CN209487266U - A kind of cast resistor - Google Patents
A kind of cast resistor Download PDFInfo
- Publication number
- CN209487266U CN209487266U CN201822006835.4U CN201822006835U CN209487266U CN 209487266 U CN209487266 U CN 209487266U CN 201822006835 U CN201822006835 U CN 201822006835U CN 209487266 U CN209487266 U CN 209487266U
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- ceramic cylinder
- resistor
- ceramic
- cast
- cylinder
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Abstract
The utility model relates to the resistance fields of transformer vacuum load ratio bridging switch, more particularly to a kind of cast resistor, its structure includes ceramic cylinder, the channel of ceramic cylinder is interspersed with ceramic tube filler, resistor body is provided between ceramic cylinder and ceramic tube filler, the side wall of ceramic cylinder opens up jagged for resistor body heat dissipation, resistor body cannot be dropped out from notch, between the port of ceramic cylinder and ceramic tube filler there are vacancy, the vacancy is packaged with insulation board, the exit of resistor body is pierced by ceramic cylinder or insulation board, the cast resistor has good heat dissipation, high temperature resistant, corrosion-resistant and compact-sized advantage.
Description
Technical field
The utility model relates to the resistance fields of transformer vacuum load ratio bridging switch, and in particular to a kind of cast resistance
Device.
Background technique
Transformer vacuum load ratio bridging switch can connect resistor as transition resistance, when load ratio bridging switch gear shift,
When moving contact not yet leaves completely from a certain shelves, transition resistance is connected, to guarantee transformer not power loss, when moving contact arrival is another
After shelves, then disconnect transition resistance.Since transformer vacuum load ratio bridging switch needs to connect high-voltage great-current, transition resistor is then
It needs to work under high temperature electric circumstance for a long time, and the resistor body of the transition resistor of the prior art is exposed in air, for a long time
It is electrically influenced by high temperature, is not only easily damaged resistor in this way, and the environment of high temperature will affect the resistor power of resistance；This
Outside, exposed resistor body is also easy to be corroded, so that shortening the service life of resistance.
Summary of the invention
For the prior art there are above-mentioned technical problem, the utility model aim be to provide a kind of good heat dissipation, high temperature resistant,
Corrosion-resistant and compact-sized cast resistor.
For achieving the above object, the following technical schemes are provided:
A kind of cast resistor, including ceramic cylinder are provided, the channel of the ceramic cylinder is interspersed with ceramic tube filler, described
It is provided with resistor body between ceramic cylinder and the ceramic tube filler, the side wall of the ceramic cylinder opens up jagged for the electricity
Resistance body heat dissipation, the resistor body cannot be dropped out from the notch, between the port of the ceramic cylinder and the ceramic tube filler
There are vacancy, which is packaged with insulation board, and the exit of the resistor body is pierced by the ceramic cylinder or the insulation board.
Wherein, the material of both the ceramic cylinder and described ceramic tube filler is the ceramics that alumina content is 95%.
Wherein, the resistor body is resistance wire, which is located at institute around at least two spring bodies, the spring body is made as
It states notch and is blocked by the notch.
Wherein, the notch is the long strip through hole extended along the ceramic cylinder length direction.
Wherein, there are at least two long strip through hole, each long strip through hole is distributed in the side wall of the ceramic cylinder, and each
A long strip through hole blocks a spring body.
Wherein, the length of the long strip through hole is identical as the length of the ceramic cylinder.
Wherein, the central axis of the ceramic tube filler is identical as the central axis of the ceramic cylinder.
Wherein, the ceramic cylinder diameter is twice of the ceramic cylinder core diameter.
Wherein, the exit of the resistor body stretches out the insulation board.
Wherein, the insulation board is insulating mica plate.
The utility model has the beneficial effects that
Resistance heat caused by resistor body can be dispersed from the notch on ceramic cylinder and be dissipated from ceramic tube filler
It goes, maintains the heat dissipation effect of resistor body, and ceramic cylinder blocks on resistor body and ceramics have high temperature resistant and corrosion resistant
Function, to improve the high temperature resistance and corrosion resistance of entire resistor；Insulation board, which encloses resistor body, to be set, not only
Play the role of fixed resistance body, moreover it is possible to further improve the high temperature resistant and corrosion resistance of resistor；And entire resistance
Device takes full advantage of the space of ceramic cylinder and ceramic tube filler, has the advantages that compact-sized.
Detailed description of the invention
Fig. 1 is a kind of axonometric drawing of cast resistor of the utility model；
Fig. 2 is a kind of side view of cast resistor of the utility model；
Fig. 3 is the cross-sectional view in Fig. 2 at A-A.
Appended drawing reference:
Ceramic cylinder --- 1；Ceramic tube filler --- 2；Resistor body --- 3；Long strip through hole --- 4；Insulating mica plate ---
5；The exit of resistor body --- 6.
Specific embodiment
The utility model is described in detail below in conjunction with specific embodiments and drawings.
Embodiment.
The cast resistor of the present embodiment shown in Fig. 1, has interted a ceramic tube filler 2 in the channel of ceramic cylinder 1, should
Ceramic tube filler 2 is located at the central axis of ceramic cylinder 1, and the diameter of ceramic cylinder 1 is twice of the diameter of ceramic tube filler 2,
The placement space and heat-dissipating space of resistor body are can guarantee in this way, wherein the material of 2 the two of ceramic cylinder 1 and ceramic tube filler is equal
The ceramics for being 95% for alumina content.
Fig. 1 and Fig. 3 has uniformly opened up eight long strip through hole 4 shown in combining on the length direction of 1 side wall of ceramic cylinder, should
The length of long strip through hole 4 is identical as the length of ceramic cylinder 1, to open up notch to the maximum extent.
Shown in Fig. 3, the position between ceramic cylinder 1 and ceramic tube filler 2 is provided with resistor body 3, which is resistance
Silk, and resistance wire turns to six spring bodies, to improve the resistance value of resistor body.Shown in Fig. 1 or Fig. 2, as resistor body 3
The diameter of spring body is bigger than the width of long strip through hole 4 and each correspondence is stuck in a long strip through hole 4, to improve electricity to greatest extent
The heat dissipation effect of device is hindered, and fixed spring body can be played the role of.Certainly, resistor body 3 may be arranged as other forms, strip
The notch substitution of other forms can also be used in through-hole 4, as long as reaching heat dissipation effect.
Shown in Fig. 1 and Fig. 2 is combined, two insulating mica plates 5 will be between two ports of ceramic cylinder 1 and ceramic tube filler 2
Vacancy be encapsulated, to further fix and protective resistance body 3.Insulating mica plate 5 offers opening, and resistor body 3 draws
Outlet 6 is pierced by connect with electrical equipment from the opening on insulating mica plate 5.
Finally it should be noted that above embodiments are only to illustrate the technical solution of the utility model, rather than to this reality
With the limitation of novel protected range, although being explained in detail referring to preferred embodiment to the utility model, this field it is general
Lead to it will be appreciated by the skilled person that can be with the technical solution of the present invention is modified or equivalently replaced, without departing from this
The spirit and scope of utility model technical solution.
Claims (10)
1. a kind of cast resistor, it is characterized in that: including ceramic cylinder, the channel of the ceramic cylinder is interspersed with ceramic tube filler,
It is provided with resistor body between the ceramic cylinder and the ceramic tube filler, the side wall of the ceramic cylinder opens up jagged for institute
State resistor body heat dissipation, the resistor body cannot drop out from the notch, the port of the ceramic cylinder and the ceramic tube filler it
Between there are vacancy, which is packaged with insulation board, and the exit of the resistor body is pierced by the ceramic cylinder or the insulation
Plate.
2. a kind of cast resistor according to claim 1, it is characterized in that: the ceramic cylinder and the ceramic tube filler two
The material of person is the ceramics that alumina content is 95%.
3. a kind of cast resistor according to claim 1, it is characterized in that: the resistor body is resistance wire, the resistance wire
Around at least two spring bodies are made as, the spring body is located at the notch and is blocked by the notch.
4. a kind of cast resistor according to claim 3, it is characterized in that: the notch is along the ceramic cylinder length
The long strip through hole that direction extends.
5. a kind of cast resistor according to claim 4, it is characterized in that: have at least two long strip through hole, it is each
Long strip through hole is distributed in the side wall of the ceramic cylinder, and each long strip through hole blocks a spring body.
6. a kind of cast resistor according to claim 5, it is characterized in that: the length of the long strip through hole and the ceramics
The length of cylinder is identical.
7. a kind of cast resistor according to claim 1, it is characterized in that: the central axis and the pottery of the ceramics tube filler
The central axis of porcelain cylinder is identical.
8. a kind of cast resistor according to claim 7, it is characterized in that: the ceramic cylinder diameter is the ceramic cylinder
Twice of core diameter.
9. a kind of cast resistor according to claim 1, it is characterized in that: the exit stretching of the resistor body is described absolutely
Listrium.
10. a kind of cast resistor according to claim 1, it is characterized in that: the insulation board is insulating mica plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822006835.4U CN209487266U (en) | 2018-11-30 | 2018-11-30 | A kind of cast resistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822006835.4U CN209487266U (en) | 2018-11-30 | 2018-11-30 | A kind of cast resistor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209487266U true CN209487266U (en) | 2019-10-11 |
Family
ID=68117524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822006835.4U Active CN209487266U (en) | 2018-11-30 | 2018-11-30 | A kind of cast resistor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209487266U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109559862A (en) * | 2018-11-30 | 2019-04-02 | 广东福德电子有限公司 | A kind of cast resistor |
-
2018
- 2018-11-30 CN CN201822006835.4U patent/CN209487266U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109559862A (en) * | 2018-11-30 | 2019-04-02 | 广东福德电子有限公司 | A kind of cast resistor |
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