CN207945010U - A kind of energy-saving fan clutch - Google Patents

Abstract

The utility model discloses a kind of energy-saving fan clutches, its structure includes driving disc spacing pressing, driving disc spacing pressing is equipped with annular shoe cream room and work nest, driving disc spacing pressing is equipped with connection shoe cream room and work nest goes out oil hole and oil return through-hole, go out on the fuel-displaced aperture of oil hole and the oil return aperture of oil return through-hole and be provided with capping, capping includes centrifugal action part and return springs.When engine is in parking, capping can block aperture, so that silicone oil will not drain in work nest, substantially prevent parking after silicone oil from shoe cream room drain to the cold start that work nest region is brought after clutch engagement drive fan rotation it is unnecessary to engine radiating the problem of, so that engine normally cold vehicle preheating, cold vehicle abrasion can be reduced, while reducing the energy consumption of engine entirety.

Description

A kind of energy-saving fan clutch

Technical field

The utility model is related to Clutch Technology fields, and in particular to a kind of electric-controlled silicon oil clutch.

Background technology

The clutch that automotive field uses includes mainly that slip clutch, fluid coupling and electromagnetic clutch are several, And wherein silicon oil clutch, because it has the function of Flexible Transmission, can be run as one kind in fluid coupling in engine In change output torque and output rotating speed by adjusting the filling amount of clutch working chamber, slow down impact and the isolation work(such as torsional oscillation Can, and it is widely used in automotive field.However, being shown using silicon oil clutch at present on the market according to related research data The radiator fan that device drives causes the 5%-10% that the energy consumption accounting on automobile engine heat radiation always consumes energy, actually in automobile It does not need to radiate to engine under the most of the time of engine work and operating mode, such as in cold snap or cold When vehicle just starts.Therefore, how to realize that silicon oil clutch efficiently controls working machine and runs under proper condition, to reduce energy It consumes, ensure that radiator fan just brings into operation in the case where only needing work, it is urgently to be resolved hurrily to become those skilled in the art Technical problem.

The general work principle of electric-controlled silicon oil clutch is：Engine connects the driving disc spacing pressing in clutch, drives driving disc spacing pressing With engine rotation, after valve block authorities pwm pulse open signal, valve block open connection shoe cream room and work nest it is fuel-displaced Aperture, silicone oil in shoe cream room in driving disc spacing pressing will enter at work nest via going out oil hole under the influence of centrifugal force, Since the viscosity of silicone oil is larger, the viscous shear of silicone oil promotes clutch driving plate to pass through the front shroud of silicone oil drive clutch Active disc spins are followed with back casing, and then drive the fan rotation being fixed on back casing；Silicone oil at the maze trough of working chamber More, the torque that clutch transmits is bigger, and the slippage of clutch is also smaller, and the rotating speed of respective fans is also higher, and air quantity increases；When After valve block authorities pwm pulse shutdown signal, valve block closes fuel-displaced aperture, and the silicone oil in accumulator does not enter back into work nest Place works at the same time the silicone oil at slot and but flows back into shoe cream room by drainback passage under the action of the centrifugal force, at such work nest Silicone oil is reduced, and the torque that clutch transmits becomes smaller, and slippage increases, and rotation speed of the fan reduces, and air quantity reduces.

Usually, when engine is in dead ship condition, the fuel-displaced aperture of electric-controlled silicon oil clutch shoe cream room is generally opened Put state because in this way setting can ensure when vehicle circuit system just in case break down there is no electric power when, electric-controlled parts are not Work, but silicone oil goes out oil hole and is open, and silicone oil is in running order, ensures fan high speed rotation to cool down engine；This When silicone oil the lower part of shoe cream room is in due to gravity, and if fuel-displaced aperture is just also at the lower part of shoe cream room, oil storage The silicone oil of chamber can be by fuel-displaced aperture and going out oil hole from the work nest that shoe cream room flows to clutch, when engine cold start Afterwards, it is not necessarily to the cooling engine of fan rotation at this time, but the silicone oil that parking drains in work nest makes clutch is in drive wind High-speed rotating working condition, the i.e. smaller high meshing state of slippage are fanned, in addition when cold start, engine speed is not high, The rotating speed of corresponding clutch driving plate is also relatively low, the silicone oil oil return adynamia being located in clutch work nest, recirculating oil quantity Less, so, the parking oil leak not only energy of consumption of engine for no reason, more important is radiate to the unnecessary cold vehicle of engine The duration that engine normally preheats is increased, and then increases and cooling vehicle is started to wear away, energy is consumed for no reason, increases vehicle Energy consumption, engine prewarming time lengthening also seriously affect the working performance of engine.

So the clutch between engine and radiator fan is preferably devised to leak from shoe cream room to work nest when parking The structure of oil, the clutch of such performance is the target that automobile industry is pursued always in other words.

On July 11st, 2016 is announced entitled：A kind of new electronic control silicon oil clutch, application publication number are The utility application of CN205876473U shortens clutch in order to reduce the parking Leakage of clutch in the patent Device engages and the response time of separation, by being provided with stifled oily boss at the first oil outlet, prevent silicone oil by gravity and Working chamber is flowed into, allows silicone oil is as much as possible to rest in shoe cream room, improves silicon-oil fan cold starting performance and its reliability, carries The rotating speed controllability and responding ability of high clutch.The operation principle of the patent formula is：The first oil outlet is just as when parking Bottom in shoe cream room, shoe cream room also have the silicone oil of substantially half since the presence of stifled oily boss can not go out by first Oilhole leaks into the working chamber of clutch, when partly solving the problems, such as cold start.

But the stifled oily boss being arranged in the patent formula will artificially block among shoe cream room, can hinder silicone oil in shoe cream room Centrifugation rotation, and then work normally when shoe cream room in silicone oil cannot well by its rotate centrifugal force and export to clutch It in the work nest of device, in normal operation, is obstructed into the silicone oil amount in working chamber so that entire clutch performance drop It is low, including the torque of transmission is smaller, the slippage of clutch is larger, and the rotating speed of respective fans is not also high, and air quantity is also smaller, to right Engine cannot reach effective cooling and adjust.

In addition, the patent formula can not also prevent the silicone oil of shoe cream room when parking from draining in work nest, it is only the reduction of number Amount so that after engine start, clutch is few due to leaking out silicone oil, is in semi-engagement state, but also increase engine Energy consumption can not overcome the cold vehicle of engine to wear away completely.

Utility model content

The purpose of the utility model is to overcome the deficiencies in the prior art, provide one kind in cold start or weather is cold The silicon oil clutch that can prevent silicone oil from leaking into work nest, effectively reducing cold vehicle abrasion, reduce automobile entirety energy consumption when cold substantially.

A kind of energy-saving fan clutch of the utility model, technical solution are：

A kind of energy-saving fan clutch, including driving shaft, the driving disc spacing pressing being connected with driving shaft, valve block mechanism and master The matched protecgulum of Moving plate and housing assembly；Driving disc spacing pressing is equipped with annular shoe cream room and work nest, work nest are looped around shoe cream room Outside；Driving disc spacing pressing is equipped with connection shoe cream room and work nest goes out oil hole, is equipped between the outer shroud periphery of driving disc spacing pressing and shoe cream room Oil return through-hole, the silicone oil in shoe cream room flows into work nest by going out oil hole, then passes through oil return through-hole from driving disc spacing pressing outer shroud periphery Return to shoe cream room；The oil return aperture in the fuel-displaced aperture and oil return through-hole that go out oil hole is located in shoe cream room, it is characterised in that：It is storing up On the fuel-displaced aperture of oil pocket and oil return aperture setting can with the capping in block fuel-displaced aperture and oil return aperture, in capping effect have reset Elastic component and centrifugal action part.

In order to coordinate the structure of capping to realize there is the restriction of following structure size in this patent：The inner wall of annular shoe cream room The ratio between diameter and outer diameter are 1: 1.2-1.8, and the ratio between inner diameter and work nest outer diameter of shoe cream room are 1: 1.5-3.2, storage The ratio between outer diameter and work nest outer diameter of oil pocket are 1: 1.2-2.5, it is accordingly required in particular to, it is noted that above-mentioned inner wall, outer wall are that have Thickness, the inside and outside wall diameter limited herein refer to embody shoe cream room width diameter difference data, i.e., the inner wall of shoe cream room and The outer wall of shoe cream room, certain work nest diameter also do not include the scraping blade of outer periphery.

Preferably, above-mentioned capping be mounted on shoe cream room residing for driving disc spacing pressing on, the relatively fuel-displaced aperture of above-mentioned capping and return Oilhole mouth moves on driving disc spacing pressing.

Preferably, above-mentioned capping is installed in rotation on the driving disc spacing pressing residing for shoe cream room, the center of rotation position of capping Near fuel-displaced aperture and oil return orifice position.

Preferably, the relatively fuel-displaced aperture of above-mentioned capping and oil return aperture roll setting, in shoe cream room in fuel-displaced aperture and Being made on the driving disc spacing pressing of oil return orifice position has arc surface corresponding with capping is rolled.

Preferably, above-mentioned capping is mounted on the position restrainer that limitation is sealed on diametrically fuel-displaced aperture and the movement of oil return aperture On structure.

Preferably, the center of rotation of above-mentioned capping is located at one end of capping.

Preferably, the center of rotation of above-mentioned capping is between fuel-displaced aperture and oil return aperture, alternatively, above-mentioned capping turns Dynamic center is located between capping and centrifugal action part.

Preferably, above-mentioned return springs are extension spring, compressed spring, torsionspring, flexural spring, one end effect In on driving disc spacing pressing, the other end acts in capping, and the effect of return springs is exactly that capping can be returned to and be covered when stopping The position in fuel-displaced aperture and oil return aperture.

Preferably, centrifugal action part is capping itself or is connected to a mass elements on covering, because capping is originally Body just has quality, and in engine work, the centrifugal force that the rotation of clutch driving plate is brought can make capping generate shifting Dynamic, rotation rolls, and realizes that fuel-displaced aperture, oil return aperture are left in capping by structure design, a mass-element is arranged in capping Part, including extended the functional section of capping function or installed additional such as abaculus, it is therefore an objective to so that driven by engine driving disc spacing pressing turns After dynamic, the strength for leaving block-up position of force effect can be centrifuged to lidding tape.

Preferably, fuel-displaced aperture and oil return aperture is close is arranged on the driving disc spacing pressing where shoe cream room, fuel-displaced aperture turns Dynamic radius is more than the radius of gyration in oil return aperture, and fuel-displaced aperture is close to the outer wall of shoe cream room, and oil return aperture is close in shoe cream room Wall, fuel-displaced aperture have angle with oil return aperture in circumferencial direction, the setting capping rotation between fuel-displaced aperture and oil return aperture Center, the capping at two end of center of rotation correspond to fuel-displaced aperture and oil return aperture respectively, above-mentioned return springs act on capping with Between driving disc spacing pressing.

In addition, being provided with the groove of a circle or half-turn in the inner wall of shoe cream room, there are connection groove and clutch on inner wall Second notch of internal the first notch, groove connection shoe cream room, the first notch and the second notch are in oil storage cavity wall circumference Upper opposite side is arranged, including the setting that 180 degree is symmetrical arranged such as 170-190 degree is substantially opposite, it is therefore an objective to so that shoe cream room It is internal by air gap composition pressure balance with clutch storage.

The utility model has the following technical effects：

The silicon oil clutch of the utility model installs envelope additional by fuel-displaced aperture in the shoe cream room to driving disc spacing pressing and oil return aperture Lid, return springs and centrifugal action part, in parking, by return springs so that capping completely encloses fuel-displaced aperture and returns Oilhole mouth, silicone oil drains to work nest from shoe cream room when will not be there is a situation where stopping, meanwhile, utilize centrifugal action part, capping this Body can also be exactly a centrifugal action part, in engine work, by the effect of centrifugal force, open capping so that Fuel-displaced aperture and oil return aperture are opened, and influence normal work not at all, shoe cream room nobody is to block, by engine Centrifugal force when work, the kinetic energy that silicone oil goes to work nest from shoe cream room are full；Using the silicon oil clutch of the art of this patent scheme Device can will not drain to work nest, after cold start, clutch will not be nibbled in parking there is a situation where the silicone oil of shoe cream room Crossed belt moves radiator fan and makees unnecessary cooling heat dissipation to engine, utmostly reduces cold vehicle abrasion, farthest reduces The energy consumption of automobile entirety, and make clutch on-off thoroughly, be quick on the draw, react duration and shorten, clutch and engine Performance, efficiency greatly improve.

Description of the drawings

Fig. 1 is the schematic cross-sectional view of the silicon oil clutch of the utility model.

Fig. 2 is the main structure diagram of the driving disc spacing pressing of the silicon oil clutch of the embodiments of the present invention 1.

Fig. 3 is schematic diagram of the driving disc spacing pressing of the embodiments of the present invention 1 when aperture is opened.

Fig. 4 is the main structure diagram of the driving disc spacing pressing of the silicon oil clutch of the embodiments of the present invention 2.

Fig. 5 is schematic diagram of the driving disc spacing pressing of the embodiments of the present invention 2 when aperture is opened.

Fig. 6 is the main structure diagram of the driving disc spacing pressing of the silicon oil clutch of the embodiments of the present invention 3.

Fig. 7 is schematic diagram of the driving disc spacing pressing of the embodiments of the present invention 3 when aperture is opened.

Fig. 8 is the main structure diagram of the driving disc spacing pressing of the silicon oil clutch of the embodiments of the present invention 4.

Fig. 9 is schematic diagram of the driving disc spacing pressing of the embodiments of the present invention 4 when aperture is opened.

Figure 10 is the main structure diagram of the driving disc spacing pressing of the silicon oil clutch of the embodiments of the present invention 5.

Figure 11 is schematic diagram of the driving disc spacing pressing of the embodiments of the present invention 5 when aperture is opened.

Figure 12 is the main structure diagram of the driving disc spacing pressing of the silicon oil clutch of the embodiments of the present invention 6.

Figure 13 is schematic diagram of the driving disc spacing pressing of the embodiments of the present invention 6 when aperture is opened.

Figure 14 is the main structure diagram of the driving disc spacing pressing of the silicon oil clutch of the embodiments of the present invention 7.

Figure 15 is schematic diagram of the driving disc spacing pressing of the embodiments of the present invention 7 when aperture is opened.

Figure 16 is the main structure diagram of the driving disc spacing pressing of the silicon oil clutch of the embodiments of the present invention 8.

Figure 17 is schematic diagram of the driving disc spacing pressing of the embodiments of the present invention 8 when aperture is opened.

Figure 18 is the main structure diagram of the driving disc spacing pressing of the silicon oil clutch of the embodiments of the present invention 9.

Figure 19 is schematic diagram of the driving disc spacing pressing of the embodiments of the present invention 9 when aperture is opened.

Reference numeral is：

1- driving shafts,

2- driving disc spacing pressings, go out oil hole 21, fuel-displaced aperture 21A, oil return through-hole 22, and oil return aperture 22A enters oilhole mouth 22B

3- valve blocks mechanism

4- housing assemblies

5- shoe cream rooms, annular chamber 51, external ring cavity 52

6- work nests；

7- is covered, return springs 71, position-limit mechanism 72, positioning pin 73, connecting rod 74；

8- oil scraping plates

Specific implementation mode

The utility model is described in detail below in conjunction with embodiment and attached drawing, it should be pointed out that described Embodiment be intended merely to facilitate the understanding to the utility model, and do not play any restriction effect to it.

Referring to Figures 1 and 2, a kind of energy-saving fan clutch provided in this embodiment, structure include driving shaft 1, with Driving disc spacing pressing 2 that active shaft generator is connected, valve block mechanism 3, with 2 matched housing assembly 4 of driving disc spacing pressing, set on driving disc spacing pressing 1 There are annular shoe cream room 5 and work nest 6, work nest 6 to be looped around around shoe cream room 5, cover board is stamped on shoe cream room 5, driving disc spacing pressing 2 is set There are connection shoe cream room 5 and work nest 6 to go out oil hole 21, silicone oil in shoe cream room 5 flows into work nest 6 by going out oil hole 21, The fuel-displaced aperture 21A for going out oil hole 21 is located in shoe cream room 5.The valve block of valve block mechanism 3 is mounted on out the oil outlet of oil hole 21 At mouth 21A, and for sealing fuel-displaced aperture 21A.After valve block mechanism 3 receives pwm pulse signal, fuel-displaced aperture can be opened 21A allows silicone oil to flow into work nest 6 in turn, and relies on the housing assembly 4 of the engagement clutch of the silicone oil at work nest 6, drives The radiator fan installed on housing assembly 4 rotates to cool down engine, and the silicone oil in work nest 6 is more, the master of engine connection Slippage between Moving plate 2 and housing assembly 4 is smaller；Two faces of general driving disc spacing pressing 2 are both provided with work nest 6, with 4 phase of housing assembly Engagement.

Preferably, driving disc spacing pressing 2 is equipped with the oil return through-hole 22 of connection shoe cream room 5 and work nest 6, the oil return hole of oil return through-hole 22 Mouth 22A is located in the external ring cavity 52 of shoe cream room 5, and the other end of oil return through-hole 22 is located on the outer circumferential surface of driving disc spacing pressing 2；Actively The outer circumferential surface of disk is equipped with oil scraping plate 9, the front end for entering oilhole mouth 22B and being located at 9 rotation direction of oil scraping plate of oil return through-hole 22.According to Principle of hydrodynamics, driving disc spacing pressing 2 is in rotation process, and the front end of oil scraping plate 9 forms a low-pressure area, i.e., in oil scraping plate 9 Front end forms a pumping forces so that and silicone oil is easy to enter in oil return through-hole 22 by the oilhole mouth 22B that enters of oil return through-hole, to The oil return power reached.

In order to coordinate the structure of capping 7 to realize there is the restriction of following structure size in this patent：Annular shoe cream room 5 it is interior The ratio between wall diameter and outer diameter are 1: 1.2-1.8, and the ratio between inner diameter and work nest outer diameter of shoe cream room 5 are 1: 1.5-3.2, The ratio between outer diameter and 6 outer diameter of work nest of shoe cream room 5 are 1: 1.2-2.5, it is accordingly required in particular to, it is noted that above-mentioned inner wall, outer wall There is thickness, the inside and outside wall diameter limited herein refers to the data for the diameter difference for embodying shoe cream room width, i.e., shoe cream room is interior The outer wall of wall and shoe cream room, certain work nest diameter also do not include the oil scraping plate 8 of outer periphery.

In addition, being additionally provided with oil return through-hole 22 and corresponding oil return between the outer shroud periphery of driving disc spacing pressing 2 and shoe cream room 5 Aperture 22A.When needing cut-off clutch, silicone oil can from oil return aperture, 22A flows back to shoe cream room 5 under the influence of the centrifugal force. Be provided with the capping 7 that can block aperture on fuel-displaced aperture 2lA and oil return aperture 22A, when engine be in shut down or it is static When state, capping 7 can block fuel-displaced aperture 21A and oil return aperture 22A.At the same time, further include having return springs in capping 7 71 and centrifugal action part.Wherein, the centrifugal action part is capping itself or a mass elements being arranged in capping so that Capping 7 carries out displacement under the influence of centrifugal force.The set-up mode of capping 7 includes but not limited to following several embodiments：

Embodiment 1

Fig. 2 and Fig. 3 illustrates a kind of technical solution in the utility model.Wherein, fuel-displaced aperture 21A closes on oil return aperture 22A.Capping 7 is mounted on driving disc spacing pressing 2, and blocks fuel-displaced aperture 21A and oil return aperture 22A simultaneously.In the present embodiment, it resets Elastic component 71 is the spring for connecting capping 7 and 5 inner wall of shoe cream room.When clutch starts rotation, capping 7 can be in centrifugal force Under the action of be displaced outwardly in radial directions, and then open fuel-displaced aperture 21A and oil return aperture 22A.Under normal conditions, fuel-displaced The radius of aperture 21A is greater than the radius of oil return aperture 22A.And after engine speed reduces, the centrifugal force suffered by capping 7 Also it can reduce, under the traction of tension spring return springs 71, capping 7 can reset to home position, by fuel-displaced aperture 21A and oil return Aperture 22A is covered.Prevent the case where oil leak occur in cold vehicle.

Preferably, the position-limit mechanism 72 between driving disc spacing pressing 2 and capping 7 is guide rail, and then prevents 7 sideslips of capping.

Embodiment 2

With reference to Fig. 4 and Fig. 5, in the present embodiment, the quantity for covering 7 is two, be respectively used to block fuel-displaced aperture 21A and Oil return aperture 22A.Wherein, the one end for covering 7 is provided with positioning pin 73, and capping 7 is that axis is rotated with positioning pin 73.It is same with this When, the other end for covering 7 is provided with return springs 71.When clutch works, capping 7 can turn under the influence of the centrifugal force It is dynamic, and then open fuel-displaced aperture 21A and oil return aperture 22A.Silicone oil is set to flow out.When rotating speed change is small, capping can be in Flexible Reset It is resetted under the action of part 71 and closes aperture.

Preferably, the position-limit mechanism 72 is the postive stop baffle being arranged by fuel-displaced aperture 21A and/or oil return aperture 22A, To limit the event trace of capping 7.

Preferably, the capping for blocking fuel-displaced aperture 21A and the capping for blocking oil return aperture 22A are of different sizes, And then the time for opening fuel-displaced aperture 21A and oil return aperture 22A under the influence of centrifugal force is different.

Embodiment 3

Referring to figure 6 and figure 7, in the present embodiment, close to the outer wall of shoe cream room 5, oil return aperture 22A connects fuel-displaced aperture 21A The inner wall of nearly shoe cream room 5.Capping 7 is arranged on the straight line of fuel-displaced aperture 21A and oil return aperture 22A.When clutch does not work, Capping 7 can block fuel-displaced aperture 21A and oil return aperture 22A simultaneously under the action of return springs 71.Wherein, the one of capping End is fixed by positioning pin 73.When clutch works, centrifugal force makes capping be rotated along positioning pin 73, and then opens fuel-displaced aperture 21A and oil return aperture 22A.

Embodiment 4

With reference to Fig. 8 and Fig. 9, the capping 7 in the present embodiment is roller bearing, and oily limiting groove 72, capping are formed on driving disc spacing pressing 2 7 rotate in limiting groove 72.Wherein, fuel-displaced aperture 21A is close to the outer wall of shoe cream room 5, and oil return aperture 22A is close to shoe cream room 5 Inner wall.Fuel-displaced aperture 21A and oil return aperture 22A has angle in circumferencial direction, in fuel-displaced aperture 21A and oil return aperture 22A Between pass through positioning pin 73 be provided with capping 7 center of rotation.Preferably, it is also associated with a connecting rod 74 on positioning pin 73, resets Elastic component 71 is connected with connecting rod 74.

When clutch works, capping 7 can be influenced to rotate in limiting groove 72 by centrifugal force, and then open oil outlet Mouth 21A and oil return aperture 22A.When clutch rotational speed becomes smaller or is stopped, centrifugal force becomes smaller, and return springs 71 can push Connecting rod 74, and capping 7 is resetted, close fuel-displaced aperture 21A and oil return aperture 22A.

Preferably, positioning pin 73 capping 7 middle part position eccentric setting can be used, to control fuel-displaced aperture 21A and The opening time of oil return aperture 22A.

Preferably, the matter of capping 7 one end for blocking fuel-displaced aperture 21A and one end for blocking oil return aperture 22A Amount is different, to control the opening time of fuel-displaced aperture 21A and oil return aperture 22A.

Embodiment 5

0 and Figure 11 referring to Fig.1, in the present embodiment, capping 7 are to be separately positioned on fuel-displaced aperture 21A and oil return aperture 22A On ball.The ball rolls in position-limit mechanism 72.And return springs 71 are the spring acted on ball.Work as clutch When device works, ball 7 can be under the influence of centrifugal force along the track of position-limit mechanism 72 to radial outer rolling, and opens oil outlet Mouth 21A and oil return aperture 22A.When clutch rotational speed becomes smaller or is stopped, centrifugal force becomes smaller, and return springs 71 can be distinguished Ball 7 is resetted, and closes fuel-displaced aperture 21A and oil return aperture 22A.

It is preferably, different from for blocking the ball size of oil return aperture 22A for blocking the ball of fuel-displaced aperture 21A, To control the opening time of fuel-displaced aperture 21A and oil return aperture 22A.

In addition, being provided with the groove of a circle or half-turn in the inner wall of shoe cream room, there are connection groove and clutch on inner wall Second notch of internal the first notch, groove connection shoe cream room, the first notch are right on oil storage cavity wall with the second notch Side is arranged.Shoe cream room is formed with clutch inner wall to come through the air gap that two notches and one or two semi-circular grooves are connected to Pressure inside balance.

The utility model covers 7 couples of fuel-displaced aperture 21A and oil return aperture 22A by setting and blocks so that engine Work nest 6 will not be leak into when parking there is a situation where silicone oil.And then the energy that cold vehicle abrasion can be reduced, reduce automobile entirety Consumption, and make clutch on-off thoroughly, be quick on the draw, it is counter go out duration is answered to shorten, be further reduced unnecessary energy consumption.With this Meanwhile when the engine operates, capping 7 can open fuel-displaced aperture 21A and oil return aperture 22A under the influence of centrifugal force again, make Obtaining fan can work normally.Relative to traditional silicon oil clutch, silicone oil is from storage when the utility model thoroughly solves parking Oil pocket drains to the problem of work nest 6, at the same time, again it is not necessary that any artificial partition is arranged in shoe cream room 5.Considerably increase clutch The efficiency of device and response time.

Figure 12 to Figure 19 respectively shows other several embodiments of the technical program, in these types of embodiment, capping 7 It is fixed on driving disc spacing pressing by positioning pin 73, and is that axis is rotated with positioning pin 73.Effect has return springs 71 in capping 7. Return springs 71 used in these types of embodiment simultaneously differ.Including but not limited to：Tension spring, torsional spring, spring, compression spring Etc..Those skilled in the art can be according to the size and performance requirement of clutch itself come the reset to be used of unrestricted choice institute Elastic component 71.

Similarly, when clutch works, capping 7 can be because centrifugal force be around the rotation of positioning pin 73, and then opens fuel-displaced aperture 21A With oil return aperture 22A.But when rotating speed reduces, after centrifugal force deficiency, capping 7 can be reset to block-up position by return springs 71, And block fuel-displaced aperture 21A and oil return aperture 22A.

For narrow relative to the space in the structure arrangement in shoe cream room 5, it is also contemplated that best fuel-displaced aperture 21A to the greatest extent may be used Centrifugal force can be utilized, preferably design is located adjacent to the outermost of shoe cream room 5, on the contrary, for oil return aperture 22A, desired positions are set The most inner side in shoe cream room 5 is counted, structure arrangement is more advantageous to using the rotational structure of Figure 12-19 schemes, includes that capping 7 is turned Dynamic to be centrally disposed between fuel-displaced aperture 21A and oil return aperture 22A, fuel-displaced aperture 21A is arranged from oil return aperture 22A different Circumferential angle and close to each other, capping 7 is at one end there are one extension or according to capping 7 thickness difference configuration itself so that Center of gravity leaves its center of rotation, and after engine rotation, capping 7 obtains the torque of rotation by centrifugal force, and parking is overcome to reset bullet The reset force of property part 71, these schemes, arrangement space is reasonable, opens simultaneously or block fuel-displaced aperture 21A and oil return aperture 22A。

Finally it should be noted that above example is only to illustrate the technical solution of the utility model, rather than to this reality With the limitation of novel protected range, although being explained in detail to the utility model with reference to preferred embodiment, this field it is general Lead to it will be appreciated by the skilled person that can be modified or replaced equivalently to the technical solution of the utility model, without departing from this The spirit and scope of utility model technical solution.

Claims (11)

1. a kind of energy-saving fan clutch, including driving shaft, the driving disc spacing pressing being connected with driving shaft, valve block mechanism and active The matched protecgulum of disk and housing assembly；Driving disc spacing pressing is equipped with annular shoe cream room and work nest, and work nest is looped around the outer of shoe cream room Around；Driving disc spacing pressing is equipped with connection shoe cream room and work nest goes out oil hole, is equipped with back between the outer shroud periphery of driving disc spacing pressing and shoe cream room Oil hole, the silicone oil in shoe cream room flows into work nest by going out oil hole, then passes through oil return through-hole from driving disc spacing pressing outer shroud periphery and return To shoe cream room；The oil return aperture in the fuel-displaced aperture and oil return through-hole that go out oil hole is located in shoe cream room, it is characterised in that：Annular storage The ratio between inner diameter and outer diameter of oil pocket are 1: 1.2-1.8, and the ratio between inner diameter and work nest outer diameter of shoe cream room are 1: 1.5-3.2, the ratio between outer diameter and work nest outer diameter of shoe cream room are 1: 1.2-2.5, in the fuel-displaced aperture of shoe cream room and oil return hole On mouth setting can with the capping in block fuel-displaced aperture and oil return aperture, in capping effect have return springs and centrifugal action part.

2. a kind of energy-saving fan clutch according to claim 1, it is characterised in that：Above-mentioned capping is mounted on shoe cream room On residing driving disc spacing pressing, above-mentioned capping is moved relative to fuel-displaced aperture and oil return aperture on driving disc spacing pressing.

3. a kind of energy-saving fan clutch according to claim 2, it is characterised in that：Above-mentioned capping is mounted on limitation and seals It covers on the position-limit mechanism of diametrically fuel-displaced aperture and the movement of oil return aperture.

4. a kind of energy-saving fan clutch according to claim 1, it is characterised in that：Above-mentioned capping is rotationally pacified On the driving disc spacing pressing residing for shoe cream room, the center of rotation of capping is located near fuel-displaced aperture and oil return orifice position.

5. a kind of energy-saving fan clutch according to claim 4, it is characterised in that：The center of rotation position of above-mentioned capping In one end of capping.

6. a kind of energy-saving fan clutch according to claim 4, it is characterised in that：The center of rotation position of above-mentioned capping Between fuel-displaced aperture and oil return aperture, alternatively, the center of rotation of above-mentioned capping is located between capping and centrifugal action part.

7. a kind of energy-saving fan clutch according to claim 1, it is characterised in that：Above-mentioned capping is with respect to oil outlet Mouth and oil return aperture roll setting, make to have and roll on the driving disc spacing pressing of fuel-displaced aperture and oil return orifice position in shoe cream room and seal Cover corresponding arc surface.

8. the energy-saving fan clutch according to any one in claim 1-7, it is characterised in that：Above-mentioned reset bullet Property part be extension spring, compressed spring, torsionspring, flexural spring, one end acts on driving disc spacing pressing, and the other end acts on capping On.

9. the energy-saving fan clutch according to any one in claim 1-7, it is characterised in that：Centrifugal action part is Capping itself or a mass elements being connected in capping.

10. a kind of energy-saving fan clutch according to claim 1, it is characterised in that：Fuel-displaced aperture and oil return aperture Close to be arranged on the driving disc spacing pressing where shoe cream room, the radius of gyration in fuel-displaced aperture is more than the radius of gyration in oil return aperture, fuel-displaced Aperture is close to the outer wall of shoe cream room, and close to the inner wall of shoe cream room, fuel-displaced aperture has with oil return aperture in circumferencial direction in oil return aperture There is angle, the setting capping center of rotation between fuel-displaced aperture and oil return aperture, the capping at two end of center of rotation corresponds to respectively Oilhole mouth and oil return aperture, above-mentioned return springs act between capping and driving disc spacing pressing.

11. a kind of energy-saving fan clutch according to claim 1, it is characterised in that：It is opened in the inner wall of shoe cream room There is the groove of a circle or half-turn, there is connection groove to be connected to shoe cream room with the first notch, the groove inside clutch on inner wall Second notch, the first notch and the second notch opposite side on oil storage cavity wall circumference are arranged.