A heat shield cover plate for an electric heating wire of an aging oven

Abstract

The utility model relates to liquid crystal screen processing technical field discloses a kind of heat insulation cover plates of electric heating wire for ageing oven, including air duct, the upper side of air duct is provided with cover plate, the inside of cover plate is provided with heat insulation layer, the upper side of air duct is provided with through hole with the clearance cooperation of the outer wall around cover plate, the inside of air duct is provided with heating device, the both sides of heating device are provided with bracing plate, the upper side of bracing plate is fixedly connected in the lower side of cover plate, the upper side of cover plate is provided with multiple connecting mechanisms, the lower side of connecting mechanism is arranged in the upper side of air duct. In the utility model, by heating device, air duct, cover plate, bracing plate, heating device, heat insulation layer and connecting mechanism, to improve the problem that the sealing of air duct or airflow path is destroyed in the inspection and maintenance of heating wire currently, leading to the uneven distribution of circulating air after heating, and further affecting the overall temperature stability of oven.

Description

Technical Field

[0001] This utility model relates to the field of LCD screen processing technology, and in particular to a heat insulation cover plate for an electric heating wire used in an aging oven. Background Technology

[0002] A liquid crystal display (LCD) screen uses liquid crystal material as its basic component. The liquid crystal material is filled between two parallel plates. By changing the arrangement of molecules inside the liquid crystal material through voltage, and by blocking and transmitting light, it can display images of varying depths and staggered shapes.

[0003] Before LCD screens are released to the market, they need to undergo aging tests. The purpose of these tests is to check for initial defects in the LCD modules and prevent substandard products from entering the market. Currently, when conducting aging tests on LCD screens, aging ovens are typically used to maintain a high temperature to simulate the high-temperature environment in aging tests.

[0004] During the use of aging ovens, the heating wires used for heating need to be inspected and maintained regularly. However, the heating wires are currently installed inside the pipes. During maintenance, it is necessary to remove part of the pipes. In the process of disassembly and reassembly, the airtightness of the air duct or the airflow path may be damaged, resulting in uneven distribution of circulating air after heating, which in turn affects the overall temperature stability of the oven. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides a heat insulation cover for the electric heating wire of an aging oven, aiming to improve the current problem that during the inspection and maintenance of the heating wire, the airtightness of the air duct or the airflow path is damaged, resulting in uneven distribution of circulating air after heating, which in turn affects the overall temperature stability of the oven.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a heat-insulating cover plate for an electric heating wire in an aging oven, comprising an air duct, a cover plate disposed on the upper side of the air duct, a heat-insulating layer disposed inside the cover plate, a through hole provided on the upper side of the air duct that fits with the outer wall of the cover plate, a heating device disposed inside the air duct, support plates disposed on both sides of the heating device, the upper side of the support plates being fixedly connected to the lower side of the cover plate, a plurality of connecting mechanisms disposed on the upper side of the cover plate, and the lower side of the connecting mechanisms being disposed on the upper side of the air duct.

[0007] The above technical solution improves the current problem of uneven distribution of circulating air after heating and affecting the overall temperature stability of the oven by using a modular design of the heating device, a heat insulation layer, and a combination of cover plate and support plate. This is achieved through the modular design of the heating device, the heat insulation of the insulation layer, and the cooperation of cover plate and support plate.

[0008] Preferably, a fixing seat is fixedly connected to the upper side of the air duct, a fastening plate is provided on the upper side of the fixing seat, the lower side of the fastening plate is fixedly connected to the upper side of the cover plate, the connecting mechanism is provided on the upper side of the fastening plate, and the lower side of the connecting mechanism is provided inside the fixing seat.

[0009] Preferably, the heating device is at an angle of 45° to the horizontal direction.

[0010] Preferably, the connecting mechanism includes a fastening bolt, which is disposed on the upper side of the fastening plate. A threaded hole is provided on the upper side of the fixing seat, and the lower end of the fastening bolt is threadedly connected to the inner wall of the threaded hole on the upper side of the fixing seat.

[0011] Preferably, the connecting mechanism includes a knob disposed on the upper side of the fastening plate, a connecting post one fixedly connected to the lower side of the knob, a sliding post disposed on the lower side of the fastening plate, the upper side of the sliding post fixedly connected to the lower side of the connecting post one, the outer wall of the connecting post one rotatably connected to the inner wall of the fastening plate, a connecting post two fixedly connected to the lower side of the sliding post, and a rectangular locking block fixedly connected to the lower side of the connecting post two. The sliding post, the connecting post two, and the rectangular locking block are all slidably connected to the inner wall of the fixing seat, and the upper side of the rectangular locking block is in contact with the inner top wall of the fixing seat.

[0012] Preferably, the interior of the fixing base is provided with a circular slide groove 1, a rectangular slide groove and a circular slide groove 2 sequentially from top to bottom. The circular slide groove 1 passes through the upper side of the fixing base, the lower side of the circular slide groove 1 communicates with the upper side of the rectangular slide groove, the lower side of the rectangular slide groove communicates with the upper side of the circular slide groove 2, the outer wall of the rectangular block passes through the circular slide groove 1 and the rectangular slide groove, the upper side of the rectangular block is in contact with the inner top wall of the circular slide groove 2, the connecting post 2 passes through the circular slide groove 1 and is disposed inside the rectangular slide groove, and the outer wall of the connecting post is in contact with the inner wall of the circular slide groove 1.

[0013] Preferably, the cover plate has a groove inside, the upper side of the groove is connected to the lower side of the circular slide groove II, the lower side of the rectangular block is provided with a stop plate, the outer wall of the stop plate is slidably connected to the inner wall of the circular slide groove II, the lower side of the stop plate is fixedly connected with a spring, the spring is disposed inside the groove, and the lower end of the spring is fixedly connected to the inner bottom wall of the groove.

[0014] Preferably, a handle is fixedly connected to the upper side of the fastening plate.

[0015] This utility model has the following beneficial effects: 1. In this utility model, a heating device provides heat to the airflow in the air duct. Through the modular design of the heating device, a cover plate provides support for the support plate, thereby supporting the heating device. This allows for quick assembly and disassembly of the heating device by removing and installing the cover plate. Furthermore, through the cooperation of the heat insulation layer and the connecting mechanism, the current problem of damaging the air duct's seal or airflow path during the inspection and maintenance of the heating wire, resulting in uneven distribution of circulating air after heating, and thus affecting the overall temperature stability of the oven, is improved.

[0016] 2. In this utility model, the design of the connecting mechanism as a fastening bolt allows the heating device to be easily installed and disassembled through the threaded connection between the fastening bolt and the fixing seat.

[0017] 3. In this utility model, the connecting mechanism is designed to consist of a knob, a first connecting column, a sliding column, a second connecting column, and a rectangular locking block. By rotating the knob, the rectangular locking block and the inner top wall of the fixed base can be fitted and separated, thereby realizing the function of easy installation and disassembly of the heating device. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the heat insulation cover plate for the electric heating wire of an aging oven proposed in this utility model. Figure 2 This is a schematic diagram of the connection mechanism of the heat insulation cover plate for the electric heating wire of an aging oven proposed in this utility model. Figure 3 This is a schematic diagram of the connection assembly of the heat insulation cover plate for the electric heating wire of an aging oven proposed in this utility model. Figure 4 This is a partial cross-sectional structural diagram of the heat insulation cover plate of the electric heating wire for an aging oven proposed in this utility model. Figure 5 for Figure 4 Enlarged view of point A in the middle; Figure 6 This is a partial cross-sectional structural diagram of the fixing seat of the heat insulation cover plate for the electric heating wire of the aging oven proposed in this utility model.

[0019] Legend: 1. Air duct; 2. Fixing base; 3. Connecting mechanism; 300. Fastening bolt; 310. Knob; 311. Connecting column one; 312. Sliding column; 313. Connecting column two; 314. Rectangular locking block; 4. Handle; 5. Fastening plate; 6. Cover plate; 7. Support plate; 8. Heating device; 9. Insulation layer; 10. Spring; 11. Groove; 12. Support plate; 13. Circular slide groove one; 14. Rectangular slide groove; 15. Circular slide groove two. Detailed Implementation

[0020] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] Example 1, refer to Figure 1 , Figure 2 and Figure 4 An embodiment of this utility model provides a heat insulation cover for an electric heating wire in an aging oven, comprising an air duct 1, a cover plate 6 disposed on the upper side of the air duct 1, a heat insulation layer 9 disposed inside the cover plate 6, a through hole on the upper side of the air duct 1 that fits with the outer wall of the cover plate 6, a heating device 8 disposed inside the air duct 1, support plates 7 disposed on both sides of the heating device 8, the upper side of the support plates 7 being fixedly connected to the lower side of the cover plate 6, a plurality of connecting mechanisms 3 disposed on the upper side of the cover plate 6, and the lower side of the connecting mechanisms 3 being disposed on the upper side of the air duct 1.

[0022] In this embodiment, Figure 1 The directions are front, back, left, and right. Specifically, the heat insulation layer 9 is made of high-temperature resistant glass wool, aluminum silicate wool, or high-temperature resistant silicone sponge; the heating device 8 is an electric heating wire, which is an electrical component that uses the thermal effect of electric current to convert electrical energy into heat energy, which is existing technology; during use, the air flows from the left side to the right of the air duct 1, and after being heated by the heating device 8, it enters the aging oven from the lower air duct 1 to provide and maintain the temperature for the LCD screen aging test. During this period, the heat insulation layer 9 inside the cover plate 6 insulates the air duct 1, so that the temperature inside the air duct 1 will not overflow from the cover plate 6, thereby realizing the heat insulation function of the cover plate 6.

[0023] When the heating device 8 needs to be inspected or repaired, the connection between the cover plate 6 and the air duct 1 is released through the connecting mechanism 3, the cover plate 6 is moved upward, and the heating device 8 is removed from the air duct 1, thereby separating the heating device 8 from the air duct 1. The modular design of the heating device 8 makes the inspection or repair of the heating device 8 more convenient. After the heating device 8 is inspected or repaired, it is placed back into the air duct 1, so that the lower part of the outer wall of the cover plate 6 enters the through hole on the upper side of the air duct 1. The two fit together tightly, and the connection between the cover plate 6 and the air duct 1 is completed through the connecting mechanism 3. This improves the current problem in the inspection and maintenance of heating wires, which involves damaging the airtightness of the air duct 1 or the airflow path, resulting in uneven distribution of circulating air after heating, and thus affecting the overall temperature stability of the oven.

[0024] Reference Figure 1A fixed seat 2 is fixedly connected to the upper side of the air duct 1. A fastening plate 5 is provided on the upper side of the fixed seat 2. The lower side of the fastening plate 5 is fixedly connected to the upper side of the cover plate 6. A connecting mechanism 3 is provided on the upper side of the fastening plate 5. The lower side of the connecting mechanism 3 is provided inside the fixed seat 2.

[0025] Specifically, the air duct 1 provides support for the fixed seat 2, which in turn provides support for the fastening plate 5. The fastening plate 5 and the cover plate 6 are fixedly connected, which in turn provides support for the cover plate 6. The connection between the fixed seat 2 and the connecting mechanism 3 is used to achieve the connection and fixation between the fastening plate 5 and the air duct 1, thereby achieving the connection and fixation between the air duct 1 and the cover plate 6.

[0026] Reference Figure 2 The angle between the heating device 8 and the horizontal direction is 45°.

[0027] Specifically, the angle design of the heating device 8 makes it easier for the heating device 8 to come into contact with the airflow, thereby improving the heat transfer efficiency.

[0028] Reference Figure 2 The connecting mechanism 3 includes a fastening bolt 300, which is disposed on the upper side of the fastening plate 5. A threaded hole is provided on the upper side of the fixing seat 2, and the lower end of the outer wall of the fastening bolt 300 is threadedly connected to the inner wall of the threaded hole on the upper side of the fixing seat 2.

[0029] Specifically, when installing the heating device 8, the lower end of the fastening bolt 300 is passed through the upper and lower sides of the fastening plate 5, and a tool is used to screw the lower thread of the fastening bolt 300 into the threaded hole on the upper side of the fixing seat 2, thus completing the connection and fixation between the fastening plate 5 and the fixing seat 2. When disassembling the heating device 8, it is only necessary to unscrew the fastening bolt 300 from the fixing seat 2 to remove the heating device 8 from the air duct 1, thereby realizing the function of easy installation and disassembly of the heating device 8.

[0030] Example 2, refer to Figure 3 and Figure 4 This utility model also provides an embodiment in which the connecting mechanism 3 includes a knob 310, which is disposed on the upper side of the fastening plate 5. A connecting post 311 is fixedly connected to the lower side of the knob 310. A sliding post 312 is disposed on the lower side of the fastening plate 5. The upper side of the sliding post 312 is fixedly connected to the lower side of the connecting post 311. The outer wall of the connecting post 311 is rotatably connected to the inner wall of the fastening plate 5. A connecting post 313 is fixedly connected to the lower side of the sliding post 312. A rectangular locking block 314 is fixedly connected to the lower side of the connecting post 313. The sliding post 312, the connecting post 313, and the rectangular locking block 314 are all slidably connected to the inner wall of the fixing seat 2. The upper side of the rectangular locking block 314 is in contact with the inner top wall of the fixing seat 2.

[0031] Specifically, when installing the heating device 8, the two sides of the fastening plate 5 are pressed against the upper side of the fixing base 2, so that the lower part of the outer wall of the cover plate 6 enters the through hole opened on the upper side of the air duct 1. Through the gap fit between the two, they are tightly fitted together. During this period, the sliding column 312, the second connecting column 313, and the rectangular locking block 314 pass through the upper side of the fixing base 2 and enter the interior of the fixing base 2. By rotating the knob 310, the first connecting column 311 is rotated, causing the sliding column 312 to rotate, which in turn causes the second connecting column 313 to rotate, causing the rectangular locking block 314 to rotate, and rotate until the rectangular locking block... The upper side of the rectangular block 314 is in contact with the inner top wall of the fixing base 2 and forms a vertical interference, thus completing the connection between the fastening plate 5 and the fixing base 2. Through the interference between the upper side of the rectangular block 314 and the inner top wall of the fixing base 2, the rectangular block 314 cannot be pulled out, thus completing the fixation between the fastening plate 5 and the fixing base 2. When it is necessary to disassemble the heating device 8, turn the knob 310 so that the upper side of the rectangular block 314 is no longer in contact with the inner top wall of the fixing base 2, and the rectangular block 314 can be pulled out to complete the disassembly of the heating device 8, thereby realizing the function of easy installation and disassembly of the heating device 8.

[0032] Reference Figure 4 and Figure 6 The interior of the fixed base 2 is provided with a circular slide groove 13, a rectangular slide groove 14 and a circular slide groove 15 from top to bottom. The circular slide groove 13 passes through the upper side of the fixed base 2. The lower side of the circular slide groove 13 communicates with the upper side of the rectangular slide groove 14. The lower side of the rectangular slide groove 14 communicates with the upper side of the circular slide groove 15. The outer wall of the rectangular block 314 passes through the circular slide groove 13 and the rectangular slide groove 14. The upper side of the rectangular block 314 is in contact with the inner top wall of the circular slide groove 15. The connecting post 2 313 passes through the circular slide groove 13 and is located inside the rectangular slide groove 14. The outer wall of the sliding post 312 is in contact with the inner wall of the circular slide groove 13.

[0033] Specifically, rectangular slide 14 is a slot with the same width and length as connecting post 2 313, and circular slide 2 15 is a slot that allows connecting post 2 313 to rotate. When installing heating device 8, rotate knob 310 and pass rectangular block 314 through circular slide 13 and rectangular slide 14 in sequence, so that connecting post 2 313 passes through circular slide 13 and enters the interior of rectangular slide 14, thereby placing slide post 312 inside circular slide 13. Rotate knob 310 to drive rectangular block 314 to rotate, so that rectangular block 314 and rectangular slide 14... When the vertical projections of the rectangular block 314 and the inner top wall of the circular slide 15 do not coincide, the rectangular block 314 and the circular slide 15 are in contact, forming vertical interference, which makes it impossible for the rectangular block 314 to be pulled out, thus completing the connection and fixation between the fastening plate 5 and the fixing seat 2. When disassembling the heating device 8, turn the knob 310 to make the vertical projections of the rectangular block 314 and the rectangular slide 14 coincide. At this time, the rectangular block 314 is pulled out from the rectangular slide 14, releasing the fixation between the fastening plate 5 and the fixing seat 2, thus realizing the function of easy disassembly and installation of the heating device 8.

[0034] Reference Figure 4 and Figure 5 The cover plate 6 has a groove 11 inside. The upper side of the groove 11 is connected to the lower side of the circular slide groove 15. The lower side of the rectangular block 314 is provided with a stop plate 12. The outer wall of the stop plate 12 is slidably connected to the inner wall of the circular slide groove 15. The lower side of the stop plate 12 is fixedly connected with a spring 10. The spring 10 is located inside the groove 11, and the lower end of the spring 10 is fixedly connected to the inner bottom wall of the groove 11.

[0035] Specifically, the groove 11 provides space for the spring 10. When the rectangular block 314 slides into the circular slide groove 15, it presses against the abutment 12, causing the abutment 12 to slide downwards and press against the spring 10. When the upper side of the rectangular block 314 and the inner top wall of the circular slide groove 15 form a vertical interference, the spring 10 ensures that the abutment 12 always exerts an upward force on the rectangular block 314, preventing the rectangular block 314 from rotating easily. This helps to improve the connection stability between the fastening plate 5 and the fixing seat 2.

[0036] Reference Figure 1 A handle 4 is fixedly connected to the upper side of the fastening plate 5.

[0037] Specifically, when installing or removing the heating device 8, the heating device 8 can be moved by grasping the handle 4 and applying force, thereby improving the convenience of installing or removing the heating device 8.

[0038] Working principle: When in use, the air flows from the left side to the right of the air duct 1. After being heated by the heating device 8, it enters the aging oven from the lower air duct 1 to provide and maintain the temperature for the LCD screen aging test. During this period, the air duct 1 is insulated by the heat insulation layer 9 inside the cover plate 6, so that the temperature inside the air duct 1 will not overflow from the cover plate 6, thus realizing the heat insulation function of the cover plate 6.

[0039] When the heating device 8 needs to be inspected or repaired, the connection between the fastening plate 5 and the fixed seat 2 is released through the connecting mechanism 3. If the connecting mechanism 3 is a fastening bolt 300, the fastening bolt 300 is unscrewed from the fixed seat 2 using a tool, thus separating the fastening plate 5 and the fixed seat 2. By holding the handle 4 and applying upward force, the support plate 7 on the cover plate 6 is pulled out, thus disassembling the heating device 8. During installation, the fastening bolt 300 is screwed into the fixed seat 2. If the connecting mechanism 3 consists of a knob 310, a first connecting post 311, a sliding post 312, a second connecting post 313, and a rectangular locking block 314, the rectangular locking block 314 is moved by rotating the knob 310. Rotate 14 so that the rectangular locking block 314 and the rectangular slide 14 coincide in the vertical projection. Hold the handle 4 and apply upward force to remove the heating device 8 from the air duct 1, thus completing the disassembly of the heating device 8. During installation, pass the rectangular locking block 314 through the circular slide 13 and the rectangular slide 14, and slide it into the circular slide 15. Rotate the knob 310 so that the rectangular locking block 314 and the rectangular slide 14 do not coincide in the vertical projection, thus completing the installation of the heating device 8. This improves the current problem in the inspection and maintenance of heating wires, where the sealing of the air duct 1 or the airflow path is damaged, resulting in uneven distribution of circulating air after heating, which in turn affects the overall temperature stability of the oven.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A heat-insulating cover plate for an electric heating wire in an aging oven, comprising an air duct (1), characterized in that: The air duct (1) is provided with a cover plate (6) on the upper side. The cover plate (6) is provided with a heat insulation layer (9) inside. The air duct (1) is provided with a through hole that fits with the outer wall of the cover plate (6) around the perimeter. The air duct (1) is provided with a heating device (8) inside. The heating device (8) is provided with support plates (7) on both sides. The upper side of the support plate (7) is fixedly connected to the lower side of the cover plate (6). The upper side of the cover plate (6) is provided with multiple connecting mechanisms (3). The lower side of the connecting mechanism (3) is provided on the upper side of the air duct (1).

2. The heat insulation cover plate for an electric heating wire in an aging oven according to claim 1, characterized in that: The upper side of the air duct (1) is fixedly connected to a fixed seat (2), and a fastening plate (5) is provided on the upper side of the fixed seat (2). The lower side of the fastening plate (5) is fixedly connected to the upper side of the cover plate (6). The connecting mechanism (3) is provided on the upper side of the fastening plate (5), and the lower side of the connecting mechanism (3) is provided inside the fixed seat (2).

3. The heat insulation cover plate for an electric heating wire in an aging oven according to claim 1, characterized in that: The heating device (8) is at an angle of 45° to the horizontal direction.

4. The heat insulation cover plate for an electric heating wire in an aging oven according to claim 2, characterized in that: The connecting mechanism (3) includes a fastening bolt (300), which is located on the upper side of the fastening plate (5). The upper side of the fixing seat (2) has a threaded hole, and the lower end of the outer wall of the fastening bolt (300) is threaded to the inner wall of the threaded hole on the upper side of the fixing seat (2).

5. The heat insulation cover plate for an electric heating wire in an aging oven according to claim 2, characterized in that: The connecting mechanism (3) includes a knob (310), which is located on the upper side of the fastening plate (5). A connecting post (311) is fixedly connected to the lower side of the knob (310). A sliding post (312) is provided on the lower side of the fastening plate (5). The upper side of the sliding post (312) is fixedly connected to the lower side of the connecting post (311). The outer wall of the connecting post (311) is rotatably connected to the inner wall of the fastening plate (5). A connecting post (313) is fixedly connected to the lower side of the sliding post (312). A rectangular block (314) is fixedly connected to the lower side of the connecting post (313). The sliding post (312), the connecting post (313), and the rectangular block (314) are all slidably connected to the inner wall of the fixing seat (2). The upper side of the rectangular block (314) is in contact with the inner top wall of the fixing seat (2).

6. The heat insulation cover plate for an electric heating wire in an aging oven according to claim 5, characterized in that: The interior of the fixed base (2) is provided with a circular slide groove 1 (13), a rectangular slide groove (14) and a circular slide groove 2 (15) from top to bottom. The circular slide groove 1 (13) passes through the upper side of the fixed base (2). The lower side of the circular slide groove 1 (13) communicates with the upper side of the rectangular slide groove (14). The lower side of the rectangular slide groove (14) communicates with the upper side of the circular slide groove 2 (15). The outer wall of the rectangular block (314) passes through the circular slide groove 1 (13) and the rectangular slide groove (14). The upper side of the rectangular block (314) is in contact with the inner top wall of the circular slide groove 2 (15). The connecting post 2 (313) passes through the circular slide groove 1 (13) and is located inside the rectangular slide groove (14). The outer wall of the sliding post (312) is in contact with the inner wall of the circular slide groove 1 (13).

7. The heat insulation cover plate for an electric heating wire in an aging oven according to claim 6, characterized in that: The cover plate (6) has a groove (11) inside. The upper side of the groove (11) is connected to the lower side of the circular slide groove (15). The lower side of the rectangular card block (314) is provided with a stop plate (12). The outer wall of the stop plate (12) is slidably connected to the inner wall of the circular slide groove (15). The lower side of the stop plate (12) is fixedly connected with a spring (10). The spring (10) is located inside the groove (11), and the lower end of the spring (10) is fixedly connected to the inner bottom wall of the groove (11).

8. The heat insulation cover plate for an electric heating wire in an aging oven according to claim 2, characterized in that: A handle (4) is fixedly connected to the upper side of the fastening plate (5).

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