CN117307805A - Actuator of cooling water control valve for vehicle - Google Patents
Actuator of cooling water control valve for vehicle Download PDFInfo
- Publication number
- CN117307805A CN117307805A CN202210711420.5A CN202210711420A CN117307805A CN 117307805 A CN117307805 A CN 117307805A CN 202210711420 A CN202210711420 A CN 202210711420A CN 117307805 A CN117307805 A CN 117307805A
- Authority
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- China
- Prior art keywords
- control valve
- output gear
- output
- actuator
- cooling water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000000498 cooling water Substances 0.000 title claims abstract description 37
- 238000001514 detection method Methods 0.000 claims abstract description 40
- 238000001914 filtration Methods 0.000 claims abstract description 6
- 230000005540 biological transmission Effects 0.000 claims description 34
- 239000000463 material Substances 0.000 claims description 14
- 239000002826 coolant Substances 0.000 claims description 11
- 239000000758 substrate Substances 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 description 6
- 230000004048 modification Effects 0.000 description 6
- 230000001965 increasing effect Effects 0.000 description 4
- 230000001939 inductive effect Effects 0.000 description 4
- 239000007769 metal material Substances 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 239000000470 constituent Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 241001272720 Medialuna californiensis Species 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0025—Electrical or magnetic means
- F16K37/0041—Electrical or magnetic means for measuring valve parameters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P7/00—Controlling of coolant flow
- F01P7/14—Controlling of coolant flow the coolant being liquid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/32—Correcting- or balancing-weights or equivalent means for balancing rotating bodies, e.g. vehicle wheels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/17—Toothed wheels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/53—Mechanical actuating means with toothed gearing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P7/00—Controlling of coolant flow
- F01P7/14—Controlling of coolant flow the coolant being liquid
- F01P2007/146—Controlling of coolant flow the coolant being liquid using valves
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Gear Transmission (AREA)
Abstract
The actuator of the cooling water control valve for a vehicle disclosed by the invention comprises: a driving section for generating a driving force; an output unit for driving a control valve that selectively opens or blocks a flow of cooling water for a vehicle by a driving force supplied from the driving unit; and a detection unit for detecting an output state of the output unit, wherein the detection unit is provided with a position sensor for detecting a position of the output unit and an electromagnetic compatibility filter for filtering electromagnetic compatibility (EMC, electro Magnetic Compatibility). Because the structure enables one printed circuit board to have the functions related to the electromagnetic compatibility substrate and the functions related to the sensor substrate, the structure is beneficial to ensuring the space and the design freedom degree and improving the control quality.
Description
Technical Field
The present invention relates to an actuator for a coolant control valve for a vehicle, and more particularly, to an actuator for a coolant control valve for a vehicle, which is advantageous in ensuring space and design freedom because output performance control and ground connection to constituent elements can be achieved together by one control board.
Background
A vehicle driven by an engine as an internal combustion engine is internally mounted with various types of valves. Such valves may distribute, control or regulate various types of fluid flow for purposes such as cooling of an engine, cooling and heating of an indoor space, recycling of Exhaust Gas (EGR), and the like. In particular, the control valve mounted on the vehicle may be a multi-function valve for controlling the flow of cooling water circulating inside and outside the engine in multiple directions.
In order to switch the direction of the cooling water or adjust the flow rate, a control valve mounted on the vehicle may be applied as one of proximity sensors for detecting the related operation of the control valve, i.e., an Inductive Sensor (Inductive Sensor). The inductive sensor can detect the output state of the actuator in real time by linking with the output shaft of the actuator connected with the control valve.
On the other hand, in order to detect and control the operation of the control valve, a printed circuit board connected to the inductive sensor needs to be provided separately from an electromagnetic compatibility substrate of the motor, and thus, there is a limit in terms of design. Therefore, research is being conducted to improve the degree of freedom of design while improving the output control performance of the control valve.
Prior art literature
Patent literature
Korean laid-open patent publication No. 10-2017-0136506
Korean patent publication No. 10-1500391
Disclosure of Invention
Technical problem
The present invention aims to provide an actuator for a cooling water control valve for a vehicle, which can improve control efficiency by ensuring space and design freedom of a plurality of structural elements for controlling the flow of cooling water.
It is still another object of the present invention to provide an actuator for a coolant control valve for a vehicle, which can prevent an output imbalance due to a detection structure by detecting the output of the actuator, thereby ensuring uniform detection sensitivity.
Technical proposal
In order to achieve the above object, an actuator for a cooling water control valve for a vehicle according to the present invention includes: a driving section for generating a driving force; an output unit configured to drive a control valve that selectively opens or blocks a flow of cooling water for a vehicle by a driving force supplied from the driving unit; and a detection unit configured to detect an output state of the output unit, wherein the detection unit is provided with a position sensor configured to detect a position of the output unit and an electromagnetic compatibility filter configured to filter electromagnetic compatibility (EMC, electro Magnetic Compatibility).
The driving unit may include: a driving source having a cylindrical shape and adjacent to the detecting section; and at least one transmission gear connected to the drive source for transmitting the drive force to the output portion at a reduced speed.
The driving source is supported by a ground plate having a circular arc shape, and when the driving source is pressed against the ground plate, the ground plate has at least two ground contacts, and one side of the ground plate may be grounded to the detection unit.
The output unit includes an output gear that rotates around an output shaft by a driving force of the driving unit, and one side of the output shaft is fixed to a center of the position sensor by a fixing pin, and the other side of the output shaft is connectable to the control valve.
The output unit includes: an output gear which rotates around an output shaft by a driving force of the driving unit; and an interference member facing the detection unit and partially covering one surface of the output gear, wherein the output gear and the interference member are made of different materials in conjunction with rotation of the output gear.
Further, at least one balance member may be provided on the output gear to compensate for mass unbalance between an interference region of the output gear where the interference member is provided and a non-interference region where the interference member is not provided.
The output gear is made of a plastic material, the interference member is provided on one surface of the output gear so as to cover a partial area on one side, and at least one balance member for compensating a difference in mass between a mass of the output gear on which the interference member is provided and a mass of the output gear on which the interference member is not provided is provided on the other side of the output gear.
The balance member may include a plurality of ribs extending in a diametrical direction adjacent to each other on the other side of the output gear where the interference member is not provided.
The balance member may include a plurality of ribs extending in a diametrical direction on the other side of one surface of the output gear so as to be adjacent to the interference member.
The output gear is made of a plastic material, the interference member is provided on one surface of the output gear so as to cover a partial area on one side, and the balance member may be provided on one surface or the other surface of the output gear, and the balance member may be provided on a side overlapping the interference member in a groove shape recessed by a predetermined depth.
The balance member may extend in a circumferential direction overlapping the interference member.
The detection unit includes a printed circuit board, the position sensor and the electromagnetic compatibility filter are provided, and the driving source is connected to the printed circuit board via a contact line and can be connected to an external power source.
An actuator of a cooling water control valve for a vehicle according to a preferred embodiment of the present invention is for controlling a flow of cooling water, and includes: a driving section for generating a driving force; an output unit connected to the driving unit and configured to drive the control valve by the driving force; and a detection section including a printed circuit board for detecting an output state of the output section, wherein in the detection section, a position sensor for detecting the output section and an electromagnetic compatibility filter for filtering electromagnetic compatibility (EMC, electro Magnetic Compatibility) share one of the printed circuit boards.
The driving unit includes: a driving source adjacent to the printed circuit board in such a manner as to be electrically connected thereto, for generating a driving force; and at least one transmission gear connected to the driving source for transmitting the driving force to the output portion in a decelerating manner, the driving source being connected to the printed circuit board via a contact line and connected to an external power source.
The driving source is supported by a ground plate having a circular arc shape, and when the driving source is pressed against the ground plate, the ground plate has at least two ground contacts, and one side of the ground plate is connected to the printed circuit board.
The output unit includes: an output gear which rotates around an output shaft by a driving force of the driving unit; and an interference member partially covering one surface of the output gear and facing the printed circuit board, and coupled with rotation of the output gear, wherein the output gear and the interference member may be made of different materials.
One side of the output shaft is fixed to the center of the position sensor by a fixing pin, and the other side thereof may be connected to the control valve.
The output gear is made of a plastic material, the interference member is provided on one surface of the output gear so as to cover a partial area on one side, and at least one balance member for compensating for mass unbalance between an interference area of the output gear where the interference member is provided and a non-interference area where the interference member is not provided may be provided on the output gear.
The balance member may include a plurality of ribs extending in a diametrical direction adjacent to each other on the other side of the output gear where the interference member is not provided.
The balance member may include a plurality of ribs extending in a diametrical direction on the other side of one surface of the output gear so as to be adjacent to the interference member.
The balance member may be provided on one surface or the other surface of the output gear, and may be provided on a side overlapping the interference member in a groove shape recessed by a predetermined depth.
The balance member may extend in a circumferential direction overlapping the interference member.
ADVANTAGEOUS EFFECTS OF INVENTION
The present invention having the above-described structure has an effect that a position sensor for detecting an output portion and an electromagnetic compatibility filter for filtering electromagnetic compatibility can be shared by one printed circuit board, and therefore, space can be ensured and electromagnetic compatibility can be improved by simplifying components. As a result, the degree of freedom in selecting a plurality of components such as gears and motors can be increased, and thus, not only the space and the degree of freedom in design can be increased, but also the quality of control accuracy can be ensured.
Further, since the balance member is provided in the output portion, it is possible to improve a decrease in output performance due to a laterally asymmetric rotation by compensating for a rotation imbalance of the output portion due to a difference in mass of the interference member made of different materials. Thus, the control performance can be further improved by ensuring uniform sensitivity of the detection section for detecting the interference member provided at the output section.
Drawings
Fig. 1 is a perspective view schematically showing an actuator of a cooling water control valve for a vehicle according to a preferred embodiment of the present invention.
Fig. 2 is an exploded perspective view schematically showing an actuator of the cooling water control valve for a vehicle according to an embodiment shown in fig. 1.
Fig. 3 is a perspective view schematically showing a main part of the driving part and the detecting part shown in fig. 1 in a grounded state.
Fig. 4 is a plan view schematically showing the balance member provided in the output gear shown in fig. 1.
Fig. 5 is a plan view schematically showing a modification of the balance member shown in fig. 4.
Fig. 6 is a plan view schematically showing still another modification of the balance member shown in fig. 4.
(description of the reference numerals)
1: actuator 10 of cooling water control valve for vehicle: outer casing
20: the driving unit 21: driving source
21a: a drive shaft 22: supporting plate
23: ground plate 24: first transmission gear
25: second drive gear 26: third transmission gear
27: fourth drive gear 28: first transmission shaft
29: second drive shaft 30: output unit
31: output gear 31a: output shaft
32: interference members 33, 133, 233: balance component
40: detection unit 41: contact wire
Detailed Description
Hereinafter, a preferred embodiment of the present invention will be described with reference to the accompanying drawings. However, the present embodiment is not limited to the idea of the present invention, and the idea of the present invention may be different by adding, changing, deleting, and the like of the constituent elements constituting the embodiment, but it is also the idea of the present invention.
As shown in fig. 1 and 2, according to a preferred embodiment of the present invention, an actuator 1 of a cooling water control valve for a vehicle includes a driving portion 20, an output portion 30, and a detecting portion 40.
For reference, the driving unit 20, the output unit 30, and the detection unit 40 are provided inside the housing 10, and protected by a cover unit, not shown.
The driving unit 20 generates driving force for controlling the flow of the cooling water for the vehicle. For this purpose, the drive section 20 comprises a drive source 21 and at least one transmission gear 24, 25, 26, 27.
The drive source 21 includes a power generation unit, such as a motor, that rotates about a drive shaft 21 a. Such a driving source 21 has a cylindrical shape, can be supported by a support plate 22, and is provided in the housing 10. Also, it is preferable that the driving source 21 should be adjacent to the below-described detection portion 40 and filter electromagnetic compatibility (EMC).
As shown in fig. 2 and 3, the driving source 21 is supported by a ground plate 23 having a circular arc shape, and one side of the ground plate 23 is connected to a detection unit 40 described below. Among them, the ground plate 23 has a circular arc shape, and can be pressed against the outer surface of the driving source 21 having a cylindrical shape, so that a relatively wide contact area can be ensured.
Furthermore, as the ground plate 23 is elastically deformed by the pressure contact of the interlocking drive source 21, a contact point for grounding can be ensured at both side ends. That is, since the ground plate 23 has a circular arc shape, the ground quality of the leakage current can be improved by guiding the ground contact to at least two points.
As described above, if the contact property of the driving source 21 with the ground plate 23 is improved, the noise of the driving source 21 due to the electromagnetic control can be effectively removed by the grounding.
On the other hand, in the present embodiment, the description has been given taking as an example the transmission of the driving force of the driving source 21 to the below-described output section 30 through the first transmission gear 24 to the fourth transmission gear 27. However, the present embodiment is not limited to this, and various modifications may be realized in which less than four or five or more gears are provided between the drive source 21 and the output unit 30, and the drive force is transmitted at multiple steps of deceleration.
As shown in fig. 1, the first transmission gear 24 is connected to the drive shaft 21a of the drive source 21 through a gear, and rotates by the driving force of the drive source 21. The first transmission gear 24 rotates around the first transmission shaft 28, and the second transmission gear 25 rotates by being coaxially connected to the first transmission shaft 28. In this case, since the diameter of the second transmission gear 25 is smaller than that of the first transmission gear 24, the driving force of the driving source 21 may be weakened.
The second transmission gear 25 is engaged with the second transmission gear 26 through gear teeth, and transmits the rotational force of the second transmission gear 26 to the third transmission gear 26. The third transmission gear 26 rotates around the second transmission shaft 29, and the fourth transmission gear 27 is coaxially provided on the second transmission shaft 29 and rotates. Thereby, the fourth transmission gear 27 rotates by the rotational force of the third transmission gear 26, and the fourth transmission gear 27 meshes with an output unit 30 described below and finally transmits the rotational force. In this case, since the diameter of the fourth transmission gear 27 is smaller than that of the third transmission gear 26, the driving force of the driving source 21 is again reduced.
As described above, as the driving force of the driving source 21 is decelerated in a plurality of stages by the first to fourth transmission gears 24 to 27, it is finally transmitted to the output section 30 described below.
The output unit 30 is configured to drive a control valve (not shown) that selectively opens or blocks the flow of the vehicle cooling water by the driving force supplied from the driving unit 20. Wherein the output section 30 sequentially receives the driving force of the driving source 21 through the first to fourth transmission gears 24 to 27. Such an output section 30 includes an output gear 31 and an interference member 32.
The output gear 31 rotates around the output shaft 31a by the driving force of the driving unit 20. The output gear 31 rotates around the output shaft 31a, and gear teeth meshing with the fourth output gear 31 are formed on the outer peripheral surface.
For reference, one side of the output shaft 31a of the output gear 31 may be supported by a detection unit 40 described below, and the other side may be connected to a control valve (not shown) via a shaft, and output a driving force to the control valve (not shown).
The interference member 32 is provided on one surface of the output gear 31 so as to cover at least a partial area, and is linked with the rotation of the output gear 31. As the interlocking output gear 31 rotates together, the interference member 32 is detected by a detection unit 40 described below. In the following, in describing the relevant structure of the detecting section 40, the detection of such an interference member 32 by the detecting section 40 will be described in further detail.
On the other hand, as shown in fig. 2, the interference member 32 is a metal plate in a half-moon shape. Such an interference member 32 is provided on one face of the output gear 31 in such a manner as to cover a partial region, and increases the partial region-related mass of the output gear 31 based on the characteristics of the metallic material.
More specifically, the output gear 31 made of plastic material has an overall mass of about 11.6g and a density of about 1460kg/m 3 Also, the volume may be about 7.964e-6m 3 . The overall mass of the half moon-shaped interference member 32 made of a metal material including Stainless steel (SUS) was about 3.2g, and the density was about 7900kg/m 3 And, the volume may be about 4.018e-7m 3 . Thus, the volume of the output gear 31 is about 19.8 times that of the interference member 32, and the mass is about 3.6 times. In this case, since the interference member 32 is provided on one side of the output gear 31, when the output gear 31 rotates, the output gear 31 and the interference member 32 cause a rotation imbalance due to a weight Balance (Balance) difference between different materials.
In summary, since the mass of one side of the output gear 31 where the interference member 32 is provided is larger than the mass of the other side where the interference member 32 is not provided, a mass imbalance between one side and the other side of the output gear 31 will be caused. When the output gear 31 rotates in such a mass imbalance state, a rotational imbalance such as asymmetric rotation of the output gear 31 will be caused. As such an unbalanced mass of the output gear 31 causes poor rotation and causes a decrease in air tightness, it may cause problems such as a decrease in output efficiency and leakage of cooling water.
In order to prevent the generation of a rotational imbalance caused by a left-right mass imbalance of the output gear 31 provided with such an interference member 32, the present embodiment includes at least one balance member 33.
As shown in fig. 4, the balance member 33 is used to compensate for the difference in mass between the one side of the output gear 31 where the interference member 32 is provided and the other side of the output gear 31 where the interference member 32 is not provided. For this, the balance member 33 may include a plurality of ribs arranged on the other side of the output gear 31 in the diameter direction. In the present embodiment, a plurality of output gears 31 are provided on the other surface where the interference member 32 is not provided.
That is, the balance member 33 includes a plurality of ribs that are provided to extend in the diameter direction in an adjacent manner on the other side of the output gear 31 having a relatively low mass, and therefore, the mass corresponding to the interference member 32 can be added to the other side of the output gear 31. Thereby, the mass of one side of the output gear 31 where the interference member 32 is provided can be made to cancel the mass unbalance of the output gear 31 similarly to the mass of the other side of the plural balance members 33 adjacent to each other in a rib shape.
For reference, a plurality of gear grooves 31b recessed to a prescribed depth in one surface and the other surface of the output gear 31 may be formed on the outer surface of the output gear 31 in a manner spaced apart from each other in the circumferential direction. Among such a plurality of gear grooves 31b, a plurality of balance members 33 may be provided in the plurality of gear grooves 31b located on the other surface of the output gear 31 and located in a region not overlapping with the interference member 32, instead of the one surface of the output gear 31.
On the other hand, the structure of the balance member 33 is not limited to fig. 4. For example, a modification of the balance members 133 and 233 shown in fig. 5 and 6 may be adopted.
First, referring to fig. 5, a groove-shaped balance member 133 recessed to a predetermined depth may be provided in a region overlapping the interference member 32 on the other surface of the output gear 31 where the interference member 32 is not provided. The balance member 133 has a shape extending in the circumferential direction overlapping the interference member 32, and is provided on the other surface and the other side of the output gear 31, thereby reducing the mass of the other side of the output gear 31. Thus, even if the interference member 32 is provided at the other side of the output gear 31, the balance member 133 can compensate for the mass difference between the one side and the other side of the output gear 31.
For reference, a modification may be made in which the balance member 133 shown in fig. 5 is provided on the side where the interference member 32 is provided on one surface of the output gear 31, and is not provided on the other surface of the output gear 31.
As shown in fig. 6, a plurality of balance members 233 may be in the form of ribs extending in the diameter direction so as to be adjacent to one surface of the output gear 31 on which the interference member 32 is provided. The plurality of balance members 233 of such a rib shape can compensate for the mass of the output gear 31 corresponding to the mass of the interference member 32, and thus, balance can be ensured when the output gear 31 rotates.
The detecting unit 40 detects an output state of the output unit 30. The detection unit 40 filters electromagnetic compatibility (EMC, electro Magnetic Compatibility) by detecting rotation of the interference member 32, and the interference member 32 is made of a metal material and is interlocked with the output gear 31. That is, in the detecting section 40, the position sensor for detecting the interference member 32 and the electromagnetic compatibility filter share one Printed Circuit Board (PCB).
Among them, the detection section 40 is provided adjacent to the drive source 21, and therefore, electromagnetic compatibility generated from the drive source 21 is easily filtered. Further, since the detection unit 40 is connected to the ground plate 23 closely attached to the drive source 21 as described above, noise of the drive source 21 can be effectively reduced.
On the other hand, the detecting portion 40 includes a contact wire 41 for making electrical connection with the driving source 21. The contact wire 41 is provided with at least one pair, one side is connected to the drive source 21, and the other side is provided at a connection end 41a connected to the detection unit 40. The connection end 41a of such a contact wire 41 is inserted into the connection hole 41b connected to the detection portion 41, so that the detection portion 40 is electrically connected to the drive source 21.
The detection unit 40 provided with a printed circuit board is connected to the drive source 21 via a contact line 41, and can directly transmit an external power source to the drive source 21. Further, the degree of freedom in the design position of the drive source 21 can be further increased by simplifying the connection of the drive source 21 to an external power source through the contact line 41.
As described above, since the detection unit 40 is provided with one printed circuit board, the position detection function and the electromagnetic compatibility filtering function for detecting the interference member 32 can be simultaneously performed, which is advantageous in ensuring excellent electromagnetic compatibility, and in increasing the degree of freedom in selecting a plurality of components such as gears and motors. That is, the detection unit 40 provided with one printed circuit board can ensure space and design freedom, and can easily ensure quality of control accuracy.
As shown in fig. 3, a position sensor is provided on the printed circuit board of the detection unit 40, and one side of the output shaft 31a is fixed to the center of the position sensor by a fixing pin 42. In this case, the other side of the output shaft 31a is connected to a control valve (not shown). As described above, since the output shaft 31a is fixed to the detection unit 40 by the fixing pin 42, the output shaft 31a is prevented from being displaced due to the rotation of the output gear 31, and thus a predetermined detection sensitivity can be ensured.
Hereinafter, with reference to fig. 1 and 2, a control operation of the actuator 1 of the cooling water control valve for a vehicle according to the present invention having the above-described configuration will be described.
First, if a driving force is generated from the driving source 21, the generated driving force is transmitted to the output gear 31 through the first to fourth transmission gears 24 to 27 at a reduced speed. As the output gear 31 rotates by receiving the driving force, the flow of the cooling water may be controlled by outputting the driving force through a control valve (not shown) provided at the outside.
On the other hand, an interference member 32 is provided on one surface of the output gear 31, and the interference member 32 is detected by the opposite detection unit 40. That is, the detecting section 40 detects the interference member 32 as a position sensor. In which, since a mass difference between the output gear 31 and the interference member 32 due to different materials is compensated by the balance member 33, balance can be maintained when the output gear 31 rotates.
The detection section 40 detects the state of the output gear 31 in real time by the detected interference member 32 to filter electromagnetic compatibility. In this case, the detection unit 40 is electrically connected to the drive source 21 via the contact line 41, and an external power source can be supplied. The driving source 21 is grounded to the ground plate 23, and one side of the ground plate 23 is connected to the detection unit 40, so that noise of the driving source 21 can be filtered and eliminated.
While the invention has been described with reference to the preferred embodiments thereof, it should be understood that various changes and modifications can be made by one skilled in the art without departing from the spirit and scope of the invention as set forth in the following claims.
Claims (22)
1. An actuator for a cooling water control valve for a vehicle, characterized in that,
comprising the following steps:
a driving section for generating a driving force;
an output unit configured to drive a control valve that selectively opens or blocks a flow of cooling water for a vehicle by a driving force supplied from the driving unit; and
a detecting part for detecting the output state of the output part,
the detection unit is provided with a position sensor for detecting the position of the output unit and an electromagnetic compatibility filter for filtering electromagnetic compatibility.
2. The actuator of the cooling water control valve for a vehicle according to claim 1, wherein the driving portion includes:
a driving source having a cylindrical shape and adjacent to the detecting section; and
at least one transmission gear connected to the drive source for transmitting the drive force to the output portion in a decelerating manner.
3. The actuator for a cooling water control valve for a vehicle according to claim 2, wherein,
the driving source is supported by a ground plate having a circular arc shape,
when the driving source is pressed against the ground plate, the ground plate has at least two ground contacts, and one side of the ground plate is connected to the detecting unit.
4. The actuator for a cooling water control valve for a vehicle according to claim 1, wherein,
the output part comprises an output gear which rotates around an output shaft by the driving force of the driving part,
one side of the output shaft is fixed at the center of the position sensor through a fixing pin, and the other side of the output shaft is connected with the control valve.
5. The actuator for a cooling water control valve for a vehicle according to claim 1, wherein,
the output unit includes:
an output gear which rotates around an output shaft by a driving force of the driving unit; and
an interference member which partially covers one surface of the output gear in opposition to the detection unit and is linked with the rotation of the output gear,
the output gear and the interference member are made of different materials.
6. The actuator for a coolant control valve for a vehicle according to claim 5, wherein at least one balance member is provided on said output gear for compensating for a mass imbalance between an interference region of said output gear where said interference member is provided and a non-interference region where said interference member is not provided.
7. The actuator for a cooling water control valve for a vehicle according to claim 5, wherein,
the output gear is made of plastic material, the interference member is disposed on one face of the output gear in such a manner as to cover a partial area of one side,
at least one balance member is provided on the other side of the output gear to compensate for a difference in mass between the mass of the one side of the output gear where the interference member is provided and the mass of the other side of the output gear where the interference member is not provided.
8. The actuator for a coolant control valve for a vehicle according to claim 7, wherein said balance member includes a plurality of ribs extending in a diametrical direction adjacently on the other side of the other face of said output gear where said interference member is not provided.
9. The actuator for a cooling water control valve for a vehicle according to claim 7, wherein said balance member includes a plurality of ribs extending in a diametrical direction on the other side of one face of said output gear in an adjacent manner so as to be adjacent to said interference member.
10. The actuator for a cooling water control valve for a vehicle according to claim 5, wherein,
the output gear is made of plastic material, the interference member is disposed on one face of the output gear in such a manner as to cover a partial area of one side,
the balance member is provided on one surface or the other surface of the output gear, and is provided on a side overlapping the interference member in a groove shape recessed by a predetermined depth.
11. The actuator for a coolant control valve for a vehicle according to claim 10, wherein said balance member extends in a circumferential direction overlapping with said interference member.
12. The actuator for a cooling water control valve for a vehicle according to claim 1, wherein,
the detection part comprises a printed circuit board provided with the position sensor and an electromagnetic compatibility filter,
the driving source is connected to the printed circuit board via a contact wire and can be connected to an external power source.
13. An actuator for a cooling water control valve for a vehicle for controlling the flow of cooling water, characterized in that,
comprising the following steps:
a driving section for generating a driving force;
an output unit connected to the driving unit and configured to drive the control valve by the driving force; and
a detection part including a printed circuit board for detecting the output state of the output part,
in the detecting section, a position sensor for detecting the output section and an electromagnetic compatibility filter for filtering electromagnetic compatibility share one printed circuit board.
14. The actuator for a cooling water control valve for a vehicle according to claim 13, wherein,
the driving unit includes:
a driving source adjacent to the printed circuit board in such a manner as to be electrically connected thereto, for generating a driving force; and
at least one transmission gear connected to the driving source for transmitting the driving force to the output portion in a decelerating manner,
the driving source is connected to the printed circuit board via a contact line to be connected to an external power source.
15. The actuator for a cooling water control valve for a vehicle according to claim 14, wherein,
the driving source is supported by a ground plate having a circular arc shape,
when the driving source is pressed against the ground plate, the ground plate has at least two ground contacts, and one side of the ground plate is connected to the printed circuit board.
16. The actuator for a cooling water control valve for a vehicle according to claim 13, wherein,
the output unit includes:
an output gear which rotates around an output shaft by a driving force of the driving unit; and
an interference member partially covering one surface of the output gear and facing the printed circuit board, and rotationally linked with the output gear,
the output gear and the interference member are made of different materials.
17. The actuator for a coolant control valve for a vehicle according to claim 16, wherein one side of said output shaft is fixed to a center of said position sensor by a fixing pin, and the other side is connected to said control valve.
18. The actuator for a cooling water control valve for a vehicle according to claim 16, wherein,
the output gear is made of plastic material, the interference member is disposed on one face of the output gear in such a manner as to cover a partial area of one side,
at least one balancing member is provided on the output gear for compensating for mass unbalance between an interference region of the output gear where the interference member is provided and a non-interference region where the interference member is not provided.
19. The actuator for a coolant control valve for a vehicle according to claim 18, wherein said balance member includes a plurality of ribs extending in a diametrical direction adjacently to another side of the other face of said output gear where said interference member is not provided.
20. The actuator for a coolant control valve for a vehicle according to claim 18, wherein said balance member includes a plurality of ribs extending in a diametrical direction on the other side of one face of said output gear in an adjacent manner so as to be adjacent to said interference member.
21. The actuator for a coolant control valve for a vehicle according to claim 18, wherein said balance member is provided on one surface or the other surface of said output gear, and is provided on a side overlapping said interference member in a groove shape recessed by a predetermined depth.
22. The actuator for a coolant control valve for a vehicle according to claim 21, wherein said balance member extends in a circumferential direction overlapping with said interference member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210711420.5A CN117307805A (en) | 2022-06-22 | 2022-06-22 | Actuator of cooling water control valve for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210711420.5A CN117307805A (en) | 2022-06-22 | 2022-06-22 | Actuator of cooling water control valve for vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117307805A true CN117307805A (en) | 2023-12-29 |
Family
ID=89235916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210711420.5A Pending CN117307805A (en) | 2022-06-22 | 2022-06-22 | Actuator of cooling water control valve for vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117307805A (en) |
-
2022
- 2022-06-22 CN CN202210711420.5A patent/CN117307805A/en active Pending
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