CN2898798Y

CN2898798Y - Pressure sensing alarming device of motor vehicle

Info

Publication number: CN2898798Y
Application number: CN 200620095175
Authority: CN
Inventors: 梁家刚; 陆晓斌
Original assignee: XINWEILAI SCIENCE AND TECHNOLOGY Co Ltd WUHAN
Priority date: 2006-01-25
Filing date: 2006-01-25
Publication date: 2007-05-09
Anticipated expiration: 2016-01-25

Abstract

The utility model relates to a pressure sensing alarming device of motor vehicle, in particular to a sensor which signal transforms the parameters of engine oil pressure and brake pneumatic pressure into electrical signals and transmits the electrical signals to the secondary meters and the indicator lights, which comprises an elastic component, a pressure chamber, a strut mechanism, a swing and reset mechanism and a signal transformation unit. The pressure chamber is consisted of a bottom case, a diaphragm, a pushing out ring; the elastic component is consisted of a staying block, a riveting core, a spring leaf and a jogging core; the strut mechanism is consisted of a holder cover and a bear frame; the swing and reset mechanism is consisted of a screw, a swing flame, a contact sheet and a tension spring; the signal transformation unit is consisted of a sliding resistor and an alarming electrode on the contact sheet and a magnetic sheet. When the utility model is in used, the pressure media enters into the pressure chamber, the swing flame and the contact sheet are swung under the influence of pressure, each group of contact points on the contact sheet respectively contact the sliding resistor and the alarming electrode on the magnetic sheet, then the resistance signals and alarm switch signals are respectively transmitted to the secondary meters and the alarming indicator lights. The utility model has the advantages of simple structure, low production cost, high reliability, wide measuring range, easy series-forming.

Description

Motor vehicle pressure sensing alarm

Technical field

The utility model relates to a kind of engine oil pressure of vehicle motor and sensor of brake pressure of being used for.

Background technology

In the existing like product types such as Convoluted diaphragm-type, pressure spring formula are arranged, Convoluted diaphragm-type, diaphragm cost height, return difference are big, complicated integral structure, technology is loaded down with trivial details, causes its cost height, poor performance; The pressure spring formula, the structure more complicated, poor heat stability, reliability is lower.Now design " a kind of oil pressure alarm device for gasoline engine " (patent No. 01144918), form by pressure transducer, hummer, protective tube, ignition switch, direct supply, pressure transducer is installed on the oil duct of camshaft, increase hummer, and protective tube, ignition switch, the direct supply in it and the car is connected in series." pressure sensing alarm " (patent No. 02228298.X), flexible material are encapsulant, form the pressure chamber that seals with integrated pedestal.The flexible material upper fixed is measured and is used flexible member, and the end that flexible material promotes leverage slides in the plane, drives the other end and rotates on slide wire resistor, reads resistance value from slide wire resistor." a kind of engine oil pressure sensor alarm " (patent No. 03235106.2), cover plate in the pressure chamber links to each other with the shell of working chamber, and the driving gear that thimble in the pressure chamber passes the pair of engaged gears in spring reset sheet, spacing dividing plate and the working chamber that links to each other with cover plate in the pressure chamber of the bucker in the working chamber links to each other." transverse-brush engine oil pressure sensor alarm " (patent No. 03241129.4), the rotating shaft of rocker arm assembly links to each other with contact chip, and the joint pin that covers on line plate and the pressure chamber links to each other.

Summary of the invention

The purpose of this utility model is at above-mentioned present situation, aim to provide a kind of simple in structure, production cost is low, reliability is high, range ability is wide, is easy to the motor vehicle pressure sensing alarm of seriation.

The implementation of the utility model purpose is, motor vehicle pressure sensing alarm, riveted joint has the riveting core 12 of reed 8 and plunger tip 5 to be injection-moulded in support seat 11 middle parts, diaphragm 10, pushing out ring 9, support seat 11, flap 6 is positioned at the big stomidium of base 13, handle is riveted together,

base

13,10 on diaphragm constitutes pressure chamber 18, with contact 2 rivetings on rocker 17, screw 16 is contained on the rocker 17, rocker 17 is connected by the hole on self boss and the flap 6, support 3 welds or is riveted on the flap 6, two lead-in wires 14 are welded in respectively on the slide wire resistance and warning pole piece of magnetic sheet 1, magnetic sheet 1 inserts in the card base of support 3, and the other end of two lead-in wires 14 is welded in respectively on two binding posts at outer cover top, and the two ends of extension spring 4 are hung on support 3 and the rocker 17.

When using the utility model, pressure medium enters pressure chamber, under the effect of pressure, and rocker and contact swing, each group contact on the contact contacts slide wire resistance and the warning electrode on the magnetic sheet respectively, gives secondary instrument and alarm lamp respectively with resistance signal and alarm switch signal again.

The utility model is simple in structure, and production cost is low, the reliability height, and range ability is wide, is easy to seriation.

Description of drawings

Fig. 1 is the utility model structural front view

Fig. 2 is the utility model structure side view

Fig. 3 is the contact structural representation

Fig. 4 is rocker structure master, side view

Fig. 5 is the understructure synoptic diagram

Fig. 6 is the reed structure synoptic diagram

Fig. 7 is the diaphragm structure synoptic diagram

Embodiment

With reference to Fig. 1,2, the utility model is made up of elastic parts, pressure chamber, supporting mechanism, swing and resetting-mechanism and conversion of signals.Pressure chamber is made up of base 13, diaphragm 9, pushing out ring 9, elastic parts is made up of support seat 10, riveting core 11, reed 7, plunger tip 12, supporting mechanism is made up of flap 5, support 3, swing and resetting-mechanism are made up of screw 16, rocker 17, contact 2 and extension spring 4, and conversion of signals is made up of slide wire resistance on contact 2 and the magnetic sheet 1 and warning electrode.

Thick 0.15～the 1.5mm of diaphragm adopts elastomeric material to make the reciprocal burst inside diameter of diaphragm 10～50mm; Diaphragm adopts the canvas filler rubber material to make.

Reed has one to three, and every thick 0.1～2mm adopts spring steel, stainless steel or beryllium-bronze material to make; Thick 0.05～the 0.3mm of contact adopts spring steel, stainless steel, beryllium-bronze or brass material to make.

With reference to Fig. 3,4,5, during assembling, behind the hole 19 that the boss 21 of rocker 17 inserts on the contact 2, boss 21 is flattened riveted joint.The boss 20 of rocker 17 inserts in the hole 23 on the flaps 6, will turn over tongue 22 to rocker 17 direction bendings on the flap 6, to 17 non-return positioning actions of rocker.

With reference to Fig. 6, reed 8 is anistree star.With reference to Fig. 7, support seat 11 middle parts are recessed, and riveting core 12 is injection-moulded in support seat 11 middle part recesses.

When using the utility model, pressure medium enters pressure chamber 18 by the center pit of base 13, under the effect of pressure, support seat 11 overcomes reed 8 elastic force and moves upward, promote rocker 17 and contact 2 swings by plunger tip 5 and screw 16, four contacts are arranged on the contact, one group of per two contact, be contacted with respectively on the slide wire resistance and warning electrode on the magnetic sheet, slide wire resistance and warning electrode are connected to two binding posts of outer cover upper end, the direct conducting of contact and base (common port) again respectively by lead-in wire.By two binding posts and base (common port) resistance signal and alarm switch signal are flowed to secondary instrument and alarm lamp respectively like this.Pressure in the pressure chamber is big more, and the pivot angle of contact is just big more, and the resistance of slide wire resistance is respective change also, and secondary instrument shows corresponding indicating value.When the pressure in the pressure chamber hangs down to certain value, contact and warning electrode conduction, alarm lamp is bright.

Claims

1, motor vehicle pressure sensing alarm, it is characterized in that riveted joint has the riveting core (12) of reed (8) and plunger tip (5) to be injection-moulded in support seat (11) middle part, diaphragm (10), pushing out ring (9), support seat (11), flap (6) is positioned at the big stomidium of base (13), and be riveted together, base (13), constitute pressure chamber (18) between diaphragm (10), with contact (2) riveting on rocker (17), screw (16) is contained on the rocker (17), rocker (17) is connected by the hole on self boss and the flap (6), support (3) welds or is riveted on the flap (6), two lead-in wires (14) are welded in respectively on the slide wire resistance and warning pole piece of magnetic sheet (1), magnetic sheet (1) inserts in the card base of support (3), the other end of two lead-in wires (14) is welded in respectively on two binding posts at outer cover top, and the two ends of extension spring (4) are hung on support (3) and the rocker (17).

2, motor vehicle pressure sensing alarm according to claim 1, the hole (19) of its feature on boss (21) insertion contact (2), riveted joint.

3, motor vehicle pressure sensing alarm according to claim 1, the boss (20) that it is characterized in that rocker (17) insert in the hole (23) on the flap (6), will turn over tongue (22) to rocker (17) direction bending on the flap (6).

4, motor vehicle pressure sensing alarm according to claim 1 is characterized in that the thick 0.15～1.5mm of diaphragm (10), the reciprocal burst inside diameter of diaphragm 10～50mm.

5,, it is characterized in that diaphragm (10) adopts the canvas filler rubber material according to claim 1 or 4 described motor vehicle pressure sensing alarms.

6, motor vehicle pressure sensing alarm according to claim 1 is characterized in that reed (8) is anistree star, has one to three, every thick 0.1～2mm.

7, motor vehicle pressure sensing alarm according to claim 1 is characterized in that the thick 0.05～0.3mm of contact (2).