A mistake-proof plug-in self-guiding blind plug-in connector structure

Abstract

The utility model relates to connector structure technical field, especially in a kind of mistake-proofing self-guided blind plug connector structure, including connector main shell and plug-in device, the connector main shell includes frame shell and outer ear plate, the outer ear plate is symmetrically installed in the both sides of frame shell, and outer ear plate is fixedly connected with frame shell, the center of frame shell is fixedly installed with T-shaped column table, the plug-in device includes outer seat disc and the plug-in column connected with frame shell, the plug-in column is installed in the inner side of outer seat disc, and plug-in column is fixedly connected with outer seat disc. The application is matched by guide strip and limiting groove, and the specific position relation of metal insertion rod and metal sleeve, can effectively prevent misplug in blind plug process, ensure the correct connection of connector, improve the use safety and reliability of equipment. The design of guide strip and guide slope and matching slope provides good guiding effect for plug-in process, so that plug-in column can be accurately inserted into frame shell.

Description

Technical Field

[0001] This utility model relates to the field of connector structure technology, and in particular to a self-guided blind mating connector structure that prevents mis-mating. Background Technology

[0002] In fields such as electronic equipment, industrial control systems, and automated machinery, connectors are key components for achieving circuit continuity and signal transmission. The accuracy and reliability of their connections directly affect the operational stability of the equipment. Especially in special scenarios, such as dimly lit industrial machine rooms, confined spaces inside equipment, or emergency connections requiring rapid plugging and unplugging, operators often cannot visually observe the connector's mating points and must rely on "blind mating" to complete the connection. In these situations, the connector's anti-mismating capability, self-guiding performance, and ease of operation become core elements for ensuring connection efficiency and safety.

[0003] Traditional blind-mating connectors have many limitations in practical applications. Regarding mis-mating prevention, most connectors rely solely on the size difference between the pins and the socket. However, when there are many pins or they are densely packed, subtle size differences are difficult for operators to accurately identify during blind mating, easily leading to mis-mating. Traditional connectors often use threaded tightening or snap-on locking designs. In blind mating scenarios, threaded tightening requires both hands to rotate, which is cumbersome and makes it difficult to judge the degree of tightening. Snap-on locking often results in a "false lock" phenomenon because the snap-on position is hidden, making it difficult for operators to apply accurate force. In reality, it is not fully locked and is prone to falling off when the equipment vibrates, causing signal interruption. Utility Model Content

[0004] This invention solves the problems in related technologies and proposes a self-guided blind mating connector structure that prevents mis-mating.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: A self-guided blind-mating connector structure for preventing mis-mating includes a connector main shell and a connector plug. The connector main shell includes a frame shell and outer ear plates. The outer ear plates are symmetrically installed on both sides of the frame shell and are fixedly connected to the frame shell. A T-shaped post is fixedly installed at the center of the frame shell. The connector includes an outer base plate and a plug post connected to the frame shell. The plug post is installed on the inner side of the outer base plate and is fixedly connected to the outer base plate. The plug post is provided with a locking component that locks with the T-shaped post, and an unlocking bracket for releasing the locking component is also slidably installed on the plug post.

[0006] As a preferred embodiment, the frame includes an outer tube shell and an inner seat, the inner seat being fixedly installed in the outer tube shell, and several sets of metal inserts being evenly installed in the inner seat along the circumferential direction.

[0007] As a preferred embodiment, the inner side of the outer shell is provided with several sets of guide strips, the guide strips are integrally formed with the outer shell, and the head of the guide strip is provided with a guide slope.

[0008] As a preferred embodiment, the outer surface of the plug is uniformly provided with limiting grooves that cooperate with the guide strip, and the head of the limiting groove is provided with a mating slope that cooperates with the guide slope.

[0009] As a preferred embodiment, the inner surface of the plug post is provided with a plurality of metal sleeves that cooperate with the metal plug rods evenly along the circumferential direction, and the metal sleeves are fixedly connected to the plug post.

[0010] As a preferred embodiment, the locking assembly includes an elastic locking plate and a triangular block, wherein the elastic locking plate is symmetrically mounted with insertion posts, and the triangular block is fixedly mounted on the inner side of the elastic locking plate.

[0011] As a preferred embodiment, the unlocking frame includes a bent plate and a trapezoidal push block that cooperates with the triangular block. The bent plate is slidably mounted on the outer base plate, and the trapezoidal push block is fixedly mounted on the inner end of the bent plate.

[0012] Compared with existing technologies, the beneficial effects of this utility model are as follows: This application, through the cooperation of the guide strip and the limiting groove, and the specific positional relationship between the metal plug and the metal sleeve, effectively prevents mis-insertion during blind insertion, ensuring correct connector connection and improving the safety and reliability of the equipment. The design of the guide strip, guide slope, and mating slope provides excellent guidance for the insertion process, allowing the plug pin to be accurately inserted into the frame, improving the success rate and efficiency of insertion, especially suitable for scenarios with insufficient light or where the insertion part cannot be directly observed. The locking assembly can reliably lock the plug and the connector main shell, preventing accidental separation during use. The unlocking bracket facilitates the separation of the plug and the connector main shell, simplifying operation and improving ease of use. Attached Figure Description

[0013] Figure 1 This is an exploded structural diagram of the overall structure in an embodiment of this utility model; Figure 2 This is a perspective view of the connector main shell in an embodiment of this utility model; Figure 3 This is a perspective view of the connector and engagement assembly in an embodiment of the present invention. Figure 4 yes Figure 3 A front view of the device shown; Figure 5 yes Figure 4 A cross-sectional view of the device shown along the AA direction; Figure 6 yesFigure 4 The device shown is a cross-sectional view along the BB direction.

[0014] In the diagram: 1. Connector main housing; 11. Frame housing; 111. Outer tube housing; 112. Inner seat; 113. Metal plug; 12. Outer ear plate; 13. Guide strip; 2. T-shaped post; 3. Connector; 31. Outer seat plate; 32. Plug post; 321. Limiting groove; 322. Metal sleeve; 4. Engaging assembly; 41. Elastic locking plate; 42. Triangular block; 5. Unlocking frame; 51. Bending plate; 52. Trapezoidal push block. Detailed Implementation

[0015] 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. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0016] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0017] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0018] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0019] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0020] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0021] Reference Figure 1 , Figure 2 and Figure 3As shown, a self-guided blind-mating connector structure for preventing mis-mating includes a connector main shell 1 and a connector 3. The connector main shell 1 includes a frame shell 11 and outer ear plates 12. The outer ear plates 12 are symmetrically installed on both sides of the frame shell 11 and are fixedly connected to the frame shell 11. A T-shaped post 2 is fixedly installed at the center of the frame shell 11. The connector 3 includes an outer base plate 31 and a plug post 32 connected to the frame shell 11. The plug post 32 is installed on the inner side of the outer base plate 31 and is fixedly connected to the outer base plate 31. A locking component 4 that locks with the T-shaped post 2 is provided in the plug post 32, and an unlocking bracket 5 that releases the locking component 4 is also slidably installed on the plug post 32. This defines the basic components of the self-guided blind-mating connector structure for preventing mis-mating, including the connector main shell 1 and the connector 3. The outer ear plates 12 of the connector main shell 1 can be used to fix the connector main shell 1 in a specific position, enhancing the stability of the structure. The T-shaped post 2, in conjunction with the locking assembly 4, reliably locks the connector 3 to the connector housing 1, preventing accidental separation during use. The unlocking bracket 5 facilitates the separation of the connector 3 from the connector housing 1, improving ease of use.

[0022] Reference Figure 2 As shown, the frame housing 11 includes an outer tube housing 111 and an inner seat 112. The inner seat 112 is fixedly installed in the outer tube housing 111, and several sets of metal inserts 113 are evenly installed in the inner seat 112 along the circumferential direction. The frame housing 11 is further divided into an outer tube housing 111 and an inner seat 112. The metal inserts 113 are installed in the inner seat 112. This structural design makes the installation of the metal inserts 113 more stable. The outer tube housing 111 provides protection for the inner seat 112 and the metal inserts 113, preventing them from being impacted and damaged by external forces. It also helps to maintain the positional accuracy of the metal inserts 113 and ensure a good fit with the metal sleeve 322. Several sets of guide strips 13 are provided on the inner side of the outer tube housing 111. The guide strips 13 are integrally formed with the outer tube housing 111, and the head of the guide strips 13 has a guide slope. The guide strips 13 on the inner side of the outer tube housing 111 and the guide slope at their heads provide a guiding function for the insertion of the plug-in post 32. During blind insertion, the guide bar 13 guides the insertion post 32 to accurately insert into the frame shell 11, reducing the possibility of misinsertion and improving the success rate and efficiency of insertion. The one-piece molding design ensures the strength and stability of the guide bar 13. The outer shell 111 is preferably made of PA66-GF30 material with a wall thickness of 2.5mm, and the guide bar 13 inside has a guide slope angle of 45°. The inner seat 112 is a precision casting of brass H62. The metal insertion rod 113 is made of gold-plated phosphor bronze C5191.

[0023] Reference Figure 3 and Figure 4As shown, the outer surface of the plug-in post 32 is uniformly provided with limiting grooves 321 that mate with the guide strip 13. The head of the limiting groove 321 is provided with a mating inclined surface that mates with the guide inclined surface. The limiting groove 321 on the outer surface of the plug-in post 32 mates with the guide strip 13, and the mating inclined surface at the head of the limiting groove 321 interacts with the guide inclined surface of the guide strip 13, further enhancing the guiding effect. This mating relationship allows the plug-in post 32 to move accurately along the guide strip 13 during insertion, ensuring accurate docking of the metal rod 113 and the metal sleeve 322, while also preventing the plug-in post 32 from rotating during insertion, thus improving the accuracy of the connection. Several metal sleeves 322 that mate with the metal rod 113 are uniformly provided along the circumferential direction on the inner surface of the plug-in post 32, and the metal sleeves 322 are fixedly connected to the plug-in post 32. The metal sleeves 322 on the inner surface of the plug-in post 32 mate with the metal rod 113, achieving electrical connection. The metal sleeve 322 is fixedly connected to the plug post 32, ensuring the stability and reliability of the electrical connection. The metal sleeve 322 and metal plug post 113, evenly arranged circumferentially, improve the uniformity of current transmission, reduce resistance and heat generation, and enhance connector performance. The outer housing 31 is machined from 6061-T6 aluminum alloy. The plug post 32 is made of PBT-GF20. The metal sleeve 322 is a beryllium copper C17200 machined part, press-fitted into the plug post 32.

[0024] Reference Figure 5 and Figure 6 As shown, the engaging assembly 4 includes a flexible locking plate 41 and a triangular block 42. The flexible locking plate 41 has the insertion post 32 symmetrically mounted on it, and the triangular block 42 is fixedly mounted on the inner side of the flexible locking plate 41. The design of the flexible locking plate 41 and triangular block 42 in the engaging assembly 4 utilizes the elastic deformation capability of the flexible locking plate 41 to allow the head of the flexible locking plate 41 to engage tightly with the T-shaped post 2. When the insertion post 32 is inserted, the head of the flexible locking plate 41 can smoothly pass over the T-shaped post 2 and lock in place, achieving reliable locking. This engaging method is simple and reliable, effectively preventing the connector 3 from separating from the connector main housing 1 during normal use.

[0025] Reference Figure 5 and Figure 6As shown, the unlocking frame 5 includes a bent plate 51 and a trapezoidal push block 52 that cooperates with the triangular block 42. The bent plate 51 is slidably mounted on the outer base plate 31, and the trapezoidal push block 52 is fixedly mounted on the inner end of the bent plate 51. When unlocking is required, the bent plate 51 is slidably mounted on the outer base plate 31, and the trapezoidal push block 52 cooperates with the triangular block 42. When unlocking is required, the bent plate 51 is slidably moved, and the trapezoidal push block 52 pushes the triangular block 42, causing the elastic locking plate 41 to deform, thereby releasing the engagement between the elastic locking plate 41 and the T-shaped post 2, and separating the connector 3 from the connector main shell 1. This unlocking method is convenient to operate and easy to implement. The bent plate 51 is made of aluminum alloy 6061 bent and formed, with an anodized surface. The trapezoidal push block 52 is a POM injection molded part.

[0026] In this embodiment, when connection is required, the plug-in post 32 is aligned with the frame housing 11, and under the guidance of the guide strip 13 and the limiting groove 321, the plug-in post 32 is inserted into the frame housing 11. As the plug-in post 32 is inserted, the metal plug rod 113 is inserted into the metal sleeve 322, achieving electrical connection. At the same time, the head of the elastic locking plate 41 passes over the T-shaped post 2 and locks in place, locking the connector 3 to the connector main housing 1. When it is necessary to separate the connector 3 from the connector main housing 1, the sliding bending plate 51 and the trapezoidal push block 52 push the triangular block 42, deforming the elastic locking plate 41, releasing the engagement between the elastic locking plate 41 and the T-shaped post 2, and then the plug-in post 32 is pulled out from the frame housing 11.

[0027] The above are preferred embodiments of the present utility model. Those skilled in the art can make changes and modifications to the above embodiments. Therefore, the present utility model is not limited to the specific embodiments described above. Any obvious improvements, substitutions or modifications made by those skilled in the art based on the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A self-guided blind-mating connector structure for preventing mis-mating, comprising a connector main housing (1) and a plug (3), characterized in that: The connector main shell (1) includes a frame shell (11) and an outer ear plate (12). The outer ear plate (12) is symmetrically installed on both sides of the frame shell (11) and is fixedly connected to the frame shell (11). A T-shaped post (2) is fixedly installed at the center of the frame shell (11). The connector (3) includes an outer base plate (31) and a plug-in post (32) connected to the frame shell (11). The plug-in post (32) is installed on the inner side of the outer base plate (31) and is fixedly connected to the outer base plate (31). A locking component (4) is provided in the plug-in post (32) to lock the T-shaped post (2), and an unlocking bracket (5) to unlock the locking component (4) is also slidably installed on the plug-in post (32).

2. The anti-misfit self-guided blind mating connector structure according to claim 1, characterized in that: The frame (11) includes an outer tube shell (111) and an inner seat (112). The inner seat (112) is fixedly installed in the outer tube shell (111), and several sets of metal inserts (113) are evenly installed in the inner seat (112) along the circumferential direction.

3. The anti-misfit self-guided blind mating connector structure according to claim 2, characterized in that: The inner side of the outer shell (111) is provided with several sets of guide strips (13), the guide strips (13) are integrally formed with the outer shell (111), and the head of the guide strips (13) is provided with a guide slope.

4. The anti-misfit self-guided blind mating connector structure according to claim 3, characterized in that: The outer surface of the plug (32) is uniformly provided with a limiting groove (321) that cooperates with the guide strip (13), and the head of the limiting groove (321) is provided with a cooperating inclined surface that cooperates with the guide inclined surface.

5. The anti-misfit self-guided blind mating connector structure according to claim 4, characterized in that: The inner side of the plug (32) is evenly provided with a plurality of metal sleeves (322) that cooperate with the metal plug (113) along the circumferential direction, and the metal sleeves (322) are fixedly connected to the plug (32).

6. The anti-misfit self-guided blind mating connector structure according to claim 5, characterized in that: The locking assembly (4) includes an elastic locking plate (41) and a triangular block (42). The elastic locking plate (41) is symmetrically installed with plug-in posts (32), and the triangular block (42) is fixedly installed on the inner side of the elastic locking plate (41).

7. The anti-misfit self-guided blind mating connector structure according to claim 6, characterized in that: The unlocking frame (5) includes a bent plate (51) and a trapezoidal push block (52) that cooperates with the triangular block (42). The bent plate (51) is slidably mounted on the outer seat plate (31), and the trapezoidal push block (52) is fixedly mounted on the inner end of the bent plate (51).

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