CN212051728U

CN212051728U - Source bottle for solar cell diffusion

Info

Publication number: CN212051728U
Application number: CN201922017927.7U
Authority: CN
Inventors: 庄艳; 王守志; 黄国平; 吴少梅
Original assignee: CECEP Solar Energy Technology Zhenjiang Co Ltd
Current assignee: CECEP Solar Energy Technology Zhenjiang Co Ltd
Priority date: 2019-11-20
Filing date: 2019-11-20
Publication date: 2020-12-01
Anticipated expiration: 2029-11-20

Abstract

The utility model discloses a source bottle for solar cell diffusion, including cylindrical source bottle body, intake pipe, outlet duct, first baffle and baffle, the inside both sides of source bottle body are arranged respectively in to intake pipe and outlet duct, first baffle is arranged in and is close to inside the source bottle body of intake pipe side to along installing in the slope with source bottle body inside wall junction B, set up the through-hole on the first baffle, the intake pipe utilizes the through-hole passes first baffle, set up the first waterlogging caused by excessive rainfall seam that extends to source bottle body inside wall direction on the first baffle, the baffle is installed on the source bottle body bottom surface of first baffle below. The utility model discloses install first baffle and second baffle in current bottle, increased the contact time in gaseous and diffusion source, increased the amount that gaseous diffusion source was carried, when diffusion source volume is less, also can guarantee gaseous diffusion source and carry the volume, reduced the influence to the diffusion effect.

Description

Source bottle for solar cell diffusion

Technical Field

The utility model relates to a solar cell diffusion field, concretely relates to source bottle for solar cell diffusion.

Background

The diffusion is a heart process of the solar cell, and the efficiency of the solar cell is directly influenced by the quality of the diffusion. At present, a method of carrying source gas with high-purity nitrogen gas for diffusion is adopted in the industry, namely liquid phosphorus oxychloride is stored in a source bottle, and high-purity nitrogen gas carries phosphorus source steam to enter a furnace tube for diffusion when passing through a liquid phosphorus source. The current source bottle for diffusion in the industry as shown in figure 1 comprises a cylindrical phosphorus source body 11, an air inlet pipe 12 and an air outlet pipe 13. The positions and lengths of the inlet pipe 12 and the outlet pipe 13 are fixed.

The air inlet pipe 12 is provided with only one outlet, high-purity nitrogen enters liquid insufficiently, and carried phosphorus sources are limited. The liquid level of phosphorus oxychloride in the source bottle is reduced along with the consumption of the process, the contact area between the high-purity nitrogen entering the source bottle and the liquid level is reduced, so that the phosphorus source carried by the nitrogen is reduced, the diffusion effect is poor, and the product is unqualified. The phosphorus source bottle is usually replaced when the liquid level in the source bottle is lower than 2 cm. The phosphorus source is not fully utilized, so that the production cost is increased, and the residual phosphorus source is not changed in treatment, so that the pressure is brought to the environment.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: in order to overcome the defects of the prior art, the utility model provides a source bottle for solar cell diffusion.

The technical scheme is as follows: a source bottle for solar cell diffusion, including cylindrical source bottle body, intake pipe, outlet duct, first baffle and baffle, the inside both sides of source bottle body are arranged respectively in to intake pipe and outlet duct, first baffle is arranged in and is close to inside the source bottle body of intake pipe side to install along first baffle and source bottle body inside wall junction B slant, set up the through-hole on the first baffle, the intake pipe utilizes the through-hole passes first baffle, set up the first waterlogging caused by excessive rainfall seam that extends to source bottle body inside wall direction on the first baffle, the baffle is installed on the source bottle body inner bottom surface of first baffle below, the both ends of baffle and source bottle body lateral wall match and seal.

Further, comprising:

and a second baffle is arranged on the inner surface of the source bottle body at the side of the air outlet pipe, and the second baffle is obliquely upwards arranged from the connecting part A of the second baffle and the side wall of the source bottle body.

Further, comprising:

and a second leaching seam for leaking the phosphorus source into the source bottle is formed on the second baffle close to the inner side wall of the source bottle body.

Further, comprising:

the distance h1 between the connection part B of the first baffle and the inner side wall of the source bottle body and the lower bottom surface of the source bottle body is larger than zero and smaller than half of the height of the source bottle body.

Further, comprising:

the distance h2 between the joint A of the second baffle and the side wall of the source bottle body and the lower bottom surface of the source bottle body is larger than h 1.

Further, comprising:

the angle a between the corresponding oblique section of the first baffle in the source bottle body and the corresponding vertical plane of the source bottle body is larger than 90 degrees and smaller than 180 degrees.

Further, comprising:

the angle b between the corresponding oblique section of the second baffle in the source bottle body and the corresponding vertical surface of the source bottle body is larger than or equal to a and smaller than 180 degrees.

Further, comprising:

the distance d between the upper surface of the partition plate and the lower side of the first baffle plate right above the partition plate is larger than 1cm and smaller than three-fourths of the height of the source bottle body.

Has the advantages that: compared with the prior art, the utility model, it is showing the advantage and is: 1. the utility model installs the first baffle and the second baffle in the existing bottle body, increases the contact time between the gas and the diffusion source, increases the amount of the gas carrying the diffusion source, can ensure the carrying amount of the gas diffusion source when the amount of the diffusion source is less, and reduces the influence on the diffusion effect; 2. the utility model discloses installed the baffle of take the altitude additional bottom the bottle, when the diffusion source liquid level is lower, also can manually incline cylindrical source bottle, make the phosphorus source flow in left side promotion source liquid level, promoted the utilization ratio in diffusion source, it is extravagant to reduce the source.

Drawings

FIG. 1 is a schematic perspective view of a prior art diffusion source vial;

FIG. 2 is a front view of a diffusion source bottle according to the present invention;

FIG. 3 is a top view of a diffusion source bottle according to the present invention;

FIG. 4 is a top view of a partial diffusion source bottle configuration of the present invention having a first baffle;

fig. 5 is a top view of a partial diffusion source bottle structure with a second baffle according to the present invention.

Detailed Description

The present invention will be further explained below.

As shown in figure 2, the source bottle for solar cell diffusion of the utility model can not only contain phosphorus oxychloride, but also contain other diffusion sources, and all the components in the source bottle of the utility model are quartz products, which can greatly improve the phosphorus source carrying amount of nitrogen, so that the diffusion effect becomes better, generally, the height of the source bottle is 5 cm-40 cm, comprising a cylindrical source bottle body 1, an air inlet pipe 2, an air outlet pipe 3, a first baffle 4 and a baffle 5, the air inlet pipe 2 and the air outlet pipe 3 are respectively arranged at two sides of the inner part of the source bottle body 1, the length of the air outlet pipe 3 is shorter than that of the air inlet pipe 2, the first baffle 4 is arranged in the source bottle body 1 near the air inlet pipe side and is obliquely upwards arranged along the connection part B of the first baffle 4 and the inner side wall of the source bottle body 1, one end of the first baffle connected with the side wall of the source bottle is arranged in an arc shape matched with the side wall of the source bottle, the other end of the source bottle in the middle can be arranged in a rectangular shape, the first baffle 4 is provided with a through hole 41, the air inlet pipe 2 is used for enabling the through hole 41 to penetrate through the first baffle 4, air enters the source bottle from the air inlet pipe and then flows out of the air outlet pipe after passing through the first baffle 4, and the contact time of the air and a diffusion source is prolonged through the first baffle.

As shown in fig. 4 and 5, a first leaching gap 42 extending towards the inner side wall of the source bottle body 1 is formed in the first baffle 4, specifically, the first leaching gap 42 is formed at the lowest position where the first baffle is in contact with the phosphorus source bottle, the direction of the first leaching gap faces the center of the source bottle, the length of the first leaching gap is 1 cm-1/2 bottle width, the width of the first leaching gap is 0.5 mm-1 cm, when the liquid level is low, the liquid is diffused to drain into the source bottle, the baffle 5 is installed on the inner bottom surface of the source bottle body 1 below the first baffle 4, two ends of the baffle 5 are matched with the side wall of the source bottle body 1 and are sealed, and the distance d between the upper surface of the baffle 5 and the lower side of the first baffle 4 at the position right above the baffle is larger than 1cm and smaller than three quarters of the height. Through this baffle, even if when the diffusion source liquid level is lower, also have the cylindrical source bottle 1 of manual slope, make the diffusion source flow in the left side through 5 tops of baffle and promote the source liquid level, promoted the utilization ratio of diffusion source, reduce the waste of diffusion source.

On the basis, the utility model discloses a further improve diffusion efficiency, there is second baffle 6 at 1 internal surface mounting of the source bottle body of 3 sides of outlet duct, second baffle 6 is from installing in the lateral wall junction A slant with source bottle body 1, in this embodiment plan, first baffle is in the left side of source bottle, the second baffle is on the right side of source bottle, the one end that second baffle and source bottle lateral wall are connected sets up the arc shape that matches for with source bottle lateral wall, the side that the other end that is located the source bottle middle part corresponds can be the rectangle setting.

Correspondingly, a second draining seam 61 for leaking the phosphorus source into the source bottle is formed in the second baffle 6 close to the inner side wall of the source bottle body 1, specifically, the second draining seam is formed at the lowest position where the second baffle is contacted with the phosphorus source bottle, the direction of the second draining seam faces the center of the source bottle, the length of the second draining seam can be 1 cm-1/2 bottle width, and the width of the second draining seam is 0.5 mm-1 cm.

Further, in this embodiment, the distance h1 between the junction B of the first baffle 4 and the inner side wall of the source bottle body 1 and the lower bottom surface of the source bottle body 1 is greater than zero and less than half of the bottle height of the source bottle body 1. The distance h2 between the joint A of the second baffle 6 and the side wall of the source bottle body 1 and the lower bottom surface of the source bottle body 1 is larger than h 1.

Further, in the present embodiment, the angle a between the corresponding oblique section of the first baffle 4 in the source bottle body 1 and the vertical plane corresponding to the height of the source bottle body 1 is greater than 90 ° and less than 180 °, and as can be seen from fig. 2, the oblique line in the cross section and the height of the source bottle below the oblique line present an obtuse angle, and the angle of the second baffle is similar.

As shown in fig. 3, the angle b between the corresponding oblique cross section of the second baffle 6 in the source bottle body 1 and the vertical surface corresponding to the height of the source bottle body 1 is greater than or equal to a and less than 180 °, that is, the second baffle 6 is not only closer to the bottle mouth of the source bottle but also is larger towards the inclined direction of the bottle mouth, and the first baffle 4 is far away from the other end of the connection with the source bottle, and the other end of the connection with the second baffle 6, which is far away from the source bottle, is seen from the top view as having an overlapping portion, and the baffle is located between the first baffle and the second baffle, after the gas enters the source bottle from the gas inlet pipe, passes through the two baffles and then comes out from the gas outlet pipe, the staggered structure is beneficial to increasing the contact time and area of the gas and the diffusion source, when the amount of the diffusion source is less, the amount of the diffusion source of the gas can be. When the liquid level of the diffusion source is lower, the cylindrical source bottle is manually inclined, so that the diffusion source flows into the left lifting source liquid level through the upper part of the partition plate, the utilization rate of the diffusion source is improved, and the source waste is reduced.

Claims

1. The source bottle for solar cell diffusion is characterized by comprising a cylindrical source bottle body (1), an air inlet pipe (2), an air outlet pipe (3), a first baffle plate (4) and a partition plate (5), wherein the air inlet pipe (2) and the air outlet pipe (3) are respectively arranged at two sides of the interior of the source bottle body (1), the first baffle plate (4) is arranged in the source bottle body (1) close to the air inlet pipe side and is obliquely installed upwards along the joint B of the first baffle plate (4) and the inner side wall of the source bottle body (1), a through hole (41) is formed in the first baffle plate (4), the air inlet pipe (2) penetrates through the first baffle plate (4) by utilizing the through hole (41), a first liquid seam (42) extending towards the direction of the inner side wall of the source bottle body (1) is formed in the first baffle plate (4), and the partition plate (5) is installed on the inner bottom surface of the source bottle body (1) below the first baffle plate (4), and the two ends of the partition plate (5) are matched with the side wall of the source bottle body (1) and are sealed.

2. The source bottle for solar cell diffusion according to claim 1, characterized in that a second baffle (6) is installed on the inner surface of the source bottle body (1) at the side of the gas outlet pipe (3), and the second baffle (6) is installed obliquely upward from the connection A with the side wall of the source bottle body (1).

3. The source bottle for solar cell diffusion according to claim 2, wherein the second baffle (6) close to the inner side wall of the source bottle body (1) is provided with a second leaching seam (61) for leaking a phosphorus source into the source bottle.

4. The source bottle for solar cell diffusion according to claim 2, characterized in that the distance h1 between the junction B of the first baffle (4) and the inner side wall of the source bottle body (1) and the lower bottom surface of the source bottle body (1) is greater than zero and less than half of the bottle height of the source bottle body (1).

5. The source bottle for solar cell diffusion according to claim 2, characterized in that the distance h2 between the junction A of the second baffle (6) and the side wall of the source bottle body (1) and the lower bottom surface of the source bottle body (1) is larger than h 1.

6. The source bottle for solar cell diffusion according to claim 2, characterized in that the angle a between the corresponding oblique cross section of the first baffle (4) in the source bottle body (1) and the high corresponding vertical plane of the source bottle body (1) is greater than 90 ° and less than 180 °.

7. The source bottle for solar cell diffusion according to claim 6, characterized in that the angle b between the corresponding oblique section of the second baffle (6) in the source bottle body (1) and the vertical plane corresponding to the height of the source bottle body (1) is greater than or equal to a and less than 180 °.

8. The source bottle for solar cell diffusion according to claim 1, characterized in that the distance d between the upper surface of the baffle (5) and the underside of the first baffle (4) directly above it is greater than 1cm and less than three quarters of the height of the source bottle body (1).