Spacer block for improving broken lugs of boat piece

Abstract

The utility model relates to the technical field of PECVD (Plasma Enhanced Chemical Vapor Deposition) coating, in particular to a spacer block for improving broken lugs of a boat piece, which comprises a double-thread screw rod, fixing nuts are fixedly arranged on two sides of the double-thread screw rod, a separation cylinder is movably arranged on the outer side of the double-thread screw rod, a piece body mechanism is arranged on the outer side of the double-thread screw rod, and the piece body mechanism comprises a first boat piece and a second boat piece. Middle lug pieces are fixedly installed on the upper sides of the front end and the rear end of the first boat piece, lower lug pieces are fixedly installed on the lower sides of the front end and the rear end of the second boat piece, and separation mechanisms are arranged between the middle lug pieces and the lower lug pieces. Therefore, when the gravity of the whole graphite boat is supported, pressure can be dispersed to the lugs, so that the supporting pressure of the lugs is reduced, the lugs are prevented from being broken, meanwhile, the lower sides of the upper spacer block and the lower spacer block are increased by 10mm, the overall bearing capacity of the upper spacer block and the lower spacer block is increased, and the upper spacer block and the lower spacer block are prevented from being broken.

Description

Technical Field

[0001] The utility model relates to the technical field of PECVD coating, in particular to a spacer for improving the breakage of boat ears. Background Art

[0002] Graphite boat is a carrier used in the coating process of solar cell. It is made of high-purity isostatic graphite and has excellent properties such as high temperature resistance, electrical conductivity and thermal conductivity. In the PECVD (plasma enhanced chemical vapor deposition) process, the graphite boat carries silicon wafers for coating, and uses plasma to deposit thin films at a lower temperature to improve the solar energy conversion rate. The selection of graphite boat is crucial to ensuring the stability and quality of the silicon nitride coating on silicon wafers, because it needs to have good electrical and thermal conductivity, and the graphite boat just meets these conditions. The graphite boat spacer is an important component of the graphite boat and is usually used to separate the boat slices of the graphite boat to ensure the distance and stability between the boat slices.

[0003] However, the existing graphite boat spacers are all split structures, which are penetrated by screws to enable the spacers to engage with the ears on the boat plates. However, when the boat is lifted, the spacer structure cannot support the graphite boat, resulting in most of the weight of the entire graphite boat being pressed on the ears at the boat lifting support points. Graphite is fragile, so the ears on the boat plates are easily broken when the boat is lifted. Utility Model Content

[0004] The purpose of the present invention is to provide a spacer for improving the breakage of boat ears, so as to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A spacer for improving ear breakage caused by boat pieces comprises a double-headed screw, with fixing nuts fixedly installed on both sides of the double-headed screw, a separating cylinder movably installed on the outside of the double-headed screw, a sheet body mechanism provided on the outside of the double-headed screw, the sheet body mechanism comprising a first boat piece and a second boat piece, a middle ear piece fixedly installed on the upper sides of the front and rear ends of the first boat piece, a lower ear piece fixedly installed on the lower sides of the front and rear ends of the second boat piece, and a separating mechanism provided between the middle ear piece and the lower ear piece.

[0007] Preferably, the sheet body mechanism further includes a first fixing hole and a second fixing hole, wherein the first fixing hole is provided on upper and lower sides of the first boat sheet and the second boat sheet, and a double-headed screw is fixedly installed in the first fixing hole.

[0008] Preferably, the second fixing hole is opened between the middle ear piece and the lower ear piece, and a double-headed screw is fixedly installed in the second fixing hole.

[0009] Preferably, the partition mechanism comprises an upper spacer block and a lower spacer block, and third fixing holes are opened on the upper sides of both ends of the upper spacer block, and double-headed screws are fixedly installed in the third fixing holes.

[0010] Preferably, a first connecting hole is provided at the front end of the upper spacer, a first slot is provided at the upper side of the upper spacer, and a middle ear piece is movably installed in the first slot.

[0011] Preferably, fourth fixing holes are opened on the upper sides of both ends of the lower spacer, and double-headed screws are fixedly installed in the fourth fixing holes.

[0012] Preferably, a second connecting hole is provided at the front end of the lower spacer, a second slot is provided at the upper side of the lower spacer, and a lower ear piece is movably installed in the second slot.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] The spacer for improving the lug breakage of the boat has an upper spacer and a lower spacer as an integrated structure. Therefore, when supporting the gravity of the entire graphite boat, the pressure can be dispersed to each lug, thereby reducing the supporting pressure of each lug and avoiding the lug from breaking.

[0015] The spacer for improving the broken ear of the boat piece has a lower side of the upper spacer and the lower spacer increased by 10 mm, so that the overall bearing capacity of the upper spacer and the lower spacer is increased, and the upper spacer and the lower spacer are prevented from being broken. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a structural diagram of the sheet structure of the utility model;

[0018] Figure 3 This is a structural diagram of the separation mechanism of the utility model;

[0019] Figure 4 For this utility model Figure 2 Enlarged schematic diagram of point A in the middle.

[0020] In the figure: 101, double-headed screw; 102, fixing nut; 103, separating cylinder; 104, sheet body mechanism; 105, first boat sheet; 106, second boat sheet; 201, middle ear sheet; 202, lower ear sheet; 203, separating mechanism; 204, first fixing hole; 205, second fixing hole; 206, upper spacer; 301, lower spacer; 302, third fixing hole; 303, first connecting hole; 304, first slot; 305, fourth fixing hole; 306, second connecting hole; 401, second slot. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only 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 making creative efforts are within the scope of protection of the present invention.

[0022] See also Figures 1-4 As shown, the utility model provides a technical solution:

[0023] A spacer for improving ear breakage caused by boat pieces comprises a double-headed screw 101, with fixing nuts 102 fixedly installed on both sides of the double-headed screw 101, a separating cylinder 103 movably installed on the outside of the double-headed screw 101, a sheet mechanism 104 is provided on the outside of the double-headed screw 101, and the sheet mechanism 104 comprises a first boat piece 105 and a second boat piece 106, a middle ear piece 201 is fixedly installed on the upper sides of the front and rear ends of the first boat piece 105, a lower ear piece 202 is fixedly installed on the lower sides of the front and rear ends of the second boat piece 106, and a separating mechanism 203 is provided between the middle ear piece 201 and the lower ear piece 202.

[0024] Through the above scheme, the first boat piece and the second boat piece can be assembled by passing the double-headed screw through the dividing cylinder and tightening the fixing nut. The upper spacer can be installed through the middle ear piece, and the lower spacer can be installed through the lower ear piece.

[0025] In this embodiment, preferably, the sheet body mechanism 104 further includes a first fixing hole 204 and a second fixing hole 205 . The first fixing hole 204 is provided on the upper and lower sides of the first boat sheet 105 and the second boat sheet 106 . The double-headed screw 101 is fixedly installed in the first fixing hole 204 .

[0026] According to the above solution, the first boat piece and the second boat piece can be combined into the graphite boat body by installing the double-headed screw in the first fixing hole.

[0027] In this embodiment, preferably, the second fixing hole 205 is opened between the middle ear piece 201 and the lower ear piece 202 , and a double-headed screw 101 is fixedly installed in the second fixing hole 205 .

[0028] According to the above solution, the partition structure can be assembled by installing the double-headed screw in the second fixing hole.

[0029] The partition mechanism 203 includes an upper spacer 206 and a lower spacer 301 . Third fixing holes 302 are formed on the upper sides of both ends of the upper spacer 206 . The double-headed screw 101 is fixedly installed in the third fixing hole 302 .

[0030] According to the above solution, the upper spacer and the middle ear piece can be assembled and fixed by installing the third fixing hole and the double-headed screw.

[0031] In this embodiment, preferably, a first connecting hole 303 is provided at the front end of the upper spacer 206 , and a first slot 304 is provided at the upper side of the upper spacer 206 , in which the middle ear piece 201 is movably mounted.

[0032] According to the above solution, the upper spacer and the coating device can be connected through the first connecting hole, and the upper spacer and the middle ear piece can be snap-fitted and fixed through the first slot to complete the assembly.

[0033] In this embodiment, preferably, fourth fixing holes 305 are opened on the upper sides of both ends of the lower spacer 301 , and the double-headed screws 101 are fixedly installed in the fourth fixing holes 305 .

[0034] According to the above solution, the lower spacer and the lower ear piece can be assembled and fixed by installing the fourth fixing hole and the double-headed screw.

[0035] In this embodiment, preferably, a second connecting hole 306 is provided at the front end of the lower spacer 301 , a second slot 401 is provided at the upper side of the lower spacer 301 , and a lower ear piece 202 is movably installed in the second slot 401 .

[0036] According to the above solution, the lower spacer and the coating device can be connected through the second connecting hole, and the lower spacer and the lower ear piece can be engaged and fixed through the second slot to complete the assembly.

[0037] When using the spacer for improving the broken ear of the boat sheet of this embodiment, the user assembles the sheet structure in a state where two second boat sheets 106 clamp a first boat sheet 105, and then installs the double-headed screw 101 through the first fixing hole 204. At the same time, the double-headed screw 101 penetrates and fixes the separation cylinder 103 between the first boat sheet 105 and the second boat sheet 106. Finally, the fixing nut 102 is screwed on the double-headed screw 101 to assemble the sheet structure into a graphite boat and keep it stable. At this time, the first slot 304 and the middle ear sheet 201 are engaged, and the double-headed screw 101 passes through the second fixing hole 205 and the third fixing hole 302 and is connected to the fixing nut 102, so that the upper spacer 206 and the graphite boat are assembled and fixed, and then the second slot 401 and the lower ear sheet 202 are engaged. The double-headed screw 101 is combined to pass through the second fixing hole 205 and the fourth fixing hole 305 and is connected to the fixing nut 102 so that the lower spacer 301 and the graphite boat are assembled and fixed. After the overall assembly is completed, when the boat is lifted by the upper spacer 206 or the lower spacer 301, the middle ear 201 or the lower ear 202 bears the weight of the graphite boat and then presses down on the upper spacer 206 or the lower spacer 301. The upper spacer 206 and the lower spacer 301 are an integrated structure. Therefore, when supporting the gravity of the entire graphite boat, the pressure can be dispersed to each ear, thereby reducing the supporting pressure of each ear and avoiding the ear from breaking. At the same time, the lower side of the upper spacer 206 and the lower spacer 301 is increased by 10mm, which increases the overall bearing capacity of the upper spacer 206 and the lower spacer 301 and avoids the upper spacer 206 and the lower spacer 301 from breaking.

[0038] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A spacer for improving the breakage of boat blades, characterized by: The invention comprises a double-headed screw (101), fixed nuts (102) are fixedly installed on both sides of the double-headed screw (101), a separation cylinder (103) is movably installed on the outside of the double-headed screw (101), a sheet body mechanism (104) is provided on the outside of the double-headed screw (101), and the sheet body mechanism (104) comprises a first boat piece (105) and a second boat piece (106), a middle ear piece (201) is fixedly installed on the upper sides of the front and rear ends of the first boat piece (105), a lower ear piece (202) is fixedly installed on the lower sides of the front and rear ends of the second boat piece (106), and a separation mechanism (203) is provided between the middle ear piece (201) and the lower ear piece (202).

2. The spacer for improving the breakage of boat blades according to claim 1, characterized in that: The sheet body mechanism (104) further comprises a first fixing hole (204) and a second fixing hole (205), wherein the first fixing hole (204) is provided on the upper and lower sides of the first boat sheet (105) and the second boat sheet (106), and a double-headed screw (101) is fixedly installed in the first fixing hole (204).

3. The spacer for improving the breakage of boat blades according to claim 2, characterized in that: The second fixing hole (205) is opened between the middle ear piece (201) and the lower ear piece (202), and a double-headed screw (101) is fixedly installed in the second fixing hole (205).

4. The spacer for improving the breakage of boat blades according to claim 1, characterized in that: The partition mechanism (203) comprises an upper partition block (206) and a lower partition block (301). Third fixing holes (302) are provided on the upper sides of both ends of the upper partition block (206). Double-headed screws (101) are fixedly installed in the third fixing holes (302).

5. The spacer for improving the breakage of boat blades according to claim 4, characterized in that: A first connecting hole (303) is provided at the front end of the upper spacer (206), a first slot (304) is provided on the upper side of the upper spacer (206), and a middle ear piece (201) is movably mounted in the first slot (304).

6. The spacer for improving the breakage of boat blades according to claim 5, characterized in that: Fourth fixing holes (305) are provided on the upper sides of both ends of the lower spacer (301), and double-headed screws (101) are fixedly installed in the fourth fixing holes (305).

7. The spacer for improving the breakage of boat blades according to claim 6, characterized in that: A second connecting hole (306) is provided at the front end of the lower spacer (301), a second card slot (401) is provided on the upper side of the lower spacer (301), and a lower ear piece (202) is movably installed in the second card slot (401).

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