CN208904651U - Draw thunder protective device in open air - Google Patents
Draw thunder protective device in open air Download PDFInfo
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- CN208904651U CN208904651U CN201821806152.0U CN201821806152U CN208904651U CN 208904651 U CN208904651 U CN 208904651U CN 201821806152 U CN201821806152 U CN 201821806152U CN 208904651 U CN208904651 U CN 208904651U
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- Prior art keywords
- thunder
- protective device
- encapsulating housing
- cavity
- open air
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- 230000001681 protective effect Effects 0.000 title claims abstract description 37
- 238000007789 sealing Methods 0.000 claims abstract description 24
- 230000005611 electricity Effects 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 239000000741 silica gel Substances 0.000 claims description 4
- 229910002027 silica gel Inorganic materials 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 208000025274 Lightning injury Diseases 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 6
- 230000003628 erosive effect Effects 0.000 abstract description 5
- 230000006698 induction Effects 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229960001296 zinc oxide Drugs 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
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- Thermistors And Varistors (AREA)
Abstract
The utility model relates to a kind of open airs to draw thunder protective device; circuit is protected including the encapsulating housing with inner cavity and the thunder that draws being built in the encapsulating housing; the both ends of the encapsulating housing are respectively arranged with and first connection terminal and second connection end for drawing thunder protection circuit connection; sealing shroud is socketed with outside the encapsulating housing, the sealing shroud is used for waterproof.The open air draws thunder protective device and protects circuit that the electrostatic leakage scale moment of device of outdoor electrical equipment is adjusted to the range that electrical equipment power supply can be born by drawing thunder, to avoid electrical equipment when recruiting lightning induction because moment lightning stroke effect damages；While the sealing shroud by taking over control water in encapsulating housing housing; it avoids outdoor rain erosion damage from drawing the electronic component in thunder protection circuit to cause outdoor thunder protective device of drawing to the shielding failure of device of outdoor electrical equipment, improves the service life that thunder protective device is drawn in open air.
Description
Technical field
The utility model relates to arrester technical fields, and in particular, to thunder protective device is drawn in a kind of open air.
Background technique
Outdoor electrical equipment, which frequently suffers from lightning stroke, which causes power supply to burn, causes electrical equipment to be damaged；Although the prior art
In lightning arrester it is varied, but from the lightning arrester for being installed on optoelectronic device, design type is less, and lightning protection effect is not
It is good.
Generally using current insurance silk or breaker as overcurrent protection in the electrical equipment of the prior art, without setting
Lightning protection system is set to be used to prevent surge or lightning stroke, and some electrical equipments are typically mounted at outdoor, are easily struck by lightning；It causes
Replacement failure electrical equipment cost is significantly increased, and cannot meet electrical equipment well and have declared service life.
Meanwhile though existing power supply has the protection circuit of part, often when thunder and lightning is when neighbouring generate, during which produced by
Electrostatic i.e. power supply may be burnt, be damaged so as to cause electrical equipment；It is highly desirable will be struck by lightning greatly present in electrostatic into
Row is released, and then device of outdoor electrical equipment is avoided to occur the loss of electrical equipment large area failure after a thunderstorm.
As Intellectual Property in China protection office discloses a kind of utility model of structure for installing lightning arrester on April 15th, 2015
Patent, notification number CN204271627U, the structure for installing lightning arrester include encapsulating housing, are provided with and are used in encapsulating housing
Encapsulate cavity one, cavity two and the cavity three of lightning circuit；Two end edges of encapsulating housing are respectively arranged with pin one and pin two；
Lightning circuit includes forming the varistor group, varistor and the current-limiting inductance that are sequentially connected in series, varistor group by copper plate
Including forming at least two varistors successively in parallel by copper plate；Cavity one is for placing spring one and varistor
Group；Cavity two is for placing spring two and varistor；Cavity three is for placing spring three and current-limiting inductance；Lightning circuit passes through
Copper plate is connected between pin one and pin two.The structure for installing lightning arrester can solve above-mentioned problem, but the arrester
It can make the electricity inside arrester in the readily permeable encapsulating housing into arrester of rainwater by the erosion of rainwater for outdoor
Sub- component damage allows the arrester to lose to device of outdoor electrical equipment protective effect.
Therefore, a kind of open air need to be provided and draw thunder protective device, so as to solve the deficiencies in the prior art.
Utility model content
In order to overcome the deficiencies of the prior art, the utility model provides, and thunder protective device is drawn in a kind of open air, which draws
Thunder protective device is set in use silica gel sealing set socket draws in thunder protective device, so that drawing thunder protective device with waterproof
Function avoids erosion of the outdoor rainwater to thunder protective device is drawn, and improves the service life that thunder protective device is drawn in open air.
The technical solution of the utility model is as follows:
Thunder protective device is drawn in a kind of open air, including the encapsulating housing with inner cavity and is built in drawing in the encapsulating housing
Thunder protect circuit, the both ends of the encapsulating housing be respectively arranged with it is described draw thunder protection circuit connection the first connection terminal and
Second connection end；Sealing shroud is socketed with outside the encapsulating housing, the sealing shroud is used for waterproof.
Preferably, the cavity for accommodating the encapsulating housing is provided on the sealing shroud, the outer surface of the sealing shroud is set
It is equipped with the rack gear in worm screw shape.Wherein, the sealing shroud is silica gel sealing set.
Preferably, the thunder protection circuit that draws includes the lightning protection resistor assembly and current limiting component being sequentially connected in series, the lightning protection
Resistor assembly is for energy of releasing.The lightning protection resistor assembly includes two lightning protection varistors being connected in parallel；The current limliting
Component is used to limit electric current, the voltage for occurring unusual pressure after the lightning protection resistor assembly is released, and the current limiting component includes series connection
The third varistor and current-limiting inductance of connection.
Preferably, the inductance of the current limliting electricity L is preferably the inductance of 20 μ H 8A.
Preferably, the inner cavity of the encapsulating housing includes the first cavity, the second cavity and third cavity, the lightning protection resistance
Component is set in first cavity, and the third varistor is set in second cavity, and the current-limiting inductance is set
It is placed in the third cavity；The lightning protection resistor assembly and the current limiting component are connected in series by contact chip, described anti-
Thunder resistor assembly also passes through contact chip and connect with first connection terminal, and the current-limiting inductance also passes through contact chip and described the
The connection of two connection terminals.
Preferably, the contact chip is U-shaped contact chip, and the material of the contact chip is copper.
The utility model has the following beneficial effects: compared with prior art, which draws thunder protective device by drawing thunder protection
The electrostatic leakage scale moment of device of outdoor electrical equipment is adjusted to the range that electrical equipment power supply can be born by circuit, to avoid electricity
Device equipment is when recruiting lightning induction because moment lightning stroke effect damages；While the sealing by taking over control water in encapsulating housing housing
Set avoids outdoor rain erosion damage from drawing the electronic component in thunder protection circuit to cause open air to draw thunder protective device to family
The shielding failure of outer electrical equipment improves the service life that thunder protective device is drawn in open air.
Detailed description of the invention:
Fig. 1 is the schematic perspective view that thunder protective device is drawn in open air described in the utility model.
Fig. 2 is the cross-sectional view that thunder protective device is drawn in open air described in the utility model.
Fig. 3 is the structural schematic diagram that thunder protective device component is drawn in open air described in the utility model.
Fig. 4 is the circuit frame figure that open air described in the utility model draws that thunder protective device draws thunder protection circuit.
Specific embodiment
In order to make the purpose of utility model of the utility model, technical solution and technical effect are more clearly understood, tie below
Specific embodiment is closed to be described further the utility model.It should be understood that specific embodiment described herein, be only used for
It explains the utility model, is not used to limit the utility model.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side " and similar statement for illustrative purposes only, are not meant to be the only embodiment.
Unless otherwise defined, all technical and scientific terms used herein are led with the technology for belonging to the utility model
The normally understood meaning of the technical staff in domain is identical.Terminology used in the description of the utility model herein only be
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term " and or " used herein packet
Include any and all combinations of one or more related listed items.
Referring to Fig.1 and 2, thunder protective device 10 is drawn in the open air of the utility model, including the encapsulating housing with inner cavity
100 protect circuit 200 with the thunder that draws being built in the encapsulating housing, are socketed with sealing shroud 300 outside the encapsulating housing 100.
Referring to figure 2., the both ends of the encapsulating housing 100, which are respectively arranged with, draws what thunder protection circuit 200 was connect with described
First connection terminal 110 and second connection end 120, the inner cavity of the encapsulating housing 100 include the first cavity 130, the second chamber
Body and 140 third cavitys 150.Specific in the present embodiment, the encapsulating housing 100 is to make with fireproof plastic material
's.
Referring to figure 4., the thunder protection circuit 200 that draws includes the lightning protection resistor assembly 210 and current limiting component being sequentially connected in series
220, for the lightning protection resistor assembly 210 for energy of releasing, the lightning protection resistor assembly 210 includes two lightning protection being connected in parallel
The first varistor R1 and the second varistor R2.Specific in the present embodiment, the lightning protection resistor assembly 210 is set to institute
It states in the first cavity 130.The first varistor R1 and the second varistor R2 is preferably 34S821K model or compatibility
The varistor of other models of its function.
Referring to figure 4., there is unusual pressure for limiting after the lightning protection resistor assembly 210 is released in the current limiting component 220
Electric current, voltage, the current limiting component 220 include be connected in series third varistor R3 and current-limiting inductance L.Specific to this reality
It applies in example, the third varistor R3 is set in second cavity 140, and the current-limiting inductance L is set to the third
In cavity 150.Third varistor R3 is preferably the varistor of 34D821K model or compatible other models of its function, described
The inductance of current-limiting inductance L is preferably the inductance of 20 μ H 8A.
Referring to figure 2. and Fig. 3, in the encapsulating housing 100, the lightning protection resistor assembly 210 and the current limiting component
220 are connected in series by contact chip 400, and the lightning protection resistor assembly 210 also passes through contact chip 400 and first connecting pin
Son 110 connects, and the current-limiting inductance L also passes through contact chip 400 and connect with second connection end 120.It is with the direction of Fig. 2
The reference direction of view is provided with the first spring 151 on third cavity 150 described in the right of the current-limiting inductance L, described
One end of first spring 151 is abutted with the inner wall of the third cavity 150, first spring 151 of the other end with it is described
The current-limiting inductance L is fixedly installed in the third cavity 150 by current-limiting inductance L outside wall surface abutting；Positioned at the third pressure
Be provided with second spring 141 on second cavity 140 described in the right of quick resistance R3, one end of the second spring 141 with it is described
The inner wall of second cavity 140 abuts, and the second spring 141 of the other end is abutted with the third varistor R3 outside wall surface
The third varistor R3 is fixedly installed in second cavity 140；Positioned at the left of the lightning protection resistor assembly 210
Third spring 131 is provided on first cavity 130, one end of the third spring 131 is interior with first cavity 130
Wall surface abuts, and the third spring 131 of the other end is abutted with 210 outside wall surface of lightning protection resistor assembly by the lightning protection resistance
Component 210 is fixedly installed in first cavity 130.Specific in the present embodiment, the contact chip 400 is preferably U-shaped copper
Contact chip.The design of first spring 151, second spring 141 and third spring 131 is mainly used for drawing thunder protection electricity for described
Electronic component in road 200 is fixed in the inner cavity of the encapsulating housing, and electronic component is avoided to damage because of shaking
The electronic component drawn in thunder protection circuit 200.
Referring to figure 2., the working principle of thunder protective device is drawn in the open air is: the first connection terminal 110 and the second connection
It is on the ground that terminal is used to be respectively connected to the end L of device of outdoor electrical equipment, N, when lightning stroke electrostatic generates greatly, be connected in parallel first
Varistor R1 and the second varistor R2 can have an effect energy of releasing, while concatenated third varistor R3 and current limliting electricity
Sense LR also absorbs energy, and the voltage and current limit generated so as to unusual pressure during lightning protection resistor assembly 210 is released exists
700V~800V and 7.5A~9A；In the very short time that lightning stroke voltage generates (only several milliseconds), general Switching Power Supply is equal
It can keep out, through testing by the impact tolerance pressure of 21 15KV 7.5KA, thunder protective device is drawn in the open air of the utility model
Still it works normally.When electrical equipment outdoors by thunder device when by open air draw Current Voltage pressure of the thunder protective device by lightning stroke
Within the scope of being down to electrical equipment power supply and can bearing, electrical equipment is avoided to be damaged when recruiting lightning induction.
The varistor wherein used is votage limit type protection device, and the working principle of varistor is: not having pulse voltage
Shi Chengxian high-impedance state, once response impulse voltage, is restricted to certain value for voltage immediately, impedance then sports the shape of low-resistance
State.The response time of varistor is quickly；Varistor used in arrester requires it with excellent energy resistance characteristics,
And energy resistance characteristics are mainly retouched with rated lightning impulse electric current, maximum lightning impulse current and energy tolerance three norms
State, these characteristics and the surface area of varistor in relation to and element radiating condition it is related.The varistor of same specification,
Since the manufacturing process of different manufacturers, composition of raw materials are different, energy capability can differ greatly；Generally it is using more
Zinc-oxide piezoresistor.
Referring to figure 2., the sealing shroud 300 is used for waterproof, is provided on the sealing shroud 300 and accommodates the encapsulating housing
100 cavity 310, the outer surface of the sealing shroud 300 are provided with the rack gear 320 in worm screw shape.In the present embodiment, described
Sealing shroud 310 is silica gel sealing set.
Draw thunder protective device and protect circuit by the electrostatic leakage of device of outdoor electrical equipment by drawing thunder in the open air of the utility model
Scale moment is adjusted to the range that electrical equipment power supply can be born, to avoid electrical equipment when recruiting lightning induction because of moment thunder
The effect of hitting damages；Simultaneously by taking over control the sealing shroud of water in encapsulating housing housing, outdoor rain erosion damage is avoided to draw thunder
Electronic component in protection circuit improves family to cause outdoor thunder protective device of drawing to the shielding failure of device of outdoor electrical equipment
Draw the service life of thunder protective device outside.
It, cannot the above content is specific preferred embodiment further detailed description of the utility model is combined
Assert that the specific implementation of the utility model is only limited to these instructions.For the ordinary skill of the utility model technical field
For personnel, without departing from the concept of the premise utility, architectural form cans be flexible and changeable, and can be produced with subseries
Product.Several simple deduction or replace are only made, it is true by the claims submitted all to shall be regarded as belonging to the utility model
Fixed scope of patent protection.
Claims (7)
1. thunder protective device is drawn in a kind of open air, including the encapsulating housing with inner cavity and it is built in the encapsulating housing and draws thunder
Circuit is protected, the both ends of the encapsulating housing are respectively arranged with and first connection terminal and for drawing thunder protection circuit connection
Two connection terminals, which is characterized in that
Sealing shroud is socketed with outside the encapsulating housing, the sealing shroud is used for waterproof.
2. thunder protective device is drawn in open air according to claim 1, which is characterized in that be provided on the sealing shroud and accommodate institute
The cavity of encapsulating housing is stated, the outer surface of the sealing shroud is provided with the rack gear in worm screw shape.
3. thunder protective device is drawn in open air according to claim 1 or 2, which is characterized in that the sealing shroud is silica gel sealing
Set.
4. thunder protective device is drawn in open air according to claim 1, which is characterized in that the thunder protection circuit that draws includes successively
Concatenated lightning protection resistor assembly and current limiting component；
The lightning protection resistor assembly is for energy of releasing；The lightning protection resistor assembly includes two pressure-sensitive electricity of the lightning protection being connected in parallel
Resistance；
The current limiting component is used to limit electric current, the voltage for occurring unusual pressure after the lightning protection resistor assembly is released, the current limliting
Component includes the third varistor being connected in series and current-limiting inductance.
5. thunder protective device is drawn in open air according to claim 4, which is characterized in that the voltage of current limiting component limitation is
The electric current of 700V~800V, the current limiting component limitation are 7.5A~9A.
6. thunder protective device is drawn in open air according to claim 4, which is characterized in that the inner cavity of the encapsulating housing includes the
One cavity, the second cavity and third cavity, the lightning protection resistor assembly are set in first cavity, the pressure-sensitive electricity of third
Resistance is set in second cavity, and the current-limiting inductance is set in the third cavity；The lightning protection resistor assembly and institute
Stating current limiting component is connected in series by contact chip, and the lightning protection resistor assembly also passes through contact chip and first connection terminal
Connection, the current-limiting inductance also pass through contact chip and connect with second connection end.
7. thunder protective device is drawn in open air according to claim 6, which is characterized in that the contact chip is U-shaped contact chip,
The material of the contact chip is copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821806152.0U CN208904651U (en) | 2018-10-31 | 2018-10-31 | Draw thunder protective device in open air |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821806152.0U CN208904651U (en) | 2018-10-31 | 2018-10-31 | Draw thunder protective device in open air |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208904651U true CN208904651U (en) | 2019-05-24 |
Family
ID=66577473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821806152.0U Active CN208904651U (en) | 2018-10-31 | 2018-10-31 | Draw thunder protective device in open air |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208904651U (en) |
-
2018
- 2018-10-31 CN CN201821806152.0U patent/CN208904651U/en active Active
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