Parking heater with double brushless motors

Abstract

The utility model relates to a parking heater with double brushless motors, and the heater comprises a motor support which is provided with a combustion-supporting air inlet, and the motor support is internally provided with two motors; the air inlet wind wheel is rotatably arranged at the upper end of the motor support, and a motor located on the upper side of the motor support drives the air inlet wind wheel to rotate; the combustion-supporting wind wheel is rotatably arranged at the lower end of the motor support, and a motor located on the lower side of the motor support drives the combustion-supporting wind wheel to rotate; the combustion chamber is arranged at the lower end of the motor support, and a plurality of ignition plugs are arranged on the combustion chamber and connected with the oil inlet; and the heat dissipation body is arranged on the outer side of the combustion chamber, and a waste gas exhaust port is formed in the heat dissipation body. A water heating cavity is formed in the side wall of the heat dissipation body, and a water inlet and a water outlet are formed in the water heating cavity. Stable starting can be achieved, and the function of preparing hot water is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of heaters, in particular to a dual brushless motor parking heater. Background Art

[0002] At present, a parking heater generally uses a motor with shafts at both ends to drive a combustion air blower wheel and a hot air blower wheel to rotate synchronously, and the rotational speeds of the two blower wheels restrict each other.

[0003] If the rotational speed of the combustion air blower wheel is too high or too low, it will cause the fire to be blown out by strong wind or insufficient oxygen due to weak wind, resulting in incomplete combustion. Therefore, the rotational speed of the hot air blower wheel is restricted by that of the combustion air blower wheel and cannot be increased arbitrarily to increase the air volume. When the heater switches from high gear to low gear, since the air volume of the hot air blower wheel needs to consider the internal heat of the heater, the rotational speed of the hot air blower wheel drops too fast, and the internal heat of the heater cannot be blown out in time, resulting in heat accumulation. Therefore, the combustion air blower wheel is restricted by the hot air blower wheel and the downshift time is relatively long. When it is necessary to shut down the machine, the combustion air blower wheel burns the remaining oil at a low speed, resulting in the hot air blower wheel being unable to blow cool the machine at a high rotational speed and a large air volume, thus prolonging the shutdown delay.

[0004] Currently, air heaters on the market usually come with a single spark plug. If this sole spark plug fails, the parking heater will not be able to start. Moreover, with the development of recreational vehicles, heating and sanitary hot water are necessary requirements, and the air heaters on the market currently do not have the function of preparing hot water. Content of the Utility Model

[0005] In order to solve the technical problems in the background art, the utility model provides a dual brushless motor parking heater, which can achieve stable startup and has the function of preparing hot water.

[0006] The technical solution adopted by the utility model to solve its technical problems is as follows:

[0007] A dual brushless motor parking heater, comprising:

[0008] A motor bracket, on which a combustion air inlet is provided, and two motors are arranged inside the motor bracket;

[0009] An air inlet blower wheel, rotatably arranged at the upper end of the motor bracket, and the motor located above the motor bracket drives the air inlet blower wheel to rotate;

[0010] A combustion air blower wheel, rotatably arranged at the lower end of the motor bracket, and the motor located below the motor bracket drives the combustion air blower wheel to rotate;

[0011] A combustion chamber, arranged at the lower end of the motor bracket, on which a plurality of spark plugs are provided, and all the plurality of spark plugs are connected to an oil inlet;

[0012] The heat sink is arranged outside the combustion chamber, and an exhaust gas outlet is provided on the heat sink.

[0013] Furthermore, a water heating cavity is formed on the side wall of the heat sink, and a water inlet and a water outlet are provided on the water heating cavity.

[0014] Furthermore, a controller is fixedly arranged on one side of the motor bracket.

[0015] Furthermore, the motor bracket and the combustion air inlet are integrally formed.

[0016] Furthermore, a first spark plug and a second spark plug are arranged on the combustion chamber at intervals, and both the first spark plug and the second spark plug are connected to the fuel inlet.

[0017] Furthermore, the first spark plug and the second spark plug are arranged in a mirror-symmetrical manner.

[0018] Furthermore, the included angle between the first spark plug and the second spark plug is 45°.

[0019] Furthermore, it further includes:

[0020] A housing, and the combustion air inlet, the exhaust gas outlet, the water inlet, the water outlet and the fuel inlet all pass through the housing;

[0021] An air inlet housing and an air outlet housing are respectively arranged at both ends of the housing.

[0022] Advantages of the present utility model:

[0023] (1) Two spark plugs are arranged on the combustion chamber, and the two spark plugs can work independently, forming a redundant system. Such a design makes the whole system more stable during operation. Even if one of the spark plugs fails, the other can still ensure the normal start and operation of the heater.

[0024] (2) The side wall of the heat sink is specially designed with a water heating cavity. When water flows through these water heating cavities, it will be effectively heated. Such a design not only improves the heat dissipation efficiency but also endows the device with an additional function of preparing hot water, making the device more practical and efficient.

[0025] (3) The air inlet fan and the combustion air fan are respectively driven by two motors. By respectively controlling the rotation speeds of the air inlet fan and the combustion air fan, the problems of long downshift and shutdown delay time are solved, and the heating effect is improved. Description of the Drawings

[0026] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0027] Figure 1 is the external structural schematic diagram of the present utility model;

[0028] Figure 2 is a schematic diagram of the internal structure of the present utility model;

[0029] Figure 3 is a schematic diagram of the internal structure of the present utility model after removing the heat sink;

[0030] Figure 4 is a schematic diagram of the structure of the combustion chamber;

[0031] Figure 5 is a schematic diagram of the structure of the heat sink.

[0032] In the figure:

[0033] 1. Housing, 2. Outer shell of the air inlet, 3. Outer shell of the air outlet, 4. Combustion-supporting air inlet, 5. Exhaust gas outlet, 6. Water inlet, 7. Water outlet, 8. Air inlet fan, 9. Motor bracket, 10. Heat sink, 11. Water heating cavity, 12. Controller, 13. Combustion chamber, 14. First spark plug, 15. Second spark plug, 16. Combustion-supporting air fan, 17. Fuel inlet. Specific embodiments

[0034] The present utility model will be further described in detail below with reference to the accompanying drawings.

[0035] A double brushless motor parking heater includes a motor bracket 9. A combustion-supporting air inlet 4 is provided on the motor bracket 9. The motor bracket 9 and the combustion-supporting air inlet 4 are integrally formed. The combustion-supporting air inlet 4 communicates with the combustion chamber 13. A controller 12 is fixedly provided on one side of the motor bracket 9.

[0036] Two motors facing opposite directions are fixedly provided inside the motor bracket 9. The controller 12 can independently control each motor. The output end of the upper motor faces upward, and the output end of the lower motor faces downward. The air inlet fan 8 is rotatably provided at the upper end of the motor bracket 9. The motor located on the upper side of the motor bracket 9 drives the air inlet fan 8 to rotate. The combustion-supporting air fan 16 is rotatably provided at the lower end of the motor bracket 9. The motor located on the lower side of the motor bracket 9 drives the combustion-supporting air fan 16 to rotate. The combustion-supporting air fan 16 is located between the combustion-supporting air inlet 4 and the combustion chamber 13.

[0037] The air inlet fan 8 and the combustion-supporting air fan 16 are respectively driven by two motors. By respectively controlling the rotation speeds of the air inlet fan 8 and the combustion-supporting air fan 16, the problems of long downshift and shutdown delay times are solved, and the heating effect is improved.

[0038] The combustion chamber 13 is arranged at the lower end of the motor bracket 9. A plurality of spark plugs are arranged on the combustion chamber 13, and all the plurality of spark plugs are connected to the fuel inlet 17. Specifically, a first spark plug 14 and a second spark plug 15 are arranged at intervals on the combustion chamber 13, and both the first spark plug 14 and the second spark plug 15 are connected to the fuel inlet 17. The first spark plug 14 and the second spark plug 15 are arranged in a mirror-symmetrical manner. The included angle between the first spark plug 14 and the second spark plug 15 is 45°.

[0039] The two spark plugs arranged in this way do not interfere with each other and have the best ignition effect. Moreover, two spark plugs are arranged on the combustion chamber 13, and the two spark plugs can work independently, forming a redundant system. Such a design makes the whole system more stable during operation. Even if one of the spark plugs fails, the other can still ensure the normal start and operation of the heater.

[0040] The radiator 10 is arranged outside the combustion chamber 13, and an exhaust gas outlet 5 is arranged on the radiator 10. A water heating cavity 11 is formed in the side wall of the radiator 10, and a water inlet 6 and a water outlet 7 are arranged on the water heating cavity 11.

[0041] The combustion-supporting air enters the combustion chamber 13 from the combustion-supporting air inlet 4 and burns in the combustion chamber 13. The high-temperature exhaust gas after combustion is discharged from the exhaust gas outlet 5. During this process, the temperature of the radiator 10 also rises. When water flows through the water heating cavity 11, it will be effectively heated, so that hot water flows out from the water outlet 7. Such a design not only improves the heat dissipation efficiency but also endows the device with an additional function of preparing hot water, making the device more practical and efficient.

[0042] Furthermore, it further includes a housing 1. The air inlet housing 2 and the air outlet housing 3 are respectively arranged at both ends of the housing 1. The combustion-supporting air inlet 4, the exhaust gas outlet 5, the water inlet 6, the water outlet 7 and the fuel inlet 17 all pass through the housing 1.

[0043] The housing 1 can play a role in heat insulation. The outside air enters the interior of the housing 1 from the air inlet housing 2 and flows out from the air outlet housing 3. During this process, the heat inside the housing 1 is taken away, so that the interior of the housing 1 will not overheat.

[0044] Enlightened by the above ideal embodiments according to the present invention, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of this invention. The technical scope of this invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A dual brushless motor parking heater, characterized in that: include: A motor bracket (9), wherein the motor bracket (9) is provided with a combustion air inlet (4), and two motors are arranged in the motor bracket (9); An air inlet impeller (8) is rotatably arranged at the upper end of the motor bracket (9), and a motor located on the upper side of the motor bracket (9) drives the air inlet impeller (8) to rotate; A combustion-supporting wind wheel (16) is rotatably arranged at the lower end of the motor bracket (9), and a motor located at the lower side of the motor bracket (9) drives the combustion-supporting wind wheel (16) to rotate; A combustion chamber (13) is arranged at the lower end of the motor bracket (9), and a plurality of ignition plugs are arranged on the combustion chamber (13), and the plurality of ignition plugs are all connected to the oil inlet (17); The heat sink (10) is arranged outside the combustion chamber (13), and an exhaust gas outlet (5) is provided on the heat sink (10).

2. A dual brushless motor parking heater according to claim 1, characterized in that: A water heating cavity (11) is provided on the side wall of the heat sink (10), and a water inlet (6) and a water outlet (7) are provided on the water heating cavity (11).

3. A dual brushless motor parking heater according to claim 1, characterized in that: A controller (12) is fixedly arranged on one side of the motor bracket (9).

4. A dual brushless motor parking heater according to claim 1, characterized in that: The motor bracket (9) and the combustion air inlet (4) are integrally formed.

5. The dual brushless motor parking heater according to claim 1, characterized in that: A first ignition plug (14) and a second ignition plug (15) are arranged at intervals on the combustion chamber (13); the first ignition plug (14) and the second ignition plug (15) are both connected to the oil inlet (17).

6. A dual brushless motor parking heater according to claim 5, characterized in that: The first ignition plug (14) and the second ignition plug (15) are arranged in a mirror-symmetrical manner.

7. A dual brushless motor parking heater according to claim 6, characterized in that: The included angle between the first ignition plug (14) and the second ignition plug (15) is 45°.

8. The dual brushless motor parking heater according to claim 2, characterized in that: Also includes: A shell (1), wherein the combustion air inlet (4), the exhaust gas outlet (5), the water inlet (6), the water outlet (7) and the oil inlet (17) all pass through the shell (1); The air inlet housing (2) and the air outlet housing (3) are respectively arranged at two ends of the housing (1).

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