Device for dispensing a cleaning fluid

Abstract

A device for dispensing cleaning solution includes a cover into which cleaning solution is introduced, a moving shaft assembly within the cover, a motor assembly at one end of the moving shaft assembly and configured to rotate the moving shaft assembly, a flow hole in the moving shaft assembly, a plurality of dispensing units positioned corresponding to the flow hole, and a controller configured to control an amount of rotation of the motor assembly configured to selectively discharge the cleaning solution introduced into the one or more flow holes to the plurality of dispensing units.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to an apparatus for dispensing a washing liquid, and more particularly, to an apparatus for dispensing a washing liquid, which includes a plurality of dispensing units sequentially coupled, and performs control of a motor assembly that rotates a moving shaft assembly, thereby dispensing a washing liquid. BACKGROUND

[0002] Conventionally, a washing pump system is installed on a vehicle to selectively supply a washing liquid in a washing liquid tank to a front windshield or a rear windshield.

[0003] Since the surface of the windshield is often contaminated by foreign substances such as dust, in order to sufficiently secure a front view and achieve safe operation, foreign substances such as dust on the surface of the windshield should be removed.

[0004] As described above, in order to remove foreign substances, etc. on the windshield of the vehicle, the vehicle is provided with a washing nozzle for spraying a washing liquid and a wiper system.

[0005] Therefore, when the driver operates a washing switch installed in the driver's seat in order to make the view clear, the washing motor is operated together with the washing switch, and due to the operation of the washing motor, the washing liquid stored in the washing liquid storage tank is sprayed to the windshield through the washing nozzle. The foreign substances that obstruct driving are removed by the sprayed washing liquid and the wiper operation, so that the driver can safely drive in a state of securing the view.

[0006] However, in recent years, when contaminants are attached to various devices (for example, a camera, a radio detection and ranging device (RADAR), a light detection and ranging device (LiDAR), etc.) coupled to the outer side of a vehicle for autonomous driving, 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.

[0007] Therefore, there is a need for an apparatus for dispensing a washing liquid to be sprayed to various positions. SUMMARY

[0008] In one aspect, the present disclosure provides an apparatus for dispensing a washing liquid, which includes a plurality of flow paths through a single washing pump.

[0009] In another aspect, the present disclosure provides an apparatus for dispensing a washing liquid, which includes 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.

[0010] The purpose of this disclosure is not limited to the objectives described above. Other objectives not mentioned in this disclosure may be understood through the following description and will also become apparent from the embodiments of this disclosure. Furthermore, the objectives of this disclosure may be achieved by means described in the appended claims and combinations thereof.

[0011] In one exemplary embodiment, this disclosure provides an apparatus for dispensing washer fluid to a vehicle windshield, the apparatus comprising: a cover into which washer fluid is introduced; a movable shaft assembly located within the cover; a motor assembly located at one end of the movable shaft assembly and configured to rotate the movable shaft assembly; one or more flow orifices located within the movable shaft assembly; a plurality of dispensing units positioned corresponding to the one or more flow orifices; and a controller configured to control the amount of rotation of the motor assembly, the motor assembly being configured to selectively discharge washer fluid introduced into the one or more flow orifices to the plurality of dispensing units.

[0012] In addition, the one or more flow holes may correspond in number to the plurality of dispensing units, and the one or more flow holes may be spaced apart at the same angle based on the diameter of the moving shaft assembly.

[0013] Additionally, the moving shaft assembly may include an inlet portion that extends outward from the cover and into which cleaning fluid is introduced.

[0014] Additionally, the moving shaft assembly may include: a tubular moving shaft into which cleaning fluid is introduced; and a coupling portion disposed at one end of the moving shaft and engaging with the motor assembly.

[0015] Additionally, each of the plurality of dispensing units may include: a housing including a through-hole configured to allow the moving shaft assembly to pass through; a discharge nozzle configured to allow the discharge of the introduced cleaning fluid; and a sealing portion configured to surround the through-hole.

[0016] Additionally, the controller can receive cleaning request signals from the vehicle and rotate the moving shaft assembly so that the flow holes can correspond to the dispensing units corresponding to the request signals.

[0017] Additionally, cleaning request signals can be received from driver assistance devices located outside the vehicle.

[0018] In addition, driver assistance devices may include one or more of cameras, LiDAR, RADAR, and camera monitoring systems.

[0019] Additionally, the device may include: a retaining pin located at one end of the dispensing unit near the drive component; and a stop located at one end of the moving shaft assembly adjacent to the drive component.

[0020] In addition, the controller can be configured to set an initial position at which the stopper contacts the fixing pin.

[0021] In addition, when receiving a cleaning request of a plurality of driving assistance devices, the controller can be configured to clean in advance a driving assistance device necessary for a driving condition of the vehicle.

[0022] Other aspects and preferred embodiments of the present disclosure are discussed below. BRIEF DESCRIPTION OF DRAWINGS

[0023] The above and other features of the present disclosure will now be described in detail with reference to certain exemplary embodiments of the present disclosure illustrated in the accompanying drawings, which are given by way of example only and thus are not limiting of the present disclosure, and wherein:

[0024] Figure 1 is a block diagram illustrating a system including a device for dispensing cleaning fluid according to an embodiment of the present disclosure;

[0025] Figure 2 is a structural diagram illustrating a device for dispensing cleaning fluid according to an embodiment of the present disclosure;

[0026] Figure 3 is a perspective view illustrating a driving relationship of a device for dispensing cleaning fluid according to another embodiment of the present disclosure;

[0027] Figure 4 is a sectional view illustrating a coupling relationship between dispensing units of a device for dispensing cleaning fluid according to an embodiment of the present disclosure; and

[0028] Figure 5 is an enlarged view illustrating a driving part of a device for dispensing cleaning fluid according to an embodiment of the present disclosure.

[0029] It is to be understood that the drawings are not necessarily to scale, as the emphasis lies in the illustrative rather than in the precise dimensions and proportions. 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 particular intended application and use environment.

[0030] In the drawings, in several of the figures of the drawings, reference numerals refer to the same or equivalent parts of the present disclosure. DETAILED DESCRIPTION

[0031] It should be understood that the term "vehicle" or "vehicle's" or other similar terms as used herein include general motor vehicles such as passenger cars (including sport utility vehicles (SUVs), public vehicles, trucks, various commercial vehicles), watercraft (including various boats and ships), aircraft, etc., 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 a gasoline powered and electric vehicle.

[0032] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present 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 description, unless explicitly described as being the reverse, the word "comprise" and variations such as "comprises" or "comprising" will be understood to mean the inclusion of the stated elements but not the exclusion of any other elements. In addition, the terms "unit", "-device", "-component", and "module" described in the specification mean a unit for processing at least one function and operation, and can be implemented by hardware components or software components and combinations thereof.

[0033] Further, the control logic of the present disclosure can be implemented 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 the computer readable medium include, but are not limited to, ROM, RAM, compact disc (CD)-ROM, tape, floppy disk, flash memory, smart card, and optical data storage device. The computer readable recording medium can also be distributed over network coupled computer systems so that the computer readable medium is stored in a distributed fashion throughout the system, for example, over a telecommunications network or a controller area network (CAN).

[0034] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. Embodiments of the present disclosure can 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 present disclosure to those skilled in the art.

[0035] Also, 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.

[0036] The present disclosure relates to a cleaning fluid dispensing apparatus 100, and provides a technology for dispensing a cleaning fluid to various driving assistance apparatuses located outside a vehicle and contaminated by contaminants.

[0037] The driving assistance apparatuses located outside the vehicle can include a camera 420 or a camera monitoring system for providing one or more of front, rear, and side images of the vehicle, and a light detection and ranging (LiDAR) 430 and a radio detection and ranging (RADAR) 410 for receiving driving information.

[0038] More preferably, for example, the LiDAR 430 that receives driving information of the vehicle to perform autonomous driving is connected to a LiDAR device as a sensor. The LiDAR device can include a laser transmission module, a laser detection module, a signal collection and processing module, and a data transmission / reception module. A laser source having a wavelength in a wavelength range of 250 nm to 11 μm or capable of changing its wavelength is used. Also, according to a signal modulation method, the LiDAR device is classified into a time-of-flight (TOF) type LiDAR device and a phase shift type LiDAR device.

[0039] The LiDAR 430 controls the LiDAR device and other devices connected to the LiDAR device (for example, a LiDAR processor (not shown) for processing LiDAR sensing output). For example, such control includes power supply control, reset control, clock (CLK) control, data communication control, memory control, and the like. At the same time, the LiDAR device is used to sense a front area of the vehicle. Such a LiDAR device is located on a front surface inside the vehicle, specifically, below a front windshield to emit and receive laser light through the front windshield.

[0040] In addition, for example, the RADAR 410 is connected to a RADAR device as a sensor. The RADAR device is a sensor device for measuring distance, speed, and angle of an object using electromagnetic waves. When the RADAR device is used, a frequency-modulated carrier wave (FMCW) method or a pulse carrier wave method can be used to detect an object located in front of a vehicle in a range of up to 150 m in distance and 30 degrees in horizontal angle. The RADAR 410 controls the RADAR device and other devices connected to the RADAR device (for example, a RADAR processor (not shown) for processing RADAR sensing output).

[0041] 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, it is not possible to receive driving environment information in the autonomous driving condition of the vehicle, and a structure capable of spraying a cleaning liquid onto each device is indispensably required.

[0042] In addition, the present disclosure provides a cleaning liquid dispensing device 100 for selectively spraying a cleaning liquid to a plurality of paths through a single dispensing device.

[0043] Figure 1 and Figure 2 are a block diagram and a structural diagram showing the cleaning liquid dispensing device 100 according to the present disclosure.

[0044] As Figure 1 and Figure 2 The cleaning liquid dispensing device 100 includes a cover portion 110 which accommodates a combination of one or more dispensing units 131, and is configured to be fluidly connected with the dispensing units 131 to selectively spray a cleaning liquid to each device. More preferably, the cover portion 110 includes an upper cover 110a and a lower cover 110b, and is configured to accommodate the dispensing units 131, a moving shaft assembly 120, and a motor assembly 140.

[0045] 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 a cleaning liquid spray in response to a request signal received by a controller 200.

[0046] Each dispensing unit 131 including a hollow portion is positioned, and a moving shaft assembly 120 located in the hollow portion is provided. An introduction portion 132 is configured to protrude to the outside of the cover portion 110 at one end of the moving shaft assembly 120 so as to introduce a cleaning liquid into the introduction portion, and the moving shaft assembly 120 includes flow holes 122 corresponding to the number of the dispensing units 131 so as to allow a cleaning liquid introduced in the length direction of the moving shaft assembly 120 to be selectively moved through each dispensing unit 131.

[0047] The introduction portion 132 is a component fluidly connected to the moving shaft assembly 120, and can be formed coaxially with the moving shaft 121, but includes all forms fluidly connectable.

[0048] Each flow hole 122 can be selectively switched to a position corresponding to each dispensing 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 a predetermined interval in the length direction of the moving shaft assembly 120. In one embodiment according to the present disclosure, the cleaning liquid dispensing device 100 formed of six dispensing units 131 includes the 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 the center axis of the moving shaft 121.

[0049] 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 dispensing unit 131 of the fluid connected to the driving assistance device in need of cleaning is positioned to face each other with the flow hole 122. Accordingly, the cleaning liquid introduced through the introduction portion 132 is discharged through the selected dispensing unit 131.

[0050] When receiving a plurality of cleaning requests regarding the driving assistance device, the controller 200 is configured to pre-dispense the cleaning liquid to the corresponding dispensing unit 131 to mitigate the driving risk. In one embodiment of the present disclosure, the cleaning liquid dispensing device 100 can be controlled such that the cleaning liquid is preferentially dispensed to the RADAR 410 and the LiDAR 430 in an autonomous driving environment of the vehicle, and the cleaning liquid is preferentially dispensed to the camera monitoring system and the windshield in a manual driving mode.

[0051] That is, the controller 200 is controlled to determine the driving condition of the vehicle and to pre-perform cleaning of such a driving assistance device that can be used to determine the driving condition.

[0052] The introduction portion 132 located at the other end of the moving shaft assembly 120 is configured to be fluidly connected to the cleaning liquid reservoir 310 (not shown), and to allow the cleaning liquid to be introduced into the introduction portion 132 through the cleaning pump 300 between the cleaning liquid reservoir 310 and the introduction portion 132.

[0053] Since the dispensing units 131 are configured to be positioned adjacent to each other in the cover portion 110 and engaged with each other, the number of dispensing units 131 can be set according to the user's selection. The dispensing unit 131 includes an insertion portion 133 configured to be inserted into the dispensing unit 131 adjacent thereto, and a hook groove located in the adjacent dispensing unit 131 to fix the insertion portion 133.

[0054] Accordingly, the engagement between the insertion portion 133 and the hook groove is formed between two adjacent distribution units 131, such that the two adjacent distribution units 131 are configured to be fixed to each other. In addition, a sealing portion can be included between the insertion portion 133 and the hook groove, such that water leakage generated by the coupling between the distribution units 131 can be prevented.

[0055] The sealing portion according to the disclosure can include an O-ring located on one surface of the distribution unit 131 and an X-ring located on the other surface thereof, and is configured to seal both sides of the distribution unit 131. Accordingly, the washing liquid introduced through the introduction portion 132 can be discharged to the discharge hole of the distribution unit 131 corresponding to the flow hole 122.

[0056] The controller 200 can measure the current value applied to the washing pump 300 and the motor assembly 140 and the period of time to which the current is applied, and receive an ambient temperature value from the temperature sensor located in the washing liquid distribution device 100.

[0057] In addition, in the autonomous driving condition of the vehicle, the controller 200 can receive a cleaning request signal regarding the camera 420, the camera monitoring system, the LiDAR 430, the RADAR 410, etc. 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 can be controlled to automatically spray the washing liquid to the corresponding device.

[0058] In addition, the controller 200 is configured to receive rotation information regarding the movement shaft assembly 120 and to set the initial position of the movement shaft assembly 120. Upon setting the initial position of the movement shaft assembly 120, the controller 200 is configured to first rotate the stopper 154 located in the engagement portion 150 to a set position, and then rotate the stopper 154 to a position corresponding to the distribution unit 131 located at the center portion among the plurality of distribution units 131. That is, the initial position of the movement shaft 121 can be set to a position corresponding to the distribution unit 131 located at the center portion.

[0059] More preferably, the engagement 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, allow the stopper 154 to be rotated and moved on a flat surface, and set the initial position of the stopper 154.

[0060] Accordingly, when the stopper 154 of the motor assembly 140 is rotated, the movement shaft assembly 120 engaged with one end of the motor assembly 140 is configured to be integrally rotated.

[0061] Further, through the temperature sensor located in the cleaning solution dispensing apparatus 100, the controller 200 can be configured to compensate for the current value applied to the motor assembly 140 and the cleaning pump 300 and the time period for which the current value is applied according to the change in the temperature condition.

[0062] As described above, since the compensation for the current value and the time period for which the current value is applied is performed in response to the change in the temperature condition, the revolutions per minute and the torque value of the cleaning pump 300 are maintained constant, so that the discharge pressure of the cleaning solution introduced through the introduction part 132 is not changed.

[0063] In addition, even when the ambient temperature of the cleaning solution dispensing apparatus 100 changes, the pulse voltage and the time applied through the motor assembly 140 are compensated for, so that the amount of rotation of the moving shaft assembly 120 can be maintained constant.

[0064] The moving shaft assembly 120 rotates in the clockwise direction or the counterclockwise direction based on its initial position, so that the selected dispensing unit 131 and the flow hole 122 corresponding thereto face each other.

[0065] 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 dispensing unit 131 located near the center portion among the dispensing units 131 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 at which the fixing pin 153 comes into contact with the stopper 154.

[0066] As described above, since the initial position of the moving shaft assembly 120 is located at a position corresponding to the dispensing unit 131 near the center of the moving shaft assembly 120 in the length direction, it is configured to minimize the delay time caused by the rotation of the moving shaft assembly 120 according to the bidirectional rotation of the motor assembly 140.

[0067] 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 start is turned on or power is applied, and thus the motor assembly 140 applies pulse power to move the moving shaft assembly 120 from the set position to the initial position.

[0068] In order to rotate the moving shaft assembly 120 from the set position to the initial position, the controller 200 is configured to store the number of pulse power applied from the motor assembly 140 and the time for which it is applied.

[0069] In a state in which the current is applied from the controller 200 to the motor assembly 140, the controller 200 is configured to measure the rate of change of the current of the cleaning pump 300. Accordingly, the controller 200 is configured to determine whether the cleaning liquid dispensing device 100 is malfunctioning. The rate of change of the current of the cleaning pump 300 to be measured is a concept including both the applied current value and the time period of the applied current value.

[0070] When the current applied to the cleaning pump 300 or the motor assembly 140 increases as it is introduced into the cleaning liquid dispensing device 100, the controller 200 determines that the cleaning liquid dispensing device 100 is malfunctioning. In addition, when malfunctioning occurs, the controller 200 resets the moving shaft assembly 120 from the set position to the initial position and reattempts to discharge the cleaning liquid to the same dispensing unit 131. In a state in which the reattempt to discharge the cleaning liquid is made, 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 a protection mode (power off) to interrupt the driving of the motor assembly 140 and is configured to transmit the malfunction to the user.

[0071] Figure 3 A cleaning liquid dispensing device 100 according to another embodiment of the disclosure is illustrated.

[0072] As Figure 3 illustrated, the cleaning liquid dispensing device 100 includes an introduction portion 132 positioned to protrude outward from the cover portion 110 and is fluidly connected to the cleaning liquid reservoir 310 to allow the cleaning liquid compressed by the cleaning pump 300 to be introduced into the cleaning liquid dispensing device 100.

[0073] In addition, according to one embodiment of the disclosure, four different dispensing units 131 are included and are configured such that the cleaning liquid is discharged through at least one dispensing unit 131 among the four different dispensing units 131 according to the amount of rotation of the moving shaft assembly 120.

[0074] The controller 200 is configured to receive a cleaning request signal and rotate the flow hole 122 to allow the cleaning liquid to be sprayed to a device corresponding to the received cleaning request signal. The engagement portion 150 located 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.

[0075] More preferably, the moving shaft assembly 120 includes a moving shaft 121 fluidly connected to the introduction portion 132 by passing through the dispensing unit 131 and introducing the cleaning liquid therein, and an engagement portion 150 located at one end of the moving shaft 121.

[0076] The engagement portion 150 located at one end of the moving shaft 121 includes a support member 152, and a retaining pin 153 is located on one surface of the support member 152. In addition, a stop member 154, which rotates integrally with the moving shaft 121 on the flat surface of the support member 152, is configured to rotate coplanarly with the engagement portion 150.

[0077] Therefore, in order to set the initial position, the stop 154 ​​is configured to switch to a state of contact with the fixed pin 153, and then the motor assembly 140 is rotated to set the initial position and set position of the moving shaft assembly 120, or to reset the position of the moving shaft 121.

[0078] Figure 4 This is a cross-sectional view showing the dispensing unit 131 of a cleaning fluid dispensing device 100 according to one embodiment of the present disclosure.

[0079] like Figure 4 As shown, each dispensing unit 131 is configured to be located in the cover 110 and move together with the nozzle of the driving assistance device, and the interior of the dispensing unit 131 is configured to allow the moving shaft 121 to rotate.

[0080] The insertion portion 133 is located at the end of the dispensing unit 131 that engages with the adjacent dispensing unit 131, and the hook-shaped protrusion 134 is provided at the end of the dispensing unit 131 adjacent to the insertion portion 133. In this embodiment according to the present disclosure, since five dispensing units 131 engage with and are adjacent to the dispensing units 131, the insertion portion 133 is inserted into and located in the hook-shaped protrusion 134.

[0081] Sealing portions are included between the dispensing units 131 and between the insertion portion 133 and the hook protrusion 134. Each sealing portion may include 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.

[0082] Each dispensing unit 131 can be configured to engage with an adjacent dispensing unit 131. In one embodiment of the invention, an engagement configuration of five dispensing units 131 including dispensing holes is shown. However, the number of dispensing units 131 can be varied, and the size of the cover 110 can be determined based on the varying number of dispensing units 131.

[0083] Figure 5 The arrangement of the engagement portion 150 located at one end of the moving shaft assembly 120 to rotate the moving shaft 121 is shown, as well as the arrangement of the motor assembly 140 interlocked with the engagement portion 150.

[0084] The coupling portion 150 includes a support 152 located at one end of the coupling portion 150 to allow the rotation of the moving shaft 121, and a gear 151 and a stopper 154 passing through the support 152 and located at a distal end of the moving shaft 121.

[0085] The support 152 includes a flat member configured to fix the motor, and the motor assembly 140 is configured to be engaged with the flat member. In addition, the 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 in order to allow the rotational force of the motor assembly 140 to be applied thereto.

[0086] 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 that is coplanar with the stopper 154, which is configured to rotate integrally with the moving shaft 121.

[0087] Accordingly, the controller 200 is configured to control the voltage applied to the motor assembly 140 to rotate the stopper 154. Accordingly, the position at which the stopper 154 comes into contact with the fixing pin 153 is set as the initial position of the moving shaft 121. When there is a change in the voltage applied to the motor assembly 140 or the cleaning pump 300, the controller 200 is configured to determine that the cleaning liquid dispensing device 100 has failed, and to switch to the initial position at which the stopper 154 comes into contact with the fixing pin 153, thereby resetting the position of the moving shaft 121.

[0088] The present disclosure can achieve the following effects according to the above-described embodiments and combinations of configurations and use relationships to be described below.

[0089] The present disclosure has an effect of configuring a plurality of dispensing units and controlling the selective position of the moving shaft so that the cleaning liquid is sprayed into each branch by the driving of the motor assembly.

[0090] The foregoing detailed description illustrates the disclosure. In addition, the foregoing is intended to explain and describe illustrative embodiments of the disclosure, and the disclosure can be used in various other combinations, modifications, and environments. That is, the disclosure can be substituted or modified without departing from the scope of the disclosure disclosed in the specification, equivalents, and / or the range of technology or knowledge of the technical field to which the disclosure belongs. The described embodiments are intended to illustrate the best mode for carrying out the technical spirit of the disclosure, and various necessary modifications can be made in the specific application and use of the disclosure. Therefore, the detailed description is not intended to limit the disclosure as in the disclosed embodiments. In addition, it should be understood that the appended claims are intended to include other embodiments.

Claims

1. An apparatus for dispensing washer fluid to the windshield of a vehicle, the apparatus comprising: The cleaning fluid is introduced into the cover. A movable shaft assembly with a movable shaft is located inside the cover portion; A motor assembly is located at one end of the moving shaft assembly and configured to rotate the moving shaft assembly; Flow holes are located in the moving shaft assembly; Multiple distribution units are positioned to correspond to the flow holes; A controller is configured to control the amount of rotation of the motor assembly, the motor assembly being configured to selectively discharge cleaning fluid introduced into the flow orifice to a plurality of the distribution units; A connecting portion is disposed at one end of the moving shaft and engages with the motor assembly; A retaining pin is located at the engagement portion; as well as A stop is located at one end of the moving shaft adjacent to the engagement portion; The controller is configured to set an initial position, at which the stop member contacts the fixing pin.

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

3. The apparatus according to claim 1, wherein, The movable shaft assembly also includes an inlet portion that extends outward from the cover portion, into which cleaning fluid is introduced.

4. The apparatus according to claim 1, wherein, The moving shaft is a tubular moving shaft, and the cleaning fluid is introduced into the moving shaft.

5. The apparatus according to claim 1, wherein, Each of the plurality of allocation units includes: The housing includes a through-hole configured to allow the moving shaft assembly to pass through; A discharge nozzle configured to allow the discharge of the introduced cleaning fluid; and The sealing portion is configured to surround the through hole.

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

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

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

9. The apparatus according to claim 1, wherein, When multiple cleaning requests for driver assistance devices are received, the controller is configured to pre-clean the driver assistance devices necessary for the vehicle's driving conditions.

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