DE202023104030U1 - A new type of universal current clamp with self-short circuit function - Google Patents

Abstract

A novel universal power clamp with self-shorting function, characterized in that it comprises a power clamp mechanism (100) which includes a power clamp insulating plate (101), a square hole (102), a rectangular recess (103), a movable insulating plate (104), a conductive block (105) and a conductive slider (106), the square hole (102) being provided in the center of the surface of the power terminal insulating plate (101), further the rectangular recess (103) on the surface of the power terminal insulating plate (101). Insulating plate (101) is provided, the rectangular recess (103) is located on the inside of the square hole (102), furthermore the movable insulating plate (104) is housed in the cavity of the rectangular recess (103), the conductive block (105). the outside of the power terminal insulating plate (101) is fixedly arranged and the conductive slider (106) is slidably mounted on the inside of the conductive block (105).

Description

Field of invention

The present invention relates to the technical field of maintenance of electrical installations in power supply systems and in particular to a novel universal power clamp with self-shorting function.

State of the art

1. 1. Die Prüfbuchse für Stromklemmen ist nach wiederholtem Gebrauch anfällig für Verformung und Ausdehnung, sodass die Kurzschlussdrähte nicht fest eingesteckt werden können, locker sind und einen schlechten Kontakt haben;
2. 2. Bei der Verwendung von Kurzschlussdrähten besteht ein potenzielles Sicherheitsrisiko. Während der Mantel eines Kurzschlussdrahts normal sein kann, kann aber tatsächlich der innere Kupferdraht getrennt sein. Die Verwendung eines solchen Kurzschlussdrahts kann zu einem offenen Stromkreis führen;
3. 3. Es besteht ein potenzielles Sicherheitsrisiko, dass der Kurzschlussdraht versehentlich herausgezogen wird. Da der Kurzschlussdraht nicht befestigt ist, kann das Personal bei Wartungsarbeiten versehentlich den Kurzschlussdraht berühren und dadurch abziehen, was zu einem Öffnen des Sekundärstromkreises führt.

The secondary circuit must not be open in the power system. This is because after the secondary circuit is opened, a relatively high voltage is generated on the secondary side of the current transformer. At the same time, the iron core can easily overheat, causing damage to the insulation of the primary and secondary windings, posing a great danger to the safety of people and equipment. Therefore, the secondary circuit may only be short-circuited and not open. During the operation of the device, the secondary circuit often needs to be short-circuited due to device failure, periodic inspection, etc. The current common method is to use a shorting wire inserted into the power terminal test socket for a short connection. However, this method has the following disadvantages:

1. 1. The power terminal test socket is prone to deformation and expansion after repeated use, so the short-circuit wires cannot be inserted tightly, are loose and have poor contact;
2. 2. There is a potential safety risk when using short-circuit wires. While the jacket of a shorting wire may be normal, the inner copper wire may actually be separated. Using such a short-circuit wire may result in an open circuit;
3. 3. There is a potential safety risk of the shorting wire being accidentally pulled out. Since the short-circuit wire is not secured, personnel during maintenance work may accidentally touch and disconnect the short-circuit wire, resulting in the secondary circuit opening.

Task of the invention

The purpose of this section is to outline some aspects of the embodiments of the present invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract and title of the present invention, which are not intended to obscure the purpose of this section, the abstract and the title. However, such simplification or omission is not intended to limit the scope of the present invention.

In view of the above and/or existing problems in existing power systems, the present invention is proposed.

The problem to be solved by the present invention is therefore how to provide a novel universal power clamp with self-shorting function.

• einen Stromklemmenmechanismus, der eine Stromklemmen-Isolierplatte, ein quadratisches Loch, eine rechteckige Ausnehmung, eine bewegliche Isolierplatte, einen leitfähigen Block und einen leitfähigen Schieber umfasst, wobei das quadratische Loch in der Mitte der Oberfläche der Stromklemmen-Isolierplatte vorgesehen ist, ferner die rechteckige Ausnehmung auf der Oberfläche der Stromklemmen-Isolierplatte vorgesehen ist, sich die rechteckige Ausnehmung auf der Innenseite des quadratischen Lochs befindet, ferner die bewegliche Isolierplatte im Hohlraum der rechteckigen Ausnehmung untergebracht ist, der leitfähige Block auf der Außenseite der Stromklemmen-Isolierplatte fest angeordnet ist und der leitfähige Schieber gleitbar auf der Innenseite des leitfähigen Blocks angebracht ist.

In order to solve the above technical problem, the present invention provides the following technical solutions: A novel universal power clamp with self-shorting function, comprising:

• a power terminal mechanism including a power terminal insulating plate, a square hole, a rectangular recess, a movable insulating plate, a conductive block and a conductive slider, the square hole being provided in the center of the surface of the power terminal insulating plate, and the rectangular recess is provided on the surface of the power terminal insulating plate, the rectangular recess is located on the inside of the square hole, further the movable insulating plate is accommodated in the cavity of the rectangular recess, the conductive block is fixedly arranged on the outside of the power terminal insulating plate and the conductive Slider is slidably mounted on the inside of the conductive block.

Based on the above technical features, the technical solution of the present invention uses this current clamp mechanism. When the maintenance of power equipment requires the circuit to be short-circuited, the self-short-circuiting function can already be realized only by simple normal operation without using short-circuiting wires. There are no safety problems such as loose insertion, detachment or accidental unplugging of the short-circuit wires. Contact only needs to be made on the silver-plated spring strips of two adjacent power terminals and conductivity must be ensured so that a self-short circuit can be realized in the phase current circuit. The operation is more convenient.

As a preferred solution for the novel universal current clamp with self-shorting function according to the invention, the size of the movable insulating plate is smaller than that of the rectangular recess, the rectangular recess and the movable insulating plate being coordinated with one another so that they can slide against one another.

Based on the above technical features, the movable insulation plate can slide back and forth in the rectangular recess to cover or expose the square hole.

As a preferred solution for the novel universal current clamp according to the invention with self-shorting function, the square hole runs through the rectangular recess, the depth of the rectangular recess being 1 mm.

Based on the above technical features, the square hole passes through the rectangular recess, which is advantageous for self-shorting.

As a preferred solution of the novel universal power clamp with self-shorting function according to the invention, the front end of the movable insulating plate is provided with positioning holes at the top and bottom, and the thickness of the movable insulating plate is 0.9 mm.

Based on the above technical features, the thickness of the movable insulating plate is slightly smaller than the depth of the rectangular recess, ensuring that the movable insulating plate is always in the rectangular recess when sliding.

As a preferred solution for the novel universal current clamp according to the invention with self-shorting function, spring bands are attached to two sides of the conductive block, with the spring bands being shaped outwards in the overall design.

Based on the above technical features, when two current terminals are joined side by side, reliable contact can be ensured by the spring bands, and thus self-short circuit can be easily realized in the phase current circuit.

As a preferred solution for the novel universal current clamp according to the invention with self-shorting function, the spring bands are silver-plated spring bands.

Based on the above technical characteristics, the conductivity of silver-plated spring strips is better than that of ordinary copper sheets.

As a preferred solution of the novel universal current clamp with self-shorting function according to the invention, the positions of the spring bands and the position of the square hole are coordinated with one another, with the spring bands and the square hole being on the same horizontal line.

Based on the above technical characteristics, when the square hole is exposed during the maintenance work on power equipment, the spring bands may pop out of the square hole, causing the spring bands of two adjacent power terminals to also come into contact with each other.

As a preferred solution for the novel universal current clamp with self-shorting function according to the invention, the inside of the conductive slider is provided with positioning projections at the top and bottom, the positions of the positioning projections corresponding to the positions of the positioning holes.

Based on the above technical features, the positions of the positioning projections correspond to the positions of the positioning holes, enabling quick and practical disassembly and assembly of the conductive slider.

As a preferred solution of the novel universal current clamp with self-shorting function according to the invention, the positioning projections are firmly connected to the positioning holes by insertion.

Based on the above technical features, after the positioning projections are inserted into the positioning holes, when the conductive slider moves, the movable insulating plate can also be moved at the same time, so that the spring bands located on two sides are easily separated from each other by the movable insulating plate.

As a preferred solution for the novel universal current clamp according to the invention with self-shorting function, a push handle is arranged at the upper end of the conductive slide, with an insulating rubber block being used as the push handle.

Based on the above technical characteristics, when servicing power equipment, the conductive slider can be pushed by the push handle. Because the push handle is made of insulating material, the risk of electric shock can be reduced.

The advantageous effects of the present invention are that this current clamp mechanism is used for the technical solution of the present invention. When the maintenance of power equipment requires the circuit to be short-circuited, the self-short-circuiting function can already be realized only by simple normal operation without using short-circuiting wires. There are no safety problems such as loose insertion, detachment or accidental unplugging of the short-circuit wires. Contact only needs to be made on the silver-plated spring strips of two adjacent power terminals and conductivity must be ensured so that a self-short circuit can be realized in the phase current circuit. The operation is more convenient.

Brief description of the drawings

• 1 zeigt eine Ansicht des quadratischen Lochs der neuartigen Universal-Stromklemme mit Selbstkurzschlussfunktion im offenen Zustand;
• 2 zeigt eine Ansicht des quadratischen Lochs der neuartigen Universal-Stromklemme mit Selbstkurzschlussfunktion im geschlossenen Zustand;
• 3 zeigt eine Ansicht der Anbringungspositionen des quadratischen Lochs und der beweglichen Isolierplatte der neuartigen Universal-Stromklemme mit Selbstkurzschlussfunktion;
• 4 zeigt eine Schnittansicht entlang der Schnittlinie A-A der neuartigen Universal-Stromklemme mit Selbstkurzschlussfunktion gemäß 1;
• 5 zeigt eine Ansicht der Verbindung des leitfähigen Blocks und des leitfähigen Schiebers der neuartigen Universal-Stromklemme mit Selbstkurzschlussfunktion.

For a better understanding of the technical solutions according to the exemplary embodiments of the invention, the drawings according to the exemplary embodiments of the invention are briefly described below. It will be appreciated that the drawings illustrate only some embodiments of the present invention and that one skilled in the art can obtain other drawings based on these drawings without any creative effort.

• 1 shows a view of the square hole of the novel universal power clamp with self-shorting function in the open state;
• 2 shows a view of the square hole of the novel universal power clamp with self-shorting function in the closed state;
• 3 shows a view of the mounting positions of the square hole and the movable insulating plate of the novel universal power clamp with self-shorting function;
• 4 shows a sectional view along the section line AA of the new universal current clamp with self-shorting function 1 ;
• 5 shows a view of the connection of the conductive block and the conductive slider of the novel universal current clamp with self-shorting function.

Reference symbol list

100

Power clamp mechanism

101

Power terminal insulation plate

102

square hole

103

rectangular recess

104

movable insulation plate

104a

Positioning hole

105

conductive block

105a

Spring ribbon

106

conductive slider

106a

Positioning lead

106b

Push handle

Detailed description of the exemplary embodiments

For a better understanding of the objects, technical features and advantages of the present invention, the preferred embodiments are described in detail below with reference to the accompanying drawings.

In the following detailed description of the subject technology, many specific details are set forth to provide a better understanding of the subject technology. It should be understood, however, that the present invention may be implemented in ways other than those described herein. Numerous changes may be made to the disclosed embodiments by one skilled in the art without departing from the spirit or scope of this invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

Additionally, “an embodiment” or “embodiments” referred to herein refers to at least one particular feature, structure, or property. The phrase “in one embodiment,” which appears in various places throughout this specification, does not always refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

Example 1

• einen Stromklemmenmechanismus 100, der eine Stromklemmen-Isolierplatte 101, ein quadratisches Loch 102, eine rechteckige Ausnehmung 103, eine bewegliche Isolierplatte 104, einen leitfähigen Block 105 und einen leitfähigen Schieber 106 umfasst, wobei das quadratische Loch 102 in der Mitte der Oberfläche der Stromklemmen-Isolierplatte 101 vorgesehen ist, ferner die rechteckige Ausnehmung 103 auf der Oberfläche der Stromklemmen-Isolierplatte 101 vorgesehen ist, sich die rechteckige Ausnehmung 103 auf der Innenseite des quadratischen Lochs 102 befindet, ferner die bewegliche Isolierplatte 104 im Hohlraum der rechteckigen Ausnehmung 103 untergebracht ist, der leitfähige Block 105 auf der Außenseite der Stromklemmen-Isolierplatte 101 fest angeordnet ist und der leitfähige Schieber 106 gleitbar auf der Innenseite des leitfähigen Blocks 105 angebracht ist. Für die technische Lösung der vorliegenden Erfindung wird dieser Stromklemmenmechanismus 100 verwendet. Wenn die Wartung von Stromversorgungsausrüstungen einen Kurzschluss des Stromkreises erfordert, kann die Selbstkurzschlussfunktion bereits nur durch einfachen Normalbetrieb ohne Einsatz von Kurzschlussdrähten realisiert werden. Hierbei treten keine Sicherheitsprobleme wie lockeres Einstecken, Loslösen oder versehentliches Herausziehen der Kurzschlussdrähte auf. Es müssen nur bei den versilberten Federbändern zweier benachbarter Stromklemmen der Kontakt hergestellt und die Leitfähigkeit gewährleistet sein, damit beim Stromkreis des Phasenstroms ein Selbstkurzschluss realisiert werden kann. Die Bedienung ist bequemer.

It will be on the 1 until 3 Reference is made to show a first embodiment of the present invention. The embodiment provides a novel universal power clamp with self-shorting function, which includes:

• a power clamp mechanism 100 comprising a power clamp insulating plate 101, a square hole 102, a rectangular recess 103, a movable insulating plate 104, a conductive block 105 and a conductive slider 106, the square hole 102 being in the center of the surface of the power clamp Insulating plate 101 is provided, further the rectangular recess 103 is provided on the surface of the power terminal insulating plate 101, the rectangular recess 103 is located on the inside of the square hole 102, further the movable insulating plate 104 is accommodated in the cavity of the rectangular recess 103, the conductive block 105 is fixedly disposed on the outside of the power terminal insulating plate 101 and the conductive slider 106 is slidably mounted on the inside of the conductive block 105. For the technical solution of the present invention, this current clamp mechanism 100 is used. When the maintenance of power equipment requires the circuit to be short-circuited, the self-short-circuiting function can already be realized only by simple normal operation without using short-circuiting wires. There are no safety problems such as loose insertion, detachment or accidental unplugging of the short-circuit wires. Contact only needs to be made on the silver-plated spring strips of two adjacent power terminals and conductivity must be ensured so that a self-short circuit can be realized in the phase current circuit. The operation is more convenient.

Example 2

It will be on the 3 until 5 Reference is made to show a second embodiment of the present invention. The difference from the first embodiment is that the size of the movable insulating plate 104 is smaller than that of the rectangular recess 103, the rectangular recess 103 and the movable insulating plate 104 being matched to one another so that they can slide against each other to cover or expose the square hole 102, the movable insulating plate 104 slides back and forth in the rectangular recess 103, the square hole 102 runs through the rectangular recess 103 and the depth of the rectangular recess 103 is 1 mm. The square hole 102 runs through the rectangular recess 103, which is advantageous for self-shorting. The front end of the movable insulation plate 104 is provided with positioning holes 104a at the top and bottom, the thickness of the movable insulation plate 104 is 0.9 mm, the thickness of the movable insulation plate 104 is slightly smaller than the depth of the rectangular recess 103, and it is ensured that the movable insulating plate 104 is always in the rectangular recess 103 when sliding.

The inside of the conductive slider 106 is provided with positioning projections 106a at the top and bottom, the positions of the positioning projections 106a corresponding to the positions of the positioning holes 104a. By making the positions of the positioning projections 106a correspond to the positions of the positioning holes 104a, quick and practical disassembly and assembly of the conductive slider 106 can be achieved. The positioning projections 106a are fixedly connected to the positioning holes 104a by insertion. After the positioning projections 106a are inserted into the positioning holes 104a, when the conductive slider 106 moves, the movable insulating plate 104 can also be moved simultaneously, so that the spring bands 105a located on two sides are easily separated from each other by the movable insulating plate 104.

A push handle 106b is arranged at the upper end of the conductive slider 106. An insulating rubber block is used as the push handle 106b. When servicing power equipment, the conductive slider 106 can be pushed by the push handle 106b. Since the push handle 106b is made of insulating material, the risk of electric shock can be reduced.

Example 3

It will be on the 1 and 5 Reference is made to show a third embodiment of the present invention. The difference from the two previous embodiments is that spring bands 105a are attached to two sides of the conductive block 105, the spring bands 105a being silver-plated spring bands. The conductivity of silver-plated spring strips is better than that of ordinary copper sheets. The spring bands 105a are shaped outwards in the overall design, so that when two current terminals are put together next to each other, reliable contact is ensured by the spring bands 105a and thus a self-short circuit can be easily realized in the phase current circuit.

The positions of the spring bands 105a and the position of the square hole 102 are aligned with each other, with the spring bands 105a and the square hole 102 being on the same horizontal line. If during maintenance If the square hole 102 is exposed on power supply equipment, the spring bands 105a can protrude from the square hole 102, whereby the spring bands 105a of two adjacent power terminals also come into contact with one another.

Working principle: When operating the device, the conductive slider 106 located in the middle of the power terminals is moved to the location where the terminals are separated to connect the inside and outside of a power terminal together. An electrically conductive connection is normally made at the power terminals. At the same time, the movable insulating plate 104 is moved to the center of the terminals by driving the positioning projections 106a, thereby closing the square hole 102 located in the center of the power terminal insulating plate 101 and separating the spring bands 105a from each other. When servicing equipment, the conductive slider 106 located in the center of the power terminals is moved to the outside of the terminals, separating the inside and outside of the power terminals. At the same time, the movable insulating plate 104 is moved away, so that the square hole 102 located in the middle of the current terminal insulating plate 101 is opened and the spring bands 105a of two adjacent current terminals come into contact with each other, thereby realizing a self-short circuit in the phase current circuit.

It should be noted that the above embodiments serve only to illustrate the technical solutions of the present invention and do not limit them. Although the invention is disclosed in the above preferred embodiment, it does not limit the present invention. Numerous changes may be made to the disclosed embodiments by one skilled in the art without departing from the spirit or scope of this invention. All equivalent modifications and equivalent changes that may be made in accordance with the technical principles of the present invention fall within the scope of the present invention.

The present invention discloses a novel universal power clamp with self-shorting function relating to the technical field of electrical equipment maintenance in power systems, comprising a power clamp mechanism including a power clamp insulating plate, a square hole, a rectangular recess, a movable insulating plate, a conductive block and a conductive slider, wherein the square hole is provided in the center of the surface of the power terminal insulating plate, further the rectangular recess is provided on the surface of the power terminal insulating plate, the rectangular recess is on the inside of the square hole, further the movable Insulating plate is housed in the cavity of the rectangular recess, the conductive block is fixedly arranged on the outside of the power terminal insulating plate, and the conductive slider is slidably mounted on the inside of the conductive block. For the technical solution of the present invention, this current clamp mechanism is used. When the maintenance of power supply equipment requires the circuit to be short-circuited, the self-short-circuiting function can already be realized only by simple normal operation without using short-circuiting wires. There are no safety problems such as loose insertion, detachment or accidental unplugging of the short-circuit wires. Contact only needs to be made on the silver-plated spring strips of two adjacent power terminals and conductivity must be ensured so that a self-short circuit can be realized in the phase current circuit. The operation is more convenient.

Claims (10)

A novel universal power clamp with self-shorting function, characterized in that it comprises a power clamp mechanism (100) which includes a power clamp insulating plate (101), a square hole (102), a rectangular recess (103), a movable insulating plate (104), a conductive block (105) and a conductive slider (106), the square hole (102) being provided in the center of the surface of the power terminal insulating plate (101), further the rectangular recess (103) on the surface of the power terminal insulating plate (101). Insulating plate (101) is provided, the rectangular recess (103) is located on the inside of the square hole (102), furthermore the movable insulating plate (104) is housed in the cavity of the rectangular recess (103), the conductive block (105). the outside of the power terminal insulating plate (101) is fixedly arranged and the conductive slider (106) is slidably mounted on the inside of the conductive block (105). Innovative universal current clamp with self-short circuit function Claim 1 , characterized in that the size of the movable insulating plate (104) is smaller than that of the rectangular recess (103), the rectangular recess (103) and the movable insulating plate (104) being coordinated with one another so that they can slide against one another. Innovative universal current clamp with self-short circuit function Claim 2 , characterized in that the square hole (102) runs through the rectangular recess (103), the depth of the rectangular recess (103) being 1 mm. Innovative universal current clamp with self-short circuit function Claim 1 , 2 or 3 , characterized in that the front end of the movable insulating plate (104) is provided with positioning holes (104a) at the top and bottom, the thickness of the movable insulating plate (104) being 0.9 mm. Innovative universal current clamp with self-short circuit function Claim 4 , characterized in that spring bands (105a) are attached to two sides of the conductive block (105), the spring bands (105a) being shaped outwards in the overall design. Innovative universal current clamp with self-short circuit function Claim 5 , characterized in that the spring bands (105a) are silver-plated spring bands. Innovative universal current clamp with self-short circuit function Claim 6 , characterized in that the positions of the spring bands (105a) and the position of the square hole (102) are coordinated, with the spring bands (105a) and the square hole (102) being on the same horizontal line. Innovative universal current clamp with self-short circuit function Claim 1 or 7 , characterized in that the inside of the conductive slider (106) is provided with positioning projections (106a) at the top and bottom, the positions of the positioning projections (106a) corresponding to the positions of the positioning holes (104a). Innovative universal current clamp with self-short circuit function Claim 8 , characterized in that the positioning projections (106a) are firmly connected to the positioning holes (104a) by insertion. Improved DC high voltage generator Claim 1 or 9 , characterized in that a push handle (106b) is arranged at the upper end of the conductive slide (106), an insulating rubber block being used as the push handle (106b).

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