CN206790090U - A kind of fire-proof and explosion-proof lightning protection module - Google Patents
A kind of fire-proof and explosion-proof lightning protection module Download PDFInfo
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- CN206790090U CN206790090U CN201720627797.7U CN201720627797U CN206790090U CN 206790090 U CN206790090 U CN 206790090U CN 201720627797 U CN201720627797 U CN 201720627797U CN 206790090 U CN206790090 U CN 206790090U
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Abstract
It the utility model is related to a kind of fire-proof and explosion-proof lightning protection module, including shell, inner cover, the first overcoat, the second overcoat, piezo-resistance component and fuse；Shell, the first overcoat, inner cover and the second overcoat are set gradually, and shell is provided with the first passage, and inner cover is provided with the second passage；Fuse is electrically connected with piezo-resistance component, and fuse and piezo-resistance component are arranged in the second overcoat.The beneficial effects of the utility model are：Coordinated using shell, inner cover, the first overcoat, the second overcoat, piezo-resistance component and fuse, when piezo-resistance is by surge impact, temperature rises, internal gas expands to spread to top through hole, and now smart temperature fuse just can more directly feel the change of temperature, and gas is in diffusion process also by the resistance of fire protection flame retarding thing, pass through the buffering of two layers of overcoat, brisance will be reduced, and plus fire proofing material is filled with, safe effect is good.
Description
Technical field
Home circuit technical field is the utility model is related to, specially a kind of fire-proof and explosion-proof lightning protection module.
Background technology
Household electrical appliance are all single phase power supplies, mostly only in a phase line L and neutral conductor N indirect piezoresistor in present situation
As overvoltage protection element, this protected mode is referred to as cross-protection, also referred to as differential mode protected mode.Only differential mode is not
No more.Power surge simultaneously not only comes from thunderbolt, and power supply wave can be all produced when the big load of short trouble, switching occurs in power system
Gush, power network stretches a thousand li, and whether thunderbolt or line surge odds are all very high.When a distant place is there occurs being struck by lightning, thunder
Hit surge to transmit by the power network light velocity, decay by transformer station etc., to the high pressure that may still have during each family more than kilovolt, though
The right time is very short, is also enough the semiconductor devices damaged in the equipment such as household electrical appliance and IT power supplys.It is this by phase line L, in
Line forms longitudinal overvoltage to the voltage of line transmission over the ground, it is necessary to this longitudinal Overvoltage suppressing is gone down, to prevent electricity
The insulation of sub-circuit is destroyed, and this protection is referred to as vertical protection, and also referred to as common mode is protected.The impedance of each line over the ground is not
Unanimously, neutral conductor N and ground wire are Low ESR under normal circumstances, therefore, may there is higher transverse direction between phase line L and neutral conductor N
Overvoltage；When the action of longitudinal overvoltage protection device is inconsistent, higher transverse over voltage can be caused between each line.Therefore, it is right
For household electrical appliance, best pattern is protected using full mould, i.e. common mode protection plus differential mode protection.The side of this kind of full mould protection
Method, realized usually using piezo-resistance.
The shortcomings that piezo-resistance is easy to aging, can cause short circuit when in most cases P-N junction is overloaded and can not return back to
Normal condition, the diode element under the repeated multiple times effect of surge in piezo-resistance is breakdown, the low-resistance line of resistive element
Propertyization is progressively aggravated, and pressure sensitive voltage is more and more lower, and leakage current is increasing, the liter of piezo-resistance body temperature in actual use
Height, cause leakage current bigger, form vicious circle, so that temperature rise reaches the burning-point of its exterior packaging material, so as to be risen because of high fever
Fire.
The failure omen of piezo-resistance is the fast lifting of temperature, and the lifting speed of temperature is faster than the lifting speed of leakage current
Degree, therefore be most suitable come the timely performance for judging piezo-resistance using temperature treatment mode.The key of its protecting effect is
The collection of heat, transmission speed.It is existing all to be used using the full mould protection lightning protection device of the piezo-resistance with temperature protection, the mode of connection
Pin is wound or the mode of spot welding, and this structure is cumbersome, and contact of the Thermal Cutoffs with piezo-resistance is linear contact, and temperature is transmitted
Slowly, pin position is uncontrollable, is unfavorable for producing, protecting effect is bad.
Utility model content
In order to overcome above mentioned problem, the utility model provides a kind of fire-proof and explosion-proof lightning protection module, utility model profit
Coordinated with shell, inner cover, the first overcoat, the second overcoat, piezo-resistance component and fuse, piezo-resistance is by surge impact
When, temperature rises, and internal gas expands to be spread to top through hole, and now smart temperature fuse just can more directly be felt
The change of temperature, gas is in diffusion process also by the resistance of fire protection flame retarding thing, by the buffering of two layers of overcoat, prestige of exploding
Power will be reduced, and plus fire proofing material is filled with, safe effect is good.
To achieve these goals, the utility model provides following technical scheme：
A kind of fire-proof and explosion-proof lightning protection module, including shell, inner cover, the first overcoat, the second overcoat, piezo-resistance group
Part and fuse；
The shell, first overcoat, the inner cover and the second overcoat are set gradually, and the shell is provided with
First passage, the inner cover are provided with the second passage；
The fuse is electrically connected with the piezo-resistance component, and the fuse and piezo-resistance component are arranged at
In second overcoat.
Further, the piezo-resistance component includes the first piezo-resistance and the second piezo-resistance, and the fuse is set
Between first piezo-resistance and second piezo-resistance.
Further, the shape of first passage and second passage is circular hole.
Further, the shell includes opening cuboid and the first shrouding layer, and the first shrouding layer is arranged on the length
The opening of cube.
Further, the inner cover includes opening cuboid and the second shrouding layer, and the second shrouding layer is arranged on the length
The opening of cube.
Further, the material of first overcoat and second overcoat is quartz sand or epoxy resin.
Further, the material of the shell and inner cover is ceramics.
The utility model have the advantage that including：
Coordinated using shell, inner cover, the first overcoat, the second overcoat, piezo-resistance component and fuse, piezo-resistance
During by surge impact, temperature rises, and internal gas expands to spread to top through hole, and now smart temperature fuse just can be more
Directly feel the change of temperature, gas, also by the resistance of fire protection flame retarding thing, passes through two layers overcoat in diffusion process
Buffering, brisance will be reduced, and plus fire proofing material is filled with, safe effect is good.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the stereogram of fire-proof and explosion-proof lightning protection module described in the utility model；
Fig. 2 is the sectional view of fire-proof and explosion-proof lightning protection module described in the utility model；
Fig. 3 is the structural representation of fire-proof and explosion-proof piezo-resistance component and fuse described in the utility model.
Description of reference numerals is as follows：
1st, shell；101st, the first passage；2nd, the first piezo-resistance；3rd, fuse；4th, the second piezo-resistance；5th, first is anti-
Sheath；6th, inner cover；601st, the second passage；7th, the second overcoat；8th, the second shrouding layer；9th, the first shrouding layer.
Embodiment
, below will be to technology of the present utility model to make the purpose of this utility model, technical scheme and advantage clearer
Scheme is described in detail.Obviously, described embodiment is only the utility model part of the embodiment, rather than all
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not before creative work is made
Resulting all other embodiment is put, belongs to the scope that the utility model is protected.
Embodiment one：
As shown in Figure 1-Figure 3, the utility model provides a kind of fire-proof and explosion-proof lightning protection module, including shell 1, inner cover
6th, the first overcoat 5, the second overcoat 7, piezo-resistance component and fuse 3；
The shell 1, first overcoat 5, the overcoat 7 of the inner cover 6 and second are set gradually, and the shell 1
The first passage 101 is provided with, the inner cover 6 is provided with the second passage 601；
The fuse 3 is electrically connected with the piezo-resistance component, and the fuse 3 and piezo-resistance component are respectively provided with
In second overcoat 7.
The piezo-resistance component includes the first piezo-resistance 2 and the second piezo-resistance 4, and the fuse 3 is arranged on institute
State between the first piezo-resistance 2 and second piezo-resistance 4.
The shape of first passage 101 and second passage 601 is circular hole.
The shell 1 includes opening cuboid and the first shrouding layer 9, and the first shrouding layer 9 is arranged on the cuboid
Opening.
The inner cover includes opening cuboid and the second shrouding layer 8, and the second shrouding layer 8 is arranged on the cuboid
Opening.
The material of first overcoat 5 and second overcoat 7 is quartz sand.
The material of the shell 1 and inner cover 6 is ceramics.
It is as follows using above-mentioned fire-proof and explosion-proof lightning protection module：
Coordinated using shell 1, inner cover 6, the first overcoat 5, the second overcoat 7, piezo-resistance component and fuse 3, pressed
When quick resistance is by surge impact, temperature rises, and internal gas expands to spread to top through hole, and now smart temperature fuse
3 just can more directly feel the change of temperature, and gas, also by the resistance of fire protection flame retarding thing, is prevented in diffusion process by two layers
The buffering of sheath, brisance will be reduced, and plus quartz sand fire proofing material is filled with, safe effect is good.
Material also with the shell 1 and inner cover 6 is ceramics, has fire resisting advantage.
Embodiment two：
As shown in Figure 1-Figure 3, the utility model provides a kind of fire-proof and explosion-proof lightning protection module, including shell 1, inner cover
6th, the first overcoat 5, the second overcoat 7, piezo-resistance component and fuse 3；
The shell 1, first overcoat 5, the overcoat 7 of the inner cover 6 and second are set gradually, and the shell 1
The first passage 101 is provided with, the inner cover 6 is provided with the second passage 601；
The fuse 3 is electrically connected with the piezo-resistance component, and the fuse 3 and piezo-resistance component are respectively provided with
In second overcoat 7.
The piezo-resistance component includes the first piezo-resistance 2 and the second piezo-resistance 4, and the fuse 3 is arranged on institute
State between the first piezo-resistance 2 and second piezo-resistance 4.
The shape of first passage 101 and second passage 601 is circular hole.
The shell 1 includes opening cuboid and the first shrouding layer 9, and the first shrouding layer 9 is arranged on the cuboid
Opening.
The inner cover includes opening cuboid and the second shrouding layer 8, and the second shrouding layer 8 is arranged on the cuboid
Opening.
The material of first overcoat 5 and second overcoat 7 is epoxy resin.
The material of the shell 1 and inner cover 6 is ceramics.
It is as follows using above-mentioned fire-proof and explosion-proof lightning protection module：
Coordinated using shell 1, inner cover 6, the first overcoat 5, the second overcoat 7, piezo-resistance component and fuse 3, pressed
When quick resistance is by surge impact, temperature rises, and internal gas expands to spread to top through hole, and now smart temperature fuse
3 just can more directly feel the change of temperature, and gas, also by the resistance of fire protection flame retarding thing, is prevented in diffusion process by two layers
The buffering of sheath, brisance will be reduced, and plus epoxy resin fire proofing material is filled with, safe effect is good.
Material also with the shell 1 and inner cover 6 is ceramics, has fire resisting advantage.
It is described above, only specific embodiment of the present utility model, but the scope of protection of the utility model is not limited to
In this, any one skilled in the art can readily occur in change in the technical scope that the utility model discloses
Or replace, it should all cover within the scope of protection of the utility model.Therefore, the scope of protection of the utility model should be with the power
The protection domain that profit requires is defined.
Claims (7)
- A kind of 1. fire-proof and explosion-proof lightning protection module, it is characterised in that；Including shell, inner cover, the first overcoat, the second overcoat, Piezo-resistance component and fuse；The shell, first overcoat, the inner cover and the second overcoat are set gradually, and the shell is provided with first Passage, the inner cover are provided with the second passage；The fuse electrically connects with the piezo-resistance component, and the fuse and piezo-resistance component be arranged at it is described In second overcoat.
- 2. fire-proof and explosion-proof lightning protection module according to claim 1, it is characterised in that the piezo-resistance component includes the One piezo-resistance and the second piezo-resistance, the fuse be arranged on first piezo-resistance and second piezo-resistance it Between.
- 3. fire-proof and explosion-proof lightning protection module according to claim 1, it is characterised in that first passage and described The shape of two passages is circular hole.
- 4. fire-proof and explosion-proof lightning protection module according to claim 1, it is characterised in that the shell includes opening cuboid With the first shrouding layer, the first shrouding layer is arranged on the opening of the cuboid.
- 5. fire-proof and explosion-proof lightning protection module according to claim 1, it is characterised in that the inner cover includes opening cuboid With the second shrouding layer, the second shrouding layer is arranged on the opening of the cuboid.
- 6. fire-proof and explosion-proof lightning protection module according to claim 1, it is characterised in that first overcoat and described The material of two overcoats is quartz sand or epoxy resin.
- 7. fire-proof and explosion-proof lightning protection module according to claim 1, it is characterised in that the material of the shell and inner cover is equal For ceramics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720627797.7U CN206790090U (en) | 2017-06-01 | 2017-06-01 | A kind of fire-proof and explosion-proof lightning protection module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720627797.7U CN206790090U (en) | 2017-06-01 | 2017-06-01 | A kind of fire-proof and explosion-proof lightning protection module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206790090U true CN206790090U (en) | 2017-12-22 |
Family
ID=60714692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720627797.7U Active CN206790090U (en) | 2017-06-01 | 2017-06-01 | A kind of fire-proof and explosion-proof lightning protection module |
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| CN (1) | CN206790090U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110987456A (en) * | 2019-11-18 | 2020-04-10 | 上海新力动力设备研究所 | Engine simulation device for ignition device test |
-
2017
- 2017-06-01 CN CN201720627797.7U patent/CN206790090U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110987456A (en) * | 2019-11-18 | 2020-04-10 | 上海新力动力设备研究所 | Engine simulation device for ignition device test |
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