Heating device, range extender assembly and automobile

Abstract

The utility model relates to a heating device, a range extender assembly and an automobile, and relates to the technical field of engines, the heating device is used for heating a throttle valve, a crankcase ventilation pipe and a crankcase forced ventilation pipe, the heating device comprises a first heating assembly, a second heating assembly and a third heating assembly, and the first heating assembly is arranged on the throttle valve; the second heating assembly is arranged on the crankcase ventilation pipe; the third heating assembly is arranged on the forced ventilation pipe of the crankcase; the first heating assembly, the second heating assembly and the third heating assembly are electrically connected with a power source. In cold weather, after the throttle valve, the crankcase ventilation pipe and the crankcase forced ventilation pipe are frozen and blocked, the power supply supplies power to the first heating assembly, the second heating assembly and the third heating assembly, so that the first heating assembly emits heat for icebreaking and unfreezing of the throttle valve, and the second heating assembly emits heat for icebreaking and unfreezing of the crankcase ventilation pipe; and the third heating assembly emits heat to break ice and unfreeze the forced ventilation pipe of the crankcase, so that the engine can be normally used.

Description

Technical Field

[0001] The present application relates to the field of engine technology, and in particular to a heating device, a range extender assembly and a vehicle. Background Art

[0002] The exhaust gas introduced into the intake duct by the engine through the Exhaust Gas Recirculation (EGR) system or the Positive Crankcase Ventilation (PCV) system is very hot. When the high-temperature exhaust gas approaches the throttle valve with a lower temperature, the gaseous water carried in the exhaust gas will condense into liquid water. In cold weather, after being left for a period of time, the condensed water will freeze and form ice blockage, causing the throttle valve, crankcase ventilation pipe and crankcase forced ventilation pipe to freeze and block, resulting in poor air intake, the engine cannot start, and the range extender cannot operate.

[0003] At present, in order to prevent the engine from failing to start, a heat preservation water jacket is usually installed at the intake manifold and the throttle body, and the engine coolant is passed into the heat preservation water jacket to keep the crankcase and the throttle warm and throttle thawed. However, the premise of using the heat preservation water jacket is that the engine needs to be started first to allow the coolant to heat up and break the ice. If the throttle, crankcase ventilation pipe and crankcase forced ventilation pipe are already frozen and blocked, the engine cannot be started. Utility Model Content

[0004] Based on this, a heating device, a range extender assembly and a vehicle are provided. When the throttle valve, the crankcase ventilation pipe and the crankcase forced ventilation pipe are frozen and blocked, the heating device can heat and thaw the throttle valve, the crankcase ventilation pipe and the crankcase forced ventilation pipe so that the engine can start normally.

[0005] To this end, in a first aspect, an embodiment of the present application provides a heating device for heating a throttle valve, a crankcase ventilation pipe and a crankcase forced ventilation pipe, the heating device comprising: a first heating component, arranged on the throttle valve; a second heating component, arranged on the crankcase ventilation pipe; a third heating component, arranged on the crankcase forced ventilation pipe; the first heating component, the second heating component and the third heating component are electrically connected to a power supply.

[0006] In one embodiment, the first heating component is disposed around a circumference of the throttle valve.

[0007] In one embodiment, the second heating assembly is disposed on a peripheral side of the crankcase ventilation pipe, and the second heating assembly extends along an axial direction of the crankcase ventilation pipe.

[0008] In one of the embodiments, the third heating assembly is disposed on a peripheral side of the crankcase positive ventilation pipe, and the third heating assembly extends along the axial direction of the crankcase positive ventilation pipe.

[0009] In one embodiment, the first heating component includes a first heating element and a first protective cover, the first heating element is electrically connected to the power supply, and the first protective cover wraps the first heating element; and / or, the second heating component includes a second heating element and a second protective cover, the second heating element is electrically connected to the power supply, and the second protective cover wraps the second heating element; and / or, the third heating component includes a third heating element and a third protective cover, the third heating element is electrically connected to the power supply, and the third protective cover wraps the third heating element.

[0010] In one embodiment, a control component is further included, and the control component includes a controller and a control switch, the controller is electrically connected to the control switch, the control switch is electrically connected to the power supply, or the control switch is electrically connected to the first heating component, the second heating component and the third heating component.

[0011] In one of the embodiments, a first sensor electrically connected to the controller is further included, and the first sensor is used to detect the ambient temperature.

[0012] In one of the embodiments, a second sensor electrically connected to the controller is further included, and the second sensor is used to detect the temperature of the throttle valve and / or the crankcase ventilation pipe and / or the temperature of the crankcase forced ventilation pipe.

[0013] In a second aspect, an embodiment of the present application provides a range extender assembly, comprising a throttle valve, a crankcase ventilation pipe, a crankcase forced ventilation pipe, and a heating device as described in any of the above.

[0014] In a third aspect, an embodiment of the present application provides a vehicle, comprising the range extender assembly described above.

[0015] According to the heating device, range extender assembly and automobile provided by the embodiment of the present application, the heating device is used to heat the throttle, the crankcase ventilation pipe and the crankcase forced ventilation pipe, and the heating device includes a first heating component, a second heating component and a third heating component, the first heating component is arranged on the throttle; the second heating component is arranged on the crankcase ventilation pipe; the third heating component is arranged on the crankcase forced ventilation pipe; the first heating component, the second heating component and the third heating component are electrically connected to the power supply. In cold weather, after the throttle, the crankcase ventilation pipe and the crankcase forced ventilation pipe are frozen and blocked, the power supply can be started so that the power supply supplies power to the first heating component, the second heating component and the third heating component through the wire, so that the first heating component heats up to break ice and thaw the throttle, the second heating component heats up to break ice and thaw the crankcase ventilation pipe, and the third heating component heats up to break ice and thaw the crankcase forced ventilation pipe, so that the engine can be used normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram showing the structure of a heating device provided in an embodiment of the present application is shown;

[0017] Figure 2 A schematic diagram showing the structure of a throttle valve and a first heating assembly provided in an embodiment of the present application is shown;

[0018] Figure 3 A schematic diagram showing the structure of the crankcase ventilation pipe and the second heating assembly provided by the present application is shown;

[0019] Figure 4 A schematic diagram showing the crankcase positive ventilation tube and the third heating assembly provided by the present application.

[0020] Description of reference numerals:

[0021] 1. Throttle valve; 2. Crankcase ventilation pipe; 3. Crankcase forced ventilation pipe; 4. First heating component; 41. First joint; 5. Second heating component; 51. Second joint; 52. Second heating element; 53. Second protective cover; 6. Third heating component; 61. Third joint; 7. Power supply; 8. Control component; 81. Controller; 82. Control switch. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0023] It should be noted that the illustrations provided in this embodiment are only used to schematically illustrate the basic concept of the present invention. Therefore, the drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0024] The structures, proportions, sizes, etc. illustrated in the drawings in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantive technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0025] The directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "middle", "longitudinal", "lateral", "horizontal", "inner", "outer", "radial", "circumferential" and the like in this specification are based on the directions or positional relationships shown in the drawings and are only for the convenience of simplifying the description. They do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0026] In cold weather, after the car has been left idle for a period of time, the residual gaseous moisture in the throttle valve 1, crankcase ventilation pipe 2 and crankcase forced ventilation pipe 3 will condense into ice to form ice blockage, resulting in blockage of the throttle valve 1, crankcase ventilation pipe 2 and crankcase forced ventilation pipe 3, poor air intake, inability to start the engine and inability to operate the range extender.

[0027] To solve the above problems, refer to Figure 1 , Figure 1 A schematic diagram of the structure of a heating device provided in an embodiment of the present application is shown. The embodiment of the present application provides a heating device, which is used to heat a throttle valve 1, a crankcase ventilation pipe 2, and a crankcase forced ventilation pipe 3. The heating device includes a first heating component 4, a second heating component 5, and a third heating component 6. The first heating component 4 is arranged on the throttle valve 1; the second heating component 5 is arranged on the crankcase ventilation pipe 2; the third heating component 6 is arranged on the crankcase forced ventilation pipe 3; the first heating component 4, the second heating component 5, and the third heating component 6 are electrically connected to a power source 7.

[0028] It should be understood that the heating device includes a first heating component 4, a second heating component 5 and a third heating component 6. The first heating component 4 is arranged at the throttle 1. The first heating component 4 can be arranged on the outside of the throttle 1 or on the inside of the throttle 1. This application does not limit this. However, if the first heating component 4 is arranged on the outside of the throttle 1, it is more convenient to install the first heating component 4. The first heating component 4 and the throttle 1 can be directly fitted and connected or indirectly or spaced apart. This application does not limit this. The first heating component 4 can be in the shape of a block, a ring or a long strip, etc. This application does not limit the shape of the first heating component 4. When the throttle 1 needs to be thawed or heated, the first heating component 4 generates heat and heats the throttle 1 to increase the temperature of the throttle 1, thereby melting the ice resistance at the throttle 1.

[0029] The second heating component 5 is arranged at the crankcase ventilation pipe 2. The second heating component 5 can be arranged on the outside or inside of the crankcase ventilation pipe 2, and this application does not impose any restrictions. However, if the second heating component 5 is arranged on the outside of the crankcase ventilation pipe 2, it is more convenient to install the second heating component 5. The second heating component 5 and the crankcase ventilation pipe 2 can be directly fitted and connected or indirectly or spaced apart, and this application does not impose any restrictions. The second heating component 5 can be in the shape of a block, a ring, or a long strip, etc., and this application does not impose any restrictions on the shape of the second heating component 5. When the crankcase ventilation pipe 2 needs to be thawed or heated, the second heating component 5 generates heat and heats the crankcase ventilation pipe 2, thereby increasing the temperature of the crankcase ventilation pipe 2, thereby melting the ice resistance at the crankcase ventilation pipe 2.

[0030] The third heating component 6 is arranged at the crankcase forced ventilation pipe 3. The third heating component 6 can be arranged on the outside or inside of the crankcase forced ventilation pipe 3, and this application does not impose any restrictions. However, if the third heating component 6 is arranged on the outside of the crankcase forced ventilation pipe 3, it is more convenient to install the third heating component 6; the third heating component 6 and the crankcase forced ventilation pipe 3 can be directly fitted and connected or indirectly or spaced apart, and this application does not impose any restrictions. The third heating component 6 can be in the shape of a block, a ring, or a long strip, etc., and this application does not impose any restrictions on the shape of the third heating component 6. When the crankcase forced ventilation pipe 3 needs to be thawed or heated, the third heating component 6 generates heat and heats the crankcase forced ventilation pipe 3, thereby increasing the temperature of the crankcase forced ventilation pipe 3, thereby melting the ice resistance at the crankcase forced ventilation pipe 3.

[0031] The power supply 7 may be a power supply component, such as a battery, a generator, or other components that can provide power. The power supply 7 may be the power supply of other components in the car, or may be an external power supply, and this application does not limit this. The power supply 7 is electrically connected to the first heating component 4, the second heating component 5, and the third heating component 6, that is, the power supply 7 is connected to the first heating component 4 through a wire to supply power to the first heating component 4, the power supply 7 is connected to the second heating component 5 through a wire to supply power to the second heating component 5, and the power supply 7 is connected to the third heating component 6 through a wire to supply power to the third heating component 6.

[0032] In cold weather, after the throttle valve 1, the crankcase ventilation pipe 2 and the crankcase forced ventilation pipe 3 are blocked by ice, the power supply 7 can be started so that the power supply 7 supplies power to the first heating component 4, the second heating component 5 and the third heating component 6 through electric wires, so that the first heating component 4 heats up to break ice and thaw the throttle valve 1, the second heating component 5 heats up to break ice and thaw the crankcase ventilation pipe 2, and the third heating component 6 heats up to break ice and thaw the crankcase forced ventilation pipe 3, so that the engine can be used normally.

[0033] Reference Figure 1 and Figure 2 , Figure 2 The schematic diagram of the structure of the throttle valve and the first heating component provided in the embodiment of the present application is shown. In some optional embodiments, the first heating component 4 is arranged around the circumference of the throttle valve 1. Compared with the first heating component 4 being arranged in a block shape, the first heating component 4 heats the throttle valve 1 in a wider range and more evenly, thereby improving the effect of the first heating component 4 heating the throttle valve 1 and further improving the ice-breaking effect of the throttle valve 1.

[0034] In one example, the first heating assembly 4 may be arranged in a ring shape, and the first heating assembly 4 is sleeved on the outer peripheral side of the throttle valve 1 and / or located on the inner peripheral side of the throttle valve 1 .

[0035] In one example, the first heating assembly 4 may be disposed in a spiral shape, such that the first heating assembly 4 is wound around the outer peripheral side of the throttle valve 1 and / or is located at the inner peripheral side of the throttle valve 1 .

[0036] Reference Figure 1 and Figure 3 , Figure 3The schematic diagram of the structure of the crankcase ventilation pipe and the second heating assembly provided by the present application is shown. In some optional embodiments, the second heating assembly 5 is arranged on the peripheral side of the crankcase ventilation pipe 2, and the second heating assembly 5 extends along the axial direction of the crankcase ventilation pipe 2. The second heating assembly 5 extends along the extension direction of the crankcase ventilation pipe 2. Compared with the block-shaped arrangement of the second heating assembly 5, the arrangement of the present application allows the crankcase ventilation pipe 2 to be heated along the length direction, which expands the heating range of the crankcase ventilation pipe 2 by the second heating assembly 5, and also makes the second heating assembly 5 heat the crankcase ventilation pipe 2 more uniformly, improves the heating effect of the second heating assembly 5 on the crankcase ventilation pipe 2, and further improves the ice-breaking effect of the crankcase ventilation pipe 2.

[0037] In one example, the second heating assembly 5 is arranged in a strip shape and extends along the extension direction of the crankcase ventilation pipe 2, and the second heating assembly 5 is arranged on the outside and / or inside of the crankcase ventilation pipe 2. There may be multiple second heating assemblies 5, and the multiple second heating assemblies 5 are arranged at intervals along the circumference of the crankcase ventilation pipe 2, so as to further improve the heating effect of the second heating assembly 5 on the crankcase ventilation pipe 2.

[0038] In one example, the second heating assembly 5 is arranged in a spiral shape and is wound around the outer circumference of the crankcase ventilation pipe 2 , or is located on the inner circumference of the crankcase ventilation pipe 2 .

[0039] In one example, the second heating assembly 5 is arranged in a tubular shape, and the second heating assembly 5 can be sleeved on the outer peripheral side of the crankcase ventilation pipe 2, and the second heating assembly 5 can also be located on the inner side of the crankcase ventilation pipe 2.

[0040] Reference Figure 1 and Figure 4 , Figure 4 The schematic diagram of the crankcase forced ventilation pipe and the third heating assembly provided by the present application is shown. In some optional embodiments, the third heating assembly 6 is arranged on the peripheral side of the crankcase forced ventilation pipe 3, and the third heating assembly 6 extends along the axial direction of the crankcase forced ventilation pipe 3. The third heating assembly 6 extends along the extension direction of the crankcase forced ventilation pipe 3. Compared with the block-shaped arrangement of the third heating assembly 6, the arrangement of the present application allows the crankcase forced ventilation pipe 3 to be heated along the length direction, which expands the heating range of the crankcase forced ventilation pipe 3 by the third heating assembly 6, and also makes the third heating assembly 6 heat the crankcase forced ventilation pipe 3 more uniformly, improves the heating effect of the third heating assembly 6 on the crankcase forced ventilation pipe 3, and further improves the ice-breaking effect of the crankcase forced ventilation pipe 3.

[0041] In one example, the third heating assembly 6 is arranged in a strip shape and extends along the extension direction of the crankcase forced ventilation pipe 3, and the third heating assembly 6 is arranged on the outside and / or inside of the crankcase forced ventilation pipe 3. There may be multiple third heating assemblies 6, and the multiple third heating assemblies 6 are arranged at intervals along the circumference of the crankcase forced ventilation pipe 3, so as to further improve the heating effect of the third heating assembly 6 on the crankcase forced ventilation pipe 3.

[0042] In one example, the third heating assembly 6 is arranged in a spiral shape and is wound around the outer circumference of the PCV pipe 3 , or is located on the inner circumference of the PCV pipe 3 .

[0043] In one example, the third heating assembly 6 is tubular and can be sleeved on the outer peripheral side of the crankcase forced ventilation pipe 3 , or the third heating assembly 6 can be located on the inner side of the crankcase forced ventilation pipe 3 .

[0044] Reference Figure 1 and Figure 2 In some optional embodiments, the first heating component 4 includes a first heating element (not shown in the figure) and a first protective sleeve (not shown in the figure), the first heating element is electrically connected to the power supply 7, and the first protective sleeve wraps the first heating element. The first heating element can be a heating element such as a resistance wire, the first heating element is electrically connected to the power supply 7, and the power supply 7 supplies power to the first heating element so that the first heating element generates heat. The first protective sleeve is provided with the first heating element, and the first protective sleeve can protect the first heating element to prevent the first heating element from being damaged by the outside world, thereby increasing the service life of the first heating element. Since the material of the throttle valve 1 can be plastic, the setting of the first protective sleeve can also protect the throttle valve 1, thereby preventing the first heating element from directly contacting the throttle valve 1, causing the temperature of the throttle valve 1 to be too high, causing damage to the throttle valve 1, and increasing the service life of the throttle valve 1. Among them, the material of the first protective sleeve can be both resistant to high temperatures and capable of heat transfer, and a polyolefin outer sleeve, a fluoroplastic outer sleeve, etc. can be selected, and this application does not make any restrictions.

[0045] Furthermore, the first heating component 4 also includes a first connector 41 electrically connected to the first heating element, and the first connector 41 is detachably connected to the electric wire. The setting of the first connector 41 facilitates the connection and disassembly of the first heating component 4 and the power supply 7, and facilitates the replacement and maintenance of the first heating component 4 or the power supply 7.

[0046] Reference Figure 1 and Figure 3In some optional embodiments, the second heating assembly 5 includes a second heating element 52 and a second protective sleeve 53, the second heating element 52 is electrically connected to the power supply 7, and the second protective sleeve 53 wraps the second heating element 52. The second heating element 52 can be a heating element such as a resistance wire, the second heating element 52 is electrically connected to the power supply 7, and the power supply 7 supplies power to the second heating element 52 to make the second heating element 52 generate heat. The second protective sleeve 53 is sleeved with the second heating element 52, and the second protective sleeve 53 can protect the second heating element 52 to prevent the second heating element 52 from being damaged by the outside world, thereby improving the service life of the second heating element 52. Since the crankcase ventilation pipe 2 is a rubber hose, the second protective sleeve 53 can also protect the crankcase ventilation pipe 2 to prevent the second heating element 52 from directly contacting the crankcase ventilation pipe 2, so that the temperature of the crankcase ventilation pipe 2 is too high, causing damage to the crankcase ventilation pipe 2, thereby improving the service life of the crankcase ventilation pipe 2. Among them, the material of the second protective sheath is both resistant to high temperatures and capable of heat transfer, and a polyolefin outer sheath, a fluoroplastic outer sheath, etc. may be selected, and this application does not impose any restrictions.

[0047] Furthermore, the second heating component 5 also includes a second connector 51 electrically connected to the second heating element 52, and the second connector 51 is detachably connected to the electric wire. The setting of the second connector 51 facilitates the connection and disassembly of the second heating component 5 and the power supply 7, and facilitates the replacement and maintenance of the second heating component 5 or the power supply 7.

[0048] Reference Figure 1 and Figure 4 In some optional embodiments, the third heating assembly 6 includes a third heating element (not shown in the figure) and a third protective sleeve (not shown in the figure), the third heating element is electrically connected to the power supply 7, and the third protective sleeve wraps the third heating element. The third heating element can be a heating element such as a resistance wire, the third heating element is electrically connected to the power supply 7, and the power supply 7 supplies power to the third heating element to make the third heating element heat up. The third protective sleeve is provided with the third heating element, and the third protective sleeve can protect the third heating element to avoid the third heating element from being damaged by the outside world, thereby improving the service life of the third heating element. Since the crankcase forced ventilation pipe is a rubber hose, the setting of the third protective sleeve can also protect the crankcase forced ventilation pipe 3, thereby preventing the third heating element from directly contacting the crankcase forced ventilation pipe 3, so that the temperature of the crankcase forced ventilation pipe 3 is too high, causing damage to the crankcase forced ventilation pipe 3, and improving the service life of the crankcase forced ventilation pipe 3. Among them, the material of the third protective sleeve can be both resistant to high temperature and capable of heat transfer, and a polyolefin outer sleeve, a fluoroplastic outer sleeve, etc. can be selected, and this application does not make any restrictions.

[0049] Furthermore, the third heating component 6 also includes a third connector 61 electrically connected to the third heating element, and the third connector 61 is detachably connected to the electric wire. The setting of the third connector 61 facilitates the connection and disassembly of the third heating component 6 and the power supply 7, and facilitates the replacement and maintenance of the third heating component 6 or the power supply 7.

[0050] Reference Figure 1 In some optional embodiments, a control component 8 is further included, and the control component 8 includes a controller 81 and a control switch 82. The controller 81 is electrically connected to the control switch 82, and the control switch 82 is electrically connected to the power supply 7, or the control switch 82 is electrically connected to the first heating component 4, the second heating component 5, and the third heating component 6. The user can control the control switch 82 through the controller 81, thereby controlling the working conditions of the first heating component 4, the second heating component 5, and the third heating component 6. Among them, the controller 81 is electrically connected to the control switch 82, which can be connected by wires or by wireless signals. This application does not limit it. The controller 81 can control the opening and closing of the control switch 82, and the controller 81 can also be electrically connected to other components.

[0051] In one example, the control switch 82 can be electrically connected to the power supply 7, that is, the control switch 82 can control the on and off of the power supply 7, and then control the power supply of the power supply 7 to the first heating component 4, the second heating component 5 and the third heating component 6, thereby controlling the working conditions of the first heating component 4, the second heating component 5 and the third heating component 6.

[0052] In one example, one control switch 82 is provided, and one control switch 82 is electrically connected to the first heating component 4, the second heating component 5 and the third heating component 6, that is, one control switch 82 can directly control the working conditions of the first heating component 4, the second heating component 5 and the third heating component 6.

[0053] In one example, a plurality of control switches 82 are provided, for example, three control switches 82 are provided, and the three control switches 82 are electrically connected to the first heating component 4, the second heating component 5, and the third heating component 6, respectively, that is, the three control switches 82 respectively control the working conditions of the first heating component 4, the second heating component 5, and the third heating component 6. At this time, the three control switches 82 are all electrically connected to the controller 81, which can facilitate the controller 81 to control the first heating component 4, the second heating component 5, or the third heating component 6 separately, and also facilitate the user to control the heating conditions of the throttle 1, the crankcase ventilation pipe 2, and the crankcase forced ventilation pipe 3 separately, thereby improving accuracy.

[0054] In some optional embodiments, a first sensor (not shown in the figure) electrically connected to the controller 81 is further included, and the first sensor is used to detect the ambient temperature. The first sensor may be a temperature sensor, and the first sensor may be arranged at the intake manifold to facilitate the detection of the ambient temperature; the first sensor is electrically connected to the controller 81, and may be connected by wires or by wireless signals, which is not limited in this application. When working, the first sensor detects the ambient temperature, and then transmits the ambient temperature signal to the controller 81, and the controller 81 processes the signal of the first sensor, thereby controlling the control switch 82, and further controlling the heating conditions of the first heating component 4, the second heating component 5, and the third heating component 6.

[0055] In some optional embodiments, a second sensor (not shown) electrically connected to the controller 81 is further included, and the second sensor is used to detect the temperature of the throttle 1 and / or the crankcase ventilation pipe 2 and / or the temperature of the crankcase forced ventilation pipe 3. The second sensor can be a temperature sensor, and the second sensor is electrically connected to the controller 81, and can be connected by wires or by wireless signals, which is not limited in this application. The provision of the second sensor can further improve the accuracy of the temperature detection of the throttle 1, the crankcase ventilation pipe 2 and the crankcase forced ventilation pipe 3, and further facilitate the user's judgment and control.

[0056] During operation, the second sensor detects the temperature of the throttle valve 1, the crankcase ventilation pipe 2 and the crankcase forced ventilation pipe 3, and then transmits the temperature signal to the controller 81. The controller 81 processes the signal of the second sensor to control the control switch 82, and further controls the heating conditions of the first heating component 4, the second heating component 5 and the third heating component 6.

[0057] In one example, the second sensor may be provided with one, and the second sensor is provided with multiple output ends, one output end is toward the throttle valve 1 , one output end is toward the crankcase ventilation pipe 2 , and another output end is toward the crankcase positive ventilation pipe 3 .

[0058] In one example, a plurality of second sensors are provided, one second sensor faces the throttle valve 1 , one second sensor faces the crankcase ventilation pipe 2 , and another second sensor faces the crankcase forced ventilation pipe 3 .

[0059] The first sensor and the second sensor may be used separately or together, and this application does not impose any limitation thereto.

[0060] The present application also includes a range extender assembly, which includes a throttle 1, a crankcase ventilation pipe 2, a crankcase forced ventilation pipe 3, and a heating device described in any of the above. The heating device is used to heat the throttle 1, the crankcase ventilation pipe 2, and the crankcase forced ventilation pipe 3. The heating device includes a first heating component 4, a second heating component 5, and a third heating component 6. The first heating component 4 is arranged on the throttle 1; the second heating component 5 is arranged on the crankcase ventilation pipe 2; the third heating component 6 is arranged on the crankcase forced ventilation pipe 3; the first heating component 4, the second heating component 5, and the third heating component 6 are electrically connected to a power source 7.

[0061] In cold weather, when the throttle valve 1, the crankcase ventilation pipe 2 and the crankcase forced ventilation pipe 3 are blocked by ice, the first heating component 4 generates heat to break the ice and thaw the throttle valve 1, the second heating component 5 generates heat to break the ice and thaw the crankcase ventilation pipe 2, and the third heating component 6 generates heat to break the ice and thaw the crankcase forced ventilation pipe 3, thereby enabling the engine to be used normally.

[0062] The present application also includes a car, which includes the range extender assembly described above.

[0063] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0064] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. A heating device for heating a throttle valve, a crankcase ventilation pipe and a crankcase forced ventilation pipe, characterized in that: The heating device comprises: A first heating component is disposed on the throttle valve; a second heating assembly, disposed on the crankcase ventilation pipe; a third heating assembly, disposed on the crankcase forced ventilation pipe; The first heating component, the second heating component and the third heating component are electrically connected to a power source.

2. The heating device according to claim 1, characterized in that The first heating component is arranged around the circumference of the throttle valve.

3. The heating device according to claim 1, characterized in that: The second heating assembly is disposed on a peripheral side of the crankcase ventilation pipe, and the second heating assembly extends along an axial direction of the crankcase ventilation pipe.

4. The heating device according to claim 1, characterized in that The third heating assembly is disposed on a peripheral side of the crankcase forced ventilation pipe, and the third heating assembly extends along an axial direction of the crankcase forced ventilation pipe.

5. The heating device according to claim 1, characterized in that: The first heating assembly comprises a first heating element and a first protective cover, the first heating element is electrically connected to the power source, and the first protective cover wraps the first heating element; and / or, The second heating assembly comprises a second heating element and a second protective cover, the second heating element is electrically connected to the power source, and the second protective cover wraps the second heating element; and / or, The third heating assembly includes a third heating element and a third protective cover, the third heating element is electrically connected to the power supply, and the third protective cover wraps the third heating element.

6. The heating device according to claim 1, characterized in that: It also includes a control component, which includes a controller and a control switch, the controller is electrically connected to the control switch, the control switch is electrically connected to the power supply, or the control switch is electrically connected to the first heating component, the second heating component and the third heating component.

7. The heating device according to claim 6, characterized in that It also includes a first sensor electrically connected to the controller, wherein the first sensor is used to detect the ambient temperature.

8. The heating device according to claim 6 or 7, characterized in that: It also includes a second sensor electrically connected to the controller, wherein the second sensor is used to detect the temperature of the throttle valve and / or the crankcase ventilation pipe and / or the temperature of the crankcase forced ventilation pipe.

9. A range extender assembly, characterized in that: It comprises a throttle valve, a crankcase ventilation pipe, a crankcase forced ventilation pipe and a heating device as claimed in any one of claims 1 to 8.

10. An automobile, characterized in that: Including the range extender assembly as described in claim 9.

Images