CN218455000U - Electric valve - Google Patents

Abstract

The utility model discloses an electrically operated valve, include: the stator comprises a stator shell, an electromagnetic coil and a plastic insulating shell coated outside the stator shell, a channel which extends along the axial direction of the stator and is open at the lower end is arranged in the stator, a power supply wiring part is arranged on the periphery of the plastic insulating shell, clamping grooves are formed in two sides of the power supply wiring part, and at least one part of the stator shell is exposed out of the power supply wiring part to form an exposed area; a part of the valve body is inserted into the stator along the axial direction of the channel; the connection buckle is clamped on the clamping groove and comprises a flat plate part, two handle parts arranged at two ends of the flat plate part and a conductive part positioned between the two handle parts, one end of the conductive part is connected with one side of the flat plate part, the other end of the conductive part is connected with the exposed area, the clamping part at the other side of the flat plate part is clamped with the valve body, and the handle parts are clamped with the clamping groove. Static electricity is led out by utilizing the contact of the connecting buckle and the exposed area, and the safety of the electric valve is improved.

Description

Electric valve

Technical Field

The utility model belongs to the technical field of the valve, concretely relates to motorised valve.

Background

Patent No. ZL02144348.3 discloses an electric valve, which comprises a valve body, a shell and a stator, wherein the valve body is contacted with and separated from a valve seat in a valve chamber to adjust the passing flow of refrigerant, the shell is fixed on the valve body, a rotor which is contacted and separated from the valve body is arranged in the shell, and the stator is arranged on the shell to drive the rotor to rotate. The rotor and the stator form a stepping motor. The stator is fixed to the valve body and the housing by fitting the housing into the engagement hole and pushing the housing toward the valve body so that the two stem portions of the rotation stop member hold the fluid outflow pipe in the horizontal direction.

In the above scheme, the stator is surrounded by a fully sealed insulating plastic housing molded by die casting using a die casting material,

the rotation stopping component for realizing rotation stopping between the rotor and the stator is installed and fixed on the insulating plastic shell, so that the rotation stopping component is insulated from the stator shell in the stator without direct contact, current conduction cannot be formed between the rotation stopping component and the stator shell, and the problem that the stator shell is not grounded exists. When the electric valve is electrified to work, static electricity is easily gathered on the stator shell, interference can be generated on driving current pulse, and the normal work of the electromagnetic coil device is not facilitated; when an electrical signal of an electromagnetic coil in the stator is abnormal, for example, several thousand volts of noise voltage (such as lightning strike) is added to the electromagnetic coil, the electromagnetic coil may be damaged, or a case may be punctured. Therefore, there is a safety risk in the normal use of the electrically operated valve.

In addition, when the electric valve is used specifically, the stator and the valve body are assembled and fixed, and the electric valve has the defects that the installation and fixing direction is single, and the assembly direction cannot be adjusted.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least.

Therefore, the utility model provides an electrically operated valve, this electrically operated valve have the ground connection function, restrain because the discharge condition that produces between shell and the stator is caused to high-voltage pulse, reduce the pulse voltage to enclosing the influence of circuit or to the damage of casing, improve the advantage of security. Additionally, the utility model aims at still providing a motorised valve with stator and valve body assembly fixed knot construct has the multi-angle and adjusts.

According to the utility model discloses motorised valve, include: the stator comprises a stator shell, an electromagnetic coil and a plastic insulating shell covering the outside of the stator shell, a channel which extends along the axial direction of the stator and is open at the lower end is arranged in the stator, a power supply wiring part is arranged on the periphery of the plastic insulating shell, clamping grooves are formed in two sides of the power supply wiring part, and at least one part of the stator shell is exposed out of the power supply wiring part to form an exposed area; a valve body, a portion of which is inserted into the stator in an axial direction of the passage; the connecting buckle is clamped on the clamping groove and comprises a flat plate part, two handle parts arranged at two ends of the flat plate part and a conductive part positioned between the two handle parts, one end of the conductive part is connected with one side of the flat plate part, the other end of the conductive part is connected with the exposed area, a clamping part is arranged on the other side of the flat plate part and is clamped with the valve body, and the handle parts are clamped with the clamping groove.

According to an embodiment of the present invention, the flat plate portion is disposed on a lower end surface of the plastic insulating case; the handle parts are arranged oppositely, the handle parts are connected with the flat plate part, and the handle parts are clamped on the two clamping grooves on two sides of the power supply wiring part respectively.

According to an embodiment of the invention, the handle comprises: the axial extension part is perpendicular to the flat plate part, one end of the axial extension part is connected with the flat plate part, and the axial extension part is clamped in the clamping groove; the limiting part is arranged at the other end of the axial extension part and protrudes out of one side of the axial extension part.

According to the utility model discloses an embodiment, have two protruding pieces on the lower terminal surface of plastic insulation shell, protruding piece with the flat plate portion offsets and leans on.

According to the utility model discloses an embodiment, the joint groove is followed the axial direction of passageway runs through power wiring portion, spacing portion with the up end of power wiring portion offsets and leans on.

According to the utility model discloses an embodiment, the conductive part with dull and stereotyped portion is mutually perpendicular, the conductive part with expose the region and pass through weld part welded fastening.

According to the utility model discloses an embodiment, the outer peripheral face of valve body is equipped with the coil mount, be provided with one or more along the location portion of circumference interval arrangement on the mount, be provided with joint portion on the flat plate portion, joint portion with location portion cooperation joint.

According to the utility model discloses an embodiment, location portion is the notch, joint portion is for can block into arch in the notch.

According to the utility model discloses an embodiment, location portion is protruding, joint portion is for can the joint bellied notch.

According to the utility model discloses an embodiment, axial extension with the department that links to each other of spacing portion is provided with the stress relief groove.

The utility model has the advantages that the structure is simple, a part of the stator shell positioned in the power supply wiring part is exposed to form an exposed area, and the static electricity accumulated in the stator shell is led out by contacting the exposed area with the connecting buckle, so that the discharging condition generated between the shell and the stator due to high-voltage pulse can be effectively inhibited, the influence of pulse voltage on surrounding circuits or the damage to the shell is reduced, and the safety of the electric valve is improved; on the other hand, the joint portion on the hookup buckle can cooperate with location portion, makes the valve body can adjust installation angle as required, has improved the convenience.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments with reference to the accompanying drawings, in which:

figure 1 is a schematic structural view of an electrically operated valve according to the present invention;

fig. 2 is a schematic structural view of a coupling buckle in an electric valve according to the present invention;

fig. 3 is a schematic structural diagram of a stator in an electrically operated valve according to the present invention;

fig. 4 is a schematic view of the structure of the electric valve according to the present invention in which the coupling buckle is mounted on the stator;

fig. 5 is a schematic structural diagram of a valve body in an electric valve according to the present invention;

FIG. 6 is a schematic cross-sectional view of FIG. 4;

FIG. 7 is an enlarged schematic view at A in FIG. 6;

FIG. 8 is a schematic front view at A in FIG. 6;

reference numerals are as follows:

the electromagnetic coil comprises a stator 10, a valve body 20, a connecting buckle 30, a stator shell 11, an electromagnetic coil 12, a plastic insulating shell 13, a clamping groove 131, a power supply wiring portion 132, an exposed area 14, a protruding block 15, a welding portion 16, a coil fixing frame 21, a positioning portion 211, a flat plate portion 31, a handle portion 311, a clamping portion 32, an axial extending portion 33, a limiting portion 34, a stress relief groove 35 and a conductive portion 36.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

An electrically operated valve according to an embodiment of the present invention will be described in detail below with reference to the drawings.

As shown in fig. 1 to 8, an electrically operated valve according to an embodiment of the present invention includes: the stator 10 comprises a stator shell 11, an electromagnetic coil 12 and a plastic insulating shell 13 coated outside the stator shell 11, a channel which extends along the axial direction of the stator 10 and is open at the lower end is formed in the stator 10, a power supply wiring part 132 is arranged on the periphery of the plastic insulating shell 13, clamping grooves 131 are formed in two sides of the power supply wiring part 132, and at least one part of the stator shell 11 is exposed out of the power supply wiring part 132 to form an exposed area 14; a portion of the valve body 20 is inserted into the stator 10 in the axial direction of the passage; the connecting buckle 30 is clamped on the clamping groove 131, the connecting buckle 30 includes a flat plate portion 31, two handle portions 311 arranged at two ends of the flat plate portion 31, and a conductive portion 36 located between the two handle portions 311, one end of the conductive portion 36 is connected with one side of the flat plate portion 31, the other end of the conductive portion 36 is connected with the exposed area 14, a clamping portion 32 is arranged at the other side of the flat plate portion 31, the clamping portion 32 is clamped with the valve body 20, and the handle portion 311 is clamped with the clamping groove 131.

In other words, the utility model discloses a stator 10 among the motorised valve mainly comprises stator shell 11, the annular solenoid 12 of circle and the cladding at the outside plastic insulation shell 13 of stator shell 11 of installing in stator shell 11, and wherein plastic insulation shell 13 is not electrically conductive, and in valve body 20 inserted solenoid 12, the inside active cell that has of valve body 20, stator 10 can drive the active cell rotation to play the effect of adjusting valve switching size. Compared with the traditional electrically operated valve, the utility model discloses when shaping plastic insulation shell 13, plastic insulation shell 13 need wrap stator shell 11 and power connection, and the part that plastic insulation shell 13 wrapped up the power connection forms power connection portion 132, and two joint grooves 131 set up in the both sides of power connection portion 132, and a part of stator shell 11 exposes in power connection portion 132 simultaneously, forms exposure area 14; two shanks 311 and two joint grooves 131 on the hookup buckle 30 are one-to-one, through the joint relation between two shanks 311 and two joint grooves 131, thereby realize fixing hookup buckle 30 on plastic insulation casing 13, utilize the electrically conductive connection relation between electrically conductive portion 36 and the exposure area 14 on the hookup buckle 30 simultaneously, make hookup buckle 30 and the exposure area 14 contact, be convenient for draw static electricity, hookup buckle 30 and valve body 20 joint mutually simultaneously, on the one hand can fixed valve body 20, on the other hand can realize ground connection through the system pipeline on the valve body 20.

As can be seen from fig. 1, the flat plate portion 31 is disposed against the lower end surface of the plastic insulating housing 13; the two handle portions 311 are oppositely arranged, the two handle portions 311 are connected with the flat plate portion 31, and the two handle portions 311 are respectively clamped in the two clamping grooves 131 on the two sides of the power supply wiring portion 132. Wherein, two joint grooves 131 set up mutually in opposite directions, and two stalk portion 311 can be spacing simultaneously from the power connection portion 132 left and right sides like this for buckle 30 is fixed firm more reliable.

Specifically, the handle 311 includes: the axial extension part 33 is perpendicular to the flat plate part 31, one end of the axial extension part 33 is connected with the flat plate part 31, and the axial extension part 33 is clamped in the clamping groove 131; the stopper 34 is disposed at the other end of the axial extension 33, and the stopper 34 protrudes from one side of the axial extension 33. Preferably, the clamping groove 131 penetrates through the power connection portion 132 along the axial direction of the channel, and the limiting portion 34 abuts against the upper end face of the power connection portion 132. That is, the axial extension portion 33 is in the clamping groove 131, and both ends of the clamping groove 131 are open and can only move along the length direction of the clamping groove 131, and the limiting portion 34 abuts against the upper end face of the plastic insulating housing 13, which limits the axial extension portion 33 to move along the length direction of the clamping groove 131, so that the connecting buckle 30 can be effectively fixed on the power wiring portion 132.

In other words, the flat plate portion 31 and the two limiting portions 34 jointly act to abut against two end faces of the plastic insulating housing 13, respectively, so that the coupling buckle 30 is fixed in the axial direction, the two clamping grooves 131 are arranged opposite to each other, one axial extending portion 33 is clamped in one clamping groove 131, the other axial extending portion 33 is clamped in the other clamping groove 131, and accordingly the coupling buckle 30 is fixed in the radial plane. Therefore, when the connecting buckle 30 is installed, the axial extending part 33 is clamped into the clamping groove 131 along the axial direction, the locking and fixing operation is not needed additionally, and the installation process is simple and reliable.

Further, a stress relief groove 35 is provided where the axially extending portion 33 is connected to the stopper portion 34. Because the limiting part 34 is stressed in the axial direction, the joint of the axial extension part 33 and the limiting part 34 is easy to crack, and the stress relief groove 35 is arranged to replace right-angle connection, so that stress concentration can be effectively relieved, and the joint of the axial extension part 33 and the limiting part 34 is prevented from cracking.

According to an embodiment of the present invention, the lower end face of the plastic insulating housing 13 has two protruding blocks 15, and the protruding blocks 15 abut against the flat plate portion 31. That is, the protruding blocks 15 serve to support the flat plate portion 31, so that a certain gap exists between the flat plate portion 31 and one end surface of the plastic insulating housing 13, so as to accommodate the coil fixing frame 21.

Then, the conductive portion 36 is perpendicular to the flat plate portion 31, and the conductive portion 36 and the exposed region 14 are fixed by soldering by the soldering portion 16. The welded portion 16 is formed by laser welding.

According to the utility model discloses an embodiment, the outer peripheral face of valve body 20 is equipped with coil mount 21, is provided with one or more along the location portion 211 of circumference interval arrangement on the mount 21, is provided with joint portion 32 on the flat plate portion 31, joint portion 32 and location portion 211 cooperation joint.

That is to say, the clamping portion 32 can be matched with any one of the positioning portions 211, and the valve body 20 can be adjusted to a suitable position in the circumferential direction as required and then fixed by the clamping portion 32 on the connecting buckle 30.

Wherein, location portion 211 is the notch, and joint portion 32 is for can block the intraoral arch of notch. Of course, the utility model discloses still provide another kind of structure: the positioning portion 211 is a protrusion, and the clamping portion 32 can clamp the protrusion.

In other words, the positioning portion 211 and the clamping portion 32 are clamped with each other, when one of the positioning portion 211 and the clamping portion 32 is a notch, the other is a protrusion, the positioning portion 211 and the clamping portion 32 may also be other matching structures, as long as the positioning portion 211 and the clamping portion 32 can be matched with each other, such as a hole and pin matching structure.

In summary, the utility model has a simple structure, a part of the stator housing 11 located in the power wiring portion 132 is exposed to form the exposed area 14, and the static electricity accumulated inside the stator housing 11 is led out by contacting the connection buckle 30 with the exposed area 14, so that the discharge condition generated between the housing and the stator due to high-voltage pulse can be effectively inhibited, the influence of pulse voltage on the surrounding circuit or the damage to the housing is reduced, the safety of the electric valve is improved, and meanwhile, the installation process of the connection buckle 30 is convenient and reliable, and the assembly efficiency is high; on the other hand, the clamping portion 32 on the connecting buckle 30 can be matched with the positioning portion 211, so that the valve body 20 can be adjusted in installation angle as required, and convenience is improved.

In the description of the present specification, reference to the description of "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. An electrically operated valve, comprising:

the stator (10), the stator (10) includes a stator housing (11), an electromagnetic coil (12) and a plastic insulating housing (13) covering the outside of the stator housing (11), a channel extending along the axial direction of the stator (10) and having an open lower end is provided in the stator (10), a power connection portion (132) is provided at the periphery of the plastic insulating housing (13), clamping grooves (131) are provided at both sides of the power connection portion (132), and at least a part of the stator housing (11) is exposed from the power connection portion (132) to form an exposed area (14);

a valve body (20), a portion of the valve body (20) being inserted into the stator (10) in an axial direction of the passage;

hookup buckle (30), hookup buckle (30) card is located on joint groove (131), hookup buckle (30) include flat plate portion (31), establish two stalk portion (311) at flat plate portion (31) both ends and be located conductive part (36) between two stalk portion (311), the one end of conductive part (36) with one side of flat plate portion (31) links to each other, the other end of conductive part (36) with it links to each other to expose region (14), the opposite side of flat plate portion (31) is equipped with joint portion (32), joint portion (32) with valve body (20) joint mutually, stalk portion (311) with joint groove (131) joint mutually.

2. Electrically operated valve according to claim 1, characterized in that the flat plate portion (31) is provided against the lower end face of the plastic insulating housing (13); the two handle parts (311) are arranged oppositely, the two handle parts (311) are connected with the flat plate part (31), and the two handle parts (311) are respectively clamped on the two clamping grooves (131) on two sides of the power supply wiring part (132).

3. The electric valve according to claim 2, wherein the handle (311) comprises:

the axial extension part (33), the axial extension part (33) is perpendicular to the flat plate part (31), one end of the axial extension part (33) is connected with the flat plate part (31), and the axial extension part (33) is clamped in the clamping groove (131);

the limiting part (34) is arranged at the other end of the axial extension part (33), and the limiting part (34) protrudes out of one side of the axial extension part (33).

4. The electric valve according to claim 3, characterized in that the plastic insulating housing (13) has two protruding blocks (15) on its lower end face, the protruding blocks (15) abutting against the flat plate portion (31).

5. The electric valve according to claim 3, wherein the catching groove (131) penetrates the power connection portion (132) in an axial direction of the passage, and the stopper portion (34) abuts against an upper end surface of the power connection portion (132).

6. The electric valve according to claim 2, wherein the conductive portion (36) is perpendicular to the flat plate portion (31), and the conductive portion (36) and the exposed area (14) are fixed by welding with a welding portion (16).

7. The electric valve according to claim 2, wherein the outer peripheral surface of the valve body (20) is provided with a coil fixing frame (21), the fixing frame (21) is provided with one or more positioning portions (211) arranged at intervals along the circumferential direction, and the clamping portion (32) is in matched clamping connection with the positioning portions (211).

8. The electric valve as claimed in claim 7, wherein the positioning portion (211) is a slot, and the clamping portion (32) is a protrusion capable of being clamped into the slot.

9. The electric valve as claimed in claim 7, wherein the positioning portion (211) is a protrusion, and the engaging portion (32) is a notch capable of engaging with the protrusion.

10. An electric valve according to claim 3, characterised in that a stress relief groove (35) is provided where the axial extension (33) and the stop portion (34) are connected.

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