Wire-to-board rapid plugging connector with double fool-proof protection structures

Abstract

The invention discloses a wire-to-board quick plugging connector with a dual fool-proof protection structure, and relates to the technical field of connectors, the wire-to-board quick plugging connector comprises a butt joint shell, an upper butt joint groove is formed in the upper side edge end of the interior of the butt joint shell, and a lower butt joint groove is formed in the lower side edge end of the interior of the butt joint shell; and the side of the butt joint device body is fixedly connected with an upper butt joint block and a lower butt joint block. According to the wire-to-board rapid plugging connector with the dual fool-proof protection structure, primary fool-proof processing can be performed on butt joint and insertion of the butt joint device body through the arrangement of the primary fool-proof mechanism, so that the possibility that the connector is burnt out due to continuous butt joint due to the fact that the butt joint directions of the butt joint device body are opposite is reduced, and due to the fact that the length of the upper butt joint groove and the length of the lower butt joint groove are different, the butt joint effect is good. When the lower butt joint block is in butt joint with the interior of the upper butt joint groove, the short upper butt joint groove abuts against the lower butt joint block, so that continuous movement of the lower butt joint block is limited, and continuous wrong butt joint operation of the butt joint device body is hindered.

Description

Technical Field

[0001] The invention relates to the technical field of connectors, in particular to a wire-to-board quick plug connector with a double fool-proof protection structure. Background Art

[0002] Wire-to-board connectors mainly use pins and sockets to connect wires to circuit boards. Pins are metal pins fixed to the circuit board, while sockets are metal slots fixed to the wires. When the pin is inserted into the socket, the metal pin is in close contact with the metal slot, thus establishing an electrical connection. This connection method is simple, reliable, and easy to install and maintain; When the user inserts the cable end, inserting it in the wrong direction may easily cause contact or burn-in.

[0003] In order to overcome the above-mentioned defects, prior art 1 (publication number: CN110165469B, Chinese patent with publication date of 2022-04-01) is a fool-proof connector with a USB interface, which is used for signal transmission and power transmission of small electronic products, comprising: a male connector, including a core connector, one end of the core connector is provided with a USB female socket for connecting to a USB; a female socket connector, including a female socket body and a female socket electronic circuit board, a metal shrapnel is provided in the female socket body, the metal shrapnel is respectively connected to the core connector and the female socket electronic circuit board, and an fool-proof component, the fool-proof component includes a male end component and a female end component, the male end component is arranged on the male connector, and the female end component is arranged on the female connector, and is complementary in shape to the male end component.

[0004] There is also prior art 2 (publication number: CN106267545B, Chinese patent published on 2019-05-17) a fool-proof closed type joint, including a first connector and a second connector. The first connector includes a first and a second end, the first end forms a groove and a first ratchet, the inner wall of the groove is surrounded by a slide rail, and the second end is connected to the first component. The second connector includes a first and a second end and a large diameter section, the first end forms a second ratchet and is arranged in the groove, the first ratchet selectively engages with the second ratchet, so that the first connector drives the second connector to rotate unidirectionally in the first direction, so that the second end of the second connector is screwed to the second component, the large diameter section is surrounded by a slide groove, the first connector rotates in the first direction or the second connector rotates in the opposite direction of the first direction, so that the second ratchet is broken by the first ratchet, so that the second connector rotates 360 degrees relative to the first connector through the slide rail and the slide groove.

[0005] And prior art 3 (publication number: CN211265867U, Chinese patent with publication date of 2020-08-14) a connector assembly with an anti-foolproof function, comprising: a board-end connector, the board-end connector comprising a board-end body and a board-end shell, the board-end shell is sleeved outside the board-end body, and a plug-in hole is formed between the board-end body; a wire-end connector, the wire-end connector is plugged into the top of the board-end connector, comprising a wire-end body, the wire-end body comprising a plug-in wall, a pair of first side walls and a second side wall, the plug-in wall is parallel to the second side wall and connected between the pair of first side walls. A connector assembly with an anti-foolproof function, which prevents the wire-end connector from being plugged in reverse when being plugged into the board-end connector by cooperating with the second side wall and a pair of first side walls, and has an anti-foolproof function, and the second side wall is connected to the first side wall to strengthen the structural strength of the wire-end body. Although the existing technologies 1, 2 and 3 can perform fool-proofing on the connectors to prevent the front and back confusion when the wire ends are inserted, their fool-proofing structures are relatively simple. If the user does not realize the insertion error and forcibly assembles the wire ends, data transmission will be impossible and the connector will also be damaged.

[0006] Therefore, we propose a wire-to-board quick plug connector with a double fool-proof protection structure to solve the above-mentioned problems. Summary of the invention

[0007] The object of the present invention is to provide a wire-to-board quick plug connector with a double fool-proof protection structure to solve the problem that the fool-proof structure of the current market is relatively simple as mentioned in the above background technology. If the user does not realize the insertion error and forcibly assembles the wire ends, data cannot be transmitted and the connector will also be damaged.

[0008] To achieve the above-mentioned object, the present invention provides the following technical solution: a wire-to-board quick plug connector with a double foolproof protection structure, comprising a docking shell, an upper docking groove is provided at an inner upper side end of the docking shell, a lower docking groove is provided at an inner lower side end of the docking shell, a docking body is provided inside the docking shell, and an upper docking block and a lower docking block are fixedly connected to the sides of the docking body respectively; A top groove is provided on the top of the docking shell, and a primary fool-proofing mechanism for preliminary fool-proofing is provided between the inside of the top groove and the upper docking groove, and a secondary fool-proofing mechanism is provided between the inner side and the lower surface of the docking shell.

[0009] Preferably, the one-time fool-proof mechanism comprises a rotating disk, which is nested and connected to the inner side of the docking shell, and a torsion spring is fixedly connected between the inner side of the rotating disk and the docking shell, and a rotating rod is hingedly connected to the outer side of the rotating disk, and a connecting block is fixedly connected to the outer side of the end of the upper rotating rod, and the connecting block is nested and connected inside the upper docking groove, and a protrusion is fixedly connected to the upper surface of the upper rotating rod; A connecting shaft is nested and connected at the lower side of the top groove, an adjusting disk is fixedly connected to the outer side of the connecting shaft, and a rotating pressing block is fixedly connected to the connecting shaft.

[0010] Preferably, the turntable forms a rotating structure with the docking shell through a turn rod, and the turntable forms an elastic structure with the docking shell through a torsion spring, and two groups of turn rods are arranged above and below the turntable.

[0011] Preferably, grooves are evenly opened on the outer side of the adjustment disk, and the upper end of the protrusion is nested and connected inside the groove of the adjustment disk. The connecting shaft forms a rotating structure with the docking shell through the adjustment disk, and the width of the top groove is greater than the maximum height of the rotating pressure block.

[0012] Preferably, the secondary foolproofing mechanism comprises an adjustment slot, the adjustment slot is provided on the inner side of the docking shell, and a limit rod is fixedly connected to the inner side of the adjustment slot, and a movable plate is nested and connected to the outer side of the limit rod, and the side of the movable plate and the other end of the lower rotating rod are hinged to each other, and the lower end of the movable plate is fixedly connected to the extrusion rod; The interior of the docking shell is nested with a driving rod, and the upper end of the driving rod is fixedly connected to a tilting block, and the lower end of the driving rod is fixedly connected to a placement plate, and at the same time, the upper surface of the placement plate is nested with a limited baffle plate, and a reset spring is fixedly connected between the placement plate and the docking shell, and the reset spring is wound around the side of the driving rod.

[0013] Preferably, the movable plate forms a sliding structure through a rotating rod and a limiting rod, and the end side of the extrusion rod is located on one side of the inclined edge of the inclined block.

[0014] Preferably, the driving rod forms a sliding structure with the docking shell through a tilting block, and the placement plate forms an elastic structure with the docking shell through a reset spring.

[0015] Compared with the prior art, the present invention has the following beneficial effects: By setting a primary foolproofing mechanism, a preliminary foolproofing treatment can be performed on the docking insertion of the docking body, thereby reducing the possibility of the connector being burned due to continuous docking of the docking body in the opposite direction. At the same time, the secondary foolproofing mechanism is further used to prevent the docking body from being continuously docked with the wrong docking direction. When the user makes a docking error, the lower docking block will dock into the upper docking groove, and the upper docking block will dock into the lower docking groove. Due to the different lengths of the upper and lower docking grooves, when the lower docking block docks into the upper docking groove, the shorter upper docking groove contacts the lower docking block, thereby limiting the continuous movement of the lower docking block and preventing the continuous incorrect docking operation of the docking device body. When the user makes a docking error, the lower docking block will dock into the upper docking groove. At this time, the end side of the lower docking block will contact the connecting block, thereby squeezing and driving the connecting block to slide along the upper docking groove. At this time, the connecting block will synchronously drive the rotating rod to move. At this time, the protrusion arranged on the upper side of the rotating rod is nested and connected to the groove opened on the side of the adjusting disk, thereby driving the adjusting disk to rotate. The connecting shaft will rotate synchronously under the driving action of the adjusting disk, and drive the rotating pressing block to rotate, thereby contacting the docking device body through the top groove, thereby prompting the user that the docking device body is docked in the wrong direction; When the upper rotating rod moves, it will synchronously drive the rotating disk to rotate at a small angle. At this time, the rotating disk will synchronously drive the lower rotating rod to rotate. When the lower rotating rod rotates, it will pull the moving plate, so that the moving plate moves along the limit rod. When the limit rod moves, it will drive the extrusion rod to conflict with the lower side of the tilting block, so that the tilting block drives the driving rod to move upward. At this time, the driving rod will drive the driving rod to move upward and extend through the placement plate, thereby further preventing the insertion of the docking device body and reducing the occurrence of equipment burning due to docking errors. When the user takes out the incorrectly docked docking device body, the connecting block is not resisted, and the turntable is reset under the drive of the elastic force of the torsion spring, thereby driving the rotating rod to reset. At this time, the rotating pressure block rotates outward and expands, and at the same time, the placing plate moves downward and resets under the drive of the elastic force of the reset spring. At this time, the driving rod and the rotating pressure block do not block the docking device body, and the user can correctly dock and insert the docking device body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the docking housing of the present invention; Figure 2 It is a schematic diagram of a three-dimensional cross-sectional structure of the present invention; Figure 3 This is a schematic diagram of the three-dimensional structure of the placement plate of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the turntable of the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the driving rod of the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure of the limiting rod of the present invention; Figure 7 It is a schematic diagram of the raised three-dimensional structure of the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure of the lower docking block of the present invention.

[0017] In the figure: 1. docking shell; 2. docking device body; 3. upper docking groove; 4. lower docking groove; 5. upper docking block; 6. lower docking block; 7. top groove; 8. rotating pressure block; 9. torsion spring; 10. protrusion; 11. connecting shaft; 12. turntable; 13. adjusting groove; 14. limit baffle; 15. placement plate; 16. driving rod; 17. moving plate; 18. extrusion rod; 19. tilting block; 20. reset spring; 21. limit rod; 22. rotating rod; 23. connecting block; 24. adjusting disk. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] Embodiment 1: Figure 1 , Figure 2 , Figure 3 and Figure 8 The technical solution shown in the figure, the present invention provides the following technical solution: a wire-to-board quick plug connector with a double foolproof protection structure, discloses a docking shell 1, and the docking shell 1 can be docked with a docking device body 2: The docking shell 1 includes an upper docking groove 3 at the inner upper side end of the docking shell 1, and a lower docking groove 4 at the inner lower side end of the docking shell 1, and a docking device body 2 is arranged inside the docking shell 1, and the sides of the docking device body 2 are respectively fixedly connected with an upper docking block 5 and a lower docking block 6, a top groove 7 is arranged on the top of the docking shell 1, and a primary fool-proofing mechanism for preliminary fool-proofing is arranged between the inside of the top groove 7 and the upper docking groove 3, and a secondary fool-proofing mechanism is arranged between the inner side and the lower surface of the docking shell 1.

[0020] The length of the upper docking groove 3 is smaller than that of the lower docking groove 4 , and the length of the upper docking block 5 is smaller than that of the lower docking block 6 .

[0021] By setting a primary foolproof mechanism, the docking and insertion of the docking body 2 can be preliminarily foolproofed, thereby reducing the possibility of the docking body 2 being continuously docked in the opposite direction and causing the connector to burn out. At the same time, the secondary foolproof mechanism is further used to prevent the docking body 2 that is incorrectly docked from continuing to dock. When the user takes out the docking body 2 that is incorrectly docked, the connecting block 23 is not resisted, and the rotating disk 12 is reset under the elastic force of the torsion spring 9, thereby driving the rotating rod 22 to reset. At this time, the rotating pressing block 8 rotates outward and unfolds, and the placing plate 15 is placed at the same time. Driven by the elastic force of the reset spring 20, it moves downward and resets. At this time, the driving rod 16 and the rotating pressure block 8 do not block the docking device body 2, and the user can correctly dock and insert the docking device body 2. When the user makes a docking mistake, the lower docking block 6 will dock into the upper docking groove 3, and the upper docking block 5 will dock into the lower docking groove 4. Due to the different lengths of the upper docking groove 3 and the lower docking groove 4, when the lower docking block 6 is docked into the upper docking groove 3, the shorter upper docking groove 3 contacts the lower docking block 6, thereby limiting the continuous movement of the lower docking block 6 and hindering the continuous incorrect docking operation of the docking device body 2.

[0022] Embodiment 2: Figure 2 , Figure 4 and Figure 7 The technical solution shown in the figure, the present invention provides the following technical solution: a wire-to-board quick plug connector with a double foolproof protection structure, a one-time foolproof mechanism is disclosed, and the one-time foolproof mechanism can be used to preliminarily prevent the docking direction error of the docking device body 2: The primary foolproof mechanism includes a rotating disk 12, which is nested and connected to the inner side of the docking housing 1, and a torsion spring 9 is fixedly connected between the inner side of the rotating disk 12 and the docking housing 1, and a rotating rod 22 is hinged on the outer side of the rotating disk 12, and a connecting block 23 is fixedly connected to the outer side of the end of the upper rotating rod 22, and the connecting block 23 is nested and connected inside the upper docking groove 3, and a protrusion 10 is fixedly connected to the upper surface of the upper rotating rod 22; A connecting shaft 11 is nested and connected to the lower side of the top groove 7, and an adjusting disk 24 is fixedly connected to the outer side of the connecting shaft 11, and a rotating pressure block 8 is fixedly connected to the connecting shaft 11. The turntable 12 forms a rotating structure with the docking shell 1 through a rotating rod 22, and the turntable 12 forms an elastic structure with the docking shell 1 through a torsion spring 9, and two groups of rotating rods 22 are arranged above and below the turntable 12, grooves are evenly opened on the outer side of the adjusting disk 24, and the upper end of the protrusion 10 is nested and connected to the inside of the groove of the adjusting disk 24, the connecting shaft 11 forms a rotating structure with the docking shell 1 through the adjusting disk 24, and the width of the top groove 7 is greater than the maximum value of the height of the rotating pressure block 8.

[0023] When the user makes a docking error, the lower docking block 6 will dock into the upper docking groove 3. At this time, the end side of the lower docking block 6 will contact the connecting block 23, thereby squeezing and driving the connecting block 23 to slide along the upper docking groove 3. At this time, the connecting block 23 will synchronously drive the rotating rod 22 to move. At this time, the protrusion 10 set on the upper side of the rotating rod 22 is nested and connected to the inside of the groove opened on the side of the adjusting disk 24, thereby driving the adjusting disk 24 to rotate, thereby contacting the docking device body 2 through the top groove 7, thereby prompting the user that the docking device body 2 is docked in the wrong direction.

[0024] Embodiment 3: Figure 3 , Figure 5 and Figure 6 The technical solution shown in the figure, the present invention provides the following technical solution: a wire-to-board quick plug connector with a double foolproof protection structure, a secondary foolproof mechanism is disclosed, and the secondary foolproof mechanism can further prevent the docking direction error of the docking device body 2: The secondary foolproofing mechanism includes an adjustment slot 13, which is provided on the inner side of the docking housing 1, and a limit rod 21 is fixedly connected to the inner side of the adjustment slot 13, and a movable plate 17 is nested and connected to the outer side of the limit rod 21, and the side of the movable plate 17 and the other end of the lower rotating rod 22 are hinged to each other, and the lower end of the movable plate 17 is fixedly connected to the extrusion rod 18; A driving rod 16 is nested and connected inside the docking shell 1, and a tilting block 19 is fixedly connected to the upper end of the driving rod 16, and a placement plate 15 is fixedly connected to the lower end of the driving rod 16. At the same time, a limiting baffle 14 is nested and connected to the upper surface of the placement plate 15. A reset spring 20 is fixedly connected between the placement plate 15 and the docking shell 1, and the reset spring 20 is wound around the side of the driving rod 16. The moving plate 17 forms a sliding structure with the limiting rod 21 through a rotating rod 22. The end side of the extrusion rod 18 is located on the side of the tilting edge of the tilting block 19. The driving rod 16 forms a sliding structure with the docking shell 1 through the tilting block 19, and the placement plate 15 forms an elastic structure with the docking shell 1 through the reset spring 20.

[0025] When the upper rotating rod 22 moves, it will synchronously drive the turntable 12 to rotate at a small angle. At this time, the turntable 12 will synchronously drive the lower rotating rod 22 to rotate. When the lower rotating rod 22 rotates, it will pull the movable plate 17, so that the movable plate 17 moves along the limit rod 21. When the limit rod 21 moves, it will drive the extrusion rod 18 to conflict with the lower side of the tilting block 19, so that the tilting block 19 drives the driving rod 16 to move upward. At this time, the driving rod 16 will drive the driving rod 16 to move upward and extend through the placement plate 15, thereby further preventing the insertion of the docking device body 2 and reducing the occurrence of equipment burning due to docking errors.

[0026] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A wire-to-board quick plug connector with a double foolproof protection structure, comprising a docking shell (1), wherein an upper docking groove (3) is provided at an inner upper side edge of the docking shell (1), and a lower docking groove (4) is provided at an inner lower side edge of the docking shell (1), and a docking device body (2) is dockedly provided inside the docking shell (1), and an upper docking block (5) and a lower docking block (6) are respectively fixedly connected to the sides of the docking device body (2); It is characterized in that The top of the docking shell (1) is provided with a top groove (7), and a primary fool-proofing mechanism capable of performing preliminary fool-proofing processing is provided between the inside of the top groove (7) and the upper docking groove (3), and a secondary fool-proofing mechanism is provided between the inner side and the lower surface of the docking shell (1).

2. A wire-to-board quick-connect connector with a double foolproof protection structure according to claim 1, characterized in that: The one-time fool-proof mechanism comprises a rotating disk (12), the rotating disk (12) being nested and connected to the inner side of the docking shell (1), a torsion spring (9) being fixedly connected between the inner side of the rotating disk (12) and the docking shell (1), and a rotating rod (22) being hinged at the outer side end of the rotating disk (12).

3. A wire-to-board quick-connect connector with a double foolproof protection structure according to claim 2, characterized in that: A connection block (23) is fixedly connected to the outer side of the end of the upper rotating rod (22), and the connection block (23) is nested and connected inside the upper docking groove (3), and a protrusion (10) is fixedly connected to the upper surface of the upper rotating rod (22).

4. A wire-to-board quick-connect connector with a double foolproof protection structure according to claim 2, characterized in that: A connecting shaft (11) is nested and connected to the lower side of the top groove (7), an adjusting disk (24) is fixedly connected to the outer side of the connecting shaft (11), and a rotating pressure block (8) is fixedly connected to the connecting shaft (11).

5. The wire-to-board quick-connect connector with a double foolproof protection structure according to claim 2, characterized in that: The rotating disk (12) forms a rotating structure with the docking shell (1) via a rotating rod (22), and the rotating disk (12) forms an elastic structure with the docking shell (1) via a torsion spring (9), and two groups of rotating rods (22) are arranged above and below the rotating disk (12).

6. A wire-to-board quick-connect connector with a double foolproof protection structure according to claim 4, characterized in that: The outer side of the adjustment disk (24) is evenly provided with grooves, and the upper end of the protrusion (10) is nested and connected inside the groove of the adjustment disk (24), the connecting shaft (11) forms a rotating structure with the docking shell (1) through the adjustment disk (24), and the width of the top groove (7) is greater than the maximum height of the rotating pressure block (8).

7. A wire-to-board quick-connect connector with a double foolproof protection structure according to claim 1, characterized in that: The secondary foolproofing mechanism comprises an adjustment groove (13), the adjustment groove (13) being arranged on the inner side of the docking shell (1), and the inner part of the adjustment groove (13) being fixedly connected to a limit rod (21), and the outer side of the limit rod (21) being nestedly connected to a movable plate (17), while the side of the movable plate (17) and the other end of the lower rotating rod (22) are hinged to each other, and the lower end of the movable plate (17) is fixedly connected to an extrusion rod (18).

8. A wire-to-board quick-connect connector with a double foolproof protection structure according to claim 7, characterized in that: A driving rod (16) is nested and connected inside the docking shell (1), and a tilting block (19) is fixedly connected to the upper end of the driving rod (16), and a placement plate (15) is fixedly connected to the lower end of the driving rod (16), and a limit stop plate (14) is nested and connected to the upper surface of the placement plate (15), and a return spring (20) is fixedly connected between the placement plate (15) and the docking shell (1), and the return spring (20) is wound around the side of the driving rod (16).

9. The wire-to-board quick-connect connector with a double foolproof protection structure according to claim 7, characterized in that: The movable plate (17) forms a sliding structure through a rotating rod (22) and a limiting rod (21), and the end side of the squeezing rod (18) is located on one side of the inclined edge of the inclined block (19).

10. The wire-to-board quick-connect connector with a double foolproof protection structure according to claim 8, characterized in that: The driving rod (16) forms a sliding structure with the docking shell (1) via a tilting block (19), and the placement plate (15) forms an elastic structure with the docking shell (1) via a return spring (20).

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