Air duct structure, machine core assembly and air supply device

Abstract

The utility model relates to the field of electrical equipment, and discloses an air duct structure, a machine core assembly and an air supply device, the air duct structure reduces the number of parts, reduces part mold opening, is beneficial to reducing manufacturing cost, can simplify the installation process, and can improve assembly efficiency. The air duct structure is applied to the air supply device, the air supply device comprises a functional part, the air duct structure comprises an air duct body and a first installation structure, the first installation structure is integrally formed in the air duct body and used for installing the functional part, and the functional part is arranged in the air duct body.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical equipment, and in particular to an air duct structure, a core component and an air supply device. Background Art

[0002] A heater is a common air supply device that can blow out warm air to provide users with warmth and is widely used in daily life. The heater is provided with an air duct structure inside, which includes an air duct body. The main function of the air duct body is to guide the air. The PCT heating element is assembled on the air duct body through the heating element bracket, and the mainboard and other electrical components are also mounted on the air duct body through their respective mounting carriers.

[0003] However, this type of air duct structure requires many parts to be assembled, such as the heating element bracket and the mounting carrier of the electrical components, which all require separate molds, resulting in high product manufacturing costs, cumbersome installation process, and low assembly efficiency. Utility Model Content

[0004] In view of this, the utility model provides an air duct structure, a core assembly and an air supply device to solve the problems that the existing air duct structure of a heater includes many parts, has a high manufacturing cost, is complicated to install and has a low assembly efficiency.

[0005] In a first aspect, the utility model provides an air duct structure, which is applied to an air supply device, wherein the air supply device includes a functional part, and the air duct structure includes:

[0006] Air duct body;

[0007] The first mounting structure is integrally formed with the air duct body. The first mounting structure is used to mount functional parts. The functional parts are arranged in the air duct body.

[0008] Beneficial effects: In the air duct structure of the utility model, the first mounting structure is integrally formed with the air duct body, and the first mounting structure is used to install functional parts (such as PTC heating elements), that is, the functional parts can be directly assembled to the air duct body through the first mounting structure without the aid of other mounting carriers, thereby reducing the number of parts and components, reducing part mold opening, and helping to reduce manufacturing costs, and can simplify the installation process and improve assembly efficiency.

[0009] In an optional embodiment, the air duct body includes an integrally formed first air outlet portion, a second air outlet portion and an air duct portion, the first air outlet portion is arranged at one end of the air duct portion, the second air outlet portion is arranged at the other end of the air duct portion, and the first air outlet portion and / or the second air outlet portion have a flaring structure extending obliquely outward in a direction away from the air duct portion.

[0010] Beneficial effect: The air duct structure of the utility model has a flared structure extending obliquely outward in a direction away from the air duct part, and one of the first air duct part and the second air duct part can be an air inlet, and the other can be an air outlet. When the air inlet of the air duct body has the flared structure, when the air entering from the outer edge of the flared structure (the edge away from the air duct part) reaches the inner edge of the flared structure (the edge close to the air duct part), the air flow rate increases, so that the air can enter the air duct part at an accelerated speed, achieving the effect of efficient wind gathering; and when the air outlet of the air duct body has the flared structure, the air outlet area of ​​the outer edge of the flared structure (the edge away from the air duct part) is larger than the air outlet area of ​​the inner edge of the flared structure (the edge close to the air duct part), which can greatly improve the aerodynamic efficiency of the air duct structure, increase the range of wind blowing, and disperse the noise at the same time, so as to achieve the purpose of reducing noise. Moreover, when the functional component is a PTC heating element, the flared structure can increase the heat dissipation area and improve the heat dissipation efficiency.

[0011] In an optional embodiment, the first mounting structure is arranged close to the air duct portion.

[0012] Beneficial effect: In the air duct structure of the utility model, the first mounting structure is arranged at a position close to the air duct portion, which makes full use of the structural space, and this position is far away from the air inlet end of the air inlet (the end away from the air duct portion) and the air outlet end of the air outlet (the end away from the air duct portion), which will not affect the air intake and air outlet effects of the air duct structure.

[0013] In an optional embodiment, the first tuyere portion and the second tuyere portion both have the flaring structure, and the first tuyere portion and the second tuyere portion are away from outer edges of the air duct portion and are smoothly connected to two ends of the air duct portion respectively.

[0014] Beneficial effect: In the air duct structure of the utility model, the first air outlet portion and the second air outlet portion are away from the outer edge of the air duct portion and are smoothly connected to the two ends of the air duct portion respectively, which can reduce wind resistance, make the air flow smoothly, and further reduce aerodynamic noise.

[0015] In an optional embodiment, the cross-sectional shape of one of the first air outlet portion and the second air outlet portion perpendicular to the air flow direction in the air duct portion is circular, and the cross-sectional shape of the other one perpendicular to the air flow direction is rectangular.

[0016] Beneficial effect: The air duct structure of the utility model, the shape structure of the first air outlet part and the second air outlet part, is easier to cooperate with the fan and the air outlet grille of the air supply device, thereby improving the adaptability of the structure.

[0017] In an optional embodiment, the cross-sectional shape of the first air outlet portion perpendicular to the air flow direction is circular, and the outer edge of the first air outlet portion away from the air channel portion is smoothly connected to the end of the air channel portion through a curved surface.

[0018] Beneficial effect: In the air duct structure of the utility model, when the cross-sectional shape of the first air outlet portion perpendicular to the air flow direction is circular, the outer edge of the first air outlet portion away from the air duct portion is smoothly connected to the end of the air duct portion through a curved surface. This structure with a smoothly connected curved surface facilitates the transition connection of the structure and facilitates manufacturing and forming.

[0019] In an optional embodiment, the cross-sectional shape of the second air outlet portion perpendicular to the air flow direction is a rectangle, and the outer edge of the second air outlet portion away from the air duct portion is smoothly connected to the end of the air duct portion via an inclined plane.

[0020] Beneficial effect: In the air duct structure of the utility model, when the cross-sectional shape of the second air outlet portion perpendicular to the air flow direction is a rectangle, the outer edge of the second air outlet portion away from the air duct portion is smoothly connected to the end of the air duct portion through an inclined plane. This structure with smooth connection of the inclined plane facilitates the transition connection of the structure and facilitates manufacturing and forming.

[0021] In an optional embodiment, the outer edge of the first air outlet portion away from the air duct portion has a first air outlet portion rib extending outwardly along the air flow direction in the air duct portion, and the outer edge of the second air outlet portion away from the air duct portion has a second air outlet portion rib extending outwardly along the air flow direction.

[0022] Beneficial effects: The air duct structure of the utility model, by providing the first air outlet surrounding ribs and the second air outlet surrounding ribs, facilitates the connection of the air duct structure with the fan and the air outlet grille, and improves the sealing of the connection.

[0023] In an optional embodiment, the first mounting structure includes a plug-in mechanism and / or a clamping structure, and the plug-in mechanism and the clamping structure are arranged on the inner wall of the first air outlet portion or the second air outlet portion.

[0024] Beneficial effects: The air duct structure of the utility model, the first installation structure includes a plug-in mechanism and / or a clamping structure. This installation structure is relatively simple and easy to manufacture, which is beneficial to reducing manufacturing costs. It is not easy to damage, has good reliability, is easy to install, and improves the convenience of installation.

[0025] In an optional embodiment, the plug-in mechanism includes one of a slot and a pin, and the other is arranged on the functional part.

[0026] Beneficial effects: The air duct structure of the utility model has a relatively simple plug-in mechanism, is easy to manufacture and mold, is beneficial to reducing manufacturing costs, is not easy to damage, has good reliability, and is easy to install.

[0027] In an optional embodiment, the snap-fit ​​structure extends inward from an inner wall of the first air outlet portion or the second air outlet portion, and snap-fits with an outer frame of the functional component.

[0028] Beneficial effects: The air duct structure of the utility model has a relatively simple snap-on structure, is easy to manufacture and mold, is beneficial to reducing manufacturing costs, is not easy to damage, has good reliability, and is easy to install.

[0029] In an optional embodiment, it further includes a second mounting structure, which is integrally formed on the outer wall of the air duct body. The air supply device also includes an electrical component, and the second mounting structure is used to mount the electrical component.

[0030] Beneficial effect: In the air duct structure of the utility model, the second mounting structure is integrally formed with the air duct body, and the second mounting structure can directly install electrical components without the aid of other mounting carriers, thereby further reducing the number of parts and components, which is conducive to reducing manufacturing costs, and can simplify the installation process and improve assembly efficiency.

[0031] In a second aspect, the utility model provides a core assembly, including a functional part, a fan and the air duct structure as described above, wherein the functional part and the fan are both arranged on the air duct body.

[0032] Because the core assembly of the present invention includes the air duct structure of the present invention and has the same beneficial effects as the air duct structure, it will not be described in detail here.

[0033] In an optional embodiment, the first air outlet portion or the second air outlet portion of the air duct structure is detachably connected to the fan, and the axial direction of the fan is parallel to the air flow direction in the air duct portion of the air duct structure.

[0034] Beneficial effect: In the core assembly of the utility model, the first air outlet portion or the second air outlet portion of the air duct structure is detachably connected to the fan, and the first air outlet portion or the second air outlet portion provided with the fan is the air inlet of the core assembly, thereby realizing the air intake of the core assembly.

[0035] In an optional implementation, the functional component is a heating element.

[0036] Beneficial effects: In the core assembly of the utility model, the functional part is a heating element, such as a PTC heating element. After the air passes through the heating element, the temperature of the air rises, thereby realizing the hot air supply function.

[0037] In a third aspect, the utility model provides an air supply device, comprising the core assembly as described above.

[0038] Because the air supply device of the utility model includes the core assembly of the utility model, it has the same beneficial effects as the core assembly, which will not be described in detail here.

[0039] In an optional embodiment, an air outlet grille is further included, and one of the first air outlet portion and the second air outlet portion of the air duct structure in the core assembly is detachably connected to the fan in the core assembly, and the other is detachably connected to the air outlet grille.

[0040] In an optional implementation, the air supply device is a heater. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0042] Figure 1 This is the front view of the air duct structure of the utility model;

[0043] Figure 2 It is a rear view of the air duct structure of the utility model;

[0044] Figure 3 It is a side view of the air duct structure of the utility model;

[0045] Figure 4 This is a side view of the air duct structure of the utility model from another angle;

[0046] Figure 5 It is a three-dimensional schematic diagram of the air duct structure of the utility model;

[0047] Figure 6 The figure is a schematic diagram of the coordination between the air duct structure and the functional parts of the utility model. Figure 1 ;

[0048] Figure 7 The figure is a schematic diagram of the coordination between the air duct structure and the functional parts of the utility model. Figure 2 ;

[0049] Figure 8 The figure is a schematic diagram of the coordination between the air duct structure and the functional parts of the utility model. Figure 3 ;

[0050] Fig. 9 This is a schematic diagram of the coordination between the air duct structure and the temperature limiter assembly of the utility model;

[0051] Fig.10 This is a schematic diagram of the coordination between the air duct structure and the driving plate of the utility model;

[0052] Fig.11 This is a schematic diagram of the coordination between the air duct structure and the fan of the utility model;

[0053] Fig.12 It is a schematic diagram of the air supply device (partial structure) of the utility model.

[0054] Description of reference numerals:

[0055] 101, first tuyere portion; 102, second tuyere portion; 103, air duct portion; 104, first tuyere portion surrounding ribs; 105, second tuyere portion surrounding ribs; 106, mainboard positioning column; 107, screw hole; 108, temperature limiter assembly positioning column;

[0056] 2. Functional parts;

[0057] 3. Fan; 4. Air outlet grille;

[0058] 5. Slot;

[0059] 6. Plug pins;

[0060] 7. Buckle;

[0061] 8. Motherboard;

[0062] 9. Temperature limiter assembly;

[0063] 10. Driver board. DETAILED DESCRIPTION

[0064] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0065] On the market, the PTC (Positive Temperature Coefficient) heating element of the heater needs to be installed on the air duct structure through the heating element bracket, and the main board, driver board, temperature limiter assembly and other electrical components in the heater also need to be assembled one by one on the outer wall of the air duct structure using their own mounting carriers. The heating element bracket and the mounting carriers of various electrical components need to be manufactured separately, resulting in high manufacturing costs, and the subsequent assembly process is also cumbersome, resulting in generally low assembly efficiency.

[0066] Based on this, the utility model provides an air duct structure, a core component and an air supply device.

[0067] Combine the following Figure 1-Figure 12 , describing the embodiments of the air duct structure, core assembly and air supply device of the utility model.

[0068] According to an embodiment of the utility model, in a first aspect, a duct structure is provided, which is applied to an air supply device, the air supply device includes a functional part 2, the duct structure includes a duct body and a first mounting structure, the first mounting structure is integrally formed with the duct body, the first mounting structure is used to install the functional part 2, and the functional part 2 is arranged in the duct body.

[0069] In this air duct structure, the first mounting structure is integrally formed with the air duct body, and the first mounting structure is used to mount a functional component 2 (such as a PTC heater). The functional component 2 can be directly assembled to the air duct body through the first mounting structure without the aid of other mounting carriers (such as brackets, etc.), thereby reducing the number of components and parts, reducing the number of component molds, and helping to reduce manufacturing costs. It can also simplify the installation process and improve assembly efficiency.

[0070] In an air supply device, the duct structure is mainly used to guide the air flow. The duct structure includes a duct body, which is usually made of high-strength materials such as metal to provide sufficient support for other structural components installed on the duct body.

[0071] In this embodiment, the functional part 2 of the air supply device is a PTC heater, which generates heat when powered on. When air flows through the PTC heater, the air is heated to hot air, so that the air blown out by the air supply device is hot air.

[0072] The first mounting structure is used to install the functional part 2, and the first mounting structure is integrally formed with the air duct body, so that the functional part 2 can be directly installed on the air duct body through the first mounting structure without the need for other separately formed mounting carriers for installation, thereby achieving the purpose of reducing manufacturing costs and improving assembly efficiency.

[0073] Furthermore, the air duct body includes an integrally formed first air outlet portion 101, a second air outlet portion 102 and an air duct portion 103, the first air outlet portion 101 is arranged at one end of the air duct portion 103, the second air outlet portion 102 is arranged at the other end of the air duct portion 103, and the first air outlet portion 101 and / or the second air outlet portion 102 have a flaring structure extending obliquely outward in a direction away from the air duct portion 103.

[0074] like Figure 3As shown, the air duct body includes a first air outlet portion 101, a second air outlet portion 102 and an air duct portion 103, and the first air outlet portion 101, the second air outlet portion 102 and the air duct portion 103 are integrally formed.

[0075] In this embodiment, the air duct portion 103 is a straight air duct portion, so that the air flow is smoother. The air duct portion 103 can be a columnar structure. Specifically, the air duct portion 103 is a quadrangular columnar structure, which is hollow inside and suitable for air flow. The height direction of the air duct portion 103 is set parallel to the air flow direction inside it (indicated by arrow A). The specific size of the air duct portion 103 can be set according to the design requirements of the air supply device. For the miniaturization design of the product, the height dimension of the air duct portion 103 can be set relatively small.

[0076] The air duct portion 103 has two ends, the first air outlet portion 101 is arranged at one end of the air duct portion 103, and the second air outlet portion 102 is arranged at the other end of the air duct portion 103. The first air outlet portion 101 can be used as an air inlet or an air outlet, and similarly, the second air outlet portion 102 can be used as an air inlet or an air outlet, which can be selected according to needs. When the first air outlet portion 101 is an air inlet, the second air outlet portion 102 is an air outlet, and when the second air outlet portion 102 is an air inlet, the first air outlet portion 101 is an air outlet. The air inlet end of the air inlet is the end away from the air duct portion, and the air outlet end of the air outlet is the end away from the air duct portion.

[0077] The expansion structure means that the flow area at the end of the first tuyere portion 101 (or the second tuyere portion 102) connected to the air channel portion 103 is smaller than the flow area at the end of the first tuyere portion 101 (or the second tuyere portion 102) away from the air channel portion 103. Figure 3 As shown, the flared structure is similar to a bell-mouth structure that expands outward.

[0078] Furthermore, the first mounting structure is disposed close to the air duct portion 103 .

[0079] Compared with the flared structure, the position close to the air duct portion 103 is a narrow air outlet position. The first mounting structure is arranged close to the air duct portion 103, which makes full use of the structural space. Moreover, this position is far away from the air inlet end of the air inlet (the end away from the air duct portion) and the air outlet end of the air outlet (the end away from the air duct portion), which will not affect the air intake and air outlet effects of the air duct structure.

[0080] In this embodiment, the first mounting structure is disposed at the air inlet and close to the air channel portion 103 .

[0081] Furthermore, both the first tuyere portion 101 and the second tuyere portion 102 have a flared structure, and outer edges of the first tuyere portion 101 and the second tuyere portion 102 away from the air channel portion 103 are smoothly connected to two ends of the air channel portion 103 respectively.

[0082] In this embodiment, the first air outlet portion 101 and the second air outlet portion 102 both have an expansion structure extending obliquely outwards away from the air channel portion 103. When the wind enters the air inlet, it will experience a process of high-speed wind gathering and then diffusely blown out from the air outlet.

[0083] When the first air inlet portion 101 is used as an air inlet, the outer edge of the first air inlet portion 101 away from the air channel portion 103 is the air inlet end of the air inlet. Similarly, when the second air inlet portion 102 is used as an air inlet, the outer edge of the second air inlet portion 102 away from the air channel portion 103 is the air inlet end of the air inlet. When the first air inlet portion 101 is used as an air outlet, the outer edge of the first air inlet portion 101 away from the air channel portion 103 is the air outlet end of the air outlet. Similarly, when the second air inlet portion 102 is used as an air outlet, the outer edge of the second air inlet portion 102 away from the air channel portion 103 is the air outlet end of the air outlet. The outer edges of the first air inlet portion 101 and the second air inlet portion 102 away from the air channel portion 103 are smoothly connected to the two ends of the air channel portion 103, that is, the air inlet end of the air inlet is smoothly connected to one end of the air channel portion 103, and the air outlet end of the air outlet is smoothly connected to the other end of the air channel portion 103. This smooth connection method can reduce wind resistance and aerodynamic noise, making air flow smoother.

[0084] Furthermore, the cross-sectional shape of one of the first tuyere portion 101 and the second tuyere portion 102 perpendicular to the air flow direction in the air channel portion 103 is circular, and the cross-sectional shape of the other perpendicular to the air flow direction is rectangular.

[0085] In order to match and install with the fan 3 and the air outlet grille 4 of the air supply device, one of the first air outlet portion 101 and the second air outlet portion 102 has a circular cross-sectional shape perpendicular to the air flow direction in the air duct portion 103, and the other has a rectangular cross-sectional shape perpendicular to the air flow direction.

[0086] Taking the case where the fan 3 is a rectangular fan and the air grille 4 is a circular fan, the cross-sectional shape of the air inlet perpendicular to the air flow direction should be a rectangle, and the cross-sectional shape of the air outlet perpendicular to the air flow direction should be a circle.

[0087] Specifically, the first air outlet portion 101 is an air outlet, and the second air outlet portion 102 is an air inlet, that is, the cross-sectional shape of the first air outlet portion 101 perpendicular to the air flow direction is circular, and the cross-sectional shape of the second air outlet portion 102 perpendicular to the air flow direction should be square. The air channel portion 103 is a quadrangular prism structure, that is, the cross-sectional shape of the air channel portion 103 perpendicular to the air flow direction is square.

[0088] Of course, the cross-sectional shape of one of the first air outlet portion 101 and the second air outlet portion 102 perpendicular to the air flow direction in the air duct portion 103 is circular, and the cross-sectional shape of the other perpendicular to the air flow direction can also be rectangular, as long as it can match the fan and the air outlet grille.

[0089] Furthermore, the cross-sectional shape of the first air outlet portion 101 perpendicular to the air flow direction is circular, and the outer edge of the first air outlet portion 101 away from the air channel portion 103 is smoothly connected to the end of the air channel portion 103 through a curved surface. This structure with a smoothly connected curved surface facilitates the transition connection of the structure, facilitates manufacturing and molding, and can reduce wind resistance. This flared structure with a smoothly connected curved surface is similar to a trumpet-shaped structure, which can guide wind and is conducive to wind dispersion and heat dissipation.

[0090] Furthermore, the cross-sectional shape of the second air outlet portion 102 perpendicular to the air flow direction is rectangular, and the outer edge of the second air outlet portion 102 away from the air channel portion 103 is smoothly connected to the end of the air channel portion 103 through an inclined plane. This structure with a smoothly connected inclined plane is convenient for realizing a transition connection of the structure, convenient for manufacturing and molding, and can reduce wind resistance. This flared structure connected by an inclined plane is similar to a trumpet-shaped structure, which can guide wind and is conducive to gathering wind.

[0091] Furthermore, the outer edge of the first tuyere portion 101 away from the air duct portion 103 has a first tuyere portion rib 104 extending outwardly along the air flow direction in the air duct portion 103, and the outer edge of the second tuyere portion 102 away from the air duct portion 103 has a second tuyere portion rib 105 extending outwardly along the air flow direction.

[0092] In order to facilitate the connection between the first air outlet portion 101 and the air outlet grille 4, the first air outlet portion 101 has a first air outlet portion rib 104 at the outer edge away from the air channel portion 103 (i.e., the air outlet end of the air outlet), and the first air outlet portion rib 104 extends outward along the air flow direction in the air channel portion 103. The length of the first air outlet portion rib 104 extending outward along the air flow direction in the air channel portion 103 can be set as needed.

[0093] In order to facilitate the connection between the second tuyere portion 102 and the fan 3, the second tuyere portion 102 has a second tuyere portion rib 105 at the outer edge away from the air channel portion 103 (i.e., the air inlet end of the air inlet), and the second tuyere portion rib 105 extends outwardly along the air flow direction in the air channel portion 103. The length of the second tuyere portion rib 105 extending outwardly along the air flow direction in the air channel portion 103 can be set as needed.

[0094] Furthermore, the first mounting structure includes a plug-in mechanism and / or a clamping structure, and the plug-in mechanism and the clamping structure are arranged on the inner wall of the first tuyere portion 101 or the second tuyere portion 102 .

[0095] In this embodiment, the first mounting structure includes a plug-in mechanism and a snap-in structure to make the installation of the functional part 2 more secure. The first mounting structure is arranged at the air inlet and close to the air duct portion 103, and the air inlet is the second air inlet portion 102. The plug-in mechanism and the snap-in structure are arranged on the inner wall of the second air inlet portion 102. The inner wall of the second air inlet portion 102 is an inclined plane. Therefore, the plug-in mechanism and the snap-in structure are arranged on the inclined plane. Figure 6-7 shown.

[0096] Of course, in other embodiments, the first installation structure may only include a plug-in mechanism, or only include a snap-on structure.

[0097] Furthermore, the plug-in mechanism includes one of a slot 5 and a pin 6 , and the other one is arranged on the functional part 2 .

[0098] In this embodiment, the plug-in mechanism includes a slot 5, and a pin 6 is provided on the functional part 2, and the pin 6 is suitable for being inserted into the slot 5. Specifically, the functional part 2 is a PTC heating element, which is in the shape of a square, and a plurality of pins 6 are provided on one side thereof, and each pin 6 is arranged at intervals. Accordingly, a plurality of slots 5 are provided on the inner wall of the second air outlet portion 102. Since the inner wall of the second air outlet portion 102 is an inclined plane and the slot 5 is an inclined groove, in order to facilitate installation, the pin 6 can be inserted into the slot 5 at an angle, and then the functional part 2 is rotated in the direction close to the air duct portion 103 so that the plane where the functional part 2 is located is perpendicular to the air flow direction. In this embodiment, five slots 5 and five pins 6 are provided.

[0099] Of course, in other embodiments, the plug-in mechanism may include the plug pins 6 , and the slot 5 is provided on the functional component 2 , which can also achieve the purpose of installing the functional component 2 .

[0100] Furthermore, the snap-fit ​​structure extends inward from the inner wall of the first tuyere portion 101 or the second tuyere portion 102 , and snap-fits with the outer frame of the functional component 2 .

[0101] In this embodiment, the second air inlet portion 102 is an air inlet, and the snap-fit ​​structure extends inward from the inner wall of the second air inlet portion 102. Specifically, the snap-fit ​​structure includes a plurality of snaps 7, which are arranged at intervals. The snaps 7 extend inward from the inner wall of the second air inlet portion 102 and snap-fit ​​with the outer frame of the functional component 2. The snaps 7 should have a certain elasticity, and the snaps 7 can produce a certain deformation under the extrusion of the outer frame of the functional component 2 to avoid the installation path of the outer frame of the functional component 2. When the outer frame of the functional component 2 passes through the snaps 7, the snaps 7 return to their original position under the action of the elastic restoring force and snap-fit ​​the outer frame of the functional component 2 away from the side of the air duct portion 103, so that the functional component 2 is fixed. It can be understood that the size of the functional component 2 is slightly larger than the size of the air duct portion 103, or abutting ribs are provided on the inner wall of the air duct portion 103 to abut the outer frame of the functional component 2 toward the side of the air duct portion 103.

[0102] In other embodiments, the clamping structure may also be provided on the inner wall of the first tuyere portion 101 .

[0103] Furthermore, the air duct structure also includes a second mounting structure, which is integrally formed on the outer wall of the air duct body. The air supply device also includes an electrical component, and the second mounting structure is used to install the electrical component.

[0104] The electrical components of the air supply device include a main board 8, a temperature limiter assembly 9 and a drive board 10, so the second mounting structure can respectively mount the main board 8, the temperature limiter assembly 9 and the drive board 10. That is, the second mounting structure includes a main board mounting structure, a temperature limiter assembly mounting structure and a drive board mounting structure to improve the integrated assembly of the air duct structure and improve the assembly efficiency. In addition, in order to avoid excessive concentration of the structure, the main board mounting structure, the temperature limiter assembly mounting structure and the drive board mounting structure are respectively arranged on different sides of the outer wall of the air duct portion 103.

[0105] Specifically, the motherboard installation structure includes two motherboard positioning columns 106 and a screw hole 107. The motherboard 8 has two motherboard positioning holes, which are suitable for inserting the motherboard positioning columns. The screws are then screwed into the screw holes to achieve the installation of the motherboard 8.

[0106] The temperature limiter assembly installation structure includes two temperature limiter assembly positioning columns 108 and two screw holes 107. The temperature limiter assembly 9 has two temperature limiter group positioning holes. The temperature limiter group positioning holes are suitable for inserting the temperature limiter assembly positioning columns, and then screwing the screws into the screw holes to achieve the installation of the temperature limiter assembly 9.

[0107] The drive plate installation structure includes a drive plate positioning column and a screw hole 107. The drive plate 10 has a drive plate positioning hole, which is suitable for inserting the drive plate positioning column. The screw is then screwed into the screw hole to achieve the installation of the drive plate 10.

[0108] This embodiment also provides a core assembly, including a functional component 2, a fan 3 and the above-mentioned air duct structure, and the functional component 2 and the fan 3 are both arranged in the air duct body.

[0109] The functional component 2 is a PTC heating element, the fan 3 is a DC fan, the functional component 2 is installed on the air duct body through a first installation structure, and the fan 3 can be installed on the air duct body through screws.

[0110] Furthermore, the first air outlet portion 101 or the second air outlet portion 102 of the air duct structure is detachably connected to the fan 3 , and the axial direction of the fan 3 is parallel to the air flow direction in the air duct portion 103 of the air duct structure.

[0111] Specifically, the second air inlet 102 is an air inlet, the fan 3 is detachably connected to the second air inlet 102, and the axial direction of the fan 3 is parallel to the air flow direction in the air duct 103 of the air duct structure. Driven by the fan 3, external air enters the air duct body from the second air inlet 102.

[0112] Since the outer edge of the second tuyere portion 102 away from the air channel portion 103 has the second tuyere portion surrounding rib 105, it is convenient to connect the second tuyere portion 102 with the fan 3, so that the sealing performance of the two is better.

[0113] This embodiment also provides an air supply device, including the above-mentioned core assembly.

[0114] In this embodiment, the air supply device is specifically a heater, which can deliver hot air to warm the user. Of course, the air supply device can also be a fan, an air conditioning fan, etc. The air supply device of this embodiment also has structural components that other existing air supply devices have, which will not be repeated here.

[0115] Furthermore, the air supply device also includes an air outlet grille 4 , one of the first air outlet portion 101 and the second air outlet portion 102 of the air duct structure in the core assembly is detachably connected to the fan 3 in the core assembly, and the other is detachably connected to the air outlet grille 4 .

[0116] The air outlet grille 4 is detachably connected to the air outlet of the air duct structure. In this embodiment, the first air outlet portion 101 is the air outlet, the second air outlet portion 102 is the air inlet, the first air outlet portion 101 is detachably connected to the air outlet grille 4, and the second air outlet portion 102 is detachably connected to the fan 3. The above-mentioned detachable connection method can be a bolt-tightening connection.

[0117] The outer edge of the first air outlet portion 101 away from the air duct portion 103 has a first air outlet portion rib 104, and correspondingly, the air outlet grille 4 also has an air outlet grille rib. The first air outlet portion rib 104 and the air outlet grille rib are interlocked with each other to achieve a sealed connection effect, while also reducing unnecessary heat flow loss and improving the heating effect.

[0118] Furthermore, the inner diameter of the first tuyere portion rib 104 is d1, and the outer diameter of the air grille rib is d2 (without considering a small fitting clearance), then d1=d2.

[0119] The first air outlet portion 101 and the second air outlet portion 102 of the air duct structure have a flared structure. The flared structure of the second air outlet portion 102 has the function of efficiently gathering wind and energy, while the flared structure of the first air outlet portion 101 can increase the heat dissipation area, increase the air volume, and greatly improve the aerodynamic efficiency of the air duct, while reducing noise and improving user experience.

[0120] The installation process of the air supply device of this embodiment is described below in conjunction with the accompanying drawings:

[0121] First, insert the pin 6 of the functional part 2 into the slot 5, and then fix the outer frame of the functional part 2 by the buckle 7 to achieve the installation of the functional part 2; then, install the main board 8, the temperature limiter assembly 9 and the drive board 10 one by one on the outer wall of the air duct structure through the second installation structure; then, install the fan 3 at the second air outlet part rib 105 of the second air outlet part 102, and install the air outlet grille 4 at the first air outlet part rib 104 of the first air outlet part 101.

[0122] The working process of the air supply device is described below:

[0123] When the air supply device is started, the fan 3 and the PTC heater start to work, and the external air enters the second air inlet portion 102 under the action of the fan 3. Due to the expansion structure of the second air inlet portion 102, the air can be accelerated to enter the air duct portion 103, thereby achieving a wind gathering effect. The air flows from the air duct portion 103 to the first air inlet portion 101, and is heated to hot air when passing through the PTC heater. The hot air continues to flow to the first air inlet portion 101. Due to the expansion structure of the first air inlet portion 101, the heat dissipation area of ​​the hot air can be accelerated, the air expansion surface can be increased, the starting efficiency can be improved, and the aerodynamic noise can be reduced at the same time.

[0124] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. An air duct structure, characterized in that: Applied to an air supply device, the air supply device comprises a functional part (2), and the air duct structure comprises: Air duct body; A first mounting structure is integrally formed with the air duct body, the first mounting structure is used to mount a functional component (2), and the functional component (2) is arranged in the air duct body.

2. The air duct structure according to claim 1, characterized in that: The air duct body comprises an integrally formed first air outlet portion (101), a second air outlet portion (102) and an air duct portion (103); the first air outlet portion (101) is arranged at one end of the air duct portion (103); the second air outlet portion (102) is arranged at the other end of the air duct portion (103); the first air outlet portion (101) and / or the second air outlet portion (102) have a flaring structure extending obliquely outward in a direction away from the air duct portion (103).

3. The air duct structure according to claim 2, characterized in that: The first mounting structure is arranged close to the air duct portion (103).

4. The air duct structure according to claim 2, characterized in that: The first air outlet portion (101) and the second air outlet portion (102) both have the flaring structure, and the outer edges of the first air outlet portion (101) and the second air outlet portion (102) away from the air duct portion (103) are smoothly connected to the two ends of the air duct portion (103) respectively.

5. The air duct structure according to claim 4, characterized in that: One of the first air outlet portion (101) and the second air outlet portion (102) has a circular cross-sectional shape perpendicular to the air flow direction in the air channel portion (103), and the other has a rectangular cross-sectional shape perpendicular to the air flow direction.

6. The air duct structure according to claim 5, characterized in that: The cross-sectional shape of the first air outlet portion (101) perpendicular to the air flow direction is circular, and the outer edge of the first air outlet portion (101) away from the air channel portion (103) is smoothly connected to the end of the air channel portion (103) via a curved surface.

7. The air duct structure according to claim 5, characterized in that: The cross-sectional shape of the second air outlet portion (102) perpendicular to the air flow direction is rectangular, and the outer edge of the second air outlet portion (102) away from the air duct portion (103) is smoothly connected to the end of the air duct portion (103) via an inclined plane.

8. The air duct structure according to claim 2, characterized in that: The outer edge of the first air outlet portion (101) away from the air duct portion (103) has a first air outlet portion rib (104) extending outwardly along the air flow direction in the air duct portion (103), and the outer edge of the second air outlet portion (102) away from the air duct portion (103) has a second air outlet portion rib (105) extending outwardly along the air flow direction.

9. The air duct structure according to claim 2, characterized in that: The first mounting structure comprises a plug-in mechanism and / or a clamping structure, and the plug-in mechanism and the clamping structure are arranged on the inner wall of the first tuyere portion (101) or the second tuyere portion (102).

10. The air duct structure according to claim 9, characterized in that: The plug-in mechanism comprises one of a slot (5) and a plug pin (6), and the other of the slots is arranged on the functional part (2).

11. The air duct structure according to claim 9, characterized in that: The clamping structure extends inward from the inner wall of the first air outlet portion (101) or the second air outlet portion (102), and is clamped and matched with the outer frame of the functional component (2).

12. The air duct structure according to any one of claims 1 to 11, characterized in that: It also includes a second mounting structure, which is integrally formed on the outer wall of the air duct body. The air supply device also includes an electrical component, and the second mounting structure is used to mount the electrical component.

13. A movement assembly, characterized in that: It comprises a functional component (2), a fan (3) and an air duct structure according to any one of claims 1 to 10, wherein the functional component (2) and the fan (3) are both arranged on the air duct body.

14. The movement assembly according to claim 13, characterized in that: The first air outlet portion (101) or the second air outlet portion (102) of the air duct structure is detachably connected to the fan (3), and the axial direction of the fan (3) is parallel to the air flow direction in the air duct portion (103) of the air duct structure.

15. The movement assembly according to claim 13 or 14, characterized in that: The functional component (2) is a heating element.

16. An air supply device, characterized in that: Comprising a movement assembly as described in any one of claims 13-15.

17. The air supply device according to claim 16, characterized in that: It also includes an air outlet grille (4), one of the first air outlet portion (101) and the second air outlet portion (102) of the air duct structure in the core component is detachably connected to the fan (3) in the core component, and the other is detachably connected to the air outlet grille (4).

18. The air supply device according to claim 16 or 17, characterized in that: The air supply device is a heater.

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