CN202917183U - Device driving instrument indicator to rotate by utilizing gas - Google Patents
Device driving instrument indicator to rotate by utilizing gas Download PDFInfo
- Publication number
- CN202917183U CN202917183U CN 201220616834 CN201220616834U CN202917183U CN 202917183 U CN202917183 U CN 202917183U CN 201220616834 CN201220616834 CN 201220616834 CN 201220616834 U CN201220616834 U CN 201220616834U CN 202917183 U CN202917183 U CN 202917183U
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- CN
- China
- Prior art keywords
- gas
- conductor temperature
- magnetic
- slide block
- temperature sheet
- 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.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a device driving an instrument indicator to rotate by utilizing gas. The device driving the instrument indicator to rotate by utilizing gas includes a gas instrument body and a gas instrument control circuit connected with the gas instrument body. The gas instrument body includes a ring seal gas cavity, a magnetic seal slide block arranged in the ring seal gas cavity, a semi-conductor temperature sheet, two temperature sensing resistor, and the magnetic instrument indicator arranged above the ring seal gas cavity and interacting with the magnetic seal slide block. The magnetic seal slide block and the semi-conductor temperature sheets divide the ring seal gas cavity into a left cavity and a right cavity. The two temperature sensing resistors are disposed in the left cavity and the right cavity respectively and the semiconductor temperature sheets and the two temperature sensing resistors are all connected with the gas instrument control circuit respectively. According to the utility model, gas pressure is changed through changing temperature. The gas pressure pushes the magnetic seal slide block, so that the magnetic seal block drives the magnetic instrument indicator to rotate in a clockwise manner or in a counter-clockwise manner. The device driving the instrument indicator to rotate by utilizing gas provided by the utility model is simple in structure, convenient to use, immune to electromagnetic interference and can guarantee the normal rotation of the instrument indicator well.
Description
Technical field
The utility model relates to instrument indication field, specifically a kind of device that utilizes the gas-powered gauge pointer to rotate.
Background technology
The shortcoming that at present popular convenient type crossed coil motor for instrument exists: convenient type crossed coil motor for instrument chief component comprises hairspring, convenient type crossed coil and magnet steel.When convenient type crossed coil pointer motor forwards another position to from a position, at first to overcome the acting force acting of hairspring, be subject to the return action power of hairspring when gauge pointer forwards new position to, this just requires convenient type crossed coil will pass into suitable electric current generation always and keeps pointer maintenance balance with the silky reacting force of trip always.So gauge pointer all will overcome the reacting force of hairspring and power consumption all the time when deflection is indicated; Owing to factors such as mechanical vibration, cross coil electrical machinery often occurs indicating initial zero-bit that skew is arranged or indicating situation not in place, thereby brings skew or the position stroke misregister of gauge pointer zero-bit in use in addition.Although stepper motor has overcome the shortcoming of convenient type crossed coil, complicated in mechanical structure, make difficulty, bring that manufacturing cost is high, poor reliability.Above two kinds of motors all are to lean on the driving force of electromagnetic field that gauge pointer is rotated, and easily are subject to electromagnetic interference (EMI), do not satisfy the application under the strong electromagnetic interference environment.
The utility model content
The technical problems to be solved in the utility model provides a kind of device that utilizes the gas-powered gauge pointer to rotate, and has solved the indicating instrument problem that instrument function is difficult to realize under strong electromagnetic interference environment.
The technical solution of the utility model is:
A kind of device that utilizes the gas-powered gauge pointer to rotate, the gas instrument control circuit that includes the gas instrument body and be attached thereto; Described gas instrument body includes the ring seal air chamber, be arranged at magnetic seal slide block, conductor temperature sheet and two temperature sensing resistors in the ring seal air chamber, be arranged at ring seal air chamber top and with the interactional magnetic gauge pointer of magnetic seal slide block; Described magnetic seal slide block and conductor temperature sheet are divided into left chamber and right chamber with ring seal air chamber inside, described two temperature sensing resistors place respectively in left chamber and the right chamber, and described conductor temperature sheet with are connected a temperature sensing resistor and all are connected with described gas instrument control circuit.
Described conductor temperature sheet includes P end conductor temperature sheet and the N end conductor temperature sheet of mutual electrical connection, form left chamber between described P end conductor temperature sheet and the magnetic seal slide block, form right chamber between described N end conductor temperature sheet and the magnetic seal slide block;
Described gas instrument control circuit comprises CPU, and the left chamber's temperature sensor output terminal that is connected with CPU respectively, right chamber temp sensor output terminal and P end conductor temperature sheet power input, the N end conductor temperature sheet power input of ground connection; Described left chamber temperature sensor output terminal is electrically connected with temperature sensing resistor in being arranged at left chamber, the described right chamber temp sensor output terminal temperature sensing resistor interior with being arranged at right chamber is electrically connected, described P end conductor temperature sheet power input is electrically connected with P end conductor temperature sheet, and described N end conductor temperature sheet power input is electrically connected with N end conductor temperature sheet.
Described magnetic gauge pointer includes the gauge pointer body that is arranged at ring seal air chamber top and is fixed on the gauge pointer body and is positioned at gauge pointer magnetic directly over the magnetic seal slide block.
Described gas instrument control circuit also includes signal amplifier, signal amplifier includes current output terminal, control reference voltage input terminal and direct current signal input end, the current output terminal of described signal amplifier is connected with P end conductor temperature sheet power input, the control reference voltage input terminal of described signal amplifier is connected with the control reference voltage output terminal of CPU, and the direct current signal input end of described signal amplifier is connected with the pwm control signal output terminal of CPU by integrating circuit.
Described integrating circuit includes two groups of integral units parallel with one another and forms, and described every group of integral unit includes resistance and the electric capacity of mutual series connection.
Advantage of the present utility model:
(1), magnetic seal slide block of the present utility model plays the effect with ring seal air chamber internal insulation, and it can be free to slide between two chambers, the magnetic seal slide block attaches permanent magnet, thus finally can drive the magnetic gauge pointer clockwise or rotate counterclockwise;
(2), the principle of magnetic seal slide block rotation of the present utility model is: temperature variation in left chamber and the right chamber, according to change law of gas p1*v1/t1=p2*v2/t2, be that left chamber's temperature raises, it is large that air pressure becomes, right chamber temp reduces, air pressure reduces, and the high chamber of air pressure can promote the magnetic seal slide block to the low chamber of air pressure, thereby the magnetic seal slide block is moved.
The utility model utilizes temperature change air pressure, and air pressure promotes the magnetic seal slide block, thereby the magnetic seal slide block drives the clockwise of magnetic gauge pointer or rotates counterclockwise; The utility model is simple in structure, easy to use, is not subjected to electromagnetic interference (EMI), can well guarantee the normal rotation of gauge pointer.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of the utility model gas instrument control circuit.
Embodiment
1, sees Fig. 1, a kind of device that utilizes the gas-powered gauge pointer to rotate, the gas instrument control circuit 2 that includes gas instrument body 1 and be attached thereto; Gas instrument body 1 includes ring seal air chamber 11, be arranged at magnetic seal slide block 12, P end conductor temperature sheet 13, N end conductor temperature sheet 14 and two temperature sensing resistor 15a, 15b in the ring seal air chamber 11, be arranged at the gauge pointer body 16 of ring seal air chamber 11 tops and be fixed on the gauge pointer body 16 and be positioned at gauge pointer magnetic 17 directly over the magnetic seal slide block 12; Form left chamber 18 between P end conductor temperature sheet 13 and the magnetic seal slide block 12, form right chamber 19 between N end conductor temperature sheet 14 and the magnetic seal slide block 12, temperature sensing resistor 15a places in the left chamber, temperature sensing resistor 15b places in the right chamber, and P end conductor temperature sheet 13 and N end conductor temperature sheet 14 are electrically connected mutually;
See Fig. 2, gas instrument control circuit 2 comprises CPU, and the temperature sensor output terminal PT1 of left chamber that is connected with CPU respectively, right chamber temp sensor output terminal PT2 and P end conductor temperature sheet power input V1, the N end conductor temperature sheet power input V2 of ground connection, signal amplifier AMP1; Signal amplifier AMP includes current output terminal pin 1, control reference voltage input terminal pin 2 and direct current signal input end pin 3, current output terminal pin 1 is connected with P end conductor temperature sheet power input V1, control reference voltage input terminal pin 2 is connected with the control reference voltage output terminal of CPU, and direct current signal input end pin 3 is connected with the pwm control signal output terminal of CPU by integrating circuit; Integrating circuit includes two groups of integral units parallel with one another and forms, and first group of integral unit includes the resistance R 1 of mutual series connection and resistance R 2 and the capacitor C 3 that 2, the second groups of integral units of capacitor C include mutual series connection; The temperature sensor output terminal PT1 of left chamber is electrically connected with temperature sensing resistor 15a in being arranged at left chamber, the right chamber temp sensor output terminal PT2 temperature sensing resistor 15b interior with being arranged at right chamber is electrically connected, P end conductor temperature sheet power input V1 is electrically connected with P end conductor temperature sheet 13, and N end conductor temperature sheet power input V2 is electrically connected with N end conductor temperature sheet 14.
2, a kind of method of utilizing the gas-powered gauge pointer to rotate may further comprise the steps:
(1), at first pass through the CPU output pwm control signal of gas instrument control circuit, pwm control signal becomes direct current signal to AC signal by integrating circuit, and this direct current signal entering signal amplifier compares with the control reference voltage signal;
(2), when direct current signal during greater than control reference voltage signal Vref, the current output terminal output positive signal of signal amplifier, direction of current namely can hold the conductor temperature sheet to flow to P end conductor temperature sheet by N, inherent characteristic according to the conductor temperature sheet, the temperature that temperature reduces, right chamber is interior in the left chamber is raise, gaseous tension uprises in gaseous tension step-down in the left chamber, the right chamber thereby make, thereby the magnetic seal slide block moves to left chamber, is rotated counterclockwise thereby the magnetic seal slide block drives the magnetic gauge pointer; When direct current signal strengthened, the magnetic equipment pointer rotated counterclockwise speed and accelerates;
(3), when direct current signal during less than control reference voltage signal Vref, the current output terminal output negative signal of signal amplifier, direction of current namely can hold the conductor temperature sheet to flow to N end conductor temperature sheet by P, inherent characteristic according to the conductor temperature sheet, the temperature that temperature raises, right chamber is interior in the left chamber is reduced, gaseous tension uprises in the left chamber, the interior gaseous tension step-down of right chamber thereby make, thereby magnetic seal slide block to the right chamber moves, and turns clockwise thereby the magnetic seal slide block drives the magnetic gauge pointer; When control reference voltage signal Vref strengthened, the magnetic equipment pointer clockwise rotated speed and accelerates.
(4), when direct current signal equals to control reference voltage signal Vref, signal amplifier no signal output, as a result magnetic gauge pointer transfixion;
(5), in left chamber and right chamber during temperature variation, two temperature sensing resistors can gather respectively left chamber and the interior temperature of right chamber, then be transferred to CPU, CPU judges magnetic gauge pointer current location according to the temperature acquisition value, if current location is not in the error allowed band, CPU further regulates pwm control signal output, until magnetic gauge pointer indication position is in the scope of error regulation, CPU regulates end.
Claims (5)
1. a device that utilizes the gas-powered gauge pointer to rotate is characterized in that: the gas instrument control circuit that includes the gas instrument body and be attached thereto; Described gas instrument body includes the ring seal air chamber, be arranged at magnetic seal slide block, conductor temperature sheet and two temperature sensing resistors in the ring seal air chamber, be arranged at ring seal air chamber top and with the interactional magnetic gauge pointer of magnetic seal slide block; Described magnetic seal slide block and conductor temperature sheet are divided into left chamber and right chamber with ring seal air chamber inside, described two temperature sensing resistors place respectively in left chamber and the right chamber, and described conductor temperature sheet with are connected a temperature sensing resistor and all are connected with described gas instrument control circuit.
2. a kind of device that utilizes the gas-powered gauge pointer to rotate according to claim 1, it is characterized in that: described conductor temperature sheet includes P end conductor temperature sheet and the N end conductor temperature sheet of mutual electrical connection, form left chamber between described P end conductor temperature sheet and the magnetic seal slide block, form right chamber between described N end conductor temperature sheet and the magnetic seal slide block;
Described gas instrument control circuit comprises CPU, and the left chamber's temperature sensor output terminal that is connected with CPU respectively, right chamber temp sensor output terminal and P end conductor temperature sheet power input, the N end conductor temperature sheet power input of ground connection; Described left chamber temperature sensor output terminal is electrically connected with temperature sensing resistor in being arranged at left chamber, the described right chamber temp sensor output terminal temperature sensing resistor interior with being arranged at right chamber is electrically connected, described P end conductor temperature sheet power input is electrically connected with P end conductor temperature sheet, and described N end conductor temperature sheet power input is electrically connected with N end conductor temperature sheet.
3. a kind of device that utilizes the gas-powered gauge pointer to rotate according to claim 1 is characterized in that: described magnetic gauge pointer includes the gauge pointer body that is arranged at ring seal air chamber top and is fixed on the gauge pointer body and is positioned at gauge pointer magnetic directly over the magnetic seal slide block.
4. a kind of device that utilizes the gas-powered gauge pointer to rotate according to claim 2, it is characterized in that: described gas instrument control circuit also includes signal amplifier, signal amplifier includes current output terminal, control reference voltage input terminal and direct current signal input end, the current output terminal of described signal amplifier is connected with P end conductor temperature sheet power input, the control reference voltage input terminal of described signal amplifier is connected with the control reference voltage output terminal of CPU, and the direct current signal input end of described signal amplifier is connected with the pwm control signal output terminal of CPU by integrating circuit.
5. a kind of device that utilizes the gas-powered gauge pointer to rotate according to claim 4, it is characterized in that: described integrating circuit includes two groups of integral units parallel with one another and forms, and described every group of integral unit includes resistance and the electric capacity of mutual series connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220616834 CN202917183U (en) | 2012-11-21 | 2012-11-21 | Device driving instrument indicator to rotate by utilizing gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220616834 CN202917183U (en) | 2012-11-21 | 2012-11-21 | Device driving instrument indicator to rotate by utilizing gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202917183U true CN202917183U (en) | 2013-05-01 |
Family
ID=48165472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220616834 Withdrawn - After Issue CN202917183U (en) | 2012-11-21 | 2012-11-21 | Device driving instrument indicator to rotate by utilizing gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202917183U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102982851A (en) * | 2012-11-21 | 2013-03-20 | 合肥创源车辆控制技术有限公司 | Device for driving meter needle to rotate by utilizing gas and driving method thereof |
-
2012
- 2012-11-21 CN CN 201220616834 patent/CN202917183U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102982851A (en) * | 2012-11-21 | 2013-03-20 | 合肥创源车辆控制技术有限公司 | Device for driving meter needle to rotate by utilizing gas and driving method thereof |
| CN102982851B (en) * | 2012-11-21 | 2015-04-08 | 合肥创源车辆控制技术有限公司 | Device for driving meter needle to rotate by utilizing gas and driving method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130501 Effective date of abandoning: 20150408 |
|
| RGAV | Abandon patent right to avoid regrant |