CN213278040U

CN213278040U - Quartz boat

Info

Publication number: CN213278040U
Application number: CN202022519503.3U
Authority: CN
Inventors: 陈海燕; 沈雯; 邓伟伟
Original assignee: CSI Cells Co Ltd; Atlas Sunshine Power Group Co Ltd
Current assignee: Canadian Solar Inc; CSI Cells Co Ltd
Priority date: 2020-11-04
Filing date: 2020-11-04
Publication date: 2021-05-25
Anticipated expiration: 2030-11-04

Abstract

The utility model belongs to the technical field of solar cell, a quartz boat is specifically disclosed. The quartz boat comprises two fixed frames, a bottom rod and side rods. Wherein the two fixed frames are oppositely arranged. The bottom rod is connected between the two fixed frames. The side rods are parallel to the bottom rods and are positioned above the bottom rods. The side bars are connected between the two fixed frames. The side rods are provided with at least four, and two sides of the bottom rod are respectively provided with at least two side rods which are arranged along the vertical direction. The bottom rod and the side rods are respectively provided with a plurality of U-shaped clamping grooves at intervals along the respective length direction, and the U-shaped clamping grooves on the bottom rod and the side rods are in one-to-one correspondence to form a limiting structure for fixing the solar cells. The inner wall of the bottom end of the U-shaped clamping groove is provided with a butt surface, the butt surface can butt against the bottom end of the solar cell piece, and the butt surface provides a bearing force towards the inside of the U-shaped clamping groove for the solar cell piece. This quartz boat has realized the firm installation of solar wafer in the U type draw-in groove on the quartz boat, has avoided the solar wafer to take place the bonding piece.

Description

Quartz boat

Technical Field

The utility model belongs to the technical field of solar cell, especially, relate to a quartz boat.

Background

The quartz boat is a carrier for bearing the solar cell, and the solar cell is inserted into a boat rod of the quartz boat and enters a reaction cavity of the diffusion furnace along with the quartz boat for diffusion manufacturing.

As shown in fig. 1, the conventional quartz boat for single-sided diffusion includes two bottom rods 1 'at the bottom and two side rods 2' above the side edges, wherein the bottom rods 1 'and the side rods 2' are distributed in an isosceles trapezoid shape and are connected between two fixed frames. The distance between the two bottom rods 1 'is smaller than the distance between the two side rods 2'. As shown in fig. 2, the bottom bar 1 'and the side bars 2' are provided with a plurality of U-shaped slots 11 'along the length direction thereof at intervals, and the cross-sectional shape of the inner wall of the bottom end of each U-shaped slot 11' is a horizontal plane. The bottom rods 1 ' correspond to the U-shaped clamping grooves 11 ' of the side rods 2 ' one by one to form limiting structures of the solar cells 10 ', and each limiting structure is clamped with two solar cells 10 '.

The prior quartz boat has the following disadvantages: the bottom rods 1 ' and the side rods 2 ' are distributed at positions such that the side edges 3 ' of the lower end parts of the solar cells 10 ' positioned in the adjacent U-shaped clamping grooves 11 ' are easy to be stuck at high temperature. In addition, in order to facilitate the solar cells 10 'to be rapidly clamped into the U-shaped clamping grooves 11', the groove width of the U-shaped clamping grooves 11 'is greater than the width of the two solar cells 10'. The cross-sectional shape of the bottom inner wall of the U-shaped clamping groove 11 'is a horizontal plane, and the solar cell pieces 10' easily shake under the action of self gravity in the U-shaped clamping groove 11 ', so that the distance between two solar cell pieces 10' in the same U-shaped clamping groove 11 'can be enlarged, the solar cell pieces cannot be tightly attached together, the possibility of sticking the solar cell pieces is increased, the winding plating area of the solar cell pieces 10' is increased, and the difficulty in winding plating removal is increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a quartz boat to make solar wafer stably install on quartz boat, avoid the solar wafer in the quartz boat to appear the bonding die.

To achieve the purpose, the technical proposal adopted by the utility model is that:

a quartz boat, comprising:

the two fixed frames are oppositely arranged;

the bottom rod is connected between the two fixed frames;

the side rods are parallel to the bottom rods and are positioned above the bottom rods; the side rods are connected between the two fixed frames; the number of the side rods is at least four, and two sides of the bottom rod are respectively provided with at least two side rods which are arranged along the vertical direction;

the bottom rods and the side rods are respectively provided with a plurality of U-shaped clamping grooves at intervals along the respective length direction, and the bottom rods and the U-shaped clamping grooves on the side rods are in one-to-one correspondence and form a limiting structure for fixing the solar cells; the inner wall of the bottom end of the U-shaped clamping groove is provided with a butt surface, the butt surface can butt against the bottom end of the solar cell piece and provides a bearing force towards the inside of the U-shaped clamping groove for the solar cell piece.

Preferably, the cross-sectional shape of the inner wall of the bottom end of the U-shaped clamping groove is circular arc or polygonal.

Preferably, the side bars are connected to opposite sides of the top end and opposite sides of the bottom end of the fixed frame.

Preferably, the bottom ends of the two side bars at the two opposite sides of the bottom end of the fixed frame are coplanar with the bottom surfaces of the solar cells clamped on the quartz boat.

Preferably, the number of the bottom rods is one, and the bottom rods are arranged below the middle positions of the two side rods on the two opposite sides of the bottom end of the fixed frame.

Preferably, both sides of the notch of the U-shaped clamping groove are provided with guide surfaces which incline from bottom to top to outside.

Preferably, an included angle α between two guide surfaces in the same U-shaped slot is 60 °.

Preferably, the distance B2 between adjacent U-shaped clamping grooves is 2.3 mm-2.4 mm.

Preferably, the width B1 of the U-shaped clamping groove is 0.85 mm-0.95 mm.

Preferably, the axle center distance H between the two side rods on the same horizontal plane is 160-210 mm.

The utility model has the advantages that:

the utility model provides a quartz boat, the both sides of sill bar set up two at least side levers of arranging along vertical direction respectively for the side joint of solar wafer has improved the firm installation of solar wafer on quartz boat in U type draw-in groove on two at least side levers, has avoided the solar wafer to take place the bonding die. Simultaneously, the butt face of U type draw-in groove bottom inner wall can bearing solar wafer to provide the inside bearing power of orientation U type draw-in groove to solar wafer, be favorable to two solar wafer realization inseparable laminating of joint in same U type draw-in groove, reduced the degree of rocking of solar wafer in U type draw-in groove, further avoided solar wafer to take place the bonding. Meanwhile, the area of the solar cell sheet subjected to winding plating is reduced, and the difficulty in removing the winding plating is reduced.

Drawings

FIG. 1 is a schematic end view of a conventional quartz boat carrying solar cells;

FIG. 2 is a schematic partial end view of a conventional quartz boat with a bottom bar carrying solar cells;

fig. 3 is a schematic end view of a quartz boat for carrying solar cells according to an embodiment of the present invention;

FIG. 4 is a schematic partial end view of a first bottom rod of a quartz boat according to an embodiment of the present invention;

fig. 5 is a schematic partial end view of a second bottom rod of a quartz boat according to an embodiment of the present invention.

The component names and designations in the drawings are as follows:

a bottom bar 1'; a side lever 2'; a solar cell sheet 10'; the side 3' of the lower end; a U-shaped clamping groove 11';

a bottom bar 1; a side lever 2; a U-shaped card slot 11; a guide surface 12; a solar cell sheet 10.

Detailed Description

In order to make the technical problem solved by the present invention, the technical solution adopted by the present invention and the technical effect achieved by the present invention clearer, the technical solution of the present invention will be further explained by combining the drawings and by means of the specific implementation manner. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements related to the present invention are shown in the drawings.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

As shown in fig. 3-5, the present embodiment discloses a quartz boat to avoid the sticking between the solar cells 10 in the adjacent U-shaped slots 11. The solar cell 10 in this embodiment is supported in the quartz boat, and every limit structure of quartz boat all joint has two solar cell 10. The position of the solar cell 10 where the sticking is likely to occur is the side edge 3 'of the lower end portion of the solar cell 10' in fig. 1. Note that the bonding occurs between two solar cells 10 located in two adjacent U-shaped card slots 11 and close to each other.

The quartz boat of this embodiment includes two fixed frames (not shown), a bottom bar 1 and side bars 2. Wherein the two fixed frames are oppositely arranged. The bottom bar 1 is connected between two fixed frames. The side rods 2 are parallel to the bottom rod 1 and are positioned above the bottom rod 1. The side bars 2 are connected between two fixed frames. The number of the side rods 2 is at least four, and two sides of the bottom rod 1 are respectively provided with at least two side rods 2 which are arranged along the vertical direction. The bottom rod 1 and the side rod 2 are respectively provided with a plurality of U-shaped clamping grooves 11 at intervals along the respective length direction, and the bottom rod 1 and the U-shaped clamping grooves 11 on the side rod 2 correspond to each other one by one and form a limiting structure for fixing the solar cells 10. The inner wall of the bottom end of the U-shaped clamping groove 11 is provided with an abutting surface, the abutting surface can abut against the bottom end of the solar cell 10, and provides a bearing force towards the inside of the U-shaped clamping groove 11 for the solar cell 10.

The both sides of sill bar 1 on this quartz boat set up two at least side levers 2 of arranging along vertical direction respectively for the side joint of solar wafer 10 is in U type draw-in groove 11 on two at least side levers 2, improves the firm installation of solar wafer 10 on the quartz boat, has avoided solar wafer 10 to take place the bonding die. Simultaneously, the butt face of the tank bottom end inner wall of U type draw-in groove 11 can support solar wafer 10 to provide the inside bearing power of orientation U type draw-in groove 11 to solar wafer 10, be favorable to two solar wafer 10 realization inseparable laminating of joint in same U type draw-in groove 11, reduced the range of rocking of solar wafer 10 in U type draw-in groove 11, further avoided solar wafer 10 to take place the bonding. Meanwhile, the area of the solar cell piece 10 subjected to the winding plating is reduced, and the difficulty of removing the winding plating is reduced.

As shown in fig. 4 and 5, the cross-sectional shape of the inner wall of the bottom end of the U-shaped slot 11 is circular arc or polygonal. Specifically, the cross sectional shape of the inner wall of the bottom end of the U-shaped clamping groove 11 can be arc-shaped or isosceles trapezoid, at this time, the abutting surface of the U-shaped clamping groove 11 is an arc surface or participates in enclosing to form an isosceles trapezoid inclined surface, and can provide bearing force towards the inside of the U-shaped clamping groove 11 to two solar battery pieces 10 located in the same U-shaped clamping groove 11 respectively, so that the two solar battery pieces 10 are tightly attached together, and the shaking of the solar battery pieces 10 in the U-shaped clamping groove 11 is avoided.

As shown in fig. 3, side bars 2 are attached to opposite sides of the top end and opposite sides of the bottom end of the fixed frame.

The side rod 2 and the bottom rod 1 of the quartz boat of the embodiment have the same structure and are arranged between the two fixed frames in parallel. The difference lies in that: the side rods 2 and the bottom rods 1 are distributed on the fixed frame at different positions. The number of side lever 2 is four, and four side levers 2 are array distribution in the top of sill bar 1. The four side bars 2 can improve the problem that the solar cell pieces 10 are stuck in the quartz boat, and simultaneously, the light weight of the quartz boat is considered. Of course, the number of side bars 2 can also be increased in a suitable amount according to the actual requirements.

Preferably, the bottom ends of the two side bars 2 at the two opposite sides of the bottom end of the fixed frame are coplanar with the bottom surface of the solar cell piece 10 clamped on the quartz boat, so that the solar cell piece 10 is clamped in the U-shaped clamping grooves 11 of the side bars 2 at the position where the sticking is easy to occur, which is beneficial to the stable installation of the solar cell piece 10 on the quartz boat.

Preferably, the quantity of sill bar 1 is one, and the below that is located the intermediate position of two side levers 2 of the relative both sides of fixed frame's bottom is provided with sill bar 1 for the intermediate position joint in the U type draw-in groove 11 of sill bar 1 of the bottom of solar wafer 10 is favorable to solar wafer 10 atress even, improves the firm installation of solar wafer 10 on the quartz boat. The number of the bottom rods 1 is one, so that the total weight of the quartz boat is reduced. Of course, the number of the bottom rods 1 can also be two, three or more than four.

Specifically, the distance B2 between adjacent U-shaped card slots 11 is 2.3 mm-2.4 mm. The depth h of the U-shaped clamping groove 11 is 2.5 mm-2.7 mm. The width B1 of the U-shaped clamping groove 11 is 0.85 mm-0.95 mm.

Preferably, both sides of the notch of the U-shaped card slot 11 have guide surfaces 12 inclined from bottom to top to the outer side. The two guide surfaces 12 inclined to the outside enlarge the opening of the U-shaped clamping groove 11, and can provide guidance for clamping the solar cell 10. Specifically, the included angle α between the two guide surfaces 12 in the same U-shaped card slot 11 is 60 °. Of course, the included angle α may be other inclination angles such as 45 °, 50 ° or 55 °.

In the embodiment, the axle center distance H between the two side bars 2 on the same horizontal plane is 160 mm-210 mm, which is beneficial for bearing large-size solar cells 10. For example, the wheelbase H is 166mm, 182mm or 210 mm.

The above embodiments have been described only the basic principles and features of the present invention, and the present invention is not limited by the above embodiments, and is not departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A quartz boat, comprising:

the two fixed frames are oppositely arranged;

the bottom rod (1), the said bottom rod (1) is connected between two said fixed frames;

the side rod (2), the side rod (2) is parallel to the bottom rod (1), and is positioned above the bottom rod (1); the side rods (2) are connected between the two fixed frames; the number of the side rods (2) is at least four, and two sides of the bottom rod (1) are respectively provided with at least two side rods (2) which are arranged along the vertical direction;

the bottom rods (1) and the side rods (2) are respectively provided with a plurality of U-shaped clamping grooves (11) at intervals along the respective length direction, and the bottom rods (1) and the U-shaped clamping grooves (11) on the side rods (2) are in one-to-one correspondence and form a limiting structure for fixing solar cells (10); the inner wall of the bottom end of the U-shaped clamping groove (11) is provided with an abutting surface, the abutting surface can abut against the bottom end of the solar cell piece (10), and provides a bearing force towards the inside of the U-shaped clamping groove (11) for the solar cell piece (10).

2. The quartz boat according to claim 1, wherein the cross-sectional shape of the inner wall of the bottom end of the U-shaped slot (11) is circular arc or polygonal.

3. The quartz boat according to claim 1, characterized in that the lateral bars (2) are attached to opposite sides of the top end and opposite sides of the bottom end of the fixed frame.

4. The quartz boat according to claim 3, characterized in that the bottom ends of the two lateral bars (2) located on opposite sides of the bottom end of the fixed frame are coplanar with the bottom surfaces of the solar cells (10) engaged in the quartz boat.

5. Quartz boat according to claim 3, characterized in that the number of bottom rods (1) is one, the bottom rods (1) being arranged below the middle of the two side rods (2) on opposite sides of the bottom end of the fixed frame.

6. The quartz boat according to claim 1, wherein the U-shaped slot (11) has guide surfaces (12) inclined from bottom to top toward the outside on both sides of the slot.

7. Quartz boat according to claim 6, characterized in that the angle α between the two guide surfaces (12) in the same U-shaped slot (11) is 60 °.

8. The quartz boat according to claim 1, wherein the distance B2 between adjacent U-shaped slots (11) is 2.3mm to 2.4 mm.

9. The quartz boat according to claim 1, wherein the width B1 of the U-shaped slot (11) is 0.85mm to 0.95 mm.

10. The quartz boat according to claim 1, characterized in that the wheelbase H between the two lateral rods (2) on the same horizontal plane is 160mm to 210 mm.