Vehicle-mounted heater with precise temperature control

Abstract

The utility model discloses a vehicle-mounted warmer of precision temperature control, including the case, the lateral wall of case is equipped with hot -blast air outlet part, is equipped with heat exchanger, heat dissipation fan assembly, exhaust fan assembly and gas assembly in the case, and heat exchanger includes air inlet and air outlet, and gas assembly includes the combustion assembly at air inlet and the gas proportional valve that communicates with combustion assembly, and exhaust fan assembly is located at air outlet and is used for driving the hot flow produced by combustion assembly to flow in heat exchanger, and heat dissipation fan assembly is used for blowing the hot air of heat exchanger to hot -blast air outlet part. The utility model discloses adopt gas proportional valve control to the gas supply amount of combustion assembly, and the gas supply amount of combustion assembly is adjusted according to the use demand with the main control module, thereby the combustion power size of combustion assembly is accurately controlled, the heat supply heat of heat exchanger is accurately controlled, the heating temperature of heating to the house car is accurately controlled according to user demand, and the use experience of user is improved.

Description

Technical Field

[0001] This utility model relates to the field of vehicle heaters, and more particularly to vehicle heaters with precise temperature control. Background Technology

[0002] With the continuous improvement of economic living standards, more and more families are traveling in RVs. When using RVs in colder weather, it is necessary to equip them with gas-fired heaters to warm the interior. Existing vehicle-mounted gas heating systems cannot precisely control the gas supply or the combustion intensity, thus failing to effectively adjust the heating temperature according to user needs, resulting in a poor user experience. Utility Model Content

[0003] To facilitate precise control of the heating temperature inside the RV according to user needs, this utility model provides a vehicle-mounted heater with precise temperature control.

[0004] This utility model is achieved by the following solution:

[0005] A vehicle heater with precise temperature control includes a chassis. The outer wall of the chassis has a hot air outlet. Inside the chassis are a heat exchanger, a cooling fan assembly, a smoke exhaust fan assembly, and a gas assembly. The heat exchanger includes an air inlet and an air outlet. The gas assembly includes a combustion component located at the air inlet and a gas supply proportional valve connected to the combustion component. The smoke exhaust fan assembly is located at the air outlet and is used to drive the heat flow generated by the combustion component to flow within the heat exchanger. The cooling fan assembly is used to blow the hot air emitted by the heat exchanger toward the hot air outlet.

[0006] As described above, the vehicle heater with precise temperature control includes two heat exchange tubes spaced apart, and the combustion assembly includes two burners corresponding to the two heat exchange tubes, as well as an ignition needle and a flame sensing needle corresponding to the two burners respectively.

[0007] As described above, in a vehicle heater with precise temperature control, an ignition element is provided on the outer side of the two burners, and the ignition element on one burner extends toward the other burner.

[0008] As described above, the vehicle heater with precise temperature control includes a gas assembly comprising a gas distributor that supplies gas to the two burners and an intake pipe that supplies gas to the gas supply proportional valve, wherein the gas distributor is connected to the gas supply proportional valve.

[0009] As described above, the vehicle heater with precise temperature control has an exhaust fan pressure switch at the exhaust fan assembly.

[0010] As described above, the vehicle heater with precise temperature control includes a variable frequency fan or a constant speed fan in the cooling fan assembly, and a cooling fan pressure switch is provided at the cooling fan assembly.

[0011] As described above, the vehicle heater with precise temperature control has a main control module inside the casing that is electrically connected to the cooling fan assembly, the exhaust fan assembly, and the gas assembly.

[0012] As described above, the vehicle heater with precise temperature control has a first partition inside the chassis, which divides the chassis into a heat dissipation area and a component area. The heat exchanger is located in the heat dissipation area, and the heat dissipation fan assembly, the exhaust fan assembly, and the gas assembly are located in the component area. The first partition is equipped with a temperature sensing probe for detecting the heat dissipation area.

[0013] As described above, in a vehicle heater with precise temperature control, a second partition is provided between the cooling fan assembly and the exhaust fan assembly. The chassis is provided with an air inlet communicating with the cooling fan assembly and a vent pipe communicating with the exhaust fan assembly.

[0014] As described above, the vehicle heater with precise temperature control has a thermostat on the heat exchanger.

[0015] Compared with the prior art, this application has the following advantages:

[0016] 1. This utility model uses a gas supply ratio valve to control the gas supply to the combustion component. It can be easily coordinated with the main control module to precisely adjust the gas supply to the combustion component according to the usage requirements, thereby accurately controlling the combustion firepower of the combustion component and the heat output of the heat exchanger. This allows for precise control of the heating temperature inside the RV according to the user's needs, improving the user experience.

[0017] 2. This utility model uses a heat dissipation fan assembly to control the amount of hot air blown into the interior of the RV, and a smoke exhaust fan assembly to control the amount of smoke generated by the combustion components entering the heat exchanger. By having the two fan assemblies work separately, the heat exchange capacity of the heat exchanger and the amount of hot air blown into the interior of the RV can be further finely adjusted, so as to further improve the accuracy of controlling the heating temperature inside the RV. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0019] Figure 1 This is a structural schematic diagram of the vehicle heater with precise temperature control according to this utility model.

[0020] Figure 2This is a schematic diagram of the explosion and disassembly of the vehicle heater with precise temperature control according to this utility model. Figure 1 .

[0021] Figure 3 yes Figure 2 Enlarged schematic diagram of part I.

[0022] Figure 4 This is a schematic diagram of the explosion and disassembly of the vehicle heater with precise temperature control according to this utility model. Figure 2 .

[0023] Figure 5 This is a schematic diagram of the explosion and disassembly of the vehicle heater with precise temperature control according to this utility model. Figure 3 . Detailed Implementation

[0024] To make the technical problems, technical solutions, and beneficial effects solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0025] When ordinal numbers such as "first" and "second" are mentioned in the embodiments of this application, unless they actually express the meaning of order according to the context, they should be understood as being used only for distinction.

[0026] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0027] Example: Figures 1 to 5As shown, the vehicle heater with precise temperature control disclosed in this embodiment includes a housing 1. The outer wall of the housing 1 is provided with a hot air outlet 11. In this embodiment, the hot air outlet 11 can adopt an air outlet structure. The air outlet can be connected to a heat delivery pipe to guide the hot air into the interior of the RV. The housing 1 is provided with a heat exchanger 2, a cooling fan assembly 3, a smoke exhaust fan assembly 4, and a gas assembly 5. Preferably, the cooling fan assembly 3 includes a variable frequency fan or a fan with constant wind speed. The heat exchanger 2 includes an air inlet 21 and an air outlet 22. The gas assembly 5 includes a combustion component 51 located at the air inlet 21 and a gas supply proportioning valve 52 connected to the combustion component 51. The exhaust fan assembly 4 is located at the air outlet 22 and is used to drive the heat flow generated by the combustion component 51 to flow within the heat exchanger 2. The cooling fan assembly 3 is used to blow the hot air emitted by the heat exchanger 2 towards the hot air outlet 11. Furthermore, the chassis 1 is equipped with a main control module 6 electrically connected to the cooling fan assembly 3, the exhaust fan assembly 4, and the gas assembly 5. In this embodiment, by using the gas supply proportioning valve 52 to control the gas supply to the combustion component 51, the main control module can easily and precisely adjust the gas supply to the combustion component according to usage requirements, thereby precisely controlling the combustion firepower of the combustion component 51, and thus precisely controlling the heat output of the heat exchanger 2. This allows for precise control of the heating temperature inside the RV according to user needs, improving the user experience. In addition, in this embodiment, the heat dissipation fan assembly 3 controls the amount of hot air blown into the interior of the RV, and the smoke exhaust fan assembly 4 controls the amount of smoke generated by the combustion component 51 entering the heat exchanger 2. By having the two fan assemblies work separately, the heat exchange heat of the heat exchanger 2 and the amount of hot air blown into the interior of the RV can be further adjusted in a more precise manner, so as to further improve the accuracy of the control of the heating temperature inside the RV.

[0028] Furthermore, the heat exchanger 2 includes two heat exchange tubes 23 spaced apart, and the combustion assembly 51 includes two burners 511 corresponding to the two heat exchange tubes 23, and ignition needles 512 and flame sensing needles 513 corresponding to the two burners 511. By providing two heat exchange tubes 23, the heat exchange efficiency can be increased, ensuring that sufficient heat can be quickly generated to heat the interior of the RV.

[0029] Furthermore, an ignition element 514 is provided on the outer side of each of the two flame bars 511, with the ignition element 514 on one flame bar 511 extending towards the other flame bar 511. In this embodiment, the ignition needle 512 ignites its corresponding flame bar 511, and the ignition element 514 ignites the other flame bar 511. When the corresponding flame sensing needle 513 detects a flame, it sends a flame signal back to the main control module 6, ensuring that both flame bars 511 are ignited when the main control module 6 receives the flame signal.

[0030] Furthermore, the gas assembly 5 includes a gas distribution rod 53 that supplies gas to the two burners 511 and an intake pipe 54 that supplies gas to the gas supply proportioning valve 52. The gas distribution rod 53 is connected to the gas supply proportioning valve 52. The intake pipe 54 is used to connect to an external gas supply device to deliver gas to the gas supply proportioning valve 52. The gas distribution rod 53 can effectively distribute the gas output from the gas supply proportioning valve 52 to each burner 511, ensuring that both heat exchange tubes 23 can perform heat exchange operations.

[0031] Furthermore, the exhaust fan assembly 4 is equipped with an exhaust fan pressure switch 41. In this embodiment, the ignition needle 512 can generate a signal linkage with the exhaust fan pressure switch 41. When the exhaust fan pressure switch 41 senses that the exhaust fan assembly 4 has started to generate air pressure, the ignition needle 512 then discharges to ignite the gas, ensuring safe use. In this embodiment, the exhaust fan assembly 4 also generates a signal linkage with the gas supply proportional valve 52. The exhaust fan assembly 4 will adjust the wind speed according to the gas flow rate of the gas supply proportional valve 52. Under the premise of ensuring that the flame is fully burned in the burner 511, sufficient negative pressure is generated inside the heat exchanger 2 to discharge the exhaust gas.

[0032] Furthermore, a cooling fan pressure switch 31 is provided at the cooling fan assembly 3. In this embodiment, the cooling fan pressure switch 31 and the air supply proportional valve 52 also generate a signal linkage. When the cooling fan pressure switch 31 does not sense any air pressure at the cooling fan assembly 3, that is, when the cooling fan assembly 3 does not start normally, it will close the air supply proportional valve 52 to prevent the burner 511 from continuing to burn and wasting energy.

[0033] Furthermore, the chassis 1 is provided with a first partition 7, which divides the chassis 1 into a heat dissipation area 100 and a component area 200. The heat exchanger 2 is located in the heat dissipation area 100, and the cooling fan assembly 3, the exhaust fan assembly 4, and the gas assembly 5 are located in the component area 200. A second partition 8 is provided between the cooling fan assembly 3 and the exhaust fan assembly 4. The chassis 1 is provided with an air inlet 12 communicating with the cooling fan assembly 3 and a vent pipe 13 communicating with the exhaust fan assembly 4. The arrangement of the first partition 7 and the second partition 8 can reduce the mutual influence between the heat exchanger 2, the cooling fan assembly 3, the exhaust fan assembly 4, and the gas assembly 5, ensuring the normal operation of the machine. The temperature sensor 10 can be conveniently used to monitor the air temperature in the area surrounding the heat exchanger 2 in real time.

[0034] Furthermore, the heat exchanger 2 is equipped with a temperature controller 9, which can be electrically connected to the main control module 6 to monitor the heat on the heat exchanger 2.

[0035] The working principle of this embodiment is as follows:

[0036] When the main control module 6 receives the start signal, the exhaust fan assembly 4 starts. The exhaust fan pressure switch 41 detects the air pressure generated by the exhaust fan assembly 4, causing the ignition needle 512 to discharge. Subsequently, the gas supply proportional valve 52 begins to release gas. The ignition needle 512 ignites its corresponding burner 511, and the igniter 514 ignites another burner 511. When the corresponding flame sensing needle 513 detects the flame, it sends a flame signal back to the main control module 6, which then controls the cooling fan assembly 3 to start. Because the exhaust fan assembly 4 is installed at the end of the outlet 22 of the heat exchanger 2, a negative pressure environment is formed inside the heat exchanger 2. Under these conditions, the high-temperature flue gas generated by the burner 511 installed at the inlet 21 of the heat exchanger 2 flows inside the heat exchanger 2, thereby transferring heat to the heat exchanger 2. At this point, the heat collected on the heat exchanger is blown into the pipe connected to the hot air outlet 11 through the cooling fan assembly 3, and then distributed to the interior of the vehicle to provide heat to the interior of the RV.

[0037] The above description is one implementation method provided in conjunction with specific content, and does not imply that the specific implementation of this application is limited to these descriptions. Any methods or structures that are similar to or identical to those of this application, or any technical deductions or substitutions made based on the concept of this application, should be considered within the scope of protection of this application.

Claims

1. A car heater with precise temperature control, characterized in that, The device includes a chassis (1), the outer wall of which is provided with a hot air outlet (11). The chassis (1) contains a heat exchanger (2), a cooling fan assembly (3), a smoke exhaust fan assembly (4), and a gas assembly (5). The heat exchanger (2) includes an air inlet (21) and an air outlet (22). The gas assembly (5) includes a combustion component (51) located at the air inlet (21) and a gas supply proportional valve (52) connected to the combustion component (51). The smoke exhaust fan assembly (4) is located at the air outlet (22) and is used to drive the heat flow generated by the combustion component (51) to flow in the heat exchanger (2). The cooling fan assembly (3) is used to blow the hot air emitted by the heat exchanger (2) toward the hot air outlet (11).

2. The vehicle heater with precise temperature control according to claim 1, characterized in that, The heat exchanger (2) includes two heat exchange tubes (23) spaced apart, and the combustion assembly (51) includes two burners (511) corresponding to the two heat exchange tubes (23) and an ignition needle (512) and a flame sensing needle (513) corresponding to the two burners (511).

3. The vehicle heater with precise temperature control according to claim 2, characterized in that, The outer sides of the two fire bars (511) are provided with ignition elements (514), and the ignition elements (514) on one fire bar (511) extend toward the other fire bar (511).

4. The vehicle heater with precise temperature control according to claim 2, characterized in that, The gas assembly (5) includes a gas distributor (53) that supplies gas to the two burners (511) and an intake pipe (54) that supplies gas to the gas supply proportional valve (52). The gas distributor (53) is connected to the gas supply proportional valve (52).

5. The vehicle heater with precise temperature control according to any one of claims 1-4, characterized in that, The exhaust fan assembly (4) is equipped with an exhaust fan pressure switch (41).

6. The vehicle heater with precise temperature control according to any one of claims 1-4, characterized in that, The cooling fan assembly (3) includes a variable frequency fan or a constant speed fan, and a cooling fan pressure switch (31) is provided at the cooling fan assembly (3).

7. The vehicle heater with precise temperature control according to any one of claims 1-4, characterized in that, The chassis (1) is equipped with a main control module (6) that is electrically connected to the cooling fan assembly (3), the exhaust fan assembly (4) and the gas assembly (5).

8. The vehicle heater with precise temperature control according to any one of claims 1-4, characterized in that, The chassis (1) is provided with a first partition (7), which divides the chassis (1) into a heat dissipation area (100) and a component area (200). The heat exchanger (2) is located in the heat dissipation area (100), and the heat dissipation fan assembly (3), the exhaust fan assembly (4), and the gas assembly (5) are located in the component area (200). The first partition (7) is provided with a temperature sensor (10) for detecting the heat dissipation area (100).

9. The vehicle heater with precise temperature control according to claim 8, characterized in that, A second partition (8) is provided between the cooling fan assembly (3) and the exhaust fan assembly (4). The chassis (1) is provided with an air inlet (12) communicating with the cooling fan assembly (3) and a ventilation pipe (13) communicating with the exhaust fan assembly (4).

10. The vehicle heater with precise temperature control according to any one of claims 1-4, characterized in that, The heat exchanger (2) is equipped with a temperature controller (9).

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