CN205194616U - Electronic pressure switch - Google Patents
Electronic pressure switch Download PDFInfo
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- CN205194616U CN205194616U CN201521020044.7U CN201521020044U CN205194616U CN 205194616 U CN205194616 U CN 205194616U CN 201521020044 U CN201521020044 U CN 201521020044U CN 205194616 U CN205194616 U CN 205194616U
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- switch
- electronic pressure
- pressure switch
- resistance
- magnet
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Abstract
The utility model relates to an electronic pressure switch, it includes casing (10), ejector pin (9) and wiring board assembly (2), wiring board assembly (2) are including hall switch and switch circuit hall switch, wiring board assembly (2) are supported and are leaned on on switch base (4), ejector pin (9) are located switch base (4), are equipped with between ejector pin (9) and switch base (4) return spring (8). The upper end outside of ejector pin (9) is equipped with magnet fixing base (6), is equipped with magnet (5) in magnet fixing base (6). Connector contact pin as pressure switch lets in normal voltage, and the line work who sets for is pressed to the circuit on wiring board assembly (2), and when magnet (5) was close to or keeps away from hall switch, hall switch opened or closes. The utility model discloses an it is fast that electronic pressure switch has a response time, there is not the contact in no mechanical contact and ablates and wear and tear, long service life. Dual output, output current advantage such as big.
Description
Technical field
The utility model relates to automobile electronic switch technical field, in particular to a kind of electronic pressure switch.
Background technology
Electronic switch of the prior art mostly adopts mechanical contact switch structure, and mechanical switch is the shortcoming of ablation contact and contact wear because of break-make repeatedly, also has that working life is short, the response time slow, lack the shortcomings such as fail safe.Follow-up developments non-contact type switch, but structure is comparatively complicated, and installation difficulty is large.
Such as Authorization Notice No. is the Chinese utility model patent of CN202534590U, it discloses a kind noncontacting switch, comprise hollow housing, the top of the left plate of housing is provided with a through hole, the lower left quarter of housing cavity room is provided with a back-up block, on the top of housing cavity room, switch shaft and spring are housed, the lower surface of switch shaft contacts with back-up block, the middle part of switch shaft is provided with a step, wherein the left part of switch shaft stretches out housing from through hole, its right side is provided with a counterbore, in this counterbore, magnet is housed, spring overcoat is at the right part of switch shaft, and one end of spring is arranged on the right side wall of housing, the other end is arranged on the right side of the step of switch shaft, lower right in housing is provided with circuit board, Hall element is welded above this circuit board, three wires of circuit board are drawn housing from the right lower quadrant of housing.But have counterbore in the switch shaft in this noncontacting switch for installing magnet, the installation of magnet all has certain difficulty with when taking out.
Utility model content
In order to solve the above-mentioned technological deficiency that prior art exists, the purpose of this utility model is to provide a kind of electronic pressure switch, magnet in electronic pressure switch of the present utility model is positioned at the top of push rod, there is response time fast, long working life, doubleway output, the advantages such as output current is large.
In order to realize above-mentioned purpose of design, the scheme that the utility model adopts is as follows:
A kind of electronic pressure switch, it comprises housing, push rod and circuit board module, and push rod and circuit board module are positioned at the inside of housing, and circuit board module is resisted against in switch pedestal; The outside, upper end of push rod is provided with magnet holder, is provided with magnet in magnet holder.It is fast that electronic pressure switch of the present utility model has the response time; Mechanical contacts, and there are not pitting of contact and wearing and tearing; Long working life; Doubleway output, the advantages such as output current is large.
Preferably, circuit board module comprises Hall switch and switching circuit.Hall switch, as electromagnetic sensor, has that precision is high, the linearity good, a characteristic of easy for installation, long service life, and Hall switch is connected with switching circuit, can replace original mechanical contact switch structure, be applied to automobile electronic switch, safe and reliable.
In above-mentioned either a program preferably, described switching circuit comprises triode, field effect transistor, the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the first diode, the second diode, the first voltage-stabiliser tube, the second voltage-stabiliser tube.
In above-mentioned either a program preferably, described field effect transistor, the first voltage-stabiliser tube, the second voltage-stabiliser tube, the first diode, the second diode connect and compose voltage stabilizing circuit.
In above-mentioned either a program preferably, described triode, the first resistance, the second resistance, the 3rd resistance, the 4th resistance connect and compose amplifying circuit; Input, the output of voltage stabilizing circuit and amplifying circuit and Hall switch are connected.
In above-mentioned either a program preferably, the Hall switch on described circuit board module is between switch pedestal and magnet.
In above-mentioned either a program preferably, described switch pedestal is positioned at the inside of housing, and both are provided with O-ring seals in contact site.
In above-mentioned either a program preferably, described push rod is positioned at switch pedestal, between push rod and switch pedestal, be provided with return spring.
In above-mentioned either a program preferably, the lower end abutment of described push rod is on steel ball.
In above-mentioned either a program preferably, described steel ball is positioned at the bottom of housing.
In above-mentioned either a program preferably, the top of described housing is provided with four pin connection protective caps.
In above-mentioned either a program preferably, the contact site of described four pin connection protective caps and housing is provided with sealing gasket.
The course of work of electronic pressure switch of the present utility model is: when the socket connector pin of pressure switch passes into normal voltage (nominal voltage DC24V), circuit on circuit board module is by the line work of setting, when magnet is close or away from Hall switch, Hall switch opens or closes.When the Hall switch of magnet on circuit board module, the circuit that the electronic components such as the triode on circuit board module, field effect transistor, resistance, diode are formed carries out work according to the signal of Hall switch.When push rod is by steel ball jack-up, return spring is in compressive state, and magnet is positioned at the top of Hall unit switch, and the magnetic field of magnet has an impact to Hall switch, and this electronic pressure switch is in open mode; When steel ball and push rod move downward, return spring is in elongation state, and magnet and Hall unit switch misplace, and the magnetic field of magnet does not have an impact to Hall switch, and this electronic pressure switch is in closed condition.
Accompanying drawing explanation
Fig. 1 is the cutaway view of the preferred embodiment according to electronic pressure switch of the present utility model.
Fig. 2 is the circuit diagram embodiment illustrated in fig. 1 according to electronic pressure switch of the present utility model.
Attached number in the figure:
Four pin joints 1, circuit board module 2, sealing gasket 3, switch pedestal 4, magnet 5, magnet holder 6, O-ring seals 7, return spring 8, push rod 9, housing 10, steel ball 11.
Embodiment
The following description is only exemplary and be not to limit the disclosure, application or purposes in essence.Be further described below in conjunction with the embodiment of Figure of description to the utility model electronic pressure switch.
As shown in Figure 1, according to the cutaway view of a preferred embodiment of electronic pressure switch of the present utility model.Electronic pressure switch of the present utility model, it comprises housing 10, push rod 9 and circuit board module 2, and push rod 9 and circuit board module 2 are positioned at the inside of housing 10, and circuit board module 2 is resisted against in switch pedestal 4; The outside, upper end of push rod 9 is provided with magnet holder 6, is provided with magnet 5 in magnet holder 6.It is fast that electronic pressure switch of the present utility model has the response time; Mechanical contacts, and there are not pitting of contact and wearing and tearing; Long working life; Doubleway output, the advantages such as output current is large.
In the present embodiment, described circuit board module 2 comprises Hall switch and switching circuit.Hall switch, as electromagnetic sensor, has that precision is high, the linearity good, a characteristic of easy for installation, long service life, and Hall switch is connected with switching circuit, can replace original mechanical contact switch structure, be applied to automobile electronic switch, safe and reliable.
In the present embodiment, the Hall switch on described circuit board module 2 is between switch pedestal 4 and magnet 5.
In the present embodiment, described switch pedestal 4 is positioned at the inside of housing 10, and both contacts site are provided with O-ring seals 7.
In the present embodiment, described push rod 9 is positioned at switch pedestal 4, is provided with return spring 8 between push rod 9 and switch pedestal 4.
In the present embodiment, the lower end abutment of described push rod 9 is on steel ball 11.
In the present embodiment, described steel ball 11 is positioned at the bottom of housing 10.
In the present embodiment, the top of described housing 10 is provided with four pin connection protective caps 1.
In the present embodiment, described four pin connection protective caps 1 are provided with sealing gasket 3 with the contact site of housing 10.
The course of work of electronic pressure switch of the present utility model is: when the socket connector pin of pressure switch passes into normal voltage (nominal voltage DC24V), circuit on circuit board module 2 is by the line work of setting, when magnet 5 is close or away from Hall switch, Hall switch opens or closes.When the Hall switch of magnet 5 on circuit board module 2, the circuit that the electronic components such as the triode on circuit board module 2, field effect transistor, resistance, diode are formed carries out work according to the signal of Hall switch.When push rod 9 is by steel ball 11 jack-up, return spring 8 is in compressive state, and magnet 5 is positioned at the top of Hall unit switch, and the magnetic field of magnet 5 has an impact to Hall switch, and this electronic pressure switch is in open mode; When steel ball 11 moves downward with push rod 9, return spring 8 is in elongation state, and magnet 5 misplaces with the first switch of Hall, and the magnetic field of magnet 5 does not have an impact to Hall switch, and this electronic pressure switch is in closed condition.
Next consult shown in Fig. 2, according to the circuit diagram embodiment illustrated in fig. 1 of electronic pressure switch of the present utility model.
In the present embodiment, described switching circuit comprises triode T, field effect transistor, the first resistance R1, the second resistance R2, the 3rd resistance R3, the 4th resistance R4, the first diode D1, the second diode D2, the first voltage-stabiliser tube ZD1, the second voltage-stabiliser tube ZD2.
In the present embodiment, described field effect transistor, the first voltage-stabiliser tube ZD1, the second voltage-stabiliser tube ZD2, the first diode D1, the second diode D2 connect and compose voltage stabilizing circuit.
There is the original paper of SDG tri-terminals referred to as field effect transistor.
In the present embodiment, described triode T, the first resistance R1, the second resistance R2, the 3rd resistance R3, the 4th resistance R4 connect and compose amplifying circuit; Input, the output of voltage stabilizing circuit and amplifying circuit and Hall switch are connected.
Switching circuit carries out work according to the signal of Hall switch, and magnet 5 mainly pushes having moved up and down of steel ball 11 according to external mandril 9 with the distance of Hall switch, and the return of steel ball 11 has been come by the return spring 8 of inside.Hall switch, as electromagnetic sensor, has that precision is high, the linearity good, a characteristic of easy for installation, long service life, and Hall switch is connected with switching circuit, can replace original mechanical contact switch structure, be applied to automobile electronic switch, safe and reliable.
This case is the application of the prior art of " Hall switch (operation principle) and switching circuit ", and it and the parts such as push rod 9, magnet holder 6 are formed electron pressure switch, so " switching circuit " inner element annexation is without the need to describing in detail.
It will be apparent to those skilled in the art that electronic pressure switch of the present utility model comprises the combination in any of each several part in this specification.As space is limited and in order to make specification simple and clear, these combinations are not introduced one by one in detail at this, but after having seen this specification, the scope of the present utility model that the combination in any of each several part be made up of this specification is formed is self-evident.
Claims (12)
1. an electronic pressure switch, it comprises housing (10), push rod (9) and circuit board module (2), push rod (9) and circuit board module (2) are positioned at the inside of housing (10), it is characterized in that: circuit board module (2) is resisted against in switch pedestal (4); The outside, upper end of push rod (9) is provided with magnet holder (6), is provided with magnet (5) in magnet holder (6).
2. electronic pressure switch as claimed in claim 1, is characterized in that: circuit board module (2) comprises Hall switch and switching circuit.
3. electronic pressure switch as claimed in claim 2, is characterized in that: switching circuit comprises triode (T), field effect transistor, the first resistance (R1), the second resistance (R2), the 3rd resistance (R3), the 4th resistance (R4), the first diode (D1), the second diode (D2), the first voltage-stabiliser tube (ZD1), the second voltage-stabiliser tube (ZD2).
4. electronic pressure switch as claimed in claim 3, is characterized in that: described field effect transistor, the first voltage-stabiliser tube (ZD1), the second voltage-stabiliser tube (ZD2), the first diode (D1), the second diode (D2) connect and compose voltage stabilizing circuit.
5. electronic pressure switch as claimed in claim 3, is characterized in that: triode (T), the first resistance (R1), the second resistance (R2), the 3rd resistance (R3), the 4th resistance (R4) connect and compose amplifying circuit; Input, the output of voltage stabilizing circuit and amplifying circuit and Hall switch are connected.
6. electronic pressure switch as claimed in claim 2, is characterized in that: the Hall switch on circuit board module (2) is positioned between switch pedestal (4) and magnet (5).
7. electronic pressure switch as claimed in claim 1, it is characterized in that: switch pedestal (4) is positioned at the inside of housing (10), both contacts site are provided with O-ring seals (7).
8. electronic pressure switch as claimed in claim 1, is characterized in that: push rod (9) is positioned at switch pedestal (4), is provided with return spring (8) between push rod (9) and switch pedestal (4).
9. the electronic pressure switch as described in claim 1 or 6, is characterized in that: the lower end abutment of push rod (9) is on steel ball (11).
10. electronic pressure switch as claimed in claim 9, is characterized in that: steel ball (11) is positioned at the bottom of housing (10).
11. electronic pressure switch as claimed in claim 1, is characterized in that: the top of housing (10) is provided with four pin connection protective caps (1).
12. electronic pressure switch as claimed in claim 11, is characterized in that: four pin connection protective caps (1) are provided with sealing gasket (3) with the contact site of housing (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521020044.7U CN205194616U (en) | 2015-12-10 | 2015-12-10 | Electronic pressure switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521020044.7U CN205194616U (en) | 2015-12-10 | 2015-12-10 | Electronic pressure switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205194616U true CN205194616U (en) | 2016-04-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521020044.7U Active CN205194616U (en) | 2015-12-10 | 2015-12-10 | Electronic pressure switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205194616U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106128820A (en) * | 2016-07-04 | 2016-11-16 | 贵州航天控制技术有限公司 | A kind of non-contact type Hall electromagnetic position detection device |
| CN111584290A (en) * | 2020-06-11 | 2020-08-25 | 深圳市小龙电器有限公司 | Two-axis operating rod based on Hall sensor |
-
2015
- 2015-12-10 CN CN201521020044.7U patent/CN205194616U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106128820A (en) * | 2016-07-04 | 2016-11-16 | 贵州航天控制技术有限公司 | A kind of non-contact type Hall electromagnetic position detection device |
| CN106128820B (en) * | 2016-07-04 | 2018-05-15 | 贵州航天控制技术有限公司 | A kind of non-contact type Hall electromagnetic position detection device |
| CN111584290A (en) * | 2020-06-11 | 2020-08-25 | 深圳市小龙电器有限公司 | Two-axis operating rod based on Hall sensor |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |