CN205930645U - Windscreen wiper motor system and have its vehicle - Google Patents
Windscreen wiper motor system and have its vehicle Download PDFInfo
- Publication number
- CN205930645U CN205930645U CN201620785805.6U CN201620785805U CN205930645U CN 205930645 U CN205930645 U CN 205930645U CN 201620785805 U CN201620785805 U CN 201620785805U CN 205930645 U CN205930645 U CN 205930645U
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- power supply
- electrical machine
- pressure
- motor
- rain shaving
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Abstract
The utility model discloses a windscreen wiper motor system and have its vehicle, wherein, the windscreen wiper motor system include: motor portion, motor portion includes a set of carbon brush, the power supply unit, the power supply unit be used for for motor portion provides DC power supply, pressure regulating portion, the input of pressure regulating portion with the power supply unit links to each other, the pressure regulating inferior officer a DC conversion of DC power supply output is the second direct current in order to pass through the output of pressure regulating portion exports to motor portion, selection portion, selection portion is selected according to user instructions first direct current is given motor portion power supply or the second direct current is given the power supply of motor portion. This windscreen wiper motor system, the portion just realizes two kinds of rotational speeds of motor output through the pressure regulating to motor portion only need set up a set of carbon brush, can reduce the noise and the electromagnetic interference of windscreen wiper motor, the greatly reduced cost.
Description
Technical field
This utility model is related to technical field of vehicle, has this windscreen wiper particularly to a kind of rain shaving electrical machine system and one kind
The vehicle of electric system.
Background technology
Windscreen wiper assembly system in Current vehicle typically there must be two or more rotating speeds, and this requires in design motor
When be necessarily designed to enable the scheme of two kinds of rotating speeds.
In correlation technique, a kind of design of electrical motor scheme is the carbon brush different using two groups, can be realized by two groups of carbon brush
Two kinds of different effective coiling numbers of turn, thus realizing two kinds of rotating speed outputs of motor, but the program sets because of the position of high speed carbon brush
Meter, can make the potential of the ceaselessly a part of coiling of short circuit of high speed carbon brush during motor operation, thus producing larger electric spark and making an uproar
Sound, and electric spark can the more serious electromagnetic interference of producing ratio.Another kind of design of electrical motor scheme is using single-chip microcomputer design, that is, pass through
Software programming is realized motor with module arithmetic and is exported two kinds of different rotating speeds, but the program is because needing software programming, thus setting
Meter cost and research and development requirement are higher, and it also requires more electronic module, and need single-chip microcomputer and automobile BCM
(BodyControlModule, car body control module) is communicated, so needing vehicle body to increase the network port and control module,
Cost also can accordingly be lifted.
Accordingly, it would be desirable to improve to the rain shaving electrical machine assembly scheme of vehicle.
Utility model content
This utility model is intended at least solve one of technical problem in correlation technique to a certain extent.For this reason, this reality
It is to propose a kind of rain shaving electrical machine system with a new purpose, motor outputting two rotating speeds are just realized by pressure-regulating portion, from
Noise and the electromagnetic interference of rain shaving electrical machine and motor section only need to arrange one group of carbon brush, can be reduced, substantially reduce cost.
Another purpose of the present utility model is to propose a kind of vehicle.
For reaching above-mentioned purpose, a kind of rain shaving electrical machine system that on the one hand this utility model proposes, including：Motor section, institute
State motor section and include one group of carbon brush；Power supply unit, described power supply unit is in order to provide DC source to described motor section；Pressure-regulating portion, institute
The input stating pressure-regulating portion is connected with described power supply unit, the first unidirectional current conversion that described DC source is exported by described pressure-regulating portion
Exported to described motor section with the outfan by described pressure-regulating portion for the second unidirectional current；Selector, described selector according to
Family instruction selects described first direct current to supply electricity to, and described motor section is powered or described second direct current supplies electricity to described motor section and powers.
According to the utility model proposes rain shaving electrical machine system, by power supply unit, the first unidirectional current exporting and pressure-regulating portion are defeated
The second unidirectional current going out is powered to motor section respectively, achievable motor outputting two rotating speeds, thus motor section only need to arrange one group
Carbon brush, cancels high speed carbon brush, can not only reduce noise and the electromagnetic interference of rain shaving electrical machine, can also substantially reduce cost,
Cost and research and development requirement need not be reduced a lot, more have the market advantage using single-chip microcomputer design.
Wherein, described pressure-regulating portion lifts voltage conversion circuit for DC/DC, and described DC/DC lifting voltage conversion circuit is according to described
Voltage relationship between first unidirectional current and described second unidirectional current carries out boosting work or blood pressure lowering works so that described second is straight
Stream electricity is in voltage stabilizing state.
Specifically, described DC/DC lifting voltage conversion circuit includes pressure regulation chip, the first boosted switch pipe and second liter and presses off
Guan Guan, the first step-down switching pipe and the second step-down switching pipe, described pressure regulation chip is by described first boosted switch pipe and institute
State the second boosted switch pipe and be controlled such that described DC/DC lifting voltage conversion circuit carries out work of boosting, or by described
First step-down switching pipe and described second step-down switching pipe are controlled such that described DC/DC lifting voltage conversion circuit carries out blood pressure lowering
Work.
And, described DC/DC lifting voltage conversion circuit also includes feedback circuit, described feedback circuit is by described second direct current
The Voltage Feedback of electricity, to described pressure regulation chip, adjusts described first boosted switch pipe and described second liter by described pressure regulation chip
The switching frequency of pipe of compressing switch adjusts described the so that described second unidirectional current is in voltage stabilizing state, or by described pressure regulation chip
The switching frequency of one step-down switching pipe and described second step-down switching pipe is so that described second unidirectional current is in voltage stabilizing state.
Wherein, when described first direct current supplies electricity to described motor section and powers, the motor in described motor section is with the first rotating speed shelves
Position is run, and described second direct current supplies electricity to described motor section when powering, and described motor is run with the second rotating speed gear.
Specifically, the DC source of described power supply unit is provided by the accumulator of vehicle.
Specifically, described motor section includes the first feeder ear and the second feeder ear, and described first feeder ear is connected respectively to
The outfan of described pressure-regulating portion and the outfan of described power supply unit, described second feeder ear ground connection.
Additionally, this utility model also proposed a kind of vehicle, it includes above-mentioned rain shaving electrical machine system.
Vehicle of the present utility model, using above-mentioned rain shaving electrical machine system, achievable rain shaving electrical machine outputting two rotating speeds, from
And one group of carbon brush only need to be set in rain shaving electrical machine, cancel high speed carbon brush, the noise of rain shaving electrical machine can not only be reduced and electromagnetism is done
Disturb, cost can also be substantially reduced, and demand can be met.
Brief description
Fig. 1 is the block diagram of the rain shaving electrical machine system according to this utility model embodiment；
Fig. 2 is the structural representation of the rain shaving electrical machine system according to one embodiment of this utility model；And
Fig. 3 is the circuit diagram of the pressure-regulating portion according to one embodiment of this utility model.
Specific embodiment
Embodiment of the present utility model is described below in detail, the example of described embodiment is shown in the drawings, wherein ad initio
To the element that same or similar label represents same or similar element or has same or like function eventually.Below by ginseng
The embodiment examining Description of Drawings is exemplary it is intended to be used for explaining this utility model, and it is not intended that to this utility model
Restriction.
Below with reference to the accompanying drawings to describe the rain shaving electrical machine system of this utility model embodiment proposition and there is this windscreen wiper electricity
The vehicle of machine system.
In conjunction with shown in Fig. 1 and Fig. 2, the rain shaving electrical machine system that this utility model embodiment proposes includes：Motor section 10, power supply
Portion 20, pressure-regulating portion 30 and selector 40.
Wherein, motor section 10 need to include one group of carbon brush such as low speed carbon brush, and power supply unit 20 is in order to provide to motor section 10
DC source.According to an embodiment of the present utility model, the DC source of power supply unit 20 can be provided by the accumulator of vehicle,
Provided by vehicle body power supply, specifically can be as shown in Figure 2.
As shown in figure 1, the input of pressure-regulating portion 30 is connected with power supply unit 20, pressure-regulating portion 30 DC source is exported first
Unidirectional current such as 8-15V is converted to the second unidirectional current such as 10V and is exported to motor section 10 with the outfan by pressure-regulating portion 30.Choosing
Selecting portion 40 selects the first direct current to supply electricity to that motor section 10 is powered or the second direct current supplies electricity to motor section 10 and powers according to user instruction.Example
As user can input gear instruction by rain shaving electrical machine gear knob or wiper switch, and selector 40 is come according to gear instruction
Selection is that power supply unit 20 is powered directly to motor section, or selecting the second direct current that pressure-regulating portion 30 exports to supply electricity to motor section 10 supplies
Electricity, so, motor section 10 is respectively by the first unidirectional current and the second powered by direct current, it is possible to achieve rain shaving electrical machine exports two kinds and turns
Speed.
According to the rain shaving electrical machine system of this utility model embodiment, the first unidirectional current being exported by power supply unit and pressure-regulating portion
Second unidirectional current of output is powered to motor section respectively, and achievable motor outputting two rotating speeds, thus motor section only need to arrange one
Group carbon brush, cancels high speed carbon brush, can not only reduce noise and the electromagnetic interference of rain shaving electrical machine, can also substantially reduce cost,
Design without using single-chip microcomputer, cost and research and development are required to reduce a lot, more has the market advantage.
According to an embodiment of the present utility model, as shown in figure 3, pressure-regulating portion 30 can change electricity for DC/DC buck
Road, DC/DC lifting voltage conversion circuit is risen according to the voltage relationship between described first unidirectional current and described second unidirectional current
Pressure work or blood pressure lowering work so that described second unidirectional current is in voltage stabilizing state.That is, when the first galvanic voltage is big
When the second galvanic voltage, DC/DC lifting voltage conversion circuit carries out blood pressure lowering work, when the first galvanic voltage is less than the
During two galvanic voltage, DC/DC lifting voltage conversion circuit carries out work of boosting, so that the second unidirectional current is located always
In voltage stabilizing state, that is, keep voltage constant, such as 10V.
Specifically, as shown in figure 3, DC/DC lifting voltage conversion circuit includes pressure regulation chip 301, the first step-down switching pipe Q1
With the second step-down switching pipe Q2, the first boosted switch pipe Q3 and the second boosted switch pipe Q4, pressure regulation chip 301 is by dropping to first
The pipe Q1 and the second step-down switching pipe Q2 that compresses switch is controlled such that DC/DC lifting voltage conversion circuit carries out blood pressure lowering work, or adjusts
Pressure chip 301 is changed by the first boosted switch pipe Q3 and the second boosted switch pipe Q4 is controlled such that with DC/DC buck
Circuit carries out work of boosting.Say, it is that pressure regulation chip passes through RT that DC/DC lifting voltage conversion circuit stepping functions realize principle
The pull down resistor R1 that pin connects provides a fixed frequency to H01 pin and L01 pin, is made with doing the frequency driving metal-oxide-semiconductor
With (basic frequency), metal-oxide-semiconductor Q1 and metal-oxide-semiconductor Q2 allows inductance L produce electricity of inducting by the frequency that corresponding pin H01, L01 provide
Gesture, and then produce the output Vout after transformation, realize buck functionality；Or the pull down resistor that pressure regulation chip is connected by RT pin
R1 provides a fixed frequency to H02 pin and L02 pin, to be the frequency usage (basic frequency) driving metal-oxide-semiconductor, metal-oxide-semiconductor Q3
Inductance L is allowed to produce induced potential with metal-oxide-semiconductor Q4 by the frequency that corresponding pin H02, L02 provide, and then after generation transformation
Output Vout, realizes boost function.Wherein, when DC/DC lifting voltage conversion circuit carries out blood pressure lowering work, metal-oxide-semiconductor Q1 and metal-oxide-semiconductor
Q2 alternate conduction or shutoff, metal-oxide-semiconductor Q3 is in normally on, and Q4 is in normally-off state；Lift voltage conversion circuit in DC/DC
Carry out boosting work when, metal-oxide-semiconductor Q3 and metal-oxide-semiconductor Q4 alternate conduction or shutoff, metal-oxide-semiconductor Q1 is in normally on, and Q2 is in often
Off state.
And, as shown in figure 3, DC/DC lifting voltage conversion circuit also includes feedback circuit, feedback circuit is by the second unidirectional current
Voltage export Vout pressure regulation chip 301 fed back to by feedback pin FB, boosted in DC/DC lifting voltage conversion circuit
During work, the switching frequency of the first boosted switch pipe Q3 and the second boosted switch pipe Q4 is adjusted so that second by pressure regulation chip 301
Unidirectional current is in voltage stabilizing state；Adjust first when DC/DC lifting voltage conversion circuit carries out blood pressure lowering work by pressure regulation chip 301
The switching frequency of step-down switching pipe Q1 and the second step-down switching pipe Q2 is so that the second unidirectional current is in voltage stabilizing state.That is,
The output voltage signal sampled by feedback pin FB, enters the error comparator of pressure regulation chip internal, thus adjusting H01 pipe
The frequency of foot/L01 pin or the frequency of H02 pin/L02 pin, reach the effect of regulated output voltage Vout.
In embodiment of the present utility model, the first direct current supply electricity to motor section 10 power supply when, the motor in motor section 10 with
First rotating speed gear runs such as high-speed cruising, and when the second direct current supplies electricity to motor section 10 power supply, motor is transported with the second rotating speed gear
Row such as low cruise.
Therefore, the rain shaving electrical machine system of this utility model embodiment, rain shaving electrical machine adopts single group carbon brush to design, and eliminates height
Fast carbon brush, in conjunction with pressure regulation work, the high-speed cruising of achievable rain shaving electrical machine and the low cruise of pressure-regulating portion.And, in order to reduce
Cost, can not pass through at a high speed pressure-regulating portion, and low speed reduces input voltage by pressure-regulating portion, thus realizing low speed.Due to there is no height
Fast carbon brush, the electric spark of carbon brush for electric machine and vibrations generation can reduce a lot, so the noise of motor can be less, electric spark reduces,
Then the electromagnetic interference of motor can be less.And, the electronics wiper of relative mcu programming, cost and research and development requirement can reduce very
Many, more there is the market advantage.
According to an embodiment of the present utility model, as shown in Fig. 2 motor section 10 includes the first feeder ear 101 and second
Feeder ear 102, the first feeder ear 101 is connected respectively to the outfan of the outfan of pressure-regulating portion 30 and power supply unit, and (in figure is not shown
Go out), the second feeder ear 102 is grounded, and is respectively adopted the first direct current thus realizing rain shaving electrical machine and can powering using different power supplys
Electricity power supply and the second powered by direct current, realizing rain shaving electrical machine outputting two rotating speeds is high speed and low speed.
In sum, the design of the rain shaving electrical machine system that this utility model embodiment proposes, comprises the machinery of motor
Structure and the design of pressure-regulating portion, frame for movement comprises the adjustment of carbon brush quantity i.e. only with one group of carbon brush, and pressure-regulating portion comprises direct current
Voltage reduction module, Voltage stabilizing module, the design of DC boosting module, thus combined the design of pressure-regulating portion using single group carbon brush, be can achieve
The high speed rotating speed of rain shaving electrical machine and low rotation speed, solve the problems, such as that vehicle windscreen wiper noise is big and electromagnetic interference is excessive, and real
Ready-made relatively low.
Additionally, this utility model embodiment also proposed a kind of vehicle, it includes above-mentioned rain shaving electrical machine system.
The vehicle of this utility model embodiment, using above-mentioned rain shaving electrical machine system, achievable rain shaving electrical machine exports two kinds
Rotating speed, thus one group of carbon brush only need to be arranged in rain shaving electrical machine, cancels high speed carbon brush, can not only reduce rain shaving electrical machine noise and
Electromagnetic interference, can also substantially reduce cost, and can meet demand.
In description of the present utility model it is to be understood that term " " center ", " longitudinal ", " horizontal ", " length ", " width
Degree ", " thickness ", " on ", D score, "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outward ", " suitable
The orientation of instruction such as hour hands ", " counterclockwise ", " axial ", " radially ", " circumferential " or position relationship are based on orientation shown in the drawings
Or position relationship, be for only for ease of description this utility model and simplify description, rather than instruction or hint indication device or
Element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to limit of the present utility model
System.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or hint relative importance
Or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include at least one this feature.In description of the present utility model, " multiple " are meant that at least two, such as two
Individual, three etc., unless otherwise expressly limited specifically.
In this utility model, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection ", " Gu
Fixed " etc. term should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or integral；Can be
It is mechanically connected or electrically connect；Can be to be joined directly together it is also possible to be indirectly connected to by intermediary, can be two
The connection of element internal or the interaction relationship of two elements, limit unless otherwise clear and definite.Common skill for this area
For art personnel, concrete meaning in this utility model for the above-mentioned term can be understood as the case may be.
In this utility model, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score
Can be the first and second feature directly contacts, or the first and second features pass through intermediary mediate contact.And, first is special
Levy second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only
Represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " permissible
Be fisrt feature immediately below second feature or obliquely downward, or be merely representative of fisrt feature level height and be less than second feature.
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy describing with reference to this embodiment or example
Point is contained at least one embodiment of the present utility model or example.In this manual, the schematic table to above-mentioned term
State and be necessarily directed to identical embodiment or example.And, the specific features of description, structure, material or feature are permissible
Any one or more embodiments or example combine in an appropriate manner.Additionally, in the case of not conflicting, this area
Technical staff the feature of the different embodiments described in this specification or example and different embodiment or example can be entered
Row combines and combines.
Although of the present utility model embodiment has been shown and described above it is to be understood that above-described embodiment is
Exemplary it is impossible to be interpreted as that those of ordinary skill in the art is in scope of the present utility model to restriction of the present utility model
Interior above-described embodiment can be changed, change, replacing and modification.
Claims (8)
1. a kind of rain shaving electrical machine system is it is characterised in that include：
Motor section, described motor section includes one group of carbon brush；
Power supply unit, described power supply unit is in order to provide DC source to described motor section；
Pressure-regulating portion, the input of described pressure-regulating portion is connected with described power supply unit, and described DC source is exported by described pressure-regulating portion
First unidirectional current is converted to the second unidirectional current and is exported to described motor section with the outfan by described pressure-regulating portion；
Selector, described selector selects described first direct current to supply electricity to described motor section according to user instruction to power or described second
Direct current supplies electricity to described motor section and powers.
2. rain shaving electrical machine system according to claim 1 is it is characterised in that described pressure-regulating portion is changed for DC/DC buck
Circuit, described DC/DC lifting voltage conversion circuit is according to the voltage relationship between described first unidirectional current and described second unidirectional current
Carry out boosting work or blood pressure lowering works so that described second unidirectional current is in voltage stabilizing state.
3. rain shaving electrical machine system according to claim 2 is it is characterised in that described DC/DC lifting voltage conversion circuit includes
Pressure regulation chip, the first boosted switch pipe and the second boosted switch pipe, the first step-down switching pipe and the second step-down switching pipe, described tune
Pressure chip is by being controlled such that described DC/DC buck to described first boosted switch pipe and described second boosted switch pipe
Change-over circuit carry out boost work, or by described first step-down switching pipe and described second step-down switching pipe are controlled with
Described DC/DC lifting voltage conversion circuit is made to carry out blood pressure lowering work.
4. rain shaving electrical machine system according to claim 3 is it is characterised in that described DC/DC lifting voltage conversion circuit also wraps
Include feedback circuit, described feedback circuit by the described second galvanic Voltage Feedback to described pressure regulation chip, by described pressure regulation
Chip adjusts the switching frequency of described first boosted switch pipe and described second boosted switch pipe so that at described second unidirectional current
In voltage stabilizing state, or the switch adjusting described first step-down switching pipe and described second step-down switching pipe by described pressure regulation chip
Frequency is so that described second unidirectional current is in voltage stabilizing state.
5. the rain shaving electrical machine system according to any one of claim 1-4 is it is characterised in that described first direct current supplies electricity to institute
When stating motor section and powering, the motor in described motor section is run with the first rotating speed gear, and described second direct current supplies electricity to described motor
When portion powers, described motor is run with the second rotating speed gear.
6. rain shaving electrical machine system according to claim 1 is it is characterised in that the DC source of described power supply unit is by vehicle
Accumulator provides.
7. rain shaving electrical machine system according to claim 1 is it is characterised in that described motor section includes the first feeder ear and
Two feeder ears, described first feeder ear is connected respectively to the outfan of described pressure-regulating portion and the outfan of described power supply unit, described
Second feeder ear ground connection.
8. a kind of vehicle is it is characterised in that include the rain shaving electrical machine system according to any one of claim 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620785805.6U CN205930645U (en) | 2016-07-25 | 2016-07-25 | Windscreen wiper motor system and have its vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620785805.6U CN205930645U (en) | 2016-07-25 | 2016-07-25 | Windscreen wiper motor system and have its vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205930645U true CN205930645U (en) | 2017-02-08 |
Family
ID=57926901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620785805.6U Active CN205930645U (en) | 2016-07-25 | 2016-07-25 | Windscreen wiper motor system and have its vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205930645U (en) |
-
2016
- 2016-07-25 CN CN201620785805.6U patent/CN205930645U/en active Active
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