Change-over switch capable of rapid exchange and detection

Abstract

The invention discloses a change-over switch capable of rapid exchange and detection. Comprising a panel, a conversion plug-in body, a switch body and a plug-in type wiring terminal. According to the utility model, through mutual cooperative connection, switch exchange within one minute in front of an electrical control cabinet screen can be realized under the condition that a back cabinet door of the electrical control cabinet is not opened, and the change condition of the voltage of each change-over switch control line can be detected at any time in front of the electrical control cabinet screen. The use of the change-over switch provides great convenience for the use of the change-over switch in the maintenance or repair work in the power transmission industry, such as power supply stations, transformer substations and other places. Not only are the working intensity and difficulty of maintenance or first-aid repair personnel obviously reduced, but also powerful support is provided for ensuring stable transmission of electric power.

Description

Technical Field

[0001] The invention belongs to the technical field of switch devices, and in particular relates to a conversion switch capable of rapid replacement and detection. Background Art

[0002] In the power transmission industry (such as power supply stations, substations, etc.), maintenance and periodic control equipment replacement are often encountered. Since the manual control equipment is installed on the front panel of the electrical control cabinet, some large electrical control equipment and a large number of connecting wires and wire fixing brackets are installed in the space behind the manual control equipment. Under such influence, if the manual control equipment is to be maintained, measured and replaced, part of the influencing device must be removed before it can be implemented, which is time-consuming, labor-intensive and very inconvenient. This is particularly obvious during emergency repairs.

[0003] A transfer switch is a low-voltage switch used to switch multiple circuits. It is operated by rotating to connect or disconnect the moving contact and the static contact, thereby switching the circuit. The transfer switch has the advantages of multiple contacts, multiple positions, small size, reliable performance, easy operation, and flexible installation. It is widely used in machine tool electrical control circuits, power supply introduction switches, motor control and other fields. However, conventional transfer switches do not match the functions of efficient replacement and monitoring in complex circuit electrical equipment environments. Therefore, there is an urgent need for an equipment structure to meet the efficient and convenient replacement and detection needs of the power transmission industry. Summary of the invention

[0004] Purpose of the invention: To solve the problems mentioned in the background technology, the present invention discloses a switching switch that can be quickly replaced and tested, including a panel, a conversion plug-in body, a switch body and plug-in terminals. Through mutual cooperation and connection, the switching switch can be replaced in front of the electrical installation cabinet and the voltage of the switching switch control line can be detected.

[0005] Technical solution:

[0006] The invention discloses a transfer switch capable of rapid exchange and detection, comprising: a panel, a transfer plug-in body, a switch body and a plug-in terminal;

[0007] The conversion plug-in body comprises a plurality of conversion plug pins, the first ends of the conversion plug pins being fixedly connected to the switch body via connection screws arranged on the switch body. After the relative positions of the conversion plug-in body and the switch body are fixed, the conversion plug-in body is installed behind the panel; the plug-in terminal is inserted and installed at the rear of the conversion plug body via conversion plug holes arranged thereon and engaged one-to-one with the second ends of the conversion plug pins.

[0008] Preferably, the conversion switch further comprises a mounting cabinet panel, the plug-in terminal block is fixed to the inner wall of the mounting cabinet panel by screws, and the panel is fixed to the outer wall of the mounting cabinet panel by screws.

[0009] Preferably, the exposed length of the second end of the conversion plug pin is 6.2 mm, which facilitates stable engagement with the conversion plug hole.

[0010] Preferably, the panel is provided with a plurality of first test holes, the front part of the conversion plug-in body is provided with a plurality of second test holes corresponding one-to-one to the conversion plug pins, and the first test holes and the second test holes are axially coincident.

[0011] Preferably, the aperture tolerance of the second test hole and the first test hole meets the requirements of the standard rod insertion detection;

[0012] Preferably, a label strip is provided above the panel test hole, the number on the label strip corresponds one-to-one with the number on the wiring screw, and the switch characteristic table pasted on the panel corresponds one-to-one with the switch body measurement.

[0013] Preferably, the present invention further discloses a conversion switch rapid replacement and detection steps as follows:

[0014] Replacement: When the switch needs to be replaced, unscrew the screws that fix the panel and the cabinet screen, then you can pull out the switch body and the conversion plug-in body and replace them with new ones, and tighten the screws that fix the panel and the cabinet screen to complete the replacement;

[0015] Detection: When an abnormality occurs in the line, insert the marking rod through the first test hole marked on the panel, and then the marking rod contacts the conversion pin with the corresponding number through the second test hole for detection.

[0016] Beneficial effects:

[0017] 1. The present invention realizes the rapid disassembly and assembly of the switch assembly through the split design (switch body + conversion plug-in body) and the plug-in terminal engagement structure, combined with the internal and external layered fixing method of the installation cabinet screen. Compared with the traditional welded switch, the maintenance can avoid the complicated disassembly steps, further speed up the maintenance efficiency, and significantly shorten the equipment downtime.

[0018] 2. The present invention adopts the design of the test holes with coincident axes, so that when an abnormality occurs in the line, the operator can insert the mark stick through the first test hole on the panel and directly test the conversion plug-in body without disassembling the switch body and the conversion plug-in body, thereby reducing the cumbersome steps in the detection process, improving the detection efficiency, being able to quickly and accurately find the line fault point, and carry out repairs in time, thereby ensuring the normal operation of the circuit system.

[0019] 3. The exposed length of the second end of the conversion plug pin is 6.2 mm. This specific length design facilitates stable engagement with the conversion plug hole, ensuring the reliability of the connection between the plug-in terminal and the conversion plug body. The stable connection can ensure the stability of current transmission, reduce circuit failures caused by loose connections, and improve the electrical performance and service life of the conversion switch. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is the overall structure diagram of the present invention;

[0021] Figure 2 It is a structural exploded view of the present invention;

[0022] Figure 3 This is a combined structural diagram of the switch body and the conversion plug-in body of the present invention;

[0023] Figure 4 This is a schematic diagram of the conversion plug connection of the present invention.

[0024] In the figure, 1 is a panel, 11 is a first test hole, 2 is a conversion plug-in body, 21 is a conversion plug pin, 211 is a first end of the conversion plug pin, 212 is a second end of the conversion plug pin, 22 is a second test hole, 3 is a switch body, 31 is a wiring screw, 4 is a plug-in terminal, 41 is a conversion plug hole, and 5 is an installation cabinet screen. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0026] like Figures 1 to 4 As shown, the present invention discloses a transfer switch capable of rapid exchange and detection, comprising: a panel 1, a transfer plug-in body 2, a switch body 3 and a plug-in terminal 4;

[0027] The conversion plug-in body 2 includes a plurality of conversion plug pins 21, the first ends 211 of the conversion plug pins are fixedly connected to the switch body 3 via connection screws 31 provided on the switch body 3, and the conversion plug-in body 2 is installed behind the panel 1 after the relative positions of the switch body 3 are fixed; the plug-in terminal 4 is inserted and installed at the rear of the conversion plug body 2 via a conversion plug hole 41 provided thereon and engaged one-to-one with the second ends 212 of the conversion plug pins.

[0028] The rapidly replaceable and detectable switching switch designed in the present invention also includes a mounting cabinet panel 5, the plug-in terminal block 4 is fixed to the inner wall of the mounting cabinet panel by screws, and the panel 1 is fixed to the outer wall of the mounting cabinet panel by screws.

[0029] The exposed length of the second end of the conversion plug pin 21 is 6.2 mm, which is convenient for stable engagement with the conversion plug hole. If the exposed length of the conversion plug pin is too short, it will cause a series of serious problems. Due to the insufficient length, it is difficult for the second end of the conversion plug pin to fully engage with the conversion plug hole provided on the plug-in terminal. In this case, the contact area of ​​the electrical connection will be greatly reduced, resulting in an increase in contact resistance. This will not only increase the energy loss during power transmission, but may also cause local overheating, and in severe cases may even burn the plug-in part, leading to equipment failure. In addition, poor contact will also make signal transmission unstable, causing detection failure problems, affecting the normal use of the equipment and the accuracy of the data.

[0030] If the exposed length of the conversion plug pin 21 is too long, the risk of the conversion plug pin being hit and pulled by external forces during operation may increase. Once subjected to external forces, the conversion plug pin may bend, deform or even break, thereby destroying its normal structure and function. In addition, excessive exposure may also cause unnecessary contact between the conversion plug pin and surrounding components, causing faults such as short circuits. At the same time, the excessively long exposed part is also prone to accumulate dust, debris, etc. during the operation of the equipment, affecting its insulation performance and increasing the possibility of electrical accidents. In order to ensure the stability and reliability of the equipment, the exposed length of the conversion plug pin must be strictly controlled to keep it within an appropriate range to avoid various problems caused by improper exposure length.

[0031] The panel 1 is provided with a plurality of first test holes 11, and the front part of the conversion plug body 2 is provided with a plurality of second test holes 22 corresponding to the conversion plug pins one by one. The first test hole 11 and the second test hole 22 are axially coincident, and the aperture tolerance of the second test hole 22 and the first test hole 11 meets the insertion detection requirement of the standard rod. When the equipment needs to be repaired, the staff inserts the standard rod into the corresponding test hole, and then contacts the corresponding conversion plug pin to achieve the purpose of rapid troubleshooting. In order to further facilitate the test personnel to accurately locate and record the fault location, this embodiment labels each test hole according to the order in which each conversion plug pin is connected to the switch body. The number of the panel test hole label strip is consistent with the number of the switch body wiring screw, and corresponds one to one. The switch characteristic table pasted on the panel is consistent with the switch body measurement, and corresponds one to one. That is, the panel is pasted with a schematic diagram of the on-off of the switch contacts in different operating positions, which is consistent with the on-off requirements of the switch body contacts and corresponds one to one.

[0032] By marking and sticking tables, staff errors can be reduced and maintenance efficiency can be further accelerated.

[0033] In addition, this embodiment also discloses a method for replacing and detecting a conversion switch that can be quickly replaced and detected;

[0034] The switch switching method is as follows:

[0035] When the switch needs to be replaced, unscrew the screws that fix the panel and the cabinet screen, then pull out the switch body and the conversion plug-in body and replace them with new ones, and tighten the screws that fix the panel and the cabinet screen to complete the replacement;

[0036] Detection: When an abnormality occurs in the line, insert the marking rod through the first test hole marked on the panel, and then the marking rod contacts the conversion pin with the corresponding number through the second test hole for detection.

[0037] The above description of the embodiments enables professionals and technicians in the field to implement or use the present invention. Various modifications to the embodiments will be apparent to professionals and technicians. The general principles of the present invention can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention should not be limited to the embodiments shown herein, but should cover the widest range consistent with the principles and novel features disclosed in the present invention.

Claims

1. A transfer switch capable of rapid exchange and detection, characterized in that: include: A panel (1), a conversion plug-in body (2), a switch body (3) and a plug-in terminal (4); The conversion plug-in body (2) comprises a plurality of conversion plug pins (21), the first ends (211) of the conversion plug pins being fixedly connected to the switch body (3) via connection screws (31) provided on the switch body (3), and the conversion plug-in body (2) and the switch body (3) being fixed in relative position and then installed behind the panel (1); the plug-in terminal (4) is inserted and installed at the rear of the conversion plug body (2) via conversion plug holes (41) provided thereon and meshing one-to-one with the second ends (212) of the conversion plug pins.

2. The fast-changeable and detectable transfer switch according to claim 1, characterized in that: The conversion switch also includes a mounting cabinet panel (5), the plug-in terminal block (4) is fixed to the inner wall of the mounting cabinet panel by means of screws, and the panel (1) is fixed to the outer wall of the mounting cabinet panel by means of screws.

3. The fast-changeable and detectable transfer switch according to claim 1, characterized in that: The exposed length of the second end of the conversion plug pin (21) is 6.2 mm, which facilitates stable engagement with the conversion plug hole.

4. The fast-changeable and detectable transfer switch according to claim 1, characterized in that: The panel (1) is provided with a plurality of first test holes (11), the front portion of the conversion plug-in body (2) is provided with a plurality of second test holes (22) corresponding one-to-one to the conversion plug-in pins, and the first test holes (11) and the second test holes (22) are axially coincident.

5. The fast-changeable and detectable transfer switch according to claim 4, characterized in that: The hole diameter tolerance of the second test hole (22) and the first test hole (11) is matched to meet the requirements of standard rod insertion detection.

6. The fast-changeable and detectable transfer switch according to claim 5, characterized in that: There is a label strip above the panel test hole. The number on the label strip corresponds to the number of the wiring screw. The switch characteristic table pasted on the panel corresponds to the switch body measurement.

7. The rapidly replaceable and detectable conversion switch according to any one of claims 1 to 6, characterized in that: The steps of quick switching and testing of the conversion switch are as follows: Replacement: When the switch needs to be replaced, unscrew the screws that fix the panel and the cabinet screen, then you can pull out the switch body and the conversion plug-in body and replace them with new ones, and tighten the screws that fix the panel and the cabinet screen to complete the replacement; Detection: When an abnormality occurs in the line, insert the marking rod through the first test hole marked on the panel, and then the marking rod contacts the conversion pin with the corresponding number through the second test hole for detection.

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