Water-cooled blower

Abstract

The water-cooled blower comprises a fan assembly and a water circulation cooling system, the fan assembly comprises a small gasoline engine, an impeller and a volute, the impeller is arranged in the volute in a sleeved mode, and a power output shaft of the small gasoline engine can drive the impeller to rotate. The water circulation cooling system comprises a water flow conveying driving mechanism, a circulation through pipeline, a water tank and a radiator, the radiator is arranged right behind the air inlet of the volute, and the circulation through pipeline achieves through connection of the water flow conveying driving mechanism, the water tank, the radiator and a cylinder body on the small gasoline engine. According to the water-cooled blower, the working temperature of the engine can be effectively achieved through the water-cooled circulating system, so that the compression ratio of the engine can be increased, the power of the engine can be increased, and then the air outlet amount of the blower can be increased.

Description

Technical Field

[0001] The invention relates to the technical field of hair dryers, in particular to a water-cooled hair dryer. Background Art

[0002] Hair dryers are often used to extinguish forest surface fires or garden fires because of their strong blowing ability and easy portability.

[0003] Existing traditional hair dryers generally use small gasoline engines and are generally air-cooled. Although forced air-cooled engines have the advantages of high reliability and low ambient temperature requirements, they have high operating temperatures and a compression ratio of about 7:1, which leads to reduced combustion efficiency. The power of the internal combustion engine is not high, resulting in a small air output of the hair dryer. At present, hair dryer users all hope to increase the wind speed and air volume of the hair dryer, and also reduce the weight of the whole machine. Therefore, a simple air-cooled engine cannot meet the requirements. Summary of the invention

[0004] The purpose of the present invention is to provide a water-cooled hair dryer, which adopts a water-cooling circulation system to effectively reduce the operating temperature of the engine, thereby increasing the compression ratio of the engine. When the compression ratio of the engine is increased, the engine power can be increased, and then the air output of the hair dryer can be increased.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a water-cooled hair dryer, including a fan assembly and a water circulation cooling system, the fan assembly includes a small gasoline engine, an impeller, and a volute, the impeller is sleeved in the volute, the power output shaft of the small gasoline engine can drive the impeller to rotate, the water circulation cooling system includes a water flow conveying drive mechanism, a circulation through pipeline, a water tank, and a radiator, the radiator is arranged directly behind the air inlet of the volute, and the circulation through pipeline realizes the through connection of the water flow conveying drive mechanism, the water tank, the radiator and the cylinder body on the small gasoline engine.

[0006] Preferably, the water-cooled hair dryer also includes an overload protection system, which includes a temperature control switch, which is arranged inside the cylinder body. The temperature control switch is connected to the magneto stator on the small gasoline engine through a wire, and the temperature control switch is connected in parallel with the parking switch of the small gasoline engine.

[0007] Preferably, the circulating through pipeline includes a first pipe, a second pipe, and a third pipe. The first pipe realizes a through connection between the water outlet end of the water flow conveying drive mechanism and the water inlet end of the cylinder body, the second pipe realizes a through connection between the water outlet end of the cylinder body and the water inlet end of the radiator, and the third pipe realizes a through connection between the water outlet end of the radiator and the water inlet end of the water tank. The water tank can supply water to the water inlet end of the water flow conveying drive mechanism.

[0008] Preferably, the water flow conveying drive mechanism includes an electric water pump and a battery, the water inlet end of the electric water pump is through-connected with the water outlet end of the water tank, the water outlet end of the electric water pump is through-connected with the first pipeline, and the battery provides power for the electric water pump.

[0009] Preferably, the water flow conveying drive mechanism includes a centrifugal pump, a fourth pipeline, and a driving mechanism. The centrifugal pump is fixedly arranged on the volute and located at the air inlet of the volute. The fourth pipeline realizes a through connection between the water inlet end of the centrifugal pump and the water outlet end of the water tank. The water inlet end of the first pipeline is through connected with the water outlet end of the centrifugal pump. The driving mechanism is used to realize the rotational drive of the centrifugal pump.

[0010] Furthermore, the driving mechanism is the power output shaft of the small gasoline engine, and the power input end of the centrifugal pump is connected to the rear end of the power delivery shaft.

[0011] Furthermore, the driving mechanism is a wind impeller, and the wind impeller is arranged at the front end of the rotating shaft of the centrifugal pump.

[0012] Preferably, the water-cooled hair dryer further comprises a back frame, the blower assembly is arranged on the back frame, a central ventilation hole is arranged on the back plate of the back frame, and the radiator is arranged on the back plate and is located in front of the central ventilation hole.

[0013] Preferably, the water-cooled hair dryer further comprises a portable bracket, the blower assembly is arranged on the portable bracket, and the radiator is arranged on the portable bracket.

[0014] The beneficial effects of the present invention are as follows: the present invention has a simple structure and is convenient for processing and manufacturing; in the actual working process, the water circulation cooling system can be used to realize the continuous circulation of cooling water in the cylinder body of the gasoline engine, and the gasoline engine is cooled by the heat exchange between the cooling water and the cylinder body. When the working temperature of the gasoline engine is reduced, the fuel compression ratio of the gasoline engine can be improved, and then the power of the gasoline engine can be effectively improved. The increased power of the gasoline engine is convenient for increasing the air volume of the hair dryer; after absorbing heat, the cooling water dissipates heat through the radiator, and then the cooling of the cooling water is realized, thereby ensuring the heat exchange effect between the cooling water and the cylinder body. The radiator is arranged at the air inlet of the volute, so that the radiator is in the flowing air flow, and then the heat dissipation effect of the radiator can be improved, thereby improving the cooling effect of the cooling water; when the power output shaft of the gasoline engine is used as the driving power source of the centrifugal pump, the structural design of the present invention can be simplified; when the wind impeller is used as the driving power source of the centrifugal pump, energy saving can be achieved; using the overload protection system, the high-temperature overload protection of the gasoline engine can be effectively realized, and the running stability of the gasoline engine is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some preferred embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 It is a side view of the overall structure of the present invention;

[0018] Figure 3 The schematic diagram of the circulation flow of cooling water;

[0019] Figure 4 It is a schematic diagram of the composition structure of the overload protection system;

[0020] Figure 5 A schematic diagram of a second specific embodiment of a water circulation cooling system from a first perspective;

[0021] Figure 6 A schematic diagram of cooling water flow in a second specific embodiment of a water circulation cooling system;

[0022] Figure 7 A schematic diagram of a third specific embodiment of a water circulation cooling system from a first perspective;

[0023] Figure 8 A schematic diagram of cooling water flow in a third specific embodiment of a water circulation cooling system;

[0024] Fig. 9 for Figure 1 Enlarged view of point A in the middle;

[0025] In the figure: 1 small gasoline engine, 11 cylinder block, 12 power output shaft, 2 volute, 21 rear cover, 211 hollow bracket, 31 electric water pump, 311 battery, 32 centrifugal pump, 33 wind impeller, 41 first pipeline, 42 second pipeline, 43 third pipeline, 44 fourth pipeline, 5 water tank, 6 radiator, 71 temperature control switch, 72 wire, 73 magneto stator, 8 back frame, 81 back plate, 811 center vent. DETAILED DESCRIPTION

[0026] The following will be combined with specific embodiments and attached Figure 1-9 , the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the preferred embodiments of the present invention, rather than all the embodiments. Those skilled in the art can make similar modifications without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0027] The present invention provides a water-cooled hair dryer (such as Figure 1As shown), it includes a fan assembly and a water circulation cooling system. The fan assembly includes a small gasoline engine 1, an impeller, and a volute 2. The small gasoline engine 1, the impeller and the volute 2 are all known common technical products in the technical field, so the specific structure and working principle of the small gasoline engine 1, the impeller and the volute 2 are not described in detail. The impeller is sleeved in the volute 2, and the power output shaft 12 of the small gasoline engine 1 can drive the impeller to rotate. In actual application, the small gasoline engine 1 is set on the volute 2. When the impeller rotates highly, The air outlet of the volute 2 forms a high-pressure and high-speed airflow. The water circulation cooling system includes a water flow conveying drive mechanism, a circulating through pipeline, a water tank 5, and a radiator 6. The radiator 6 is arranged directly behind the air inlet of the volute 2. When the impeller rotates at a high speed, the external airflow continuously enters the volute 2 through the air inlet of the volute 2. The airflow flowing at the air inlet takes away the heat dissipated by the radiator 6, thereby improving the heat dissipation effect of the radiator 6; the circulating through pipeline realizes the through connection of the water flow conveying drive mechanism, the water tank 5, the radiator 6 and the cylinder body 11 on the small gasoline engine 1. In actual applications, the cooling water can be continuously circulated in the cylinder 11 through the circulating through pipeline. The cooling water can continuously take away the heat of the small gasoline engine 1 through the heat exchange between the cooling water and the cylinder 11, so that the working temperature of the small gasoline engine 1 can be effectively controlled. If the working temperature of the small gasoline engine 1 is low, it is easy to increase the working compression ratio of the small gasoline engine 1. If the working compression ratio of the small gasoline engine 1 is increased, its power can be increased, and then the air output of the hair dryer can be effectively increased.

[0028] In order to improve the working safety of the small gasoline engine 1, the water-cooled hair dryer also includes an overload protection system. The overload protection system includes a temperature control switch 71. The temperature control switch 71 is a mature technology product on the existing market, so the detailed structure and working principle of the temperature control switch 71 are no longer described in detail. The temperature control switch 71 is arranged inside the cylinder 11. The temperature control switch 71 is connected to the magneto stator 73 on the small gasoline engine 1 through a wire 72, and the temperature control switch 71 is connected in parallel with the parking switch on the small gasoline engine 1. In actual application, the parking switch is in a normally open state. When the parking switch is pressed, the parking switch is closed. After the parking switch is closed, the flameout operation of the small gasoline engine is realized. During the working process of the small gasoline engine 1, when the temperature in the cylinder 11 exceeds the set value of the temperature control switch 71, the temperature control switch 71 is automatically closed. After the temperature control switch 71 is automatically closed, the magneto on the small gasoline engine 1 cannot output high voltage current, so that the spark plug cannot ignite normally, and then the flameout protection of the small gasoline engine 1 is realized.

[0029] On the basis of the above embodiment, the specific implementation of the circulating through pipeline is as follows: the circulating through pipeline includes a first pipeline 41, a second pipeline 42, and a third pipeline 43. The first pipeline 41, the second pipeline 42 and the third pipeline 43 can be hoses or stainless steel pipes. The first pipeline 41 realizes the through connection between the water outlet end of the water flow conveying driving mechanism and the water inlet end of the cylinder body 11, the second pipeline 42 realizes the through connection between the water outlet end of the cylinder body 11 and the water inlet end of the radiator 6, and the third pipeline 43 realizes the through connection between the water outlet end of the radiator 6 and the water inlet end of the water tank 5. The water tank 5 can supply water to the water inlet end of the water flow conveying driving mechanism. Through the water flow conveying driving mechanism, the cooling water in the water tank 5 can be continuously circulated between the water tank 5, the cylinder body 11 and the radiator 6, so that the cooling water is used to cool the small gasoline engine 1, so that the small gasoline engine 1 can be at a lower operating temperature.

[0030] On the basis of the above embodiments, a first specific implementation of the water flow conveying drive mechanism is as follows: the water flow conveying drive mechanism includes an electric water pump 31 and a battery 311. The inlet end of the electric water pump 31 is through-connected with the water outlet end of the water tank 5, and the water outlet end of the electric water pump 31 is through-connected with the first pipe 41. The battery 311 provides power for the electric water pump 31. When the hair dryer starts working, the control switch of the electric water pump 31 is turned on to realize the water delivery work of the electric water pump 31.

[0031] On the basis of the above embodiment, a second specific implementation of the water flow conveying driving mechanism is as follows: the water flow conveying driving mechanism includes a centrifugal pump 32, a fourth pipeline 44, and a driving mechanism. The centrifugal pump is a known mature technology product on the existing market, so the detailed structure and working principle of the centrifugal pump are no longer described in detail here. The centrifugal pump 32 is fixedly arranged on the volute 2 and is located at the air inlet of the volute 2. Specifically, a hollow bracket 211 is arranged at the center of the rear cover 21 of the volute 2. The hollow bracket 211 is circular. The centrifugal pump 32 is fixedly arranged on the hollow bracket 211. The fourth pipeline 44 realizes the through connection between the water inlet end of the centrifugal pump 32 and the water outlet end of the water tank 5. The water inlet end of the first pipeline 41 is through-connected with the water outlet end of the centrifugal pump 32. The driving mechanism is used to realize the rotation drive of the centrifugal pump 32. When the centrifugal pump 32 is started, the water flow can be driven. Further, in this specific embodiment, two drive mechanisms are designed. A specific implementation method, the specific implementation method of the first specific implementation method of the driving mechanism is: the driving mechanism is the power output shaft 12 of the small gasoline engine 1, and the power input end of the centrifugal pump 32 is connected to the rear end of the power delivery shaft 12. When the small gasoline engine 1 is started, the power output shaft 12 synchronously drives the impeller and the centrifugal pump 32 to rotate, the rotation of the impeller realizes blowing, and the rotation of the centrifugal pump 32 realizes the circulation of cooling water between the radiator 6 and the cylinder body 11, and then the radiator 6 is used to effectively reduce the operating temperature of the engine; the specific implementation method of the second specific implementation method of the driving mechanism is: the driving mechanism is a wind impeller 33, and the wind impeller 33 is arranged at the front end of the rotating shaft of the centrifugal pump 32. In actual application, when the small gasoline engine 1 is working, the airflow at the air inlet of the volute 2 continuously blows the wind impeller 33 to rotate, and the rotation of the wind impeller 33 realizes the rotation drive of the centrifugal pump 32, and then realizes the circulation drive of cooling water.

[0032] On the basis of the above embodiment, the water-cooled hair dryer also includes a back frame 8, the fan assembly is arranged on the back frame 8, and the bottom and upper rear side of the volute 2 are fixedly connected to the back frame 8 through a vibration damping seat, and a central ventilation hole 811 is arranged on the back plate 81 of the back frame 8. The radiator 6 is arranged on the back plate 81 and is located in front of the central ventilation hole 811. The radiator 6 is located in front of the back plate 81, so that when the hair dryer is carried, the radiator 6 will not affect the use of the back frame 8.

[0033] In practical applications, the water-cooled hair dryer can also be used in a portable manner. Specifically, the water-cooled hair dryer also includes a portable bracket, and the fan assembly is arranged on the portable bracket. Specifically, the bottom and upper corresponding positions of the volute 2 are fixedly connected to the portable bracket by a vibration-damping seat, and the radiator 6 is arranged on the portable bracket.

[0034] In the present invention, "up", "down", "front", "back", "left" and "right" are relative positions used to conveniently describe positional relationships, and therefore cannot be understood as absolute positions to limit the scope of protection.

[0035] Except for the technical features described in the specification, all other technical features are known technologies to those skilled in the art.

[0036] The above description in combination with the accompanying drawings has detailed the preferred implementation modes and embodiments of the present invention, but the present invention is not limited to the above implementation modes and embodiments. For ordinary technicians in this technical field, several improvements and modifications can be made without departing from the concept of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A water-cooled hair dryer, comprising a blower assembly, wherein the blower assembly comprises a small gasoline engine, an impeller, and a volute, wherein the impeller is sleeved in the volute, and the power output shaft of the small gasoline engine can drive the impeller to rotate, wherein: The water-cooled hair dryer also includes a water circulation cooling system, which includes a water flow conveying drive mechanism, a circulation through-pipe, a water tank, and a radiator. The radiator is arranged directly behind the air inlet of the volute, and the circulation through-pipe realizes a through connection between the water flow conveying drive mechanism, the water tank, the radiator and the cylinder body on the small gasoline engine.

2. A water-cooled hair dryer according to claim 1, characterized in that: The water-cooled hair dryer also includes an overload protection system, which includes a temperature control switch. The temperature control switch is arranged inside the cylinder body, and the temperature control switch is connected to the magneto stator on the small gasoline engine through a wire, and the temperature control switch is connected in parallel with the parking switch of the small gasoline engine.

3. A water-cooled hair dryer according to claim 1, characterized in that: The circulating through pipeline includes a first pipeline, a second pipeline, and a third pipeline. The first pipeline realizes a through connection between the water outlet end of the water flow conveying driving mechanism and the water inlet end of the cylinder body, the second pipeline realizes a through connection between the water outlet end of the cylinder body and the water inlet end of the radiator, and the third pipeline realizes a through connection between the water outlet end of the radiator and the water inlet end of the water tank. The water tank can supply water to the water inlet end of the water flow conveying driving mechanism.

4. A water-cooled hair dryer according to claim 3, characterized in that: The water flow conveying driving mechanism includes an electric water pump and a battery. The water inlet end of the electric water pump is connected to the water outlet end of the water tank, the water outlet end of the electric water pump is connected to the first pipeline, and the battery provides power for the electric water pump.

5. A water-cooled hair dryer according to claim 3, characterized in that: The water flow conveying driving mechanism includes a centrifugal pump, a fourth pipeline, and a driving mechanism. The centrifugal pump is fixedly arranged on the volute and located at the air inlet of the volute. The fourth pipeline realizes a through connection between the water inlet end of the centrifugal pump and the water outlet end of the water tank. The water inlet end of the first pipeline is through connected with the water outlet end of the centrifugal pump. The driving mechanism is used to realize the rotational drive of the centrifugal pump.

6. A water-cooled hair dryer according to claim 5, characterized in that: The driving mechanism is the power output shaft of the small gasoline engine, and the power input end of the centrifugal pump is connected to the rear end of the power delivery shaft.

7. A water-cooled hair dryer according to claim 5, characterized in that: The driving mechanism is a wind impeller, and the wind impeller is arranged at the front end of the rotating shaft of the centrifugal pump.

8. A water-cooled hair dryer according to any one of claims 1 to 7, characterized in that: The water-cooled hair dryer also includes a back frame, the blower assembly is arranged on the back frame, a central ventilation hole is arranged on the back plate of the back frame, and the radiator is arranged on the back plate and located in front of the central ventilation hole.

9. A water-cooled hair dryer according to any one of claims 1 to 7, characterized in that: The water-cooled hair dryer also includes a portable bracket, the blower assembly is arranged on the portable bracket, and the radiator is arranged on the portable bracket.

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