CN114300298A

CN114300298A - Isolating switch

Info

Publication number: CN114300298A
Application number: CN202210006506.8A
Authority: CN
Inventors: 计新华; 薛豪; 金显将; 何金垚; 赵青青; 周良; 苏国俊; 王小英
Original assignee: Zhejiang Tengen Electric Co Ltd
Current assignee: Zhejiang Tengen Electric Co Ltd
Priority date: 2022-01-05
Filing date: 2022-01-05
Publication date: 2022-04-08

Abstract

The invention relates to an isolating switch, which belongs to the technical field of electrical switches and comprises a switch body, wherein the switch body is provided with a plurality of vertically stacked switch bodies, the side edge of each switch body is provided with a load interface for connecting a load line, the load interfaces on the same side of each switch body are respectively connected with a modularized detection device, and the modularized detection devices are used for detecting electric parameter data of each switch body. The modularized detection device provided by the invention has the advantages that the occupied space of the isolation switch and the detection device is reduced, the whole modularized design is facilitated, the maintenance and the overhaul are facilitated, the labor cost is reduced, and the use failure rate is reduced.

Description

Isolating switch

Technical Field

The invention relates to the technical field of electrical switches, in particular to an isolating switch.

Background

The existing laminated isolating switch lacks the detection of current or voltage in a loop, so that abnormal power parameters cannot be found, and the abnormal current often causes load damage.

In the field of circuit breakers, some detection units built in the circuit breaker often exist, but the structural design of the detection units is only suitable for the circuit breaker, and the detection units are difficult to be directly applied to a stacked disconnecting switch.

Disclosure of Invention

Therefore, the technical problem to be solved by the present invention is to overcome the defect of time and labor waste in the prior art when a detection device is arranged on a plurality of lines, so as to provide a disconnecting switch with a modular detection device.

In order to solve the above problems, the present invention provides a disconnecting switch, including:

the switch comprises a switch body, a plurality of switch bodies and a plurality of control modules, wherein the switch body is stacked up and down, a load interface used for connecting a load line is arranged on the side edge of the switch body, and the load interface on the same side of each switch body is connected with a modular detection device; the modularized detection device is used for detecting the electric parameter data of each switch body.

Further, still include: and the control box is connected to one side of the switch body, and a control panel in the control box is used for receiving the electric power parameter data detected by the modularized detection device.

Further, still include: a driving device linked with the operating mechanism of each switch body; an abnormal power parameter threshold value is arranged in the control panel, and the control panel controls the driving device to move when the power parameter data exceeds the abnormal power parameter threshold value.

Furthermore, each modularization detection device is provided with a feedback contact pin, the control box is provided with a connecting groove used for connecting the clamping block of the modularization detection device, the control box is also provided with a receiving jack used for connecting the feedback contact pin of the modularization detection device, and the receiving jack is electrically connected with the control panel.

Furthermore, each modular detection device is provided with a feedback jack, each modular detection device is arranged in an up-down stacked mode, a feedback pin of each adjacent modular detection device is inserted into a feedback jack of another modular detection device, and a feedback pin of each modular detection device close to the control box is inserted into a receiving jack.

Furthermore, the modularization detection device is provided with a joint block and a joint groove which are matched, the feedback contact pin is arranged on the joint block, and the feedback jack is arranged in the joint groove.

Furthermore, the both sides of joint piece are equipped with first joint muscle respectively, be equipped with respectively on the both sides wall in joint groove with first joint muscle matched with second joint muscle.

Further, the modular detection apparatus comprises: the detection shell is internally provided with a connecting plate and a sampling unit for detecting parameters of the connecting plate;

the detection shell is provided with a wire inlet end and a wire outlet end, one end of the connecting plate extends to the wire inlet end to be suitable for being connected with a load wire, and the other end of the connecting plate extends out of the wire outlet end to be suitable for being connected into a load interface of the isolating switch.

Furthermore, a positioning block is arranged on one surface of the wire outlet end of the detection shell and is spaced from the connecting plate extending out of the wire outlet end, and the positioning block is suitable for extending into a positioning groove of the shell of the isolating switch.

Furthermore, a part of the connecting plate, which extends out of the outlet end, is provided with a socket suitable for being matched with a fastener.

The technical scheme of the invention has the following advantages:

1. according to the isolating switch provided by the invention, the switch bodies are stacked up and down, the same side of each switch body is respectively connected with the modular detection device, and through the arrangement, each switch body is respectively detected by the modular detection device to detect power parameter data, so that the detection devices are favorably adapted to the switch bodies with different voltage loads, the connection assembly and maintenance of the detection devices are facilitated, in addition, the stacking arrangement is favorable for reducing the occupied space of the isolating switch and the detection devices, and the modular design is realized, so that the overall detection effect is improved.

2. According to the isolating switch provided by the invention, the control box and the driving device are arranged on the isolating switch, the driving device is linked with the operating mechanisms of the switch bodies, and when the control board in the control box detects abnormal current, the driving device is controlled to move, so that the switch bodies are subjected to circuit breaking operation, thereby being beneficial to reducing manual intervention, further protecting the switch bodies and avoiding further damage of the switch bodies.

3. According to the isolating switch provided by the invention, the detection device is provided with the wire inlet end and the wire outlet end, the wire outlet end is connected to the load interface of the isolating switch, the detection shell can be connected with the isolating switch, and the wire inlet end is connected with the load wire, so that the load wire is connected with the isolating switch through the modular detection device; and due to the modularized arrangement, the failure rate of the detection device is reduced, and the cost is saved.

4. According to the isolating switch provided by the invention, the feedback contact pin of the modular detection device is arranged on the clamping block, the feedback jack is arranged in the clamping groove, and the feedback contact pin is inserted into the feedback jack in the clamping process of the two detection shells, so that the assembling work is further facilitated, and the operation is simple and convenient.

5. According to the isolating switch provided by the invention, the two sides of the clamping block of the modular detection device are respectively provided with the first clamping ribs, the two side walls of the clamping groove are respectively provided with the second clamping ribs matched with the first clamping ribs, and after the clamping block is inserted into the clamping groove, the first clamping ribs and the second clamping ribs are matched and clamped, so that the clamping block is restrained from being separated from the clamping groove, and the fixing effect of the clamping block in the clamping groove is further improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a perspective view of one embodiment of a disconnector provided in an embodiment of the invention.

Fig. 2 is a perspective view of one embodiment of a modular detection apparatus provided in an embodiment of the present invention.

FIG. 3 is a perspective view of the modular detection apparatus of FIG. 2 from another angle.

FIG. 4 is a perspective view of a connection plate of the modular detection apparatus of FIG. 2.

Fig. 5 is a perspective view of the septum concealing control box housing in fig. 1.

Fig. 6 is a perspective view of the disconnector of fig. 1 without the modular detection device.

Description of reference numerals:

1. detecting the shell; 2. a switch body;

101. a connecting plate; 102. a wire inlet end; 103. a through hole; 104. a socket; 105. a feedback pin; 106. a feedback jack; 107. a clamping block; 108. a clamping groove; 109. a first clamping rib; 110. a second clamping rib; 111. positioning blocks;

201. positioning a groove; 202. a load interface; 203. a drive device; 204. a control box; 205. connecting grooves; 206. a receiving jack; 207. and a control panel.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

The embodiment provides an isolating switch, as shown in fig. 1, which includes a plurality of switch bodies 2, each switch body 2 is stacked up and down, a load interface 202 for connecting a load line is arranged on a side of each switch body 2, the load interface 202 on the same side of each switch body 2 is respectively connected with a modular detection device, and each modular detection device is sequentially connected up and down, so as to form a detection operation for each switch body 2. Through setting up from this, each switch body 2 is by a modularization detection device detection current respectively, is favorable to the switch body 2 of the different voltage loads of detection device adaptation to be convenient for detection device connection assembly and maintenance, thereby promote whole detection effect.

Here, the outlet end of the modular detection device and the inlet end 102 of the adjacent modular detection device are located on the same axis, that is, the outlet end and the outlet end of the adjacent modular detection device and the inlet end 102 of the adjacent modular detection device are arranged in a staggered manner, so that line interference in the assembly process is further reduced, and the assembly convenience is improved.

As shown in fig. 2 and fig. 3, the modularization detection apparatus described in this embodiment includes detecting shell 1, feedback pin 105 and feedback jack 106 have on detecting shell 1, a plurality of feedback pin 105 and feedback jack 106 that detect shell 1 can carry out the plug-in connection in proper order, still be equipped with joint piece 107 and joint groove 108 on detecting shell 1, a plurality of joint pieces 107 and joint groove 108 that detect shell 1 carry out the joint connection in proper order, because a plurality of detecting shells 1 can connect gradually, thereby make a plurality of detecting shells 1 become an integral module, occupation space has been reduced, and be convenient for assembly and work between each detecting shell 1.

As shown in fig. 4, the detection shell 1 of the present embodiment has a circuit connection board 101 and a sampling unit for detecting current therein, the detection shell 1 has a wire inlet end 102 and a wire outlet end, one end of the connection board 101 extends to the wire inlet end 102 to be suitable for being connected with a load line, and the other end of the connection board 101 extends out of the wire outlet end to be suitable for being connected in a load interface 202 of the disconnector. The adoption unit can adopt the existing mature current divider for acquiring power parameters, or a mutual inductor, a temperature probe and the like.

The connecting plate 101 can be made of a metal conductive material, one end of the connecting plate 101 corresponding to the incoming line end 102 is provided with a through hole 103 suitable for being matched with a fastener, a part of the connecting plate 101 extending out of the outgoing line end is provided with a socket 104 suitable for being matched with the fastener, and a load interface 202 wiring and a load line of the isolating switch are wound on the fastener to form connection between the connecting plate 101 and the isolating switch and a load. As an alternative embodiment, the two ends of the connection plate 101 may be provided in other shapes as long as a good wiring state is ensured.

In addition, in the embodiment, a positioning block 111 is disposed on one surface of the wire outlet end of the detection shell 1 at an interval from the connection plate 101 extending out of the wire outlet end, the positioning block 111 is located on the center line of the end surface of the detection shell 1, and the positioning block 111 is adapted to extend into the positioning groove 201 of the housing of the isolation switch. The positioning block 111 is arranged, so that the detection shell 1 can be conveniently and rapidly positioned and assembled on the isolating switch, the detection shell 1 is separated from the isolating switch in a one-step limiting mode, and a good restraining and fixing effect is achieved. As an alternative embodiment, the positioning blocks 111 may be provided in other numbers and shapes.

As shown in fig. 2 and fig. 3, the feedback pin 105 on the detecting shell 1 in this embodiment is used for feeding back the load current state, and is connected to the control device, the feedback jack 106 is used for receiving the feedback pin 105 on another detecting shell 1, the feedback pin 105 is disposed on the clamping block 107, and the feedback jack 106 is disposed in the clamping groove 108.

Specifically, joint piece 107 is from the lower surface downwardly protruding detection shell 1 that detects shell 1, joint groove 108 is from the upper surface undercut that detects shell 1 in detecting shell 1, the lower protruding portion of joint piece 107 divides the depressed part setting of size cooperation joint groove 108, when two detection shell 1 docks, the joint piece 107 that one detected shell 1 enters into another joint groove 108 that detects shell 1 downwards, and in this process, feedback contact pin 105 can insert and enter into to feedback jack 106, thereby form two butt joint connections and the electricity connection that detect shell 1.

As shown in fig. 3, as an alternative embodiment, relative to the end of the detection shell 1 corresponding to the insertion of the isolating switch, a portion of the clamping groove 108 located at the other end of the detection shell 1 is slotted, that is, the cross-sectional shape of the clamping groove 108 is "L" shaped, and the clamping block 107 is arranged corresponding to the shape of the clamping groove 108, when two detection shells 1 are butted, the clamping block 107 of one detection shell 1 is horizontally inserted into the clamping groove 108, and in this process, the feedback pin 105 on the clamping block 107 is inserted into the feedback jack 106 in the clamping groove 108. The horizontally inserted structure is convenient for assembly, reduces interference in the assembly process, and is beneficial to adjusting the position of the assembly detection shell 1, thereby being convenient for maintenance and reducing faults. It should be noted that the end faces of the two assembled detection shells 1 are located on the same plane, so that the occupied space of the detection device is further reduced, and the compact arrangement of the isolating switch and the detection device is facilitated.

As shown in fig. 2 and fig. 3, two sides of the clamping block 107 in this embodiment are respectively provided with a first clamping rib 109, two side walls of the clamping groove 108 are respectively provided with a second clamping rib 110 matched with the first clamping rib 109, an axis where the first clamping rib 109 is located is close to the clamping groove 108, and when the two detection shells 1 are butted, the first clamping rib 109 on the clamping block 107 crosses the second clamping rib 110 to enter the clamping groove 108, thereby preventing the clamping block 107 from accidentally breaking away from the plugging state due to external force vibration.

It should be noted that the abutting surfaces of the first clamping rib 109 and the second clamping rib 110 in the plugging process are preferably wedge surfaces, and the abutting surfaces of the first clamping rib 109 and the second clamping rib 110 in the pulling process are preferably vertical surfaces, so that the interference touch feeling in the plugging process is further reduced, and the limiting effect after plugging is improved.

As an alternative embodiment, the positions of the feedback pins 105 and the feedback jacks 106 on the clamping block 107 and the clamping slots 108 can be changed arbitrarily; the shape of the clamping block 107 can be prism-shaped in the figure, and can also be other shapes such as a cylinder or a prismoid shape; as another alternative embodiment, the feedback pin 105 and the feedback jack 106 are separately disposed on the detection shell 1, and the clamping block 107 and the clamping groove 108 are separately disposed on the detection shell 1, as long as it is ensured that after the feedback pin 105 is inserted into the feedback jack 106, the clamping block 107 and the clamping groove 108 are clamped to form a limiting effect.

As shown in fig. 5, the disconnector according to the present embodiment further includes a driving device 203, and the driving device 203 is linked to the operating mechanism of each switch body 2. Here, the driving device 203 is an existing rotating electrical machine, the operating mechanism of the switch body 2 may be a rotating shaft for operating the movable contact in the switch, and the pivot end of the rotating electrical machine is synchronously connected with the rotating shaft. As an alternative embodiment, the driving device 203 may also be driven by electromagnetic driving, or by gear transmission.

As shown in fig. 6, the isolating switch in this embodiment further includes a control box 204, the control box 204 is connected to the bottom of the switch body 2, the control box 204 has a control board 207 therein, the control box 204 has a connection slot 205 for connecting the clamping block 107 of the modular detection apparatus, the control box 204 further has a receiving receptacle 206 for connecting the feedback pin 105 of the modular detection apparatus, and the receiving receptacle is electrically connected to the control board 207. As an alternative embodiment, the aforementioned driving device 203 may be fitted into the control box 204 to further reduce the occupied space of the driving device 203.

Here, the control board 207 on the control box 204 may be an existing mature PLC board, an abnormal power parameter threshold is set in the control board 207, and the control board 207 may be configured to send an execution signal to the driving device 203 when the power parameter data received from the feedback pin 105 exceeds the abnormal power parameter threshold, so that the driving device 203 drives the rotating shaft to rotate, and the disconnecting switch is turned off. It should be noted that the power parameter data includes data such as current and voltage detected by sampling units such as a shunt and a transformer, and the abnormal power parameter threshold may be a residual current protection threshold, an overvoltage protection threshold, a leakage current protection threshold, an over-temperature protection threshold, an under-voltage protection threshold, and the like, which is not limited specifically.

The connecting groove 205 is preferably the same as the clamping groove 108 in structural shape, and a clamping rib structure corresponding to the first clamping rib 109 of the clamping block 107 is disposed in the connecting groove 205. As an alternative embodiment, the connecting slot 205 can be provided with other shapes as long as the receiving receptacle 206 for receiving the clip block 107 and inserting the feedback pin 105 into the connecting slot 205 can be accommodated.

According to the isolating switch provided by the embodiment, the modularized detection devices are respectively arranged on the switch bodies 2 of each layer, so that each detection device can be adapted to the switch bodies 2 with different voltage loads, and the current and voltage detection of the isolating switch is facilitated; in addition, the detection shell 1 after the butt joint assembly is finally inserted into the connecting groove 205 of the control box 204, so that the control box 204, the detection shell 1 and the driving device 203 are integrated, the modular design of the isolating switch is facilitated, the occupied space can be reduced, and the using effect of the isolating switch is improved.

The assembling process comprises the following steps:

correspondingly extending the positioning block 111 of the detection shell 1 into the positioning groove 201 to form primary positioning of the detection shell 1 on the isolating switch;

two ends of the connecting plate 101 are respectively and electrically connected to a load line and a load interface 202 of the isolating switch, and the feedback pin 105 is inserted into external control equipment;

horizontally inserting a clamping block 107 of another detection shell 1 into a clamping groove 108 of the detection shell 1, and inserting a feedback pin 105 into a feedback jack 106 of the detection shell 1;

one end of the connecting plate 101 of the butted detection shell 1 is electrically connected to the load interface 202 of the adjacent layer disconnecting switch, and the other end is electrically connected to another load line.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims

1. A disconnector, comprising:

the switch comprises a switch body (2), a plurality of switch bodies are stacked up and down, a load interface (202) used for connecting a load line is arranged on the side edge of each switch body (2), and a modularized detection device is connected to the load interface (202) on the same side of each switch body (2); the modularized detection device is used for detecting the electric parameter data of each switch body.

2. The isolation switch of claim 1, further comprising: and the control box (204) is connected to one side of the switch body (2), and a control board (207) in the control box (204) is used for receiving the power parameter data detected by the modularized detection device.

3. The isolation switch of claim 2, further comprising: a drive device (203) which is linked with the operation mechanism of each switch body (2); an abnormal power parameter threshold value is arranged in the control panel (207), and the control panel (207) controls the driving device (203) to move when the power parameter data exceeds the abnormal power parameter threshold value.

4. The isolating switch according to claim 2 or 3, wherein each modular detection device is provided with a feedback pin (105), the control box (204) is provided with a connecting slot (205) for connecting with the clamping block (107) of the modular detection device, the control box (204) is further provided with a receiving socket (206) for connecting with the feedback pin (105) of the modular detection device, and the receiving socket (206) is electrically connected with the control board (207).

5. A disconnector according to claim 2 or 3, characterized in that each modular detection unit is provided with a feedback socket (106), that each modular detection unit is also arranged one above the other, that the feedback pin (105) of each modular detection unit arranged adjacently is inserted into the feedback socket (106) of the other modular detection unit, and that the feedback pin (105) of each modular detection unit located next to the control box (204) is inserted into the receiving socket (206).

6. The isolating switch according to claim 5, characterized in that the modular detection device is provided with adaptive snap-in blocks (107) and snap-in grooves (108), the feedback pins (105) are arranged on the snap-in blocks (107), and the feedback jacks (106) are arranged in the snap-in grooves (108).

7. The isolating switch according to claim 6, wherein first clamping ribs (109) are respectively arranged on two sides of the clamping block (107), and second clamping ribs (110) matched with the first clamping ribs (109) are respectively arranged on two side walls of the clamping groove (108).

8. The disconnector according to claim 1, characterized in that the modular detection means comprise: the detection shell (1) is internally provided with a connecting plate (101) and a sampling unit for detecting parameters of the connecting plate;

the detection shell (1) is provided with a wire inlet end (102) and a wire outlet end, one end of the connecting plate (101) extends to the wire inlet end (102) to be suitable for being connected with a load wire, and the other end of the connecting plate (101) extends out of the wire outlet end to be suitable for being connected into a load interface (202) of the isolating switch.

9. The isolating switch according to claim 8, characterized in that a positioning block (111) is arranged on one surface of the outlet end of the detection shell (1) at a distance from the connecting plate (101) extending out of the outlet end, and the positioning block (111) is adapted to extend into a positioning groove (201) of the shell of the isolating switch.

10. A disconnector according to claim 8 or 9, characterized in that the portion of the web (101) projecting beyond the outlet end is provided with a socket (104) adapted to cooperate with a fastener.