CN206148195U - Circuit is resistance for board - Google Patents
Circuit is resistance for board Download PDFInfo
- Publication number
- CN206148195U CN206148195U CN201621184479.XU CN201621184479U CN206148195U CN 206148195 U CN206148195 U CN 206148195U CN 201621184479 U CN201621184479 U CN 201621184479U CN 206148195 U CN206148195 U CN 206148195U
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- CN
- China
- Prior art keywords
- plastic inner
- screw rod
- aluminum alloy
- resistance
- inner shell
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model discloses a circuit is resistance for board, including aluminium alloy housing, plastic inner case, carbon powder layer and lead wire, aluminium alloy housing, plastic inner case and carbon powder layer follow outer extremely interior setting in proper order, the lead wire is installed in the carbon powder layer both sides, the inside baffle that still is provided with of plastic inner case, install the screw rod on the baffle, the screw rod respectively with aluminium alloy housing and plastic inner case threaded connection, be provided with the horizontal pole on the screw rod, horizontal pole and screw rod fixed connection, be provided with the round hole in the aluminium alloy housing, the round hole is the equidistance and distributes, aluminium alloy housing both sides are provided with cementing layer and end cover, and this circuit is resistance for board can the regulating electrical resistance size, and the radiating effect is good, uses safe and reliable.
Description
Technical field
This utility model is related to a kind of circuit board resistance.
Background technology
Resistor is typically directly referred to as in daily life resistance.It is a current limiting element, after resistance is connect in circuit,
The resistance of resistor is fixed usually two pins, and it can limit the size of current by its institute's chord road.Resistance can not
What is changed is referred to as fixed resister.Resistance variable referred to as potentiometer or rheostat.Preferably resistor be it is linear, i.e.,
It is directly proportional to additional instantaneous voltage by the transient current of resistor.For the rheostat of partial pressure.In exposed resistive element
On, pressed against one or two removable hard contact.Contact position determines the resistance between resistive element either end and contact.
Terminal voltage has determination functional relationship with electric current, embodies the two-terminal device that electric energy is converted into other forms ability, uses word
Representing, unit is ohm Ω to female R.Practical devices such as bulb, heating wire, resistor etc. are represented by resistor element.
Typically and temperature, material, also length, cross-sectional area are relevant, and gauge resistor is received for the resistance value size of resistive element
It is temperature coefficient that temperature affects the physical quantity of size, and it is defined as the percent that resistance value changes when temperature often raises 1 DEG C.
The main physical characteristics of resistance are to become electric energy to say that it is a dissipative cell into heat energy, also, and electric current just produces interior energy through it.
Resistance generally plays in circuit partial pressure, shunting.For signal, exchange can pass through resistance with direct current signal.
At present existing circuit board resistance cloth can adjust resistance sizes, and radiating effect cloth is good, using cloth safety.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of circuit board resistance and can adjust resistance sizes, radiating
Effect is good, safe and reliable circuit board resistance.
To solve the above problems, this utility model is adopted the following technical scheme that：
A kind of circuit board resistance, including aluminum alloy casing, plastic inner shell, carbon dust layer and lead, the aluminum alloy casing,
Plastic inner shell and carbon dust layer are arranged from outside to inside successively, and the lead is arranged on carbon dust layer both sides, and the plastic inner shell inside is also
Baffle plate is provided with, screw rod is installed on the baffle plate, the screw rod is threadedly coupled respectively with aluminum alloy casing and plastic inner shell, institute
State and be provided with screw rod cross bar, the cross bar is fixedly connected with screw rod, circular hole, the circular hole are provided with the aluminum alloy casing
In being equally spaced, the aluminum alloy casing both sides are provided with cementing layer and end cap.
Preferably, the aluminum alloy casing is connected by cementing layer with end cap, end cap is kept to firmly install.
Preferably, the end cap semicircular in shape is arranged, end cap being capable of lift structure intensity.
Preferably, the lead sequentially passes through end cap, aluminum alloy casing and plastic inner shell, keep lead easy for installation.
Preferably, the baffle plate is adapted with plastic inner shell, keep baffle plate movement stable.
The beneficial effects of the utility model are：The screw rod of setting rotates the position for being capable of controllable register, so as to adjust carbon dust
The cross-sectional area of layer, realizes the regulation of resistance sizes；There is louvre to keep good heat dissipation effect in the aluminum alloy casing of setting；Arrange
Plastic inner shell keep insulation effect it is good；The end cap of setting can lift structure intensity, keep using safety.
Description of the drawings
Fig. 1 is a kind of structure chart of circuit board resistance of this utility model.
Specific embodiment
As shown in figure 1, a kind of circuit board resistance, including aluminum alloy casing 1, plastic inner shell 2, carbon dust layer 3 and lead 4,
The aluminum alloy casing 1, plastic inner shell 2 and carbon dust layer 3 are arranged from outside to inside successively, and the lead 4 is arranged on 3 liang of carbon dust layer
Side, is additionally provided with baffle plate 5 inside the plastic inner shell 3, screw rod 6 is provided with the baffle plate 5, and the screw rod 6 is closed respectively with aluminum
Golden shell 1 and plastic inner shell 2 are threadedly coupled, and cross bar 7 is provided with the screw rod 6, and the cross bar 7 is fixedly connected with screw rod 6, institute
State and circular hole 8 is provided with aluminum alloy casing 1, in being equally spaced, the both sides of the aluminum alloy casing 1 are provided with gluing to the circular hole 8
Layer 9 and end cap 10.
The aluminum alloy casing 1 is connected by cementing layer 9 with end cap 10.
The semicircular in shape of the end cap 10 is arranged.
The lead 4 sequentially passes through end cap 10, aluminum alloy casing 1 and plastic inner shell 2.
The baffle plate 5 is adapted with plastic inner shell 2.
The beneficial effects of the utility model are：The screw rod of setting rotates the position for being capable of controllable register, so as to adjust carbon dust
The cross-sectional area of layer, realizes the regulation of resistance sizes；There is louvre to keep good heat dissipation effect in the aluminum alloy casing of setting；Arrange
Plastic inner shell keep insulation effect it is good；The end cap of setting can lift structure intensity, keep using safety.
The above, specific embodiment only of the present utility model, but protection domain of the present utility model do not limit to
In this, any change or replacement expected without creative work all should be covered within protection domain of the present utility model.
Claims (5)
1. a kind of circuit board resistance, it is characterised in that：Including aluminum alloy casing, plastic inner shell, carbon dust layer and lead, the aluminum
Alloy shell, plastic inner shell and carbon dust layer are arranged from outside to inside successively, and the lead is arranged on carbon dust layer both sides, in the plastics
Baffle plate is additionally provided with inside shell, screw rod is installed on the baffle plate, the screw rod respectively with aluminum alloy casing and plastic inner shell spiral shell
Stricture of vagina connects, and cross bar is provided with the screw rod, and the cross bar is fixedly connected with screw rod, and in the aluminum alloy casing circle is provided with
Hole, in being equally spaced, the aluminum alloy casing both sides are provided with cementing layer and end cap to the circular hole.
2. circuit board resistance according to claim 1, it is characterised in that：The aluminum alloy casing is by cementing layer and end
Lid connection.
3. circuit board resistance according to claim 1, it is characterised in that：The end cap semicircular in shape is arranged.
4. circuit board resistance according to claim 1, it is characterised in that：The lead sequentially passes through end cap, aluminium alloy
Shell and plastic inner shell.
5. circuit board resistance according to claim 1, it is characterised in that：The baffle plate is adapted with plastic inner shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621184479.XU CN206148195U (en) | 2016-10-28 | 2016-10-28 | Circuit is resistance for board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621184479.XU CN206148195U (en) | 2016-10-28 | 2016-10-28 | Circuit is resistance for board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206148195U true CN206148195U (en) | 2017-05-03 |
Family
ID=58624858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621184479.XU Expired - Fee Related CN206148195U (en) | 2016-10-28 | 2016-10-28 | Circuit is resistance for board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206148195U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106356165A (en) * | 2016-10-28 | 2017-01-25 | 成都聚智工业设计有限公司 | Resistor for circuit board |
-
2016
- 2016-10-28 CN CN201621184479.XU patent/CN206148195U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106356165A (en) * | 2016-10-28 | 2017-01-25 | 成都聚智工业设计有限公司 | Resistor for circuit board |
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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: 20170503 Termination date: 20171028 |