Mesh belt of sintering furnace

Abstract

The utility model discloses a sintering furnace mesh belt, which belongs to the technical field of battery piece sintering, and comprises a mesh belt, two rows of thimbles are arranged on the mesh belt, the thimbles in the same row are arranged in parallel along the transmission direction of the mesh belt, the thimbles in different rows are arranged in a staggered manner along the transmission direction of the mesh belt, the distances between the thimbles in the same row are equal, and the staggered distances between the thimbles in different rows are equal. The two rows of thimbles are arranged in a staggered mode, contact points of the battery pieces and the thimbles are reduced, the poor sintering phenomenon of the contact points is reduced, and the production yield and the conversion efficiency of the battery pieces are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of battery slice sintering, in particular to a sintering furnace mesh belt. Background Art

[0002] Currently, solar cells are mainly crystalline silicon cells. In the production process of solar cells, the solar cells after screen printing need to be transported to the sintering furnace through the sintering furnace mesh belt for sintering.

[0003] At present, the mesh belt of the sintering furnace is woven with heat-resistant metal wire, and the contact between the mesh belt and the battery cell adopts a left-right symmetrical ejector pin design. There is a temperature difference between the ejector pin position and the center position, and the contact point is prone to poor sintering, which reduces the production yield and affects the conversion efficiency of the battery cell. Utility Model Content

[0004] The purpose of the utility model is to provide a sintering furnace mesh belt to solve the above-mentioned problems existing in the prior art.

[0005] Technical solution: A sintering furnace mesh belt, comprising a mesh belt, wherein two rows of ejectors are arranged on the mesh belt, wherein the ejectors in the same row are arranged in parallel along the mesh belt transmission direction, and the ejectors in different rows are arranged staggered along the mesh belt transmission direction, wherein the spacing between the ejectors in the same row is equal, and the staggered distances between the ejectors in different rows are equal.

[0006] Through the above technical solution: the two rows of ejector pins are staggered to reduce the contact points between the battery cell and the ejector pins, reduce the poor sintering phenomenon at the contact point, and improve the production yield and conversion efficiency of the battery cell.

[0007] Preferably, the spacing between the ejector pins in the same row is 40 mm to 60 mm.

[0008] Preferably, the ejector pin comprises a first rod connected to the mesh belt, a second rod is connected to the top of the first rod, and a bottom end of the second rod is connected to the mesh belt.

[0009] Preferably, the ejector pin further comprises a semi-arc, and the semi-arc is arranged at the connection between the first rod and the second rod.

[0010] Preferably, an included angle is formed between the first rod and the mesh belt, and the included angle is 20°~35°.

[0011] Preferably, the mesh belt is woven from heat-resistant metal wires, and the diameter of the metal wires is 1 mm to 1.2 mm.

[0012] In summary, the beneficial effects of the utility model are: staggering the two rows of ejector pins to reduce the contact points between the battery cell and the ejector pins, reducing the phenomenon of poor sintering at the contact points, and improving the production yield and conversion efficiency of the battery cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the mesh belt structure provided by the utility model;

[0014] Figure 2 It is a front view of the mesh belt provided by the utility model.

[0015] The accompanying drawings are marked as follows: 1. mesh belt; 2. ejector pin; 3. first rod; 4. second rod; 5. semi-arc. Implementation

[0016] In the following description, a large number of specific details are given to provide a more thorough understanding of the utility model. However, it is obvious to those skilled in the art that the utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the utility model, some technical features known in the art are not described. Example 1

[0017] like Figure 1 As shown, the sintering furnace mesh belt disclosed in this embodiment includes a mesh belt 1, and two rows of ejector pins 2 are arranged on the mesh belt 1. The ejector pins 2 in the same row are arranged in parallel along the transmission direction of the mesh belt 1, and the ejector pins 2 in different rows are staggered along the transmission direction of the mesh belt 1. The spacing between the ejector pins 2 in the same row is equal, and the staggered distances of the ejector pins 2 in different rows are equal. The two rows of ejector pins 2 are staggered to reduce the contact points between the battery cells and the ejector pins 2, reduce the poor sintering phenomenon at the contact points, and improve the production yield and conversion efficiency of the battery cells.

[0018] like Figure 2 As shown, the spacing between the ejector pins 2 in the same row is 40 mm to 60 mm. The spacing between the ejector pins 2 in the same row can be adjusted to reduce the contact points between the ejector pins 2 and the battery cells while ensuring that the battery cells can be stably supported.

[0019] like Figure 2 As shown, the ejector pin 2 includes a first rod 3 connected to the mesh belt 1 , a second rod 4 is connected to the top of the first rod 3 , and a bottom end of the second rod 4 is connected to the mesh belt 1 .

[0020] like Figure 2 As shown, the first rod 3 and the mesh belt 1 are provided with an angle of 20° to 35°. By adjusting the inclination angle of the first rod 3, the shielding of the battery cell by the first rod 3 can be reduced, thereby improving the sintering effect.

[0021] like Figure 1 As shown, the mesh belt 1 is woven from heat-resistant metal wires, and the diameter of the metal wires is 1 mm to 1.2 mm. By reducing the diameter of the metal wires, the shielding of the battery cells by the mesh belt 1 is reduced, and the sintering effect is further improved. Example 2

[0022] like Figure 1As shown, the sintering furnace mesh belt disclosed in this embodiment includes a mesh belt 1, and two rows of ejector pins 2 are arranged on the mesh belt 1. The ejector pins 2 in the same row are arranged in parallel along the transmission direction of the mesh belt 1, and the ejector pins 2 in different rows are staggered along the transmission direction of the mesh belt 1. The spacing between the ejector pins 2 in the same row is equal, and the staggered distances of the ejector pins 2 in different rows are equal. The ejector pin 2 includes a first rod 3 connected to the mesh belt 1, the top of the first rod 3 is connected to the second rod 4, and the bottom end of the second rod 4 is connected to the mesh belt 1. The ejector pin 2 also includes a semi-arc 5, which is arranged at the connection between the first rod 3 and the second rod 4. The semi-arc 5 limits the battery cell and improves the stability of the battery cell during transmission.

[0023] The remaining parts may be the same as the sintering furnace mesh belt in Example 1.

[0024] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings; however, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, various equivalent transformations can be made to the technical scheme of the present invention, and these equivalent transformations all belong to the protection scope of the present invention.

Claims

1. A sintering furnace mesh belt, characterized in that: The invention comprises a mesh belt (1), wherein two rows of ejector pins (2) are arranged on the mesh belt (1), wherein the ejector pins (2) in the same row are arranged in parallel along the transmission direction of the mesh belt (1), and the ejector pins (2) in different rows are arranged staggered along the transmission direction of the mesh belt (1), wherein the spacing between the ejector pins (2) in the same row is equal, and the staggered distances between the ejector pins (2) in different rows are equal; The ejector pin (2) comprises a first rod (3) connected to the mesh belt (1), the top of the first rod (3) is connected to a second rod (4), and the bottom end of the second rod (4) is connected to the mesh belt (1); The ejector pin (2) further comprises a semi-arc (5), wherein the semi-arc (5) is arranged at the connection between the first rod (3) and the second rod (4); The mesh belt (1) is woven from heat-resistant metal wires, and the diameter of the metal wires is 1 mm to 1.2 mm.

2. A sintering furnace mesh belt according to claim 1, characterized in that: The spacing between the ejector pins (2) in the same row is 40 mm to 60 mm.

3. The sintering furnace mesh belt according to claim 1, characterized in that: An included angle is formed between the first rod (3) and the mesh belt (1), and the included angle is 20° to 35°.

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