CN110718802A - Lightning stroke protection device of remote centralized meter reading device - Google Patents

Lightning stroke protection device of remote centralized meter reading device Download PDF

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Publication number
CN110718802A
CN110718802A CN201911123987.5A CN201911123987A CN110718802A CN 110718802 A CN110718802 A CN 110718802A CN 201911123987 A CN201911123987 A CN 201911123987A CN 110718802 A CN110718802 A CN 110718802A
Authority
CN
China
Prior art keywords
positioning
sleeve
data line
end part
fixed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201911123987.5A
Other languages
Chinese (zh)
Inventor
王晟
赵义
李泽青
夏兆福
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tianjin Huachun Smart Energy Technology Development Co ltd
Original Assignee
Tianjin Huachun Smart Energy Technology Development Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tianjin Huachun Smart Energy Technology Development Co ltd filed Critical Tianjin Huachun Smart Energy Technology Development Co ltd
Priority to CN201911123987.5A priority Critical patent/CN110718802A/en
Publication of CN110718802A publication Critical patent/CN110718802A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/502—Bases; Cases composed of different pieces
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/621—Bolt, set screw or screw clamp
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/627—Snap or like fastening
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66—Structural association with built-in electrical component
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
    • H02H9/005—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection avoiding undesired transient conditions
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
    • H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
    • H02H9/045—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage adapted to a particular application and not provided for elsewhere
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
    • H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
    • H02H9/06—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage using spark-gap arresters

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  • Emergency Protection Circuit Devices (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

The invention provides a lightning stroke protection device of a remote meter reading device, which comprises a meter box, a positioning baffle, a mounting plate, a quick plug wire collecting end, an antenna system, a protection circuit breaker, a data wire connector and a communication protector, wherein the communication protector is electrically connected with the data wire connector and is fixedly arranged on the mounting plate in an integrated structure; this thunderbolt protection device not only maintains the collection and copies the ware and normally work under various thunderbolt conditions, and the convenient connection of the structure of data line joint under the field no tool bar condition can be solved, prevents simultaneously that data line plug and data line joint from breaking away from the connection, guarantees the connection stability of working process.

Description

Lightning stroke protection device of remote centralized meter reading device
Technical Field
The invention relates to the technical field of lightning protection devices, in particular to a lightning stroke protection device for an outdoor wireless or wired remote meter reading device.
Background
The meter in the prior art is generally installed outdoors through a simple installing box body, for a meter installed outdoors, the existing installing box body is too simple in structure and cannot protect the meter in all directions, for example, the damage of lightning surge to a meter circuit, the failure of a connector and the like exist, the connector is difficult to connect due to rusting of the connector during meter reading, the data connection cannot be effectively carried out, the cable connection of the connector is complex, the operation can be carried out only by a special tool bar, and the working efficiency of a meter reader is low; in addition, the realization of prior art's strapping table lightning protection function generally concatenates the lightning protection device in order to realize the lightning protection function on connecting, and lightning protection device installation reliability is not enough, is located the abominable field environment of environment, takes place easily not hard up to lead to the lightning protection function to become invalid.
Disclosure of Invention
In order to solve the defects of the prior art, the invention provides the lightning protection device of the remote centralized meter reading device, which is provided with the data line connector which is convenient to connect and convenient for technical personnel to operate, and the lightning protection device which is arranged on the lightning protection device and integrated with the connector can ensure the reliability of the installation of the centralized meter reading device and each element.
The invention is realized by the following technical scheme:
a lightning stroke protection device of a remote meter reading device comprises a meter box which is used for installing the meter reading device and can form a closed space, a positioning baffle plate of the positioning meter reading device, a mounting plate which is fixed on the lower portion in the meter box, a quick-plug wire collecting end which is used for connecting the meter reading device with each cable, an antenna system which is used for remotely interacting the meter reading device, a protection circuit breaker which is connected with a power supply cable of the meter reading device, a data line connector which is plugged with an external data line plug to transmit data and a communication protector which is positioned at the front end of the quick-plug wire collecting end at the rear end of the data line connector, wherein the communication protector is electrically connected with the data line connector and is installed on the mounting plate in an integrated structure, the quick-plug wire collecting end and the protection circuit breaker are fixed on the mounting plate, and the antenna system, the protection circuit breaker and the communication protector are electrically connected with the meter reading device through the quick-plug wire collecting end, wherein the communication protector comprises a, The common mode inductor is connected with the piezoresistor protection circuit and the TVS tube protection circuit;
the data line joint is connected with an external data line plug pin, which comprises a joint body, a fixed sleeve and a positioning sleeve, wherein the fixed sleeve and the positioning sleeve are connected with the joint body, the positioning sleeve is two semicircular cylinders which are buckled and connected through a buckling structure, the end part of the data line plug is limited between the two semicircular cylinders, one end of the positioning sleeve is a positioning end part with a convex step, the free end of the fixed sleeve is a fixed end part with a convex step in an inner hole, the positioning end part and the fixed end part are provided with a fan-shaped slot and a fan-shaped lug which are distributed annularly, the fan-shaped lug of the positioning end part is matched with the fan-shaped slot of the fixed end part, the fixed sleeve is also provided with a positioning groove connected with the fixed end part, an annular elastic sheet, the positioning end part is rotated, the elastic sheet elastically compresses the end surface of the positioning end part, so that the fan-shaped convex block of the positioning end part is seated on the fan-shaped convex block of the fixing end part.
Preferably, the voltage dependent resistor protection circuit comprises a first voltage dependent resistor MOV1, the first voltage dependent resistor MOV1 is connected across the two poles of the data communication terminal, the TVS tube protection circuit is connected across the two poles of the communication power supply terminal and comprises a second voltage dependent resistor MOV2, a semiconductor discharge tube TSS1 and a second voltage dependent resistor MOV3 which are connected in series, and the two poles of the data communication terminal are also connected with the TVS tube protection circuit.
Preferably, the first-stage varistor MOV1 is a 20D221K varistor, the second-stage first varistor MOV2 and the second-stage second varistor MOV3MOV3 are 10D221 varistors, and the semiconductor discharge tube TSS1 is a P3500SA discharge tube.
Preferably, the fixing sleeve comprises a sleeve nut pressed on the joint body and a connecting sleeve in threaded connection with the sleeve nut, and the positioning groove and the fixing end part are positioned on the connecting sleeve.
Preferably, be equipped with the antenna hole in the table case and by inserting the antenna groove that line concentration end lower extreme extended to the antenna hole soon, outside antenna system's antenna and insert antenna protector back and draw forth the table case by the antenna hole, on antenna protector was fixed in the mounting panel, antenna protector included a plurality of GDT and ESD that connect in parallel.
Preferably, be fixed with the cable sheath of L shape through flange joint on the table case lower extreme outer wall, the last port that cable sheath and table case are connected is equipped with sealed the pad, has a plurality of cross holes that are used for wearing to establish the cable on the sealed pad.
Compared with the prior art, the invention has the beneficial effects that:
this thunderbolt protection device's data line connects and inserts the circuit after becoming the module through fixed combination with communication protector, and be fixed in the module on the mounting panel, its connection stability is better, communication protector can satisfy the collection and copy the surge protection requirement of ware under various thunderbolt conditions, and the position sleeve and the fixed cover that the data line connects the setting, can bare-handedly accomplish the position sleeve and be connected with fixed cover with the position sleeve of being connected of data line plug, the convenient connection under the field no tool bar condition of having solved is refuted, prevent simultaneously that data line plug and data line from connecting the disconnection, guarantee the connection stability of working process.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of the overall structure of the lightning strike protection device of the invention;
FIG. 2 is a schematic view of the structure of the joint of FIG. 1;
FIG. 3 is a schematic view of the structure of the fixed end of FIG. 2;
fig. 4 is a circuit configuration diagram of the communication protector;
FIG. 5 is a circuit block diagram of the antenna protector;
in the figure: 1. meter box, 11, perspective window, 12, location baffle, 13, the mounting panel, 2, the concentrated terminal of fast inserting, 3, antenna system, 31, antenna protector, 4, communication protector, 5, the data line connects, 51, the joint body, 511, the contact pin, 52, the sleeve nut, 53, the adapter sleeve, 531, the constant head tank, 5311, compress tightly the plane, 532, fixed tip, 5321, fan-shaped lug, 5322, fan-shaped slot, 533, the jack, 54, the position sleeve, 541, the location tip, 542, the lock structure, 543, handheld portion, 55, the shell fragment, 6, connect the protective sheath, 7, the protection circuit breaker, 8, the cable sheath, 9, the data line plug.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-5, the lightning protection device for a remote meter reading device provided by the present invention comprises a meter box 1 for installing the meter reading device and forming a closed space, a transparent window 11 for observing a data window of the meter reading device in the meter box 1, a positioning baffle 12 for positioning the meter reading device, a mounting plate 13 fixed under the meter box 1, a fast plug wire collecting end 2 for connecting the meter reading device with each cable, an antenna system 3 for remote interaction of the meter reading device, a protection circuit breaker 7 connected with a power supply cable of the meter reading device, a data wire connector 5 inserted with an external data wire plug 9 to transmit data, and a communication protector 4 located at the front end of the fast plug wire collecting end 2 at the rear end of the data wire connector 5, wherein the communication protector 4 is electrically connected with the data wire connector 5 and assembled into an integrated structure through a connecting plate on the data wire connector 5, or form an organic whole through any other modularization connected mode, insert the circuit and fix on mounting panel 13 its entirety again, insert line terminal 2 and protective circuit breaker 7 fast and fix on mounting panel 13, antenna system 3, protective circuit breaker 7 and communication protector 4 are all through inserting line terminal 2 and collecting and copying the electrical connection fast, insert line terminal 2 use STTB2.5 fast and insert the terminal in market fast, wherein, the communication protector 4 includes piezoresistor protective circuit and TVS tube protective circuit cascaded sequentially, and connect the common mode inductance of piezoresistor protective circuit and TVS tube protective circuit, the piezoresistor protective circuit can absorb most of the energy of thunderbolt, the TVS tube protective circuit can absorb the residual surge energy, the multiple protection can prevent the damage to the latter stage circuit of the high-pressure of the thunderbolt;
after the data line connector 5 is connected with the pin 511 of the external data line plug 9, the connector is required to have a certain degree of stress capability to prevent the external force of the data line from disconnecting, the data line connector 5 comprises a connector body 51, a fixed sleeve connected with the connector body 51 and a positioning sleeve 54, the positioning sleeve 54 is two semicircular cylinders connected by a buckling structure 542 in a buckling manner, the positioning sleeve 54 is a rigid plastic product, the buckling structure 542 can be mutually matched convex points and concave grooves on a buckling section, or as shown in fig. 2, an extending end is inserted into a slot, the extending end and the slot section are provided with a convex point and a concave groove, the end of the data line plug 9 is limited between the two semicircular cylinders, referring to fig. 2 again, one end of the positioning sleeve 54 is a positioning end 541 with a step protruding on an outer circular surface, the free end of the fixed sleeve is a fixed end 532 with a step protruding in an inner hole, the positioning end 541 and the fixed end 532 are provided with a fan-shaped slot 5322 and, the fan-shaped convex block of the positioning end portion 541 is matched with the fan-shaped slot 5322 of the fixing end portion 532, the fixing sleeve is further provided with a positioning groove 531 positioned at the rear end of the fixing end portion 532, an annular elastic sheet 55 is arranged in the positioning groove 531, the handheld portion 543 on the handheld positioning sleeve 54 pulls the data line plug 9 to penetrate into the fixing sleeve and insert the data line connector 5, finally, the fan-shaped convex block of the positioning end portion 541 of the positioning sleeve 54 is inserted into the fan-shaped slot 5322 of the fixing end portion 532, the positioning end portion 541 is rotated, the elastic sheet 55 elastically compresses the end face of the positioning end portion 541, and the fan-shaped convex block of the positioning end portion 541 is located on the fan-shaped convex block 53.
The data line joint 5 and the communication protector 4 of the lightning strike protection device are fixedly combined into a module and then connected into a circuit, the module is fixed on the mounting plate 13, the connecting stability is good, the voltage dependent resistor protection circuit and the TVS tube protection circuit of the communication protector 4 have triple protection, not only have the capability of protecting common mode voltage, but also have the capability of protecting differential mode voltage, can also inhibit the conduction disturbance brought by a power supply, greatly enhances the safety and reliability of the meter reading device, can meet the surge protection requirement of the meter reading device under various lightning stroke conditions, and the positioning sleeve 54 and the fixing sleeve arranged on the data line joint 5, the connection between the positioning sleeve 54 and the data line plug 9 and the connection between the positioning sleeve 54 and the fixed sleeve can be completed by bare hands, the convenient connection under the condition of no tool bars in the field is solved, meanwhile, the data line plug 9 is prevented from being disconnected from the data line connector 5, and the connection stability in the working process is ensured.
As a further technical scheme, as shown in FIG. 4, the voltage dependent resistor protection circuit comprises a first stage voltage dependent resistor MOV1, the first stage voltage dependent resistor MOV1 is bridged between two poles of the data communication end, two stages of the communication power supply end are connected through a voltage dependent resistor protection circuit, the TVS tube protection circuit is bridged between two poles of the communication power supply end and comprises a second stage first voltage dependent resistor MOV2, a semiconductor discharge tube TSS1 and a second stage second voltage dependent resistor MOV3 which are connected in series, two poles of the data communication end are also connected with the TVS tube protection circuit, the first stage voltage dependent resistor MOV1 and the semiconductor discharge tube TSS1 are respectively connected in parallel and bridged with a common mode inductor L, the voltage dependent resistor protection circuit and the TVS tube protection circuit protect the TX end and the RX end of the data communication end, which belong to a full duplex mode, the common mode inductor L is positioned between the voltage dependent resistor protection circuit and the semiconductor discharge tube protection circuit to play a delay role, thereby ensuring that the voltage dependent resistor protection circuit, meanwhile, the conduction disturbance energy is reduced; according to the instrument parameters of the meter reading device, the first-stage piezoresistor MOV1 is a 20D221K type piezoresistor, the second-stage first piezoresistor MOV2 and the second-stage second piezoresistor MOV3MOV3 are 10D221 type piezoresistors, and the semiconductor discharge tube TSS1 is a P3500SA type discharge tube.
As a further technical solution, in order to prevent the data line plug 9 from loosening during use, the fixing sleeve includes a sleeve nut 52 press-fitted on the connector body 51 and a connecting sleeve 53 in threaded connection with the sleeve nut 52, the positioning groove 531 and the fixing end 532 are located on the connecting sleeve 53, by rotating the sleeve nut 52, the depth of the positioning sleeve 54 in the connecting sleeve 53 is adjusted, and a certain pressure is applied to the end of the data line plug 9, thereby improving the reliability and stability of plugging.
As a further technical scheme, an antenna hole and an antenna groove extending from the lower end of a fast plug collecting terminal 2 to the antenna hole are arranged in a meter box 1, an antenna of an antenna system 3 is connected into an antenna protector 31 and then led out of the meter box 1 through the antenna hole, the antenna protector 31 is fixed on a mounting plate 13, as shown in FIG. 5, the antenna protector 31 is connected onto the antenna through a plurality of GDTs and ESD which are connected in parallel, wherein the GDT is SPA090F type, the ESD is TUSD03FB type, when the interpolar voltage is large enough, the interpolar gap is subjected to discharge breakdown, the response time is generally less than 10ms, the antenna protector 31 is converted from the original insulation state into a conductive state, similar to a short circuit, the high voltage is conducted with the ground, and the voltage kept between the north and the south under the conductive state is low and is generally 20-50V, so that.
As further technical scheme, be fixed with the cable sheath 8 of L shape through flange joint on the outer wall of table case 1 lower extreme, the last port that cable sheath 8 and table case 1 are connected is equipped with sealed the pad for the protection cable entry does not take place the damage, simultaneously, guarantees the airtight environment in the table case 1, has a plurality of cross holes that are used for wearing to establish the cable on the sealed pad, and each cable of being convenient for inserts in the box.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (6)

1. The utility model provides a thunderbolt protection device of long-range collection ware of copying which characterized in that: the meter box comprises a meter box which is used for installing a meter reading device and can form a closed space, a positioning baffle plate for positioning the meter reading device, a mounting plate fixed below the meter box, a quick-plug line collecting end used for connecting the meter reading device with each cable, an antenna system used for remotely interacting the meter reading device, a protection circuit breaker connected with a power supply cable of the meter reading device, a data line connector inserted with an external data line plug to transmit data and a communication protector positioned at the front end of the quick-plug line collecting end at the rear end of the data line connector, wherein the communication protector is electrically connected with the data line connector and is assembled into an integral structure to be installed on the mounting plate, the quick-plug line collecting end and the protection circuit breaker are fixed on the mounting plate, and the antenna system, the protection circuit breaker and the communication protector are electrically connected with the meter reading device through the quick-plug line collecting end, wherein the communication protector comprises a piezoresistor protection circuit and a TVS tube protection, The common mode inductor is connected with the piezoresistor protection circuit and the TVS tube protection circuit;
the data line joint is connected with an external data line plug pin, which comprises a joint body, a fixed sleeve and a positioning sleeve, wherein the fixed sleeve and the positioning sleeve are connected with the joint body, the positioning sleeve is two semicircular cylinders which are buckled and connected through a buckling structure, the end part of the data line plug is limited between the two semicircular cylinders, one end of the positioning sleeve is a positioning end part with a convex step, the free end of the fixed sleeve is a fixed end part with a convex step in an inner hole, the positioning end part and the fixed end part are provided with a fan-shaped slot and a fan-shaped lug which are distributed annularly, the fan-shaped lug of the positioning end part is matched with the fan-shaped slot of the fixed end part, the fixed sleeve is also provided with a positioning groove connected with the fixed end part, an annular elastic sheet, the positioning end part is rotated, the elastic sheet elastically compresses the end surface of the positioning end part, so that the fan-shaped convex block of the positioning end part is seated on the fan-shaped convex block of the fixing end part.
2. The lightning strike protection device of a remote centralized meter reader according to claim 1, characterized in that: the voltage dependent resistor protection circuit comprises a first-stage voltage dependent resistor MOV1, wherein the first-stage voltage dependent resistor MOV1 is connected between two poles of a data communication end in a bridging mode, the TVS tube protection circuit is connected between two poles of a communication power supply end in a bridging mode and comprises a second-stage first voltage dependent resistor MOV2, a semiconductor discharge tube TSS1 and a second-stage second voltage dependent resistor MOV3 which are connected in series, and two poles of the data communication end are further connected with the TVS tube protection circuit.
3. The lightning strike protection device of a remote centralized meter reader according to claim 2, characterized in that: the first-stage piezoresistor MOV1 is a 20D221K type piezoresistor, the second-stage first piezoresistor MOV2 and the second-stage second piezoresistor MOV3MOV3 are 10D221 type piezoresistors, and the semiconductor discharge tube TSS1 is a P3500SA type discharge tube.
4. The lightning strike protection device of a remote centralized meter reader according to claim 1, characterized in that: the fixed sleeve comprises a sleeve nut which is sleeved on the joint body in a pressing mode and a connecting sleeve which is in threaded connection with the sleeve nut, and the positioning groove and the fixed end portion are located on the connecting sleeve.
5. The lightning strike protection device of a remote centralized meter reader according to claim 4, characterized in that: the table incasement is equipped with the antenna hole and by inserting the antenna groove that line concentration end lower extreme extended to the antenna hole soon, outside the table case was drawn forth by the antenna hole behind antenna system's the antenna and the access antenna protector, on the antenna protector was fixed in the mounting panel, antenna protector included a plurality of GDT and ESD that connect in parallel.
6. The lightning strike protection device of a remote centralized meter reader according to claim 5, characterized in that: the utility model discloses a case, table case, meter box, cable sheath, sealed pad, meter box, meter.
CN201911123987.5A 2019-11-15 2019-11-15 Lightning stroke protection device of remote centralized meter reading device Pending CN110718802A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911123987.5A CN110718802A (en) 2019-11-15 2019-11-15 Lightning stroke protection device of remote centralized meter reading device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911123987.5A CN110718802A (en) 2019-11-15 2019-11-15 Lightning stroke protection device of remote centralized meter reading device

Publications (1)

Publication Number Publication Date
CN110718802A true CN110718802A (en) 2020-01-21

Family

ID=69216139

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911123987.5A Pending CN110718802A (en) 2019-11-15 2019-11-15 Lightning stroke protection device of remote centralized meter reading device

Country Status (1)

Country Link
CN (1) CN110718802A (en)

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