CN2483808Y - Surge voltage suppressor - Google Patents
Surge voltage suppressor Download PDFInfo
- Publication number
- CN2483808Y CN2483808Y CN 01206065 CN01206065U CN2483808Y CN 2483808 Y CN2483808 Y CN 2483808Y CN 01206065 CN01206065 CN 01206065 CN 01206065 U CN01206065 U CN 01206065U CN 2483808 Y CN2483808 Y CN 2483808Y
- Authority
- CN
- China
- Prior art keywords
- electrode slice
- discharge tube
- piezoresistive wafer
- processing unit
- insulation shell
- 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.)
- Expired - Lifetime
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Abstract
The utility model relates to a surge voltage suppressor, comprising an insulating shell and a varistor sheathed in the insulating shell, a first electrode slice and a second electrode slice are fixedly provided on the insulating shell respectively, the utility model is characterized in that a discharge tube which is sheathed in the insulating shell is provided, a processing unit is formed by that the discharge tube and the varistor are connected in parallel or serially, the first electrode slice is conductively connected with the external connection end of the processing unit, the second electrode slice is conductively connected with the other external connection end of the processing unit. Therefore, the suppressor, which has the advantages of the both the discharge tube and the varistor, is suitable for different occasions.
Description
The utility model relates to a kind of circuit protection device, especially a kind of Surge Suppressors.
China utility model patent China utility application discloses a kind of varistor No. 992226925.4, this varistor has been placed piezoresistive wafer in the rectangle insulation booth, and, two metal electrode boards are connected with the two poles of the earth of piezoresistive wafer by lead-in wire with the upper and lower cover plate of two metal electrode boards as insulation booth.It is said that this varistor can be directly used in the overvoltage protection of existing various kinds of equipment, thereby have certain characteristics.But, with regard to the employed protection component of this product---piezoresistive wafer, though it has short advantage of response time; but its through-current capacity is less, and promptly the electric current that can bear is less, simultaneously; its natural capacity is bigger, so its application is corresponding is subjected to certain restriction.Existing another kind of overvoltage protection element is a discharge tube, and it has bears the advantage that electric current is big, pressure limiting is low, natural capacity is little, but also has the defective that the response time is long, afterflow is arranged simultaneously, when it uses separately, also can bring some negative effects.
The purpose of this utility model provides better, the wideer Surge Suppressors of range of application of a kind of performance.
Surge Suppressors of the present utility model has insulation shell and the piezoresistive wafer that is set within the insulation shell, on insulation shell, be set with first electrode slice and second electrode slice respectively, it is characterized in that being provided with the discharge tube that is set within the insulation shell, described discharge tube is in parallel with piezoresistive wafer or to be connected in series be a processing unit, described first electrode slice is connected with the external connection end conduction of this processing unit, and described second electrode slice is connected with another external connection end conduction of this processing unit.In the utility model, above-mentioned insulation shell can be multiple shapes such as rectangle, tubular, but is good to adopt tubular especially.This is because the sealing property of circle tube form shell body is better, is suitable for comparatively using under the rugged environment.Simultaneously, the cavity shape of circle tube form shell body and discharge tube and piezoresistive wafer adapt, and this has not only reduced the fixedly difficulty of discharge tube and piezoresistive wafer, and have reduced the volume of entire product.When adopting pipe shape housing, can directly utilize of the upper and lower end opening sealing of first, second electrode slice with this pipe shape housing.Pipe shape housing can adopt various existing insulating material to make, and recommends to adopt ceramic pipe herein.In addition, for the ease of implementing fixing to discharge tube in the housing and resistor disc, the insulating trip of filling effect (also playing insulating effect in case of necessity) can also be set between the upper surface of the lower surface of first electrode slice and discharge tube, equally, also can also between the lower surface of piezoresistive wafer insulating trip be set with it at the upper surface of second electrode slice.The insulating trip of being set up can be the insulating trip that similar materials such as plastics or rubber are made, but is good with the ceramic insulation sheet especially.In the utility model, discharge tube can adopt commercially available existing product, and piezoresistive wafer also can directly adopt commercially available existing piezoresistive wafer, as zinc oxide varistor or strontium titanates piezoresistive wafer etc.
Compared with the aforementioned existing similar products, set up discharge tube in the product of the present utility model.When the discharge tube of setting up and piezoresistive wafer are in parallel, discharge tube can pass through bigger electric current, piezo-resistance then can respond quickly and cuts down surge voltage, thereby make inhibitor both keep discharge tube and bear the big advantage of electric current, have fast characteristics of piezoresistive wafer response time again, can be applicable in the bigger operational environment of electric current.When the discharge tube of setting up and piezoresistive wafer are in series, total capacitance after the serial connection reduces greatly, and the afterflow that discharge tube produces has been blocked in the existence of piezo-resistance, thereby makes inhibitor have that natural capacity is little, the characteristics of no afterflow, can be applicable among the high-frequency circuit.Therefore, in fact this inhibitor has had both the two advantage of discharge tube and piezo-resistance, has overcome the disadvantage that has been had when the two uses separately simultaneously again effectively, goes for different occasions.
Content of the present utility model further illustrates with the following Examples, but content of the present utility model is not limited only to content related among the embodiment.
Fig. 1 is the structural representation of Surge Suppressors among the embodiment 1.
Fig. 2 is the structural representation of Surge Suppressors among the embodiment 2.
Embodiment 1: as shown in Figure 1, Surge Suppressors in the present embodiment has insulation shell 1 and the piezoresistive wafer 2 that is set within the insulation shell 1, on insulation shell 1, be set with first electrode slice 3 and second electrode slice 4 respectively, it is characterized in that being provided with the discharge tube 5 that is set within the insulation shell, it is a processing unit that discharge tube 5 is connected in parallel with piezoresistive wafer 2, first electrode slice 3 is connected with an external connection end 6 conductions of this processing unit, and second electrode slice 4 is connected with another external connection end 7 conductions of this processing unit.In the present embodiment, insulation shell 1 is a pipe shape housing, and discharge tube 5 and piezoresistive wafer 2 overlapping being positioned in this pipe shape housing 1, first, second electrode slice 3,4 seal the upper and lower end opening of this pipe shape housing 1 respectively.Pipe shape housing 1 in this example is ceramic pipe.In addition, between the upper surface of the lower surface of first electrode slice 3 and discharge tube 5, be provided with insulating trip 8 in this example, between the lower surface of the upper surface of second electrode slice 4 and piezoresistive wafer 2, also be provided with insulating trip 9.Above-mentioned insulating trip 8,9 in the present embodiment is the ceramic insulation sheet.In the present embodiment, employed piezoresistive wafer 2 is a zinc oxide varistor.Surge Suppressors in the present embodiment is made with the following methods: stack zinc oxide varistor 2 and discharge tube 5 from the bottom to top successively in the zinc-plated ceramic pipe 1 in termination, with conductor 6,7 discharge tube 5 and resistor disc 2 be connected in parallel and cause respectively ceramic pipe 1 on, following two ends (these two exits promptly constitute two external connection end of above-mentioned processing unit), put ceramic insulation sheet 8 respectively in the upper surface of discharge tube and the lower surface of piezoresistive wafer, 9, the copper cap that employing is stamped to form is as electrode slice 3,4 (external diameter of this copper cap is identical with the external diameter of porcelain tube), with above-mentioned conductor 6,7 exit be pressed in respectively ceramic pipe 1 on, following zinc-plated termination 10,11 and copper hat type electrode slice 3, between 4, with the scolding tin sealing, make finished product at last then.
Embodiment 2: as shown in Figure 2, the Surge Suppressors in the present embodiment is similar to embodiment 1, and different is that in the present embodiment, discharge tube 5 is connected in series with piezoresistive wafer 2.
Claims (5)
1, a kind of Surge Suppressors, have insulation shell and the piezoresistive wafer that is set within the insulation shell, on insulation shell, be set with first electrode slice and second electrode slice respectively, it is characterized in that being provided with the discharge tube that is set within the insulation shell, described discharge tube is in parallel with piezoresistive wafer or to be connected in series be a processing unit, described first electrode slice is connected with the external connection end conduction of this processing unit, and described second electrode slice is connected with another external connection end conduction of this processing unit.
2, Surge Suppressors as claimed in claim 1, it is characterized in that described insulation shell is a pipe shape housing, described discharge tube and piezoresistive wafer are overlapping to be positioned in this pipe shape housing, and described first, second electrode slice seals the upper and lower end opening of this pipe shape housing respectively.
3, Surge Suppressors as claimed in claim 2 is characterized in that described pipe shape housing is ceramic pipe.
4, Surge Suppressors as claimed in claim 2 is characterized in that being provided with insulating trip between the upper surface of the lower surface of first electrode slice and discharge tube, also is provided with insulating trip between the lower surface of the upper surface of second electrode slice and piezoresistive wafer.
5, Surge Suppressors as claimed in claim 4 is characterized in that described insulating trip is the ceramic insulation sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01206065 CN2483808Y (en) | 2001-04-27 | 2001-04-27 | Surge voltage suppressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01206065 CN2483808Y (en) | 2001-04-27 | 2001-04-27 | Surge voltage suppressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2483808Y true CN2483808Y (en) | 2002-03-27 |
Family
ID=33626762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01206065 Expired - Lifetime CN2483808Y (en) | 2001-04-27 | 2001-04-27 | Surge voltage suppressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2483808Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104952570A (en) * | 2014-03-27 | 2015-09-30 | 深圳市槟城电子有限公司 | Piezoresistor of integrated gas discharge tube |
| CN110402525A (en) * | 2017-01-06 | 2019-11-01 | 西戴尔公司 | It is a kind of for preventing the integrated component of overvoltage, it is especially useful in coaxial cable system |
| CN110400666A (en) * | 2018-04-24 | 2019-11-01 | 成都铁达电子股份有限公司 | Combined press sensitive resistor |
| CN110556220A (en) * | 2018-06-04 | 2019-12-10 | 成都铁达电子股份有限公司 | Ceramic chip and low-limiting-voltage piezoresistor |
-
2001
- 2001-04-27 CN CN 01206065 patent/CN2483808Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104952570A (en) * | 2014-03-27 | 2015-09-30 | 深圳市槟城电子有限公司 | Piezoresistor of integrated gas discharge tube |
| CN110402525A (en) * | 2017-01-06 | 2019-11-01 | 西戴尔公司 | It is a kind of for preventing the integrated component of overvoltage, it is especially useful in coaxial cable system |
| CN110400666A (en) * | 2018-04-24 | 2019-11-01 | 成都铁达电子股份有限公司 | Combined press sensitive resistor |
| CN110400666B (en) * | 2018-04-24 | 2021-07-20 | 成都铁达电子股份有限公司 | Combined voltage dependent resistor |
| CN110556220A (en) * | 2018-06-04 | 2019-12-10 | 成都铁达电子股份有限公司 | Ceramic chip and low-limiting-voltage piezoresistor |
| CN110556220B (en) * | 2018-06-04 | 2022-08-26 | 成都铁达电子股份有限公司 | Ceramic chip and low-limiting-voltage piezoresistor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20110427 Granted publication date: 20020327 |