protruding from the first outer wall surface (112); the first sealing body (2) further has a position-avoiding hole (23) communicating with the outside; the heat conducting block (12) is arranged in the position-avoiding hole (23).

3. The connecting terminal according to claim 1, wherein: A support ring (24) is also provided on the outer surface of the first sealing body (2).

4. The connecting terminal according to claim 1, wherein: An anti-fouling block (25) is also provided on the outer surface of the first sealing body (2).

5. The connecting terminal according to claim 1, wherein: The first sealing body (2) is made of plastic material, and the second sealing body (3) is made of silicone material.

6. The connecting terminal according to any one of claims 1 to 5, characterized in that: One end of the conductor (1) is provided with a plurality of elastic strips (13), and the plurality of elastic strips (13) are distributed around the guide hole (11).

7. The connecting terminal according to claim 6, wherein: It also includes a sleeve (4) sleeved on the outer surface of the conductor (1), the sleeve (4) having a receiving hole (41), and the conductor (1) is located in the receiving hole (41).

8. The connecting terminal according to claim 7, wherein: The end of the sleeve (4) is further provided with a plurality of limiting hooks (42) distributed around the accommodating hole (41), and the plurality of limiting hooks (42) respectively abut against the plurality of elastic strips (13).

9. The connecting terminal according to claim 7, wherein: The sleeve body (4) is further provided with a plurality of support strips (43) protruding toward the accommodating hole (41), and the plurality of support strips (43) respectively abut against the plurality of elastic strips (13).

10. The connecting terminal according to claim 7 or 8, characterized in that: It also includes an elastic body (5), which is wound around the outer surfaces of the plurality of elastic strips (13).

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