Terminal assembly and card connector

Abstract

The invention discloses a terminal assembly and a card connector, and the terminal assembly comprises an insulating body which is provided with an upper surface and a lower surface; the plurality of terminal holes are formed in the insulating body in a penetrating manner; a plurality of conductive terminals, wherein each conductive terminal is provided with a fixed plate embedded in the insulating body, an elastic arm extending out of the insulating body from the fixed plate, and a butt joint part extending out of the lower surface of the insulating body from the fixed plate; at least part of the elastic arm protrudes upwards from the terminal hole to the position above the upper surface and can elastically deform in the vertical direction. The upper surface of the fixing plate is embedded between the upper surface and the lower surface of the insulating body; the lower surface of the fixing plate is flush with the lower surface of the insulating body. According to the terminal assembly, miniaturization design can be realized, and the structure is stable.

Description

Technical Field

[0001] The present application relates to a terminal assembly and a card connector. Background Art

[0002] SIM card (Subscriber Identification Module), also known as user identity card, smart card, GSM digital mobile phone must be installed with this card before it can be used. SIM card can store digital mobile phone customer information, encryption keys and user phone book, etc., which can be used for GSM network customer identity authentication and encrypt customer voice information during calls.

[0003] For related prior art, please refer to Chinese invention patent application CN111193123A, which discloses a terminal assembly, including an insulating body and a plurality of terminals, wherein the plurality of terminals are integrally fixed to the insulating body by injection molding, and each of the terminals includes a fixing portion buried in the insulating body, a connecting portion extending from the fixing portion out of the insulating body, and a docking portion, wherein the insulating body penetrates through the thickness direction to form a terminal hole, one end of the docking portion is integrally connected to the fixing portion and at least partially protrudes into the terminal hole, and the docking portion is in the shape of a long simply supported beam, and the docking portion protrudes out of the insulating body in the thickness direction of the insulating body at the middle position in the length direction, and the insulating body also forms a limiting portion, wherein the limiting portion is at least partially supported on the upper surface of the other end of the docking portion, and the lower surface of the other end of the docking portion is not supported, and the insulating body has the characteristics of miniaturization and thinness, and at the same time, the structure is simple, easy to manufacture and the overall structure is stable.

[0004] With the development of technology, SIM cards are becoming smaller and smaller, followed by the popularity of Micro SIM cards and Nano SIM cards. In conjunction with the slim body design of current smartphones, the card connectors used with SIM cards are also becoming thinner and thinner, so as to occupy as little space as possible inside the mobile phone, which is conducive to the lightweight design of the mobile phone. However, the terminal modules (card connectors) disclosed in the above-mentioned prior art can no longer meet the design and functional requirements.

[0005] Therefore, it is necessary to design a new terminal assembly and card connector to solve the above technical problems. Summary of the invention

[0006] The purpose of the present application is to provide a terminal assembly and a card connector, which can achieve a thinner design and can achieve more effective welding and fixation with a docking circuit board.

[0007] In order to achieve the above objectives, this application provides the following technical solutions:

[0008] A terminal assembly, comprising:

[0009] An insulating body is formed with an upper surface and a lower side surface;

[0010] A plurality of terminal holes are formed through the insulating body;

[0011] A plurality of conductive terminals, each of which is formed with a fixing plate embedded in the insulating body, an elastic arm extending from the fixing plate to the outside of the insulating body, and a docking portion extending from the fixing plate and exposed outside the lower surface of the insulating body;

[0012] At least a portion of the elastic arm protrudes upward from the terminal hole to above the upper surface and is capable of elastic deformation in the up-down direction;

[0013] The upper surface of the fixing plate is buried between the upper surface and the lower surface of the insulating body;

[0014] The lower surface of the fixing plate is flush with the lower surface of the insulating body.

[0015] Furthermore, the docking portion is formed by stamping the fixing plate downwardly in the up-down direction, and the lower surface of the docking portion protrudes downwardly and exceeds the lower surface of the insulating body.

[0016] Furthermore, the docking portion is in the shape of a fixed beam, both ends of the docking portion are respectively connected to the fixed plate as a whole, and through holes are respectively formed on both sides of the docking portion;

[0017] A clearance through hole is formed through the insulating body, and the docking portion is formed in the clearance through hole.

[0018] Furthermore, it also includes: an implantation portion, which is formed by the fixing plate being bent and extended upwardly, and the implantation portion is embedded and fixed in the insulating body.

[0019] Furthermore, it also includes: a fixing through hole, which is formed through the position where the implanting part is connected to the fixing plate, and the fixing through hole is filled with an insulating body.

[0020] Furthermore, each of the elastic arms is extended in the front-rear direction, one end of the elastic arm is integrally connected to the fixing plate, and the other end of the elastic arm is cantilevered;

[0021] At least one of the docking portions is formed at a position where the fixing plate is connected to one end of the elastic arm;

[0022] An anti-climbing tin hole is formed through the fixing plate, and the anti-climbing tin hole is located between one end where the elastic arm and the fixing plate are integrally connected and the corresponding docking portion along the front-back direction;

[0023] The anti-climbing tin hole is filled with an insulating body.

[0024] Furthermore, it also includes: a docking circuit board, wherein the lower side surface of each docking portion is attached to the upper surface of the docking circuit board and fixed by welding;

[0025] A gap is formed between the lower surface of the fixing plate and the upper surface of the docking circuit board;

[0026] A gap is formed between the lower surface of the insulating body and the upper surface of the docking circuit board.

[0027] Furthermore, each of the elastic arms is extended in the front-rear direction, one end of the elastic arm is integrally connected to the fixing plate, and the other end of the elastic arm is cantilevered;

[0028] An insulating stopper, integrally provided with the insulating body;

[0029] The upper surface of the insulating stopper is higher than the upper surface of the insulating body;

[0030] The other end of the elastic arm abuts upward against the lower surface of the insulating stop portion;

[0031] The lower surface of the other end of the elastic arm is higher than the lower surface of the insulating body.

[0032] In order to achieve the above purpose, the present application also discloses the following technical solutions:

[0033] A connector comprises a terminal assembly as described in any one of the above items.

[0034] Furthermore, the terminal assembly can be matched with a SIM card to contact and realize signal transmission.

[0035] Compared with the prior art, the beneficial effects of the present application are: a thinner design can be achieved and more effective welding and fixing with the docking circuit board can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a three-dimensional schematic diagram of the terminal assembly of the present application.

[0037] Figure 2 yes Figure 1 A three-dimensional schematic diagram of the middle terminal assembly viewed from another angle.

[0038] Figure 3 yes Figure 1 Exploded view of the terminal assembly.

[0039] Figure 4 yes Figure 1 Top view of the terminal assembly.

[0040] Figure 5 It is Figure 4Section view along line AA.

[0041] Figure 6 yes Figure 5 A magnified view of the structure within the dashed box. DETAILED DESCRIPTION

[0042] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0043] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "assembly", "connection", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] In the description of this application, it should be understood that the terms "include" and "have" and any variations thereof used herein are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products or apparatuses.

[0045] In addition, for the sake of accuracy of description, all directions involved in this application should be referred to as Figure 1 For reference, the direction of the X-axis is defined as the left-right direction; the direction of the Y-axis is defined as the up-down direction, where the positive direction of the Y-axis is upward; and the direction of the Z-axis is defined as the front-back direction.

[0046] See also Figure 1 and Figure 6 As shown, a terminal assembly disclosed in the present application includes: an insulating body 1 and a plurality of conductive terminals 2 fixed to the insulating body 1 by integral injection molding. The insulating body 1 is formed with an upper surface 101 and a lower side surface 102. The insulating body 1 is penetrated by a plurality of terminal holes 10 along the up-down direction, and the plurality of terminal holes 10 are arranged in two rows along the left-right direction, and three terminal holes are arranged in each row.

[0047] Furthermore, the conductive terminal 2 is formed by stamping a metal plate, and each conductive terminal 2 includes a corresponding fixing plate 21 embedded in the insulating body 1 and extending along a horizontal plane, an elastic arm 22 extending from the fixing plate 21 to the outside of the insulating body 1, and a docking portion 23 extending from the fixing plate 21 and exposed outside the lower surface 102 of the insulating body 1. Specifically, the elastic arm 22 is arched upward at the middle position in the front-to-back direction and protrudes above the upper surface 101 of the insulating body 1 to form a contact portion (not numbered), which is used to elastically dock with a docking module (such as an electronic card). The elastic arm 22 can be elastically deformed in the up-down direction;

[0048] Please refer to Figures 1 to 6 As shown, in the present application, in a preferred embodiment, the fixing plate 21 is embedded in the insulating body 1. Specifically, the upper surface 201 of the fixing plate 21 is embedded between the upper surface 101 and the lower surface 102 of the insulating body 1. The lower surface 202 of the fixing plate 21 is flush with the lower surface 102 of the insulating body 1. Such a design can minimize the overall thickness of the terminal assembly, which is conducive to the overall miniaturization design.

[0049] Furthermore, in a preferred embodiment of the present application, the docking portion 23 is formed by stamping and protruding downwardly from the fixing plate 21 in the up-down direction, and the lower surface of the docking portion 23 protrudes downward and exceeds the lower surface 102 of the insulating body 1. Overall, the docking portion 23 is in the shape of a convex bulge protruding downward. In some embodiments, the docking portion 23 can also be designed as a fixed beam, and the two ends of the docking portion 23 are respectively connected to the fixing plate 21 as a whole, and through holes 203 are formed on both sides of the docking portion 23, and the corresponding positions of the insulating body 1 (that is, the positions corresponding to the through holes 203 and the docking portion 23) are penetrated by a clearance through hole 103 in the up-down direction, and the docking portion 23 is formed in the clearance through hole 103. In the embodiment of the present application, two clearance through holes 103 are formed on both sides of the insulating body of the terminal assembly in the left-right direction. Such a design can make the terminal assembly and the docking circuit board more firmly and stably fixed.

[0050] Please refer to Figures 2 to 5As shown, in the embodiment of the present application, a local position of the fixing plate 21 is also bent and extended upward to form a plurality of implanting portions 211. When the conductive terminal 2 is integrally injection-molded with the insulating body 1, the implanting portion 211 is embedded and fixed in the insulating body 1, thereby strengthening the fixation between the conductive terminal 2 and the insulating body 1. Furthermore, in a preferred embodiment, a fixing through hole 2110 is formed through the position where the implanting portion 211 is connected to the fixing plate 21, and the fixing through hole 2110 is filled with the insulating body 1, so as to further strengthen the fixation between the conductive terminal 2 and the insulating body 1. Of course, for better effect, half of the fixing through hole 2110 is formed on the implanting portion 211, and the other half is formed on the fixing plate 21.

[0051] Please refer to Figures 1 to 5 As shown, in a preferred embodiment of the present application, each of the elastic arms 22 is formed by extending in the front-to-back direction, one end of the elastic arm 22 is integrally connected to the fixed plate 21, and the other end of the elastic arm 22 is cantilevered. Among them, at least one docking portion 23 is formed at the position where the fixed plate 21 is connected to one end of the elastic arm 22. In addition, in a preferred embodiment, the fixed plate 21 is also penetrated with an anti-climbing tin hole 212, and the anti-climbing tin hole 212 is located between one end of the elastic arm 22 and the fixed plate 21 integrally connected and the corresponding docking portion 23 along the front-to-back direction. The anti-climbing tin hole 212 is filled with an insulating body 1. A bonding seam (not numbered) is formed on the lower surface of the terminal assembly at the bonding position of the anti-climbing tin hole 212 and the insulating body. Along the front-to-back direction, the docking portion 23 is blocked by the bonding seam on the extension path of the elastic arm 227 to achieve the effect of preventing tin from creeping in. Of course, in order to achieve better results, the anti-tin climbing hole 212 needs to be made as large as possible (referring to the extension width along the left-right direction). In a preferred embodiment, the extension width of the anti-tin climbing hole 212 along the left-right direction is not less than half of the width of one end of the elastic arm 22 integrally connected to the fixed plate 21; in a more preferred embodiment, the extension width of the anti-tin climbing hole 212 along the left-right direction is not less than the width of one end of the elastic arm 22 integrally connected to the fixed plate 21.

[0052] The terminal assembly of the present application is mainly used for welding to a docking circuit board (not shown), wherein the lower side surface of each docking portion 23 is attached to the upper surface of the docking circuit board and fixed by welding. In a preferred embodiment, a gap is formed between the lower surface 202 of the fixing plate 21 and the upper surface of the docking circuit board; a gap is formed between the lower surface 102 of the insulating body 1 and the upper surface of the docking circuit board. In this way, the welding stability between the terminal assembly and the docking circuit board can be improved, and the flatness of the docking portion 23 can be improved. If the docking portion 23 and the entire fixing plate 21 are designed to be on the same plane, it is not easy to control the flatness. For example, upward deformation at certain positions can easily affect the welding stability performance between the docking portion 23 and the docking circuit board. The docking portion 23 is uniformly slightly raised to facilitate stable flatness.

[0053] Please refer to Figures 1 to 6 As shown, in a preferred embodiment, the insulating body 1 is also integrally provided with an insulating stopper 104. The upper surface of the insulating stopper 104 is higher than the upper surface 101 of the insulating body 1. The other end of the elastic arm 22 abuts upward against the lower surface of the insulating stopper 104. The lower surface of the other end of the elastic arm 22 is higher than the lower surface 102 of the insulating body 1. Such a design can, on the one hand, appropriately enhance the structural strength of the insulating stopper 104, and on the other hand, provide space for the deformation and displacement of the other end of the elastic arm 22 below the lower surface of the insulating stopper 104.

[0054] The terminal assembly of the present application can be used in a card connector, for example, it can be used in conjunction with a metal cover to form a complete card connector.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

[0056] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A terminal assembly, characterized in that: include: An insulating body (1) is formed with an upper surface (101) and a lower side surface (102); A plurality of terminal holes (10) are formed through the insulating body (1); A plurality of conductive terminals (2), each of the conductive terminals (2) being formed with a fixing plate (21) embedded in the insulating body (1), an elastic arm (22) extending from the fixing plate (21) to the outside of the insulating body (1), and a docking portion (23) extending from the fixing plate (21) and exposed outside the lower surface (102) of the insulating body (1); At least a portion of the elastic arm (22) protrudes upward from the terminal hole (10) to above the upper surface (101) and is capable of elastic deformation in the up-down direction; The upper surface (201) of the fixing plate (21) is embedded between the upper surface (101) and the lower surface (102) of the insulating body (1); The lower surface (202) of the fixing plate (21) is flush with the lower surface (102) of the insulating body (1).

2. The terminal assembly according to claim 1, characterized in that: The docking portion (23) is formed by stamping the fixing plate (21) downward in the up-down direction, and the lower surface of the docking portion (23) protrudes downward and exceeds the lower surface (102) of the insulating body (1).

3. The terminal assembly according to claim 2, characterized in that: The docking portion (23) is in the shape of a fixed beam, the two ends of the docking portion (23) are respectively connected to the fixed plate (21) as a whole, and through holes (203) are respectively formed on both sides of the docking portion (23); A clearance through hole (103) is formed through the insulating body (1), and the docking portion (23) is formed in the clearance through hole (103).

4. The terminal assembly according to claim 1, 2 or 3, characterized in that: Also includes: The implantation portion (211) is formed by the fixing plate (21) being bent and extended upwardly in an inclined manner, and the implantation portion (211) is embedded and fixed in the insulating body (1).

5. The terminal assembly according to claim 4, characterized in that: Also includes: A fixing through hole (2110) is formed through the position where the implanting part (211) is connected to the fixing plate (21), and the fixing through hole (2110) is filled with an insulating body (1).

6. The terminal assembly according to claim 1, 2 or 3, characterized in that: Each of the elastic arms (22) is formed to extend in the front-rear direction, one end of the elastic arm (22) is integrally connected to the fixing plate (21), and the other end of the elastic arm (22) is cantilevered; At least one docking portion (23) is formed at a position where the fixing plate (21) is connected to one end of the elastic arm (22); An anti-climbing tin hole (212) is formed through the fixing plate (21), and the anti-climbing tin hole (212) is located between one end of the elastic arm (22) and the fixing plate (21) integrally connected and the corresponding docking portion (23) along the front-back direction; The anti-climbing tin hole (212) is filled with an insulating body (1).

7. The terminal assembly according to claim 2 or 3, characterized in that: Also includes: A docking circuit board (not shown), wherein the lower side surface of each docking portion (23) is attached to the upper surface of the docking circuit board and fixed by welding; A gap is formed between the lower surface (202) of the fixing plate (21) and the upper surface of the docking circuit board; A spacing gap is formed between the lower surface (102) of the insulating body (1) and the upper surface of the docking circuit board.

8. The terminal assembly according to claim 1, 2 or 3, characterized in that: Each of the elastic arms (22) is formed to extend in the front-rear direction, one end of the elastic arm (22) is integrally connected to the fixing plate (21), and the other end of the elastic arm (22) is cantilevered; An insulating stopper (104) is integrally arranged with the insulating body (1); The upper surface of the insulating stop portion (104) is higher than the upper surface (101) of the insulating body (1); The other end of the elastic arm (22) abuts upward against the lower surface of the insulating stop portion (104); The lower surface of the other end of the elastic arm (22) is higher than the lower surface (102) of the insulating body (1).

9. A card connector, characterized in that: Comprising the terminal assembly as described in any one of claims 1 to 8.

10. The card connector according to claim 9, characterized in that: The terminal assembly can be matched with a SIM card to contact and realize signal transmission.

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