Alarm device and surge protector

Abstract

This invention provides an alarm device and a surge protector. The alarm device includes an alarm module and a switching module. The alarm module is welded to a surge protection module and is movable to warn of a tripped surge protection module. A contact is connected to a switch body and can drive the switch body to rotate, allowing the switch body to conduct different electrodes. The alarm module is located on one side of the contact. In a first state, the alarm module presses against the contact, and the contact is at its lowest point. In a second state, the alarm module moves, and the contact rotates a certain angle and comes into contact with the alarm module. In a third state, the surge protection module is pulled out, and the contact is at its highest point. This solves the problem that the alarm device fails to sound when the surge protection module is pulled out. By allowing the alarm module to be in three states, the contact can rotate at different angles, conduct different electrodes, and transmit different electrical signals. Signal transmission is performed separately for each of the three states of the surge protection module, improving the comprehensiveness of the alarm.

Description

Technical Field

[0001] This invention belongs to the field of power electrical equipment technology, specifically relating to an alarm device and a surge protector. Background Technology

[0002] A surge, also known as a voltage spike, is, as the name suggests, a momentary overvoltage exceeding the normal operating voltage. A surge protector, also called a lightning arrester, is an electronic device that provides safety protection for various electronic devices, instruments, and communication lines. When a sudden spike in current or voltage occurs in an electrical circuit or communication line due to external interference, the surge protector can conduct and divert the current in a very short time, thereby preventing damage to other equipment in the circuit.

[0003] Surge protectors mainly consist of a surge protection module and an alarm device. The alarm device is connected to the surge protection module. When the surge protection module's conduction current and temperature are too high, causing the surge protection module to trip, the alarm device receives a signal and sounds an alarm. However, when the existing surge protection module is removed, the alarm device cannot receive a signal and sounds an alarm. The surge protection module is missing, and it cannot provide safety protection for various electronic devices, instruments, and communication lines, thus causing equipment damage. Summary of the Invention

[0004] The purpose of this invention is to overcome the defects in the prior art and provide an alarm device and surge protector that solves the problem that existing alarm devices and surge protectors can alarm for tripping, but cannot alarm for the state of the lightning protection module being pulled out.

[0005] To achieve the above objectives, the present invention provides an alarm device, including an alarm module and a switch module;

[0006] The alarm module is welded to the lightning protection module, and the alarm module is movable to warn the lightning protection module of a tripping.

[0007] The switch module includes contacts and a switch body;

[0008] The contact is connected to the switch body, and the contact can drive the switch body to rotate so that the switch body can conduct different electrodes;

[0009] The alarm module is located on one side of the contact, and the alarm module includes at least a first state, a second state, and a third state;

[0010] In the first state, the alarm module presses against the contact, and the contact is at its lowest point; in the second state, the alarm module moves, and the contact rotates at a certain angle and comes into contact with the alarm module; in the third state, the lightning protection module is pulled out, the alarm module moves away from the contact, and the contact is at its highest point.

[0011] Optionally, a housing may also be included;

[0012] The alarm module and the lightning protection module are disposed inside the housing, and the outer wall of the housing is provided with a pressure guiding post. The alarm module can pass through the pressure guiding post, and the contact is disposed on the lower side of the pressure guiding post so that the pressure guiding post can abut against the contact in the second state.

[0013] Furthermore, the housing is provided with a first receiving groove and a second receiving groove;

[0014] The lightning protection module is fixed in the first receiving slot, and the alarm module is fixed in the second receiving slot.

[0015] Furthermore, the switch body includes a circuit board, a spring contact, and an elastic swivel ring;

[0016] One end of the elastic rotating ring is connected to the contact, and the other end of the elastic rotating ring is connected to the spring piece. The spring piece is hinged to the circuit board, and the contact can drive the spring piece connected to the elastic rotating ring to rotate.

[0017] The circuit board has three conductive points, and the spring has two conductive posts. When the spring is rotated, the two conductive posts can connect with any two of the three conductive points.

[0018] Furthermore, the spring is a wavy spring.

[0019] Furthermore, the switch body also includes a cover;

[0020] The cover is mounted on the circuit board, and the spring and elastic rotating ring are located inside the cover. The electrodes of the circuit board can protrude from the housing.

[0021] Optionally, the alarm module includes an alarm rod;

[0022] The alarm rod is located at the upper end of the contact, and the alarm rod is welded to the lightning protection module.

[0023] Furthermore, the alarm rod is provided with an elastic part so that the alarm rod can move quickly when it is desoldered from the lightning protection module.

[0024] Furthermore, the alarm rod includes a rod body, a pressing part, and a connecting part;

[0025] The clamping part is located at one end of the rod body, and the connecting part is located at the other end of the rod body. The clamping part is used to contact the contact, and the connecting part is used to connect to the lightning protection module.

[0026] The present invention also provides a surge protector, comprising: a lightning protection module and the aforementioned alarm device.

[0027] The alarm device and surge protector described in this invention have the following advantages: the alarm module is welded to the surge protection module, and the alarm module can move to warn the surge protection module of tripping, ensuring that the surge protection module will alarm when it trips; by connecting the contacts to the switch body, and the contacts being able to drive the switch body to rotate, the switch body can conduct different electrodes, that is, transmit different electrical signals to achieve alarm; specifically, the alarm module is located on one side of the contacts. In the first state, the alarm module presses the contacts together, and the contacts are at their lowest point, that is, when the alarm module and the surge protection module are conducting, the contacts conduct the corresponding electrodes and send a conduction signal; in the second state, the alarm module moves, the contacts rotate a certain angle and abut against the alarm module, that is, the alarm module and the surge protection module are tripped, and the contacts conduct the corresponding electrodes and send a tripping signal; in the third state, the surge protection module is pulled out, the surge protection module is away from the contacts, and the contacts are at their highest point, that is, the alarm module and the surge protection module are separated, and the contacts conduct the corresponding electrodes and send a pull-out signal, thus achieving the purpose of the alarm module alarming the surge protection module in various states, improving the comprehensiveness of the alarm and improving the performance. Attached Figure Description

[0028] Figure 1 A side view of the alarm device in the first state provided in an embodiment of the present invention;

[0029] Figure 2 A side view of the second state of the alarm device provided in an embodiment of the present invention;

[0030] Figure 3 A side view of the third state of the alarm device provided in an embodiment of the present invention;

[0031] Figure 4 An internal sectional view of the alarm device provided in an embodiment of the present invention;

[0032] Figure 5 This is a schematic diagram of the connection between the housing and the lightning protection module provided in an embodiment of the present invention;

[0033] Figure 6 This is a schematic diagram of the structure of the housing provided in an embodiment of the present invention;

[0034] Figure 7 A side view of a switch module provided in an embodiment of the present invention;

[0035] Figure 8 This is a schematic diagram of the structure of the switch module provided in an embodiment of the present invention;

[0036] Figure 9 This is a schematic diagram of the circuit board structure provided in an embodiment of the present invention;

[0037] Figure 10 This is a schematic diagram of the structure of the spring sheet provided in an embodiment of the present invention;

[0038] Figure 11 This is a schematic diagram of the structure of the elastic rotating ring provided in an embodiment of the present invention.

[0039] 1. Alarm device; 2. Lightning protection module; 11. Alarm module; 12. Switch module; 13. Housing; 111. Alarm rod; 112. Elastic part; 113. Rod body; 114. Pressing part; 115. Connecting part; 121. Contact; 122. Switch body; 123. Electrode; 124. Circuit board; 125. Spring; 126. Elastic rotating ring; 127. Conducting point; 128. Conducting post; 129. Cover; 131. Pressure guiding post; 132. First receiving groove; 133. Second receiving groove. Detailed Implementation

[0040] The alarm device and surge protector of the present invention will be described in detail below with reference to the accompanying drawings.

[0041] Figure 1 A side view of the alarm device 1 in the first state provided in an embodiment of the present invention; Figure 2 A side view of the second state of the alarm device 1 provided in an embodiment of the present invention; Figure 3 A side view of the third state of the alarm device 1 provided in an embodiment of the present invention; Figure 4 This is an internal cross-sectional view of the alarm device 1 provided in an embodiment of the present invention.

[0042] like Figure 1-4 As shown, this embodiment of the invention provides an alarm device 1, including an alarm module 11 and a switch module 12. The alarm module 11 is welded to a surge protection module 2, and the alarm module 11 is movable to warn the surge protection module 2 of tripping. The switch module 12 includes a contact 121 and a switch body 122. The contact 121 is connected to the switch body 122, and the contact 121 can drive the switch body 122 to rotate, so that the switch body 122 conducts different electrodes 123. The alarm module 11 is located on one side of the contact 121, and the alarm module 11 includes at least a first state, a second state, and a third state. In the first state, the alarm module 11 presses against the contact 121, and the contact 121 is at its lowest point. In the second state, the alarm module 11 moves, and the contact 121 rotates a certain angle and abuts against the alarm module 11. In the third state, the surge protection module 2 is pulled out, the alarm module 11 moves away from the contact 121, and the contact 121 is at its highest point.

[0043] The alarm module 11 is soldered to one side of the surge protection module 2. When the surge protection module 2 overheats, the alarm module 11 desolders from the surge protection module 2. The alarm module 11 can move to warn the surge protection module 2 of tripping, ensuring that the surge protection module 2 will trigger an alarm when it trips. By connecting the contact 121 of the switch module 12 to the switch body 122, and the contact 121 can drive the switch body 122 to rotate, the switch body 122 can conduct different electrodes 123, that is, transmit different electrical signals to achieve the alarm. Specifically, in the first state, the alarm module 11 and the surge protection module 2 are in a soldered state, the alarm module 11 presses the contact 121, and the contact 121 is at its lowest point. That is, when the alarm module 11 and the surge protection module 2 are connected, the contact 121... In the first state, the lightning protection module 2 is desoldered from the alarm module 11, the alarm module 11 moves, and the contact 121 rotates at a certain angle and comes into contact with the alarm module 11, that is, the alarm module 11 is de-energized from the lightning protection module 2, and the contact 121 is energized with the corresponding electrode 123, sending a tripping signal; in the second state, the lightning protection module 2 is pulled out and separated from the alarm module 11, the lightning protection module 2 moves away from the contact 121, and the contact 121 rotates to its highest point, that is, the lightning protection module 2 is separated from the alarm module 11, and the contact 121 is energized with the corresponding electrode 123, sending a pull-out signal, thus realizing the purpose of the alarm module 11 to alarm the lightning protection module 2 in various states, improving the comprehensiveness of the alarm and improving the safety performance.

[0044] The surge protection module 2 and the alarm module 11 are welded together by a connector. One end of the connector is inserted into the middle of the surge protection module 2, and the other end of the connector is welded to the alarm module 11. When the temperature of the surge protection module 2 rises, the temperature is transferred to the other end of the connector, causing the surge protection module 2 and the alarm module 11 to detach.

[0045] When the surge protection module 2 is desoldered from the alarm module 11, the alarm module 11 will move upward so that the contact 121 of the switch module 12 will rotate, causing the switch body 122 to conduct the corresponding electrode 123, thereby transmitting the corresponding signal.

[0046] Figure 5 This is a schematic diagram of the connection between the housing 13 and the lightning protection module 2 provided in an embodiment of the present invention; Figure 6 This is a schematic diagram of the structure of the housing 13 provided in an embodiment of the present invention.

[0047] like Figure 5-6 As shown, it also includes a housing 13; an alarm module 11 and a lightning protection module 2 are disposed inside the housing 13, and a pressure guiding post 131 is provided on the outer side wall of the housing 13. The alarm module 11 can pass through the pressure guiding post 131, and the contact 121 is disposed on the lower side of the pressure guiding post 131 so that in the second state, the pressure guiding post 131 can abut against the contact 121.

[0048] In the first state, the surge protection module 2 is welded to the alarm module 11, and the alarm module 11 extends through the pressure guide post to abut against the contact 121 so that the contact 121 is at its lowest point. In the second state, the surge protection module 2 is de-welded to the alarm module 11, the alarm module 11 moves upward, the alarm module 11 retracts along the pressure guide post 131 and moves upward, the contact 121 rotates at a certain angle, and the contact 121 abuts against the pressure guide post 131 of the housing 13 of the alarm module 11, that is, the alarm module 11 is deactivated from the surge protection module 2, and the contact 121 rotates until the switch body 122 conducts the corresponding electrode 123, thereby sending a trip signal.

[0049] When the surge protection module 2 trips, the alarm rod 111 of the alarm module 11 will move upward along the pressure guide post 131, while the housing 13 of the alarm module 11 will not move. That is, the pressure guide post 131 on the outside of the housing 13 will not move, meaning that the contact 121 can abut against the pressure guide post 131 after rotating a certain angle.

[0050] The contact surface between the housing 13 and the surge protection module 2 is provided with a heat insulation plate to prevent the surge protection module 2 from overheating and causing damage to the housing 13.

[0051] Among them, the pressure guiding column 131 is a hollow column, that is, the alarm module 11 can pass through the pressure guiding column 131, and when the alarm module 11 moves upward, the pressure guiding column 131 can press against the contact 121.

[0052] When the alarm module 11 moves upward, the contact 121 rotates and moves at a certain angle, with the angle range being 20-50 degrees.

[0053] Furthermore, the housing 13 is provided with a first receiving groove 132 and a second receiving groove 133; the lightning protection module 2 is fixed in the first receiving groove 132, and the alarm module 11 is fixed in the second receiving groove 133.

[0054] By fixing the lightning protection module 2 in the first receiving slot 132 and the alarm module 11 in the second receiving slot 133, the overall assembly is made simpler and faster, improving production efficiency.

[0055] The lightning protection module 2 and the alarm module 11 can be snapped into the first receiving groove 132 and the second receiving groove 133 respectively, so that the lightning protection module 2 and the alarm module 11 can be detachably connected to the housing 13, and the connection operation is simple.

[0056] Figure 7 This is a top view of the switch module 12 provided in an embodiment of the present invention; Figure 8 This is a schematic diagram of the structure of the switch module 12 provided in an embodiment of the present invention; Figure 9This is a schematic diagram of the structure of the circuit board 124 provided in an embodiment of the present invention; Figure 10 This is a schematic diagram of the structure of the spring 125 provided in an embodiment of the present invention; Figure 11 This is a schematic diagram of the structure of the elastic rotating ring 126 provided in an embodiment of the present invention.

[0057] like Figure 7-11 As shown, the switch body 122 includes a circuit board 124, a spring 125, and an elastic rotating ring 126; one end of the elastic rotating ring 126 is connected to the contact 121, and the other end of the elastic rotating ring 126 is connected to the spring 125. The spring 125 is hinged to the circuit board 124, and the contact 121 can drive the spring 125 connected to the elastic rotating ring 126 to rotate; the circuit board 124 is provided with three conductive points 127, and the spring 125 is provided with two conductive posts 128. When the spring 125 is rotated, the two conductive posts 128 can connect with any two of the three conductive points 127.

[0058] The upper end of the elastic rotating ring 126 is fixedly connected to the contact 121, and the lower end of the elastic rotating ring 126 is connected to the spring piece 125. The spring piece 125 is hinged to the circuit board 124. The contact 121 can drive the spring piece 125 connected to the elastic rotating ring 126 to rotate. The circuit board 124 is provided with three conductive points 127, and the spring piece 125 is provided with two conductive posts 128. When the spring piece 125 is rotated, the two conductive posts 128 can connect with any two of the three conductive points 127.

[0059] Specifically, when the surge protection module 2 is soldered to the alarm module 11, the alarm module 11 presses the contact 121. When the contact 121 is at its lowest point, the conductive post 128 of the spring piece 125 is connected to the two conductive points 127 on the left side of the circuit board 124, transmitting a conduction signal. When the surge protection module 2 is desoldered from the alarm module 11, the conductive post 128 of the housing 13 of the alarm module 11 abuts against the contact 121. The contact 121 rotates to the middle position, and the conductive post 128 on the spring piece 125 is not connected to the conductive points 127 on the circuit board 124, transmitting a tripping signal. When the surge protection module 2 is pulled out, the alarm module 11 separates from the contact 121. The contact 121 rotates to its highest point, and the conductive post 128 on the spring piece 125 is connected to the two conductive points 127 on the right side of the circuit board 124, transmitting a pull-out signal.

[0060] Among them, the conductive point 127 is a pad. The circuit board 124 has three evenly distributed pads, each of which has a through hole. When the spring 125 rotates, the conductive post 128 on the spring 125 can connect with the through hole, thereby connecting the corresponding electrode 123 on the circuit board 124 and thus outputting the corresponding signal.

[0061] Specifically, the elastic swivel 126 includes two connecting feet and an elastic post. The two connecting feet on both sides of the elastic post are connected to the outer cover to support the elastic post.

[0062] The elastic rotating ring 126 and the spring piece 125 are integrally formed, and the two elastic columns of the elastic rotating ring 126 have their own contacts. The alarm rod 111 is desoldered from the alarm module 11. The alarm rod 111 moves upward along the pressure guide column 131. The contact 121 rotates at a certain angle and abuts against the housing 13 of the alarm module 11. That is, the alarm rod 111 is deactivated from the surge protection module 2. The contact 121 drives the elastic rotating ring 126 to rotate, and then the contact on the elastic rotating ring 126 conducts electricity to the corresponding electrode 123, and sends out a trip signal.

[0063] Furthermore, the shrapnel 125 is a wavy shrapnel.

[0064] By selecting a wave-shaped elastic spring 125, the wave-shaped spring 125 can have a certain elasticity so that under the rotation of the elastic rotating ring 126, it can both connect the conductive point 127 and the conductive post 128 on the circuit board 124 and disconnect the conductive point 127 and the conductive post 128, thereby improving the reliability of the electrical connection.

[0065] The wave shape of the spring piece 125 can be a symmetrical arc shape to achieve symmetry and reliability in the connection.

[0066] Furthermore, the switch body 122 also includes a cover 129; the cover 129 covers the circuit board 124, and the spring piece 125 and the elastic rotating ring 126 are located inside the cover 129, and the electrodes 123 of the circuit board 124 can protrude from the housing 13.

[0067] By placing the switch body 122 inside the enclosure 129, interference from the external environment to the switch body 122 is avoided, thereby improving the reliability of the alarm.

[0068] Optionally, the alarm module 11 includes an alarm rod 111; the alarm rod 111 is located at the upper end of the contact 121, and the alarm rod 111 is welded to the lightning protection module 2.

[0069] The alarm rod 111 is located above the contact 121. The upper end of the alarm rod 111 is welded to the surge protection module 2, and the lower end of the alarm rod 111 faces the contact 121. When the alarm module 11 and the surge protection module 2 are welded, the alarm rod 111 extends out of the housing 13 and presses against the contact 121. The contact 121 is at its lowest point, that is, when the alarm module 11 and the surge protection module 2 are connected, the contact 121 conducts to the corresponding electrode 123 and sends a conduction signal. In the second state, the alarm rod 111 is de-welded to the alarm module 11, the alarm rod 111 moves upward along the pressure guide post 131, and the contact 121 rotates. At a certain angle, the alarm rod 111 abuts against the housing 13 of the alarm module 11, meaning the alarm rod 111 is disengaged from the surge protection module 2. The contact 121 conducts the corresponding electrode 123, sending a tripping signal. In the third state, the surge protection module 2 is pulled out and separated from the alarm module 11. The surge protection module 2 moves away from the contact 121, and the contact 121 rotates to its highest point, meaning the surge protection module 2 is separated from the alarm module 11. The contact 121 conducts the corresponding electrode 123, sending a pull-out signal. This achieves the purpose of the alarm module 11 alarming the surge protection module 2 in various states, improving the comprehensiveness of the alarm and enhancing its performance.

[0070] The alarm rod 111 includes a first rod and a second rod. The first rod is located on the upper side and the second rod is located on the lower side. The size of the first rod is larger than that of the second rod. The first rod is welded to the lightning protection module 2. The first rod and the lightning protection module 2 have a large welding area, which improves the welding effect. The first rod is provided with a groove to reduce the material and weight of the first rod. The second rod extends out of the pressure guide post 131. It is smaller in size, which reduces the weight of the product and is beneficial to the overall economic efficiency of the product.

[0071] Specifically, it also includes a limiting plate, which limits the alarm rod 111. The upper end of the limiting plate is connected to the lightning protection module 2 through a connector. When the temperature of the lightning protection module 2 rises, the heat is transferred to the other end of the welding point with the alarm rod 111 through the connector. When a certain temperature is reached, the upper end of the limiting plate is de-welded to the alarm rod 111, and the alarm rod 111 moves to trigger the alarm.

[0072] The alarm rod 11 is welded to the lightning protection module 2 via a limiting plate, which enables end-face welding between the limiting plate and the lightning protection module 2. This improves welding reliability, avoids false alarms, and enhances alarm accuracy.

[0073] When the surge protection module 2 trips, the alarm rod 111 will move. Taking the upward movement of the alarm rod 111 as an example, the alarm rod 111 will lift up to activate the corresponding alarm switch and realize the alarm, or the alarm rod 11 will move up and the upper end of the alarm rod 11 will protrude out of the housing to realize the alarm.

[0074] The limiting plate can restrict the movement of the alarm rod 111. However, when the trip is triggered, the limiting plate becomes unsoldered from the lightning protection module 2, causing the limiting plate to lose its restrictive effect on the alarm rod 111, which means the alarm rod 111 can move.

[0075] The upper end of the first rod 111 is attached to the side of the limiting plate, ensuring that the limiting plate and the alarm rod 111 have a large contact and limiting area, thus ensuring the reliability and stability of the limiting.

[0076] Furthermore, the alarm rod 111 is provided with an elastic part 112 so that the alarm rod 111 can move quickly when it is desoldered from the lightning protection module 2.

[0077] An elastic part 112 is provided on the alarm rod 111, which is beneficial to apply an elastic force to the alarm rod 111 when it is desoldered from the lightning protection module 2, so that the alarm rod 111 can move upward quickly.

[0078] Specifically, when the lightning protection module 2 is welded to the alarm rod 111, the elastic part 112 is in a compressed state. When the lightning protection module 2 is de-welded to the alarm rod 111, the elastic part 112 changes from a compressed state to an extended state, providing kinetic energy for the movement of the alarm rod 111 and improving the alarm effect.

[0079] The elastic part 112 can be a spring or a compression spring, which has good elasticity.

[0080] Furthermore, the alarm rod 111 includes a rod body 113, a pressing part 114, and a connecting part 115; the pressing part 114 is disposed at one end of the rod body 113, and the connecting part 115 is disposed at the other end of the rod body 113. The pressing part 114 is used to contact the contact 121, and the connecting part 115 is used to connect to the lightning protection module 2.

[0081] The clamping part 114 is located at the lower end of the rod body 113 and contacts the contact 121 to clamp the contact 121; the connecting part 115 is located at the upper end of the rod body 113 and is used to connect the lightning protection module 2.

[0082] The clamping part 114 can be arc-shaped, which helps to provide a certain buffer when squeezing the contact 121 and avoids wear on the contact 121.

[0083] The connecting part 115 can be an arc-shaped surface on the side of the upper end of the rod 113, which helps to increase the connection area between the rod 113 and the lightning protection module 2 and improve the connection stability.

[0084] The present invention also provides a surge protector, comprising: a lightning protection module 2 and the aforementioned alarm device 1.

[0085] By triggering alarms on the surge protector's alarm module 11 for each of the three states of the lightning protection module 2, comprehensive protection of the surge protector is achieved. The alarm reliability is high and the alarm effect is good.

[0086] In summary, the alarm device 1 and surge protector of the present invention have the following advantages: the alarm module 11 is welded to the surge protection module 2, and the alarm module 11 can move to warn the surge protection module 2 of tripping, ensuring that the surge protection module 2 will alarm when it trips; by connecting the contact 121 to the switch body 122, and the contact 121 can drive the switch body 122 to rotate, so that the switch body 122 conducts different electrodes 123, that is, transmits different electrical signals to realize the alarm; specifically, the alarm module 11 is located on one side of the contact 121. In the first state, the alarm module 11 presses the contact 121, and the contact 121 is at its lowest point, that is, the alarm module 11 and the surge protection module 2 are in a state of equilibrium. When block 2 is turned on, contact 121 connects to the corresponding electrode 123, sending a turn-on signal. In the second state, alarm module 11 moves, contact 121 rotates at a certain angle and comes into contact with alarm module 11, that is, alarm module 11 is disengaged from surge protection module 2, contact 121 connects to the corresponding electrode 123, sending a trip signal. In the third state, surge protection module 2 is pulled out, surge protection module 2 moves away from contact 121, contact 121 is at its highest point, that is, alarm module 11 is separated from surge protection module 2, contact 121 connects to the corresponding electrode 123, sending a pull-out signal. This achieves the purpose of alarm module 11 alarming surge protection module 2 in various states, improving the comprehensiveness of alarms and improving performance.

[0087] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A surge protector, characterized in that, It includes a lightning protection module (2), an alarm module (11), and a switch module (12); The alarm module (11) is welded to the lightning protection module (2), and the alarm module (11) is movable to warn the lightning protection module (2) of tripping. The switch module (12) includes a contact (121) and a switch body (122); The contact (121) is connected to the switch body (122), and the contact (121) can drive the switch body (122) to rotate so that the switch body (122) can conduct different electrodes (123); The switch body (122) includes a circuit board (124), a spring (125), and an elastic rotating ring (126); One end of the elastic rotating ring (126) is connected to the contact (121), and the other end of the elastic rotating ring (126) is connected to the spring piece (125). The spring piece (125) is hinged to the circuit board (124), and the contact (121) can drive the spring piece (125) connected to the elastic rotating ring (126) to rotate. The circuit board (124) is provided with three conductive points (127), and the spring piece (125) is provided with two conductive posts (128). When the spring piece (125) is rotated, the two conductive posts (128) can be connected to any two of the three conductive points (127). The alarm module (11) is located on one side of the contact (121), and the alarm module (11) includes at least a first state, a second state and a third state; In the first state, the alarm module (11) presses against the contact (121), and the contact (121) is at its lowest point; in the second state, the alarm module (11) moves, and the contact (121) rotates at a certain angle and abuts against the alarm module (11); in the third state, the alarm module (11) is pulled out, and the alarm module (11) moves away from the contact (121), and the contact (121) is at its highest point. The alarm module (11) includes an alarm rod (111); The alarm rod (111) is located at the upper end of the contact (121), and the alarm rod (111) is welded to the lightning protection module (2); The alarm rod (111) is provided with an elastic part (112) so that when the alarm rod (111) is de-welded to the lightning protection module (2), the alarm rod (111) can move quickly; It also includes a limiting plate, which limits the alarm rod (111). The upper end of the limiting plate is connected to the lightning protection module (2) through a connector. When the temperature of the lightning protection module (2) rises, the heat is transferred to the other end of the welding point with the alarm rod (111) through the connector connected to it. When a certain temperature is reached, the upper end of the limiting plate is de-welded to the alarm rod (111), and the alarm rod (111) moves to trigger an alarm. The alarm rod (111) is welded to the lightning protection module (2) through the limiting plate; The alarm module (11) and the lightning protection module (2) are installed inside the housing (13), and the outer side wall of the housing (13) is provided with a pressure guide column. The alarm module (11) can pass through the pressure guide column, and the contact (121) is located on the lower side of the pressure guide column so that in the second state, the pressure guide column can abut against the contact (121). The lower end of the alarm rod (111) faces the contact (121); in the first state, the alarm module (11) and the lightning protection module (2) are in a welded state, the alarm rod (111) extends out of the housing (13) and presses the contact (121) against the contact, the contact (121) is at the lowest point, that is, when the alarm module (11) and the lightning protection module (2) are connected, the contact (121) connects to the corresponding electrode (123) and sends a connection signal; in the second state, the alarm rod (111) is de-welded to the alarm module (11), the alarm rod (111) moves upward along the pressure guide column (131), When the contact (121) rotates at a certain angle and comes into contact with the housing (13) of the alarm module (11), the alarm rod (111) is disengaged from the lightning protection module (2), and the contact (121) conducts the corresponding electrode (123) and sends out a trip signal. In the third state, the lightning protection module (2) is pulled out and separated from the alarm module (11), the lightning protection module (2) moves away from the contact (121), and the contact (121) rotates to the highest point, that is, the lightning protection module (2) is separated from the alarm module (11), and the contact (121) conducts the corresponding electrode (123) and sends out a pull-out signal.

2. The surge protector according to claim 1, characterized in that, The housing (13) is provided with a first receiving groove (132) and a second receiving groove (133); The lightning protection module (2) is fixed in the first receiving slot (132), and the alarm module (11) is fixed in the second receiving slot (133).

3. The surge protector according to claim 1, characterized in that, The spring (125) is a wavy spring.

4. The surge protector according to claim 1, characterized in that, The switch body (122) also includes a cover (129); The cover (129) is placed on the circuit board (124), and the spring piece (125) and the elastic rotating ring (126) are located inside the cover (129). The electrodes (123) of the circuit board (124) can protrude from the cover (129).

5. The surge protector according to claim 1, characterized in that, The alarm rod (111) includes a rod body (113), a pressing part (114), and a connecting part (115); The clamping part (114) is disposed at one end of the rod body (113), and the connecting part (115) is disposed at the other end of the rod body (113). The clamping part (114) is used to contact the contact (121), and the connecting part (115) is used to connect to the lightning protection module (2).

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