CN208281573U - Fluid control components - Google Patents

Abstract

The utility model discloses a kind of fluid control components, including heat exchange core body, mounting blocks and valve hole part, and the mounting blocks are welded and fixed with the heat exchange core body；Valve hole part is at least partially disposed at the first installation duct, and first installation duct include the first subchannel and the second subchannel, first the first duct of subchannel relative proximity, the second subchannel are relatively distant from the first duct, valve hole part one-way conduction or the first subchannel of unidirectional truncation and the second subchannel.By the setting of mounting blocks and valve hole part, so that the function that fluid control components are integrated with one-way conduction and are unidirectionally truncated, avoids the problem of easily causing leakage by piping connection, so that the leakproofness of fluid control components is preferable.

Description

Fluid control components

Technical field

The utility model relates to refrigerating field more particularly to a kind of fluid control components.

Background technique

In refrigeration systems, the refrigerant that compressor comes out can pass through expansion valve, heat exchanger be entered after throttling, but compressing It is easy, to avoid the occurrence of reflux, to generally require and increase unidirectionally in pipeline there are refrigerant backflow phenomenon when machine on-off Valve, check valve and other components are easy to appear leak point in piping connection point, influence to seal generally by piping connection Property.

Utility model content

The purpose of this utility model is to provide a kind of fluid control components, the fluid control components leakproofness is preferable.

To achieve the above object, a kind of fluid control components, including heat exchange core body and installation are adopted the following technical scheme that Block, first duct of heat exchange core body；The mounting blocks are welded and fixed with the heat exchange core body, and the mounting blocks include the first peace Fill duct, the first installation duct and first hole link；

The fluid control components include valve hole part, and the valve hole part is at least partially disposed at first mounting hole Road, and first installation duct includes the first subchannel and the second subchannel, the described in the first subchannel relative proximity One duct, second subchannel are relatively distant from first duct, first subchannel and first hole link, institute Stating valve hole part includes intercommunicating pore and closure, the intercommunicating pore be located at first subchannel and second subchannel it Between；The intercommunicating pore and second subchannel or the conducting intercommunicating pore is truncated in the closure and intercommunicating pore cooperation With second subchannel.

Above-mentioned technical proposal passes through the setting of mounting blocks and valve hole part, so that fluid control components are integrated with one-way conduction The function being unidirectionally truncated, avoids the problem of easily causing leakage by piping connection, so that the sealing of fluid control components Property is preferable.

Detailed description of the invention

Fig. 1 is a kind of schematic perspective view of embodiment of the utility model；

Fig. 2 is the diagrammatic cross-section of structure shown in Fig. 1；

Fig. 3 is the part perspective view of the explosion of structure shown in Fig. 1；

Fig. 4 is the diagrammatic cross-section of another embodiment；

Fig. 5 is the enlarged diagram of part A shown in Fig. 4；

Fig. 6 is the structural schematic diagram of the first fixing piece shown in Fig. 4；

Fig. 7 is the enlarged diagram of the utility model another embodiment location A shown in Fig. 4；

Fig. 8 is the structural schematic diagram of the first fixing piece shown in Fig. 7；

Fig. 9 is the partial cutaway schematic of another embodiment of the utility model；

Figure 10 is the partial cutaway schematic of the utility model another embodiment；

Figure 11 is the partial cutaway schematic of another embodiment of the utility model；

Figure 12 is the partial cutaway schematic of the utility model other embodiments；

Figure 13 is the structural schematic diagram of valve hole part shown in Fig. 4；

Figure 14 is the schematic top plan view of spool shown in Fig. 4, and for the structure of more clearly prominent recirculation hole, protrusion is omitted Portion's structure.

Specific embodiment

- Fig. 3 referring to Fig.1, Fig. 1 illustrate that a kind of structure chart of fluid control components, the fluid control components can be applied In vehicle air-conditioning systems or vehicle heat management system, fluid control components 10 include heat exchange core body 1, mounting blocks 2 and spool Component 3, heat exchange core body 1 are welded and fixed with mounting blocks 2, and valve hole part 3 and the limit of mounting blocks 2 are arranged.

Heat exchange core body 1 includes multiple plates, and plate includes the first plate and the second plate, the first plate and the second plate according to The first circulation passage 11 of secondary alternately laminated rear formation and the second circulation passage 14, in addition to the two panels plate near side, most plates Side be the first circulation passage a part, the other side be the second circulation passage a part, such as one first plate and with this One of adjacent second plate of two panels of plate forms a part of the first circulation passage, that then shape with another second plate At a part of the second circulation passage, the first circulation passage and the second circulation passage are not communicated with.Heat exchange core body 1 includes the first duct 12 and second duct 13, wherein the first duct 12, the second duct 13 are connected to the first circulation passage 11.

Mounting blocks 2 include the first installation duct 21 and the second installation duct 21 ', and first installs duct 21 and the first duct 12 Connection, the second installation duct 21 ' are connected to the second duct 13；Duct 21 ' is installed through mounting blocks in the first installation duct 21, second 2.Fluid control components 10 include valve hole part 3, and valve hole part 3 is at least partially disposed at the first installation duct 21, and the first peace Filling duct 21 includes the first subchannel 211 and the second subchannel 212, and 211 the first duct of relative proximity 12 of the first subchannel is described First subchannel and first hole link, the second subchannel 212 are relatively distant from the first duct 12, and valve hole part 3 is unidirectionally led Logical or the first subchannel 211 of unidirectional truncation and the second subchannel 212.Term truncation is not limited to the case where fluid flow is zero, wraps The case where flow for including in error range is considered as zero.

Mounting blocks 2 include the first limiting section 222,223 and of the first auxiliary section for being set to 21 wall portion 22 of the first installation duct Second limiting section 224, the first limiting section 222, the first auxiliary section 223 and the second limiting section 224 are wholely set, the first limiting section 222 and second limiting section 224 be located at the two sides of the first auxiliary section 223；Valve hole part 3 cooperates including the first positioning region 315, second Portion 316, the first positioning region 315 contact setting adjacent to the first limiting section 222 or with the first limiting section 222, the second auxiliary section 316 with First auxiliary section 223 cooperates, and 223 sealed set of the second auxiliary section 316 and the first auxiliary section, second limiting section 224 include the first fixing piece 4 with the valve hole part 3 limit setting or the fluid control components 10, and described first is fixed Part 4 and second limiting section 224 limit are arranged, and first fixing piece and the valve hole part 3 limit are arranged.As other Embodiment, the fluid control components include at least the first fixing piece and the second fixing piece, first fixing piece with it is described The limit setting of second limiting section, and the first fixing piece and valve hole part limit are arranged, second fixing piece and described the The limit setting of one limiting section, and the second fixing piece and first positioning region limit are arranged.Herein, although the figure illustrated The first limiting section in showing from the structure of the second limiting section be it is different, it will be appreciated that the first limiting section and the second limiting section It may be set to be similar or identical structure.Although attached drawing does not illustrate the implementation that the first fixing piece and the second fixing piece is arranged Example, it is to be understood that, the various embodiments of the first fixing piece are equally applicable to the second fixing piece.

First auxiliary section 223 extends to second limiting section 224 from first limiting section 222, and described first Auxiliary section 223 includes straight position 35, groove position 33, and straight position 35 and the second auxiliary section cooperate, and the control valve includes The sealing ring 34 is arranged in sealing ring 34, the groove position.The setting that second auxiliary section is sealed with the first auxiliary section can lead to It crosses and opens up slot in valve hole part, to realize for placing sealing ring, slot can also be opened up by installing duct wall portion first, To be realized for placing sealing ring.More specifically, the mounting blocks 2 are an integral molding structure, one described herein Molding structure is wholely set and is integrated processing structure, such as formed by modes such as die casting, injection molding or demouldings.

Herein, positioning region includes positioning surface, position line or anchor point, and positioning refers to the first positioning region/second positioning Positioning between portion's component engaged therewith.First limiting section 222, the first auxiliary section 223 and the second limiting section 224 are integrally set It sets, so that mounting blocks and spool cooperation position are integrated setting, needs to weld bring leakage risk, raising group when reducing assembling The leakproofness of part.

As an implementation, referring to Fig. 4, Fig. 5, Fig. 6, fluid control components 10 include the first fixing piece 4, and described the Two limiting sections 224 include the structure in slot or well format, and the first fixing piece 4 is at least partially disposed at the second limiting section 224, and first Fixing piece 4 includes peripheral portion 41 and the second positioning region 42, and valve hole part 3 includes third positioning region 313,313 phase of third positioning region Compared with being relatively distant from the first duct 12, peripheral portion 41 and 224 phase of the second limiting section of the first fixing piece 4 for the first positioning region 315 To setting, and the peripheral portion 41 offsets with the second limiting section 224, (for convenient for clearly showing that peripheral portion 41 and the second limiting section 224 Structure be provided with gap between peripheral portion 41 and the second limiting section 224 in Fig. 2) the second positioning region of the first fixing piece 4 The third positioning region 313 of 42 relative orientation valve hole parts 3, and the second positioning region 42 at least partly with 313 phase of third positioning region To setting or neighbouring setting.Herein, neighbouring setting includes that two components contact with each other or close to setting (i.e. phase between two components Do not exert a force mutually) or two components between have a certain distance.More specifically, the first fixing piece is in the form of similar retaining ring, the Two limiting sections 224 include locating slot 2241, and the internal diameter of locating slot 2241 is greater than the outer diameter of valve hole part 3,4 side of the first fixing piece Portion 41 is opposite with the bottom wall part 2240 of locating slot 2241 and abuts setting.When assembling, mounting blocks and core first pass through the sides such as furnace weldering Formula is fixed, and valve hole part is then placed in mounting blocks again, and limit by the first fixing piece 4, so easy to assembly, and mounting blocks It is fixed with core by modes such as furnace welderings, the two stable structure, runner leakproofness is stronger, helps to promote integrally-built stabilization Performance.

As another embodiment, in conjunction with referring to Fig. 7 and Fig. 8, the second limiting section 224 includes at least two locating slots 2241, the first fixing piece 4 ' includes body part 43 and at least two protrusions 44, and protrusion 44 is radially disposed at outside body part 43 Week, each protrusion 44 cooperate with locating slot 2241, and protrusion 44 is at least partially disposed at locating slot 2241, the first fixing piece 4 ' Peripheral portion 41 be located at protrusion 44, peripheral portion 41 is opposite with the second limiting section 224 and abuts setting, the second of the first fixing piece 4 ' Positioning region 42 includes the first positioning subdivision 421 and the second positioning subdivision 422, and the first positioning subdivision 421 is located at protrusion, the Two positioning subdivisions 422 are located at body part 43, and the second positioning subdivision 422 is opposite with third positioning region 313 and abuts setting.

As another embodiment, referring to Fig. 9, Figure 10, first fixing piece 4a, 4b is with the shape of similar pin or pressing plate Formula, the second limiting section 224 include at least two location holes 2242, first fixing piece 4a, 4b two or more, each first is solid Determine each location hole 2242 that is at least partially disposed at of part 4a, 4b, first fixing piece 4a, 4b includes the second positioning region 42, the second positioning Portion 42 includes the first positioning subdivision 421 and the second positioning subdivision 422, and the first positioning subdivision 421 is located at location hole 2242, Second positioning subdivision 422 is opposite with third positioning region 313 and abuts setting.It is to be appreciated that as shown in Figure 9 and Figure 10, first The position of fixing piece 4a, 4b setting the second positioning subdivision 422 can be located at the outside of the valve hole part 3, can also be located at The inside of the valve hole part 3.

More specifically, fluid control components 10 further include sealing element 5, and sealing element 5 is at least partially disposed at location hole 2242, location hole 2242 is through hole, and a part of first fixing piece 4a, 4b and third positioning region 313 are opposite, the first fixing piece 4a, 4b another part protrude into location hole 2242, and first fixing piece 4a, 4b at least partly offsets with sealing element 5, and sealing element 5 The wall portion sealed set of location hole 2242 is formed with mounting blocks 2, such as by the way that the forms such as sealing ring are arranged in sealing element periphery.It is close The setting of sealing helps to ensure that the leakproofness of location hole, and fluid is avoided to reveal here.

As other embodiments, referring to Fig.1 1, second limiting section 224 includes thread segment 2243, the spool portion Part 3 includes third positioning region 313, and the third positioning region 313, which is compared, is relatively distant from described for first positioning region 315 One duct 12, along the axial direction in first installation duct 21, the end of the thread segment 2243 is determined from the third 313 flush position of position portion extends towards the opposite direction away from first duct 12；The fluid control components 10 include the One fixing piece 4c, the first fixing piece 4c has the screw thread position 45 cooperated with the thread segment 2243, and described first is solid Determining part 4c includes the second positioning region 42, and second positioning region 42 offsets with the third positioning region 313.

As other embodiments, referring to Fig.1 2, along the axial direction in first installation duct 21, described first matches Conjunction portion 223 include at least two sub- matching parts 2230, second limiting section 224 be located at the sub- matching part 2230 it Between, second limiting section 224 includes at least one protrusion 2244, and duct 21 is installed towards described first in the protrusion 2244 Centerline direction protrudes out, and the distance between the bottom 2245 of the protrusion 2244 and the first installation 21 center line of duct are less than Between the adjacent sub- matching part 2230 and the first installation 21 center line of duct of second limiting section 224 away from From.

The valve hole part of check valve can be integrated on mounting blocks by above embodiment, reduce connection check valve and heat exchange The connector of core and attached components, reduce production cost and installation cost.In addition, the installation of above embodiment is more Add that simple, time saving, installation is more reliable, reduces the disclosure risk of piping connection, the pressure of additional seal junction is reduced in performance Power loss, reduces a possibility that fluid generates noise.In addition, helping to improve fluid after valve hole part and mounting blocks fixed setting The intensity of control assembly, and structure is more compact.

Referring to Fig. 4, Fig. 5, Figure 13, Figure 14, valve hole part 3 includes spool 31 and piston rod assembly 32, and spool 31 is first The setting of 21 positioned internal of duct is installed, piston rod assembly 32 can be moved axially with respect to spool 31, wherein it is axial be defined as along The extending direction in the first installation duct.The spool includes intercommunicating pore, and the intercommunicating pore is located at first subchannel and second Between subchannel；The intercommunicating pore and second subchannel or conducting is truncated in the piston rod assembly and spool cooperation The intercommunicating pore and second subchannel.Specifically, spool 31 is provided with the first middle through-hole 312, and piston rod assembly 32 is stretched Enter first middle through-hole 312 and can be moved axially with respect to the spool 31, so that the conducting of valve hole part 3 or the first son of blocking are logical Road 211 and the second subchannel 212.

The valve hole part includes spool and piston rod assembly, and the spool is arranged in the installation duct positioned internal, The relatively described spool of the piston rod assembly can move axially；The spool setting third positioning region, described first Fixing piece includes the second middle through-hole, and first fixing piece covers outside the piston rod assembly, second positioning region At least partly offset with the third positioning region setting or neighbouring setting.

In a kind of specific embodiment, the first positioning region 315, the second auxiliary section 316 are set to spool 31, spool 31 At least two intercommunicating pores 314 are set, and intercommunicating pore 314 is connected to the first subchannel 211, the conducting of piston rod assembly 32 or blocking connection Hole 314 and the second subchannel 212.

More specifically, spool 31 includes matrix part 311 and lug boss 317, and matrix part 311 includes 3111 He of the first side Second side 3112, the 3111 relative proximity import 23 of the first side, the second side 3112 is relatively distant from import 23, lug boss 317 It is protruded out from the direction of the first side 3111 towards import 23 of matrix part 311, matrix part 311 and the first installation 21 wall portion 22 of duct It is equipped with.

The intercommunicating pore 314 is arranged in matrix part 311, and intercommunicating pore 314 runs through matrix part 311, and intercommunicating pore 314 and the first son Channel 211 is connected, and intercommunicating pore 314 is distributed in the circumference of the first middle through-hole 312, and intercommunicating pore 314 is not logical with the first middle part Hole 312 is connected to.Matrix part 311 includes connection aperture 3140, and connection aperture 3140 is located at the second side 3112 of matrix part 311, And definition connection aperture 3140 is the port of intercommunicating pore 314, the center line in definition connection aperture 3140 and the first middle through-hole 312 The distance between be D；

Piston rod assembly 32 includes piston rod 321, elastic component 322 and convex extension part 323,323 phase of elastic component 322 and convex extension part To be located at 321 two sides of piston rod, and be located at spool 31 both sides.

322 sets of elastic component outside a part of piston rod 321, one end of elastic component 322 and lug boss 317 are clamped, bullet The other end of property part 322 is limited in the end of piston rod 321.Elastic component 322 can be along the axial direction pressure of the piston rod 321 Contracting or elongation, piston rod 321 can be removable with respect to spool.Herein, the end of piston rod 321 includes the end of piston rod 321 And the position apart from end certain distance, it is not limited to terminal part.

First limiting section and the elastic component are located at the same side position of the valve hole part, in this way, through heat exchange core The fluid that body comes out exerts a force to elastic component, so that the first subchannel and the connection of the second subchannel, same side position refers to phase herein For the center line of valve hole part, the two is located at the same side of the center line of valve hole part, and the center line of valve hole part includes Along the center line in the direction in the direction and substantially vertical first installation duct in the first installation duct, referred to herein as substantially vertical the The center line in one installation duct.

As another embodiment, piston rod assembly 32 includes circlip 324, and groove is arranged in 321 end position of piston rod 3211, circlip 324 is limited in the groove 3211, and the end of elastic component 322 offsets with circlip 324.

The size of convex extension part 323 be greater than the first middle through-hole 312, convex extension part 323 have the first sealing position 3231, first Sealing position 3231 is provided with the second sealing towards the second side 3112 of matrix part 311, the second side 3112 of matrix part 311 Position 3113, the first sealing position 3231 can contact setting with the second sealing position 3113；First sealing position 3231 is extremely The distance between small part and center line of the first middle through-hole 312, which are greater than, is connected to aperture 3140 and the first middle through-hole 312 The distance between center line D, such first sealing position can block the conducting in connection aperture and the second subchannel.First is close herein Sealing between envelope position and the second sealing position can be sealed by linear sealing or face to realize.

It is to be appreciated that being at least partly greater than with the distance between the center line of the first middle through-hole for the first sealing position connects The distance between the center line of openings and the first middle through-hole D is included in valve hole part circumferential direction, the first sealing position tool Have and compares with a distance from center line of the connection aperture from the first middle through-hole farther part and apart from closer or the same part.

More specifically, protruding portion 3114 is arranged in the second side 3112 of matrix part 311, and protruding portion 3114 is located at intercommunicating pore The outer region of mouth 3140, protruding portion 3114 matches setting with the first sealing position 3231, prominent in the case where not stressing Portion offsets with the first sealing position.

Piston rod 321 has first position and the second position with respect to spool, when piston rod 321 is located at first position, first Sealing position 3231 is contacted with the second sealing position 3113 and sealed set, and intercommunicating pore 314 is not connected to the second subchannel 212. When piston rod 321 is located at the second position, there are gap, intercommunicating pores between the first sealing position 3231 and the second sealing position 3113 314 are connected to the second subchannel 212.

Convex extension part 323 includes closure 3232 and supporting part 3233, and 3232 self-supporting portion 3233 of closure circumferentially extends convex Out, the first sealing position 3231 is arranged in closure 3232.As an implementation, closure 3232 and supporting part 3233 are one Body setting, closure 3232 protrude from the setting of supporting part 3233.Herein, closure refers to real after the portion and other parts cooperate Existing closing function, enclosed construction pattern can be face closure form, or line closing form, or may be bumps The fit forms such as structure or other various structures for realizing closing function.As another embodiment, closure 3232 with Supporting part 3233 is split settings, and closure 3232 includes closure member 3234 and casting die 3235, and the setting first of closure member 3234 is close Position 3231 is sealed, closure member 3234 is placed on the end of supporting part 3233, and casting die 3235 and the assembling of closure member 3234 are fixed, such as logical Cross the modes such as riveting.Herein, being wholely set indicates that component is formed by being integrally formed, and split settings indicate that component is logical Excessively body formed formation, split settings are for the independent form of component, it is not excluded that component is assembled integrally structure.

Mounting blocks 2 include the first aperture 23 and the second aperture 24, and the first aperture 23 is connected to the first duct 12, the first limit Portion 222 have inside 2221 and outside 2222, wherein inner side and outer side be relative to first installation duct 21 center line for, The center line in duct is installed in the inside relative proximity first of defined herein first limiting section, is relatively distant from the outside of the first limiting section The center line in the first installation duct, as a kind of specific embodiment, mounting blocks 2 form the wall portion and first in the first aperture 23 The distance between the center line in duct 21 L1 is installed and is greater than the inside 2221 of the first limiting section and the center in the first installation duct 21 The distance between line L2, mounting blocks 2 include being set to the guide part 221 of 21 wall portion 22 of the first installation duct, and guide part 221 is from the One limiting section 222 towards the first aperture 23 be extended, in addition to the point being connect with the first limiting section, on guide part 221 everywhere with The distance between the center line in the first installation duct 21 is greater than the center of the inside and the first installation duct 21 of the first limiting section 222 The distance between line L2.Herein, it defines the first installation duct and is presented at 2 inside of valve body by spool is unassembled, in valve After core is installed on the first installation duct, the center line in duct is installed in the inside relative proximity first of the first limiting section, and herein first The center line in the first installation duct, mentions the first installation duct herein when the center line for installing duct is unassembled spool state Center line makees above-mentioned understanding.

As another specific embodiment, mounting blocks form wall portion and the center in the first installation duct in the first aperture The distance between the center line that duct is installed with first in the inside that the distance between line L1 is substantially equal to the first limiting section L2, herein Define substantially ± 5% numberical range.

When fluid control components are filled with fluid, fluid is flowed into from the second installation duct 21 ', and passes through the second hole Road 13, first fluid channel 11, the first duct 12, fluid exert a force to piston rod assembly, so that piston rod assembly is made with respect to spool It is axially moved, fluid enters the second subchannel by the intercommunicating pore of spool, and flows out from the second aperture.

As a kind of specific embodiment, valve hole part 2 is at least partially disposed at the first duct 12, can so reduce The height of mounting blocks.

As another specific embodiment, valve hole part 2 is located at the first installation duct 21, and valve hole part 2 does not protrude into First duct 12, does not influence the flow direction of the intracorporal fluid of heat exchange core.

First duct and the second duct are located at the same side position of heat exchange core body, and certain first duct and the second duct may be used also Positioned at the diagonal position of heat exchange core body.

It should be understood that above embodiments are merely to illustrate the utility model and not limit described by the utility model Technical solution, such as "front", "rear", "left", "right", "upper", "lower" isotropy are defined, although this specification reference The above embodiments have been carried out detailed description to the utility model, still, those skilled in the art should understand that, Person of ordinary skill in the field still can be combined with each other the utility model, modify or equivalent replacement, and one The technical solution and its improvement for cutting the spirit and scope for not departing from the utility model, the right that should all cover in the utility model are wanted It asks in range.

Claims (16)

1. a kind of fluid control components, including heat exchange core body and mounting blocks, the heat exchange core body includes the first duct；The installation Block is welded and fixed with the heat exchange core body, and the mounting blocks include the first installation duct, the first installation duct and described the One hole link；

The fluid control components include valve hole part, and the valve hole part is at least partially disposed at first installation duct, And first installation duct includes the first subchannel and the second subchannel, the first hole described in the first subchannel relative proximity Road, second subchannel are relatively distant from first duct, first subchannel and first hole link, the valve Core components include intercommunicating pore and closure, and the intercommunicating pore is between first subchannel and second subchannel；Institute It states closure and the intercommunicating pore and second subchannel or the conducting intercommunicating pore and institute is truncated in intercommunicating pore cooperation State the second subchannel.

2. fluid control components according to claim 1, it is characterised in that: the mounting blocks include being set to described first The first limiting section, the first auxiliary section and the second limiting section of duct wall portion, first limiting section, first auxiliary section are installed It is wholely set with second limiting section；The valve hole part includes the first positioning region, the second auxiliary section, first positioning region Neighbouring first limiting section setting or first positioning region contact setting, second auxiliary section with first limiting section It cooperates with first auxiliary section, and second auxiliary section and first auxiliary section sealed set；

Second limiting section and valve hole part limit are arranged；Alternatively, the fluid control components include the first fixing piece, First fixing piece and second limiting section limit are arranged, and first fixing piece and valve hole part limit are arranged； Or the fluid control components include at least the first fixing piece and the second fixing piece, first fixing piece and second limit The limit setting of position portion, and first fixing piece and valve hole part limit are arranged, second fixing piece and described first Limiting section limit setting, and second fixing piece and first positioning region limit are arranged.

3. fluid control components according to claim 2, it is characterised in that: the fluid control components include first fixed Part, second limiting section include the structure in slot or well format, and first fixing piece is at least partially disposed at described second Limiting section, first fixing piece include peripheral portion and the second positioning region, and the valve hole part includes third positioning region, and described Three positioning regions are relatively distant from first duct, the peripheral portion of first fixing piece and institute for comparing first positioning region It states the second limiting section to be oppositely arranged, third positioning region described in the relative orientation of second positioning region, and second positioning region At least partly offset with the third positioning region setting or neighbouring setting.

4. fluid control components according to claim 3, it is characterised in that: second limiting section includes locating slot, institute The internal diameter for stating locating slot is greater than the outer diameter of the valve hole part, the bottom wall part of first fixing piece peripheral portion and the locating slot Opposite and abutting setting.

5. fluid control components according to claim 3, it is characterised in that: second limiting section includes at least two fixed Position slot, first fixing piece includes body part and at least two protrusions, and the protrusion is radially disposed at the body part Periphery, each protrusion and the locating slot cooperate, and the protrusion is at least partially disposed at the locating slot, and described the The peripheral portion of one fixing piece is located at the protrusion, and the peripheral portion is opposite with second limiting section and abuts setting, and described the Second positioning region of one fixing piece includes the first positioning subdivision and the second positioning subdivision, and the first positioning subdivision is located at The protrusion, the second positioning subdivision are located at the body part, the second positioning subdivision and the third positioning region Opposite and abutting setting.

6. fluid control components according to claim 2 or 3, it is characterised in that: second limiting section includes at least two A location hole, first fixing piece are two or more, and being at least partially disposed at for each first fixing piece is each described Location hole, first fixing piece include the second positioning region, and second positioning region includes that the first positioning subdivision and second are fixed Seat part, the first positioning subdivision are located at the location hole, the second positioning subdivision and the third positioning region Opposite and abutting setting.

7. fluid control components according to claim 2, it is characterised in that: along the axial direction side in first installation duct Include at least two sub- matching parts to, first auxiliary section, second limiting section between the sub- matching part, Second limiting section includes at least one protrusion, and the centerline direction in the protrusion towards first installation duct protrudes out, The institute that the distance between duct center line is less than and second limiting section is adjacent is installed with described first in the bottom of the protrusion State the distance between sub- matching part and the first installation duct center line.

8. fluid control components according to claim 2, it is characterised in that: second limiting section includes thread segment, institute Stating valve hole part includes third positioning region, and the third positioning region is relatively distant from described first for comparing first positioning region Duct, along the axial direction in first installation duct, the end of the thread segment is from position concordant with the third positioning region It sets towards the opposite direction away from first duct and extends；The fluid control components include the first fixing piece, described first Fixing piece has the screw thread position that cooperate with the thread segment, and first fixing piece includes the second positioning region, and described second Positioning region and the third positioning region offset or neighbouring setting.

9. the fluid control components according to any one of claim 2-5 or 7 or 8, it is characterised in that: the heat exchange core body Including the second circulation passage, first circulation passage and second circulation passage are not communicated with；First circulation passage is also Including the second duct, the mounting blocks include the second installation duct, the second installation duct and second hole link；Institute It states mounting blocks to be structure as a whole, the mounting blocks include the first aperture and the second aperture, first aperture and first hole Road connection, first limiting section has inner side and outer side, wherein the inner side and outer side is relative to first mounting hole For the center line in road, the center line in the installation of inside relative proximity first duct of definition first limiting section, described first The center line in first installation duct is relatively distant from the outside of limiting section, the mounting blocks form the wall portion in first aperture The distance between the center line in first installation duct L1 is greater than the inside of first limiting section and described first and installs The distance between the center line in duct L2, the mounting blocks include the guide part for being set to the first installation duct wall portion, institute It states guide part and is extended from first limiting section towards first aperture, except the point being connect with first limiting section Outside, the distance between the center line on the guide part everywhere with first installation duct is greater than in first limiting section The distance between the center line of side and first installation duct L2；The valve hole part is located at the first duct, the spool portion Part does not protrude into the first duct, and first duct and second duct are located at the same side position of the heat exchange core body.

10. fluid control components according to claim 6, it is characterised in that: the heat exchange core body include second all Road, first circulation passage and second circulation passage are not communicated with；First circulation passage further includes the second duct, institute Stating mounting blocks includes the second installation duct, the second installation duct and second hole link；The mounting blocks are integrated Structure, the mounting blocks include the first aperture and the second aperture, first aperture and first hole link, and described first Limiting section have inner side and outer side, wherein the inner side and outer side be relative to it is described first installation duct center line for, The center line in duct is installed in the inside relative proximity first for defining first limiting section, and the outside of first limiting section is opposite Far from it is described first installation duct center line, the mounting blocks formed first aperture wall portion and first mounting hole The distance between the center line in road L1 is greater than between the inside of first limiting section and the center line in first installation duct Distance L2, the mounting blocks include the guide part for being set to the first installation duct wall portion, and the guide part is from described the One limiting section is extended towards first aperture, each on the guide part in addition to the point connecting with first limiting section The distance between place and the center line in first installation duct are greater than the inside of first limiting section and first installation The distance between the center line in duct L2；The valve hole part is located at the first duct, and the valve hole part does not protrude into the first duct, First duct and second duct are located at the same side position of the heat exchange core body.

11. the fluid control components according to any one of claim 2-5 or 7 or 8, it is characterised in that: the heat exchange core Body includes the second circulation passage, and first circulation passage and second circulation passage are not communicated with；First circulation passage It further include the second duct, the mounting blocks include the second installation duct, the second installation duct and second hole link； The valve hole part includes spool and piston rod assembly, and the spool is arranged the intercommunicating pore, and the mounting blocks form described the The distance between the wall portion in one aperture and the center line in first installation duct L1 are substantially equal to the interior of first limiting section The distance between the center line of side and first installation duct L2, the valve hole part are at least partially disposed at the first duct； First duct and second duct are located at the diagonal position of the heat exchange core body；

The spool is provided with the first middle through-hole and at least two in the first installation duct positioned internal setting, the spool A intercommunicating pore, the piston rod assembly protrudes into first middle through-hole and the relatively described spool can move axially, described The third positioning region is arranged in spool, and first fixing piece includes the second middle through-hole, and first fixing piece is covered described Outside piston rod assembly, at least partly offset with the third positioning region setting or the neighbouring setting of second positioning region.

12. fluid control components according to claim 6, it is characterised in that: the heat exchange core body include second all Road, first circulation passage and second circulation passage are not communicated with；First circulation passage further includes the second duct, institute Stating mounting blocks includes the second installation duct, the second installation duct and second hole link；The valve hole part includes The intercommunicating pore is arranged in spool and piston rod assembly, the spool, and the mounting blocks form wall portion and the institute in first aperture State the distance between the center line in the first installation duct L1 be substantially equal to first limiting section inside and it is described first installation The distance between the center line in duct L2, the valve hole part are at least partially disposed at the first duct；First duct and institute State the diagonal position that the second duct is located at the heat exchange core body；

The spool is provided with the first middle through-hole and at least two in the first installation duct positioned internal setting, the spool A intercommunicating pore, the piston rod assembly protrudes into first middle through-hole and the relatively described spool can move axially, described The third positioning region is arranged in spool, and first fixing piece includes the second middle through-hole, and first fixing piece is covered described Outside piston rod assembly, at least partly offset with the third positioning region setting or the neighbouring setting of second positioning region.

13. fluid control components described in any one of -5 or 7 or 8 or 10 or 12 according to claim 1, it is characterised in that:

The valve hole part includes spool and piston rod assembly, and the relatively described spool of the piston rod assembly can be along the mounting hole The axial direction in road is mobile, and the intercommunicating pore is arranged in the spool, and the spool is set in the first installation duct positioned internal Set, the piston rod assembly includes the convex extension part, the convex extension part and spool cooperation be truncated the intercommunicating pore with it is described Second subchannel；Or there are gap, the intercommunicating pore and second subchannels to connect between the convex extension part and the spool It is logical；

The spool is provided with the first middle through-hole and at least two intercommunicating pores, and the piston rod assembly protrudes into first middle part The through-hole and relatively described spool can move axially, the intercommunicating pore is connected to first subchannel, the piston rod group Part is connected or blocks the intercommunicating pore and second subchannel；

The piston rod assembly includes convex extension part, and the size of the convex extension part is greater than first middle through-hole, the convex extension part With the first sealing position, the spool is provided with the second sealing position, and the first sealing position is opposite with the second sealing position to be set It sets, and the first sealing position can contact setting with the second sealing position；First sealing position at least partly with first middle part The distance between center line of through-hole is greater than the distance between the port of intercommunicating pore and the center line of the first middle through-hole D, described First sealing position can block the conducting of intercommunicating pore and the second subchannel；

The convex extension part includes closure and supporting part, and the closure is circumferentially extended from the supporting part and protruded, the closing First sealing position is arranged in portion；The closure and the supporting part are integrated setting, and the closure protrudes from described Supporting part setting；Or the closure and the supporting part are split settings, the closure includes closure member and casting die, institute It states closure member and first sealing position is set, the closure member is placed on the end of the supporting part, the casting die and the envelope Closing member assembling is fixed；

The relatively described spool of the piston rod assembly has first position and the second position, when the piston rod assembly is positioned at described First position, first sealing position is contacted with second sealing position and sealed set, the intercommunicating pore and described the Two subchannels are not connected to；When the piston rod assembly is located at the second position, first sealing position and described second close It seals between position there are gap, the intercommunicating pore is connected to second subchannel；

The piston rod assembly includes elastic component and piston rod, and first limiting section and the elastic component are located at the spool portion The same side position of part；The elastic component and the convex extension part are located relatively at the piston rod two sides, and are located at the spool Both sides.

14. fluid control components according to claim 6, it is characterised in that:

The valve hole part includes spool and piston rod assembly, and the relatively described spool of the piston rod assembly can be along the mounting hole The axial direction in road is mobile, and the intercommunicating pore is arranged in the spool, and the spool is set in the first installation duct positioned internal Set, the piston rod assembly includes the convex extension part, the convex extension part and spool cooperation be truncated the intercommunicating pore with it is described Second subchannel；Or there are gap, the intercommunicating pore and second subchannels to connect between the convex extension part and the spool It is logical；

The spool is provided with the first middle through-hole and at least two intercommunicating pores, and the piston rod assembly protrudes into first middle part The through-hole and relatively described spool can move axially, the intercommunicating pore is connected to first subchannel, the piston rod group Part is connected or blocks the intercommunicating pore and second subchannel；

The piston rod assembly includes convex extension part, and the size of the convex extension part is greater than first middle through-hole, the convex extension part With the first sealing position, the spool is provided with the second sealing position, and the first sealing position is opposite with the second sealing position to be set It sets, and the first sealing position can contact setting with the second sealing position；First sealing position at least partly with first middle part The distance between center line of through-hole is greater than the distance between the port of intercommunicating pore and the center line of the first middle through-hole D, described First sealing position can block the conducting of intercommunicating pore and the second subchannel；

The convex extension part includes closure and supporting part, and the closure is circumferentially extended from the supporting part and protruded, the closing First sealing position is arranged in portion；The closure and the supporting part are integrated setting, and the closure protrudes from described Supporting part setting；Or the closure and the supporting part are split settings, the closure includes closure member and casting die, institute It states closure member and first sealing position is set, the closure member is placed on the end of the supporting part, the casting die and the envelope Closing member assembling is fixed；

The relatively described spool of the piston rod assembly has first position and the second position, when the piston rod assembly is positioned at described First position, first sealing position is contacted with second sealing position and sealed set, the intercommunicating pore and described the Two subchannels are not connected to；When the piston rod assembly is located at the second position, first sealing position and described second close It seals between position there are gap, the intercommunicating pore is connected to second subchannel；

The piston rod assembly includes elastic component and piston rod, and first limiting section and the elastic component are located at the spool portion The same side position of part；The elastic component and the convex extension part are located relatively at the piston rod two sides, and are located at the spool Both sides.

15. fluid control components according to claim 9, it is characterised in that:

The valve hole part includes spool and piston rod assembly, and the relatively described spool of the piston rod assembly can be along the mounting hole The axial direction in road is mobile, and the intercommunicating pore is arranged in the spool, and the spool is set in the first installation duct positioned internal Set, the piston rod assembly includes the convex extension part, the convex extension part and spool cooperation be truncated the intercommunicating pore with it is described Second subchannel；Or there are gap, the intercommunicating pore and second subchannels to connect between the convex extension part and the spool It is logical；

The spool is provided with the first middle through-hole and at least two intercommunicating pores, and the piston rod assembly protrudes into first middle part The through-hole and relatively described spool can move axially, the intercommunicating pore is connected to first subchannel, the piston rod group Part is connected or blocks the intercommunicating pore and second subchannel；

The piston rod assembly includes convex extension part, and the size of the convex extension part is greater than first middle through-hole, the convex extension part With the first sealing position, the spool is provided with the second sealing position, and the first sealing position is opposite with the second sealing position to be set It sets, and the first sealing position can contact setting with the second sealing position；First sealing position at least partly with first middle part The distance between center line of through-hole is greater than the distance between the port of intercommunicating pore and the center line of the first middle through-hole D, described First sealing position can block the conducting of intercommunicating pore and the second subchannel；

The convex extension part includes closure and supporting part, and the closure is circumferentially extended from the supporting part and protruded, the closing First sealing position is arranged in portion；The closure and the supporting part are integrated setting, and the closure protrudes from described Supporting part setting；Or the closure and the supporting part are split settings, the closure includes closure member and casting die, institute It states closure member and first sealing position is set, the closure member is placed on the end of the supporting part, the casting die and the envelope Closing member assembling is fixed；

The relatively described spool of the piston rod assembly has first position and the second position, when the piston rod assembly is positioned at described First position, first sealing position is contacted with second sealing position and sealed set, the intercommunicating pore and described the Two subchannels are not connected to；When the piston rod assembly is located at the second position, first sealing position and described second close It seals between position there are gap, the intercommunicating pore is connected to second subchannel；

The piston rod assembly includes elastic component and piston rod, and first limiting section and the elastic component are located at the spool portion The same side position of part；The elastic component and the convex extension part are located relatively at the piston rod two sides, and are located at the spool Both sides.

16. fluid control components according to claim 11, it is characterised in that:

The valve hole part includes spool and piston rod assembly, and the relatively described spool of the piston rod assembly can be along the mounting hole The axial direction in road is mobile, and the intercommunicating pore is arranged in the spool, and the spool is set in the first installation duct positioned internal Set, the piston rod assembly includes the convex extension part, the convex extension part and spool cooperation be truncated the intercommunicating pore with it is described Second subchannel；Or there are gap, the intercommunicating pore and second subchannels to connect between the convex extension part and the spool It is logical；

The spool is provided with the first middle through-hole and at least two intercommunicating pores, and the piston rod assembly protrudes into first middle part The through-hole and relatively described spool can move axially, the intercommunicating pore is connected to first subchannel, the piston rod group Part is connected or blocks the intercommunicating pore and second subchannel；

The piston rod assembly includes convex extension part, and the size of the convex extension part is greater than first middle through-hole, the convex extension part With the first sealing position, the spool is provided with the second sealing position, and the first sealing position is opposite with the second sealing position to be set It sets, and the first sealing position can contact setting with the second sealing position；First sealing position at least partly with first middle part The distance between center line of through-hole is greater than the distance between the port of intercommunicating pore and the center line of the first middle through-hole D, described First sealing position can block the conducting of intercommunicating pore and the second subchannel；

The convex extension part includes closure and supporting part, and the closure is circumferentially extended from the supporting part and protruded, the closing First sealing position is arranged in portion；The closure and the supporting part are integrated setting, and the closure protrudes from described Supporting part setting；Or the closure and the supporting part are split settings, the closure includes closure member and casting die, institute It states closure member and first sealing position is set, the closure member is placed on the end of the supporting part, the casting die and the envelope Closing member assembling is fixed；

The relatively described spool of the piston rod assembly has first position and the second position, when the piston rod assembly is positioned at described First position, first sealing position is contacted with second sealing position and sealed set, the intercommunicating pore and described the Two subchannels are not connected to；When the piston rod assembly is located at the second position, first sealing position and described second close It seals between position there are gap, the intercommunicating pore is connected to second subchannel；

The piston rod assembly includes elastic component and piston rod, and first limiting section and the elastic component are located at the spool portion The same side position of part；The elastic component and the convex extension part are located relatively at the piston rod two sides, and are located at the spool Both sides.