Fixing assembly with ceramic heating piece convenient to disassemble and assemble

Abstract

The utility model belongs to the technical field of fixing assemblies, and particularly relates to a fixing assembly with a ceramic heating piece convenient to disassemble and assemble, which comprises a fixing assembly, a placing groove is formed in the fixing assembly, a pressure roller and a heating roller are sequentially arranged on the inner side of the placing groove from top to bottom, and the ceramic heating piece is arranged on the top surface of one side, facing the pressure roller, of the heating roller. A plurality of clamping structures which are evenly distributed at equal intervals are fixedly connected to the bottom face of the ceramic heating piece, and the ceramic heating piece is detachably connected with the heating roller through the clamping structures. Maintenance convenience and long-term use stability of the fixing assembly are improved, inconvenience and cost burden caused by maintenance are reduced, and the fixing assembly conforms to the technical development trend of improving overall performance of a printer and user experience.

Description

Technical Field

[0001] The utility model belongs to the technical field of fixing assemblies, and particularly relates to a fixing assembly with a ceramic heating sheet that is convenient to disassemble and assemble. Background Art

[0002] The fixing assembly is a core component in a printer, and its function is to melt and fix the toner on the paper to be fixed in the printer onto the paper at high temperature and high pressure to form a fixed pattern. Currently, the common printer fixing assemblies used in laser printers on the market are divided into lamp tube heating type, ceramic sheet heating type, and electromagnetic induction heating type.

[0003] In the existing ceramic sheet heating type, the ceramic heating sheet is pasted on the heating roller with glue. Once the ceramic heating sheet is damaged and needs to be replaced, the gluing method will make the disassembly difficult, increasing the maintenance cost and time. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a fixing assembly with a ceramic heating sheet that is convenient to disassemble and assemble to solve the above problems.

[0005] To achieve the above purpose, the utility model provides the following scheme:

[0006] A fixing assembly with a ceramic heating sheet that is convenient to disassemble and assemble, including: a fixing assembly, a placing groove is formed in the fixing assembly, a pressure roller and a heating roller are sequentially arranged inside the placing groove from top to bottom, a ceramic heating sheet is arranged on the top surface of one side of the heating roller facing the pressure roller, a plurality of uniformly and equally spaced clamping structures are fixedly connected to the bottom surface of the ceramic heating sheet, and the ceramic heating sheet is detachably connected to the heating roller through the clamping structures.

[0007] Preferably, the heating roller includes a heating roller body, a second placement groove is formed on one side of the end face of the heating roller body close to the pressure roller, a temperature protection switch is fixedly connected inside the second placement groove, and the temperature protection switch is electrically connected to an external controller.

[0008] Preferably, a plurality of first placement grooves are formed on one side of the end face of the heating roller body close to the pressure roller, the plurality of first placement grooves are uniformly and equally spaced along the axial direction of the heating roller body, a temperature sensor is fixedly connected inside the first placement groove, and the temperature sensor is electrically connected to the external controller.

[0009] Preferably, the clamping structure includes a cylinder fixedly connected to the bottom surface of the ceramic heating sheet, one ends of a plurality of compression springs are fixedly connected to the outer wall of the cylinder, the plurality of compression springs are circumferentially equally spaced, and the other end of each compression spring is fixedly connected to a clamping block.

[0010] Preferably, a plurality of cylindrical grooves are formed on the end face of the heating roller body close to the pressure roller. The positions of the plurality of cylindrical grooves are arranged in one-to-one correspondence with the positions of the cylinders. A clamping groove is formed inside the cylindrical groove. A buffer spring is fixedly connected to the bottom surface of the cylindrical groove. The bottom surface of the cylinder is in contact with the top end of the buffer spring.

[0011] Preferably, the diameter of the clamping groove is larger than the diameter of the cylindrical groove. A plurality of clamping blocks are vertically and slidably clamped inside the clamping groove.

[0012] Preferably, a silver paste layer is wrapped outside the ceramic heating sheet.

[0013] Compared with the prior art, the present utility model has the following advantages and technical effects:

[0014] By arranging a placement groove inside the fixing assembly, installing a pressure roller and a heating roller in the placement groove, installing a ceramic heating sheet on the top surface of the heating roller facing the pressure roller, and realizing the detachable connection with the heating roller through the clamping structure on the bottom surface of the ceramic heating sheet, the present utility model effectively solves the problems of difficult replacement and increased maintenance cost caused by using an adhesive method to fix the ceramic heating sheet in the prior art. The present utility model improves the maintenance convenience and long-term use stability of the fixing assembly, reduces the inconvenience and cost burden caused by maintenance, and conforms to the technical development trend of improving the overall performance and user experience of the printer. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts:

[0016] Figure 1 is a usage state diagram of the present utility model;

[0017] Figure 2 is an exploded view of the heating roller, the ceramic heating sheet, and the clamping structure;

[0018] Figure 3 is Figure 2 a sectional view from another perspective;

[0019] Figure 4 is Figure 3 an enlarged view of A in

[0020] Figure 5 is Figure 3 an enlarged view of B in

[0021] Among them, 1. Fixing component; 2. Placing groove; 3. Pressure roller; 4. Heating roller; 5. Ceramic heating sheet; 6. Clamping structure; 401. Heating roller body; 402. First placement groove; 403. Second placement groove; 404. Temperature sensor; 405. Temperature protection switch; 406. Cylindrical groove; 407. Clamping groove; 408. Buffer spring; 601. Cylinder; 602. Compression spring; 603. Clamping block. Detailed implementation mode

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0023] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation modes.

[0024] Referring to Figures 1 to 5 , the present invention discloses a fixing component with a ceramic heating sheet that is convenient for disassembly and assembly, including: a fixing component 1, a placing groove 2 is opened in the fixing component 1, a pressure roller 3 and a heating roller 4 are sequentially arranged inside the placing groove 2 from top to bottom, a ceramic heating sheet 5 is arranged on the top surface of the heating roller 4 facing the pressure roller 3, and a plurality of clamping structures 6 are fixedly connected to the bottom surface of the ceramic heating sheet 5 at equal intervals. The ceramic heating sheet 5 is detachably connected to the heating roller 4 through the clamping structure 6.

[0025] By arranging a placing groove 2 inside the fixing component 1, installing a pressure roller 3 and a heating roller 4 in the placing groove 2, installing a ceramic heating sheet 5 on the top surface of the heating roller 4 facing the pressure roller 3, and realizing the detachable connection with the heating roller 4 through the clamping structure 6 on the bottom surface of the ceramic heating sheet 5, the present invention effectively solves the problems of difficult replacement and increased maintenance costs caused by using an adhesive method to fix the ceramic heating sheet in the prior art. The present invention improves the maintenance convenience and long-term use stability of the fixing component, reduces the inconvenience and cost burden caused by maintenance, and conforms to the technical development trend of improving the overall performance of the printer and the user experience.

[0026] As a further optimized solution, the heating roller 4 includes a heating roller body 401, a second placement groove 403 is opened on one side of the end face of the heating roller body 401 close to the pressure roller 3, a temperature protection switch 405 is fixedly connected inside the second placement groove 403, and the temperature protection switch 405 is electrically connected to an external controller.

[0027] Integrated with a temperature protection switch 405 to enhance the safety of the device, and realizes automatic temperature control by being electrically connected to an external controller. Inside the temperature protection switch 405, there is a bimetal sheet or a similar mechanism. When the temperature is too high, this mechanism will deform, thus disconnecting the circuit to play a protective role. This method is a direct electromechanical reaction without the participation of an additional electronic controller for judgment.

[0028] In a further optimized solution, several first placement grooves 402 are provided on one end face side of the heating roller body 401 close to the pressure roller 3. The several first placement grooves 402 are evenly and equally spaced along the axial direction of the heating roller body 401. A temperature sensor 404 is fixedly connected to the inner side of the first placement groove 402, and the temperature sensor 404 is electrically connected to an external controller.

[0029] The evenly distributed temperature sensors 404 improve the accuracy of temperature detection and promote the refinement of heat management. The temperature sensors 404 are connected to a circuit board or a controller through wires, and the temperature protection switch 405 is also connected to the circuit through wires. The temperature sensors 404 monitor the temperature changes of the environment or the device and convert the temperature into an electrical signal (such as a change in voltage or resistance value). This electrical signal is directly connected to the input end of the temperature protection switch 405. The controller can first process the signal, such as amplification, filtering, or A / D conversion, for more precise control. When the temperature reaches the preset safety threshold, the signal of the temperature sensor 404 will directly act on the temperature protection switch 405.

[0030] In a further optimized solution, the clamping structure 6 includes a cylinder 601 fixedly connected to the bottom surface of the ceramic heating sheet 5. One end of several compression springs 602 is fixedly connected to the outer wall of the cylinder 601. The several compression springs 602 are circumferentially equally spaced, and the other end of each compression spring 602 is fixedly connected to a clamping block 603.

[0031] The elastic clamping structure 6 ensures the stable and flexible installation of the ceramic heating sheet 5 and improves the service life.

[0032] In a further optimized solution, several cylindrical grooves 406 are provided on the end face of the heating roller body 401 close to the pressure roller 3. The positions of the several cylindrical grooves 406 are arranged in one-to-one correspondence with the positions of the cylinders 601. A clamping groove 407 is provided on the inner side of the cylindrical groove 406. A buffer spring 408 is fixedly connected to the bottom surface of the cylindrical groove 406, and the bottom surface of the cylinder 601 is in contact with the top end of the buffer spring 408.

[0033] The setting of the buffer spring 408 enables the ceramic heating sheet 5 to have a buffering function, enhancing the stability and durability of the system.

[0034] For a further optimized solution, the diameter of the clamping groove 407 is larger than that of the cylindrical groove 406, and a plurality of clamping blocks 603 are vertically and slidably clamped inside the clamping groove 407. The design of the clamping groove 407 facilitates the sliding of the clamping blocks 603, improves the assembly convenience, and at the same time ensures good thermal expansion adaptability.

[0035] For a further optimized solution, the outer side of the ceramic heating sheet 5 is wrapped with a silver paste layer. This can make the heat distribution more uniform, improve the heating efficiency, and enhance the overall performance.

[0036] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0037] The embodiments described above are only for describing the preferred mode of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solution of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A fixing assembly with a ceramic heating sheet that is easy to disassemble and assemble, characterized in that, Including: A fixing assembly (1), a placement groove (2) is formed inside the fixing assembly (1), a pressure roller (3) and a heating roller (4) are sequentially arranged inside the placement groove (2) from top to bottom, a ceramic heating sheet (5) is arranged on the top surface of one side of the heating roller (4) facing the pressure roller (3), a plurality of uniformly and equally spaced clamping structures (6) are fixedly connected to the bottom surface of the ceramic heating sheet (5), and the ceramic heating sheet (5) is detachably connected to the heating roller (4) through the clamping structures (6).

2. The fixing assembly with a ceramic heating sheet that is easy to disassemble and assemble according to claim 1, wherein: The heating roller (4) includes a heating roller body (401), a second placement groove (403) is formed on one side of the end face of the heating roller body (401) close to the pressure roller (3), a temperature protection switch (405) is fixedly connected inside the second placement groove (403), and the temperature protection switch (405) is electrically connected to an external controller.

3. The fixing assembly with a ceramic heating sheet that is easy to disassemble and assemble according to claim 2, wherein: A plurality of first placement grooves (402) are formed on one side of the end face of the heating roller body (401) close to the pressure roller (3), the plurality of first placement grooves (402) are uniformly and equally spaced along the axial direction of the heating roller body (401), a temperature sensor (404) is fixedly connected inside the first placement groove (402), and the temperature sensor (404) is electrically connected to the external controller.

4. The fixing component for a ceramic heating sheet that is convenient for disassembly and assembly according to claim 2, characterized in that: The clamping structure (6) includes a cylinder (601) fixedly connected to the bottom surface of the ceramic heating sheet (5), one ends of a plurality of compression springs (602) are fixedly connected to the outer wall of the cylinder (601), the plurality of compression springs (602) are circumferentially equally spaced, and the other end of each compression spring (602) is fixedly connected to a clamping block (603).

5. The fixing assembly with a ceramic heating sheet that is easy to disassemble and assemble according to claim 4, characterized in that: A plurality of cylinder grooves (406) are formed on the end face of the heating roller body (401) close to the pressure roller (3), the positions of the plurality of cylinder grooves (406) are arranged in one-to-one correspondence with the positions of the cylinders (601), a clamping groove (407) is formed inside the cylinder groove (406), a buffer spring (408) is fixedly connected to the bottom surface of the cylinder groove (406), and the bottom surface of the cylinder (601) is in contact with the top end of the buffer spring (408).

6. The fixing assembly with a ceramic heating sheet that is easy to disassemble and assemble according to claim 5, characterized in that: The diameter of the clamping groove (407) is larger than the diameter of the cylinder groove (406), and the plurality of clamping blocks (603) are vertically and slidably clamped inside the clamping groove (407).

7. The fixing assembly with a ceramic heating sheet that is easy to disassemble and assemble according to claim 1, characterized in that: The outer side of the ceramic heating sheet (5) is wrapped with a silver paste layer.

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