CN202072476U

CN202072476U - Rectangular-hole graphite clamping claw for square silicon chip

Info

Publication number: CN202072476U
Application number: CN2011201877968U
Authority: CN
Inventors: 周英军
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-06-07
Filing date: 2011-06-07
Publication date: 2011-12-14
Anticipated expiration: 2021-06-07

Abstract

The utility model relates to a graphite clamping claw used in a reduction furnace in a production process of polysilicon, in particular to a rectangular-hole graphite clamping claw for a square silicon chip. The graphite clamping claw comprises a graphite clamping claw body, wherein a clamping hole used for clamping the silicon chip is formed on the graphite clamping claw body. The graphite clamping claw is characterized in that the clamping hole is rectangular, triangular, rhombic or trapezoidal. The graphite clamping claw is suitable for being used by matching with the square silicon chip of which the cross section is rectangular. Because the traditional clamping hole, of which the cross section is round, on the graphite clamping claw is improved to the clamping hole of which the cross section is rectangular to clamp the square silicon chip, face contact between the graphite clamping claw and the square silicon chip is realized, contact with maximal area between the graphite clamping claw and four faces of the square silicon chip is realized, the breakdown time is shortened in a practical production process, the time of sub secondary current is obviously shortened, the energy consumption of the product is lower than that of a round silicon chip, the yield, the sedimentation velocity and the pass conversion are relatively high, and thus the production efficiency of the polysilicon is improved.

Description

The rectangular opening graphite card lobe of a kind of side of being applicable to silicon core

Technical field

The utility model relates to the graphite card lobe that uses in the reduction furnace in a kind of polysilicon production process, the rectangular opening graphite card lobe of especially a kind of side of being applicable to silicon core.

Background technology

At present, the round silicon core that the silicon core that reduction furnace is used in the polysilicon production process generally adopts silicon core stove to draw generally has the cross section and is the clamping hole of circular hole as the silicon core on the graphite card lobe of connection circle silicon core and electrode.But, silicon core stove is difficult to draw out the round silicon core of absolute circle in actual production process, this just causes round silicon core and graphite card lobe between the clamping hole often to form and contacts, and nonideal contact, thereby cause virtual connection between silicon core and the graphite card lobe, cause in the production of polysilicon that power consumption increases, fusible cut-out easily fuses, slows down polysilicon deposition speed, strengthened production cost.

The utility model content

The purpose of this utility model provides the rectangular opening graphite card lobe of a kind of side of being applicable to silicon core, cooperate square silicon core to use and to make maintenance face contact between silicon core and the graphite card lobe, thereby can reduce power consumption, help the growth of product, and sedimentation velocity is relative higher with a transformation efficiency.

For achieving the above object, the technical solution adopted in the utility model is:

The rectangular opening graphite card lobe of a kind of side of being applicable to silicon core comprises graphite card lobe body, has the clamping hole that is used for clamping silicon core on this graphite card lobe body, and its special feature is that the cross section of described clamping hole is rectangle, trilateral, rhombus or trapezoidal.

Graphite card lobe of the present utility model is fit to and the cross section is that orthogonal side's silicon core is used, because is the orthogonal clamping hole with cross section traditional on the graphite card lobe for circular clamping hole is transformed into the cross section, cooperate the clamping of the other side's silicon core, realized that graphite card lobe contacts with the face of square silicon core, the maximum area that has guaranteed four faces of graphite card lobe and square silicon core contacts, in actual production process, shortened breakdown time like this, press the time of secondary electric current obviously to shorten, product energy consumption is lower than the energy consumption of round silicon core, yield rate, sedimentation velocity is relative higher with a transformation efficiency, thereby has improved the production efficiency of polysilicon.

Description of drawings

Accompanying drawing 1 is a structural representation of the present utility model;

Embodiment

The utility model is described in more detail below in conjunction with accompanying drawing:

As shown in Figure 1, 2, the rectangular opening graphite card lobe of a kind of side of being applicable to silicon core, comprise graphite card lobe body 2, on this graphite card lobe body 2, have the clamping hole 1 that is used for clamping silicon core, the cross section of clamping hole 1 is a rectangle, when adopting the cross section to be orthogonal side's silicon core, both can well contact by realization face, even slightly deviation effects is also little in the deformation of square silicon core processing.

Certainly the cross section of clamping hole 1 also can be trilateral, rhombus or trapezoidal, and need be that trilateral or trapezoid silicon core are used this moment with the cross section.

Claims

1. the rectangular opening graphite card lobe of the side's of being applicable to silicon core, comprise graphite card lobe body (2), have the clamping hole (1) that is used for clamping silicon core on this graphite card lobe body (2), it is characterized in that: the cross section of described clamping hole (1) is rectangle, trilateral, rhombus or trapezoidal.