CN112833238B

CN112833238B - Solenoid for electromagnetic valve

Info

Publication number: CN112833238B
Application number: CN202110091995.7A
Authority: CN
Inventors: 徐伟; 杨韩成; 李恒; 赵仁威
Original assignee: Shanghai Shuoda Electronic Technology Co ltd
Current assignee: Shanghai Shuoda Electronic Technology Co ltd
Priority date: 2021-01-23
Filing date: 2021-01-23
Publication date: 2022-08-16
Anticipated expiration: 2041-01-23
Also published as: CN112833238A

Abstract

The utility model relates to a solenoid for electromagnetic valve, it includes the coil former, the coil former includes the winding part and fixes the flange portion that sets up at the winding part both ends, the winding has the wire in the winding part, the wire both ends are all fixed and are provided with the terminal, the terminal is connected with the coil former, one of them flange portion circumference is seted up flutedly, the intercommunication mouth has been seted up to one side that the recess is close to the winding part, the both ends of wire all pass the intercommunication mouth and around establish in the recess. The present application has the effect of reducing the axial dimension of the solenoid to reduce the installation space of the solenoid.

Description

Solenoid for electromagnetic valve

Technical Field

The present application relates to the field of solenoid valves, and more particularly, to a solenoid for a solenoid valve.

Background

A solenoid valve is an actuator that regulates fluid by electromagnetic control. The electromagnetic valve comprises an electromagnetic coil, a valve body and an opening and closing piece, wherein a solenoid is arranged in the electromagnetic coil, and the solenoid can generate electromagnetic force after being electrified to control the opening and closing piece and open or close the valve.

As shown in fig. 1, the conventional solenoid includes a coil frame 1, the coil frame 1 includes a winding portion 11 and flange portions 12 fixedly disposed at two ends of the winding portion 11, a conductive wire 2 is wound on the winding portion 11, an extension portion 126 is fixedly disposed on one of the flange portions 12, a length direction of the extension portion 126 is along an axial direction of the coil frame 1, two terminals 3 are fixedly disposed at one end of the extension portion 126 away from the coil frame 1, a length direction of the terminal 3 is the same as a length direction of the extension portion 126, a groove 121 is disposed on the extension portion 126 along the length direction thereof, two grooves 121 are disposed, two ends of the conductive wire 2 respectively bypass the two grooves 121 and are fixedly connected with the two terminals 3.

In view of the above-mentioned related art, the inventor believes that in the conventional solenoid, in order to wind the wire tightly on the bobbin, it is necessary to provide an extension portion on the bobbin, and to wind the wire around the groove on the extension portion and then fix the wire, so that the resistance generated between the wire and the extension portion can offset the tensile force applied to a part of the wire, but inevitably, the axial dimension of the solenoid is increased, and the volume of the solenoid is increased.

Disclosure of Invention

In order to reduce the axial dimension of a solenoid to reduce the installation space of the solenoid, the present application provides a solenoid for an electromagnetic valve.

The solenoid for the electromagnetic valve adopts the following technical scheme:

the utility model provides a solenoid for solenoid, includes the coil former, and the coil former includes the winding part and fixes the flange portion that sets up at the winding part both ends, and the winding has the wire on the winding part, and the wire both ends are all fixed and are provided with the terminal, and the terminal is connected with the coil former, and one of them flange portion circumference is seted up flutedly, and the intercommunication mouth has been seted up to one side that the recess is close to the winding part, and the both ends of wire all pass the intercommunication mouth and around establishing in the recess.

Through adopting above-mentioned technical scheme, set up the recess in the circumference of flange portion, make the wire around establishing in the recess and fixed with the terminal, the frictional resistance that produces between wire and the flange portion can effectively offset the pulling force that the wire bore this moment, makes the wire wind tightly on the coil former to adopt the mode of circumference wire winding can avoid setting up the extension on the coil former, thereby reduced the axial dimension of solenoid, reduced the installation space of solenoid.

Preferably, the terminal is provided on the flange portion provided with the groove in a radial direction of the bobbin.

By adopting the technical scheme, the existing terminal is arranged along the axial direction of the coil frame, and the axial size of the solenoid is inevitably increased; the terminal is arranged on the flange part along the radial direction of the coil frame, so that the axial dimension of the solenoid can be effectively reduced, the axial dimension of the solenoid is the same as that of the coil frame, and the axial installation space of the solenoid is reduced.

Preferably, the flange part provided with the groove is provided with a clamping groove, and one end of the terminal connected with the lead is inserted into the clamping groove.

Through adopting above-mentioned technical scheme, set up the draw-in groove on flange portion to the one end that makes terminal and wire be connected is inserted and is established in the draw-in groove, and the draw-in groove can play limiting displacement to the terminal, has effectively improved joint strength and stability between terminal and the flange portion.

Preferably, a positioning block made of elastic materials is embedded in the clamping groove, a positioning seam is formed in the positioning block, and the terminal is inserted into the positioning seam.

Through adopting above-mentioned technical scheme, set up the locating piece in the draw-in groove, insert the terminal in establishing the positioning seam on the locating piece, under the elastic action of locating piece, the locating piece can press from both sides the terminal tightly in the positioning seam, further fixes a position the terminal, avoids the terminal to take place the skew, has improved the installation stability of terminal.

Preferably, the terminal is hinged to the coil frame, the clamping groove penetrates through the inner wall and the outer wall of the flange portion, a first clamping block is fixedly arranged at one end, close to the inner wall of the flange portion, in the clamping groove, a second clamping block is fixedly arranged at the other end of the clamping groove, and the first clamping block and the second clamping block are respectively used for clamping two ends of the terminal in the clamping groove.

By adopting the technical scheme, when the terminal clamping device is used, the terminal rotates to one end close to the outer wall of the flange part in the clamping groove, and the second clamping block plays a role in positioning the positioning block and the terminal; when the solenoid was in non-user state, if when transporting or carrying, can be with terminal rotation 180 in the draw-in groove to the extrusion locating piece makes the locating piece card establish in one side that first fixture block is close to the winding part, and the terminal rotates to the one end that is close to flange portion inner wall this moment, has not only reduced the size of solenoid, also avoids making the terminal receive the damage in non-user state.

Preferably, a torsion spring is disposed between the flange portion and the terminal for clamping the terminal at a side close to the second clamping block.

Through adopting above-mentioned technical scheme, set up the torsional spring between flange portion and terminal, under the elastic force effect of torsional spring, can make the terminal be blocked and establish the one side that is close to the second fixture block, ensure the stability of terminal user state, avoid the locating piece to deviate from the second fixture block and influence the use of terminal.

Preferably, the groove is internally fixedly provided with a rubber strip, the rubber strip is provided with a winding seam, and the wire is wound in the winding seam.

Through adopting above-mentioned technical scheme, set up the rubber strip in the recess, can make the wire around the coiling seam on the rubber strip in, play limiting displacement to the wire, avoid the wire to take place the skew in the recess and influence the wire degree of winding tightly on the coil former.

Preferably, the grooves are corrugated in their direction of extension.

Through adopting above-mentioned technical scheme, set up the recess into the corrugate along its extending direction, can effectively increase the frictional resistance between wire and the flange portion, not only can reduce the offset of wire in the recess, also further improved the wire and wound tight degree on the coil former.

Preferably, both sides of the communication port are arc-shaped.

Through adopting above-mentioned technical scheme, all set up the both sides of intercommunication mouth into circular-arcly, make the wire can be at circular arc transition between winding portion and recess, avoid the closed angle of intercommunication mouth department to produce wearing and tearing to the wire to play the guard action to the wire.

Preferably, both ends of the wire are respectively wound around one end of the two terminals connected to the bobbin.

Through adopting above-mentioned technical scheme, twine the wire on the terminal and fix with the terminal, not only increased the area of contact of wire and terminal, also improved the joint strength of wire and terminal, reduced the possibility that the hookup location of wire and terminal takes place to separate.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the groove is formed in the circumferential direction of the flange part, so that an extending part is prevented from being arranged on the coil frame, the axial size of the solenoid is reduced, and the installation space of the solenoid is reduced;

2. the terminal is arranged along the radial direction of the coil frame, so that the axial size of the solenoid can be effectively reduced, and the axial installation space of the solenoid is reduced;

3. by hinging the terminal with the coil frame, the terminal can be rotated to one side close to the inner wall of the flange part in a non-use state, so that the size of the solenoid is reduced, and the terminal is prevented from being damaged.

Drawings

FIG. 1 is a schematic diagram of a prior art configuration;

FIG. 2 is a schematic structural view of embodiment 1;

FIG. 3 is a partial structural schematic view intended to show the communication port;

FIG. 4 is a schematic view of a partial structure intended to show a positioning block;

FIG. 5 is a schematic structural view of example 2;

FIG. 6 is a partial structural schematic view intended to show a torsion spring;

fig. 7 is a partial configuration diagram of a terminal receiving state.

Description of reference numerals: 1. a bobbin; 11. a winding section; 12. a flange portion; 121. a groove; 1211. a rubber strip; 12111. winding and sewing; 122. a communication port; 123. a card slot; 1231. a first clamping block; 1232. a second fixture block; 124. positioning blocks; 1241. positioning the seam; 125. a torsion spring; 126. an extension portion; 2. a wire; 3. and a terminal.

Detailed Description

The present application is described in further detail below with reference to figures 2-7.

The embodiment of the application discloses a solenoid for an electromagnetic valve.

Example 1

Referring to fig. 2, a solenoid for an electromagnetic valve includes a bobbin 1, a wire 2 wound around the bobbin 1, two terminals 3 fixed to the bobbin 1, and two ends of the wire 2 respectively fixed to the two terminals 3.

Referring to fig. 2, the bobbin 1 includes a winding portion 11 and flange portions 12, the winding portion 11 is cylindrical, the flange portions 12 are annular and are disposed coaxially with the winding portion 11, two flange portions 12 are disposed and fixedly disposed at both ends of the winding portion 11, respectively, an inner diameter of the flange portion 12 is equal to an inner diameter of the winding portion 11, an outer diameter of the flange portion 12 is larger than an outer diameter of the winding portion 11, the lead wire 2 is wound around the winding portion 11, and the terminal 3 is fixedly disposed on one of the flange portions 12.

Referring to fig. 2 and 3, a circumferential surface of the flange portion 12 on which the terminal 3 is provided with an annular groove 121, one side of the groove 121 close to the winding portion 11 is provided with a communication opening 122, the communication opening 122 penetrates one side of the flange portion 12 close to the winding portion 11, and both sides of the communication opening 122 are arc-shaped. An annular rubber strip 1211 is fixedly embedded in the groove 121, the rubber strip 1211 is matched with the groove 121 in size, a winding seam 12111 is formed in the rubber strip 1211, and two ends of the lead 2 pass through the communication opening 122 and are wound in the winding seam 12111.

The wire 2 is wound in the winding slit 12111 along the circumferential direction of the bobbin 1, and the frictional resistance between the rubber strip 1211 and the wire 2 can cancel a part of the tensile force applied to the wire 2, so that the wire 2 is wound tightly on the bobbin 1. The mode of winding wire through circumference avoids setting up extension 126 at the axial of coil former 1, has effectively reduced the axial dimension of solenoid, has reduced the installation space of solenoid.

Referring to fig. 4, two clamping grooves 123 are formed in the side face of the flange portion 12 where the terminal 3 is disposed, the clamping grooves 123 are communicated with the groove 121, a positioning block 124 is fixedly embedded in the clamping grooves 123, the positioning block 124 is made of elastic material, in this embodiment, the positioning block 124 is made of rubber material, a positioning seam 1241 is formed in the positioning block 124, two ends of the wire 2 are respectively wound on one end of the two terminals 3, and the terminal 3 is radially inserted into the positioning seam 1241 along the coil frame 1. The terminal 3 is clamped in the positioning slot 1241 along the radial direction of the coil frame 1, the axial size of the solenoid is further reduced, and the mounting space of the solenoid in the axial direction is reduced.

The implementation principle of the embodiment 1 of the application is as follows: the lead 2 is wound in the winding seam 12111 along the circumference of the coil rack 1 on the flange part 12, so that the lead 2 can avoid the arrangement of the extension part 126 in the axial direction of the coil rack 1 on the premise of tight winding, and the terminal 3 is arranged along the radial direction of the coil rack 1, thereby effectively reducing the axial size of the solenoid and reducing the installation space of the solenoid.

Example 2

This embodiment is different from embodiment 1 in that, referring to fig. 5 and 6, the groove 121 is corrugated in the extending direction thereof, the shape of the rubber strip 1211 is fitted to the groove 121, and the shape of the winding seam 12111 on the rubber strip 1211 is the same as the shape of the groove 121. The wire 2 is wound in a wavy manner in the winding slit 12111 along the circumferential direction of the bobbin 1, effectively increasing the frictional resistance between the wire 2 and the rubber strip 1211, thereby ensuring that the wire 2 is wound tightly on the bobbin 1.

Referring to fig. 6, the catching groove 123 penetrates through the inner and outer walls of the flange portion 12, and simultaneously penetrates through a side of the flange portion 12 away from the winding portion 11. One end of the terminal 3 connected to the lead 2 is located in the notch 123 and is hinged to the flange 12, and the hinge axis of the terminal 3 is perpendicular to the longitudinal direction of the terminal 3 and perpendicular to the axial direction of the bobbin 1. A torsion spring 125 is disposed between the flange 12 and the terminal 3, one end of the torsion spring 125 is fixedly connected to the flange 12, and the other end is fixedly connected to the terminal 3, and is used for pressing the terminal 3 in the slot 123 on the side close to the outer wall of the flange 12.

Referring to fig. 6 and 7, a first latching block 1231 is fixedly disposed at one end of the slot 123 close to the inner wall of the flange portion 12, a second latching block 1232 is fixedly disposed at the other end of the slot 123, two first latching blocks 1231 and two second latching blocks 1232 are disposed and respectively located at two sides of the terminal 3 in the length direction, the first latching blocks 1231 and the second latching blocks 1232 are both located at one side of the positioning block 124 away from the winding portion 11, and the positioning block 124 abuts against the first latching blocks 1231 or the second latching blocks 1232.

When the solenoid is used, under the elastic force of the torsion spring 125, the terminal 3 rotates in the slot 123 to a side close to the outer wall of the flange portion 12, and at this time, the positioning block 124 is clamped at a side of the second clamping block 1232 close to the winding portion 11, so as to position the terminal 3.

When the solenoid is transported or carried, the terminal 3 rotates 180 degrees in the clamping groove 123, and the positioning block 124 is extruded, so that the positioning block 124 is transmitted to one side of the first positioning block 124 close to the winding part 11, the terminal 3 is stored and protected, and the terminal 3 is prevented from being exposed outside the solenoid and damaged.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a solenoid for solenoid, includes coil former (1), and coil former (1) includes winding part (11) and fixed flange portion (12) that set up at winding part (11) both ends, and the winding has wire (2) on winding part (11), and wire (2) both ends are all fixed and are provided with terminal (3), and terminal (3) are connected its characterized in that with coil former (1): a groove (121) is formed in the circumferential direction of one of the flange portions (12), a communication opening (122) is formed in one side, close to the winding portion (11), of the groove (121), and two ends of the lead (2) penetrate through the communication opening (122) and are wound in the groove (121);

the terminal (3) is arranged on the flange part (12) provided with the groove (121) along the radial direction of the coil rack (1);

a clamping groove (123) is formed in the flange portion (12) provided with the groove (121), and one end, connected with the lead (2), of the terminal (3) is inserted into the clamping groove (123).

2. The solenoid according to claim 1, wherein: the clamping groove (123) is embedded with a positioning block (124) made of elastic materials, a positioning slit (1241) is formed in the positioning block (124), and the terminal (3) is inserted into the positioning slit (1241).

3. The solenoid according to claim 1, wherein: the terminal (3) is hinged to the coil rack (1), the clamping groove (123) penetrates through the inner wall and the outer wall of the flange portion (12), a first clamping block (1231) is fixedly arranged at one end, close to the inner wall of the flange portion (12), in the clamping groove (123), a second clamping block (1232) is fixedly arranged at the other end of the clamping groove, and the first clamping block (1231) and the second clamping block (1232) are respectively used for clamping the terminal (3) at two ends in the clamping groove (123).

4. A solenoid according to claim 3, wherein: and a torsion spring (125) used for clamping the terminal (3) at one side close to the second clamping block (1232) is arranged between the flange part (12) and the terminal (3).

5. The solenoid according to claim 1, wherein: the groove (121) is internally and fixedly provided with a rubber strip (1211), the rubber strip (1211) is provided with a winding seam (12111), and the lead (2) is wound in the winding seam (12111).

6. The solenoid according to claim 1, wherein: the grooves (121) are corrugated in the direction of their extension.

7. The solenoid according to claim 1, wherein: both sides of the communication opening (122) are arc-shaped.

8. The solenoid according to claim 1, wherein: and two ends of the lead (2) are respectively wound on one end of the two terminals (3) connected with the coil rack (1).