A miniaturized dual-contact latching electrical connector

Abstract

This utility model discloses a miniaturized dual-contact locking electrical connector, comprising a connector body, which includes a pin socket and a housing that mates with the pin socket. The pin socket has a terminal structure, which includes multiple spring sheets with a dual-spring sheet structure. Each spring sheet forms a dual contact to engage with the inserted pin. The connector body also has a locking structure. The connector features an ultra-thin design to meet miniaturized integration requirements and provides strong mechanical holding force, effectively resisting vibration, impact, and cable pulling. The locking feedback during sliding prevents loose insertion, improving assembly accuracy. The dual-contact design ensures stable contact. The dual-spring sheet structure reduces the risk of connection failure through redundancy, increases the contact area to reduce resistance, improve current carrying capacity and signal transmission capability, and buffers vibration, ensuring electrical connection stability.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, specifically to a miniaturized dual-contact locking electrical connector. Background Technology

[0002] Electrical connectors are key components for circuit connections in electronic devices, widely used in consumer electronics, communications, industrial control, automotive electronics, and medical fields. As electronic devices become increasingly thinner and smaller, the spatial adaptability requirements for electrical connectors are becoming increasingly stringent. Simultaneously, under complex operating conditions such as vibration, impact, or cable pulling, electrical connectors must possess both reliable mechanical holding force and stable electrical connection performance. However, existing small electrical connectors have significant shortcomings: First, low space utilization; some products are too tall or have excessively large terminal spacing, making them difficult to fit into ultra-thin or space-constrained devices such as laptops and portable medical devices. Second, poor reliability of the locking structure; insufficient holding force, prone to loosening in harsh environments, and lack of clear locking feedback, making it difficult for operators to determine if assembly is correct, easily leading to incomplete insertion. Third, suboptimal contact design; many use single-contact structures, resulting in poor contact stability (a single contact failure can easily lead to connection failure), high contact resistance, and weak vibration resistance, affecting the stable transmission of electrical signals or current. Therefore, there is an urgent need to develop an electrical connector that combines miniaturization, reliable locking, and high-reliability contact to meet the market's dual demands for device integration and reliability. Utility Model Content

[0003] To overcome the shortcomings of existing technical solutions, this utility model provides a miniaturized dual-contact locking electrical connector, which can effectively solve the problems mentioned in the background art.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] A miniaturized dual-contact latching electrical connector includes a connector body, the connector body including a pin socket and a rubber shell that is adapted to be inserted into the pin socket;

[0006] The pin holder is provided with a terminal structure, which includes a plurality of spring sheets with a double spring sheet structure, each spring sheet forming a double contact point to contact the inserted pin.

[0007] The connector body is also provided with a locking structure, which includes a first latch and a second latch that are slidably disposed on the housing. The pin holder is provided with a protrusion corresponding to the first latch and the second latch for sliding locking. When the housing is inserted into the pin holder, the first latch and the second latch are pushed to slide to the locking position that cooperates with the protrusion, so as to realize the firm connection between the housing and the pin holder and generate locking feedback.

[0008] As a further description of the above technical solution, the needle holder is provided with a positioning hole, and the rubber shell is provided with a corresponding positioning buckle. When the rubber shell is inserted into the needle holder, the positioning buckle is connected to the positioning hole.

[0009] As a further description of the above technical solution, the pin holder has a first connecting end, and the housing has a second connecting end adapted to the first connecting end. When the first connecting end and the second connecting end are inserted and engaged, the double contacts of the terminal structure make contact with the pin and conduct electricity.

[0010] As a further description of the above technical solution, the needle holder is provided with a connecting structure, the connecting structure including a first connecting seat and a second connecting seat, the first connecting seat and the second connecting seat being respectively disposed on both sides of the needle holder.

[0011] As a further description of the above technical solution, the double spring sheet structure consists of two independent elastic sheets, and the two elastic sheets respectively contact the pin to form a double contact point.

[0012] As a further description of the above technical solution, the first latch and the second latch are symmetrically arranged on both sides of the rubber shell, and the protrusion is correspondingly arranged on both sides of the needle seat and is adapted to the sliding trajectory of the first latch and the second latch.

[0013] As a further description of the above technical solution, the overall height of the connector body does not exceed 5mm, and the spacing between adjacent terminal structures does not exceed 2mm.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] The miniaturized dual-contact locking electrical connector of this utility model has at least one of the following beneficial effects during use:

[0016] The connector body has an overall height of no more than 5mm and a spacing between adjacent terminals of no more than 2mm, making it compatible with ultra-thin or space-constrained electronic devices such as laptops and portable medical devices, meeting the requirements for miniaturized integration. Secondly, the locking structure is reliable. The symmetrical first and second locking latches on both sides of the housing cooperate with the protruding part of the pin seat to provide strong mechanical holding force, effectively resisting vibration, impact and cable pulling. The locking feedback during sliding can avoid incomplete insertion and improve assembly accuracy. Thirdly, the dual-contact contact is stable. The dual contacts composed of dual spring sheets not only reduce the risk of connection failure through redundancy, but also increase the contact area to reduce resistance, improve current carrying capacity and signal transmission capacity, and also buffer vibration to ensure the stability of electrical connection. Fourthly, the positioning and connection structure is highly auxiliary. The positioning latch of the housing and the positioning hole of the pin seat achieve preliminary accurate positioning, and the connecting seats on both sides of the pin seat provide double-sided support, further ensuring the structural stability after insertion and locking. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the first overall structure of a small anti-loosening double-contact locking electrical connector according to the present invention;

[0018] Figure 2 This is a schematic diagram of the second integral structure of a small anti-loosening double-contact locking electrical connector according to the present invention;

[0019] Figure 3 This is a schematic diagram of the pin seat structure of a small anti-loosening double-contact locking electrical connector according to the present invention;

[0020] Figure 4 This is a schematic diagram of the side structure of the housing of a small locking electrical connector with anti-loosening dual contacts according to this utility model;

[0021] Figure 5 This is a top view of the housing structure of a small anti-loosening double-contact locking electrical connector according to this utility model;

[0022] Figure 6 This is a schematic diagram of the terminal structure of a small anti-loosening double-contact locking electrical connector according to the present invention.

[0023] Numbering on the map:

[0024] 1. Connector body; 101. Terminal structure; 102. Pin socket; 103. Positioning hole; 104. First connecting end; 105. Second connecting end; 106. Positioning buckle; 107. Spring sheet; 108. Housing; 2. Locking structure; 201. First locking buckle; 202. Second locking buckle; 203. Protrusion; 3. Connection structure; 301. First connecting seat; 302. Second connecting seat. Detailed Implementation

[0025] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] like Figure 1-6 As shown, this utility model provides a miniaturized dual-contact locking electrical connector, including a connector body 1, wherein the connector body 1 includes a pin seat 102 and a plastic shell 108 adapted to be inserted into the pin seat 102.

[0027] The pin holder 102 is provided with a terminal structure 101, which includes a plurality of spring sheets 107 with a double spring sheet 107 structure. Each spring sheet 107 forms a double contact point to contact the inserted pin.

[0028] When the housing 108 is inserted into the pin holder 102, the positioning buckle 106 on the housing 108 first engages with the positioning hole 103 on the pin holder 102 to achieve initial positioning, ensuring the accurate relative position of the housing 108 and the pin holder 102, providing a foundation for subsequent precise insertion and locking. Subsequently, the second connecting end 105 of the housing 108 is gradually inserted into the first connecting end 104 of the pin holder 102. During this process, the spring sheet 107 (two independent elastic sheets) with a double spring sheet 107 structure in the terminal structure 101 simultaneously contacts the pin, preparing for electrical conduction.

[0029] The connector body 1 is also provided with a locking structure 2. The locking structure 2 includes a first latch 201 and a second latch 202 that are slidably disposed on the housing 108. The pin holder 102 is provided with a protrusion 203 corresponding to the first latch 201 and the second latch 202 for sliding locking. When the housing 108 is inserted into the pin holder 102, the first latch 201 and the second latch 202 are pushed to slide to the locking position that cooperates with the protrusion 203, so as to realize the firm connection between the housing 108 and the pin holder 102 and generate locking feedback.

[0030] After the housing 108 and needle holder 102 are properly inserted, manually push the first latch 201 and the second latch 202, which are symmetrically arranged on both sides of the housing 108, so that the latches slide along the designed trajectory to the locking position where they engage with the protrusion 203 on the needle holder 102. During the sliding process, a clear "positioning sensation" (locking feedback) will be generated, indicating to the operator that the assembly is complete; at the same time, the engagement of the first latch 201, the second latch 202 and the protrusion 203 provides a firm mechanical holding force for the housing 108 and the needle holder 102.

[0031] In the locked state, the double spring sheet 107 (double contact) of the terminal structure 101 remains in continuous contact with the pin, achieving stable electrical conduction. Furthermore, due to the firm holding force provided by the locking structure 2, the housing 108 and the pin seat 102 will not loosen even under external forces such as vibration, impact, or cable pulling. The double spring sheet 107 can also maintain the contact pressure with the pin through its own elasticity, further ensuring the stability of the electrical connection.

[0032] Furthermore, the needle holder 102 is provided with a positioning hole 103, and the plastic shell 108 is correspondingly provided with a positioning buckle 106. When the plastic shell 108 is inserted into the needle holder 102, the positioning buckle 106 connects with the positioning hole 103. The cooperation between the "positioning buckle 106" of the plastic shell 108 and the "positioning hole 103" of the needle holder 102 achieves precise positioning at the initial stage of insertion, providing a preliminary guarantee for the accuracy of subsequent locking and electrical connection, and further optimizing the assembly experience.

[0033] Furthermore, the pin holder 102 has a first connecting end 104, and the housing 108 has a second connecting end 105 adapted to the first connecting end 104. When the first connecting end 104 and the second connecting end 105 are inserted and engaged, the double contacts of the terminal structure 101 make contact with the pin and conduct electricity.

[0034] =The needle holder 102 is provided with a connecting structure 3, the connecting structure 3 includes a first connecting seat 301 and a second connecting seat 302, the first connecting seat 301 and the second connecting seat 302 are respectively disposed on both sides of the needle holder 102.

[0035] The first connecting seat 301 and the second connecting seat 302 on both sides of the needle holder 102 provide "double-sided support" when the housing 108 is inserted into the needle holder 102, which avoids structural deformation or loosening of the connection caused by unilateral force, and further ensures the stability of the overall structure during the insertion process and after locking.

[0036] Furthermore, the dual-spring sheet 107 structure consists of two independent elastic sheets, each of which contacts the pin to form a dual contact. Each spring sheet 107 employs a "dual-spring sheet 107 (two independent elastic sheets)" structure, forming dual contacts with the pin. Even if one contact experiences poor contact due to wear, oxidation, or other reasons, the other contact can still maintain the connection, effectively providing a "redundant backup" for the electrical connection. This significantly reduces the risk of connection failure and is particularly suitable for scenarios with high reliability requirements (such as medical monitoring equipment and industrial PLC modules).

[0037] The dual contacts provide a larger contact area, which on the one hand reduces contact resistance and improves current carrying capacity (suitable for high current transmission scenarios), while reducing signal transmission impedance (beneficial for high-speed signal transmission in communication equipment); on the other hand, the larger contact area helps heat dissipation, reduces contact aging caused by heat, and extends the life of the connector.

[0038] The elastic structure of the dual spring sheet 107 can better buffer the displacement caused by vibration and maintain the contact pressure with the pin, ensuring the stability of the electrical connection even in scenarios with frequent vibration (such as automotive electronics and industrial sensors).

[0039] Furthermore, the first latch 201 and the second latch 202 are symmetrically arranged on both sides of the housing 108, and the protrusion 203 is correspondingly arranged on both sides of the pin seat 102 and is adapted to the sliding trajectory of the first latch 201 and the second latch 202. The "positioning sensation" (locking feedback) when sliding the latch can intuitively indicate to the operator that the assembly is complete, avoiding the problems of "half-insertion" or "incomplete insertion", greatly improving the accuracy and efficiency of assembly, and reducing the risk of failure caused by improper assembly.

[0040] The engagement of the first latch 201, the second latch 202, and the "protrusion 203" of the pin holder 102 provides a strong mechanical holding force, effectively resisting external forces such as vibration, impact (such as vibration in industrial sites or during vehicle operation) and cable pulling, ensuring that the housing 108 and the pin holder 102 do not loosen under harsh working conditions, thus improving the connection reliability in complex environments.

[0041] Furthermore, the overall height of the connector body 1 does not exceed 5mm, and the spacing between adjacent terminal structures 101 does not exceed 2mm. The fact that the overall height of the connector body 1 does not exceed 5mm and the spacing between adjacent terminal structures 101 does not exceed 2mm significantly reduces space requirements, allowing for perfect adaptation to ultra-thin or space-constrained electronic devices such as laptops, portable medical devices, and in-vehicle entertainment systems. This meets the integration needs of miniaturized devices and supports lightweight and compact product design.

[0042] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A miniaturized dual-contact locking electrical connector, characterized in that: Includes a connector body, the connector body including a pin socket and a housing that is adapted to be inserted into the pin socket; The pin holder is provided with a terminal structure, which includes a plurality of spring sheets with a double spring sheet structure, each spring sheet forming a double contact point to contact the inserted pin. The connector body is also provided with a locking structure, which includes a first latch and a second latch that are slidably disposed on the housing. The pin holder is provided with a protrusion corresponding to the first latch and the second latch for sliding locking. When the housing is inserted into the pin holder, the first latch and the second latch are pushed to slide to the locking position that cooperates with the protrusion, so as to realize the firm connection between the housing and the pin holder and generate locking feedback.

2. The miniaturized dual-contact locking electrical connector according to claim 1, characterized in that: The needle holder is provided with a positioning hole, and the rubber shell is provided with a corresponding positioning buckle. When the rubber shell is inserted into the needle holder, the positioning buckle is connected to the positioning hole.

3. A miniaturized dual-contact locking electrical connector according to claim 1, characterized in that: The pin holder has a first connecting end, and the housing has a second connecting end that is adapted to the first connecting end. When the first connecting end and the second connecting end are inserted and engaged, the double contacts of the terminal structure make contact with the pin and conduct electricity.

4. A miniaturized dual-contact locking electrical connector according to claim 1 or 3, characterized in that: The needle holder is provided with a connecting structure, which includes a first connecting seat and a second connecting seat, and the first connecting seat and the second connecting seat are respectively disposed on both sides of the needle holder.

5. A miniaturized dual-contact locking electrical connector according to claim 1, characterized in that: The dual-spring sheet structure consists of two independent elastic sheets, each of which contacts the pin to form a dual contact point.

6. A miniaturized dual-contact locking electrical connector according to claim 1, characterized in that: The first and second latches are symmetrically arranged on both sides of the rubber shell, and the protrusions are correspondingly arranged on both sides of the needle seat and are adapted to the sliding trajectory of the first and second latches.

7. A miniaturized dual-contact locking electrical connector according to claim 1, characterized in that: The overall height of the connector body does not exceed 5mm, and the spacing between adjacent terminal structures does not exceed 2mm.

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