Motor mounting shell, driving structure and electrical equipment

Abstract

The utility model relates to a motor mounting shell, a driving structure and electrical equipment, and the motor mounting shell comprises a shell side wall which is formed by extending a shell top wall from the edge of the shell top wall in the same direction, and the shell side wall surrounds the shell top wall in the circumferential direction so as to form a motor accommodating cavity together with the shell top wall. The top wall of the shell is provided with a top heat dissipation opening communicating with the motor containing cavity and the external atmosphere, and the side wall of the shell is provided with a front heat dissipation opening communicating with the motor containing cavity and the external atmosphere. The side wall of the shell is further provided with at least one side heat dissipation opening, and the side heat dissipation opening communicates with the motor containing cavity and the external atmosphere. Compared with the prior art that only the top and the front part of the motor mounting shell are provided with the heat dissipation ports, the motor mounting shell provided by the utility model is provided with the heat dissipation ports at the top, the front part and the side part, so that the heat dissipation area is increased, the heat dissipation capability of the motor mounting shell is enhanced, and the heat dissipation efficiency is improved on the premise that the cost, the power and the noise of the motor are not increased. And the temperature of the motor is effectively reduced.

Description

Technical Field

[0001] This application relates to the field of electrical equipment technology, and in particular to a motor mounting housing, drive structure, and electrical equipment. Background Technology

[0002] With social progress and technological development, various household appliances are widely used in people's lives. These appliances have different functions, effectively improving people's quality of life and bringing great convenience. The motor, as a core component in many household appliances, plays a crucial role in their performance.

[0003] As people's demands for home appliances gradually increase, so too do their requirements for motor performance. At the same time, in order to control the production costs of home appliances, the material costs of motors are further compressed. This leads to a reduction in the number of structural components that determine the core performance of the motor. To achieve the target performance, motor power and heat generation are significantly increased, resulting in excessive motor temperature rise and placing higher demands on the motor's heat dissipation capabilities. However, with the increasing complexity of the internal structure of home appliances and the growing number of internal electrical components, the motor's heat dissipation capacity is further deteriorated. Utility Model Content

[0004] Therefore, it is necessary to provide a motor mounting housing, drive structure, and electrical equipment to address the problem of poor motor heat dissipation.

[0005] A motor mounting housing includes a housing top wall extending in the same direction from the edge of the housing top wall to form a housing side wall, the housing side wall surrounding the housing top wall circumferentially to form a motor receiving cavity together with the housing top wall, the housing top wall having a top heat dissipation vent communicating with the motor receiving cavity and the external atmosphere, and the housing side wall having a front heat dissipation vent communicating with the motor receiving cavity and the external atmosphere;

[0006] The housing sidewall is also provided with at least one side heat dissipation vent, which connects the motor housing cavity to the outside atmosphere.

[0007] In one embodiment, the side heat dissipation vent is located on the side of the housing sidewall that connects to the housing top wall.

[0008] In one embodiment, the housing sidewall has two side heat dissipation vents, which are located at intervals on opposite sides of the front heat dissipation vent.

[0009] In one embodiment, the housing sidewall includes a front wall, a rear wall, a left side wall, and a right side wall. The front wall and the rear wall are spaced apart in a first direction, and the left side wall and the right side wall are spaced apart in a second direction perpendicular to the first direction and connected between the front wall and the rear wall.

[0010] The front heat dissipation vent is located on the front wall, and the two side heat dissipation vents are located on the left and right sides of the front wall, respectively.

[0011] A drive structure includes the aforementioned motor mounting housing, and the drive structure further includes a motor, which is housed within the motor receiving cavity of the motor mounting housing.

[0012] In one embodiment, a top heat dissipation space is formed between one end wall of the motor and the top wall of the housing, and the top heat dissipation port and the side heat dissipation port are respectively connected to the top heat dissipation space.

[0013] In one embodiment, the motor has a plurality of heat dissipation holes on one end wall facing the top wall of the housing, and all the heat dissipation holes are projected onto the motor around the edge of the top heat dissipation port.

[0014] An electrical device includes the aforementioned drive structure. The electrical device includes a main body, the drive structure is disposed at one end of the main body, and the side heat dissipation vent is connected to the main body.

[0015] In one embodiment, the main body includes an air duct assembly and a housing covering the air duct assembly, and the side heat dissipation vent communicates the gap between the air duct assembly and the housing.

[0016] In one embodiment, the electrical device is a tower fan.

[0017] In one embodiment,

[0018] The aforementioned motor mounting housing houses the motor within a motor housing cavity. During operation, some of the heat generated by the motor escapes through a top vent, another portion through a front vent, and a third through a side vent. Compared to existing motor mounting housings that only have vents at the top and front, the motor mounting housing in this application has vents at the top, front, and sides, thereby increasing the heat dissipation area and enhancing the heat dissipation capacity. Without increasing motor cost, power, or noise, it effectively reduces the motor temperature, thus preventing excessive temperature from affecting motor performance. Attached Figure Description

[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of an electrical device according to an embodiment of this application.

[0022] Figure 2 This is a cross-sectional schematic diagram of an electrical device according to an embodiment of this application.

[0023] Figure 3 This is a schematic diagram of the structure of a motor mounting housing according to an embodiment of this application.

[0024] Figure 4 for Figure 3 The diagram shows another angle of the motor mounting housing.

[0025] Figure 5 This is a schematic diagram of the assembly of the motor mounting housing and the motor according to an embodiment of this application.

[0026] Figure 6 This is a front view of a portion of the structure of an electrical device according to an embodiment of this application.

[0027] Figure 7 for Figure 6 The electrical equipment shown is shown on the left.

[0028] Figure 8 for Figure 6 The electrical equipment shown is shown on the right.

[0029] Figure 9 for Figure 6 The diagram shows the AA cross-section of the electrical equipment.

[0030] Figure 10 for Figure 9 The BB cross-sectional view of the electrical device shown.

[0031] Explanation of reference numerals in the attached figures:

[0032] 100. Electrical equipment; 20. Main body; 21. Housing; 23. Air duct assembly; 25. Cross-flow fan; 40. Drive structure; 41. Motor mounting housing; 41a. Motor housing cavity; 412. Top wall of housing; 412a. Top heat dissipation vent; 414a. Front heat dissipation vent; 414b. Side heat dissipation vent; 4141. Front wall; 4143. Rear wall; 4145. Left side wall; 4147. Right side wall; 416. Screw post; 418. Reinforcing rib; 43. Motor. Detailed Implementation

[0033] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0034] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0035] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0036] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0037] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0038] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0039] See Figure 1 and Figure 2 This application provides an electrical device 100 with a drive structure 40. The following description uses a tower fan as an example to illustrate the construction of the drive structure 40. This embodiment is merely illustrative and does not limit the technical scope of this application. It is understood that in other embodiments, the electrical device 100 may also be other devices equipped with the drive structure 40, which are not limited here.

[0040] The electrical device 100 includes a main body 20 and a drive structure 40 located at one end of the main body 20. When the electrical device 100 is placed on the ground, the drive structure 40 is located at the bottom of the main body 20. The main body 20 includes a housing 21, an air duct assembly 23, and a cross-flow fan 25. The three are coaxially arranged, with the air duct assembly 23 located between the cross-flow fan 25 and the housing 21. The cross-flow fan 25 is driven by the drive structure 40 to rotate relative to the air duct assembly 23, thereby generating a directional airflow to cool the external environment. It is understood that the specific structure of the main body 20 is not limited to this and can be configured as needed.

[0041] like Figures 3 to 5 As shown, the drive structure 40 includes a motor mounting housing 41 and a motor 43. The motor mounting housing 41 is a hollow shell structure, including a housing top wall 412 extending from the edge of the housing top wall 412 in the same direction to form a housing side wall. The housing side wall surrounds the housing top wall 412 circumferentially to form a motor receiving cavity 41a together with the housing top wall 412, and the motor 43 is housed in the motor receiving cavity 41a.

[0042] As described in the background section, the heat dissipation capacity of an electric motor is related to the overall performance of electrical equipment, and existing solutions for motor heat dissipation can be roughly divided into the following three types.

[0043] The first method is active cooling, such as adding cooling fins inside the motor. When the motor shaft rotates, it drives the fins to rotate synchronously, converting the motor's kinetic energy into wind energy to carry away the heat. Alternatively, a cooling device, such as a cooling fan, can be placed near the motor to remove the heat generated by the motor. However, the installation of cooling fins and cooling fans significantly increases material costs and energy consumption, and also raises the risk of noise pollution.

[0044] The second type is passive cooling, which provides as much space as possible for the motor to dissipate heat in the structure. The motor achieves cooling by radiating heat itself. Although this solution does not increase production costs, the heat dissipation effect depends heavily on the external structure of the motor, so it cannot guarantee a good heat dissipation effect.

[0045] The third method is to optimize the motor structure, such as the thickness of the silicon steel sheets in the motor, so that the heat generated by the motor is reduced under the same load and output power. However, this method significantly increases the manufacturing cost of the motor.

[0046] Therefore, while the existing solutions for motor heat dissipation have improved the heat dissipation effect to some extent, they also lead to further increases in cost, and may even increase energy consumption and generate noise.

[0047] For the above technical issues, please refer to [link / reference]. Figures 3 to 5The motor mounting housing 41 of this application has a top heat dissipation vent 412a on its top wall 412, which is used to connect the motor housing 41a with the external atmosphere. The housing side wall has a front heat dissipation vent 414a, which is used to connect the motor housing 41a with the external atmosphere. The housing side wall also has at least one side heat dissipation vent 414b that connects the motor housing 41a.

[0048] Thus, the motor 43 is housed within the motor housing cavity 41a. During operation, some of the heat generated by the motor 43 flows out of the motor housing cavity 41a through the top heat dissipation vent 412a, some through the front heat dissipation vent 414a, and some through the side heat dissipation vent 414b. Compared to existing motor mounting housings 41 which only have heat dissipation vents at the top and front, the motor mounting housing 41 in this application has heat dissipation vents at the top, front, and sides, thereby maximizing the heat dissipation area and enhancing the heat dissipation capacity of the motor mounting housing 41. Without increasing the cost, power, or noise of the motor 43, it effectively reduces the temperature of the motor 43, thus preventing the performance of the motor 43 from being affected by excessively high temperatures.

[0049] Specifically, such as Figure 6 As shown, the top heat dissipation vent 412a and the front heat dissipation vent 414a are directly connected to the external environment, so the heat flowing out from the top heat dissipation vent 412a and the front heat dissipation vent 414a directly enters the external environment. Figures 7 to 10 As shown, the side heat dissipation vent 414b connects to the main body 20 but is not directly connected to the external environment. Therefore, the heat flowing out from the side heat dissipation vent 414b enters the main body 20 for heat dissipation through the lower temperature of the main body 20. Specifically, in one embodiment, the side heat dissipation vent 414b connects to the gap between the ventilation duct assembly 23 and the outer casing 21.

[0050] In other words, in this application, part of the heat generated by the motor 43 directly enters the external environment, while the other part is dissipated through the main body 20. The two heat dissipation methods work together to achieve a good heat dissipation effect. Furthermore, in some embodiments, the front heat dissipation vent 414a plays the main heat dissipation role, with most of the heat generated by the motor 43 flowing directly into the external environment through the front heat dissipation vent 414a. The side heat dissipation vent 414b plays an auxiliary heat dissipation role. When the cooling limit is reached by dissipating heat outward through the front heat dissipation vent 414a, dissipating heat into the main body 20 through the side heat dissipation vent 414b can further reduce the temperature of the motor 43.

[0051] Please refer to the previous document. Figures 3 to 5Since hot air rises due to its lower density, as a preferred embodiment, the side heat dissipation vent 414b is located on the side of the housing sidewall connected to the housing top wall 412. Therefore, the heat generated by the motor 43 flows upward toward the housing top wall 412 and then flows out through the top heat dissipation vent 412a and the side heat dissipation vent 414b, thereby forming a chimney effect that allows the low-temperature air from outside to continuously enter the motor housing cavity 41a.

[0052] Furthermore, in some embodiments, two side heat dissipation vents 414b are provided on the side wall of the housing. The two side heat dissipation vents 414b are respectively located on opposite sides of the front heat dissipation vent 414a at a distance, so that the heat generated by the motor 43 can flow out from the two side heat dissipation vents 414b simultaneously. It is understood that the number and arrangement of the side heat dissipation vents 414b are not limited to this, and can be set according to factors such as the shape of the motor mounting housing 41 and the main body 20 to meet different heat dissipation requirements.

[0053] In the following embodiments, the width direction of the motor mounting housing 41 is defined as the first direction (i.e., Figure 3 The X direction in the middle), the length direction of the motor mounting housing 41 is the second direction (i.e., Figure 3 The Y direction in the motor mounting housing 41 is the height direction of the third direction (i.e., the height direction of the motor mounting housing 41 is the third direction). Figure 3 In the Z direction), the first direction, the second direction, and the third direction intersect each other, and in a preferred embodiment, the first direction, the second direction, and the third direction are perpendicular to each other.

[0054] Please continue reading. Figures 3 to 5 A top heat dissipation space is formed between the top wall 412 of the housing and one end wall of the motor 43. A circular top heat dissipation vent 412a is provided at the center of the top wall 412 of the housing. Thus, the top heat dissipation vent 412a and the side heat dissipation vent 414b are respectively connected to the top heat dissipation space. The heat generated by the motor 43 flows upward into the top heat dissipation space and then flows out from the top heat dissipation vent 412a and the side heat dissipation vent 414b.

[0055] Furthermore, the top wall 412 of the housing, facing the motor receiving cavity 41a, has multiple screw posts 416 and multiple reinforcing ribs 418 protruding in the third direction. All the screw posts 416 are arranged circumferentially around the top heat dissipation vent 412a. Each reinforcing rib 418 connects two adjacent screw posts 416 to increase the structural strength of the screw posts 416. The motor 43 can be fixed to the screw posts 416 with screws. It is understood that the fixing method of the motor 43 is not limited to this and can be set as needed to meet different requirements. As a preferred embodiment, the reinforcing ribs 418 may have notches that allow airflow to pass through, thereby reducing the flow resistance of hot air.

[0056] In some embodiments, the motor 43 has multiple heat dissipation holes on one end wall facing the top wall 412 of the housing, and all the heat dissipation holes are arranged around the orthographic projection of the edge of the top heat dissipation opening 412a onto the motor 43. That is, all the heat dissipation holes are arranged around the central axis of the motor 43 to form a circular area, the diameter of the top heat dissipation opening 412a is smaller than the diameter of the aforementioned circular area, and the orthographic projection of the edge of the top heat dissipation opening 412a onto the motor 43 lies within the circular area. Therefore, water droplets dripping from the main body 20 can be prevented from entering the heat dissipation holes of the motor 43. It is understood that the shape, number, and position of the top heat dissipation holes can be set as needed to meet different heat dissipation requirements.

[0057] In some embodiments, to prevent the cross-flow fan 25 from shaking during high-speed operation, thereby causing the main body 20 to shake or produce noise, the bottom of the cross-flow fan 25 is provided with a flexible material such as rubber. When the entire unit is dropped, under the enormous inertia, the cross-flow fan 25 will sink as a whole. Because the bottom of the cross-flow fan 25 is provided with a flexible material, the cross-flow fan 25 will deform downwards, which may lead to a risk that the top of the cross-flow fan 25 will come out of the mounting hole.

[0058] To address the aforementioned issues, the distance h between the top wall 412 of the motor mounting housing 41 and the bottom of the cross-flow fan 25 is set to 4.6 mm (e.g., ...). Figure 1 As shown, this design serves two purposes: firstly, it limits the movement of the cross-flow fan 25 during a drop, preventing its top from detaching; secondly, it maximizes the distance between the top wall 412 of the housing and the motor 43, indirectly strengthening the distance between the side wall of the housing and the motor 43, thereby further improving heat dissipation. It is understood that the specific value of the distance h between the top wall 412 of the motor mounting housing 41 and the bottom of the cross-flow fan 25 is not limited to this and can be set as needed to meet different requirements.

[0059] like Figures 3 to 5 As shown, the shell sidewalls include a front wall 4141, a rear wall 4143, a left side wall 4145, and a right side wall 4147. The front wall 4141, left side wall 4145, rear wall 4143, and right side wall 4147 are connected sequentially end-to-end. The front wall 4141 and rear wall 4143 are spaced apart in a first direction, while the left side wall 4145 and right side wall 4147 are spaced apart in a second direction and connected between the front wall 4141 and rear wall 4143. Due to waterproofing requirements, the rear wall 4143 does not have a heat dissipation vent. A front heat dissipation vent 414a is located on the front wall 4141, and two side heat dissipation vents 414b are located on the side of the left side wall 4145 and right side wall 4147 closest to the front wall 4141, respectively.

[0060] Furthermore, the front heat dissipation vent 414a includes multiple heat dissipation holes, all of which are spaced apart on the front wall 4141, providing a large heat dissipation area while meeting strength and protection requirements. Because the front heat dissipation vent 414a has a large heat dissipation area and is directly connected to the outside atmosphere, it plays a primary role in heat dissipation. It is understood that the shape, number, and arrangement of the heat dissipation holes are not limited and can be configured as needed to meet different heat dissipation requirements.

[0061] The aforementioned motor mounting housing 41, drive structure 40, and electrical equipment 100, based on maximizing the top heat dissipation space of the motor mounting housing 41, simultaneously incorporate a top heat dissipation vent 412a, a front heat dissipation vent 414a, and a side heat dissipation vent 414b on the motor mounting housing 41 to form a three-dimensional heat dissipation structure. While utilizing outside air for direct heat dissipation, the lower-temperature main body 20 is used for auxiliary heat dissipation, thereby maximizing the heat dissipation speed of the motor 43. Without increasing the cost of the motor 43 or the overall cost, noise, and power of the electrical equipment 100, the heat dissipation capacity of the electrical equipment 100 is enhanced, further improving the performance of the motor 43 and ultimately improving the overall performance of the electrical equipment 100.

[0062] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0063] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A motor mounting housing, characterized in that, The housing includes a housing top wall (412) extending in the same direction from the edge of the housing top wall (412) to form a housing side wall. The housing side wall surrounds the housing top wall (412) circumferentially to form a motor receiving cavity (41a) together with the housing top wall (412). The housing top wall (412) has a top heat dissipation vent (412a) that connects the motor receiving cavity (41a) with the external atmosphere. The housing side wall has a front heat dissipation vent (414a) that connects the motor receiving cavity (41a) with the external atmosphere. The housing sidewall is also provided with at least one side heat dissipation port (414b) that connects to the motor receiving cavity (41a).

2. The motor mounting housing according to claim 1, characterized in that, The side heat dissipation vent (414b) is located on the side of the housing sidewall that connects to the housing top wall (412).

3. The motor mounting housing according to claim 1, characterized in that, The side wall of the housing has two side heat dissipation vents (414b), which are located on opposite sides of the front heat dissipation vent (414a) at intervals.

4. The motor mounting housing according to claim 3, characterized in that, The housing sidewalls include a front wall (4141), a rear wall (4143), a left side wall (4145), and a right side wall (4147). The front wall (4141) and the rear wall (4143) are spaced apart in a first direction. The left side wall (4145) and the right side wall (4147) are spaced apart in a second direction perpendicular to the first direction and connected between the front wall (4141) and the rear wall (4143). The front heat dissipation vent (414a) is located on the front wall (4141), and the two side heat dissipation vents (414b) are located on the left side wall (4145) and the right side wall (4147) respectively, on the side close to the front wall (4141).

5. A driving structure (40), characterized in that, Including the motor mounting housing as described in any one of claims 1 to 4, the drive structure (40) further includes a motor (43) housed within the motor receiving cavity (41a) of the motor mounting housing.

6. The driving structure (40) according to claim 5, characterized in that, A top heat dissipation space is formed between one end wall of the motor (43) and the top wall (412) of the housing. The top heat dissipation port (412a) and the side heat dissipation port (414b) are respectively connected to the top heat dissipation space.

7. The driving structure (40) according to claim 6, characterized in that, The motor (43) has multiple heat dissipation holes on one end wall facing the top wall (412) of the housing. All the heat dissipation holes are projected onto the motor (43) around the edge of the top heat dissipation port (412a).

8. An electrical appliance, characterized in that, The electrical device includes a drive structure (40) as described in any one of claims 5 to 7, the electrical device includes a main body (20), the drive structure (40) is disposed at one end of the main body (20), and the side heat dissipation vent (414b) is connected to the main body (20).

9. The electrical equipment according to claim 8, characterized in that, The main body (20) includes a duct assembly (23) and a housing (21) covering the duct assembly (23). The side heat dissipation vent (414b) connects the gap between the duct assembly (23) and the housing (21).

10. The electrical equipment according to claim 8, characterized in that, The electrical equipment is a tower fan.

Images