CN2292281Y

CN2292281Y - Temp. sensor for vehicle engine

Info

Publication number: CN2292281Y
Application number: CN 97202816
Authority: CN
Inventors: 江全金
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-03-31
Filing date: 1997-03-31
Publication date: 1998-09-23
Anticipated expiration: 2007-03-31

Abstract

The utility model discloses an improved inductor for the temperature of vehicle engine, which is mainly adopts the titanium alloy elastic element which has shape memory function on the structure of an action copper shaft. One end of the elastic element is butted on the inner end surface of a push ring rod, and the other end of the elastic element is sheathed in the contain piece concave hole which is in a fastener ring. The inductor has simple structure, reduced combined program, stable and accurate action, reduced manufacture cost and prolonged service life. The utility model is an inductor for vehicle engine temperature and has great application value.

Description

The temperature inductor of car engine

The utility model is a kind of temperature inductor of car engine.

The temperature inductor of car engine is established for cutting off the starting cold oil circuit.The temperature inductor of known car engine, as shown in Figure 1, by main body 11, positive and negative power lead 12, compositions such as PTC garden plate 13, effect copper axle 14, the cover axle collar 15 and protecgulum 16.Main body 11 is an inner hollow square pedestal, establish thread segment 111 in the long right-angle side part, short right-angle side partly is provided with the positive-negative power line 12 that links conducting strip 121 for terminal, and PTC garden plate is the positive temperature electronic ceramics plate with linking effect that is placed on the centre of two electric sheets 121.Effect copper axle 14, internal cohesion flexible member 149, the outer end fit cover axle collar 15, and be positioned over the copper member of main body 11 inside, it can be by the temperature after the energising of PTC garden plate 13 sensing conducting strips, and then the pushes against sleeve axle collar 15 moves to evagination, end links a cover burr 151 outside this cover axle collar 15, this cover burr and cover axle collar front end intermediate sleeve unification flexible member 152, the oil resistance bar 153 of this flexible member and evagination cover burr 151 connects to one. and protecgulum 16 is combined into the U-shaped body with the axle collar 15 and main body 11, establish a flexible member 161 between the protecgulum and the axle collar, when this flexible member 161 stops in conducting strip 121 heat conduction, suitably pass the cover axle collar and reset.

Wherein act on copper axle 14 and have the compositions such as type axle 141, throw-out collar bar 142, rubber diaphragm 143 and T shape ring 144 that are horizontally set with.As shown in Figure 2, type axle 141 is the nested oil sealing 140 of outer shroud, and inside is provided with the hollow axis body that holds grease chamber 1411 and hold bar hole 1412, and holding the grease chamber can put for semi liquid state lubricating oil 1413, holding the bar hole can pass for throw-out collar bar 142, and the outer shroud of throw-out collar bar inner segment is nested with oil sealing 1421.Rubber diaphragm 143 is to be embedded at the flexible lamellar body that holds 1411 outer ends, grease chamber, and cover the inboard openend that is combined in T shape ring 144, and being provided with in the T shape ring and holding cured chamber 1441, it is a kind of hollow ring cavity, and be fixed in the outside of the appearance grease chamber of type axle, holding cured chamber can put for induction cured 1442.

From the temperature detector of the known car engine of foregoing description, there are many shortcomings as can be seen in the situation that particularly acts on the copper axle, can reduce following some:

1. the induced inside of effect copper axle is cured quantitatively still an error, will cause the displacement stroke of throw-out collar bar to be consistent;

2. the semi liquid state lubricating oil use of effect copper axle inside is of a specified duration can harden, and can cause responding to cured bulging force after this lubricating oil sclerosis can't transmit really, and the passing of throw-out collar bar also can't be accurate;

3. act on the inner outer shroud of throw-out collar bar that copper axle front end wears, be embedded one and prevent that the oil sealing Chang Yurong bar hole internal diameter of semi liquid state lubricating oil outflow from rubbing and loss, damages and influence the serviceable life of copper axle easily;

4. effect copper axle internals is a lot of, respond to cured and injecting program semi liquid state lubricating oil tediously long, volume is difficult for grasp, cost of labor is very high, and yield rate is not high;

5. rubber diaphragm is easily aging, the transmission of the bulging force that the influence induction is cured.Because the deficiency of the temperature inductor of above-mentioned known vehicle engine, particularly act on many shortcomings of copper axle, the utility model then painstakingly makes improvements design, and is accurate with the action that the realization effect copper axle pushes against sleeve axle collar is outside, reach long service life, the effect that failure rate is low.

The purpose of this utility model is to provide a kind of temperature inductor of car engine of the simplifying of structure at effect copper axle.But be characterized in acting on the inner flexible member temperature sensor that adopts the titanium alloy moulding of copper axle itself, and the function of shape memory is arranged, meet when this flexible member and must change stretching, extension when hot, and then the displacement of interlock throw-out collar bar is outside.

The another one purpose is that the titanium alloy elastic element in the effect copper axle replaces that induction in the known temperature inductor is cured, the lubricating oil of rubber diaphragm and semi liquid state, and assembly is significantly reduced, and the reduction combinator makes it more to meet industrial application requirements.

The purpose of this utility model is achieved in that

A kind of temperature inductor of car engine is made up of members such as main body, positive and negative power supply line, PTC garden plate, effect copper axle, the cover axle collar and protecgulums, and it is characterized in that acting on the copper axle is to be made of type axle, throw-out collar bar, flexible member and firmware ring etc.; The type axle is that an inside is provided with pole perforating hole and holds the hollow copper structure of tube body of bar chamber; The throw-out collar bar is that front end passes pole perforating hole, and terminal embedding is dissolved in the T font body of rod of passing of bar chamber interior; Flexible member is by the titanium alloy moulding, but temperature sensor and anamorphic stretching has the compressible member of shape memory function; This flexible member one end is fastened on the inner face of throw-out collar bar; The firmware ring is the copper ring body of T type hollow that cover is fixed in the hollow type axle outside, and its inside is provided with one and holds the part shrinkage pool, and is solid for the other end cover of elasticity element.

Architectural feature of the present utility model and technology contents are further illustrated in description below by drawings and Examples.

Fig. 1 is the member wiring layout of known car engine temperature inductor.

Fig. 2 is the effect copper axial section of known inductor.

Fig. 3 is the effect copper axial section of car engine temperature inductor of the present utility model.

Fig. 4 is an effect copper axle action synoptic diagram of the present utility model.

From as can be known shown in Figure 3, effect copper axle 2 has type axle 21, throw-out collar bar 22, flexible member 23 and firmware ring 24 and forms.Type axle 21 is that inside is provided with pole perforating hole 211 and holds the hollow copper tectosome of bar chamber 212.Throw-out collar bar 22 passes pole perforating hole 211 for front end, and end is embedded at the T type body of rod that holds 212 inside, bar chamber.Flexible member is that titanium alloy is made, but is the compression element of temperature sensor anamorphic stretching, has the function of shape memory, and the one end is fastened on the inner face of throw-out collar bar 22.Firmware ring 24 is the copper ring body of T shape hollow that cover is fixed in hollow type axle 21 outsides, and its inside is established one and held part shrinkage pool 241, and this holds part shrinkage pool and can overlap solid for the other end of elasticity original paper 23.

The utility model that Fig. 4 represents uses the action synoptic diagram when implementing.When the car engine starting, the both positive and negative polarity conducting of power supply, electric heating is via PTC plate guiding firmware ring 24, and the flexible member 23 that is positioned at the firmware ring will be responded to the temperature of firmware ring 24 and produce the effect that distortion is stretched, and oppress throw-out collar bar 22 to outer displacement, thereby interlock throw-out collar bar 22 outwards protrudes out.Stop when car engine turns round, the both positive and negative polarity of power lead opens circuit, the then no longer heat conduction of PTC garden plate, and flexible member is pressed shape memory characteristic withdrawal origin-location, and the throw-out collar bar is also got back to the origin-location.

In sum, the utlity model has following advantage:

1. the structure innovation of effect copper axle can be passed the throw-out collar bar outwards quickly and accurately, can stop to pass row The shortcoming of Cheng Buyi.

2. improved known product and used the with the passing of time disadvantage of hardening effect expansive force of semi liquid state lubricating oil, made apparatus The titanium alloy elastic element that shape-memory properties is arranged, action quick and precisely.

3. use flexible member to replace the components such as the induction that known product uses is cured, rubber membrane, simplified structure Part has been saved combinator and operating time, manpower.

4. because designs simplification. assembly reduces, and has improved the yield rate of product, has reduced cost, has promoted product The progress of industry.

5. use to have shape memory function titanium alloy elastic element, prolonged product serviceable life greatly.

This shows to the utlity model has outstanding technical progress characteristics and significant social practical value to have and promote scape before.

Claims

1. the temperature inductor of a car engine is made up of members such as main body, positive and negative power supply line, PTC garden plate, effect copper axle, the cover axle collar and protecgulums, and it is characterized in that acting on the copper axle is to be made of type axle, throw-out collar bar, flexible member and firmware ring etc.; The type axle is that an inside is provided with pole perforating hole and holds the hollow copper structure of tube body of bar chamber; The throw-out collar bar is that front end passes pole perforating hole, and terminal embedding is dissolved in the T font body of rod of passing of bar chamber interior; Flexible member is by the titanium alloy moulding, but temperature sensor and anamorphic stretching has the compressible member of shape memory function; This flexible member one end is fastened on the inner face of throw-out collar bar; The firmware ring is the copper ring body of T type hollow that cover is fixed in the hollow type axle outside, and its inside is provided with one and holds the part shrinkage pool, and is solid for the other end cover of elasticity element.