CN208542397U - Combining jet device - Google Patents

Abstract

The utility model discloses combining jet devices, including cavity, elastic membrane, outlet valve and inlet valve, outlet valve and inlet valve are movably located on cavity, outlet valve forms exit passageway when opening, inlet valve forms intake channel when opening, elastic membrane is located at the inner wall on cavity and constituting cavity, and cavity is expanded or shunk therewith when elastic membrane is vibrated；When cavity is expanded, the inside and outside differential pressure driving exit passageway of cavity shrinks or closes, intake channel is expanded or is opened；When cavity is shunk, the inside and outside differential pressure driving exit passageway expansion of cavity or opening, intake channel shrink or close；On from the inside of cavity to external direction, at least partly section of exit passageway is formed as the contraction channel that area of passage is gradually reduced.The combining jet device can reduce the air-flow mechanical loss of energy caused by gas current friction, efficiently generate air-flow, and multiple combining jet devices work side by side, can generate the air-flow of large area, so as to be used for the various fields such as divulge information, cool down.

Description

Combining jet device

Technical field

The utility model belongs to field of fluid machinery, specifically, the utility model relates to a kind of combining jet devices.

Background technique

Synthesizing jet-flow (English name: synthetic jet) is that one kind is produced since driver replaces pressure-vaccum surrounding fluid Raw discontinuous jet stream.Synthesizing jet-flow excitor, which has, can produce certain vibration mechanism (such as piston, piezoelectric film, electromagnetic membrane) Cavity, cavity passes through aperture and external fluid connection.Replace pressure-vaccum surrounding fluid when driver works, forms fluid to remote Flowing from aperture direction.Compared with traditional continuous air blowing or inspiratory flow control technology, synthesizing jet-flow has structure simple It is compact, light weight and cost is low, it is easy to maintain, be not necessarily to additional gas source many advantages, such as.

Currently used combining jet device is when forming jet stream, due in ejector and ejector imports and exports biggish gas Stream friction, causes that the air-flow mechanical loss of energy is big, air-flow cannot be efficiently formed；And existing combining jet device generally can only shape At shallow bid jet stream, the air-flow of large area can not be formed, thus can only be used to cool down small-sized heating electric appliance element.

Therefore, existing combining jet device is further improved.

Utility model content

The utility model is intended to solve at least some of the technical problems in related technologies.For this purpose, this reality It is to propose a kind of combining jet device with a novel purpose, which can reduce air-flow caused by gas current friction Mechanical power loss can relatively efficiently generate air-flow, and when multiple combining jet devices work side by side, can generate big face Long-pending air-flow, so as to be used for the various fields such as divulge information, cool down.

In the one aspect of the utility model, the utility model proposes a kind of combining jet devices.According to the utility model Embodiment, the combining jet device includes: cavity, elastic membrane, outlet valve and inlet valve,

The outlet valve and the inlet valve are movably located on the cavity, when the outlet valve is opened Exit passageway is formed, the inlet valve forms intake channel when opening,

The elastic membrane is located on the cavity and constitutes the inner wall of the cavity, elastic membrane cavity when vibrating It expands or shrinks therewith；

The combining jet device is configured to, and when the cavity is expanded, the inside and outside differential pressure driving outlet of the cavity is logical Road shrinks or closes, the intake channel is expanded or opens；When the cavity is shunk, described in the inside and outside differential pressure driving of the cavity Exit passageway expansion or opening, the intake channel shrink or close；Wherein,

On from the inside of the cavity to external direction, at least partly section of the exit passageway is formed as area of passage The contraction channel being gradually reduced.

According to the combining jet device of the utility model embodiment, when working condition, the elastic membrane on cavity is arranged in electricity It is vibrated under magnetic drive, cavity is expanded, and inside cavity air pressure reduces, and inlet valve is expanded under inner and outer air pressure effect Or open, fluid is inhaled into cavity by intake channel, and exports valve at this time and collapse or close under the action of inner and outer air pressure, It is reduced or turned off fluid and enters cavity from exit passageway, then elastic membrane drives cavity to shrink under electromagnetism power drive, in cavity Portion's air pressure increases, and inlet valve is collapsed or closed under inner and outer air pressure effect, is reduced or turned off fluid from intake channel and flows out chamber Body, and export valve at this time and open or expand under the action of inner and outer air pressure, fluid flows out cavity through exit passageway, when outlet is lived When door is opened or expanded, it can be formed from cavity to extraneous contraction channel, this channel is conducive to the higher pressure in cavity The liquid turns of power are then high-speed flow projects.

In addition, can also have following additional technology special according to the combining jet device of the utility model above-described embodiment Sign:

Preferably, from the direction of the external-to-internal of the cavity, the area of passage of the intake channel first gradually subtracts It is small, after be gradually increased.Inventors have found that the intake channel of this kind of form, which is conducive to the air that will be inhaled into, is first converted into a constant speed The air-flow of degree, and keep air-flow uniform, friction loss caused by flowing unevenness is reduced, by again will after the intermediate throat of intake channel The kinetic energy of air-flow is converted into the pressure in cavity and reduces air velocity simultaneously, to reduce caused by the gas current friction in cavity Mechanical power loss, so as to relatively efficiently generate air-flow.

Preferably, maximum volume variable quantity of the cavity in expansion and contraction is V, and the exit passageway is opened in maximum Area is that A, V and A meet relational expression at smallest cross-sectional when spending: V >=x × A, i.e. V are more than or equal to x multiplied by A, wherein x=10, x Unit be rice m, the unit of V is cubic meter m³, the unit of A is square metre m².As a result, when elastic membrane vibration frequency is 1 hertz When, air-flow time averaged velocity, which is formed by, in exit passageway smallest cross-sectional by cavity volume variation is not less than 10m/s, so as to For the various fields such as divulging information or cooling down.

Preferably, the inlet valve and the outlet valve are oppositely arranged.Thus, it is possible to guarantee passing through for airflow smooth Cavity.

Preferably, the elastic membrane is arranged in pairs in the two sides on airflow direction.Thus, it is possible to realize the equal of cavity Even contraction and expansion, thus the air-flow mechanical loss of energy caused by gas current friction when reducing combining jet device work.

Preferably, valve setting in outlet described at least one described elastic membrane face.Thus, it is possible to which it is logical to significantly improve outlet Road air velocity.

Preferably, when multiple combining jet devices are set side by side, at least one described elastic membrane constitutes two neighboring institute State the side wall of combining jet device.Thereby, it is possible to generate the air-flow of large area, so as to be used for the various fields such as divulge information, cool down, And the combining jet device is compact-sized.

Preferably, the intake channel of the combining jet device of the elastic membrane is shared towards consistent, the described outlet Channel direction is also consistent.Thus, it is possible to guarantee the air-flow of generation large area.

Preferably, on the inside from the cavity to external direction, the outlet valve is formed as being increasingly towards that This arc clamshell doors extended.Thus, it is possible to the air-flow mechanical loss of energy caused by gas current friction be substantially reduced, to guarantee efficient Generation air-flow.

Preferably, on the direction from the external-to-internal of the cavity, the inlet valve is formed as first being increasingly towards Each other extend, after be gradually distance from mutual curved shape clamshell doors.

The additional aspect and advantage of the utility model will be set forth in part in the description, partially will be from following description In become obvious, or recognized by the practice of the utility model.

Detailed description of the invention

The above-mentioned and/or additional aspect and advantage of the utility model will in combining description of the following accompanying drawings to embodiment Become obvious and be readily appreciated that, in which:

Fig. 1 is the structural schematic diagram according to the combining jet device of the utility model one embodiment；

Fig. 2 is the structural schematic diagram according to the combining jet device of the utility model further embodiment；

Fig. 3 is the structural schematic diagram according to the combining jet device of the utility model another embodiment；

Fig. 4 is the structural schematic diagram according to the combining jet device of the utility model another embodiment；

Fig. 5 is the structural schematic diagram according to the combining jet device of the utility model another embodiment；

Fig. 6 is the structural schematic diagram according to the combining jet device of the utility model another embodiment.

Specific embodiment

The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng The embodiment for examining attached drawing description is exemplary, it is intended to for explaining the utility model, and should not be understood as to the utility model Limitation.

In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", The orientation or positional relationship of the instructions such as " clockwise ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " is based on the figure Orientation or positional relationship is merely for convenience of describing the present invention and simplifying the description, rather than the dress of indication or suggestion meaning It sets or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to the utility model Limitation.

In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or Implicitly include at least one this feature.The meaning of " plurality " is at least two, such as two in the description of the present invention, It is a, three etc., unless otherwise specifically defined.

In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be Mechanical connection, is also possible to be electrically connected；It can be directly connected, two can also be can be indirectly connected through an intermediary The interaction relationship of connection or two elements inside element, unless otherwise restricted clearly.For the common skill of this field For art personnel, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.

In the present invention unless specifically defined or limited otherwise, fisrt feature is in the second feature " on " or " down " It can be that the first and second features directly contact or the first and second features are by intermediary mediate contact.Moreover, first is special Sign can be fisrt feature above the second feature " above ", " above " and " above " and be directly above or diagonally above the second feature, or only Indicate that first feature horizontal height is higher than second feature.Fisrt feature under the second feature " below ", " below " and " below " can be with It is that fisrt feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.

In the one aspect of the utility model, the utility model proposes a kind of combining jet devices.According to the utility model Embodiment, with reference to Fig. 1-4, which includes cavity 100, elastic membrane 200, outlet valve 300 and inlet valve 400。

One embodiment according to the present utility model, with reference to Fig. 1, elastic membrane 200 is located on cavity 100 and constitutes cavity 100 inner wall, and cavity 100 is expanded or is shunk therewith when the vibration of elastic membrane 200.Specifically, the elastic membrane 200 can be in electromagnetism It is vibrated under power drive, so that cavity 100 be driven to expand or shrink.A specific embodiment according to the present utility model, ginseng Fig. 1 is examined, elastic membrane 200 can be arranged in pairs at the two sides of cavity 100, and when pairs of elastic membrane moves backwards, cavity is expanded , inside cavity air pressure reduces；And when pairs of elastic membrane moves toward one another, cavity is compressed, and inside cavity air pressure increases；Or As shown in Fig. 2, at least one 200 face of elastic membrane outlet valve 300 is arranged, since elastic membrane 200 is in vibration, can hang down at it Histogram is upwardly formed certain air velocity, can be straight by the air velocity when the opposite outlet valve 300 of the elastic membrane 200 It connects and is applied on exit flow, be conducive to air velocity of increasing export.

Further embodiment according to the present utility model exports valve 300 and inlet valve 400 is located at reference to Fig. 1 and 3 On cavity 100, outlet valve 300 forms exit passageway 30 when opening, and intake channel 40 is formed when inlet valve 400 is opened, and And inlet valve 400 and outlet valve 300 are positioned opposite, specifically, under electromagnetism power drive, cavity 100 is in bullet with reference to Fig. 3 Property film 200 under the action of when expanding, 100 internal pressure of cavity reduces, and the inside and outside differential pressure driving exit passageway 30 of cavity 100 is shunk Or it closes, while the expansion of intake channel 40 or opening, fluid enter cavity 100 through intake channel 40 under the action of inside and outside differential pressure It is internal；With reference to Fig. 1, under electromagnetism power drive, when cavity 100 is shunk under the action of elastic membrane 200,100 internal pressure of cavity Increase, inside and outside differential pressure driving exit passageway 30 expansion of cavity 100 or opening, while intake channel 40 shrinks or closes, at this time Due to pressure rise in cavity 100, on the direction inside cavity 100 to outside, outlet valve 300 is formed as being increasingly towards The arc clamshell doors extended each other, it is logical that at least partly section of exit passageway 30 is formed as the contraction that area of passage is gradually reduced Road, this channel are conducive to the liquid turns of elevated pressures in cavity be high-speed flow, then project through exit passageway.

Another specific embodiment according to the present utility model, with reference to Fig. 3, when cavity 100 is expanded, from cavity 100 External-to-internal direction on, inlet valve 400 be formed as first being increasingly towards each other extend, after be gradually distance from mutual curve Shape clamshell doors, the area of passage for the intake channel 40 being formed simultaneously are first to be gradually reduced to be gradually increased form afterwards.Inventors have found that The channel of this kind of form is conducive to the air-flow that the air that will be inhaled into first is converted into certain speed, and keeps the fluid entered uniform, Friction loss caused by partial fluid unevenness is reduced, by the way that the kinetic energy of air-flow is converted pressure again after the intermediate throat of intake channel Can, increase the pressure in cavity and reduce air velocity simultaneously, to reduce mechanical energy loss caused by the gas current friction in cavity It loses, so as to relatively efficiently generate air-flow.

Another specific embodiment according to the present utility model, for convenience of realizing inlet valve 400 and exporting valve 300 Opening and closing, inlet valve 400 and outlet valve 300 can have elasticity.Such as outlet valve 300 and inlet valve 400 have bullet Property, the change in fluid pressure in cavity 100 can be cooperated to realize opening and closing: when not stressing, exporting valve 300 and inlet valve 400 realize closed state by the elasticity of itself；Fluid pressure when elastic membrane 200 shrinks cavity 100, in cavity 100 Power increases, and outlet valve 300 is opened, and the exit passageway of formation is to shrink channel, and the intracorporal fluid of chamber is squeezed by the channel Out；And inlet valve 400 is in close state since the pressure of 100 inside of cavity is greater than external pressure；When elastic membrane 200 makes When cavity 100 is expanded, the Fluid pressure in cavity 100 reduces, and outlet valve 300 remains turned-off under the compressing of external pressure； And inlet valve 400 is opened under the compressing of external pressure.

Another specific embodiment according to the present utility model, inlet valve 300 and outlet valve 400 can also pass through work Opening and closing function is realized in rotation at movable joint.For example, with reference to Figure 4 and 5, exporting valve 300 and inlet valve 400 respectively can be around Node 500 and 600 rotate；When elastic membrane 200 shrinks cavity 100, the Fluid pressure in cavity 100 increases, and outlet is lived Door 300 is rotated around node 500 and is opened, and forms the contraction channel of outlet, fluid is extruded by the channel, can also be arranged Restriction site (not shown) exports the maximum opening of valve 300 to limit；And inlet valve 400 is due to the pressure of 100 inside of cavity Power is greater than external pressure and is in close state；When elastic membrane 200 expands cavity 100, the Fluid pressure in cavity 100 subtracts Small, outlet valve 300 remains turned-off under the compressing of external pressure；And inlet valve 400 under the compressing of external pressure around Node 600 is rotated and is opened, and the maximum opening that restriction site (not shown) carrys out limiting inlet valve 400 can also be arranged.

Another specific embodiment according to the present utility model, to enable elastic membrane 200 effectively to suck and extrude air-flow, Outlet valve 300 and inlet valve 400 can realize in time on-off action in 200 motion switch mode of elastic membrane, can The flexibility ratio of folding is improved to be made into outlet valve and inlet valve by using light material to reduce its motional inertia, The flexibility ratio of folding can also be improved by governor valve elastic properties of materials simultaneously.

Another specific embodiment according to the present utility model, in order to make elastic membrane 200 be applied to the pressure energy of cavity 100 Enough airflow kinetic energies being effectively changed at outlet valve 300, V and A meet relational expression: V >=x × A, i.e. V are greater than and multiply equal to x With A, wherein maximum volume variable quantity of the cavity in expansion and contraction is V, smallest cross-sectional of the exit passageway in maximum opening Place's area is A, and the unit of x is rice m, and the unit of V is cubic meter m³, the unit of A is square metre m².In this way when elastic membrane vibrates frequency When rate is 1 hertz, it is not less than 10m/s in the air-flow time averaged velocity that exit passageway smallest cross-sectional is formed by cavity volume variation, So as to be used to the various fields such as divulge information or cool down.

Another specific embodiment according to the present utility model, exporting valve 300 and inlet valve 400 can also be and pass through Other way come realize folding, such as can inlet valve and outlet valve on controllable electromagnet is set, by program come Control outlet valve 300 and inlet valve 400 make them cooperate the expansion and contraction of cavity 100 to realize folding.

Another specific embodiment according to the present utility model, will with reference to Fig. 6 in order to generate the air-flow of large area Multiple combining jet devices are set side by side, at least one elastic membrane 200 constitutes the side wall of two neighboring combining jet device, also, altogether With the intake channel 40 of the combining jet device of elastic membrane 200 towards consistent, exit passageway 30 towards also consistent.Thereby, it is possible to produce The air-flow of raw large area, so as to be used for the various fields such as divulge information, cool down.

Inventors have found that the combining jet device of the application structure, when working condition, the elastic membrane on cavity is arranged in electricity It is vibrated under magnetic drive, cavity is expanded, and inside cavity air pressure reduces, and inlet valve is expanded under inner and outer air pressure effect Or open, fluid is inhaled into cavity by intake channel, and exports valve at this time and collapse or close under the action of inner and outer air pressure, It is reduced or turned off fluid and enters cavity from exit passageway, then elastic membrane drives cavity to shrink under electromagnetism power drive, in cavity Portion's air pressure increases, and inlet valve is collapsed or closed under inner and outer air pressure effect, is reduced or turned off fluid from intake channel and flows out chamber Body, and export valve at this time and open or expand under the action of inner and outer air pressure, fluid flows out cavity through exit passageway, when outlet is lived When door is opened or expanded, it can be formed from cavity to extraneous contraction channel, this channel is conducive to the higher pressure in cavity The liquid turns of power are then high-speed flow projects, since high-speed flow area only occurs in the near exit of exit passageway, The lower compared with air velocity in multizone of the channel, gas current friction are less；It is formed simultaneously when inlet valve is opened or is expanded Intake channel is expanded form after first shrinking, and the air that the channel of this kind of form is conducive to be inhaled into first is converted into certain speed Air-flow, and keep the fluid entered uniform, reduce partial fluid it is uneven caused by friction loss, pass through the middle standpipe of intake channel Pressure energy is converted by the kinetic energy of air-flow again behind portion, promote the pressure in cavity and reduces air velocity simultaneously, to reduce in cavity Gas current friction caused by mechanical power loss, so as to relatively efficiently generate air-flow.

In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term It states and is necessarily directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be with It can be combined in any suitable manner in any one or more of the embodiments or examples.In addition, without conflicting with each other, this field Technical staff can by the feature of different embodiments or examples described in this specification and different embodiments or examples into Row combination and combination.

Although the embodiments of the present invention have been shown and described above, it is to be understood that above-described embodiment is Illustratively, it should not be understood as limiting the present invention, those skilled in the art are in the scope of the utility model Inside it can make changes, modifications, alterations, and variations to the above described embodiments.

Claims (10)

1. a kind of combining jet device, including cavity, elastic membrane, outlet valve and inlet valve, which is characterized in that

The outlet valve and the inlet valve are movably located on the cavity, and the outlet valve is formed when opening Exit passageway, the inlet valve form intake channel when opening,

The elastic membrane is located on the cavity and constitutes the inner wall of the cavity, and the cavity is therewith when vibrating for the elastic membrane Expansion is shunk；

The combining jet device is configured to, and when the cavity is expanded, the inside and outside differential pressure of the cavity drives the exit passageway to receive Contracting or closing, intake channel expansion are opened；When the cavity is shunk, the inside and outside differential pressure of the cavity drives the outlet Channel expansion or opening, the intake channel shrink or close；Wherein,

On from the inside of the cavity to external direction, at least partly section of the exit passageway is formed as area of passage gradually Reduced contraction channel.

2. combining jet device according to claim 1, which is characterized in that from the direction of the external-to-internal of the cavity On, the area of passage of the intake channel is first gradually reduced, after be gradually increased.

3. combining jet device according to claim 1, which is characterized in that largest body of the cavity in expansion and contraction Product variable quantity be V, the exit passageway at the smallest cross-sectional in maximum opening area be A, V and A meet relational expression: V >=x × A, wherein the unit of x=10, x are rice, and the unit of V is cubic meter, and the unit of A is square metre.

4. combining jet device according to claim 1, which is characterized in that the inlet valve and the outlet valve are opposite Setting.

5. combining jet device according to claim 4, which is characterized in that the elastic membrane is arranged in pairs in airflow side Upward two sides.

6. combining jet device according to claim 1, which is characterized in that exported described at least one described elastic membrane face Valve setting.

7. combining jet device according to claim 1, which is characterized in that when multiple combining jet devices are set side by side, At least one described elastic membrane constitutes the side wall of the two neighboring combining jet device.

8. combining jet device according to claim 7, which is characterized in that share the combining jet device of the elastic membrane The intake channel towards the consistent, exit passageway towards also consistent.

9. combining jet device according to claim 1 to 8, which is characterized in that the inside from the cavity to On external direction, the outlet valve is formed as being increasingly towards the arc clamshell doors extended each other.

10. combining jet device according to claim 1 to 8, which is characterized in that in the outside from the cavity Onto internal direction, the inlet valve be formed as first being increasingly towards extend each other, after be gradually distance from mutual curved shape pair It opens the door.