CN207250246U - A kind of cement milliohm resistor - Google Patents
A kind of cement milliohm resistor Download PDFInfo
- Publication number
- CN207250246U CN207250246U CN201720857411.1U CN201720857411U CN207250246U CN 207250246 U CN207250246 U CN 207250246U CN 201720857411 U CN201720857411 U CN 201720857411U CN 207250246 U CN207250246 U CN 207250246U
- Authority
- CN
- China
- Prior art keywords
- resistance
- porcelain shell
- mica sheet
- cement
- utility
- 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.)
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Abstract
The utility model discloses a kind of cement milliohm resistor, including porcelain shell, resistance chip is equipped with the top of the porcelain shell inner wall, the resistance chip is internally provided with filler material, mica sheet is equipped with the top of the resistance chip, the mica sheet is arranged at the top of porcelain shell, and the mica sheet both sides are equipped with foot piece.The utility model passes through equipped with filler material, can making resistance, stability improves in use, resistance value is measured with the electric current of display, voltage, ensure the precision of product, by equipped with two resistance chips and mica sheet, making resistance that there is shatter-proof, moisture-proof, heat-resisting, increase the service life of resistance, by that equipped with two groups of foot pieces, can reach the effect of quick heat radiating, security performance is more superior.
Description
Technical field
Electronic component technology field is the utility model is related to, more particularly to a kind of cement milliohm resistance.
Background technology
Milliohm resistance is often used as sampling in circuit, since resistance value is small, put in circuit to circuit influence in itself very
It is small, it can be used for the sampling to electric current in circuit, in general, resistance is placed in circuit, may be used as feeding back, electric current is believed
Number, voltage is converted into be used when measuring or feed back, or needing to do overcurrent protection in the line, but milli on the market at present
Europe resistance can not use for a long time mostly, and caloric value is high during use, it is not easy to distribute, precision tends not to meet using will
Ask, stability is poor, therefore, it is necessary to solve the above problems to invent a kind of cement milliohm resistance.
Utility model content
The purpose of this utility model is to provide a kind of cement milliohm resistance, to solve proposed in the above background technology ask
Topic.
To achieve the above object, the utility model provides following technical solution：A kind of cement milliohm resistance, including porcelain shell,
Resistance chip is equipped with the top of the porcelain shell inner wall, the resistance chip is internally provided with filler material, is equipped with the top of the resistance chip
Mica sheet, the mica sheet are arranged at the top of porcelain shell, and the mica sheet both sides are equipped with foot piece.
Preferably, the quantity of the resistance chip and mica sheet is two, and the quantity of the foot piece is two groups.
Preferably, the filler material includes resin and quartz sand.
Preferably, the material of the porcelain shell is made of aluminium oxide ceramics, and the material of the resistance chip is made of constantan band,
The material of the foot piece is made of red copper.
Preferably, the length of the porcelain shell is arranged to 47.5~48.5mm, and the width of the porcelain shell is arranged to 34.0~
35.0mm, the height of the porcelain shell are arranged to 17.5~18.5mm, and the thickness of the mica sheet is arranged to 1.0mm.
The technique effect and advantage of the utility model：By that equipped with filler material, resistance can be made to stablize in use
Property improve, measure resistance value with the electric current of display, voltage, ensure the precision of product, by equipped with two resistance chips and mica
Piece, makes resistance have the advantages that shatter-proof, moisture-proof, heat-resisting, increases the service life of resistance, by equipped with two groups of foot pieces, Ke Yida
It is more superior to the effect of quick heat radiating, security performance.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the utility model；
Fig. 2 is the top view of the utility model；
Fig. 3 is the side view of the utility model；
In figure：1 porcelain shell, 2 resistance chips, 3 filler materials, 4 mica sheets, 5 foot pieces.
Embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained, shall fall within the protection scope of the present invention.
The utility model provides a kind of cement milliohm resistance as shown in Figs. 1-3, including porcelain shell 1,1 inner wall of porcelain shell
Top is equipped with resistance chip 2, and the resistance chip 2 is internally provided with filler material 3, and the top of resistance chip 2 is equipped with mica sheet 4,
The mica sheet 4 is arranged on the top of porcelain shell 1, and 4 both sides of mica sheet are equipped with foot piece 5.
The quantity of the resistance chip 2 and mica sheet 4 is two, and the quantity of the foot piece 5 is two groups, the filler material
3 include resin and quartz sand, and can making resistance, stability improves in use, and resistance is measured with the electric current of display, voltage
Value, ensures the precision of product, and the material of the porcelain shell 1 is made of aluminium oxide ceramics, and the material of the resistance chip 2 is by constantan band
It is made, the material of the foot piece 5 is made of red copper, and aluminium oxide ceramics has preferable conductibility, mechanical strength and heat-resisting quantity, purple
The electrical conductivity and thermal conductivity of copper are only second to silver, are widely used in making conduction, heat conduction equipment, and have good corrosion resistance, institute
The length for stating porcelain shell 1 is arranged to 47.5~48.5mm, and the width of the porcelain shell 1 is arranged to 34.0~35.0mm, the porcelain shell 1
17.5~18.5mm is highly arranged to, the thickness of the mica sheet 4 is arranged to 1.0mm, and accurate numerical value ensures product resistance value.
This practicality operation principle：The resistance chip 2 after welding on constant pressure source, calculated with the electric current of display, voltage
Resistance value, the mica sheet 4 that thickness is 1.0mm is put into one group of 5 intermediate demand of foot piece, it is ensured that 5 contactless phenomenon of foot piece, at the bottom of during encapsulating
Portion need to fill out one layer of quartz sand, drip just common cement slurry filling surface after resin, ensure surfacing flawless, finished product measurement is also
It is that foot piece 5 is connected on constant pressure source, resistance value is measured with the electric current of display, voltage, resistance is 32 milliohms, accuracy
2%, ensure the precision of product and there is shatter-proof, moisture-proof, heat-resisting, security performance is more superior.
Finally it should be noted that：The above descriptions are merely preferred embodiments of the present invention, is not limited to this
Utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art
For, it can still modify the technical solution described in foregoing embodiments, or to which part technical characteristic
Equivalent substitution is carried out, where within the spirit and principles of the present invention, any modification, equivalent replacement, improvement and so on,
It should be included within the scope of protection of this utility model.
Claims (5)
1. a kind of cement milliohm resistor, including porcelain shell（1）, it is characterised in that：The porcelain shell（1）Resistor core is equipped with the top of inner wall
Piece（2）, the resistance chip（2）It is internally provided with filler material（3）, the resistance chip（2）Top is equipped with mica sheet（4）, it is described
Mica sheet（4）It is arranged on porcelain shell（1）Top, the mica sheet（4）Both sides are equipped with foot piece（5）.
A kind of 2. cement milliohm resistor according to claim 1, it is characterised in that：The resistance chip（2）And mica
Piece（4）Quantity be two, the foot piece（5）Quantity be two groups.
A kind of 3. cement milliohm resistor according to claim 1, it is characterised in that：The filler material（3）Including resin
And quartz sand.
A kind of 4. cement milliohm resistor according to claim 1, it is characterised in that：The porcelain shell（1）Material by oxygen
Change aluminium ceramics to be made, the resistance chip（2）Material be made of constantan band, the foot piece（5）Material be made of red copper.
A kind of 5. cement milliohm resistor according to claim 1, it is characterised in that：The porcelain shell（1）Length set
For 47.5~48.5mm, the porcelain shell（1）Width be arranged to 34.0~35.0mm, the porcelain shell（1）Height be arranged to
17.5~18.5mm, the mica sheet（4）Thickness be arranged to 1.0mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720857411.1U CN207250246U (en) | 2017-07-14 | 2017-07-14 | A kind of cement milliohm resistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720857411.1U CN207250246U (en) | 2017-07-14 | 2017-07-14 | A kind of cement milliohm resistor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207250246U true CN207250246U (en) | 2018-04-17 |
Family
ID=61877835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720857411.1U Expired - Fee Related CN207250246U (en) | 2017-07-14 | 2017-07-14 | A kind of cement milliohm resistor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207250246U (en) |
-
2017
- 2017-07-14 CN CN201720857411.1U patent/CN207250246U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180417 Termination date: 20190714 |