Grille for improving defrosting and heating effects of automobile

Abstract

The utility model discloses a grille for improving defrosting and heating effects of an automobile, and belongs to the field of automobiles. According to the technical scheme, the grille capable of improving the defrosting and heating effects of the automobile comprises an engine exhaust assembly, an exhaust branch is connected to the engine exhaust assembly, the head end and the tail end of the exhaust branch are both communicated with the engine exhaust assembly, and a heat exchange piece located in a defrosting / heating air duct is arranged on the exhaust branch. According to the automobile defrosting / heating air channel, heat exchange is conducted between heat in engine exhaust and airflow in the automobile defrosting / heating air channel, under the condition that energy consumption is not increased, the temperature of the airflow is increased, the defrosting effect and the defrosting efficiency are greatly improved, meanwhile, the temperature of tail gas finally exhausted by an engine exhaust assembly is reduced, and the service life of the engine exhaust assembly is prolonged. And the influence on parts and pedestrians near the engine exhaust assembly is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobiles, and in particular relates to a grille for improving the defrosting and heating effects of an automobile. Background Art

[0002] When a car is used in an extremely cold area (such as an ambient temperature of -20℃), especially when the car is just started or the engine load is small, and the engine coolant temperature is low, the heat in the engine coolant is insufficient to meet the requirements of the driver and passengers for defrosting the car glass surface and heating the passenger compartment. At this time, in order to increase the air flow temperature for defrosting and heating, we hope that more heat can enter the coolant during fuel combustion, which is obviously inconsistent with the goal of maximizing the useful power ratio pursued in engine design.

[0003] For traditional fuel vehicles, the defrosting and heating process in winter uses a blower and heater core arranged in the air-conditioning box to exchange the heat in the engine coolant into the air, which is then blown to the vicinity of the glass through the defrost duct and defrost outlet for defrosting, and is blown to the vicinity of the driver and passengers through the face or foot duct outlets for heating.

[0004] Another defrosting principle is the prior art with announcement number CN217259496U, an automobile air-conditioning auxiliary heating system, which places a PTC heater near the heater core to directly heat the air in the defrost duct to increase the temperature of the defrost airflow.

[0005] For traditional fuel vehicles with auxiliary defrosting performance, the heat used for defrosting and heating comes from the heat entering the coolant during engine combustion. When the engine is just started or the load is small, the coolant temperature is low, the defrosting and heating air outlet temperature is low, and the effect is poor.

[0006] The method of arranging a PTC heater near the heater core requires additional energy consumption. For the engine, converting chemical energy into mechanical energy and then into electrical energy involves considerable energy loss. Compared with the heating power of the PTC, the energy consumption rate of fuel combustion is approximately three times that of the heating power. Utility Model Content

[0007] The utility model provides a grille for improving the defrosting and heating effect of an automobile, so as to solve at least one of the above-mentioned technical problems.

[0008] The technical solution adopted by the utility model is:

[0009] A grille for improving the defrosting and heating effect of an automobile comprises an engine exhaust assembly, the engine exhaust assembly is connected to an exhaust branch, both ends of the exhaust branch are connected to the engine exhaust assembly, and the exhaust branch is provided with a heat exchange component located in a defrosting / heating air duct.

[0010] Preferably, the engine exhaust assembly comprises an engine exhaust pipe, an air intake end of the engine exhaust pipe is connected to an engine exhaust port, and an exhaust end of the engine exhaust pipe is connected to an external exhaust pipe.

[0011] Preferably, the exhaust branch includes a first air duct and a second air duct, and the external exhaust pipe is provided with a first interface and a second interface, the first air duct is fixedly connected to the first interface, and the second air duct is connected to the second interface, and the upper end of the first air duct and the upper end of the second air duct are respectively connected to the input end and the output end of the heat exchanger.

[0012] Preferably, the heat exchange member comprises a grille member, a flow guiding cavity is provided in the grille member, an air inlet pipe interface for connecting to a first air duct is provided at an input end of the grille member, and an exhaust pipe interface for connecting to a second air duct is provided at an output end of the grille member.

[0013] Preferably, a first stop valve is provided on the first interface, and a second stop valve is provided on the second interface.

[0014] Preferably, a third stop valve is provided on the external exhaust pipe, and the third stop valve is located between the first interface and the second interface.

[0015] Preferably, a first filter tank is provided on the first air duct, and a filter element is provided in the first filter tank.

[0016] Preferably, a second filter tank is provided at the end of the external exhaust pipe, and a filter element is provided in the second filter tank.

[0017] Preferably, a heat-insulating structural layer is provided outside the first air duct, and the grille member is made of copper.

[0018] Preferably, the device further comprises a controller for controlling the opening or closing of the first stop valve, the second stop valve and the third stop valve.

[0019] Due to the adoption of the above technical solution, the beneficial effects achieved by the utility model are as follows:

[0020] 1. In this application, when it is necessary to defrost the car, both ends of the exhaust branch are controlled to be connected to the engine exhaust assembly. The car driver only needs to start the engine and turn on the fan of the defrost / heating air duct to direct the air from the defrost / heating air duct to the body parts that need to be defrosted, such as the front and rear windshields. The fuel in the engine burns to form high-temperature exhaust gas, which will flow along the exhaust branch after entering the engine exhaust assembly. The high-temperature exhaust gas entering the exhaust branch exchanges heat with the heat exchanger, which heats the air flowing in the defrost / heating air duct. As the temperature of the air discharged from the defrost / heating air duct gradually increases, the warm air blows to the part of the car to be defrosted and the outside of the car, causing the frost to sublimate and vaporize. In addition, the exhaust gas discharged from the end of the exhaust branch flows back to the engine exhaust assembly and is finally discharged from the end of the engine exhaust assembly.

[0021] It should be noted that the heat exchanger is arranged at the end of the defrost / heating air duct, which can guide the wind direction and heat exchange. The exhaust gas discharged by the engine circulates inside the heat exchanger, and the defrost heating air flow heated by the heater core in the vehicle air-conditioning box circulates outside the heat exchanger. The two gases do not contact each other, thus avoiding the exhaust gas discharged by the engine from having adverse effects on the air-conditioning system.

[0022] This application utilizes the heat in the engine exhaust to exchange heat with the airflow in the defrosting / heating duct of the car, thereby increasing the temperature of the airflow without increasing energy consumption, greatly improving the defrosting effect and efficiency, and at the same time, reducing the temperature of the exhaust gas finally discharged by the engine exhaust assembly, reducing the impact on the parts and pedestrians near the engine exhaust assembly. It is worth mentioning that the flexible segmented structural design makes the assembly process of the overall structure simple, which can not only be used on mass-produced vehicles, but also can be modified and used on sold vehicles, and can be installed at the required defrosting / heating duct position according to needs, with a wide range of applications.

[0023] 2. As a preferred embodiment of the utility model, the intake end of the engine exhaust pipe is provided with interfaces of the same number as the engine exhaust port, and the engine exhaust port is sealed and connected to the intake end of the engine exhaust pipe by flanges and bolts. The exhaust gas discharged from several engine exhaust ports is gathered into the engine exhaust pipe through several interfaces of the engine exhaust pipe and introduced into the external exhaust pipe through the engine exhaust pipe. The exhaust gas is finally discharged to the nature by the external exhaust pipe. The segmented design of the engine exhaust pipe and the external exhaust pipe can increase the flexibility of repair, maintenance and replacement, and reduce the cost of replacing corresponding accessories.

[0024] 3. As a preferred embodiment of the utility model, when it is necessary to defrost the exterior of the automobile, the high-temperature exhaust gas in the external exhaust pipe is controlled to enter the heat exchanger through the first interface, the first air duct, and the input end of the heat exchanger in sequence, and the exhaust gas temperature is reduced while the heat exchanger is heated. The exhaust gas that has completed the heat exchange flows back to the external exhaust pipe through the output end of the heat exchanger, the second air duct, and the second interface. It is worth mentioning that the first air duct, the second air duct, and the heat exchanger also adopt a segmented detachable design, which is convenient for adapting to more vehicle models and is also convenient for later repair, maintenance, and replacement.

[0025] 4. As a preferred embodiment of the present invention, the specific shape of the grille member can be as follows: Figure 3 The structure shown, but not limited to this structure, the interior of the grille is a hollow structure, the exhaust gas of the first air duct enters the guide cavity from the air inlet pipe interface, and heat exchanges with the grille shell, the grille exchanges heat with the air flowing in the defrosting / heating air duct, the exhaust gas that has completed the heat exchange is discharged from the exhaust pipe interface into the second air duct and the second air duct discharges the exhaust gas back to the external exhaust pipe. The grille is composed of a plurality of exhaust ducts that are interwoven horizontally and vertically and interpenetrating with each other, and the exhaust ducts are interwoven horizontally and vertically to form a plurality of guide ports, which are conducive to guiding the air in the defrosting / heating air duct.

[0026] 5. As a preferred embodiment of the utility model, the first stop valve and the second stop valve are used to jointly control whether exhaust gas enters the first air duct and the second air duct. When defrosting is required, the first stop valve and the second stop valve are opened at the same time. When defrosting is not required, the first stop valve and / or the second stop valve can be closed, which is simple to operate.

[0027] 6. As a preferred embodiment of the present utility model, when the defrost efficiency needs to be increased, the driver can close the third shut-off valve so that the engine exhaust can only flow along the first air duct, the grille, the second air duct, and the external exhaust pipe, thereby increasing the flow rate of the exhaust gas in the grille, increasing the heating efficiency of the air in the defrost / heating air duct, and thus improving the defrost efficiency.

[0028] 7. As a preferred embodiment of the present invention, the first filter tank and the filter element can filter out carbon deposits produced by incomplete fuel combustion during the initial operation of the engine, thereby preventing carbon deposits from entering the first air duct, the grille, and the second air duct to affect the normal operation of the equipment.

[0029] 8. As a preferred embodiment of the present utility model, the provision of the second filter tank facilitates the degradation and absorption of pollutants such as sulfur dioxide and carbon monoxide in the exhaust gas before the exhaust gas is discharged, thereby reducing the impact of the exhaust gas emission on the environment.

[0030] 9. As a preferred embodiment of the present invention, the provision of a thermal insulation structure layer is beneficial for thermal insulation of the first air duct, reducing the large amount of heat lost by exhaust gas during circulation in the first air duct and reducing the heat exchange efficiency of the grille. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is one of the structural schematic diagrams of a specific implementation method of the utility model;

[0032] Figure 2 This is the second structural diagram of a specific implementation method of the utility model;

[0033] Figure 3 It is a structural schematic diagram of a grille member in a specific implementation manner of the present utility model.

[0034] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0035] In the attached picture:

[0036] 1. Engine exhaust pipe; 2. External exhaust pipe; 201. First interface; 202. Second interface; 3. First air duct; 301. First filter tank; 4. Second air duct; 5. Grille; 501. Inlet pipe interface; 502. Exhaust pipe interface; 6. First stop valve; 7. Second stop valve; 8. Third stop valve; 9. Second filter tank; 10. Defrost / heating air duct. DETAILED DESCRIPTION

[0037] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in the form of examples in conjunction with the accompanying drawings.

[0038] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0039] In addition, in the description of the present invention, it should be understood that the terms "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0040] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] In the present utility model, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "implementation method", "example", "one embodiment", "example" or "specific example" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0042] Reference Figure 1-3 A grille for improving the defrosting and heating effect of an automobile includes an engine exhaust assembly, an exhaust branch is connected to the engine exhaust assembly, both ends of the exhaust branch are connected to the engine exhaust assembly, and a heat exchange component located in a defrosting / heating air duct 10 is provided on the exhaust branch.

[0043] It can be understood by those skilled in the art that when the ambient temperature of the automobile is generally below 0°C, the water vapor in the air around the automobile body and the front and rear windshields condenses to form frost on the automobile body and the front and rear windshields. When it is necessary to defrost the automobile, both ends of the exhaust branch are controlled to be in a connected state with the engine exhaust assembly. The automobile driver only needs to start the engine and turn on the fan of the defrost / heating air duct 10 so that the defrost / heating air duct 10 directs the air to the parts of the automobile body that need to be defrosted, such as the front and rear windshields. The fuel in the engine burns to form high-temperature exhaust gas, which will flow along the exhaust branch after entering the engine exhaust assembly. The high-temperature exhaust gas entering the exhaust branch exchanges heat with the heat exchanger, and the heat exchanger heats the air flowing in the defrost / heating air duct 10. As the temperature of the air discharged from the defrost / heating air duct 10 gradually increases, the warm air blows to the part of the automobile to be defrosted and the outside of the automobile, so that the frost sublimates and gasifies. In addition, the exhaust gas discharged from the end of the exhaust branch flows back to the engine exhaust assembly and is finally discharged from the end of the engine exhaust assembly.

[0044] It should be noted that the heat exchange component is arranged at the end of the defrost / heating air duct 10, which can play the role of guiding wind direction and heat exchange. The exhaust gas discharged by the engine circulates inside the heat exchange component, and the defrost heating air flow inside the defrost / heating air duct 10 heated by the heater core in the vehicle air-conditioning box circulates outside the heat exchange component. The two gases do not contact each other, thereby avoiding the exhaust gas discharged by the engine to have an adverse effect on the air-conditioning system.

[0045] This application utilizes the heat in the engine exhaust to exchange heat with the airflow in the automobile defrosting / heating air duct 10, thereby increasing the temperature of the airflow without increasing energy consumption, greatly improving the defrosting effect and defrosting efficiency, and at the same time, reducing the exhaust temperature of the engine exhaust assembly, reducing the impact on the components and pedestrians near the engine exhaust assembly. It is worth mentioning that the flexible segmented structural design makes the assembly process of the overall structure simple, which can not only be used in mass-produced vehicles, but also can be modified and used on sold vehicles, and can be installed at the required defrosting / heating air duct 10 position according to needs, and has a wide range of applications.

[0046] As a specific embodiment of the engine exhaust pipe 1 in this application, refer to Figure 1 , Figure 2 The engine exhaust assembly includes an engine exhaust pipe 1, an air intake end of the engine exhaust pipe 1 is connected to an engine exhaust port, and an exhaust end of the engine exhaust pipe 1 is connected to an external exhaust pipe 2.

[0047] The intake end of the engine exhaust pipe 1 is provided with interfaces of the same number as the exhaust ports of the engine. The exhaust ports of the engine are sealed and connected to the intake end of the engine exhaust pipe 1 through flanges and bolts. Exhaust gas discharged from several exhaust ports of the engine converges into the engine exhaust pipe 1 through several interfaces of the engine exhaust pipe 1 and is introduced into the external exhaust pipe 2 through the engine exhaust pipe 1. The exhaust gas is finally discharged to the nature through the external exhaust pipe 2. The segmented design of the engine exhaust pipe 1 and the external exhaust pipe 2 can increase the flexibility of repair, maintenance and replacement, and reduce the cost of replacing corresponding accessories.

[0048] As a preferred embodiment of the central exhaust branch, refer to Figure 1-Figure 2 The exhaust branch includes a first air duct 3 and a second air duct 4. The external exhaust pipe 2 is provided with a first interface 201 and a second interface 202. The first air duct 3 is fixedly connected to the first interface 201, and the second air duct 4 is connected to the second interface 202. The upper end of the first air duct 3 and the upper end of the second air duct 4 are respectively connected to the input end and the output end of the heat exchange component.

[0049] When the exterior of the automobile needs to be defrosted, the high-temperature exhaust gas in the external exhaust pipe 2 is controlled to enter the heat exchanger through the first interface 201, the first air duct 3, and the input end of the heat exchanger in sequence, and the heat exchanger is heated while the exhaust temperature is reduced. The exhaust gas that has completed the heat exchange flows back to the external exhaust pipe 2 through the output end of the heat exchanger, the second air duct 4, and the second interface 202. It is worth mentioning that the first air duct 3, the second air duct 4, and the heat exchanger also adopt a segmented detachable design, which is convenient for adapting to more car models and is also convenient for later repair, maintenance and replacement.

[0050] As a preferred embodiment of the heat exchange element, refer to Figure 1-Figure 3 The heat exchange element includes a grille 5, a guide cavity is provided in the grille 5, an inlet pipe interface 501 for connecting to the first air duct 3 is provided at the input end of the grille 5, and an exhaust pipe interface 502 for connecting to the second air duct 4 is provided at the output end of the grille 5.

[0051] The specific shape of the grid member 5 can be as follows: Figure 3 The structure shown, but not limited to this structure, the interior of the grille 5 is a hollow structure, the exhaust gas of the first air duct 3 enters the guide cavity from the air inlet pipe interface 501, and heat exchanges with the outer shell of the grille 5, the grille 5 and the air flowing in the defrosting / heating air duct 10 exchange heat, the exhaust gas that completes the heat exchange is discharged from the exhaust pipe interface 502 into the second air duct 4 and the second air duct 4 discharges the exhaust gas back to the external exhaust pipe 2. The grille 5 is composed of a plurality of exhaust pipes that are interwoven horizontally and vertically and interpenetrating with each other, and the exhaust pipes are interwoven horizontally and vertically to form a plurality of guide ports, which are conducive to guiding the air in the defrosting / heating air duct 10.

[0052] As a preferred embodiment of the present application, Figure 1 A first stop valve 6 is provided on the first interface 201, and a second stop valve 7 is provided on the second interface 202.

[0053] The first stop valve 6 and the second stop valve 7 are used to jointly control whether exhaust gas enters the first air duct 3 and the second air duct 4. When defrosting is required, the first stop valve 6 and the second stop valve 7 are opened at the same time. When defrosting is not required, the first stop valve 6 and / or the second stop valve 7 can be closed, which is simple to operate.

[0054] Furthermore, referring to Figure 2 The external exhaust pipe 2 is provided with a third stop valve 8, and the third stop valve 8 is located between the first interface 201 and the second interface 202. When the defrosting efficiency needs to be increased, the driver can close the third stop valve 8, so that the engine exhaust can only flow along the first air duct 3, the grille 5, the second air duct 4, and the external exhaust pipe 2, increase the flow of the exhaust in the grille 5, increase the heating efficiency of the air in the defrosting / heating air duct 10, and thus improve the defrosting efficiency.

[0055] It should also be noted that the first stop valve 6, the second stop valve 7, and the third stop valve 8 are all electrically controlled valves, and each has two states of on and off. The opening and closing of the first stop valve 6, the second stop valve 7, and the third stop valve 8 can be controlled by adding a controller in the central control area of ​​the car and using a push-type switch.

[0056] As a preferred example of the above embodiment, refer to Figure 2 The first air duct 3 is provided with a first filter tank 301, and a filter element is provided in the first filter tank 301. The first filter tank 301 and the filter element can filter the carbon deposits generated by the incomplete combustion of fuel during the initial operation of the engine, and prevent the carbon deposits from entering the first air duct 3, the grille 5, and the second air duct 4 to affect the normal operation of the equipment.

[0057] Furthermore, a second filter tank 9 is provided at the end of the external exhaust pipe 2, and a filter element is provided in the second filter tank 9. The second filter tank 9 is provided to degrade and absorb pollutants such as sulfur dioxide and carbon monoxide in the exhaust gas before the exhaust gas is discharged, thereby reducing the impact of the exhaust gas discharge on the environment.

[0058] As a preferred example of the present application, a heat preservation structure layer is provided outside the first air duct 3, and the material of the grille 5 is copper. The provision of the heat preservation structure layer is conducive to heat preservation of the first air duct 3, reducing the large amount of heat lost by the exhaust gas during the circulation of the first air duct 3, and reducing the heat exchange efficiency of the grille 5.

[0059] The parts not described in the present invention can be realized by adopting or drawing on the existing technology.

[0060] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0061] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. A grille for improving the defrosting and heating effect of a car, characterized in that: The invention comprises an engine exhaust assembly, the engine exhaust assembly is connected to an exhaust branch, both ends of the exhaust branch are connected to the engine exhaust assembly, and the exhaust branch is provided with a heat exchange component located in a defrosting / heating air duct (10).

2. A grille for improving automobile defrosting and heating effect according to claim 1, characterized in that: The engine exhaust assembly comprises an engine exhaust pipe (1), the air intake end of the engine exhaust pipe (1) is connected to the engine exhaust port, and the exhaust end of the engine exhaust pipe (1) is connected to an external exhaust pipe (2).

3. A grille for improving automobile defrosting and heating effect according to claim 2, characterized in that: The exhaust branch comprises a first air duct (3) and a second air duct (4); the external exhaust pipe (2) is provided with a first interface (201) and a second interface (202); the first air duct (3) is fixedly connected to the first interface (201); the second air duct (4) is connected to the second interface (202); the upper end of the first air duct (3) and the upper end of the second air duct (4) are respectively connected to the input end and the output end of the heat exchange component.

4. A grille for improving automobile defrosting and heating effect according to claim 3, characterized in that: The heat exchange component comprises a grille component (5), a flow guiding cavity is provided in the grille component (5), an input end of the grille component (5) is provided with an air inlet pipe interface (501) for connecting to a first air guide pipe (3), and an output end of the grille component (5) is provided with an exhaust pipe interface (502) for connecting to a second air guide pipe (4).

5. A grille for improving automobile defrosting and heating effect according to claim 3, characterized in that: The first interface (201) is provided with a first stop valve (6), and the second interface (202) is provided with a second stop valve (7).

6. A grille for improving automobile defrosting and heating effect according to claim 5, characterized in that: The external exhaust pipe (2) is provided with a third stop valve (8), and the third stop valve (8) is located between the first interface (201) and the second interface (202).

7. A grille for improving automobile defrosting and heating effect according to claim 3, characterized in that: The first air guide pipe (3) is provided with a first filter tank (301), and a filter element is provided in the first filter tank (301).

8. The grille for improving automobile defrosting and heating effect according to claim 2, characterized in that: A second filter tank (9) is provided at the end of the external exhaust pipe (2), and a filter element is provided in the second filter tank (9).

9. A grille for improving automobile defrosting and heating effect according to claim 4, characterized in that: The first air guide pipe (3) is provided with a heat-insulating structural layer on the outside, and the grille member (5) is made of copper.

10. A grille for improving automobile defrosting and heating effect according to claim 6, characterized in that: It also includes a controller for controlling the opening or closing of the first stop valve (6), the second stop valve (7) and the third stop valve (8).

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