CN206489917U - A kind of MOV voltage dependent resistor overvoltage protectors part - Google Patents
A kind of MOV voltage dependent resistor overvoltage protectors part Download PDFInfo
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- CN206489917U CN206489917U CN201720095267.2U CN201720095267U CN206489917U CN 206489917 U CN206489917 U CN 206489917U CN 201720095267 U CN201720095267 U CN 201720095267U CN 206489917 U CN206489917 U CN 206489917U
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- piezo
- fixed plate
- dependent resistor
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Abstract
The utility model discloses a kind of MOV voltage dependent resistor overvoltage protectors part, including insulation tube, the outer surface of the insulation tube is set with insulation crust, the inside of the insulation tube is provided with piezo-resistance, the top of the piezo-resistance is provided with two insulation boards, one of insulation board is connected with piezo-resistance, first insulation sleeve is installed at the top of the insulation tube, the bottom of the insulation tube is provided with the second insulation sleeve, horizontally disposed first fixed plate is bonded with the top of first insulation sleeve, the side of first fixed plate is provided with the second fixed plate being vertically arranged, and first fixed plate and the second fixed plate be formed in one structure, the bottom of the piezo-resistance is provided with rubber blanket, the bottom of the rubber blanket is provided with the first press block, conductive pole is connected with the middle of the bottom of the piezo-resistance, and conductive pole runs through rubber blanket, first press block and the second insulation sleeve.The utility model is rational in infrastructure, compact conformation, is adapted to promote.
Description
Technical field
The utility model is related to overvoltage protecting device technical field, more particularly to a kind of MOV piezo-resistances overvoltage is protected
Protect device.
Background technology
" piezo-resistance " is a kind of resistance device with nonlinear wind vibration, is mainly used in when circuit bears overvoltage
Voltage clamping is carried out, unnecessary electric current is absorbed to protect Sensitive Apparatus, the resistor material of piezoresistor is semiconductor, so
It is a kind of semiconductor resistor.Metal oxide piezo-resistance (MOV, Metal Oxide Varistor), it is wrapped
Containing the ceramic block being made up of Zinc oxide particles with other a small amount of metal oxides or polymer spacer, it is sandwiched between two metal sheets.
Grain can form diode effect with neighbouring oxide intersection, due to there is a large amount of mixed and disorderly particles so that it is equal to a lot of back ofs the body
To connected diode, there was only the converse electrical leakage electric current of very little during low-voltage, when running into high voltage, diode because thermoelectron with
Tunnel-effect and occur reverse collapse, circulate high current.Therefore, the current-voltage characteristic curve of piezo-resistance has height
It is non-linear:Resistance is low when resistance height, high voltage during low-voltage.
Existing overvoltage protection installs inconvenient, and existing overvoltage protection uses conventional, electric-resistance,
Inner body easily loosens, and fault rate is high, therefore, the utility model proposes a kind of MOV voltage dependent resistor overvoltage protectors part, using
To solve the deficiencies in the prior art.
Utility model content
The purpose of this utility model is and the pressure-sensitive electricity of a kind of MOV proposed in order to solve shortcoming present in prior art
Hinder overvoltage protecting device.
To achieve these goals, the utility model employs following technical scheme：
A kind of MOV voltage dependent resistor overvoltage protectors part, including insulation tube, the outer surface of the insulation tube are set with absolutely
Edge shell, the inside of the insulation tube is provided with piezo-resistance, and the top of the piezo-resistance is provided with two insulation boards, wherein one
Individual insulation board is connected with piezo-resistance, is connected with the top of compression spring, the insulation tube and is provided between two insulation boards
First insulation sleeve, the bottom of the insulation tube, which is provided with, to be bonded with level at the top of the second insulation sleeve, first insulation sleeve and sets
The first fixed plate put, the side of first fixed plate is provided with the second fixed plate being vertically arranged, and the first fixed plate and the
Two fixed plates are formed in one structure, and the side of second fixed plate is provided with mounting hole, the crown center of the piezo-resistance
Conducting rod is connected with, and conducting rod runs through insulation board, the first insulation sleeve and the first fixed plate, the top of conducting rod is connected with wiring
Post, the conducting rod outer wrap at the top of the first fixed plate has the 3rd insulation sleeve, and the bottom of the piezo-resistance is provided with rubber
Pad, the bottom of the rubber blanket, which is provided with the middle of the first press block, the bottom of the piezo-resistance, is connected with conductive pole, and conductive pole
Through rubber blanket, the first press block and the second insulation sleeve.
It is preferred that, the lower end of the conductive pole is threaded with clamp nut.
It is preferred that, the second press block is provided between first insulation sleeve and piezo-resistance.
It is preferred that, the bottom of first insulation sleeve is fixed with insulation board.
It is preferred that, the insulation crust is made using silastic material.
It is preferred that, the conducting rod is located at the middle part of compression spring.
It is preferred that, the piezo-resistance uses metal oxide piezo-resistance.
Compared with prior art, the beneficial effects of the utility model are：Pass through setting for the first fixed plate and the second fixed plate
The present apparatus, can be bolted by meter, can be by piezo-resistance by the design of the first press block and the second press block
It is pressed against, places piezo-resistance and loosen, by the design of compression spring, further compress piezo-resistance, the utility model structure
Rationally, compact conformation, is adapted to promote.
Brief description of the drawings
Fig. 1 be the utility model proposes a kind of MOV voltage dependent resistor overvoltage protectors part structural representation；
Fig. 2 be the utility model proposes a kind of MOV voltage dependent resistor overvoltage protectors part in the first fixed plate and second
The side view of fixed plate.
In figure：1 binding post, 2 conducting rods, 3 the 3rd insulation sleeves, 4 compression springs, 5 first insulation sleeves, 6 first fixed plates, 7
Insulation crust, 8 rubber blankets, 9 first press blocks, 10 conductive poles, 11 second insulation sleeves, 12 insulation tubes, 13 piezo-resistances, 14 second
Press block, 15 second fixed plates, 16 insulation boards, 17 mounting holes.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.
Outside reference picture 1-2, a kind of MOV voltage dependent resistor overvoltage protectors part, including insulation tube 12, the insulation tube 12
Portion surface is set with insulation crust 7, and the inside of the insulation tube 12 is provided with piezo-resistance 13, the top of the piezo-resistance 13
Provided with two insulation boards 16, one of insulation board 16 is connected with piezo-resistance 13, and pressure is connected between two insulation boards 16
Contracting spring 4, the top of the insulation tube 12 is provided with the first insulation sleeve 5, and the bottom of the insulation tube 12 is provided with the second insulation
Set 11, the top of first insulation sleeve 5 is bonded with horizontally disposed first fixed plate 6, and the side of first fixed plate 6 is set
There is the second fixed plate 15 being vertically arranged, and the first fixed plate 6 and the second fixed plate 15 are formed in one structure, described second consolidates
The side of fixed board 15 is provided with mounting hole 17, and the crown center of the piezo-resistance 13 is connected with conducting rod 2, and conducting rod 2 runs through
Insulation board 16, the first insulation sleeve 5 and the first fixed plate 6, the top of conducting rod 2 are connected with binding post 1, positioned at the first fixed plate 6
The outer wrap of conducting rod 2 at top has the 3rd insulation sleeve 3, and the bottom of the piezo-resistance 13 is provided with rubber blanket 8, the rubber blanket
8 bottom is provided with the middle of the first press block 9, the bottom of the piezo-resistance 13 and is connected with conductive pole 10, and conductive pole 10 runs through
Rubber blanket 8, the first press block 9 and the second insulation sleeve 11.
In the utility model, the lower end of the conductive pole 10 is threaded with clamp nut, first insulation sleeve 5 and pressure
The second press block 14 is provided between quick resistance 13, the bottom of first insulation sleeve 5 is fixed with insulation board 16, the insulation crust
7 are made using silastic material, and the conducting rod 2 is located at the middle part of compression spring 4, and the piezo-resistance 13 uses metal
The present apparatus, by the design of the first fixed plate 6 and the second fixed plate 15, can be bolted by oxide voltage-sensitive resistance
Firmly, by the design of the first press block 9 and the second press block 14, piezo-resistance 13 can be pressed against, places piezo-resistance 13
Loosen, by the design of compression spring 4, further compress piezo-resistance 13, the utility model is rational in infrastructure, compact conformation, fit
Close and promote.
When in use, the present apparatus is connected in parallel in the circuit of electrical appliance for the utility model, can play protection electrical appliance
Effect, in electrical appliance normal work, the resistance of piezo-resistance 13 is very big, does not work substantially, equivalent to open circuit, when in circuit
When having the high current to flow through, the transient switching of piezo-resistance 13 (ns magnitudes) causes the electric current in circuit all to flow through piezo-resistance 13,
So as to protect electrical appliance.Therefore piezo-resistance is in parallel in circuit.If series connection will result in circuit breaker in circuit
Open a way, so as to protect electrical appliance, by the design of the first fixed plate 6 and the second fixed plate 15, the present apparatus can be led in other words
Cross bolt to fix, by the design of the first press block 9 and the second press block 14, piezo-resistance 13 can be pressed against, placed
Piezo-resistance 13 loosens, by the design of compression spring 4, further compresses piezo-resistance 13.
It is described above, only the utility model preferably embodiment, but protection domain of the present utility model is not
This is confined to, any one skilled in the art is in the technical scope that the utility model is disclosed, according to this practicality
New technical scheme and its utility model design are subject to equivalent substitution or change, should all cover in protection model of the present utility model
Within enclosing.
Claims (7)
1. a kind of MOV voltage dependent resistor overvoltage protectors part, including insulation tube (12), it is characterised in that the insulation tube (12)
Outer surface be set with insulation crust (7), the inside of the insulation tube (12) is provided with piezo-resistance (13), the pressure-sensitive electricity
The top of (13) is hindered provided with two insulation boards (16), one of insulation board (16) is connected with piezo-resistance (13), two absolutely
It is connected between listrium (16) at the top of compression spring (4), the insulation tube (12) and the first insulation sleeve (5) is installed, it is described exhausted
The bottom of edge pipe (12), which is provided with the top of the second insulation sleeve (11), first insulation sleeve (5), is bonded with horizontally disposed
One fixed plate (6), the side of first fixed plate (6) is provided with the second fixed plate (15) being vertically arranged, and the first fixed plate
(6) be formed in one structure with the second fixed plate (15), and the side of second fixed plate (15) is provided with mounting hole (17), described
The crown center of piezo-resistance (13) is connected with conducting rod (2), and conducting rod (2) runs through insulation board (16), the first insulation sleeve (5)
With the first fixed plate (6), the top of conducting rod (2) is connected with binding post (1), the conducting rod at the top of the first fixed plate (6)
(2) outer wrap has the 3rd insulation sleeve (3), and the bottom of the piezo-resistance (13) is provided with rubber blanket (8), the rubber blanket (8)
Bottom be provided with the first press block (9), be connected with conductive pole (10), and conductive pole in the middle of the bottom of the piezo-resistance (13)
(10) rubber blanket (8), the first press block (9) and the second insulation sleeve (11) are run through.
2. a kind of MOV voltage dependent resistor overvoltage protectors part according to claim 1, it is characterised in that the conductive pole
(10) lower end is threaded with clamp nut.
3. a kind of MOV voltage dependent resistor overvoltage protectors part according to claim 1, it is characterised in that described first is exhausted
The second press block (14) is provided between edge set (5) and piezo-resistance (13).
4. a kind of MOV voltage dependent resistor overvoltage protectors part according to claim 1, it is characterised in that described first is exhausted
The bottom of edge set (5) is fixed with insulation board (16).
5. a kind of MOV voltage dependent resistor overvoltage protectors part according to claim 1, it is characterised in that outside the insulation
Shell (7) is made using silastic material.
6. a kind of MOV voltage dependent resistor overvoltage protectors part according to claim 1, it is characterised in that the conducting rod
(2) it is located at the middle part of compression spring (4).
7. a kind of MOV voltage dependent resistor overvoltage protectors part according to claim 1, it is characterised in that the pressure-sensitive electricity
Hinder (13) and use metal oxide piezo-resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720095267.2U CN206489917U (en) | 2017-01-24 | 2017-01-24 | A kind of MOV voltage dependent resistor overvoltage protectors part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720095267.2U CN206489917U (en) | 2017-01-24 | 2017-01-24 | A kind of MOV voltage dependent resistor overvoltage protectors part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206489917U true CN206489917U (en) | 2017-09-12 |
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ID=59767008
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720095267.2U Active CN206489917U (en) | 2017-01-24 | 2017-01-24 | A kind of MOV voltage dependent resistor overvoltage protectors part |
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| CN (1) | CN206489917U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111292907A (en) * | 2020-02-19 | 2020-06-16 | 湖南特诚成套电器有限公司 | Porcelain shell type zinc oxide lightning arrester and using method thereof |
-
2017
- 2017-01-24 CN CN201720095267.2U patent/CN206489917U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111292907A (en) * | 2020-02-19 | 2020-06-16 | 湖南特诚成套电器有限公司 | Porcelain shell type zinc oxide lightning arrester and using method thereof |
| CN111292907B (en) * | 2020-02-19 | 2022-02-11 | 湖南特诚成套电器有限公司 | Porcelain shell type zinc oxide lightning arrester and using method thereof |
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