Surge protector

Abstract

The utility model discloses a surge protector. The surge protector mainly solves the problems that an existing surge protector is relatively complex in structure and not easy to assemble. The pressure sensor is characterized in that the pressure sensor also comprises a lug plate which is arranged in the upper shell and is contacted with the pressure-sensitive component through low-temperature welding; the circuit board is arranged in the base and is provided with a microswitch used for alarming, the microswitch is arranged in the middle cavity, the rotating frame is rotatably arranged on the upper shell and is provided with at least two jacking parts, and when a product works normally, one jacking part is jacked on the lug plate, and the jacking part at the other end is jacked on a first position on the microswitch; when the product is fused, one top pressing part leaves the second position of the microswitch; the elastic piece is arranged in the upper shell and has elastic force for driving the rotating frame to rotate towards the second position; the through holes are formed in the bottom of the upper shell and the upper part of the base; and the connecting rod passes through the through hole, one end is contacted with one top pressure, and the other end is contacted with the microswitch. The surge protector provided by the utility model is simple in structure and convenient to assemble, and has a remote signaling function.

Description

Technical Field

[0001] The utility model relates to the field of surge protectors, in particular to a surge protector. Background Art

[0002] When lightning overvoltage, lightning electromagnetic pulse and abnormal sudden change of power supply voltage in the line occur, surge (instantaneous overvoltage exceeding normal working voltage) often occurs, which damages the power system and power equipment. In order to avoid the above situation, various surge protectors appear in our daily life. Surge protectors are used to suppress surges on the line and discharge overcurrent on the line.

[0003] Publication No. "CN 212751792 U" discloses a surge protector with a remote signaling function. When the surge protector is fused, the transmission structure for driving the micro switch is relatively complex and difficult to assemble. Utility Model Content

[0004] In order to overcome the shortcomings of the background technology, the utility model provides a surge protector, which mainly solves the problem that the current surge protector has a relatively complex structure and is difficult to assemble.

[0005] A surge protector comprises an upper shell and a base, wherein the base comprises a middle cavity and wiring cavities at both ends, and further comprises

[0006] The wiring piece is arranged in the upper shell and is in contact with the pressure-sensitive component through low-temperature welding;

[0007] The circuit board is arranged in the base and has a micro switch for alarm, and the micro switch is arranged in the middle cavity.

[0008] The rotating frame is rotatably arranged on the upper shell, and is provided with at least two pressing parts, and has a first position in which one pressing part presses on the wiring piece and the other pressing part presses on the micro switch when the product is working normally; and a second position in which one pressing part leaves the micro switch when the product is fused;

[0009] An elastic member, disposed in the upper shell, having an elastic force for driving the rotating frame to rotate toward the second position;

[0010] A through hole is provided at the bottom of the upper shell and the upper part of the base;

[0011] The connecting rod passes through the through hole, one end of which is in contact with a top pressure, and the other end of which is used to contact with a micro switch.

[0012] The elastic member is a tension spring.

[0013] It also includes a connecting hole, which is arranged on the rotating frame and is used for connecting one end of the tension spring.

[0014] It also includes a remote signaling interface, part of which is arranged in the wiring cavity and electrically connected to the circuit board.

[0015] One of the pressing parts is an L-shaped push rod structure, and the contact surface between the pressing part and the connecting rod is a plane.

[0016] One of the pressing portions is a long arm-shaped structure, and the contact surface between the pressing portion and the wiring piece is an arc-shaped surface.

[0017] The rotating frame comprises a main board, and the two pressing parts are arranged on the main board. When the rotating frame is in the first position, the main board is arranged on the extension line of the axis of the connecting rod.

[0018] The beneficial effects of the utility model are as follows: the utility model provides a surge protector which has a simple structure, is easy to assemble, and has a remote signaling function. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional schematic diagram of an embodiment of the utility model.

[0020] Figure 2 It is a partial three-dimensional schematic diagram of an embodiment of the utility model.

[0021] Figure 3 The figure is a schematic diagram of the internal structure of an embodiment of the utility model. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings: As shown in the figure, a surge protector includes an upper shell 1 and a base 2, the base includes a middle cavity 21 and a wiring cavity 22 provided at both ends, and also includes a wiring piece 11, which is arranged in the upper shell and is in contact with a pressure-sensitive component 12 through low-temperature welding; a circuit board 20 is arranged in the base and has a micro switch 211 for alarm, and the micro switch is arranged in the middle cavity, and a rotating frame 13 is rotatably arranged on the upper shell, and is provided with at least two A pressing part 131 has a first position in which one pressing part presses on the wiring piece and the other pressing part presses on the micro switch when the product is working normally; and a second position in which one pressing part leaves the micro switch when the product is blown; an elastic member 15 is provided in the upper shell and has an elastic force driving the rotating frame to rotate toward the second position; a through hole 16 is provided at the bottom of the upper shell and the upper part of the base; a connecting rod 17 passes through the through hole, one end is in contact with a pressing part, and the other end is used to contact the micro switch. In normal use, the pressure-sensitive component and the wiring piece are welded together at low temperature. When overheated and melted, the rotating frame is no longer supported by the pressure-sensitive component, so the instantaneous needle rotates under the action of the tension spring, and the top of the connecting rod is no longer under force, so the micro switch is disconnected under the action of its own spring, and the micro switch sends a signal to the circuit board, and the circuit board sends an alarm signal. The wiring cavity mentioned here can refer to Figure 3 In the figure, the outer side of the dotted line is the wiring cavity, which is used to place the wiring frame, the middle of the two dotted lines is the middle cavity, and the upper part of the middle cavity is the upper shell. This arrangement can make the rotating frame more streamlined, not too long or too large, and is convenient for production and assembly. The low-temperature welding mentioned here can be tin soldering.

[0023] In this embodiment, as shown in the figure, the elastic member is a tension spring, which provides a force to pull the rotating frame to rotate during disconnection, and the installation of the tension spring is more convenient.

[0024] In this embodiment, as shown in the figure, a connecting hole 132 is also included, which is provided on the rotating frame and is used for connecting one end of the tension spring. One end of the tension spring is connected to the connecting hole, and the other end is connected to the inner wall of the upper shell.

[0025] In this embodiment, as shown in the figure, a remote signal interface 222 is also included, part of which is arranged in the wiring cavity and electrically connected to the circuit board, and can be connected by wires for external signal transmission.

[0026] In this embodiment, as shown in the figure, one of the pressing parts is an L-shaped push rod structure, and the contact surface between the pressing part and the connecting rod is a plane. The top of the connecting rod is also a plane, and the contact between the two can better transmit torque, and the micro switch is pressed more smoothly.

[0027] In this embodiment, as shown in the figure, one of the pressing parts is a long arm structure, and the contact surface between the pressing part and the wiring piece is an arc surface. The long arm structure mentioned here can be a long cylindrical or rectangular parallelepiped shape, and its bottom is an arc surface.

[0028] In this embodiment, as shown in the figure, the rotating frame includes a main board 130, and the two pressing parts are arranged on the main board. When the rotating frame is in the first position, the main board is arranged on the extension line of the axis of the connecting rod. The main board is in the shape of a rectangle as a whole, and the two pressing parts are two structures extending from the rectangle. When the rotating frame is in the first position, the main board is arranged on the extension line of the axis of the connecting rod. With such a setting, the overall structure of the rotating frame does not need to be too large, and it is convenient to install.

[0029] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0031] The embodiments described with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention. The embodiments should not be regarded as limiting the present invention, but any improvements based on the spirit of the present invention should be within the scope of protection of the present invention.

Claims

1. A surge protector, comprising an upper shell (1) and a base (2), wherein the base comprises a middle cavity (21) and wiring cavities (22) provided at both ends, characterized in that: Also includes The wiring piece (11) is arranged in the upper shell and is in contact with the pressure-sensitive component (12) through low-temperature welding; A circuit board (20) is arranged in the base and has a micro switch (211) for alarming, and the micro switch is arranged in the middle cavity. The rotating frame (13) is rotatably arranged on the upper shell, and is provided with at least two pressing parts (131), and has a first position in which one pressing part presses on the wiring piece and the other pressing part presses on the micro switch when the product is working normally; and a second position in which one pressing part leaves the micro switch when the product is fused; An elastic member (15) is disposed in the upper shell and has an elastic force for driving the rotating frame to rotate toward the second position; A through hole (16) is provided at the bottom of the upper shell and the upper part of the base; A connecting rod (17) passes through the through hole, one end of which is in contact with a top pressure, and the other end of which is used to contact with a micro switch.

2. A surge protector according to claim 1, characterized in that: The elastic member is a tension spring.

3. A surge protector according to claim 2, characterized in that: It also includes a connecting hole (132) which is arranged on the rotating frame and is used for connecting one end of the tension spring.

4. A surge protector according to claim 1, characterized in that: It also includes a remote signaling interface (222), part of which is arranged in the wiring cavity and electrically connected to the circuit board.

5. A surge protector according to claim 1, characterized in that: One of the pressing parts is an L-shaped push rod structure, and the contact surface between the pressing part and the connecting rod is a plane.

6. A surge protector according to claim 1, characterized in that: One of the pressing portions is a long arm-shaped structure, and the contact surface between the pressing portion and the wiring piece is an arc-shaped surface.

7. A surge protector according to claim 1, characterized in that: The rotating frame comprises a main board (130), the two pressing parts are arranged on the main board, and when the rotating frame is in a first position, the main board is arranged on the extension line of the axis of the connecting rod.

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