CN208900796U - Motor-driven valve - Google Patents

Abstract

A kind of motor-driven valve, including stator module, rotor, casing and valve module, valve module includes spool, stator module includes coil block, stator module is located at the outside of rotor, casing off stator module and rotor, motor-driven valve has valve port, rotor being capable of belt spool valve port movement relatively, motor-driven valve further includes box body and circuit board module, circuit board module is set in box body, motor-driven valve includes contact pin, contact pin includes first group of contact pin, second group of contact pin and third group contact pin, contact pin has pinprick and press-fit portion, there is first group of contact pin one end of pinprick and circuit board module to be fixed by press fitting, the other end stretches out box portion outside；There is second group of contact pin one end of pinprick and circuit board module to be fixed by press fitting, and the other end is fixedly connected with coil block；Third group contact pin one end and circuit board module are fixed by press fitting, and the other end and box body are fixed by injection molding；This programme can simplify technique.

Description

Motor-driven valve

[technical field]

The utility model relates to a kind of fluid control technology fields, and in particular to a kind of flow regulator.

[background technique]

With the raising of the requirement to control precision, motor-driven valve is gradually used as flow regulator.For convenience Control, motor-driven valve include at least circuit board module.Circuit board module is set in box body, and circuit board module passes through welding or screw thread It is connect with box body, circuit board module assembly technology is more complex.

[utility model content]

The purpose of this utility model is to provide a kind of motor-driven valves, simplify the assembly technology of circuit board module.

To achieve the above object, the embodiments of the present invention adopt the following technical scheme that a kind of motor-driven valve, including stator Component, rotor, casing and valve module, the valve module include spool, and the stator module includes coil block, the stator Component is located at the outside of the rotor, and the stator module and the rotor is isolated in described sleeve pipe, and the motor-driven valve has valve port, The rotor is able to drive the relatively described valve port movement of spool, and the motor-driven valve further includes box body and circuit board module, the box Body has cavity, and the circuit board module is placed in the cavity, and the motor-driven valve includes contact pin, and the contact pin is divided into first group Contact pin, second group of contact pin and third group contact pin, first group of contact pin and the box body are fixedly installed, the third group contact pin It is fixedly installed with the box body, second group of contact pin and the stator module are fixedly installed, and the box body includes being oppositely arranged Side wall: the first side wall, third side wall, first group of contact pin are arranged close to the first side wall, and the third group contact pin leans on The nearly third side wall setting；Direction between the first side wall, third side wall, second group of contact pin are set to described Between first group of contact pin and the third group contact pin, first group of contact pin is electrically connected the circuit board module, and for it is outer Portion's connection, second group of contact pin is for connecting the stator module and the circuit board module, and the one of the third group contact pin End is fixedly connected with the box body, and the other end and circuit board module limit are arranged or are fixedly installed, the third group contact pin With the circuit board module without being electrically connected；First group of contact pin includes the first press-fit portion, and first press-fit portion has first Pinprick, the circuit board module include first group of connecting hole, first press-fit portion be pressed into first group of connecting hole and with institute State circuit board module electrical connection；Second group of contact pin includes the second press-fit portion, and second press-fit portion has the second pinprick, institute Stating circuit board module includes second group of connecting hole, second press-fit portion be pressed into second group of connecting hole and with the wiring board Component electrical connection；The third group contact pin includes third press-fit portion, and the circuit board module includes third group connecting hole, and described Three press-fit portions are pressed into the third group connecting hole and are fixedly connected with the circuit board module.

Motor-driven valve in the present embodiment includes box body and circuit board module, circuit board module and first group of contact pin, second group Contact pin and third group contact pin are inserted while assist side component is electrically connected by the third group of setting by press fitting fixed limit Needle realizes the limit more stable to circuit board assemblies, is conducive to simplify technique.

[Detailed description of the invention]

Fig. 1 is the schematic perspective view at a visual angle of the first embodiment of the motor-driven valve of the utility model；

Fig. 2 is the schematic cross-sectional view at a visual angle of the motor-driven valve in Fig. 1；

Fig. 3 is the structural schematic diagram at the motor-driven valve removal second shell in Fig. 1 and a visual angle after circuit board module；

Fig. 4 is the structural schematic diagram at a visual angle of the motor-driven valve removal second shell in Fig. 1；

Fig. 5 is the structure enlargement diagram in the portion A in Fig. 2；

Fig. 6 is a cross section structure schematic diagram of Fig. 1 stator module；

Fig. 7 is the structural schematic diagram at a visual angle of the composite structure of stator module and first shell；

Fig. 8 is the structural schematic diagram of the first contact pin in Fig. 7；

Fig. 9 is the structural schematic diagram of the 4th contact pin in Fig. 7；

Figure 10 is the positive structure schematic of Fig. 7；

Figure 11 is the structural schematic diagram of the 8th contact pin in Fig. 7；

Figure 12 is the structure enlargement diagram in the portion B in Fig. 7；

Figure 13 is the schematic diagram at another visual angle of the composite structure of stator module and first shell；

Figure 14 is the structure enlargement diagram in the portion C in Figure 13；

Figure 15 is a positive structure diagram of the composite structure of circuit board module, stator module and first shell；

Figure 16 is the structural schematic diagram of the first embodiment of box body；

Figure 17 is the configuration schematic diagram of first shell and second shell in Figure 16；

Figure 18 is the structural schematic diagram at a visual angle of second shell in Figure 16；

Figure 19 is the structural schematic diagram at another visual angle of second shell in Figure 16；

Figure 20 is a cross section structure schematic diagram of second shell in Figure 17；

Figure 21 is the structural schematic diagram of second of embodiment of box body；

Figure 22 is the configuration schematic diagram of first shell and second shell in Figure 21；

Figure 23 is the configuration schematic diagram of second shell in Figure 22；

Figure 24 is a cross section structure schematic diagram of second shell in Figure 22.

[specific embodiment]

The utility model is described in further detail in the following with reference to the drawings and specific embodiments:

Motor-driven valve in the present embodiment is mainly used in refrigeration system, is specifically used for flow control basin, be can be used in Adjust the flow of the working media in refrigeration system.

Referring to Fig. 1 and Fig. 2, motor-driven valve 100 include stator module 110, rotor 120, circuit board module 130, casing 140, Valve body 150 and valve module；Wherein stator module 110 includes coil block 1101 and coil rack 1102, coil rack 1102 Winding for coil block 1101 provides support；Valve module includes spool 160 and transmission device 170；Valve body 150 has first Circulation passage and the second circulation passage, the first circulation passage and the second circulation passage are connected to by valve port 1501, and valve port 1501 can To form in valve body 150 or component and the fixed setting of valve body 150 with valve port 1501, in the present embodiment, there is valve port 1501 Valve seat 1502 and valve body 150 be fixedly installed so that it is convenient to valve port processing；In the present embodiment, stator module 110, which is set to, to be turned Stator module 110 and rotor 120 is isolated in sub 120 peripheries, casing 140, i.e. stator module 110 is set to 140 outside of casing, rotor 120 are set to 140 inside of casing, coil block 1101 and circuit board module 130 electrical connection of stator module 110, to coil group Part 1101 is passed through the electric current of certain timing, and rotor 120 rotates in the excitation field that stator module 110 generates, and rotor 120 turns The dynamic axial movement that spool 160 is converted to by transmission device 170, rotor 120 are able to drive the movement of spool 160,160 energy of spool It is enough relatively close or moved far from valve port 1501 so that the actual internal area of valve port 1501 change so that first passage with The connection sectional area of second channel changes, and then adjusts the flow of the system where motor-driven valve 100.

Motor-driven valve 100 further includes box body 180, and box body 180 includes cavity 3, and circuit board module 130 is placed in cavity 3, in this way Circuit board module can be reduced to be corroded by the external world.In the present embodiment, box body 180 includes first shell 1 and second shell 2, in conjunction with Fig. 3, first shell 1 include bottom wall 11 and side wall, and side wall extends from bottom wall 11 to side, and side wall includes the first side wall 111, second Side wall 112, third side wall 113, the 4th side wall 114, side wall are oppositely arranged, and the first side wall 111 and third side wall 113 are set relatively It sets, second sidewall 112 and the 4th side wall 114 are oppositely arranged, cavity 3 is formed after first shell 1 and the connection of second shell 2, Circuit board module 130 is placed in cavity 3, and in the present embodiment, first shell 1 and second shell 2 are injection molded, specifically, 2 injection molded of second shell, first shell 1 are formed with contact pin 4 for insert injection moulding, and first shell 1 and stator module 110 pass through weldering Fixation is connect, first shell 1 and second shell 2, which pass through, to be welded and fixed, for example laser welding, ultrasonic bonding, two kinds of welding manners Solder is not needed, can further prevent influence of the solder impurity to cavity cleannes；Such structure corresponds to first shell The mold of body 1, second shell 2 and stator module 110 is simpler, advantageously reduces cost.In the present embodiment, stator module 110 have connection limiting section 1103, and connection limiting section 1103 protrudes to be formed to periphery from 110 ontology of stator module, connection limit Portion 1103 and the injection molding insulation division of stator module 110 are integrally formed, and the bottom wall 11 of first shell 1 is provided with opening 1111 (as schemed Shown in 17 and Figure 22), connection limiting section 1103 protrudes into cavity 3 by the opening 1111 of bottom wall 11, and first shell 1 is limited with connecting By being welded and fixed, welding manner includes ultrasonic bonding in portion 1103；In the present embodiment, connection limiting section 1103 includes stage portion 1106 and second protrusion 1104, third protrusion 1105, the second protrusion 1104, third protrusion 1105 are located at stage portion 1106 tops, the outer side contacts of stage portion 1106 and first shell 1 simultaneously limit, stage portion 1106 and the welding of 1 periphery of first shell Fixed and sealed set, the second protrusion 1104, third protrusion 1105 protrude into cavity 3, stage portion 1106 by opening 1111 It is welded and fixed and seals with the outside of first shell 1, the second protrusion 1104, third protrusion 1105 are fixed with contact pin.This reality It applies in example, first shell 1 is fixed with second shell 2 by laser welding.Referring to Fig. 3, first shell 1 includes welding bar 12 and the One bearing surface 13, the first bearing surface 13 are set to 12 periphery of welding bar；Welding bar 12 and the first bearing surface 13 are set to the first side Wall 111, second sidewall 112, third side wall 113 and the 4th side wall 114 top；In conjunction with Fig. 3 and Fig. 5 and Figure 17, second shell Body 2 includes outer edge 201, the first limit rib 202, flash groove 203, and flash groove 203 forms in outer edge 201 and the first limit rib Between 202, after first shell 1 and the assembling of second shell 2, welding bar 12 is located in flash groove 203, outside the first limit rib 202 Side abuts setting with the inside of the side wall of second shell, limitation second shell 2 relative to first shell 1 transverse direction movement, When welding, the positioning of first shell 1 and second shell 2 is docked, with laser melting welding bar 12, and to first shell 1 and second shell Body 2 presses, and welding bar 12, which melts, simultaneously overflows into flash groove 203, the end face of the first bearing surface 13 and outer edge 201 contact or Gap cooperation, completion first shell 1 are welded and fixed with second shell 2.Such sealing structure can satisfy the requirement of sealing, Structure is simple, simple process.In the present embodiment, first shell 1 first with connect limiting section 1103 and fixed by ultrasonic bonding, so Circuit board module 130 and contact pin 4 are assembled afterwards, first shell 1 and second shell 2 pass through laser welding.It is of course also possible to first Shell 1 can also can also pass through Laser Welding by laser welding, first shell 1 and second shell 2 with limiting section 1103 is connect The scheme connect；Ultrasonic bonding, first shell 1 and second are passed through with limiting section 1103 is connect using first shell 1 as needed The scheme that shell 2 passes through ultrasonic bonding.Certain first shell 1 can also be molded with stator module 110 and be integrated, specifically can be with First shell is formed by the insulation division integrated injection molding of stator module, is conducive to improve between first shell and stator module in this way Leakproofness.

In conjunction with referring to Fig. 1 to Fig. 3, box body 180 further includes Plug Division 115, and Plug Division 115 and first shell 1 are integrally formed, Plug Division 115, which is formed with, patches chamber 1151, and external plug insertion patches chamber 1151 and limits with Plug Division 115, and external signal is logical It crosses plug and protrudes into and patch chamber 1151 and be electrically connected with contact pin 4.In the present embodiment, Plug Division 115 forms in the first side wall 111, Plug Division 115 and the first side wall 111 are integrally formed.

Motor-driven valve 100 includes contact pin 4, and one end of all contact pins 4 is connect with circuit board module 130, in the present embodiment Contact pin 4 is crimping contact pin (Press-Fit), and the connection of such contact pin 4 and circuit board module 130 does not need to weld.Referring to figure 7, in the present embodiment, being divided contact pin 4 according to the scene difference that contact pin 4 is applied is three groups, respectively first group 41, second groups of contact pin Contact pin 42, third group contact pin 43, first group of contact pin 41 and box body 180 are fixedly installed, and third group contact pin 43 is set with the fixation of box body 180 It sets, second group of contact pin 42 and stator module 110 are fixedly installed, and first group of contact pin 41 is arranged close to a side wall of box body 180, the Three groups of contact pin contact pins are arranged close to opposite side wall, second group of contact pin 42 be set to first group of contact pin 41 and third group contact pin 43 it Between, first group of contact pin 41 is used for connecting stator component for connecting external signal and circuit board module 130, second group of contact pin 42 110 and circuit board module 130, third group contact pin 43 is that circuit board module 130 is supported in box body 180 and provides part positioning or branch Support.In the present embodiment, first group of contact pin 41 is arranged close to the first side wall 111 of box body 180, and third group contact pin 43 is close to box body 180 third side wall 113 is arranged.First group of contact pin 41 and the injection molding of the first side wall 111 are fixed, third group contact pin 43 and first shell 1 injection molding fix, bottom wall 13 have opening 1111, stator module 110 include connection limiting section 1103, second group of contact pin 42 with connect The injection molding of limiting section 1103 is fixed, and connection limiting section 1103 protrudes into cavity 3 by opening 1111, connects limiting section 1103 and first shell Body 1 is welded and fixed, and first group of contact pin 41 is for connecting external signal and circuit board module 130, and second group of contact pin 42 is for connecting Stator module 110 and circuit board module 130, third group contact pin 43 is for the limit or positioning to circuit board module 130.Wherein, First group of contact pin 41 includes the first press-fit portion 415, first connecting portion 416, the first fixed part 417, the first fixed part 416 and first Shell 1 injection molding fix, the first press-fit portion 415 have the first pinprick 414, circuit board module 130 include first group of connecting hole, first Group connecting hole includes the first connecting hole, the second connecting hole, third connecting hole, and the first press-fit portion 415 is pressed into the first connecting hole group simultaneously It is electrically connected with circuit board module 130.First group of contact pin 41 includes the first contact pin 411, the second contact pin 412, third contact pin 413, the One contact pin 411, the second contact pin 412, third contact pin 413 are located at the setting of same row interval.First contact pin 411, the second contact pin 412, The structure of third contact pin 413 is identical, is introduced by taking the first contact pin 411 as an example below, includes the referring to the first contact pin of Fig. 8 411 One press-fit portion 415, first connecting portion 416 and the first fixed part 417, first connecting portion 416 and the first press-fit portion 415 are substantially hung down Straight setting, the first fixed part 417 connect first connecting portion 416 and the first press-fit portion 415；Wherein the first press-fit portion 415 has the One pinprick 414, when such first press-fit portion 415 is pressed with circuit board module 130, the first press-fit portion 415 can have certain bullet Property deflection, be conducive to assemble, at the same not will lead to because circuit board module 130 due to press fitting cause to damage.Wherein, first connects What socket part 416 protruded into Plug Division 115 patches chamber 1151, the cavity 3 that the first press-fit portion 415 protrudes into, circuit board module 130 and first The press fitting of press-fit portion 415 is fixed and is electrically connected, and the first fixed part of part 417 and first shell 1 are fixed by injection molding.Circuit board module 130 have first through hole, and the first press-fit portion 415 is pressed into first through hole, and such first contact pin 411 is not required to circuit board module 130 It welds, while the second contact pin 412, third contact pin 413 are also pressed into corresponding second through-hole, third through-hole, such three The step of contact pin is connect with circuit board module, the common contact pin of relative usage, can save welding, without using tin Cream, scaling powder etc. eliminate pollution sources from source, and synchronous press mounting is simple, are conducive to the assembly technology for simplifying circuit board module, can To shorten 100 process time of motor-driven valve；Meanwhile for circuit board module, first group of contact pin also functions to the effect supported and fixed, It reduces circuit board module 130 to loosen because vibration occurs, keeps structure relatively stable, improve the reliability of system.

In conjunction with referring to fig. 2 and Fig. 8, in the present embodiment, the first fixed part 417 of the first contact pin 411 is apart from first shell 1 Bottom wall 11 is provided with certain distance, in order to improve the bonding strength of the first fixed part 417 and first shell 1, the bottom of first shell 1 Wall 11 protrudes to form the first protrusion 18 to the inner cavity of first shell 1, and the first protrusion 18 is molded first group of contact pin of covered section 41, the first fixed part 417 and the injection molding of the first protrusion 18 are fixed, and the wall thickness in order to guarantee first shell 1 is relatively uniform, first shell Body, which corresponds to the first protrusion 18, has recess portion 19, and recess portion 19 is recessed from the outside of first shell 1 to 1 inner cavity of first shell, this The forming after-contraction of sample first shell 1 is uniform, reduces the deformation of first shell 1.

Referring to Fig. 7, second group of contact pin 42 includes the second press-fit portion 426, second connecting portion 427, the second fixed part 428, the Two fixed parts 428 are fixed with the injection molding of first shell 1, and the second press-fit portion 426 has the second pinprick 425, and circuit board module 130 includes Second group of connecting hole, second group of connecting hole include the 4th connecting hole, the 5th connecting hole, the 6th connecting hole, the 7th connecting hole, and second Press-fit portion 426 is pressed into the second connecting hole and is electrically connected with circuit board module 130.Second group of contact pin 42 includes the 4th contact pin 421, the Five contact pins 422, the 6th contact pin 423, the 7th contact pin 424, wherein the 4th contact pin 421 and the 5th contact pin 422 and the second protrusion 1104 are fixed by injection molding, and the 6th contact pin 423 and the 7th contact pin 424 and the second protrusion 1105 are fixed by injection molding, the second protrusion Portion 1104 and third protrusion 1105 are spaced a predetermined distance.In the present embodiment, the structure of each root cutting needle in second group of contact pin 42 It is all the same, it is introduced by taking the 4th contact pin 421 as an example below, referring to Fig. 9, the 4th contact pin 421 includes the second press-fit portion 426, the Two interconnecting pieces 427, the second fixed part 428, the wherein setting substantially vertical with the second fixed part 428 of second connecting portion 427, second is solid Portion 428 and the second press-fit portion 426 are determined in coplanar setting, and the second press-fit portion 427 has the second pinprick 425, such second press-fit portion 426 with circuit board module 130 be pressed when, the second press-fit portion 426 can have certain elastic deformation amount, be conducive to assemble, simultaneously It not will lead to because circuit board module 130 causes to damage due to press fitting.Circuit board module 130 has fourth hole, the second press fitting Portion 426 is pressed into fourth hole and limits and can be electrically connected with circuit board module 130 with circuit board module 130, as shown in fig. 6, the Two interconnecting pieces 427 are fixed with coil block 1101 and are electrically connected, and the second fixed part 428 passes through injection molding work with limiting section 1103 is connect Skill is fixed.In the present embodiment, second connecting portion 427 and the second fixed part 428 are wrapped up by the second protrusion 1104, and second connects Socket part 427 is electrically connected with coil component 1101, and second connecting portion and the limit of coil rack 1102 connect, and are fixed by injection molding portion Connect second connecting portion 427；Meanwhile the 5th contact pin 422, the 6th contact pin 423, the 7th contact pin 424 are also pressed into corresponding line Fifth hole, the 6th through-hole, the 7th through-hole of road board group part 130, in this way, the contact pin that relative usage is common, can save welding The step of, without using tin cream, scaling powder etc., pollution sources are eliminated from source, synchronous press mounting is simple, is conducive to simplify The assembly technology of circuit board module can shorten 100 process time of motor-driven valve；Circuit board module is played simultaneously and is supported and fixed Effect, keep structure relatively stable, improve the reliability of system.Second group of contact pin is not limited to 4, can be 5 or 6.

In present embodiment, Plug Division 115 is set to the first side wall 111 of first shell 1, and first group of contact pin 41 is close to The first side wall 111 of one shell 1 is arranged, and the close third side wall 113 opposite with the first side wall 111 of third group contact pin 43 is arranged, Third group contact pin 43 is used for the limit or positioning of circuit board module, and second group of contact pin 42 is set to first group of contact pin 41 and third group Between contact pin 43, i.e. second group of contact pin 42 is substantially centered setting, and such circuit board module is formed at three and supported, more stable.

Referring to Fig. 7 and Figure 10, third group contact pin 41 includes third press-fit portion 434, third fixed part 435, third press-fit portion 434 have third pinprick 433, circuit board module 130 include third group connecting hole, third group connecting hole include the 8th connecting hole, 9th connecting hole, third press-fit portion 434 are pressed into third group connecting hole and are fixedly connected with circuit board module 130.Third group contact pin 43 include the 8th contact pin 431, the 9th contact pin 432, wherein the 8th contact pin 431 is close to second sidewall 112 and the formation of third side wall 113 Corner setting, the 9th contact pin 432 is arranged close to the corner that third side wall 113 and the 4th side wall 114 are formed, third group contact pin 43 Each contact pin structure it is identical, be introduced by taking the 8th contact pin 431 as an example below, referring to Figure 11, the 8th contact pin 431 includes Third press-fit portion 434, third fixed part 435, third press-fit portion 434 and third fixed part 435 are in same plane, third press fitting Portion 434 has third pinprick 433, and when such third press-fit portion 434 is pressed with circuit board module 130, third press-fit portion 434 can be with There is certain elastic deformation amount, be conducive to assemble, while not will lead to because circuit board module causes to damage due to press fitting；Route Board group part 130 has the 8th connecting hole, and third press-fit portion 434 is pressed into the 8th connecting hole and connect with circuit board module 130, and third is solid Determine portion 435 and the injection molding of first shell 1 is fixed, box body includes base station, and base station includes the first base station, the second base station, third base station, the Four base stations, part third fixed part are molded fixed or are fixedly connected at least partly base station, and in the present embodiment, part third is fixed Portion and the first base station are molded fixed or are fixedly connected, and the 8th contact pin 431 further includes anti-delinking part 437, and anti-delinking part 437 is to be formed in the The annular groove of three fixed parts 435, after the 8th contact pin 431 is molded with first shell 1,1 part of first shell enters annular groove, Prevent the 8th contact pin 431 from falling off.Meanwhile the 9th contact pin 432 be pressed into the 9th connecting hole of corresponding circuit board module 130, Play the role of supporting and fixing to the circuit board module 130 far from the first side wall 111, keep structure relatively stable, improves system Reliability, meanwhile, by increasing third group contact pin 43, the stability of stress when can promote press fitting improves system reliability.This The contact pin of utility model embodiment includes but is not limited to 9 root cutting needles, can according to need appropriate increase and decrease, for example, third group contact pin 43 include but is not limited to the 8th contact pin, the 9th contact pin, can increase contact pin in the corner location close to the first side wall and play support With the contact pin of fixed function, keep structure more stable, the stability of stress when can promote press fitting improves system reliability, favorably In the assembly technology for simplifying circuit board module, certainly, third group contact pin 43 is also possible to a pin support circuit board module.Line Road board group part and contact pin do not need to weld, are effectively reduced solder impurity, be conducive to the clear of box body by the fixed limit of press fitting Cleanliness improves the working environment of circuit board module.In other embodiments, third group contact pin can also not have third needle Eye.

In the present embodiment, circuit board module 130 is limited by contact pin 4, and in addition an end face of circuit board module 130 passes through The base station 15 integrally formed with first shell 1 limits；Wherein the height of base station 15 is relatively larger than the first protrusion 18 and second The height of protrusion 1104, third protrusion 1105 advantageously allows circuit board module in this way and sufficiently connect with contact pin.Referring to figure 7, Figure 10, Figure 12, Figure 13, Figure 14, first shell 1 include base station 15, and base station 5 is formed from the bottom of box body 180 protrusion, base station 15 Including limiting section 16, base station 15 according to the position difference of setting be divided into the first base station 151, the second base station 152, third base station 153, 4th base station 154, the first base station 151 and the second base station 152 are arranged close to third side wall 113, and the first base station 151 is close to second side Wall setting, the second base station 152 are arranged close to the 4th side wall, and third base station 153 is set with the 4th base station 154 close to the first side wall 111 It sets, third base station 153 is arranged close to the 4th side wall 114, and the 4th base station 154 is arranged close to second sidewall 112, wherein the first base station 151 is identical as the structure of the second base station 152, and third base station 153 is identical as the structure of the 4th base station 154, and setting can be square in this way Just processing can certainly be different structure.Referring to Figure 12, the first base station 151 includes limiting section 16 and the first columnar part 1511, limiting section 16 includes the first limiting section 161, the second limiting section 162, and the first limiting section 161 and the second limiting section 162 are spaced Pre-determined distance setting, the plane where 162 upper end of plane and the second limiting section where 161 upper end of the first limiting section, the first column Shape portion 1511 is connect with the first limiting section 161 and the second limiting section 162, the third fixed part 435 and first of the 8th contact pin 431 The injection molding of columnar part 1511 is fixed, 1511 covered section third fixed part 435 of the first columnar part, where 1511 upper end of the first columnar part Plane be relatively lower than the plane where 161 upper end of the first limiting section, the top of the 8th contact pin 431 is relatively higher than the first limiting section Plane where 161, after such 8th contact pin 431 is connected with circuit board module 130 by press fitting, the first limiting section 161, second Limiting section 162 is abutted with the lower end surface of circuit board module 130, so that limiting circuit board module 130 continues bottom to first shell 1 Wall 11 is mobile, meanwhile, the first columnar part 1511 coats 431 1 segment length of the 8th contact pin, is conducive to the company for improving the 8th contact pin 431 Intensity is connect, the stability of stress, improves the stability of structure when promoting press fitting；Second base station 152 is identical as the first abutment structure, Including limiting section and the second columnar part, limiting section includes third limiting section, the 4th limiting section, putting down where the second columnar part upper end Face is relatively lower than the plane where third limiting section upper end, the second columnar part note of the 9th contact pin 432 and the second base station 152 Modeling is fixed, and positional relationship is identical as the positional relationship of the 8th contact pin, repeats no more.

Referring to Figure 13 and Figure 14, third base station 153 includes the 5th limiting section 165 and the 6th limiting section 166, the 5th limiting section 165 and the 6th limiting section 166 be spaced pre-determined distance setting, circuit board module 130 assemble after, the lower end surface of circuit board module 130 It is abutted with the 5th limiting section 165 and the 6th limiting section 166, limits circuit board module 130 and continue to the movement of the bottom wall of first shell； 4th base station is identical as the structure of third base station, including the 7th limiting section, the 8th limiting section repeat no more.

First shell 1 is additionally provided with guiding rib 17, and first shell further includes guiding rib, and guiding rib is set to base station and first Between housing sidewall, guiding rib and first shell side wall are integrally formed, and the height of guiding rib is greater than the height of base station, route board group Part is provided with the notch section with guiding rib cooperation, and part guiding rib protrudes into the notch section, in the present embodiment, guiding rib one Root is set to the inner circumferential of third base station 153, and guiding rib 17 is set between third base station 153 and the side wall of first shell, guiding Muscle 17 is set to the inside of the side wall of first shell 1, does not need the other positions for accounting for first shell 1, effective use first in this way The space of shell 1, the relative altitude of guiding rib 17 are greater than the height of third base station 153, are just formed in the top of base station 16 in this way Guiding, it is more accurate to position；Certain guiding rib also can be set in the first base station 151, the second base station 152 and the 4th base station 154 inside；Circuit board module 130 is additionally provided with the notch section 137 cooperated with guiding rib 17, and guiding rib 17 is used for route board group The Setup Wizard of part 130, positioning and guiding when circuit board module 130 can preferably be facilitated to be packed into this way improve assembly effect Rate prevents the mistake dress of assembly circuit board module 130.The quantity of guiding rib 17 includes but is not limited to 1, and it is appropriate to can according to need Increase.

Referring to Fig. 3, Figure 10, Figure 15, first shell 1 further includes positioning bar 14, the side wall one of positioning bar and first shell Forming, positioning bar are formed from second sidewall and/or third side wall and/or the 4th side wall to first shell inner cavity is raised, wiring board Component is provided with groove structure, and part positioning bar protrudes into groove structure setting, specifically, the height of positioning bar 14 is greater than base station Highly, positioning bar 14 is divided into the first positioning bar 141, the second positioning bar 142, third positioning bar 143 according to setting position difference, the One positioning bar 141 is set to 112 inside of second sidewall, and the second positioning bar 142 is set to 113 inside of third side wall, third positioning Muscle 143 is set to 114 inside of the 4th side wall, and positioning bar 14 is formed from side wall to 1 inner cavity of first shell is raised, meanwhile, wiring board Component 130 is provided with the groove structure 136 cooperated with the first positioning bar 141, the second positioning bar 142, third positioning bar 143, when It so can also be not provided with groove structure 136, the outer rim of circuit board module 130 is abutted with positioning bar.Circuit board module 130 is installed Afterwards, circuit board module 130 abuts or clearance fit with positioning bar 14, and circuit board module 130 can preferably be facilitated to be packed into this way When guiding, guarantee that the through-hole of contact pin 4 and circuit board module 130 to positive setting, improves assembly efficiency.

Referring to Fig. 1, Fig. 2, the technical program devises waterproof ventilated membrane 5 and communicating passage, in the cavity 3 of box body 180 Cavity can be discharged by waterproof ventilated membrane 5 and communicating passage in air, and the vapor in such cavity 3 can also pass through waterproof Box body 180 is discharged in ventilated membrane 5 and communicating passage, and outside air passes through waterproof ventilated membrane 5 when waterproof ventilated membrane 5 enters cavity 3 Vapor in outside air can be isolated, vapor external in this way cannot enter cavity by waterproof ventilated membrane 5, can make 3 internal environment of cavity keeps relatively dry, and in the environment of can preventing relatively high humidity in this way, the air in cavity 3 may It with the dew condensation phenomenon that temperature change generates, can prevent condensation from waiting generations damage to circuit board module 130, while can also protect The relative equilibrium of 180 external and internal pressure of box body is demonstrate,proved, while also can isolate the pollution particle in outside air.

Waterproof ventilated membrane 5 includes being fixedly connected with portion 51 and ventilation part 52, is fixedly connected with portion 51 and is arranged around ventilation part 52, Gu Interconnecting piece 51 and box body 180 are determined by hot pressure or welding or fixed glue fixed setting, and such gas can not be by being fixedly connected Portion is connected to inside and outside cavity, can only be connected to inside and outside cavity by ventilation part, be prevented external water from entering cavity by connecting portion.

Figure 16 is in the first embodiment the present embodiment of box body 180, and box body 180 includes first shell 1 and second shell Body 2, first shell 1 and second shell 2 are fixedly connected by welding, and the junction sealing of first shell 1 and second shell 2 is set It sets, wherein first shell 1 is identical as the above first shell 1, repeats no more below, highlights second shell 2 below.

In conjunction with Figure 17, second shell 2 includes substrate 21, and box body 180 further includes 5 box communicating passage of waterproof ventilated membrane, waterproof Ventilated membrane contacts fixed setting, cavity and box portion outside with box body and is arranged by waterproof ventilated membrane and communicating passage gas connection, Waterproof ventilated membrane and second shell are fixedly installed, and second shell has communicating passage and the first recess portion, the first recess portion from cavity to The external concavity of second shell is formed, and communicating passage is connected to setting with the first recess portion, and waterproof ventilated membrane is placed in the first recess portion simultaneously Fixed setting, cavity are set to the side of waterproof ventilated membrane, and communicating passage is set to the other side of waterproof ventilated membrane, the present embodiment In, waterproof ventilated membrane 5 is fixed on the inside of substrate 21, the junction sealed set of waterproof ventilated membrane 5 and substrate 21, such as waterproof Ventilated membrane 5 and substrate 21 by hot pressure or can be welded and fixed and seal, and welding manner can be ultrasonic bonding, certainly may be used To fix and seal by fixed glue, naturally it is also possible to be fixed using other modes；Substrate 21 has communicating passage, box body 180 It is external that gas connection is kept by communicating passage and waterproof ventilated membrane in cavity 3, by the gap to waterproof ventilated membrane 5 with And material is designed, such waterproof ventilated membrane 5 can guarantee that extraneous water cannot enter cavity by waterproof ventilated membrane 5, It is extraneous simultaneously to keep gas connection with box body.Waterproof ventilated membrane 5 is by the material system with waterproof, airing function in the present embodiment At in the present embodiment, the main component of 5 material of waterproof ventilated membrane is expanded PTFE (EPTFE), naturally it is also possible to be used Other materials with identity function.

Substrate 21 includes outer edge 201, the first limit rib 202, flash groove 203, and flash groove 203 forms in outer edge 201 And first between limit rib 202, and after first shell 1 and second shell 2 assemble, welding bar 12 is set in flash groove 203, and first The outside of limit rib 202 abuts setting with the inside of 1 side wall of second shell.

For convenience of description, the one side that substrate 21 is relatively distant from circuit board module 130 is known as the first face 211, by substrate 21 The one side of relatively close circuit board module 130 is known as the second face 212, and waterproof ventilated membrane 5 is set to the second face 212.

Referring to Figure 19 and Figure 20, substrate 21 has the first recess portion 6, and the first recess portion 6 is recessed from the second face 212 to the first face 211 It falls into and is formed, the first recess portion 6 be connected to setting with communicating passage, first bottom wall 61 of the second shell 2 including the first recess portion 6 of formation, the Two bottom walls 62 and the first recess sidewalls 63, the first bottom wall 61 and the second bottom wall 62 arrange that the first recess sidewalls 63 are set in ladder It being placed between the first bottom wall 61 and the second bottom wall 62, plane where the first bottom wall is relatively lower than surface where second shell, and second Bottom wall is relatively lower than the setting of the first bottom wall, and communicating passage forms in the second bottom wall, and waterproof ventilated membrane and the first bottom wall are fixedly installed, First recess portion is divided into the first chamber and the second chamber by waterproof ventilated membrane, and the second chamber is connected to institute's through-hole, and the first chamber is connected to cavity.

Specifically, the first bottom wall 61 and the second bottom wall 62 are spaced a distance, and waterproof ventilated membrane 5 and the first bottom wall 61 are solid Fixed setting, the plane where the first bottom wall 61 are relatively lower than the plane where the first face 211, part waterproof ventilated membrane 5 and first Bottom wall 61 contacts, and the surrounding of waterproof ventilated membrane 5 and the first bottom wall 61 pass through hot pressure or be welded and fixed and seal, and welding manner can be with It is ultrasonic bonding, naturally it is also possible to fix and seal by fixed glue, guarantee the intensity and sealing of waterproof performance and weld part Property, meanwhile, the plane where the first bottom wall 61 is lower than the plane where the first face 211, after waterproof ventilated membrane 5 is fixed, by scalding It is substantially concordant or be relatively lower than the second face 212 with the second face 212 after pressure or welding or fixed glue connection, waterproof can be prevented saturating Air film 5 installs processus aboralis for the plane where the second face 212, avoids waterproof ventilated membrane 5 from being encountered and damaged, first is arranged certainly Bottom wall can also preset the position of waterproof ventilated membrane, simplify the process for determining installation site；Certainly, waterproof ventilated membrane 5 The setting of the second face 212 can also be protruded from.

In the present embodiment, communicating passage includes first part, and first part includes the first slot 64, the second slot 65, third slot 66, the 4th slot 67, the first slot 64, the second slot 65, third slot 66, the 4th slot 67 are recessed from the outer surface inner surface of second shell Formed, the first slot 64, the second slot 65, third slot 66, the 4th slot 67 structure it is identical and around the first recess portion 6 be arranged, first Slot 64, the second slot 65, third slot 66, the 4th slot 67 are connected to the first recess portion 6 respectively.First recess portion 6 further includes occlusion part, is blocked The setting of the first recess sidewalls is protruded in portion, and the protrusion height of occlusion part is greater than the aperture of communicating passage, the second bottom wall of occlusion part distance Set distance, specifically, second shell 2 includes occlusion part 631, occlusion part 631 is convex from the first recess sidewalls 63 to the first recess portion 6 It rises, the height of projection of the occlusion part 631 is relatively larger than the first slot 64, the second slot 65, the third slot the 66, the 4th for being equal to communicating passage The width of slot 67, bottom distance the second bottom wall set distance of the occlusion part 631, the occlusion part 631 being arranged in this way to flow Circulation passage forms labyrinth structure, under the premise of guaranteeing circulation, so that the gap of communicating passage reduces, reduces extraneous certain size Foreign matter enters the first recess portion 6, it is possible to reduce foreign matter directly touches waterproof ventilated membrane 5 and keeps waterproof ventilated membrane 5 impaired；Certainly Can by the first slot 64, the second slot 65, third slot 66, the 4th slot 67 slot opening direction and the first face angle less than 90 Or be greater than 90, i.e. the first slot 64, the second slot 65, third slot 66, the 4th slot 67 extending direction and 211 out of plumb of the first face set It sets, foreign matter can also be reduced and directly touch waterproof ventilated membrane 5 and keep waterproof ventilated membrane 5 impaired.First slot 64, the second slot 65, The setting of third slot 66, the 4th slot 67 makes communicating passage, and there are enough spaces, guarantee the circulation area of air.It is anti-by being arranged Box body can be discharged in water ventilated membrane 5, the air in the cavity 3 of box body 180 by waterproof ventilated membrane 5, and the vapor in cavity 3 is logical It crosses waterproof ventilated membrane 5 and box body 180 is discharged, and waterproof ventilated membrane 5 can be with when outside air enters cavity 3 by waterproof ventilated membrane 5 By the vapor isolation in outside air, vapor external in this way cannot enter cavity by waterproof ventilated membrane 5, can make cavity 3 internal environments keep relatively dry, and in the environment of can preventing relatively high humidity in this way, air in cavity 3 may be with The dew condensation phenomenon that temperature change generates can prevent condensation from waiting generations damage, while it is also ensured that box to circuit board module 130 The relative equilibrium of 180 external and internal pressure of body.It is also possible to prevent external fluid molecule and pollution particle from passing through waterproof ventilated membrane 5 enter cavity 3, play the role of waterproof, anti-foreign matter, can prevent water and foreign particles from damaging generations such as circuit board modules. Certainly, waterproof ventilated membrane 5, which also can according to need, is installed on first shell 1.Motor-driven valve 100 is in application, to prevent the first recess portion 6 Ponding, the first recess portion 6 can be arranged with relative tilt or be arranged downward relatively.In another kind is reported, the first recess portion has first Recess sidewalls 631, communicating passage include the first slot 64, the second slot 65, third slot 66, the 4th slot 67, the first slot 64, the second slot 65, recess is formed outward by the first recess sidewalls 631 for third slot 66, the 4th slot 67, the first slot 64, the second slot 65, third slot 66, 4th slot 67 is not through first shell 1.

Figure 21-Figure 24 is second of embodiment of box body, and present embodiment is compared with the first embodiment, mainly It distinguishes and is second shell 2, in the present embodiment, second shell 2 includes substrate 21, cover board 22, and substrate and cover board are formed separately simultaneously It is fixedly connected, communicating passage is set between substrate and cover board, and box body 180 is provided with waterproof ventilated membrane 5, waterproof in the present embodiment Ventilated membrane 5 is installed between substrate 21 and cover board 22, and in the present embodiment, the independent injection molding of substrate 21, cover board 22 are individually molded Molding, by welding or connecting and fixing connection, welding manner can be ultrasonic bonding.

Pass through communicating passage in gap between communicating passage substrate 21 and cover board 22, box portion outside and cavity and prevents Water ventilated membrane keeps gas connection, is designed by gap to waterproof ventilated membrane and material, such waterproof ventilated membrane It can guarantee that extraneous water cannot enter box body by waterproof ventilated membrane, while extraneous and cavity keeps gas connection.This implementation Example in waterproof ventilated membrane 5 be made of the material with waterproof, airing function, in the present embodiment, waterproof and breathable membrane material it is main Ingredient is expanded PTFE (EPTFE), naturally it is also possible to using other materials with identity function.

Referring to fig. 23, substrate 21 includes the second recess portion 7 and first through hole portion 8, the second recess portion 7 from the outside of second shell to Cavity is recessed to be formed, and the second recess portion 7 is connected to by first through hole portion 8 with cavity 3, and the second recess portion 7 includes the second recess sidewalls 72 With the second concave bottom 71, first through hole portion 8 through the setting of 71, the second recess portion bottom, waterproof ventilated membrane 5 be fixedly connected portion with The fixed setting of second bottom wall, specifically, second shell 2 is provided with the second recess portion 7 and first through hole portion 8, first through hole portion 8 is run through The setting of second 7, recess portion bottom.Second recess portion 7 includes the second concave bottom 71 and the second recess sidewalls 72, the second concave bottom 71 7 inner cavity of the second recess portion is surrounded with the second recess sidewalls 72.Second shell further includes the first weld part, and the first weld part is recessed from second The protrusion setting of portion bottom, the first weld part and the second recess sidewalls interval set distance, cover board and substrate pass through the first weld part It is welded and fixed, is the first mounting portion, the surrounding of waterproof ventilated membrane and the first mounting portion between the first weld part and first through hole portion Contact fixed setting, specifically, the second concave bottom 71 has the first weld part 711, the first weld part 711 protrudes the second recess portion Bottom 71 is arranged, and the first weld part 711 is close to the second recess sidewalls 72 and is spaced set distance, the first weld part 711 and first It is the first mounting portion 712 between through-hole section 8, in the present embodiment, the first weld part 711 is four and is spaced a predetermined distance setting, The surrounding of waterproof ventilated membrane 5 contacts and passes through hot pressure with the first mounting portion 712 or is welded and fixed and seals, and welding manner can be Ultrasonic bonding, naturally it is also possible to it fixes and seals by fixed glue, the first weld part 711 has the first muscle portion 2211, and first The top setting of prominent first weld part 711 of muscle portion 2211, the first muscle portion 2211 are gradually increased from the downward cross-sectional area in top, the One muscle portion 2211 is used to weld with cover board 22, on the one hand setting in this way is conducive to improve the first muscle portion 2211 and the first weld part 711 bonding strength, on the other hand the top of the first muscle portion 2211 is contacted with cover board 22, due to the top of the first muscle portion 2211 Section is smaller, reach the first muscle portion 2211 melt and be welded and fixed needs energy it is smaller, be beneficial to energy conservation, also help reduction Influence to the other parts of cover board 22 and box body 180.Cover board 22 includes peripheral portion 220, the second recess sidewalls of part 72 and week Side 220 contacts or small―gap suture cooperation, forms communicating passage between the second recess sidewalls of part 72 and peripheral portion 220；Even Circulation passage includes first part and second part, and the second recess sidewalls or/and peripheral portion have a groove, and groove is from the second recess portion side Wall or/and peripheral portion are recessed to be formed, and the length that the length of groove is less than cover board is more than or equal to the one third of cover board length, and second Part includes that the peripheral portion of cover board has the notch cooperated with groove, and first part includes the second recess sidewalls or/and peripheral portion Between gap, the gap that second part includes cover board and substrate is formed by the notch formed by groove.Specifically, groove Including the 5th slot 721, the 6th slot 722, the 7th slot 723, the 8th slot 724, the 5th slot 721, the 6th slot 722, the 7th slot 723, Eight slots 724 from the second recess sidewalls 72 or/and peripheral portion 220 recess formed, the 5th slot 721, the 6th slot 722, the 7th slot 723, The length that the length of 8th slot 724 is less than cover board is more than or equal to the one third of cover board length, and second part includes cover board 22 Peripheral portion 220 has the notch 2201 cooperated with the 5th slot 721, the 6th slot 722, the 7th slot 723, the 8th slot 724, first part Including forming gap by groove between the second recess sidewalls 72 or/and peripheral portion 220, second part includes cover board 22 and substrate 21 gaps formed by the notch.First part is connected to setting, the 5th slot 721, the 6th slot the 722, the 7th with second part Slot 723, the 8th slot 724 length be less than cover board length be more than or equal to cover board length one third, in this way guarantee circulation leads to In the case where road, labyrinth structure is formed, prevents foreign matter from directly touching waterproof ventilated membrane 5 and keeps waterproof ventilated membrane 5 impaired.Cover board Welding bar also can be set in 22 one end connecting with the second concave bottom 71, for connecting with substrate 21.In the present embodiment, waterproof The effect of ventilated membrane 5 is identical as the effect of waterproof ventilated membrane 5 in the first embodiment, is not repeating herein.Motor-driven valve 100 is applied When, to prevent 7 ponding of the second recess portion, the second recess portion 7 can be arranged with relative tilt or is arranged downward relatively.Pass through in the present embodiment The 5th slot 721, the 6th slot 722, the 7th slot 723, the 8th slot 724 are formed on substrate, forms notch on the cover board, are formed in this way Communicating passage, relative to the above communicating passage is shaped simultaneously on substrate 21 or cover board 22 so that substrate 21 and cover board 22 at Describe that easily tooling is simple.

Above first recess portion and the second recess portion are to distinguish different embodiments, are recess portion.

It should be understood that above embodiments are merely to illustrate the utility model and not limit described by the utility model Technical solution, although this specification has been carried out detailed description to the utility model referring to the above embodiments, this Field it is to be appreciated by one skilled in the art that person of ordinary skill in the field still can modify to the utility model Or equivalent replacement, and the technical solution and its improvement of all spirit and scope for not departing from the utility model, it should all cover In the scope of the claims of the utility model.

Claims (9)

1. a kind of motor-driven valve, including stator module, rotor, casing and valve module, the valve module include spool, the stator Component includes coil block, and the stator module is located at the outside of the rotor, and the stator module and institute is isolated in described sleeve pipe Rotor is stated, the motor-driven valve has valve port, and the rotor is able to drive the relatively described valve port movement of spool, it is characterised in that: institute Stating motor-driven valve further includes box body and circuit board module, and the box body has cavity, and the circuit board module is placed in the cavity, The motor-driven valve includes contact pin, and the contact pin is divided into first group of contact pin, second group of contact pin and third group contact pin, and described first group Contact pin and the box body are fixedly installed, and the third group contact pin and the box body are fixedly installed, second group of contact pin with it is described Stator module fixed setting, the box body includes the side wall being oppositely arranged: the first side wall, third side wall, first group of contact pin It is arranged close to the first side wall, the third group contact pin is arranged close to the third side wall；Along the first side wall, third side Direction between wall, second group of contact pin are set between first group of contact pin and the third group contact pin, and described first Group contact pin is electrically connected the circuit board module, and is used for and external connection, and second group of contact pin is for connecting the stator pack One end of part and the circuit board module, the third group contact pin is fixedly connected with the box body, the other end and the wiring board Component limit setting or fixed setting, the third group contact pin and the circuit board module are without being electrically connected；First group of contact pin Including the first press-fit portion, first press-fit portion has the first pinprick, and the circuit board module includes first group of connecting hole, described First press-fit portion is pressed into first group of connecting hole and is electrically connected with the circuit board module；Second group of contact pin includes second Press-fit portion, second press-fit portion have the second pinprick, and the circuit board module includes second group of connecting hole, second press fitting Portion is pressed into second group of connecting hole and is electrically connected with the circuit board module；The third group contact pin includes third press-fit portion, The circuit board module includes third group connecting hole, the third press-fit portion be pressed into the third group connecting hole and with the route Board group part is fixedly connected.

2. motor-driven valve according to claim 1, it is characterised in that: the box body includes first shell and second shell, institute First shell and the second shell are stated by being welded and fixed, the first shell includes bottom wall and from the bottom wall to side The first side wall, second sidewall, the third side wall and the 4th side wall extended, the first side wall and the third side Wall is oppositely arranged, and the second sidewall and the 4th side wall are oppositely arranged, and first group of contact pin and the first side wall are infused Modeling is fixed, and the third group contact pin and first shell injection molding are fixed, and the bottom wall has opening, and the stator module includes Limiting section is connected, second group of contact pin and connection limiting section injection molding are fixed, and the connection limiting section passes through the opening The cavity is protruded into, the connection limiting section is welded and fixed with the first shell.

3. motor-driven valve according to claim 2, it is characterised in that: wherein first group of contact pin further includes the first fixed part And first connecting portion, second group of contact pin include the second fixed part and second connecting portion, first fixed part and described the Two fixed parts and first shell injection molding are fixed, and the motor-driven valve includes Plug Division, and the Plug Division forms in described first Side wall, the Plug Division include patching chamber, and the first connecting portion, which protrudes into, patches chamber, the second connecting portion and the stator pack The coil block of part is electrically connected, and the third group contact pin includes third fixed part, and the box body includes base station, and the base station is from institute The bottom protrusion for stating box body is formed, and the part third fixed part is fixed or is fixedly connected at least partly described base station injection molding.

4. motor-driven valve according to claim 3, it is characterised in that: the first shell includes the base station, the base station Including the first base station, the second base station, first base station and second base station are arranged close to the third side wall, and described first Base station is arranged close to the second sidewall, and second base station is arranged close to the 4th side wall, and first base station includes the One columnar part, the first limiting section, the plane where the first columnar part upper end are relatively lower than where first limiting section upper end Plane, second base station have the second columnar part, third limiting section, and the plane where the second columnar part upper end is relatively lower than institute The plane where third limiting section upper end is stated, the third group contact pin includes two root cutting needles, wherein a root cutting needle and described first Columnar part is fixedly connected, wherein another root cutting needle is fixedly connected with second columnar part；The lower end surface of the circuit board module Setting is abutted with the limiting section.

5. motor-driven valve according to claim 4, it is characterised in that: the first shell includes the first protrusion, and described the The bottom wall of one protrusion from the first shell convexes to form, and the first protrusion injection molding coats described first group of the part Contact pin, the connection limiting section include the second protrusion and third protrusion, the described in the second protrusion covered section Wherein two of two groups of contact pins, the third protrusion coat other two of second group of contact pin, correspond to described first Protrusion, the first shell include recess portion, and the recess portion is recessed from the outside of the first shell to first shell inner cavity.

6. motor-driven valve according to claim 5, it is characterised in that: connection limiting section include stage portion, the stage portion with The partial outer face of the first shell contacts, and simultaneously sealed set is welded and fixed in the stage portion and the first shell periphery.

7. motor-driven valve according to claim 5 or 6, it is characterised in that: the first shell includes positioning bar, the positioning Muscle and the side wall of the first shell are integrally formed, the positioning bar from the second sidewall and/or the third side wall and/or 4th side wall is formed to the first shell inner cavity is raised, and the circuit board module is provided with groove structure, the part positioning Muscle protrudes into the groove structure setting.

8. motor-driven valve according to claim 5 or 6, it is characterised in that: the first shell further includes guiding rib, described to lead Be set between the base station and the first shell side wall to muscle, the guiding rib and first shell side wall one at Shape, the height of the guiding rib are greater than the height of the base station, and the circuit board module is provided with and guiding rib cooperation Notch section, the part guiding rib protrude into the notch section.

9. motor-driven valve according to claim 1, it is characterised in that: the box body includes first shell and second shell, institute First shell and the second shell are stated by being welded and fixed, the first shell includes bottom wall and from the bottom wall to side The first side wall, second sidewall, the third side wall and the 4th side wall extended, the first side wall and the third side Wall is oppositely arranged, and the second sidewall and the 4th side wall are oppositely arranged, and first group of contact pin and the first side wall are infused Modeling is fixed, and the third group contact pin and first shell injection molding are fixed, and the bottom wall has opening, and the stator module includes Limiting section is connected, second group of contact pin and connection limiting section injection molding are fixed, and the connection limiting section passes through the opening The cavity is protruded into, the connection limiting section is welded and fixed with the first shell；

Wherein first group of contact pin further includes the first fixed part and first connecting portion, and second group of contact pin includes second fixed Portion and second connecting portion, first fixed part and second fixed part and first shell injection molding are fixed, described electronic Valve includes Plug Division, and the Plug Division forms in the first side wall, and the Plug Division includes patching chamber, the first connecting portion It protrudes into and patches chamber, the second connecting portion is electrically connected with the coil block of the stator module, and the third group contact pin includes the Three fixed parts, the box body include base station, and the base station is formed from the bottom of box body protrusion, the part third fixed part It fixes or is fixedly connected at least partly described base station injection molding；

The first shell includes the base station, and the base station includes the first base station, the second base station, first base station and described Second base station is arranged close to the third side wall, and first base station is arranged close to the second sidewall, and second base station leans on The nearly 4th side wall setting, first base station include the first columnar part, the first limiting section, where the first columnar part upper end Plane is relatively lower than the plane where first limiting section upper end, and there is second base station the second columnar part, third to limit Portion, the plane where the second columnar part upper end are relatively lower than the plane where third limiting section upper end, and the third group is inserted Needle includes two root cutting needles, wherein a root cutting needle is fixedly connected with first columnar part, wherein another root cutting needle and described second Columnar part is fixedly connected；The lower end surface of the circuit board module abuts setting with the limiting section；

The first shell includes the first protrusion, and the bottom wall of the first protrusion from the first shell convexes to form, institute It states the injection molding of the first protrusion and coats part first group of contact pin, the connection limiting section includes the second protrusion and the Three protrusions, wherein two of second group of contact pin described in the second protrusion covered section, the third protrusion coats institute Other two for stating second group of contact pin correspond to first protrusion, and the first shell includes recess portion, and the recess portion is from institute The outside for stating first shell is recessed to first shell inner cavity；

Connecting limiting section includes stage portion, and the stage portion is contacted with the partial outer face of the first shell, the stage portion Simultaneously sealed set is welded and fixed with the first shell periphery；

The first shell includes positioning bar, and the positioning bar and the side wall of the first shell are integrally formed, the positioning bar It is formed from the second sidewall and/or the third side wall and/or the 4th side wall to the first shell inner cavity is raised, the line Road board group part is provided with groove structure, and the part positioning bar protrudes into the groove structure setting；

The third press-fit portion has third pinprick；

The first shell further includes guiding rib, and the guiding rib is set between the base station and the first shell side wall, The guiding rib and the first shell side wall are integrally formed, and the height of the guiding rib is greater than the height of the base station, described Circuit board module is provided with the notch section with guiding rib cooperation, and the part guiding rib protrudes into the notch section.