TWI662195B - Blade structure and impeller composed of blade structure - Google Patents

Abstract

A blade structure and an impeller composed of the blade structure. The blade structure has a plate-like plate body, which integrally extends along an extending direction, and a first pressurizing in sequence is formed on the plate body. Section, a first diversion section, a second compression section, a second diversion section, and a third compression section, wherein the first compression section, the second compression section, and the third compression section The segments are straight, and a straight connecting portion is protruded from each of two opposite sides of the first, second and third pressurizing segments, and the first The diversion section and the second diversion section are respectively curved along the same central arc to form a curved arc, and the impeller composed of the blade structure can perform multi-stage pressurization of the gas to enhance its airflow and further achieve Greatly enhance the purpose of sucking wind.

Description

Blade structure and impeller composed of blade structure

The present invention relates to the structure of fan blades, and particularly to a blade structure and an impeller composed of the blade structure.

According to the conventional centrifugal impeller structure, as shown in FIG. 6, it mainly has two side disks 61 arranged symmetrically, and a number of curved blades 62 are arranged in the ring between the two side disks 61. These curved blades 62 only have a single radian and cannot provide the function of additional pressure. Therefore, in actual operation and use, the suction of wind is not ideal and cannot meet the requirements of large suction volume and wind pressure.

Furthermore, because the ends of these curved blades 62 are curved, they cannot effectively exhaust gas completely during operation, and it is easy to form turbulence at the end positions, which in turn will cause large vibrations of the blades. Annoying noises are generated, and the vibration and noise of these conditions will become more obvious as the blades rotate faster.

In view of this, therefore, how to improve the shortcomings of the conventional curved blade 62 and provide a blade structure with large wind absorption and which can meet the requirements of low noise is the primary problem to be solved by the present invention.

The main object of the present invention is to provide a blade structure and an impeller composed of the blade structure, which have a large suction power and can effectively reduce vibration to reduce noise.

In order to achieve the foregoing object, the present invention provides a blade structure having a plate-like sheet body, the sheet body integrally extending along an extending direction, and a first pressing force sequentially formed on the sheet body is formed. Section, a first diversion section, a second compression section, a second diversion section, and a third compression section, wherein the first compression section, the second compression section, and the third compression section The segments are straight, and a straight connecting portion is protruded from each of two opposite sides of the first, second and third pressurizing segments, and the first The diversion section and the second diversion section are respectively curved in a curved shape along the same central arc.

Preferably, the first pressurizing section, the first diversion section, the second pressurizing section, the second diversion section, and the third pressurizing section each have a length extending along the extension direction, and The lengths of the first diversion section and the second diversion section are respectively longer than the lengths of the first pressurized section, the second pressurized section, and the third pressurized section.

Furthermore, the first pressurizing section and the third pressurizing section are respectively located at two ends of the sheet body, and the second pressurizing section is located at the center position of the sheet body.

Furthermore, the present invention further provides an impeller, which includes: two circular side disks, which are arranged coaxially at intervals; a plurality of pieces of the body, an aliquot ring is provided between the two circular side disks, and A first pressurizing section, a first diversion section, a second pressurizing section, a second diversion section, and a third pressurizing section are sequentially formed on each sheet body in order along a direction of extension. Section, wherein the first pressurizing section, the second pressurizing section, and the third pressurizing section are respectively straight, and are in the first pressurizing section, the second pressurizing section, and the third pressurizing section. Opposite sides of the segments respectively protrude to form a straight connecting portion, and the pieces are correspondingly engaged with the two circular side plates with their connecting portions, and the first diversion segment and the first The two diversion sections are curved along curved lines along the same central arc.

Preferably, the impeller has eighteen piece bodies, and each adjacent piece body is respectively arranged between the two circular side plates at an angle of 20 degrees.

Preferably, the two circular side plates are respectively provided with a plurality of straight insertion holes corresponding to the connecting portions of the respective sheet bodies, and the respective sheet bodies are correspondingly engaged with the two circular sides with their connecting portions. The flat inserting holes of the disc enable the pieces to be positioned between the two circular side discs.

The above-mentioned objects and advantages of the present invention can be easily understood from the detailed description and accompanying drawings of selected embodiments below.

As shown in FIG. 1 and FIG. 2, the present invention provides a blade structure having a sheet body 11 having an integrated plate shape, and a first pressing force sequentially formed along the extending direction is formed on the sheet body 11. Section 111, a first diversion section 112, a second pressurized section 113, a second diversion section 114, and a third pressurized section 115, of which:

The first pressurizing section 111, the second pressurizing section 113, and the third pressurizing section 115 are respectively straight, and are formed in the first pressurizing section 111, the second pressurizing section 113, and the third pressurizing section. The opposite sides of the pressurizing section 115 are integrally protruded to form a straight connecting portion 12 respectively, and the first diversion section 112 and the second diversion section 114 are respectively curved along the same central arc R to form a curved arc. shape.

The first pressurizing section 111 and the third pressurizing section 115 are respectively located at both ends of the sheet body 11, and the second pressurizing section 113 is located at the center position of the sheet body 11, and the first pressurizing section 111, the first diversion section 112, the second pressurized section 113, the second diversion section 114 and the third pressurized section 115 each have a length L1, L2, L3, L4 extending along the extension direction. , L5, the lengths L2 and L4 of the first diversion section 112 and the second diversion section 114 are equal, and the lengths L2 and L4 of the first diversion section 112 and the second diversion section 114 are greater than the first diversion section 112 respectively. The lengths L1, L3, and L5 of a pressurizing section 111, the second pressurizing section 113, and the third pressurizing section 115.

With the blade structure composed of the above structural features, the first pressure section 111, the second pressure section 113, and the third pressure section 115, which are straight, can provide the blade effectively during operation. Performing a single tap and pressurizing action on the air flow, and then multi-stage pressurizing action on the gas to increase its air output and further achieve the purpose of greatly increasing the suction wind; and because the first diversion section 112 The lengths L2 and L4 of the second diversion section 114 are longer than the lengths L1, L3, and L5 of the first compression section 111, the second compression section 113, and the third compression section 115, respectively. The pressurizing action provided by the pressurizing section 111, the second pressurizing section 113, and the third pressurizing section 115 does not affect the smoothness of the gas flow during the blade operation.

Next, as shown in FIGS. 3 to 5, the present invention further provides an impeller 20 composed of the above-mentioned blade structure. The impeller 20 is mainly composed of two circular side disks 21 and a plurality of rings are arranged on the two circular side disks 21. The interval sheet 11 is composed of:

The two circular side plates 21 are symmetrically arranged at a concentric interval, and the pieces 11 are arranged between the two circular side plates 21 in an equally curved surface, and are respectively oriented toward the two circular side plates. The axis direction of 21 is arranged in a ring shape, and a plurality of straight insertion holes 22 corresponding to the connecting portions 12 on both sides of each sheet body 11 are respectively formed on the two circular side plates 21, and the sheet bodies 11 The connecting portions 12 on both sides are respectively engaged with the straight insertion holes 22 of the two circular side plates 21, so that the pieces 11 are positioned between the two circular side plates 21, and the two The straight side insert 21 provided on the circular side plate 21 corresponding to each connecting portion 12 has the advantage of being easy to process and assemble, and the impeller 20 has eighteen pieces 11 and each adjacent piece 11 Rings are divided between the two circular side plates 21 at an angle of 20 degrees, so that an air flow channel 23 can be formed between each adjacent sheet body 11.

When the impeller 20 is driven and starts to rotate, the gas can be caused to enter the air flow channel 23 of each adjacent sheet body 11 and pass through the flapping of the first pressurizing section 111 which is flat and straight. So that the gas can be pressurized in the first stage, and the pressurized gas in the first stage then passes through the first diversion section 112 for diversion and enters the second pressurization section 113 for the second time. The pressure of the segment is finally passed through the second guide segment 114, and then the third pressure segment 115 can be quickly discharged after being tapped and pressurized. In this way, it can be achieved by increasing its air output. Greatly enhance the purpose of sucking wind.

Moreover, due to the blade structure provided by the present invention, the first pressing section 111 and the third pressing section 115 which are straight are respectively located at both ends of the sheet body 11 and have a straight shape through them. The gas can be effectively discharged under pressure, thereby making it difficult to form turbulence at the end position during operation, and further reducing the vibration and noise generated by the blade during operation.

In addition, the impeller 20 provided by the present invention is provided with up to eighteen pieces of the body at a 20-degree angle between the two circular side plates 21, and by increasing the number of each piece 11 That is, the air output of the impeller 10 provided by the present invention can be further enhanced.

In summary, when those skilled in the art can be made aware that the present invention can indeed achieve the aforementioned purpose, it has indeed complied with the provisions of the Patent Law, and therefore filed an application in accordance with the law.

(Learning section)

61 · ‧‧Side plate

62‧‧‧ curved blade

(Part of the invention)

11‧‧‧ pieces

111 · ‧‧The first pressurizing section

112 · ‧‧ first diversion section

113 · ‧‧Second pressurizing section

114 · ‧‧Second Diversion Section

115 · ‧‧The third pressurized section

12‧‧‧ Connection Department

R‧‧‧ center arc

L1, L2, L3, L4, L5‧‧‧ length

21‧‧‧ round side plate

22‧‧‧Straight caulking

23‧‧‧airflow channel

FIG. 1 is a three-dimensional appearance view of a blade structure provided by the present invention. Figure 2 is a side view of the blade structure provided by the present invention. FIG. 3 is an exploded view of the impeller provided by the present invention. FIG. 4 is a perspective view of the impeller provided in the present invention after assembly. FIG. 5 is a schematic structural diagram of an impeller provided by the present invention. Figure 6 shows the structure of a conventional centrifugal impeller.

Claims (8)

A blade structure has a plate-like sheet body, and a first pressurizing section, a first diversion section, and a second pressurizing section which are sequentially connected along an extending direction are formed on the sheet body. A second diversion section and a third pressurization section, wherein the first pressurization section, the second pressurization section and the third pressurization section are respectively straight, and are connected to the first pressurization section; The opposite sides of the second pressurizing section and the third pressurizing section respectively protrude to form a straight connecting portion, and the first diversion section and the second diversion section are respectively along the same circle center. The curve is curved. The blade structure according to claim 1, wherein the first pressurizing section, the first guide section, the second pressurizing section, the second guide section, and the third pressurizing section each have an edge The length extending in the extension direction, and the lengths of the first diversion section and the second diversion section are greater than the lengths of the first pressurized section, the second pressurized section, and the third pressurized section, respectively. The blade structure according to claim 2, wherein the first pressurizing section and the third pressurizing section are respectively located at both ends of the sheet body, and the second pressurizing section is located at the center position of the sheet body. An impeller includes: two circular side disks, arranged coaxially at intervals; a plurality of pieces of the body, an aliquot ring is provided between the two circular side disks, and along each of the pieces are formed along a The extension direction is sequentially connected to a first pressurizing section, a first diversion section, a second pressurizing section, a second diversion section, and a third pressurizing section, wherein the first pressurizing section, The second pressurizing section and the third pressurizing section are respectively straight, and are respectively formed on the opposite sides of the first pressurizing section, the second pressurizing section, and the third pressurizing section to form a protrusion. The connecting portions are straight, and each piece is correspondingly engaged with the two circular side plates with their connecting portions, and the first diversion section and the second diversion section are respectively along the same center arc line. The curve is curved. The impeller according to claim 4, wherein the first pressurizing section, the first guide section, the second pressurizing section, the second guide section, and the third pressurizing section each have an edge along the The length extending in the extension direction, and the lengths of the first diversion section and the second diversion section are respectively longer than the lengths of the first pressurized section, the second pressurized section, and the third pressurized section. The impeller according to claim 5, wherein the first pressurizing section and the third pressurizing section are respectively located at both ends of the sheet body, and the second pressurizing section is located at the center position of the sheet body. The impeller according to claim 4, wherein the impeller has eighteen pieces, and each adjacent piece is disposed between the two circular side plates at an angle of 20 degrees. The impeller according to claim 4, wherein the two circular side plates are respectively provided with a plurality of straight insertion holes corresponding to the connection portions of the pieces, and the pieces are correspondingly inserted by the connection portions. The straight insert holes are connected to the two circular side plates, so that the pieces are positioned between the two circular side plates.