Silicon carbide cantilever paddle

Abstract

The utility model relates to a silicon carbide cantilever paddle which comprises a paddle handle, a paddle end and a transition section located between the paddle handle and the paddle end, the transition section comprises a first area adjacent to the paddle handle, a third area adjacent to the paddle end and a second area located between the first area and the third area, and the second area and the third area are each provided with a through hole; the first area is composed of an A bottom face, an A inclined face and two A side faces. The second area comprises a bottom surface B, an inclined surface B and a side surface B; the third area comprises a lower plane, an upper plane and a C side surface connected with the lower plane and the upper plane; the included angle between the inclined plane A and the inclined plane B is 120-170 degrees, and the width of one side, close to the third area, of the inclined plane B is larger than that of the side, close to the first area, of the inclined plane B. The silicon carbide cantilever paddle is good in bearing capacity and more stable in structure.

Description

Technical Field

[0001] The present application relates to the field of new energy technology, and in particular to a silicon carbide cantilever paddle in a diffusion furnace that can be used to prepare solar panels. Background Art

[0002] Solar photovoltaic panels, also known as solar panels or solar panels, are devices that use sunlight to convert light energy into electrical energy. In its production process, the diffusion furnace is a key equipment that needs to be carried and transported by cantilever paddles to achieve the continuity of the entire production. Cantilever paddles usually need to withstand high temperatures and loads, and silicon carbide materials can remain stable in such environments. Therefore, the use of silicon carbide cantilever paddles can improve the durability and reliability of the equipment, reduce maintenance frequency, and extend service life. However, the structural bearing performance of existing silicon carbide cantilever paddles needs to be further improved. Summary of the invention

[0003] In view of the shortcomings of the prior art, the present application proposes a silicon carbide cantilever propeller with good load-bearing capacity and stable structure.

[0004] A silicon carbide cantilever propeller of the present application comprises a propeller handle, a blade end, and a transition section between the propeller handle and the blade end, wherein the transition section comprises a first area adjacent to the propeller handle, a third area adjacent to the blade end, and a second area between the first area and the third area, wherein the second area and the third area are both provided with through holes;

[0005] The first zone is composed of a bottom surface A, an inclined surface A and two side surfaces A; the second zone includes a bottom surface B, an inclined surface B and side surfaces B; the third zone includes a lower plane, an upper plane and a side surface C connecting the lower plane and the upper plane;

[0006] One side of the A slope is connected to the paddle handle, and the other side is connected to the B slope. The end of the B slope away from the A slope is connected to the upper plane; and the angle between the A slope and the B slope is 120~170°, and the width of the B slope close to the third zone is greater than its width close to the first zone.

[0007] Furthermore, the A side of the silicon carbide cantilever paddle described in the present application and the B side which is on the same horizontal plane as the A side both extend upward to form a reinforcing wall, the upper surface of the reinforcing wall is a plane whose two ends are respectively connected to the paddle handle and the upper plane, and the width of the plane close to the upper plane is greater than or equal to its width close to the paddle handle.

[0008] Furthermore, the length of the transition section of the silicon carbide cantilever paddle described in the present application accounts for 1 / 8 to 1 / 5 of the length of the entire silicon carbide cantilever paddle.

[0009] Furthermore, the width of the upper plane of the silicon carbide cantilever paddle described in the present application is equal to the sum of the width of the B inclined surface close to the third zone and the width of the plane close to the upper plane, and the width of the upper plane is greater than the width of the bearing surface at the blade end.

[0010] Furthermore, grooves are provided on the two opposite C-side surfaces of the silicon carbide cantilever paddle described in the present application, and a buffer zone is also provided between the first zone and the paddle handle.

[0011] Furthermore, the bottom surface A, the bottom surface B and the lower plane of the silicon carbide cantilever paddle described in the present application constitute the bottom surface of the transition section, and the paddle handle and the blade end include side surfaces that are on the same horizontal plane as the bottom surface of the transition section.

[0012] Furthermore, the blade end of the silicon carbide cantilever paddle described in the present application is a single-layer structure or a double-layer structure.

[0013] Furthermore, a weight-reducing hole is provided on the blade end of the silicon carbide cantilever propeller described in the present application.

[0014] Furthermore, the weight-reducing holes of the silicon carbide cantilever paddle described in the present application are one or more holes.

[0015] Furthermore, the weight-reducing holes of the silicon carbide cantilever paddle described in the present application are weight-reducing holes arranged in one or more rows.

[0016] Beneficial effects of this application:

[0017] The silicon carbide cantilever paddle of the present application firstly has a special structural design of the transition section, which, on the one hand, greatly enhances the load-bearing capacity and improves the product qualification rate; on the other hand, it also extends the service life of the silicon carbide cantilever paddle from the original 250 days to 360 days. Secondly, the structural design of the transition section and the blade end, especially the grooves on the C side, not only makes the entire silicon carbide cantilever paddle form a cavity structure with less material and low cost, but also utilizes the circulation of airflow to improve the uniformity of heat flow during the use of the diffusion furnace. In addition, the structure of the silicon carbide cantilever paddle described in the present application is also more conducive to the release of stress, making the overall structure of the silicon carbide cantilever paddle more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the silicon carbide cantilever paddle described in this application;

[0019] Figure 2 This is a test diagram of the silicon carbide cantilever propeller described in this application;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the blade end of the silicon carbide cantilever paddle described in Example 1 of the present application;

[0021] Figure 4This is a schematic diagram of the cross-sectional structure of the blade end of the silicon carbide cantilever paddle described in Example 2 of the present application;

[0022] Wherein: 100, paddle handle, 200, paddle blade end, 300, transition section;

[0023] 301, zone 1, 302, zone 2, 303, zone 3, 304, through hole, 305, reinforced wall;

[0024] 3011, A bottom surface, 3012, A inclined surface, 3013, A side surface, 3021, B bottom surface, 3022, B inclined surface, 3023, B side surface, 3031, lower plane, 3032, upper plane, 3033, C side surface, 3034, groove 3051, plane. DETAILED DESCRIPTION

[0025] To make the purpose, technical solution and advantages of the specific implementation of the present application clearer, the technical solution of the specific implementation of the present application will be described clearly and completely below. If no specific conditions are specified in the specific implementation, the conventional conditions or the conditions recommended by the manufacturer shall be followed.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art. The terms used herein in the specification are only for the purpose of describing specific embodiments and are not intended to limit the present application. The term "and / or" used herein includes any and all combinations of one or more related listed items. Specific implementation method one:

[0028] A silicon carbide cantilever propeller, comprising a propeller handle 100, a blade end 200, and a transition section 300 located between the propeller handle 100 and the blade end 200, wherein the transition section 300 comprises a first area 301 adjacent to the propeller handle 100, a third area 303 adjacent to the blade end 200, and a second area 302 located between the first area 301 and the third area 303, wherein both the second area 302 and the third area 303 are provided with a through hole 304;

[0029] The first zone 301 is composed of an A bottom surface 3011, an A inclined surface 3012 and two A side surfaces 3103; the second zone 302 includes a B bottom surface 3021, a B inclined surface 3202 and a B side surface 3203; the third zone 303 includes a lower plane 3031, an upper plane 3032 and a C side surface 3033 connecting the lower plane 3031 and the upper plane 3032;

[0030] One side of the A slope 3012 is connected to the paddle handle 100, and the other side is connected to the B slope 3202, and the end of the B slope 3202 away from the A slope 3012 is connected to the upper plane 3032; and the angle between the A slope 3012 and the B slope 3202 is 120~170°, and the width of the B slope 3202 close to the third area 303 is greater than its width close to the first area 301.

[0031] In other embodiments of the present application, the A side 3103 and the B side 3203 which is on the same horizontal plane as the A side 3103 both extend upward to form a reinforcing wall 305, and the upper surface of the reinforcing wall 305 is a plane 3051 whose two ends are respectively connected to the paddle handle 100 and the upper plane 3032, and the width of the plane 3051 close to the upper plane 3032 is greater than or equal to its width close to the paddle handle 100.

[0032] In other embodiments of the present application, the length of the transition section 300 accounts for 1 / 8 to 1 / 5 of the length of the entire silicon carbide cantilever paddle.

[0033] In other embodiments of the present application, the width of the upper plane 3032 is equal to the sum of the width of the B slope 3202 close to the third zone 303 and the width of the plane 3051 close to the upper plane 3032, and the width of the upper plane 3032 is greater than the bearing surface width of the blade end 200.

[0034] In other embodiments of the present application, grooves 3034 are further provided on the two opposite C-side surfaces 3033 , and a buffer zone is further provided between the first area 301 and the paddle handle 100 .

[0035] In other embodiments of the present application, the A bottom surface 3011, the B bottom surface 3021 and the lower plane 3031 constitute the bottom surface of the transition section 300, and the paddle handle 100 and the blade end 200 include side surfaces that are on the same horizontal plane as the bottom surface of the transition section 300.

[0036] In other embodiments of the present application, the blade end 200 is a single-layer structure or a double-layer structure.

[0037] In other embodiments of the present application, a weight-reducing hole is provided on the blade end 200 .

[0038] In other embodiments of the present application, the weight-reducing hole is one or more holes.

[0039] In other embodiments of the present application, the weight-reducing holes are weight-reducing holes arranged in one or more rows. Embodiment 1:

[0040] like Figure 1~Figure 3As shown, a silicon carbide cantilever propeller of the present application includes a propeller handle 100, a blade end 200, and a transition section 300 located between the propeller handle 100 and the blade end 200, wherein the transition section 300 includes a first area 301 adjacent to the propeller handle 100, a third area 303 adjacent to the blade end 200, and a second area 302 located between the first area 301 and the third area 303, wherein both the second area 302 and the third area 303 are provided with a through hole 304;

[0041] The first zone 301 is composed of an A bottom surface 3011, an A inclined surface 3012 and two A side surfaces 3103; the second zone 302 includes a B bottom surface 3021, a B inclined surface 3202 and a B side surface 3203; the third zone 303 includes a lower plane 3031, an upper plane 3032 and a C side surface 3033 connecting the lower plane 3031 and the upper plane 3032;

[0042] One side of the A slope 3012 is connected to the paddle handle 100, and the other side is connected to the B slope 3202, and the end of the B slope 3202 away from the A slope 3012 is connected to the upper plane 3032; and the angle between the A slope 3012 and the B slope 3202 is 120~170°, and the width of the B slope 3202 close to the third area 303 is greater than its width close to the first area 301.

[0043] In the present embodiment 1, the A side surface 3103 and the B side surface 3203 on the same horizontal plane as the A side surface 3103 both extend upward to form a reinforcing wall 305, the upper surface of the reinforcing wall 305 is a plane 3051 whose two ends are respectively connected to the propeller handle 100 and the upper plane 3032, and the width of the plane 3051 on the side close to the upper plane 3032 is greater than or equal to its width close to the propeller handle 100. The width of the upper plane 3032 is equal to the sum of the width of the B inclined surface 3202 on the side close to the third area 303 and the width of the plane 3051 on the side close to the upper plane 3032, and the width of the upper plane 3032 is greater than the width of the bearing surface of the blade end 200.

[0044] In this embodiment 1, the length of the transition section 300 accounts for 1 / 6 of the length of the entire silicon carbide cantilever paddle, the length of the paddle handle 100 is 1294 mm, the length of the blade end 200 is 2556 mm, and the length of the transition section 300 is 654 mm. The angle between the A bevel 3012 and the B bevel 3202 is 160°. The width of the B bevel 3202 on the side close to the third zone 303 and its width close to the first zone 301 are 17 mm and 5 mm respectively, the width of the plane 3051 on the side close to the upper plane 3032 and its width close to the paddle handle 100 are 13 mm and 13 mm respectively; the width of the upper plane 3032 is 30 mm, and the width of the bearing surface of the blade end 200 is 22 mm. A groove 3034 is also provided on the two opposite C side surfaces 3033, and a buffer zone is also included between the first zone 301 and the paddle handle 100. The A bottom surface 3011 , the B bottom surface 3021 and the lower plane 3031 constitute the bottom surface of the transition section 300 , and the paddle handle 100 and the blade end 200 include side surfaces that are in the same horizontal plane as the bottom surface of the transition section 300 .

[0045] In this embodiment 1, the blade end 200 is a single-layer structure. The blade end 200 is provided with weight-reducing holes, and the weight-reducing holes are arranged in a row. Embodiment 2:

[0046] The difference between the second embodiment and the first embodiment is that the blade end 200 is a double-layer structure. Figure 4 shown.

[0047] The silicon carbide cantilever propellers in Examples 1 and 2 of the present application were tested separately to simulate the customer's usage scenario. The boat support was placed on the cantilever propeller, with a weight of 120 kg. After stabilization, it was sent into the furnace at a uniform speed for 30 minutes of testing and safely removed. The temperature of the hot load furnace was not less than 950°C. The test results were all qualified.

[0048] The embodiments described above are part of the embodiments of the present application, rather than all of the embodiments. The detailed description of the embodiments of the present application is not intended to limit the scope of the present application for protection, but merely represents the selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

Claims

1. A silicon carbide cantilever propeller, comprising a propeller handle (100), a blade end (200), and a transition section (300) located between the propeller handle (100) and the blade end (200), characterized in that: The transition section (300) comprises a first area (301) adjacent to the paddle handle (100), a third area (303) adjacent to the paddle blade end (200), and a second area (302) located between the first area (301) and the third area (303), wherein both the second area (302) and the third area (303) are provided with through holes (304); The first zone (301) is composed of an A bottom surface (3011), an A inclined surface (3012) and two A side surfaces (3103); the second zone (302) includes a B bottom surface (3021), a B inclined surface (3202) and a B side surface (3203); the third zone (303) includes a lower plane (3031), an upper plane (3032) and a C side surface (3033) connecting the lower plane (3031) and the upper plane (3032); One side of the A slope (3012) is connected to the paddle handle (100), and the other side is connected to the B slope (3202); one end of the B slope (3202) away from the A slope (3012) is connected to the upper plane (3032); and the angle between the A slope (3012) and the B slope (3202) is 120-170°, and the width of the B slope (3202) on the side close to the third zone (303) is greater than the width of the B slope (3202) on the side close to the first zone (301).

2. The silicon carbide cantilever propeller according to claim 1, characterized in that: The A side surface (3103) and the B side surface (3203) which is on the same horizontal plane as the A side surface (3103) both extend upward to form a reinforcing wall (305); the upper surface of the reinforcing wall (305) is a plane (3051) whose two ends are respectively connected to the paddle handle (100) and the upper plane (3032); the width of the plane (3051) on the side close to the upper plane (3032) is greater than or equal to its width close to the paddle handle (100).

3. The silicon carbide cantilever propeller according to claim 2, characterized in that: The length of the transition section (300) accounts for 1 / 8 to 1 / 5 of the length of the entire silicon carbide cantilever paddle.

4. The silicon carbide cantilever propeller according to claim 3, characterized in that: The width of the upper plane (3032) is equal to the sum of the width of the B inclined surface (3202) on the side close to the third zone (303) and the width of the plane (3051) on the side close to the upper plane (3032), and the width of the upper plane (3032) is greater than the width of the bearing surface of the blade end (200).

5. The silicon carbide cantilever propeller according to claim 4, characterized in that: Grooves (3034) are also provided on the two opposite C-side surfaces (3033), and a buffer zone is also provided between the first area (301) and the paddle handle (100).

6. The silicon carbide cantilever propeller according to claim 5, characterized in that: The A bottom surface (3011), the B bottom surface (3021) and the lower plane (3031) constitute the bottom surface of the transition section (300), and the paddle handle (100) and the paddle blade end (200) include side surfaces that are in the same horizontal plane as the bottom surface of the transition section (300).

7. The silicon carbide cantilever propeller according to any one of claims 1 to 6, characterized in that: The blade end (200) is a single-layer structure or a double-layer structure.

8. The silicon carbide cantilever paddle according to claim 7, characterized in that: A weight-reducing hole is provided on the blade end (200).

9. The silicon carbide cantilever propeller according to claim 8, characterized in that: The weight-reducing hole is one or more holes.

10. The silicon carbide cantilever paddle according to claim 9, characterized in that: The weight-reducing holes are weight-reducing holes arranged in one or more rows.

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