Injection molded self-balancing impeller

Abstract

The utility model provides a kind of injection molding self-balancing impeller, it relates to the technical field of motor, the injection molding self-balancing impeller, including impeller main body, the impeller main body has assembly hole, and multiple balancing structures are provided with along the circumferential side of the assembly hole.The utility model provides the assembly hole of the impeller main body of injection molding self-balancing impeller and is provided with multiple balancing structures on circumferential side, when initial production of each batch, measure product balancing performance, then reach the requirement of making injection molding self-balancing impeller to balance limit value by adjusting the position and height of balancing structure;When subsequent injection molding self-balancing impeller is balanced and tested, less artificial debugging can meet the product balance limit value requirement;Solved the pain point of slow production rhythm, cannot be automated production, realized the reduction of production investment also greatly improved production efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of motors, and in particular to an injection-molded self-balancing impeller. Background Technology

[0002] The blower impeller in existing automotive air conditioning systems requires balancing tests on both sides after assembly, and balancing weights are added to achieve the required balance limits. The balancing test cycle is slow, primarily relying on manual addition of balancing weights; each time weights are added, another balancing test is required. These repeated weight additions and tests significantly slow down the production cycle of this process compared to other processes.

[0003] Currently, the main solution to this problem is to add more equipment and have more people produce simultaneously, resulting in high equipment and production costs. Automated clamping is not feasible because the fan blades rotate freely, and the assembly position is within a certain range and uncertain. It requires operators to rely on experience to judge the position. Due to the uncertainty of the selected values ​​and assembly positions, manual operation of adding balance weights is required multiple times, significantly increasing the production cycle time. This places high demands on the operators' understanding and proficiency; new employees require extensive training and practice to become competent. Furthermore, to prevent the balance weights from falling off, they are designed with barbs and an interference fit with the blades, making the clamping process laborious, extremely strenuous for workers, and leading to a high turnover rate. Utility Model Content

[0004] The purpose of this invention is to provide an injection-molded self-balancing impeller to alleviate the technical problem of the difficulty in adjusting the balance limit of the blower impeller.

[0005] This utility model provides an injection-molded self-balancing impeller, including an impeller body, the impeller body having an assembly hole, and a plurality of balancing structures arranged along the periphery of the assembly hole.

[0006] In an optional embodiment, the impeller body includes an assembly end and a first base ring, and a plurality of blades are disposed between the assembly end and the first base ring, with one end of each blade connected to the assembly end and the other end connected to the first base ring.

[0007] In an alternative embodiment, the blade extends axially along the mounting hole.

[0008] In an optional implementation, a plurality of the balancing structures are disposed on the first base ring.

[0009] In an optional embodiment, a plurality of the balancing structures are disposed on the assembly end.

[0010] In an alternative embodiment, the blade extends radially along the mounting hole.

[0011] In an optional embodiment, the mounting end has a hub, and a plurality of inner fins are provided on the inner side of the hub, the plurality of inner fins being evenly arranged along the circumference of the mounting hole.

[0012] In an optional embodiment, a plurality of the balancing structures are disposed on the wheel hub.

[0013] In an optional implementation, the balancing structure is a boss.

[0014] In an optional embodiment, the cross-section of the balancing structure is circular or polygonal.

[0015] The self-balancing impeller for injection molding provided by this utility model has multiple balancing structures arranged around the assembly hole of the impeller body. During the initial production of each batch, the product's balance performance is measured, and then the position and height of the balancing structures are adjusted to ensure that the self-balancing impeller for injection molding reaches the balance limit. This reduces the need for manual adjustments during subsequent balance tests of the self-balancing impeller for injection molding, thus meeting the product's balance limit requirements. It solves the pain points of slow production cycle and the inability to automate production, achieving a reduction in production input while greatly improving production efficiency. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of the injection-molded self-balancing impeller provided in an embodiment of the present utility model; Figure 2 for Figure 1 A schematic diagram of the injection-molded self-balancing impeller from another angle; Figure 3 Another structural schematic diagram of the injection-molded self-balancing impeller provided in this embodiment of the utility model; Figure 4 for Figure 3 A schematic diagram of the injection-molded self-balancing impeller from another angle.

[0018] Icons: 100-Assembly end; 200-Blade; 300-First base ring; 400-Assembly hole; 500-Balance structure; 600-Hub; 700-Inner fin. Detailed Implementation

[0019] The terms “first,” “second,” “third,” etc., are used only for distinguishing descriptions and do not indicate a sequence number, nor should they be interpreted as indicating or implying relative importance.

[0020] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply 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 tilted.

[0021] In the description of this application, it should be noted that the terms "inner", "outer", "left", "right", "upper", "lower", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They 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. Therefore, they should not be construed as limitations on this application.

[0022] In the description of this application, unless otherwise expressly specified and limited, the terms “set up,” “install,” “connect,” and “link” shall be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection; as a mechanical connection or an electrical connection; as a direct connection or an indirect connection through an intermediate medium; or as a connection within two components.

[0023] The technical solution of this application will now be clearly and completely described with reference to the accompanying drawings.

[0024] Example Reference Figures 1-4 This utility model provides an injection-molded self-balancing impeller, including an impeller body, the impeller body having an assembly hole 400, and a plurality of balancing structures 500 arranged along the periphery of the assembly hole 400.

[0025] In some embodiments, the injection-molded self-balancing impeller is an injection-molded product, and the balancing structure 500 on the impeller body is integrally formed with the impeller body. During the initial production of the injection-molded self-balancing impeller, the position of the balancing structure 500 and the height of the balancing mechanism are adjusted according to the results of the balancing test, so that the balancing test of the produced injection-molded self-balancing impeller meets the required balancing limit value. This reduces the need for manual adjustments during subsequent balancing tests of the injection-molded self-balancing impeller to meet the product balancing limit requirements. It solves the pain points of slow production cycle and inability to automate production, achieving a reduction in production input while greatly improving production efficiency.

[0026] The impeller body has an assembly hole 400, in which an assembly shaft is provided; thereby realizing the assembly of the injection-molded self-balancing impeller; the assembly hole 400 is located at the center of the impeller body, and multiple balancing structures 500 are evenly arranged along the periphery of the assembly hole 400.

[0027] In an optional embodiment, the impeller body includes an assembly end 100 and a first base ring 300, and a plurality of blades 200 are disposed between the assembly end 100 and the first base ring 300. One end of each blade 200 is connected to the assembly end 100 and the other end is connected to the first base ring 300.

[0028] The impeller body includes an assembly end 100, an assembly hole 400 is provided on the assembly end 100, and a first base ring 300 is connected to the assembly end 100 by multiple blades 200, which are evenly arranged along the periphery of the assembly hole 400.

[0029] Reference Figure 1 and Figure 2 In an optional embodiment, the blade 200 extends axially along the mounting hole 400.

[0030] In an optional embodiment, a plurality of the balancing structures 500 are disposed on the first base ring 300.

[0031] In an optional embodiment, a plurality of the balancing structures 500 are disposed on the assembly end 100.

[0032] In some embodiments, the blade 200 extends along the axis of the assembly shaft, and a plurality of balancing structures 500 are disposed on the first base ring 300, or a plurality of balancing structures 500 are disposed on the assembly end 100; the plurality of balancing structures 500 may also be disposed on both the first base ring 300 and the assembly end 100.

[0033] Reference Figure 3 and Figure 4 In an optional embodiment, the blade 200 extends radially along the mounting hole 400.

[0034] In an optional embodiment, the mounting end 100 has a hub 600, and a plurality of inner fins 700 are provided on the inner side of the hub 600, and the plurality of inner fins 700 are evenly arranged along the circumference of the mounting hole 400.

[0035] In an optional embodiment, a plurality of the balancing structures 500 are disposed on the hub 600.

[0036] In some embodiments, the blade 200 extends radially along the mounting hole 400, and a hub 600 is provided on the mounting end 100. The hub 600 has a plurality of inner fins 700, which are uniformly arranged circumferentially along the mounting hole 400. A balancing structure 500 is provided on the hub 600, and the plurality of balancing structures 500 are uniformly arranged circumferentially along the mounting hole 400.

[0037] Currently, fan balance adjustment is achieved manually by clamping a balance block onto the blade 200. The angle at which the balance block is clamped onto the blade 200 and its distance from the center of the circle require the operator to make a comprehensive judgment based on experience, the angle measured by the equipment, and the unbalance value, and then select the appropriate balance block to clamp onto the appropriate position of the blade 200 to adjust the balance.

[0038] Automated clamping is not possible because the fan blades rotate freely, and the assembly position is within a range and uncertain. It requires the operator's experience to make judgments; due to the uncertainty of the selected values ​​and assembly position, manual operation of adding balance blocks is required multiple times, which multiplies the production cycle time.

[0039] By setting a balancing structure 500 on the hub 600 and measuring the product's balance performance, the impeller with good balance can be produced during injection molding by adjusting the height of the ejector pins at the corresponding boss positions in the mold. After the fan blades are assembled, this technology allows for production without the need for additional balancing blocks, or requires only minimal adjustments to meet the product's balance limit requirements.

[0040] In an optional implementation, the balancing structure 500 is a boss.

[0041] In an optional embodiment, the cross-section of the balancing structure 500 is circular or polygonal.

[0042] In some embodiments, the balancing structure 500 is a boss, and the cross-section of the balancing structure 500 is generally circular or polygonal, such as rectangular or hexagonal.

[0043] During the injection molding process, the mold corresponding to the balancing structure 500 can be height-adjusted, thereby adjusting the height of the balancing structure 500. Each balancing structure 500 on the impeller body is marked with a corresponding number. The height of the relevant balancing structure 500 is adjusted according to the results of the balancing test, thereby enabling the injection-molded self-balancing impeller to be controlled during the production process. This reduces the need for adjustments after balancing tests in mass-produced injection-molded self-balancing impellers and improves production efficiency.

[0044] The self-balancing impeller for injection molding provided by this utility model has multiple balancing structures 500 arranged around the mounting hole 400 of the impeller body. During the initial production of each batch, the product's balance performance is measured, and then the position and height of the balancing structures 500 are adjusted to ensure that the self-balancing impeller for injection molding reaches the balance limit. This reduces the need for manual adjustments during subsequent balance tests of the self-balancing impeller for injection molding, thus meeting the product's balance limit requirements. It solves the pain points of slow production cycle and inability to automate production, achieving a reduction in production input while greatly improving production efficiency.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A self-balancing injection-molded impeller, characterized in that, Includes an impeller body, the impeller body having an assembly hole (400), and a plurality of balancing structures (500) arranged along the periphery of the assembly hole (400). The balancing structure (500) is a boss.

2. The injection-molded self-balancing impeller according to claim 1, characterized in that, The impeller body includes an assembly end (100) and a first base ring (300). A plurality of blades (200) are arranged between the assembly end (100) and the first base ring (300). One end of each blade (200) is connected to the assembly end (100), and the other end is connected to the first base ring (300).

3. The injection-molded self-balancing impeller according to claim 2, characterized in that, The blade (200) extends axially along the mounting hole (400).

4. The injection-molded self-balancing impeller according to claim 3, characterized in that, Multiple of the aforementioned balancing structures (500) are disposed on the first base ring (300).

5. The injection-molded self-balancing impeller according to claim 3, characterized in that, Multiple of the aforementioned balancing structures (500) are disposed on the assembly end (100).

6. The injection-molded self-balancing impeller according to claim 4, characterized in that, The blade (200) extends radially along the mounting hole (400).

7. The injection-molded self-balancing impeller according to claim 4, characterized in that, The assembly end (100) has a hub (600), and a plurality of inner fins (700) are provided on the inner side of the hub (600). The plurality of inner fins (700) are evenly arranged along the circumference of the assembly hole (400).

8. The injection-molded self-balancing impeller according to claim 7, characterized in that, Multiple of the aforementioned balance structures (500) are disposed on the hub (600).

9. The injection-molded self-balancing impeller according to claim 7, characterized in that, The cross-section of the balancing structure (500) is circular or polygonal.

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