Double-air-inlet shell of hair drier

Abstract

The utility model discloses a double-air-inlet shell of a hair drier, which comprises a shell and a fan, the shell comprises a first shell, and the fan is arranged in the first shell; the shell is provided with a first air duct and a second air duct; and the switch module and the first gap are not overlapped with each other when projected in the vertical direction. According to the utility model, the first circulation passage is arranged in the second shell, so that the second air duct can enter from the second shell, then flows to the first gap through the first circulation passage, and finally converges with the first air duct to be input into the fan, thereby forming a double-air-duct air inlet operation mode. And only the first circulating passage in the second shell vertically corresponds to the first gap, and the air supply effect of the first circulating passage is prevented from being affected by partition arrangement.

Description

TECHNICAL FIELD

[0001] The utility model belongs to hair dryer technical field, concretely relates to a hair dryer double air inlet shell. BACKGROUND

[0002] Hair dryer is a kind of equipment that the fluid of outside is driven by motor and exports, it is often used in daily hair drying scene etc.;Among them, hair dryer includes shell, fan set in the shell, the air of outside is inhaled by the rotation of fan, and exports in the case of limiting path by air outlet;In prior art, since its air inlet end only passes through single path air inlet hole to air intake, its air volume cannot meet the demand of large air volume. CONTENT OF UTILITY MODEL

[0003] The utility model discloses a hair dryer double air inlet shell to solve the above technical problem, set first flow passage in second shell, make second air duct can enter from second shell, then pass through first flow passage and circulate to first gap, finally meet first air duct and input fan, to form the operation mode of double air duct air intake.Only first flow passage is set in vertical correspondence first gap in second shell, and is set in partition, to avoid affecting the air supply effect of first flow passage.

[0004] To realize the above-mentioned utility model purposes, the technical scheme adopted by the utility model is as follows:

[0005] A kind of hair dryer double air inlet shell, including shell, fan fixedly set in the shell, the shell includes first shell, and the fan is set in the first shell;The shell is provided with first air duct and second air duct in communication;

[0006] The first air duct is provided from the fan air inlet to the fan;The second air duct includes the first gap between the fan and the first shell, and the first gap is in communication with the fan air inlet.The first air duct and the second air duct are provided in the shell in communication, wherein the second air duct includes the first gap between the fan and the first shell, so that the hair dryer operation has two air ducts for air supply, and the fluid is cooled synchronously through the fan outer edge during the air supply process, so that the fan has better heat dissipation.

[0007] Preferably, the fan includes a fan body, a connecting shell is sleeved around the fan body, and the first gap is provided between the connecting shell and the first shell. The first gap is horizontally arranged. The connecting shell is sleeved around the fan body and fixed in the first shell, so that the fan body has better stability and avoids the problem of overall rotation during the operation of the fan. The first gap between the connecting shell and the first shell provides a space for the flow of the second air duct, and the fan body is cooled during the flow of the fluid, thereby cooling the fan, so that the fan has good heat dissipation performance.

[0008] Preferably, the connecting shell is coaxially arranged in the first shell, and one or more flow-through grooves are arranged through the connecting shell and communicate with the first gap. During the flow of the fluid in the first gap, the fluid can flow into the flow-through grooves and contact the fan body due to the through arrangement of the flow-through grooves, so as to heat exchange the fan body and improve the heat exchange effect of the fan. Meanwhile, the flow direction of the fluid is guided by the flow-through grooves.

[0009] Preferably, a fourth gap is arranged between the fan body and the connecting shell and communicates with the flow-through grooves and the first gap. The fourth gap is arranged to make more fluid flow from the flow-through grooves to the space between the fan body and the connecting shell, so as to improve the heat exchange effect of the fan.

[0010] Preferably, one or more abutting points are arranged on the outer periphery of the fan body and abut against the inner surface of the connecting shell, and the abutting points are arranged in the fourth gap. The abutting points provide a fulcrum for the fourth gap between the connecting shell and the fan body, and fix the fan body in the connecting shell, so as to prevent the fan body from rotating in the connecting shell.

[0011] Preferably, the abutting points are semispherical.

[0012] Preferably, an abutting block is arranged at one end of the connecting shell, and an abutting end of the fan body is arranged at the air inlet and abuts against the abutting block to limit the position. The fan is prevented from being separated from the end of the connecting shell to the outside.

[0013] Preferably, a first air inlet module is connected to the end of the connecting shell close to the air inlet of the fan, the first air inlet module is partially embedded in the first shell, the first air inlet module is coaxially arranged with the fan, and the first air inlet module communicates with the air inlet of the fan and the first gap. The first air inlet module is embedded in the first shell to provide an air inlet module for the first air duct, and the first air inlet module communicates with the first gap, so that the output end of the first air inlet module communicates with the output end of the first gap.

[0014] Preferably, the shell further comprises a second shell vertically arranged below the first shell and communicating with the first shell; and the second air duct further comprises a first flow-through duct communicating with the first gap, and the first flow-through duct is arranged along the arrangement direction of the second shell. The first flow-through duct is arranged in the second shell, so that the second air duct can enter from the second shell, then flow through the first flow-through duct to the first gap, and finally combine with the first air duct to input into the fan, thereby forming a double-air-duct air inlet operation mode.

[0015] Preferably, the connecting shell is sleeved with a sealing ring, and an outer periphery of the sealing ring is in abutment with an inner surface of the first shell, and the first shell, the sealing ring and the connecting shell are sequentially arranged from outside to inside. The sealing ring is arranged on the outer periphery of the connecting shell, and the sealing ring is in abutment with the inner surface of the first shell, so that the problem of following movement of the connecting shell during operation of the fan is avoided. Meanwhile, the sealing ring is arranged at the position of the second air duct opposite the air outlet of the fan, so that the problem of flow leakage is avoided, and the operation stability of the electric hair dryer is improved.

[0016] Preferably, the sealing ring is arranged at one end away from the air inlet of the fan. The sealing ring is arranged at only one end close to the air outlet of the fan.

[0017] Preferably, the connecting shell is provided with a connecting groove embedded with the sealing ring. The connecting position of the sealing ring is more stable, and the problems of shaking and displacement of the sealing ring are avoided.

[0018] Preferably, the sealing ring is arranged at a position overlapping the first flow passage in a vertical projection. The air inlet of the first flow passage in the vertical direction is directly introduced into the air outlet of the fan, so that the problem of flow leakage is avoided.

[0019] Preferably, in a vertical projection, the fan and the first flow passage partially overlap. When the fluid is introduced into the first flow passage, it can be directly introduced into the first gap, heat exchange of the fan is completed, and the fluid is transmitted to the first air duct for flow convergence.

[0020] Preferably, the second shell is provided with a switch module on one side of the first flow passage. The operation mode of the fan is controlled.

[0021] Preferably, in a vertical projection, the switch module and the first gap do not overlap each other. Only the first flow passage arranged in the second shell vertically corresponds to the first gap, and the first flow passage is arranged in a partitioned manner, so that the air supply effect of the first flow passage is not affected.

[0022] Preferably, the switch module comprises a first frame arranged in the second shell and connected with the first shell, and a switch button arranged in the first frame and extending to the outside. The switch button, the first frame and the first flow passage are sequentially arranged. In a vertical projection, the first frame and the first gap do not overlap each other. Only the first flow passage arranged in the second shell vertically corresponds to the first gap, and the first flow passage is arranged in a partitioned manner, so that the air supply effect of the first flow passage is not affected.

[0023] Preferably, a circuit board is fixedly arranged in the first flow passage. The circuit board is cooled and heat-dissipated during the fluid transmission in the first flow passage.

[0024] Preferably, the circuit board is arranged along the arrangement direction of the first flow passage. The circuit board is cooled and heat-dissipated during the fluid flow.

[0025] Preferably, a heat conducting plate in contact with the air flow in the first flow passage is provided on the circuit board. The heat conducting plate is provided, and the heat conducting plate is a copper sheet, so that the fluid contacts the copper sheet during the fluid flow to exchange heat, thereby improving the heat exchange efficiency.

[0026] Preferably, the heat conducting plate includes a connection end connected to the circuit board and a fitting end connected to the connection end, and both ends of the fitting end are respectively abutted against the components of the circuit board and the air flow in the second flow channel. The cross-section of the heat conducting plate along the air flow conveying direction is in a "冂" shape, which is convenient for fitting the components of the circuit board to improve the heat exchange effect.

[0027] Preferably, the circuit board is connected with a cable, and the cable penetrates through the first flow passage and penetrates through the first housing at one end far from the air inlet of the fan along the first gap. Setting it in the reverse direction can avoid affecting the air flow flowing from the first flow passage to the first gap.

[0028] Preferably, the connection housing is provided with a through hole for providing a space for the cable to penetrate through. The through hole is provided on the side of the sealing ring far from the first gap, avoiding the problem of air flow short-circuiting when directly facing the first flow passage from the air outlet of the fan. The connection line with the end of the first flow passage has a certain inclination. Even if part of the air flow flows out through the through hole, it is far from the air outlet of the fan, thus avoiding the problem of short-circuiting. At the same time, the cable penetrates through the through hole and fills the space, which can effectively reduce the amount of air flow passing through.

[0029] Preferably, in the vertical projection, the positions where the cable penetrates through the first housing, the position where the sealing ring is arranged, and the position where the first gap is arranged do not overlap each other. The positions where the cable penetrates through the first housing, the position where the sealing ring is arranged, and the position where the first gap is arranged are arranged in sequence. This can avoid the problem of air flow short-circuiting where the fluid conveyed by the first flow passage directly blows the air at the fan outlet.

[0030] Preferably, the cable is arranged on one side of the first frame.

[0031] This application has achieved beneficial technical effects:

[0032] In the present utility model, a first flow passage is arranged in the second housing, so that the second air duct can enter from the second housing, then flow through the first flow passage to the first gap, and finally converge with the first air duct and be input into the fan, thereby forming a dual-air-duct air intake operation mode. Only the position where the first flow passage is arranged in the second housing is vertically corresponding to the first gap, and it is partitioned to avoid affecting the air supply effect of the first flow passage. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 The following shows the structural schematic diagram of the present utility model;

[0034] Figure 2The diagram shown is another schematic representation of the structure of this utility model;

[0035] Figure 3 As shown Figure 2 A schematic diagram of the AA-direction cross-section structure;

[0036] Figure 4 As shown Figure 2 Schematic diagram of the DD-direction cross-section structure;

[0037] Figure 5 As shown Figure 2 A schematic diagram of the EE cross-sectional structure;

[0038] Figure 6 As shown Figure 1 Schematic diagram of the CC-direction cross-section structure;

[0039] Figure 7 The image shown is one of the exploded structural diagrams of this utility model;

[0040] Figure 8 The second diagram shows the exploded structure of this utility model;

[0041] Figure 9 As shown Figure 3 A partially enlarged structural diagram;

[0042] Figure 10 As shown Figure 1 A partial schematic diagram of the GG-direction cross-sectional structure. Detailed Implementation

[0043] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0044] The technical solution of this utility model will be described in detail below with specific embodiments.

[0045] Reference Figures 1 to 10 A dual-inlet housing for a hair dryer includes a housing and a fan 3 fixedly disposed within the housing. The housing includes a first housing 1, and the fan 3 is disposed within the first housing 1. The housing is provided with a first air duct and a second air duct that are connected to each other.

[0046] The first air duct is arranged from the air inlet of the fan 3 to the fan; the second air duct comprises a first gap 30 arranged between the fan 3 and the first shell 1, and the first gap 30 is in communication with the air inlet of the fan 3. The first air duct and the second air duct are arranged in the shell and are in communication, wherein the second air duct comprises the first gap 30 arranged between the fan 3 and the first shell 1, so that the two air ducts can be used for air supply during the operation of the hair dryer, and the fluid is synchronously cooled through the outer edge of the fan during the air supply process, so that the fan has better cooling performance.

[0047] The fan 3 comprises a fan body 31 and a connecting shell 32 sleeved on the outer periphery of the fan body 31, and the connecting shell 32 is arranged with the first gap 30 between the connecting shell 32 and the first shell 1. The connecting shell 32 is fixedly connected with the first shell 1, wherein the first shell 1 is provided with a first screw column 118, and the connecting shell 32 is provided with a second screw column 328 arranged on the same axis as the first screw column 118, and the first screw column 118 and the second screw column 328 are connected by screws, so that the connecting shell 32 is fixedly connected with the first shell 1. The first gap 30 is arranged horizontally. The outer periphery of the fan body 31 is sleeved with the connecting shell 32 and fixed in the first shell 1, so that the fan body 31 has better stability and avoids the problem of overall rotation during the operation of the fan. The first gap 30 arranged between the connecting shell 32 and the first shell 1 provides a space for the flow of the second air duct, and the fan body is cooled during the flow of the fluid, so that the fan is cooled and has good cooling performance.

[0048] The connecting shell 32 is coaxially arranged in the first shell 1, and the connecting shell 32 is arranged with one or more flow grooves 321, and the flow grooves 321 are in communication with the first gap 30. During the flow of the fluid in the first gap 30, the flow grooves 321 are in a penetrating state, and the fluid can flow into the flow grooves 321 and contact the outer periphery of the fan body 31, so as to cool the fan body 31 and improve the heat exchange effect of the fan. Meanwhile, the flow grooves 321 guide the flow direction of the fluid.

[0049] The fourth gap 33 is arranged between the fan body 31 and the connecting shell 32, and the fourth gap 33 is in communication with the flow grooves 321 and the first gap 30. The fourth gap 33 is arranged to make more fluid flow from the flow grooves 321 to the space between the fan body 31 and the connecting shell 32, so that the heat exchange effect of the fan is better.

[0050] The fan body 31 is provided with one or more abutting points 311 on the outer periphery, which abut against the inner surface of the connecting shell 32, and the abutting points 311 are arranged in the fourth gap 33. The abutting points 311 are arranged to provide a fulcrum for the fourth gap 33 between the connecting shell 32 and the fan body 31, and to fix the fan body 31 in the connecting shell 32, so as to avoid the whole fan body 31 from rotating in the connecting shell. Preferably, a rubber sleeve is arranged on the outer periphery of the fan body 31, and the abutting points 311 are arranged on the rubber sleeve. The rubber sleeve plays a role of shock absorption and noise reduction.

[0051] The abutting points 311 are semispherical.

[0052] The connecting shell 32 is provided with an abutting block 322 at one end, and the fan body 31 is provided with an abutting end 312 at the air inlet, which abuts against the abutting block 322 to limit the position. This avoids the fan from being pulled out of the end of the connecting shell 32 to the outside.

[0053] The connecting shell 32 is connected to the first air inlet module 4 at one end close to the air inlet of the fan 3. The first air inlet module 4 is partially embedded in the first shell 1, and the first air inlet module 4 is coaxially arranged with the fan 3. The first air inlet module 4 is in communication with the air inlet of the fan 3 and the first gap 30. The first air inlet module 4 is arranged in the first shell 1 to provide an air inlet for the first air duct. The first air inlet module is in communication with the first gap 30, so that the output end of the first air inlet module is in communication with the output end of the first gap 30.

[0054] The shell further comprises a second shell 2 vertically arranged below the first shell 1 and in communication with the first shell 1. The second air duct further comprises a first flow passage 20 in communication with the first gap 30, and the first flow passage 20 is arranged along the arrangement direction of the second shell 2. The first flow passage 20 is arranged in the second shell 2, so that the second air duct can enter from the second shell 2, then flow through the first flow passage 20 to the first gap 30, and finally combine with the first air duct to input into the fan, thereby forming a double air duct air inlet operation mode.

[0055] The connecting shell 32 is provided with a sealing ring 34 on the outer periphery, and the outer periphery of the sealing ring 34 abuts against the inner surface of the first shell 1. The first shell 1, the sealing ring 34, and the connecting shell 32 are arranged from outside to inside. The connecting shell 32 is provided with the sealing ring 34 on the outer periphery, which abuts against the inner surface of the first shell 1, so as to avoid the problem of following movement of the connecting shell 34 during the operation of the fan. At the same time, the sealing ring 34 is arranged at the air outlet of the fan, so as to avoid the problem of cross flow and improve the operation stability of the electric hair dryer.

[0056] The sealing ring 34 is arranged at the end away from the air inlet of the fan 3. The sealing ring 34 is only arranged at the end close to the air outlet of the fan.

[0057] The connecting shell 32 is provided with a connecting groove 325 embedded with the sealing ring 34. The connecting position of the sealing ring 34 is more stable, and the problem of shaking and displacement of the sealing ring 34 is avoided.

[0058] The sealing ring 34 is arranged to overlap the first flow passage 20 in the vertical direction. The vertical air inlet of the first flow passage 20 is avoided from directly entering the fan outlet, thereby avoiding the problem of air leakage.

[0059] In the vertical direction, the fan 3 partially overlaps the first flow passage 20. When the fluid enters the first flow passage 20, it can directly enter the first gap 30, complete heat exchange of the fan, and be transmitted to the first air duct.

[0060] The second shell 2 is provided with a switch module 21 on one side of the first flow passage 20. The operation mode of the fan is controlled.

[0061] In the vertical direction, the switch module 21 and the first gap 30 do not overlap each other. The first flow passage 20 in the second shell 2 is vertically corresponding to the first gap 30, and is partitioned and arranged, so as to avoid affecting the air supply effect of the first flow passage 20.

[0062] The switch module 21 includes a first frame 211 arranged in the second shell 2 and connected with the first shell 1, and a switch button 212 arranged in the first frame 211 and extending to the outside. The switch button 212, the first frame 211, and the first flow passage 20 are arranged in sequence. In the vertical direction, the first frame 211 and the first gap 30 do not overlap each other. The first flow passage 20 in the second shell 2 is vertically corresponding to the first gap 30, and is partitioned and arranged, so as to avoid affecting the air supply effect of the first flow passage 20.

[0063] The circuit board 22 is fixedly arranged in the first flow passage 20. The circuit board 22 is cooled and heat-dissipated during the fluid conveying process in the first flow passage 20.

[0064] The circuit board 22 is arranged along the arrangement direction of the first flow passage 20. The circuit board 22 is heat-dissipated during the fluid flow process.

[0065] The circuit board 22 is provided with a heat-conducting plate 221 in contact with the air flow of the first flow passage 20. The heat-conducting plate 221 is a copper sheet, so that the fluid flows in contact with the copper sheet during the fluid flow process, thereby heat-exchanging and improving the heat exchange efficiency.

[0066] The heat-conducting plate 221 includes a connecting end 2211 connected to the circuit board and a bonding end 2212 connected to the connecting end 2211. The two ends of the bonding end 2212 respectively abut against the components of the circuit board 22 and the airflow of the second flow channel 20. The cross-section of the heat-conducting plate 221 along the airflow direction is "U" shaped, which facilitates bonding with the components of the circuit board 22 and thus improves the heat exchange effect.

[0067] The circuit board 22 is connected to a cable 23, which passes through the first flow channel 20 and extends along the first gap 30 away from the air inlet of the fan 3, passing through the first housing 1. The cable 23 is positioned in the opposite direction to avoid affecting the airflow from the first flow channel 20 to the first gap 30.

[0068] The connecting housing 32 is provided with a through-hole 326 for the cable 23 to pass through. The through-hole 326 is located on the side of the sealing ring 34 away from the first gap 30 to prevent crossflow from occurring when the air outlet of the fan is directly facing the first flow channel 20. The line connecting the through-hole 326 to the end of the first flow channel 20 has a certain inclination, so even if some airflow flows out through the through-hole 326, it is far away from the air outlet of the fan, thus avoiding crossflow. At the same time, the cable 23 passes through the through-hole 326 and fills the space, which can effectively reduce the amount of airflow passing through.

[0069] In vertical projection, the points where the cable 23 passes through the first housing 1, the sealing ring 34, and the first gap 30 do not overlap. The cable 23 is sequentially positioned at these points. This avoids the problem of fluid transported by the first flow channel 20 directly blowing onto the fan outlet.

[0070] The cable 23 is disposed on one side of the first frame 211.

[0071] The fan is coaxially disposed within the first housing; the first housing and the second housing are disposed perpendicular to each other.

[0072] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0073] The above-described embodiments only express several implementation manners of the utility model, the description is more specific and detailed, but can not therefore be understood as the limitation of the utility model patent range. It should be pointed out that for ordinary skilled person in the art, under the premise of not departing from the utility model concept, several modifications and improvements can be made, which all belong to the protection range of the utility model. Therefore, the protection range of the utility model patent should be subject to the appended claims.

[0074] The above describes in detail the embodiment of the double air inlet shell of the hair dryer provided by the utility model. The principle and implementation manner of the utility model are described by applying specific examples in this paper, and the above embodiment description is only used to help understand the core idea of the utility model. It should be pointed out that for ordinary skilled person in the art, under the premise of not departing from the principle of the utility model, several improvements and modifications can be made to the utility model, and these improvements and modifications also fall within the protection range of the claims of the utility model.

Claims

1. A dual-inlet housing for a hair dryer, comprising a housing and a fan (3) fixedly disposed within the housing, characterized in that, The housing includes a first housing (1), and the fan (3) is disposed inside the first housing (1); the housing is provided with a first air duct and a second air duct that are connected to each other; The first air duct is set through the air inlet of the fan (3); the second air duct includes a first gap (30) between the fan (3) and the first housing (1), and the first gap (30) is connected to the air inlet of the fan (3); The housing also includes a second housing (2) that is vertically disposed below and connected to the first housing (1); the second air duct also includes a first flow passage (20) that is connected to the first gap (30), and the first flow passage (20) is disposed along the direction of the second housing (2); The second housing (2) has a switch module (21) on one side of the first flow passage (20).

2. The hair dryer with dual air inlet housing according to claim 1, characterized in that, The fan (3) includes a fan body (31) and a connecting shell (32) sleeved on the outer periphery of the fan body (31). A first gap (30) is provided between the connecting shell (32) and the first shell (1).

3. The hair dryer with dual air inlet housing according to claim 2, characterized in that, The connecting housing (32) is coaxially disposed inside the first housing (1), and one or more flow channels (321) are provided through the connecting housing (32), and the flow channels (321) are connected to the first gap (30).

4. The dual-inlet housing of the hair dryer according to claim 1, characterized in that, The switch module (21) includes a first frame (211) disposed in the second housing (2) and connected to the first housing (1), and a switch button (212) disposed in the first frame (211) and extending to the outside. The switch button (212), the first frame (211), and the first flow channel (20) are arranged in sequence.

5. The dual-inlet housing of the hair dryer according to claim 4, characterized in that, A circuit board (22) is fixedly installed inside the first flow channel (20).

6. The dual-inlet housing of the hair dryer according to claim 5, characterized in that, A heat-conducting plate (221) is provided on the circuit board (22) to contact the airflow of the first flow channel (20).

7. The dual-inlet housing of the hair dryer according to claim 6, characterized in that, The circuit board (22) is connected to a cable (23), which passes through the first flow passage (20) and passes through the first housing (1) at one end away from the air inlet of the fan (3) along the first gap (30).

8. The dual-inlet housing of the hair dryer according to claim 7, characterized in that, The connecting housing (32) is provided with a through-hole (326) through which the cable (23) passes through the space.

9. The dual-inlet housing of the hair dryer according to claim 8, characterized in that, The outer periphery of the connecting housing (32) is fitted with a sealing ring (34), and the outer periphery of the sealing ring (34) abuts against the inner surface of the first housing (1). The first housing (1), the sealing ring (34), and the connecting housing (32) are arranged sequentially from the outside to the inside. In vertical projection, the cable (23) does not overlap at the point where it passes through the first housing (1), the point where the sealing ring (34) is set, and the point where the first gap (30) is set.

10. The hair dryer with dual air inlet housing according to claim 7, characterized in that, The cable (23) is located on one side of the first frame (211).

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