阅读说明：本技术 用于分配清洗液的装置 (Device for dispensing a cleaning liquid ) 是由 朴钟旼 孔珞敬 韩胜植 李骐泓 李钟旭 于 2020-10-16 设计创作，主要内容包括：一种用于分配清洗液的装置,包括：盖部,清洗液被引入到该盖部中；移动轴组件,其位于盖部内；马达组件,其位于移动轴组件的一端并且配置为使移动轴组件旋转；流动孔,其位于移动轴组件中；多个分配单元,其定位成与流动孔相对应；以及控制器,其配置为控制马达组件的旋转量,该马达组件配置为将引入到该一个或多个流动孔中的清洗液选择性地排放到该多个分配单元。(An apparatus for dispensing cleaning fluid, comprising: a cap section into which a cleaning liquid is introduced; a moving shaft assembly located within the cover; a motor assembly located at one end of the moving shaft assembly and configured to rotate the moving shaft assembly; a flow bore in the moving shaft assembly; a plurality of distribution units positioned to correspond to the flow holes; and a controller configured to control an amount of rotation of a motor assembly configured to selectively discharge the cleaning solution introduced into the one or more flow holes to the plurality of dispensing units.)

1. An apparatus for dispensing a washer fluid to a windshield of a vehicle, the apparatus comprising:

a cover portion into which a cleaning liquid is introduced;

a moving shaft assembly located within the cover;

a motor assembly located at one end of the moving shaft assembly and configured to rotate the moving shaft assembly;

a flow bore in the moving shaft assembly;

a plurality of dispensing units positioned to correspond to the flow apertures; and

a controller configured to control an amount of rotation of the motor assembly, the motor assembly being configured to selectively discharge the cleaning solution introduced into the flow hole to the plurality of dispensing units.

2. The apparatus of claim 1, wherein the flow holes correspond in number to the plurality of dispensing units and are positioned to be spaced apart at the same angle based on a diameter of the moving shaft assembly.

3. The apparatus of claim 1, wherein the moving shaft assembly further comprises an introduction portion that protrudes outward from the cover portion, and into which a cleaning liquid is introduced.

4. The apparatus of claim 1, wherein the moving shaft assembly comprises:

a tubular moving shaft into which a cleaning liquid is introduced; and

an engaging portion provided at one end of the moving shaft and engaged with the motor assembly.

5. The apparatus of claim 1, wherein each of the plurality of allocation units comprises:

a housing including a through hole configured to allow the moving shaft assembly to pass therethrough;

a discharge nozzle configured to allow discharge of the introduced cleaning liquid; and

a sealing portion configured to surround the through hole.

6. The apparatus of claim 1, wherein the controller receives a cleaning request signal of a vehicle and the controller rotates the moving shaft assembly such that one of the flow holes corresponds to one of the plurality of dispensing units corresponding to the request signal.

7. The apparatus of claim 6, wherein the cleaning request signal is received from a driving assistance device located outside the vehicle.

8. The apparatus of claim 7, wherein the driving assistance apparatus comprises one or more of a camera, a light detection positioning device, a radio detection positioning device, and a camera monitoring system.

9. The apparatus of claim 1, further comprising:

a fixing pin located at one end of one of the plurality of dispensing units adjacent to the driving part; and

a stopper at an end of the moving shaft assembly adjacent the drive member.

10. The apparatus of claim 9, wherein the controller is configured to set an initial position at which the stop is in contact with the fixation pin.

11. The apparatus according to claim 1, wherein when a cleaning request of a plurality of driving assistance apparatuses is received, the controller is configured to previously clean the driving assistance apparatuses necessary for the driving condition of the vehicle.

Technical Field

The present disclosure relates to an apparatus for dispensing a cleaning liquid, and more particularly, to an apparatus for dispensing a cleaning liquid, which includes a plurality of dispensing units sequentially engaged and performs control of a motor assembly rotating a moving shaft assembly, thereby dispensing a cleaning liquid.

Background

Conventionally, a washer pump system is mounted on a vehicle to selectively supply washer fluid in a washer fluid tank to a front windshield or a rear windshield.

Since the surface of the windshield is often contaminated with foreign substances such as dust, the foreign substances such as dust on the surface of the windshield should be removed in order to sufficiently secure the front view and achieve safe operation.

As described above, in order to remove foreign substances and the like on a windshield of a vehicle, the vehicle is provided with a cleaning nozzle for spraying a cleaning liquid and a wiper system.

Therefore, when the driver operates the wash switch installed in the driver's seat in order to make the visual field clear, the wash motor is operated together with the wash switch, and the wash liquid stored in the wash liquid storage tank is sprayed to the windshield through the wash nozzle due to the operation of the wash motor. Foreign substances that hinder driving are removed by the sprayed washing liquid and the wiper operation, so that the driver can safely drive in a state where the field of view is secured.

However, in recent years, when contaminants are attached to various devices (e.g., a camera, a radio detection and positioning device (RADAR), a light detection and positioning device (LiDAR), etc.) coupled to the outside of an autonomously driven vehicle, a problem occurs in measuring data for performing autonomous driving. The stability of the vehicle is significantly threatened by such devices that cannot measure data.

Accordingly, there is a need for a device for dispensing cleaning fluid for spraying to various locations.

Disclosure of Invention

In one aspect, the present disclosure provides an apparatus for dispensing cleaning fluid that includes multiple flow paths through a single cleaning pump.

In another aspect, the present disclosure provides an apparatus for dispensing a cleaning liquid, including a discharge hole of a moving shaft assembly, the discharge hole being configured to correspond to a dispensing unit, and wherein the discharge hole is located at a position corresponding to the dispensing unit by rotation of the moving shaft.

The object of the present disclosure is not limited to the above object, and other objects of the present disclosure not mentioned can be understood by the following description, and will be clearly understood by the embodiments of the present disclosure. Further, the objects of the present disclosure can be achieved by the means described in the appended claims and combinations thereof.

In one exemplary embodiment, the present disclosure provides an apparatus for dispensing a washer fluid to a windshield of a vehicle, the apparatus comprising: a cap section into which a cleaning liquid is introduced; a moving shaft assembly located within the cover; a motor assembly located at one end of the moving shaft assembly and configured to rotate the moving shaft assembly; one or more flow holes in the moving shaft assembly; a plurality of distribution units positioned to correspond to the one or more flow apertures; and a controller configured to control an amount of rotation of a motor assembly configured to selectively discharge the cleaning solution introduced into the one or more flow holes to the plurality of dispensing units.

In addition, the one or more flow holes may correspond in number to the plurality of distribution units, and the one or more flow holes may be spaced at the same angle based on a diameter of the moving shaft assembly.

In addition, the moving shaft assembly may further include an introduction portion which protrudes outward from the cover portion and into which the cleaning solution is introduced.

In addition, the moving shaft assembly may include: a tubular moving shaft into which the cleaning liquid is introduced; an engaging portion provided at one end of the moving shaft and engaged with the motor assembly.

In addition, each of the plurality of allocation units may include: a housing including a through hole configured to allow the moving shaft assembly to pass therethrough; a discharge nozzle configured to allow discharge of the introduced cleaning liquid; and a sealing portion configured to surround the through hole.

In addition, the controller may receive a cleaning request signal of the vehicle and rotate the moving shaft assembly so that the flow hole may correspond to the dispensing unit corresponding to the request signal.

In addition, the cleaning request signal may be received from a driving assistance device located outside the vehicle.

Additionally, the driving assistance apparatus may include one or more of a camera, a light detection positioning device (LiDAR), a radio detection positioning device (RADAR), and a camera monitoring system.

In addition, the apparatus may further include: a fixing pin located at one end of the dispensing unit located close to the drive member; and a stopper located at an end of the moving shaft assembly adjacent to the driving part.

In addition, the controller may be configured to set an initial position at which the stopper is in contact with the fixing pin.

In addition, when a cleaning request of a plurality of driving assistance apparatuses is received, the controller may be configured to clean in advance the driving assistance apparatuses necessary for the driving condition of the vehicle.

Other aspects and preferred embodiments of the present disclosure are discussed below.

Drawings

The above and other features of the present disclosure will now be described in detail with reference to certain exemplary embodiments thereof as illustrated in the accompanying drawings, which are given by way of example only, and thus do not limit the present disclosure, and wherein:

FIG. 1 is a block diagram illustrating a system including an apparatus for dispensing cleaning fluid according to one embodiment of the present disclosure;

FIG. 2 is a block diagram illustrating an apparatus for dispensing cleaning fluid in accordance with one embodiment of the present disclosure;

FIG. 3 is a perspective view illustrating the driving relationship of an apparatus for dispensing cleaning fluid according to another embodiment of the present disclosure;

FIG. 4 is a sectional view illustrating a coupling relationship between dispensing units of the apparatus for dispensing cleaning solution according to one embodiment of the present disclosure; and

FIG. 5 is an enlarged view illustrating a driving part of the apparatus for dispensing cleaning solution according to one embodiment of the present disclosure.

It should be understood that the drawings are not necessarily to scale, presenting a somewhat simplified representation of various preferred features illustrative of the basic principles of the disclosure. The specific design features of the present disclosure as disclosed herein, including, for example, specific dimensions, orientations, locations, and shapes, will be determined in part by the specific intended application and use environment.

In the drawings, like or equivalent features of the disclosure are designated by reference numerals throughout the several views of the drawings.

Detailed Description

It should be understood that the term "vehicle" or "vehicular" or other similar terms as used herein include motor vehicles in general, such as passenger cars (including Sport Utility Vehicles (SUVs), public vehicles, trucks, various commercial vehicles), marine vessels (including various ships and vessels), aircraft, and the like, and include hybrid vehicles, electric vehicles, plug-in hybrid electric vehicles, hydrogen-powered vehicles, and other alternative fuel (e.g., fuel from resources other than petroleum) vehicles. As referred to herein, a hybrid vehicle is a vehicle having two or more power sources, such as gasoline-powered and electric vehicles.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items. In the specification, unless explicitly described to the contrary, the word "comprise", and variations such as "comprises" or "comprising", will be understood to imply the inclusion of stated elements but not the exclusion of any other elements. In addition, the terms "unit", "device", "component", and "module" described in the specification denote units for processing at least one function and operation, and may be implemented by hardware components or software components, and a combination thereof.

Further, the control logic of the present disclosure may be embodied as a non-transitory computer readable medium on a computer readable medium containing executable program instructions executed by a processor, controller, or the like. Examples of computer readable media include, but are not limited to, ROM, RAM, Compact Disc (CD) -ROM, magnetic tape, floppy disk, flash memory, smart cards, and optical data storage devices. The computer readable recording medium CAN also be distributed over network coupled computer systems so that the computer readable medium is stored and executed in a distributed fashion, such as through a telematics server or a Controller Area Network (CAN).

Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. The embodiments of the present disclosure may be modified in various forms, and the scope of the present disclosure should not be construed as being limited to the following embodiments. These embodiments are provided to more fully describe the disclosure to those skilled in the art.

Further, in the present specification, since names of components are the same, terms of upper, lower, and the like are assigned to the components in order to distinguish the components, but the terms are not necessarily limited to the order in the following description.

The present disclosure relates to a cleaning liquid dispensing device 100, and provides a technique for dispensing a cleaning liquid to various driving assist devices that are located outside a vehicle and are contaminated with contaminants.

The driving assistance apparatus located outside the vehicle may include a camera 420 or a camera monitoring system for providing one or more of a front image, a rear image, and a side image of the vehicle, and a light detection positioning device (LiDAR)430 and a radio detection positioning device (RADAR)410 for receiving driving information.

More preferably, for example, LiDAR 430 that receives driving information of a vehicle to perform autonomous driving is connected to LiDAR equipment as a sensor. The LiDAR device may include a laser transmit module, a laser detection module, a signal collection and processing module, and a data transmit/receive module. A laser source having a wavelength in the wavelength range of 250nm to 11 μm or capable of changing the wavelength thereof is used. Further, LiDAR devices are classified into time-of-flight (TOF) type LiDAR devices and phase-shift type LiDAR devices according to a signal modulation method.

The LiDAR 430 controls LiDAR equipment and other equipment connected to the LiDAR equipment (e.g., a LiDAR processor (not shown) for processing LiDAR sensing output). Such control includes, for example, power supply control, reset control, Clock (CLK) control, data communication control, memory control, and the like. Meanwhile, LiDAR devices are used to sense the area in front of the vehicle. Such LiDAR devices are located on a front surface of the vehicle interior, specifically, below the front windshield to transmit and receive laser light through the front windshield.

In addition, for example, the RADAR 410 is connected to a RADAR device as a sensor. The RADAR apparatus is a sensor apparatus for measuring a distance, a speed, and an angle of an object using electromagnetic waves. When the RADAR apparatus is used, an object located at the front side within a horizontal angle range of up to 150m and 30 degrees in distance may be detected using a Frequency Modulated Carrier Wave (FMCW) method or a pulse carrier wave method. The RADAR 410 controls the RADAR device and other devices connected to the RADAR device (e.g., a RADAR processor (not shown) for processing RADAR sensing output).

As described above, when contaminants are attached not only to the camera 420 and the camera monitoring system but also to the LiDAR 430 and the RADAR 410, driving environment information cannot be received under autonomous driving conditions of the vehicle, and a structure of an injection device capable of injecting a cleaning liquid onto each device is indispensably required.

In addition, the present disclosure provides a cleaning solution dispensing device 100 for selectively spraying a cleaning solution to a plurality of paths through a single dispensing device.

Fig. 1 and 2 are block diagrams and block diagrams illustrating a cleaning solution dispensing apparatus 100 according to the present disclosure.

As shown in fig. 1 and 2, the cleaning solution dispensing device 100 includes a lid portion 110 that houses a combination of one or more dispensing units 131 and is configured to be fluidly connected to the dispensing units 131 to selectively spray cleaning solution to each device. More preferably, the cover part 110 includes an upper cover 110a and a lower cover 110b, and is configured to accommodate the distribution unit 131, the moving shaft assembly 120, and the motor assembly 140.

In one embodiment of the present disclosure, six dispensing units 131 are provided, and each of the six dispensing units 131 is configured to be fluidly connected to each mechanism requiring the ejection of cleaning solution in response to a request signal received by the controller 200.

Each dispensing unit 131 including a hollow is positioned and the moving shaft assembly 120 located in the hollow is provided. The introduction part 132 is configured to protrude to the outside of the cap part 110 at one end of the moving shaft assembly 120 so as to introduce the cleaning solution thereto, and the moving shaft assembly 120 includes flow holes 122 corresponding to the number of the distribution units 131 so as to allow the cleaning solution introduced in the length direction of the moving shaft assembly 120 to be selectively moved through each distribution unit 131.

The introduction portion 132 is a component that is fluidly connected to the moving shaft assembly 120, and may be formed coaxially with the moving shaft 121, but includes all forms that are fluidly connectable.

Each flow hole 122 may be selectively switched to a position corresponding to each distribution unit 131 disposed in the length direction of the moving shaft assembly 120. Accordingly, in one embodiment according to the present disclosure, six flow holes 122 are positioned to be spaced apart from each other at predetermined intervals in a length direction of the moving shaft assembly 120. In one embodiment according to the present disclosure, the cleaning solution dispensing device 100 formed of six dispensing units 131 includes a moving shaft assembly 120 having six flow holes 122, and the six flow holes 122 are formed to have an interval of 60 degrees with respect to each other based on a central axis of a moving shaft 121.

One end of the moving shaft assembly 120 is engaged with the motor assembly 140. In addition, a pulse current is applied to the motor assembly 140 according to the amount of rotation applied from the controller 200, and the moving shaft assembly 120 is rotated such that the distribution unit 131, which is fluidly connected to the driving assistance apparatus that requires cleaning, and the flow hole 122 are positioned to face each other. Accordingly, the cleaning liquid introduced through the introduction portion 132 is discharged through the selected dispensing unit 131.

When receiving a plurality of cleaning requests with respect to the driving assistance apparatus, the controller 200 is configured to pre-distribute the cleaning liquid to the corresponding distribution unit 131 to mitigate the driving risk. In one embodiment of the present disclosure, the cleaning fluid dispensing apparatus 100 may be controlled such that cleaning fluid is preferentially dispensed to the RADAR 410 and LiDAR 430 in an autonomous driving environment of the vehicle, and to the camera monitoring system and windshield in a manual driving mode.

That is, the controller 200 is controlled to determine the driving condition of the vehicle and to perform cleaning of the driving assistance apparatus, which can be used to determine the driving condition, in advance.

The introduction portion 132 at the other end of the moving shaft assembly 120 is configured to be fluidly connected to a cleaning solution reservoir 310 (not shown) and to allow a cleaning solution to be introduced into the introduction portion 132 through the cleaning pump 300 between the cleaning solution reservoir 310 and the introduction portion 132.

Since the dispensing units 131 are configured to be positioned adjacent to each other and engaged with each other in the cover part 110, the number of the dispensing units 131 may be set according to a user's selection. The distribution unit 131 includes: an insertion portion 133 configured to be inserted into the distribution unit 131 adjacent thereto; and a hook groove in the adjacent dispensing unit 131 to fix the insertion part 133.

Thus, engagement between the insertion portion 133 and the hook groove is formed between two adjacent dispensing units 131, so that the two adjacent dispensing units 131 are configured to be fixed to each other. In addition, a sealing portion may be included between the insertion portion 133 and the hook groove, so that water leakage generated by coupling between the dispensing units 131 may be prevented.

The sealing part according to the present disclosure may include an O-ring on one surface of the dispensing unit 131 and an X-ring on the other surface thereof, and is configured to seal both sides of the dispensing unit 131. Accordingly, the cleaning liquid introduced through the introduction portion 132 may be discharged to the discharge hole of the distribution unit 131 corresponding to the flow hole 122.

The controller 200 may measure the current values applied to the wash pump 300 and the motor assembly 140 and the time period for which the current is applied thereto, and receive the ambient temperature value from a temperature sensor located in the wash liquid dispensing device 100.

In addition, under autonomous driving conditions of the vehicle, the controller 200 may receive cleaning request signals regarding the camera 420, the camera monitoring system, the LiDAR 430, the RADAR 410, and the like. More preferably, when the driving information measured by the camera 420, the LiDAR 430, or the RADAR 410 is less than a predetermined value, the controller 200 may be controlled to automatically spray the washing liquid to the corresponding device.

In addition, the controller 200 is configured to receive rotation information about the moving shaft assembly 120 and set an initial position of the moving shaft assembly 120. In setting the initial position of the moving shaft assembly 120, the controller 200 is configured to first rotate the stopper 154 located in the engaging portion 150 to a set position, and then rotate the stopper 154 to a position corresponding to the dispensing unit 131 located at the central portion among the plurality of dispensing units 131. That is, the initial position of the moving shaft 121 may be set to a position corresponding to the distribution unit 131 located at the central portion.

More preferably, the engaging portion 150 includes: a gear 151 configured to receive a driving force from the motor assembly 140; and a support 152 including a fixing pin 153 configured to allow the gear 151 to be positioned, to allow the stopper 154 to rotate and move on the flat surface, and to set an initial position of the stopper 154.

Accordingly, when the stopper 154 of the motor assembly 140 rotates, the moving shaft assembly 120 engaged with one end of the motor assembly 140 is configured to rotate integrally.

Further, the controller 200 may be configured to compensate for current values applied to the motor assembly 140 and the washing pump 300 and a period of time during which the current values are applied thereto according to a change in temperature conditions by a temperature sensor located in the washing liquid dispensing apparatus 100.

As described above, since the compensation of the current value and the period of time for which the current value is applied is performed in response to the change of the temperature condition, the rpm and the torque value of the cleaning pump 300 are maintained to be uniform, thereby controlling the discharge pressure of the cleaning liquid introduced through the introduction part 132 not to be changed.

In addition, even when the ambient temperature of the cleaning solution dispensing apparatus 100 varies, the pulse voltage and time applied by the motor assembly 140 are compensated, so that it is possible to maintain the rotation amount of the moving shaft assembly 120 consistently.

The moving shaft assembly 120 is rotated in a clockwise direction or a counterclockwise direction based on its initial position such that the selected dispensing unit 131 and the flow hole 122 corresponding thereto face each other.

More preferably, the controller 200 is configured to control the pulse input of the motor assembly 140 to allow the moving shaft assembly 120 to rotate from the set position to the initial position, and to store the controlled pulse input. The set position disclosed in the present disclosure refers to a position at which the flow hole 122 corresponding to the distribution unit 131 positioned near the central portion among the distribution units 131 positioned in the length direction of the moving shaft 121 is fluidly connected, and the initial position disclosed herein refers to a position that becomes a reference where the fixing pin 153 is in contact with the stopper 154.

As described above, since the initial position of the moving shaft assembly 120 is located at a position corresponding to the flow hole 122, which corresponds to the distribution unit 131 near the center of the moving shaft assembly 120 in the length direction, it is configured to minimize a delay time due to the rotation of the moving shaft assembly 120 according to the bidirectional rotation of the motor assembly 140.

In one embodiment of the present disclosure, the moving shaft assembly 120 is configured to move from the set position to the initial position when the actuator is turned on or power is applied, and thus the motor assembly 140 applies pulsed power to move the moving shaft assembly 120 from the set position to the initial position.

In order to rotate the moving axis assembly 120 from the set position to the initial position, the controller 200 is configured to store the number of pulse powers applied from the motor assembly 140 and the application time thereof.

In a state where current is applied from the controller 200 to the motor assembly 140, the controller 200 is configured to measure a rate of change of current of the wash pump 300. Thus, the controller 200 is configured to determine whether the cleaning solution dispensing apparatus 100 is malfunctioning. The rate of change of the current of the wash pump 300 to be measured is a concept including both the applied current value and the period of time during which the current value is applied.

When the current value applied to the washing liquid dispensing apparatus 300 or the motor assembly 140 introduced into the washing liquid dispensing apparatus 100 is increased, the controller 200 determines that the washing liquid dispensing apparatus 100 is out of order. In addition, when a malfunction occurs, the controller 200 resets the moving shaft assembly 120 from the set position to the initial position, and retries the discharge of the cleaning solution to the same dispensing unit 131. In the state where the discharge of the cleaning liquid is retried, when the limited current value applied to the cleaning pump 300 or the motor assembly 140 exceeds the preset limited current value, the controller 200 is configured to switch to the protection mode (power-off) to interrupt the driving of the motor assembly 140, and to transmit a failure to the user.

FIG. 3 illustrates a cleaning solution dispensing apparatus 100 according to another embodiment of the present disclosure.

As shown in fig. 3, the cleaning solution dispensing device 100 includes an introduction portion 132 positioned to project outwardly from the lid portion 110, and the introduction portion 132 is fluidly connected to a cleaning solution reservoir 310 to allow introduction of a cleaning solution compressed by a cleaning pump 300 into the cleaning solution dispensing device 100.

In addition, according to an embodiment of the present disclosure, four different dispensing units 131 are included, and are configured such that the cleaning solution is discharged through at least one dispensing unit 131 of the four different dispensing units 131 according to the amount of rotation of the moving shaft assembly 120.

The controller 200 is configured to receive a cleaning request signal and rotate the flow hole 122 to allow the wash liquid to be injected to a device corresponding to the received cleaning request signal. An engagement portion 150 at one end of the moving shaft assembly 120 is located at and engaged with the motor assembly 140, and the controller 200 is configured to control the amount of rotation of the motor assembly 140.

More preferably, the moving shaft assembly 120 includes a moving shaft 121 fluidly connected to the introduction portion 132 by passing through the distribution unit 131 and introducing the cleaning solution therein, and an engagement portion 150 at one end of the moving shaft 121.

The engaging portion 150 at one end of the moving shaft 121 includes a support 152, and the fixing pin 153 is located on one surface of the support 152. In addition, a stopper 154 that rotates integrally with the moving shaft 121 on the flat surface of the support 152 is configured to rotate coplanar with the engaging portion 150.

Therefore, in order to set the initial position, the stopper 154 is configured to be switched to a state of being in contact with the fixing pin 153 and then rotated by the motor assembly 140, thereby setting the initial position and the set position of the moving shaft assembly 120 or resetting the position of the moving shaft 121.

Fig. 4 is a sectional view illustrating a dispensing unit 131 of the cleaning solution dispensing apparatus 100 according to an embodiment of the present disclosure.

As shown in fig. 4, each of the distribution units 131 is configured to be located in the cover part 110 and to move together with the nozzle of the driving assist device, and the inside of the distribution unit 131 is configured to allow the movement shaft 121 to rotate.

The insertion portion 133 is located at an end of the dispensing unit 131 that engages an adjacent dispensing unit 131, and the hook-shaped projection 134 is provided at an end of the dispensing unit 131 adjacent to the insertion portion 133. In the present embodiment according to the present disclosure, since five dispensing units 131 are engaged with the dispensing unit 131 adjacent thereto, the insertion part 133 is inserted into and positioned in the hook protrusion 134.

Sealing portions are included between the distribution units 131 and between the insertion portions 133 and the hook protrusions 134. Each sealing portion may comprise an O-ring located in one of the two adjacent dispensing units 131 and an X-ring located in the other of the two adjacent dispensing units 131.

Each dispensing unit 131 may be configured to engage an adjacent dispensing unit 131. In one embodiment of the invention, an engaged configuration of five dispensing units 131 including dispensing apertures is shown. However, the number of the distribution units 131 may vary, and the size of the cover part 110 may be determined according to the varied number of the distribution units 131.

Fig. 5 shows the configuration of the engagement portion 150 located at one end of the moving shaft assembly 120 to rotate the moving shaft 121 and the configuration of the motor assembly 140 interlocked with the engagement portion 150.

The engaging portion 150 includes a support 152 at one end of the engaging portion 150 to allow the moving shaft 121 to rotate, and a gear 151 and a stopper 154 passing through the support 152 and located at the distal end of the moving shaft 121.

The support 152 includes a planar member configured to secure the motor, and the motor assembly 140 is configured to engage the planar member. In addition, a gear 151 is included on one surface of the support 152 in which the motor assembly 140 is located, such that the gear 151 is engaged with the motor assembly 140, so as to allow the rotational force of the motor assembly 140 to be applied thereto.

One surface of the support 152 through which the moving shaft 121 passes is configured to include a fixing pin 153. More preferably, the fixing pin 153 is configured to be located on a flat surface coplanar with a stopper 154 configured to rotate integrally with the moving shaft 121.

Accordingly, the controller 200 is configured to control the voltage applied to the motor assembly 140 to rotate the stopper 154. Therefore, the position where the stopper 154 contacts the fixing pin 153 is set as the initial position of the moving shaft 121. When there is a voltage variation value applied to the motor assembly 140 or the washing pump 300, the controller 200 is configured to determine that the washing liquid dispensing apparatus 100 is out of order, and switch to an initial position where the stopper 154 is in contact with the fixing pin 153, thereby resetting the position of the moving shaft 121.

The present disclosure can obtain the following effects according to the combination of the above-described embodiments and the configurations and use relationships to be described below.

The present disclosure has the effect of configuring a plurality of dispensing units and controlling selective positions of the moving shaft such that the cleaning liquid is injected into the respective branches by the driving of the motor assembly.

The foregoing detailed description illustrates the present disclosure. Moreover, the foregoing is intended to illustrate and describe exemplary embodiments of the present disclosure, and the present disclosure may be used in various other combinations, modifications, and environments. That is, the present disclosure may be substituted or modified without departing from the scope of the present disclosure disclosed in the specification, equivalents, and/or the technical or knowledge range of the technical field to which the present disclosure pertains. The described embodiments are intended to explain the best mode for carrying out the technical spirit of the disclosure and may be subject to various modifications as may be necessary for the particular application and uses of the disclosure. Therefore, the detailed description is not intended to limit the disclosure to the embodiments as disclosed. Furthermore, it is to be understood that the appended claims are intended to cover other embodiments.