CN216813016U - Airflow control valve and vehicle-mounted control host - Google Patents

Abstract

The utility model provides an airflow control valve and a vehicle-mounted control host, wherein the airflow control valve comprises a valve body, a valve core, an adjusting piece and a dial plate, the dial plate comprises an indicating piece and scales, the indicating piece is in linkage connection with the valve core, and the scales are calibrated so that when the valve core moves, the indicating piece moves relative to the scales to indicate the airflow allowed to flow through an airflow channel. The utility model has numerous benefits over the prior art. For example, the air flow can be accurately controlled, so that the air inlet volume in the host can be controlled according to the heat dissipation requirement of the control host, and the hosts with different configurations can work in a safe and reliable heat dissipation environment.

Description

Airflow control valve and vehicle-mounted control host

Technical Field

The utility model relates to the technical field of vehicle control, in particular to a vehicle-mounted control device.

Background

With the development of science and technology, the integration level of a vehicle-mounted central computing platform (a control host) is higher and higher, the power consumption and the heat productivity are higher and higher, and the heat dissipation requirement cannot be met by the passive heat dissipation of the control host. The prior art mainly reduces the ambient temperature of the control host through the air conditioning system of the automobile, thereby radiating the vehicle-mounted control host, reducing the working temperature of the electronic device of the control host, ensuring that the electronic device works in a normal temperature range, avoiding the electronic device from being broken down or damaged due to overhigh working temperature, and improving the working efficiency and the service life of the electronic device.

In the prior art, the vehicle-mounted air conditioner supplies air through a main pipeline and then branches the air to each control unit of the control host through branch pipelines. Because the control unit has different heat power consumptions under different hardware configurations and working states, the required air volume is different. If the air supply amount is too large, the energy consumption of the air conditioner is consumed excessively, and energy waste is caused; conversely, if the air supply amount is too small, the heat dissipation requirement of the control unit cannot be satisfied. Therefore, there is a need to further improve the heat dissipation or cooling system of the control host to match the cooling air volume with the heat dissipation requirement of the control host, so as to ensure the safe and reliable operation of the control host without wasting energy.

SUMMERY OF THE UTILITY MODEL

One of the objects of the present invention is to provide an airflow control valve which is convenient to use and can accurately control the flow rate of an airflow, comprising: a valve body configured with an air flow passage; a valve element movably received within the gas flow passage to regulate a flow rate of gas flow permitted through the gas flow passage; the adjusting piece is positioned outside the valve body and is in linkage connection with the valve core so as to drive the valve core to move in the air flow channel and adjust the air flow allowed to flow through the air flow channel; and the dial plate comprises an indicating piece and a scale, the indicating piece is in linkage connection with the valve core, and the scale is calibrated so that when the valve core moves, the indicating piece moves relative to the scale to indicate the airflow allowed to flow through the airflow channel.

Optionally, the valve body has the cylindrical air flow channel, the air flow channel is provided with a fan-shaped static valve leaf, the static valve leaf is fixed to the inner surface of the air flow channel by the circular ring edge of the static valve leaf, and the radial direction of the static valve leaf is perpendicular to the axial direction of the air flow channel.

Optionally, the valve core includes a fan-shaped movable valve leaf, the radial direction of the movable valve leaf is perpendicular to the axial direction of the air flow channel, and the movable valve leaf is driven by the adjusting member to rotate relative to the static valve leaf by using a rotating shaft perpendicular to the radial direction of the static valve leaf as a rotating shaft.

Optionally, the airflow channel is further provided with: the first gear is fixedly connected to the adjusting piece through a first rotating shaft; and the second gear is meshed with the first gear and is fixedly connected to the movable valve leaf through a second rotating shaft, and the extending direction of the second rotating shaft is vertical to the first rotating shaft.

Optionally, the second shaft is supported and positioned by a flange that is fixedly attached to the inner wall of the airflow passage and is located between the second gear and the movable valve leaf.

Optionally, the valve core comprises a valve leaf in the shape of a half disc, and the linear edge of the valve leaf is pivotally connected with the linear edge of the static valve leaf.

Optionally, the dial plate includes the indicator in the form of a pointer and the scale in the form of a semicircular ring, and a scale position to which the pointer is rotated relative to the scale indicates an airflow rate currently allowed to flow through the airflow passage.

The utility model also provides a vehicle-mounted control host which is provided with a plurality of control units and further comprises an air inlet pipeline for conveying cooling air flows to the control units, and the air inlet pipeline is provided with the control valve in any one of the above embodiments.

Optionally, the air inlet duct includes a main duct and a plurality of branch ducts communicated with the main duct, the main duct is configured to be communicated with an air supply duct of the vehicle-mounted air conditioner, each of the plurality of branch ducts leads to a corresponding control unit, and each branch duct is provided with the control valve according to any one of the above embodiments.

Optionally, the method further includes: a detection unit configured to detect temperatures of the plurality of control units; an alarm unit configured to issue an alarm regarding resetting of the respective control valve to change the flow rate of the cooling air flow when the temperature of any one of the control units is detected to exceed a preset threshold.

The air flow control valve and the on-board control host according to the utility model have numerous benefits over the prior art. For example, the adjustable airflow control valve is installed at each branch pipeline of the air inlet pipeline and is provided with a scale dial, so that the airflow of each branch pipeline can be accurately controlled, the air inlet volume inside the main machine can be controlled according to the heat dissipation requirement of the control main machine, the main machines with different configurations can work in a safe and reliable heat dissipation environment, the reliability of products is improved, and the service life of electronic devices of the products can be prolonged.

Drawings

Further details and advantages of the utility model will be further described in the following with reference to the accompanying drawings, in which:

FIG. 1 is a schematic longitudinal cross-sectional view of an airflow control valve according to the present invention;

FIG. 2 is a schematic cross-sectional side view of the airflow control valve of FIG. 1 at position A-A;

FIG. 3 is a schematic structural diagram of a control host according to the present invention;

fig. 4 is a schematic view of the air flow of the control host shown in fig. 3.

Detailed Description

In the following description and throughout the present application, the terms "upper", "lower", "left", "right", "inner", "outer", and the like may be used to refer to orientations or positional relationships based on the orientation or position shown in the drawings or the orientation or position in which the product of the present invention is conventionally positioned during use. The terms are used for convenience of description only and not intended to imply that the associated devices or elements must have a particular orientation or be constructed and operated in a particular orientation. Furthermore, the terms "first", "second", etc. may be used merely to distinguish different components or structures, etc. without indicating any order of presence. Further, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

The air flow control valve of the utility model is mounted on the air flow pipeline and is used for setting or adjusting the air flow of the pipeline. Those skilled in the art will appreciate that the flow rate of the gas in the conduit will generally depend on the cross-sectional area of the internal passageway of the tubing and the velocity of the gas. Therefore, in the case of a constant pipeline condition, the airflow control valve of the present invention is disposed on the pipeline, and the overall airflow rate through the pipeline is changed by changing the valve opening degree (i.e., the open area between the valve element and the valve seat) of the airflow control valve.

The air flow control valve of the present invention will now be described in detail with reference to fig. 1 and 2. Fig. 1 depicts in a schematic way a simplified longitudinal section of an airflow control valve according to an embodiment of the utility model, and fig. 2 is a schematic cross-sectional view (cross-sectional view) of the airflow control valve shown in fig. 1 in a position a-a. In the embodiment shown in the drawings, the longitudinal direction of the airflow control valve is the longitudinal direction of the valve body, and the lateral direction of the airflow control valve is the direction of a plane perpendicular to the longitudinal direction.

The control valve is shown as having a cylindrical valve body 10, and the valve body 10 may be formed integrally with a housing (not shown) of the control valve or may be a separate member accommodated in an inner space of the housing. The valve body 10 is configured with an air flow channel 11, and one end of the air flow channel 11 is an air inlet end 12, and the other end is an air outlet end 13. The gas flow passage 11 is cylindrical and its longitudinal and lateral directions coincide with those of the valve body. The air flow channel is provided with a circular cross section, the longitudinal direction penetrating through the circle center of the circular cross section is the axial direction of the air flow channel, and the transverse direction penetrating through the circle center of the circular cross section is the radial direction of the air flow channel.

A static valve leaf 20 serving as a valve seat is arranged in the airflow channel 11 of the valve body 10, the static valve leaf 20 is in a semicircular disc shape and comprises a semicircular ring edge 21 and a linear edge 22, wherein the semicircular ring edge 21 is fixed to the inner surface of the airflow channel and is perpendicular to the axial direction of the airflow channel, and the midpoint of the linear edge 22 coincides with the circle center of the cross section of the airflow channel.

The valve body 10 further has a valve leaf 30 installed in the airflow channel 11 as a valve core, the valve leaf 30 is semi-disc-circular and includes a semi-circular edge 31 and a linear edge 32, the midpoint of the linear edge 32 is connected to a second rotating shaft 44 shown in the figure, and the extending direction of the second rotating shaft 44 coincides with the axial direction of the airflow channel.

The terms "disposed" and "connected," as used herein, unless expressly defined otherwise, may be fixedly connected, detachably connected, or integrally connected. Specific meanings and possible specific forms of the terms in the present invention can be understood by those skilled in the art according to specific situations.

The movable valve leaf and the static valve leaf which are semi-disc-shaped have an axial direction and a radial direction, wherein the axial direction is vertical to the direction of the plane where the disc is located, and the radial direction penetrates through any straight line direction of the circle center on the disc. Further, the second rotating shaft 44 extends through the center of the valve leaf, so that when the valve leaf is driven by the second rotating shaft 44 to rotate, the axis center line of the second rotating shaft 44 coincides with the axis of the valve leaf.

The movable valve leaf 30 and the static valve leaf 20 have substantially the same radius, i.e. the linear edge lengths of the movable valve leaf 30 and the static valve leaf 20 are substantially the same, and the movable valve leaf 30 is arranged coaxially with the static valve leaf 20. For this reason, when the movable valve leaf 30 rotates about the second rotating shaft 44 as a rotating shaft, the overlapping area with the stationary valve leaf 20 changes. Specifically, when the movable valve leaf 30 rotates, the section of the airflow channel not closed by the movable valve leaf 30 and the stationary valve leaf 20 changes, and thus the opening section of the airflow channel or the opening degree of the valve is changed, so that the flow rate of the airflow flowing through the airflow channel changes. When the movable valve leaf 30 is rotated to make the semicircular edge 31 opposite to the semicircular edge 21 of the fixed valve leaf 20 in the transverse direction of the airflow channel, the section of the airflow channel is completely closed, and the valve has zero opening and does not allow airflow to pass through the airflow channel; when the movable valve leaf 30 is rotated to have its semicircular edge opposed to the semicircular edge of the stationary valve leaf 20 in the longitudinal direction of the air flow passage, the air flow passage has the largest open cross-section, and the valve has the largest opening degree of 180 degrees, allowing the maximum air flow rate to pass through the air flow passage.

In order to drive the movable valve leaf 30 to rotate relative to the stationary valve leaf 20, a first gear 42 and a second gear 43 are arranged in the air flow channel 11. The first gear 42 is fixedly connected via a first rotational shaft 41 to an adjusting member, which is arranged as a rotary knob 40 in the figure, outside the valve body 10. The second gear 43 is meshed with the first gear 42 and is fixedly connected to the movable valve leaf 30 by a second rotating shaft 44. The second shaft 44 is perpendicular to the first shaft 41 so that rotation of the knob 40 is transmitted and translated into rotation of the valve leaf 43.

Further, a flange support 45 rotatably positioning the second rotating shaft 44 is provided in the air flow passage 11, and the flange support 45 is fixedly connected to the inner wall of the air flow passage 11 and is located between the second gear 43 and the movable valve leaf 30. The second gear 43 and the flange support 45 are provided with through holes to allow air to enter from the air inlet end 12, flow out of the non-coincident section between the driven valve leaf 30 and the static valve leaf 20 after flowing through the through holes of the second gear 43 and the flange support 45, and finally discharge to the air outlet end 13.

As a variation of the embodiment shown in fig. 1 and 2, the valve leaf 30 may be arranged with its straight edge 32 in pivotal connection with the straight edge 22 of the stationary valve leaf 20. For this purpose, the linear edge 32 of the movable valve leaf 30 can be provided with a bushing, while the linear edge 22 of the stationary valve leaf 20 is also provided with a bushing, by means of which both the movable valve leaf 30 and the stationary valve leaf 20 are connected to a common rotary shaft, so that the movable valve leaf 30 and the stationary valve leaf 20 rotate relative to each other in a hinge-like manner. Accordingly, by providing a suitable transmission mechanism, such as a rack and pinion transmission mechanism, the movable valve leaf 30 is pivoted relative to the stationary valve leaf 20 by the rack and pinion transmission mechanism when the knob 40 is turned. When the movable valve leaf 30 pivots relative to the fixed valve leaf 20, the overlapping area of the two in the axial direction of the airflow channel changes, and therefore the airflow flowing through the airflow channel is changed. It will be appreciated that when the movable valve leaf 30 is rotated to have its semicircular edge 31 opposed to the semicircular edge 21 of the stationary valve leaf 20 in the transverse direction of the air flow path, the cross-section of the air flow path is completely closed and does not allow the air flow to pass through; when the movable valve leaf 30 is rotated to have its semicircular edge 30 coincident with the semicircular edge 21 of the stationary valve leaf 20 in the longitudinal direction of the airflow passage, the airflow passage has a maximum open cross-section, allowing maximum airflow therethrough.

It will be appreciated by those skilled in the art that the stationary and moving valve leaves may also be configured in other fan shapes than semi-circular, such as having an area greater than or less than a semi-circle, in accordance with the principles of the present invention. In addition, the static valve leaf and the movable valve leaf can be arranged in other valve seat-valve core structures different from those described above.

With continued reference to fig. 2, the outside of the valve body 10 is provided with a dial 50, the dial 50 being provided with indicators in the form of scales 51 and hands 52. The scale 51 is used to indicate the rotational position of the movable valve leaf 30 relative to the stationary valve leaf 20 to indicate the degree of opening of the valve and the amount of airflow permitted through the airflow path. The pointer 52 is linked with the valve leaf 30, so that when the valve leaf 30 is driven to rotate, the pointer 52 rotates around the axis to point to the position corresponding to the scale 51. For example, a third gear (not shown) may be provided which meshes with the first gear 42 or the second gear 43 and is interlocked with the knob 40 and the valve leaf 30, so that when the rotational position of the valve leaf 30 with respect to the stationary valve leaf 20 is adjusted by the knob 40, the pointer 52 is correspondingly rotated with respect to the scale 51.

In this context, the linkage refers to that when one of the components moves, all other components move, and the moving amplitudes (such as distance, angle, and the like) of the components are in a single proportional relationship. For example, in the illustrated control valve, the knob 40, the pointer 51, and the valve leaf 30 are linked by a gear transmission.

More specifically, when the knob 40 is turned, the first rotating shaft 41 rotates the first gear 42, the first gear 42 in turn rotates the engaged second gear 43, and the second gear 43 further rotates the second rotating shaft 44 and the movable valve leaf 30, thereby adjusting the valve opening determined by the relative rotational positions of the movable valve leaf 30 and the stationary valve leaf 20, that is, allowing the flow of the air flowing through the air flow passage. At the same time, a third gear (not shown) engaged with the first gear 42 or the second gear 43 correspondingly rotates, and drives the pointer 51 to rotate around the rotation axis thereof relative to the scale 52, so as to indicate the opening degree of the valve and allow the air flow passing through the air flow passage. The pointer 51 and the scale 52 are properly calibrated according to the transmission ratio between the third gear and the meshed first gear or second gear, the airflow speed and other factors, and the pointer 51 can accurately indicate the opening degree of the valve by means of the scale 52, so that the airflow flow allowed to flow through the airflow channel is accurately indicated.

The dial 50 and scale 51 may be provided in any suitable form. For example, the dial 50 may have a disc shape and indicate two semicircles, one of which represents a still valve leaf and the other of which is shown as a scale. The scale may show a number of steps as an icon to correspond to several air flow rates commonly used in practice. Furthermore, each gear can be continuously provided with a secondary scale so as to meet the requirement of subdivision adjustment.

An example of a control master according to the present invention will be described with reference to fig. 3 and 4, wherein fig. 3 is a schematic structural diagram of the control master, and fig. 4 is a schematic airflow diagram of the control master. In the field of vehicles, a control host is also called a vehicle-mounted computing control system, and a plurality of control units are installed in the control host, and can be the same or different so as to meet different computing and control requirements. For this reason, different numbers and types of control units need to be configured in different control situations. Different control units have different power consumption and heating values, and further need to provide corresponding heat dissipation, so that the control units with different configurations can work in a safe and reliable heat dissipation environment, the reliability of products is improved, and the service life of electronic devices of the products is prolonged.

The control master illustrated in the figure comprises two control units, namely a first control unit 71 and a second control unit 72, and the respective control units are actively cooled by delivering a cooling air flow through an intake duct. The intake duct includes a main duct 61 communicating with an external air supply and two branch ducts communicating with the control main, wherein the main duct 61 is configured to communicate with a blast duct of, for example, an on-vehicle air conditioner, a first branch duct 62 leading to a first control unit 71, and a second branch duct 64 leading to a second control unit 72. Further, the first branch conduit 62 is provided with a first control valve 63 and the second branch conduit 64 is provided with a second control valve 65 to regulate the flow of the gas stream through the respective branch conduit in accordance with the actual operating requirements of the respective control unit. The first control unit 71 communicates with the first exhaust duct 82, the second control unit 72 communicates with the second exhaust duct 83, and the cooling air flows, after heat exchange with the respective control units, from the first exhaust duct 82 and the second exhaust duct 83 to the main exhaust duct 81, and is finally discharged to the atmosphere.

In implementation, for example, before the control host leaves a factory, the cooling air volume gear required by each control unit may be calibrated through test calculation. And then, when the control host is installed or maintained, the control valves on the corresponding branch pipelines are adjusted to corresponding air volume gears according to the cooling air volume calibrated by each used control unit so as to meet the corresponding cooling requirements. Since the control valve has a plurality of gears, each control valve can meet the cooling requirements of different types of control units. Particularly, for the same control host, only one or more control units can be replaced and the control valve can be adjusted to the corresponding air volume gear to complete the updating or maintenance of the control host, so that the installation and maintenance period and cost of a product can be effectively reduced, and the reliability of the product is improved. In addition, the air supply quantity is controlled through the control valve, so that the air quantity is matched with the requirement of the control host, energy is not wasted, and the control host can be ensured to work safely and reliably.

Further, for the vehicle-mounted control host, a detection unit and an alarm unit can be further arranged, wherein the detection unit is configured to detect the temperature of each control unit, and the alarm unit is configured to give an alarm about resetting the control valve to change the flow rate of the cooling air flow when the temperature of the control unit is detected to exceed a preset threshold value, so that the detection unit and the alarm unit can realize refined cooling control on the control host to meet specific use requirements.

The above contents are merely related to the illustrative embodiments of the present invention, and are not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.

Claims (10)

1. An airflow control valve, comprising:

a valve body having an air flow passage formed therein;

a valve core movably received in the air flow passage to regulate an air flow rate allowed to flow through the air flow passage;

the adjusting piece is positioned outside the valve body and is in linkage connection with the valve core so as to drive the valve core to move in the air flow channel and adjust the air flow allowed to flow through the air flow channel; and

and the dial plate comprises an indicating piece and a scale, the indicating piece is in linkage connection with the valve core, and the scale is calibrated so that when the valve core moves, the indicating piece moves relative to the scale to indicate the air flow allowed to flow through the air flow channel.

2. The airflow control valve according to claim 1, wherein the valve body has the airflow passage in a cylindrical shape, the airflow passage is provided with a stationary valve leaf in a fan shape, the stationary valve leaf is fixed with its annular edge to an inner surface of the airflow passage, and a radial direction of the stationary valve leaf is perpendicular to an axial direction of the airflow passage.

3. The airflow control valve according to claim 2, wherein the valve body includes a fan-shaped valve leaf, a radial direction of the valve leaf is perpendicular to an axial direction of the airflow passage, and the valve leaf is driven by the adjusting member to rotate relative to the stationary valve leaf with a rotation shaft perpendicular to the radial direction of the stationary valve leaf as a rotation shaft.

4. The airflow control valve of claim 3 wherein said airflow passage further includes:

the first gear is fixedly connected to the adjusting piece through a first rotating shaft;

and the second gear is meshed with the first gear and is fixedly connected to the movable valve leaf through a second rotating shaft, and the extending direction of the second rotating shaft is vertical to the first rotating shaft.

5. The airflow control valve of claim 4 wherein said second shaft is supported and positioned by a flange support fixedly attached to said inner wall of said airflow passageway and positioned between said second gear and said movable valve leaf.

6. The airflow control valve of claim 2 wherein the spool includes a valve leaf in the shape of a half disk, the linear edge of the valve leaf being pivotally interconnected with the linear edge of the stationary valve leaf.

7. The airflow control valve of claim 1 wherein the dial includes the indicator in the form of a pointer and the scale in the form of a semi-circular ring, the scale position to which the pointer is rotated relative to the scale indicates the amount of airflow currently permitted through the airflow passage.

8. An on-board control host having a plurality of control units, characterized in that the on-board control host further comprises an intake duct that delivers cooling air flow to the plurality of control units, the intake duct being provided with a control valve according to any one of claims 1 to 7.

9. The on-board control master according to claim 8, wherein the intake duct includes a main duct configured to communicate with a supply duct of the on-board air conditioner and a plurality of branch ducts communicating with the main duct, each of the plurality of branch ducts leading to a corresponding one of the control units, each branch duct being provided with the control valve according to any one of claims 1 to 7.

10. The on-vehicle control host according to claim 8 or 9, characterized by further comprising:

a detection unit configured to detect temperatures of the plurality of control units; and

an alarm unit configured to issue an alarm regarding resetting of the respective control valve to change the flow rate of the cooling air flow when the temperature of any one of the control units is detected to exceed a preset threshold.

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