CN203871998U - Motor - Google Patents
Motor Download PDFInfo
- Publication number
- CN203871998U CN203871998U CN201420179241.2U CN201420179241U CN203871998U CN 203871998 U CN203871998 U CN 203871998U CN 201420179241 U CN201420179241 U CN 201420179241U CN 203871998 U CN203871998 U CN 203871998U
- Authority
- CN
- China
- Prior art keywords
- magnet
- connecting portion
- wire harness
- motor
- magnetic element
- 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
- 230000005855 radiation Effects 0.000 abstract description 21
- 238000010586 diagram Methods 0.000 description 9
- 239000000463 material Substances 0.000 description 4
- 238000000354 decomposition reaction Methods 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 239000011324 bead Substances 0.000 description 2
- 230000005670 electromagnetic radiation Effects 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- KFZAUHNPPZCSCR-UHFFFAOYSA-N iron zinc Chemical compound [Fe].[Zn] KFZAUHNPPZCSCR-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Motor Or Generator Frames (AREA)
Abstract
The utility model provides a motor. The motor comprises a motor body, a wire harness and a magnetic element. One end of the wire harness is connected with the motor body. The magnetic element is positioned outside the motor body and connected with the wire harness. The magnetic element is fixed to the wire harness of the motor, so that impedance of the wire harness is increased, radiation from the motor to external equipment is minimized, and EMI test disturbance residual power is increased. Moreover, a mode to reduce radiation is simple and the cost is low by employing the magnetic element.
Description
Technical field
The utility model relates to machine field, more specifically, relates to a kind of motor that environment electromagnetics is disturbed that reduces.
Background technology
At present, the fan blade using on household electrical appliance, drive as axial-flow leaf, through-flow fan blade etc. all need to use motor, in order to improve the efficiency of fan blade, direct current machine uses in a large number, in order to meet Structural Design Requirement, part motor wire is partially long, and so conductor length is longer, and the radiation of motor is larger, cause equipment EMI(Electromagnetic Interference, electromagnetic interference) exceed standard.In existing situation, in order to meet EMI requirement, normal conditions are change motherboard design, cause the cost of motor obviously to go up.
Utility model content
The utility model is intended at least solve one of technical problem existing in prior art.
For this reason, the object of the utility model aspect is, provides a kind of and reduces Ambient radiation dose and the low motor of cost.
For achieving the above object, embodiment of the present utility model provides a kind of motor, comprising: motor body; Wire harness, one end of described wire harness is connected with described motor body; And magnetic element, described magnetic element is positioned at outside described motor, and is connected with described wire harness.
The motor that the utility model embodiment provides, comprises motor body, wire harness and magnetic element, and one end of wire harness is connected with motor body, and wire harness is as radiation-curable electromagnetic antenna in motor, and the length of wire harness is longer, causes the amount of radiation of motor larger; Magnetic element is positioned at outside motor, and be connected with wire harness, on the one hand, magnetic element can absorb the electromagnetic wave of wire harness radiation effectively, on the other hand, magnetic element is connected with wire harness, can reduce common mode disturbances by increasing impedance of wiring harness, the setting of magnetic element, can offset and increase the EMI the bringing problem that exceeds standard because of wire harness length, the EMI of motor is met the demands, with in prior art, reduce compared with motor radiation by change motherboard design, increasing magnetic element, to reduce the mode of EMI simple, cost is low, and make the simple in structure of motor, be easy to into product.
In sum, the motor that the utility model embodiment provides, reduces the electromagnetic wave of wire harness radiation by magnetic element is set, like this, can be in the situation that wire harness length increases, ensure that the EMI of motor meets the demands, realize the low radiation of motor.
In addition, the motor providing according to the utility model above-described embodiment also has following additional technical feature:
According to an embodiment of the present utility model, described magnetic element is near the other end of described wire harness.
According to an embodiment of the present utility model, described magnetic element comprises magnet ring, and the described other end of described wire harness passes the centre bore of described magnet ring, and is clamped in described magnet ring.
According to an embodiment of the present utility model, described magnetic element comprises magnet ring, and described wire harness is wrapped on described magnet ring.
According to an embodiment of the present utility model, described magnet ring comprises the first magnet and the second magnet, and the cross section of described the first magnet and described the second magnet is all semicircular; Described magnetic element also comprises connector, and described the first magnet is fixedly connected with by described connector with described the second magnet.
According to an embodiment of the present utility model, on described connector, offer container cavity, described the first magnet and described the second magnet are all fixed in described container cavity.
According to an embodiment of the present utility model, described connector is resilient sleeve, and described resilient sleeve is enclosed within outside described the first magnet and described the second magnet.
According to an embodiment of the present utility model, described connector comprises the first connecting portion and the second connecting portion, between described the first connecting portion and described the second connecting portion, form described container cavity, and described the first connecting portion can be connected to opening and closing with described the second connecting portion.
According to an embodiment of the present utility model, the two ends of described the first connecting portion are removably connected by screw or buckle respectively with the two ends of described the second connecting portion.
According to an embodiment of the present utility model, one end of one end of described the first connecting portion and described the second connecting portion is rotationally connected, and the other end of described the first connecting portion is removably connected by screw or buckle with the other end of described the second connecting portion.
Additional aspect of the present utility model and advantage will become in description part below obviously, or recognize by practice of the present utility model.
Brief description of the drawings
Above-mentioned and/or additional aspect of the present utility model and advantage accompanying drawing below combination is understood becoming the description of embodiment obviously and easily, wherein:
Fig. 1 is according to the perspective view of the motor described in first embodiment of the utility model;
Fig. 2 is the main TV structure schematic diagram of Fig. 1;
Fig. 3 is the right TV structure schematic diagram of Fig. 2;
Fig. 4 is the structural representation of looking up of Fig. 2;
Fig. 5 is the decomposition texture schematic diagram of motor shown in Fig. 1;
Fig. 6 is the structural representation of magnetic element in Fig. 1;
Fig. 7 is the decomposition texture schematic diagram of magnetic element shown in Fig. 6;
Fig. 8 is the main TV structure schematic diagram of magnetic element shown in Fig. 6;
Fig. 9 is that the A-A of Fig. 8 is to sectional structure schematic diagram;
Figure 10 is that the B-B of Fig. 8 is to sectional structure schematic diagram;
Figure 11 is according to the decomposition texture schematic diagram of the motor described in second embodiment of the utility model;
Figure 12 is the sectional structure schematic diagram of Figure 11;
Figure 13 is according to the perspective view of the motor described in the 3rd embodiment of the utility model.
Wherein, in Fig. 1 to Figure 13, the corresponding relation between Reference numeral and component names is:
1 direct current machine, 10 motor bodies, 20 wire harness, 30 magnetic elements, 300 magnet rings, 3,000 first magnets, 3,001 second magnets, 301 connectors, 3,010 first connecting portions, 3,011 second connecting portions, 3012 buckles
Embodiment
In order more clearly to understand above-mentioned purpose of the present utility model, feature and advantage, below in conjunction with the drawings and specific embodiments, the utility model is further described in detail.It should be noted that, in the situation that not conflicting, the feature in the application's embodiment and embodiment can combine mutually.
A lot of details are set forth in the following description so that fully understand the utility model; but; the utility model can also adopt other to be different from mode described here and implement, and therefore, protection range of the present utility model is not subject to the restriction of following public specific embodiment.
Describe with reference to the accompanying drawings according to the motor of some embodiment of the utility model.
As shown in Figures 1 to 4, a kind of motor providing according to some embodiment of the utility model, particularly, this motor is direct current machine 1, comprises motor body 10, wire harness 20 and magnetic element 30.
Wherein, one end of described wire harness 20 is connected with described motor body 10;
Described magnetic element 30 is positioned at outside described motor body 10, and is connected with described wire harness 20.
The direct current machine that the utility model embodiment provides, comprises motor body, wire harness and magnetic element, and one end of wire harness is connected with motor body, and wire harness is as radiation-curable electromagnetic antenna in motor, and the length of wire harness is longer, causes the amount of radiation of motor larger; Magnetic element is positioned at outside motor, and be connected with wire harness, on the one hand, magnetic element can absorb the electromagnetic wave of wire harness radiation effectively, on the other hand, magnetic element is connected with wire harness, can reduce common mode disturbances by increasing impedance of wiring harness, the setting of magnetic element, can offset and increase the EMI the bringing problem that exceeds standard because of wire harness length, the EMI of motor is met the demands, with in prior art, reduce compared with motor radiation by change motherboard design, increasing magnetic element, to reduce the mode of EMI simple, cost is low, and make the simple in structure of motor, be easy to into product.
In sum, the direct current machine that the utility model embodiment provides, reduces the electromagnetic wave of wire harness radiation by magnetic element is set, like this, can be in the situation that wire harness length increases, ensure that the EMI of motor meets the demands, realize the low radiation of direct current machine.
Certainly, the mode that reduces motor radiation by setting up magnet ring not only can be applied on direct current machine, can also be applied on alternating current machine, does not repeat them here.
Further, as shown in Figure 1, described magnetic element 30 is near the other end of described wire harness 20.
Because the amount of electromagnetic radiation of the wire harness other end is larger, magnetic element, near the other end of wire harness, can more effectively reduce the wire harness radiation that environment produces to external world.
In a specific embodiment of the present utility model, as shown in Figure 9 and Figure 10, described magnetic element 30 comprises magnet ring 300, and as shown in figure 13, the described other end of described wire harness 20 passes the centre bore of described magnet ring 300, and is clamped in described magnet ring 300.
In another specific embodiment of the present utility model, as shown in Figure 9 and Figure 10, described magnetic element 30 comprises magnet ring 300, and as shown in Fig. 5, Figure 11 and Figure 12, described wire harness 20 is wrapped on described magnet ring 300.
In the embodiment shown in fig. 13, the other end of wire harness 20 only passes from the central hole of magnet ring, is not wrapped on magnet ring; And in the embodiment shown in Fig. 5, Figure 11 and Figure 12, the other end of wire harness 20 is wound around after at least one circle on magnet ring 300, then pass from the centre bore of magnet ring 300.
Wire harness is clamped in magnet ring or wire harness is wrapped on magnet ring, and magnet ring and wire harness are connected in series, and the impedance that can increase wire harness reduces common mode disturbances, in solution prior art, because wire harness length increases the EMI the bringing problem that exceeds standard, the EMI of motor is met the demands; Wire harness is wrapped on magnet ring, in the time that motor needs wire harness that length grows, can reduce the winding number of turns of wire harness on magnet ring, in the time that motor needs the shorter wire harness of length, can increase the winding number of turns of wire harness on magnet ring, so that motor is applicable to various situations.The winding number of turns of wire harness on magnet ring can be set voluntarily according to actual conditions.
In embodiment more of the present utility model, described magnet ring 300 is ferrite bead, and its material is iron zinc, MnZn or other materials.
Ferrite bead, to electromagnetic good absorbing effect, can reduce the amount of electromagnetic radiation of wire harness effectively, and the EMI that motor is produced meets the requirements.
In a specific embodiment of the present utility model, described wire harness 20 is direct current machine power supply, speed governing, feedback wire harness, is 5 heart yearns.
In embodiment more of the present utility model, as shown in Fig. 6, Fig. 7 and Figure 10, described magnet ring 300 comprises the first magnet 3000 and the second magnet 3001, and the cross section of described the first magnet 3000 and described the second magnet 3001 is all semicircular; Described magnetic element 30 also comprises connector 301, and described the first magnet 3000 is fixedly connected with by described connector 301 with described the second magnet 3001.
Further, described connector 301 is plastic parts, as shown in Figure 6 and Figure 7, on described connector 301, offers container cavity, and described the first magnet 3000 and described the second magnet 3001 are all fixed in described container cavity.
Magnet ring comprises and is Semicircular the first magnet and the second magnet, and magnetic element also comprises connector, offers container cavity on connector, and the first magnet and the second magnet are all fixed in container cavity, have realized being fixedly connected with of the first magnet and the second magnet.
In first concrete example of the present utility model, described connector is resilient sleeve (not shown), and described resilient sleeve is enclosed within outside described the first magnet and described the second magnet.
Connector is resilient sleeve, and resilient sleeve has elasticity, when resilient sleeve is set in outside the first magnet and the second magnet, can utilize the elastic force of self, by the first magnet and the second magnet banding fixing.
In embodiment more of the present utility model, described connector 301 comprises the first connecting portion 3010 and the second connecting portion 3011, between described the first connecting portion 3010 and described the second connecting portion 3011, form described container cavity, and described the first connecting portion 3010 can be connected to opening and closing with described the second connecting portion 3011.
Connector comprises the first connecting portion and second connecting portion that can connect to opening and closing, and between the first connecting portion and the second connecting portion, form the container cavity that can hold the first magnet and the second magnet, when the first connecting portion is opened mutually with the second connecting portion, the first magnet, the second magnet can be put into the container cavity of the first connecting portion and the second connecting portion, then by the first connecting portion and the second connecting portion closure, realized the fixing of the first magnet and the second magnet.
In first concrete example, the two ends of described the first connecting portion 3010 are removably connected by screw (not shown) respectively with the two ends of described the second connecting portion 3011.
In second concrete example, the two ends of described the first connecting portion 3010 are removably connected by buckle respectively with the two ends of described the second connecting portion 3011.
In the 3rd concrete example, as shown in Figure 7 and Figure 8, one end of one end of described the first connecting portion 3010 and described the second connecting portion 3011 is rotationally connected, and the other end of described the first connecting portion 3010 is removably connected by buckle 3012 with the other end of described the second connecting portion 3011.
The first connecting portion of connector and the second connecting portion are realized and can be connected to opening and closing by screw, buckle, the mode such as be rotationally connected, and screw, buckle, the mode such as be rotationally connected are simple in structure, and cost is low, is easy to realize.
Certainly, the first connecting portion not only can be undertaken being connected to opening and closing by the mode described in above-mentioned three examples with the second connecting portion, can also carry out by other means connecting to opening and closing, as: one end of the first connecting portion and the second connecting portion is connected by screw, the other end connects by buckle, can realize equally can being connected to opening and closing of the first connecting portion and the second connecting portion; Or, one end of one end of the first connecting portion and the second connecting portion is rotationally connected, the other end of the first connecting portion is removably connected by screw with the other end of the second connecting portion, realized equally can being connected to opening and closing of the first connecting portion and the second connecting portion, other connected modes do not repeat one by one at this.
It should be noted that, wire harness 20 can be wrapped in (as shown in Figure 11 and Figure 12) on magnet ring 300, and now, wire harness 20 is between magnet ring 300 and connector 301; Certainly, wire harness 20 also can be wrapped on magnet ring 300 and connector 301 (as shown in Figure 1 and Figure 5) simultaneously.
The direct current machine of the low radiation that the utility model above-described embodiment provides, can be used for comprising the work that drives axial-flow leaf, through-flow fan blade etc. in household electrical appliance, housed device, industrial equipment.
In sum, the motor that the utility model provides, the impedance that increases wire harness by fix magnet ring on the wire harness of motor, reduce the motor radiation of equipment to external world, improve EMI test disturbance power surplus, and to reduce the mode of radiation simple by magnet ring is set, cost is low.In other words, the motor that the utility model embodiment provides, solve the electromagnetic interference problem in application of motor environment by setting up magnet ring, increase after magnet ring, the common mode disturbances of system environments declines to a great extent, increased conduction and radiation EMI allowance, solved the conduct radiation causing due to harness excess-length in the prior art problem that exceeds standard, make motor more reliably, stably operation.
In description of the present utility model, term " connection ", " fixing " etc. all should be interpreted broadly, and for example, " connection " can be to be fixedly connected with, and can be also to removably connect, or connect integratedly, or electrical connection; Can be to be directly connected, also can indirectly be connected by intermediary.For the ordinary skill in the art, can understand as the case may be the concrete meaning of above-mentioned term in the utility model.
In the description of this specification, the description of term " embodiment ", " some embodiment ", " specific embodiment " etc. means to be contained at least one embodiment of the present utility model or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, the schematic statement of above-mentioned term is not necessarily referred to identical embodiment or example.And specific features, structure, material or the feature of description can be with suitable mode combination in any one or more embodiment or example.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection range of the present utility model.
Claims (10)
1. a motor, is characterized in that, comprising:
Motor body;
Wire harness, one end of described wire harness is connected with described motor body; With
Magnetic element, described magnetic element is positioned at outside described motor body, and is connected with described wire harness.
2. motor according to claim 1, is characterized in that,
Described magnetic element is near the other end of described wire harness.
3. motor according to claim 2, is characterized in that,
Described magnetic element comprises magnet ring, and the described other end of described wire harness passes the centre bore of described magnet ring, and is clamped in described magnet ring.
4. motor according to claim 2, is characterized in that,
Described magnetic element comprises magnet ring, and described wire harness is wrapped on described magnet ring.
5. according to the motor described in claim 3 or 4, it is characterized in that,
Described magnet ring comprises the first magnet and the second magnet, and the cross section of described the first magnet and described the second magnet is all semicircular;
Described magnetic element also comprises connector, and described the first magnet is fixedly connected with by described connector with described the second magnet.
6. motor according to claim 5, is characterized in that,
On described connector, offer container cavity, described the first magnet and described the second magnet are all fixed in described container cavity.
7. motor according to claim 6, is characterized in that,
Described connector is resilient sleeve, and described resilient sleeve is enclosed within outside described the first magnet and described the second magnet.
8. motor according to claim 6, is characterized in that,
Described connector comprises the first connecting portion and the second connecting portion, between described the first connecting portion and described the second connecting portion, forms described container cavity, and described the first connecting portion can be connected to opening and closing with described the second connecting portion.
9. motor according to claim 8, is characterized in that,
The two ends of described the first connecting portion are removably connected by screw or buckle respectively with the two ends of described the second connecting portion.
10. motor according to claim 8, is characterized in that,
One end of one end of described the first connecting portion and described the second connecting portion is rotationally connected, and the other end of described the first connecting portion is removably connected by screw or buckle with the other end of described the second connecting portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420179241.2U CN203871998U (en) | 2014-04-14 | 2014-04-14 | Motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420179241.2U CN203871998U (en) | 2014-04-14 | 2014-04-14 | Motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203871998U true CN203871998U (en) | 2014-10-08 |
Family
ID=51652919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420179241.2U Expired - Lifetime CN203871998U (en) | 2014-04-14 | 2014-04-14 | Motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203871998U (en) |
-
2014
- 2014-04-14 CN CN201420179241.2U patent/CN203871998U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141008 |
|
| CX01 | Expiry of patent term |