CN203788119U - Pointer driving device - Google Patents
Pointer driving device Download PDFInfo
- Publication number
- CN203788119U CN203788119U CN201420208968.9U CN201420208968U CN203788119U CN 203788119 U CN203788119 U CN 203788119U CN 201420208968 U CN201420208968 U CN 201420208968U CN 203788119 U CN203788119 U CN 203788119U
- Authority
- CN
- China
- Prior art keywords
- coil
- cover plate
- box body
- pointer
- drive unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000004804 winding Methods 0.000 claims abstract description 16
- 238000012946 outsourcing Methods 0.000 claims description 17
- 238000009434 installation Methods 0.000 claims description 11
- 238000005253 cladding Methods 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 210000004513 dentition Anatomy 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000036346 tooth eruption Effects 0.000 description 1
Abstract
The utility model discloses a pointer driving device and relates to instrument device field. The pointer driving device resolves technical problems of easily-generated noise and friction, poor precision, and a short service life of a pointer driving device in the prior art using a stepping motor and a reduction ratio gear train. The pointer driving device comprises a stator and a rotor. The stator comprises a box body, pins connected with the box body, and a coil disposed in the box body. The head of the coil is connected with the pins. The rotor is correspondingly arranged in the coil. The coil comprises a coil skeleton. Wire winding slots used for winding a wire are disposed on the circumference of the coil skeleton at intervals. The box body comprises a top cover plate, a bottom cover plate, and a wrapping pawl ring connected with the top cover plate and the bottom cover plate. The wrapping pawl ring wraps the wire of the coil correspondingly to the wire wining slots. The pointer driving device is applied to an instrument device and especially a driving device for driving a pointer to rotate.
Description
[technical field]
The utility model relates to a kind of metering device, especially a kind of drive unit of pointer meters.
[background technology]
Automobile gauge pointer drives and conventionally adopts micro-step motor, and built-in speed reducing ratio gear train, easily produces noise and friction; In application process, because of dentition inertia and pointer load inertia, motor may be lost step in the time of acceleration and deceleration; Gear clearance can make pointer produce obviously to shake or depart from zero-bit; The accuracy of gear requires high, and pointer is pressed into or extracts damage gear, easily causes micro-step motor to drive pointer clamping stagnation, and severe one has caused scraps.
[summary of the invention]
The utility model provides a kind of pointer drive unit, and without reducing gear train, noise is little, high accuracy.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of pointer drive unit, comprise stator and rotor, described stator comprises box body, is connected to the pin on box body and is arranged on the coil in box body, the end of a thread of coil connects described pin, described rotor correspondence in coil, described coil comprises coil rack, the periphery of described coil rack is along being circumferentially interval with the winding slot for winding the line, described box body comprise upper cover plate, lower cover and be connected to upper cover plate and lower cover between outsourcing dog collar, the corresponding winding slot of outsourcing dog collar is by the conducting wire cladding of coil.
Further, described coil comprises coil and lower coil, described upper coil comprises coil rack, described lower coil comprises lower coil skeleton, described outsourcing dog collar comprises connecting plate between upper coil and lower coil, be arranged on the upper sharp pawl of connecting plate upper surface and be arranged on the lower sharp pawl of connecting plate lower surface, coil rack in upper sharp pawl correspondence, the corresponding lower coil skeleton of lower sharp pawl.
Further, the upper end of described sharp pawl is provided with buckle, and described upper cover plate is provided with the upper draw-in groove that connects described upper buckle, and the lower end of described lower sharp pawl is provided with lower buckle, and described lower cover is provided with the lower bayonet slot that connects described lower buckle.
Further, on described upper cover plate, towards radially extending installation portion, connect described pin on described installation portion, the corresponding installation portion of described lower cover is provided with shade, and described shade hides the part of pin through installation portion.
Further, described rotor comprises rotating shaft, and in described rotating shaft, along being circumferentially extended with boss, described boss is socketed with magnet ring outward.
Further, described magnet ring comprises outer shroud and the brace rod that is arranged on outer shroud inwall, and described brace rod is adjacent to the periphery of boss.
Further, described upper cover plate is provided with projection, and projection is provided with connecting hole, connecting hole described in described rotating shaft cross-under.
The beneficial effects of the utility model:
Pointer drive unit of the present utility model, after stator energising, producing magnetic torque drives rotor to turn an angle, rotor drives pointer to indicate on dial, replace stepping motor and gear train driving by this type of drive, overcome noise, rub, lose step, the deficiency such as pointer is obviously shaken, clamping stagnation, reach little, the high-precision requirement of noise; And by outsourcing dog collar protection coil, simple in structure, reliable, superior performance.
These features of the present utility model and advantage will be below embodiment, accompanying drawing in detailed exposure.
[brief description of the drawings]
Below in conjunction with accompanying drawing, the utility model is described further:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is cutaway view of the present utility model;
Fig. 3 is the structural representation of rotor;
Fig. 4 is the vertical view of rotor.
[embodiment]
The utility model provides a kind of pointer drive unit, comprise stator and rotor, stator comprises box body, is connected to the pin on box body and is arranged on the coil in box body, the end of a thread of coil connects pin, in coil, coil comprises coil rack to rotor correspondence, and the periphery of coil rack is along being circumferentially interval with the winding slot for winding the line, box body comprise upper cover plate, lower cover and be connected to upper cover plate and lower cover between outsourcing dog collar, the corresponding winding slot of outsourcing dog collar is by the conducting wire cladding of coil.Coil adopts outsourcing dog collar coated outward, reliable in structure, and superior performance, increases the service life.
Accompanying drawing below in conjunction with the utility model embodiment is explained and illustrated the technical scheme of the utility model embodiment, but following embodiment is only preferred embodiment of the present utility model, not all.Based on the embodiment in execution mode, those skilled in the art are other embodiment that obtains under the prerequisite of not making creative work, all belongs to protection range of the present utility model.
With reference to figure 1 and Fig. 2, shown in a kind of pointer drive unit, comprise stator and rotor 1, stator comprises box body, is connected to the pin 4 on box body and is arranged on the coil in box body, the end of a thread of coil connects pin 4, and pin 4 is connected with power supply, and rotor correspondence in coil, after coil electricity, produce rotating magnetic field, inhale and repel each other mutually with rotor magnetic pole is regular, rotatablely move thereby drive rotating shaft to do expection, concatenation pointer on rotor, rotor turns an angle, and pointer is accurately instruction on dial.Coil comprises coil rack; the periphery of coil rack is along being circumferentially interval with the winding slot for winding the line; box body comprise upper cover plate 2, lower cover 3 and be connected to upper cover plate and lower cover between outsourcing dog collar 5; the corresponding winding slot of outsourcing dog collar 5 is by the conducting wire cladding of coil; in the corresponding winding slot of outsourcing dog collar 5 is coated on coil; relatively hide whole coil by outer cover; the utility model is by the only winding wire on corresponding coil rack of outsourcing dog collar; when playing good protective effect, save material.
Its coil comprises coil 61 and lower coil 62, upper coil 61 comprises coil rack 611, lower coil 62 comprises lower coil skeleton 621, and outsourcing dog collar 5 comprises connecting plate 51 between upper coil 61 and lower coil 62, be arranged on the upper sharp pawl 52 of connecting plate 51 upper surfaces and be arranged on the lower sharp pawl 54 of connecting plate 51 lower surfaces.Corresponding upper coil rack 611, the corresponding lower coil skeleton 621 that connects of lower sharp pawl 54 of connecting of upper sharp pawl 52.Protect the wire in upper coil and lower coil by same outsourcing dog collar simultaneously; Alternating drive signal is provided to upper coil and lower coil, the simplest method is to use bridge circuit, and electric current is changed by transistor break-make, comes the positive and negative of control signal and break-make situation, thereby produces orderly alternating drive signal.
Be provided with buckle 53 in the upper end of upper sharp pawl 52, upper cover plate 2 is provided with the upper draw-in groove 24 that connects upper buckle 53, and the lower end of lower sharp pawl 54 is provided with lower buckle 55, and lower cover 3 is provided with the lower bayonet slot 32 that connects lower buckle 55.Realize the assembling of outsourcing dog collar, upper cover plate and lower cover by which, easy accessibility, can stablize clamping in box body by upper coil and lower coil, ensures that rotor rotates accurate and steady.
And towards radially extending installation portion 23, connect pin 4 on installation portion 23 on upper cover plate 2, it is corresponding with installation portion 23 that lower cover 3 is provided with shade 31, shade 31 hides the pin stretching in box body.The end of a thread that coil is connected with pin is more fragile, adopts shade to embrace, and effectively protects coil.
With reference to figure 3 and Fig. 4, rotor 1 comprises rotating shaft 11, and rotating shaft 11 upper ends pass upper cover plate 2, is arranged in the rotating shaft 11 of coil along being circumferentially extended with boss 12, the outer magnet ring 13 that is socketed with of boss 12.Traditional rotating shaft presses and is connected with magnet steel, and pointer is extracted and can be caused rotating shaft and magnet steel dislocation, when serious, may extract together with rotating shaft by pointer.The boss that arranges in rotating shaft of the present utility model, center of gravity is more stable, pointer withdrawal process, the bottom surface of boss and upper cover plate offsets, and prevents that rotating shaft is pulled out.
The utility model middle magnetic ring 13 comprises outer shroud 131 and the brace rod 132 that is arranged on outer shroud inwall, and brace rod 132 is adjacent to the periphery of boss 12; Rotating shaft and magnet ring are more easily installed one.
With reference to figure 2, on upper cover plate 1, be provided with projection 21, projection 21 is provided with connecting hole 22, rotating shaft 11 cross-under connecting holes.Boss can prevent that rotating shaft from producing deflection, strengthens stability and accuracy.
By above-described embodiment, the purpose of this utility model is by fully effective having reached.The personage who is familiar with this technology should be understood that the utility model includes but not limited to accompanying drawing and the content of describing in embodiment above.Any amendment that does not depart from function and structure principle of the present utility model all will be included in the scope of claims.
Claims (7)
1. a pointer drive unit, it is characterized in that: comprise stator and rotor, described stator comprises box body, is connected to the pin on box body and is arranged on the coil in box body, the end of a thread of coil connects described pin, described rotor correspondence in coil, described coil comprises coil rack, the periphery of described coil rack is along being circumferentially interval with the winding slot for winding the line, described box body comprise upper cover plate, lower cover and be connected to upper cover plate and lower cover between outsourcing dog collar, the corresponding winding slot of outsourcing dog collar is by the conducting wire cladding of coil.
2. a kind of pointer drive unit according to claim 1, it is characterized in that: described coil comprises coil and lower coil, described upper coil comprises coil rack, described lower coil comprises lower coil skeleton, described outsourcing dog collar comprises connecting plate between upper coil and lower coil, be arranged on the upper sharp pawl of connecting plate upper surface and be arranged on the lower sharp pawl of connecting plate lower surface, coil rack in upper sharp pawl correspondence, the corresponding lower coil skeleton of lower sharp pawl.
3. a kind of pointer drive unit according to claim 2, it is characterized in that: the upper end of described sharp pawl is provided with buckle, described upper cover plate is provided with the upper draw-in groove that connects described upper buckle, the lower end of described lower sharp pawl is provided with lower buckle, and described lower cover is provided with the lower bayonet slot that connects described lower buckle.
4. according to a kind of pointer drive unit described in claim 1 or 2 or 3, it is characterized in that: on described upper cover plate, installation portion radially extends in court, on described installation portion, connect described pin, the corresponding installation portion of described lower cover is provided with shade, and described shade hides the part of pin through installation portion.
5. according to a kind of pointer drive unit described in claim 1 or 2 or 3, it is characterized in that: described rotor comprises rotating shaft, in described rotating shaft, along being circumferentially extended with boss, described boss is socketed with magnet ring outward.
6. a kind of pointer drive unit according to claim 5, is characterized in that: described magnet ring comprises outer shroud and the brace rod that is arranged on outer shroud inwall, and described brace rod is adjacent to the periphery of boss.
7. a kind of pointer drive unit according to claim 5, is characterized in that: described upper cover plate is provided with projection, and projection is provided with connecting hole, connecting hole described in described rotating shaft cross-under.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420208968.9U CN203788119U (en) | 2014-04-25 | 2014-04-25 | Pointer driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420208968.9U CN203788119U (en) | 2014-04-25 | 2014-04-25 | Pointer driving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203788119U true CN203788119U (en) | 2014-08-20 |
Family
ID=51324271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420208968.9U Expired - Lifetime CN203788119U (en) | 2014-04-25 | 2014-04-25 | Pointer driving device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203788119U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103929039A (en) * | 2014-04-25 | 2014-07-16 | 黄山金马股份有限公司 | Pointer driving device |
-
2014
- 2014-04-25 CN CN201420208968.9U patent/CN203788119U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103929039A (en) * | 2014-04-25 | 2014-07-16 | 黄山金马股份有限公司 | Pointer driving device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2009051131A1 (en) | Stator and rotary machine | |
| EP2544335A3 (en) | Rotating electrical machine | |
| CN204008953U (en) | A kind of detection system for motor stator winding | |
| CN203788119U (en) | Pointer driving device | |
| CN204823461U (en) | Wire winding apparatus | |
| CN103390943B (en) | A kind of structure of internal rotor of ferrite steel magnet type motor and assemble method thereof | |
| CN102331531B (en) | Device for detecting phase sequence of motor stator | |
| CN104111084B (en) | Bearing-free cone centring type encoder | |
| CN103929039A (en) | Pointer driving device | |
| CN204741391U (en) | Single -phase DC Brushless motor | |
| CN201829345U (en) | Servo motor computer numerical control coiling machine | |
| CN204696895U (en) | A kind of high-resolution position of rotor of brushless motor induction installation | |
| CN205489969U (en) | Miniature no iron core generator | |
| CN203522449U (en) | Detector fixation seat and motor | |
| CN202798223U (en) | Coil framework of generator rotor | |
| CN203491856U (en) | Mounting structure used for rotary transformer of direct drive motor of electric coach | |
| CN102626857B (en) | Full-automatic twisting machine | |
| CN104155468A (en) | Magnet induction lantern ring used for measuring rate of rotating shaft of mechanical equipment | |
| CN203274767U (en) | Bearing-free cone centering type encoder | |
| CN202771959U (en) | Simple winding device | |
| CN205489846U (en) | Redundancy type of declining does not have iron core generator | |
| CN201994742U (en) | Novel motor rotor | |
| CN203674824U (en) | Rotor yoke for heavy type elevator | |
| CN204330808U (en) | A kind of measurement rotary acceleration sensors | |
| CN204168101U (en) | AMT automobiles has brushless motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |