Heat insulation wrapping type electric heating device
By installing an insulated enclosed electric heating device in the intake pipe and return pipe of the car, the problem of slow car startup caused by the inability to work normally in a low-temperature environment is solved, and the normal operation of the system at suitable temperatures and the improvement of the car's starting performance is achieved.
Patent Information
- Application Number
- CN202421787731.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-23
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-07-23
AI Technical Summary
In environments with low ambient temperatures such as winter, the EGR system and CCV system cannot work properly, resulting in the problem of slow start of the car.
The heat-insulated enclosed electric heating device is adopted, including a heat shield, a heating resistor and a heating circuit. The heat shield and heating resistor are used to heat and insulate the car's intake pipe and return pipe.
It effectively avoids the problem of slow car startup caused by the inability to work properly in low-temperature environments, ensures that the system works at appropriate temperatures, and improves the starting performance of the car.
Smart Images
Figure CN222916207U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of automobiles, in particular to the technical field of heat-insulating wrapped electric heating devices.
Background Art
[0002] When the ambient temperature is relatively low in winter or other seasons, automobiles often have the phenomenon of slow starting. Common reasons for slow automobile starting include increased power consumption of the battery in low-temperature environments, increased hardness of the tires in low-temperature environments, and increased viscosity of the engine oil as the temperature drops (this will cause the flow rate of the engine oil to slow down, and further increase the resistance of the engine), etc.
[0003] The EGR (Exhaust Gas Recirculation) system, that is, the exhaust gas recirculation system, can introduce a part of the exhaust gas into the intake side for re-inhalation after the fuel of the automobile burns. The main purpose is to reduce nitrogen oxides (NOx) in the exhaust gas and improve fuel economy under partial load. The engine is a device that provides power for the automobile and is the heart of the automobile, determining the power performance, economy and stability of the automobile. The CCV system refers to the Closed Crankcase Ventilation System, which is an important part of the automobile engine. The difficult cold starting of automobiles is often caused by the over-cooling of the gas pipelines and fuel pipelines of the EGR system and the CCV system. Therefore, how to avoid the problem that the EGR system and the CCV system cannot work properly in low-temperature environments such as winter, resulting in slow automobile starting, needs to be solved urgently.
Content of the Utility Model
[0004] The purpose of the utility model is to solve the problems in the prior art, and propose a heat-insulating wrapped electric heating device, which can avoid the problem that the EGR system and the CCV system cannot work properly in low-temperature environments such as winter, resulting in slow automobile starting.
[0005] To achieve the above purpose, the utility model proposes a heat-insulating wrapped electric heating device, which includes a heat-insulating cover, heating resistors and heating circuits. The heating circuits are connected to the central controller of the automobile and are simultaneously connected with a plurality of heating resistors. Heat-insulating covers are respectively installed outside each of the heating resistors. The cover body of the heat-insulating cover is jointly composed of a cover body heat preservation layer and cover body heat-insulating layers coated on both sides of the heat preservation layer.
[0006] Preferably, the heat-insulating cover includes a cover body main body, an elastic band and a fastener. The elastic band is installed on the surface of the cover body main body and can elastically clamp the heating resistor together with the cover body main body. The cover body main body can be wound around the component to be heated on the automobile and is kept in a wound state through the fastener.
[0007] Preferably, the heat preservation layer is a high silica non-woven cotton layer, and the thickness of the heat preservation layer of the cover body is 5-20 mm.
[0008] Preferably, the heat insulation layer of the cover body is a fiberglass cloth layer with a metal thin film layer on the surface, and the thickness of the heat insulation layer of the cover body is 2-10 mm.
[0009] Preferably, the metal thin film layer is an aluminum foil layer.
[0010] Preferably, the fasteners include male snap buttons, female snap buttons, spring hooks and positioning rings. Several pairs of the male snap buttons and female snap buttons are correspondingly arranged on the surface of the cover body main body and can be correspondingly snapped together. Several pairs of the spring hooks and positioning rings are correspondingly arranged on the surface of the cover body main body and can be correspondingly hooked together.
[0011] Preferably, a time delay relay for delaying the closing of each heating resistor is further provided on the heating circuit.
[0012] Preferably, a fuse box for protecting against overcurrent is further provided on the heating circuit.
[0013] Preferably, the time delay relay and the fuse box are respectively installed inside the vehicle through a support frame.
[0014] Preferably, several positioning through holes and positioning grooves are respectively provided on the support frame.
[0015] Advantages of the present utility model:
[0016] 1) By combining the heat insulation cover, the heating resistor and the heating circuit, the heat insulation cover and the heating resistor can be used to perform fixed-point heating and heat preservation on parts such as the intake pipe and the return oil pipe of the vehicle, thereby avoiding the problem that the EGR system and the CCV system cannot work properly in environments with low ambient temperatures such as winter, resulting in slow vehicle startup.
[0017] 2) By adopting the heat preservation layer of the cover body and the heat insulation layer of the cover body wrapped on both sides of the heat preservation layer to jointly form the cover body main body of the heat insulation cover, selecting the high silica non-woven cotton layer as the heat preservation layer, and selecting the fiberglass cloth layer with an aluminum foil layer on the surface as the heat insulation layer of the cover body, not only can the high silica non-woven cotton layer accumulate air in the middle of the cover body main body to prevent heat dissipation, but also the aluminum foil layer and the fiberglass cloth layer can cooperate on the inner and outer sides of the cover body main body respectively, thereby playing the roles of fire prevention, moisture prevention and reflecting part of the heat radiation.
[0018] 3) By respectively installing a time delay relay and a fuse box on the heating circuit, on the one hand, the time delay relay can be used to make each heating resistor close after a specified time delay, which is convenient for the vehicle to start quickly after parking. On the other hand, the fuse box can be used to protect against overcurrent, effectively avoiding circuit short circuit and overload.
[0019] The features and advantages of the present utility model will be described in detail through embodiments in conjunction with the accompanying drawings.
Explanation of the Drawings
[0020] Figure 1 is the front view of the heat-insulating wrapped electric heating device of the present utility model;
[0021] Figure 2 is the front view of the heat-insulating cover of the heat-insulating wrapped electric heating device of the present utility model;
[0022] Figure 3 is the sectional view of the heat-insulating cover of the heat-insulating wrapped electric heating device of the present utility model;
[0023] Figure 4 is the assembly schematic diagram of the heating circuit and the support frame of the heat-insulating wrapped electric heating device of the present utility model;
[0024] Figure 5 is the three-dimensional structure schematic diagram of the heating resistor of the heat-insulating wrapped electric heating device of the present utility model;
[0025] Figure 6 is the three-dimensional structure schematic diagram of the support frame of the heat-insulating wrapped electric heating device of the present utility model.
[0026] In the figure: 1 - heat-insulating cover, 11 - cover body main body, 111 - cover body heat preservation layer, 112 - cover body heat insulation layer, 1121 - fiberglass cloth layer, 1122 - metal thin film layer, 12 - elastic band, 13 - fastener, 131 - male snap button, 132 - female snap button, 133 - spring hook, 134 - positioning pull ring, 2 - heating resistor, 3 - heating circuit, 31 - time delay relay, 32 - fuse box, 4 - support frame, 41 - positioning through hole, 42 - positioning belt groove.
Specific Embodiment
[0027] Refer to Figures 1 to 6 , the heat-insulating wrapped electric heating device of the present utility model includes a heat-insulating cover 1, a heating resistor 2 and a heating circuit 3. The heating circuit 3 is connected to the central controller of the vehicle and is simultaneously connected to a plurality of heating resistors 2. A heat-insulating cover 1 is respectively installed outside each heating resistor 2. The cover body main body 11 of the heat-insulating cover 1 is jointly composed of a cover body heat preservation layer 111 and cover body heat insulation layers 112 coated on both sides of the heat preservation layer 111.
[0028] The heat shield 1 includes a shield body 11, an elastic band 12, and a fastener 13. The elastic band 12 is installed on the surface of the shield body 11 and can elastically clamp the heating resistor 2 together with the shield body 11. The shield body 11 can be wound around the component to be heated of the vehicle and is held in a wound state by the fastener 13. Among them, the shield body 11 installed in different parts can be adjusted and cut into corresponding shapes according to the object to be wrapped.
[0029] The heat preservation layer 111 is a high-silica non-woven cotton layer, and the thickness of the heat preservation layer 11 of the shield body is 10 mm.
[0030] The heat insulation layer 112 of the shield body is a fiberglass cloth layer 1121 with a metal thin film layer 1122 on the surface. The thickness of the heat insulation layer 112 of the shield body is 5 mm, and the metal thin film layer 1122 is an aluminum foil layer.
[0031] The fastener 13 includes a male snap button 131, a female snap button 132, a spring hook 133, and a positioning ring 134. Several pairs of the male snap buttons 131 and the female snap buttons 132 are arranged on the surface of the shield body 11 in one-to-one correspondence and can be snapped together correspondingly. Several pairs of the spring hooks 133 and the positioning rings 134 are arranged on the surface of the shield body 11 in one-to-one correspondence and can be hooked together correspondingly.
[0032] A time delay relay 31 for delaying the closing of each heating resistor 2 is also provided on the heating circuit 3.
[0033] An insurance box 32 for protecting against overcurrent is also provided on the heating circuit 3.
[0034] The time delay relay 31 and the insurance box 32 are respectively installed inside the vehicle through a support frame 4.
[0035] Several positioning through holes 41 and positioning belt grooves 42 are respectively provided on the support frame 4. Among them, the positioning through holes 41 are used for bolts and screws to penetrate the support frame 4; the positioning belt grooves 42 can be bypassed and embedded by cable ties, so as to prevent the cable ties from sliding along the support frame 4 and ensure that the wires can be stably fixed on the support frame 4.
[0036] The working process of the utility model:
[0037] Before use, the heating resistor 2 can be first inserted into the annular cavity between the shield body 11 and the elastic band 12. Then, after the shield body 11 is wrapped around the component to be heated of the vehicle (such as vehicle components such as the intake pipe and the return oil pipe), the shape of the shield body 11 is fixed by the fastener 13. Among them, the heating resistor 2 is located on the side of the shield body 11 facing the component to be heated of the vehicle.
[0038] In an environment with a relatively low temperature such as in winter, the heating resistor 2 can be used for heating, and at the same time, the heat insulation cover 1 can be used for heat preservation, so that automotive components such as the intake pipe and the oil return pipe can work at an appropriate temperature. In addition, the delay relay 31 can delay the shutdown of each heating resistor 2 (such as a 10-minute delay), so that each heating resistor 2 can continue to heat for 10 minutes, which is convenient for the vehicle to restart within a short time after parking.
[0039] The above embodiments are illustrative of the present invention and not restrictive thereof. Any solution obtained by simply transforming the present invention falls within the protection scope of the present invention.
Claims
1. Heat insulation wrapped electric heating device, characterized in that: The invention comprises a heat insulation cover (1), a heating resistor (2) and a heating circuit (3), wherein the heating circuit (3) is connected to a central controller of a vehicle and is simultaneously connected to a plurality of heating resistors (2), and each heating resistor (2) is respectively provided with a heat insulation cover (1), and a cover body (11) of the heat insulation cover (1) is composed of a cover body heat preservation layer (111) and a cover body heat insulation layer (112) covering both sides of the cover body heat preservation layer (111).
2. The heat-insulating wrapped electric heating device according to claim 1, characterized in that: The heat insulation cover (1) comprises a cover body (11), an elastic band (12) and a fastener (13); the elastic band (12) is mounted on the surface of the cover body (11) and can elastically clamp the heating resistor (2) together with the cover body (11); the cover body (11) can be wound around the part to be heated of the automobile and maintained in a wound state by the fastener (13).
3. The heat-insulating wrapped electric heating device according to claim 2, characterized in that: The cover body thermal insulation layer (111) is a high-silicon non-woven cotton layer, and the thickness of the cover body thermal insulation layer (111) is 5 to 20 mm.
4. The heat-insulating wrapped electric heating device according to claim 2, characterized in that: The cover body heat insulation layer (112) is a glass fiber cloth layer (1121) with a metal film layer (1122) on the surface, and the thickness of the cover body heat insulation layer (112) is 2 to 10 mm.
5. The heat-insulating wrapped electric heating device according to claim 4, characterized in that: The metal film layer (1122) is an aluminum foil layer.
6. The heat-insulating wrapped electric heating device according to claim 2, characterized in that: The fastener (13) comprises a male snap button (131), a female snap button (132), a spring pull hook (133) and a positioning pull ring (134); a plurality of pairs of the male snap buttons (131) and the female snap buttons (132) are arranged on the surface of the cover body (11) in a one-to-one correspondence and can be correspondingly buckled; a plurality of pairs of the spring pull hooks (133) and the positioning pull ring (134) are arranged on the surface of the cover body (11) in a one-to-one correspondence and can be correspondingly hooked.
7. The heat-insulating wrapped electric heating device according to any one of claims 1 to 6, characterized in that: A time delay relay (31) is also provided on the heating circuit (3) and can delay the closing of each heating resistor (2).
8. The heat-insulating wrapped electric heating device according to claim 7, characterized in that: A fuse box (32) capable of protecting against overcurrent is also provided on the heating circuit (3).
9. The heat-insulating wrapped electric heating device according to claim 8, characterized in that: The time delay relay (31) and the fuse box (32) are respectively installed inside the car through a support frame (4).
10. The heat-insulating wrapped electric heating device according to claim 9, characterized in that: The support frame (4) is provided with a plurality of positioning through holes (41) and positioning belt grooves (42).