CN108306156A - The good power switch cabinet signal plug assembly of versatility - Google Patents

Abstract

The invention discloses a signal plug-in device for a power switch cabinet with good versatility, which includes a plug and a socket; There are a first slot and a third slot, the pin is fixed in the first slot, the side of the upper housing is provided with a second slot communicating with the third slot, and the elastic section of the upper locking mechanism is fixed in the second slot On the bottom surface, the locking section of the upper locking mechanism is slidably matched with the second groove. The socket includes a lower shell, a socket, and a fixed post. The locking section of the locking mechanism is clamped and fitted, and the lower housing is provided with a fourth groove corresponding to the pin, and the socket is fixedly connected in the fourth groove and slides and presses with the pin. To sum up, the present invention is easy to install and disassemble, has strong stability, and can standardize the relay protection devices of switch cabinets with different wiring methods, thereby achieving the effect of saving time, labor, and convenience.

Description

Good versatility power switch cabinet signal plug-in device

technical field

The invention relates to the electrical field, in particular to a signal plug-in device for a power switch cabinet with good versatility.

Background technique

At present, the replacement of relay protection devices in switch cabinets has been carried out on a regular basis. However, with a product span of more than ten years, even if the original products of the same manufacturer are used, the consistency of the terminal wiring of the product cannot be guaranteed. , these tasks are not only a huge workload, but the reliability of the secondary circuit is reduced due to the reconnection of the secondary line, and a huge workload such as re-transmission is required. The traditional relay protection device replacement project requires multiple steps every time, and the workload is large. It is time consuming and the work requires high precision. For example, if the wiring between the relay protection equipment and the terminal block is mismatched, poor contact, or empty, the wiring problem can only be found in the later stage of debugging, which has a great potential safety hazard. The existing interface is inconvenient to connect, and the stability after plugging is poor, especially in a high-voltage environment such as a substation, if the plugging is not firm, it will affect the performance of the relay protection device, resulting in economic losses and even irreparable power consumption disasters .

Contents of the invention

The invention provides a universal interface with convenient installation and disassembly and strong stability, which can unify the relay protection devices of switch cabinets connected in different ways, thereby achieving the effect of saving time and labor.

In order to solve the above-mentioned problems, the signal plug-in device of the power switch cabinet with good versatility includes a plug and a socket for plug-in matching. There is a first groove and a third groove on the end surface of the upper casing, and the pin is fixedly connected in the first groove, and a second groove connected with the third groove is arranged on the side of the upper casing, and the upper locking mechanism The elastic section of the upper locking mechanism is fixedly connected to the bottom surface of the second groove, and the locking section of the upper locking mechanism is slidably matched with the second groove. The socket includes a lower shell, a socket, and a fixing post. The three slots are sliding fit, the fixed column is clamped with the locking section of the upper locking mechanism, and the lower housing is provided with a fourth slot corresponding to the pin. Tight fit; the pin includes a copper column, and the lower end of the copper column is fixed with a hemispherical spherical crown with an equal diameter; the socket includes a number of copper shrapnel rings arranged in the fourth groove, and the copper shrapnel is from the outside of the fourth groove. The end to the inner end is bent in a wave shape, the inner and outer ends of the copper shrapnel are elastically fixed and clamped between the inner port and the outer port of the fourth slot, and the middle section of the copper shrapnel is smoothly bent toward the axis line of the fourth slot.

The plug part of the present invention is connected with the relay protection device through a line. In the plug part, the wire enters the first groove to be connected with the pin, the socket part is connected with the electrical equipment through the line, and the wire enters the fourth groove to be connected with the socket. It corresponds to the socket and is plugged in. At this time, the pins on the plug and the sleeve on the socket are press fit, so as to realize the conduction of the circuit. When the relay protection device needs to be replaced, only the plug part and the The unified wiring method of the socket can be provided to the manufacturer. When the plug and the socket are fully inserted and mated, the fixing column on the socket completely enters the third slot on the plug, and is inserted into the second slot vertically connected with the third slot. The upper locking mechanism is clamped to ensure the stability of the plug and socket fit. When disassembling the plug and socket, you only need to press the upper pressing plate on the upper locking mechanism, and the upper pressing plate pushes the first slider. Disengage from the card slot on the post, so as to realize the unlocking between the plug and the socket, and the plug can be easily pulled out.

In this patent, the pins include copper pillars with a circular cross-section, which can ensure uniform force on the periphery of the copper pillars when they are inserted into the socket, and facilitate smooth insertion and insertion. The socket includes a number of copper shrapnel rings arranged in the fourth groove. The copper shrapnel is a strip-shaped sheet extending axially along the fourth groove. Therefore, a plurality of copper shrapnel can be arranged in the fourth groove, which is conducive to Increasing the contact quantity and contact area between the copper shrapnel and the copper pillar helps to improve the reliability of contact conduction. In this patent, the copper shrapnel is bent from the outer end to the inner end of the fourth groove, that is, along its length direction in a wave shape. In this way, each piece of copper shrapnel will form a number of "arcs" that approach smoothly to the axis of the fourth groove. Obviously, the curved "arcs" have a certain degree of elasticity. The advantage of this setting is that when the copper column is inserted into the fourth slot, it will be elastically squeezed together with the "arc" of each copper shrapnel. Not only are there more contact points, but also the contact reliability is very high. The connection is very reliable, that is to say the insertion of the pins and sockets is very reliable. In this patent, the inner and outer ends of the copper shrapnel are elastically clamped between the inner port and the outer port of the fourth groove, and the middle section of the copper shrapnel is smoothly bent toward the axis line of the fourth groove. That is to say, each piece of copper shrapnel presents a "C" shape in which the middle is smooth and close to the axis line of the fourth groove, and the two ends gradually move away from the axis line of the fourth groove. Obviously, the "C" shaped copper shrapnel has a certain degree of elasticity as a whole. When the copper column is inserted into the socket, the "C"-shaped copper shrapnel will exert elastic compression force on the copper column under the support of the two ports of the fourth slot, which further enhances the reliability of the plug-in connection. To sum up, the pins and sleeves of this patent have two sets of elastic compression effects, that is, the overall elasticity of the "C"-shaped copper shrapnel and the local elasticity of the "arc", which effectively ensures the insertion of the pins and sleeves. Reliability of fit and reliability of electrical connection. In this contact pin, the lower end of the copper column is fixed with a hemispherical spherical crown with an equal diameter. The main function is to reduce the resistance when inserting the socket and guide the advancement of the copper column, which improves the smoothness of the insertion. The insertion efficiency and success rate are improved.

As an improvement, the upper locking mechanism includes an upper pressing plate, a first slider, and a first spring, the locking section is the first slider, the elastic section is the first spring, the first pressing block and the first spring are fixedly connected together by the first slider.

One end of the first spring is affixed to the bottom surface of the second groove, the other end is affixed to one end surface of the first slider, and the other end surface of the first slider is affixed to the upper pressing plate. During use, press the upper pressing plate. The sliding of the upper locking mechanism in the second groove can be realized.

As an improvement, a clamping block is provided on the first slider, and a clamping groove for clamping engagement with the clamping block is provided on the side of the fixing column.

When the socket and the plug are fully mated, the card slot on the fixed column is located at the junction of the second slot and the third slot, and the block on the upper locking mechanism enters the slot along with the sliding of the upper locking mechanism. The elastic force of the first spring acts to clamp the fixing post.

As an improvement, there are multiple fixing posts fixed on the end surface of the lower housing in two rows, and the spacing of the left row of fixing posts is different from that of the right row of fixing posts.

In this patent, the fixing column has at least three functions. One function is to play a guiding role when the upper casing and the lower casing are plugged and fitted, so that the two can be quickly assembled and the work efficiency is improved. The second function is to fix and lock the upper housing and the lower housing together through the clamping block and the locking groove, so as to realize fast locking and unlocking of the upper housing and the lower housing, and the operation is more convenient. Assuming that the direction in which the guide rail extends is the left and right direction, then the two rows of fixing columns fixed on the lower housing can be called the left row of fixing columns and the right row of fixing columns. In this patent, the spacing of the fixed columns in the left row of fixed columns is different from the spacing of the fixed columns in the right row of fixed columns, that is, non-centrosymmetric. Therefore, the third function of the fixing column is to make the plug and the socket fit in only one corresponding direction, avoiding the possibility of wrong insertion caused by the plug being reversed, and avoiding the short circuit or burning of the machine due to wrong wiring It has the effect of improving work efficiency and improving work safety.

As an improvement, the upper casing and the lower casing are respectively provided with threaded holes communicating with the first groove and the fourth groove, and screws matched therewith are provided in the threaded holes.

When the wires are connected to the pins and sockets, the screws enter the first or fourth slots through the threaded holes communicating with the first or fourth slots, thereby compressing the wires.

As an improvement, the guide rail is a double-groove guide rail, and the bottom surface of the guide rail is provided with threaded holes.

The double-groove guide rail is two guide rails fixed together horizontally through a base plate, and the corresponding first and second press blocks are also two groups, which increases the stability of the installation, and the guide rail passes through the thread on the bottom surface. The holes and the matching screws are connected to the cabinet surface of the switch cabinet.

As an improvement, the upper casing is provided with a straight line plate fixed on the end surface of the upper casing.

The cable group after plugging is bundled on the wiring board with cable ties, which is both beautiful and stable.

As an improvement, the upper end of the fixing column is pointed.

The upper end of the fixing column is set as a pointed shape, which is more convenient to be inserted into the third groove.

To sum up, the present invention is easy to install and disassemble, and has strong stability. It can unify the relay protection devices of switch cabinets with different wiring methods, so as to save time, labor, and convenience.

The following figures illustrate further,

Fig. 1 is the overall structure schematic diagram of the present invention;

Fig. 2 is a schematic diagram of the plug structure of the present invention;

Fig. 3 is a schematic diagram of the socket structure of the present invention;

Figure 4 is an overall sectional view of the present invention;

Fig. 5 is a comparison diagram of an upper locking mechanism and a lower locking mechanism;

Figure 6 is a schematic diagram of the assembly structure of the pin and socket;

Fig. 7 is a state diagram after the pin and the sleeve are inserted.

Detailed ways

As shown in the figure, the signal plug-in device of the power switch cabinet with good versatility includes a plug 1 and a socket 2; , the end surface of the upper casing 3 is provided with a first groove 6 and a third groove 8, the pin 4 is fixedly connected in the first groove 6, and the side surface of the upper casing 3 is provided with a second groove communicating with the third groove 8 7. The elastic section of the upper locking mechanism 5 is fixedly connected to the bottom surface of the second groove 7, and the locking section of the upper locking mechanism 5 is slidably matched with the second groove 7. The socket 2 includes a lower shell 9, a socket 10, and a fixing column 11. The fixed column 11 is fixedly connected to the base shell and is slidingly fitted with the third groove 8. The fixed column 11 is clamped and fitted with the locking section of the upper locking mechanism 5. The lower housing 9 is provided with a corresponding pin 4 The fourth slot 12, the sleeve 10 is fixed in the fourth slot 12 and is slidingly and press-fitted with the pin 4.

Part 1 of the plug of the present invention is connected to the relay protection device through a line. In the part 1 of the plug, the wire enters the first groove 6 to connect with the pin 4. The part 2 of the socket is connected to the electrical equipment through the line, and the wire enters the fourth groove 12. Connected with the socket 10, the plug 1 corresponds to the socket 2 and is plugged in. At this time, the pin 4 on the plug 1 and the socket 10 on the socket 2 are press fit, so as to realize the conduction of the circuit and need to be replaced For the relay protection device, it is only necessary to provide the manufacturer with the plug 1 part and the unified wiring method with the socket 2. When the plug 1 and the socket 2 are fully inserted and mated, the fixing column 11 on the socket 2 is completely inserted into the plug 1. In the third groove 8 on the top, it is clamped by the upper locking mechanism 5 in the second groove 7 vertically connected with the third groove 8, so as to ensure the stability of plugging and matching of the plug 1 and the socket 2, and disassemble the plug 1 socket 2, you only need to press the upper pressing plate 16 on the upper locking mechanism 5, the upper pressing plate 16 pushes the first slider 17, and the locking block 19 is disengaged from the locking groove 20 on the fixing column 11, thereby realizing the connection between the plug 1 and the socket 2. The plug 1 can be pulled out easily.

In this patent, the pins include copper pillars 01, the cross-section of which is circular, which can ensure the uniformity of force on the periphery of the copper pillars when they are inserted into the sockets, and facilitate smooth insertion and removal. The socket includes a number of copper shrapnel rings arranged in the fourth groove. The copper shrapnel is a strip-shaped sheet extending axially along the fourth groove. Therefore, a plurality of copper shrapnel 05 can be arranged in the fourth groove, which is helpful It is used to increase the contact quantity and contact area between the copper shrapnel and the copper pillar, that is, it helps to improve the reliability of contact conduction. In this patent, the copper shrapnel is bent from the outer end to the inner end of the fourth groove, that is, along its length direction in a wave shape. In this way, each piece of copper shrapnel will form a number of "arc parts" 03 smoothly approaching the axis line of the fourth groove. Obviously, the curved "arc parts" have certain elasticity. The advantage of this setting is that when the copper column is inserted into the fourth slot, it will be elastically squeezed together with the "arc" of each copper shrapnel. Not only are there more contact points, but also the contact reliability is very high. The connection is very reliable, that is to say the insertion of the pins and sockets is very reliable. In this patent, the inner and outer ends of the copper shrapnel are elastically clamped between the inner port and the outer port of the fourth groove, and the middle section of the copper shrapnel is smoothly bent toward the axis line of the fourth groove. That is to say, each piece of copper shrapnel presents a "C" shape in which the middle is smooth and close to the axis line of the fourth groove, and the two ends gradually move away from the axis line of the fourth groove. Obviously, the "C" shaped copper shrapnel has a certain degree of elasticity as a whole. When the copper column is inserted into the socket, the "C"-shaped copper shrapnel will exert elastic compression force on the copper column under the support of the two ports of the fourth slot, which further enhances the reliability of the plug-in connection. To sum up, the pins and sockets of this patent have two sets of elastic compression effects, namely the overall elasticity of the "C"-shaped copper shrapnel and the local elasticity of the "arc", which effectively ensures the insertion of the pins and sockets Reliability of fit and reliability of electrical connection. In this contact pin, the lower end of the copper column is fixed with a hemispherical spherical crown 02 with an equal diameter. The main function is to reduce the resistance when inserting the socket and guide the copper column to advance, which improves the smoothness of the insertion. , improving the insertion efficiency and success rate.

In the present invention, the side of the lower housing 9 is provided with a fifth groove 13, and the lower housing 9 is provided with a lower locking mechanism 14 slidingly fitted with the fifth groove 13, and also includes a guide rail 15, through which the socket 2 is locked. Tightening mechanism 14 and guide rail 15 snap fit.

The socket 2 is fixed on the guide rail 15 through the lower locking mechanism 14, and only needs to press the lower pressing plate 27 to realize the unlocking of the locking mechanism during disassembly, so that the socket 2 is separated from the guide rail 15.

In the present invention, the upper locking mechanism 5 includes an upper pressing plate 16, a first slider 17, and a first spring 18, the locking section is the first slider 17, the elastic section is the first spring 18, the first A pressing block 22 is fixedly connected with the first spring 18 through the first sliding block 17 .

One end of the first spring 18 is affixed to the bottom surface of the second groove 7, the other end is affixed to an end surface of the first slider 17, and the other end surface of the first slider 17 is affixed to the upper pressing plate 16, during use , pressing the upper pressing plate 16 can realize the sliding of the upper locking mechanism 5 in the second groove 7 .

In the present invention, the first sliding block 17 is provided with a clamping block 19 , and the side of the fixing column 11 is provided with a clamping groove 20 which is tightly matched with the clamping block 19 .

When the socket 2 and the plug 1 are fully inserted and matched, the locking groove 20 on the fixed column 11 is located at the junction of the second groove 7 and the third groove 8, and the locking block 19 on the upper locking mechanism 5 follows the upper locking mechanism. 5 slides into the locking groove 20, and due to the elastic force of the first spring 18, the fixing column 11 is clamped.

In the present invention, the fixed posts 11 are multiple and fixed on the end surface of the lower housing 9 in two rows, and the spacing between the left row of fixed posts 11 is different from that between the right row of fixed posts 11 .

In this patent, the fixing column has at least three functions. One function is to play a guiding role when the upper casing and the lower casing are plugged and fitted, so that the two can be quickly assembled and the work efficiency is improved. The second function is to fix and lock the upper housing and the lower housing together through the clamping block and the locking groove, so as to realize fast locking and unlocking of the upper housing and the lower housing, and the operation is more convenient. Assuming that the direction in which the guide rail extends is the left and right direction, then the two rows of fixing columns fixed on the lower housing can be called the left row of fixing columns and the right row of fixing columns. In this patent, the spacing of the fixed columns in the left row of fixed columns is different from the spacing of the fixed columns in the right row of fixed columns, that is, non-centrosymmetric. Therefore, the third function of the fixing column is to make the plug and the socket fit in only one corresponding direction, avoiding the possibility of wrong insertion caused by the plug being reversed, and avoiding the short circuit or burning of the machine due to wrong wiring It has the effect of improving work efficiency and improving work safety. In this embodiment, the left row of fixed columns and the right row of fixed columns each have two fixed columns, but the spacing between the fixed columns in the left row of fixed columns is much smaller than the spacing between the fixed columns in the right row of fixed columns, so that the staff can easily The insertion direction can be distinguished, which improves the work efficiency.

In the present invention, the lower locking mechanism 14 includes a second slider 21 , a lower pressing plate 27 , a first pressing block 22 , a second pressing block 23 , and a second spring 28 . The second pressing block 23 is affixed to the first spring 18 through the second slide block 21, the first pressing block 22 is affixed to the bottom surface of the lower casing 9, the lower pressing plate 27 is hingedly fitted with the second sliding block 21, and the lower pressing plate 27 The middle end of the lower housing 9 is hingedly matched, the lower pressing plate 27 is concave, and the lower pressing plate 27 is hinged with the socket 2 at the middle end position, thereby forming a lever. One end of the lower pressing plate 27 is hingedly matched with the second slider 21, and the installation At this time, as long as the other end of the lower pressing plate 27 is pressed, due to the principle of leverage, the lower pressing plate 27 swings to drive the second sliding block 21 to slide along the fifth groove 13, and the second pressing block 23 arranged on the second sliding block 21 follows Moving outward, the distance between the first pressing block 22 and the second pressing block 23 becomes larger. At this time, the socket 2 is placed on the guide rail 15, and the lower pressing plate 27 is loosened. Due to the action of the second spring 28, the second sliding block 21 is reversed. Moving in the direction, the second pressing block 23 presses the guide rail 15, so as to realize the fixing of the socket 2.

In the present invention, the upper shell 3 and the lower shell 9 are respectively provided with threaded holes 24 communicating with the first groove 6 and the fourth groove 12, and the threaded holes 24 are provided with screws 25 matched therewith.

When the electric wire is connected to the pin 4 and the socket sleeve 10, the screw 25 enters the first groove 6 or the fourth groove 12 through the threaded hole 24 communicated with the first groove 6 or the fourth groove 12, and then compresses the electric wire.

In the present invention, the guide rail 15 is a double-groove guide rail 15 , and the bottom surface of the guide rail 15 is provided with a threaded hole 24 .

The double-groove guide rail 15 is that two guide rails 15 are horizontally fixed together through a bottom plate, and the first pressing block 22 and the second pressing block 23 corresponding to it are also two groups, which increases the stability of the installation, and the guide rail 15 is connected to the cabinet surface of the switchgear through the threaded hole 24 on the bottom surface and the screw 25 matched with it.

In the present invention, the upper casing 3 is provided with a straight line plate 26 fixedly connected to the end surface of the upper casing 3 .

The cable group that has been plugged is bound on the line board 26 by cable ties, etc., which is beautiful, stable and reliable.

In the present invention, the upper end of the fixing column 11 is pointed.

The upper end of the fixing post 11 is set as a pointed shape to facilitate insertion into the third groove 8 .

Claims (7)

1. A signal plug-in device for a power switch cabinet with good versatility, including a plug (1) and a socket (2) for plug-in matching, characterized in that the plug (1) includes an upper shell (3), pins ( 4), the upper locking mechanism (5), the middle part of the upper housing (3) is provided with a slot array composed of a number of first slots (6), the outer periphery of the slot array is provided with a number of third slots (8), and the pins (4 ) is fixed in the first groove (6), and the upper housing (3) is also provided with a second groove (7) vertically connected with the inner end of the third groove (8), and the upper locking mechanism (5) includes a fixed The elastic section connected to the bottom surface of the second groove (7) also includes a locking section that slides with the second groove (7); the socket (2) includes a lower housing (9), a socket (10), a fixing column ( 11), the fixed column (11) is fixedly connected to the lower housing (9) and fits one-to-one with the third groove (8), and the inner section of the fixed column (11) can be locked with the upper locking mechanism (5). The tight section is clamped and fitted, the lower housing (9) is provided with a fourth groove (12) corresponding to the pin (4), and the socket (10) is fixed in the fourth groove (12) and is connected to the pin ( 4) Sliding and pressing fit; the pin (4) includes a copper column (01), and the lower end of the copper column is fixed with a hemispherical spherical cap (02) with an equal diameter; the socket (10) includes a ring set on A number of copper shrapnels (05) in the fourth groove (12), the copper shrapnel are arranged in a wave shape from the outer end to the inner end of the fourth groove, and the inner and outer ends of the copper shrapnel are elastically fixed and clamped between the inner port and the outer end of the fourth groove. Between the ports, the middle section of the copper shrapnel is smoothly bent toward the axis line of the fourth groove; the upper locking mechanism (5) includes an upper pressing plate (16), a first slider (17), and a first spring (18). The locking section is the first slider (17), the elastic section is the first spring (18), the first pressure block (22) and the first spring (18) are fixed on the first slider (17) Together. 2. A signal plug-in device with good versatility for power switch cabinets according to claim 1, characterized in that: the first slider (17) is provided with a block (19), and the fixed column ( 11) On the side, there is a slot (20) that fits tightly with the block (19). 3. A signal plug-in device with good versatility for a power switch cabinet as claimed in claim 2, characterized in that: there are multiple fixing columns (11) fixed in two rows on the end face of the lower casing (9) Above, the spacing of the left row of fixed posts is different from that of the right row of fixed posts. 4. A signal plug-in device with good versatility for a power switch cabinet according to claim 3, characterized in that: the upper casing (3) and the lower casing (9) are respectively provided with the first groove ( 6), the threaded hole (24) connected with the fourth groove (12), and the threaded hole (24) is provided with a screw (25) matched therewith. 5. A signal plug-in device with good versatility for a power switch cabinet as claimed in claim 4, characterized in that: the guide rail (15) is a double-groove guide rail, and the bottom surface of the guide rail (15) is provided with threaded holes. 6. A signal plug-in device with good versatility for a power switch cabinet as claimed in claim 5, characterized in that: a wiring board (26) is provided on the end surface of the upper casing (3). 7. A signal plug-in device with good versatility for a power switch cabinet as claimed in claim 6, characterized in that: the upper end of the fixing column (11) is pointed.