CN218481534U - Small-size magnetoelectric tachometric transducer - Google Patents
Small-size magnetoelectric tachometric transducer Download PDFInfo
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- CN218481534U CN218481534U CN202222285891.2U CN202222285891U CN218481534U CN 218481534 U CN218481534 U CN 218481534U CN 202222285891 U CN202222285891 U CN 202222285891U CN 218481534 U CN218481534 U CN 218481534U
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Abstract
The utility model provides a small-size magnetoelectric tachometric transducer, including main part and encapsulation casing, the main part by seal installation in the encapsulation casing, the sensor size after the encapsulation is 12mm 21.1mm, and weight is not more than 15 grams to the size is little, and the device is light and handy, and the installation in suitable little space is suitable for the occasion that requires much to the weight to be used. The signal line adopts the cable that has the shielding net to go out the line, and the shielding net can play the interference killing feature, and the occasion that suitable anti-interference required height is used, for example can deal with the high requirement of the novel aviation equipment of day-new-month-different.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to a sensor structure, specifically speaking are magnetoelectric tachometric transducer structure.
[ background of the invention ]
Most of magnetoelectric revolution speed sensor used at present all comprises magnet, magnetic pole, skeleton, coil, shell, connector etc. and the structure is more complicated, and the accessory is various, and whole volume weight is bigger usually, and present more and more aviation equipment pursues miniaturization, lightweight, and the operation requirement of novel aviation equipment has been can't be satisfied to traditional sensor size, consequently just needs small-size, small, light in weight's sensor to deal with the novel aviation equipment of change day and month.
[ Utility model ] A method for manufacturing a semiconductor device
In view of this, the to-be-solved technical problem of the utility model lies in providing a small-size magnetoelectric tachometric transducer, and the device is light and handy, and the installation of suitable little space is suitable for using with low costs to weight, the occasion that the anti-interference requirement is high.
In order to achieve the above novel purpose, the embodiment of the present invention adopts the following technical solutions: a small-size magnetoelectric revolution speed transducer comprises a main body and a packaging shell, wherein the main body is hermetically arranged in the packaging shell, the size of the packaged transducer is DxL, D is the maximum diameter of the transducer, L is the length of the transducer, D is less than or equal to 12mm, L is less than or equal to 21.1mm, and the weight is less than or equal to 15 g;
the main body includes:
the winding framework comprises a magnetic rod and a blocking plate, wherein the magnetic rod is provided with a rod part and an end plate, the end plate is connected to the inner end part of the rod part, and the blocking plate is fixed to the outer end part of the rod part;
the magnet is fixed on the outer end face of the end plate of the magnetic rod and used for providing a stable magnetic field for the sensor;
the first insulating sheet is arranged at the inner end part of the blocking plate;
the second insulation sheet is arranged at the inner end part of the end plate;
a coil wound on the magnetic rod with a predetermined number of turns by an enameled wire and located between the first and second insulating sheets;
one end of the signal wire is arranged on the outermost ring of the coil and is welded with the enameled wire, and the other end of the signal wire extends to the outside of the packaging shell;
the aramid fiber wire is used for fixing the signal wire on the coil in a winding and binding manner;
the package housing includes:
the mounting seat is coated on the periphery of the coil and is connected with the blocking plate;
the shell is coated on the periphery of the magnet and is in butt joint with the mounting seat;
and the rear cover is positioned at the outer end of the magnet and is connected with the shell.
Further, the embodiment of the utility model provides a still including sealed glue, fill in the main part with in the preformed gap between the encapsulation casing.
Furthermore, an external thread is arranged at one outer end of the mounting seat, and a mounting nut is screwed on the external thread.
Furthermore, a wire outlet is reserved at the connecting position between the mounting seat and the shell, and a cable used for extending the signal wire to the outside of the packaging shell is sleeved on the wire outlet.
Furthermore, the cable is provided with a shielding net, the shielding net is pressed on the cable through a cable fixing ring, the shielding net is provided with an extension section, and the extension section is fixed at the wire outlet through a cable fixing ring after being folded back and is in contact with the mounting seat and the shell.
The utility model has the advantages that: the utility model discloses a magnetoelectric tachometric transducer encapsulates the back size and is D L =12mm x 21.1mm, and weight is not more than 15 grams to the size is little, and the device is light and handy, and the installation in suitable little space is suitable for the occasion use that requires high to the weight. The signal line adopts the cable that has the shielding net to go out the line, and the shielding net can play the interference killing feature, and the occasion that suitable anti-interference required height is used, for example can deal with the high requirement of the novel aviation equipment of day-new-month-different.
[ description of the drawings ]
The present invention will be further described with reference to the following examples and drawings.
Fig. 1 is the overall three-dimensional structure schematic diagram of the small-sized magnetoelectric tachometric transducer after being packaged.
Fig. 2 is a schematic structural diagram of the main body of the small-sized magnetoelectric tachometric transducer of the present invention.
Fig. 3 is the whole axial sectional structure schematic diagram of the small-size magnetoelectric revolution speed sensor of the utility model.
Fig. 4 is a schematic structural diagram of the small-sized magnetoelectric tachometric transducer package housing of the present invention.
Fig. 5 is a schematic diagram of the overall size of the small-sized magnetoelectric tachometric transducer of the present invention.
[ detailed description ] embodiments
The embodiment of the utility model provides a through providing a small-size magnetoelectric tachometric transducer, the device is light and handy, and the installation in suitable little space is suitable to be used with low costs to weight, the occasion that the anti-interference requirement is high.
For better understanding of the above technical solutions, the following detailed descriptions will be provided in conjunction with the drawings and the detailed description of the embodiments.
Referring to fig. 1 to 5, a small-sized magnetoelectric tachometric transducer 100 of the present invention includes a main body 1 and a package casing 2, the main body 1 is hermetically mounted in the package casing 2, the size of the packaged sensor 100 is D × L, D is the maximum diameter of the sensor, L is the length of the sensor, D is not more than 12mm, L is not more than 21.1mm, and the weight is not more than 15 g;
the main body 1 includes:
the bobbin 11 comprises a magnetic rod 111 and a blocking plate 112, the magnetic rod 111 has a rod portion 1111 and an end plate 1112, the end plate 1112 is connected to the inner end of the rod portion 1111, and the blocking plate 112 is fixed to the outer end of the rod portion 1111 by welding;
a first insulating sheet 13 provided at an inner end portion of the blocking plate 112;
a second insulating sheet 14 provided at an inner end portion of the end plate 1112;
a coil 12 wound around the magnetic rod 111 with a predetermined number of turns by an enameled wire and located between the first insulating sheet 13 and the second insulating sheet 14;
a coil 12 formed by closely winding an enameled wire around the magnetic rod 111 by a predetermined number of turns;
a first insulating sheet 13 provided between an outer end of the coil 12 and the blocking plate 112 for insulating the coil 12;
a second insulating sheet 14 provided between an inner end portion of the coil 12 and the end plate 1112, for insulating the coil 12;
a magnet 15 fixed on the outer end face of the end plate 1112 of the magnetic rod 111 for providing a stable magnetic field for the sensor, wherein the fixing mode can be bonding;
a signal wire 16, one end of which is arranged on the outermost ring of the coil 12 and is welded with the enameled wire, and the other end of which extends to the outside of the packaging shell 2;
an aramid fiber wire 17 for fixing the signal wire 16 to the coil 12 by winding and binding;
the package housing 2 plays a role of protecting the internal devices of the sensor, and includes:
the mounting seat 21 is coated on the periphery of the coil 12 and connected with the blocking plate 112, and the connection can be welding;
the shell 22 is coated on the periphery of the magnet 15 and is butted with the mounting seat 21, and the connection can be welding;
and a rear cover 23 located at an outer end of the magnet 15 and connected to the housing 22, which may be welded.
Further, the embodiment of the utility model provides a still including sealed glue 3, fill in main part 1 with in the preformed gap between the encapsulation casing 2, play the guard action to main part 1 of sensor.
An outer thread is arranged at one outer end of the mounting base 21, a mounting nut 24 is connected to the outer thread in a threaded mode, and the mounting nut 24 is provided with a mounting hole 241, so that a sensor can be conveniently fused and fixed.
An outlet 25 is reserved at the connection between the mounting seat 21 and the outer shell 22, the outlet 25 is formed by butt-jointing two semicircles, and a cable 26 for extending the signal line 16 to the outside of the package housing 2 is sleeved on the outlet.
The cable 26 is a cable with a shielding net, the shielding net is positioned in the cable 26 and is provided with an extension section 27, the extension section 27 is folded back and then is fixed at the outlet 25 by a cable fixing ring 28, and contacts with the mounting seat 21 and the shell 22 to form electric continuity, so that a good shielding effect is achieved, an anti-interference effect is achieved, and the cable is suitable for being used in occasions with high anti-interference requirements.
The utility model discloses a magnetoelectric tachometric transducer adopts the principle of variable reluctance type sensor, and the magnetic resistance that air gap size change arouses between the height tooth on the phonic wheel and the sensor when this kind of sensor is surveyed the phonic wheel rotation through the response changes, and the magnetic flux of magnetic circuit changes among the reaction sensor, and according to the electromagnetic induction law, the magnetic flux change will generate induced electromotive force at sensor inner coil, and its cycle is proportional with surveyed target rotation cycle, can measure the rotational speed according to the frequency of the electromotive force of gathering.
The utility model has the advantages of: the utility model discloses a magnetoelectric tachometric transducer encapsulates the back size and is D L =12mm x 21.1mm, and weight is not more than 15 grams to the size is little, and the device is light and handy, and the installation in suitable little space is suitable for the occasion use that requires high to the weight. The signal line adopts the cable that has the shielding net to go out the line, and the shielding net can play anti-interference effect, and suitable countermeasure interference requires high occasion to use, can deal with the high requirement of the novel aviation equipment of day new and month difference for example.
Although specific embodiments of the present invention have been described, it will be understood by those skilled in the art that the specific embodiments described are illustrative only and are not limiting upon the scope of the invention, and that equivalent modifications and variations can be made by those skilled in the art without departing from the spirit of the invention, which is to be limited only by the claims appended hereto.
Claims (5)
1. The utility model provides a small-size magnetoelectric tachometric transducer which characterized in that: the sensor comprises a main body and a packaging shell, wherein the main body is hermetically arranged in the packaging shell, the size of the packaged sensor is D multiplied by L, D is the maximum diameter of the sensor, L is the length of the sensor, D is less than or equal to 12mm, L is less than or equal to 21.1mm, and the weight of the sensor is not more than 15 g;
the main body includes:
the winding framework comprises a magnetic rod and a blocking plate, wherein the magnetic rod is provided with a rod part and an end plate, the end plate is connected to the inner end part of the rod part, and the blocking plate is fixed to the outer end part of the rod part;
the magnet is fixed on the outer end face of the end plate of the magnetic rod and used for providing a stable magnetic field for the sensor;
the first insulating sheet is arranged at the inner end part of the blocking plate;
the second insulation sheet is arranged at the inner end part of the end plate;
a coil wound on the magnetic rod with a predetermined number of turns by an enameled wire and located between the first and second insulating sheets;
one end of the signal wire is arranged on the outermost ring of the coil and is welded with the enameled wire, and the other end of the signal wire extends to the outside of the packaging shell;
the aramid fiber wire is used for fixing the signal wire on the coil in a winding and binding manner;
the package housing includes:
the mounting seat is coated on the periphery of the coil and is connected with the blocking plate;
the shell is coated on the periphery of the magnet and is in butt joint with the mounting seat;
and the rear cover is positioned at the outer end of the magnet and is connected with the shell.
2. A small-sized magnetoelectric revolution speed sensor according to claim 1, wherein: the packaging structure further comprises a sealant filled in a reserved gap between the main body and the packaging shell.
3. A small-sized magnetoelectric revolution speed sensor according to claim 1, wherein: an external thread is arranged at the outer end of the mounting seat, and a mounting nut is connected to the external thread in a threaded mode.
4. A small-sized magnetoelectric revolution speed sensor according to claim 1, wherein: and a wire outlet is reserved at the joint between the mounting seat and the shell, and a cable for extending the signal wire to the outside of the packaging shell is sleeved on the wire outlet.
5. A small-scale magnetoelectric tachometric transducer according to claim 4 in which: the cable is the cable that has the shielding net, the shielding net has an extension section, be fixed in with a cable fixing ring after the extension section inflection the mouth department, and with the mount pad with the shell contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222285891.2U CN218481534U (en) | 2022-08-30 | 2022-08-30 | Small-size magnetoelectric tachometric transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222285891.2U CN218481534U (en) | 2022-08-30 | 2022-08-30 | Small-size magnetoelectric tachometric transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218481534U true CN218481534U (en) | 2023-02-14 |
Family
ID=85166065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222285891.2U Active CN218481534U (en) | 2022-08-30 | 2022-08-30 | Small-size magnetoelectric tachometric transducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218481534U (en) |
-
2022
- 2022-08-30 CN CN202222285891.2U patent/CN218481534U/en active Active
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