Printing unit and printer

Abstract

The utility model relates to the technical field of printing, in particular to a printing unit and a printer. The printing unit provided by the utility model comprises a mounting seat, a machine core and a control panel, the machine core and the control panel are respectively positioned on two opposite sides of the mounting seat, the machine core and the control panel are detachably mounted on the mounting seat, the machine core comprises a printing head and a connecting wire, and the connecting wire is connected between the printing head and the control panel. According to the printing unit provided by the utility model, the machine core and the control panel of the printing unit are fixedly connected through the mounting seat, so that the modularized mounting and maintenance of the printing unit can be conveniently realized.

Description

Technical Field

[0001] The utility model relates to the technical field of printing, in particular to a printing unit and a printer. Background Art

[0002] The existing printing unit includes a movement and a control board, which are connected by a connecting line. When the printing unit is installed on a sheet media processing device such as a printer, the movement and the control board need to be fixed to the sheet media processing device respectively. When maintaining the printing unit, the movement and the control board need to be removed from the sheet media processing device respectively, which is not conducive to the modular installation and maintenance of the printing unit. Utility Model Content

[0003] The utility model aims to provide a printing unit and a printer, so as to realize modular installation and maintenance of the printing unit.

[0004] To achieve this purpose, the utility model adopts the following technical solutions:

[0005] On the one hand, the utility model provides a printing unit, which includes a mounting base, a movement and a control board, wherein the movement and the control board are respectively located on opposite sides of the mounting base, and the movement and the control board can be detachably installed on the mounting base, and the movement includes a print head and a connecting line, and the connecting line is connected between the print head and the control board.

[0006] As a preferred technical solution for the printing unit, the mounting base is provided with a wiring groove, a first socket is provided on the print head, a second socket is provided on the control board, the first socket and the second socket are both adjacent to the wiring groove, the first end of the connecting wire is pluggably connected to the first socket, and the second end of the connecting wire passes through the wiring groove and is pluggably connected to the second socket.

[0007] As a preferred technical solution of the printing unit, the mounting base is provided with a first plug-in portion, and the control board is provided with a second plug-in portion, and the first plug-in portion and the second plug-in portion are plugged together along a first direction to limit the position of the control board relative to the mounting base along a second direction and a third direction, wherein the first direction, the second direction and the third direction are perpendicular to each other; the mounting base is provided with a first clamping portion, and the control board is provided with a second clamping portion, and the first clamping portion and the second clamping portion are clamped together to limit the position of the control board relative to the mounting base along the first direction, and / or the printing unit further includes a first fastener, which passes through one of the control board and the mounting base and is connected to the other of the two to limit the position of the control board relative to the mounting base along the first direction.

[0008] As a preferred technical solution of the printing unit, the printing unit also includes a first fastener and a grounding wire, the first fastener passes through one of the control board and the mounting base and is connected to the other of the two, the first end of the grounding wire is connected to the ground wire of the control board through the first fastener, and the second end of the grounding wire is connected to the heat sink of the print head.

[0009] As an optimal technical solution for the printing unit, the movement also includes a support frame, and the print head is installed on the support frame; the mounting seat is provided with a third plug-in portion, and the support frame is provided with a fourth plug-in portion, and the fourth plug-in portion is plug-matched with the third plug-in portion along a first direction to limit the position of the movement relative to the mounting seat along a second direction and a third direction, wherein the first direction, the second direction and the third direction are perpendicular to each other; the mounting seat is provided with a third clamping portion, and the support frame is provided with a fourth clamping portion, and the fourth clamping portion is clamped and matched with the third clamping portion to limit the position of the movement relative to the mounting seat along the first direction, and / or the printing unit also includes a second fastener, which passes through one of the support frame and the mounting seat and is connected to the other of the two to limit the position of the movement relative to the mounting seat along the first direction.

[0010] On the other hand, the utility model provides a printer, which includes a casing and the printing unit as described above, wherein the printing unit is installed in the casing, and a mounting base of the printing unit is detachably connected to the casing.

[0011] As a preferred technical solution for the printer, the casing includes a main shell and a partition, the partition is arranged in the main shell, the partition divides the internal space of the main shell into a first mounting cavity and a second mounting cavity, the mounting seat is detachably installed in the first mounting cavity, and the second mounting cavity is used to install a paper roll; an opening connecting the first mounting cavity and the second mounting cavity is provided on the partition, and the print head extends into the second mounting cavity through the opening.

[0012] As a preferred technical solution of the printer, a first accommodating portion and a second accommodating portion are provided in the casing, the first accommodating portion and the second accommodating portion are staggered or spaced apart, and the first accommodating portion is used to accommodate a first counterweight block, and the second accommodating portion is used to accommodate a second counterweight block.

[0013] As an optimal technical solution for the printer, the printer also includes a light-emitting component, a light-guiding component and a button, the casing is provided with a through hole, and the light-emitting component is arranged on the control panel; the light-guiding component is installed in the casing, and the light-guiding component includes a light-guiding bracket and a light-guiding sleeve connected to the light-guiding bracket, the light-guiding bracket is detachably connected to the control panel, the light-guiding sleeve is plugged into the through hole, the button is plugged into the light-guiding sleeve, the light-guiding bracket is provided with a light-entering surface, and the light-entering surface is opposite to the light-emitting component; the light-guiding sleeve is provided with a light-emitting surface, and the light emitted by the light-emitting component can be transmitted to the light-emitting surface through the light-entering surface.

[0014] As a preferred technical solution of the printer, the light guide bracket is further provided with a limiting groove, the extension direction of the limiting groove is the same as the extension direction of the light guide sleeve, and the control board is plugged into and matched with the limiting groove.

[0015] Beneficial effects of the utility model:

[0016] The utility model provides a printing unit, which includes a mounting seat, a movement and a control board, wherein the movement and the control board are respectively located on opposite sides of the mounting seat, and both the movement and the control board are detachably mounted on the mounting seat, and the movement includes a print head and a connecting line, and the connecting line is connected between the print head and the control board. The printing unit provided by the utility model enables the movement and the control board of the printing unit to be fixedly connected through the mounting seat, which facilitates the modular installation and maintenance of the printing unit.

[0017] The utility model also provides a printer, which includes a housing and the above-mentioned printing unit, wherein the printing unit is installed in the housing, and the mounting seat of the printing unit is detachably connected to the housing. The printer provided by the utility model, by applying the above-mentioned printing unit, facilitates modular installation and maintenance of the printing unit in the housing of the printer. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The structure of the printing unit provided by the embodiment of the utility model is decomposed Figure 1 ;

[0019] Figure 2 The structure of the printing unit provided by the embodiment of the utility model is decomposed Figure 2 ;

[0020] Figure 3 This is a partial structural cross-sectional view of a printer provided by an embodiment of the utility model Figure 1 ;

[0021] Figure 4 This is a partial structural cross-sectional view of a printer provided by an embodiment of the utility model Figure 2 ;

[0022] Figure 5 It is a partial structural exploded view of a printer provided by an embodiment of the utility model;

[0023] Figure 6 It is a partial structural cross-sectional view of a casing of a printer provided by an embodiment of the utility model;

[0024] Figure 7 This is a partial structural diagram of a printer provided by an embodiment of the utility model. Figure 1 ;

[0025] Figure 8 This is a partial structural diagram of a printer provided by an embodiment of the utility model. Figure 2 ;

[0026] Fig. 9 This is a partial structural cross-sectional view of a printer provided by an embodiment of the utility model Figure 3 .

[0027] In the figure:

[0028] 100-printing unit; 200-button; 300-light-emitting element; 400-housing; 500-light-guiding element;

[0029] 410-main housing; 411-first mounting cavity; 412-second mounting cavity; 413-fixing part; 414-opening; 415-paper roll inlet and outlet; 420-partition plate; 421-opening; 430-first accommodating part; 431-first blocking part; 432-second blocking part; 433-third blocking part; 440-second accommodating part; 441-fourth blocking part; 442-fifth blocking part; 443-sixth blocking part; 450-first counterweight block; 460-second counterweight block; 470-first cover body; 480-second cover body;

[0030] 510-light guide bracket; 511-light incident surface; 512-limiting groove; 513-reflecting surface; 520-light guide sleeve; 521-light exit surface;

[0031] 1-mounting seat; 11-wiring groove; 12-first plug-in part; 13-first clamping part; 14-third plug-in part; 15-third clamping part; 16-third through hole; 17-first fixing hole; 18-second fixing hole; 2-movement; 21-print head; 211-first socket; 22-connecting line; 23-support frame; 231-fourth plug-in part; 232-second through hole; 3-control board; 31-second socket; 32-first through hole; 33-second clamping part; 4-first fastener; 5-second fastener; 6-third fastener. DETAILED DESCRIPTION

[0032] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved more clearly, the technical solutions of the present invention are further explained below with reference to the accompanying drawings and through specific implementation methods.

[0033] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0035] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0036] Figure 1 The structure of the printing unit 100 provided in the embodiment of the utility model is decomposed into Figure 1 , Figure 2 The structure of the printing unit 100 provided in the embodiment of the utility model is decomposed into Figure 2 .like Figure 1 and Figure 2As shown, the present embodiment provides a printing unit 100, which includes a mounting seat 1, a movement 2 and a control board 3, wherein the movement 2 and the control board 3 are respectively located on opposite sides of the mounting seat 1, and both the movement 2 and the control board 3 can be detachably mounted on the mounting seat 1, and the movement 2 includes a print head 21 and a connecting line 22, and the connecting line 22 is connected between the print head 21 and the control board 3. The printing unit 100 provided in the present embodiment facilitates modular installation and maintenance of the printing unit 100 by fixing the movement 2 and the control board 3 of the printing unit 100 through the mounting seat 1.

[0037] Optionally, in this embodiment, if Figure 1 and Figure 2 As shown, the mounting base 1 is provided with a wiring groove 11, a first socket 211 is provided on the print head 21, and a second socket 31 is provided on the control board 3. The first socket 211 and the second socket 31 are both adjacent to the wiring groove 11. The first end of the connecting wire 22 is pluggably connected to the first socket 211, and the second end of the connecting wire 22 passes through the wiring groove 11 and is pluggably connected to the second socket 31. The above arrangement effectively shortens the length of the connecting wire 22, saves costs and avoids messy wiring. Preferably, the first socket 211, the wiring groove 11 and the second socket 31 are arranged in sequence, so as to avoid bending of the connecting wire 22 and ensure the service life of the connecting wire 22.

[0038] In this embodiment, if Figure 1 and Figure 2As shown, the mounting seat 1 is provided with a first plug-in portion 12, and the control board 3 is provided with a second plug-in portion. The first plug-in portion 12 and the second plug-in portion are plugged and matched along the first direction (up and down direction in the figure) to limit the position of the control board 3 relative to the mounting seat 1 along the second direction (front and back direction in the figure) and the third direction (left and right direction in the figure), wherein the first direction, the second direction and the third direction are perpendicular to each other, the mounting seat 1 is provided with a first clamping portion 13, and the control board 3 is provided with a second clamping portion 33. The first clamping portion 13 and the second clamping portion 33 are clamped and matched to limit the position of the control board 3 relative to the mounting seat 1 along the first direction, and the printing unit 100 also includes a first fastener 4, the first fastener 4 passes through one of the control board 3 and the mounting seat 1 and is connected to the other of the two to limit the position of the control board 3 relative to the mounting seat 1 along the first direction. The above arrangement improves the ease of operation of installing the control board 3 on the mounting seat 1 or removing the control board 3 from the mounting seat 1, and also improves the stability and reliability of installing the control board 3 on the mounting seat 1. Optionally, one of the first plug-in portion 12 and the second plug-in portion is a plug-in board, and the other is a first slot; one of the first clamping portion 13 and the second clamping portion 33 is a first hook, and the other is a first slot. Specifically, in this embodiment, the first plug-in portion 12 is a first slot, the second plug-in portion is a plug-in board, the first clamping portion 13 is a first hook, and the second clamping portion 33 is a first slot. Preferably, in this embodiment, the control board 3 is provided with a first through hole 32, the mounting seat 1 is provided with a first fixing hole 17, and the first fastener 4 passes through the first through hole 32 and is connected to the first fixing hole 17.

[0039] Optionally, in other embodiments, the position of the control board 3 relative to the mounting seat 1 along the first direction may be limited only by the engagement between the first engaging portion 13 and the second engaging portion 33. Optionally, in other embodiments, the position of the control board 3 relative to the mounting seat 1 along the first direction may be limited only by the first fastener 4.

[0040] In this embodiment, the printing unit 100 further includes a grounding wire (not shown in the figure), a first end of the grounding wire is connected to the grounding wire of the control board 3 through the first fastener 4, and a second end of the grounding wire is connected to the heat sink of the print head 21. With the above arrangement, the first fastener 4 is not only used to fix the position of the control board 3 relative to the mounting base 1, but also used to fix the grounding wire, so that the static electricity generated by the print head 21 can be discharged through the grounding wire, thereby reducing the number of fasteners of the printing unit 100 and reducing the cost.

[0041] In this embodiment, if Figure 1 and Figure 2As shown, the movement 2 also includes a support frame 23, the print head 21 is installed on the support frame 23, the mounting seat 1 is provided with a third plug-in portion 14, the support frame 23 is provided with a fourth plug-in portion 231, the fourth plug-in portion 231 is plugged and matched with the third plug-in portion 14 along the first direction to limit the position of the movement 2 relative to the mounting seat 1 along the second direction and the third direction, wherein the first direction, the second direction and the third direction are perpendicular to each other, the mounting seat 1 is provided with a third clamping portion 15, the support frame 23 is provided with a fourth clamping portion (not shown in the figure), the fourth clamping portion is clamped and matched with the third clamping portion 15 to limit the position of the movement 2 relative to the mounting seat 1 along the first direction, and the printing unit 100 also includes a second fastener 5, the second fastener 5 passes through one of the support frame 23 and the mounting seat 1 and is connected to the other of the two to limit the position of the movement 2 relative to the mounting seat 1 along the first direction. The above arrangement improves the operability of installing the movement 2 on the mounting seat 1 or removing the movement 2 from the mounting seat 1, and also improves the stability and reliability of installing the movement 2 on the mounting seat 1. Optionally, one of the third plug-in portion 14 and the fourth plug-in portion 231 is a second slot, the other of the two is a plug column, and one of the third clamping portion 15 and the fourth clamping portion is a second hook, and the other of the two is a second slot. Specifically, in the present embodiment, the third plug-in portion 14 is a plug column, the fourth plug-in portion 231 is a second slot, the third clamping portion 15 is a second hook, and the fourth clamping portion is a second slot. Preferably, in the present embodiment, the support frame 23 is provided with a second through hole 232, the mounting seat 1 is provided with a second fixing hole 18, and the second fastener 5 passes through the second through hole 232 and is connected to the second fixing hole 18. Preferably, the movement 2 and the control board 3 are respectively located on both sides of the mounting base 1 along the first direction, and the plugging direction of the plug post and the second slot is opposite to the plugging direction of the plug board and the first slot.

[0042] Alternatively, in other embodiments, the position of the movement 2 relative to the mounting seat 1 along the first direction may be limited only by the fourth clamping portion and the third clamping portion 15. Alternatively, in other embodiments, the position of the movement 2 relative to the mounting seat 1 along the first direction may be limited only by the second fastener 5.

[0043] Figure 3 This is a partial structural cross-sectional view of a printer provided by an embodiment of the utility model Figure 1 , Figure 4 This is a partial structural cross-sectional view of a printer provided by an embodiment of the utility model Figure 2 , Figure 5 This is a partial structural exploded view of a printer provided by an embodiment of the utility model. Figure 6 4 is a partial structural cross-sectional view of a printer housing 400 provided in an embodiment of the utility model. Figure 7 This is a partial structural diagram of a printer provided by an embodiment of the utility model. Figure 1 , Figure 8 This is a partial structural diagram of a printer provided by an embodiment of the utility model. Figure 2 , Fig. 9 This is a partial structural cross-sectional view of a printer provided by an embodiment of the utility model Figure 3 .like Figure 3 to Figure 9 As shown, this embodiment further provides a printer, which includes a housing 400 and the above-mentioned printing unit 100. The printing unit 100 is installed in the housing 400, and the mounting base 1 of the printing unit 100 is detachably connected to the housing 400. The printer provided in this embodiment, by applying the above-mentioned printing unit 100, facilitates the modular installation and maintenance of the printing unit 100 in the housing 400 of the printer.

[0044] Reference Figure 1 and Figure 2 As shown, the printer provided in this embodiment further includes a third fastener 6, and the third fastener 6 passes through one of the mounting base 1 and the housing 400 to be connected to the other of the two. Optionally, in this embodiment, the mounting base 1 is provided with a third through hole 16, the housing 400 is provided with a third fixing hole, and the third fastener 6 passes through the third through hole 16 to be connected to the third fixing hole.

[0045] In this embodiment, if Figure 3 As shown, the housing 400 includes a main housing 410 and a partition 420, the partition 420 is arranged in the main housing 410, and the partition 420 divides the internal space of the main housing 410 into a first installation cavity 411 and a second installation cavity 412, the mounting seat 1 is detachably mounted in the first installation cavity 411, the second installation cavity 412 is used to install a paper roll, and the partition 420 is provided with an opening 421 connecting the first installation cavity 411 and the second installation cavity 412, and the print head 21 extends into the second installation cavity 412 through the opening 421. The above arrangement separates the accommodation space of the paper roll from the accommodation space of the control board 3, so as to prevent the user from contacting the control board 3 when replacing the paper roll.

[0046] Specifically, Figure 3 and Figure 4As shown, the first installation cavity 411 has an opening 414 for the printing unit 100 to enter and exit the first installation cavity 411, and the second installation cavity 412 has a paper roll inlet and outlet 415 for the paper roll to enter and exit the second installation cavity 412. The housing 400 also includes a first cover 470 and a second cover 480. The first cover 470 is detachably connected to the main housing 410, and the first cover 470 is used to close or open the opening 414. The second cover 480 is movably connected to the main housing 410, and the second cover 480 is used to close or open the paper roll inlet and outlet 415. The above arrangement facilitates the user to install and maintain the printing unit 100 through the opening 414, and also facilitates the user to replace the paper roll through the paper roll inlet and outlet 415. Preferably, the opening 414 is located at the bottom of the main housing 410, the paper roll inlet and outlet 415 is located at the top of the main housing 410, the print head 21 is located on the upper side of the mounting seat 1, and the control board 3 is located on the lower side of the mounting seat 1, and the control board 3 is vertically arranged. The above arrangement further improves the stability of installing the printing unit 100 in the housing 400. Preferably, the side wall of the first installation cavity 411 is provided with a fixing portion 413, and the fixing portion 413 is provided with a third fixing hole, so that the third fastener 6 connects the mounting base 1 to the fixing portion 413.

[0047] In this embodiment, if Figure 5 and Figure 6 As shown, the housing 400 is provided with a first receiving portion 430 and a second receiving portion 440, the first receiving portion 430 and the second receiving portion 440 are staggered or spaced, and the first receiving portion 430 is used to receive the first counterweight 450, and the second receiving portion 440 is used to receive the second counterweight 460. The above arrangement allows the user to remove the first counterweight 450 from the first receiving portion 430 without affecting the second counterweight 460 accommodating stability of the second receiving portion 440, and the user to remove the second counterweight 460 from the second receiving portion 440 without affecting the first counterweight 450 accommodating stability of the first receiving portion 430, so that the user can flexibly configure the number of counterweights according to demand, and at the same time meet the needs of different users, with strong adaptability. Preferably, the housing 400 is provided with a first receiving portion 430 and a second receiving portion 440 at both ends along the left and right directions. In addition, the first accommodating portion 430 has a first access opening, which is used to allow the first counterweight 450 to enter and exit the first accommodating portion 430, and the second accommodating portion 440 has a second access opening, which is used to allow the second counterweight 460 to enter and exit the second accommodating portion 440. When the first cover 470 opens the opening 414, the first access opening and the second access opening are both opposite to the opening 414. This arrangement makes it easy for the first counterweight 450 to enter and exit the first accommodating portion 430, and the second counterweight 460 to enter and exit the second accommodating portion 440 when the first cover 470 opens the opening 414.

[0048] Preferably, if Figure 6As shown, the first accommodating portion 430 includes a first blocking portion 431, a second blocking portion 432 and a third blocking portion 433, and the second accommodating portion 440 includes a fourth blocking portion 441, a fifth blocking portion 442 and a sixth blocking portion 443, wherein the first blocking portion 431, the fourth blocking portion 441, the second blocking portion 432 and the fifth blocking portion 442 are arranged in sequence along the front-to-back direction, the first blocking portion 431 and the second blocking portion 432 are used to jointly limit the position of the first counterweight block 450 along the front-to-back direction, the fourth blocking portion 441 and the fifth blocking portion 442 are used to jointly limit the position of the second counterweight block 460 along the front-to-back direction, the third blocking portion 433 and the fourth blocking portion 441 are arranged at intervals along the left-to-right direction, and are used to jointly limit the position of the first counterweight block 450 along the left-to-right direction, and the second blocking portion 432 and the sixth blocking portion 443 are arranged at intervals along the left-to-right direction, and are used to jointly limit the position of the second counterweight block 460 along the left-to-right direction. The above arrangement enables the first accommodation portion 430 and the second accommodation portion 440 to be staggered in the front-to-back direction and adjacent to each other in the left-to-right direction. In addition, the first accommodation portion 430 and the second accommodation portion 440 share the second blocking portion 432 and the fourth blocking portion 441, thereby improving the compactness of the layout of the first accommodation portion 430 and the second accommodation portion 440. Optionally, in other embodiments, the first accommodation portion 430 and the second accommodation portion 440 may also be staggered in the up-down direction, or the first accommodation portion 430 and the second accommodation portion 440 may also be spaced apart in the left-to-right direction or in the front-to-back direction.

[0049] In this embodiment, if Figure 7 to Figure 9As shown, the printer further includes a light emitting member 300, a light guide member 500 and a key 200, wherein the housing 400 is provided with a through hole, the light emitting member 300 is arranged on the control board 3, the light guide member 500 is installed in the housing 400, the light guide member 500 includes a light guide bracket 510 and a light guide sleeve 520 connected to the light guide bracket 510, the light guide bracket 510 is detachably connected to the control board 3, the light guide sleeve 520 is plugged into the through hole, the key 200 is plugged into the light guide sleeve 520, the light guide bracket 510 is provided with a light incident surface 511, the light incident surface 511 is opposite to the light emitting member 300, the light guide sleeve 520 is provided with a light emitting surface 521, and the light emitted by the light emitting member 300 can be transmitted to the light emitting surface 521 through the light incident surface 511. The above arrangement enables the light emitted by the light emitting member 300 to light up the key 200 through the transmission of the light guide member 500. In addition, the light guide 500 is detachably connected to the control board 3, which improves the convenience and stability of installing the light guide 500 on the control board 3, and improves the installation and maintenance efficiency of the light guide 500 and the button 200. Preferably, the light emitting surface 521 is annular, and when the light emitting element 300 emits light, an annular aperture can be formed around the button 200 through the light guide 500, making the position of the button 200 more eye-catching. Preferably, the light emitting element 300 is an LED lamp bead. Preferably, the light emitting element 300 is configured to emit light in a first direction, and the light guide bracket 510 also has a reflective surface 513 arranged at an angle with both the light incident surface 511 and the light emitting surface 521, and the reflective surface 513 is used to receive the light transmitted by the light emitting element 300 through the light incident surface 511 and emit it to the light emitting surface 521 along the second direction. The above arrangement enables the light emitted by the light emitting element 300 to be reflected to the light emitting surface 521 through the reflective surface 513, thereby improving the light emission intensity of the light emitting surface 521. Preferably, the transmission direction of the light emitted by the light emitting element 300 is perpendicular to the light incident surface 511 , thereby reducing the light intensity loss when the light is transmitted to the reflective surface 513 , and further improving the light output intensity of the light output surface 521 .

[0050] In this embodiment, if Figure 8 and Fig. 9 As shown, the light guide bracket 510 is further provided with a limiting groove 512, the extension direction of the limiting groove 512 is the same as the extension direction of the light guide sleeve 520, and the control board 3 is plugged into the limiting groove 512. The above arrangement realizes the same direction arrangement of the button 200 and the control board 3, reduces the limitation of the installation angle of the button 200 relative to the control board 3, reasonably utilizes the installation space in the housing 400, is conducive to realizing the compactness of the structure of the printer, and further improves the convenience and stability of installing the light guide 500 on the control board 3.

[0051] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A printing unit, characterized in that: The invention comprises a mounting seat (1), a movement (2) and a control board (3), wherein the movement (2) and the control board (3) are respectively located on opposite sides of the mounting seat (1), and both the movement (2) and the control board (3) are detachably mounted on the mounting seat (1), and the movement (2) comprises a print head (21) and a connecting line (22), and the connecting line (22) is connected between the print head (21) and the control board (3).

2. The printing unit according to claim 1, characterized in that: The mounting seat (1) is provided with a wiring groove (11), the print head (21) is provided with a first socket (211), the control board (3) is provided with a second socket (31), the first socket (211) and the second socket (31) are both adjacent to the wiring groove (11), the first end of the connecting wire (22) is pluggably connected to the first socket (211), and the second end of the connecting wire (22) passes through the wiring groove (11) and is pluggably connected to the second socket (31).

3. The printing unit according to claim 1, characterized in that: The mounting seat (1) is provided with a first plug-in portion (12), and the control panel (3) is provided with a second plug-in portion, and the first plug-in portion (12) and the second plug-in portion are plugged together along a first direction to limit the position of the control panel (3) relative to the mounting seat (1) along a second direction and a third direction, wherein the first direction, the second direction and the third direction are perpendicular to each other; The mounting seat (1) is provided with a first clamping portion (13), and the control board (3) is provided with a second clamping portion (33), the first clamping portion (13) and the second clamping portion (33) are clamped together to limit the position of the control board (3) relative to the mounting seat (1) along the first direction, and / or the printing unit further includes a first fastener (4), the first fastener (4) passes through one of the control board (3) and the mounting seat (1) and is connected to the other of the two to limit the position of the control board (3) relative to the mounting seat (1) along the first direction.

4. The printing unit according to claim 1, characterized in that: The printing unit further comprises a first fastener (4) and a grounding wire, wherein the first fastener (4) passes through one of the control board (3) and the mounting base (1) and is connected to the other of the two, a first end of the grounding wire is connected to the grounding wire of the control board (3) through the first fastener (4), and a second end of the grounding wire is connected to a heat sink of the print head (21).

5. The printing unit according to claim 1, characterized in that: The movement (2) further comprises a support frame (23), and the print head (21) is mounted on the support frame (23); The mounting seat (1) is provided with a third plug-in portion (14), and the support frame (23) is provided with a fourth plug-in portion (231), and the fourth plug-in portion (231) is plugged and matched with the third plug-in portion (14) along a first direction to limit the position of the movement (2) relative to the mounting seat (1) along a second direction and a third direction, wherein the first direction, the second direction and the third direction are perpendicular to each other; The mounting seat (1) is provided with a third clamping portion (15), and the support frame (23) is provided with a fourth clamping portion, and the fourth clamping portion is engaged with the third clamping portion (15) to limit the position of the movement (2) relative to the mounting seat (1) along the first direction, and / or the printing unit also includes a second fastener (5), the second fastener (5) passes through one of the support frame (23) and the mounting seat (1) and is connected to the other of the two to limit the position of the movement (2) relative to the mounting seat (1) along the first direction.

6. A printer, characterized in that: It comprises a casing (400) and a printing unit according to any one of claims 1 to 5, wherein the printing unit is installed in the casing (400), and a mounting base (1) of the printing unit is detachably connected to the casing (400).

7. The printer according to claim 6, characterized in that: The housing (400) comprises a main housing (410) and a partition (420), wherein the partition (420) is arranged in the main housing (410), and the partition (420) divides the internal space of the main housing (410) into a first installation cavity (411) and a second installation cavity (412), wherein the installation seat (1) is detachably installed in the first installation cavity (411), and the second installation cavity (412) is used for installing a paper roll; The partition plate (420) is provided with an opening (421) communicating the first installation cavity (411) and the second installation cavity (412); the print head (21) extends into the second installation cavity (412) through the opening (421).

8. The printer according to claim 6, characterized in that: A first accommodating portion (430) and a second accommodating portion (440) are provided in the housing (400); the first accommodating portion (430) and the second accommodating portion (440) are staggered or spaced apart; the first accommodating portion (430) is used to accommodate a first counterweight (450), and the second accommodating portion (440) is used to accommodate a second counterweight (460).

9. The printer according to claim 6, characterized in that: The printer further comprises a light emitting component (300), a light guide component (500) and a key (200); the housing (400) is provided with a through hole; and the light emitting component (300) is arranged on the control panel (3); The light guide member (500) is installed in the housing (400), the light guide member (500) comprises a light guide bracket (510) and a light guide sleeve (520) connected to the light guide bracket (510), the light guide bracket (510) is detachably connected to the control panel (3), the light guide sleeve (520) is plugged into the through hole, the button (200) is plugged into the light guide sleeve (520), the light guide bracket (510) is provided with a light incident surface (511), and the light incident surface (511) is opposite to the light emitting member (300); The light-guiding sleeve (520) is provided with a light-emitting surface (521), and the light emitted by the light-emitting element (300) can be transmitted to the light-emitting surface (521) via the light-incident surface (511).

10. The printer according to claim 9, characterized in that: The light guide bracket (510) is also provided with a limiting groove (512), the extension direction of the limiting groove (512) is the same as the extension direction of the light guide sleeve (520), and the control panel (3) is plugged into and matched with the limiting groove (512).

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