CN113451915A - High-voltage electric box warning device - Google Patents

High-voltage electric box warning device Download PDF

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Publication number
CN113451915A
CN113451915A CN202110549924.7A CN202110549924A CN113451915A CN 113451915 A CN113451915 A CN 113451915A CN 202110549924 A CN202110549924 A CN 202110549924A CN 113451915 A CN113451915 A CN 113451915A
Authority
CN
China
Prior art keywords
box body
box
warning device
voltage electric
electric
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
CN202110549924.7A
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Chinese (zh)
Inventor
陈晓萌
吕学彬
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.)
State Grid Corp of China SGCC
Xingtai Power Supply Co of State Grid Hebei Electric Power Co Ltd
Linxi Power Supply Co of State Grid Hebei Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
Xingtai Power Supply Co of State Grid Hebei Electric Power Co Ltd
Linxi Power Supply Co of State Grid Hebei Electric Power 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 State Grid Corp of China SGCC, Xingtai Power Supply Co of State Grid Hebei Electric Power Co Ltd, Linxi Power Supply Co of State Grid Hebei Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN202110549924.7A priority Critical patent/CN113451915A/en
Publication of CN113451915A publication Critical patent/CN113451915A/en
Pending legal-status Critical Current

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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/26Casings; Parts thereof or accessories therefor
    • H02B1/46Boxes; Parts thereof or accessories therefor
    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/02Alarms for ensuring the safety of persons

Abstract

The invention discloses a warning device of a high-voltage electric box, which comprises a box body and more than one discharging device; the box body is provided with a window, the discharging device is arranged in the box body and corresponds to the window; the discharging device comprises a storage battery, two discharging wires and a connecting pipe; one ends of the two wires are electrically connected with the storage battery, and the other ends of the two wires are not contacted with each other; the connecting pipe is rolled up by a transparent insulating film; the other ends of the two wires are respectively inserted into the two ends of the connecting pipe. The invention arranges the discharging device which can generate electric arc in the box body, and the electric arc can be seen through the upper window of the box body outside the box body; by means of the danger cognition of human beings on electricity, the electric arc generated in the box body can deter people outside the box body, the warning effect is achieved, the stealing of the stealing people is prevented, and the problem that the high-voltage electric box is lack of a warning device is effectively solved.

Description

High-voltage electric box warning device
Technical Field
The invention belongs to the field of electric power safety equipment, and particularly relates to a warning device for a high-voltage electric box.
Background
The high-voltage electric box is a shell for storing equipment; the high-voltage equipment in the high-voltage box generally has high voltage and can threaten the human body fatally, but the high-voltage equipment in the high-voltage box is confidential and expensive, so even if the high-voltage equipment has extremely high danger, the high-voltage equipment still can be stolen by people continuously.
The high-voltage box internal equipment generally exists in a shell of an integrated or conversion circuit, and when the high-voltage box internal equipment is stolen, the daily life of surrounding residents can be influenced, so that the life is inconvenient; however, when the high-voltage electric box is used, people cannot be stared at the high-voltage electric box all the time, and the stealing cannot be prevented by word warning and use monitoring, so that a warning device is urgently needed to prevent the equipment in the high-voltage electric box from being stolen.
Disclosure of Invention
The invention aims to solve the technical problem of providing a warning device for a high-voltage electric box, and solves the problem that the high-voltage electric box is lack of the warning device.
In order to solve the problems, the invention adopts the following technical scheme:
a warning device of a high-voltage electric box comprises a box body and more than one discharging device; the box body is provided with a window, the discharging device is arranged in the box body and corresponds to the window; the discharging device comprises a storage battery, two discharging wires and a connecting pipe; one ends of the two wires are electrically connected with the storage battery, and the other ends of the two wires are not connected with each other; the connecting pipe is rolled up by a transparent insulating film; the other ends of the two wires are respectively inserted into the two ends of the connecting pipe.
As a further improvement of the invention, the number of windows is the same as the number of discharge devices; the windows are arranged at intervals.
As a further development of the invention, the window is provided with glass.
As a further improvement of the invention, a timing switch is arranged between the storage battery and any electric wire.
As a further improvement of the invention, a loudspeaker is arranged in the box body.
As a further improvement of the invention, the inner top wall of the box body is provided with a fire extinguishing layer.
As a further improvement of the invention, the outer surface of the fire extinguishing layer is provided with a flammable layer.
As a further improvement of the invention, the joints of the box bodies are provided with flame-retardant strips.
As a further improvement of the invention, a smoke alarm is arranged in the box body.
As a further improvement of the invention, the box body is an iron box.
The invention has the following remarkable beneficial effects:
1. the invention relates to a warning device of a high-voltage electric box, which comprises a box body and more than one discharging device, wherein the discharging device comprises a storage battery, two electric wires and a connecting pipe; one ends of the two wires are respectively and electrically connected with the anode or the cathode of the storage battery, and the other ends of the two wires are not contacted with each other and respectively extend into the two ends of the connecting pipe; the storage battery, the two electric wires and the connecting pipe form a loop, under the power-on condition, the other ends of the two electric wires are arranged at intervals, current can directly appear in the connecting pipe in the form of electric arcs, and the connecting pipe is formed by rolling a transparent insulating film, so that the electric arcs can be seen when the electric arcs are generated, but electric shock cannot occur.
The discharging device is arranged in the box body, the discharging device generates electric arc visible to naked eyes, so that people can see the electric arc outside the box body through the window, the people can think that the inside of the box body is unsafe and easily dangerous by utilizing the cognition of the human beings on the electricity, and then the electric arc is far away from the box body when passing, when the stealing people steal, the electric arc generated in the box body is inherently regarded as dangerous, so that the stealing behavior is abandoned, the passerby is also far away from the box body to walk while the stealing people are effectively prevented from stealing cables, and other dangerous situations are prevented; the problem that the high-voltage electric box is lack of a warning device is effectively solved.
2. The windows with the same number as the discharging devices are arranged at intervals, so that thieves can see that the electric arcs are distributed in the box body; the number of electric arcs is increased by hiding a part of the electric arcs, so that a thief feels a danger when seeing the electric arcs, and the stealing behavior is abandoned.
3. The window department is provided with glass, and glass's setting can play the isolation effect under the condition that does not influence seeing electric arc, prevents that someone from stretching into the box through the window because of the curiosity to electric arc, produces the dangerous emergence of electrocuteeing.
4. Because human beings are dangerous to the cognition of electric arc, if the electric arc is produced in the box body all the time, people nearby can produce unsafe feeling and further complain, a timing switch is installed at the battery, the discharge time of the battery is controlled through the timing switch, the time period with intensive personnel is avoided, and the electric arc is produced only in the time period easy to steal by discharging.
5. Because the current in the voltage box is overlarge and the current sound is easy to generate, the loudspeaker is arranged in the box body, the current sound in the box body is amplified through the loudspeaker, so that the stealing personnel can easily hear the sound generated by the current, the dangerous impression of the stealing personnel in the box body is deepened by matching with the generation of electric arcs, and the stealing behavior is abandoned.
6. In order to prevent the fire hazard caused by electric leakage in the box body, the top in the box body is provided with the fire extinguishing layer, and when the fire hazard occurs in the box body, the fire extinguishing medium in the fire extinguishing layer can be released to prevent the fire hazard in the box body from expanding.
7. In order to enable the fire extinguishing layer to act as soon as possible, the outer surface of the fire extinguishing layer is provided with the inflammable layer, the inflammable layer is directly ignited when a fire disaster occurs in the box body, the fire extinguishing layer wrapped by the inflammable layer releases a fire extinguishing medium as fast as possible, and the fire disaster generated by electric leakage in the box body is extinguished.
8. In order to stop the fire in the box body as soon as possible, the fire retardant strips are arranged at the joints of the box body, and gaps generated at the joints of the box body can be filled by the fire retardant strips, so that the external air is prevented from entering the box body, and the fire behavior is promoted; in addition, the flame-retardant strips are made of flame-retardant materials, and the flame-retardant strips can also prevent fire from spreading to the outside of the box body.
9. In order to remind surrounding passers-by, a smoke alarm is arranged in the box body, and the smoke alarm gives an alarm after sensing smoke generated by a fire disaster to remind passers-by outside the box body of having an emergency and keeping away from the box body.
10. The box is the iron box, and the box that the box is iron can not burn through when the conflagration takes place to the iron box is airtight space, and the setting of the fire-retardant strip of cooperation can not obtain the replenishment of oxygen after the conflagration takes place in the air that makes in the box, and then extinguishes automatically.
Drawings
Fig. 1 is a schematic three-dimensional structure diagram of a warning device of a high-voltage electric box in embodiment 1 of the invention;
fig. 2 is a schematic structural view of a discharge device in the warning device of the high-voltage electric box in embodiment 1 of the invention;
FIG. 3 is a schematic view of a three-dimensional structure of a warning device of a high-voltage electric box in embodiment 2 of the invention
Fig. 4 is a schematic structural view of a discharge device in a warning device of a high-voltage electric box in embodiment 2 of the invention;
fig. 5 is a schematic left-view sectional structure diagram of a box body in a warning device of a high-voltage electric box in embodiment 2 of the invention.
In the attached drawing, 1-box, 2-window, 3-accumulator, 4-wire, 5-connecting pipe, 6-timing switch, 7-fire extinguishing layer, 8-inflammable layer, 9-flame-retardant strip, 10-smoke alarm, 11-loudspeaker.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the application, its application, or uses. 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 application.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the case of not making a reverse description, these directional terms do not indicate and imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the scope of the present application; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of protection of the present application is not to be construed as being limited.
Example 1
As shown in fig. 1 and 2, a warning device of a high-voltage electric box comprises a box body 1 and more than one discharging device; the box body 1 is provided with a window 2, the discharging device is arranged in the box body 1, and the discharging device is arranged corresponding to the window 2; the discharging device comprises a storage battery 3, two discharging wires 4 and a connecting pipe 5; one ends of the two electric wires 4 are electrically connected with the storage battery 3, and the other ends of the two electric wires 4 are not contacted with each other; the connection pipe 5 is rolled up by a transparent insulating film; the other ends of the two wires 4 are respectively inserted into the two ends of the connecting pipe 5.
The box body 1 is an outer shell for placing high-voltage electric equipment, nine discharging devices are arranged in the box body 1, the nine discharging devices are uniformly arranged on the inner wall of the box body 1, and a window 2 corresponding to the nine discharging devices is formed in the box body 1; the discharging device comprises a storage battery 3, two electric wires 4 and a connecting pipe 5, one end of one electric wire 4 is electrically connected with the positive electrode of the storage battery 3, one end of the other electric wire 4 is electrically connected with the negative electrode of the storage battery 3, one ends of the two electric wires 4 far away from the storage battery 3 are separated by a certain distance, and one ends of the two electric wires 4 far away from the storage battery 3 are respectively inserted into two ends of the connecting pipe 5; the connection pipe 5 is formed by winding a transparent insulating film, and when the electric current is applied, an arc is generated at one end of the two electric wires 4 away from the battery 3 due to the electric current and the distance therebetween, but the generation of the arc is seen from the outside of the case 1 due to the transparent and insulating characteristics of the connection pipe 5, but the electric leakage does not occur.
According to the invention, the discharging device for generating the electric arc is arranged in the box body 1, the electric arc which can be seen by naked eyes is generated by the discharging device, and the discharging device is arranged corresponding to the window 2, so that a person outside the box body 1 can directly see the generation of the electric arc, and the person outside the box body 1 is reminded that the inside of the box body 1 is unsafe by utilizing the danger cognition of the person on electricity, and further the person outside the box body 1 is forced to be far away from the box body 1; when a thief prepares to steal, the thief unconsciously thinks that the box body 1 is electrically leaked when seeing the generation of the electric arc, thinks that equipment in the box body 1 is continuously stolen and threatens the thief, and further gives up the stealing, namely, the warning effect is achieved, the stealing behavior is prevented, and the problem that the high-voltage electric box is lack of the warning device is effectively solved.
Example 2
As shown in fig. 3, 4 and 5, the present embodiment relates to a high-voltage electric box warning device, which has substantially the same structure as that of embodiment 1, and is further optimized based on embodiment 1, wherein the number of windows 2 is the same as that of discharge devices, and the windows 2 are arranged at intervals.
In order to increase the warning performance of the generation of the electric arcs, the number of the windows 2 is the same as that of the discharging devices, the number of the windows 2 is nine, and the nine windows 2 are arranged at intervals, so that a person outside the box body 1 can see the electric arcs intermittently, the electric arcs can be seen to be spread in the box body 1, the warning performance is improved by increasing the number of the electric arcs, and a thief is forced to see the electric arcs and directly think that the electric arcs are unsafe in the box body 1, and the stealing behavior is stopped.
As a further optimization of the warning device of the high-voltage electric box, glass is arranged at the window 2.
Because the discharging device is directly arranged corresponding to the window 2, the glass is arranged at the window 2 to prevent a person outside the box body 1 from touching the electric arc due to curiosity; by utilizing the characteristic of transparency of glass, the contact of people outside the box body 1 to the discharge device is prevented, and the condition that the people outside the box body 1 see the electric arc is not influenced.
As a further optimization of the high-voltage electric box warning device, a timing switch 6 is arranged between the storage battery 3 and any electric wire 4.
Because the high-voltage electric box is generally arranged on the roadside, and the long-time emission of electric arcs can cause panic of surrounding people and easily cause complaints, a timing switch 6 is arranged between the storage battery 3 and one electric wire 4, and the time period for generating the electric arcs is controlled by the timing switch 6; when people are dense, the radiation of the electric arc is stopped, and at night or in a time period easy to steal, the electric arc starts to be radiated to generate deterrence on the outside of the box body 1.
As a further optimization of the warning device of the high-voltage electric box, a loudspeaker 11 is arranged in the box body 1.
Because high-voltage current generally passes through the high-voltage electric box, and current sound can appear due to overlarge current of the high-voltage current, a loudspeaker 11 is placed in the box body 1 to amplify the current sound in the box body 1, and the loudspeaker 11 is a horn; the interaction of the current sound and the electric arc increases the deterrence force, and the thieves are forced to give up the stealing behavior.
As a further optimization of the warning device of the high-voltage electric box, the top wall in the box body 1 is provided with a fire extinguishing layer 7.
Because the current is too big in the high-tension electricity case, so very easily cause the conflagration after taking place the electric leakage, so roof is provided with fire extinguishing layer 7 in box 1, and fire extinguishing layer 7 is the dry powder and constitutes, and fire extinguishing layer 7 ties roof in box 1 at ordinary times, and when the conflagration breaing out, flame is direct to be tied and blows, and fire extinguishing layer 7 loses can put out flame in the effect of gravity whereabouts downwards after tying.
As a further optimization of the high-voltage electric box warning device, the outer surface of the fire extinguishing layer 7 is provided with the inflammable layer 8.
In order to enable the fire extinguishing layer 7 to have a fire extinguishing effect as soon as possible, the outer surface of the fire extinguishing layer 7 is provided with an inflammable layer 8, and the inflammable layer 8 restrains the fire extinguishing layer 7; the combustible layer 8 is made of combustible materials, after a fire disaster happens, the combustible layer 8 burns quickly to lose the constraint on the fire extinguishing layer 7, and the fire extinguishing layer 7 directly falls on flame to extinguish the fire, so that the fire is prevented from spreading.
As a further optimization of the warning device of the high-voltage electric box, the fire-retardant strips 9 are arranged at the joints of the box body 1.
Because the junction can have the gap when the preparation of high-tension box, there is flame to scurry along the gap easily after the conflagration breaing out, cause the intensity of a fire to stretch, so fire-retardant strip 9 has all been laid in the 1 junction of box, the setting of fire-retardant strip 9 can prevent on the one hand that the intensity of a fire from stretching to outside box 1, on the other hand also can prevent in the outside air gets into box 1, foster the increase of intensity of a fire, after losing the replenishment of outside air, the oxygen in the box 1 burns the back flame and can extinguish gradually.
As a further optimization of the warning device of the high-voltage electric box, a smoke alarm 10 is arranged in the box body 1.
The smoke alarm 10 arranged on the inner wall of the box body 1 can alarm after smoke is generated in the box body 1 through combustion, surrounding personnel are reminded of fire, and therefore fire fighting is organized as soon as possible, and the fire intensity is prevented from increasing.
As a further optimization of the warning device of the high-voltage electric box, the box body 1 is an iron box.
The box 1 is the case that iron made, and the box 1 of iron can not be burnt by flame and wear to iron box 1 is airtight space, and the setting of cooperation fire-retardant strip 9 can be in the air that makes in the box 1 can not obtain the replenishment of oxygen after the conflagration takes place, and then extinguishes automatically.

Claims (10)

1. The utility model provides a high-tension electricity case warning device which characterized in that: comprises a box body (1) and more than one discharging device; the box body (1) is provided with a window (2), the discharge device is arranged in the box body (1), and the discharge device is arranged corresponding to the window (2); the discharging device comprises a storage battery (3), two discharging wires (4) and a connecting pipe (5); one ends of the two electric wires (4) are electrically connected with the storage battery (3), and the other ends of the two electric wires (4) are not contacted with each other; the connecting pipe (5) is rolled by a transparent insulating film; the other ends of the two electric wires (4) are respectively inserted into the two ends of the connecting pipe (5).
2. The high-voltage electric box warning device according to claim 1, characterized in that: the number of the windows (2) is the same as that of the discharge devices; the windows (2) are arranged at intervals.
3. The high-voltage electric box warning device according to claim 2, characterized in that: the window (2) is provided with glass.
4. The high-voltage electric box warning device according to claim 3, characterized in that: and a timing switch (6) is arranged between the storage battery (3) and any one of the electric wires (4).
5. The high-voltage electric box warning device according to claim 4, characterized in that: a loudspeaker (11) is arranged in the box body (1).
6. The high voltage electric box warning device according to claim 5, characterized in that: the inner top wall of the box body (1) is provided with a fire extinguishing layer (7).
7. The high voltage electric box warning device according to claim 6, characterized in that: and the outer surface of the fire extinguishing layer (7) is provided with a combustible layer (8).
8. The high voltage electric box warning device according to claim 7, characterized in that: the junction of the box body (1) is provided with a flame-retardant strip (9).
9. The high voltage electric box warning device according to claim 8, wherein: a smoke alarm (10) is arranged in the box body (1).
10. The high voltage electric box warning device according to claim 9, characterized in that: the box body (1) is an iron box.
CN202110549924.7A 2021-05-20 2021-05-20 High-voltage electric box warning device Pending CN113451915A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110549924.7A CN113451915A (en) 2021-05-20 2021-05-20 High-voltage electric box warning device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110549924.7A CN113451915A (en) 2021-05-20 2021-05-20 High-voltage electric box warning device

Publications (1)

Publication Number Publication Date
CN113451915A true CN113451915A (en) 2021-09-28

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ID=77809887

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110549924.7A Pending CN113451915A (en) 2021-05-20 2021-05-20 High-voltage electric box warning device

Country Status (1)

Country Link
CN (1) CN113451915A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2145360Y (en) * 1992-08-31 1993-11-03 广东省公安科学技术研究所实验工厂 Synchronous flash electric hitting apparatus
CN203690258U (en) * 2013-12-31 2014-07-02 戴建国 Ceramic composite metal lamp
CN106440945A (en) * 2016-12-07 2017-02-22 中国人民解放军总参谋部第六十研究所 Electric shock shield surface discharge method
CN206161709U (en) * 2016-11-22 2017-05-10 佛山电力设计院有限公司 A warning electric energy meter box that can put out a fire for distribution network resident end
CN109029117A (en) * 2018-10-01 2018-12-18 袁炜澎 A kind of multi-functional attacking and defending shield
CN209823339U (en) * 2019-06-17 2019-12-20 杭州良展电子有限公司 Flame-retardant wire harness box

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2145360Y (en) * 1992-08-31 1993-11-03 广东省公安科学技术研究所实验工厂 Synchronous flash electric hitting apparatus
CN203690258U (en) * 2013-12-31 2014-07-02 戴建国 Ceramic composite metal lamp
CN206161709U (en) * 2016-11-22 2017-05-10 佛山电力设计院有限公司 A warning electric energy meter box that can put out a fire for distribution network resident end
CN106440945A (en) * 2016-12-07 2017-02-22 中国人民解放军总参谋部第六十研究所 Electric shock shield surface discharge method
CN109029117A (en) * 2018-10-01 2018-12-18 袁炜澎 A kind of multi-functional attacking and defending shield
CN209823339U (en) * 2019-06-17 2019-12-20 杭州良展电子有限公司 Flame-retardant wire harness box

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Application publication date: 20210928

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