Mesh enclosure
By designing arc-shaped aircraft guide rails and gradually enlarged circular guide rails, combined with the fixing method of snaps and fastening holes, the problems of wind resistance and noise in the mesh cover are solved, achieving a more stable structure and noise reduction effect.
Patent Information
- Application Number
- CN202323285323.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-11-30
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2033-11-30
AI Technical Summary
The existing mesh cover has a large wind resistance, which leads to noise problems, is fixed and unstable, and is prone to resonant sound.
A mesh cover is designed, including a center fixed ball, outer ring, aircraft guide rail and circular rail. The aircraft guide rail is arranged in an arc shape, the arc and wind resistance direction are consistent, the diameter of the circular rail gradually increases, the distance between adjacent guide rails is fixed, snap and tight The solid hole is used for stable fixation.
Reduces wind field resistance, reduces noise, enhances the stability of the mesh structure, prevents fingers from entering, avoids harm to the human body, and reduces resonant sounds through uniform fixation.
Smart Images
Figure CN222143420U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of heat pumps, in particular to a mesh cover. Background Art
[0002] At present, some units on the market have large wind resistance, the mesh cover is difficult to install and fix, the fixation is not stable enough, and the unit is noisy.
[0003] The reason is that the mesh cover guide rails are of consistent height and intersect vertically, cutting the wind field vertically. Vertical cutting of the wind field will cause large wind resistance, which will cause large wind noise and poor effect. In addition, the mesh cover fixing method is relatively simple and unstable. Unstable fixing will produce resonant sound, thereby causing noise and other phenomena. Utility Model Content
[0004] The purpose of the utility model includes, for example, providing a mesh cover which can improve the problem of large wind resistance of the existing mesh cover.
[0005] The embodiments of the present invention can be implemented as follows:
[0006] An embodiment of the utility model provides a mesh cover, comprising a central fixed ball, an outer ring, an aircraft guide rail and a circular guide rail, wherein the outer ring is arranged around the outer circumference of the central fixed ball; the number of the aircraft guide rails is multiple, and the multiple aircraft guide rails are arranged in a ring between the central fixed ball and the outer ring, one end of the aircraft guide rail is fixed to the central fixed ball, and the other end of the aircraft guide rail is fixed to the outer ring; the aircraft guide rail is arc-shaped, and the height of the aircraft guide rail relative to a first preset plane gradually increases and then decreases along the direction from the central fixed ball to the outer ring, and the increase in the increase stage gradually decreases and then increases; wherein the first preset plane passes through the center of the central fixed ball and is perpendicular to the axis of the central fixed ball; the number of the circular guide rails is multiple, the diameters of the multiple circular guide rails gradually increase, and are coaxially fixed on the multiple aircraft guide rails, and the distance between two adjacent circular guide rails ranges from 7 to 8.5 mm.
[0007] In addition, the mesh cover provided in the embodiment of the utility model may also have the following additional technical features:
[0008] Optionally, the plurality of aircraft rails form a windward side and a leeward side located jointly on both sides of the plurality of aircraft rails; and the plurality of circle rails fix the leeward sides of the plurality of aircraft rails.
[0009] Optionally, the angle formed by a tangent line at any point on the aircraft guide rail and the first preset plane is in the range of 2°-30°.
[0010] Optionally, the distance of the aircraft guide rail from the central fixed ball to the outer ring relative to the second preset plane gradually increases, and the increase gradually decreases and then increases;
[0011] Wherein, the second preset plane passes through the axis of the central fixed ball.
[0012] Optionally, the angle formed by the tangent line at any point on the aircraft guide rail and the second preset plane is in the range of 2°-30°.
[0013] Optionally, the distance between two adjacent aircraft guide rails gradually increases along the direction from the central fixed ball to the outer ring, and the distance ranges from 7.3 mm to 61.4 mm.
[0014] Optionally, the aircraft guide rail is arranged to be inclined along the circumference of the central fixed ball.
[0015] Optionally, the aircraft guide rail has an inclination angle ranging from 24° to 26° along the circumference of the central fixed ball.
[0016] Optionally, the circular guide rail is arranged to be inclined along the radial direction of the central fixed ball, and the windward side of the aircraft guide rail is farther away from the central fixed ball than the leeward side.
[0017] Optionally, the outer ring is fixed with a plurality of fastening holes and a plurality of buckles at intervals along the circumferential direction; the buckles are arranged at an angle with the outer ring, and the buckles are used to be obliquely inserted into the buckle holes for fixing.
[0018] The beneficial effects of the mesh cover of the utility model embodiment include, for example:
[0019] The net cover comprises a central fixed ball, an outer ring, an aircraft guide rail and a circular guide rail, wherein the outer ring is arranged around the outer circumference of the central fixed ball; there are multiple aircraft guide rails, which are arranged in a ring between the central fixed ball and the outer ring, one end of the aircraft guide rail is fixed to the central fixed ball, and the other end of the aircraft guide rail is fixed to the outer ring; the height of the aircraft guide rail from the central fixed ball to the outer ring gradually increases and then decreases relative to a first preset plane, and the increase in the increase stage gradually decreases and then increases; wherein the first preset plane passes through the center of the central fixed ball and is perpendicular to the axis of the central fixed ball; there are multiple circular guide rails, the diameters of the multiple circular guide rails gradually increase, and the multiple circular guide rails are coaxially fixed on the multiple aircraft guide rails, and the distance between two adjacent circular guide rails ranges from 7 to 8.5 mm.
[0020] The height limit of the aircraft guide rail and the first preset plane makes the curvature of the aircraft guide rail consistent with the direction of wind resistance, and the wind resistance cuts the aircraft guide rail in an arc, reducing the wind field resistance and thus reducing the wind resistance; the distance limit between two adjacent circle guide rails prevents the mesh cover from being shaken by the wind when the unit motor and the fan blades rotate, thereby affecting the unit noise reduction, strengthening the mesh cover structure, and preventing fingers from entering to avoid human injury. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.
[0022] Figure 1 An axial side view of the screen provided for this embodiment;
[0023] Figure 2 A front view of the mesh cover provided in this embodiment;
[0024] Figure 3 A top view of the mesh cover provided in this embodiment;
[0025] Figure 4 The mesh cover provided in this embodiment is Figure 3 Sectional view of AA.
[0026] Icons: 10-mesh cover; 100-center fixing ball; 200-outer ring; 300-aircraft guide rail; 310-circle guide rail; 400-windward side; 410-leeward side; 500-buckle; 510-fastening hole. DETAILED DESCRIPTION
[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.
[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0029] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.
[0030] In the description of the present utility model, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the utility model product is usually placed when used. It is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present utility model.
[0031] In addition, the terms “first”, “second”, etc., if used, are merely used to distinguish between the descriptions and should not be understood as indicating or implying relative importance.
[0032] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.
[0033] Combine the following Figures 1 to 4 The mesh cover 10 provided in this embodiment is described in detail.
[0034] Please refer to Figure 1 as well as Figure 4 The embodiment of the utility model provides a net cover 10, comprising a central fixed ball 100, an outer ring 200, an aircraft guide rail 300 and a circular guide rail 310, wherein the outer ring 200 is arranged around the outer periphery of the central fixed ball 100; the number of the aircraft guide rails 300 is multiple, and the multiple aircraft guide rails 300 are annularly arranged between the central fixed ball 100 and the outer ring 200, one end of the aircraft guide rail 300 is fixed to the central fixed ball 100, and the other end of the aircraft guide rail 300 is fixed to the outer ring 200; the aircraft guide rail 300 is arc-shaped, and the aircraft guide rail 310 is arc-shaped. The height of the aircraft guide rail 300 gradually increases and then decreases relative to the first preset plane along the direction from the central fixed ball 100 to the outer ring 200, and the increase in the increasing stage gradually decreases and then increases; wherein, the first preset plane passes through the center of the central fixed ball 100 and is perpendicular to the axis of the central fixed ball 100; there are multiple circular guide rails 310, the diameters of the multiple circular guide rails 310 gradually increase, and they are coaxially fixed on the multiple aircraft guide rails 300, and the distance between two adjacent circular guide rails 310 ranges from 7 to 8.5 mm.
[0035] The first preset plane Figure 1 as well as Figure 4 aa in Figure 1 as well as Figure 4 Where aa is a straight line on the first preset plane.
[0036] The central fixed ball 100 is a sphere or a hemisphere. The arc of the airplane guide rail 300 is similar to the arc of an airplane, and multiple airplane guide rails 300 form an outline similar to an airplane. The height of the highest slope height of the airplane guide rail 300 relative to the first preset plane is 35mm. Along the direction from the outer ring 200 to the central fixed ball 100, it sinks from the slope height to the middle, forming an airplane arc, forming an airplane shape, and the whole is similar to an airplane. The circle guide rails 310 and the circle guide rails 310 are arranged and combined, and the distance between the circle guide rails 310 and the circle guide rails 310 is 7.9mm. It can prevent the mesh cover 10 from being shaken by the wind when the unit motor and the fan blades are rotating, affecting the noise reduction of the unit, strengthen the structure of the mesh cover 10, and prevent fingers from entering to avoid human injury.
[0037] Reference Figure 1 as well as Figure 4 In this embodiment, the plurality of aircraft rails 300 form a windward side 400 and a leeward side 410 located on both sides of the plurality of aircraft rails 300 ; the plurality of circle rails 310 fix the leeward side 410 of the plurality of aircraft rails 300 .
[0038] Specifically, the height from the circular guide rail 310 to the first preset plane is lower than the height from the aircraft guide rail 300 to the first preset plane. When the aircraft guide rail 300 and the circular guide rail 310 are arranged and combined, the aircraft guide rail 300 needs to be inclined and the circular guide rail 310 needs to be lower than the aircraft guide rail 300, because when the airflow is blown out, the airflow is blown out with the aircraft guide rail 300. If the circular guide rail 310 is higher than the aircraft guide rail 300, the high circular guide rail 310 will block the airflow, and the noise reduction effect cannot be achieved. Therefore, the circular guide rail 310 needs to be lower than the aircraft guide rail 300.
[0039] Reference Figure 1 as well as Figure 4 In this embodiment, the angle formed by the tangent line at any point on the aircraft guide rail 300 and the first preset plane is in the range of 2°-30°. The aircraft guide rail 300 has an angle with respect to the first preset plane, and the angle is between 2°-30°; and the aircraft guide rail 300 is arranged to form an aircraft-shaped profile. For example, the angle formed by the tangent line at one point on the aircraft guide rail 300 and the first preset plane is Figure 4 Angle A in.
[0040] Reference Figure 3 In this embodiment, the distance of the aircraft guide rail 300 from the center fixed ball 100 to the outer ring 200 relative to the second preset plane gradually increases, and the increase gradually decreases and then increases; wherein the second preset plane passes through the axis of the center fixed ball 100.
[0041] The second preset plane passes Figure 3 bb in Figure 3The bb in the figure is a line passing through the center of the central fixed sphere 100 and within the first preset plane.
[0042] The aircraft guide rails 300 and the aircraft guide rails 300 are arranged and combined with a slope. When the motor blades rotate, the aircraft guide rails 300 and the air flow in the air field are consistent, and the air flow is blown out along the trajectory of the aircraft guide rails 300. Compared with the traditional mesh cover 10, the two guide rails of the traditional mesh cover 10 are flush, which is similar to cutting the wind field. Directly cutting the wind field has greater resistance and noise. However, the aircraft guide rails 300 and the aircraft guide rails 300 of this mesh cover 10 have an angle, and the direction of the aircraft guide rails 300 and the wind resistance is consistent. The wind resistance and the aircraft guide rails 300 are cut in an arc, which reduces the wind field resistance and thus reduces the wind resistance, thereby achieving the purpose of noise reduction.
[0043] Reference Figure 3 In this embodiment, the angle formed by the tangent line at any point on the aircraft rail 300 and the second preset plane is in the range of 2°-30°, which further improves the consistency between the aircraft rail 300 and the air flow of the air field, and has a better noise reduction effect.
[0044] In this embodiment, the distance between two adjacent aircraft rails 300 gradually increases along the direction from the central fixed ball 100 to the outer ring 200, and the distance range is 7.3mm-61.4mm. The distance setting between the aircraft rails 300 can improve the consistency between the aircraft rails 300 and the air field airflow while also improving the overall strength of the net cover 10 to prevent the net cover 10 from being shaken by the wind. At the same time, it prevents fingers from entering to avoid human body injuries.
[0045] Reference Figure 1 In this embodiment, the aircraft guide rail 300 is inclined along the circumference of the central fixed ball 100. The aircraft guide rail 300 is more consistent with the air flow of the air field, and the noise reduction effect is better.
[0046] In this embodiment, the inclination angle of the aircraft guide rail 300 along the circumference of the central fixed ball 100 ranges from 24° to 26°. The inclination angle of the aircraft guide rail 300 along the circumference of the central fixed ball 100 relative to the first preset plane is shown as follows: Figure 1 The angle B in the middle further improves the consistency between the aircraft rail 300 and the air flow of the air field, and the noise reduction effect is better.
[0047] Reference Figure 1 In this embodiment, the circular guide rail 310 is tilted along the radial direction of the central fixed ball 100 , and the windward side 400 of the aircraft guide rail 300 is farther away from the central fixed ball 100 than the leeward side 410 .
[0048] The inclination angle of the circular guide rail 310 relative to the first preset plane along the radial direction of the central fixed ball 100 is shown as follows: Figure 1 The angle c in the middle is adapted to the wind direction and the fixing strength of the circular guide rail 310 and the aircraft guide rail 300 is enhanced to reduce shaking.
[0049] Reference Figure 1 as well as Figure 2 In this embodiment, the outer ring 200 is fixed with a plurality of fastening holes 510 and a plurality of buckles 500 at intervals along the circumferential direction; the buckles 500 are arranged at an angle with the outer ring 200, and the buckles 500 are used to be obliquely inserted into the buckle holes for fixing.
[0050] The mesh cover 10 is fixed by a plurality of fastening holes 510 and a plurality of buckles 500, specifically, 4 buckles 500 + 4 screws are evenly spaced and used together, so that the fixation is more stable and reliable; the angle of the buckle 500 is an obtuse angle, and the arc angle of the buckle 500 is about 102°. This buckle 500 is convenient for rotating the mesh cover 10 and fastening the sheet metal during installation, and self-tapping screws can be driven without manual assistance, reducing manpower and material resources. One person can directly rotate the mesh cover 10 onto the sheet metal, and finally fix it with screws. The buckles 500 and fastening holes 510 are evenly distributed, so that the fixing force of the mesh cover 10 is more uniform and the fixation is more stable. The fastening holes 510 are screw holes or screw holes.
[0051] The buckle 500 is used in conjunction with the screw hole to evenly apply force to the mesh cover 10, reduce resonance sound, and make the fixation between the mesh cover 10 and the sheet metal more stable.
[0052] According to a mesh cover 10 provided in this embodiment, the working principle of the mesh cover 10 is: when the airflow is blown out, the airflow is blown out along the aircraft guide rail 300, so that the direction of the guide rail needs to be consistent with the direction of the wind field. When the unit is running, the direction of the wind is consistent with the direction of the aircraft guide rail 300, the wind resistance is reduced, and the wind noise is reduced.
[0053] The following provides the wind volume noise test results, see Table 1.
[0054] Table 1
[0055]
[0056] Table 1 shows: Under nominal heating conditions, the air supply noise is reduced by 3.9dB(A) at the same speed and air volume; Under nominal cooling conditions, the air supply noise is reduced by 4.6dB(A) at the same speed and air volume; Under the same air volume in the full speed range, the air supply noise is reduced by an average of 3dB(A).
[0057] Combined with the noise reduction of the compressor system, the final noise reduction effect of the whole machine is shown in Table 2.
[0058] Table 2 shows: Nominal heating noise is reduced by 5.3dB(A), nominal cooling noise is reduced by 8.3dB(A); unstable air supply and jitter noise are eliminated.
[0059] Table 2
[0060]
[0061] The mesh cover 10 provided in this embodiment has at least the following advantages:
[0062] There is an angle between the aircraft guide rail 300 and the first preset plane, and the angle is between 2° and 30°; and the aircraft guide rails 300 are arranged to form an aircraft-shaped outline, and the circular guide rails 310 are arranged and combined with the circular guide rails 310. The aircraft mesh cover 10 aligns the aircraft guide rail 300 with the direction of wind resistance, and the wind resistance is cut into an arc with the aircraft guide rail 300, thereby reducing wind field resistance and thus reducing wind resistance; the distance between the circular guide rails 310 and the circular guide rails 310 is 7.9 mm, which prevents the mesh cover 10 from being shaken by the wind when the unit motor and the fan blades rotate, thereby affecting the noise reduction of the unit, strengthening the structure of the mesh cover 10, and preventing fingers from entering to avoid human injury.
[0063] The circular guide rail 310 is lower than the aircraft guide rail 300 and is fixed to the leeward side 410 of the aircraft guide rail 300: when the airflow is blown out, the airflow is blown out along with the aircraft guide rail 300. If the circular guide rail 310 is higher than the aircraft guide rail 300, the circular guide rail 310 will block the airflow and the noise reduction effect cannot be achieved. Therefore, the circular guide rail 310 needs to be lower than the aircraft guide rail 300.
[0064] There is a slope between the aircraft guide rail 300 and the second preset plane, and the distance between the aircraft guide rail 300 and the aircraft guide rail 300 is 7.3mm-61.4mm; when the motor blade rotates, the aircraft guide rail 300 and the air flow of the air field are consistent, and the flying air flow is blown out along the trajectory of the aircraft guide rail 300 to improve the noise reduction effect.
[0065] The mesh cover 10 is evenly matched with multiple buckles 500 and multiple fastening holes 510 to improve the fixing temperature and reduce the noise caused by shaking. The buckle 500 has an obtuse angle of 102°: when installing, the mesh cover 10 is rotated and fastened to the sheet metal, and self-tapping screws can be driven without manual assistance, reducing manpower and material resources. One person can directly rotate the mesh cover 10 onto the sheet metal, and finally fix it with screws. The buckles 500 and screw holes are evenly distributed, making the fixing force of the mesh cover 10 more uniform and more stable.
[0066] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.
Claims
1. A mesh cover, characterized in that: include: Central fixed ball (100); An outer ring (200), the outer ring (200) being arranged around the outer circumference of the central fixed ball (100); An aircraft guide rail (300), wherein the number of the aircraft guide rails (300) is plural, and the plurality of aircraft guide rails (300) are arranged in an annular manner between the central fixing ball (100) and the outer ring (200), one end of the aircraft guide rail (300) is fixed to the central fixing ball (100), and the other end of the aircraft guide rail (300) is fixed to the outer ring (200); The aircraft guide rail (300) is arc-shaped, and the height of the aircraft guide rail (300) relative to the first preset plane gradually increases and then decreases along the direction from the central fixing ball (100) to the outer ring (200), and the increase in the increasing stage gradually decreases and then increases; wherein the first preset plane passes through the center of the central fixing ball (100) and is perpendicular to the axis of the central fixing ball (100); And a circular guide rail (310), the number of the circular guide rails (310) is multiple, the diameters of the multiple circular guide rails (310) gradually increase, and they are coaxially fixed on the multiple aircraft guide rails (300), and the distance between two adjacent circular guide rails (310) ranges from 7 to 8.5 mm.
2. The mesh cover according to claim 1, characterized in that: The plurality of aircraft guide rails (300) form a windward side (400) and a leeward side (410) located on both sides of the plurality of aircraft guide rails (300); and the plurality of circle guide rails (310) fix the leeward sides (410) of the plurality of aircraft guide rails (300).
3. The mesh cover according to claim 1, characterized in that: The angle formed by a tangent line at any point on the aircraft guide rail (300) and the first preset plane is in the range of 2°-30°.
4. The mesh cover according to claim 1, characterized in that: The distance of the aircraft guide rail (300) from the central fixed ball (100) to the outer ring (200) relative to the second preset plane gradually increases, and the increase rate gradually decreases and then increases; Wherein, the second preset plane passes through the axis of the central fixing ball (100).
5. The mesh cover according to claim 4, characterized in that: The angle formed by the tangent line at any point on the aircraft guide rail (300) and the second preset plane is in the range of 2°-30°.
6. The mesh cover according to claim 4, characterized in that: The distance between two adjacent aircraft guide rails (300) gradually increases along the direction from the central fixed ball (100) to the outer ring (200), and the distance ranges from 7.3 mm to 61.4 mm.
7. The mesh cover according to any one of claims 1 to 6, characterized in that: The aircraft guide rail (300) is arranged obliquely along the circumference of the central fixed ball (100).
8. The mesh cover according to claim 7, characterized in that: The inclination angle of the aircraft guide rail (300) along the circumference of the central fixed ball (100) ranges from 24° to 26°.
9. The mesh cover according to claim 2, characterized in that: The circular guide rail (310) is arranged to be inclined along the radial direction of the central fixing ball (100), and the windward side (400) of the aircraft guide rail (300) is farther away from the central fixing ball (100) than the leeward side (410).
10. The mesh cover according to any one of claims 1 to 6, characterized in that: The outer ring (200) is fixed with a plurality of fastening holes (510) and a plurality of buckles (500) at intervals along the circumferential direction; the buckles (500) are arranged at an angle with the outer ring (200), and the buckles (500) are used to be obliquely inserted into the buckle holes for fixing.