A type of auxiliary circuit connector with two working positions

Abstract

A two-position pin-type auxiliary circuit connector is disclosed. This solves the problems of large size, high cost, and limited circuitry in existing auxiliary circuit connectors. It includes a moving connector and a stationary connector. The moving connector has a first conductive element or a second conductive element, and the stationary connector has a second conductive element or a first conductive element. The first and second conductive elements cooperate to achieve circuit conduction. The moving connector has a clutch mechanism, and it has three positions: a first position where it is moved by a drawer when the clutch is engaged; a second position where the first and second conductive elements are connected; and a third position where the drawer moves independently when the clutch is disengaged. This invention has advantages such as simple structure, convenient assembly, reliable operation, small size, low cost, and long service life.

Description

Technical Field

[0001] This invention relates to a low-voltage switchgear, specifically to a two-position pin-type auxiliary circuit connector. Background Technology

[0002] Low-voltage switchgear is an electrical device. External power lines first enter the main control switch inside the cabinet, then the branch control switches, with each branch circuit configured as needed. Existing low-voltage electrical drawer cabinets typically include a push-pull mechanism inside the drawer to control its operating state. The working state of the switchgear is controlled by moving this mechanism forward or backward from the outside of the drawer. These working states include a completely disconnected state (drawer can be pulled out), a testing state (test position) for circuit detection, and a fully connected state (operating position). Low-voltage switchgear usually includes a main circuit and an auxiliary circuit. When the circuit needs to be connected, the auxiliary circuit must be connected before the main circuit; when disconnected, the auxiliary circuit must be disconnected after the main circuit. The moving contacts are driven by and linked to the drawer. Therefore, the contact pieces of the moving contacts in existing auxiliary circuits are usually very long to ensure that the auxiliary circuit is connected before and disconnected after the main circuit. (See Appendix) Figure 1 Furthermore, each contact piece has a conductive piece, which also needs to be very long before being connected via terminals. Therefore, the existing auxiliary circuit contact pieces have the problem of being long and bulky. Consequently, the conductive pieces are also long, requiring more material and resulting in high product manufacturing costs. Moreover, due to the limited installation space and the large size of the contact pieces in the existing moving plug, the number of contact pieces in the auxiliary circuit is small, resulting in fewer circuits that can be formed and difficulties in expansion. Summary of the Invention

[0003] To address the problems of large size, high cost, and few circuits in existing auxiliary circuit connectors in the background art, the present invention provides a two-position pin-type auxiliary circuit connector.

[0004] The technical solution of the present invention is: a two-position pin-type auxiliary circuit connector, including a moving connector and a stationary connector. The moving connector is provided with a first conductive element or a second conductive element, and the stationary connector is provided with a second conductive element or a first conductive element. The first conductive element and the second conductive element cooperate with each other to realize the conduction of the circuit. The moving connector is provided with a clutch device. The moving connector has a first position in which the drawer drives its movement when the clutch device is engaged, a second position in which the first conductive element and the second conductive element are connected, and a third position in which the drawer moves independently when the clutch device is disengaged.

[0005] As a further improvement of the present invention, the clutch device includes an interlocking member and a mounting bracket for fixing, the interlocking member having a first position in which it engages with the mounting bracket so that the mounting bracket is linked with the moving plug and a second position in which it disengages so that the mounting bracket slides relative to the moving plug.

[0006] As a further improvement of the present invention, it also includes an unlocking component, wherein the interlocking component is hinged to the moving plug, and the interlocking component includes a driving part, a hinge part and an interlocking part, wherein the unlocking component cooperates with the driving part to cause the interlocking component to rotate around the hinge part so that the interlocking component is unlocked to the second position.

[0007] As a further improvement of the present invention, the unlocking component is provided on the cabinet or the static plug, and there are two interlocking components, each hinged to the moving plug. The unlocking component is inserted between the two interlocking components and pushes the driving part to unlock the interlocking components.

[0008] As a further improvement of the present invention, the mounting bracket is provided with a sliding groove and a locking groove. When the interlocking member is in the first position, the interlocking part is located in the locking groove, and when the interlocking member is in the second position, the interlocking part is located in the sliding groove, so that the mounting bracket and the interlocking member slide and cooperate.

[0009] As a further improvement of the present invention, the moving plug is provided with a locking foot, and the stationary plug is provided with a locking hole. When the moving plug is in the second position, the locking foot is inserted into the locking hole and the moving plug and the stationary plug are locked together.

[0010] As a further improvement of the present invention, the locking foot is provided on the cover plate, the cover plate is placed outside the interlocking member, the moving plug has an edge, and the mounting bracket is set on the outside of the cover plate and vertically limits the edge of the moving plug.

[0011] As a further improvement of the present invention, the moving plug is provided with a first socket, the stationary plug is provided with a third socket, the first socket is provided with a first conductive element or a second conductive element, the third socket is provided with a second conductive element or a first conductive element, and the first conductive element and / or the second conductive element is provided with a limiting plate and / or a limiting step.

[0012] As a further improvement of the present invention, there are multiple first sockets arranged side by side, and the movable plug is provided with multiple second sockets, the diameter of the second sockets being larger than the diameter of the first sockets.

[0013] As a further improvement of the present invention, it also includes a first guide post, the moving insert is provided with a second guide post, the stationary insert is provided with a first guide hole for the first guide post to pass through and a second guide hole adapted to the second guide post, and the length of the first guide post is longer than the length of the second guide post.

[0014] The beneficial effects of this invention are that the inclusion of a clutch device allows the moving component to engage and disengage from the drawer during movement, enabling the drawer to move independently. This reduces the stroke of the moving component, decreases the length and material usage of the conductive sheet, and lowers the product manufacturing cost. This invention also boasts advantages such as simple structure, convenient assembly, reliable operation, small size, and long service life. Attached Figure Description

[0015] Appendix Figure 1 This is a schematic diagram of the exploded structure of an existing auxiliary contact.

[0016] Appendix Figure 2 This is a schematic diagram of the structure of an embodiment of the present invention.

[0017] Appendix Figure 3 For the appendix Figure 1 A schematic diagram of the structure of the moving plug-in 1 and the stationary plug-in 2.

[0018] Appendix Figure 4 For the appendix Figure 3 A schematic diagram of the structure of the Zhongdong plug-in 1.

[0019] Appendix Figure 5 For the appendix Figure 4 A schematic diagram of the explosion structure.

[0020] Appendix Figure 6 For the appendix Figure 4 A cross-sectional structural diagram.

[0021] Appendix Figure 7 For the appendix Figure 4 A schematic diagram of the structure of the central locking component 51.

[0022] Appendix Figure 8 For the appendix Figure 3 Exploded view of the structure of Zhongjing Plug-in 2.

[0023] In the diagram, 1. Moving insert; 11. Clip; 12. Cover plate; 13. Edge; 14. First insertion hole; 15. Second insertion hole; 2. Stationary insert; 21. Clip hole; 22. Third insertion hole; 3. First conductive component; 31. Limiting plate; 32. Limiting step; 4. Second conductive component; 5. Clutch device; 51. Interlocking component; 511. Drive unit; 512. Hinge unit; 513. Interlocking unit; 52. Mounting bracket; 521. Slide groove; 522. Slot; 71. First guide post; 72. First guide hole; 81. Second guide post; 82. Second guide hole; 9. Drawer; 10. Cabinet body. Detailed Implementation

[0024] The embodiments of the present invention will be further described below with reference to the accompanying drawings:

[0025] Depend on Figure 2 Combination Figure 3-8 As shown, a two-position pin-type auxiliary circuit connector includes a moving plug 1 and a stationary plug 2. The moving plug 1 is provided with a first conductive element 3 or a second conductive element 4, and the stationary plug 2 is provided with a second conductive element 4 or a first conductive element 3. The first conductive element 3 and the second conductive element 4 cooperate to achieve circuit conduction. The moving plug 1 is provided with a clutch device 5. The moving plug 1 has a first position in which it is driven by a drawer 9 when the clutch device 5 is engaged, a second position in which the first conductive element 3 and the second conductive element 4 are connected, and a third position in which the drawer 9 moves independently when the clutch device 5 is disengaged. The beneficial effect of this invention is that the clutch device allows the moving plug to engage and disengage with the drawer during movement, allowing the drawer to move independently, thereby reducing the movement stroke of the moving plug, reducing the length of the conductive sheet and the amount of material used, and resulting in low product manufacturing costs. This invention also has the advantages of simple structure, convenient assembly, reliable operation, small size, and long service life. Specifically, when the circuit needs to be connected, pushing the drawer causes the mounting bracket fixed to the drawer to move synchronously with the moving insert via an interlocking mechanism. The first guide post first inserts into the first guide hole for guidance, and then the second guide post inserts into the second guide hole for guidance, ensuring that the first conductive element can reliably cooperate with the second conductive element to achieve auxiliary circuit conduction. At this time, the unlocking mechanism pushes the driving part of the interlocking mechanism, causing the interlocking mechanism to unlock and engage. The locking pin inserts into the locking hole, causing the moving insert and stationary insert to engage. When the drawer is pushed further, the interlocking part of the interlocking mechanism slides in the groove, meaning that the moving insert remains stationary, and the first and second conductive elements are in a connected state. The continued movement of the drawer cannot drive the moving insert to move; this is mainly to enable the main circuit conduction. When the drawer is pulled out, the locking feet provide resistance to hold the moving insert in place, and the interlocking part of the interlocking component continues to slide within the groove. The drawer movement disconnects the main circuit. After the main circuit is disconnected, the drawer is pulled out further. At this time, the interlocking part is driven by the inner wall of the groove to pull the moving insert, causing the locking feet to disengage from the locking holes. Continuing to pull the drawer out further separates the first and second conductive components, disconnecting the auxiliary circuit. This achieves the following: when the circuit needs to be connected, the auxiliary circuit must be connected before the main circuit; when disconnected, the auxiliary circuit must be disconnected after the main circuit. The moving insert is driven by the drawer and is linked to the drawer. In this invention, the moving insert has a first position linked to the drawer, a second position connecting the first and second conductive components, and a third position where relative movement occurs between the insert and the drawer (the drawer moves relative to the moving insert, and the moving insert maintains its position). The first conductive component does not need to be very long to achieve the product's conduction and disconnection. More specifically, the first conductive component is a pin-type structure, and the second conductive component is a tube adapted to the pin. This greatly simplifies the product structure, reduces the product size, and allows for multiple expansions. Previously, it could only connect to about 10 sets of circuits, but now it can connect to 20-30 sets, making it more suitable for the increasing demand for auxiliary circuits.

[0026] The clutch device 5 includes an interlocking member 51 and a mounting bracket 52 for fixing. The interlocking member 51 has a first position where it engages with the mounting bracket 52, causing the mounting bracket 52 to move in conjunction with the moving insert 1, and a second position where it disengages, allowing the mounting bracket 52 to slide relative to the moving insert 1. This structure enables the linkage and relative movement between the moving insert and the drawer through the cooperation of the interlocking member and the mounting bracket. This allows the auxiliary circuit to be turned on before the main circuit and then disconnected after the main circuit without increasing the length of the conductive sheet, thus reducing production costs.

[0027] The present invention also includes an unlocking component. The interlocking component 51 is hinged to the moving insert 1. The interlocking component 51 includes a driving part 511, a hinge part 512, and an interlocking part 513. The unlocking component, by cooperating with the driving part 511, causes the interlocking component 51 to rotate around the hinge part 512, thereby unlocking the interlocking component 51 to a second position. The unlocking component makes unlocking the interlocking component convenient and reliable. Specifically, the unlocking component is provided on the cabinet 10 or the stationary insert 2. There are two interlocking components 51, each hinged to the moving insert 1. The unlocking component is inserted between the two interlocking components 51 and pushes the driving part 511 to unlock the interlocking component 51. More specifically, the driving part is arc-shaped or spherical. More specifically, the unlocking component is triangular, cylindrical, or frustum-shaped. More specifically, the area of ​​the unlocking component near the interlocking plate is smaller than the area of ​​the original interlocking plate. This structure makes the unlocking component strong and not easily damaged. It can be quickly and easily inserted into the interlocking component to unlock it, without interference or jamming, making the product easy and reliable to unlock.

[0028] The unlocking component is located on the cabinet 10 or the stationary insert 2. There are two interlocking components 51, each hinged to the moving insert 1. The unlocking component is inserted between the two interlocking components 51 and pushes the driving part 511 to unlock the interlocking components 51. This connection structure ensures smooth operation of the interlocking components, reliably drives the moving insert, and makes unlocking convenient and reliable.

[0029] The mounting bracket 52 is provided with a sliding groove 521 and a locking slot 522. The interlocking part 513 is located in the locking slot 522 when the interlocking member 51 is in the first position, and in the sliding groove 521 when the interlocking member 51 is in the second position, allowing the mounting bracket 52 to slide and engage with the interlocking member 51. Specifically, the mounting bracket is provided with a guide screw and a guide groove. The guide screw is located in the guide groove and fixed to the moving contact. This structure guides the movement of the mounting bracket. The locking slot allows the drawer to reliably drive the mounting bracket.

[0030] The moving insert 1 is provided with a locking pin 11, and the stationary insert 2 is provided with a locking hole 21. When the moving insert 1 is in the second position, the locking pin 11 is inserted into the locking hole 21, causing the moving insert 1 and the stationary insert 2 to engage. Specifically, the locking pin is arc-shaped, and there are two interconnected locking holes. The locking pin engaging with the locking hole ensures a reliable connection between the moving contact and the stationary insert, preventing the conductive parts from disengaging and providing a locking force when the drawer is pulled out, preventing the moving insert from being immediately moved. Of course, the arc shape also allows for reliable disengagement when the interlocking component provides pulling force to the moving insert, making it convenient and reliable to disconnect the auxiliary circuit.

[0031] The locking foot 11 is mounted on the cover plate 12, which covers the interlocking member 51. The moving insert 1 has an edge 13, and the mounting bracket 52 is located on the outside of the cover plate 12 and is vertically limited by the edge 13 of the moving insert 1. This arrangement guides the movement of the mounting bracket, resulting in a simple product structure and good linearity of the mounting bracket's movement.

[0032] The moving plug 1 has a first insertion hole 14, and the stationary plug 2 has a third insertion hole 22. The first insertion hole 14 contains a first conductive element 3 or a second conductive element 4, and the third insertion hole 22 contains a second conductive element 4 or a first conductive element 3. The first conductive element 3 and / or the second conductive element 4 are provided with a limiting plate 31 and / or a limiting step 32. Specifically, the limiting plate and the limiting step can be used together, or only one set can be used to fix the conductive element inside the insertion hole.

[0033] The invention comprises multiple first sockets 14 arranged side-by-side, and the movable plug 1 is provided with multiple second sockets 15, the diameter of which is larger than that of the first sockets 14. The larger diameter of the second sockets in this invention allows the product to accept higher currents, resulting in a wider range of compatibility and easier expansion.

[0034] The invention also includes a first guide post 71, a second guide post 81 on the moving insert 1, and a first guide hole 72 for the first guide post 71 to pass through and a second guide hole 82 adapted to the second guide post 81 on the stationary insert. The length of the first guide post 71 is longer than the length of the second guide post 81. This structure allows the product to move linearly, facilitating the alignment and mating of the first and second conductive components, and making the product's circuit connection convenient and reliable.

[0035] In the description of this invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for 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 the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0036] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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 invention based on the specific circumstances. Furthermore, in the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0037] Please note to all technical personnel: Although the present invention has been described according to the specific embodiments above, the inventive concept of the present invention is not limited to this invention. Any modifications that utilize the inventive concept will be included within the scope of protection of this patent.

Claims

1. A two-position pin-type auxiliary circuit connector, comprising a moving connector (1) and a stationary connector (2), characterized in that... The moving plug (1) is provided with a first conductive element (3) or a second conductive element (4), and the stationary plug (2) is provided with a second conductive element (4) or a first conductive element (3). The first conductive element (3) and the second conductive element (4) cooperate with each other to realize the conduction of the circuit. The moving plug (1) is provided with a clutch device (5). The moving plug (1) has a first position in which it is driven by the drawer (9) when the clutch device (5) is engaged, a second position in which the first conductive element (3) and the second conductive element (4) are connected, and a third position in which the drawer (9) moves independently when the clutch device (5) is disengaged. The clutch device (5) includes an interlocking element (51) and a mounting bracket (52) for fixing on the drawer (9). The interlocking element (51) has a position in which it engages with the mounting bracket (52) so that the mounting bracket (52) and the moving plug (1) are connected. The first position and separation of the linkage cause the mounting bracket (52) to slide relative to the moving plug (1) to a second position; it also includes an unlocking component, the interlocking component (51) is hinged to the moving plug (1), the interlocking component (51) includes a driving part (511), a hinge part (512) and an interlocking part (513), the unlocking component cooperates with the driving part (511) to make the interlocking component (51) rotate around the hinge part (512) so that the interlocking component (51) is unlocked to the second position; the mounting bracket (52) is provided with a sliding groove (521) and a slot (522), the interlocking part (513) is located in the slot (522) when the interlocking component (51) is in the first position, and the interlocking part (513) is located in the sliding groove (521) when the interlocking component (51) is in the second position, so that the mounting bracket (52) and the interlocking component (51) slide and cooperate.

2. A connector with a two-position pin-type auxiliary circuit as described in claim 1, characterized in that... The unlocking component is located on the cabinet (10) or the static plug (2). There are two interlocking components (51) and they are respectively hinged to the moving plug (1). The unlocking component is inserted between the two interlocking components (51) and pushes the driving part (511) to unlock the interlocking component (51).

3. A two-position pin-type auxiliary circuit connector according to claim 1, characterized in that... The moving plug (1) is provided with a locking foot (11), and the stationary plug (2) is provided with a locking hole (21). When the moving plug (1) is in the second position, the locking foot (11) is inserted into the locking hole (21) and the moving plug (1) and the stationary plug (2) are locked together.

4. A two-position pin-type auxiliary circuit connector according to claim 3, characterized in that... The locking foot (11) is located on the cover plate (12), the cover plate (12) covers the interlocking member (51), the moving plug (1) is provided with an edge (13), the mounting bracket (52) is located on the outside of the cover plate (12) and is vertically limited by the edge (13) of the moving plug (1).

5. A two-position pin-type auxiliary circuit connector according to claim 1, characterized in that... The moving plug (1) is provided with a first socket (14), the stationary plug (2) is provided with a third socket (22), the first socket (14) is provided with a first conductive element (3) or a second conductive element (4), the third socket (22) is provided with a second conductive element (4) or a first conductive element (3), and the first conductive element (3) and / or the second conductive element (4) are provided with a limiting plate (31) and / or a limiting step (32).

6. A two-position pin-type auxiliary circuit connector according to claim 5, characterized in that... There are multiple first sockets (14), and the first sockets (14) are arranged side by side. The moving plug (1) is provided with multiple second sockets (15), and the diameter of the second sockets (15) is larger than the diameter of the first sockets (14).

7. A two-position pin-type auxiliary circuit connector according to claim 1, characterized in that... It also includes a first guide post (71), the moving insert (1) is provided with a second guide post (81), the stationary insert is provided with a first guide hole (72) through which the first guide post (71) passes and a second guide hole (82) adapted to the second guide post (81), the length of the first guide post (71) is longer than the length of the second guide post (81).

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