Intermediate connector for protecting screen cabinet

Abstract

The utility model discloses an intermediate connector used for a protection screen cabinet. The intermediate connector is connected between a relay protection device and a terminal strip of the protection screen cabinet. The middle connector comprises a plug and a socket which is in plug-in fit with the plug; the plug comprises a plug main body and a connecting plug, and a plurality of female pins are arranged in the connecting plug; the socket comprises a socket main body and a plugging groove, the plugging groove is matched with the plugging head in shape, and a plurality of male pins in one-to-one correspondence with the female pins are arranged in the plugging groove; two ends of the plug main body are respectively provided with a pull-assisting wrench; the pull-assisting wrench comprises a handle, one end of the handle is hinged with the plug main body, and a pressing part is arranged at one end of the handle; the two ends of the socket body are respectively provided with a flange extending towards the two ends. And the pressing part of the pulling-assisting wrench applies pressure to the flange while rotating towards one side of the socket along with the handle, so that the socket main body is separated from the plug main body.

Description

Technical Field

[0001] This utility model relates to the field of connectors, specifically to an intermediate connector for protecting a cabinet. Background Technology

[0002] In conventional protection cabinet design, relay protection equipment is directly wired to terminal blocks. Although relay protection equipment from different manufacturers achieves functional uniformity, differences in hardware design and incompatible external interfaces prevent direct replacement of protection devices. Typically, the entire cabinet is replaced for protection upgrades. However, replacing the entire cabinet requires removing the old cabinet and installing the new one. If cabinet disassembly and reassembly, external cable rewiring, and cable laying are involved, the following problems arise: 1. Long power outage time: Complex procedures involving cabinet disassembly and reassembly, and cable rewiring extend the power outage window; 2. High upgrade cost: The combined costs of equipment replacement, labor, and power outage losses remain high; 3. Significant safety risks: Frequent cable disconnection / connection operations can easily lead to secondary system risks such as accidental contact and incorrect wiring.

[0003] To address the aforementioned issues, some protection cabinet designs currently employ a standardized connector added between the relay protection device and the terminal block. This standardization addresses the commonality of protection functions among relay protection devices. For example, patent application CN108258477A discloses a quick-connect signal line connector for power switchgear protection, providing a universal interface that is easy to install and disassemble, and offers high stability. Specifically, the quick-connect signal line connector includes a plug and a socket; the plug and socket are inserted and fitted together. The plug connects to the relay protection device via wiring. In the plug, the wire enters the first slot and connects to the pin. The socket connects to the electrical equipment via wiring, with the wire entering the fourth slot and connecting to the socket sleeve. The plug and socket correspond and are inserted and fitted together. The pin on the plug and the socket sleeve are pressed together, thus achieving circuit continuity. When replacing a relay protection device, only the plug and the standardized wiring method for the socket need to be provided to the manufacturer.

[0004] To ensure reliable electrical performance and connection of plugs and sockets, a certain amount of insertion and removal resistance exists between them, especially for multi-core connectors where the resistance is relatively high. Therefore, a certain amount of force is required to unplug the plug, which not only affects operation but may also affect the stability of the connection between the socket and the protective enclosure. However, existing technologies, including the aforementioned patent applications, have not solved this technical problem. Utility Model Content

[0005] The purpose of this invention is to provide an intermediate connector for protective cabinets, in order to solve the problem that the plug and socket of existing multi-core connectors have relatively large insertion and removal resistance, and that it is difficult to remove the plug.

[0006] To solve the above-mentioned technical problems, this utility model provides an intermediate connector for a protection cabinet. The intermediate connector is connected between the relay protection equipment and the terminal block of the protection cabinet. The intermediate connector includes a plug and a socket that mates with the plug. The plug includes a plug body and a connector, and a plurality of female pins are arranged inside the connector. The socket includes a socket body and a slot, and the slot conforms to the connector. A plurality of male pins are arranged inside the slot that correspond one-to-one with the female pins.

[0007] Each end of the plug body is provided with an auxiliary wrench; the auxiliary wrench includes a handle, one end of which is hinged to the plug body, and one end of the handle is provided with a pressing part; each end of the socket body is provided with a flange extending to both ends; as the handle rotates toward one side of the socket, the pressing part of the auxiliary wrench applies pressure to the flange, causing the plug body to move away from the socket body.

[0008] Furthermore, each end of the plug body is provided with a mounting platform, and the handle includes a grip and two oppositely arranged connecting parts; the grip is connected between one end of the two connecting parts, and the other ends of the two connecting parts are respectively hinged to the two sides of the mounting platform.

[0009] Furthermore, a limiting groove is provided on each side of the two connecting parts that are positioned opposite each other; a limiting bracket is provided on the mounting platform to cooperate with the limiting groove and to limit the rotation angle of the connecting parts.

[0010] Furthermore, a cushioning pad is provided on the side of the pressing part that contacts the flange.

[0011] Furthermore, one side wall of the connector is provided with at least one inwardly recessed groove, which is arranged longitudinally along the side wall of the connector; the side wall of the plug groove is provided with at least one boss that slides with the groove.

[0012] Furthermore, several female pins are arranged in two rows on the connector, and several male pins are arranged in two rows corresponding to the female pins in the connector slot; there is a locking block protruding towards the connector between the two rows of male pins, and a locking groove that cooperates with the locking block between the two rows of female pins.

[0013] Furthermore, the plug is provided with a mounting groove that passes through the plug body and the connector, and the female pin is installed in the mounting groove.

[0014] Furthermore, the side wall of the plug body is provided with heat dissipation holes that communicate with the mounting groove, and a filter screen is provided inside the heat dissipation holes.

[0015] Furthermore, the connector has N first pin slots arranged circumferentially along the side wall of the connector, and N-1 second pin slots and one third pin slot are provided in the pin slots; the third pin slot cooperates with one of the first pin slots to form a first pin position, and a first anti-mistake pin is provided in the first pin position; the N-1 second pin slots correspond one-to-one with the N-1 first pin slots to form a second pin position, and a second anti-mistake pin is provided in the second pin position.

[0016] Furthermore, the mounting platform is provided with at least one first mounting hole, and the flange is provided with at least one second mounting hole that mates with the first mounting hole. The plug body and the socket body are fixedly connected by fasteners that mate with the first mounting hole and the second mounting hole respectively.

[0017] Furthermore, the fasteners are bolts or screws.

[0018] The beneficial effects of this utility model are as follows: by setting up an auxiliary wrench, during the process of unplugging the plug, by rotating the handle of the auxiliary wrench downward, the pressing part of the auxiliary wrench rotates towards one side of the socket with the handle, and at the same time, applies pressure to the flange, so that the plug gradually separates from the socket; the auxiliary wrench utilizes the lever principle to enable the plug and socket to separate easily and stably without being too forceful, so as to achieve the purpose of easily unplugging the plug by using the auxiliary wrench. Attached Figure Description

[0019] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, use the same reference numerals to denote the same or similar parts. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0020] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model;

[0021] Figure 2 This is a schematic diagram of the structure of a plug according to an embodiment of the present invention;

[0022] Figure 3 for Figure 2 Top view;

[0023] Figure 4 for Figure 2 A bottom view;

[0024] Figure 5 This is a schematic diagram of the structure of a socket according to an embodiment of the present invention;

[0025] Figure 6 for Figure 5 Top view.

[0026] The components are: 1. Plug; 11. Fastener; 2. Connector; 21. Female pin; 22. Slot; 23. First pin slot; 24. Groove; 3. Mounting slot; 4. Pull-out wrench; 41. Handle; 42. Pressing part; 43. Limiting slot; 44. Limiting support; 5. Socket; 51. Connecting slot; 52. Male pin; 53. Locking block; 54. Second pin slot; 55. Third pin slot; 56. Boss; 57. Second mounting hole. Detailed Implementation

[0027] like Figure 1 The intermediate connector shown is used for a protection cabinet, connecting the relay protection device and the terminal block of the protection cabinet. The intermediate connector includes a plug 1 and a socket 5 that mates with the plug 1. The plug 1 includes a plug body and a connector 2, with several female pins 21 arranged inside the connector 2. The socket 5 includes a socket body and a slot 51, which fits in a conformal manner and has several male pins 52 that correspond one-to-one with the female pins 21. The socket 5 of the connector can be installed at the lower rear of the cabinet, and the wiring is connected to the terminal block of the protection cabinet. The socket 5 is installed behind the pressure plate of the protection cabinet, without occupying the installation space of the internal devices of the protection cabinet, and without affecting the external cable wiring. The plug 1 is connected to the relay protection device. When the relay protection device needs to be replaced, the connection wiring from the new relay protection device to the plug 1 is completed in the factory during the protection upgrade. Then, the plug 1 is plugged into the socket 5 to realize the connection between the relay protection device and the terminal block.

[0028] like Figures 1-4 As shown, each end of the plug body 1 is provided with an auxiliary pull-out wrench 4; the auxiliary pull-out wrench 4 includes a handle 41, one end of the handle 41 is hinged to the plug body 1, and one end of the handle 41 is provided with a pressing part 42; as shown Figure 1 , Figure 5 and Figure 6 As shown, each end of the socket 5 body has a flange extending towards both ends; as the handle 41 rotates towards one side of the socket 5, the pressing part 42 of the pull-out wrench 4 applies pressure to the flange, causing the plug 1 body to move away from the socket 5 body, so that the connector 2 can gradually disengage from the socket groove 51. The width of the pressing part 42 (the width extending from the handle 41 away from the plug 1 body) can be set according to the depth of the socket groove 51 or the length of the connector 2.

[0029] By setting up an auxiliary wrench 4, the intermediate connector can easily separate the plug 1 from the socket 5 by rotating the handle 41 of the auxiliary wrench 4 downwards during the process of pulling out the plug 1. At the same time, the pressing part 42 of the auxiliary wrench 4 rotates to one side of the socket 5 with the handle 41, and applies pressure to the flange. By utilizing the lever principle, the plug 1 and the socket 5 can be easily separated, thus achieving the purpose of easily pulling out the plug 1 by using the auxiliary wrench 4.

[0030] According to one embodiment of this application, a mounting platform is provided at each end of the plug body 1. The handle 41 includes a grip and two oppositely arranged connecting parts. The grip is connected between one end of the two connecting parts, and the other ends of the two connecting parts are respectively hinged to the two sides of the mounting platform. The pressing part 42 is provided on the side of the connecting parts away from the plug body 1. During the rotation of the pull-out wrench 4, the operator can rotate the handle 41 by gripping the grip. By using a U-shaped structure and hinged to the two sides of the mounting platform, it can be ensured that the pull-out wrench 4 applies force evenly to both sides of the socket 5, so that the plug 1 can be smoothly removed from the socket 5.

[0031] According to one embodiment of this application, a limiting groove 43 is provided on each side of the two connecting parts that are arranged opposite to each other; a limiting bracket 44 is provided on the mounting platform to cooperate with the limiting groove 43 and to limit the rotation angle of the connecting parts. The limiting bracket 44 is a stop block installed on the mounting platform and located away from the socket 5. When the connecting part rotates upward to the position of the limiting bracket 44, the limiting groove 43 engages with the limiting bracket 44, thereby limiting the upward rotation angle of the connecting part.

[0032] According to one embodiment of this application, a buffer pad is provided on the side of the pressing portion 42 that contacts the flange. The buffer pad can protect the equipment or structure from direct impact or abrasion.

[0033] According to one embodiment of this application, at least one inwardly recessed groove 24 is provided on one side wall of the plug connector 2, and the groove 24 is arranged longitudinally along the side wall of the plug connector 2; at least one boss 56 is provided on the side wall of the plug slot 51, which slides and engages with the groove 24. The groove 24 and the boss 56 that engage with each other on one side wall of the plug connector 2 and the plug slot 51 can be used to prevent misinsertion of the plug 1 and the socket 5 due to reverse polarity.

[0034] According to one embodiment of this application, a plurality of female pins 21 are arranged in two rows on the connector 2, and a plurality of male pins 52 are arranged in two rows corresponding to the female pins 21 in the connector groove 51; a locking block 53 protruding towards the connector 2 is provided between the two rows of male pins 52, and a locking groove 22 cooperating with the locking block 53 is provided between the two rows of female pins 21. When the connector is inserted, it may be subjected to lateral force or torsional force, especially when the connector is used in an environment with vibration, this is more obvious; by providing locking blocks 53 and locking grooves 22 in the connector groove 51 and the connector 2 respectively, this application can strengthen the structure and guide the insertion process, thereby reducing the risk of uneven force on the pins, dispersing the mechanical stress during insertion and removal, and extending the pin life.

[0035] According to one embodiment of this application, the plug 1 is provided with a mounting groove 3 that passes through the body of the plug 1 and the connector 2, and the female pin 21 is mounted in the mounting groove 3. The connection line of the relay protection device extends from the end of the mounting groove 3 away from the connector 2 into the mounting groove 3 and is electrically connected to the female pin 21.

[0036] According to one embodiment of this application, the side wall of the plug 1 body is provided with heat dissipation holes that communicate with the mounting groove 3, and a filter screen is provided inside the heat dissipation holes. By providing heat dissipation holes, heat dissipation inside the plug 1 can be facilitated, and the filter screen located at the heat dissipation hole position not only prevents dust and other impurities from entering the mounting groove 3 and affecting the electrical performance of the plug 1.

[0037] According to one embodiment of this application, the connector 2 is provided with N first pin slots 23 arranged circumferentially along the side wall of the connector 2, and the connector groove 51 is provided with N-1 second pin slots 54 and one third pin slot 55; the third pin slot 55 cooperates with one of the first pin slots 23 to form a first pin position, and the first pin position is provided with a first anti-misalignment pin; the N-1 second pin slots 54 respectively correspond one-to-one with the N-1 first pin slots 23 to form second pin positions. The N-1 second pin slots respectively correspond one-to-one with the N-1 first pin slots to form second pin positions, and the second pin positions are provided with second anti-misalignment pins.

[0038] According to one embodiment of this application, the mounting platform is provided with at least one first mounting hole, and the flange is provided with at least one second mounting hole 57 that mates with the first mounting hole. The plug body 1 and the socket body 5 are fixedly connected by fasteners 11 that mate with the first mounting hole and the second mounting hole 57 respectively. The fasteners 11 are bolts or screws. The plug 1 and the socket 5 are fastened together by bolts or screws that pass through the mounting platform and the flange, which provides high connection stability and facilitates disassembly and assembly.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An intermediate connector for protecting a cabinet, characterized in that, The intermediate connector connects the relay protection equipment and terminal block of the protection cabinet; the intermediate connector includes a plug and a socket that mates with the plug; the plug includes a plug body and a connector, and the connector has a plurality of female pins arranged therein; the socket includes a socket body and a slot, the slot is conformally fitted with the connector, and the slot has a plurality of male pins that correspond one-to-one with the female pins. Each end of the plug body is provided with an auxiliary wrench; the auxiliary wrench includes a handle, one end of which is hinged to the plug body, and the end of the handle hinged to the plug body is provided with a pressing part; each end of the socket body is provided with a flange extending to both ends, and the pressing part of the auxiliary wrench applies pressure to the flange as the handle rotates toward one side of the socket, so as to separate the socket body from the plug body.

2. The intermediate connector for a protective cabinet according to claim 1, characterized in that, The plug body has a mounting platform at each end, and the handle includes a grip and two oppositely arranged connecting parts; the grip is connected between one end of the two connecting parts, and the other end of the two connecting parts is hinged to both sides of the mounting platform.

3. The intermediate connector for protecting the cabinet according to claim 2, characterized in that, Each of the two connecting parts is provided with a limiting groove on one side of its opposite arrangement; the mounting platform is provided with a limiting bracket that cooperates with the limiting groove to limit the rotation angle of the connecting parts.

4. The intermediate connector for a protective cabinet according to any one of claims 1-3, characterized in that, The side of the pressing part that contacts the flange is provided with a buffer pad.

5. The intermediate connector for a protective cabinet according to claim 1, characterized in that, The connector has at least one inwardly recessed groove on one side wall, the groove being arranged longitudinally along the side wall of the connector; the plug groove has at least one boss that slides with the groove on its side wall.

6. The intermediate connector for a protective cabinet according to claim 1, characterized in that, Several female pins are arranged in two rows on the connector, and several male pins are arranged in two rows corresponding to the female pins in the connector groove; a locking block protruding towards the connector is provided between the two rows of male pins, and a locking groove that cooperates with the locking block is provided between the two rows of female pins.

7. The intermediate connector for a protective cabinet according to claim 1, characterized in that, The plug has a mounting groove that passes through the plug body and the connector, and the female pin is installed in the mounting groove.

8. The intermediate connector for a protective cabinet according to claim 7, characterized in that, The plug body has a heat dissipation hole on its side wall that communicates with the mounting groove, and a filter screen is provided inside the heat dissipation hole.

9. The intermediate connector for a protective cabinet according to claim 1, characterized in that, The connector has N first pin slots arranged circumferentially along the side wall of the connector. Each pin slot has N-1 second pin slots and one third pin slot. The third pin slot cooperates with one of the first pin slots to form a first pin position, and the first pin position is provided with a first anti-mistake pin. The N-1 second pin slots correspond one-to-one with the N-1 first pin slots to form second pin positions, and the second pin positions are provided with second anti-mistake pins.

10. The intermediate connector for a protective cabinet according to claim 2, characterized in that, The mounting platform is provided with at least one first mounting hole, and the flange is provided with at least one second mounting hole that mates with the first mounting hole. The plug body and the socket body are fixedly connected by fasteners that mate with the first mounting hole and the second mounting hole respectively.

Images