Fan shell and cross-flow fan

Abstract

The invention discloses a fan shell and a cross-flow fan, the fan shell is applied to the cross-flow fan, the fan shell comprises a first end wall, a second end wall, a first side wall and a second side wall, and the first end wall and the second end wall are oppositely arranged; the first side wall and the second side wall are oppositely arranged; the first end wall is connected with the first side wall and the second side wall, and the second end wall is connected with the first side wall and the second side wall; the first end wall, the second end wall, the first side wall and the second side wall define an air inlet and an air outlet which are oppositely arranged and communicate with each other. One side, corresponding to the air inlet, of the first side wall protrudes out of the first end wall and the second end wall to form a first drainage part; the side, corresponding to the air outlet, of the second side wall protrudes out of the first end wall and the second end wall to form a second drainage part.

Description

Technical Field

[0001] The present application relates to the technical field of electronic products, and more specifically, to a fan housing and a cross-flow fan. Background Art

[0002] Crossflow fans are tower-shaped or cylindrical fans. Due to their low noise, compact structure, and high efficiency, they are widely used in household appliances and industrial equipment. However, existing crossflow fans still require improvement. For example, the fan housing is often structurally simple, which prevents air from flowing smoothly when entering and exiting the fan housing, easily causing turbulence and eddy currents. This reduces air flow efficiency, increases energy loss, and generates considerable noise, affecting the user experience.

[0003] In view of this, it is necessary to propose a new technical solution to solve the above technical problems. Summary of the Invention

[0004] One purpose of the present application is to provide a new technical solution for a fan housing and a cross-flow fan.

[0005] According to a first aspect of the present application, a fan housing is provided, wherein the fan housing is applied to a cross-flow fan, and the fan housing comprises: a first end wall and a second end wall, wherein the first end wall is disposed opposite to the second end wall; a first side wall and a second side wall, wherein the first side wall is arranged opposite to the second side wall; The first end wall is connected to the first side wall and the second side wall, and the second end wall is connected to the first side wall and the second side wall; the first end wall, the second end wall, the first side wall and the second side wall enclose an air inlet and an air outlet that are oppositely arranged and interconnected; The first side wall is provided on a side corresponding to the air inlet so as to protrude from the first end wall and the second end wall to form a first drainage portion; The second side wall is arranged to protrude from the first end wall and the second end wall on a side corresponding to the air outlet to form a second air guide portion.

[0006] Optionally, the cross-section of the first side wall and the cross-section of the second side wall are both arc-shaped.

[0007] Optionally, the cross-section of the first side wall and the cross-section of the second side wall are arc-shaped and distributed on the same circumference.

[0008] Optionally, the cross-section of the first guide portion is arc-shaped, and the first side wall extends along its own trajectory on a side corresponding to the air inlet to form the first guide portion; and / or, The cross section of the second air guide portion is arc-shaped, and the second side wall extends along its own trajectory on a side corresponding to the air outlet to form the second air guide portion.

[0009] Optionally, the cross-section of the first drainage portion is linear, and / or the cross-section of the second drainage portion is linear.

[0010] Optionally, the angle between the cross section of the first drainage portion and the vertical direction is -60°~60°, and / or the angle between the cross section of the second drainage portion and the vertical direction is -60°~60°.

[0011] Optionally, the fan housing further includes a first connecting ear and a second connecting ear, the first connecting ear being connected to the first end wall, and the second connecting ear being connected to the second end wall; The first connecting ear is provided with a first mounting hole, and the second connecting ear is provided with a second mounting hole. The first mounting hole and the second mounting hole are used to insert fasteners to mount the fan housing on the equipment used by the cross-flow fan.

[0012] According to a second aspect of the present application, a cross-flow fan is provided, comprising the fan housing as described in the first aspect.

[0013] Optionally, the cross-flow fan further comprises a fan body, wherein the fan body is disposed in the fan housing and mounted on the first end wall and the second end wall; The fan body is spaced apart from the first side wall and the second side wall. A guide groove is formed between the fan body, the first side wall and the second side wall. The guide groove is communicated with the air inlet and the air outlet.

[0014] Optionally, the cross-section of the first side wall and the cross-section of the second side wall are arc-shaped and distributed on the same circumference; the cross-section of the guide groove is arc-shaped.

[0015] In the fan housing provided in the embodiment of the present application, the provision of the first guide portion and the second guide portion helps to guide the entry and exit of airflow, thereby improving the flow efficiency of the airflow and further improving the working efficiency of the cross-flow fan used in the fan housing.

[0016] Other features and advantages of the present application will become apparent from the following detailed description of exemplary embodiments of the present application with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the application and, together with the description, serve to explain the principles of the application.

[0018] Figure 1 The fan housing of the embodiment of the present application is shown as a schematic diagram Figure 1 ; Figure 2 The fan housing of the embodiment of the present application is shown as a schematic diagram Figure 2 ; Figure 3 The fan housing of the embodiment of the present application is shown as a schematic diagram Figure 3 ; Figure 4 Shown is a schematic structural diagram of a cross-flow fan according to an embodiment of the present application.

[0019] Description of reference numerals: 1. Cross-flow fan; 11. Fan housing; 111. First end wall; 112. Second end wall; 113. First side wall; 114. Second side wall; 1101. Air inlet; 1102. Air outlet; 1103. Guide groove; 1130. First air guide portion; 1140. Second air guide portion; 115. First connecting ear; 1150. First mounting hole; 116. Second connecting ear; 1160. Second mounting hole; 12. Fan body. DETAILED DESCRIPTION

[0020] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application.

[0021] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present disclosure, its application, or uses.

[0022] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0023] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0024] It should be noted that like reference numerals and letters refer to like items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0025] Reference Figure 1-Figure 4As shown, according to one embodiment of the present application, a fan housing 11 is provided, which is applied to a cross-flow fan 1. The fan housing 11 includes a first end wall 111, a second end wall 112, a first side wall 113, and a second side wall 114. The first end wall 111 is arranged opposite to the second end wall 112; the first side wall 113 is arranged opposite to the second side wall 114; the first end wall 111 is connected to the first side wall 113 and the second side wall 114, and the second end wall 112 is connected to the first side wall 113 and the second side wall 114; the first end wall 111, the second end wall 112, the first side wall 113, and the second side wall 114 enclose an air inlet 1101 and an air outlet 1102 that are opposite to each other and communicate with each other. The first side wall 113 is provided on a side corresponding to the air inlet 1101 and protrudes from the first end wall 111 and the second end wall 112 to form a first guide portion 1130; The second side wall 114 is provided to protrude from the first end wall 111 and the second end wall 112 at a side corresponding to the air outlet 1102 to form a second air guide portion 1140 .

[0026] The fan housing 11 provided in the embodiment of the present application is generally in the shape of a long cylinder with openings on both sides; it includes a first end wall 111, a second end wall 112, a first side wall 113 and a second side wall 114, wherein the first end wall 111 and the second end wall 112 are arranged opposite to each other, and the first side wall 113 and the second side wall 114 are arranged opposite to each other; the first end wall 111, the second end wall 112, the first side wall 113 and the second side wall 114 are enclosed to form a accommodating space, and one side of the accommodating space is an air inlet 1101 and the other side is an air outlet 1102; a connecting structure for air flow to pass through is formed from the air inlet 1101 to the air outlet 1102.

[0027] The first side wall 113 is provided on the side corresponding to the air inlet 1101 and protrudes from the first end wall 111 and the second end wall 112, and the protruding structure in the first side wall 113 forms a first guide portion 1130; the second side wall 114 is provided on the side corresponding to the air outlet 1102 and protrudes from the first end wall 111 and the second end wall 112, and the protruding structure in the second side wall 114 forms a second guide portion 1140; the setting of the first guide portion 1130 helps to guide the airflow into the accommodating space, and the setting of the second guide portion 1140 helps to guide the airflow out of the accommodating space, thereby optimizing the effect of airflow entry and exhaust, improving the flow efficiency of the airflow, and thereby improving the working efficiency of the cross-flow fan used in the fan housing 11.

[0028] Reference Figures 1 to 3As shown, in one embodiment, the cross-sections of the first side wall 113 and the second side wall 114 are both arc-shaped.

[0029] In this specific example, the first side wall 113 and the second side wall 114 are both structures with an arc-shaped cross-section. After the airflow enters the accommodating space from the air inlet 1101, it flows along the inner side surface of the first side wall 113 and the inner side surface of the second side wall 114. Since the inner side surface of the first side wall 113 and the inner side surface of the second side wall 114 are both arc surfaces, the resistance encountered by the airflow during flow can be reduced, allowing the airflow to pass through the fan housing 11 more smoothly, thereby improving the overall performance of the cross-flow fan used in the fan housing 11.

[0030] Reference Figures 1 to 3 As shown, in one embodiment, the cross-section of the first side wall 113 and the cross-section of the second side wall 114 are arc-shaped and distributed on the same circumference.

[0031] In this specific example, the cross-section of the first side wall 113 and the cross-section of the second side wall 114 are both arc-shaped and distributed on the same circumference; this makes the internal space of the fan housing 11 more regular, helps to maintain the stability and uniformity of the airflow in the fan housing 11, reduces the generation of turbulence and noise, and improves the working efficiency of the cross-flow fan.

[0032] Reference Figures 1 to 3 As shown, in one embodiment, the cross-section of the first guide portion 1130 is arc-shaped, and the first side wall 113 extends along its own trajectory on the side corresponding to the air inlet 1101 to form the first guide portion 1130; the cross-section of the second guide portion 1140 is arc-shaped, and the second side wall 114 extends along its own trajectory on the side corresponding to the air outlet 1102 to form the second guide portion 1140.

[0033] In this specific example, the first air guide portion 1130 and the second air guide portion 1140 are structures with an arc-shaped cross-section, and the first air guide portion 1130 and the second air guide portion 1140 are formed by extending along the corresponding side wall's own trajectory; in this way, the manufacturing process of the first air guide portion 1130 and the second air guide portion 1140 is relatively simple, and can enable the airflow to smoothly transition when entering and exhausting the fan housing, reduce energy loss, and improve the efficiency of the cross-flow fan.

[0034] In one embodiment, the cross section of the first drainage portion 1130 is linear, and / or the cross section of the second drainage portion 1140 is linear.

[0035] In this specific example, the cross-section of the first drainage portion 1130 and / or the cross-section of the second drainage portion 1140 is linear. The linear drainage portion is more suitable in certain specific application scenarios, such as when a more compact structure or specific airflow guidance is required.

[0036] Optionally, both the first and second air guide portions 1130, 1140 may have an arcuate cross-section; or both the first and second air guide portions 1130, 1140 may have a linear cross-section; or one of the first and second air guide portions 1130, 1140 may have an arcuate cross-section and the other may have a linear cross-section. The above shape combinations can be selected based on the application scenario, usage requirements, and the device in which the cross-flow fan is used.

[0037] In one embodiment, the angle between the cross section of the first drainage portion 1130 and the vertical direction is -60° to 60°, and / or the angle between the cross section of the second drainage portion 1140 and the vertical direction is -60° to 60°.

[0038] In this specific example, when the cross section of the first drainage portion 1130 is linear, the angle between the cross section of the first drainage portion 1130 and the vertical direction is -60°~60°. For example, the cross section of the first drainage portion 1130 is inclined toward the outside at a positive angle relative to the vertical direction, and is inclined toward the inside at a negative angle.

[0039] Similarly, when the cross section of the second drainage portion 1140 is linear, the angle between the cross section of the second drainage portion 1140 and the vertical direction is -60°~60°. For example, the cross section of the second drainage portion 1140 is inclined toward the outside at a positive angle relative to the vertical direction, and is inclined toward the inside at a negative angle.

[0040] The angle between the cross section of the first guide portion 1130 and the vertical direction and the angle between the cross section of the second guide portion 1140 and the vertical direction are set to -60°~60°. This helps to optimize the direction and speed of the airflow, effectively guiding the airflow without causing poor airflow guidance effects or other adverse effects such as airflow turbulence and increased resistance due to excessively large or small angles. This improves the performance of the cross-flow fan in specific application scenarios.

[0041] The angle between the cross section of the first drainage portion 1130 and the vertical direction and the angle between the cross section of the second drainage portion 1140 and the vertical direction can be specifically set according to different airflow requirements.

[0042] Reference Figures 1 to 3As shown, in one embodiment, the fan housing further includes a first connecting ear 115 and a second connecting ear 116, wherein the first connecting ear 115 is connected to the first end wall 111, and the second connecting ear 116 is connected to the second end wall 112; The first connecting ear 115 defines a first mounting hole 1150 , and the second connecting ear 116 defines a second mounting hole 1160 . The first mounting hole 1150 and the second mounting hole 1160 are used to insert fasteners to install the fan housing 11 on equipment used by the cross-flow fan.

[0043] In this specific example, first end wall 111 is connected to first connecting ear 115, e.g., they are integrally formed. Second end wall 112 is connected to second connecting ear 116, e.g., they are integrally formed. First mounting hole 1150 defined in first connecting ear 115 and second mounting hole 1160 defined in second connecting ear 116 facilitate removable mounting of the cross-flow fan within the device using fasteners.

[0044] Reference Figure 4 As shown, according to another embodiment of the present application, a cross-flow fan 1 is provided, and the cross-flow fan 1 includes the fan housing 11 as described above.

[0045] Since the cross-flow fan 1 provided in the embodiment of the present application includes the above-mentioned fan housing 11, the airflow flowing therein is more efficient, so that the cross-flow fan 1 can achieve higher working efficiency.

[0046] Reference Figure 4 As shown, in one embodiment, the cross-flow fan further includes a fan body 12 , which is disposed in the fan housing 11 and mounted on the first end wall 111 and the second end wall 112 ; The fan body 12 is spaced apart from the first side wall 113 and the second side wall 114 . A guide groove 1103 is formed between the fan body 12 and the first side wall 113 and the second side wall 114 . The guide groove 1103 is connected to the air inlet 1101 and the air outlet 1102 .

[0047] In this specific example, the fan body 12 is connected to the first end wall 111 and the second end wall 112, and a guide groove 1103 is formed between the fan body 12 and the first side wall 113 and the second side wall 114; the guide groove 1103 enables the airflow to flow more smoothly in the fan casing, further improving the working efficiency of the cross-flow fan.

[0048] Reference Figure 4As shown, in one embodiment, the cross-section of the first side wall 113 and the cross-section of the second side wall 114 are arc-shaped and distributed on the same circumference; the cross-section of the guide groove 1103 is also arc-shaped.

[0049] In this specific example, the cross-section of the guide groove 1103 is arc-shaped, which is conducive to ensuring the stability and smoothness of the airflow in the fan housing, reducing the generation of turbulence and noise, and improving the working efficiency of the cross-flow fan.

[0050] Although some specific embodiments of the present application have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present application. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

Claims

1. A fan housing, characterized in that: The fan housing (11) is applied to a cross-flow fan (1), and the fan housing (11) comprises: a first end wall (111) and a second end wall (112), wherein the first end wall (111) and the second end wall (112) are arranged opposite to each other; a first side wall (113) and a second side wall (114), wherein the first side wall (113) and the second side wall (114) are arranged opposite to each other; The first end wall (111) is connected to the first side wall (113) and the second side wall (114), and the second end wall (112) is connected to the first side wall (113) and the second side wall (114); the first end wall (111), the second end wall (112), the first side wall (113) and the second side wall (114) enclose an air inlet (1101) and an air outlet (1102) that are oppositely arranged and communicate with each other; The first side wall (113) is provided on a side corresponding to the air inlet (1101) and protrudes from the first end wall (111) and the second end wall (112) to form a first drainage portion (1130); The second side wall (114) is arranged to protrude from the first end wall (111) and the second end wall (112) on a side corresponding to the air outlet (1102) to form a second drainage portion (1140).

2. The fan housing according to claim 1, wherein: The cross-section of the first side wall (113) and the cross-section of the second side wall (114) are both arc-shaped.

3. The fan housing according to claim 2, wherein: The cross-section of the first side wall (113) and the cross-section of the second side wall (114) are arc-shaped and distributed on the same circumference.

4. The fan housing according to claim 2, wherein: The cross section of the first drainage portion (1130) is arc-shaped, and the first side wall (113) extends along its own trajectory on a side corresponding to the air inlet (1101) to form the first drainage portion (1130); and / or, The cross-section of the second air guide portion (1140) is arc-shaped, and the second side wall (114) extends along its own trajectory on a side corresponding to the air outlet (1102) to form the second air guide portion (1140).

5. The fan housing according to claim 2, wherein: The cross section of the first drainage portion (1130) is linear, and / or the cross section of the second drainage portion (1140) is linear.

6. The fan housing according to claim 5, characterized in that The angle between the cross section of the first drainage portion (1130) and the vertical direction is -60°~60°, and / or the angle between the cross section of the second drainage portion (1140) and the vertical direction is -60°~60°.

7. The fan housing according to any one of claims 1 to 6, characterized in that: The fan housing further comprises a first connecting ear (115) and a second connecting ear (116), wherein the first connecting ear (115) is connected to the first end wall (111), and the second connecting ear (116) is connected to the second end wall (112); The first connecting ear (115) is provided with a first mounting hole (1150), and the second connecting ear (116) is provided with a second mounting hole (1160); the first mounting hole (1150) and the second mounting hole (1160) are used to insert fasteners to mount the fan housing (11) on equipment used by the cross-flow fan.

8. A cross-flow fan, characterized in that: The cross-flow fan comprises a fan housing (11) according to any one of claims 1 to 7.

9. The cross-flow fan according to claim 8, wherein The cross-flow fan further comprises a fan body (12), wherein the fan body (12) is arranged in the fan housing (11) and mounted on the first end wall (111) and the second end wall (112); The fan body (12) is spaced apart from the first side wall (113) and the second side wall (114); a guide groove (1103) is formed between the fan body (12), the first side wall (113) and the second side wall (114); and the guide groove (1103) is communicated with the air inlet (1101) and the air outlet (1102).

10. The cross-flow fan according to claim 9, wherein The cross-section of the first side wall (113) and the cross-section of the second side wall (114) are arc-shaped and distributed on the same circumference; the cross-section of the guide groove (1103) is also arc-shaped.

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