A bracket welding process device for producing and processing lithium battery thermal conductive sheet

Abstract

The present invention relates to the field of lithium battery technology, specifically a support welding process device for the production and processing of lithium battery thermal conductive sheets, including a box cover and a box body that are arranged in a coordinated manner, a processing cavity is provided on the inner upper part of the box body, a ventilation cavity is provided on the lower side of the processing cavity, an axial flow fan is also installed on the box body between the processing cavity and the ventilation cavity, a refrigeration element is provided at the bottom of the ventilation cavity corresponding to the axial flow fan, an air distribution mesh plate is installed at the lower part of the processing cavity, a ceramic heat conductive plate is fixed on the upper side of the air distribution mesh plate in the processing cavity through an annular heat insulation plate, a plurality of ventilation holes are provided on the ceramic heat conductive plate, a heat conductive cylinder is installed on the top outer ring of the ceramic heat conductive plate, and a plurality of heating components are installed at the bottom of the ceramic heat conductive plate; a plurality of ventilation pipes are also circumferentially distributed on the outer side of the box body, the upper end of the ventilation pipe is located on the upper side of the heat conductive cylinder, and the lower end of the ventilation pipe is connected to the bottom of the ventilation cavity. The present invention has good heating uniformity, high cooling efficiency after welding, and improves processing quality and efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of lithium batteries, in particular to a bracket welding process device for producing and processing lithium battery thermal conductive sheets. Background Art

[0002] China's lithium battery industry is developing rapidly, the application areas of lithium batteries are constantly expanding, the demand is also increasing, and the related industries are also growing and developing. When lithium batteries are produced and processed, the thermal conductive sheet needs to be welded to the bracket (welding is a manufacturing process and technology that uses heating, high temperature or high pressure to join metals or other thermoplastic materials, such as plastics).

[0003] However, the existing welding device has a single traditional structure, poor heating uniformity, and low cooling efficiency after welding, which affects the processing quality and efficiency and needs to be improved. Therefore, in view of the above situation, it is urgent to develop a bracket welding process device for the production and processing of lithium battery thermal conductive sheets to overcome the shortcomings in current practical applications. Summary of the invention

[0004] The purpose of the embodiment of the present invention is to provide a bracket welding process device for producing and processing lithium battery thermal conductive sheets to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the embodiments of the present invention provide the following technical solutions:

[0006] A support welding process device for the production and processing of lithium battery thermal conductive sheets, comprising a box cover and a box body that are arranged in coordination, a processing cavity is provided on the upper inner side of the box body, a ventilation cavity is provided on the lower side of the processing cavity, an axial flow fan for conveying air in the processing cavity to the ventilation cavity is also installed on the box body between the processing cavity and the ventilation cavity, a refrigeration element is provided at the bottom of the ventilation cavity corresponding to the axial flow fan, an air distribution mesh plate is installed at the lower part of the processing cavity, a ceramic heat conductive plate is fixed on the upper side of the air distribution mesh plate in the processing cavity through an annular heat insulation plate, a plurality of ventilation holes are provided on the ceramic heat conductive plate, a heat conductive cylinder is installed on the top outer ring of the ceramic heat conductive plate, and a plurality of heating components corresponding to the ventilation holes are installed on the bottom of the ceramic heat conductive plate; a plurality of ventilation pipes are also circumferentially distributed on the outer side of the box body, the upper end of the ventilation pipe is located on the upper side of the heat conductive cylinder, and the lower end of the ventilation pipe is connected to the bottom of the ventilation cavity.

[0007] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0008] The support welding process device for the production and processing of lithium battery thermal conductive sheets is arranged by the matching structure of the ceramic thermal conductive plate and the heating component. When the workpiece is placed on the ceramic thermal conductive plate, the workpiece can be evenly heated to improve the quality of welding. The workpiece can be protected by the heat conductive tube, and the heat conductive tube has a heat conductive effect, which further improves the welding effect of the workpiece. After the welding process is completed, the heating component is controlled to stop working, and the refrigeration element and the axial flow fan are controlled to work at the same time. The axial flow fan can extract the air in the processing chamber, and the air in the processing chamber flows rapidly through the ventilation holes opened on the ceramic thermal conductive plate, which can quickly take away the heat of the heating component and the ceramic thermal conductive plate, and the air distribution mesh plate can distribute the air uniformly to avoid affecting the welding cooling of the ceramic thermal conductive plate. The hot air transported to the ventilation chamber by the axial flow fan can be quickly cooled by the refrigeration element, and transported to the ventilation pipe, and then discharged from the upper end of the ventilation pipe to the upper part of the heat conductive tube again, forming a cyclic rapid cooling effect. In addition, the ceramic thermal conductive plate can also be stably supported by the annular heat insulation plate, and has a heat insulation effect, thereby improving the thermal utilization rate of the ceramic thermal conductive plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the front cross-sectional structure of an embodiment of the present invention.

[0010] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure along the AA direction.

[0011] Figure 3 It is a schematic diagram of the three-dimensional structure of the heating component in an embodiment of the present invention.

[0012] Figure 4 Schematic diagram of the top view of the heating assembly in an embodiment of the present invention.

[0013] In the figure: 1-box cover, 2-handle, 3-heat conduction tube, 4-ventilation hole, 5-ceramic heat conduction plate, 6-ventilation pipe, 7-annular heat insulation board, 8-box, 9-heating component, 10-air distribution mesh plate, 11-processing chamber, 12-ventilation chamber, 13-shock-absorbing foot pad, 14-refrigeration element, 15-axial flow fan, 16-arc electric heating rod. DETAILED DESCRIPTION

[0014] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0015] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0016] Example 1

[0017] See also Figure 1 In the embodiment of the present invention, a support welding process device for producing and processing a lithium battery thermal conductive sheet includes a box cover 1 and a box body 8 that are arranged in a coordinated manner. A processing cavity 11 is provided at the upper inner portion of the box body 8, and a ventilation cavity 12 is provided at the lower side of the processing cavity 11. An axial flow fan 15 for conveying air in the processing cavity 11 to the ventilation cavity 12 is also installed on the box body 8 between the processing cavity 11 and the ventilation cavity 12. A cooling element 14 is provided at the bottom of the ventilation cavity 12 corresponding to the axial flow fan 15. The lower portion of the processing cavity 11 is provided with a cooling element 14. An air distribution mesh plate 10 is installed, and a ceramic heat-conducting plate 5 is supported and fixed on the upper side of the air distribution mesh plate 10 in the processing chamber 11 through an annular heat insulation plate 7. A plurality of ventilation holes 4 are opened on the ceramic heat-conducting plate 5, and a heat-conducting tube 3 is installed on the top outer ring of the ceramic heat-conducting plate 5. A plurality of heating components 9 corresponding to the ventilation holes 4 are installed on the bottom of the ceramic heat-conducting plate 5; a plurality of ventilation pipes 6 are also circumferentially distributed on the outer side of the box body 8, and the upper ends of the ventilation pipes 6 are located on the upper side of the heat-conducting tube 3, and the lower ends of the ventilation pipes 6 are connected to the bottom of the ventilation chamber 12.

[0018] In the embodiment of the present invention, through the matching structure of the ceramic heat-conducting plate 5 and the heating component 9, when the workpiece is placed on the ceramic heat-conducting plate 5, the workpiece can be evenly heated to improve the quality of welding; the workpiece can be protected by the heat-conducting tube 3, and the heat-conducting tube 3 has a heat-conducting effect, which further improves the welding effect of the workpiece; after the welding process is completed, the heating component 9 is controlled to stop working, and the cooling element 14 and the axial flow fan 15 are controlled to work, and the axial flow fan 15 can extract the air in the processing chamber 11, and the air in the processing chamber 11 passes through the ceramic heat-conducting plate 5. The ventilation holes 4 flow quickly and can quickly take away the heat of the heating component 9 and the ceramic heat conductive plate 5, and the air distribution mesh plate 10 can distribute the air to avoid affecting the melting cooling of the ceramic heat conductive plate 5. The hot air delivered to the ventilation cavity 12 by the axial flow fan 15 can be quickly cooled by the refrigeration element 14, and delivered to the ventilation pipe 6, and then discharged from the upper end of the ventilation pipe 6 to the upper part of the heat conductive tube 3, forming a cyclic rapid cooling effect; in addition, the ceramic heat conductive plate 5 can also be stably supported by the annular heat insulating plate 7, and has a heat insulating effect, thereby improving the thermal utilization rate of the ceramic heat conductive plate 5.

[0019] Example 2

[0020] See also Figure 1-4 The difference between this embodiment and embodiment 1 is that:

[0021] In this embodiment, Figure 1As shown, the box cover 1 is made of transparent material to facilitate observation; a plurality of handles 2 are provided on the top of the box cover 1, and the box cover 1 can be opened and closed conveniently by means of the handles 2; a plurality of shock-absorbing pads 13 are installed at the bottom of the box body 8, and the shock-absorbing pads 13 can be used to provide shock-absorbing support for the device, and the specific structure of the shock-absorbing pads 13 can adopt the existing technology without specific limitation.

[0022] In this embodiment, the ceramic heat conducting plate 5 is a rectangular structure, and an annular heat insulating plate 7 is installed on the outer side of the ceramic heat conducting plate 5, and the outer ring of the annular heat insulating plate 7 is connected and fixed to the side wall of the processing cavity 11; the plurality of ventilation holes 4 provided on the ceramic heat conducting plate 5 are arranged in a matrix, and the ventilation holes 4 are cylindrical holes provided through the upper and lower surfaces of the ceramic heat conducting plate 5; Figure 3 and 4 As shown, the heating component 9 includes a plurality of arc-shaped electric heating rods 16 with 1 / 2 circular structures evenly distributed circumferentially, and the middle parts of the plurality of arc-shaped electric heating rods 16 are gathered and fixed together, and both ends of the arc-shaped electric heating rods 16 are connected and fixed to the lower surface of the ceramic heat-conducting plate 5, and the central axis of the ventilation hole 4 passes through the middle of the arc-shaped electric heating rod 16. The heating component 9 has a good heating effect on the ceramic heat-conducting plate 5, and can quickly dissipate heat and cool down after welding, thereby improving work efficiency.

[0023] In this embodiment, the air distribution mesh plate 10 is horizontally arranged in the middle position of the lower space of the heating component 9, the axial flow fan 15 is installed in the middle position between the processing chamber 11 and the ventilation chamber 12, the refrigeration element 14 is a rectangular structure with the same top view shape as the ceramic heat conductive plate 5, and the area of ​​the refrigeration element 14 is 1 / 2 of the area of ​​the ceramic heat conductive plate 5, the ventilation pipe 6 is a U-shaped structure, the vertical part of the ventilation pipe 6 is arranged close to the outer wall of the box body 8, the upper horizontal part of the ventilation pipe 6 is located on the upper side of the heat conductive tube 3, and the upper horizontal part end of the ventilation pipe 6 is located on the upper side of the outer circle of the inner cavity of the heat conductive tube 3, the ventilation pipe 6 is used to transport cold air to the upper part of the processing chamber 11, so that the ventilation hole 4 continuously flows air, so as to achieve the purpose of quickly cooling the ceramic heat conductive plate 5 and the heating component 9.

[0024] In this embodiment, the heating component 9, axial flow fan 15 and cooling element 14 can be controlled by a PLC controller disclosed in the prior art. The specific models and circuit connections of the PLC controller, heating component 9, axial flow fan 15 and cooling element 14 are not specifically limited and can be flexibly set in actual application.

[0025] The circuits, electronic components and modules involved are all prior art and can be fully implemented by those skilled in the art. Needless to say, the content protected by the present invention does not involve improvements to software programs.

[0026] The above are only preferred embodiments of the present invention. It should be pointed out that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present invention. These should also be regarded as the protection scope of the present invention. These will not affect the effect of the implementation of the present invention and the practicality of the patent.

Claims

1. A support welding process device for producing and processing lithium battery thermal conductive sheets, comprising a box cover (1) and a box body (8) arranged in coordination, characterized in that: A processing chamber (11) is provided at the upper inner portion of the box body (8), a ventilation chamber (12) is provided at the lower inner portion of the processing chamber (11), and an axial flow fan (15) for conveying air in the processing chamber (11) to the ventilation chamber (12) is also installed on the box body (8) between the processing chamber (11) and the ventilation chamber (12); A refrigeration element (14) is provided at the bottom of the ventilation cavity (12) corresponding to the axial flow fan (15); An air distribution mesh plate (10) is installed at the bottom of the processing chamber (11); a ceramic heat conduction plate (5) is supported and fixed on the upper side of the air distribution mesh plate (10) in the processing chamber (11) through an annular heat insulation plate (7); and a plurality of ventilation holes (4) are provided on the ceramic heat conduction plate (5); A heat-conducting tube (3) is installed on the top outer ring of the ceramic heat-conducting plate (5), and a plurality of heating components (9) corresponding to the ventilation holes (4) are installed on the bottom of the ceramic heat-conducting plate (5); A plurality of ventilation pipes (6) are also circumferentially arranged on the outer side of the box body (8), the upper end of the ventilation pipe (6) is located on the upper side of the heat-conducting cylinder (3), and the lower end of the ventilation pipe (6) is connected to the bottom of the ventilation cavity (12); The ceramic heat conducting plate (5) is a rectangular structure, and an annular heat insulating plate (7) is mounted on the outer side of the ceramic heat conducting plate (5), and the outer ring of the annular heat insulating plate (7) is connected and fixed to the side wall of the processing cavity (11); The plurality of ventilation holes (4) provided on the ceramic heat conducting plate (5) are arranged in a matrix, and the ventilation holes (4) are cylindrical holes provided through the upper and lower surfaces of the ceramic heat conducting plate (5); The heating assembly (9) comprises a plurality of arc-shaped electric heating rods (16) with a 1 / 2 circular ring structure evenly distributed in the circumference, and the middle parts of the plurality of arc-shaped electric heating rods (16) are gathered and fixed together, the two ends of the arc-shaped electric heating rods (16) are connected and fixed to the lower surface of the ceramic heat conducting plate (5), and the central axis of the ventilation hole (4) passes through the middle part of the arc-shaped electric heating rod (16); The cooling element (14) is a rectangular structure having the same shape as the ceramic heat conducting plate (5) when viewed from above, and the area of ​​the cooling element (14) is 1 / 2 of the area of ​​the ceramic heat conducting plate (5).

2. The support welding process device for producing and processing lithium battery thermal conductive sheets according to claim 1 is characterized in that: The box cover (1) is made of a transparent material, and a plurality of handles (2) are provided on the top of the box cover (1).

3. The support welding process device for producing and processing lithium battery thermal conductive sheets according to claim 2 is characterized in that: A plurality of shock-absorbing pads (13) are installed at the bottom of the box (8).

4. The support welding process device for producing and processing a lithium battery thermal conductive sheet according to claim 1, characterized in that: The air distribution screen plate (10) is horizontally arranged at the middle position of the space below the heating component (9).

5. The support welding process device for producing and processing the lithium battery thermal conductive sheet according to claim 1 or 4, characterized in that: The axial flow fan (15) is installed at a middle position between the processing chamber (11) and the ventilation chamber (12).

6. The support welding process device for producing and processing a lithium battery thermal conductive sheet according to claim 4, characterized in that: The ventilation pipe (6) is of a U-shaped structure, the vertical portion of the ventilation pipe (6) is arranged in close contact with the outer wall of the box body (8), the upper horizontal portion of the ventilation pipe (6) is located on the upper side of the heat-conducting tube (3), and the end of the upper horizontal portion of the ventilation pipe (6) is located on the upper side of the outer ring of the inner cavity of the heat-conducting tube (3).

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