A plug for micro-rectangular connectors

Abstract

The utility model discloses a kind of plug for micro-rectangular connector, including plug shell, plug shell is equipped with plug base inside, two rows of plug spring leaf are contained in plug base, and two rows of plug spring leaf are oppositely arranged, locking mechanism is also set on the two outer side walls of plug shell, the insertion end of plug spring leaf has fifth bending part and sixth bending part, the bending reverse of fifth bending part and sixth bending part is opposite.The beneficial effects of the utility model are: plug spring leaf has fifth bending part and sixth bending part, when plug spring leaf is inserted with socket spring leaf, first, second contact area can be formed, so it has two-point double elastic contact, and product contact reliability can be improved;And by designing "lock catch", "hanging table" of socket can be quickly locked and disconnected when inserting, solve the problem of large size of existing quick-lock connector, so that it meets miniaturization demand.

Description

Technical Field

[0001] This utility model relates to micro rectangular connectors, and more particularly to a plug for micro rectangular connectors. Background Technology

[0002] Common connector locking methods include snap-fit, threaded locking, direct-plug, and quick-lock. Among these, quick-lock connectors are receiving increasing attention due to their ease of operation and reliable structure. Currently, common quick-lock structures in the industry mainly include ball-operated locking mechanisms and spring-loaded push-pull quick-lock mechanisms. These methods have the following drawbacks: a) The locking effect of the steel ball depends on the fitting precision between the steel ball and the hole, which can easily lead to unstable connections. The steel ball locking method has certain limitations in achieving locking and is not suitable for miniaturization requirements; b) The push-pull locking method mainly relies on the locking spring on the socket to be embedded in the groove of the plug to achieve locking. This method cannot achieve rigid locking and may lead to unstable connection under extreme conditions. c) Steel ball locking mechanisms and spring-type push-pull quick-lock mechanisms are generally characterized by complex structures, difficult processing technology, and high costs. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a plug for a micro rectangular connector.

[0004] The purpose of this utility model is achieved through the following technical solution: a plug for a micro rectangular connector, including a plug housing, a plug base assembled inside the plug housing, and two rows of plug springs installed inside the plug base, with the two rows of plug springs arranged opposite to each other. A locking mechanism is also provided on the two outer side walls of the plug housing. The mating end of the plug spring has a fifth bend and a sixth bend, with the bends of the fifth bend and the sixth bend being in opposite directions.

[0005] Optionally, the plug base has a mating groove at the mating end, and the fifth bend and the sixth bend are both located in the mating groove. A clearance groove is provided on the opposite surface of the mating groove. After the plug spring is compressed, the fifth bend can enter the corresponding clearance groove.

[0006] Optionally, the locking mechanism includes a rotating component with a groove along the insertion direction and a hook on the side of the rotating component near the insertion end. The upper and lower side walls of the rotating component have an inwardly protruding rotating part in the middle, and a rotating hole is provided on the rotating part. The left and right side walls of the plug housing have mounting notches, and the upper and lower side walls of the mounting notches have pin holes. A pin is inserted into the pin hole and passes through the corresponding rotating hole. A window is provided on the outer side wall of the rotating component, and an inwardly inclined support spring is provided at the window, and the support spring contacts the outer side wall of the plug housing near the mounting notch.

[0007] Optionally, the rotating part may have an outwardly flared locking handle at the end away from the plug housing's mating end.

[0008] Optionally, the plug housing has anti-reverse protrusions at the mating end.

[0009] Optionally, a sealing ring is fitted onto the mating end of the plug housing.

[0010] Optionally, a guardrail may be installed on the side of the plug housing away from the mating end via a locking screw.

[0011] This utility model has the following advantages: The plug of the micro rectangular connector of this utility model has a fifth bend and a sixth bend. When the plug spring is inserted with the socket spring, it can form the first and second contact areas, thus having double elastic contact at two points, which can improve the contact reliability of the product. Moreover, by designing a "lock", the "hanging platform" of the socket can be quickly locked and disconnected when inserted, which solves the problem of large size of existing quick-lock connectors and makes them meet the miniaturization requirements. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the micro rectangular connector structure; Figure 2 Schematic diagram of the socket structure Figure 1 ; Figure 3 Schematic diagram of the socket structure Figure 2 ; Figure 4 Schematic diagram of the socket structure Figure 3 ; Figure 5 This is a schematic diagram of the contact spring and the socket base. Figure 6 This is a structural diagram of the socket base and socket housing; Figure 7 This is a schematic diagram showing the positions of the positioning base and the socket spring. Figure 8 This is a schematic diagram of the socket spring structure; Figure 9 Schematic diagram of the plug structure Figure 1 ; Figure 10 Schematic diagram of the plug structure Figure 2 ; Figure 11 Schematic diagram of the plug structure Figure 3 ; Figure 12 This is a schematic diagram showing the installation of the locking mechanism on the plug housing; Figure 13 This is a schematic diagram of the plug spring. Figure 14 This is a schematic diagram showing the contact between the socket spring and the plug spring after they are engaged. In the diagram, 1-socket housing, 2-socket base, 3-socket spring, 4-positioning base, 5-tail pad, 6-mounting platform, 7-guide through hole, 8-positioning pin, 9-anti-reverse groove, 10-protrusion, 11-avoidance groove, 12-step, 13-socket barb, 14-positioning post, 15-spring mounting groove, 16-first bend, 17-second bend, 18-third bend, 19-fourth bend, 20-slot, 21-plug housing. 22-Plug base, 23-Anti-reverse protrusion, 24-Allowing groove, 25-Plug spring, 26-Guardrail, 27-Locking mechanism, 28-Sealing ring, 31-Pin, 32-Lock handle, 33-Hook, 34-Support spring, 35-Mounting notch, 36-Lock, 37-Window, 41-Fifth bend, 42-Sixth bend, 43-Plug barb, 44-Positioning block, 45-Suspension notch, 51-First contact area, 52-Second contact area. Detailed Implementation

[0013] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0014] 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 illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0015] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0016] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0017] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used for the convenience of describing this utility model and simplifying the description, and 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0018] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] like Figure 1 As shown, a micro rectangular connector includes a mating socket 100 and a plug 200. In this embodiment, as... Figure 2 , Figure 3 and Figure 4 As shown, the socket 100 for the micro rectangular connector includes a socket housing 1, a socket base 2 is assembled inside the socket housing 1, and two rows of socket springs 3 are assembled inside the socket base 2. The socket base 2 is fixed by a tail gasket 5 installed at the tail of the socket housing 1. The mating end of the socket spring 3 has a first bent portion 16 and a second bent portion 17, and the bending directions of the first bent portion 16 and the second bent portion 17 are opposite. In this embodiment, as shown... Figure 5 and Figure 6 As shown, the upper and lower rows of socket springs 3 are arranged opposite each other, that is, the first bent portion 16 of the upper row of socket springs 3 protrudes upward, and the first bent portion 16 of the lower row of socket springs 3 protrudes downward. Several spring mounting slots 15 are arranged side-by-side on the upper and lower surfaces of the socket base 2. The socket springs 3 are installed in the corresponding spring mounting slots 15. A clearance groove 11 is also provided at the insertion end of the spring mounting slot 15, forming a step 12 between the clearance groove 11 and the mounting slot. The first bent portion 16 of the socket spring 3 is located above the clearance groove 11, and after being compressed, the first bent portion 16 can be pressed into the clearance groove 11. In this embodiment, as shown... Figure 9 , Figure 10 and Figure 11As shown, the plug 200 for the micro rectangular connector includes a plug housing 21, and a plug base 22 is assembled inside the plug housing 21, as... Figure 9 As shown, the plug base 22 contains two rows of upper and lower plug spring contacts 25, which are arranged opposite to each other. Figure 9 and Figure 12 As shown, locking mechanisms 27 are also provided on the two outer side walls of the plug housing 21, such as... Figure 13 As shown, the insertion end of the plug spring 25 has a fifth bend 41 and a sixth bend 42, the bends of the fifth bend 41 and the sixth bend 42 being opposite in direction. In this embodiment, as... Figure 9 and Figure 14 As shown, the fifth bend 41 of the plug spring 25 in the upper row bends downward, while the fifth bend 41 of the plug spring 25 in the lower row bends upward. Therefore, after the plug 200 and the socket 100 are inserted, the socket spring 3 and the plug spring 25 have a first contact area 51 and a second contact area 52. The plug 200 and the socket 100 are locked by the locking mechanism 27. Therefore, after the socket 100 and the plug 200 are inserted, the micro rectangular connector has two-point double elastic contact, which can improve the contact reliability of the connector.

[0020] In this embodiment, as Figure 6 As shown, the spring mounting groove 15 located at the assembly end of the socket base 2 extends upward and downward to form a slot 20. The left and right side walls of the slot 20 are also provided with slots, the rear end of which forms an abutment surface. A positioning block 44 is provided on the socket spring 3, which is engaged in the corresponding slot. A notch 45 is provided on the upper or lower surface of the positioning block 44. A socket barb 13 is provided on the surface of the positioning block 44. The surface of the positioning block 44 where the socket barb 13 is located is opposite to the surface where the notch 45 is located. The rear end of the socket barb 13 is higher than the front end, and the rear end face of the socket barb 13 closest to the abutment surface abuts against the abutment surface. Furthermore, the socket spring 3 also has a third bend 18 and a fourth bend 19. The third bend 18 bends downward, and the fourth bend 19 bends sequentially. The positioning block 44 is located in the second... Between the bent portion 17 and the third bent portion 18, during installation, the socket spring 3 is inserted forward from the tail of the socket base 2, and the positioning block 44 is locked in the corresponding slot. When the socket barb 13 contacts the slot, the socket barb 13 is squeezed. Due to the suspended notch 45, space is provided for the compression deformation of the socket barb 13. That is to say, a slight elastic deformation will occur at the suspended notch 45. Therefore, under the action of this elastic restoring force, the socket barb 13 can abut against the groove wall of the slot, thereby ensuring the reliability of the installation of the socket spring 3 and the socket base 2. In this embodiment, the installation method of the plug spring 25 and the plug base 22 is basically the same as the installation method of the socket spring 3 and the socket base 2. That is, a slot 20 and a slot are provided in the plug base 22, such as Figure 13As shown, the plug spring 25 also has a positioning block 44, which has barbs and a hanging notch 45, and the barbs on the plug spring 25 are plug barbs 43.

[0021] In this embodiment, as Figure 6 and Figure 7 As shown, a positioning base 4 is also installed at the rear end of the socket base 2. The spring between the third bend 18 and the fourth bend 19 of the lower row of socket springs 3 is in contact with the front end face of the positioning base 4. The spring between the third bend 18 and the fourth bend 19 of the upper row of socket springs 3 is in contact with the front end face of the positioning base 4. In this embodiment, the included angle between the two ends of the third bend 18 is a right angle. By using the positioning reference, the stability of the right angle at the third bend 18 can be ensured, which also ensures the perpendicularity of the upper and lower rows of socket springs 3 at the third bend 18.

[0022] In this embodiment, as Figure 8 As shown, the first bend 16 is the contact part of the spring, while the second bend 17 and the third bend 18 are the parts where the spring and the socket base 2 fit together. The fourth bend 19 is the soldering part. To further improve the holding force between the socket spring 3 and the socket base 2, the socket spring 3 between the second bend 17 and the third bend 18 has two sets of socket barbs 13.

[0023] In this embodiment, as Figure 7 As shown, the top of the positioning base 4 is provided with a positioning post 14, and the rear end of the socket base 2 is provided with a notch for placing the positioning base 4. The rear end of the socket base 2 is provided with a positioning hole that cooperates with the positioning post 14. During installation, the positioning base 4 can be installed by cooperating with the positioning post 14 and the positioning hole. Of course, the bottom of the positioning hole has a notch that facilitates the insertion of the positioning post 14. The curvature of the notch is a minor arc. Therefore, after the positioning base 4 and the socket base 2 are installed, the positioning base 4 and the socket base 2 can only be separated by removing the positioning hole. Furthermore, the positioning post 14 extends backward and protrudes from the positioning hole. The tail gasket 5 is provided with a through hole that cooperates with the positioning post 14. The tail gasket 5 is installed at the tail of the socket housing 1, and the positioning post 14 passes through the corresponding through hole.

[0024] In this embodiment, as Figure 2 As shown, the socket housing 1 is T-shaped, and a mounting platform 6 is provided on the outer side of the plug-in end of the housing. The side wall of the mounting platform 6 near the plug-in end is an inclined wall, as shown in the figure. Figure 5As shown, the socket base 2 is a four-segment T-shape. The socket housing 1 has a mating cavity at the mating end. One segment of the socket base 2 is located in the mating cavity. The tail of the socket housing 1 has an installation notch 35 from top to bottom. The third and fourth segments of the socket base 2 fit with the installation notch 35, and the tops of the third and fourth segments of the socket base 2 are flush with the socket housing 1. Furthermore, the tail of the socket housing 1 also has a guide hole 7 from top to bottom. The bottom of the tail of the socket housing 1 also has a protruding positioning pin 8, which is located on one side of the guide hole 7.

[0025] In this embodiment, as Figure 9 As shown, the plug base 22 has a mating groove at the mating end. The fifth bend 41 and the sixth bend 42 are both located in the mating groove. A clearance groove 24 is provided on the opposite surface of the mating groove. After the plug spring 25 is squeezed, the fifth bend 41 can enter the corresponding clearance groove 24.

[0026] In this embodiment, as Figure 12 As shown, the locking mechanism 27 includes a latch 36, a groove is formed on the latch 36 along the insertion direction, and a hook 33 is formed on the side of the latch 36 near the insertion end. An inwardly protruding rotating part is provided in the middle of the upper and lower side walls of the latch 36, and a rotating hole is provided on the rotating part. Mounting notches 35 are provided on the left and right side walls of the plug housing 21. Pin holes are provided on the upper and lower side walls of the mounting notches 35. A pin 31 passes through the pin hole and passes through the corresponding rotating hole. A window 37 is provided on the outer side wall of the latch 36. An inwardly inclined support spring 34 is provided at the window 37, and the support spring 34 contacts the outer side wall of the plug housing 21 near the mounting notch 35. The end of the latch 36 away from the insertion end of the plug housing 21 is provided with an outwardly opening latch handle 32. During the insertion of the socket 100 and the plug 200, when the hook 33 contacts the inclined wall of the mounting platform 6, the hook 33 will open outward under the guidance of the inclined wall, thereby causing the latch 36 to open outward. At this time, the support spring 34 is squeezed by the outer wall of the plug housing 21, thereby causing the support spring 34 to generate an elastic restoring force. When the hook 33 passes the inclined wall and the mounting platform 6 is located in the cavity where the hook 33 is located, the latch 36 will reset under the action of the elastic restoring force of the support spring 34, thereby allowing the hook 33 to engage with the mounting platform 6. Of course, during insertion, the latch handle 32 can also be manually squeezed to open the hook 33 of the latch 36, thereby facilitating the insertion of the socket 100 and the plug 200. During unlocking, the latch handle 32 needs to be manually squeezed to open the hook 33 of the latch 36, thereby releasing the socket 100.

[0027] In this embodiment, as Figure 9 As shown, the mating end of the plug housing 21 is provided with an anti-reverse protrusion 23, such as... Figure 3As shown, the inner wall of the mating cavity has an anti-reverse groove 9 to prevent reverse insertion. After the socket 100 and plug 200 are mated, the anti-reverse protrusion 23 cooperates with the anti-reverse groove 9. Therefore, when the socket 100 and plug 200 are mated, they can only be mated together after the anti-reverse protrusion 23 and the anti-reverse groove 9 are aligned, thus preventing the socket 100 and plug 200 from being mated in reverse.

[0028] In this embodiment, as Figure 9 As shown, a sealing ring 28 is fitted on the mating end of the plug housing 21. The sealing ring 28 can effectively prevent moisture and dust from entering the connector, ensuring the stable operation of the connector and improving the reliability of the connector.

[0029] In this embodiment, as Figure 9 As shown, a guardrail 26 is also installed on the side of the plug housing 21 away from the mating end by a locking screw, and the guardrail 26 is used to fix the cable.

[0030] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A plug for a micro rectangular connector, comprising a plug housing, a plug base assembled within the plug housing, and two rows of upper and lower plug springs disposed within the plug base, the upper and lower rows of plug springs being arranged opposite to each other, characterized in that: The plug housing is also provided with a locking mechanism on the two outer side walls. The plug spring has a fifth bend and a sixth bend at the insertion end, and the bends of the fifth bend and the sixth bend are opposite in direction.

2. The plug for a micro rectangular connector according to claim 1, characterized in that: The plug base has a mating groove at the mating end. The fifth bend and the sixth bend are both located in the mating groove. A clearance groove is provided on the opposite surface of the mating groove. When the plug spring is compressed, the fifth bend can enter the corresponding clearance groove.

3. A plug for a micro rectangular connector according to claim 2, characterized in that: The locking mechanism includes a rotating component with a groove along the insertion direction and a hook on the side of the rotating component near the insertion end. The rotating component has an inwardly protruding rotating portion in the middle of its upper and lower sidewalls, and a rotating hole is provided on the rotating portion. The plug housing has mounting notches on its left and right sidewalls, and pin holes are provided on the upper and lower sidewalls of the mounting notches. A pin passes through the pin hole and through the corresponding rotating hole. A window is provided on the outer sidewall of the rotating component, and an inwardly inclined support spring is provided at the window, contacting the outer sidewall of the plug housing near the mounting notch.

4. A plug for a micro rectangular connector according to claim 3, characterized in that: The rotating part has an outwardly extending locking handle at the end away from the plug housing's insertion end.

5. A plug for a micro rectangular connector according to any one of claims 1 to 4, characterized in that: The plug housing has an anti-reverse protrusion at the insertion end.

6. A plug for a micro rectangular connector according to any one of claims 1 to 4, characterized in that: A sealing ring is fitted onto the mating end of the plug housing.

7. A plug for a micro rectangular connector according to any one of claims 1 to 4, characterized in that: A guardrail is also installed on the side of the plug housing away from the mating end by a locking screw.

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