CN202042300U - Rheostat protective cover and rheostatic device - Google Patents
Rheostat protective cover and rheostatic device Download PDFInfo
- Publication number
- CN202042300U CN202042300U CN201120050401XU CN201120050401U CN202042300U CN 202042300 U CN202042300 U CN 202042300U CN 201120050401X U CN201120050401X U CN 201120050401XU CN 201120050401 U CN201120050401 U CN 201120050401U CN 202042300 U CN202042300 U CN 202042300U
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- rheostat
- described ceramic
- ceramic shell
- protective cover
- shell
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Abstract
The utility model belongs to the technical field of electronic components, and provides a rheostat protective cover and a rheostatic device. The rheostat protective cover comprises a shell component, wherein the shell component is provided with a hollow inner cavity and is used for containing a rheostatic component and a temperature breaking component, and the shell component comprises a ceramic shell and a ceramic cap; an opening is arranged at one end of the ceramic shell, and the ceramic cap is fixedly sealed to cover the opening of the ceramic shell; the ceramic cap is provided with a through hole; and the rheostatic device comprises the rheostat protective cover, and the rheostatic component and the temperature breaking component are arranged in the rheostat protective cover. The rheostat protective cover and the rheostatic device provided by the utility model are characterized in that the rheostatic component and the temperature breaking component can be arranged in the same inner cavity, and when the rheostatic component gets on fire due to a collapse and causes high temperature, the temperature breaking component can get prompt induction in time to avoid the burnout of a circuit; and besides, both the ceramic shell and the ceramic cap are made from a ceramic material, and can resist high temperature with excellent insulating property and high reliability.
Description
Technical field
The utility model belongs to technical field of electronic components, relates in particular to a kind of rheostat protective cover and rheostat.
Background technology
Present rheostat protective cover; it is provided with two storage tanks and separates so that resistance change element and temperature are broken element; when resistance change element is fought because of collapse rises when causing high temperature; temperature breaks element and can not in time be responded to rapidly; thereby cause power circuit in time not cut off the very first time; circuit burns easily and brings danger, poor reliability.
The utility model content
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art; a kind of rheostat protective cover and rheostat are provided; it has a hollow cavity; resistance change element and temperature break element can place same inner chamber; when resistance change element is fought because of collapse rises when causing high temperature; temperature breaks element and can in time be responded to rapidly; but the power circuit very first time in time cuts off; avoid circuit burnout and dangerous generation; and ceramic shell adopts ceramic material to make; it can high temperature resistant and excellent insulation performance, and reliability is good.
The utility model is achieved in that a kind of rheostat protective cover, comprises having a hollow cavity and being used for ccontaining resistance change element and temperature breaks the housing unit of element, and described housing unit comprises ceramic shell.
Further, described housing unit also comprises ceramic cap, and described ceramic cap fixed sealing is placed on described ceramic shell opening part, offers perforation on the described ceramic cap.
Particularly, described ceramic cap is adhesively fixed on described ceramic shell; It is oval or circular that the cross section of described ceramic shell is Long Circle.
Particularly, an end of described ceramic shell opening is provided with step surface, and described ceramic cap supports and terminates on the described step surface.
The utility model also provides a kind of rheostat, comprises the housing unit with hollow cavity, is provided with resistance change element in the described housing unit and temperature breaks element, and described housing unit comprises ceramic shell, and described ceramic shell one end is provided with opening.
Further, described housing unit also comprises ceramic cap, and described ceramic cap fixed sealing is placed on described ceramic shell opening part, offers on the described ceramic cap to break the perforation that the pin of element wears for described resistance change element and temperature.
Particularly, described ceramic cap is adhesively fixed on described ceramic shell; It is oval or circular that the cross section of described ceramic shell is Long Circle.
Particularly, described temperature breaks element and is close to described resistance change element.
Particularly, an end of described ceramic shell opening is provided with step surface, and described ceramic cap supports and terminates on the described step surface.
Particularly, the lateral wall of described ceramic shell and madial wall are provided with pattern draft.
A kind of rheostat protective cover and rheostat that the utility model provides; its housing unit has a hollow cavity; resistance change element and temperature break element can place same inner chamber; temperature breaks element can be close to described resistance change element; when resistance change element is fought because of collapse rises when causing high temperature; temperature breaks element and can in time be responded to rapidly; but the power circuit very first time in time cuts off; avoid circuit burnout and dangerous generation; and ceramic shell and ceramic cap all adopt ceramic material to make; it can high temperature resistant and excellent insulation performance, and reliability is good.
Description of drawings
Fig. 1 is the exploded perspective schematic diagram of a kind of rheostat protective cover of providing of the utility model embodiment;
Fig. 2 is the assembling generalized section of a kind of rheostat protective cover of providing of the utility model embodiment;
Fig. 3 is the exploded perspective schematic diagram of a kind of rheostat of providing of the utility model embodiment.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
As shown in figures 1 and 3; a kind of rheostat protective cover that the utility model embodiment provides; comprise and have a hollow cavity and be used for ccontaining resistance change element 210 and temperature breaks the housing unit 100 of element 210; described housing unit 100 comprises ceramic shell 110; described ceramic shell 110 1 ends are provided with opening; resistance change element 210 and temperature break element 210 so that pack into, and resistance change element 210 and temperature break element 210 and be arranged in same inner chamber.Electronic devices and components in the rheostat protective cover produce high temperature, on fire, explosion time, and the components and parts in the rheostat protective cover outside can not be affected and destroy.By such design, cause high temperature when the resistance change element in the rheostat protective cover 210 collapse or when on fire, but breaking 210 very first times of element, temperature senses; and the circuit of in time cutting off the electricity supply; avoid other electronic device of circuit to burn, avoid bringing danger, circuit reliability is good.In concrete the application, can in ceramic shell 110, place one or two or more ccontaining resistance change elements 210 and temperature breaks element 210, all belong to protection range of the present utility model by demand.
Further, as an embodiment of the present utility model, as Fig. 1～shown in Figure 3, housing unit 100 also comprises ceramic cap 120, described ceramic cap 120 fixed sealing are placed on described ceramic shell 110 opening parts, offer perforation 121 on the described ceramic cap 120, the pin that breaks element 210 for resistance change element placed within 210 and temperature passes; Described ceramic shell 110 and ceramic cap 120 are ceramic member, have utilized ceramic material high temperature resistant, and heat-proof quality is good, the advantage that structural strength is good.
Preferably; as an embodiment of the present utility model; as shown in figures 1 and 3; it is oval or circular that the cross section of described ceramic shell 110 is Long Circle; to avoid in the application sets, improve structural strength, the resistance change element 210 in the rheostat protective cover collapses and explosion time; ceramic shell 110 is not fragile, prevents resistance change element 210 collapse and influence ceramic shell 110 electronic devices and components outward.Additionally, ceramic shell 110 also can be square or suitable shape such as polygon, all belongs to protection range of the present utility model.In the present embodiment, the cross section of ceramic shell 110 is Long Circle.
Particularly, as an embodiment of the present utility model, as depicted in figs. 1 and 2, described ceramic cap 120 is adhesively fixed on described ceramic shell 110, and is simple in structure, easy to assembly.
Particularly, as an embodiment of the present utility model, as shown in figures 1 and 3, an end of described ceramic shell 110 openings is provided with step surface 111, and described ceramic cap 120 supports and terminates on the described step surface 111, so that assembling.
Particularly, as an embodiment of the present utility model, as depicted in figs. 1 and 2, the lateral wall and the madial wall of described ceramic shell 110 are provided with pattern draft, so that the demoulding is enhanced productivity, reduce to produce generating.
As Fig. 1～shown in Figure 3, the utility model also provides a kind of rheostat, comprise housing unit 100 with a hollow cavity, be provided with resistance change element 210 in the described housing unit 100 and temperature breaks element 210, described housing unit 100 comprises ceramic shell 110, described ceramic shell 110 1 ends are provided with opening, so that pack into resistance change element 210 and temperature break element 210, resistance change element 210 and temperature break element 210 and be arranged in same inner chamber.Electronic devices and components in the rheostat protective cover produce high temperature, on fire, explosion time, and the components and parts in the rheostat protective cover outside can not be affected and destroy.By such design; cause high temperature when the resistance change element in the rheostat protective cover 210 collapse or when on fire; housing unit 100 can cover in flame in the housing unit 100; avoid flame to burn housing unit 100 components and parts on every side; temperature breaks element 210 as a thermal induction element; but its very first time is sensed the high temperature that metal oxide resistance change element 210 causes unusually; and make and reacting rapidly with the circuit of in time cutting off the electricity supply; circuit is quit work; in case cause danger; avoid other electronic device of circuit to be burnt, circuit reliability is good.In concrete the application, can in ceramic shell 110, place one or two or more by demand and break element 210, all belong to protection range of the present utility model in ccontaining resistance change element 210 and temperature.
Further, as an embodiment of the present utility model, as Fig. 1～shown in Figure 3, described housing unit 100 also comprises ceramic cap 120, described ceramic cap 120 fixed sealing are placed on described ceramic shell 110 opening parts, offer on the described ceramic cap 120 to break the perforation 121 that the pin of element 210 wears for described resistance change element 210 and temperature; Described ceramic shell 110 and ceramic cap 120 are ceramic member.Utilized ceramic material high temperature resistant, heat-proof quality is good, the advantage that structural strength is good.
Preferably; as an embodiment of the present utility model; as shown in figures 1 and 3; it is oval or circular that the cross section of described ceramic shell 110 is Long Circle; to avoid in the application sets, improve structural strength, the resistance change element 210 in the rheostat protective cover collapses and explosion time; ceramic shell 110 is not fragile, prevents resistance change element 210 collapse and influence ceramic shell 110 electronic devices and components outward.Additionally, ceramic shell 110 also can be square or suitable shape such as polygon, all belongs to protection range of the present utility model.
Particularly, as an embodiment of the present utility model, as depicted in figs. 1 and 2, described ceramic cap 120 is adhesively fixed on described ceramic shell 110, and is simple in structure, easy to assembly.
Particularly, as an embodiment of the present utility model, as shown in figures 1 and 3, described temperature breaks element 210 and is close to described resistance change element 210, when resistance change element 210 collapse produce heatings, blast, when on fire, temperature breaks element 210 and can avoid it to influence surrounding environment and object at the shortest time internal induction to the unusual of temperature and in time cut off circuit, thereby prevented other loss, reliability is good.
Particularly, as an embodiment of the present utility model, as shown in figures 1 and 3, an end of described ceramic shell 110 openings is provided with step surface 111, and described ceramic cap 120 supports and terminates on the described step surface 111, so that assembling.
Particularly, as an embodiment of the present utility model, as depicted in figs. 1 and 2, the lateral wall and the madial wall of described ceramic shell 110 are provided with pattern draft, so that the demoulding is enhanced productivity, reduce production costs.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection range of the present utility model.
Claims (10)
1. rheostat protective cover is characterized in that: comprise having a hollow cavity and be used for ccontaining resistance change element and temperature breaks the housing unit of element, described housing unit comprises ceramic shell, and described ceramic shell one end is provided with opening.
2. a kind of rheostat protective cover as claimed in claim 1, it is characterized in that: described housing unit also comprises ceramic cap, described ceramic cap fixed sealing is placed on described ceramic shell opening part, offers perforation on the described ceramic cap.
3. a kind of rheostat protective cover as claimed in claim 2 is characterized in that: described ceramic cap is adhesively fixed on described ceramic shell; It is oval or circular that the cross section of described ceramic shell is Long Circle.
4. as claim 2 or 3 described a kind of rheostat protective covers, it is characterized in that: an end of described ceramic shell opening is provided with step surface, and described ceramic cap supports and terminates on the described step surface.
5. rheostat is characterized in that: comprise the housing unit with a hollow cavity, be provided with resistance change element in the described housing unit and temperature breaks element, described housing unit comprises ceramic shell, and described ceramic shell one end is provided with opening.
6. a kind of rheostat as claimed in claim 5, it is characterized in that: described housing unit also comprises ceramic cap, described ceramic cap fixed sealing is placed on described ceramic shell opening part, offers on the described ceramic cap to break the perforation that the pin of element wears for described resistance change element and temperature.
7. a kind of rheostat as claimed in claim 6 is characterized in that: described ceramic cap is adhesively fixed on described ceramic shell; It is oval or circular that the cross section of described ceramic shell is Long Circle.
8. a kind of rheostat as claimed in claim 5 is characterized in that: described temperature breaks element and is close to described resistance change element.
9. a kind of rheostat as claimed in claim 6 is characterized in that: an end of described ceramic shell opening is provided with step surface, and described ceramic cap supports and terminates on the described step surface.
10. as each described a kind of rheostat in the claim 6 to 9, it is characterized in that: the lateral wall and the madial wall of described ceramic shell are provided with pattern draft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120050401XU CN202042300U (en) | 2011-02-28 | 2011-02-28 | Rheostat protective cover and rheostatic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120050401XU CN202042300U (en) | 2011-02-28 | 2011-02-28 | Rheostat protective cover and rheostatic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202042300U true CN202042300U (en) | 2011-11-16 |
Family
ID=44969737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120050401XU Expired - Fee Related CN202042300U (en) | 2011-02-28 | 2011-02-28 | Rheostat protective cover and rheostatic device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202042300U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104008688A (en) * | 2014-06-09 | 2014-08-27 | 常州市零伍壹玖电子有限公司 | Slide rheostat teaching aid |
| CN105575562A (en) * | 2016-01-29 | 2016-05-11 | 太仓弘杉环保科技有限公司 | Corrosion-resistant and high-temperature resistant resistor box |
-
2011
- 2011-02-28 CN CN201120050401XU patent/CN202042300U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104008688A (en) * | 2014-06-09 | 2014-08-27 | 常州市零伍壹玖电子有限公司 | Slide rheostat teaching aid |
| CN105575562A (en) * | 2016-01-29 | 2016-05-11 | 太仓弘杉环保科技有限公司 | Corrosion-resistant and high-temperature resistant resistor box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111116 Termination date: 20150228 |
|
| EXPY | Termination of patent right or utility model |