CN204794624U - One -piece type wheelchair motors - Google Patents
One -piece type wheelchair motors Download PDFInfo
- Publication number
- CN204794624U CN204794624U CN201520443435.3U CN201520443435U CN204794624U CN 204794624 U CN204794624 U CN 204794624U CN 201520443435 U CN201520443435 U CN 201520443435U CN 204794624 U CN204794624 U CN 204794624U
- Authority
- CN
- China
- Prior art keywords
- carbon brush
- end cap
- motor
- area
- piece type
- 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.)
- Active
Links
Landscapes
- Motor Or Generator Frames (AREA)
Abstract
The utility model discloses an one -piece type wheelchair motors, including motor casing, the inside extension of motor casing's inner wall is formed with the support frame, still includes carbon brush end cover and speed reduction end cover, and motor stator is installed to the first region intra -area, rotates the cover in the motor shaft one end and is equipped with electric motor rotor, and the last cover of electric motor rotor is equipped with the commutator, and it has a plurality of carbon brush holes to open on the anchor ring of carbon brush end cover, and the downthehole carbon brush that acts on the commutator of installing of carbon brush is provided with the stationary magazine creel between two adjacent carbon brush holes, install filter element in the stationary magazine creel, install gear reducer on the support frame, motor shaft's the other end passes the support frame and meshes mutually with gear reducer, and gear reducer is connected with the transmission shaft that passes the speed reduction end cover. The utility model discloses an integrated into one piece's motor casing, and embed the support frame that has with motor casing an organic whole, so, can satisfy and change than the demand of transmission structure to the casing greatly, play the efficiency of preventing torsion.
Description
Technical field
The utility model relates to wheelchair accessory field, especially relates to one-piece type wheel chair motor.
Background technology
Driving arrangement in electric wheelchair is for its scope of application, be divided into brush motor and brushless electric machine, whether the difference of brush motor and brushless electric machine is configured with conventional brush-commutator, have the commutation of brushless motor always by electrographite brush be arranged on epitrochanterian annular commutator and contact and realize, brushless electric machine then feeds back to control circuit by Hall element rotor-position, can know the correct time that motor phase commutates.The motor that most of brushless electric machine manufacturer produces all has three Hall effect alignment sensors, because brushless electric machine does not have brush, therefore does not also have relevant interface, and therefore cleaner, noise is less, in fact Maintenance free, and the life-span is longer.
But European Union's high standard requires to use brush motor, because brushless electric machine will produce one section and compose electromagnetic signal by force, the normal operation of medicine equipment can be affected like this, such as cardiac pacemaker, CT nulcear magnetic resonance (NMR), these all need to ask and will use in electromagnetic space environment relatively.Therefore, for the wheelchair user that may enter in these regions, brush motor is set in wheelchair and then seems and be necessary very much.But in brush motor running, when brush and the indirect contact of commutator are from an end bay to the moment of another side, the electric current in commutator is reverse, adds coil and there is self inductance, very easily produce certain spark electromagnetic interference between brush and commutator.
In addition, usually be provided with large turning in wheel chair motor and compare drive mechanism, existing mounting structure is fixed with the housing screw being provided with ratio wheel by the housing being provided with motor, like this, when wheel chair motor runs, this kind of point-like is fixed not only to be existed displacement and slip and produces larger noise, simultaneously, the mutual slip of two housings very easily changes the fit structure between motor and ratio wheel, thus affects the normal work of wheel chair motor.
Utility model content
The purpose of this utility model overcomes the deficiencies in the prior art, provides one-piece type wheel chair motor, adopts integrated electric machine casing, and be built-in with the bracing frame with electric machine casing one, so, large turning than the demand of drive mechanism to housing can be met, play effect of anti-torsion.Meanwhile, the setting of carbon brush and filter element, can reduce the probability that brush motor commutator produces electric spark, reduce the loss of brush motor inner part.
The purpose of this utility model is achieved through the following technical solutions:
One-piece type wheel chair motor, comprise the electric machine casing of the equal opening in two ends, the inwall of electric machine casing extends internally and is formed with bracing frame, electric machine casing inside division is become first area and second area by bracing frame, also comprise the carbon brush end cap for closed first area and the deceleration end cap for closed second area, be provided with the motor stator being connected with machine shaft in first area, machine shaft makes the two ends of machine shaft lay respectively at the both sides of motor stator through motor stator, on machine shaft one end, turning set is provided with the rotor being positioned at carbon brush end cap, rotor is arranged with commutator, the anchor ring of carbon brush end cap has multiple carbon brush hole, the carbon brush acting on commutator is installed in carbon brush hole, stationary magazine creel that is curved and that be communicated with carbon brush hole is provided with between two adjacent carbon brush holes, the filter element be electrically connected with carbon brush is installed in stationary magazine creel, the outer wall of stationary magazine creel is provided with multiple fin along its circumferencial direction, cave in along the direction radially of carbon brush end cap in the middle part of fin, and the two ends of fin form extension A and extension B respectively, the height of the summit distance stationary magazine creel outer wall of described extension A is less than the height of summit apart from stationary magazine creel outer wall of extension B, bracing frame is provided with the ratio wheel being positioned at second area, the other end of machine shaft is meshed with ratio wheel through bracing frame, and ratio wheel is connected with the power transmission shaft through deceleration end cap.
In the utility model, motor stator and ratio wheel are all positioned at integrated electric machine casing, electric machine casing so can be avoided to deform when motor runs and affect the fit structure of its inside; Wherein, the setting of built-in bracing frame, the setting that can be ratio wheel and machine shaft provides support, and avoids it vibrations by a relatively large margin occur in second area and affects the operation of wheel chair motor.The setting of power transmission shaft is used for sheathed large driving wheel.After energising, motor stator magnetic field and rotor Interaction Law of Electric Current produce electromagnetic torque, the rotor that motor stator rotating magnetic field just has current carrying conductor in tow rotates, thus drive motor rotating shaft rotates, drive large driving wheel to rotate by ratio wheel and power transmission shaft again, thus promotion wheelchair move ahead or retreat.In this running; directly contact with the commutator segment of commutator when starting the carbon brush being positioned at carbon brush hole; now be fixed on the filter element then direct electromagnetic interference elimination that will produce between two adjacent carbon brush holes; and then reduce the number of times of motor field loss protection action chaser; ensure the normal operation of motor; reach and reduce the probability that brush motor commutator produces electric spark, reduce the object of the loss of brush motor inner part.After motor uses for a long time, electric machine casing internal operation assembly can produce a large amount of heats, and the ambient temperature in electric machine casing constantly raises with the accumulation of heat, directly have influence on the job stability of filter element, for temperature, filter element is affected, the utility model has stationary magazine creel in the outer setting of filter element, and on the outer wall of stationary magazine creel, multiple fin is installed, the medial recess of fin, and its two ends form extension A and extension B to outer expansion, fin is made to form bottom thick, the structure of top thin, the stress reduced when processing and manufacturing is concentrated, between extension A and extension B, there is certain difference in height simultaneously, the heat around filter element is made to be that level transmission is opened, the situation generation that thermal stress around reduction filter element is concentrated and impaired, finally realize the job stability of brush motor.
For realizing carbon brush end cap closing first area, deceleration end cap closing second area, further, described carbon brush end cap is all connected by trip bolt and described electric machine casing mutually with deceleration end cap.
For raising electric machine casing and bracing frame are to the stability of its interior structural support effect, further, cavity shape and the described motor stator of described first area adapt, and cavity shape and the described ratio wheel of described second area adapt.Setting like this, can avoid motor stator and ratio wheel vibrations by a relatively large margin occur in electric machine casing and affects the operation of wheel chair motor.
For strengthening filter element to the filtration of spark electromagnetism, further, the root of the two ends of filter element described carbon brush adjacent with two is respectively connected.Filter element is electrically connected on the root of carbon brush, is also namely connected to the contact point place of infinite approach carbon brush and commutator.Because the spark electromagnetism of carbon brush and commutator contact position is maximum, filter element is connected to the root of carbon brush, can filters this spark electromagnetism rapidly, so reach quick jamproof object.
For realizing the filter action of filter element to spark electromagnetic interference, further, described filter element is EMC filter.EMC filter has another name called Electro Magnetic Compatibility filter, the strong electromagnetic produced when can suppress and eliminate motor rotation and start and stop and electric spark impact, and then realize the electric wheelchair in use reduction of failure rate and the prolongation in its useful life, increase the scope of application of electric wheelchair simultaneously, reduce the limited field of user.
Further, the arc length of described fin is 3/4ths of described stationary magazine creel excircle.Heat in electric machine casing is mainly concentrated from coil, and the heat that coil produces can directly be radiated on carbon brush end cap, for optimizing carbon brush end cap inner structure layout and reducing the difficulty of processing of each parts in carbon brush end cap, the arc length of fin is set to 3/4ths of stationary magazine creel excircle by the utility model, and this section of arc length is just to the commutator segment of commutator, remaining four/a part of stationary magazine creel outer wall then contact internal walls that is direct and carbon brush end cap is fixed, and finally realizes filter element quick heat radiating.
Further, described carbon brush hole is provided with 4, and is uniformly distributed on the anchor ring of described carbon brush end cap.In the utility model, correspondingly, carbon brush is provided with 4, and filter element also should have 4.Setting like this, on the one hand, can strengthen the absorption of carbon brush to strong spectrum electromagnetic signal, the strong electromagnetic produced when suppressing and eliminate motor rotation and start and stop; On the other hand, also can strengthen the absorption of filter element to spark electromagnetic interference, realize the electric wheelchair in use reduction of failure rate and the prolongation in its useful life.
Compared with prior art, the utility model has following beneficial effect:
1, in the utility model, motor stator and ratio wheel are all positioned at integrated electric machine casing, electric machine casing so can be avoided to deform when motor runs and affect the fit structure of its inside; Wherein, the setting of built-in bracing frame, the setting that can be ratio wheel and machine shaft provides support, and avoids it vibrations by a relatively large margin occur in second area and affects the operation of wheel chair motor.So, large turning than the demand of drive mechanism to housing can be met, play effect of anti-torsion.
2, when the utility model uses; the carbon brush being positioned at carbon brush hole directly contacts with the commutator segment of commutator; now be fixed on the filter element then direct electromagnetic interference elimination that will produce between two adjacent carbon brush holes; and then reduce the number of times of motor field loss protection action chaser; ensure the normal operation of motor; reach and reduce the probability that brush motor commutator produces electric spark, reduce the object of the loss of brush motor inner part.
3, the setting of EMC filter, the strong electromagnetic produced when can suppress and eliminate motor rotation and start and stop and electric spark impact, and then realize the electric wheelchair in use reduction of failure rate and the prolongation in its useful life, increase the scope of application of electric wheelchair simultaneously, reduce the limited field of user.
4, the arc length of fin is set to 3/4ths of stationary magazine creel excircle by the utility model, and this section of arc length is just to the commutator segment of commutator, remaining four/a part of stationary magazine creel outer wall then contact internal walls that is direct and carbon brush end cap is fixed, and finally realizes filter element quick heat radiating.
Accompanying drawing explanation
Fig. 1 is the structural representation of an one-piece type wheel chair motor described in the utility model specific embodiment;
Fig. 2 is the structural representation of a ratio wheel specific embodiment in one-piece type wheel chair motor described in the utility model;
Fig. 3 is the structural representation of motor stator and a rotor specific embodiment in one-piece type wheel chair motor described in the utility model;
Fig. 4 is the structural representation of an electric machine casing specific embodiment in one-piece type wheel chair motor described in the utility model;
Fig. 5 is the cutaway view of an electric machine casing specific embodiment in one-piece type wheel chair motor described in the utility model;
Fig. 6 is the structural representation of a carbon brush end cap specific embodiment in one-piece type wheel chair motor described in the utility model;
Fig. 7 is the partial structurtes schematic diagram of a stationary magazine creel specific embodiment in one-piece type wheel chair motor described in the utility model;
Fig. 8 is the partial structurtes schematic diagram of a fin specific embodiment in one-piece type wheel chair motor described in the utility model.
Name in accompanying drawing corresponding to Reference numeral is called: 1, electric machine casing, 11, bracing frame, 12, first area, 13, second area, 14, ratio wheel, 15, power transmission shaft, 2, motor stator, 3, rotor, 31, commutator, 4, carbon brush end cap, 41, carbon brush hole, 5, carbon brush, 6, stationary magazine creel, 7, filter element, 8, fin, 81, extension A, 82, extension B, 9, machine shaft, 10, deceleration end cap.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but execution mode of the present utility model is not limited thereto.
Embodiment 1
As shown in Figures 1 to 8, one-piece type wheel chair motor, comprise the electric machine casing 1 of the equal opening in two ends, the inwall of electric machine casing 1 extends internally and is formed with bracing frame 11, electric machine casing 1 inside division is become first area 12 and second area 13 by bracing frame 11, also comprise for the carbon brush end cap 4 of closed first area 12 and the deceleration end cap 10 for closed second area 13, be provided with the motor stator 2 being connected with machine shaft 9 in first area 12, machine shaft 9 makes the two ends of machine shaft 9 lay respectively at the both sides of motor stator 2 through motor stator 2, machine shaft 9 one end is arranged with the rotor 3 being positioned at carbon brush end cap 4, rotor 3 is arranged with commutator 31, carbon brush end cap 4 anchor ring has multiple carbon brush hole 41, the carbon brush 5 acting on commutator 31 is installed in carbon brush hole 41, stationary magazine creel 6 that is curved and that be communicated with carbon brush hole 41 is provided with between two adjacent carbon brush holes 41, the filter element 7 be electrically connected with carbon brush 5 is installed in stationary magazine creel 6, the outer wall of stationary magazine creel 6 is provided with multiple fin 8 along its circumferencial direction, cave in along the direction radially of carbon brush end cap 4 in the middle part of fin 8, and the two ends of fin 8 form extension A81 and extension B82 respectively, the height of summit distance stationary magazine creel 6 outer wall of described extension A81 is less than the height of summit apart from stationary magazine creel 6 outer wall of extension B82, bracing frame 11 is provided with the ratio wheel 14 being positioned at second area 13, the other end of machine shaft 9 is meshed with ratio wheel 14 through bracing frame 11, and ratio wheel 14 is connected with the power transmission shaft 15 through deceleration end cap.
In the present embodiment, motor stator 2 and ratio wheel 14 are all positioned at integrated electric machine casing 1, electric machine casing 1 so can be avoided to deform when motor runs and affect the fit structure of its inside; Wherein, the setting of built-in bracing frame 11, the setting that can be ratio wheel 14 and machine shaft 9 provides support, and avoids it in second area 13, vibrations by a relatively large margin occur and affect the operation of wheel chair motor.The setting of power transmission shaft 15 is used for sheathed large driving wheel.In this running; the carbon brush 5 being positioned at carbon brush hole 41 directly contacts with the commutator segment of commutator 31; the electromagnetic interference produced then directly is eliminated by the filter element 7 be now fixed between two adjacent carbon brush holes 41; and then reduce the number of times of motor field loss protection action chaser; ensure the normal operation of motor; reach and reduce the probability that brush motor commutator produces electric spark, reduce the object of the loss of brush motor inner part.After motor uses for a long time, electric machine casing 1 internal operation assembly can produce a large amount of heats, and the ambient temperature in electric machine casing 1 constantly raises with the accumulation of heat, directly have influence on the job stability of filter element 7, for temperature, filter element 7 is affected, the present embodiment has stationary magazine creel 6 in the outer setting of filter element 7, and multiple fin 8 is installed on the outer wall of stationary magazine creel 6, the medial recess of fin 8, and its two ends form extension A81 and extension B82 to outer expansion, fin 8 is made to form bottom thick, the structure of top thin, so, the stress that can reduce when processing and manufacturing is concentrated, between extension A81 and extension B82, there is certain difference in height simultaneously, the heat around filter element 7 is made to be that level transmission is opened, the situation generation that thermal stress around reduction filter element 7 is concentrated and impaired, finally realize the job stability of brush motor.
For realizing closing of carbon brush end cap 4 pairs of first areas 12, closing of deceleration end cap 10 pairs of second areas 13, preferably, described carbon brush end cap 4 and deceleration end cap 10 are all connected mutually by trip bolt and described electric machine casing 1.
For raising electric machine casing 1 and bracing frame 11 are to the stability of its interior structural support effect, further, cavity shape and the described motor stator 2 of described first area 12 adapt, and cavity shape and the described ratio wheel 14 of described second area 13 adapt.Setting like this, can avoid motor stator 2 and ratio wheel 14 in electric machine casing 1, vibrations by a relatively large margin occur and affect the operation of wheel chair motor.
Preferably, the root of the two ends of filter element 7 described carbon brush 5 adjacent with two is respectively connected.Filter element 7 is electrically connected on the root of carbon brush 5, is also namely connected to the contact point place of infinite approach carbon brush 5 and commutator 31.Because carbon brush 5 is maximum with the spark electromagnetism of commutator 31 contact position, filter element 7 is connected to the root of carbon brush 5, can filters this spark electromagnetism rapidly, so reach quick jamproof object.
As preferably, EMC filter has another name called Electro Magnetic Compatibility filter, the strong electromagnetic produced when can suppress and eliminate motor rotation and start and stop and electric spark impact, and then realize the electric wheelchair in use reduction of failure rate and the prolongation in its useful life, increase the scope of application of electric wheelchair simultaneously, reduce the limited field of user.
Heat in electric machine casing 1 is mainly concentrated from coil, and the heat that coil produces can directly be radiated on carbon brush end cap 4, for optimizing carbon brush end cap 4 inner structure layout and reducing the difficulty of processing of each parts in carbon brush end cap 4, the arc length of fin 8 is set to 3/4ths of stationary magazine creel 6 excircle by the present embodiment, and this section of arc length is just to the commutator segment of commutator 31, remaining four/a part of stationary magazine creel 6 outer wall then contact internal walls that is direct and carbon brush end cap 4 is fixed, and finally realizes filter element 7 quick heat radiating.
Described carbon brush hole 41 is provided with 4, and is uniformly distributed on the anchor ring of described carbon brush end cap 4.In the present embodiment, correspondingly, carbon brush 5 is provided with 4, and filter element 7 also should have 4.Setting like this, on the one hand, can strengthen the absorption of carbon brush 5 to strong spectrum electromagnetic signal, the strong electromagnetic produced when suppressing and eliminate motor rotation and start and stop; On the other hand, also can strengthen the absorption of filter element 7 pairs of spark electromagnetic interference, realize the electric wheelchair in use reduction of failure rate and the prolongation in its useful life.
Above content is the further description done the utility model in conjunction with concrete preferred implementation, can not assert that embodiment of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, not departing from other execution modes drawn under the technical solution of the utility model, all should be included in protection range of the present utility model.
Claims (7)
1. one-piece type wheel chair motor, it is characterized in that: the electric machine casing (1) comprising the equal opening in two ends, the inwall of electric machine casing (1) extends internally and is formed with bracing frame (11), electric machine casing (1) inside division is become first area (12) and second area (13) by bracing frame (11), also comprise the carbon brush end cap (4) for closed first area (12) and the deceleration end cap (10) for closed second area (13), the motor stator (2) being connected with machine shaft (9) is installed in first area (12), machine shaft (9) makes the two ends of machine shaft (9) lay respectively at the both sides of motor stator (2) through motor stator (2), machine shaft (9) one end is arranged with the rotor (3) being positioned at carbon brush end cap (4), rotor (3) is arranged with commutator (31), the anchor ring of carbon brush end cap (4) has multiple carbon brush hole (41), the carbon brush (5) acting on commutator (31) is installed in carbon brush hole (41), stationary magazine creel (6) that is curved and that be communicated with carbon brush hole (41) is provided with between two adjacent carbon brush holes (41), the filter element (7) be electrically connected with carbon brush (5) is installed in stationary magazine creel (6), the outer wall of stationary magazine creel (6) is provided with multiple fin (8) along its circumferencial direction, cave in along the direction radially of carbon brush end cap (4) in fin (8) middle part, and the two ends of fin (8) form extension A (81) and extension B (82) respectively, the height of summit distance stationary magazine creel (6) outer wall of described extension A (81) is less than the height of summit apart from stationary magazine creel (6) outer wall of extension B (82), bracing frame (11) is provided with the ratio wheel (14) being positioned at second area (13), the other end of machine shaft (9) is meshed with ratio wheel (14) through bracing frame (11), and ratio wheel (14) is connected with the power transmission shaft (15) through deceleration end cap.
2. one-piece type wheel chair motor according to claim 1, is characterized in that: described carbon brush end cap (4) is all connected by trip bolt and described electric machine casing (1) mutually with deceleration end cap (10).
3. one-piece type wheel chair motor according to claim 1, it is characterized in that: cavity shape and the described motor stator (2) of described first area (12) adapt, cavity shape and the described ratio wheel (14) of described second area (13) adapt.
4. one-piece type wheel chair motor according to claim 1, is characterized in that: the root of the two ends of described filter element (7) described carbon brush (5) adjacent with two is respectively connected.
5. one-piece type wheel chair motor according to claim 1, is characterized in that: described filter element (7) is EMC filter.
6. one-piece type wheel chair motor according to claim 1, is characterized in that: the arc length of described fin (8) is 3/4ths of described stationary magazine creel (6) excircle.
7. according to the one-piece type wheel chair motor in claim 1 ~ 6 described in any one, it is characterized in that: described carbon brush hole (41) is provided with 4, and be uniformly distributed on the anchor ring of described carbon brush end cap (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520443435.3U CN204794624U (en) | 2015-06-25 | 2015-06-25 | One -piece type wheelchair motors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520443435.3U CN204794624U (en) | 2015-06-25 | 2015-06-25 | One -piece type wheelchair motors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204794624U true CN204794624U (en) | 2015-11-18 |
Family
ID=54534599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520443435.3U Active CN204794624U (en) | 2015-06-25 | 2015-06-25 | One -piece type wheelchair motors |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204794624U (en) |
-
2015
- 2015-06-25 CN CN201520443435.3U patent/CN204794624U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102005889A (en) | Electrically driven equipment with control function of brushless direct current motor | |
| CN103001423A (en) | Internal-external double-stator electro-magnetic double-salient starter generator | |
| CN102891577B (en) | Switch reluctance motor | |
| CN201224318Y (en) | Electronic control electric magnetic differential drive axle | |
| CN204179910U (en) | A kind of electric tool brushless motor structure | |
| CN204794624U (en) | One -piece type wheelchair motors | |
| CN110311525A (en) | A kind of axial and radial mixing behavior magnetic flux high-torque permanent magnet motor | |
| CN204794552U (en) | Wheelchair motors with electromagnetism brake | |
| CN210592478U (en) | Aircraft tractor | |
| CN204794479U (en) | A there is brush motor for wheelchair | |
| CN204886462U (en) | Permanent -magnet machine's rotor | |
| CN206272387U (en) | A kind of high-performance brshless DC motor | |
| CN204794622U (en) | Take wheelchair motors of filtering function | |
| CN204967526U (en) | Brushless electron fan of direct current for car | |
| CN109660076B (en) | Brushless motor for automobile EPS | |
| CN206272456U (en) | A kind of brshless DC motor | |
| CN201393150Y (en) | Permanent-magnetic DC electric motor with double commutators | |
| CN206211805U (en) | Direct current generator | |
| WO2006000131A1 (en) | Brushless dc motor with external hall element | |
| CN201629635U (en) | Permanent magnet synchronous motor for new energy automobile | |
| CN201328042Y (en) | Large inertia motor | |
| CN108923555A (en) | Direct driving motor and household electrical appliance | |
| CN210780325U (en) | Improved motor | |
| CN201860216U (en) | Electric motor | |
| CN211209391U (en) | Electric pick rotor-stator structure with concentric windings |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |