技术领域Technical Field
本发明涉及一种斜流风扇导叶结构，尤其是涉及一种可提升导流效率、降低风阻及噪音的导流叶片结构。The invention relates to a guide blade structure of an oblique flow fan, and in particular to a guide blade structure capable of improving flow guiding efficiency and reducing wind resistance and noise.
背景技术Background Art
斜流风扇是具备以轮毂为中心呈放射状排列的多个旋转叶片，通过马达等进行旋转的同时向旋转叶片的多方向吹送空气的流体机械，进而促进电风扇或换气用排风扇或汽车的散热器或冷凝器等的空冷式热交换器的散热。伴随着生活生产等产品向集约化、大功率化方向发展，通风散热需求日益增大，斜流风扇的通风性能越来越引起人们的重视，因此对斜流风扇开展特性改进等设计和研究显得尤为重要。A diagonal flow fan is a fluid machine that has multiple rotating blades arranged radially with the hub as the center, and blows air in multiple directions to the rotating blades while rotating them through a motor, thereby promoting heat dissipation in air-cooled heat exchangers such as electric fans or ventilation fans, or radiators or condensers in cars. As products such as life production develop towards intensification and high power, the demand for ventilation and heat dissipation is increasing, and the ventilation performance of diagonal flow fans is attracting more and more attention. Therefore, it is particularly important to design and study diagonal flow fans to improve their characteristics.
现有技术CN104074805A公开了一种带双导叶轴向前导器的离心式通风机，通过固定第二级前导器的角度、改变第一级前导器导叶的角度的方法实现风机风压、流量的调节，在改变第一级前导器导叶角度改变风机风压、流量的同时，使气流产生一定的预旋后，进入第二级前导器，而第二级前导器的导叶角度固定在风机叶轮所需要的最佳角度，即保证气流始终以最佳预旋角平滑顺畅地进入并通过风机叶轮叶道，保持风机高效率运转。二级前导器导叶的最佳角度可以根据风机设计的叶轮安装角度确定，也可以根据试验确定。Prior art CN104074805A discloses a centrifugal fan with a double-guide vane axial guide, which adjusts the wind pressure and flow of the fan by fixing the angle of the second-stage guide and changing the angle of the guide vane of the first-stage guide. While changing the angle of the guide vane of the first-stage guide to change the wind pressure and flow of the fan, the airflow is caused to have a certain pre-rotation before entering the second-stage guide, and the guide vane angle of the second-stage guide is fixed at the optimal angle required by the fan impeller, that is, to ensure that the airflow always enters and passes through the fan impeller blade channel smoothly at the optimal pre-rotation angle, so as to keep the fan running efficiently. The optimal angle of the guide vane of the secondary guide can be determined according to the impeller installation angle of the fan design, or according to experiments.
然而上述风机均存在设计上的局限性，适应性不强，功耗大、出风量不稳定、散热效率低且噪音高振动强，因此，针对这些问题，本申请人提出一种斜流风扇导叶结构来解决上述所提出的问题以改善流动特性，降低叶轮风阻及噪音进而提高出风效果和效率。However, the above-mentioned fans all have design limitations, poor adaptability, high power consumption, unstable air output, low heat dissipation efficiency, high noise and strong vibration. Therefore, in response to these problems, the applicant proposes a diagonal flow fan guide vane structure to solve the above-mentioned problems so as to improve the flow characteristics, reduce the impeller wind resistance and noise, and thus improve the air output effect and efficiency.
发明内容Summary of the invention
本发明的目的是为了解决现有技术中存在的缺点，而提出的一种斜流风扇导叶结构。The purpose of the present invention is to solve the shortcomings in the prior art and to propose a diagonal flow fan guide vane structure.
为了实现上述目的，本发明采用了如下技术方案：In order to achieve the above object, the present invention adopts the following technical solutions:
一种斜流风扇导叶结构，包括电机1，电机1与轮毂2连接并驱动其旋转，轮毂2上安装有叶片3，叶片3的外缘固定在叶轮盖环11内侧；其特征在于：导叶结构包括进口导叶结构和回流导叶结构；进口导叶结构固定于壳体上，其包括弧形外导壁4和环形内导壁5，弧形外导壁4与环形内导壁5通过中间导叶6连接；回流导叶结构包括固定导叶9和活动导叶10，固定导叶9安装于弧形外导壁4的外侧，活动导叶10安装于叶轮盖环11的入口内侧，固定导叶9与活动导叶10紧密配合对气体导流增压；进口导叶结构还包括内引射通道7和外增压稳流通道8，其中内引射通道7沿着环形内导壁5的管壁内部设置，内引射通道7为弧形流道，内引射通道进口71位于中间导叶6前缘侧之前，内引射通道进口71与中间导叶6前缘之间的距离为L1，在气流进口方向上，内引射通道进口71与水平轴线的夹角为A，内引射通道出口72位于中间导叶6后缘侧之后，内引射通道出口72与中间导叶6后缘之间的距离为L2，在气流出口方向上，内引射通道出口72与水平轴线的夹角为B；外增压稳流通道8沿着弧形外导壁4的管壁内部设置，其包括外增压稳流通道进口段80、外增压稳流通道第一出口段81、外增压稳流通道第二出口段82，外增压稳流通道进口段80与水平轴线平行，进口位于弧形外导壁4的内侧壁，外增压稳流通道第一出口段81与水平轴线平行，第一出口位于弧形外导壁4的外侧壁且第一出口的气流出口方向正对固定导叶9，外增压稳流通道第二出口段82与水平轴线的夹角为C，外增压稳流通道第二出口段82的出口位于弧形外导壁4的出口侧端壁；其中L1：L2＝0.2-0.8，A+B＝30°-60°，B＝(1.1-1.5)C。A guide vane structure of a diagonal flow fan, comprising a motor 1, the motor 1 is connected to a hub 2 and drives it to rotate, a blade 3 is mounted on the hub 2, and the outer edge of the blade 3 is fixed to the inner side of an impeller cover ring 11; the characteristics are as follows: the guide vane structure comprises an inlet guide vane structure and a return guide vane structure; the inlet guide vane structure is fixed to a housing, and comprises an arc-shaped outer guide wall 4 and an annular inner guide wall 5, and the arc-shaped outer guide wall 4 and the annular inner guide wall 5 are connected through an intermediate guide vane 6; the return guide vane structure comprises a fixed guide vane 9 and a movable guide vane 10, and the fixed guide vane 9 is mounted on the arc-shaped outer guide wall 4, the movable guide vane 10 is installed on the inner side of the inlet of the impeller cover ring 11, and the fixed guide vane 9 and the movable guide vane 10 are closely matched to guide and pressurize the gas; the inlet guide vane structure also includes an inner injection channel 7 and an outer pressurization stabilizing flow channel 8, wherein the inner injection channel 7 is arranged along the inner wall of the annular inner guide wall 5, the inner injection channel 7 is an arc-shaped flow channel, the inner injection channel inlet 71 is located in front of the leading edge side of the intermediate guide vane 6, the distance between the inner injection channel inlet 71 and the leading edge of the intermediate guide vane 6 is L1, and in the direction of the airflow inlet, the inner injection channel inlet The angle between the inner ejection channel outlet 72 and the horizontal axis is A, the inner ejection channel outlet 72 is located behind the trailing edge of the intermediate guide vane 6, the distance between the inner ejection channel outlet 72 and the trailing edge of the intermediate guide vane 6 is L2, and in the airflow outlet direction, the angle between the inner ejection channel outlet 72 and the horizontal axis is B; the outer boost flow stabilizing channel 8 is arranged along the inner wall of the arc-shaped outer guide wall 4, and includes an outer boost flow stabilizing channel inlet section 80, an outer boost flow stabilizing channel first outlet section 81, and an outer boost flow stabilizing channel second outlet section 82, and the outer boost flow stabilizing channel inlet section 80 is aligned with the horizontal axis. The axis is parallel, the inlet is located on the inner wall of the arc-shaped outer guide wall 4, the first outlet section 81 of the external boost steady flow channel is parallel to the horizontal axis, the first outlet is located on the outer wall of the arc-shaped outer guide wall 4 and the airflow outlet direction of the first outlet is directly opposite to the fixed guide vane 9, the angle between the second outlet section 82 of the external boost steady flow channel and the horizontal axis is C, and the outlet of the second outlet section 82 of the external boost steady flow channel is located on the outlet side end wall of the arc-shaped outer guide wall 4; wherein L1:L2=0.2-0.8, A+B=30°-60°, B=(1.1-1.5)C.
进一步地，L1：L2＝0.5，且L1+L2＝(0.1-0.3)R，其中R为叶轮的进口半径。Further, L1:L2=0.5, and L1+L2=(0.1-0.3)R, where R is the inlet radius of the impeller.
进一步地，A+B＝50°。Further, A+B=50°.
进一步地，B＝1.2C。Further, B=1.2C.
进一步地，A+C＝20°-50°。Further, A+C=20°-50°.
进一步地，中间导叶6与环形内导壁5连接的一端设置有矩形槽62。Furthermore, a rectangular groove 62 is provided at one end of the intermediate guide vane 6 connected to the annular inner guide wall 5 .
进一步地，中间导叶6与弧形外导壁4连接的一端设置有弧形槽61。Furthermore, an arc-shaped groove 61 is provided at one end of the intermediate guide vane 6 connected to the arc-shaped outer guide wall 4 .
进一步地，活动导叶10前缘设置有球形凸起101，固定导叶9设置有与球形凸起101相配合的弧形凹槽。Furthermore, a spherical protrusion 101 is provided on the leading edge of the movable guide vane 10 , and an arc-shaped groove matching with the spherical protrusion 101 is provided on the fixed guide vane 9 .
进一步地，活动导叶10前缘设置有矩形凸起102，固定导叶9设置有与矩形凸起102相配合的矩形凹槽。Furthermore, a rectangular protrusion 102 is provided on the leading edge of the movable guide vane 10 , and a rectangular groove matching with the rectangular protrusion 102 is provided on the fixed guide vane 9 .
进一步地，球形凸起101和矩形凸起102交错分布在活动导叶10前缘。Furthermore, the spherical protrusions 101 and the rectangular protrusions 102 are alternately distributed on the leading edge of the movable guide vane 10 .
本发明的一种斜流风扇导叶结构，其中导叶结构包括进口导叶结构和回流导叶结构；进口导叶结构包括弧形外导壁4和环形内导壁5，弧形外导壁4与环形内导壁5通过中间导叶6连接；回流导叶结构包括固定导叶9和活动导叶10，进口导叶结构还包括内引射通道7和外增压稳流通道8，内引射通道7沿着环形内导壁5的管壁内部设置，外增压稳流通道8沿着弧形外导壁4的管壁内部设置，其包括外增压稳流通道进口段80、外增压稳流通道第一出口段81、外增压稳流通道第二出口段82。由于对斜流风扇导叶结构进行了改进，改善流动特性，降低噪音，提高了输送效率。The invention discloses a diagonal flow fan guide vane structure, wherein the guide vane structure includes an inlet guide vane structure and a return guide vane structure; the inlet guide vane structure includes an arc-shaped outer guide wall 4 and an annular inner guide wall 5, and the arc-shaped outer guide wall 4 is connected to the annular inner guide wall 5 through an intermediate guide vane 6; the return guide vane structure includes a fixed guide vane 9 and a movable guide vane 10, and the inlet guide vane structure also includes an inner ejection channel 7 and an outer boost flow stabilization channel 8, the inner ejection channel 7 is arranged along the inner wall of the annular inner guide wall 5, and the outer boost flow stabilization channel 8 is arranged along the inner wall of the arc-shaped outer guide wall 4, and includes an outer boost flow stabilization channel inlet section 80, an outer boost flow stabilization channel first outlet section 81, and an outer boost flow stabilization channel second outlet section 82. Due to the improvement of the diagonal flow fan guide vane structure, the flow characteristics are improved, the noise is reduced, and the conveying efficiency is improved.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
图1为斜流风扇结构示意图；FIG1 is a schematic diagram of the structure of a diagonal flow fan;
图2为斜流风扇剖视图；FIG2 is a cross-sectional view of a diagonal flow fan;
图3为中间导叶6的结构示意图；FIG3 is a schematic diagram of the structure of the intermediate guide vane 6;
图4为固定导叶9和活动导叶10的结构示意图。FIG. 4 is a schematic structural diagram of the fixed guide vanes 9 and the movable guide vanes 10 .
图中：电机1、轮毂2、叶片3、弧形外导壁4、环形内导壁5、中间导叶6、弧形槽61、矩形槽62、内引射通道7、内引射通道进口71、内引射通道出口72、外增压稳流通道8、外增压稳流通道进口段80、外增压稳流通道第一出口段81、外增压稳流通道第二出口段82、固定导叶9、活动导叶10、球形凸起101、矩形凸起102、叶轮盖环11、内引射通道进口71与中间导叶6前缘之间的距离L1、内引射通道出口72与中间导叶6后缘之间距离L2、内引射通道进口71与水平轴线的夹角A、内引射通道出口72与水平轴线的夹角B、外增压稳流通道第二出口段82与水平轴线的夹角C、叶轮的进口半径R。In the figure: motor 1, hub 2, blade 3, arc-shaped outer guide wall 4, annular inner guide wall 5, intermediate guide vane 6, arc-shaped groove 61, rectangular groove 62, inner ejection channel 7, inner ejection channel inlet 71, inner ejection channel outlet 72, external boost steady flow channel 8, outer boost steady flow channel inlet section 80, outer boost steady flow channel first outlet section 81, outer boost steady flow channel second outlet section 82, fixed guide vane 9, movable guide vane 10, spherical protrusion 101, rectangular protrusion 102, impeller cover ring 11, distance L1 between inner ejection channel inlet 71 and leading edge of intermediate guide vane 6, distance L2 between inner ejection channel outlet 72 and trailing edge of intermediate guide vane 6, angle A between inner ejection channel inlet 71 and horizontal axis, angle B between inner ejection channel outlet 72 and horizontal axis, angle C between second outlet section 82 of outer boost steady flow channel and horizontal axis, inlet radius R of impeller.
具体实施方式DETAILED DESCRIPTION
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. 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.
下面结合附图对本发明作进一步详细说明。The present invention will be further described in detail below in conjunction with the accompanying drawings.
如图1-4所示，一种斜流风扇导叶结构，包括电机1，电机1与轮毂2连接并驱动其旋转，轮毂2上安装有叶片3，叶片3的外缘固定在叶轮盖环11内侧；其特征在于：导叶结构包括进口导叶结构和回流导叶结构；进口导叶结构固定于壳体上，其包括弧形外导壁4和环形内导壁5，弧形外导壁4与环形内导壁5通过中间导叶6连接；回流导叶结构包括固定导叶9和活动导叶10，固定导叶9安装于弧形外导壁4的外侧，活动导叶10安装于叶轮盖环11的入口内侧，固定导叶9与活动导叶10紧密配合对气体导流增压；进口导叶结构还包括内引射通道7和外增压稳流通道8，其中内引射通道7沿着环形内导壁5的管壁内部设置，内引射通道7为弧形流道，内引射通道进口71位于中间导叶6前缘侧之前，内引射通道进口71与中间导叶6前缘之间的距离为L1，在气流进口方向上，内引射通道进口71与水平轴线的夹角为A，内引射通道出口72位于中间导叶6后缘侧之后，内引射通道出口72与中间导叶6后缘之间的距离为L2，在气流出口方向上，内引射通道出口72与水平轴线的夹角为B；外增压稳流通道8沿着弧形外导壁4的管壁内部设置，其包括外增压稳流通道进口段80、外增压稳流通道第一出口段81、外增压稳流通道第二出口段82，外增压稳流通道进口段80与水平轴线平行，进口位于弧形外导壁4的内侧壁，外增压稳流通道第一出口段81与水平轴线平行，第一出口位于弧形外导壁4的外侧壁且第一出口的气流出口方向正对固定导叶9，外增压稳流通道第二出口段82与水平轴线的夹角为C，外增压稳流通道第二出口段82的出口位于弧形外导壁4的出口侧端壁；其中L1：L2＝0.2-0.8，A+B＝30°-60°，B＝(1.1-1.5)C。As shown in Fig. 1-4, a guide vane structure of a diagonal flow fan includes a motor 1, which is connected to a hub 2 and drives it to rotate. A blade 3 is installed on the hub 2, and the outer edge of the blade 3 is fixed to the inner side of the impeller cover ring 11; it is characterized in that: the guide vane structure includes an inlet guide vane structure and a return guide vane structure; the inlet guide vane structure is fixed to the shell, and includes an arc-shaped outer guide wall 4 and an annular inner guide wall 5, and the arc-shaped outer guide wall 4 and the annular inner guide wall 5 are connected by an intermediate guide vane 6; the return guide vane structure includes a fixed guide vane 9 and a movable guide vane 10, and the fixed guide vane 9 is installed On the outside of the arc-shaped outer guide wall 4, the movable guide vane 10 is installed on the inner side of the inlet of the impeller cover ring 11, and the fixed guide vane 9 and the movable guide vane 10 are closely matched to guide and pressurize the gas; the inlet guide vane structure also includes an inner injection channel 7 and an outer pressurization stabilizing flow channel 8, wherein the inner injection channel 7 is arranged along the inner wall of the annular inner guide wall 5, the inner injection channel 7 is an arc-shaped flow channel, the inner injection channel inlet 71 is located in front of the leading edge side of the intermediate guide vane 6, and the distance between the inner injection channel inlet 71 and the leading edge of the intermediate guide vane 6 is L1. In the direction of the airflow inlet, the inner injection channel The angle between the channel inlet 71 and the horizontal axis is A, the inner ejection channel outlet 72 is located behind the trailing edge of the intermediate guide vane 6, the distance between the inner ejection channel outlet 72 and the trailing edge of the intermediate guide vane 6 is L2, and in the airflow outlet direction, the angle between the inner ejection channel outlet 72 and the horizontal axis is B; the external boost flow stabilizing channel 8 is arranged along the inner wall of the arc-shaped outer guide wall 4, and includes an external boost flow stabilizing channel inlet section 80, an external boost flow stabilizing channel first outlet section 81, and an external boost flow stabilizing channel second outlet section 82, and the external boost flow stabilizing channel inlet section 80 is connected to the outer boost flow stabilizing channel. The first outlet section 81 of the external boost steady flow channel is parallel to the horizontal axis, the first outlet is located on the outer side wall of the arc-shaped outer guide wall 4 and the airflow outlet direction of the first outlet is directly opposite to the fixed guide vane 9, the angle between the second outlet section 82 of the external boost steady flow channel and the horizontal axis is C, and the outlet of the second outlet section 82 of the external boost steady flow channel is located on the outlet side end wall of the arc-shaped outer guide wall 4; wherein L1:L2=0.2-0.8, A+B=30°-60°, B=(1.1-1.5)C.
进一步地，L1：L2＝0.5，且L1+L2＝(0.1-0.3)R，其中R为叶轮的进口半径。Further, L1:L2=0.5, and L1+L2=(0.1-0.3)R, where R is the inlet radius of the impeller.
进一步地，A+B＝50°。Further, A+B=50°.
进一步地，B＝1.2C。Further, B=1.2C.
进一步地，A+C＝20°-50°。Further, A+C=20°-50°.
进一步地，中间导叶6与环形内导壁5连接的一端设置有矩形槽62。Furthermore, a rectangular groove 62 is provided at one end of the intermediate guide vane 6 connected to the annular inner guide wall 5 .
进一步地，中间导叶6与弧形外导壁4连接的一端设置有弧形槽61。Furthermore, an arc-shaped groove 61 is provided at one end of the intermediate guide vane 6 connected to the arc-shaped outer guide wall 4 .
进一步地，活动导叶10前缘设置有球形凸起101，固定导叶9设置有与球形凸起101相配合的弧形凹槽。Furthermore, a spherical protrusion 101 is provided on the leading edge of the movable guide vane 10 , and an arc-shaped groove matching with the spherical protrusion 101 is provided on the fixed guide vane 9 .
进一步地，活动导叶10前缘设置有矩形凸起102，固定导叶9设置有与矩形凸起102相配合的矩形凹槽。Furthermore, a rectangular protrusion 102 is provided on the leading edge of the movable guide vane 10 , and a rectangular groove matching with the rectangular protrusion 102 is provided on the fixed guide vane 9 .
进一步地，球形凸起101和矩形凸起102交错分布在活动导叶10前缘。Furthermore, the spherical protrusions 101 and the rectangular protrusions 102 are alternately distributed on the leading edge of the movable guide vane 10 .
本发明的一种斜流风扇导叶结构，其中导叶结构包括进口导叶结构和回流导叶结构；进口导叶结构包括弧形外导壁4和环形内导壁5，弧形外导壁4与环形内导壁5通过中间导叶6连接；回流导叶结构包括固定导叶9和活动导叶10，进口导叶结构还包括内引射通道7和外增压稳流通道8，内引射通道7沿着环形内导壁5的管壁内部设置，外增压稳流通道8沿着弧形外导壁4的管壁内部设置，其包括外增压稳流通道进口段80、外增压稳流通道第一出口段81、外增压稳流通道第二出口段82。由于对斜流风扇导叶结构进行了改进，改善流动特性，降低噪音，提高了输送效率。The invention discloses a diagonal flow fan guide vane structure, wherein the guide vane structure includes an inlet guide vane structure and a return guide vane structure; the inlet guide vane structure includes an arc-shaped outer guide wall 4 and an annular inner guide wall 5, and the arc-shaped outer guide wall 4 is connected to the annular inner guide wall 5 through an intermediate guide vane 6; the return guide vane structure includes a fixed guide vane 9 and a movable guide vane 10, and the inlet guide vane structure also includes an inner ejection channel 7 and an outer boost flow stabilization channel 8, the inner ejection channel 7 is arranged along the inner wall of the annular inner guide wall 5, and the outer boost flow stabilization channel 8 is arranged along the inner wall of the arc-shaped outer guide wall 4, and includes an outer boost flow stabilization channel inlet section 80, an outer boost flow stabilization channel first outlet section 81, and an outer boost flow stabilization channel second outlet section 82. Due to the improvement of the diagonal flow fan guide vane structure, the flow characteristics are improved, the noise is reduced, and the conveying efficiency is improved.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410738854.3ACN118532348B (en) | 2024-06-07 | 2024-06-07 | A guide blade structure of a diagonal flow fan |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410738854.3ACN118532348B (en) | 2024-06-07 | 2024-06-07 | A guide blade structure of a diagonal flow fan |
| Publication Number | Publication Date |
|---|---|
| CN118532348Atrue CN118532348A (en) | 2024-08-23 |
| CN118532348B CN118532348B (en) | 2025-01-03 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410738854.3AActiveCN118532348B (en) | 2024-06-07 | 2024-06-07 | A guide blade structure of a diagonal flow fan |
| Country | Link |
|---|---|
| CN (1) | CN118532348B (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118273978A (en)* | 2024-05-08 | 2024-07-02 | 浙江铭振电子股份有限公司 | A volute air duct of a diagonal flow fan |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110529410A (en)* | 2019-08-09 | 2019-12-03 | 西安交通大学 | A kind of flow-mixing blower fan |
| CN111734685A (en)* | 2020-07-07 | 2020-10-02 | 江西省子轩科技有限公司 | Ventilation device |
| CN111734684A (en)* | 2020-07-07 | 2020-10-02 | 江西省子轩科技有限公司 | Heat radiation module of electric or electronic device |
| CN217761449U (en)* | 2022-05-27 | 2022-11-08 | 珠海格力电器股份有限公司 | Mixed flow fan and ducted air conditioner |
| CN117967592A (en)* | 2024-02-21 | 2024-05-03 | 浙江金菱制冷工程有限公司 | Diagonal flow fan of cooling tower |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110529410A (en)* | 2019-08-09 | 2019-12-03 | 西安交通大学 | A kind of flow-mixing blower fan |
| CN111734685A (en)* | 2020-07-07 | 2020-10-02 | 江西省子轩科技有限公司 | Ventilation device |
| CN111734684A (en)* | 2020-07-07 | 2020-10-02 | 江西省子轩科技有限公司 | Heat radiation module of electric or electronic device |
| CN217761449U (en)* | 2022-05-27 | 2022-11-08 | 珠海格力电器股份有限公司 | Mixed flow fan and ducted air conditioner |
| CN117967592A (en)* | 2024-02-21 | 2024-05-03 | 浙江金菱制冷工程有限公司 | Diagonal flow fan of cooling tower |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118273978A (en)* | 2024-05-08 | 2024-07-02 | 浙江铭振电子股份有限公司 | A volute air duct of a diagonal flow fan |
| CN118273978B (en)* | 2024-05-08 | 2025-01-03 | 浙江铭振电子股份有限公司 | A volute air duct of a diagonal flow fan |
| Publication number | Publication date |
|---|---|
| CN118532348B (en) | 2025-01-03 |
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