Impeller structure of cross-flow fan blade

Abstract

The utility model relates to the field of cross-flow fan blade welding, in particular to an impeller structure of a cross-flow fan blade, which comprises a disc-shaped structural member and a plurality of blades, a positioning section is arranged on one side of the disc-shaped structural member, the positioning section is constructed to be a rough surface, at least one positioning groove is arranged in the positioning section, and the positioning groove and the edge of the disc-shaped structural member are arranged at intervals; the blades are located on the side, away from the positioning interval, of the disc-shaped structural part, and the multiple blades are annularly arranged on the disc-shaped structural part; by changing the position of the positioning groove, burrs are prevented from being generated in the positioning groove when the impeller is formed, deformation of the positioning groove is avoided, infrared rays can recognize the positioning groove more accurately, and material throwing of welding equipment is reduced; the surface reflection of the positioning section is reduced by performing rough treatment on the positioning section, and the recognition degree of the positioning device on the positioning groove is improved; the rough surface improves the friction force between the impeller and the welding head of the automatic welding machine, prevents the welding head from slipping on the surface of the impeller during welding, improves the welding precision, and improves the welding efficiency of the cross-flow fan blade.

Description

Technical Field

[0001] The utility model relates to the field of cross-flow fan blade welding, and particularly relates to an impeller structure of a cross-flow fan blade. Background Art

[0002] A cross-flow fan blade is composed of an impeller, several intermediate wind wheels and a shaft disc through ultrasonic welding; during welding, whether it is manual welding or welding by an automatic welding machine, the blades need to be placed into the corresponding blade grooves. The current solution is to respectively provide positioning holes on the impeller, the intermediate wind wheels and the shaft disc, and during welding, the positioning holes are used to assist the docking of the blades and the blade grooves; when the blades and the blade grooves are docked, the impeller is placed on a rotating mechanism through a fixture. At this time, a positioning device emits infrared rays onto the area where the positioning holes of the impeller are located, and through the rotation of the impeller, the infrared rays pass through the positioning holes to position the impeller; if the positioning device successfully detects the positioning holes, the impeller is moved to the welding station through the fixture, so that the impeller and the intermediate wind wheels are well docked.

[0003] However, as Figure 1 shown, since the positioning holes are located at the edge of the impeller, burrs, flash and deformation are likely to occur on the positioning holes during demolding, resulting in the reduction of the size of the positioning holes and difficulty in infrared ray detection; since the periphery of the positioning holes is too smooth, part of the infrared rays will be reflected, affecting the recognition accuracy, resulting in difficulty in detecting the positioning holes and affecting the welding efficiency of the cross-flow fan blade. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiency of difficult recognition of the positioning holes on the impeller in the prior art, and provide an impeller structure of a cross-flow fan blade.

[0005] The utility model provides an impeller structure of a cross-flow fan blade, including

[0006] a disc-shaped structural member, one side of the disc-shaped structural member is provided with a positioning area, the positioning area is constructed as a rough surface, at least one positioning groove is opened in the positioning area, and the positioning groove is arranged at an interval from the edge of the disc-shaped structural member;

[0007] several blades, the blades are located on the side of the disc-shaped structural member away from the positioning area, and the several blades are arranged in a ring on the disc-shaped structural member.

[0008] The impeller structure of a cross-flow fan blade of the present utility model is configured such that the positioning interval is a rough surface, and positioning grooves are provided in the positioning interval, so as to prevent the infrared rays emitted by the positioning device from being reflected, thereby avoiding misidentification and improving the recognition accuracy. The rough surface and the positioning grooves have a large contrast, so that the positioning device can more accurately identify the positioning grooves; there is a spacing between the positioning grooves and the edge of the disc-shaped structural member, preventing burrs and flash from occurring during the forming of the positioning grooves, making the formed positioning groove structure more stable, reducing the deformation of the positioning grooves, and ensuring the recognition accuracy of the positioning device; the blades and the positioning interval are respectively located on both sides of the disc-shaped structural member, leaving sufficient space for the positioning device to identify the positioning grooves, enabling the positioning device to quickly locate the positioning grooves.

[0009] Preferably, the positioning interval is spaced apart from the edge of the disc-shaped structural member.

[0010] The periphery of the positioning groove is a rough surface, so that there is a large contrast between the positioning groove and the surrounding recognition area, thereby reducing the recognition difficulty of the positioning device for the positioning groove and enabling the positioning groove to be accurately recognized.

[0011] Preferably, the positioning interval is an annular surface, and the center of the positioning interval is located on the axis of the disc-shaped structural member.

[0012] The impeller is rotated by a rotating mechanism so that the infrared rays are always irradiated within the annular positioning interval. When the positioning groove is detected by the infrared rays, the impeller stops rotating and is placed at a specified position for welding at the welding position.

[0013] Preferably, the positioning interval is configured as a textured surface.

[0014] The textured surface prevents the reflection of infrared rays, making it easier for the infrared rays to identify the positioning grooves; the textured surface also increases the friction between the welding head of the automatic welding machine and the surface of the impeller, preventing the welding head or the impeller from slipping during welding.

[0015] Preferably, the distance between the positioning groove and the edge of the disc-shaped structural member is greater than or equal to 2 mm.

[0016] The positioning groove is away from the edge of the disc-shaped structural member, which can reduce the burrs, flash and deformation occurring during the forming of the positioning groove, thereby improving the recognition degree of the positioning groove.

[0017] Preferably, the positioning groove is a rectangular groove.

[0018] The opening shape of the rectangular groove is rectangular, which is more convenient for the positioning device to identify.

[0019] Preferably, a plurality of the blades are arranged in a ring centered on the axis of the disc-shaped structural member.

[0020] The impeller can be docked with the middle wind wheel.

[0021] Preferably, a bearing hole is provided in the middle of the disc-shaped structural member, and a bearing member is provided in the bearing hole.

[0022] The impeller can rotate through the bearing member, thereby driving the middle wind wheel to rotate.

[0023] Preferably, the axis of the bearing member is collinear with the axis of the disc-shaped structural member.

[0024] Ensure that the bearing member rotates the impeller along the axis of the disc-shaped structural member, thereby ensuring the dynamic balance of the cross-flow fan blade.

[0025] Preferably, the blade and the disc-shaped structural member are integrally formed structural members.

[0026] Ensure the connection strength between the blade and the disc-shaped structural member.

[0027] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0028] 1. In the impeller structure of a cross-flow fan blade of the present utility model, by constructing the positioning interval as a rough surface and providing a positioning groove in the positioning interval, the infrared rays emitted by the positioning device are prevented from being reflected, thereby avoiding misidentification and improving the identification accuracy. The rough surface and the positioning groove have a large contrast, so that the positioning device can more accurately identify the positioning groove; there is a distance between the positioning groove and the edge of the disc-shaped structural member, which avoids burrs and flash during the forming of the positioning groove by the mold, makes the formed positioning groove structure more stable, reduces the deformation amount of the positioning groove, and ensures the identification accuracy of the positioning device; the blade and the positioning interval are respectively located on both sides of the disc-shaped structural member, leaving enough space for the positioning device to identify the positioning groove, so that the positioning device can quickly locate the positioning groove;

[0029] 2. In the impeller structure of a cross-flow fan blade of the present utility model, by moving the positioning groove a certain distance towards the center of the disc-shaped structural member, burrs generated in the positioning groove during the forming of the impeller are avoided, deformation of the positioning groove is avoided, so that the infrared rays can more accurately identify the positioning groove, and the material throwing of the welding equipment is reduced; by roughening the positioning interval, the surface reflection of the positioning interval is reduced, thereby improving the recognition degree of the infrared rays for the positioning groove; the rough surface increases the friction between the impeller and the welding head of the automatic welding machine, prevents the welding head from slipping on the surface of the impeller during welding, improves the welding accuracy, and thus improves the welding efficiency of the cross-flow fan blade, having good economic value and practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic structural diagram of an impeller of the prior art;

[0031] Figure 2 It is a schematic structural diagram of an impeller structure of a cross-flow fan blade of the present utility model;

[0032] Figure 3 This is a schematic structural view of the disc-shaped structural member of the present utility model;

[0033] Figure 4 This is a schematic structural view of the disc-shaped structural member of the impeller structure of a cross-flow air blade in Embodiment 1.

[0034] Markings in the figure:

[0035] 1 - Disc-shaped structural member, 2 - Blade, 3 - Positioning interval, 4 - Positioning groove, 5 - Bearing hole, 6 - Bearing member. Specific embodiments

[0036] The following further describes the present utility model in detail with reference to specific embodiments. However, this should not be construed as limiting the scope of the above-mentioned subject matter of the present utility model to the following embodiments. All technologies implemented based on the content of the present utility model fall within the scope of the present utility model.

[0037] In the description of the specific embodiments of the present utility model without special instructions, the expression terms indicating the orientation or positional relationship such as "upper", "lower", "left", "right", "center", "inner", "outer", etc. are all based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the product / device / device of the present utility model is commonly used. These terms of orientation or positional relationship are only for the convenience of describing the solution of the present utility model or simplifying the description in the specific embodiments, so as to facilitate technicians to quickly understand the solution, rather than indicating or implying that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, it should not be understood as a limitation to the present utility model.

[0038] In addition, if terms such as "horizontal", "vertical", "hanging", "parallel", etc. appear, it does not mean that the corresponding device / component / element is required to be absolutely horizontal or vertical or hanging or parallel, but can be slightly inclined or have a deviation. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined. Or, it can be simply understood that the corresponding device / component / element is arranged in the directions of "horizontal", "vertical", "hanging", "parallel", etc., and can have an error / deviation of ±10% relative to the corresponding direction setting, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the solution of the present utility model.

[0039] In addition, the expressions such as "first", "second", "third", etc. in the terms are only used to distinguish the descriptions of the same or similar components, and should not be understood as emphasizing or implying the relative importance of specific components.

[0040] In addition, in the description of the embodiments of the present utility model, "several", "multiple", and "a number of" represent at least 2. It can be any case of 2, 3, 4, 5, 6, 7, 8, 9, etc., and even can be a case of more than 9.

[0041] In addition, in the description of the technical solution of the present utility model, unless otherwise clearly specified / defined / restricted, where the terms "set", "installed", "connected", "connected", "provided with", "laid", "arranged" appear, they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be connection means commonly used in the art such as welding, riveting, bolting, and threaded connection. Such a connection can be a mechanical connection, an electrical connection, or a communication connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two components.

[0042] Embodiment 1

[0043] As Figures 2-4 shown, an impeller structure of a cross-flow fan blade includes

[0044] a disc-shaped structural member 1, a positioning section 3 is provided on one side of the disc-shaped structural member 1, the positioning section 3 is configured as a rough surface, at least one positioning groove 4 is opened in the positioning section 3, and the positioning groove 4 is spaced from the edge of the disc-shaped structural member 1;

[0045] a number of blades 2, the blades 2 are located on the side of the disc-shaped structural member 1 away from the positioning section 3, and the number of the blades 2 are arranged in a ring on the disc-shaped structural member 1.

[0046] By configuring the positioning section 3 as a rough surface and opening the positioning groove 4 in the positioning section 3, the infrared rays emitted by the positioning device are prevented from being reflected, thereby avoiding misidentification and improving the recognition accuracy. The rough surface and the positioning groove 4 have a large contrast, so that the positioning device can more accurately identify the positioning groove 4; the positioning groove 4 has a spacing from the edge of the disc-shaped structural member 1, avoiding burrs and flash when the mold forms the positioning groove 4, making the formed structure of the positioning groove 4 more stable, reducing the deformation amount of the positioning groove 4, and ensuring the recognition accuracy of the positioning device; the blade 2 and the positioning section 3 are respectively located on both sides of the disc-shaped structural member 1, reserving enough space for the positioning device to identify the positioning groove 4, so that the positioning device can quickly locate the positioning groove 4.

[0047] In one or several embodiments, the positioning interval 3 is spaced from the edge of the disc-shaped structural member 1. By moving the positioning interval 3 away from the edge of the disc-shaped structural member 1, the infrared rays emitted by the positioning device can more easily identify the positioning groove 4.

[0048] In one or several embodiments, the positioning interval 3 is an annular surface, and the center of the positioning interval 3 is located on the axis of the disc-shaped structural member 1; when the impeller rotates, the infrared rays are always located within the positioning interval 3. During positioning, the impeller rotates with the rotating mechanism, and the infrared rays can determine the accuracy of the impeller placement position based on whether they irradiate on the rough surface of the positioning interval 3, and timely adjust the horizontal position of the impeller, thereby improving the welding efficiency of the cross-flow fan blade.

[0049] In one or several embodiments, the positioning interval 3 is configured as a texturing surface, and the texturing surface reduces the reflection of light on the surface of the disc-shaped structural member 1, thereby improving the recognition ability of the positioning device for the positioning groove 4; the texturing surface increases the friction between the welding head of the automatic welding machine and the surface of the impeller, preventing the welding head or the impeller from slipping during welding, and the welding equipment model is HJJ-E.

[0050] In one or several embodiments, the distance between the positioning groove 4 and the edge of the disc-shaped structural member 1 is 2 mm; reducing the deformation of the positioning groove 4 and reducing burrs and flash on the positioning groove 4 during die forming, thereby improving the recognition degree of the positioning groove 4 and the recognition efficiency of the positioning device for the positioning groove 4.

[0051] In an alternative embodiment, the distance between the positioning groove 4 and the edge of the disc-shaped structural member 1 is 3 mm, and the position of the positioning groove 4 can be adjusted according to the irradiation position of the infrared rays.

[0052] In one or several embodiments, the positioning groove 4 is a rectangular groove; the opening of the rectangular groove is rectangular, and the shape of the rectangular groove is convenient for recognition, which can improve the recognition degree of the positioning device for the positioning groove 4.

[0053] In one or several embodiments, several blades 2 are arranged in a ring centered on the axis of the disc-shaped structural member 1; the impeller can be better docked with the middle wind wheel.

[0054] In one or several embodiments, a bearing hole 5 is provided in the middle of the disc-shaped structural member 1, and a bearing member 6 is provided in the bearing hole 5; the bearing member 6 enables the impeller to rotate.

[0055] In an alternative embodiment, the axis of the bearing member 6 is collinear with the axis of the disc-shaped structural member 1; ensuring the overall dynamic balance of the cross-flow fan blade and ensuring the welding yield of the cross-flow fan blade.

[0056] In one or several embodiments, the blade 2 and the disc-shaped structural member 1 are integrally formed structural members; ensuring the connection strength between the blade 2 and the disc-shaped structural member 1.

[0057] In an alternative embodiment, a plurality of positioning grooves 4 are provided, and a plurality of infrared ray recognition devices are used to simultaneously recognize the plurality of positioning grooves 4, thereby improving the positioning accuracy.

[0058] In an alternative embodiment, the shape of the positioning groove 4 may be a cylindrical shape, a rhombic prism shape or other groove shapes that are convenient for recognition.

[0059] The impeller structure of a cross-flow fan blade of the present utility model mainly cooperates with a positioning device to achieve the positioning of the impeller; its positioning function is realized by the texturing surface and the positioning groove 4. When welding the cross-flow fan blade, it is necessary to rely on the positioning device to emit infrared rays to recognize the positioning groove 4 on the impeller for positioning the impeller. With the assistance of the positioning groove 4, it is ensured that the blade 2 can be correctly fixed in the corresponding blade groove during welding; in addition, the texturing surface reduces the reflection of the impeller surface, thereby improving the recognition ability of the infrared rays for the positioning groove 4; the texturing surface also increases the friction force between the welding head of the automatic welding machine and the impeller surface, preventing the welding head or the impeller from slipping during welding, enabling the impeller to be quickly positioned, and thus improving the welding efficiency of the welding equipment.

[0060] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. The impeller structure of a cross-flow fan blade, characterized in that, Comprising A disc-shaped structural member (1), on one side of the disc-shaped structural member (1) there is a positioning section (3), the positioning section (3) is configured as a rough surface, and at least one positioning groove (4) is provided in the positioning section (3), and the positioning groove (4) is spaced from the edge of the disc-shaped structural member (1); A plurality of blades (2), the blades (2) are located on the side of the disc-shaped structural member (1) away from the positioning section (3), and the plurality of blades (2) are arranged in a ring on the disc-shaped structural member (1).

2. The impeller structure of a cross-flow fan blade according to claim 1, characterized in that, The positioning section (3) is spaced from the edge of the disc-shaped structural member (1).

3. The impeller structure of a cross-flow fan blade according to claim 1, characterized in that, The positioning section (3) is an annular surface, and the center of the positioning section (3) is located on the axis of the disc-shaped structural member (1).

4. The impeller structure of a cross-flow fan blade according to claim 1, characterized in that, The positioning section (3) is configured as a textured surface.

5. The impeller structure of a cross-flow fan blade according to claim 1, characterized in that, The distance between the positioning groove (4) and the edge of the disc-shaped structural member (1) is greater than or equal to 2 mm.

6. The impeller structure of a cross-flow fan blade according to claim 1, characterized in that, The positioning groove (4) is a rectangular groove.

7. The impeller structure of a cross-flow fan blade according to claim 1, characterized in that, The plurality of blades (2) are arranged in a ring centered on the axis of the disc-shaped structural member (1).

8. The impeller structure of a cross-flow fan blade according to claim 1, characterized in that, A bearing hole (5) is provided in the middle of the disc-shaped structural member (1), and a bearing member (6) is provided in the bearing hole (5).

9. The impeller structure of a cross-flow air blade according to claim 8, characterized in that, The axis of the bearing member (6) is collinear with the axis of the disc-shaped structural member (1).

10. The impeller structure of a cross-flow fan blade according to any one of claims 1-9, characterized in that, The blade (2) and the disc-shaped structural member (1) are an integrally formed structural member.

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