CN201348511Y - Throttle sensor with switch - Google Patents
Throttle sensor with switch Download PDFInfo
- Publication number
- CN201348511Y CN201348511Y CNU2009200673720U CN200920067372U CN201348511Y CN 201348511 Y CN201348511 Y CN 201348511Y CN U2009200673720 U CNU2009200673720 U CN U2009200673720U CN 200920067372 U CN200920067372 U CN 200920067372U CN 201348511 Y CN201348511 Y CN 201348511Y
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- CN
- China
- Prior art keywords
- guide rail
- sensor
- switch
- circuit connecting
- connecting hole
- 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 an automobile sensor, in particular to a throttle sensor provided with a switch, which aims to provide a novel throttle position sensor with the advantages of simple circuit structure, assurance of high coherence precision of two circuit signals, capability of being produced with ordinary printing equipment, and low price. Therefore, the throttle sensor provided with the switch provided by the utility model is characterized in that a first resistance guiding rail, a common terminal guiding rail, a first switch guiding rail, a second switch guiding rail, a third switch guiding rail and a drill resistor body are arranged on one side surface of a substrate and form three circuits under the action of an electric brush; and the switching among the three circuits can be achieved by correcting the resistance value of the drill resistor body. The sensor structure disclosed by the utility model can be produced even with ordinary printing equipment; the rejection rate is zero, thereby greatly reducing the cost; in addition, the switching voltage can be controlled accurately, so that the product quality can be ensured.
Description
Technical field
The utility model relates to a kind of automobile sensor, relates in particular to a kind of throttle sensor of belt switch.
Background technology
It is more and more accurate requiring in the middle of robotization control now, and accuracy requirement is more and more higher, and error requirements is more and more littler, and auto industry is like this equally.Automobile develops towards intelligent direction at present, and intelligent more automobile ECU (ECU (Electrical Control Unit)) signal to be processed is just many more, and is strict more for the signal accuracy that sensor sent of sending signal and consistance certainly.It is no problem that throttle position switch on the present market is exported one-channel signal at present, output two-way signal is also no problem, key issue is that the consistance of two paths of signals and correlativity have problem, such as: now ECU requires throttle position switch when voltage is output as 0.970V～0.746V, an other path switching signal switches to low level by high level, and the printing equipment of present printed sensor substrate does not reach this accuracy requirement, therefore the substrate scrappage that prints is very high, so the cost of product is very high.
The utility model content
The purpose of this utility model provides a kind of novel throttle position switch, and circuit structure is simple, and can guarantee two circuit signal consistance precision height, only needs common printing equipment to produce simultaneously, and is cheap.
In order to achieve the above object, the throttle sensor of a kind of belt switch of the utility model, include sensor outer housing and covering sensor end cap thereon, and be provided with sensor plug, in described sensor outer housing, be provided with substrate stationary platform and rotating shaft mounting hole, near the substrate stationary platform is six chip circuit splicing ears, is embedded with sensor substrate on the described substrate stationary platform; Described sensor substrate comprises right angle end and arc end, the centre is a through hole, this sensor substrate one external coating has the first resistance guide rail, the common port guide rail, the first switch guide rail, the second switch guide rail, the 3rd switch guide rail and Xiu Ke resistive element, be provided with six circuit connecting holes near the right angle end, be followed successively by the first circuit connecting hole from the right angle end to arc end, the second circuit connecting hole, the tertiary circuit connecting hole, the 4th circuit connecting hole, the 5th circuit connecting hole and the 6th circuit connecting hole, the described first resistance guide rail, repair an end of carving resistive element, the first switch guide rail and the 3rd switch guide rail are the circular arc with radius, the three forms a discontinuous outside semi arch successively, described common port guide rail and second switch guide rail also are the circular arc with radius, and the two forms a discontinuous inboard semi arch successively; The described first circuit connecting hole is connected the common port guide rail, the second circuit connecting hole is connected and is repaiied the resistive element at quarter, the tertiary circuit connecting hole is connected the outboard end of the first resistance guide rail, the 4th circuit connecting hole is connected the end of the first switch guide rail near the first resistance guide rail, the 5th circuit connecting hole is connected the outboard end of the 3rd switch guide rail, the 6th circuit connecting hole is connected the second switch guide rail, and the medial extremity of the described first resistance guide rail is connected in to repair and carves on the resistive element; Six circuit connecting holes of sensor substrate are stuck on six chip circuit splicing ears on the substrate stationary platform, the sensor rotating shaft is inserted in the rotating shaft mounting hole after passing through hole on the sensor substrate, the sensor rotating shaft be provided with two groups with radius and back to the brush fixed leg, be fixed with a brush on every group of brush fixed leg, each brush is provided with two brush heads, distance between two brush heads equals the distance between inboard semi arch and the outside semi arch, and two brush heads of described brush touch respectively on the device that is positioned at inboard semi arch and outside semi arch.
Further, between described second switch guide rail and the 3rd switch guide rail the switch region of a relative switch guide rail depression, in the depression switch region, be filled with the epoxy resin that switch region and guide rail are maintained an equal level.
Further, in described sensor rotating shaft, also be provided with water proof ring, can prevent that the dust in the water and air from entering in the sensor body cavity, improved the life-span of sensor and the stability of signal output.
Further, respectively be provided with a sensor fixed orifice in the both sides of described sensor outer housing; Be provided with an outstanding circular spacing skeleton at the back of described sensor outer housing.
Wherein, described guide rail and Xiu Ke resistive element are to be coated in the layer high molecule conductive plastic resistance of substrate surface or to be carbon film, and preferred layer high molecule conductive plastic resistance can further improve serviceable life of the present utility model; Described brush head is a claw type, and the pawl point contacts with substrate surface, and the brush head life-span of claw type will be grown relatively, and signals collecting is relatively stable.
Principle of the present utility model is as follows:
Suppose: the resistance of the first resistance guide rail is R
0, the resistance that the first resistance guide rail and circuit connecting section are divided is R
1(resistance when switch switches, described R
1Can measure), repairing the resistance of carving resistive element is R
2, switched voltage is U
Cut, 0.970V＞U wherein
Cut＞0.746V, supply voltage are U,
Obtain institute
The utility model makes it compared with prior art owing to adopted above-mentioned technical scheme, has following advantage and good effect:
The utility model is in traditional sensor circuit, design one and repaiied the resistive element at quarter, with the resistance engraving machine its resistance is repaiied quarter, make the switched voltage of switch in the switch switched voltage scope that ECU requires, even if common like this printing equipment also can be produced substrate of the present utility model, scrappage is zero, has reduced cost hugely, simultaneously can accurately must control switched voltage, make that the quality of product is guaranteed; Groove at described switch region is filled and led up with epoxy resin welding resistance lacquer, makes brush smoothly move between two guide rails, has increased the serviceable life of sensor like this.
Description of drawings
To embodiment of the present utility model and in conjunction with the description of its accompanying drawing, can further understand the purpose of this utility model, specific structural features and advantage by following.Wherein, accompanying drawing is:
Fig. 1 is the structural representation (throwing off end cap) of the utility model embodiment.
Fig. 2 is the shell mechanism synoptic diagram of the utility model embodiment.
Fig. 3 is the structural representation of substrate among Fig. 1.
Fig. 4 is the utility model shell rear view.
Fig. 5 is the utility model throttle sensor rotating shaft vertical view.
Among the figure: 11. brush heads; 2. sensor outer housing; 21. end cap pickup groove; 22. rotating shaft mounting hole; 23. substrate stationary platform; 24. chip circuit splicing ear; 25. sensor fixed orifice; 26. sensor plug; 42. spacing skeleton; 6. sensor substrate; 61. the first resistance guide rail; 62. common port guide rail; 63. the first switch guide rail; 64. second switch guide rail; 65. repair the resistive element at quarter; 66. switch region; 67. the 3rd switch guide rail; 68. circuit connecting hole; 681. the first circuit connecting hole; 682. second circuit connecting hole; 683. tertiary circuit connecting hole; 684. the 4th circuit connecting hole; 685. the 5th circuit connecting hole; 686. the 6th circuit connecting hole; 7. sensor rotating shaft; 71. brush fixed leg.
Embodiment
With reference to Fig. 1, Fig. 2, the utility model includes sensor outer housing 2 and covering sensor end cap thereon, and be provided with sensor plug 26, end cap is fastened on the end cap pickup groove 21, secure with fluid sealant, the both sides of sensor outer housing 2 respectively are provided with a sensor fixed orifice 25, and the back is provided with an outstanding circular spacing skeleton 42 (as Fig. 4).Being provided with substrate stationary platform 23 and rotating shaft mounting hole 22 in the sensor outer housing 2, is six chip circuit splicing ears 24 near substrate stationary platform 23, and sensor substrate 6 is embedded on substrate stationary platform 23.Reference as shown in Figure 3, sensor substrate 6 comprises right angle end and arc end, the centre is a through hole, sensor substrate 6 one external coatings have the first resistance guide rail 61, common port guide rail 62, the first switch guide rail 63, second switch guide rail 64, the 3rd switch guide rail 67 and Xiu Ke resistive element 65, in the present embodiment, above-mentioned guide rail and Xiu Ke resistive element are the layer high molecule conductive plastic resistance that is coated in substrate surface.Be provided with six circuit connecting holes 68 near the right angle end, be followed successively by the first circuit connecting hole 681 from the right angle end to arc end, second circuit connecting hole 682, tertiary circuit connecting hole 683, the 4th circuit connecting hole 684, the 5th circuit connecting hole 685 and the 6th circuit connecting hole 686, six circuit connecting holes 68 are connected with six circuit connecting terminals 24 on the sensor outer housing 2 respectively, and weld with soldering, the first resistance guide rail 61, repair an end of carving resistive element 65, the first switch guide rail 63 and the 3rd switch guide rail 67 are the circular arc with radius, four form a discontinuous outside semi arch successively, common port guide rail 62 and second switch guide rail 64 also are the circular arc with radius, and the two forms a discontinuous inboard semi arch successively; The first circuit connecting hole 681 is connected common port guide rail 62, second circuit connecting hole 682 is connected to repair and is carved resistive element 65, tertiary circuit connecting hole 683 is connected the outboard end of the first resistance guide rail 61, the 4th circuit connecting hole 684 is connected the end of the first switch guide rail 63 near the first resistance guide rail 61, the 5th circuit connecting hole 685 is connected the outboard end of the 3rd switch guide rail 67, the medial extremity of the 6th circuit connecting hole 686 connection second switch guide rails 64, the first resistance guide rails 61 is connected in to repair to be carved on the resistive element 65.Be inserted in the rotating shaft mounting hole 22 after sensor rotating shaft 7 passed through hole on the sensor substrate 6, zone between sensor rotating shaft 7 and the rotating shaft mounting hole 22 is provided with O-ring seal and automatic-reset spring, sensor rotating shaft 7 be provided with two groups with radius and back to brush fixed leg 71 (as shown in Figure 5), be fixed with a brush on every group of brush fixed leg 71, each brush is provided with two brush heads 11, the distance that two brush heads are 11 equals the distance between inboard semi arch and the outside semi arch, brush head 11 is a claw type, and the pawl point touches respectively on the device that is positioned at inboard semi arch and outside semi arch.Be the switch region 66 of a relative switch guide rail depression between second switch guide rail 64 and the 3rd switch guide rail 67, in depression switch region 66, be filled with epoxy resin, switch region 66 and guide rail are maintained an equal level.
The utility model is connected with the automotive system circuit by sensor plug 26, and the circular spacing skeleton 42 of the sensor of sensor outer housing is connected with the pedal related device, and fixed screw is connected with pedal by sensor fixed orifice 25.In the use, under the effect of brush, the first resistance guide rail 61, the second common port guide rail 62 and Xiu Ke resistive element 65 form a circuit S1, the first switch guide rail 63 forms circuit S2 with second switch guide rail 64 under the connection of brush, the 3rd switch guide rail 67 forms circuit S3 with second switch guide rail 64 under the connection of brush.According to the requirement of ECU, at circuit S1 output voltage at the interval V of switch switched voltage
CutThe time, on-off circuit S2 disconnects, on-off circuit S3 conducting.The interval V of this switch switched voltage
CutBe made as 0.970V～0.746V at the utility model, the substrate that generally prints is difficult to reach this strict requirement, and in the present embodiment, come Xiu Kexiuke resistive element 65 by the resistance engraving machine, make the output voltage of working as the S1 circuit at the interval V of switch switched voltage
CutThe time, on-off circuit S2 disconnects, on-off circuit S3 conducting.When driver's accelerator pedal, the gearing of pedal drives sensor rotating shaft 7 and rotates, 2 brushes of sensor rotating shaft 7 move on the resistance guide rail of substrate 6 and switch guide rail respectively, when brush moves, the resistance of circuit S1 changes, thereby can export the voltage signal of a linearity, and this linear voltage is received by ECU, along with the further change of pedal input angle is big, the output voltage of circuit S1 enters the interval V of switch switched voltage
CutThe time, on-off circuit S2 disconnects, on-off circuit S3 conducting, and this switching signal is also given automobile ECU, and ECU carries out respective handling in conjunction with other data, sends command adapted thereto.
Though the utility model is illustrated hereinbefore according to embodiment, this does not represent that scope of the present utility model is confined to above-mentioned structure, if by structure that claim of the present utility model covered all within protection domain.Those skilled in the art can be developed the equivalent substitution structure that at an easy rate after reading above-mentioned explanation, in following equalization variation and the modification of being done of spirit that does not break away from the utility model and scope, all should be covered by within the utility model claim.
Claims (8)
1. the throttle sensor of a belt switch, include sensor outer housing (2) and covering sensor end cap thereon, and be provided with sensor plug (26), it is characterized in that, in described sensor outer housing (2), be provided with substrate stationary platform (23) and rotating shaft mounting hole (22), near substrate stationary platform (23) is six chip circuit splicing ears, is embedded with sensor substrate (6) on the described substrate stationary platform (23);
Described sensor substrate (6) comprises right angle end and arc end, the centre is a through hole, these sensor substrate (6) one external coatings have the first resistance guide rail (61), common port guide rail (62), the first switch guide rail (63), second switch guide rail (64), the 3rd switch guide rail (67) and repair and carve resistive element (65), be provided with six circuit connecting holes (68) near the right angle end, be followed successively by the first circuit connecting hole (681) from the right angle end to arc end, second circuit connecting hole (682), tertiary circuit connecting hole (683), the 4th circuit connecting hole (684), the 5th circuit connecting hole (685) and the 6th circuit connecting hole (686), the described first resistance guide rail (61), repair an end of carving resistive element (65), the first switch guide rail (63) and the 3rd switch guide rail (67) are the circular arc with radius, four form a discontinuous outside semi arch successively, described common port guide rail (62) and second switch guide rail (64) also are the circular arc with radius, and the two forms a discontinuous inboard semi arch successively;
The described first circuit connecting hole (681) is connected common port guide rail (63), second circuit connecting hole (682) is connected to repair and is carved resistive element (65), tertiary circuit connecting hole (683) is connected the outboard end of the first resistance guide rail (61), the 4th circuit connecting hole (684) is connected the end of the first switch guide rail (63) near the first resistance guide rail (61), the 5th circuit connecting hole (685) is connected the outboard end of the 3rd switch guide rail (67), the 6th circuit connecting hole (686) is connected second switch guide rail (64), and the medial extremity of the described first resistance guide rail (61) is connected in to repair and carves on the resistive element (65);
Six circuit connecting holes (68) of sensor substrate (6) are stuck on six chip circuit splicing ears on the substrate stationary platform (23), sensor rotating shaft (7) is inserted in the rotating shaft mounting hole (22) after passing through hole on the sensor substrate (6), sensor rotating shaft (7) be provided with two groups with radius and back to brush fixed leg (71), be fixed with a brush on every group of brush fixed leg (71), each brush is provided with two brush heads (11), distance between two brush heads (11) equals the distance between inboard semi arch and the outside semi arch, and two brush heads (11) of described brush touch respectively on the device that is positioned at inboard semi arch and outside semi arch.
2. the throttle sensor of a kind of belt switch according to claim 1, it is characterized in that, be the switch region (66) of a relative switch guide rail depression between described second switch guide rail (64) and the 3rd switch guide rail (67), in depression switch region (66), be filled with the epoxy resin that switch region and guide rail are maintained an equal level.
3. the throttle sensor of a kind of belt switch according to claim 1 is characterized in that, described guide rail and Xiu Ke resistive element are to be coated in the layer high molecule conductive plastic resistance of substrate surface or to be carbon film.
4. the throttle sensor of a kind of belt switch according to claim 1 is characterized in that, described brush head is a claw type, and the pawl point contacts with substrate surface.
5. the throttle sensor of a kind of belt switch according to claim 1 is characterized in that, also is provided with water proof ring in the described sensor rotating shaft (7).
6. the throttle sensor of a kind of belt switch according to claim 1 is characterized in that, the both sides of described sensor outer housing (2) respectively are provided with a sensor fixed orifice.
7. the throttle sensor of a kind of belt switch according to claim 1 is characterized in that, the back of described sensor outer housing (2) is provided with an outstanding circular spacing skeleton.
8. the throttle sensor of a kind of belt switch according to claim 1 is characterized in that, described sensor substrate (6) is provided with one and repaiies resistive element (65) at quarter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200673720U CN201348511Y (en) | 2009-01-23 | 2009-01-23 | Throttle sensor with switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200673720U CN201348511Y (en) | 2009-01-23 | 2009-01-23 | Throttle sensor with switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201348511Y true CN201348511Y (en) | 2009-11-18 |
Family
ID=41367977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200673720U Expired - Fee Related CN201348511Y (en) | 2009-01-23 | 2009-01-23 | Throttle sensor with switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201348511Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112833922A (en) * | 2020-12-31 | 2021-05-25 | 泉州杰嘉智能科技有限公司 | Multifunctional electromagnetic rotary encoder and detection circuit |
| CN114034241A (en) * | 2022-01-11 | 2022-02-11 | 四川永星电子有限公司 | Precise coaxial quadruple angular displacement sensor |
-
2009
- 2009-01-23 CN CNU2009200673720U patent/CN201348511Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112833922A (en) * | 2020-12-31 | 2021-05-25 | 泉州杰嘉智能科技有限公司 | Multifunctional electromagnetic rotary encoder and detection circuit |
| CN114034241A (en) * | 2022-01-11 | 2022-02-11 | 四川永星电子有限公司 | Precise coaxial quadruple angular displacement sensor |
| CN114034241B (en) * | 2022-01-11 | 2022-03-22 | 四川永星电子有限公司 | Precise coaxial quadruple angular displacement sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091118 Termination date: 20120123 |