Connection terminal

Abstract

The present disclosure provides a connection terminal comprising a metal member and a housing at least partially surrounding the metal member, the housing comprising: a first body made of a first resin material, the first resin material being a light-transmitting material such that a user can observe at least part of the metal member through the first body; a second body made of a second resin material; wherein the first resin material is different from the second resin material, and the first body and the second body are combined into a whole. Compared with a shell made of a single resin material, the shell of the connecting terminal is more flexible in material selection, the product cost is reduced under the condition that the terminal use requirement is met, and in addition, the performance of the terminal in other aspects (such as flame retardance) can be improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of electrical connection, and in particular to a connection terminal. Background Art

[0002] Ultra-Fast is a series of cold-pressed terminals. The ultra-fast terminals are connected to the cables and the mating connectors respectively, thereby realizing electrical transmission between them. The ultra-fast terminals include metal parts and an insulating shell made of a single resin material. The resin material has a certain degree of transparency so that the user can observe the connection between the internal metal parts and the cables. In addition, the terminal will cause plastic deformation of the shell during use, so the resin material must also have high toughness to avoid the shell from breaking during use. Obviously, the range of choices for this resin material is very limited. The shell made of a single resin material is expensive, and its performance in other aspects (such as flame retardancy) is not satisfactory. Summary of the invention

[0003] In order to solve the above problems and defects, the present disclosure provides a connection terminal. The housing of the connection terminal is different from the housing made of a single resin material in the prior art, and the manufacturer can more flexibly select materials to manufacture the housing, and the manufacturing cost is lower.

[0004] Based on this, according to one embodiment of the present disclosure, a connecting terminal is provided, comprising: a metal part; and a shell, the shell at least partially surrounding the metal part, the shell comprising: a first body, the first body is composed of a first resin material, the first resin material is a light-transmitting material, so that a user can observe at least part of the metal part through the first body; and a second body, the second body is composed of a second resin material; wherein the first resin material is different from the second resin material, and the first body and the second body are combined into one.

[0005] The shell of the connecting terminal in the above-mentioned embodiment is composed of a first resin material and a second resin material, wherein the first resin material has transparency, which can meet the need for visualization of the connecting part of the terminal. The second resin material has high toughness, which can prevent the shell from breaking during the use of the terminal. Compared with a shell composed of a single resin material, the shell of the connecting terminal proposed in the present disclosure is more flexible in material selection, and reduces product cost while meeting the terminal use requirements. In addition, it can also improve the performance of the terminal in other aspects (such as flame retardancy).

[0006] In one embodiment, the first body is adjacent to a connection portion of the metal component, so that a user can observe a connection status of the metal component through the first body.

[0007] In one embodiment, the second resin material has higher toughness than the first resin material.

[0008] In one embodiment, the first resin material is a first PC material, and the second resin material is a second PC material.

[0009] In one embodiment, the first resin material is a first PA material, and the second resin material is a second PA material.

[0010] In one embodiment, the shell also includes a third body, which is integrally formed with the first body and the second body, and is made of a colored third PC material for identifying the connecting terminal, and the third PC material is different from the first PC material or the second PC material.

[0011] In one embodiment, the shell also includes a third body, which is integrally formed with the first body and the second body, and the third body is made of a colored third PA material for identifying the connecting terminal, and the third PA material is different from the first PA material or the second PA material.

[0012] In one embodiment, a connecting portion with a concave-convex structure is formed between the first body and the second body.

[0013] In one embodiment, a step-structured joint is formed between the first body and the second body.

[0014] In one embodiment, one of the first body and the second body is located at an upper portion of the shell, the other of the first body and the second body is located at a lower portion of the shell, and the first body is arranged opposite to the second body.

[0015] In one embodiment, the second body includes an aperture disposed thereon, and the first body is adapted to mate with the aperture of the second body.

[0016] According to another embodiment of the present disclosure, a shell for a connecting terminal is also provided, comprising: a first body, the first body is composed of a first light-transmitting material; and a second body, the second body is composed of a second non-light-transmitting material; wherein the first body and the second body are combined into one.

[0017] In one embodiment, a connecting portion with a concave-convex structure is formed between the first body and the second body.

[0018] In one embodiment, a step-structured joint is formed between the first body and the second body.

[0019] In one embodiment, the first body is located at an upper portion of the shell, the second body is located at a lower portion of the shell, and the first body and the second body are arranged opposite to each other.

[0020] In one embodiment, the second body includes an aperture disposed thereon, and the first body is adapted to mate with the aperture of the second body. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The features, advantages and other aspects of the embodiments of the present disclosure will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings, in which several embodiments of the present disclosure are shown in an exemplary and non-limiting manner. In the accompanying drawings:

[0022] Figure 1 A schematic structural diagram of a connecting terminal according to a first embodiment of the present disclosure is shown.

[0023] Figure 2 A schematic structural diagram of a connecting terminal according to a first embodiment of the present disclosure is shown.

[0024] Figure 3 A schematic structural diagram of a first body and a second body before heat fusion according to a first embodiment of the present disclosure is shown.

[0025] Figure 4 A schematic structural diagram of a connecting terminal according to a second embodiment of the present disclosure is shown.

[0026] Figure 5 A schematic structural diagram of a connecting terminal according to a second embodiment of the present disclosure is shown.

[0027] Figure 6 A schematic structural diagram of a first body and a second body before heat fusion according to a second embodiment of the present disclosure is shown.

[0028] Figure 7 A schematic structural diagram of a connecting terminal according to a third embodiment of the present disclosure is shown.

[0029] Figure 8 A schematic structural diagram of a connecting terminal according to a third embodiment of the present disclosure is shown.

[0030] Fig. 9 A schematic structural diagram of a first body and a second body before heat fusion according to a third embodiment of the present disclosure is shown.

[0031] Fig.10 A schematic structural diagram of a connecting terminal according to a fourth embodiment of the present disclosure is shown.

[0032] Fig.11 A schematic structural diagram of a connecting terminal according to a fourth embodiment of the present disclosure is shown.

[0033] Fig.12 A schematic structural diagram of a first body and a second body before heat fusion according to a fourth embodiment of the present disclosure is shown. DETAILED DESCRIPTION

[0034] In the following specific description of the preferred embodiments, reference will be made to the attached drawings that constitute a part of the present disclosure. The attached drawings show, by way of example, specific embodiments that can implement the present disclosure. The exemplary embodiments are not intended to be exhaustive of all embodiments according to the present disclosure. In the specification, the same or similar reference numerals indicate the same or similar parts. It will be understood that other embodiments may be utilized and structural modifications may be made without departing from the scope of the present disclosure. Therefore, the following specific description is not restrictive, and the scope of the present disclosure is defined by the attached claims.

[0035] The terms "include", "comprising" and similar terms used herein should be understood as open terms, i.e., "including but not limited to", indicating that other contents may also be included. The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one other embodiment", etc.

[0036] The present disclosure provides a connection terminal, comprising: a metal part; and a shell, the shell at least partially surrounding the metal part, the shell comprising: a first body, the first body is made of a first resin material, the first resin material is a light-transmitting material, so that the user can observe at least part of the metal part through the first body; a second body, the second body is made of a second resin material; wherein the first resin material is different from the second resin material, and the first body and the second body are combined into one. The shell of the connection terminal is made of a first resin material and a second resin material, wherein the first resin material has transparency, which can meet the demand for visualization of the connection part of the terminal. The second resin material has high toughness, which can prevent the shell from breaking during the use of the terminal. Compared with a shell made of a single resin material, the shell of the connection terminal proposed in the present disclosure is more flexible in material selection, and reduces product cost while meeting the terminal use requirements, and can also improve the performance of the terminal in other aspects (such as flame retardancy).

[0037] The implementation and use of the embodiments are discussed in detail below. However, it should be understood that the specific embodiments discussed are merely exemplary of specific ways to implement and use the present disclosure, and are not intended to limit the scope of the present disclosure. The expressions such as above, etc., used when describing the various components are not absolute, but relative. These expressions are appropriate when the various components are arranged as shown in the figure, but when the positions of the various components in the figure change, these expressions also change accordingly.

[0038] First embodiment

[0039] Figure 1 and Figure 2 A schematic diagram of the structure of a connecting terminal according to a first embodiment of the present disclosure is shown. The connecting terminal 10 includes a shell 11 and a metal member 12, and the shell 11 at least partially surrounds the metal member 12. The shell 11 includes a first body 110 and a second body 111, and the first body 110 and the second body 111 are combined into one. The first body 110 is made of a first resin material, and the second body 111 is made of a second resin material, and the first resin material is different from the second resin material. The first resin material is a light-transmitting material, such as a transparent or translucent material, so that the user can observe at least part of the metal member 12 through the first body 110. Specifically, the metal member 12 of the connecting terminal 10 includes a first end 121 and a second end 122. The first end 121 of the metal member 12 is used to achieve electrical connection with a mating connector by plugging. The second end 122 of the metal member 12 is a circular opening. After the insulation of the cable is removed, the exposed metal wire core is crimped and enters the circular opening, thereby achieving electrical connection with the second end 122 of the metal member. As Figure 1 As shown, the light-transmissive first body 110 is adjacent to the connection part 123 of the metal member 12, so as to allow the user to observe the connection status of the metal member 12 through the first body 110, such as whether the cable is inserted in place and whether the second end 122 of the metal member 12 and the cable are well connected. In other examples, the connection part of the metal member can be used to connect another connector. In addition, the second resin material has higher toughness than the first resin material, for example, the second resin material has high toughness to prevent the terminal housing 11 from breaking during use. The second resin material can be a non-light-transmissive material.

[0040] In one example, the first resin material can be a first PC material with high transparency, such as PC (polycarbonate). The second resin material can be a transparent or opaque second PC material, such as PC / ABS (polycarbonate / acrylonitrile-butadiene-styrene copolymer), PC / PET (polycarbonate / polyethylene terephthalate copolymer), etc. Further, the housing 11 can also include a third body (not shown), which is integrated with the first body and the second body, and can be located at any appropriate position of the housing 11. The third body is composed of a colored third PC material, which is different from the first PC material or the second PC material, for example, a PC-based resin in red, yellow, blue, etc., to identify or distinguish the connection terminal 10.

[0041] In another example, the first resin material may be a first PA material with high transparency, such as PA (polyamide). The second resin material may be a transparent or opaque second PA material, such as PA6 (polyamide 6), PA66 (polyamide 66), PA66 / 6, etc. Further, the housing 11 may also include a third body (not shown), which is integrally formed with the first body and the second body, and may be located at any appropriate position of the housing 11. The third body is composed of a colored third PA material, which is different from the first PA material or the second PA material, and may be, for example, a PA-based resin in red, yellow, blue, or other colors to identify or distinguish the connection terminal 10.

[0042] The first resin material and the second resin material can be formed into the housing 11 by secondary injection molding. For example, the first resin material is injected into the first set of molds and cooled to form the housing 11. Figure 3 The first body 110 shown. The internal structure of the first set of molds makes the first body 110 after molding have a convex rib 112. Subsequently, the first body 110 is placed in the second set of molds and injected with the second resin material. After the heat fusion stage, the second body 111 and the first body 110 are fused into one. Finally, after cooling and demolding, the molded shell 11 can be obtained. Since the first body 110 has a convex rib 112 before heat fusion, a concave-convex structure joint will be formed between the first body 110 and the second body 111 after heat fusion, which increases the heat fusion bonding area between the first body 110 and the second body 111, and improves the bonding force between the first resin material and the second resin material.

[0043] In other examples, the first resin material and the second resin material can be formed into a shell by two-color injection molding. For example, a two-color injection molding machine is used to inject the first resin material and the second resin material into the mold simultaneously or successively, and after the resin material is cooled and formed, the shell can be obtained by demolding only once. If this molding method is adopted, there will be a regular or irregular cloud-like dividing line between the first body 110 and the second body 111. This molding method can also meet the need for visualization of the connection part 123 of the terminal 10, and also has higher production efficiency.

[0044] Reference Figure 1 After the injection molding process, the first body 110 is located at the upper part of the housing 11, and the second body 111 is located at the lower part of the housing 11. The first body 110 and the second body 111 are arranged opposite to each other. The user can see the internal metal part 12 by observing from the side where the first body 110 is located.

[0045] In the present embodiment, the shell 11 of the connecting terminal 10 is composed of a first resin material and a second resin material, wherein the first resin material has transparency, which can meet the need for visualization of the connecting portion 123 of the terminal 10. The second resin material has high toughness, for example, it can be a non-light-transmitting material with high toughness, which can prevent the shell 11 of the terminal 10 from breaking during use. Compared with the shell composed of a single resin material in the prior art, the shell 11 of the connecting terminal 10 proposed in the present disclosure is more flexible in the choice of materials, which reduces the product cost while meeting the use requirements of the terminal 10, and can also improve the performance of the terminal 10 in other aspects (such as flame retardancy). For example, the flame retardancy of the shell composed of a single nylon material in the prior art is generally UL94-V2, while the flame retardancy of the shell 11 composed of multiple nylon materials proposed in the present disclosure can reach UL94-V0, and its glow-wire test temperature does not ignite at 750°C.

[0046] Second embodiment

[0047] Figure 4 and Figure 5 The schematic diagram of the structure of the connection terminal according to the second embodiment of the present disclosure is shown. The connection terminal 20 includes a shell 21 and a metal piece 22, and the shell 21 at least partially surrounds the metal piece 22. The shell 21 includes a first body 210 and a second body 211, and the first body 210 and the second body 211 are integrally formed. The first body 210 is made of a first resin material, and the second body 211 is made of a second resin material, and the first resin material is different from the second resin material. The first resin material is a light-transmitting material, so that the user can observe at least part of the metal piece 22 through the first body 210. Figure 4 As shown, the light-transmissive first body 210 is adjacent to the connecting portion 223 of the metal member 22 , so as to allow a user to observe the connecting status of the metal member 22 through the first body 210 .

[0048] The first resin material and the second resin material can be formed into the housing 21 by secondary injection molding. For example, the second resin material is injected into the first set of molds and cooled to form a housing 21. Figure 6 The second body 211 shown. The internal structure of the first set of molds makes the second body 211 after molding have a convex rib 212. Subsequently, the second body 211 is placed in the second set of molds and injected with the first resin material. After the heat fusion stage, the first body 210 and the second body 211 are fused into one. Finally, after cooling and demolding, the molded shell 21 can be obtained. Since the second body 211 has a convex rib 212 before heat fusion, a concave-convex structure joint will be formed between the first body 210 and the second body 211 after heat fusion, which increases the heat fusion bonding area between the first body 210 and the second body 211, and improves the bonding force between the first resin material and the second resin material.

[0049] Reference Figure 4 After the injection molding process, the first body 210 is located at the upper part of the housing 21, and the second body 211 is located at the lower part of the housing 11. The first body 210 and the second body 211 are arranged opposite to each other. The user can see the internal metal part 22 by observing from the side where the first body 210 is located.

[0050] Third embodiment

[0051] Figure 7 and Figure 8 The schematic diagram of the structure of the connection terminal according to the third embodiment of the present disclosure is shown. The connection terminal 30 includes a shell 31 and a metal part 32. The shell 31 includes a first body 310 and a second body 311, and the first body 310 and the second body 311 are combined into one. The first body 310 is made of a first resin material, and the second body 311 is made of a second resin material, and the first resin material is different from the second resin material. The first resin material is a light-transmitting material, so that the user can observe at least part of the metal part 32 through the first body 310. Figure 7 As shown, the light-transmissive first body 310 is adjacent to the connecting portion 323 of the metal member 32 , so as to allow a user to observe the connecting status of the metal member 32 through the first body 310 .

[0052] The first resin material and the second resin material can be formed into the housing 31 by secondary injection molding. For example, the second resin material is injected into the first set of molds and cooled to form a housing 31. Fig. 9 The second body 311 shown. The internal structure of the first set of molds makes the second body 311 after molding have a stepped orifice 313. Subsequently, the second body 311 is placed in the second set of molds and injected with the first resin material. After the heat fusion stage, the first body 310 and the second body 311 are fused into one. Finally, after cooling and demolding, the molded shell 31 can be obtained. Since the second body 311 has a stepped orifice 313 before heat fusion, a stepped structure joint will be formed between the first body 310 and the second body 311 after heat fusion, which increases the heat fusion bonding area between the first body 310 and the second body 311, and improves the bonding force between the first resin material and the second resin material.

[0053] Reference Figure 7 and Fig. 9 The second body 311 includes an orifice 313 disposed thereon, and after the injection molding process, the first body 310 is adapted to the orifice 313 of the second body 311, and the second body 311 surrounds the first body 310. The user can see the connection status of the internal metal part 32 by observing from the side where the first body 310 is located.

[0054] Fourth embodiment

[0055] Fig.10 and Fig.11 The schematic diagram of the structure of the connection terminal according to the fourth embodiment of the present disclosure is shown. The connection terminal 40 includes a shell 41 and a metal part 42. The shell 41 includes a first body 410 and a second body 411, and the first body 410 and the second body 411 are combined into one. The first body 410 is made of a first resin material, and the second body 411 is made of a second resin material, and the first resin material is different from the second resin material. The first resin material is a light-transmitting material, so that the user can observe at least part of the metal part through the first body 410. Fig.10 As shown, the light-transmissive first body 410 is adjacent to the connecting portion 423 of the metal member 42 , so as to allow a user to observe the connecting status of the metal member 42 through the first body 410 .

[0056] The first resin material and the second resin material can be formed into the housing 41 by secondary injection molding. For example, the second resin material is injected into the first set of molds and cooled to form the housing 41. Fig.12 The second body 411 is shown. The internal structure of the first set of molds makes the second body 411 after molding have an orifice 414, and the orifice 414 includes a plurality of groove structures 415 arranged thereon. Subsequently, the second body 411 is placed in the second set of molds and injected with the first resin material. After the heat fusion stage, the first body 410 and the second body 411 are fused into one. Finally, after cooling and demolding, the molded shell 41 can be obtained. Since there are a plurality of groove structures 415 in the second body 411 before heat fusion, a concave-convex structure joint will be formed between the first body 410 and the second body 411 after heat fusion, which increases the heat fusion bonding area between the first body 410 and the second body 411, and improves the bonding force between the first resin material and the second resin material.

[0057] Reference Fig.10 and Fig.12 The second body 411 includes an orifice 414 disposed thereon. After the injection molding process, the first body 410 is adapted to the orifice 414 of the second body 411, and the second body 411 surrounds the first body 410. The user can see the connection status of the internal metal part 42 by observing from the side where the first body 410 is located.

[0058] It can be seen from the above embodiments that the position of the first body in the housing and the shape of the first body can be varied, as long as they can meet the need for visualization of the connection part of the terminal. And the connection part of the terminal is not limited to the connection between the terminal and the cable, but may also be the connection between the terminal and the mating terminal. In addition, the metal parts of the connecting terminals are not limited to the metal parts provided in the above embodiments, but may also be other types of metal parts.

[0059] In addition, the present disclosure also provides a shell for connecting terminals, the shell comprising a first body and a second body, wherein the first body is composed of a light-transmitting first material, the second body is composed of a non-light-transmitting second material, and the first body and the second body are combined into one. Referring to the above-mentioned embodiment, a concave-convex structure joint portion may be formed between the first body and the second body, and a stepped structure joint portion may also be formed. In one of the above-mentioned embodiments, the first body is located in the upper part of the shell, the second body is located in the lower part of the shell, and the first body and the second body are arranged opposite to each other. In another of the above-mentioned embodiments, the second body includes an orifice arranged thereon, and the orifices of the first body and the second body are adapted to each other.

[0060] The above description is only an optional embodiment of the embodiment of the present disclosure, and is not intended to limit the embodiment of the present disclosure. For those skilled in the art, the embodiment of the present disclosure may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the embodiment of the present disclosure shall be included in the protection scope of the embodiment of the present disclosure.

[0061] Although the embodiments of the present disclosure have been described with reference to several specific embodiments, it should be understood that the embodiments of the present disclosure are not limited to the specific embodiments disclosed. The embodiments of the present disclosure are intended to cover various modifications and equivalent arrangements included in the spirit and scope of the appended claims. The scope of the appended claims is consistent with the broadest interpretation, thereby including all such modifications and equivalent structures and functions.

Claims

1. A connecting terminal, comprising: Metal parts; as well as A housing at least partially surrounding the metal member, the housing comprising: a first body, wherein the first body is made of a first resin material, and the first resin material is a light-transmitting material, so that a user can observe at least a portion of the metal member through the first body; and a second body, the second body being made of a second resin material; The first resin material is different from the second resin material, and the first body and the second body are combined into one body.

2. The connecting terminal according to claim 1, wherein: The first body is adjacent to the connection portion of the metal component, so that a user can observe the connection status of the metal component through the first body.

3. The connection terminal according to claim 1, wherein: The second resin material has higher toughness than the first resin material.

4. The connecting terminal according to claim 3, wherein: The first resin material is a first PC material, and the second resin material is a second PC material.

5. The connection terminal according to claim 3, wherein: The first resin material is a first PA material, and the second resin material is a second PA material.

6. The connecting terminal according to claim 4, the shell also includes a third body, the third body is integrated with the first body and the second body, the third body is made of a colored third PC material for identifying the connecting terminal, and the third PC material is different from the first PC material or the second PC material.

7. The connection terminal according to claim 5, wherein: The shell also includes a third body, which is integrated with the first body and the second body. The third body is made of a colored third PA material for marking the connection terminal. The third PA material is different from the first PA material or the second PA material.

8. The connecting terminal according to claim 1, wherein: A connecting portion with a concave-convex structure is formed between the first body and the second body.

9. The connection terminal according to claim 1, wherein: A step-structured joint is formed between the first body and the second body.

10. The connection terminal according to claim 1, wherein: The first body is located at the upper part of the shell, the second body is located at the lower part of the shell, and the first body and the second body are arranged opposite to each other.

11. The connection terminal according to claim 1, wherein: The second body includes an aperture disposed thereon, and the first body is adapted to fit into the aperture of the second body.

12. A housing for a connecting terminal, comprising: A first body, wherein the first body is made of a first light-transmissive material; as well as A second body, the second body being made of a second non-light-transmissive material; Wherein, the first body and the second body are combined into one.

13. The housing according to claim 12, wherein: A connecting portion with a concave-convex structure is formed between the first body and the second body.

14. The housing according to claim 12, wherein: A step-structured joint is formed between the first body and the second body.

15. The housing according to claim 12, wherein: The first body is located at the upper part of the shell, the second body is located at the lower part of the shell, and the first body and the second body are arranged opposite to each other.

16. The housing according to claim 12, wherein: The second body includes an aperture disposed thereon, and the first body is adapted to fit into the aperture of the second body.

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