CN114597850B - Signal overvoltage protection device - Google Patents
Signal overvoltage protection device Download PDFInfo
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- CN114597850B CN114597850B CN202210301764.9A CN202210301764A CN114597850B CN 114597850 B CN114597850 B CN 114597850B CN 202210301764 A CN202210301764 A CN 202210301764A CN 114597850 B CN114597850 B CN 114597850B
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- overvoltage protection
- conductive plate
- signal
- mounting groove
- rod
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- 238000004891 communication Methods 0.000 claims abstract description 49
- 238000013016 damping Methods 0.000 claims abstract description 24
- 230000008054 signal transmission Effects 0.000 claims abstract description 22
- 230000000670 limiting effect Effects 0.000 claims description 48
- 238000009434 installation Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 5
- 230000003139 buffering effect Effects 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000012423 maintenance Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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- Emergency Protection Circuit Devices (AREA)
Abstract
The invention discloses a signal overvoltage protection device, which comprises a communication signal transmission mechanism and an overvoltage protection mechanism; the communication signal transmission mechanism comprises a shell, a mounting groove arranged in the shell, a damping groove arranged below the mounting groove and a communication interface arranged on the side wall of the shell; the overvoltage protection mechanism is detachably connected with the mounting groove and comprises a mounting flange, a contact and a push rod, wherein the mounting flange is arranged on the side wall of the whole body of the overvoltage protection mechanism, one end of the contact is arranged at the bottom of the overvoltage protection mechanism, and the other end of the contact is connected with the push rod; the invention can not interrupt communication signal transmission when the signal overvoltage protection device is replaced, and solves the problem that the module falls off due to the fact that the signal overvoltage protection device is arranged in a vibration environment and is in a vibration state for a long time; and the on-off condition of the signal line can be monitored, early warning can be performed in time, and the fault cause can be distinguished.
Description
Technical Field
The invention relates to the technical field of overvoltage protection, in particular to a signal overvoltage protection device.
Background
Overvoltage refers to the phenomenon of long-time voltage fluctuation that the root mean square value of alternating current voltage is increased to exceed 10% of rated value under power frequency and the duration time is longer than 1 minute; the occurrence of overvoltage is usually a consequence of the momentary switching of the load. Which occurs in normal use with inductive or capacitive loads on or off. Overvoltage refers to the phenomenon of long-time voltage fluctuation that the root mean square value of alternating current voltage is increased to exceed 10% of rated value under power frequency and the duration time is longer than 1 minute; the occurrence of overvoltage is often the result of load switching, for example: cut off a certain large capacity load or energize a capacitor bank (overvoltage caused by excess reactive compensation). The abnormal voltage rise exceeding the working voltage of the power system under specific conditions belongs to an electromagnetic disturbance phenomenon in the power system. On the one hand, the insulation of the electrical equipment is resistant to working voltage for a long time, and meanwhile, the electrical equipment must also be capable of bearing overvoltage with a certain amplitude, so that the safe and reliable operation of the power system can be ensured. The method is used for researching the causes of various overvoltages, predicting the amplitude of the overvoltages, taking measures to limit the overvoltages, is a precondition for determining the insulation fit of the power system, and has important significance for manufacturing electrical equipment and running the power system.
At present, the traditional signal overvoltage protection device is difficult to meet the current use requirements due to the structural problem, such as: communication signal transmission can be interrupted when the signal overvoltage protection device is replaced, normal work and operation of communication equipment are difficult to ensure, maintenance cost of the signal overvoltage protection device is increased, professional technical requirements of maintenance personnel are increased, and working efficiency of replacing the signal overvoltage protection device is reduced. The signal overvoltage protection device is arranged in a vibration environment, and is easy to cause the module to fall off due to the fact that the signal overvoltage protection device is in a vibration state for a long time. The on-off condition of the signal line signal cannot be detected in time.
Disclosure of Invention
This section is intended to outline some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description summary and in the title of the application, to avoid obscuring the purpose of this section, the description summary and the title of the invention, which should not be used to limit the scope of the invention.
The present invention has been made in view of the above-mentioned problems with the existing signal overvoltage protection devices.
Therefore, an object of the present invention is to provide a signal overvoltage protection device, which solves the problem that the conventional communication device is difficult to meet the current use requirement due to the structural problem, such as: when the signal overvoltage protection device is replaced, communication signal transmission is interrupted, normal work and operation of communication equipment are difficult to ensure, maintenance cost of the signal overvoltage protection device is increased, professional technical requirements of maintenance personnel are increased, and working efficiency of replacing the signal overvoltage protection device is reduced; the signal overvoltage protection device is arranged in a vibration environment, and is easy to cause the module to fall off due to the fact that the signal overvoltage protection device is in a vibration state for a long time; the on-off condition of the signal line signal cannot be detected in time.
In order to solve the technical problems, the invention provides the following technical scheme: a signal overvoltage protection device comprises a communication signal transmission mechanism and an overvoltage protection mechanism; the communication signal transmission mechanism comprises a shell, a mounting groove arranged in the shell, a damping groove arranged below the mounting groove and a communication interface arranged on the side wall of the shell; the overvoltage protection mechanism is detachably connected with the mounting groove and comprises a mounting flange, a contact and a push rod, wherein the mounting flange is arranged on the side wall of the whole body of the overvoltage protection mechanism, the contact is arranged at the bottom of the overvoltage protection mechanism, and the push rod is connected with the contact.
As a preferred embodiment of the signal overvoltage protection device according to the invention, the following applies: limiting holes and limiting pull rods arranged in the limiting holes are symmetrically arranged in the side wall of the upper end of the shell.
As a preferred embodiment of the signal overvoltage protection device according to the invention, the following applies: the limiting hole vertically penetrates through the axial side wall of the shell and comprises a first limiting hole and a second limiting hole which are mutually communicated; the radial diameter of the first limiting hole is smaller than that of the second limiting hole.
As a preferred embodiment of the signal overvoltage protection device according to the invention, the following applies: the limiting pull rod comprises a pull buckle, a pull buckle plate, a connecting rod, a first spring and a limiting block which are connected in sequence; the pull buckle and the pull buckle plate are arranged on the outer side of the shell, the connecting rod is arranged in the first limiting hole, and the first spring and the limiting block are arranged in the second limiting hole.
As a preferred embodiment of the signal overvoltage protection device according to the invention, the following applies: the mounting groove is formed in the first mounting groove and the second mounting groove from outside to inside; a mounting guide rod correspondingly connected with the mounting flange is arranged in the first mounting groove, and a mounting spring is sleeved on the mounting guide rod; the second mounting groove comprises a connecting contact and a through hole, wherein the connecting contact and the through hole are arranged at the bottom, and the ejector rod can be matched and penetrated in the through hole.
As a preferred embodiment of the signal overvoltage protection device according to the invention, the following applies: the damping groove comprises an input/output end, a conductive plate, a damping spring and a supporting rod; the input and output end is electrically connected with the communication interface; the conductive plate is movably arranged below the second mounting groove and is electrically connected with the input and output end; one end of the damping spring is connected to the bottom of the conducting plate, and the other end of the damping spring is connected to the side wall of the bottom of the damping groove; one end of the supporting rod is arranged on the lower side wall of the mounting groove, and the other end of the supporting rod is connected with the inner side wall of the bottom of the damping groove.
As a preferred embodiment of the signal overvoltage protection device according to the invention, the following applies: the input/output end head comprises a first conducting strip electrically connected with the communication interface, a second conducting strip electrically connected with the connection contact and a third conducting strip electrically connected with the conducting plate.
As a preferred embodiment of the signal overvoltage protection device according to the invention, the following applies: the conductive plate comprises a connecting groove, a connecting spring and a fourth conductive sheet, one end of the connecting spring is connected to the bottom side of the connecting groove, the other end of the connecting spring is connected with the fourth conductive sheet, and the fourth conductive sheet is electrically connected with the third conductive sheet.
As a preferred embodiment of the signal overvoltage protection device according to the invention, the following applies: the conductive plate is also provided with a sliding sleeve, and the sliding sleeve is sleeved on the supporting rod.
As a preferred embodiment of the signal overvoltage protection device according to the invention, the following applies: the communication signal transmission mechanism further comprises a line monitor interface arranged on the side wall of the shell, and the line monitor interface is connected with the first conducting strip through a conducting wire.
The invention has the beneficial effects that: the invention can not interrupt communication signal transmission when the signal overvoltage protection device is replaced, ensures normal work and operation of communication equipment, reduces maintenance cost of the signal overvoltage protection device, reduces professional technical requirements of maintenance personnel, and improves working efficiency of replacing the signal overvoltage protection device; meanwhile, the problem that the module falls off due to the fact that the signal overvoltage protection device is arranged in a vibration environment and is in a vibration state for a long time is solved; and the on-off condition of the signal line can be monitored, early warning can be performed in time, and the fault cause can be distinguished.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:
fig. 1 is a schematic diagram of the overall structure of the signal overvoltage protection device of the present invention.
Fig. 2 is a schematic sectional view showing a disassembled state of the signal overvoltage protection device of the present invention.
Fig. 3 is a schematic sectional view showing an installation state of the signal overvoltage protection device of the present invention.
Fig. 4 is an enlarged schematic diagram of a signal overvoltage protection device according to the present invention.
Fig. 5 is a schematic half-sectional view of a communication signal transmission mechanism of the signal overvoltage protection device of the present invention.
Fig. 6 is an enlarged schematic diagram of a B-site of the signal overvoltage protection device according to the present invention.
Detailed Description
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present invention is not limited to the specific embodiments disclosed below.
Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Further, in describing the embodiments of the present invention in detail, the cross-sectional view of the device structure is not partially enlarged to a general scale for convenience of description, and the schematic is only an example, which should not limit the scope of protection of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in actual fabrication.
Example 1
Referring to fig. 1 and 2, a signal overvoltage protection device according to a first embodiment of the present invention is provided, which includes a communication signal transmission mechanism 100 for transmitting a normal communication signal and an overvoltage protection mechanism 200 for overvoltage protection of the communication signal transmission mechanism 100.
Wherein the communication signal transmission mechanism 100 comprises a housing 101, a mounting groove 102 arranged in the housing 101, a damping groove 103 arranged below the mounting groove 102, and a communication interface 104 arranged on the side wall of the housing 100; the overvoltage protection mechanism 200 is detachably connected with the mounting groove 102, and comprises a mounting flange 201, a contact 202 and a push rod 203, wherein the mounting flange 201 is arranged on the side wall of the whole body of the overvoltage protection mechanism 200, the mounting flange 201 is used for mounting the overvoltage protection mechanism 200 in the communication signal transmission mechanism 100, the contact 202 is arranged at the bottom of the overvoltage protection mechanism 200, and the contact 202 is used for detecting overvoltage in a communication signal of the communication signal transmission mechanism 100 so as to predict the amplitude of the overvoltage and take measures to limit the overvoltage; the contact 202 is provided with a jack 203, and the jack 203 can switch the signal communication line of the communication signal transmission mechanism 100.
Further, a symmetrical limiting hole 101a and a limiting pull rod 101b arranged in the limiting hole 101a are arranged above the side wall of the shell 101; the limiting hole 101a penetrates through the shell 101 and comprises a first limiting hole 101a-1 and a second limiting hole 101a-2 which are mutually communicated, wherein the diameter of the first limiting hole 101a-1 is smaller than that of the second limiting hole 101a-2; the limiting pull rod 101b comprises a pull buckle 101b-1, a pull buckle plate 101b-2, a connecting rod 101b-3, a first spring 101b-4 and a limiting block 101b-5 which are sequentially connected, the pull buckle 101b-1 and the pull buckle plate 101b-2 are arranged on the outer side of the shell 101, the pull buckle 101b-1 is fixedly connected with the pull buckle plate 101b-2, the connecting rod 101b-3 is arranged in the first limiting hole 101a-1, the first spring 101b-4 and the limiting block 101b-5 are arranged in the second limiting hole 101a-2, the size of the first spring 101b-4 and the size of the limiting block 101b-5 are larger than the diameter of the first limiting hole 101a-1, and in the using process of the limiting pull rod 101b, the pull buckle 101b-1 is pulled, so that the first spring 101b-4 and the limiting block 101b-5 are driven to move, and the limiting effect is achieved.
Example 2
Referring to fig. 3 and 4, a second embodiment of the present invention is different from the first embodiment in that: the mounting groove 102 is formed from the outside to the inside with a first mounting groove 102a and a second mounting groove 102b; the first mounting groove 102a comprises a mounting guide rod 102a-1 which is arranged corresponding to the mounting flange 201, and a mounting spring 102a-2 is sleeved on the mounting guide rod 102 a-1; the bottom of the second installation groove 102b is provided with an installation seat, the installation seat comprises a connecting contact 102b-1 and a through hole 102b-2, the connecting contact 102b-1 and a contact 202 of the overvoltage protection mechanism 200 are electrically contacted after the installation, the connecting contact is used for detecting the amplitude value of voltage and transmitting communication signals, a push rod 203 can be matched and penetrated in the through hole 102b-2 to push against a conductive plate 103b in the buffer groove 103, the conductive plate 103b moves downwards under the matching of a support rod 103d and a sliding sleeve 103b-4, so that a third conductive sheet 103a-3 on the input/output end 103 and a fourth conductive sheet 103b-3 on the conductive plate 103b are not electrically contacted any more, and the condition that a communication route of the invention is in the installation and use process is only provided with a communication route which can be communicated is avoided.
Further, compared to embodiment 1, the shock absorbing groove 103 includes an input/output terminal 103a, a conductive plate 103b, a shock absorbing spring 103c, and a support bar 103d; the input/output terminal 103a is electrically connected with the communication interface 104; the conductive plate 103b is located below the second mounting groove 102c and is electrically connected with the input/output end 103 a; one end of a damping spring 103c is connected to the bottom of the conductive plate 103b, and the other end is connected to the bottom side wall of the damping groove 103, when the device vibrates during operation, the damping spring 103c can effectively buffer the overvoltage protection mechanism 200, and the problem that a module falls off due to the fact that the signal overvoltage protection device is arranged in a vibration environment and is in a vibration state for a long time is solved; one end of the supporting rod 103d is connected with the mounting groove 102, and the other end is connected with the bottom side wall of the damping groove 103.
Further, the input/output terminal 103a further includes a first conductive sheet 103a-1 electrically connected to the communication interface 104, a second conductive sheet 103a-2 electrically connected to the connection contact 102c-1, and a third conductive sheet 103a-3 electrically connected to the conductive plate 103 b; the conductive plate 103b comprises a connecting groove 103b-1, a connecting spring 103b-2 and a fourth conductive sheet 103b-3, one end of the connecting spring 103b-2 is connected to the bottom side of the connecting groove 103b-1, the other end is connected to the fourth conductive sheet 103b-3, and the fourth conductive sheet 103b-3 is electrically connected to the third conductive sheet 103a-3; the conductive plate 103b is further provided with a sliding sleeve 103b-4, and the sliding sleeve 103b-4 is sleeved on the supporting rod 103 d.
After the overvoltage protection mechanism 200 is disassembled, the ejector rod 203 is pulled away from the 102b-2, the conductive plate 103b moves upwards along the direction of the supporting rod 103d under the elasticity of the damping spring 103c, so that the third conductive sheet 103a-3 on the input/output end 103 is in electrical contact with the fourth conductive sheet 103b-3 on the conductive plate 103b, meanwhile, the connection stability of the third conductive sheet 103a-3 and the fourth conductive sheet 103b-3 is ensured by the connecting spring 103b-2 below the fourth conductive sheet 103b-3, when the device vibrates during working, the connecting spring 103b-2 can provide effective buffering for the electrical connection position of the third conductive sheet 103a-3 and the fourth conductive sheet 103b-3, meanwhile, communication signal transmission is not interrupted during replacement of the signal overvoltage protection device, normal working and operation of communication equipment are ensured, maintenance cost of the signal overvoltage protection device is reduced, technical requirements of maintenance personnel are lowered, and working efficiency of the replacement signal overvoltage protection device is improved.
Example 3
Referring to fig. 5 and 6, a third embodiment of the present invention is different from the second embodiment in that: the communication signal transmission mechanism 100 further comprises a line monitor interface 105 arranged on the side wall of the shell 101, the line monitor interface 105 is connected with the first conducting strip 103a-1 through a wire, the line monitor interface 105 is externally connected with a line monitor, when a signal is connected, the line monitor does not respond, when the line is disconnected, the line monitor cannot acquire the signal through the line monitor interface 105, and at the moment, the line monitor can send out an alarm, so that the on-off condition of the signal line signal can be monitored, early warning can be timely carried out, and the fault cause can be distinguished.
Further, when the overvoltage protection mechanism 200 is replaced, the limit pull rod 101b is pulled out through the pull buckle 101b-1, the overvoltage protection mechanism 200 is removed from the installation guide rod 102a-1, at this time, the ejector rod 203 is separated from the conductive plate 103b, and the conductive plate 103b ascends under the action of the connecting spring 103b-2, so that the fourth conductive sheet 103b-3 on the conductive plate 103b is in electrical contact with the third conductive sheet 103a-3 on the lower side of the input/output end 103a, and the connection of the circuit is maintained; therefore, communication signal transmission can not be interrupted when the signal overvoltage protection device is replaced, normal work and operation of communication equipment are guaranteed, maintenance cost of the signal overvoltage protection device is reduced, professional technical requirements of maintenance personnel are reduced, and working efficiency of replacing the signal overvoltage protection device is improved.
The limiting pull rod 101b is pulled out of the pull buckle 101b-1, the replaced overvoltage protection mechanism 200 is installed on the installation guide rod 102a-1 through the installation flange 201, the limiting block 101b-5 on the limiting pull rod 101b clamps the installation flange 201 on the overvoltage protection mechanism 200, the ejector rod 203 presses the conductive plate 103b downwards, so that the fourth conductive sheet 103b-3 on the conductive plate 103b is separated from the third conductive sheet 103a-3 on the lower side of the input/output end 103a, and meanwhile, the contact 202 is in electrical contact with the connection contact 102b-1, and the connection of a circuit is maintained; in normal use, the contact 102b-1 is electrically contacted with the contact 202 of the overvoltage protection mechanism 200, so as to detect the voltage amplitude value and transmit the communication signal, the ejector rod 203 can be matched and penetrated in the through hole 102b-2 to prop against the conductive plate 103b in the buffer tank 103, and the conductive plate 103b moves downwards under the matching of the supporting rod 103d and the sliding sleeve 103b-4, so that the third conductive plate 103a-3 on the input/output end 103 is not electrically contacted with the fourth conductive plate 103b-3 on the conductive plate 103b any more, and only one communication route which can be connected is ensured in the process of installation and use of the communication route of the invention, thereby avoiding the occurrence of short circuit condition.
Furthermore, one end of the damping spring 103c is connected to the bottom of the conductive plate 103b, and the other end is connected to the bottom side wall of the damping groove 103, when the device vibrates during operation, the damping spring 103c can effectively buffer the overvoltage protection mechanism 200.
It should be noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present invention may be modified or substituted without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered in the scope of the claims of the present invention.
Claims (1)
1. A signal overvoltage protection device, characterized in that: comprising the steps of (a) a step of,
the communication signal transmission mechanism (100) comprises a shell (101), a mounting groove (102) arranged in the shell (101), a damping groove (103) arranged below the mounting groove (102) and a communication interface (104) arranged on the side wall of the shell (101);
the overvoltage protection mechanism (200) is detachably connected with the mounting groove (102) and comprises a mounting flange (201), a contact (202) and a push rod (203), wherein the mounting flange (201) is arranged on the side wall of the whole body of the overvoltage protection mechanism (200), the contact (202) is arranged at the bottom of the overvoltage protection mechanism (200), and the push rod (203) is connected with the contact (202);
a limiting hole (101 a) and a limiting pull rod (101 b) arranged in the limiting hole (101 a) are symmetrically arranged in the side wall of the upper end of the shell (101);
the limiting hole (101 a) vertically penetrates through the axial side wall of the shell (101) and comprises a first limiting hole (101 a-1) and a second limiting hole (101 a-2) which are mutually communicated; the radial diameter of the first limiting hole (101 a-1) is smaller than that of the second limiting hole (101 a-2);
the limiting pull rod (101 b) comprises a pull buckle (101 b-1), a pull buckle plate (101 b-2), a connecting rod (101 b-3), a first spring (101 b-4) and a limiting block (101 b-5) which are connected in sequence;
the pull buckle (101 b-1) and the pull buckle plate (101 b-2) are arranged on the outer side of the shell (101), the connecting rod (101 b-3) is arranged in the limiting hole (101 a) in a penetrating mode, the first spring (101 b-4) is sleeved on the connecting rod (101 b-3), and the limiting block (101 b-5) is arranged in the second limiting hole (101 a-2);
the mounting groove (102) is divided into a first mounting groove (102 a) and a second mounting groove (102 b) from outside to inside;
a mounting guide rod (102 a-1) correspondingly connected with the mounting flange (201) is arranged in the first mounting groove (102 a), and a mounting spring (102 a-2) is sleeved on the mounting guide rod (102 a-1);
the second mounting groove (102 b) comprises a connecting contact (102 b-1) and a through hole (102 b-2) which are arranged at the bottom, and the ejector rod (203) can be matched and penetrated in the through hole (102 b-2);
the damping groove (103) comprises an input/output end (103 a), a conductive plate (103 b), a damping spring (103 c) and a supporting rod (103 d);
the input/output end (103 a) is electrically connected with the communication interface (104);
the conductive plate (103 b) is movably arranged below the second mounting groove (102 b) and is electrically connected with the input/output end (103 a);
one end of the damping spring (103 c) is connected to the bottom of the conducting plate (103 b), and the other end is connected to the bottom side wall of the damping groove (103);
one end of the supporting rod (103 d) is arranged on the lower side wall of the mounting groove (102), and the other end of the supporting rod is connected with the inner side wall of the bottom of the damping groove (103);
the input/output terminal (103 a) comprises a first conductive sheet (103 a-1) electrically connected with the communication interface (104), a second conductive sheet (103 a-2) electrically connected with the connection contact (102 c-1), and a third conductive sheet (103 a-3) electrically connected with the conductive plate (103 b);
the conductive plate (103 b) comprises a connecting groove (103 b-1), a connecting spring (103 b-2) and a fourth conductive sheet (103 b-3), one end of the connecting spring (103 b-2) is connected to the bottom side of the connecting groove (103 b-1), the other end of the connecting spring is connected with the fourth conductive sheet (103 b-3), and the fourth conductive sheet (103 b-3) can be electrically connected with the third conductive sheet (103 a-3);
the ejector rod (203) can be matched and penetrated in the through hole (102 b-2) to prop against the conductive plate (103 b) in the buffer groove (103), and under the matching of the supporting rod (103 d) and the sliding sleeve (103 b-4), the conductive plate (103 b) moves downwards, so that the third conductive plate (103 a-3) on the input/output end (103) is not electrically contacted with the fourth conductive plate (103 b-3) on the conductive plate (103 b), only one communication route which can be communicated is ensured in the installation and use processes, and the occurrence of short circuit condition is avoided
After the overvoltage protection mechanism (200) is disassembled, the ejector rod (203) is pulled away from the supporting rod (102 b-2), the conductive plate (103 b) moves upwards along the direction of the supporting rod (103 d) under the elasticity of the damping spring (103 c), so that the third conductive plate (103 a-3) on the input/output end (103) is electrically contacted with the fourth conductive plate (103 b-3) on the conductive plate (103 b), meanwhile, the connection stability of the third conductive plate (103 a-3) and the fourth conductive plate (103 b-3) is ensured by the connection spring (103 b-2) below the fourth conductive plate (103 b-3), when the device is in vibration during operation, the connection spring (103 b-2) can provide effective buffering for the electrical connection position of the third conductive plate (103 a-3) and the fourth conductive plate (103 b-3), communication signal transmission is not interrupted during replacement of the signal overvoltage protection device, normal operation and operation of the communication equipment are ensured, the signal overvoltage protection device is reduced, professional and the service cost of the professional and the service personnel is reduced;
the conductive plate (103 b) is also provided with a sliding sleeve (103 b-4), and the sliding sleeve (103 b-4) is sleeved on the supporting rod (103 d);
the communication signal transmission mechanism (100) further comprises a line monitor interface (105) arranged on the side wall of the shell (101), the line monitor interface (105) is connected with the first conducting strip (103 a-1) through a wire, the line monitor interface (105) is externally connected with a line monitor, when a signal is connected, the line monitor does not respond, when the line is disconnected, the line monitor cannot acquire the signal through the line monitor interface (105), at the moment, the line monitor can send out an alarm, the on-off condition of the signal line signal can be monitored, early warning is timely carried out, and the fault reason is distinguished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210301764.9A CN114597850B (en) | 2022-03-24 | 2022-03-24 | Signal overvoltage protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210301764.9A CN114597850B (en) | 2022-03-24 | 2022-03-24 | Signal overvoltage protection device |
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| Publication Number | Publication Date |
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| CN114597850A CN114597850A (en) | 2022-06-07 |
| CN114597850B true CN114597850B (en) | 2024-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210301764.9A Active CN114597850B (en) | 2022-03-24 | 2022-03-24 | Signal overvoltage protection device |
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