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 deicing device and vehicle

technical field

The utility model relates to but is not limited to the technical field of vehicles, in particular to a throttle valve deicing device and a vehicle.

Background technique

The icing of the throttle valve is usually caused by the condensation of water vapor from the oil-gas separator in the intake manifold and the formation of frost. The frost layer in the tube melts into water droplets, which finally gather in the area near the throttle valve plate. When the vehicle is in a low temperature environment for a period of time, the area near the throttle valve plate will freeze, and eventually the throttle valve plate will be stuck.

At present, there are two main technical solutions to solve the problem of throttle valve icing. One is the throttle valve heating and heat preservation solution, for example, adding a heating water channel on the throttle valve shell, or arranging heating impedance on the throttle valve shell, etc. . The other is a mechanical deicing solution, which uses the motor of the throttle valve to drive the valve plate of the throttle valve to swing back and forth, and uses the contact and collision between the valve plate and the ice layer to achieve the purpose of deicing before the engine starts.

It should be noted that the above content belongs to the technical cognition category of the inventor, and does not necessarily constitute the prior art.

Utility model content

After researching and analyzing the two existing throttle valve deicing methods, the inventor of the present application found that both of the two deicing methods have major design drawbacks. For the throttle valve heating and heat preservation scheme, the heat source usually comes from the engine cooling system of the existing model, or a separately added electric heating heat source. As the heat source, the engine cooling system needs to start working after the engine is started, resulting in a long deicing cycle. The energy consumption is large. The use of a separate electric heating heat source increases the total number of parts on the vehicle, which invisibly increases the production cost of the vehicle. In addition, the separate electric heating heat source also occupies the layout space in the vehicle, breaking the boundaries of the original parts. environment, prolong the research and development cycle, and increase the research and development cost. For the mechanical deicing scheme, on the one hand, the service life of the throttle valve is affected. In the case of severe icing, the motor driving force of the throttle valve is not enough to achieve ice breaking, and the consistency of the ice breaking effect is not well controlled. On the one hand, mechanical de-icing has poor controllability on the size of ice cubes. For example, ice cubes of larger size are thrown into the engine cylinder, which poses a certain safety hazard.

Based on the above analysis, the inventor of the present application proposes a new design idea, that is, the existing PTC heating module of the vehicle is used as the heat source of the throttle deicing device, and while the PTC heating module performs the heating operation, the The energy input of the de-icing device. The PTC heating module of existing models is often used to heat the battery or air conditioner, especially in cold environments, the PTC heating module has already started the heating work before the engine is started, and the deicing of the throttle valve can be set at the same time as the above heating is turned on. operation, so that the deicing operation of the throttle valve is not limited by the working conditions of the engine. In addition, the heating time of the battery or the air conditioner is far beyond the time required for the deicing operation, and the time can be completely superimposed. In addition, the PTC heating module integrates the function of the heat source of the throttle deicing device, so the whole vehicle does not need to set up a separate heating source, which reduces the total number of parts, improves the integration of the whole vehicle, and preserves the original parts of other parts to the greatest extent. There is a boundary environment, which reduces the R&D cycle and cost investment of the whole vehicle.

An embodiment of the present invention provides a deicing device for a throttle valve, which includes a heating device, a throttle valve, and a first heat conduction channel connecting the heating device and the throttle valve, and the heating device is configured as a PTC heater , so as to provide a heat source to the throttle valve through the first heat conduction channel.

Another embodiment of the present invention also provides a vehicle, including the throttle valve deicing device.

After adopting the above-mentioned technical scheme, the embodiment of the present utility model has the following beneficial effects:

By borrowing the existing PTC heater on the vehicle as the heat source of the throttle deicing device, there is no need to set up a separate heating heat source, reducing the total number of vehicle parts, effectively shortening the development cycle and saving development costs.

Other aspects will become apparent upon reading and understanding of the drawings and detailed description.

Description of drawings

The accompanying drawings are used to provide a further understanding of the technical solutions of the present invention, and constitute a part of the description. They are used to explain the technical solutions of the present invention together with the embodiments of the present invention, and do not constitute a limitation to the technical solutions of the present invention.

1 is a schematic diagram 1 of the principle of a throttle valve deicing device according to an embodiment of the present invention;

FIG. 2 is a second schematic diagram of the principle of the throttle valve deicing device according to some exemplary embodiments of the present invention;

3 is a partial cross-sectional view 1 of a throttle valve deicing device according to some exemplary embodiments of the present invention;

4 is a partial cross-sectional view 2 of a throttle valve deicing device according to some exemplary embodiments of the present invention;

FIG. 5 is a schematic diagram 3 of the principle of the throttle valve deicing device according to some exemplary embodiments of the present invention.

Reference number:

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

2-throttle valve, 21-housing, 22-valve plate, 23-installation groove;

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

4- The second heat conduction channel;

5 - battery;

6-Heating medium source, 61-Return pipeline, 62-Outflow pipeline;

7-flow control valve;

8-Control switch;

9 - icing sensor;

10 - Circulation pump.

Detailed ways

The technical solutions of the present invention will be further described below with reference to the accompanying drawings and through specific embodiments. It can be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

In the embodiment of the present invention, as shown in FIG. 1 , a throttle valve deicing device is provided, which includes a heating device 1 , a throttle valve 2 , and a first heat conducting device connecting the heating device 1 and the housing 21 of the throttle valve 2 . Passage 3 , the heating device 1 is configured as a PTC heater to provide a heat source to the throttle valve 2 through the first heat conduction passage 3 .

PTC (Positive Temperature Coefficient, positive temperature coefficient). Due to its excellent constant temperature heating characteristics, PTC heaters are more and more widely used in vehicles, and are often used to heat components such as batteries or air conditioners. The principle of the PTC heater is that after the PTC heater is powered on, the self-heating temperature increases the resistance value and enters the transition zone, and the surface temperature of the PTC heater will remain constant, which is only related to the Curie temperature of the PTC heater and the applied voltage. , and has nothing to do with the ambient temperature, therefore, the reliability of the PTC heater is higher.

The throttle valve deicing device provided in the embodiment of the present invention is used as the heat source of the throttle valve deicing device by borrowing the existing PTC heater on the vehicle. Therefore, there is no need to provide a separate heating heat source, reducing the need for the entire vehicle. The total number of parts greatly shortens the development cycle and effectively saves development costs. In addition, compared with the scheme using mechanical deicing, the above deicing scheme will not affect the design life of the throttle valve 2, and the original solid ice is converted into non-solid water or water vapor, and the deicing effect is better, and the The consistency of the controllability is strong, and it can also effectively avoid other safety hazards caused by large-sized ice cubes being thrown into the engine cylinder after mechanical deicing.

In some exemplary embodiments, as shown in FIGS. 2 and 3 , the heating device 1 is provided with a heating chamber 11 , and an inlet 12 and an outlet 13 provided on the wall of the heating chamber 11 , and the heating chamber 11 is configured to contain a heating medium. , the first heat conduction channel 3 includes an input channel 31 and an output channel 32, the throttle valve 2 has a fluid channel, the inlet and outlet 13 of the fluid channel are communicated through the input channel 31, and the outlet and the inlet 12 of the fluid channel are communicated through the output channel 32 to form Circulation flow path of heating medium.

The above heating device 1 can be heated by water. It is not limited that the heated material is only water. It should be understood in a broad sense, that is, it generally refers to all flowable liquids used in vehicles, such as common coolants. . According to the actual situation, gas can also be used as the medium for the propagation of the heat source, for example, oxygen, etc. Therefore, the heating medium can be liquid or gas, which is not limited here. Wherein, the first heat conduction channel 3 is designed to have a channel for fluid circulation, and the introduction is made with liquid as a medium here. One end of the input channel 31 is connected to the housing 21 , and the other end of the input channel 31 is connected to the outlet 13 , forming an input channel for delivering cooling liquid to the throttle valve 2 . One end of the output channel 32 is connected to the housing 21, and the other end of the output channel 32 is connected to the inlet 12 to form a cooling liquid return passage from the throttle valve 2, that is, the input passage and the return passage form a liquid circulation flow path .

At the connection between the inlet 12 and the outlet 13, and at the corresponding joints provided on the housing 21, a separate connection adapter can be provided, that is, a through hole that is not directly arranged on the main body of the part, which can improve the joint installation and maintenance and replacement. Convenience, and it is also convenient to seal the connection.

Of course, the interfaces of the above-mentioned input passage and return passage on the housing 21 are not the same, and a diagonal arrangement can be adopted to increase the total area and the total contact time of the liquid flowing through the housing 21, and improve the removal of ice efficiency.

In addition, the heating device 1 can adopt a closed structure as shown in FIG. 3 , that is, a relatively closed heating chamber 11 is provided, or the existing cooling circulation system on the vehicle can be used to combine the PTC heater and the cooling circulation system. In combination, a branch is branched from the existing cooling circulation system, and the PTC heater is used to provide it with a heat source, so as to perform deicing operation on the frozen throttle valve 2 .

The input channel 31 and the output channel 32 can be selected from rubber hoses. Since the rubber hose is composed of an inner rubber layer, a steel wire braided layer and an outer rubber layer, it has strong flexibility to adapt to various vehicle layout types. , with strong design flexibility.

In some exemplary embodiments, as shown in FIG. 4 , a liquid channel is provided on the outer wall of the housing 21 of the throttle valve 2 , the inlet of the liquid channel is communicated with the outlet 13 through the input channel 31 , and the outlet of the liquid channel is connected with the inlet 12 through the output channel 32 . The liquid passages are spirally arranged along the outer wall of the housing 21 of the throttle valve 2 , or are arranged along the axial direction of the housing 21 of the throttle valve 2 . Wherein, when the liquid channel is arranged along the axial direction of the housing 21 of the throttle valve 2, multiple liquid channels can be arranged, that is, the plurality of liquid channels are arranged along the outer wall of the housing 21 in the circumferential direction. In this design state, the inlet of the liquid channel is always The liquid inlet, of course, the liquid channel outlet is also the total liquid outlet, and a transition flow path can be provided between the total liquid inlet and each liquid channel. As shown in FIG. 4 , the solution is shown by taking the axial arrangement of the liquid passages along the outer wall of the housing 21 of the throttle valve 2 as an example, and the arrangement of other liquid passages may refer to the design.

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

In some exemplary embodiments, as shown in FIG. 2 , to provide power for the flow of the circulating liquid in the circulating flow path, a circulating pump 10 can be added to the flow path, that is, on the return line 61 between the inlet 12 and the output channel 32 A circulating pump 10 is provided, and/or a circulating pump 10 is provided on the outflow line 62 between the outlet 13 and the input channel 31 . Among them, only the circulating pump 10 set on the outflow pipeline 62 between the outlet 13 and the input channel 31 is shown in the figure, and the circulating pump 10 on other branches can be set with reference to the specific setting position and specific setting of the circulating pump 10 The quantity is not limited here.

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

In some exemplary embodiments, both ends of the first heat conduction channel 3 are respectively arranged to be connected with the inlet 12 and the outlet 13 to form a circulating flow path of the heating medium, and the middle part of the first heat conduction channel 3 is in contact with the throttle valve 2 . , heat conduction. Wherein, the middle part of the first heat conduction channel 3 is the other area except the two end points of the channel, and is not limited to the midpoint of the first heat conduction channel 3 . The first heat conduction channel 3 is set as a liquid channel, and the heat is transferred to the throttle valve 2 by means of the conductivity of the liquid medium. The first heat conduction channel 3 can be wrapped around the throttle valve 2, of course, other contact Match form.

In some exemplary embodiments, as shown in FIG. 5 , one end of the first heat conduction channel 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 conduction channel 3 is arranged to conduct the heat of the heating device 1 to the heating device 1 . Throttle 2. Wherein, the first heat-conducting channel 3 is configured as a heat-conducting wire, a heat-conducting tape or a heat-conducting pipe.

The entire throttle deicing device does not use the heating method of water or air fluid, but adopts the connection method of wire. For example, the heating device 1 can directly transmit current to the casing 21 of the throttle valve 2 through the wire. Since the casing 21 is often made of metal materials, such as steel, aluminum, etc. The ice layer near the valve plate 22 of the valve 21 and even the entire throttle valve 2 performs a better deicing operation.

In actual development, the development of a model involves a variety of modes, such as a new development model, an expanded development model, and an upgrade of the basic model. Based on one development mode, there are also various combinations for the layout of components that realize all functions. For example, the layout of a single engine can be divided into five categories: front-engine front-drive, front-engine Rear drive, engine rear drive, mid engine rear drive, full drive. For the heating device 1, that is, the PTC heater is usually arranged in the front wall, that is, in the "sandwich cavity" formed by the front wall of the body-in-white and the accessories of the vehicle interior, or in the "sandwich cavity" between the front wall of the body-in-white and the cabin parts, Therefore, the connection form of the PTC heater and the throttle valve 2 should also be adapted to different vehicle layout forms. When the distance between the PTC heater and the throttle valve 2 is relatively long, in order to reduce the heat loss in the transmission path, the method of water heating can be adopted, that is, the fluid circulation can be used to realize the conduction of energy. When the distance between the PTC heater and the throttle valve 2 is relatively close, the transmission method of heat conduction wire or other solid transmission methods can be used, which can be understood in a broad sense here, that is, a non-fluid transmission medium. When the arrangement space between the PTC heater and the throttle valve 2 is narrow, the transmission method of the heat conducting wire can be adopted. In the design and development of an actual vehicle model, it is possible to define whether to choose the fluid heating method or the wire transmission method in combination with the layout of the vehicle and the boundary environment, which is not limited here.

In some exemplary embodiments, as shown in FIG. 5 , when the first heat conduction channel 3 adopts the transmission form of the heat conduction wire, a control switch 8 for controlling the on and off of the first heat conduction channel 3 may be arranged on the first heat conduction channel 3 , In order to conveniently control the connection or disconnection of the thermal wire, the control flexibility of the device is improved.

In other exemplary embodiments, as shown in FIG. 4 , the throttle valve deicing device further includes a control unit (not shown in the figure) and a detection unit, and the heating device 1 and the detection unit are both electrically connected to the control unit, wherein the control unit The unit can be integrated with other control modules. For example, the control unit can be integrated in the control module of the steering wheel to facilitate the operation of the driver, or integrated on the display screen set on the instrument panel to set corresponding display icons to increase the fun of graphical display, or integrated in the current In some PTC heaters, etc., it is enough to realize the mutual cooperation of various components in the throttle deicing device. The detection unit includes an icing sensor 9, the icing sensor 9 is embedded on the inner wall of the housing 21 of the throttle valve 2, and the detection surface of the icing sensor 9 is flush with the inner wall of the housing 21, so that the icing sensor 9 can be more efficient. The icing condition in the housing 21 is accurately reflected, that is, the same environmental conditions are present, and the overall response accuracy of the throttle valve deicing device is improved. The icing sensor 9 may be set to any one of an optical icing sensor, an electrical icing sensor, and a mechanical icing sensor, and the specific structure of the sensor is not limited herein.

When the method of fluid heating is adopted, the control unit can be electrically connected to the flow control valve 7 on the first heat conduction channel 3, and the flow control valve 7 can be operated according to the detection parameters representing the ice layer information fed back by the detection unit and the opening of the flow control valve 7. The tight setting can adjust the opening of the flow control valve 7 in real time, improve the deicing operation efficiency and reduce the waste of energy.

Of course, according to the actual situation, the detection unit may further include a temperature sensor, which is arranged on the inner wall of the housing 21 to detect the temperature in the throttle valve 2 in real time. The temperature sensor and the icing sensor 9 can also be provided at the same time, and the two are used in cooperation with each other. Of course, both of them are electrically connected to the control unit. When the temperature sent by the temperature sensor received by the control unit is lower than the preset temperature threshold, the temperature threshold can be set to 5°C or 10°C, etc. The specific threshold is not limited here, and the icing sensor 9 is controlled to be turned on. The temperature sensor is off. After the heating device 1 works for a certain period of time, when the detection parameter representing the ice layer information fed back by the icing sensor 9 is smaller than the preset threshold value pre-stored in the control unit, the icing sensor 9 is controlled to be turned off, and the heating device 1 is similarly controlled to be turned off. After the above-mentioned round of deicing operation ends, the control unit may turn on the temperature sensor according to the time preset in the system in advance, and then repeat the above-mentioned deicing operation. If the vehicle model is in a low temperature environment for a long time, the temperature sensor can be set to be always on, that is, in a working state, so as to avoid problems such as failure of deicing operation or poor deicing effect caused by the preset time far exceeding the icing speed.

In some exemplary embodiments, as shown in FIG. 4 , the housing 21 is located on one side or both sides of the valve plate 22 of the throttle valve 2 with installation grooves 23 , and the installation grooves 23 are along the circumferential direction of the housing 21 , and / or axially arranged, the icing sensor 9 is embedded in the installation groove 23, wherein the installation groove 23 may be a groove running through the inner wall of the housing 21 in the circumferential direction, that is, an annular groove, or it may be divided along the circumferential direction. The segment groove body, that is, a plurality of groove pits, the axial arrangement of the installation groove 23 is the same as that of the circumferential arrangement. To be different, for example, it can be a through annular groove body matched with a plurality of scattered hemispherical grooves and so on. According to different vehicle models and the icing distribution form of the throttle valve 2 in actual use, the installation area and installation number of the installation grooves 23 can be reasonably arranged. For example, for a certain model, since the throttle valve 2 is not set horizontally, that is, there is a certain angle of inclination with the horizontal ground, the icing occurs more often on the inner wall of the lower end of the throttle valve 2, and is more distributed on the valve plate 22 On the side close to the gas inlet, correspondingly, more icing sensors 9 may be provided on the inner wall of the housing 21 in the above-mentioned area, and correspondingly, other areas may be selectively provided or not provided. Targeted design combined with specific practical applications can achieve multiplier effects with half the effort.

In another embodiment of the present invention, there is also provided a vehicle having any of the above-mentioned throttle valve deicing devices.

In some exemplary embodiments, the above-mentioned vehicle further includes 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 , so as to communicate with the battery through the second heat conduction channel 4 . 5 Provide a heat source.

According to the actual application, the vehicle also includes 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 deicing device and the air conditioner are connected through the third heat conduction channel to pass the The third heat conduction channel provides a heat source to the air conditioner. Of course, the heating device 1 of the throttle deicing device can also be used as a heat source for other heat input devices on the vehicle, not limited to 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" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the referred structure has a specific orientation or a specific orientation. The orientation is constructed and operated, and therefore should not be construed as limiting the text.

In the description of the embodiments of the present invention, unless otherwise expressly specified and limited, the terms "connection", "direct connection", "indirect connection", "fixed connection", "installation" and "assembly" should be interpreted broadly , for example, it can be a fixed connection, a detachable connection, or an integral connection; the terms "installation", "connection" and "fixed connection" can be directly connected or indirectly connected through an intermediate medium, which can be two Connectivity within the element. For those of ordinary skill in the art, the specific meanings of the above terms in the text can be understood in specific situations.

Although the embodiments disclosed herein are as above, the described contents are only the embodiments adopted to facilitate the understanding of this document, and are not intended to limit this document. Any person skilled in the art to which this article belongs, without departing from the spirit and scope disclosed in this article, can make any modifications and changes in the form and details of the implementation, but the scope of patent protection in this article must still be based on the appended The claims defined shall prevail.

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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