CN211480915U - Tripping alarm device and surge protector - Google Patents
Tripping alarm device and surge protector Download PDFInfo
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- CN211480915U CN211480915U CN201922020179.8U CN201922020179U CN211480915U CN 211480915 U CN211480915 U CN 211480915U CN 201922020179 U CN201922020179 U CN 201922020179U CN 211480915 U CN211480915 U CN 211480915U
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Abstract
The utility model provides a dropout alarm device and surge protector, dropout alarm device includes: the device comprises a release, a first alarm and a second alarm; the tripper is welded with the lightning protection module, and the tripper can move to warn the lightning protection module of tripping; the tripper is connected with the first alarm and the second alarm respectively, and the first alarm and the second alarm can be started simultaneously when the tripper moves. The problem of current alarm device reliability poor, unable accurate quick warning lightning protection module's dropout is solved. Through being connected the tripper with first alarm and second alarm respectively, realize when the lightning protection module takes place to trip, the tripper can start dual first alarm and second alarm simultaneously, improves the reliability of reporting to the police, and the accuracy is reported to the police to the dropout condition fast.
Description
Technical Field
The utility model belongs to the technical field of power electrical equipment, concretely relates to dropout alarm device and surge protector.
Background
Surges are also called surge waves, and as the name suggests, are transient over-voltages that exceed normal operating voltages. A surge protector, also called a lightning protector, is an electronic device for providing safety protection for various electronic equipment, instruments and meters and communication lines. When spike current or voltage is suddenly generated in an electric loop or a communication line due to external interference, the surge protector can conduct and shunt in a very short time, so that damage of surge to other equipment in the loop is avoided.
The surge protector mainly comprises a lightning protection module and a tripping alarm device, the tripping alarm device is connected with the lightning protection module, when the self deterioration of the lightning protection module generates leakage current, the lightning protection module generates heat, the tripping alarm device acts at the moment, the lightning protection module is separated from a ground electrode, short-circuit fault is avoided, and the tripping alarm device acts and gives an alarm.
The main body of the existing alarm device comprises an alarm module, the alarm module is connected with a lightning protection module through a line, and when the lightning protection module is tripped, an audible and visual alarm signal is sent out. The problem that the alarm module is not started when the lightning protection module is tripped due to the fact that line connection is prone to failure and poor in reliability is caused.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the defect among the prior art, provide a dropout alarm device and surge protector, can reach dual warning lightning protection module and take place the dropout state, improve the reliability that the dropout was reported to the police.
In order to achieve the above object, the utility model provides a tripping alarm device, include: the device comprises a release, a first alarm and a second alarm;
the tripper is welded with the lightning protection module, and the tripper can move to warn the lightning protection module of tripping;
the tripper is connected with the first alarm and the second alarm respectively, and the first alarm and the second alarm can be started simultaneously when the tripper moves.
Optionally, the first alarm comprises a travel switch and a circuit board;
the travel switch is connected to the circuit board, and the circuit board is used for transmitting opening and closing signals of the travel switch.
Furthermore, the first alarm is arranged at the lower end of the release, so that when the release is separated from the lightning protection module, the change of the travel switch signal alarms to a circuit board.
Furthermore, first alarm setting is in one side of release, be provided with the bellying on the release, the bellying orientation first alarm to when making the release with lightning protection module breaks away from, bellying and travel switch contact stroke signal change report to the circuit board.
Optionally, the second alarm comprises a display panel hinged on the upper side of the release;
the display panel has a first display portion and a second display portion, the display panel having at least a first state and a second state;
in a first state, the lightning protection module is welded with the release, and the display panel is positioned at a first display part;
and in a second state, the lightning protection module is separated from the release, and the release moves upwards to be in contact with the display panel, so that the display panel rotates from the first display part to the second display part.
Optionally, the release includes a determination rod and an elastic member;
one end of the judging rod is connected with the lightning protection module;
a hollow-out part is arranged in the judging rod, and the elastic piece is connected with the inside of the hollow-out part.
Furthermore, an alarm display block is arranged at the end part of the judgment rod, and the alarm display block can protrude out of the shell of the tripping alarm device.
Furthermore, the release also comprises a track frame, a track groove is arranged on the track frame, and the judgment rod can move along the track groove.
Furthermore, a guide block is arranged on one side of the tripper, a guide groove is formed in one side of the track frame, and the guide block can move along the guide groove.
The utility model also provides a surge protector, include: lightning protection module, circuit module and dropout alarm device.
A dropout alarm device and surge protector, its beneficial effect is: through being connected the release with first alarm and second alarm respectively, realize when the lightning protection module takes place to trip, the release can remove, starts first alarm and the second alarm of dual alarming effect simultaneously, improves the reliability of tripping alarm, and the accuracy is reported to the police to the dropout condition fast.
Drawings
Fig. 1 is a front view of a trip alarm device according to a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of a track frame according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a first alarm provided in a first embodiment of the present invention;
fig. 4 is a schematic structural diagram of a second alarm provided in the first embodiment of the present invention;
fig. 5 is a front view of a trip unit according to an embodiment of the present invention;
fig. 6 is a back view of a trip unit according to a first embodiment of the present invention;
fig. 7 is a front view of a trip alarm device provided in the second embodiment of the present invention;
fig. 8 is a front view of a trip alarm device provided in the third embodiment of the present invention;
fig. 9 is a back view of the trip alarm device provided by the third embodiment of the present invention.
1. A trip alarm device; 2. a lightning protection module; 3. a circuit module; 11. a release; 12. a first alarm; 13. a second alarm; 111. a boss portion; 112. a judgment lever; 113. an elastic member; 114. a rail frame; 115. A track groove; 116. a guide block; 117. a guide groove; 118. a first rod body; 119. a second rod body; 1110. an alarm display block; 121. a travel switch; 122. a circuit board; 131. a display panel; 132. a first display unit; 133. And a second display section.
Detailed Description
The trip alarm device 1 and the system of the present invention will be described in detail with reference to the accompanying drawings.
Example one
As shown in fig. 1, an embodiment of the present invention provides a trip alarm device 1, including: a release 11, a first alarm 12 and a second alarm 13; the release 11 is welded with the lightning protection module 2, and the release 11 can move to warn the lightning protection module 2 of tripping; the tripper 11 is connected with the first alarm 12 and the second alarm 13 respectively, and the tripper 11 can start the first alarm 12 and the second alarm 13 simultaneously when moving.
Through being connected release 11 with first alarm 12 and second alarm 13 respectively, realize when lightning protection module 2 takes place to trip, release 11 can remove, starts first alarm 12 and second alarm 13 of dual alarming effect simultaneously, improves the reliability of tripping alarm, and the accuracy is reported to the police to the dropout condition fast.
Specifically, the lightning protection module 2 is welded with the release 11, and when the lightning protection module 2 derives peak current or voltage, current is derived through the release 11; when the lightning protection module 2 is tripped, because the temperature is too high, the welding points of the lightning protection module 2 and the tripper 11 are fused, namely the connection relation between the lightning protection module 2 and the tripper 11 is removed, and the tripper 11 moves by arranging a spring in the tripper 11, so that when the welding points between the lightning protection module 2 and the tripper 11 are fused, and the first alarm 12 and the second alarm 13 are started to alarm.
Optionally, the first alarm 12 includes a travel switch 121 and a circuit board 122; the travel switch 121 is connected to the circuit board 122, and the circuit board 122 is used for transmitting an opening and closing signal of the travel switch 121.
Specifically, the lightning protection module 2 is welded with the release 11, when the lightning protection module 2 derives a peak current or voltage, the travel switch 121 is in an open or closed state, and the circuit board 122 receives an open or closed signal of the travel switch 121 and transmits the signal to the upper computer; when the lightning protection module 2 is tripped, because the temperature of the lightning protection module 2 is too high, the welding point of the lightning protection module 2 and the tripper 11 is fused, that is, the connection relation between the lightning protection module 2 and the tripper 11 is removed, the tripper 11 moves upwards, the travel switch 121 is in a closed or open state, the circuit board 122 receives the closed or open signal of the travel switch 121 and transmits the signal to the upper computer, that is, the circuit board 122 receives the signal of the change of the signal of the travel switch 121, that is, the signal of the trip is transmitted to the upper computer, and the upper computer can obtain a warning signal.
The travel switch 121 of the first alarm 12 receives the signal and transmits the signal out through the circuit board 122, so that the electric signal alarm has good reliability, a compact structure and a small overall volume.
Wherein, travel switch 121 and circuit board 122 can set up in the casing, are favorable to the overall installation, and are favorable to whole signal transmission's reliability.
The travel switch 121 comprises a main body and a contact, wherein the contact is closed on the main body, namely the travel switch 121 is in a closed state; the contacts are far from the body, i.e. the travel switch 121 is in the open state.
Further, first alarm 12 sets up one side of release 11, be provided with bellying 111 on the release 11, bellying 111 orientation first alarm 12 to when making release 11 with lightning protection module 2 breaks away from, bellying 111 and travel switch 121 contact stroke signal change report to the police to circuit board 122.
Specifically, the lightning protection module 2 is welded with the release 11, when the lightning protection module 2 derives a peak current or voltage, the contact of the travel switch 121 is in an open or closed state, and the circuit board 122 receives an open or closed signal of the travel switch 121 and transmits the signal to the upper computer; when lightning protection module 2 takes place to trip, because the high temperature, lightning protection module 2 fuses with the welding point of release 11, also the relation of connection between lightning protection module 2 and release 11 gets rid of, release 11 rebound, travel switch 121 is in the state of closing or opening, circuit board 122 receives closing or the signal transmission of opening of travel switch 121 to the host computer, also signal that circuit board 122 received travel switch 121 signal change, and then signal transmission to the host computer with the trip, host computer department can obtain a warning signal.
The first alarm 12 is disposed on the left side of the trip unit 11, the protruding portion 111 of the trip unit 11 is disposed on the left side of the main body, and in the process that the trip unit 11 moves up, the protruding portion 111 can press the contact of the travel switch 121, so that the contact is changed from an on state to an off state, and further, the state change of the travel switch 121 is transmitted to the circuit board 122.
The protruding portion 111 is disposed at the lower side of the trip unit 11, and the contact of the travel switch 121 is also located at the lower portion of one side of the trip unit 11, so that when the trip unit 11 is displaced slightly, the protruding portion 111 at the lower side of the trip unit 11 can still press and contact the contact of the travel switch 121, and an alarm is realized.
The front end of the protrusion 111 may be wedge-shaped, so that when the protrusion 111 contacts with the contact of the travel switch 121, the contact has a larger contact area, and the contact of the travel switch 121 can be stably pressed.
Optionally, the second alarm 13 includes a display panel 131, and the display panel 131 is hinged on the upper side of the release 11; the display panel 131 has a first display portion 132 and a second display portion 133, the display panel 131 having at least a first state and a second state; in a first state, the lightning protection module 2 is welded to the release 11, and the display panel 131 is located at the first display portion 132; in the second state, the lightning protection module 2 is separated from the release 11, and the release 11 moves upward to contact the display panel 131, so that the display panel 131 rotates from the first display portion 132 to the second display portion 133.
By arranging the display panel 131 with the first display part 132 and the second display part 133 on the upper side of the release 11, the lightning protection module 2 is welded with the release 11 in the first state, and when the lightning protection module 2 derives peak current or voltage, the display panel 131 is in the first display part 132; in the second state, that is, when the lightning protection module 2 is tripped, due to an excessively high temperature, the welding point between the lightning protection module 2 and the trip unit 11 is fused, that is, the connection relationship between the lightning protection module 2 and the trip unit 11 is removed, the trip unit 11 moves upward, and the trip unit 11 collides with the display panel 131 hinged to the upper side, so that the display panel 131 is located in the second display unit 133.
The first display portion 132 may be a green mark plate, that is, the first display portion 132 protrudes the shell of the trip alarm device to display when the lightning protection module 2 is welded to the trip unit 11, and the second display portion 133 may be a red mark plate, that is, the second display portion 133 protrudes the shell of the trip alarm device to display when the lightning protection module 2 is tripped from the trip unit 11; specifically, when the display panel 131 is in the green marking panel surface, that is, the lightning protection module 2 is welded to the release 11, and the lightning protection module 2 derives the peak current or voltage; when the display panel 131 is located at the red mark panel surface, that is, the lightning protection module 2 is tripped, because the temperature is too high, the welding point of the lightning protection module 2 and the tripper 11 is fused, that is, the connection relation between the lightning protection module 2 and the tripper 11 is removed, the tripper 11 moves upwards to collide with the display panel 131, the display panel 131 rotates to the second display part 133 from the first display part 132, and human eyes observe the display panel 131 to rapidly judge whether the lightning protection module 2 is tripped or not.
Wherein, the display panel 131 may be hinged on the upper side of the rail frame 114 of the trip unit 11, and the display panel 131 is hinged with the rail frame 114 through a hinge shaft. The second alarm 13 further comprises a collision plate, the collision plate is arranged opposite to the display panel 131, the hinge shaft is connected between the collision plate and the display panel 131, the collision plate is arranged right above the release 11, when the lightning protection module 2 is released, the release 11 moves upwards to collide with the collision plate, and the collision plate is stressed, namely, the display panel 131 rotates.
Optionally, the trip unit 11 includes a determination rod 112 and an elastic member 113; one end of the judgment rod 112 is connected with the lightning protection module 2; a hollow portion is arranged in the judgment rod 112, and the elastic member 113 is connected in the hollow portion.
The lightning protection module 2 is welded with the release 11 by placing the elastic piece 113 in the hollow part of the judgment rod 112, and when the lightning protection module 2 derives the peak current or voltage, the elastic piece 113 is in a compressed state in the hollow part; when the lightning protection module 2 is tripped, due to the over-high temperature, the welding point of the lightning protection module 2 and the tripper 11 is fused, that is, the connection relationship between the lightning protection module 2 and the tripper 11 is removed, the tripper 11 moves upwards, and the elastic piece 113 is in the elastic release stage in the hollow part to drive the tripper 11 to move upwards quickly.
Wherein, elastic component 113 includes spring and support hyoplastron to be provided with guide post 113 on track frame 114, the spring housing is established on guide post 113, avoids the spring when the extension, has great elasticity and leads to its card to advance in supporting the hyoplastron, and is favorable to installing the spring in track frame 114 and fretwork portion, improves the installation effectiveness, avoids the hidden danger that the release does not lift.
Further, the trip unit 11 further includes a rail frame 114, a rail groove 115 is disposed on the rail frame 114, and the determination rod 112 can move along the rail groove 115.
By moving the determination rod 112 along the track groove 115 formed in the track frame 114, when the determination rod 112 is tripped in the lightning protection module 2, the trip unit 11 can move upward along the predetermined track groove 115, thereby avoiding the problem that the determination rod 112 is deflected by the huge elastic force of the elastic member 113.
Wherein a rail groove 115 is provided along both edges of the rail housing 114 so that the determination bar 112 can move within the rail groove 115.
The track groove 115 includes a first direction limiting edge to enable the trip unit 11 to move in the first direction, and the track groove 115 includes a second direction limiting edge to prevent the trip unit 11 from separating from the track groove 115 in the second direction, so that the guiding effect is improved.
Further, a guide block 116 is disposed on one side of the trip unit 11, and a guide groove 117 is disposed on one side of the rail frame 114, wherein the guide block 116 can move along the guide groove 117.
Through being provided with convex guide block 116 in one side of tripper 11, track frame 114 is provided with guide way 117 in the corresponding one side to guide tripper 11 can be along track frame 114 rapid and stable's removal, improve the direction effect.
The guide block 116 may be disposed on one side of the determination rod 112, and the guide block 116 may be disposed in the middle of the determination rod 112, so that the up-down, front-back movement of the determination rod 112 is limited.
Further, the determination rod 112 includes a first rod 118 and a second rod 119, and the first rod 118 and the second rod 119 are detachably connected.
The first rod body 118 and the second rod body 119 of the judgment rod 112 are detachably connected, and the first rod body 118 is welded to the lightning protection module 2, so that the first rod body 118 is made of a material which is resistant to high temperature and conductive, the overall cost of the judgment rod 112 is reduced, and economic benefits are improved.
Specifically, the first rod 118 and the second rod 119 are detachably connected, that is, the determination rod 112 is divided into two parts, one part of the first rod 118 is welded to the lightning protection module 2, only the material of the one part of the first rod 118 connected to the lightning protection module 2 needs to be selected as a material having heat resistance and conductivity, the material of the second rod 119 is not limited, and the first rod 118 and the second rod 119 are detachably connected, so that the stability of the first rod 118 and the second rod 119 of the determination rod 112 can be ensured, and the effect of reducing the cost can be achieved.
Wherein, first body of rod 118 and second body of rod 119 can be dismantled and be connected, can be that first body of rod 118 and second body of rod 119 joint are connected, also can be through the connecting piece connection, as long as can realize first body of rod 118 and second body of rod 119 can dismantle to link.
Optionally, a limiting hole is formed in the determination rod 112, so that a fixing member passes through the limiting hole to fix the determination rod 112 on a fixing surface.
The judgment rod 112 is provided with the limiting hole, so that the fixing piece penetrates through the limiting hole to fix the judgment rod 112 on the fixing surface, the judgment rod 112 is conveniently welded with the lightning protection module 2, and the welding efficiency of the judgment rod 112 and the lightning protection module 2 is improved.
The limiting hole may be disposed on the second rod 119, i.e., located at the upper end of the overall judgment rod 112, so as to avoid the limiting hole from affecting the strength of the overall judgment rod 112 at the lower side, or interfering with the welding of the judgment rod 112 and the lightning protection module 2.
Wherein, spacing hole can be the round hole, also the mounting can be cylinder pole or screw rod etc. as long as can pass spacing hole will judge that pole 112 fixes on the stationary plane can, will judge that pole 112 and lightning protection module 2 welding back can take out the mounting, can not influence holistic judgement pole 112 and lightning protection module 2 and be connected.
Wherein, the mounting can be standard components such as bolt, screw rod, also can be the body of rod, as long as can with spacing hole adaptation can.
The utility model also provides a surge protector, include: lightning protection module 2, circuit module 3 and trip alarm device 1.
The lightning protection module 2 and the circuit module 3 are respectively connected to two sides of the tripping alarm device 1; specifically, the circuit module 3 is inserted into one side of the rail frame 114 of the trip alarm device 1, the lightning protection module 2 is welded to the judgment rod 112 of the trip alarm device 1, when the lightning protection module 2 is tripped, the welding relation between the lightning protection module 2 and the judgment rod 112 is released, the judgment rod 112 moves upward along the rail frame 114, and the first alarm 12 and the second alarm 13 are started to perform trip alarm.
A dropout alarm device 1 and surge protector, its beneficial effect is: through being connected release 11 with first alarm 12 and second alarm 13 respectively, realize when lightning protection module 2 takes place to trip, release 11 can remove and start dual first alarm 12 and second alarm 13 simultaneously, improves the reliability of tripping alarm, and the accuracy is reported to the police to the dropout condition fast.
Example two
As shown in fig. 7, the second embodiment of the present invention provides a trip alarm device 1, wherein the first alarm 12 is disposed at the lower end of the trip unit 11, so that when the trip unit 11 is separated from the lightning protection module 2, the signal of the travel switch 121 changes and alarms to the circuit board 122.
Specifically, the first alarm 12 is arranged at the lower end of the release, that is, the circuit board 122 of the first alarm 12 and the travel switch 121 are integrally arranged at the lower end of the release, and the contact of the travel switch 121 is over against the judgment rod 112 of the release, when the judgment rod 112 is welded to the lightning protection module 2, the judgment rod 112 can press the contact of the travel switch 121, and the travel switch 121 is in a closed state; when the lightning protection module 2 is tripped and the welding point between the judgment rod 112 and the travel switch 121 is melted, the judgment rod 112 moves under the action of the elastic force, i.e. is separated from the contact of the travel switch 121, the travel switch 121 is in a disconnected state, and then the circuit board 122 receives a signal of the change of the signal of the travel switch 121, and the main chip on the circuit board 122 transmits the signal change to realize alarming.
Wherein, circuit board 122 is located travel switch 121's downside, and travel switch 121 lug connection realizes travel switch 121 fixed stability on circuit board 122 to still be provided with main chip on the circuit board 122, main chip spreads travel switch 121's signal change, and then transmits to the host computer, reports to the police in host computer department.
EXAMPLE III
Fig. 8 is a front view of a trip alarm device provided in the third embodiment of the present invention; fig. 9 is a back view of the trip alarm device provided by the third embodiment of the present invention.
As shown in fig. 8-9, the third embodiment of the present invention provides a tripping alarm device 1, wherein the end of the determination rod 112 is provided with an alarm display block 1110, and the alarm display block 1110 can protrude out of the casing of the tripping alarm device 1.
By arranging the alarm display block 1110 at the upper end of the judgment rod 112, when the judgment rod 112 is detached from the lightning protection module 2 and the judgment rod 112 moves upwards under the action of the elastic member 113, the alarm display block 1110 at the upper end of the judgment rod 112 can protrude out of the shell of the tripping alarm device 1, and a user can see the alarm display block 1110 to know alarm information.
The alarm display block 1110 can be a block body with obvious oil coating color, and can play a role in visually observing an intuitive alarm signal.
To sum up, the utility model provides a dropout alarm device 1 and surge protector through being connected tripper 11 with first alarm 12 and second alarm 13 respectively, realizes when lightning protection module 2 takes place to trip, and tripper 11 can remove and start dual first alarm 12 and second alarm 13 simultaneously, improves the reliability that the dropout was reported to the police, and the accuracy is reported to the police to the dropout condition fast.
The above embodiments are only examples of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A trip alarm device, comprising: the trip unit comprises a release (11), a first alarm (12) and a second alarm (13);
the release (11) is welded with the lightning protection module (2), and the release (11) can move to warn the lightning protection module (2) of tripping;
release (11) respectively with first alarm (12) and second alarm (13) are connected, first alarm (12) and second alarm (13) can be started simultaneously when release (11) remove.
2. Trip alarm device according to claim 1, characterised in that the first alarm (12) comprises a travel switch (121) and a circuit board (122);
the travel switch (121) is connected to the circuit board (122), and the circuit board (122) is used for receiving signal changes of the travel switch (121).
3. The trip alarm device according to claim 2, wherein the first alarm (12) is disposed at a lower end of the trip unit (11) so that when the trip unit (11) is separated from the lightning protection module (2), a signal change of the travel switch (121) alarms to a circuit board (122).
4. The trip alarm device according to claim 2, wherein the first alarm (12) is disposed on one side of the trip unit (11), a protrusion (111) is disposed on the trip unit (11), the protrusion (111) faces the first alarm (12), so that when the trip unit (11) is separated from the lightning protection module (2), the protrusion (111) contacts with a travel switch (121), and a signal change of the travel switch (121) is alarmed to a circuit board (122).
5. Trip alarm device according to claim 1, characterised in that said second alarm (13) comprises a display panel (131), said display panel (131) being hinged on the upper side of said trip unit (11);
the display panel (131) has a first display section (132) and a second display section (133), the display panel (131) having at least a first state and a second state;
in a first state, the lightning protection module (2) is welded with the release (11), and the display panel (131) is positioned on a first display part (132);
in a second state, the lightning protection module (2) is separated from the release (11), and the release (11) moves to contact with the display panel (131) so that the display panel (131) rotates from the first display part (132) to the second display part (133).
6. The trip alarm device according to claim 1, wherein the trip unit (11) includes a determination lever (112) and an elastic member (113);
one end of the judgment rod (112) is connected with the lightning protection module (2);
a hollow-out part is arranged in the judging rod (112), and the elastic piece (113) is connected into the hollow-out part.
7. The trip alarm device according to claim 6, wherein an alarm display block (1110) is provided at an end of the determination lever (112), and the alarm display block (1110) can protrude from a housing of the trip alarm device.
8. The trip alarm device according to claim 6, wherein the trip unit (11) further comprises a rail frame (114), the rail frame (114) is provided with a rail groove (115), and the determination lever (112) is movable along the rail groove (115).
9. The trip alarm device according to claim 8, wherein a guide block (116) is provided on one side of the trip unit (11), and a guide groove (117) is provided on one side of the rail housing (114), the guide block (116) being movable along the guide groove (117).
10. A surge protector, comprising: lightning protection module (2), circuit module (3) and trip alarm device (1) according to any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922020179.8U CN211480915U (en) | 2019-11-14 | 2019-11-14 | Tripping alarm device and surge protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922020179.8U CN211480915U (en) | 2019-11-14 | 2019-11-14 | Tripping alarm device and surge protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211480915U true CN211480915U (en) | 2020-09-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922020179.8U Active CN211480915U (en) | 2019-11-14 | 2019-11-14 | Tripping alarm device and surge protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211480915U (en) |
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2019
- 2019-11-14 CN CN201922020179.8U patent/CN211480915U/en active Active
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