CN218038732U

CN218038732U - Magnetic yoke, coil assembly using same and electromagnetic valve

Info

Publication number: CN218038732U
Application number: CN202221945657.1U
Authority: CN
Inventors: 敖林
Original assignee: Hanyu Group JSCL
Current assignee: Hanyu Group JSCL
Priority date: 2022-07-25
Filing date: 2022-07-25
Publication date: 2022-12-13
Anticipated expiration: 2032-07-25

Abstract

The utility model provides a yoke, applied coil pack and solenoid valve of this yoke which characterized in that: the main body of the magnetic yoke is strip metal and comprises a convex block part and a first notch, wherein the convex block part is located at one end and extends outwards, the first notch is located at the other end, the convex block part is pressed into the first notch after bending to form a frame-shaped body which is connected end to end, and the head end and the tail end of the magnetic yoke are further provided with a buckling limiting structure for limiting the magnetic yoke to be loosened in the X direction and the Z direction. The magnetic yoke of the utility model adopts strip metal to form a frame body with head and tail parts which can limit the Z-direction loosening of the magnetic yoke through buckling. Through above-mentioned design, reduce the number of yoke concatenation interface and reduce the yoke because of the pine takes off or the concatenation position bad contact leads to the risk that magnetic conductivity reduces, promotes the magnetic conductivity and the stability of yoke. Through above-mentioned design, reduce the number of yoke concatenation interface and reduce the yoke because of taking off or concatenation position contact failure leads to the risk that magnetic conductivity reduces, promote the magnetic conductivity and the stability of yoke.

Description

Magnet yoke, coil assembly applying same and electromagnetic valve

Technical Field

The utility model relates to a yoke especially relates to a coil pack and solenoid valve of using this yoke, and its IPC classification number is F16K 31/06.

Background

In the conventional yoke-equipped coil assembly, as shown in patent publication No. CN215891327U, the yoke is designed into 2 parts, and the 2 parts are riveted or welded after being spliced. The coil component has the advantages that the magnetic conduction performance is reduced due to the fact that the magnet yoke connecting structure is loosened, and the product performance of the coil component is seriously influenced.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a reliable yoke of connection structure, coil pack and solenoid valve that have good magnetic conductivity.

The utility model adopts the technical proposal that:

a magnetic yoke, characterized in that: the main body of the magnetic yoke is strip metal and comprises a convex block part and a first notch, wherein the convex block part is located at one end and extends outwards, the first notch is located at the other end, the convex block part is pressed into the first notch after being bent to form a frame-shaped body which is connected end to end, and the head end and the tail end of the magnetic yoke are further provided with buckling limit structures for limiting the X direction and the Z direction of the magnetic yoke to be loosened.

The magnetic yoke of the utility model adopts strip metal to form a frame body with head and tail parts which can limit the Z-direction loosening of the magnetic yoke through buckling. Through above-mentioned design, reduce the number of yoke concatenation interface and reduce the yoke because of taking off or concatenation position contact failure leads to the risk that magnetic conductivity reduces, promote the magnetic conductivity and the stability of yoke.

Furthermore, the buckling limiting structure is that the same end of the magnetic yoke and the convex buckling part is also provided with a buckling part with the width of the tail end being increased, the same end of the magnetic yoke and the first notch is also provided with a second notch matched with the outline shape of the buckling part, and the buckling part is buckled into the second notch after being bent.

Further, the yoke still is equipped with 1 st through-hole, 2 nd through-hole, and after the shaping of bending, 1 st through-hole sets up with 2 nd through-hole relatively.

A coil component comprises a columnar coil rack with a hollow hole, an enamelled wire, an inserting piece and a magnetic yoke, wherein the inserting piece is fixed on the coil rack and is electrically connected with the enamelled wire, and the magnetic yoke is sleeved on the outer side of the coil rack.

Furthermore, the coil component further comprises a 1 st magnetic sleeve and a 2 nd magnetic sleeve, wherein the 1 st magnetic sleeve penetrates through the 1 st through hole to be inserted into one axial side of the hollow hole of the coil rack, and the 2 nd magnetic sleeve penetrates through the 2 nd through hole to be inserted into the other axial side of the hollow hole of the coil rack.

The utility model provides an electromagnetic valve, includes plastic packaging coil, valve gap, valve plug subassembly, spring and is equipped with the movable core of rubber buffer, and plastic packaging coil includes coil plastic packaging portion and casing portion, and coil plastic packaging portion includes foretell coil pack and moulds plastics in this coil pack's plastic packaging shell, its characterized in that: the enameled wire is sealed in the plastic envelope shell, and the inserted sheet supplies the part of external power supply, 1 st flux sleeve and 2 nd flux sleeve to expose in moulding the capsule shell, the casing portion with coil plastic envelope portion moulds plastics for the inserts and forms, and it covers the sleeve part on the internal face of 1 st flux sleeve and 2 nd flux sleeve and from this sleeve part's an end radial direction toward overhanging flange portion including moulding plastics. This solenoid valve forms the plastic envelope coil with coil pack through secondary plastic envelope, and the coil is sealed in the plastic envelope shell, avoids coil pack to receive outside service environment's influence (like damp environment) easily to appear damaging, promotes solenoid valve job stabilization nature.

Furtherly, the valve plug subassembly sets up on flange portion, and it includes the valve plug and the valve plug rubber of locating on the valve plug with the cover, and axial valve plug hole is established to the valve plug, and at initial state, the rubber plug is with the shutoff of valve plug hole. The electromagnetic valve with the design is simple in structure and convenient to produce and assemble.

For a better understanding and an implementation, the present invention is described in detail below with reference to the accompanying drawings.

Drawings

Fig. 1 is a schematic view of a three-dimensional structure of the magnetic yoke before bending and connecting;

fig. 2 is a schematic perspective view of the magnetic yoke of the present invention;

fig. 3 is a schematic perspective view of the coil assembly of the present invention;

fig. 4 is a schematic view of a cross-sectional structure of the coil assembly of the present invention

FIG. 5 is a schematic view of a three-dimensional structure of the coil assembly after one-time injection molding;

fig. 6 is a schematic view of the three-dimensional structure of the plastic-sealed coil of the present invention;

fig. 7 is a cross-sectional view of the plastic-sealed coil of the present invention;

fig. 8 is a schematic perspective view of the electromagnetic valve of the present invention;

fig. 9 is a cross-sectional view of the solenoid valve of the present invention;

wherein: 1-accommodating cavity, 2-water passing cavity, 10-coil plastic package part, 11-plastic package part, 20-shell part, 21-sleeve part, 22-flange part, 30-valve cover, 41-valve plug, 42-valve plug rubber, 43-valve plug hole, 50-spring, 60-rubber plug, 70-movable iron core, 100-coil component, 110-coil rack, 111-hollow hole, 120-enameled wire, 130-insert sheet, 140-magnet yoke, 141-1 st end face, 142-2 nd end face, 143-lug part, 143.1-forked part, 144-first notch, 145-buckling part, 146-1 st through hole, 147-2 nd through hole, 148-3 rd through hole, 149-second notch, 150-1 st magnetic conductive sleeve and 160-2 nd magnetic conductive sleeve

Detailed Description

For convenient description, the utility model discloses the settlement is the X direction along X line direction, is the Y direction along Y line direction, is the Z direction along Z line direction.

As shown in fig. 1, the yoke is made of a strip of metal, one end of which extends outward to form a protruding portion 143 and a buckling portion 145 with a wider tail end; the other end is provided with a first notch 144 matched with the convex part 143 and a second notch 149 matched with the outline shape of the buckling part 145. After the strip-shaped metal is bent and formed, the bump part 143 is pressed into the first notch 144, the bump part 143 is punched to form a forked part 143.1, the forked part 143.1 enables the bump part 143 to be tightly matched with the first notch 144, and limitation is formed in the X direction and the Y direction; the buckling part 145 is buckled into the second notch 149 after being bent, and limits the X direction and the Z direction of the head end and the tail end of the magnetic yoke. Through foretell design, the three direction of yoke has all realized spacingly, prevents the pine and takes off, and the installation is firm. Of course, as another embodiment, the branch portion 143.1 or the width-enlarged portion may be directly punched on the tail end of the bump portion before bending the strip metal, and when bending, the branch portion 143.1 is directly clamped to the outer side of the first notch 144; it is also possible to press the protruding portion 143 into the first notch 144 for electric welding.

Further, as shown in fig. 2, the strip-shaped metal is bent into the yoke 140 to form a 1 st end surface 141 perpendicular or close to perpendicular to the line Z and a 2 nd end surface 142 perpendicular or close to perpendicular to the line Y. The utility model discloses an establish 3 at least through-holes on yoke 140, be 1 st through-hole 146, 2 nd through-hole 147 and 3 rd through-hole 148 respectively. The 1 st through hole 146 is located on the 1 st end surface 141, and the 2 nd through hole 147 is located on a surface opposite to the 1 st end surface 141, and is opposite to the 1 st through hole 146 and located on the same axis in the Z direction. The 3 rd through hole 148 is located on the 2 nd end surface 142 or/and on a surface opposite the 2 nd end surface 142. This design is convenient for yoke and fixed with other part installations above that, promotes the joint strength between yoke and the part of fixed connection above that.

The utility model discloses still disclose a coil pack, see fig. 2 to 4, this coil pack 100 including the cylindrical coil former 110 that has well cavity 111, twine the enameled wire 120 on the coil former, be fixed in coil former 110 on and with the inserted sheet 130 and the foretell yoke 140 that enameled wire 120 electric conductance is connected, the outside of coil former 110 is located to yoke 140 cover. Further, the coil assembly 100 further includes a 1 st flux sleeve 150 and a 2 nd flux sleeve 160. During assembly, the 1 st flux sleeve 150 is inserted into one axial side of the hollow hole 111 of the bobbin through the 1 st through hole 146, and the 2 nd flux sleeve 160 is inserted into the other axial side of the hollow hole 111 of the bobbin through the 2 nd through hole 147. The structure is convenient for processing and producing parts and is beneficial to the magnetic conductivity of the coil component.

The utility model discloses still disclose a solenoid valve, see fig. 5 to fig. 9, this solenoid valve includes plastic envelope coil, valve gap 30, valve plug subassembly, spring 50 and is equipped with rubber buffer 60's movable iron core 70. The plastic package coil comprises a coil plastic package portion 10 and a shell portion 20, wherein the coil plastic package portion comprises the coil assembly 10 and a plastic package shell 11 injected to the coil assembly. The enameled wire 120 is sealed in the plastic package case 11, and the insertion piece 130 is exposed out of the plastic package case 11 for the part of the external power supply, the 1 st flux sleeve 150 and the 2 nd flux sleeve 160. The housing portion 20 is formed by insert molding the coil plastic-sealed portion 10, and includes a sleeve portion 21 that is injection-molded to cover inner wall surfaces of the 1 st flux sleeve 150 and the 2 nd flux sleeve 160, and a flange portion 22 that extends radially outward from one end of the sleeve portion 21. The utility model discloses a sealed be that coil pack is through moulding plastics the back, form to the enameled wire and accord with shell protection grade and mould the sealing case for IP 54. This solenoid valve forms the plastic envelope coil with coil pack through secondary plastic envelope, and the coil is sealed in the plastic envelope shell, avoids coil pack to receive outside service environment's influence (like damp environment) easily to appear damaging, promotes solenoid valve job stabilization nature.

Referring to fig. 8 and 9, the valve plug assembly includes a valve plug 41 and a valve plug rubber 42 fitted over the valve plug and disposed on the flange portion 22 to space the water passing chamber 2 formed by the flange portion 22 from the valve cap 30. The valve plug 42 is provided with an axial plug hole 43, and in an initial state, the rubber plug 60 plugs the plug hole 43. The electromagnetic valve with the design has the advantages of simple structure, convenience in production and assembly, reliable connection of the magnet yoke and stable magnetic conductivity of the coil assembly.

The present invention is not limited to the above embodiment, and if various modifications or variations of the present invention do not depart from the spirit and scope of the present invention, they are intended to be covered if they fall within the scope of the claims and the equivalent technology of the present invention.

Claims

1. A magnetic yoke, characterized in that: the magnetic yoke is mainly made of strip metal and comprises a convex block part (143) and a first notch (144), wherein the convex block part (143) is located at one end and extends outwards, the first notch (144) is located at the other end, the convex block part (143) is pressed into the first notch (144) after being bent and fixed to form a frame body which is connected end to end, and the head end and the tail end of the magnetic yoke are further provided with buckling limiting structures for limiting the magnetic yoke to be loosened in the X direction and the Z direction.

2. The magnetic yoke according to claim 1, characterized in that: the buckling limiting structure is characterized in that the same end of the magnetic yoke and the convex buckling part (143) is also provided with a buckling part (145) with the width of the tail end being increased, the same end of the magnetic yoke and the first notch (144) is also provided with a second notch (149) matched with the outline shape of the buckling part (145), and the buckling part (145) is buckled into the second notch (149) after being bent.

3. The magnetic yoke according to claim 2, characterized in that: the magnet yoke is further provided with a 1 st through hole (146) and a 2 nd through hole (147), and after bending forming, the 1 st through hole (146) and the 2 nd through hole (147) are oppositely arranged.

4. A coil assembly comprising a cylindrical bobbin (110) having a hollow hole (111), an enamel wire (120), an insert (130) fixed to the bobbin (110) and electrically connected to the enamel wire (120), and a yoke (140) according to any one of claims 1 to 3, wherein: the magnetic yoke (140) is sleeved outside the coil rack (110).

5. The coil assembly of claim 4, wherein: still include 1 st magnetic conductive sleeve (150) and 2 nd magnetic conductive sleeve (160), 1 st magnetic conductive sleeve (150) passes 1 st through-hole (146) and inserts the axial one side of installing in the cavity hole (111) of coil former, 2 nd magnetic conductive sleeve (160) passes 2 nd through-hole (147) and inserts the axial opposite side of installing in the cavity hole (111) of coil former.

6. The utility model provides an electromagnetic valve, includes plastic packaging coil, valve gap (30), valve plug subassembly, spring (50) and is equipped with movable core (70) of rubber buffer (60), the plastic packaging coil includes coil plastic packaging portion (10) and casing portion (20), coil plastic packaging portion (10) include claim 5 coil pack and mould plastics in plastic packaging shell (11) of this coil pack, its characterized in that: enameled wire (120) are sealed in plastic envelope shell (11), inserted sheet (130) supply external power supply's part, 1 st magnetic conductive sleeve (150) and 2 nd magnetic conductive sleeve (160) expose and expose in moulding package shell (11), casing portion (20) with coil plastic envelope portion (10) are the inserts formation of moulding plastics, and it covers sleeve part (21) on the internal face of 1 st magnetic conductive sleeve (150) and 2 nd magnetic conductive sleeve (160) and radially toward overhanging flange portion (22) from an end of this sleeve part (21) including moulding plastics.

7. The solenoid valve according to claim 6, wherein: the valve plug subassembly sets up on flange part (22), and it includes valve plug (41) and overlaps valve plug rubber (42) of locating on the valve plug, axial valve plug hole (43) are established in valve plug (42), at initial state, rubber plug (60) are with valve plug hole (43) shutoff.