CN210221161U

CN210221161U - Electromagnetic coil shell and electromagnetic flowmeter

Info

Publication number: CN210221161U
Application number: CN201921396030.3U
Authority: CN
Inventors: Lei Qiang; 强磊; Zhanjun Guo; 郭占军; Xingwei Xu; 徐兴伟; Lei Wang; 王磊
Original assignee: Kaifeng Baite Flow Instrument Co Ltd
Current assignee: Kaifeng Baite Flow Instrument Co Ltd
Priority date: 2019-08-27
Filing date: 2019-08-27
Publication date: 2020-03-31
Anticipated expiration: 2029-08-27

Abstract

The utility model provides a solenoid shell and electromagnetic flowmeter relates to electromagnetic flowmeter technical field to solve the solenoid that exists among the prior art and need artifical winding adhesive tape, the higher technical problem of cost. The device comprises a wire shell, wherein an annular cavity is formed in the wire shell, a coil is arranged in the annular cavity, the coil is electrified, a magnetic field perpendicular to the coil is generated in an inner ring of the annular cavity, the wire shell is provided with a splicing structure for controlling the opening and closing of the annular cavity, the annular cavity is opened, the coil is placed in the annular cavity, the annular cavity is closed, and the coil is sealed in the annular cavity. The utility model discloses a line shell with mosaic structure can place the coil in line shell internal seal, and easy operation practices thrift the manual work.

Description

Electromagnetic coil shell and electromagnetic flowmeter

Technical Field

The utility model belongs to the technical field of the electromagnetic flow meter technique and specifically relates to a solenoid shell and electromagnetic flow meter are related to.

Background

The electromagnetic flowmeter is a metering instrument for measuring the flow of liquid, and the measuring principle of the electromagnetic flowmeter is based on the Faraday law of electromagnetic induction. The sensor part is composed of a coil, an electrode and an insulating lining, the coil in the sensor is electrified to generate a magnetic field during measurement, when a conductive fluid passes through the magnetic field, tiny induced electromotive force is generated due to the action force of cutting magnetic lines, the tiny induced electromotive force is collected by the electrode and is transmitted to a converter part of the instrument, signals are amplified, corrected and the like, then the signals are converted into corresponding flow data through a formula, and finally the corresponding flow data are displayed to the instrument.

The existing electromagnetic coil protection is mainly formed by winding adhesive tapes on the surface of a coil for fixing and forming through manual work, and a shell for protecting the coil is formed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a solenoid shell to solve existence among the prior art

The electromagnetic coil needs to be wound with adhesive tape manually, and the cost is high. The utility model provides a great deal of technological effect (efficient, with low costs, convenient to use) that preferred technical scheme among a great deal of technical scheme can produce see the explanation below in detail.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a pair of solenoid shell, including the line shell, the annular cavity has been seted up in the line shell, the coil set up in the annular cavity, the coil circular telegram, produce in the inner ring of annular cavity with coil vertically magnetic field, the line shell has control the mosaic structure of annular cavity switching, the annular cavity is opened, the coil place in the annular cavity, the annular cavity is closed, the coil seal in the annular cavity.

Preferably, the line shell includes the epitheca and with the inferior valve that the epitheca matches the setting, set up first annular groove in the epitheca, set up second annular groove in the inferior valve, first annular groove with second annular groove symmetry sets up, the epitheca with the inferior valve concatenation, first annular groove with the second annular groove has constituted and has held the annular cavity of coil.

Preferably, the bottom surface of epitheca with the bottom surface laminating of inferior valve is in order to seal annular cavity, set up the concave spread groove that establishes of a week along its bottom surface rotation on the bottom surface of epitheca, set up the protruding connection wall that establishes of a week along its bottom surface rotation on the bottom surface of inferior valve, the epitheca with the inferior valve concatenation, connection wall matching inserts in the spread groove, annular cavity is sealed.

Preferably, the metal wire further comprises a lining, the lining is in a U shape, the lining is arranged at intervals along the circumferential direction of the inner wall of the annular cavity and perpendicular to the inner wall of the annular cavity, a U-shaped groove is formed in the lining, and the coil is arranged on the U-shaped groove and arranged at intervals with the inner wall of the annular cavity.

Preferably, the linings are respectively arranged along the inner wall of the first annular groove and the inner wall of the second annular groove at intervals in the circumferential direction, and the linings in the first annular groove and the linings in the second annular groove are symmetrically arranged, so that a fixing opening through which the synthetic coil passes is enclosed between the two symmetrically arranged linings.

Preferably, the bobbin is annular, and the annular cavity is arranged in the bobbin along the circumferential direction of the bobbin, so that the coil in the annular cavity can be wound annularly along the annular cavity.

Preferably, including surveying buret, preforming, electrode and an electromagnetic coil shell, the line shell is provided with two, through the preforming symmetry is fixed in survey buret's perisporium both sides, the electrode symmetry set up in survey buret's perisporium both sides in addition, the radian of line shell matches survey buret's radian setting, so that the line shell laminating survey buret.

Preferably, the preforming includes the arc strip and along the fixed strip that the arc strip extends to both sides, the screw has been seted up on the fixed strip, set up on the survey buret and match the round hole of screw, the arc of arc strip matches the radial surface arc setting of line shell, the preforming cover is located on the line shell, the bolt passes the screw with the round hole makes the line shell is fixed in survey buret is last.

The utility model provides a solenoid shell is provided with the ring cavity in the line shell, and the line shell has the mosaic structure that can open/seal ring cavity, and the line shell is opened the coil and is placed in the line shell, then line shell closed coil is sealed, compares with prior art, has solved original coil protection and needs artifical winding adhesive tape, the higher problem of cost of labor.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of a line housing mounted on a measurement pipe;

FIG. 2 is a cross-sectional view of the solenoid housing;

FIG. 3 is a schematic view of the construction of the lower housing portion;

FIG. 4 is a schematic structural view of the upper shell portion;

FIG. 5 is a schematic view of the lower housing shaft side;

fig. 6 is a schematic axial view of the upper case.

In the figure: 1. a wire housing; 11. an upper shell; 111. a first annular groove; 112. connecting grooves; 12. a lower case; 121. a second annular groove; 122. a connecting wall; 13. an annular cavity; 14. a lining; 2. tabletting; 3. measuring the tube.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The utility model provides a solenoid shell installs on electromagnetic flowmeter for the protection of coil in electromagnetic flowmeter.

As shown in fig. 1-6, an electromagnetic coil housing comprises a bobbin 1, an annular cavity 13 for accommodating a coil is formed in the bobbin 1, and the coil is wound in the annular cavity 13. The coil is electrified to generate a magnetic field, the magnetic field passes through the inner ring of the annular cavity 13, and the direction of the magnetic field is perpendicular to the coil. The bobbin 1 has a splicing structure, can control the opening and closing of the annular cavity 13, the annular cavity 13 is opened, and the coil is arranged in the annular cavity 13; the annular cavity 13 is closed and the coil is sealed within the annular cavity 13. Furthermore, the inner ring of the annular cavity 13 is positioned in the inner ring of the coil, and the bending shape of the coil is similar to the bending shape of the inner wall of the annular cavity 13, so that the magnetic field generated by the coil can be gathered in the inner ring of the annular cavity 13 more, and the magnetic field intensity is improved.

The bobbin 1 is annular, and the annular cavity 13 penetrates through the bobbin 1 along the circumferential direction of the bobbin 1, so that the coil in the annular cavity 13 can be annularly arranged along the circumferential direction of the annular cavity 13. The line shell 1 is made of high temperature resistant nylon.

The line shell 1 comprises an upper shell 11 and a lower shell 12 matched with the upper shell 11, and the upper shell 11 and the lower shell 12 are spliced to form the line shell 1. First annular groove 111 has been seted up in epitheca 11, and second annular groove 121 has been seted up in inferior valve 12, and first annular groove 111 and second annular groove 121 symmetry set up, and epitheca 11 and inferior valve 12 splice, first annular groove 111 and second annular groove 121 lock have constituted annular cavity 13. Further, the cross-sections of the first annular groove 111 and the second annular groove 121 are both U-shaped,

when the upper shell 11 and the lower shell 12 are spliced into the line shell 1, the bottom surface of the upper shell 11 is attached to the bottom surface of the lower shell 12 to seal the annular cavity 13, as an optional implementation mode, a connecting groove 112 formed along a circle of rotation of the bottom surface of the upper shell 11 is formed in a concave mode, a connecting wall 122 formed along a circle of rotation of the bottom surface of the lower shell 12 in a convex mode is formed on the bottom surface of the lower shell 12, the upper shell 11 and the lower shell 12 are spliced, and the connecting wall 122 is inserted into the connecting groove 112 in a matched mode to seal a coil located in the annular cavity 13.

In order to prolong the service life of the coil, as an optional embodiment, the electromagnetic coil housing further comprises a lining 14, the lining 14 is in a U shape and is arranged at intervals along the circumferential direction of the inner wall of the annular cavity 13, the lining 14 is perpendicular to the inner wall of the annular cavity 13, a U-shaped groove is formed in the lining 14, and the coil is arranged on the U-shaped groove and is spaced from the inner wall of the annular cavity 13. The setting of lining 14 has avoided the coil to rock in line shell 1, cause wearing and tearing, and simultaneously, because line shell 1 is installed on electromagnetic flowmeter, electromagnetic flowmeter's survey buret 3 is the column pipe usually, line shell 1's shape need match survey buret 3 global shape, set firmly in surveying buret 3's the outside, lining 14 that the interval set up in the annular cavity 13 can not produce the hindrance effect of negative direction to line shell 1's bending, and simultaneously, the structural strength of line shell 1 can be strengthened again, play certain effect of making, the coil is difficult for receiving the pressure deformation.

Further, the linings 14 are circumferentially spaced along the inner wall of the first annular groove 111 and the inner wall of the second annular groove 121, and the linings 14 in the first annular groove 111 and the linings 14 in the second annular groove 121 are symmetrically arranged, so that a fixing opening through which the coil passes is defined between the two symmetrical linings 14.

As an alternative embodiment, the electromagnetic flowmeter comprises a measuring tube 3, a pressure plate 2, an electromagnetic coil housing and electrodes, wherein two wire housings 1 are arranged, two wire housings 1 are symmetrically arranged on two outer walls of the measuring tube 3, the wire housings 1 are attached to the measuring tube 3, the radian of the wire housings 1 is matched with the radian of the measuring tube 3, the electrodes are symmetrically arranged on the other two outer walls of the measuring tube 3, the coils in the two wire housings 1 are electrified and matched, a magnetic field is generated in the measuring tube 3, when the conductive fluid passes through the magnetic field, tiny induced electromotive force is generated due to the action force of cutting magnetic lines, and the tiny induced electromotive force is collected by the electrodes.

Further, preforming 2 includes the arc strip and along the fixed strip that the arc strip extends to both sides, has seted up the screw on the fixed strip, sets up the round hole that matches the screw on surveying buret 3, and the arc of arc strip matches the radial face arc setting of line shell 1, and 2 covers of preforming are located on line shell 1, and the bolt passes screw and round hole, make line shell 1 be fixed in on surveying buret 3.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The electromagnetic coil shell is characterized by comprising a coil shell (1), wherein an annular cavity (13) is formed in the coil shell (1), a coil is arranged in the annular cavity (13), the coil is electrified, a magnetic field perpendicular to the coil is generated in an inner ring of the annular cavity (13), the coil shell (1) is provided with a splicing structure for controlling the opening and closing of the annular cavity (13), the annular cavity (13) is opened, the coil is placed in the annular cavity (13), the annular cavity (13) is closed, and the coil is sealed in the annular cavity (13).

2. The electromagnetic coil housing according to claim 1, characterized in that the bobbin (1) comprises an upper housing (11) and a lower housing (12) matched with the upper housing (11), a first annular groove (111) is formed in the upper housing (11), a second annular groove (121) is formed in the lower housing (12), the first annular groove (111) and the second annular groove (121) are symmetrically arranged, the upper housing (11) and the lower housing (12) are spliced, and the first annular groove (111) and the second annular groove (121) form the annular cavity (13) for accommodating the coil.

3. The electromagnetic coil housing as claimed in claim 2, wherein the bottom surface of the upper case (11) is attached to the bottom surface of the lower case (12) to seal the annular cavity (13), the bottom surface of the upper case (11) is provided with a connecting groove (112) recessed along the bottom surface thereof by one rotation, the bottom surface of the lower case (12) is provided with a connecting wall (122) protruding along the bottom surface thereof by one rotation, the upper case (11) and the lower case (12) are spliced, the connecting wall (122) is inserted into the connecting groove (112) in a matching manner, and the annular cavity (13) is sealed.

4. The electromagnetic coil housing according to claim 2, characterized by further comprising a lining (14), wherein the lining (14) is U-shaped, the lining (14) is arranged at intervals along the circumferential direction of the inner wall of the annular cavity (13), the lining (14) is perpendicular to the inner wall of the annular cavity (13), a U-shaped groove is arranged on the lining (14), and the coil is arranged on the U-shaped groove and is arranged at intervals with the inner wall of the annular cavity (13).

5. The electromagnetic coil housing according to claim 4, characterized in that the linings (14) are circumferentially spaced along the inner wall of the first annular groove (111) and the inner wall of the second annular groove (121), respectively, and the linings (14) in the first annular groove (111) and the linings (14) in the second annular groove (121) are symmetrically arranged so that a fixing opening for passing the synthetic coil is defined between the two symmetrically arranged linings (14).

6. The electromagnetic coil housing according to claim 1, characterized in that the bobbin (1) is ring-shaped, and the ring-shaped cavity (13) is disposed in the bobbin (1) along the circumferential direction of the bobbin (1) so that the coil located in the ring-shaped cavity (13) can be wound in a ring shape along the ring-shaped cavity (13).

7. An electromagnetic flowmeter, characterized in that, including surveying buret (3), preforming (2), electrode and claim 1-6 any one solenoid shell, line shell (1) is provided with two, through preforming (2) symmetry is fixed in survey buret (3) perisporium both sides, the electrode symmetry set up in survey buret (3) perisporium both sides in addition, the radian setting of line shell (1) matches survey buret (3), so that line shell (1) laminating survey buret (3).

8. The electromagnetic flowmeter as claimed in claim 7, wherein the pressure plate (2) comprises an arc-shaped strip and fixing strips extending along the arc-shaped strip towards two sides, the fixing strips are provided with screw holes, the measuring tube (3) is provided with round holes matching with the screw holes, the arc of the arc-shaped strip matches with the arc of the radial surface of the line housing (1), the pressure plate (2) is sleeved on the line housing (1), and bolts pass through the screw holes and the round holes to fix the line housing (1) on the measuring tube (3).