Rear warm air heating system of fuel automobile
By installing a heater on the rear heating branch pipe and using the exhaust gas heat in the smoke exhaust pipe to heat the coolant, the problem of poor heating effect after fuel vehicles is solved, and the heating effect and system of the rear heating air is significantly improved. energy efficiency.
Patent Information
- Application Number
- CN202421391619.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-18
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-06-18
AI Technical Summary
The heating effect of the fuel-fueled car is poor, mainly due to excessive heat loss when the coolant is transmitted in a longer pipeline.
Install a heater on the rear heating branch pipe and use the heat of the exhaust gas to heat the coolant through the smoke exhaust pipe. The heater includes a central tube, a heating housing, an insulation housing and spiral fins, which use heat exchange and insulation techniques to increase the temperature of the coolant.
Effectively heat the coolant flowing into the post-warming core to improve the warm air effect of the post-warming air, and utilize the heat of the exhaust gas in the smoke exhaust pipe to improve the energy efficiency of the overall system.
Smart Images
Figure CN222496013U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of automobiles, and in particular relates to a rear warm air heating system for a fuel automobile. Background Art
[0002] At present, fuel vehicles usually divert the coolant after the engine heat exchange to the front heater core and the rear heater core through a three-way valve, as shown in the attached Figure 3 As shown, however, due to the length of the vehicle model, when the coolant after heat exchange from the engine passes through the pipeline to reach the rear heater core interface, the length of the pipeline it passes through is close to 3 meters, so when the coolant flows to the rear heater core, more heat is dissipated, which leads to poor heating effect of the rear heater of the car. Summary of the invention
[0003] The utility model aims to provide a rear warm air heating system for a fuel-burning vehicle, so as to overcome the defect that the heating effect of the rear warm air of a fuel-burning vehicle in the prior art is poor.
[0004] The utility model is realized by adopting the following technical scheme: a rear warm air heating system for a fuel vehicle, comprising an engine coolant circulation pipeline and an exhaust pipe, wherein a front three-way valve is installed on the engine coolant circulation pipeline and the inlet of a front warm air core and the inlet of a rear warm air core are respectively connected through the front three-way valve, the front three-way valve and the inlet of the rear warm air core are connected through a rear warm air branch pipe, a heater is installed on the rear warm air branch pipe, and the exhaust pipe is connected to the heater and can heat the coolant in the rear warm air branch pipe.
[0005] Furthermore, a rear three-way valve is installed on the engine coolant circulation pipeline and the outlet of the front heater core and the outlet of the rear heater core are respectively connected through the rear three-way valve.
[0006] Furthermore, the heater includes a central tube, which is installed on and connected to the rear warm air branch pipe. A heating shell is installed on the outside of the central tube. A smoke inlet and a smoke outlet are respectively provided at both ends of the heating shell. The smoke inlet and the smoke outlet are respectively connected to the smoke exhaust pipe through the smoke pipe. An insulation shell is installed on the outside of the central tube, and an insulation body is installed in the insulation shell.
[0007] Furthermore, the thermal insulation body is made of ceramic fiber thermal insulation cotton.
[0008] Furthermore, fins are installed on the outer surface of the portion of the central tube inside the heating shell, the fins are spiral-shaped, and the fins extend from the smoke inlet to the smoke outlet.
[0009] Compared with the prior art, the beneficial effects of the utility model are:
[0010] The utility model installs a heater on the rear heating pipe, which can effectively heat the coolant flowing into the rear heating core, improves the problem of poor heating effect of the rear heating, and can also utilize the heat of the exhaust gas in the exhaust pipe. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a schematic diagram of the utility model;
[0012] Figure 2 It is a schematic diagram of the structure of the heater 7 of the utility model;
[0013] Figure 3 It is a schematic diagram of a rear warm air heating system for a fuel vehicle in the prior art.
[0014] In the figure: 1. Engine coolant circulation pipeline; 2. Smoke exhaust pipe; 3. Front three-way valve; 4. Front heater core; 5. Rear heater core; 6. Rear heater branch pipe; 7. Heater; 8. Rear three-way valve; 9. Center pipe; 10. Heating shell; 11. Smoke inlet; 12. Smoke outlet; 13. Fins; 14. Insulation shell; 15. Insulation body. DETAILED DESCRIPTION
[0015] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.
[0016] A rear warm air heating system for a fuel vehicle comprises an engine coolant circulation pipeline 1 and an exhaust pipe 2. A front three-way valve 3 is installed on the engine coolant circulation pipeline 1 and the inlet of the front warm air core 4 and the inlet of the rear warm air core 5 are respectively connected through the front three-way valve 3. The front three-way valve 3 and the inlet of the rear warm air core 5 are connected through a rear warm air branch pipe 6. A heater 7 is installed on the rear warm air branch pipe 6. The exhaust pipe 2 is connected to the heater 7 and can heat the coolant in the rear warm air branch pipe 6. A rear three-way valve 8 is installed on the engine coolant circulation pipeline 1 and the outlet of the front warm air core 4 and the outlet of the rear warm air core 5 are respectively connected through the rear three-way valve 8.
[0017] The engine coolant circulation pipeline 1 of the utility model circulates the coolant of the engine, and transports the coolant after heat exchange with the engine to the front heater core 4 in the front heater assembly and the rear heater core 5 in the rear heater assembly through the front three-way valve 3 and the rear three-way valve 8, respectively, to heat the front heater core 4 and the rear heater core 5. The rear heater branch pipe 6 is a part of the engine coolant circulation pipeline 1. The utility model installs a heater 7 on the rear heater branch pipe 6, and heats the heater 7 through the exhaust pipe 2 to heat the coolant in the rear heater branch pipe 6, which well solves the problem of low coolant temperature when the coolant is transported to the rear heater core 5 through a long pipeline. The utility model can well improve the temperature of the coolant flowing into the rear heater core 5.
[0018] The heater 7 includes a central tube 9, which is installed on and connected to the rear warm air branch pipe 6. A heating shell 10 is installed on the outer side of the central tube 9. A smoke inlet 11 and a smoke outlet 12 are respectively provided at both ends of the heating shell 10. The smoke inlet 11 and the smoke outlet 12 are respectively connected to a smoke exhaust pipe 13 through a smoke pipe. A heat-insulating shell 14 is installed on the outer side of the central tube 9. A heat-insulating body 15 is installed in the heat-insulating shell 14. The heat-insulating body 15 is made of ceramic fiber heat-insulating cotton.
[0019] The connection position between the smoke inlet 11 and the smoke exhaust pipe 13 of the utility model is on the upper side of the connection position between the smoke outlet 12 and the smoke exhaust pipe 13. The exhaust gas with a relatively high temperature discharged from the smoke exhaust pipe 13 flows into the smoke inlet 11 through the smoke pipe. The exhaust gas flows in the heating shell 10 and flows back into the smoke exhaust pipe 13 from the smoke outlet 12. During the flow of the exhaust gas in the heating shell 10, the exhaust gas will exchange heat with the coolant flowing through the central tube 9 and heat the coolant flowing through the central tube 9. The two ends of the central tube 9 are respectively connected to the rear warm air branch pipe 6. The utility model can well avoid the heat exchange between the exhaust gas in the heating shell 10 and the air by setting the heat-insulating shell 14 and installing the heat-insulating body 15 in the heat-insulating shell 14, thereby improving the heat exchange efficiency with the coolant in the central tube 9.
[0020] Fins 13 are installed on the outer surface of the portion of the central tube 9 inside the heating shell 10 . The fins 13 are spiral-shaped and extend from the smoke inlet 11 to the smoke outlet 12 .
[0021] The utility model can effectively improve the path of exhaust gas flowing through the heating shell 10 by installing spiral fins 13, and improve the heating rate of the central tube 9 and the heat exchange efficiency of the coolant in the central tube 9, thereby further improving the temperature of the coolant flowing through the central tube 9.
Claims
1. A rear heater system for a fuel-powered automobile, comprising an engine coolant circulation pipeline (1) and a smoke exhaust pipe (2), wherein the engine coolant circulation pipeline (1) is provided with a front three-way valve (3) and is respectively connected to an inlet of a front heater core (4) and an inlet of a rear heater core (5) via the front three-way valve (3), the front three-way valve (3) and the inlet of the rear heater core (5) are connected via a rear heater branch pipe (6), a heater (7) is provided on the rear heater branch pipe (6), and the smoke exhaust pipe (2) is connected to the heater (7) and can heat the coolant in the rear heater branch pipe (6).
2. A fuel vehicle rear warm air heating system according to claim 1, characterized in that: The engine coolant circulation pipeline (1) is provided with a rear three-way valve (8) and is connected to an outlet of the front heater core (4) and an outlet of the rear heater core (5) respectively via the rear three-way valve (8).
3. A fuel vehicle rear warm air heating system according to claim 1, characterized in that: The heater (7) comprises a central tube (9), the central tube (9) being mounted on and connected to the rear warm air branch tube (6), a heating shell (10) being mounted on the outer side of the central tube (9), a smoke inlet (11) and a smoke outlet (12) being respectively provided at both ends of the heating shell (10), the smoke inlet (11) and the smoke outlet (12) being respectively connected to the smoke exhaust pipe (2) via smoke pipes, a heat-insulating shell (14) being mounted on the outer side of the central tube (9) and a heat-insulating body (15) being mounted in the heat-insulating shell (14).
4. A fuel vehicle rear warm air heating system according to claim 3, characterized in that: The thermal insulation body (15) is made of ceramic fiber thermal insulation cotton.
5. The rear air heating system for a fuel vehicle according to claim 3, characterized in that: Fins (13) are installed on the outer surface of the portion of the central tube (9) inside the heating shell (10); the fins (13) are spiral-shaped and extend from the smoke inlet (11) to the smoke outlet (12).