Double-duct hot air guide structure and dryer using the same

Abstract

To provide a dryer capable of achieving higher air blowing efficiency and a more uniform air blowing temperature, and heating and blowing air to a certain part for a longer time without causing a burn when a user uses the dryer.SOLUTION: The present disclosure relates to a double-duct hot air guide structure and a dryer using the same. The double-duct hot air guide structure includes a shell, a heating module and a blowing module. The shell is provided with an outer sleeve-shaped body and an inner sleeve-shaped body mounted inside the outer sleeve-shaped body. A front end of the outer sleeve-shaped body is matched with a front end of the inner sleeve-shaped body through butting so that an inner air outlet inside the inner sleeve-shaped body correspondingly and an outer air outlet between the outer sleeve-shaped body and the inner sleeve-shaped body correspondingly are formed in a front end of the shell. The heating module is arranged between the outer sleeve-shaped body and the inner sleeve-shaped body. The rear end of the outer sleeve-shaped body is an air intake port, and a storage chamber is formed between the rear end of the outer sleeve-shaped body and the rear end of the inner sleeve-shaped body, with the outer sleeve-shaped body as a wall surface.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to the technical field of hair dryers, and more particularly to a double-air-passage heat-conducting structure and a hair dryer using the same. [Background technology]

[0002] A hair dryer is an electrical appliance used in cosmetic surgery for drying and styling hair, but it can also be used for local drying, heating, and physical therapy in laboratories, physical therapy rooms, industrial production, calligraphy, etc., and is also called a hair dryer or hair dryer. Conventional hair dryers generally use high-speed brushless motors to provide larger airflow and faster drying speeds, and some hair dryers have been equipped with smart constant temperature technology to automatically adjust the temperature to prevent hair damage caused by overheated air and better protect hair from damage. In addition to improving the airflow speed and temperature of hair dryers, many manufacturers have added negative ion functions to their hair dryers. Negative ion dryers emit negative ions, reduce static electricity, and make hair more flexible, which greatly contributes to improving hair quality.

[0003] However, while conventional hair dryers can automatically adjust the temperature, the uniformity of the temperature of the air blown out from the hair dryer is limited by the structure of the heating module and the air outlet. To make the temperature of the air more uniform, some hair dryers have introduced ceramic heating technology. Ceramic hair dryers use ceramic heating technology to make the temperature of the air more uniform and reduce damage to the scalp, but when blowing warm air from the air outlet, the temperature gradually increases from the edge of the air outlet to the center of the air outlet, causing localized temperatures to be too high. Especially in the case of high-speed hair dryers, this causes a large high-temperature shock to localized areas of the scalp, making it impossible to blow air onto a certain area of ​​the scalp for a long period of time when using the hair dryer. To solve this problem, the prior art has proposed a solution of providing an air-blocking structure at the center of the hair dryer's air outlet. However, the air-blocking structure affects the air blowing efficiency, so a new technical means is needed to solve this problem. Summary of the Invention [Problem to be solved by the invention]

[0004] SUMMARY OF THE INVENTION In order to overcome the above drawbacks, the present invention aims to provide a technical means capable of solving the above problems. [Means for solving the problem]

[0005] The heat conduction structure with a double air passage includes a housing, a heat generating module, and a blowing module, the housing having an external sleeve body and an internal sleeve body attached inside the external sleeve body, the front end of the external sleeve body and the front end of the internal sleeve body being fitted together so that the front end of the housing has an internal air outlet corresponding to the interior of the internal sleeve body and an external air outlet corresponding to the space between the external sleeve body and the internal sleeve body, the heat generating module is disposed between the external sleeve body and the internal sleeve body, the rear end of the external sleeve body is an air intake, and a storage chamber is formed between the rear end of the external sleeve body and the rear end of the internal sleeve body with the external sleeve body as its wall, the blowing module is attached inside the storage chamber, and a first fluid is formed within the housing by the blowing module, flowing along the air intake and then flowing out of the internal air outlet, and a second fluid is formed within the housing by the blowing module, flowing along the air intake, passing through the heat generating module, and then flowing out along the external air outlet.

[0006] Preferably, the internal sleeve body has a first sleeve portion at the rear end and a first flared portion that extends outward forming an arcuate surface along the front end of the first sleeve portion, and the internal air outlet is provided at one end of the internal sleeve body located at the first flared portion.

[0007] Preferably, the first flared portion has an inner wall provided with a plurality of uniformly distributed arcuate strips around its periphery.

[0008] Preferably, the outer sleeve body includes a second sleeve portion at a front end and a third sleeve portion provided at a rear end of the second sleeve portion, the diameter of the second sleeve portion being larger than the diameter of the third sleeve portion, a second flared portion being formed at the front end of the third sleeve portion and extending outward forming an inclined surface, and the third sleeve portion being connected to the second sleeve portion via the second flared portion.

[0009] Preferably, a locking structure is provided between the second flared portion and the second sleeve portion, and the second flared portion and the second sleeve portion are fixedly engaged with each other by the locking structure.

[0010] Preferably, a fixing groove is formed around the inside of the second flare portion, and a first air guide base is fixed and attached to the second flare portion by the fixing groove, and the first air guide base includes an outer edge portion that fits into the fixing groove, a fixing base located inside the outer edge portion, a plurality of first air guide plates that are formed around the fixing base and integrally connected to the outer edge portion, and a spacer ring that is formed between the fixing base and the outer edge portion and integrally connected to the first air guide plates, and the first air guide base is fixed within the second flare portion by engagement between the outer edge portion and the fixing groove, and the inner sleeve body is fixedly connected to the fixing base, and the spacer ring divides the second flare portion into two spaces, an inner space and an outer space, thereby corresponding to the inner sleeve body and the outer sleeve body, respectively.

[0011] Preferably, a plurality of second air guide plates are formed around the rear end of the inner sleeve body along the inside and toward the axis, and a connecting rod corresponding to the axis of the inner sleeve body is integrally formed with the second air guide plates at the rear end of the inner sleeve body, and the fixed base and the connecting rod form a threaded fitting structure, so that the inner sleeve body and the first air guide base are threadedly connected via the fixed base and the connecting rod.

[0012] Preferably, a second air guide base is fixedly attached along the inner side of the front end of the outer sleeve body, the outer sleeve body and the inner sleeve body are fixed and supported by the second air guide base, and the outer air outlet is provided on the second air guide base.

[0013] Preferably, a first insulating layer corresponding to the heat generating module is provided inside the outer sleeve body, and a second insulating layer corresponding to the heat generating module is provided outside the inner sleeve body.

[0014] Preferably, the heat-generating module includes at least one heat-generating film and heat-dissipating covers provided on both the inner and outer sides of the heat-generating film, and the surface of the heat-dissipating cover facing away from the heat-generating film has a fin-like structure. When multiple heat-generating films are provided, the multiple heat-generating films are arranged around the periphery from the inside to the outside, and two adjacent heat-generating films are engaged by the heat-dissipating cover, and the engaged heat-dissipating covers form a honeycomb-like heat-dissipating structure due to the fin-like structure.

[0015] The dryer uses any of the above-mentioned double air passage heat conduction structures. [Effects of the Invention]

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] By providing an inner sleeve body and an outer sleeve body so that the inside and outside are fitted together, a first fluid that can flow out along the inner air outlet and a second fluid that can flow out along the outer air outlet are formed. Both the first fluid and the second fluid are generated by the air blowing module. The first fluid does not pass through the heat-generating module, thereby achieving a low-temperature air blowing effect. The second fluid flows through the heat-generating module, is heated by the heat-generating module, and then achieves a high-temperature air blowing effect. When a structure in which low-temperature air is provided inside the high-temperature air blowing is applied to a hair dryer, when the hair dryer is operating, the high-temperature air blown out from the outer air outlet and the low-temperature air blown out from the inner air outlet mix, thereby lowering the air temperature in the middle, making the temperature of the air blown out along the air outlets of the hair dryer uniform, and preventing the user's scalp from being burned during use due to excessive heat concentration in the middle. In addition, when using an external air blowing and internal air blowing structure, the fluid generated by the air blowing module, which flows in along the air intake and then blows out from the air outlet, can be separated to heat the specified fluid. This method does not require a blocking structure to block the air blown out from the center of the dryer's air outlet, which can achieve higher air blowing efficiency and more uniform air temperature when applied to high-speed dryers, and allows the user to blow heated air to a certain area for a longer period of time without getting burned when using the dryer.

[0018] Additional aspects and advantages of the invention will be set forth in part in the description that follows, and in part will be obvious from the description, or may be learned by practice of the invention. [Brief explanation of the drawings]

[0019] In order to more clearly explain the embodiments of the present invention or the technical means of the prior art, the drawings necessary for explaining the embodiments or the prior art will be briefly described below. Obviously, the drawings described are only a part of the embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without requiring creative work.

[0020] [Figure 1]1 is a schematic diagram of the present invention. [Figure 2] FIG. 1 is an exploded schematic diagram of the present invention. [Figure 3] 1 is a cross-sectional schematic diagram of the present invention. [Figure 4] 1 is a schematic diagram of a fluid according to the present invention. [Figure 5] 1 is a schematic diagram of an inner sleeve body according to the present invention; [Figure 6] FIG. 2 is a schematic diagram of a front end face of the present invention. [Figure 7] FIG. 2 is a schematic diagram illustrating the configuration of a first air guide base according to the present invention. [Figure 8] 1 is a schematic diagram of a heat generating module according to the present invention; DETAILED DESCRIPTION OF THE INVENTION

[0021] The technical means in the embodiments of the present invention will be described below clearly and completely, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of them, and all other embodiments that can be obtained by those skilled in the art based on the embodiments of the present invention without any creative work are all within the scope of protection of the present invention.

[0022] As shown in FIGS. 1 to 8 , in an embodiment of the present invention, the heat conduction structure with a double air passage includes a housing 10, a heat generating module 20, and a blower module 30, the housing 10 has an outer sleeve body 11 and an inner sleeve body 12 attached inside the outer sleeve body 11, the front end of the outer sleeve body 11 and the front end of the inner sleeve body 12 are fitted together so that the front end of the housing 10 has an inner air outlet 13 corresponding to the inside of the inner sleeve body 12 and an outer air outlet 14 corresponding to the space between the outer sleeve body 11 and the inner sleeve body 12, and the heat generating module 20 is provided between the outer sleeve body 11 and the inner sleeve body 12, The rear end of the external sleeve body 11 is an air intake port 15, and between the rear end of the external sleeve body 11 and the rear end of the internal sleeve body 12, a storage chamber 16 is formed with the external sleeve body 11 as a wall surface, and the blower module 30 is attached within the storage chamber 16, and a first fluid 17 is formed within the housing 10 by the blower module 30, which flows in along the air intake port 15 and then flows out from the internal outlet 13, and a second fluid 18 is formed within the housing 10 by the blower module 30, which flows in along the air intake port 15, passes through the heat-generating module 20, and then flows out along the external outlet 14.

[0023] In the above technical means, an inner sleeve body 12 and an outer sleeve body 11 are provided so that the inside and outside are fitted together to form a first fluid 17 that can flow along the inner air outlet 13 and a second fluid 18 that can flow along the outer air outlet 14. The first fluid 17 and the second fluid 18 are both generated by the air blowing module 30. The first fluid 17 does not pass through the heat-generating module 20, thereby achieving a low-temperature air blowing effect. The second fluid 18 flows through the heat-generating module 20, is heated by the heat-generating module 20, and then achieves a high-temperature air blowing effect. When a structure in which low-temperature air is provided inside the high-temperature air blowing structure is applied to a hair dryer, when the hair dryer is in operation, the high-temperature air blown out from the outer air outlet 14 and the low-temperature air blown out from the inner air outlet 13 mix, thereby lowering the air temperature in the center, making the temperature of the air blown along the air outlets of the hair dryer uniform and preventing excessive heat concentration in the center from causing burns to the user's scalp during use. In addition, when using an external air blowing and internal air blowing structure, the fluid generated by the air blowing module 30, which flows in along the air intake 15 and then is blown out from the air outlet, can be separated to heat the specified fluid. This method does not require a blocking structure to block the air blown out from the center of the dryer's air outlet, which can achieve higher air blowing efficiency and more uniform air temperature when applied to high-speed dryers, and allows the user to blow heated air to a certain area for a longer period of time without getting burned when using the dryer.

[0024] As shown in FIGS. 2 to 4, in this embodiment, in order to improve the air blowing effect of the dryer, ensure that the fluid generated by the air blowing module 30 flows more through the heat generating module 20, and achieve a high-speed blowing effect on the fluid in this portion, the inner sleeve body 12 is provided to have a first sleeve portion 121 at the rear end and a first flared portion 122 that extends outward and forms an arc surface along the front end of the first sleeve portion 121, and the inner air outlet 13 is provided at one end of the inner sleeve body 12 located at the first flared portion 122. The provision of the first sleeve portion 121 and the first flared portion 122 reduces the flow rate of the first fluid 17 and serves to concentrate the second fluid 18 when it flows out of the outer outlet 14, ensuring that the flow rate of the second fluid 18 is much faster than that of the first fluid 17. When the first fluid 17 flows out along the inner outlet 13, it mainly serves to cool the central portion of the second fluid 18 and cannot directly act on the user's hair. Otherwise, the central portion of the fluid would not achieve the high-temperature drying effect. Therefore, the fluid that ultimately acts on the user's scalp is partly the outer peripheral portion of the second fluid 18, and the other part is the inner peripheral portion of the second fluid 18 that has been cooled by the first fluid 17. This structural design allows for more effective control of the airflow effect, making it easier to achieve the desired temperature uniformity. In addition, the inner wall of the first flared portion 122 is provided with a plurality of uniformly distributed arc-shaped strips 123 around it, which achieves the effect of causing the first fluid 17 to spiral outward, thereby allowing the first fluid 17 to better interact with the second fluid 18.

[0025] As shown in Figures 2 and 3, in this embodiment, the outer sleeve body 11 includes a second sleeve portion 111 at the front end and a third sleeve portion 112 provided at the rear end of the second sleeve portion 111. The diameter of the second sleeve portion 111 is larger than the diameter of the third sleeve portion 112. The front end of the third sleeve portion 112 is formed with a second flared portion 113 that extends outward and forms an inclined surface. The third sleeve portion 112 is connected to the second sleeve portion 111 via the second flared portion 113. This configuration makes the overall structural assembly more flexible. A locking structure 114 is provided between the second flared portion 113 and the second sleeve portion 111. The second flared portion 113 and the second sleeve portion 111 are engaged and fixed by the locking structure 114, making assembly easier.

[0026] As shown in FIGS. 2, 3, 5 and 7, in this embodiment, a fixing groove 115 is provided around the inside of the second flare portion 113, and a first air guide base 40 is fixed and attached to the second flare portion 113 by the fixing groove 115. The first air guide base 40 includes an outer edge portion 41 that fits into the fixing groove 115, a fixing base 42 located inside the outer edge portion 41, a plurality of first air guide plates 43 that are provided around the fixing base 42 and are integrally connected to the outer edge portion 41, and a fixing base 42. The first air guide base 40 includes a spacer ring 44 disposed between the base 42 and the outer edge portion 41 and integrally connected to the first air guide plate 43, the first air guide base 40 being fixed within the second flared portion 113 by engagement between the outer edge portion 41 and the fixing groove 115, the inner sleeve body 12 being fixedly connected to the fixing base 42, and the spacer ring 44 dividing the second flared portion 113 into two spaces, an inner space and an outer space, corresponding to the inner sleeve body 12 and the outer sleeve body 11, respectively. The provision of the first air guide base 40 ensures a strong connection between the outer sleeve body 11 and the inner sleeve body 12. Specifically, a plurality of second air guide plates 124 are formed around the rear end of the inner sleeve body 12, extending along the inside and facing the axis. A connecting rod 125 corresponding to the axis of the inner sleeve body 12 is integrally formed with the second air guide plate 124 at the rear end of the inner sleeve body 12. The fixed base 42 and the connecting rod 125 form a screw-fit structure, so that the inner sleeve body 12 and the first air guide base 40 are screw-connected via the fixed base 42 and the connecting rod 125.

[0027] As shown in Figures 1 to 3, in this embodiment, a second air guide base 50 is fixedly attached along the inside of the front end of the external sleeve body 11, the external sleeve body 11 and the internal sleeve body 12 are fixed and supported by the second air guide base 50, and the external air outlet 14 is provided on the second air guide base 50, thereby making the fit between the external sleeve body 11 and the internal sleeve body 12 more firm and reliable and ensuring the air blowing effect between the external sleeve body 11 and the internal sleeve body 12.

[0028] 2 and 3, in this embodiment, a first insulating layer 60 corresponding to the heat-generating module 20 is provided inside the outer sleeve body 11, and a second insulating layer 70 corresponding to the heat-generating module 20 is provided outside the inner sleeve body 12, thereby preventing heat generated from the heat-generating module 20 from being dissipated to the outside along the housing 10. In order to generate a high heat generation effect and fully meet the purpose of providing the first fluid 17 and the second fluid 18, as shown in FIGS. 3 and 8, the heat-generating module 20 includes at least one heat-generating film 21 and heat-dissipating covers 22 provided on both the inner and outer sides of the heat-generating film 21, respectively. The surface of the heat-dissipating cover 22 facing away from the heat-generating film 21 has a fin-like structure. When multiple heat-generating films 21 are provided, the multiple heat-generating films 21 are arranged circumferentially from the inside to the outside, and two adjacent heat-generating films 21 are engaged with each other by the heat-dissipating cover 22. The engaged heat-dissipating covers 22 form a honeycomb-like heat-dissipating structure due to the fin-like structure.

[0029] It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be realized in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, in all respects, the embodiments should be regarded as illustrative and not limiting, and the scope of protection of the present invention is limited by the appended claims, and not limited to the above description, and all changes within the meaning and scope of the equivalents of the claims are intended to be included in the present invention. [Explanation of symbols]

[0030] 10. Housing 11 outer sleeve body 111 Second sleeve part 112 Third sleeve section 113 Second Flare Section 114 Locking structure 115 Fixed groove 12 Inner sleeve body 121 First sleeve part 122 First Flare Section 123 Arc Strip 124 Second air guide plate 125 connecting rod 13 Inner air outlet 14 External air outlet 15 Air intake 16 Containment Room 17 First fluid 18 Second fluid 20 Heating Module 21 Heating membrane 22 Heat dissipation cover 30 Blower Module 40 First air guide base 41 outer edge 42 Fixed base 43 First air guide plate 44 Spacer ring 50 Second air guide base 60 First insulation layer 70 Second insulation layer

Claims

1. a housing, a heat generating module, and a blower module; the housing has an outer sleeve body and an inner sleeve body attached inside the outer sleeve body; a front end of the outer sleeve body and a front end of the inner sleeve body are fitted together so that a front end of the housing has an inner air outlet corresponding to the interior of the inner sleeve body and an outer air outlet corresponding to a space between the outer sleeve body and the inner sleeve body; the heat generating module is disposed between the outer sleeve body and the inner sleeve body, The rear end of the outer sleeve body is an intake port, a receiving chamber is formed between the rear end of the outer sleeve body and the rear end of the inner sleeve body, the receiving chamber having the outer sleeve body as a wall surface; The air blowing module is attached to the accommodation chamber, a first fluid is formed in the housing by the blower module, the first fluid flows along the intake port and then flows out through the internal outlet; A second fluid is formed in the housing by the air blowing module, flows along the air intake port, passes through the heat generating module, and then flows out along the external air outlet. A heat conduction structure with dual air passages.

2. The inner sleeve body has a first sleeve portion at a rear end and a first flared portion extending outward along a front end of the first sleeve portion and forming an arcuate surface, The inner air outlet is provided at one end of the inner sleeve body located at the first flared portion.

2. The heat conduction structure with double air passages according to claim 1.

3. a plurality of arc-shaped strips are uniformly distributed around the inner wall of the first flared portion; 3. The heat conduction structure with double air passages according to claim 2.

4. the outer sleeve body includes a second sleeve portion at a front end thereof and a third sleeve portion provided at a rear end thereof; The diameter of the second sleeve portion is larger than the diameter of the third sleeve portion, A second flared portion is formed at a front end of the third sleeve portion, the second flared portion forming an inclined surface and extending outward, the third sleeve portion is connected to the second sleeve portion via the second flared portion; 2. The heat conduction structure with double air passages according to claim 1.

5. a locking structure is provided between the second flared portion and the second sleeve portion; the second flared portion and the second sleeve portion are engaged and fixed by the engaging structure; 5. The heat conduction structure with double air passages according to claim 4.

6. A fixing groove is formed around the inside of the second flare portion, a first air guide base is fixed and attached to the second flare portion by the fixing groove; the first air guide base includes an outer edge portion that fits into the fixing groove, a fixing base located inside the outer edge portion, a plurality of first air guide plates that are circumferentially disposed around the fixing base and integrally connected to the outer edge portion, and a spacer ring that is circumferentially disposed between the fixing base and the outer edge portion and integrally connected to the first air guide plates, the first air guide base is fixed in the second flare portion by engagement between the outer edge portion and the fixing groove; the inner sleeve body is fixedly connected to the fixed base; The spacer ring divides the second flared portion into two spaces, an inner space and an outer space, which correspond to the inner sleeve body and the outer sleeve body, respectively.

5. The heat conduction structure with double air passages according to claim 4.

7. A plurality of second air guide plates are formed around the rear end of the inner sleeve body along the inside and toward the axis, a connecting rod is integrally formed at the rear end of the inner sleeve body by the second air guide plate, the connecting rod corresponding to the axis of the inner sleeve body; The fixed base and the connecting rod form a screw-fitting structure, so that the inner sleeve body and the first air guide base are screw-connected via the fixed base and the connecting rod.

7. The heat conduction structure with double air passages according to claim 6.

8. A second air guide base is fixedly attached to the front end of the outer sleeve body along the inner side thereof, the outer sleeve body and the inner sleeve body are fixed and supported by the second air guide base; The external air outlet is provided in the second air guide base.

7. The heat conduction structure with double air passages according to claim 6.

9. a first insulating layer corresponding to the heat generating module is provided inside the outer sleeve body; A second insulating layer corresponding to the heat generating module is provided on the outside of the inner sleeve body.

2. The heat conduction structure with double air passages according to claim 1.

10. The heat generating module includes at least one heat generating film and heat dissipation covers respectively provided on the inner and outer sides of the heat generating film, The surface of the heat dissipation cover facing the heat generating film has a fin-like structure, When a plurality of the heat generating films are provided, the plurality of heat generating films are provided from the inside to the outside, and two adjacent heat generating films are engaged with each other by the heat dissipation cover, and the engaged heat dissipation cover forms a heat dissipation structure having a honeycomb shape due to the fin-like structure.

10. The heat conduction structure with dual air passages according to claim 9.

11. The double air passage heat conduction structure according to any one of claims 1 to 10 is used. A dryer characterized by:

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