Thermal printer with vertically-mounted mainboard

Abstract

The utility model provides a thermal printer with a vertically-installed mainboard, which comprises a shell, a base, a cover body, a main control circuit board, a rubber roller and a thermosensitive sheet, the main control circuit board is arranged along the vertical direction and is fixedly arranged on the base, a side insertion key is welded at the upper end of the main control circuit board, and a button of the side insertion key extends along the vertical direction; the shell is arranged on the outer side of the base in a sleeving mode, the paper bin is located in the receding groove, the main control circuit board is located in the device assembling bin, the shell is provided with a key panel at the top of the device assembling bin, and the button is located on the inner side of the key panel and connected with the key panel; the thermosensitive piece and the rubber roller are opposite to each other and form a paper feeding channel, and the paper feeding channel is communicated between the paper outlet and the paper bin. The main control circuit board is vertically arranged, the side insertion key is welded at the upper end of the main control circuit board, and the button of the side insertion key extends along the vertical direction and is matched with the key panel, so that the wiring is saved, and the assembly efficiency is also improved.

Description

Technical Field

[0001] The utility model relates to the field of thermal printers, in particular to a thermal printer with a vertically mounted mainboard. Background Art

[0002] With the popularization of thermal printers, they are used in bank ATMs, supermarket checkout counters, e-commerce delivery offices, catering shops or kitchens, etc. As the application environment becomes increasingly harsh, thermal printers need to be equipped with waterproof and oil-proof functions to improve their adaptability and market competitiveness.

[0003] In existing designs, most main control circuit boards are arranged horizontally, and various components in the printer are basically connected by data cables, which is not only not conducive to reducing costs, but also affects assembly efficiency and stability. Utility Model Content

[0004] The utility model aims to provide a thermal printer with a vertically mounted mainboard.

[0005] In order to achieve the purpose of the utility model, the utility model provides a thermal printer with a vertically mounted mainboard, comprising a shell, a base, a cover body, a main control circuit board, a rubber roller and a thermal sheet, the rubber roller being rotatably arranged on the cover body, the shell being provided with a paper bin and a device assembly bin, the paper bin opening upward, the device assembly bin opening downward, the cover body being hinged to the shell and covering the paper bin, and an upward paper outlet being formed between the cover body and the shell; the base being provided with a support block, the base being provided with an avoidance groove and an installation groove on opposite sides of the support block, respectively, the thermal sheet being arranged on the support block, the main control circuit board being arranged in a vertical direction and being fixed in the installation groove, a side-insertion button being welded on the upper end of the main control circuit board, and the button of the side-insertion button extending in a vertical direction; the shell being sleeved on the outer side of the base, the paper bin being located in the avoidance groove, the main control circuit board being located in the device assembly bin, the shell being provided with a button panel on the top of the device assembly bin, the button being located on the inner side of the button panel and being connected to the button panel; the thermal sheet and the rubber roller are opposite to each other and form a paper feeding channel, and the paper feeding channel is connected between the paper outlet and the paper bin.

[0006] A further solution is that a supporting block is provided at the lower end of the installation slot, side blocks are provided on both sides of the installation slot, a fixing block is provided on the back side of the installation slot, the fixing block is provided with a fixing hole, the main control circuit board is adjacent to the supporting block and the side block respectively, a first positioning hole is provided through the main control circuit board, and a connecting screw passes through the first positioning hole and is fixedly connected to the fixing hole.

[0007] A further solution is that a positioning column is provided on one side of the fixing hole of the fixing block, a second positioning hole is penetrated by the main control circuit board, and the positioning column is clearance-matched with the second positioning hole.

[0008] A further solution is that one of the side blocks is provided with an assembly groove, a power button is welded on the main control circuit board, a window is provided in the housing at a position corresponding to the assembly groove, and the power button is located in the assembly groove and at the window.

[0009] A further solution is that the thermal printer includes a movement base, the thermal sheet is arranged on the movement base, and the movement base is arranged on the support block.

[0010] A further solution is that an indicator light is welded on the upper end of the main control circuit board, and a light-transmitting portion is provided on the key panel at a position corresponding to the indicator light.

[0011] The beneficial effect of the utility model is that the main control circuit board is arranged vertically and a side insert button is welded on the upper end of the main control circuit board. Since the button of the side insert button extends in the vertical direction and cooperates with the button panel, wiring is saved and assembly efficiency is improved. At the same time, the positioning of the bearing block, the side stop block and the fixed block is utilized to improve the assembly stability of the main control circuit board. The power button is directly welded on the main board and cooperates with the assembly of the window, thereby facilitating the assembly of the power button. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural diagram of an embodiment of a thermal printer of the utility model.

[0013] Figure 2 It is a structural diagram of the thermal printer embodiment of the utility model with the cover body opened.

[0014] Figure 3 It is a structural diagram of a base and a main control circuit board of an embodiment of a thermal printer of the utility model.

[0015] Figure 4 It is a structural diagram of the base of the thermal printer embodiment of the utility model.

[0016] Figure 5 It is a cross-sectional view of an embodiment of a thermal printer of the utility model.

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments. DETAILED DESCRIPTION

[0018] Reference Figures 1 to 5The thermal printer includes a shell 12, a base 2, a cover body 11, a main control circuit board 25, a rubber roller 111, a movement seat 24 and a thermal film 241. The rubber roller 111 is rotatably arranged on the cover body 11. The shell 12 is provided with a paper bin 124 and a device assembly bin 125. The paper bin 124 opens upward, and the device assembly bin 125 opens downward. The cover body 11 is hinged to the shell 12 through a hinged arm and covers the paper bin 124. An upward paper outlet 112 is formed between the cover body 11 and the shell 12. The paper outlet 112 is located at the top and is arranged to open upward.

[0019] The base 2 is provided with a support block 22, and the base 2 is respectively provided with an avoidance groove 21 and a mounting groove 23 on two opposite sides of the support block 22. The thermal film 241 is arranged on the movement seat 24, and the movement seat 24 is arranged on the support block 22. When the cover body 11 is covered, the thermal film 241 and the rubber roller 111 are opposite to each other and form a paper feeding channel, and the paper feeding channel is connected between the paper outlet 112 and the paper bin 124. After the printing paper is imaged on the thermal film 241, the printing paper is output through the paper outlet 112.

[0020] A bearing block 231 is provided at the lower end of the mounting groove 23, and side blocks 232 are respectively provided on both sides of the mounting groove 23. A fixing block 234 is provided in the middle of the back side of the mounting groove 23, and the fixing block 234 is provided with a fixing hole 235. The fixing block 234 is provided with a positioning column 236 on one side of the fixing hole 235. The main control circuit board 25 is arranged in the vertical direction and installed and fixed in the mounting groove 23, and the edges of the main control circuit board 25 are respectively adjacent to the bearing block 231 and the side block 232. The main control circuit board 25 is penetrated by a first positioning hole 254 and a second positioning hole 255 in the middle, and a connecting screw (not shown) passes through the first positioning hole 254 and is fixedly connected to the fixing hole 235, and the positioning column 236 is clearance-matched with the second positioning hole 255.

[0021] A plurality of side insert buttons 251 are welded to the upper end of the main control circuit board 25. The side insert buttons 251 include a bracket and a trigger module. The trigger module is fixedly connected to the bracket. A button is provided on the trigger module. The button extends in the vertical direction. The support feet of the bracket and the signal pins of the trigger module are welded to the main control circuit board 25. One of the side blocks 232 is provided with an assembly groove 233. A power button 253 is welded on the main control circuit board 25. The power button 253 is located in the assembly groove 233.

[0022] The housing 12 is mounted on the outside of the base 2, the paper bin 124 is located in the avoidance groove 21, the main control circuit board 25 is located in the device assembly bin 125, the housing 12 is provided with a key panel 121 at the top of the device assembly bin 125, the button is located on the inner side of the key panel 121 and is connected to the key position 122 of the key panel 121, and then the button can be driven to trigger after pressing the key position 122 to realize the key function, a plurality of indicator lights 252 are welded on the upper end of the main control circuit board 25, the key panel 121 is provided with a light-transmitting portion 123 at the position corresponding to the indicator light, the indicator light 252 faces the light-transmitting portion 123, and the current status of the printer can be known by the indicator light. In addition, the housing 12 is connected with a window 126 at the position corresponding to the assembly groove 233, and the power button 253 is located in the assembly groove 233 and at the window 126 for user operation.

[0023] As can be seen from the above, by arranging the main control circuit board vertically and welding a side insert button on the upper end of the main control circuit board, since the button of the side insert button extends in the vertical direction and cooperates with the button panel, wiring is saved and assembly efficiency is improved. At the same time, the positioning of the bearing block, side block and fixed block is utilized to improve the assembly stability of the main control circuit board, and the power button is directly welded on the main board and cooperated with the assembly of the window, thereby facilitating the assembly of the power button.

Claims

1. A thermal printer with a vertically mounted motherboard, comprising a housing, a base, a cover, a main control circuit board, a rubber roller and a thermal sheet, wherein the rubber roller is rotatably arranged on the cover, the housing is provided with a paper bin and a device assembly bin, the paper bin opens upward, the device assembly bin opens downward, the cover is hinged to the housing and covers the paper bin, and an upward paper outlet is formed between the cover and the housing; Features: The base is provided with a support block, and the base is provided with an avoidance groove and a mounting groove on two opposite sides of the support block, respectively. The thermal sheet is arranged on the support block, and the main control circuit board is arranged in the vertical direction and fixed in the mounting groove. A side insert button is welded on the upper end of the main control circuit board, and the button of the side insert button extends in the vertical direction; The housing is sleeved on the outside of the base, the paper bin is located in the avoidance groove, the main control circuit board is located in the device assembly bin, the housing is provided with a key panel on the top of the device assembly bin, and the button is located on the inner side of the key panel and connected to the key panel; The thermal sheet and the rubber roller are opposite to each other and form a paper feeding passage, and the paper feeding passage is connected between the paper outlet and the paper bin.

2. The thermal printer according to claim 1, characterized in that: A bearing block is arranged at the lower end of the mounting groove, side blocks are arranged on both sides of the mounting groove respectively, a fixing block is arranged on the back side of the mounting groove, and a fixing hole is arranged on the fixing block. The main control circuit board is adjacent to the bearing block and the side block respectively, and a first positioning hole is arranged through the main control circuit board, and a connecting screw passes through the first positioning hole and is fixedly connected to the fixing hole.

3. The thermal printer according to claim 2, characterized in that: The fixing block is provided with a positioning column on one side of the fixing hole, the main control circuit board is penetrated with a second positioning hole, and the positioning column is gap-matched with the second positioning hole.

4. The thermal printer according to claim 2, characterized in that: One of the side blocks is provided with an assembly groove, a power button is welded on the main control circuit board, and a window is provided in the housing at a position corresponding to the assembly groove. The power button is located in the assembly groove and at the window.

5. The thermal printer according to claim 1, characterized in that: The thermal printer comprises a core seat, the thermal sheet is arranged on the core seat, and the core seat is arranged on the supporting block.

6. The thermal printer according to any one of claims 1 to 5, characterized in that: An indicator light is welded on the upper end of the main control circuit board, and a light-transmitting portion is arranged on the key panel at a position corresponding to the indicator light.

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