CN102705062A - Electric control type thermosistor - Google Patents

Abstract

The invention relates to an electric control type thermosistor which is provided with a cavity with two ports. A plug for connecting a lead is arranged at one side of the cavity; a heated pushing mechanism with a valve and a push rod is arranged on the cavity, the outer end of the push rod of the heated pushing mechanism is fixedly arranged on the cavity; a heater is arranged inside the end of the push rod positioned in the heated pushing mechanism; and the lead connected with the heater passes through an inner hole of the push rod and is connected with the plug. The electric control type thermosistor has the beneficial effects that the lead breakage power failure can be avoided, the wax leakage is avoided, the water resistance is reduced during the use, and the sensitivity is high.

Description

The electric-controlled type thermoregulator

Technical field

The present invention relates to a kind of electric-controlled type thermoregulator, be used for the loop control of explosive motor cooling water.

Background technique

Electric-controlled type thermoregulator application prospect is very extensive; The electric-controlled type thermoregulator mainly is made up of cavity, plug, lead-in wire, heater, sleeve, body, paraffin, rubber pipe, push rod, spring, valve, gland, caudal peduncle, auxiliary spring, auxiliary-valve at present; Machining hole on body; Through the hole heater is put into body, and be fixed on the body bottom; Heater extends body through lead-in wire and is connected with extraneous plug; Push rod is in bore portion cover rubber pipe in the body, and body exterior has sleeve, and whole heating unit is fixed on the cavity through sleeve.Switch on to heater through plug, heater heats paraffin lets the paraffin expanded by heating produce expansive force; Expansive force extruding rubber pipe, rubber pipe is pressure-ram again, impels push rod to produce thrust and motion; Push rod promotes the caudal peduncle motion, caudal peduncle interlock valve motion, thus realize valve opening.After thermostat outage, heater no longer adds heated paraffin, paraffin contractions of catching a cold, and expansive force disappears, the corresponding disappearance of push rod thrust, and spring reaction impels the valve returning movement on valve, thus the realization valve closing.This structure in use because heater is through behind machining hole on the body, putting into body, under the expansive force effect of paraffin high pressure, the phenomenon of heater and body contacting point leakage paraffin occurs; Because lead-in wire is embedded in the frequent extruding and the relexation of contact paraffin high pressure expansive force in the body, thereby cause the outage of fractureing property of lead-in wire.Because heater need put into body interior, in order to ensure the space requirement of paraffin body is strengthened, thereby body dimension is bigger, finally causes the thermoregulator volume excessive; Because heater is fixed on the body bottom; Thereby causing heating source is to be fixed on the body bottom can not move, and when adding heated paraffin, paraffin can only lean on the transmission of heat of nature slowly to be melted to the top from the bottom; Cause paraffin thawing speed slower, and make the sensitivity of thermoregulator low; Because body can not move, and can not directly connect valve, can only connect valve through accessory structures such as sleeves; Realize valve opening; Make that the additional structure partial volume is excessive around the body, when causing cooling water flow to cross thermoregulator, water resistance is big; Reduced the thermoregulator flow, the cooling effect of motor is poor.

Summary of the invention

The purpose of this invention is to provide a kind of electric-controlled type thermoregulator, overcome leakage wax that existing structure exists, the outage of fractureing property of lead-in wire, bulk volume is excessive, sensitivity is low, water resistance is big problem.

The objective of the invention is to realize as follows: a cavity that has two-port is arranged; Cavity one side is provided for connecting the plug of lead; Device has the pushing mechanism that is heated of valve and push rod on cavity; The be heated push rod outer end of pushing mechanism is fixed on the cavity, and push rod is in that end interior arrangement heater in the pushing mechanism that is heated, and has the lead that is connected with heater to pass the push rod endoporus and is connected to plug.

The structure of pushing mechanism of being heated is: a body that has blind hole is arranged; Be inserted with push rod in the endoporus of body, the push rod the other end stretches out in body exterior, is with the seal ring with the body open end sealing on the push rod; The body open end riveted joint fastens the gland of seal ring; Fill with paraffin by the body endoporus of seal ring sealing and the enclosed space between the push rod, the valve of riveted joint and the corresponding sealing of cavity port is with an end and is pressed in the spring on the valve on the body on gland; The other end of spring be supported on to body guiding and with the fixing support of cavity on, the body tail end is with the auxiliary-valve of auxiliary spring and axial limiting anticreep.

Give the energising of the heater in the push rod through plug, heater heats paraffin lets the paraffin expanded by heating produce expansive force; The direct pressure-ram of expansive force produces the thrust of the relative body of push rod; Because push rod and cavity are fixed, thrust promotes body and moves together with valve, thereby realizes valve opening.After thermoregulator outage, heater no longer adds heated paraffin, paraffin contractions of catching a cold, and expansive force disappears, the corresponding disappearance of push rod thrust, spring reaction impels the valve returning movement on valve, thus the realization valve closing.Through heater being put into the integrity that push rod keeps body, thereby eliminated under the effect of paraffin high pressure expansive force the problem of leaking wax from body.Heater is imbedded push rod inside and is not directly contacted paraffin, thereby has eliminated lead-in wire by the frequent extruding of paraffin high pressure expansive force and relexation and the problem of fractureing property outage.Because heater is in push rod, does not take the space of paraffin, need not to increase body structure, thereby has solved the excessive problem of thermoregulator volume.Because heater is inner at push rod, pushrod movement drives in the process of valve motion, and heating source moves with push rod, thereby can realize paraffin thawings of comprehensively being heated, and makes the heating paraffin conduction soon, and thermoregulator is highly sensitive.Because valve is directly to be connected with body, need not other additional structure, it is less to take up room, and water resistance is little, good cooling results.

The present invention imbeds push rod inside with heater, has eliminated heater lead by the environment of high-pressure extrusion, avoids the outage of fractureing property of lead-in wire; Guarantee the body complete structure, avoided the wax leakage; Body dimension does not increase, and body directly connects valve and eliminates other additional structure, thereby the volume that reduces thermoregulator has reduced water resistance; Because heater is put into push rod, is heated in the melting process at paraffin, heating source moves heating, and the heating paraffin conduction is fast, thereby has improved sensitivity.

Description of drawings

Fig. 1 is a structural representation of the present invention.

Embodiment

With reference to Fig. 1, a cavity 1 that has two-port is arranged, cavity 1 one sides are provided for connecting the plug 2 of lead 3; Device has the pushing mechanism that is heated of valve 7 and push rod 4 on cavity 1; The pushing mechanism that is heated has a body 8 that has blind hole, is inserted with push rod 4 in the endoporus of body 8, and push rod 4 the other ends stretch out in body 8 outsides; Be with seal ring 6 on the push rod 4 with the sealing of body 8 opening ends; The riveted joint of body 8 opening ends fastens the gland 5 of seal ring 6, fills with paraffin 9 by body 8 endoporus of seal ring 6 sealings and the enclosed space between the push rod 4, on gland 5, rivets the valve 7 with the corresponding sealing of cavity 8 ports; Be with an end on the body 8 and be pressed in the spring 10 on the valve 7; The other end of spring 10 be supported on to body 8 guiding and with the fixing support 12 of cavity 1 on, body 8 tail ends are with the auxiliary-valve 14 of auxiliary spring 13 and axial limiting anticreep, push rod 4 outer ends of the pushing mechanism that is heated are fixed on the cavity 1; Push rod 4 is in that end interior arrangement heater 11 in the pushing mechanism that is heated, and has the lead 3 that is connected with heater 11 to pass push rod 4 endoporus and is connected to plug 2.The thermoregulator working method is the opening and closing through valve 7, realizes the regulation and control of coolant rate size.When needing valve 7 to open, give heater 11, the paraffin 9 in heater 11 heater bodies 8 through plug 2 energisings; Paraffin 9 is heated and melts and the generation expansive force, and expansive force promotes relative movement between push rod 4, the body 8, because push rod 4 is fixing with cavity 1; Impel body 8 to move relative to push rod 4; Drive heater 11 moves together in the time of motion, thereby further promotes the heating and melting speed of paraffin 9, and final push rod 4 promotes bodies 8 fast together with valve 7 opening movements.When outage, heater 11 stops heating, paraffin 9 contractions of catching a cold, and expansive force disappears, the corresponding disappearance of push rod 4 thrusts, spring 10 reacts on valve 7, and valve 7 is resetted, realization valve 7 closing movements.

Claims (2)

1. electric-controlled type thermoregulator; A cavity that has two-port is arranged; Cavity one side is provided for connecting the plug of lead, and device has the pushing mechanism that is heated of valve and push rod on cavity, it is characterized in that: the push rod of the pushing mechanism that is heated (4) outer end is fixed on the cavity (1); Push rod (4) is in that end interior arrangement heater (11) in the pushing mechanism that is heated, and has the lead (3) that is connected with heater (11) to pass push rod (4) endoporus and is connected to plug (2).

2. electric-controlled type thermoregulator according to claim 1; It is characterized in that: the pushing mechanism that is heated has a body (8) that has blind hole; Be inserted with push rod (4) in the endoporus of body (8); Push rod (4) the other end stretches out in body (8) outside; Be with the seal ring (6) that seals with body (8) opening end on the push rod (4), the riveted joint of body (8) opening end fastens the gland (5) of seal ring (6), fills with paraffin (9) by body (8) endoporus of seal ring (6) sealing and the enclosed space between the push rod (4); Go up the valve (7) of riveting with the corresponding sealing of cavity (8) port at gland (5); Be with an end on the body (8) and be pressed in the spring (10) on the valve (7), the other end of spring (10) be supported on to body (8) guiding and with the fixing support (12) of cavity (1) on, body (8) tail end is with the auxiliary-valve (14) of auxiliary spring (13) and axial limiting anticreep.

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