Warm air system and motor vehicle

Abstract

The utility model discloses a warm air system and a motor vehicle, the warm air system comprises a cab heat exchanger, the cab heat exchanger is communicated with a water outlet of a cooling system of an engine through a warm air water outlet pipe, the cab heat exchanger is communicated with a water inlet of the cooling system of the engine through a warm air water return pipe, and the warm air system further comprises a heater; the heater is arranged on the warm air outlet pipe and used for heating the warm air outlet pipe, further heating the cooling liquid entering the warm air outlet pipe and additionally providing energy for the cooling liquid, so that the temperature of the cooling liquid is rapidly increased, the temperature rising speed of the cab is shortened, and the heating effect is improved.

Description

Technical Field

[0001] The present application relates to the field of motor vehicle technology, and in particular to a heating system and a motor vehicle. Background Art

[0002] The vehicle's heating system is mostly a waste water heating system. The working principle is to use the coolant in the water-cooled engine cooling system as the heat source, introduce the coolant into the heat exchanger in the cab, and the cabin air or external air sent by the blower exchanges heat with the coolant in the heat exchanger before entering the cabin.

[0003] The above-mentioned method of heating the air using the coolant of the cooling system has the problem that the coolant temperature is not high enough, resulting in slow heating of the cab and poor heating effect.

[0004] Therefore, how to increase the heating rate of the cab to solve the problem of poor heating effect has become a technical problem that needs to be urgently solved by those skilled in the art. Utility Model Content

[0005] The present application proposes a heating system to increase the heating speed of the cab and solve the problem of poor heating effect. The present application also proposes a motor vehicle.

[0006] In order to achieve the above objectives, the present application provides a heating system, comprising:

[0007] A cab heat exchanger having a warm air outlet pipe, the warm air outlet pipe being in communication with a water outlet of the engine's cooling system;

[0008] It also includes a heater, which is arranged on the warm air outlet pipe and is used to heat the warm air outlet pipe.

[0009] Preferably, in the above-mentioned warm air system, the heater is a heat exchanger, which is mounted on the warm air outlet pipe, the inlet of the heat exchanger is connected to the air compressor of the engine, and the outlet of the heat exchanger is connected to the gas cylinder of the vehicle, and the heat exchanger is used to transfer the heat of the high-temperature and high-pressure gas discharged from the air compressor to the warm air outlet pipe.

[0010] Preferably, in the above-mentioned heating system, the heat exchanger is connected in series with the air compressor exhaust pipe, wherein both ends of the air compressor exhaust pipe are respectively connected with the air compressor and the vehicle gas cylinder.

[0011] Preferably, in the above-mentioned heating system, the heat exchanger is connected in parallel with the air compressor exhaust pipe, wherein both ends of the air compressor exhaust pipe are respectively connected to the air compressor and the vehicle gas cylinder.

[0012] Preferably, in the above-mentioned warm air system, the portion of the warm air outlet pipe that cooperates with the heater is arranged in a spiral or curved shape.

[0013] Preferably, in the above-mentioned warm air system, the heater is an electric heater.

[0014] Preferably, in the above-mentioned warm air system, a heat-insulating layer is provided on the warm air outlet pipe.

[0015] Preferably, in the above-mentioned warm air system, the pipe diameter of the portion of the warm air outlet pipe cooperating with the heater is larger than the pipe diameter of the portion of the warm air outlet pipe located outside the heater.

[0016] A motor vehicle includes a heating system, wherein the heating system is the heating system described in any one of the above solutions.

[0017] Preferably, in the above motor vehicle, a heater of the warm air system is provided along at least 1 / 3 of the length of the warm air outlet pipe.

[0018] The warm air system provided in the embodiment of the present application includes a cab heat exchanger, which is connected to the water outlet of the engine's cooling system through a warm air outlet pipe, and is connected to the water inlet of the engine's cooling system through a warm air return pipe. The warm air system also includes a heater, which is arranged on the warm air outlet pipe to heat the warm air outlet pipe, and then heat the coolant entering the warm air outlet pipe, providing additional energy to the coolant, so that the temperature of the coolant is quickly increased, thereby shortening the heating rate of the cab and improving the heating effect.

[0019] This solution also discloses a motor vehicle including a heating system, wherein the heating system is the heating system described in any of the above solutions. Since the heating system has the above technical effects, the motor vehicle having the heating system also has the same technical effects, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the embodiments or prior art descriptions. Obviously, the drawings described below are only some examples or embodiments of the present application. For those of ordinary skill in the art, without paying any creative work, other drawings can be obtained based on the provided drawings, and the present application can also be applied to other similar scenarios based on the provided drawings. Unless it is obvious from the language context or otherwise explained, the same reference numerals in the figures represent the same structure or operation.

[0021] Figure 1 It is a structural diagram of the heating system of this application.

[0022] The accompanying drawings are as follows:

[0023] 1-Cab heat exchanger; 11-Warm air outlet pipe; 12-Warm air return pipe; 2-Heater. DETAILED DESCRIPTION

[0024] The present application will be further described in detail below with reference to the accompanying drawings and examples. It will be understood that the specific embodiments described herein are merely for explaining the related application and are not intended to limit the application. The described embodiments are merely a portion of the embodiments of the present application and are not intended to be exhaustive. All other embodiments derived by persons of ordinary skill in the art based on the embodiments in the present application without creative effort are intended to fall within the scope of protection of the present application.

[0025] It should be noted that, for ease of description, only the portions relevant to the relevant applications are shown in the accompanying drawings. In the absence of conflict, the embodiments and features in the embodiments of this application may be arbitrarily combined with each other, as long as the combined technical features are not mutually contradictory. All feasible feature combinations are technical contents explicitly described herein. Any of the multiple sub-features contained in the same statement can be applied independently, and does not necessarily have to be applied together with other sub-features.

[0026] As used in this application and the claims, unless the context clearly indicates an exception, the terms "a," "an," "an," and / or "the" are not intended to refer to the singular and may include the plural, unless the context clearly indicates otherwise. Generally speaking, the terms "comprises" and "include" only indicate the inclusion of the steps and elements specifically identified, and these steps and elements do not constitute an exclusive list. A method or apparatus may also include other steps or elements. The phrase "comprises a..." does not preclude the presence of additional identical elements in the process, method, product, or apparatus that includes the elements.

[0027] In the description of the embodiments of this application, unless otherwise specified, " / " represents or. For example, A / B can represent A or B. "And / or" in this article is simply a description of the association relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, in the description of the embodiments of this application, "plurality" means two or more than two.

[0028] See also Figure 1 .

[0029] Some embodiments of the present application disclose a warm air system, including a cab heat exchanger 1 and a heater 2. The cab heat exchanger 1 has a warm air outlet pipe 11. The cab heat exchanger 1 is connected to the water outlet of the engine's cooling system through the warm air outlet pipe 11. The cab heat exchanger 1 is connected to the water inlet of the engine's cooling system through the warm air return pipe 12.

[0030] The coolant flowing out of the water outlet of the engine's cooling system enters the cab heat exchanger 1 , and after exchanging heat with the cab heat exchanger 1 , the coolant returns to the engine through the warm air return pipe 12 connected to the cab heat exchanger 1 .

[0031] The warm air system disclosed in this solution also includes a heater 2, which is arranged on the warm air outlet pipe 11 and is used to heat the warm air outlet pipe 11, thereby heating the coolant entering the warm air outlet pipe 11, providing additional energy to the coolant, so that the temperature of the coolant is quickly increased, thereby shortening the heating speed of the cab and improving the heating effect.

[0032] The position of the heater 2 provided on the warm air outlet pipe 11 and the number of the heaters 2 are set by those skilled in the art according to actual needs.

[0033] Specifically, at least one heater 2 is provided on the warm air outlet pipe 11. In an embodiment in which at least two heaters 2 are provided on the warm air outlet pipe 11, the heaters 2 are arranged along the flow direction of the coolant in the warm air outlet pipe 11, and adjacent heaters 2 may be spaced apart or arranged closely together.

[0034] The heater 2 can be installed at any position of the warm air outlet pipe 11. The heater 2 can be installed at a position close to the water outlet of the cooling system, at a position away from the water outlet of the cooling system, or at a middle position of the warm air outlet pipe 11. Preferably, the heater 2 is installed at a position away from the water outlet of the cooling system so that the coolant can flow into the cab heat exchanger 1 after being heated by the heater 2, thereby reducing heat loss through the warm air outlet pipe 11.

[0035] In some embodiments, the heater 2 is a heat exchanger, which is sleeved on the warm air outlet pipe 11 and can heat the warm air outlet pipe 11 circumferentially.

[0036] The heat exchanger housing is connected to the engine's air compressor and the exhaust pipe that connects the vehicle's gas cylinders. An air compressor is a device used to compress gas and, on diesel engines, is used to inflate the vehicle's gas cylinders. After passing through the compressor, the gas becomes high-temperature, high-pressure gas, reaching temperatures of up to 180°C. This high-temperature, high-pressure gas exchanges heat with the heat exchanger, which then transfers the heat to the heater outlet pipe 11, raising the temperature of the coolant within it and resolving issues such as slow cab warming or poor heating performance.

[0037] The heating system disclosed in this solution combines heat extraction from the cooling system and the air compressor, and does not require heat extraction from the outside world. This not only reduces the difficulty of heating the heating system, but also does not require excessive improvements to the heating system, the air compressor and the cooling system. It has a simple structure and low cost.

[0038] The heating system disclosed in this solution utilizes the high-temperature gas discharged from the air compressor itself when it is pumping air to heat the coolant supplied to the heating system, thereby utilizing the thermal energy of the gas compressed by the air compressor, saving energy and being environmentally friendly.

[0039] The heat exchanger is mounted on the warm air outlet pipe 11 to achieve circumferential heating of the warm air outlet pipe 11, with good heating effect. In the case of limited installation space, the heat exchanger can be connected only to the exposed portion of the warm air outlet pipe 11, and the heat exchanger can be omitted for the non-exposed portion.

[0040] Specifically, the inlet of the heat exchanger is connected to the air compressor of the engine, and the outlet of the heat exchanger is connected to the gas cylinder of the vehicle. The heat exchanger transfers the heat in the high-temperature and high-pressure gas discharged from the air compressor to the warm air outlet pipe 11.

[0041] In the prior art, the air compressor is connected to the vehicle gas cylinder through the air compressor exhaust pipe. The flow direction of the gas is from the air compressor to the vehicle gas cylinder. The flow direction of the gas after heat exchange in the heat exchanger is also from the air compressor through the heat exchanger to the vehicle gas cylinder.

[0042] In some embodiments, the heat exchanger is connected in series with the air compressor exhaust pipe. Specifically, both ends of the air compressor exhaust pipe are connected to the air compressor and the vehicle gas cylinder respectively, and the heat exchanger is provided on the air compressor exhaust pipe.

[0043] In some embodiments, the heat exchanger is connected in parallel with the air compressor exhaust pipe. Specifically, both ends of the air compressor exhaust pipe are connected to the air compressor and the vehicle gas cylinder respectively, and the heat exchanger is connected to the air compressor exhaust pipe through a pipeline connected in parallel with the air compressor exhaust pipe.

[0044] Preferably, the heat exchanger is connected in parallel with the exhaust pipe of the air compressor, and a valve is provided on the pipe in which the heat exchanger and the exhaust pipe of the air compressor are arranged in parallel. The valve controls whether the heat exchanger is connected to the exhaust pipe of the air compressor, so as to heat the warm air outlet pipe 11 through the heat exchanger when needed, and not heat the warm air outlet pipe 11 through the heat exchanger when not needed.

[0045] In an embodiment in which the heat exchanger is connected in series with the exhaust pipe of the air compressor, when the coolant enters the cab heat exchanger 1 through the warm air outlet pipe 11, the heat exchanger heats the coolant in the warm air outlet pipe 11. When the coolant does not enter the cab heat exchanger 1 through the warm air outlet pipe 11, there is no coolant in the warm air outlet pipe 11, and the heat exchanger discharged from the air compressor cannot transfer heat to the coolant.

[0046] In order to further improve the heat exchange effect between the warm air outlet pipe 11 and the heater 2, the part of the warm air outlet pipe 11 and the heater 2 in this solution is spirally or curvedly arranged to increase the heat exchange length of the warm air outlet pipe 11 and the heater 2, thereby increasing the heat exchange area between the warm air outlet pipe 11 and the heater 2 and improving the heat exchange effect.

[0047] The heat exchanger includes a heat exchange tube. In some embodiments, the heat exchange tube extends in the same direction as the warm air outlet pipe 11 and is disposed circumferentially around the warm air outlet pipe 11. In some embodiments, the heat exchange tube is a spiral tube and is disposed circumferentially around the warm air outlet pipe 11.

[0048] The heater 2 is not limited to being a heat exchanger, but may also be an electric heater.

[0049] In the embodiment where the heater 2 is an electric heater, the electric heater can be powered by the vehicle power supply.

[0050] In order to reduce heat loss, in this solution, a thermal insulation layer is provided on the warm air outlet pipe 11 to insulate the warm air outlet pipe 11 and reduce heat exchange between the warm air outlet pipe 11 and the outside world.

[0051] In some embodiments, the diameter of the portion where the warm air outlet pipe 11 cooperates with the heater 2 is larger than the diameter of the portion where the warm air outlet pipe 11 is located outside the heater 2, so as to reduce the flow rate of the coolant in the portion where the warm air outlet pipe 11 cooperates with the heater 2 while increasing the contact area between the warm air outlet pipe 11 and the heater 2, thereby improving the heat exchange effect.

[0052] After the coolant flows through the portion where the warm air outlet pipe 11 cooperates with the heater 2, the flow rate of the coolant is accelerated, shortening the time for the coolant to flow from the heater 2 to the cab heat exchanger, thereby reducing heat loss.

[0053] This solution also discloses a motor vehicle including a heating system, wherein the heating system is the heating system described in any of the above solutions. Since the heating system has the above technical effects, the motor vehicle having the heating system also has the same technical effects, which will not be described in detail here.

[0054] At least 1 / 3 of the length of the warm air outlet pipe 11 is provided with the heater 2 of the warm air system to ensure the heating effect of the warm air system. Preferably, the heater 2 is provided along the entire length of the warm air outlet pipe 11, that is, the heater 2 is provided along 1 / 3-1 of the length of the warm air outlet pipe 11.

[0055] The above description is merely a preferred embodiment of the present application and an illustration of the technical principles employed, and is not intended to limit the present application. For those skilled in the art, various modifications and variations of the present application are possible. The scope of application involved in the present application is not limited to the technical solutions formed by a specific combination of the above-mentioned technical features, but should also cover other technical solutions formed by any combination of the above-mentioned technical features or their equivalents without departing from the above-mentioned application concept. For example, a technical solution formed by replacing the above-mentioned features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A heating system, characterized in that: include: The cab heat exchanger (1) has a warm air outlet pipe (11), and the warm air outlet pipe (11) is connected to the water outlet of the engine cooling system; It also includes a heater (2) which is arranged on the warm air outlet pipe (11) and is used to heat the warm air outlet pipe (11).

2. The heating system according to claim 1, characterized in that: The heater (2) is a heat exchanger, which is sleeved on the warm air outlet pipe (11). The inlet of the heat exchanger is connected to the air compressor of the engine, and the outlet of the heat exchanger is connected to the gas cylinder of the vehicle. The heat exchanger is used to transfer the heat of the high-temperature and high-pressure gas discharged from the air compressor to the warm air outlet pipe (11).

3. The heating system according to claim 2, characterized in that: The heat exchanger is connected in series with the air compressor exhaust pipe, wherein both ends of the air compressor exhaust pipe are respectively connected with the air compressor and the vehicle gas cylinder.

4. The heating system according to claim 2, characterized in that: The heat exchanger is connected in parallel with the air compressor exhaust pipe, wherein both ends of the air compressor exhaust pipe are respectively connected with the air compressor and the vehicle gas cylinder.

5. The heating system according to claim 4, characterized in that: The portion of the warm air outlet pipe (11) that cooperates with the heater (2) is arranged in a spiral or curved shape.

6. The heating system according to claim 1, characterized in that: The heater (2) is an electric heater.

7. The warm air system according to claim 1, 2, 3, 5 or 6, characterized in that: The warm air outlet pipe (11) is provided with a heat insulation layer.

8. The warm air system according to claim 1, 2, 3, 5 or 6, characterized in that: The pipe diameter of the portion of the warm air outlet pipe (11) that cooperates with the heater (2) is larger than the pipe diameter of the portion of the warm air outlet pipe (11) that is located outside the heater (2).

9. A motor vehicle, characterized in that: It comprises a warm air system, and the warm air system is the warm air system according to any one of claims 1 to 8.

10. The motor vehicle according to claim 9, characterized in that The heater (2) of the warm air system is provided along at least 1 / 3 of the length of the warm air outlet pipe (11).

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