CN202171466U - Moving-coil wide angle type electronic gauge head - Google Patents
Moving-coil wide angle type electronic gauge head Download PDFInfo
- Publication number
- CN202171466U CN202171466U CN2011202950956U CN201120295095U CN202171466U CN 202171466 U CN202171466 U CN 202171466U CN 2011202950956 U CN2011202950956 U CN 2011202950956U CN 201120295095 U CN201120295095 U CN 201120295095U CN 202171466 U CN202171466 U CN 202171466U
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- China
- Prior art keywords
- coil
- iron core
- permanent magnet
- needle shaft
- moving
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- Expired - Fee Related
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Abstract
The utility model relates to an execution part of a pointer type gauge, especially a moving-coil wide angle type electronic gauge head, comprising an upper support and a lower support, which are matched to form a hollow framework structure. The lower support is fixedly equipped with a permanent magnet with the two poles vertically arranged; the upper support and the lower support are provided with a needle shaft in the vertical direction; the middle of the needle shaft is fixedly equipped with two discs of hairsprings and a substrate sequentially from top to bottom; the outer end portions of the two discs of hairsprings are fixed on the upper support; the end portion of the substrate is fixedly equipped with a coil; the two stubs of the coil are respectively electrically with the two discs of hairsprings; an annular iron core concentric with the needle shaft is fixedly arranged above a permanent magnet; the coil is sleeved on the iron core; the iron core is provided with a mounting opening for mounting the coil; the bottom of the permanent magnet is fixedly equipped with a magnetism conductive connection plate; one of the magnetism conductive connection plate bends upwards and is contacted with the mounting opening of the iron core; and the mounting opening is filled with an iron plate. According to the gauge head, the defect of insufficient magnetic field intensity of a traditional gauge head is overcome, the deflection angle is big, and the full bias sensitivity is high.
Description
Technical field
The utility model relates to a kind of execution unit of pointer instrument, relates in particular to a kind of moving-coil type wide-angle type electronic instrument gauge outfit.
Background technology
Moving-coil instrument in the laboratory, various fields such as industrial and mining enterprises and vehicle have extremely widely and use.Its ultimate principle is to import coil to electric current with hairspring, lets it in fixed magnetic field, rotate, thereby drives the needle shaft that links to each other with coil, lets the pointer that is installed on the needle shaft deflect, and electric current is big more, and the needle deflection angle is big more.And this electric current comes from various sensors, and is relevant with measured physical quantity, therefore can on special panel, read the size of various physical quantitys (like temperature, the speed of a motor vehicle, rotating speed etc.) according to the deflection angle size of pointer.Moving-coil instrument gauge outfit commonly used now, coil is enclosed within outward on the iron core of an annular, and iron core is positioned at the top of permanent magnet; Thereby make and produce magnetic field comparatively uniformly between iron core and the permanent magnet; Behind the coil electricity, self receive a moment, making it is the center rotation with the needle shaft; This moment be contained in the opposing torque balance that hairspring produced on the needle shaft, thereby produce a deflection angle according to the size of electric current.
In some special fields, automobile rotational speed instrument etc. for example need be used the Dial of instrument of wide-angle type, and promptly the coil anglec of rotation of gauge outfit reaches 270 °, and this just requires the magnetic field intensity between iron core and the permanent magnet enough big.But for coil is packed into iron core, need on iron core, offer a breach, this has weakened the residing magnetic field intensity of coil on the contrary, has reduced the deflection characteristic and the full inclined to one side sensitivity of gauge outfit.
The utility model content
The utility model provides a kind of moving-coil type wide-angle type electronic instrument gauge outfit, has overcome traditional gauge outfit magnetic field intensity defect of insufficient, and deflection angle is big and full highly sensitive partially.In order to realize the foregoing invention purpose, the utility model has adopted following technological means:
A kind of moving-coil type wide-angle type electronic instrument gauge outfit comprises upper bracket and lower carriage, and said upper bracket and lower carriage cooperate the framed structure that forms hollow; The mode that is provided with up and down with the two poles of the earth on the said lower carriage is installed with permanent magnet; Said upper bracket and lower carriage in the vertical direction are provided with needle shaft; The middle part of said needle shaft fixedly mount successively from top to bottom two play the silk and substrate; The outer end of said hairspring is fixed on the upper bracket; The end fixed installation coil of said substrate; Two the end of a thread of said coil respectively with two play the silk be electrically connected; The top of said permanent magnet and the concentric iron core that is set with annular of needle shaft; Said coil is enclosed within on the iron core outward; Have on the said iron core installing port that coil is used is installed; The bottom of said permanent magnet is installed with the magnetic conduction connecting plate; One end of said magnetic conduction connecting plate is bent upwards and contacts with the installing port place of iron core; Filled up iron plate in the said installing port.
Said permanent magnet is a toroidal magnet, and said needle shaft is positioned at the ring heart of permanent magnet;
Be set with terminal block on the said upper bracket, the outer end of said hairspring is welded on the terminal block.
The beneficial effect of the utility model is: the bottom magnetic pole of iron core with magnetic conduction connecting plate and permanent magnet joined; Strengthened the magnetic field intensity between iron core and the permanent magnet upper magnetic pole greatly, in the installing port of iron core, filled up iron plate, the magnetic line of force waste of having avoided the breach because of iron core to cause; Further strengthened magnetic field intensity; Thereby make the needle deflection angle reach easily more than 270 °, satisfied the requirement of wide-angle type gauge outfit, obviously improved the deflection characteristic and the full inclined to one side sensitivity of gauge outfit; Permanent magnet adopts toroidal magnet and is provided with needle shaft is concentric, makes that the magnetic field between iron core and permanent magnet is more even, and the needle shaft rotation is more even; Hairspring is welded on the terminal block, has made things convenient for the connection of gauge outfit and external circuit.
Description of drawings
Fig. 1 is the structural representation of a kind of moving-coil type wide-angle of the utility model type electronic instrument gauge outfit;
Fig. 2 is the structural representation of iron core 7 parts among Fig. 1;
Fig. 3 is the vertical view of iron core 7 parts among Fig. 2.
Embodiment
Below in conjunction with accompanying drawing, the preferred implementation of a kind of moving-coil type wide-angle of the utility model type electronic instrument gauge outfit is made detailed description:
As shown in Figure 1, the main body framework of this moving-coil type wide-angle type electronic instrument gauge outfit is made up of upper bracket 3 and lower carriage 9, the framed structure of " mouth " font of a hollow of upper bracket 3 and lower carriage 9 cooperation formation, and the two is screwed and links together.
Be installed with on the lower carriage 9 annular permanent magnet 8, two magnetic poles of permanent magnet 8 respectively towards about.Be provided with needle shaft 1 in the vertical direction rotation on upper bracket 3 and the lower carriage 9, needle shaft 1 is positioned at the ring heart position of permanent magnet 8.
Be installed with two terminal blocks 2 on the upper bracket 3, in order to connect with external circuit.The part that needle shaft 1 is positioned at the framework that upper bracket 3 and lower carriage 9 be combined into fixedly mounts two play silk 4 and substrates 5 from top to bottom successively, is welded with binding post on the terminal block 2, and binding post stretches out downwards, and two play threads 4 outer ends are welded on respectively on these two binding posts.
As shown in Figures 2 and 3; In order coil 6 to be installed in the ring of iron core 7, must on iron core 7, open an installing port 11, installing port 11 is the breach that radially dissects along annular; Outwards protrude the outer end of installing port 11; Form a termination that is used to install iron core 7, two shaft pertaining symmetries, thus make iron core 7 be horse-hof shape on the whole.Coil 6 packs into after the iron core 7, and the termination with iron core 7 is screwed on lower carriage 9 again, in installing port 11, fills up an iron plate 12 then, and the shape of iron plate 12 and installing port 11 adapt.
Be installed with magnetic conduction connecting plate 10 on the lower surface of permanent magnet 8, an end of magnetic conduction connecting plate 10 is bending upwards, and closely contacts with two terminations and the iron plate 12 of iron core 7.
In the time of this a kind of moving-coil type wide-angle type electronic instrument gauge outfit work; The sensor that the outside is used for measure physical quantities is connected with terminal block 2, and sensor sends current signal according to the size of physical quantity, sends into coil 6 through hairspring 4; There is magnetic field relatively uniformly between permanent magnet 8 and the iron core 7; The coil 6 of energising can receive magnetic field force in this magnetic field, thereby rotates, and then drives needle shaft 1 rotation; Coil 6 is given the turning moment of needle shaft 1 and the opposing torque balance that hairspring 4 produces, thereby produces a deflection angle according to the size of current signal.Closely contact with iron core 7 with the magnetic conduction connecting plate 10 that permanent magnet 8 bottoms join; Thereby make that the magnetic field intensity between iron core 7 and permanent magnet 8 upper surfaces is greatly strengthened, in the installing port 11 of iron core 7, fill up iron plate 12, the magnetic line of force waste of having avoided the breach because of iron core 7 to cause; Further strengthened magnetic field intensity; Thereby make the needle deflection angle reach easily more than 270 °, satisfied the requirement of wide-angle type gauge outfit, obviously improved the deflection characteristic and the full inclined to one side sensitivity of gauge outfit.
Claims (3)
1. a moving-coil type wide-angle type electronic instrument gauge outfit comprises upper bracket (3) and lower carriage (9), and said upper bracket (3) and lower carriage (9) cooperate the framed structure that forms hollow; Said lower carriage (9) is gone up the mode that is provided with up and down with the two poles of the earth and is installed with permanent magnet (8); Said upper bracket (3) and lower carriage (9) in the vertical direction are provided with needle shaft (1); The middle part of said needle shaft (1) fixedly mount successively from top to bottom two play the silk (4) and a substrate (5); The outer end of said hairspring (4) is fixed on the upper bracket (3); The end fixed installation coil (6) of said substrate (5); Two the end of a thread of said coil (6) respectively with two play the silk (4) be electrically connected; The top of said permanent magnet (8) and the concentric iron core (7) that is set with annular of needle shaft (1); Said coil (6) is outer to be enclosed within on the iron core (7); It is characterized in that: have the installing port (11) that coil (6) usefulness is installed on the said iron core (7); The bottom of said permanent magnet (8) is installed with magnetic conduction connecting plate (10); One end of said magnetic conduction connecting plate (10) is bent upwards and locates to contact with the installing port (11) of iron core (7); Filled up iron plate (12) in the said installing port (11).
2. a kind of moving-coil type wide-angle type electronic instrument gauge outfit according to claim 1, it is characterized in that: said permanent magnet (8) is a toroidal magnet, and said needle shaft (1) is positioned at the ring heart of permanent magnet (8).
3. a kind of moving-coil type wide-angle type electronic instrument gauge outfit according to claim 1 and 2, it is characterized in that: be set with terminal block (2) on the said upper bracket (3), the outer end of said hairspring (4) is welded on the terminal block (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202950956U CN202171466U (en) | 2011-08-15 | 2011-08-15 | Moving-coil wide angle type electronic gauge head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202950956U CN202171466U (en) | 2011-08-15 | 2011-08-15 | Moving-coil wide angle type electronic gauge head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202171466U true CN202171466U (en) | 2012-03-21 |
Family
ID=45829661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202950956U Expired - Fee Related CN202171466U (en) | 2011-08-15 | 2011-08-15 | Moving-coil wide angle type electronic gauge head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202171466U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106443690A (en) * | 2016-08-31 | 2017-02-22 | 北京创想智控科技有限公司 | Magnetic suspension optical scanning range finding device and method |
-
2011
- 2011-08-15 CN CN2011202950956U patent/CN202171466U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106443690A (en) * | 2016-08-31 | 2017-02-22 | 北京创想智控科技有限公司 | Magnetic suspension optical scanning range finding device and method |
| CN106443690B (en) * | 2016-08-31 | 2023-11-24 | 北京创想智控科技有限公司 | Magnetic suspension optical scanning distance measuring device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120321 Termination date: 20160815 |