Heater and single crystal furnace

Abstract

The utility model discloses a heater and a single crystal furnace, and relates to the technical field of heaters. The heating device comprises heating petals and heating legs, a first limiting structure is arranged in the middle of the top of the heating leg, and second limiting structures are arranged on two sides of the first limiting structure; third limiting structures are arranged at the bottoms of the heating petals, and fourth limiting structures are arranged on the two sides of the third limiting structures; the first limiting structure adopts a bulge or a groove, and the third limiting structure adopts a groove corresponding to the bulge or a bulge corresponding to the groove; the second limiting structure adopts a positioning protrusion or a positioning groove, and the fourth limiting structure adopts a positioning groove corresponding to the positioning protrusion or a positioning protrusion corresponding to the positioning groove. Alignment can be directly achieved based on the limiting structure, fine adjustment and control of the side portion do not need to be considered, dislocation is not prone to being generated, machining is easy, and the manufacturing cost is lower; the contact area of the connection position is increased, local high temperature is avoided, and the service life of the heater is prolonged.

Description

Technical Field

[0001] This utility model belongs to the field of heater technology, and in particular relates to a heater and a single crystal furnace. Background Technology

[0002] A single crystal furnace is a piece of equipment used in crystal pulling production. The internal heater is an essential component. Existing heaters typically include heating petals, heating legs, and bolts. The heating petals and heating legs are connected by bolts. Due to the small contact area and gaps in the bolt connection, excessive local resistance can easily occur, leading to overheating and cracking. This shortens the maintenance cycle of the main heater and reduces its service life.

[0003] To address the above issues, a patent with authorization announcement number CN221608247U, entitled "A Heater and a Single Crystal Furnace," discloses a structure in which grooves and protrusions are respectively provided at the lower end of the heating petal and the upper end of the heating leg to cooperate. Although this patent eliminates the need for bolt connection and fixation, the upper and lower groove-protrusion cooperation only achieves vertical docking, without limiting the left and right sides. Precise control is required to ensure a tight and accurate docking of the upper and lower groove-protrusion structure, which is prone to misalignment and unevenness during installation and disassembly. Furthermore, due to the deep grooves and long protrusions, the connection is prone to breakage during processing, installation, and transportation, causing component damage. Moreover, the deep grooves and long protrusions are difficult to process, leading to high processing costs. To avoid damage, the heating petal and heating leg need to be thicker. Therefore, to solve the above problems, this technical solution proposes a heater and a single crystal furnace. Utility Model Content

[0004] This invention provides a heater in which the heating petal and heating leg are connected by a first limiting structure located at the top center of the heating leg and a third limiting structure located at the bottom center of the heating petal. Second limiting structures located on either side of the first limiting structure and fourth limiting structures on either side of the third limiting structure also cooperate. Based on gravity, the heating petal and heating leg can be easily connected without bolts. During the connection process, the limiting structures directly achieve alignment, eliminating the need for fine-tuning and control of the sides, thus reducing the risk of misalignment. Furthermore, the limiting structures are easier to process and have lower manufacturing costs compared to deeper grooves and longer protrusions. By adding a highly conductive graphite paper gasket at the connection point, in conjunction with the limiting structures, the contact area at the connection point is increased, resulting in lower resistance, preventing localized high temperatures, reducing the likelihood of damage to the heating leg, and extending the heater's service life. In summary, this invention solves the problems in the prior art.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model discloses a heater and a single crystal furnace, including a heating element and a heating leg;

[0007] The heating leg has a first limiting structure at the top center, and second limiting structures are provided on both sides of the first limiting structure;

[0008] The bottom of the heating valve is provided with a third limiting structure that matches the first limiting structure, and a fourth limiting structure that matches the second limiting structure is provided on both sides of the third limiting structure.

[0009] The first limiting structure adopts a protrusion or a groove, the third limiting structure adopts a groove corresponding to the protrusion or a protrusion corresponding to the groove; the second limiting structure adopts a positioning protrusion or a positioning groove, the fourth limiting structure adopts a positioning groove corresponding to the positioning protrusion or a positioning protrusion corresponding to the positioning groove.

[0010] The heating petal sits on the heating leg and is connected through the cooperation of the first limiting structure and the third limiting structure, and the cooperation of the second limiting structure and the fourth limiting structure.

[0011] Furthermore, the shape of the groove includes trapezoidal, triangular, semi-circular, and arc-shaped; the shape of the protrusion includes trapezoidal, triangular, semi-circular, and arc-shaped corresponding to the groove.

[0012] Furthermore, the cross-sectional shape of the positioning protrusion includes a triangle, a semi-circle, an arc, and a trapezoid; the cross-sectional shape of the positioning groove includes a triangle, a semi-circle, an arc, and a trapezoid corresponding to the positioning protrusion.

[0013] Furthermore, a graphite paper gasket is installed on the contact surface where the heating petal and the heating leg are connected.

[0014] Furthermore, the connection between the heating petal and the heating leg is bonded with resin, including epoxy resin and phenolic resin.

[0015] Furthermore, the first limiting structure is provided with a ridge protrusion or a ridge groove, and the third limiting structure is provided with a ridge groove corresponding to the ridge protrusion or a ridge protrusion corresponding to the ridge groove.

[0016] A single crystal furnace, wherein the single crystal furnace is provided with a heater having the above-mentioned technical features.

[0017] The present invention has the following advantages over the prior art:

[0018] (1) Easy installation and disassembly and not easy to misalignment: The heating petal and the heating leg of this technical solution are connected by a first limiting structure located at the middle of the top of the heating leg and a third limiting structure located at the middle of the bottom of the heating petal. The second limiting structure located on both sides of the first limiting structure and the fourth limiting structure located on both sides of the third limiting structure are connected. Based on the action of gravity, the heating petal and the heating leg can be easily connected without the need for bolts. During the connection process between the heating petal and the heating leg, the limiting structure can be directly aligned without the need for fine adjustment and control of the side, and it is not easy to misalign.

[0019] (2) Easier to process and lower manufacturing cost: The limiting structure of this application is easier to process and has a lower manufacturing cost compared to deeper grooves and longer protrusions;

[0020] (3) Large contact area and long service life: By adding a highly conductive graphite paper gasket at the connection position and combining it with the limiting structure at the connection position, the contact area at the connection position is increased, the resistance at the connection position is reduced, local high temperature is avoided, the temperature loss of the heating leg is reduced, and the service life of the heater is extended.

[0021] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of a heater according to a specific embodiment 1 of the present invention;

[0024] Figure 2 for Figure 1 Cross-sectional view of the heater;

[0025] Figure 3 for Figure 1 Schematic diagram of the structure of the heating leg;

[0026] Figure 4 for Figure 1 Schematic diagram of the structure of the central heating valve;

[0027] Figure 5 This is a schematic diagram of the structure of a heater according to a specific embodiment 2 of the present invention;

[0028] Figure 6 for Figure 5Cross-sectional view of the heater;

[0029] Figure 7 for Figure 5 Schematic diagram of the structure of the heating leg;

[0030] Figure 8 for Figure 5 Schematic diagram of the structure of the central heating valve;

[0031] The attached diagram lists the components represented by each number as follows:

[0032] 1-Heating flap, 11-Third limiting structure, 12-Fourth limiting structure, 2-Heating leg, 21-First limiting structure, 22-Second limiting structure, 3-Graphite paper gasket. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0034] In the description of this utility model, it should be understood that the terms "middle", "both sides", "groove", "protrusion", "contact surface", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Specific Implementation Example 1:

[0036] Please see Figure 1-4 As shown, this utility model discloses a heater, including a heating petal 1 and a heating leg 2. The heating petal 1 and heating leg 2 are structures commonly found in heaters used in single-crystal furnaces. Their specific structures and principles are not detailed here. The innovation of this design lies in the innovative connection position between the two components, abandoning the traditional bolt connection. The specific innovation is as follows:

[0037] The heating leg 2 has a first limiting structure 21 at the top center, and a second limiting structure 22 on both sides of the first limiting structure 21.

[0038] The bottom of the heating petal 1 is provided with a third limiting structure 11 that matches the first limiting structure 21, and a fourth limiting structure 12 that matches the second limiting structure 22 is provided on both sides of the third limiting structure 11.

[0039] The first limiting structure 21 adopts a protrusion, and the third limiting structure 11 adopts a groove that matches the first limiting structure 21; the second limiting structure 22 adopts a positioning protrusion, and the fourth limiting structure 12 adopts a positioning groove that matches the second limiting structure 22.

[0040] The heating petal 1 sits on the heating leg 2 and is connected through the cooperation of the first limiting structure 21 and the third limiting structure 11, and the cooperation of the second limiting structure 22 and the fourth limiting structure 12.

[0041] In this specific embodiment, the shape of the protrusion is specifically an isosceles trapezoid, and the shape of the corresponding groove is an isosceles trapezoid corresponding to the aforementioned isosceles trapezoid. Of course, other shapes that can achieve alignment and anti-misalignment function are also within the protection scope of this technical solution. For example, the shape of the groove includes trapezoids, triangles, semicircles, arcs, etc.; the shape of the protrusion includes trapezoids, triangles, semicircles, arcs, etc. corresponding to the groove.

[0042] In this specific embodiment, the cross-sectional shape of the positioning protrusion is an equilateral triangle; the cross-sectional shape of the corresponding positioning groove is an equilateral triangle corresponding to the aforementioned equilateral triangle; of course, other shapes that can achieve alignment and anti-misalignment function are all within the protection scope of this technical solution; for example, the cross-sectional shape of the positioning protrusion includes triangle, semicircle, arc, trapezoid, etc.; the cross-sectional shape of the positioning groove includes triangle, semicircle, arc, trapezoid, etc. corresponding to the positioning protrusion.

[0043] Among them, a graphite paper gasket 3 is installed on the contact surface where the heating petal 1 and the heating leg 2 are connected. The graphite paper gasket 3 can ensure that the contact area is maximized and that the two are in full contact, thereby ensuring that the heater heats up evenly, minimizing the connection resistance, avoiding local high temperature phenomenon of the connecting piece, and preventing premature damage, thus increasing the life of the entire heater.

[0044] A single crystal furnace, wherein the single crystal furnace is provided with a heater having the above-mentioned technical features. Specific Implementation Example 2:

[0046] like Figure 5-8 As shown, the difference between this specific embodiment and specific embodiment 1 is that:

[0047] The first limiting structure 21 adopts a groove, and the third limiting structure 11 adopts a protrusion corresponding to the first limiting structure 21; the second limiting structure 22 adopts a positioning groove, and the fourth limiting structure 12 adopts a positioning protrusion corresponding to the positioning groove.

[0048] In this specific embodiment, the groove is specifically shaped as an isosceles trapezoid, and the corresponding protrusion is shaped as an isosceles trapezoid. Of course, other shapes that can achieve alignment and prevent misalignment are also within the protection scope of this technical solution. For example, the shape of the groove includes trapezoids, triangles, semicircles, arcs, etc.; the shape of the protrusion includes trapezoids, triangles, semicircles, arcs, etc., corresponding to the groove.

[0049] In this specific embodiment, the cross-sectional shape of the positioning groove is an equilateral triangle; the corresponding cross-sectional shape of the positioning convex is an equilateral triangle corresponding to the aforementioned equilateral triangle; of course, other shapes that can achieve alignment and anti-misalignment function are all within the protection scope of this technical solution; for example, the cross-sectional shape of the positioning convex includes triangle, semicircle, arc, trapezoid, etc.; the cross-sectional shape of the positioning groove includes triangle, semicircle, arc, trapezoid, etc. corresponding to the positioning convex. Specific Implementation Example 3:

[0051] The difference between this specific embodiment and Embodiment 2 is that the connection between the heating petal and the heating leg is bonded with resin, including epoxy resin and phenolic resin. Specific Implementation Example 4:

[0053] The difference between this specific embodiment and Embodiment 2 is that the first limiting structure is provided with a ridge or groove (not shown in the figure), and the third limiting structure is provided with a groove corresponding to the ridge or a ridge corresponding to the groove; for example, the cross-sectional shape of the ridge includes triangle, semicircle, arc, trapezoid, etc.; the cross-sectional shape of the groove includes triangle, semicircle, arc, trapezoid, etc. corresponding to the ridge. Through the structure of the ridge and groove cooperating, the connection between the heating petal and the heating leg can be made more neat and stable.

[0054] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A heater, comprising a heating element (1) and a heating leg (2), characterized in that: The heating leg (2) has a first limiting structure (21) at the top center, and a second limiting structure (22) is provided on both sides of the first limiting structure (21); The bottom of the heating valve (1) is provided with a third limiting structure (11) that matches the first limiting structure (21), and a fourth limiting structure (12) that matches the second limiting structure (22) is provided on both sides of the third limiting structure (11). The first limiting structure (21) adopts a protrusion or a groove, the third limiting structure (11) adopts a groove corresponding to the protrusion or a protrusion corresponding to the groove; the second limiting structure (22) adopts a positioning protrusion or a positioning groove, and the fourth limiting structure (12) adopts a positioning groove corresponding to the positioning protrusion or a positioning protrusion corresponding to the positioning groove. The heating valve (1) sits on the heating leg (2) and is connected by the first limiting structure (21) cooperating with the third limiting structure (11) and the second limiting structure (22) cooperating with the fourth limiting structure (12).

2. A heater as claimed in claim 1, wherein The groove can be trapezoidal, triangular, semi-circular, or arc-shaped; the protrusion can be trapezoidal, triangular, semi-circular, or arc-shaped, corresponding to the groove.

3. The heater of claim 1, wherein The cross-sectional shape of the positioning protrusion includes triangle, semicircle, arc, and trapezoid; the cross-sectional shape of the positioning groove includes triangle, semicircle, arc, and trapezoid corresponding to the positioning protrusion.

4. The heater of claim 1, wherein A graphite paper gasket (3) is installed on the contact surface where the heating petal (1) and the heating leg (2) are connected.

5. The heater of claim 1, wherein The connection between the heating petal (1) and the heating leg (2) is bonded with resin, which includes epoxy resin and phenolic resin.

6. The heater of claim 1, wherein The first limiting structure (21) is provided with a ridge protrusion or a ridge groove, and the third limiting structure (11) is provided with a ridge groove corresponding to the ridge protrusion or a ridge protrusion corresponding to the ridge groove.

7. A single crystal furnace characterized by comprising: The single crystal furnace is equipped with a heater as described in any one of claims 1-6.

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