An electrical connector

By designing the guide section and sliding contact section, and combining the spring-type electrical connector with the pin-type electrical contact, the tolerance and connection efficiency issues of plug-in connectors are solved, achieving efficient and tight electrical connection, and improving ease of operation and service life.

CN116995476BActive Publication Date: 2026-04-21XIAMEN GUANG WANG IND
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
XIAMEN GUANG WANG IND
Filing Date
2023-08-11
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Existing plug-in connectors are difficult to achieve large tolerance mating in floating structures, and have low connection efficiency, which affects the reliability and service life of electrical contacts.

Method used

An electrical connector is designed in which the first connector and the second connector are aligned and embedded by the smooth movement of the guide and the sliding contact. The electrical connector adopts a spring-type floating design. The electrical connector and the electrical contact are connected tightly by the boss structure and the pin-shaped contact to compensate for assembly errors.

Benefits of technology

It improves the convenience of the mating operation and the tightness of the electrical connection, simplifies the structure, and enhances the performance and lifespan of the connector.

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Abstract

The application provides an electric connector, which comprises a first connector and a second connector; a bottom side of a first insulating shell of the first connector is provided with a plug-in part, and corresponding left and right sides of the plug-in part are respectively provided with guide parts; a top side of a second insulating shell of the second connector is provided with a joint part, and corresponding left and right sides of the joint part are respectively provided with slide contact parts; the electric connecting part is provided with a floating part in a spring sheet type near a bottom end area; in a mutual plug-in state of the first connector and the second connector, the guide parts move along the slide contact parts smoothly until the plug-in part is embedded in the joint part in a position alignment manner, so that the electric connecting part and the electric contact part form an electric connection; the floating seat on the shell is cancelled, the structure is more optimized and simple, and the electric connecting part is directly provided with the floating part in the spring sheet type, so that the electric connecting part and the electric contact part can achieve a more efficient and compact electric connection after the two connectors are plugged in.
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Description

Technical Field

[0001] This invention relates to the field of terminal block technology, and more specifically, to an electrical connector. Background Technology

[0002] In plug-in connector applications, a floating structure is typically placed on the base housing, allowing for a floating displacement after alignment and mating. However, this type of connector has high requirements, low connection efficiency, and difficulty in achieving large tolerances in mating. Furthermore, to ensure a more reliable connection between internal electrical contacts, even without high mating precision, the effectiveness and lifespan of each connecting component must be guaranteed for the sake of contact method effectiveness and operability. Therefore, how quickly and effectively the connector can achieve mating operations is particularly important. Summary of the Invention

[0003] In view of this, the object of the present invention is to provide an electrical connector to solve the above problems.

[0004] The present invention adopts the following solution:

[0005] This application provides an electrical connector, including a first connector and a second connector that can be mated to each other. The first connector includes a first insulating shell and a plurality of electrical connectors disposed on the first insulating shell. The bottom side of the first insulating shell is provided with a plug-in portion, and the corresponding left and right sides are respectively provided with guide portions. The second connector includes a second insulating shell and a plurality of electrical contacts disposed on the second insulating shell. The top side of the second insulating shell is provided with a joint portion, and the corresponding left and right sides are respectively provided with sliding contacts. The electrical connectors are spring-type floating arrangements near the bottom. When the first connector and the second connector are mated together, the guide portions move smoothly along the sliding contacts until the plug-in portion is aligned and embedded in the joint portion, so that the electrical connectors and electrical contacts form an electrical connection.

[0006] As a further improvement, the first insulating shell is a plug-type frame, the plug portion is configured as a slot structure with a bottom opening, and the guide portion extends to form on both sides of the outside of the slot structure.

[0007] As a further improvement, the second insulating housing is a socket-type frame, the joint is configured as a cavity structure with a top opening, the interior of the cavity structure is provided with a boss structure that is compatible with the slot structure, and the sliding contact is correspondingly formed in the cavity structure.

[0008] As a further improvement, the guide portion is configured as an outer insert with a concave notch, the sliding contact portion is configured as an outer convex sidewall adapted to the concave notch, and the outer convex sidewall is integrally formed on the inner sidewall of the chamber structure.

[0009] As a further improvement, the concave notch is formed on one of the outer corners of the external insert, and the convex sidewall is formed on one of the inner corners of the chamber structure.

[0010] As a further improvement, the electrical connectors are regularly arranged in the slot structure, and the electrical connectors are integrally bent to form a contact head; multiple electrical connectors are spaced apart along the length direction, and two symmetrically arranged electrical connectors are arranged opposite each other along the width direction, and the contacts of the two are opposite each other to form a space that facilitates the insertion of the boss structure.

[0011] As a further improvement, the boss structure is provided with electrical contacts that cooperate with the electrical connector in a regular arrangement. The electrical contacts are pin-shaped and are used to make direct contact with the contact head of the electrical connector.

[0012] As a further improvement, the contact head is curved into a hook to form a floating engagement with the electrical contact, the electrical connector has a fixing part in the vicinity of the top region for mounting within its insulating housing, the electrical contact has another fixing part in the vicinity of the top region for mounting within its insulating housing, and the electrical contact has a bent pin extending to the outside in the vicinity of the bottom region.

[0013] As a further improvement, the spacing between two adjacent electrical connectors along the length direction is limited to 1.5 mm, and at least 10 electrical connectors are provided in a row.

[0014] As a further improvement, the spacing between two adjacent electrical connectors along the length direction is limited to 2.0 mm, and at least 10 electrical connectors are provided in a row.

[0015] As a further improvement, the second insulating shell is assembled from an upper shell and a lower shell, wherein the upper shell and the lower shell are connected by a mutual support plug-in connection, and after the two are assembled, a hollow area is formed that exposes part of the electrical contacts.

[0016] This application also provides an electrical connector, including a first connector and a second connector that can be mated to each other; the first connector includes a first insulating shell and a plurality of electrical connectors disposed on the first insulating shell; the second connector includes a second insulating shell and a plurality of electrical contacts disposed on the second insulating shell; in a mated state, the electrical connectors and the electrical contacts form an electrical connection; the electrical connectors have a larger width dimension than the electrical contacts, and in the mated state, the electrical contacts have a sliding amount relative to the electrical connectors that deflects along the mating plane, and the sliding amount is configured to compensate for assembly errors between the first connector and the second connector.

[0017] By adopting the above technical solution, the present invention can achieve the following technical effects:

[0018] 1. The electrical connector of this application features a floating design on the electrical connector, eliminating the need for a floating seat on the housing. This results in a more optimized and simpler structure. Furthermore, the floating design on the electrical connector via a spring-loaded mechanism enables a more efficient and tighter electrical connection between the electrical connector and the electrical contacts after the two connectors are plugged in.

[0019] 2. The first connector is provided with a plug-in part and a guide part, and the second connector is provided with a joint part and a sliding contact part. The plug-in part located on the bottom side and the joint part located on the top side can be aligned and embedded between the guide parts on both sides after they move smoothly along their respective sliding contact parts. This allows the two connectors to be quickly and smoothly plugged together, significantly improving the convenience of the electrical connector during operation and greatly improving the operation method of electrical connection. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of an electrical connector according to an embodiment of the present invention;

[0021] Figure 2 yes Figure 1 Disassembly diagram;

[0022] Figure 3 yes Figure 2 Partial disassembly diagram;

[0023] Figure 4 yes Figure 1 Cross-sectional view in the middle;

[0024] Figure 5 This is a disassembly diagram of an electrical connector according to an embodiment of the present invention;

[0025] Figure 6 yes Figure 5 Partial disassembly diagram;

[0026] Figure 7 yes Figure 5 Cross-sectional view in the middle;

[0027] Figure 8 yes Figure 7 Cross-sectional view of the two connectors after they are plugged in;

[0028] Figure 9 This is a disassembly diagram of an electrical connector according to an embodiment of the present invention from other perspectives;

[0029] Figure 10 yes Figure 9 A disassembly diagram from another perspective;

[0030] Figure 11 This is a schematic diagram of the structure of an electrical connector according to another embodiment of the present invention;

[0031] Figure 12 yes Figure 11 Cross-sectional view;

[0032] Figure 13 yes Figure 11 Partial disassembly diagram.

[0033] Icons: 1-First connector; 11-First insulating shell; 111-Mating part; 112-Guide part; 113-Concave notch; 12-Electrical connector; 121-Contact head; 122-Fixing part; 2-Second connector; 21-Second insulating shell; 21A-Upper shell; 21B-Lower shell; 21C-Pin; 21D-Slot; 211-Mating part; 212-Sliding contact; 213-Boss structure; 214-Outwardly protruding sidewall; 22-Electrical contact; 221-Fixing part; 222-Pin. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to represent selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Example

[0036] Combination Figures 1 to 13This embodiment provides an electrical connector, including a first connector 1 and a second connector 2 that can be mated together. The first connector 1 includes a first insulating shell 11 and a plurality of electrical connectors 12 disposed on the first insulating shell 11. The bottom side of the first insulating shell 11 has a mating portion 111, and corresponding guide portions 112 are provided on its left and right sides. The second connector 2 includes a second insulating shell 21 and a plurality of electrical contacts 22 disposed on the second insulating shell 21. The top side of the second insulating shell 21 has a joining portion 211, and corresponding sliding contacts 212 are provided on its left and right sides. The electrical connectors 12 are spring-loaded and floatable in the region near the bottom. When the first connector 1 and the second connector 2 are mated together, the guide portions 112 move smoothly along the sliding contacts 212 until the mating portion 111 is aligned and embedded in the joining portion 211, thereby forming an electrical connection between the electrical connectors 12 and the electrical contacts 22.

[0037] The aforementioned electrical connector features a floating design on the electrical connector 12, eliminating the need for a floating seat on the housing. This results in a more optimized and simpler structure. Furthermore, the floating mechanism on the electrical connector 12 via a spring-loaded spring allows for a more efficient and tighter electrical connection between the electrical connector 12 and the electrical contact 22 after the two connectors are plugged in.

[0038] In particular, the first connector 1 is provided with a plug-in portion 111 and a guide portion 112, and the second connector 2 is provided with a mating portion 211 and a sliding contact portion 212. The plug-in portion 111 disposed on the bottom side and the mating portion 211 disposed on the top side can be aligned and inserted between the guide portions 112 on both sides after they move smoothly along their respective sliding contact portions 212. This allows the two connectors to be quickly and smoothly plugged together, significantly improving the convenience of the electrical connector during operation and greatly improving the operation method of electrical connection.

[0039] like Figure 3 , Figure 6 and Figure 7As shown, in this embodiment, the first insulating shell 11 is a plug-type frame, the plug-in portion 111 is configured as a slot structure with a bottom opening, and the guide portion 112 extends and forms on both sides of the slot structure. Correspondingly, the second insulating shell 21 is a socket-type frame, the joint portion 211 is configured as a chamber structure with a top opening, and the interior of the chamber structure is provided with a boss structure 213 adapted to the slot structure for plugging, and the sliding contact portion 212 is correspondingly formed within the chamber structure. When the two connectors are plugged in, they are directly embedded into the chamber structure through the slot structure, and the boss structure 213 in the chamber structure further engages with the slot structure, thereby ensuring a tight fit between the plug-in portion 111 and the joint portion 211. Furthermore, the guide portion 112 extending outside the slot structure can maintain a tight fit with the sliding contact portion 212 formed within the chamber structure during the plugging process, ensuring a smoother plugging and better alignment and accuracy.

[0040] like Figure 9 and Figure 10 As shown, in this embodiment, the guide portion 112 is configured as an external insert with a concave notch 113, and the sliding contact portion 212 is configured as a convex sidewall 214 that adapts to the concave notch 113, and the convex sidewall 214 is integrally formed on the inner sidewall of the chamber structure. The external insert is integrally formed on the left and right sides of the slot structure, and extends outward to be more deeply embedded in the chamber structure after insertion. Furthermore, the concave notch 113 and the convex sidewall 214 are designed to mimic each other, allowing for quick and precise relative sliding and fitting during insertion, ensuring a smoother insertion process.

[0041] Furthermore, the concave notch 113 is formed on one of the outer corners of the external plug, and the convex sidewall 214 is correspondingly formed on one of the inner corners of the cavity structure. Thus, the single-sided notch design can define the correct insertion position of the two connectors, preventing the user from inserting them incorrectly, and further facilitating rapid contact and engagement between the guide portion 112 and the sliding contact portion 212.

[0042] like Figure 3 , Figure 6 and Figure 8 As shown, in this embodiment, the electrical connectors 12 are regularly arranged within the slot structure, and each electrical connector 12 is integrally bent to form a contact head 121. Multiple electrical connectors 12 are spaced apart along the length direction, and two symmetrically arranged electrical connectors 12 are positioned opposite each other along the width direction, with their contact heads 121 facing each other to form a space facilitating the insertion of the boss structure 213. The electrical connectors 12 are tightly attached to the inner wall of the slot structure, and their contact heads 121 are bent outwards to form an elastic contact with the electrical connector 12.

[0043] Correspondingly, the boss structure 213 is provided with regularly arranged electrical contacts 22 that mate with the electrical connector 12. The electrical contacts 22 are pin-shaped and designed for direct contact with the contact head 121 of the electrical connector 12. Thus, the pin-shaped electrical contacts 22 and the spring-loaded electrical connector 12 elastically abut against each other, forming an electrical contact. In this embodiment, the width of the electrical contacts 22 is smaller than the width of the electrical connector 12, ensuring that the contact head 121 of the electrical connector 12 can abut against the electrical contacts 22 over a large area.

[0044] Specifically, the contact head 121 is curved to form a floating engagement with the electrical contact 22. The electrical connector 12 has a fixing part 122 near its top for mounting within its insulating housing, and the electrical contact 22 has another fixing part 221 near its top for mounting within its insulating housing. The electrical contact 22 has a bent lead 222 near its bottom. The fixing parts mount the respective electrical connectors 12 and electrical contacts 22 within the housing, achieving a contact connection after insertion. The lead arrangement facilitates soldering the entire electrical connector onto an external circuit board.

[0045] In this embodiment, the arc-shaped hook of the contact head 121 forms a contact point with the electrical contact 22 in a back-bending manner. This contact point is formed on the outermost side of the contact head 121, and springs against the electrical contact 22 after insertion. Wherein, as... Figure 4 As shown, the contact point is located at 2 / 3 depth of the entire first insulating housing 11, which is suitable for close contact between the contact point and the electrical contact 11 at 2 / 3 depth within the first insulating housing 11.

[0046] like Figures 1 to 4 As shown, in one embodiment, the spacing between two adjacent electrical connectors 12 along the length direction is limited to 1.5 mm, and at least 10 electrical connectors 12 are provided in a row. The electrical connectors 12 are configured as integrally bent square spring pieces, which facilitates the arrangement of the electrical connectors 12 and their contact connection with the electrical contact 22.

[0047] like Figures 5 to 8 As shown, in another embodiment, the spacing between two adjacent electrical connectors 12 along the length direction is limited to 2.0 mm, and at least 10 electrical connectors 12 are provided in a row. The electrical connectors 12 are configured as stamped integral parts, which facilitates mass production.

[0048] like Figures 11 to 13As shown, in another embodiment, the second insulating shell 21 is assembled from an upper shell 21A and a lower shell 21B. The upper shell 21A is inserted into and fitted with the first insulating shell 11, with a joint 211, a sliding contact 212, and a boss structure 213 correspondingly disposed within the upper shell 21A. The upper shell 21A has a length and width approximately equal to that of the first insulating shell 11, but its length and width are greater than those of the lower shell 21B, and the height of the lower shell 21B is less than that of the upper shell 21A. The two shells have different dimensions and are molded separately, facilitating the assembly and manufacturing of the overall shell.

[0049] Furthermore, the upper shell 21A and the lower shell 21B are connected by a mutually supporting plug-in connection. Specifically, the lower shell 21B has protruding plugs 21C at both ends, and the upper shell 21A has corresponding slots 21D that engage with the plugs 21C. The two engage with each other, allowing the shells to be assembled together, which greatly improves the stable support between the two shells and provides an effective connection and fixation for the plug-in connection between the connectors. This avoids problems such as instability or even conductivity failure caused by relying solely on electrical contacts to connect the two shells.

[0050] Furthermore, a hollow area is formed between the two assembled shells, exposing part of the electrical contact 22. The hollow area extends through the inside and outside of the insulating shell, allowing part of the electrical contact 22 to be exposed to the outside. On the one hand, the protrusion structure of the upper shell 21A and the through-hole of the lower shell 21B limit the insertion of the electrical contact 22. On the other hand, the hollow area reduces most of the elastic restriction on the electrical contact 22 and facilitates the rapid installation of the electrical contact 22 inside the insulating shell, ensuring effective heat dissipation during electrical connection, saving shell material, and reducing the overall weight.

[0051] Additionally, this embodiment provides an electrical connector, including a first connector 1 and a second connector 2 that can be mated to each other. The first connector 1 includes a first insulating shell 11 and a plurality of electrical connectors 12 disposed on the first insulating shell. The second connector 2 includes a second insulating shell 21 and a plurality of electrical contacts 22 disposed on the second insulating shell. In the mated state of the first connector 1 and the second connector 2, the electrical connectors 12 and the electrical contacts 22 form an electrical connection. The electrical connector 12 has a larger width dimension than the electrical contacts 22. After being mated, the electrical contacts 22 have a sliding amount relative to the electrical connector 12 along the mating plane, and the sliding amount is configured to compensate for assembly errors between the first connector 1 and the second connector 2.

[0052] In the above, the width D of the electrical connector and the width d of the electrical contact are defined. After the two connectors are plugged in, the electrical contact 22 is usually inserted into the electrical connector 12 in a centered position. At this time, the electrical contact 22 has a sliding amount of (Dd) / 2 on both sides along the width direction. However, due to the deviation of the connectors after their assembly, an assembly error is formed after plugging in. In this case, the electrical contact 22 is inserted into the electrical connector 12 with a deviation, and its sliding amount is used to compensate for the deviation during assembly, ensuring that the two connectors always maintain electrical connection. Moreover, the sliding amount is preset to be less than ±0.5mm, and can be selected as ±0.3mm or ±0.2mm, which is more conducive to effective compensation during the assembly process.

[0053] Furthermore, the electrical contact 22 maintains a tight fit along the width direction of the electrical connector 12. Even after misalignment, the electrical contact 22 remains in contact within the width range of the electrical connector 12 to maintain effective contact engagement. Clearly, the electrical connector 12 has at least a partial insertion plane constructed along the end face where its contact point is located.

[0054] The above are merely preferred embodiments of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions that fall within the scope of the present invention are within the scope of protection of the present invention.

Claims

1. An electrical connector, comprising a first connector and a second connector capable of mating with each other; characterized in that, The first connector includes a first insulating shell and a plurality of electrical connectors disposed on the first insulating shell. The bottom side of the first insulating shell has a plug-in portion, and corresponding guide portions are provided on its left and right sides; and... The second connector includes a second insulating housing and a plurality of electrical contacts disposed on the second insulating housing. The top side of the second insulating housing has a mating portion, and corresponding left and right sides each have sliding contact portions. The electrical connector is floating in a spring-loaded manner near the bottom region. When the first connector and the second connector are plugged in, the guide portion moves smoothly along the sliding contact portion until the plugging portion is aligned and embedded in the joint portion, so that the electrical connector and the electrical contact form an electrical connection. The electrical connector has a larger width dimension than the electrical contact. When in the plugged state, the electrical contact has a sliding amount relative to the electrical connector along the plugging plane, and the sliding amount is configured to compensate for the assembly error between the first connector and the second connector.

2. The electrical connector according to claim 1, characterized in that, The first insulating shell is a plug-type frame, the plug portion is configured as a slot structure with a bottom opening, and the guide portion extends to form on both sides of the outside of the slot structure.

3. The electrical connector according to claim 2, characterized in that, The second insulating shell is a socket-type frame, and the joint is configured as a cavity structure with a top opening. The cavity structure has a boss structure that is adapted to be inserted into the slot structure, and the sliding contact is correspondingly formed in the cavity structure.

4. The electrical connector according to claim 3, characterized in that, The guide portion is configured as an outer insert with a concave notch, the sliding contact portion is configured as an outer convex sidewall adapted to the concave notch, and the outer convex sidewall is integrally formed on the inner sidewall of the chamber structure.

5. The electrical connector according to claim 4, characterized in that, The concave notch is formed on one of the outer corners of the external insert, and the convex sidewall is formed on one of the inner corners of the chamber structure.

6. The electrical connector according to claim 3, characterized in that, The electrical connectors are regularly arranged in the slot structure, and each electrical connector is integrally bent to form a contact head; multiple electrical connectors are spaced apart along the length direction, and two symmetrically arranged electrical connectors are arranged opposite each other along the width direction, and the contacts of the two are opposite each other to form a space that facilitates the insertion of the boss structure.

7. The electrical connector according to claim 6, characterized in that, The boss structure is provided with electrical contacts that cooperate with the electrical connectors in a regular arrangement. The electrical contacts are pin-shaped and are used to make direct contact with the contact head of the electrical connectors.

8. The electrical connector according to claim 7, characterized in that, The contact head is curved into an arc-shaped hook to form a floating engagement with the electrical contact. The electrical connector has a fixing part in the vicinity of the top region for mounting within its insulating housing. The electrical contact has another fixing part in the vicinity of the top region for mounting within its insulating housing. The electrical contact has a bent pin extending to the outside in the vicinity of the bottom region.

9. The electrical connector according to claim 1, characterized in that, The second insulating shell is assembled from an upper shell and a lower shell, which are connected by a mutual support plug-in connection, and after assembly, a hollow area is formed that exposes part of the electrical contacts.

Citation Information

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