Thermal tripping ejector rod device of surge protection device

Abstract

A thermal tripping ejector rod device of a surge protection device is characterized by comprising a buckle body, a placing groove, a through hole, a supporting rod, a spring, a connecting piece and a copper wire, the placing groove is formed in the buckle body, the through hole is formed in the front end of the placing groove, the supporting rod is arranged on the buckle body, the spring is arranged on the supporting rod, the connecting piece is arranged in the placing groove, and the spring is arranged on the connecting piece. A copper wire is arranged in the connecting sheet; the supporting column of the buckle body abuts against the surge protection device, the other end of the copper wire is connected with a wire of the surge protection device, at the moment, the spring is in a compressed state, when the temperature of the surge protection device rises, low-temperature soldering tin of the connecting piece is melted, the buckle body bounces upwards under the elastic force effect of the spring, and the connecting piece and the copper wire are driven to move upwards. The copper wire is separated from the wire of the surge protection device, timely thermal tripping of the surge protection device is realized, the situation that thermal tripping cannot be timely separated when the surge protection device is used is avoided, and normal work of the surge protection device is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of surge protection device especially relates to surge protection device thermal trip ejector rod device. BACKGROUND

[0002] Lightning is a special weather phenomenon caused by the discharge of charged clouds in the air. Lightning is an important cause of damage to electronic equipment, and it threatens the safe and stable operation of electronic information systems in various fields such as construction, railways, civil aviation, communications, industrial control, and military affairs. Installing a surge protection device (SPD) on the metal lines such as power lines, signal lines, and control lines connected to electronic equipment is one of the important measures for lightning protection. Surge protection devices have been widely used in various fields and play an important role in lightning protection. The state of the surge protection device directly affects its lightning protection effect, thereby posing a hidden danger to the safety of the protected equipment; the basic protection principle of the surge protection device is: when there is an overvoltage, the circuit is turned on, and the current is discharged; when there is no overvoltage, almost no current passes through. However, when the surge protection device deteriorates and causes temperature rise, the circuit will be safely disconnected, which is a case of failure of the surge protection device. The deterioration of the surge protection device causes the surge protection element to heat up, which heats up the thermal trip mechanism and causes the thermal trip mechanism to disengage, disconnecting the circuit;

[0003] The existing surge protection device may not be able to disengage in time when in use, resulting in failure of the surge protection device to work normally. To solve the above problems, a surge protection device thermal trip ejector rod device is proposed. INNOVATION CONTENT

[0004] In view of the above technical problems, the utility model provides a surge protection device thermal trip ejector rod device, characterized by comprising a buckle body, a placing groove, a through hole, a support rod, a spring, a connecting piece, and a copper wire, the placing groove is arranged in the buckle body, the through hole is arranged at the front end of the placing groove, the support rod is arranged on the buckle body, the spring is arranged on the support rod, the connecting piece is arranged in the placing groove, and the copper wire is arranged in the connecting piece;

[0005] Further, the connecting piece extends out of the placing groove and is located in the through hole, and the copper wire is welded on the connecting piece;

[0006] Further, a limiting block is arranged in the through hole, and the part of the connecting piece extending into the through hole semi-encloses the limiting block;

[0007] Further, the support rod is located at the center of the bottom of the buckle body, the placing groove has two and is symmetrically arranged on the buckle body, the through hole has two and corresponds to the placing groove, and one connecting piece is arranged in each placing groove.

[0008] The utility model has the advantages of:

[0009] The utility model is implemented by welding a connecting piece and a copper wire, placing the connecting piece in a placement groove, extending the front end of the connecting piece into the through hole, connecting the connecting piece to the surge protector through low-temperature soldering on the back side of the portion located in the through hole, placing the supporting column of the buckle body against the surge protector, and connecting the other end of the copper wire to the wire of the surge protector. At this time, the spring is in a compressed state. When the temperature of the surge protector rises, the low-temperature solder on the connecting piece melts, and the buckle body bounces upward under the elastic force of the spring, driving the connecting piece and the copper wire to move upward, separating the copper wire from the wire of the surge protector, thereby realizing timely thermal tripping of the surge protector, avoiding the situation where the thermal tripping cannot be timely disengaged when the surge protector is in use, and ensuring the normal operation of the surge protector. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the overall structure of a first embodiment of a thermal trip ejector device for a surge protector according to the present invention;

[0011] Figure 2 This is a schematic diagram of the explosion structure of the first embodiment of the thermal trip ejector device of the surge protector of the present invention;

[0012] Figure 3 This is a schematic diagram of the overall structure of a second embodiment of a thermal tripping ejector device for a surge protector according to the present invention;

[0013] Figure 4 This is a schematic diagram of the explosion structure of the second embodiment of the thermal trip ejector device of the surge protector of the present invention;

[0014] As shown in the figure: 1 buckle body, 2 placement slot, 3 through hole, 4 support rod, 5 spring, 6 connecting piece, 7 copper wire, 8 limit block. DETAILED DESCRIPTION

[0015] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0016] In the description of the utility model, it is necessary to explain that the orientation or position relation indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is the orientation or position relation based on the drawing shown, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0017] In the description of the utility model, it is necessary to explain that the terms "installation", "connection", "connection" should be understood broadly unless otherwise specified and limited, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances. In addition, the technical features involved in different embodiments of the utility model described below can be combined with each other as long as there is no conflict.

[0018] Embodiment 1

[0019] The utility model provides a surge protection device thermal trip ejector rod device, its characterized in be including buckle body 1, place groove 2, through hole 3, support rod 4, spring 5, connecting piece 6, copper wire 7, place groove 2 is set in buckle body 1, place groove 2 front end sets through hole 3, buckle body 1 is provided with support rod 4, support rod 4 is provided with spring 5, place groove 2 is provided with connecting piece 6, connecting piece 6 is provided with copper wire 7 in it;

[0020] Further, the connecting piece 6 extends out of the placing groove 2 and is located in the through hole 3, and the copper wire 7 is welded on the connecting piece 6;

[0021] Further, the through hole 3 is provided with a limiting block 8, and the part of the connecting piece 6 extending into the through hole 3 semi-encloses the limiting block 8;

[0022] When in use, weld the connecting piece 6 and the copper wire 7, and place the connecting piece 6 in the placement groove 2. The front end of the connecting piece 6 extends into the through hole 3 and half surrounds the limit block 8. The back of the connecting piece 6 located in the through hole 3 is connected to the surge protector through low-temperature soldering. The support column of the buckle body 1 is placed on the surge protector, and the other end of the copper wire 7 is connected to the wire of the surge protector. At this time, the spring 5 is in a compressed state. When the temperature of the surge protector rises, the low-temperature solder with the connecting piece 6 melts, and the buckle body 1 bounces upward under the elastic force of the spring 5, driving the connecting piece 6 and the copper wire 7 to move upward, so that the copper wire 7 is separated from the wire of the surge protector, thereby realizing timely thermal tripping of the surge protector.

[0023] Example 2

[0024] The utility model provides a surge protector thermal tripping ejector device, which is characterized by comprising a buckle body 1, a placement slot 2, a through hole 3, a support rod 4, a spring 5, a connecting piece 6, and a copper wire 7. The buckle body 1 is provided with the placement slot 2, the front end of the placement slot 2 is provided with the through hole 3, the buckle body 1 is provided with the support rod 4, the support rod 4 is provided with the spring 5, the placement slot 2 is provided with the connecting piece 6, and the copper wire 7 is provided in the connecting piece 6;

[0025] Furthermore, the connecting piece 6 extends out of the placement slot 2 and is located in the through hole 3, and the copper wire 7 is welded to the connecting piece 6;

[0026] Furthermore, the support rod 4 is located at the center of the bottom of the buckle body 1, there are two placement slots 2, which are symmetrically arranged on the buckle body 1, there are two through holes 3, and they correspond to the placement slots 2, and each placement slot 2 is provided with a connecting piece 6;

[0027] When in use, weld the connecting piece 6 and the copper wire 7, and place the two connecting pieces 6 in the two placement slots 2 respectively, with the front end of the connecting piece 6 extending into the through hole 3, and the back sides of the two connecting pieces 6 located in the through hole 3 are connected to the surge protector through low-temperature soldering, and the support column of the buckle body 1 is placed on the surge protector, and the other end of the copper wire 7 is connected to the wire of the surge protector. At this time, the spring 5 is in a compressed state. When the temperature of the surge protector rises, the low-temperature solder with the connecting piece 6 melts, and the buckle body 1 bounces upward under the elastic force of the spring 5, driving the connecting piece 6 and the copper wire 7 to move upward, so that the copper wire 7 is separated from the wire of the surge protector, thereby realizing timely thermal tripping of the surge protector.

[0028] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above. The various components mentioned in the utility model are common technology in the prior art, which should be understood by the skilled person in the industry. The utility model is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. The surge protector thermal tripping ejector device is characterized in that: It includes a buckle body, a placement slot, a through hole, a support rod, a spring, a connecting piece, and a copper wire. The placement slot is set in the buckle body, a through hole is set at the front end of the placement slot, a support rod is set on the buckle body, a spring is set on the support rod, a connecting piece is set in the placement slot, and a copper wire is set in the connecting piece.

2. The surge protector thermal tripping ejector device according to claim 1, characterized in that: The connecting piece extends out of the placement slot and is located in the through hole, and the copper wire is welded on the connecting piece.

3. The surge protector thermal tripping ejector device according to claim 2, characterized in that: A limiting block is arranged in the through hole, and the portion of the connecting piece extending into the through hole half surrounds the limiting block.

4. The surge protector thermal tripping ejector device according to claim 2, characterized in that: The support rod is located at the center of the bottom of the buckle body. There are two placement slots, which are symmetrically arranged on the buckle body. There are two through holes, which correspond to the placement slots. A connecting piece is arranged in each placement slot.

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