Head assembly and air outlet device

Abstract

This utility model relates to the field of electrical equipment, and discloses a fan head assembly and an air outlet device. The fan head assembly features a high connection strength between its upper and lower shells, preventing deformation and ensuring good structural stability. It also has a small gap between the upper and lower shells, resulting in a high-quality product appearance. The fan head assembly of this utility model is applied to an air outlet device. The fan head assembly includes: an upper shell, a lower shell, a connecting structure, and a limiting structure. The connecting structure is disposed between the upper and lower shells, connecting the upper shell to the lower shell. The limiting structure is disposed between the upper and lower shells and is used to limit the upper shell and / or the lower shell in a first direction.

Description

Technical Field

[0001] This utility model relates to the field of electrical equipment technology, specifically to a head assembly and an air outlet device. Background Technology

[0002] Fans and other air-dissipating devices are household appliances that use an electric motor to drive the fan blades to rotate, thereby accelerating the circulation of air. They are mainly used for cooling and ventilating the air and are widely used in homes, classrooms, offices, shops, hospitals, hotels, and other places.

[0003] The existing fan head assembly mainly consists of an upper shell, a lower shell, and an air duct. After the upper shell, lower shell, and air duct are installed, the upper shell and lower shell are prone to deformation due to inaccurate positioning or excessive compression. Moreover, there are obvious gaps at the mating surfaces of the upper shell and lower shell, which affects the appearance quality of the product. Utility Model Content

[0004] In view of this, the present invention provides a fan head assembly and an air outlet device to solve the problems of easy deformation of existing fan head assemblies and large gaps between the upper and lower shells.

[0005] In a first aspect, this utility model provides a head assembly for use in an air outlet device, the head assembly comprising:

[0006] Top shell;

[0007] Lower shell;

[0008] A connecting structure is provided between the upper shell and the lower shell, wherein the upper shell is connected to the lower shell through the connecting structure;

[0009] A limiting structure is provided on the upper shell and the lower shell for limiting the upper shell and / or the lower shell in a first direction.

[0010] Beneficial effects: The head assembly of this utility model, by setting a connecting structure between the upper and lower shells, greatly improves the connection strength between the upper and lower shells, enhances the assembly strength of the upper and lower shells, and makes the upper and lower shells less prone to deformation during and after assembly. Moreover, the upper and lower shells are also limited in the first direction by a limiting structure, so that the upper and lower shells will not move relative to each other in the first direction, making the mating position of the upper and lower shells more accurate and the force more even, avoiding deformation caused by excessive local extrusion, ensuring the structural stability of the head assembly, thereby reducing the gap at the mating surface of the upper and lower shells and improving the appearance quality of the product.

[0011] In one optional embodiment, the limiting structure includes a first limiting structure disposed on the upper shell end face and / or the lower shell end face.

[0012] Beneficial effects: The head assembly of this utility model includes a first limiting structure, which is disposed on the end face of the upper shell and / or the end face of the lower shell to limit the end face of the upper shell and / or the lower shell in a first direction, restricting the relative movement of the upper shell and the lower shell in the first direction, improving structural reliability, making the upper shell and the lower shell less prone to deformation, and reducing the gap at the joint between the two.

[0013] In one alternative implementation, the first limiting structure is a folded structure.

[0014] Beneficial effects: The first limiting structure of the head assembly of this utility model is a folded structure. This folded structure is relatively simple, easy to set and form, and can effectively limit the relative movement of the upper shell and the lower shell in the first direction, thereby improving the reliability and stability of the structure.

[0015] In one optional embodiment, the folded structure includes a first mating position and a second mating position connected together, wherein in the first direction, the second mating position is disposed closer to the outside than the first mating position.

[0016] Beneficial effects: The head assembly of this utility model has a folded structure including a first mating position and a second mating position connected to each other, and the second mating position is located outside the first mating position. This folded structure is relatively simple, easy to manufacture and form, does not increase manufacturing costs, and has a good limiting effect, which can effectively limit the relative movement between the upper shell and the lower shell in the first direction.

[0017] In one alternative embodiment, the second mating position is inclined toward the upper shell or the lower shell relative to the first mating position.

[0018] Beneficial effects: In the head assembly of this utility model, the second mating position can be inclined relative to the first mating position towards the upper or lower shell to achieve reliable limiting of the upper or lower shell. Since the lower shell is more prone to deformation during and after assembly than the upper shell, the second mating position is inclined relative to the first mating position towards the lower shell so that the first limiting structure can reliably limit the lower shell in the first direction. This also ensures uniform force distribution between the upper and lower shells, reduces assembly gaps and local stress concentration, avoids large gaps at the mating surfaces of the upper and lower shells, and improves the product's appearance quality.

[0019] In one optional embodiment, the first mating position is disposed along the first direction, and the second mating position is tilted at an angle α of 30° to 45° relative to the first mating position.

[0020] Beneficial effects: In the head assembly of this utility model, the second mating position is tilted at an angle α of 30° to 45° relative to the first mating position. At the above tilt angle, the mating contact surface of the upper shell and the lower shell is subjected to more uniform force when they are assembled, which further reduces the assembly gap and local stress concentration problem, avoids large gaps at the mating surface of the upper shell and the lower shell, and further improves the appearance quality of the product.

[0021] In one optional embodiment, the limiting structure includes a second limiting structure, wherein the end face of the upper shell mates with the end face of the lower shell, and the second limiting structure is disposed on the upper shell and the lower shell.

[0022] Beneficial effects: The head assembly of this utility model includes a second limiting structure, and the upper shell and lower shell are further limited by the second limiting structure, which further restricts the relative movement of the upper shell and lower shell in the first direction, so that the fit between the two after assembly is better, the assembly gap is reduced, the connection tightness and stability of the mating position of the two are improved, stress concentration is avoided, large deformation of the upper shell and lower shell is avoided, and large gaps will not appear at the mating surface of the upper shell and lower shell, resulting in better product appearance quality.

[0023] In one optional embodiment, the second limiting structure includes a limiting protrusion and a limiting groove, the limiting protrusion being adapted to be inserted into the limiting groove, one of the limiting protrusion and the limiting groove being disposed on the upper shell and the other being disposed on the lower shell.

[0024] Beneficial effects: The second limiting structure of the head assembly of this utility model includes a limiting protrusion and a limiting groove. This second limiting structure is relatively simple and highly reliable, and easy to set and form. While ensuring the limiting effect, it is beneficial to control the manufacturing cost.

[0025] In one optional embodiment, the connection structure includes a buckle and a slot, one of which is disposed at the end of the upper shell and the other is disposed at the end of the lower shell, and the buckle engages with the slot.

[0026] Beneficial effects: The head assembly of this utility model has a connection structure including a buckle and a slot. The buckle and the slot can be engaged and matched. This connection structure is relatively simple, strong and reliable, easy to manufacture and form, and has a low manufacturing cost.

[0027] In one optional embodiment, the mating contact surface between the buckle and the slot is an arc-shaped surface or a plane.

[0028] Beneficial effects: In the head assembly of this utility model, the mating contact surface between the buckle and the slot can be an arc-shaped surface or a flat surface. When the mating contact surface between the buckle and the slot is an arc-shaped surface, the contact area between the buckle and the slot is larger, the connection strength between the buckle and the slot is higher, and the buckle is less likely to fall out of the slot, thus improving the structural reliability. When the mating contact surface between the buckle and the slot is a flat surface, the buckle and the slot are easier to assemble, which helps to improve assembly efficiency.

[0029] In one alternative embodiment, at least a portion of the inner wall of the slot is provided with an elastic element.

[0030] Beneficial effects: In the head assembly of this utility model, at least part of the inner wall of the slot is provided with an elastic element. When the buckle and the slot are assembled, the elastic element can absorb part of the external force to reduce the direct impact between the upper shell and the lower shell during the assembly process, so as to make the structure of the upper shell and the lower shell more stable and less susceptible to deformation due to external forces.

[0031] In one alternative embodiment, at least two sets of the connecting structures are provided at each end where the upper shell and the lower shell mate.

[0032] Beneficial effects: The head assembly of this utility model has at least two sets of connecting structures at each end where the upper and lower shells mate, which makes the connection force between the upper and lower shell ends more balanced, enhances the connection strength between them, avoids local stress concentration problems, makes the upper and lower shells less prone to deformation, reduces the gap at the mating position of the upper and lower shells, and improves the product appearance.

[0033] Secondly, this utility model also provides an air outlet device, including the head assembly as described above.

[0034] Since the air outlet device of this utility model includes the head assembly of this utility model and has the same beneficial effects as the head assembly, it will not be described in detail here.

[0035] In one alternative implementation, the air outlet device is a fan or a heater.

[0036] Beneficial effects: The air outlet device of this utility model can be a fan or a heater, and has a wide range of applications. Attached Figure Description

[0037] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0038] Figure 1This is a schematic diagram of the overall air outlet device of this utility model;

[0039] Figure 2 for Figure 1 An enlarged schematic diagram of part A in the middle;

[0040] Figure 3 for Figure 2 Enlarged schematic diagram of part B in the middle;

[0041] Figure 4 This is another schematic diagram of the head assembly of this utility model;

[0042] Figure 5 for Figure 4 An enlarged schematic diagram of section C;

[0043] Figure 6 This is a three-dimensional schematic diagram of the upper shell in the head assembly of this utility model;

[0044] Figure 7 for Figure 6 An enlarged schematic diagram of section D in the middle;

[0045] Figure 8 This is a three-dimensional schematic diagram of the lower shell in the head assembly of this utility model;

[0046] Figure 9 for Figure 8 An enlarged schematic diagram of section E in the middle;

[0047] Figure 10 This is a three-dimensional schematic diagram of the lower shell of the head assembly of this utility model from another angle;

[0048] Figure 11 This is a schematic diagram of the slot in the head assembly of this utility model;

[0049] Figure 12 This is a schematic diagram showing the upper and lower shells of the air outlet device of this utility model and their fit with the air duct.

[0050] Explanation of reference numerals in the attached figures:

[0051] 1. Upper shell; 101. First stop surface of the upper shell; 102. Second stop surface of the upper shell;

[0052] 2. Lower shell; 201. First stop surface of lower shell; 202. Second stop surface of lower shell;

[0053] 301. First mating position; 302. Second mating position;

[0054] 401. Limiting protrusion; 402. Limiting groove;

[0055] 501, buckle; 502, slot; 5021, guide surface;

[0056] 6. Air duct;

[0057] 7. Fixing buckle;

[0058] 8. Support rod assembly;

[0059] 9. Front net;

[0060] 10. Back net;

[0061] 11. Elastic components. Detailed Implementation

[0062] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0063] Currently, in fan head assemblies, the upper and lower housings are assembled separately from the air duct. The upper housing is assembled at the top of the air duct, and the lower housing at the bottom, with their end faces aligned after assembly. During assembly, inaccurate alignment can easily lead to uneven stress and concentration, causing significant deformation of either the upper or lower housing. This results in noticeable gaps at the end faces of the upper and lower housings, leading to poor product appearance and allowing external dust to easily enter the fan, affecting the lifespan of other internal structures. Furthermore, insufficient connection strength between the upper and lower housings after assembly makes them susceptible to deformation, loosening, or displacement under external forces, impacting the product's structural stability.

[0064] Based on this, the present invention provides a head assembly and air outlet device with high connection strength between the upper and lower shells, which is not easily deformed and has small gaps.

[0065] The following is combined Figures 1-12 This describes an embodiment of the head assembly and air outlet device of this utility model.

[0066] According to an embodiment of the present invention, in a first aspect, a head assembly is provided for use in an air outlet device. The head assembly includes: an upper shell 1, a lower shell 2, a connecting structure, and a limiting structure. The connecting structure is disposed on the upper shell 1 and the lower shell 2. The upper shell 1 is connected to the lower shell 2 through the connecting structure. The limiting structure is disposed on the upper shell 1 and the lower shell 2 for limiting the upper shell 1 and / or the lower shell 2 in a first direction.

[0067] This type of machine head assembly, by setting a connecting structure between the upper shell 1 and the lower shell 2, greatly improves the connection between the upper shell 1 and the lower shell 2, enhances the assembly strength of the upper shell 1 and the lower shell 2, and makes the upper shell 1 and the lower shell 2 less prone to deformation during and after assembly. Moreover, the upper shell 1 and the lower shell 2 are also limited in the first direction by a limiting structure, so that the upper shell 1 and the lower shell 2 will not move relative to each other in the first direction. This makes the mating position of the upper shell 1 and the lower shell 2 more accurate and the force more even, avoiding deformation caused by excessive local extrusion strength, ensuring the structural stability of the machine head assembly, thereby reducing the gap at the mating surface of the upper shell 1 and the lower shell 2 and improving the appearance quality of the product.

[0068] The head assembly of this embodiment is applied to an air outlet device, such as a fan or a heater. The air outlet device includes a head assembly and a support rod assembly 8. The head assembly is located on top of the support rod assembly 8 and can swing horizontally back and forth relative to the support rod assembly 8 to realize the air supply function of the air outlet device. The head assembly contains blades and a motor that drives the blades to rotate.

[0069] The head assembly includes an upper shell 1 and a lower shell 2, which, after assembly, form the housing of the head assembly. This housing is typically a near-cylindrical structure; therefore, the upper shell 1 and lower shell 2 are arc-shaped cylindrical structures. Optionally, the upper shell 1 and lower shell 2 are semi-circular arc-shaped cylindrical structures. Figure 6 and Figure 8 As shown, both the upper shell 1 and the lower shell 2 have two ends. When the upper shell 1 and the lower shell 2 are assembled, the two ends of the upper shell 1 are respectively mated and installed with the corresponding two ends of the lower shell 2, thereby forming a near-cylindrical shell. The upper shell 1 is connected to the lower shell 2 through a connecting structure, which can enhance the connection strength between the upper shell 1 and the lower shell 2, making it less likely for the upper shell 1 and the lower shell 2 to deform or produce large gaps during and after assembly.

[0070] Furthermore, the upper shell 1 and the lower shell 2 are also limited in the first direction by a limiting structure. Figure 1 The direction indicated by the middle arrow a-a' is the first direction. In this embodiment, since the housing of the head assembly is a near-cylindrical structure, the first direction is also radial. By setting a limiting structure, the upper shell 1 and the lower shell 2 will not move relative to each other in the first direction. The upper shell 1 and the lower shell 2 are more accurately aligned and the force is more evenly distributed, avoiding deformation caused by excessive local extrusion intensity, ensuring the structural stability of the head assembly, thereby reducing the gap at the mating surface of the upper shell 1 and the lower shell 2 and improving the appearance quality of the product.

[0071] It should be noted that the limiting structure can limit the upper shell 1 only in the first direction, or limit the lower shell 2 only in the first direction, or limit both the upper shell 1 and the lower shell 2 in the first direction. The setting can be selected according to the structure of the specific product, as long as it ensures that the upper shell 1 and the lower shell 2 do not move relative to each other in the first direction.

[0072] Furthermore, the connection structure includes a buckle 501 and a slot 502, one of which is disposed at the end of the upper shell 1 and the other is disposed at the end of the lower shell 2, and the buckle 501 and the slot 502 are engaged.

[0073] like Figure 3 As shown, the connection structure includes a buckle 501 and a slot 502. The buckle 501 and the slot 502 can be engaged. One of the buckle 501 and the slot 502 is located at the end of the upper shell 1, and the other is located at the end of the lower shell 2. When the buckle 501 and the slot 502 are engaged, the upper shell 1 and the lower shell 2 are connected.

[0074] In this embodiment, a snap fastener 501 is disposed at the end of the upper shell 1, and a slot 502 is disposed at the end of the lower shell 2. The snap fastener 501 has a certain degree of elasticity to facilitate the snap-fit ​​engagement between the snap fastener 501 and the slot 502. After the snap fastener 501 and the slot 502 are engaged, the ends of the upper shell 1 and the lower shell 2 are assembled and connected.

[0075] In other embodiments, the buckle 501 may also be disposed at the end of the lower shell 2, and the slot 502 may be disposed at the end of the upper shell 1, as long as the buckle 501 and the slot 502 can be matched and installed.

[0076] Furthermore, at least two sets of connecting structures are provided at each end where the upper shell 1 and the lower shell 2 mate.

[0077] The number of connection structures between shell 1 and lower shell 2 is selected according to the size and structure of the product. For example, two, three, or four sets of connection structures are set at each end of the upper shell 1 and lower shell 2 to ensure that the connection strength between the upper shell 1 and lower shell 2 meets the requirements.

[0078] In this embodiment, each end of the upper shell 1 and the lower shell 2 that mates is provided with two sets of connecting structures, so that the connection force between the upper shell 1 and the lower shell 2 is more uniform and stable, and the connection strength is guaranteed.

[0079] Optionally, adjacent connecting structures are spaced apart to make the connection force between the upper shell 1 and the lower shell 2 more balanced, which facilitates the structure setting and installation operation.

[0080] Furthermore, the mating contact surface 503 between the buckle 501 and the slot 502 is an arc-shaped surface or a flat surface.

[0081] After the buckle 501 and the slot 502 are engaged, they form a mating contact surface 503, which is jointly formed by a portion of the surface of the buckle 501 and a portion of the surface of the slot 502. After the buckle 501 and the slot 502 are engaged, a portion of the surface of the buckle 501 and a portion of the surface of the slot 502 come into contact, and this mating surface is the mating contact surface 503. Optionally, the surface portions of the buckle 501 and the slot 502 should have the same shape to ensure a tighter and more snug fit, thus guaranteeing the connection strength between the buckle 501 and the slot 502.

[0082] like Figure 3 As shown, in this embodiment, the mating contact surface 503 is planar, allowing for a tighter and more snug fit between the buckle 501 and the slot 502. This increases the contact area and friction between the buckle 501 and the slot 502, making it less likely for the buckle 501 and the slot 502 to detach, thus ensuring the connection strength between the upper shell 1 and the lower shell 2. Simultaneously, the planar nature of the mating contact surface 503 facilitates the assembly of the buckle 501 and the slot 502, ensuring the buckle 501 can be smoothly installed and improving assembly efficiency. Furthermore, the shape of the mating contact surface 503 is not limited; for example, it can be rectangular, trapezoidal, etc.

[0083] In other embodiments, the contact surface 503 is also an arc surface. In this case, the contact area and friction between the buckle 501 and the slot 502 are larger, which further improves the connection strength between the upper shell 1 and the lower shell 2. However, during assembly, a certain squeezing force needs to be applied so that the buckle 501 can be installed in place.

[0084] like Figure 7 As shown, the buckle 501, also known as the male buckle, is located at the end of the upper shell 1. Two buckles 501 are provided at one end of the upper shell 1, and the two buckles 501 are spaced apart.

[0085] like Figure 9 , Figure 10 As shown, the slot 502, also known as the female buckle, is located at the end of the lower shell 2. The position of the slot 502 corresponds to that of the buckle 501. Two slots 502 are provided at one end of the lower shell 2, and the two slots 502 are spaced apart.

[0086] Optionally, a guide surface 5021 is provided on the outer edge of the slot 502. The guide surface 5021 is inclined. When the buckle 501 is assembled with the slot 502, the buckle 501 contacts the guide surface 5021 of the slot 502 first. The guide surface 5021 can guide the buckle 501 to smoothly and quickly enter the slot 502, thereby realizing the fast and accurate installation of the buckle 501 and the slot 502, improving installation efficiency and assembly accuracy.

[0087] Furthermore, at least a portion of the inner wall of the slot 502 is provided with an elastic element 11.

[0088] When the buckle 501 and the slot 502 engage, an instantaneous impact force is generated between them. In this embodiment, at least a portion of the inner wall of the slot 502 is provided with an elastic element 11. The elastic element 11 can absorb the impact force, reduce the direct impact between the buckle 501 and the slot 502, avoid damage to the buckle 501 and the slot 502 structure, and ensure the service life and connection reliability of the buckle 501 and the slot 502.

[0089] like Figure 11 As shown, in this embodiment, the inner bottom wall and side wall of the card slot 502 are provided with elastic elements 11 to ensure the absorption effect of impact force.

[0090] The elastic element 11 can be made of flexible materials such as rubber or sponge.

[0091] Furthermore, the limiting structure includes a first limiting structure, wherein the end face of the upper shell 1 mates with the end face of the lower shell 2, and the first limiting structure is disposed on the end face of the upper shell 1 and / or the end face of the lower shell 2.

[0092] The first limiting structure can limit the end faces of the upper shell 1 and / or the lower shell 2 in the first direction, restricting the relative movement of the upper shell 1 and the lower shell 2 in the first direction, improving structural reliability, making the upper shell 1 and the lower shell 2 less prone to deformation, and reducing the gap at the joint between the two.

[0093] It should be noted that the first limiting structure can be set only on the end face of the upper shell 1, or only on the end face of the lower shell 2, or simultaneously on both the end faces of the upper shell 1 and the lower shell 2.

[0094] Furthermore, the first limiting structure is a folded structure.

[0095] This folded structure is relatively simple and easy to mold. The folded structure forms a beveled stop, effectively limiting the relative movement of the upper shell 1 and lower shell 2 in the first direction, improving structural reliability and stability. Furthermore, it allows for a closer fit between the upper shell 1 and lower shell 2, reducing assembly gaps and improving the tightness and stability of the connection between them. The folded structure also increases the contact area between the end faces of the upper shell 1 and lower shell 2, improving the reliability of the structural fit, ensuring assembly effectiveness, and reducing the possibility of deformation of the upper shell 1 and lower shell 2. Even after prolonged use, large gaps are less likely to form between the upper shell 1 and lower shell 2, improving the product's durability and aesthetics.

[0096] The folded structure is formed by the contact between the end faces of the upper shell 1 and the lower shell 2. Specifically, the end face of the upper shell 1 has a first stop surface 101 and a second stop surface 102, and correspondingly, the end face of the lower shell 2 has a first stop surface 201 and a second stop surface 202. The first stop surface 101 and the first stop surface 201 of the upper shell have the same shape, and the second stop surface 102 and the second stop surface 202 of the lower shell have the same shape, ensuring that the contact surfaces of the upper shell 1 and the lower shell 2 can be evenly stressed during assembly, avoiding local compression deformation. After the buckle 501 and the slot 502 are engaged, the first stop surface 101 of the upper shell and the first stop surface 201 of the lower shell are in contact, and the second stop surface 102 of the upper shell and the second stop surface 202 of the lower shell are in contact, together forming the folded structure.

[0097] like Figure 3 As shown, the folded structure includes a first mating position 301 and a second mating position 302 connected to each other. In the first direction, the second mating position 302 is positioned closer to the outside than the first mating position 301.

[0098] The first mating position 301 is formed by the contact mating of the first stop surface 101 of the upper shell and the first stop surface 201 of the lower shell, and the second mating position 302 is formed by the contact mating of the second stop surface 102 of the upper shell and the second stop surface 202 of the lower shell.

[0099] During assembly, since the upper shell 1 is located at the top and the lower shell 2 is located at the bottom, the lower shell 2 is more prone to warping and deformation during the assembly process than the upper shell 1. Therefore, the second mating position 302 is inclined towards the lower shell 2 relative to the first mating position 301. The second stop surface 102 of the upper shell can more effectively limit the lower shell 2 in the first direction to prevent the lower shell 2 from warping and deforming.

[0100] Of course, while the folded structure limits the lower shell 2, the upper shell 1 is also limited by the lower shell 2 in the first direction, so that the upper shell 1 and the lower shell 2 cannot move relative to each other in the first direction, thus achieving the purpose of limiting the upper shell 1 and the lower shell 2 at the same time.

[0101] In other embodiments, the second mating position 302 may also be inclined toward the upper shell 1 relative to the first mating position 301 to strengthen the limiting of the upper shell 1.

[0102] Furthermore, the first mating position 301 is set along the first direction, and the second mating position 302 is tilted at an angle α of 30° to 45° relative to the first mating position 301.

[0103] like Figure 3As shown, to facilitate structural processing, the first mating position 301 is arranged along the first direction and horizontally. The second mating position 302 can be inclined at an angle α of 30° to 45° relative to the first mating position 301 toward the lower shell 2, or at an angle α of 30° to 45° away from the lower shell 2, to facilitate the processing and forming of the folded structure and ensure uniform force on the contact surface when the upper shell 1 and the lower shell 2 are assembled. For example, the aforementioned inclination angle α can be 30°, 35°, 40°, 45°, etc. In this embodiment, the second mating position 302 is inclined at an angle α of 30° to 45° relative to the first mating position 301 toward the lower shell 2.

[0104] To further enhance the connection strength between the upper shell 1 and the lower shell 2, adhesive can be applied to the first stop surface 101 of the upper shell and the first stop surface 201 of the lower shell, and the second stop surface 102 of the upper shell and the second stop surface 202 of the lower shell, so as to further increase the connection firmness between the end face of the upper shell 1 and the end face of the lower shell 2.

[0105] Furthermore, the limiting structure includes a second limiting structure, wherein the end face of the upper shell 1 mates with the end face of the lower shell 2, and the second limiting structure is disposed on the end face of the upper shell 1 and the end face of the lower shell 2.

[0106] To enhance the limiting effect on the upper shell 1 and the lower shell 2 in the first direction, the limiting structure also includes a second limiting structure to further restrict the relative movement of the upper shell 1 and the lower shell 2 in the first direction, so that the fit between the two after assembly is better, the assembly gap is reduced, the connection tightness and stability of the mating position of the two are improved, stress concentration is avoided, large deformation of the upper shell 1 and the lower shell 2 is avoided, and large gaps will not appear at the mating surface of the upper shell 1 and the lower shell 2, resulting in better product appearance quality.

[0107] In this embodiment, the second limiting structure includes a limiting protrusion 401 and a limiting groove 402. The limiting protrusion 401 is adapted to be inserted into the limiting groove 402. One of the limiting protrusion 401 and the limiting groove 402 is disposed on the upper shell 1, and the other is disposed on the lower shell 2.

[0108] The second limiting structure includes a limiting protrusion 401 and a limiting groove 402. The limiting protrusion 401 and the limiting groove 402 are inserted into each other. One of the limiting protrusion 401 and the limiting groove 402 is located on the upper shell 1, and the other is located on the lower shell 2. When the buckle 501 is engaged with the buckle groove 502, the limiting protrusion 401 is simultaneously inserted into the limiting groove 402, thereby further limiting the upper shell 1 and the lower shell 2.

[0109] In this embodiment, the limiting protrusion 401 is disposed on the lower shell 2 and is disposed near the slot 502 of the lower shell 2, such as Figure 5 and Figure 9As shown, this design maximizes the use of the installation space. A limiting groove 402 is located on the upper shell 1 and is positioned near the buckle 501 on the upper shell 1, as shown. Figure 7 As shown, the limiting groove 402 and the limiting protrusion 401 are positioned to facilitate their engagement.

[0110] The limiting protrusion 401 is suitable for insertion into the limiting groove 402, which can not only limit the upper shell 1 and the lower shell 2, but also play a certain guiding role, improving the assembly efficiency of the upper shell 1 and the lower shell 2.

[0111] In other embodiments, the limiting protrusion 401 can also be provided on the upper shell 1, and the limiting groove 402 can be provided on the lower shell 2, as long as the limiting protrusion 401 and the limiting groove 402 can be inserted and engaged.

[0112] like Figure 12 As shown, the head assembly also includes an air duct 6, and the upper shell 1 and lower shell 2 are installed with the air duct 6. Two fixing clips 7 are provided on each side of the upper shell 1. Correspondingly, the upper part of the air duct 6 has a corresponding air duct groove. The fixing clips 7 of the upper shell 1 are matched and installed with the air duct groove, thereby realizing the assembly of the upper shell 1 and the air duct 6. Similarly, two fixing clips 7 are also provided on each side of the lower shell 2. Correspondingly, the lower part of the air duct 6 has a corresponding air duct groove. The fixing clips 7 of the lower shell 2 are matched and installed with the air duct groove, thereby realizing the assembly of the lower shell 2 and the air duct 6.

[0113] This embodiment also provides an air outlet device, including the head assembly as described above.

[0114] The air outlet device includes a head assembly and a support rod assembly 8. The head assembly is located on top of the support rod assembly 8 and can swing horizontally back and forth relative to the support rod assembly 8 to achieve the air supply function of the air outlet device. The head assembly contains blades and a motor that drives the blades to rotate, etc., which will not be described in detail here.

[0115] The air outlet device can be a fan or a heater. In this embodiment, the air outlet device is a fan. The upper shell 1 and lower shell 2 of this air outlet device head assembly have a high degree of structural strength and high assembly strength, making them less prone to deformation during and after assembly. Furthermore, the upper shell 1 and lower shell 2 are further restrained in the first direction by a limiting structure, preventing relative movement between them. This ensures a more accurate and evenly distributed fit between the upper shell 1 and lower shell 2, avoiding deformation caused by excessive local pressure, guaranteeing the structural stability of the head assembly, thereby reducing the gap at the mating surfaces of the upper shell 1 and lower shell 2 and improving the product's appearance quality.

[0116] In this embodiment, the head assembly includes an upper shell 1, a lower shell 2, and an air duct 6. The upper shell 1 has several light-transmitting holes. After the head assembly is assembled, there is a space between the upper shell 1 and the air duct 6. The control board of the air outlet device is set in this space. The control board has several LEDs, and the positions of the light-transmitting holes in the upper shell 1 match those of the LEDs.

[0117] The installation process of the air outlet device head assembly in this embodiment will be described below with reference to the accompanying drawings:

[0118] First, the control panel and other structural devices are pre-assembled with the air duct 6;

[0119] Next, align the light-transmitting hole of the upper shell 1 with the LED on the control board, and align the four fixing buckles 7 of the upper shell 1 with the air duct groove at the top of the air duct 6, and fasten the four fixing buckles 7 of the upper shell 1 with the air duct groove in place.

[0120] Then, align the four fixing buckles 7 of the lower shell 2 with the air duct groove at the bottom of the air duct 6, and fasten the four fixing buckles 7 of the lower shell 2 into the air duct groove.

[0121] During this process, the slots 502 at both ends of the lower shell 2 are aligned with the buckles 501 of the upper shell 1. Appropriate external force is applied to press the buckles 501 into the slots 502. At the same time, the limiting protrusions 401 are inserted into the limiting grooves 402, and the first stop surface 101 of the upper shell and the first stop surface 201 of the lower shell, and the second stop surface 102 of the upper shell and the second stop surface 202 of the lower shell are in contact and engaged. Thus, the assembly of the upper shell 1 and the lower shell 2 is completed.

[0122] Further installation of the front and rear grilles for the air outlet unit is possible, specifically:

[0123] After the head assembly is assembled, install the front screen into one side of the air duct, and then rotate the front screen clockwise so that the arrow below the front screen points to the screw hole of the lower shell 2, thus completing the front screen installation; then, install the rear screen into the other side of the air duct, and then rotate the rear screen clockwise so that the arrow below the rear screen points to the screw hole of the lower shell 2, thus completing the rear screen installation.

[0124] In this embodiment, the air outlet device, including the upper shell 1, the lower shell 2, and the air duct 6, is fixed by a total of twelve mounting buckles (including four clips 501 and eight fixing buckles 7). The installation positions of each structure are accurate, and local stress concentration is not likely to occur. The connection strength between the upper shell 1 and the lower shell 2 is high, and the upper shell 1 and the lower shell 2 are not easily deformed. The gap at the mating position between the upper shell 1 and the lower shell 2 is small, resulting in better product sealing and good appearance quality.

[0125] In this embodiment of the air outlet device, when the head assembly expands due to external temperature or deforms due to other external forces, the gap between the upper shell 1 and the lower shell 2 at the mating position remains unchanged. For example, when the head assembly expands due to external temperature, the force generated by the expansion is transferred to the entire upper shell 1 and lower shell 2, causing the shell as a whole to expand outward. A certain gap will be generated between the inner wall of the shell and the outer wall of the air duct 6, thereby transferring the gap change to the interior of the head assembly without affecting the product appearance.

[0126] Through actual assembly and testing, the head assembly of this embodiment significantly improves the strength and stability of the connection between the upper shell 1 and the lower shell 2. After assembly, the connection gap between the upper shell 1 and the lower shell 2 is greatly reduced, making it less prone to deformation under pressure. Even after long-term use, the assembly gap will not increase significantly, resulting in stable and reliable overall machine function and a significantly improved user experience.

[0127] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A head assembly, characterized in that, The fan head assembly, used in air outlet devices, includes: Upper shell (1); Lower shell (2); A connecting structure is provided on the upper shell (1) and the lower shell (2), and the upper shell (1) is connected to the lower shell (2) through the connecting structure; A limiting structure is provided on the upper shell (1) and the lower shell (2) for limiting the upper shell (1) and / or the lower shell (2) in a first direction.

2. The nose assembly of claim 1, wherein, The limiting structure includes a first limiting structure, which is disposed on the end face of the upper shell (1) and / or the end face of the lower shell (2).

3. The head assembly according to claim 2, characterized in that, The first limiting structure is a folded structure.

4. The head assembly according to claim 3, characterized in that, The folded structure includes a first mating position (301) and a second mating position (302) connected to each other. In the first direction, the second mating position (302) is disposed closer to the outside than the first mating position (301).

5. The head assembly according to claim 4, characterized in that, The second mating position (302) is inclined relative to the first mating position (301) toward the upper shell (1) or the lower shell (2).

6. The head assembly according to claim 4, characterized in that, The first mating position (301) is set along the first direction, and the second mating position (302) is tilted at an angle α of 30° to 45° relative to the first mating position (301).

7. The head assembly according to claim 1, characterized in that, The limiting structure includes a second limiting structure, wherein the end face of the upper shell (1) mates with the end face of the lower shell (2), and the second limiting structure is disposed on the upper shell (1) and the lower shell (2).

8. The head assembly according to claim 7, characterized in that, The second limiting structure includes a limiting protrusion (401) and a limiting groove (402). The limiting protrusion (401) is adapted to be inserted into the limiting groove (402). One of the limiting protrusion (401) and the limiting groove (402) is disposed on the upper shell (1), and the other is disposed on the lower shell (2).

9. The head assembly according to any one of claims 1-8, characterized in that, The connection structure includes a buckle (501) and a slot (502). One of the buckle (501) and the slot (502) is disposed at the end of the upper shell (1) and the other is disposed at the end of the lower shell (2). The buckle (501) and the slot (502) engage with each other.

10. The head assembly according to claim 9, characterized in that, The mating contact surface (503) between the buckle (501) and the slot (502) is an arc-shaped surface or a plane.

11. The head assembly according to claim 9, characterized in that, At least a portion of the inner wall of the slot (502) is provided with an elastic element (11).

12. The head assembly according to claim 9, characterized in that, At least two sets of the connecting structures are provided at each end where the upper shell (1) and the lower shell (2) mate.

13. An air outlet device, characterized in that, Includes the nose assembly as described in any one of claims 1-12.

14. The air outlet device according to claim 13, characterized in that, The air outlet device is a fan or a heater.

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