CN216691272U - Throttle valve defroster and vehicle - Google Patents

Abstract

The utility model provides a throttle deicing device and a vehicle. The throttle valve deicing device comprises a heating device, a throttle valve and a first heat conduction channel connecting the heating device and the throttle valve, wherein the heating device is set to be a PTC heater so as to provide a heat source for the throttle valve through the first heat conduction channel. Because the existing PTC heater on the vehicle is used as the heat source of the throttle valve deicing device, a separate heating heat source is not required to be arranged, the total number of parts of the whole vehicle is reduced, the research and development period is effectively shortened, and the development cost is saved.

Description

Throttle valve defroster and vehicle

Technical Field

The utility model relates to the technical field of vehicles, in particular to a throttle deicing device and a vehicle.

Background

The icing of the throttle valve is generally caused by the fact that water vapor from an oil-gas separator is condensed and frosted in an air inlet manifold, after a vehicle is shut down, a high-temperature radiation and heat conduction in an engine cylinder body is quickly promoted in a short time, so that a frost layer in the air inlet manifold is melted into water drops and finally gathered in the area near the throttle valve plate, and when the vehicle is in a low-temperature environment for a period of time, the area near the throttle valve plate is iced, and finally the throttle valve plate is clamped.

At present, two main technical solutions for solving the problem of throttle valve icing are provided, one is a throttle valve heating and heat preservation solution, for example, a heating water channel is additionally arranged on a casing of the throttle valve, or heating impedance is arranged on the casing of the throttle valve. The other is a mechanical deicing scheme, namely a valve plate of the throttle valve is driven by a motor of the throttle valve to swing back and forth, and the aim of deicing before the engine is started is fulfilled by mutual contact collision of the valve plate and an ice layer.

The above description is included in the technical knowledge of the inventors, and does not necessarily constitute a prior art.

SUMMERY OF THE UTILITY MODEL

The inventor of the application discovers that the two deicing modes have great design defects after researching and analyzing the two existing deicing modes of the throttle. For the heating and heat preservation scheme of the throttle valve, a heat source is usually from an engine cooling system of the existing vehicle type or an electric heating heat source which is additionally arranged independently, the engine cooling system is used as the heat source and needs to start to work after the engine is started, so that the deicing period is long, and the energy loss is large. The independent electric heating heat source is adopted, the total number of parts on the whole vehicle is increased, the production cost of the whole vehicle is improved invisibly, in addition, the independent electric heating heat source also occupies the arrangement space in the whole vehicle, the boundary environment of the original parts is broken, the research and development period is prolonged, and the research and development cost is improved. For the mechanical deicing scheme, on one hand, the service life of the throttle valve is influenced, and under the condition of severe icing, the defect that the driving force of a motor of the throttle valve is insufficient to realize ice breaking is also existed, and the consistency of the ice breaking effect is not easy to control, and on the other hand, the controllability of the mechanical deicing on the size of ice blocks is poor, and certain potential safety hazards exist if the ice blocks with larger sizes are thrown into the cylinder body of the engine.

Based on the above analysis, the inventor of the present application proposes a new design concept, that is, an existing PTC heating module of a vehicle is used as a heat source of a throttle valve deicing device, and energy input to the throttle valve deicing device is realized while the PTC heating module performs heating operation. The PTC heating module of the existing vehicle type is usually used for heating a battery or an air conditioner, particularly in a cold environment, the PTC heating module is started for heating before an engine is started, and the heating operation can be set to be a deicing operation for opening a throttle valve while the heating is started, so that the deicing operation of the throttle valve is not limited by the working condition of the engine completely, in addition, the time for heating the battery or the air conditioner far exceeds the time required by the deicing operation, and the time can be completely overlapped. In addition, the PTC heating module integrates the function of a heat source of the throttle valve deicing device, an independent heating source is not required to be arranged on the whole vehicle, the total number of parts is reduced, the integration of the whole vehicle is improved, the original boundary environment of other parts is kept to the maximum extent, and the research and development period and the cost investment of the whole vehicle are reduced.

An embodiment of the utility model provides a throttle valve deicing device, which comprises a heating device, a throttle valve and a first heat conduction channel, wherein the heating device is connected with the throttle valve, and the heating device is set as a PTC heater so as to provide a heat source for the throttle valve through the first heat conduction channel.

The utility model further provides a vehicle comprising the throttle deicing device.

After the technical scheme is adopted, the embodiment of the utility model has the following beneficial effects:

the existing PTC heater on the vehicle is used as the heat source of the throttle valve deicing device, and an independent heating heat source is not required to be arranged, so that the total number of parts of the whole vehicle is reduced, the research and development period is effectively shortened, and the development cost is saved.

Other aspects will be apparent upon reading and understanding the attached drawings and detailed description.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the example serve to explain the principles of the utility model and not to limit the utility model.

FIG. 1 is a schematic diagram illustrating a first throttle deicer in accordance with an embodiment of the present invention;

FIG. 2 is a schematic illustration of a second throttle deicer in accordance with some exemplary embodiments of the present invention;

FIG. 3 is a partial cross-sectional view of a throttle deicer assembly in accordance with certain exemplary embodiments of the present invention;

FIG. 4 is a partial sectional view of a throttle deicer assembly in accordance with certain exemplary embodiments of the present invention;

FIG. 5 is a schematic illustration of a third throttle deicer in accordance with some exemplary embodiments of the present invention.

Reference numerals:

1-heating device, 11-heating chamber, 12-inlet, 13-outlet;

2-throttle valve, 21-shell, 22-valve plate, 23-mounting groove;

3-first heat conducting channel, 31-input channel, 32-output channel;

4-a second heat conducting channel;

5-a battery;

6-heating medium source, 61-return line, 62-outflow line;

7-a flow control valve;

8-control switch;

9-an icing sensor;

10-circulating pump.

Detailed Description

The technical scheme of the utility model is further explained by the specific implementation mode in combination with the attached drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting of the utility model.

In the embodiment of the utility model, as shown in fig. 1, a throttle valve deicing device is provided, which comprises a heating device 1, a throttle valve 2 and a first heat conduction channel 3 connecting the heating device 1 and a shell 21 of the throttle valve 2, wherein the heating device 1 is provided with a PTC heater to provide a heat source for the throttle valve 2 through the first heat conduction channel 3.

PTC (Positive Temperature Coefficient). PTC heaters are widely used in vehicles because of their excellent constant temperature heating characteristics, and are often used for heating components such as batteries and air conditioners. The principle of the PTC heater is that after the PTC heating plate is electrified, the resistance value is increased to enter a jump zone by self-heating, the surface temperature of the PTC heating plate is kept at a constant value, and the temperature is only related to the Curie temperature and the applied voltage of the PTC heating plate and is basically unrelated to the ambient temperature, so that the reliability of the PTC heater is high.

The throttle valve deicing device provided by the embodiment of the utility model is used as a heat source of the throttle valve deicing device by using the conventional PTC heater on a vehicle, so that a separate heating heat source is not required to be arranged, the total quantity of parts of the whole vehicle is reduced, the research and development period is greatly shortened, and the development cost is effectively saved. In addition, compare the scheme that adopts mechanical type deicing, above-mentioned deicing scheme can not influence the design life-span of throttle 2, turns into non-solid water or steam with original solid ice, and deicing effect is better, and is stronger to the controllability of uniformity, also can effectively avoid mechanical type deicing back great size ice-cube to be thrown into other potential safety hazards that cause in the engine cylinder body.

In some exemplary embodiments, as shown in fig. 2 and 3, the heating apparatus 1 is provided with a heating cavity 11, and an inlet 12 and an outlet 13 which are provided on a cavity wall of the heating cavity 11, the heating cavity 11 is configured to contain a heating medium, the first heat conducting channel 3 includes an input channel 31 and an output channel 32, the throttle valve 2 has a fluid channel, the inlet and the outlet 13 of the fluid channel are communicated via the input channel 31, and the outlet and the inlet 12 of the fluid channel are communicated via the output channel 32 to form a circulation flow path of the heating medium.

The heating device 1 may be a water heating device, and the heated substance is not limited to water, but should be understood in a broad sense to refer to all flowable liquids used in vehicles, such as common cooling liquids. According to practical situations, gas can be used as a medium for transmitting the heat source, for example, oxygen, etc., and therefore, the heating medium can be liquid or gas, and is not limited herein. The first heat conducting channel 3 is designed to have a channel for fluid communication, and is described herein with reference to a liquid as a medium. One end of the input passage 31 is connected to the housing 21, and the other end of the input passage 31 is connected to the outlet 13, thereby forming an input passage for supplying the coolant to the throttle valve 2. One end of the output passage 32 is connected to the housing 21, and the other end of the output passage 32 is connected to the inlet 12, so that a coolant return passage from the throttle valve 2, that is, an input passage and a return passage, is formed as a liquid circulation flow path.

At the junction of import 12 and export 13 to and set up corresponding joint department on casing 21, can set up solitary connection adapter, the through-hole that directly sets up on the part main part promptly, can improve the convenience that connects installation and maintenance change, also can conveniently seal the processing to the junction.

Of course, the interfaces of the input path and the return path on the housing 21 are not the same, and a diagonal arrangement may be adopted to increase the total area and the total contact time of the liquid flowing through the housing 21 and improve the deicing efficiency.

In addition, the heating device 1 can adopt a closed structure as shown in fig. 3, namely, a relatively closed heating cavity 11 is arranged, or a cooling circulation system on the whole vehicle can be utilized, a PTC heater and the cooling circulation system are combined, a branch is separated from the existing cooling circulation system, and the PTC heater is utilized to provide a heat source for the cooling circulation system, so that the deicing operation is carried out on the frozen throttle 2.

The input channel 31 and the output channel 32 can be rubber hoses, and the rubber hoses are composed of an inner rubber layer, a steel wire braided layer and an outer rubber layer, so that the rubber hoses have high flexibility, are suitable for various overall vehicle arrangement modes, and have high design flexibility.

In some exemplary embodiments, as shown in fig. 4, a liquid passage is provided on the outer wall of the housing 21 of the throttle valve 2, the inlet of the liquid passage communicates with the outlet 13 via the input passage 31, the outlet of the liquid passage communicates with the inlet 12 via the output passage 32, and the liquid passage is spirally provided along the outer wall of the housing 21 of the throttle valve 2, or is provided along the axial direction of the housing 21 of the throttle valve 2. In the case where the liquid passage is provided in the axial direction of the housing 21 of the throttle valve 2, a plurality of liquid passages may be provided, that is, a plurality of liquid passages may be provided in the circumferential direction of the outer wall of the housing 21, and in this design state, the liquid passage inlet is the total liquid inlet, and of course, the liquid passage outlet is also the total liquid outlet, and a transition flow path may be provided between the total liquid inlet and each liquid passage. As shown in fig. 4, the liquid passage is provided along the outer wall of the housing 21 of the throttle valve 2 in the axial direction, and other arrangements of the liquid passage can be referred to by design.

In some exemplary embodiments, as shown in fig. 2, a heating medium source 6 is further included, a discharge port of the heating medium source 6 communicates with the inlet 12 through a return line 61, an inflow port of the heating medium source 6 communicates with the outlet 13 through an outflow line 62, the input passage 31 is connected to the outflow line 62, and the output passage 32 is connected to the return line 61.

In some exemplary embodiments, as shown in fig. 2, to power the flow of the circulating liquid in the circulating flow path, a circulating pump 10 may be added to the flow path, i.e., circulating pump 10 is provided on a return line 61 between inlet 12 and outlet channel 32, and/or circulating pump 10 is provided on an outflow line 62 between outlet 13 and inlet channel 31. Wherein, only the circulation pump 10 disposed on the outflow line 62 between the outlet 13 and the input channel 31 is shown in the figure, the circulation pumps 10 on the other branches can be disposed with reference, and there is no limitation regarding the specific disposition position and the specific disposition number of the circulation pumps 10.

In some exemplary embodiments, a flow control valve 7 for controlling the flow rate of the fluid in the first heat conducting channel 3 is disposed on the first heat conducting channel 3. As shown in fig. 2, the flow control valve 7 is disposed on the first heat conduction channel 3, i.e. the input channel 31, where the inlet of the liquid channel communicates with the outlet 13, or/and the flow control valve 7 may be disposed on the first heat conduction channel 3, i.e. the output channel 32, where the outlet of the liquid channel communicates with the inlet 12, so that the flow parameters of the circulating liquid in the liquid circulation flow path can be controlled by controlling the opening and closing of the flow control valve 7 and the adjustment of various opening degrees. For example, when the ice layer on the throttle valve 2 is thick, the opening degree of the flow control valve 7 may be set to a maximum value to increase the heat output value of the heating apparatus 1 per unit time in order to improve the efficiency of deicing.

In some exemplary embodiments, both ends of the first heat conduction path 3 are respectively provided to be connected to the inlet 12 and the outlet 13 to form a circulation flow path of the heating medium, and the middle portion of the first heat conduction path 3 is in contact with the throttle valve 2 to conduct heat. The middle part of the first heat-conducting channel 3 is the other area except for the two end points of the channel, and is not limited to the midpoint of the first heat-conducting channel 3. The first heat conducting channel 3 is arranged as a liquid channel, and heat can be transferred to the throttle valve 2 by virtue of the conducting performance of the liquid medium, and the first heat conducting channel 3 can be wound on the throttle valve 2, and other contact matching forms can also be adopted.

In some exemplary embodiments, as shown in fig. 5, one end of the first heat conducting path 3 is in contact with the heating device 1, and the other end is in contact with the throttle valve 2, and the first heat conducting path 3 is provided to conduct heat of the heating device 1 to the throttle valve 2. Wherein, the first heat conduction channel 3 is configured as a heat conduction line, a heat conduction band or a heat conduction pipe.

The whole throttle valve deicing device does not adopt a heating mode of water or air fluid, but adopts a connection mode of a wire. For example, the heating device 1 may directly supply electric current to the case 21 of the throttle valve 2 through a wire, and since the case 21 is usually made of a metal material, such as steel, aluminum, or the like, the metal material has excellent heat conductivity, and thus, it is possible to perform a good deicing operation on an ice layer condensed in the vicinity of the valve plate 22 of the throttle valve 21 and even the entire throttle valve 2.

In actual development, development of a vehicle model relates to multiple modes, such as a brand-new development mode, an expanded development mode, basic vehicle model upgrading and replacing and the like. There are various combinations of the components for realizing all functions based on one development mode, for example, the arrangement of the individual engines is classified into five main categories: the engine front drive, the engine front back drive, the engine back drive, the engine middle back drive and the full drive. In the case of the heating device 1, i.e. the PTC heater, it is usually arranged in the "intermediate space" formed by the front wall, i.e. the body shell, and the interior trim of the vehicle, or the front wall of the body shell and the cabin part, so that the connection between the PTC heater and the throttle flap 2 is also adapted to different vehicle arrangements. When the PTC heater is far from the throttle 2, in order to reduce the heat loss in the transmission path, a water heating method, i.e., a fluid circulation method, may be used to achieve energy conduction. When the PTC heater is in close proximity to the throttle 2, a conductive line transmission may be used, or other solid transmission may be used, as broadly understood herein, i.e., a transmission medium other than a fluid. When the arrangement space between the PTC heater and the throttle valve 2 is narrow, a transmission manner of the heat conductive wire may be employed. In the design and development of an actual vehicle model, the selection of a fluid heating mode or a wire transmission mode can be specifically defined by combining the arrangement form and the boundary environment of the whole vehicle, and the selection is not limited herein.

In some exemplary embodiments, as shown in fig. 5, when the first heat conducting channel 3 adopts a transmission form of a heat conducting wire, a control switch 8 for controlling on/off of the first heat conducting channel 3 may be disposed on the first heat conducting channel 3, so as to conveniently control on/off of the heat conducting wire, thereby improving control flexibility of the apparatus.

In other exemplary embodiments, as shown in fig. 4, the throttle deicing device further includes a control unit (not shown) and a detection unit, and the heating device 1 and the detection unit are electrically connected to the control unit, wherein the control unit may be integrated with other control modules. For example, the control unit may be integrated in a control module of a steering wheel, which facilitates the operation of a driver, or integrated on a display screen disposed on an instrument panel, which is provided with corresponding display icons to increase the enjoyment of graphical display, or integrated in an existing PTC heater, etc., so as to achieve mutual cooperation of components in the throttle deicing device. The detection unit comprises an icing sensor 9, the icing sensor 9 is embedded on the inner wall of the shell 21 of the throttle valve 2, and the detection surface of the icing sensor 9 is flush with the inner wall of the shell 21, so that the icing sensor 9 can more accurately reflect the icing condition in the shell 21, namely, the icing sensor has the same environmental conditions, and the overall response accuracy of the throttle valve deicing device is improved. The icing sensor 9 may be any one of an optical icing sensor, an electrical icing sensor, and a mechanical icing sensor, and the specific structural form of the sensor is not limited herein.

When a fluid heating mode is adopted, the control unit can be electrically connected with the flow control valve 7 on the first heat conduction channel 3, so that the detection parameters representing ice layer information fed back by the detection unit and the opening degree of the flow control valve 7 can be tightly set, the opening degree of the flow control valve 7 can be adjusted in real time, the deicing operation efficiency is improved, and the energy waste is reduced.

Of course, the detection unit may further include a temperature sensor disposed on the inner wall of the housing 21 to detect the temperature inside the throttle valve 2 in real time, depending on the actual situation. The temperature sensor and the icing sensor 9 can also be arranged at the same time and are matched with each other for use, and of course, both are electrically connected with the control unit. When the temperature sent by the temperature sensor and received by the control unit is less than a preset temperature threshold, the temperature threshold may be set to 5 ℃ or 10 ℃, and the specific threshold is not limited herein, and the freezing sensor 9 is controlled to be turned on, and at this time, the temperature sensor may be selectively controlled to be turned off. After the heating device 1 works for a certain time, when the detection parameter of the characterization ice layer information fed back by the icing sensor 9 is smaller than the preset threshold value prestored in the control unit, the icing sensor 9 is controlled to be closed, and similarly, the heating device 1 is controlled to be closed. After the one round of deicing operation is finished, the control unit can start the temperature sensor according to the preset time in the system in advance, and then repeat the deicing operation. If the automobile type is in a low-temperature environment for a long time, the temperature sensor can be set to be in an open state, namely a working state, so that the problems that the deicing operation is invalid or the deicing effect is poor and the like caused by the fact that the preset time is far away from the super-junction ice speed are solved.

In some exemplary embodiments, as shown in fig. 4, the housing 21 is provided with mounting grooves 23 on one side or both sides of the valve plate 22 of the throttle valve 2, the mounting grooves 23 are arranged along the circumferential direction and/or the axial direction of the housing 21, and the ice sensor 9 is embedded in the mounting grooves 23, wherein the mounting grooves 23 may be grooves that are circumferentially through along the inner wall of the housing 21, that is, annular grooves, or segmented grooves that are circumferentially spaced, that is, a plurality of grooves pits, the mounting grooves 23 are axially arranged in a manner that the grooves are circumferentially arranged, and when the mounting grooves 23 are circumferentially and axially arranged on the housing 21, the cross-sectional forms of the grooves may be different, for example, one through annular groove may be provided, and a plurality of dispersed hemispherical grooves are matched. The setting area and the setting number of the mounting grooves 23 can be reasonably arranged according to different vehicle types and the icing distribution form of the throttle valve 2 in actual use. For example, in a certain vehicle type, since the throttle valve 2 is disposed non-horizontally, i.e. at a certain inclination angle with respect to the horizontal ground, so that icing is more often generated on the inner wall of the lower end of the throttle valve 2 and more distributed on the side of the valve plate 22 close to the gas inlet, more icing sensors 9 may be disposed on the inner wall of the housing 21 in the above-mentioned area, and may or may not be selectively disposed in other areas. The targeted design combined with specific practical application can achieve the effect of achieving twice the result with half the effort.

In another embodiment of the utility model, the utility model further provides a vehicle with the throttle deicing device.

In some exemplary embodiments, the vehicle further comprises a battery 5 and a second heat conduction channel 4, and the heating device 1 of the throttle deicing device and the battery 5 are connected through the second heat conduction channel 4 to provide a heat source for the battery 5 through the second heat conduction channel 4.

According to practical application, the vehicle further comprises an air conditioner (not shown in the figure) and a third heat conduction channel (not shown in the figure), and the heating device 1 of the throttle valve deicing device is connected with the air conditioner through the third heat conduction channel so as to provide a heat source for the air conditioner through the third heat conduction channel. Of course, the heating device 1 of the throttle deicer can also be used as other heat sources on the vehicle which need heat input devices, not only the battery 5 and the air conditioner.

In the description herein, the terms "upper", "lower", "one side", "the other side", "one end", "the other end", "side", "opposite", "four corners", "periphery", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing embodiments of the present invention and simplifying the description, but do not indicate or imply that the structures referred to have particular orientations, are constructed and operated in particular orientations, and thus, are not to be construed as limiting the present disclosure.

In the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "connected," "directly connected," "indirectly connected," "fixedly connected," "mounted," and "assembled" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; the terms "mounted," "connected," and "fixedly connected" may be directly connected or indirectly connected through intervening media, or may be connected through two elements. The specific meaning of the above terms herein can be understood in a specific context to one of ordinary skill in the art.

Although the embodiments disclosed herein are described above, the descriptions are only for the convenience of understanding the embodiments and are not intended to limit the disclosure. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the disclosure, and that the scope of the disclosure herein is to be limited only by the appended claims.

Claims (8)

1. The throttle valve deicing device is characterized by comprising a heating device, a throttle valve and a first heat conduction channel, wherein the first heat conduction channel is used for connecting the heating device and the throttle valve;

the heating device is arranged as a PTC heater to provide a heat source to the throttle valve through the first heat conduction channel;

a flow control valve for controlling the flow of fluid in the first heat conduction channel is arranged on the first heat conduction channel; or, a control switch for controlling the on/off of the first heat conduction channel is arranged on the first heat conduction channel.

2. A throttle deicer according to claim 1 where said heating device is provided with a heating chamber and an inlet and an outlet located on the wall of said heating chamber, said heating chamber being arranged to contain a heating medium;

the first heat conducting passage includes an input passage and an output passage, the throttle valve has a fluid passage, an inlet and an outlet of the fluid passage communicate via the input passage, and an outlet and an inlet of the fluid passage communicate via the output passage to form a circulating flow path of a heating medium.

3. A throttle deicing device as set forth in claim 2 further comprising a heating medium source, an exhaust port of the heating medium source communicating with said inlet port through a return line, an inflow port of the heating medium source communicating with said outlet port through an outflow line, said inlet passage being connected to said outflow line, said outlet passage being connected to said return line;

wherein a circulating pump is arranged on the return pipeline between the inlet and the output channel; and/or a circulating pump is arranged on the outflow pipeline between the outlet and the input channel.

4. Throttle deicer according to claim 1 where said heating means is provided with a heating chamber and an inlet and an outlet provided in the wall of said heating chamber, said heating chamber being arranged to contain a heating medium,

two ends of the first heat conduction channel are respectively connected with the inlet and the outlet to form a circulation flow path of a heating medium, and the middle part of the first heat conduction channel is in contact with the throttle valve and conducts heat.

5. A throttle de-icing assembly as defined in claim 1 wherein said first heat conducting path has one end in contact with said heating assembly and another end in contact with said throttle, said first heat conducting path being configured to conduct heat from said heating assembly to said throttle.

6. The throttle deicer set forth in claim 5 wherein said first heat conducting channel is configured as a heat conducting wire, a heat conducting strip, or a heat conducting pipe.

7. A vehicle comprising a throttle deicing device as set forth in any one of claims 1-6.

8. The vehicle of claim 7, further comprising a battery and a second thermally conductive path through which the heating device of the throttle deicer and the battery are connected to provide a source of heat to the battery through the second thermally conductive path;

and/or the heating device of the throttle valve deicing device is connected with the air conditioner through the third heat conduction channel so as to provide a heat source for the air conditioner through the third heat conduction channel.

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