CN204695885U - A kind of large valued resistor - Google Patents
A kind of large valued resistor Download PDFInfo
- Publication number
- CN204695885U CN204695885U CN201520250061.3U CN201520250061U CN204695885U CN 204695885 U CN204695885 U CN 204695885U CN 201520250061 U CN201520250061 U CN 201520250061U CN 204695885 U CN204695885 U CN 204695885U
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- CN
- China
- Prior art keywords
- main body
- resistor main
- resistance
- resistor
- keyway
- 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 - Fee Related
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Abstract
The utility model relates to a kind of large valued resistor, comprise resistor main body, resistance installing hole is offered along described resistor main body direction of axis line, the inwall of resistance installing hole offers multiple keyway, by fitting key in keyway, resistance rod member and resistor main body are installed together, form a dismountable structure; In distance, resistance installing hole one fragment position place offers louvre; One side end face of described resistor main body offers heat radiation groove to opposite side end face direction, and the outer cylinder surface of resistor main body is provided with radiating groove.The utility model, specially for large-scale resistance, resistor main body offers louvre, radiating groove and heat radiation groove, can improve its radiating effect, prevent that the temperature of resistive element inside is too high causes it to burn out; By by resistor main body and resistance member design for removably connecting, be convenient to installation and removal.
Description
Technical field
The utility model relates to technical field of electronic components, particularly relates to a kind of large valued resistor.
Background technology
The English name of resistance is resistance, is usually abbreviated as R, and it is a kind of fundamental property of conductor, relevant with the size of conductor, material, temperature.Ohm's law points out voltage, pass between electric current and resistance three is I=U/R, that is R=U/I.The base unit of resistance is ohm, represents with Greek alphabet " Ω ".
In use there are some problems in resistance of the prior art: 1, heat dissipation problem: because it is related to the useful life of resistance, particularly when the large-scale resistance that large electric current passes through, the heat of resistance accumulated inside is just many, the too high resistance that causes of easy Yin Wendu is burned, cause circuit malfunctions, serious meeting causes whole circuit to be burnt.2, installation question: resistive element is one-body molded setting with the rod member of installation resistive element, is not easy dismounting, after resistive element damages, needs rod member to change together, causes the one waste of resource.
Utility model content
The utility model, in order to overcome deficiency of the prior art, provides a kind of large valued resistor.
The utility model is achieved through the following technical solutions:
A kind of large valued resistor, comprise resistor main body, offer resistance installing hole along described resistor main body direction of axis line, the inwall of resistance installing hole offers multiple keyway, by fitting key in keyway, resistance rod member and resistor main body are installed together, form a dismountable structure; In distance, resistance installing hole one fragment position place offers louvre; One side end face of described resistor main body offers heat radiation groove to opposite side end face direction, and the outer cylinder surface of resistor main body is provided with radiating groove.
As optimal technical scheme of the present utility model, the quantity of described keyway is three, and described keyway is uniformly distributed along the inwall circumference of axis hole.
As optimal technical scheme of the present utility model, the cross section of described louvre is rounded, the cross section semicircular in shape of described radiating groove, and the cross section of described heat radiation groove is trapezoidal shape.
As optimal technical scheme of the present utility model, described resistor main body adopts oxide ceramic materials to make.
Compared with prior art, the beneficial effects of the utility model are: 1, the utility model is specially for large-scale resistance, resistor main body offers louvre, radiating groove and heat radiation groove, its radiating effect can be improved, prevent that the temperature of resistive element inside is too high causes it to burn out; 2, by by resistor main body and resistance member design for removably connecting, be convenient to installation and removal.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1-resistor main body; 2-resistance installing hole; 3-keyway; 4-dispels the heat groove; 5-radiating groove; 6-louvre.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
Refer to Fig. 1, Fig. 1 is structural representation of the present utility model.
The large valued resistor of described one, comprise resistor main body 1, resistance installing hole 2 is offered along described resistor main body 1 direction of axis line, the inwall of resistance installing hole 2 offers multiple keyway 3, by fitting key in keyway 3, resistance rod member and resistor main body 1 are installed together, form a dismountable structure, be convenient to installation and removal.
In distance, resistance installing hole 2 one fragment position place offers louvre 6, one side end face of described resistor main body 1 offers heat radiation groove 4 to opposite side end face direction, and the outer cylinder surface of resistor main body 1 is provided with radiating groove 5, the cross section of described louvre 6 is rounded, the cross section semicircular in shape of described radiating groove 5, the cross section of described heat radiation groove 4 is trapezoidal shape.By offering louvre 6, radiating groove 5 and heat radiation groove 4 in resistor main body, its radiating effect can be improved, prevent that the temperature of resistive element inside is too high causes it to burn out.
In the present embodiment: described resistor main body 1 adopts oxide ceramic materials to make.
In the present embodiment: the quantity of described keyway 3 is three, and described keyway 3 is uniformly distributed along the inwall circumference of axis hole 2.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection range of the present utility model.
Claims (4)
1. a large valued resistor, comprises resistor main body (1), offers resistance installing hole (2), it is characterized in that along described resistor main body (1) direction of axis line:
The inwall of resistance installing hole (2) offers multiple keyway (3), by fitting key in keyway (3), resistance rod member and resistor main body (1) is installed together, forms a dismountable structure;
In distance, resistance installing hole (2) fragment position place offers louvre (6);
One side end face of described resistor main body (1) offers heat radiation groove (4) to opposite side end face direction, and the outer cylinder surface of resistor main body (1) is provided with radiating groove (5).
2. the large valued resistor of one according to claim 1, is characterized in that: the quantity of described keyway (3) is three, and described keyway (3) is uniformly distributed along the inwall circumference of axis hole (2).
3. the large valued resistor of one according to claim 1, is characterized in that: the cross section of described louvre (6) is rounded, the cross section semicircular in shape of described radiating groove (5), and the cross section of described heat radiation groove (4) is trapezoidal shape.
4. the large valued resistor of one according to claim 1, is characterized in that: described resistor main body (1) adopts oxide ceramic materials to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520250061.3U CN204695885U (en) | 2015-04-23 | 2015-04-23 | A kind of large valued resistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520250061.3U CN204695885U (en) | 2015-04-23 | 2015-04-23 | A kind of large valued resistor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204695885U true CN204695885U (en) | 2015-10-07 |
Family
ID=54236147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520250061.3U Expired - Fee Related CN204695885U (en) | 2015-04-23 | 2015-04-23 | A kind of large valued resistor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204695885U (en) |
-
2015
- 2015-04-23 CN CN201520250061.3U patent/CN204695885U/en not_active Expired - Fee Related
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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: 20151007 Termination date: 20160423 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |