CN205912416U

CN205912416U - Adjustable fluid connector

Info

Publication number: CN205912416U
Application number: CN201620785062.2U
Authority: CN
Inventors: 李英博; 王光强; 黄海涛; 彭晶晶
Original assignee: Shanghai Radio Equipment Research Institute
Current assignee: Shanghai Radio Equipment Research Institute
Priority date: 2016-07-25
Filing date: 2016-07-25
Publication date: 2017-01-25
Anticipated expiration: 2026-07-25

Abstract

The utility model discloses an adjustable fluid connector, it contains the shell, sets up solid fixed valve element, movable valve core and spring in the shell, wherein: solid fixed valve element in have one and be equipped with first spacing and the spacing cavity of second, and this cavity have one with the air vent of outside intercommunication, the slider sets up gu in fixed valve element's the cavity cavity and lie in first spacing and second between spacing, the elastic component, its one end supports the slider, the shell is supported to the other end. Its advantage is: this fluid connector can reduce the cold drawing deflection that liquid expend with heat and contract with cold leads to according to the volume of cold drawing internal pressure automatically regulated enclosure space to the cold drawing deforming and breaking who avoids liquid volume change to lead to guarantees the reliable use of cold drawing subassembly.

Description

A kind of adjustable fluid adapter

Technical field

This utility model is related to fluid for radiating heat technical field and in particular to a kind of adjustable fluid adapter.

Background technology

With the development of electronic technology, the size of electronic equipment reduces rapidly, and function and power are but increasing always, equipment Inside have accumulated powerful electronic devices and components (heat load) in a large number, the heat that unit volume accommodates gets more and more, cold drawing radiating Application is also further extensive.The structure of existing typical case's cold drawing is as shown in figure 1, connected by substrate 1 ', upper plate 3 ', lower shoe 2 ', fluid Connect device 4 ' composition.

Cold drawing typically adopts technique for welding, and after cold drawing processing, each part becomes an entirety, has higher intensity, Certain pressure can be born, there is no fluid leakage, flowing in and out of liquid cold-zone medium can be realized by fluid connector 4 ', Heat is taken away, it has good sealing, when cold drawing is in off working state, the liquid in runner is closed in import Between fluid connector 4 ' and outlet fluid connection 4 ', it is not allow for any leakage, Fig. 2 a is fluid coupling under closure state Sectional view, Fig. 2 b is open mode fluid coupling sectional view, and the direction of arrow is and liquid flow direction, in figure 41 ' be shell, 42 ' it is movable valve plug, 43 ' is fixed spool, 44 ' is spring, 45 ' is the first sealing ring, 46 ' is the second sealing ring.

When cold drawing is in off working state, the liquid in runner is closed in the runner of cold drawing, and volume is v, this sky Between non-telescoping, work as temperature change, liquid medium occurs phenomenon of expanding with heat and contract with cold, the volume of liquid can become big or reduce, characterize The parameter of this characteristic of fluid media (medium) is coefficient of volume expansion γ, in the case of known variant temperature delta t with volume v, by tabling look-up Understand the volume δ v of fluid media (medium) change with calculating, necessarily lead to the upper and lower bottom plate of cold drawing to produce stress, when temperature from ambient liter Up to maximum storage temperature, the volume of liquid becomes big, and variable quantity is δ v1, the pressing from inside to outside that the upper and lower bottom plate of cold drawing is subject to Power, produces bulge, or even can cause to rupture, and same reason, when temperature from ambient is reduced to minimum storage temperature, the body of liquid Amass and diminish, variable quantity is δ v2, the upper and lower bottom plate of cold drawing is subject to pressure from the outside to the core, produce depression, or even rupture can be caused.

Utility model content

The purpose of this utility model is to provide a kind of adjustable fluid adapter, its adopt with passage and spacing in The valve core structure of cavity body, can automatically adjust the volume of closing space according to pressure in cold drawing, and then reduction liquid expands with heat and contract with cold The cold drawing deflection leading to.

In order to achieve the above object, this utility model is achieved through the following technical solutions:

A kind of adjustable fluid adapter, it comprises shell, the fixed spool being arranged on inside the shell, movable valve plug and bullet Spring, is characterized in that:

Have one in described fixed spool and be provided with first spacing and the second spacing hollow cavity, and this hollow cavity tool There is the passage of one and ft connection；

Slide block, be arranged in the hollow cavity of described fixed spool and be located at described first spacing and second spacing it Between；

Elastic component, its one end props up described slide block, and the other end props up shell.

Above-mentioned adjustable fluid adapter, wherein:

During room temperature, described elastic component is in free state.

Above-mentioned adjustable fluid adapter, wherein:

Described passage is located at one end of described hollow cavity；

The first described spacing middle part positioned at described hollow cavity；

The second described spacing other end positioned at described hollow cavity.

Above-mentioned adjustable fluid adapter, wherein:

Described movable valve plug is arranged in fluid intake one end of described shell and is located at described fixed spool and inside the shell Between wall；

Described spring is arranged on described inside the shell and is located between described fixed spool and outer casing inner wall, and this spring one end Prop up described movable valve plug, the other end props up described shell.

Above-mentioned adjustable fluid adapter, wherein:

Described elastic component is located in described hollow cavity.

Above-mentioned adjustable fluid adapter, wherein:

The external diameter of described slide block is mated with the internal diameter of described hollow cavity.

This utility model compared with prior art has the advantage that this fluid connector can be automatic according to pressure in cold drawing Adjust the volume of closing space, reduce liquid and expand with heat and contract with cold the cold drawing deflection leading to, to avoid liquid volume change to lead to Cold drawing deformation failure is it is ensured that the reliability of cold drawing assembly uses.

Brief description

Fig. 1 is the typical cold drawing structure chart of prior art；

Fig. 2 a is closure state fluid coupling sectional view of the prior art；

Fig. 2 b is open mode fluid coupling sectional view of the prior art；

Fig. 3 is sectional view of the present utility model.

Specific embodiment

Below in conjunction with accompanying drawing, by describing a preferably specific embodiment in detail, this utility model is done and explains further State.

As shown in figure 3, a kind of adjustable fluid adapter, its comprise shell 41, the fixed spool 43 being arranged in shell 41, Movable valve plug 42 and spring 44, fluid intake one end that described movable valve plug 42 is arranged on described shell 41 is the top of in figure In end and positioned between described fixed spool 43 and shell 41 inwall；Described spring 44 is arranged in described shell 41 and is located at institute State between fixed spool 43 and shell 41 inwall, and this spring 44 one end props up the bottom of described movable valve plug 42, the other end Prop up inside described shell 41；Have one in described fixed spool 43 to be provided with first spacing 4311 and second spacing 4312 Cavity body 431, and this hollow cavity 431 has the passage 4313 of one and ft connection；Slide block 47, is arranged on described standing valve In the hollow cavity 431 of core 43 and between described first spacing 4311 and second spacing 4312；Elastic component 48, its one end Prop up described slide block 47, the other end props up shell 41, when slide block 47 slides in hollow cavity 431, is limited in first Spacing 4311 and second spacing 4312 in the region being limited；The external diameter of described slide block 47 and the internal diameter of described hollow cavity 431 Coupling；Operation principle of the present utility model is to be connected this adjustable fluid adapter in the way of Fig. 1 with cold drawing, make middle cavity Body 431 is connected with space in cold drawing, once temperature change, liquid thermal expansion or shrinkage cause slide block 47 force unbalance to produce up and down Slide, until slide block 47 finds new balance under fluid pressure effect in elastic component 48 and external atmosphere pressure and cold drawing, this Utility model using adapter internal closed space according to cold drawing liquid internal pressure power change and by the way of self-regulation volume, thus keeping away Exempt from the problem of cold drawing deformation failure under difference variation.

In the present embodiment, one end that described passage 4313 is located at described hollow cavity 431 is top；Described first Spacing 4311 are located at the middle part of described hollow cavity 431 to constitute a upper limit site；Described second spacing 4312 is located at described The other end of hollow cavity 431 is bottom to constitute limit point, described elastic component 48 be a spring its be located at described In hollow cavity 431；In order to ensure reliability service of the present utility model, also seal as figure is provided with the first sealing ring 45, second Circle the 46, the 3rd sealing ring 49；During room temperature, described elastic component 48 is in free state, and now, the position of slide block 47 is in initial bit Put, passage 4313 and ft connection, to keep hollow cavity 431 internal gas pressure to stabilize to atmospheric pressure, and guarantee slide block 47 Normal slip.

In the case of known variant temperature delta t with volume v, when temperature from ambient is increased to maximum storage temperature, liquid Volume become big, variable quantity is δ v₁, when temperature from ambient is reduced to minimum storage temperature, the volume of liquid diminishes, variable quantity For δ v₂；Assume slide block 47 from initial position slide into first spacing 4311 be upper limit volume be δ v₃, slide block 47 is from initial Position slide into second spacing 4312 be lower limit volume be δ v₄；

According to slide block 47 stressing conditions in the state of the equilibrium: atm s+k l=p s, in formula, s is slide block 47 and liquid The surface area of body contact, l is the distance that slide block 47 slides, i.e. the displacement of elastic component 48 spring elongation or compression, and k is elastic component The coefficient of elasticity of 48 springs, p is the pressure of liquid in closing space；

During room temperature, elastic component 48 spring is in free state, does not have displacement, then l=0, and during temperature change, liquid volume becomes Change and lead to parameter p to change, cause slide block 47 to slide, parameter l changes, until reaching balance again, during this, cold drawing is all the time Stress, and becoming larger, in order to ensure that cold drawing do not destroy it is necessary to meet: 1, slide block can move, i.e. δ v₁≤δv₃, δ v₂≤ δv₄；2nd, cold drawing deformation when stress be less than Materials Yield Limit σ s, can arrange coefficient be 0.8, that is, meet atm s+k l≤ 0.8 σ s s, in order to ensure that during room temperature, slide block 47 can return to initial position under elastic component 48 spring effect, k takes as far as possible Limit.

In the present embodiment, the material of cold drawing is aluminium (rustproof aluminum alloy 2a12-h112, gb/t3880-1997), tables look-up and can bend Take limit σ s=400mpa, cooling medium is the alcoholic solution of volume ratio 70%, tables look-up and can obtain coefficient of volume expansion γ=1.1x10^-3, room 25 DEG C of temperature, 60 DEG C of maximum storage temperature, -45 DEG C of minimum storage temperature, during room temperature the volume of closing space be v=500ml it is known that δv₁=19.25 ml, δ v₂=32 ml.The face area s=10mm of movable valve plug², by δ v₁≤δv₃, δ v₂≤δv₄Can Know, δ v₃Corresponding displacement is not less than 1.925mm, δ v₄Corresponding displacement is not less than 3.2mm, the initial position of movable slider 47 For the upper surface of movable slider 47 is not less than 1.925mm apart from upper limit 4311, and the lower surface of movable slider 47 is apart from lower limit 4312 are not less than 3.2mm, from formula atm s+k l≤0.8 σ s s, k≤16.6 n/mm during high temperature, k during low temperature ≤ 10 n/mm, take rigidity k=10 n/mm, and so far fluid connector design completes.

Although content of the present utility model has been made to be discussed in detail by above preferred embodiment, but it should be appreciated that on The description stated is not considered as to restriction of the present utility model.After those skilled in the art have read the above, for Multiple modifications and substitutions of the present utility model all will be apparent from.Therefore, protection domain of the present utility model should be by appended Claim limiting.

Claims

1. a kind of adjustable fluid adapter, it comprises shell (41), the fixed spool (43) being arranged in shell (41), moving valve Core (42) and spring (44) it is characterised in that:

There is in described fixed spool (43) hollow cavity being provided with first spacing (4311) and second spacing (4312) , and this hollow cavity (431) has the passage (4313) of one and ft connection (431)；

Slide block (47), is arranged in the hollow cavity (431) of described fixed spool (43) and spacing positioned at described first (4311) and second spacing (4312) between；

Elastic component (48), its one end props up described slide block (47), and the other end props up shell (41).

2. adjustable fluid adapter as claimed in claim 1 it is characterised in that:

During room temperature, described elastic component (48) is in free state.

3. adjustable fluid adapter as claimed in claim 1 it is characterised in that:

Described passage (4313) is located at one end of described hollow cavity (431)；

First described spacing (4311) are located at the middle part of described hollow cavity (431)；

Second described spacing (4312) are located at the other end of described hollow cavity (431).

4. adjustable fluid adapter as claimed in claim 1 it is characterised in that:

Described movable valve plug (42) is arranged in fluid intake one end of described shell (41) and is located at described fixed spool (43) And shell (41) inwall between；

Described spring (44) is arranged in described shell (41) and is located between described fixed spool (43) and shell (41) inwall, And this spring (44) one end props up described movable valve plug (42), the other end props up described shell (41).

5. adjustable fluid adapter as claimed in claim 3 it is characterised in that:

Described elastic component (48) is located in described hollow cavity (431).

6. adjustable fluid adapter as claimed in claim 1 it is characterised in that:

The external diameter of described slide block (47) is mated with the internal diameter of described hollow cavity (431).