A printer

Abstract

The application discloses a printer, which comprises a metal machine core and a print head. The metal machine core has a first surface. The print head comprises a print head seat and a heating assembly. The heating assembly is protruded from the first surface of the print head seat and has a printing surface for supporting a printing consumable. The heating assembly is used for heating the printing consumable abutting against the printing surface. The print head seat is integrally arranged with the metal machine core, so that the heat generated by the heating assembly can be more efficiently conducted to the metal machine core, the residual heat of the print head is quickly released, and the phenomenon that the printing paper is locally blackened due to the heat retention in the heating area after the completion of the printing task is avoided. The application optimizes the heat management mechanism in the printing intermittent state, improves the printing clarity and the utilization rate of the consumable, enhances the stability of the thermal control of the print head, and helps to prolong the service life of the heating assembly.

Description

Technical Field

[0001] This application relates to the field of printing technology, and more particularly to a printer. Background Technology

[0002] Thermal transfer printers use heat and pressure applied by the printhead to transfer ink from a ribbon to the surface of printing paper, thus forming the desired text and graphic information. However, in related technologies, if the printer does not immediately proceed to the next print job after completing the current print job, unexpected black lines may form on the surface of the paper. This not only affects the clarity and legibility of the next printout but may also lead to paper waste, reduced print quality, and lower consumable utilization. Utility Model Content

[0003] This application provides a printer that can solve the technical problem in the related art of black lines appearing on the printing paper during the printing task interval.

[0004] This application provides a printer, which includes a metal core and a printhead. The metal core has a first surface. The printhead includes a printhead holder and a heating assembly. The heating assembly protrudes from the first surface of the printhead holder and has a printing surface for supporting printing consumables. The heating assembly is used to heat the printing consumables resting on the printing surface. The printhead holder is integrally formed with the metal core to receive the heat generated by the heating assembly and transfer the heat to the metal core.

[0005] In some embodiments, the printhead holder and the heating assembly are stacked along a first direction, and the printhead holder is located on the side of the heating assembly away from the printing surface; the printhead holder includes a first positioning part, and the heating assembly includes a second positioning part, the first positioning part and the second positioning part are nested together to define the position of the heating assembly relative to the printhead holder.

[0006] In some embodiments, the printhead assembly includes a plurality of first positioning portions spaced apart, and the heating assembly includes a plurality of second positioning portions nested in a one-to-one correspondence with the plurality of first positioning portions; and / or, the printhead further includes a thermally conductive positioning member, wherein the first positioning portions have a first positioning hole, the second positioning portions have a second positioning hole, and the second positioning hole extends to the surface of the printhead assembly away from the heating assembly, a portion of the thermally conductive positioning member passes through the first positioning hole and is disposed within the second positioning hole, and another portion of the thermally conductive positioning member abuts against the surface of the printhead assembly away from the heating assembly.

[0007] In some embodiments, one of the first positioning part and the second positioning part is a positioning groove and the other is a positioning protrusion, the positioning protrusion being disposed in the positioning groove; along a direction perpendicular to the first direction, the positioning protrusion and the side wall of the positioning groove are spaced apart, and the distance is D, where D satisfies: 0.1mm≤D≤0.5mm.

[0008] In some embodiments, the printer further includes a housing having a first mounting cavity, the metal core being disposed within the first mounting cavity; the printer further includes a consumable cartridge, the housing having a second mounting cavity for accommodating the consumable cartridge, and a mounting through hole communicating the first mounting cavity and the second mounting cavity, the print head passing through the mounting through hole and extending into the second mounting cavity to receive the printing consumables output from the consumable cartridge.

[0009] In some embodiments, the printer further includes a housing having a first mounting cavity, in which the metal core is disposed; the housing also has a paper outlet communicating with the first mounting cavity, the paper outlet communicating with the outside of the printer, the paper outlet being disposed in a second direction on one side of the printhead base and the heating assembly to receive the printing consumables passing through the heating assembly.

[0010] In some embodiments, along the second direction, the distance from the heating component to the paper outlet is S1, where S1 satisfies: 6mm≤S1≤15mm; along the first direction in which the printhead base and the heating component are stacked, the distance from the heating component to the paper outlet is S2, where S2 satisfies: 0.15mm≤S2≤0.5mm; wherein the first direction and the second direction are perpendicular to the thickness direction of the printer.

[0011] In some embodiments, the printer further includes: a housing having a first mounting cavity, the metal core being disposed within the first mounting cavity; a plurality of power components disposed within the first mounting cavity, at least some of the power components being mounted on the metal core; and / or, at least some of the power components being spaced apart from the metal core.

[0012] In some embodiments, the housing includes a surrounding plate that is angled to the first surface. The surrounding plate has a plurality of heat dissipation holes that communicate with the first mounting cavity, and the first mounting cavity communicates with the external environment through the heat dissipation holes to disperse the heat generated by the power element to the external environment.

[0013] In some embodiments, the plurality of power components include drive motors mounted on the metal core; the printer further includes a printing roller disposed corresponding to the print head and connected to the metal core, the drive motors being drive-connected to the printing rollers to drive the printing rollers to rotate, the printing rollers being used to contact the printing consumables supported on the print head, thereby driving the printing consumables to move; wherein the drive motors and the print head are spaced apart along a diagonal direction of the metal core.

[0014] In some embodiments, the distance between the drive motor and the printhead base in the diagonal direction of the metal mechanism is L, where L satisfies: 10mm≤L≤40mm.

[0015] In some embodiments, the plurality of heat dissipation holes include at least one first heat dissipation hole, which is located on the side of the drive motor away from the print head in a direction perpendicular to the axial direction of the print roller.

[0016] In some embodiments, the plurality of power elements include batteries, which are spaced apart from the metal core; the distance between the batteries and the metal core along a direction perpendicular to the thickness direction of the printer is A1, where A1 satisfies: 1.5mm≤A1≤3mm.

[0017] In some embodiments, the plurality of power components include an electronic control board, which is spaced apart from the metal mechanism; the distance between the electronic control board and the metal mechanism along a direction perpendicular to the thickness direction of the printer is A2, where A2 satisfies: 1mm≤A2≤10mm.

[0018] In some embodiments, the printer further includes a housing comprising a bottom shell and a cover, wherein the bottom shell and the cover are disposed opposite each other in the thickness direction of the printer, and the metal movement is located between the bottom shell and the cover, wherein the first surface of the metal movement faces the cover, and the metal movement is spaced apart from the bottom shell.

[0019] A printer based on an embodiment of this application integrates the printhead mount with the metal core, enabling more efficient heat transfer from the heating element to the metal core. This facilitates rapid release of residual heat from the printhead, preventing localized blackening of the paper after printing due to heat retention in the heating area. This application also improves print clarity and consumable utilization by optimizing the thermal management mechanism during intermittent printing, enhancing the stability of printhead thermal control and extending the lifespan of the heating element. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of a printer according to one embodiment of this application;

[0022] Figure 2 This is a partial exploded view of a printer according to an embodiment of this application;

[0023] Figure 3 This is a partial top view of a printer according to an embodiment of this application;

[0024] Figure 4 for Figure 3 A magnified schematic diagram of the local structure at point E;

[0025] Figure 5 This is another partial top view of a printer according to an embodiment of this application;

[0026] Figure 6 This is a cross-sectional view of a printer according to one embodiment of this application.

[0027] Figure label:

[0028] 1. Printer;

[0029] 10. Metal movement; 10a. First surface;

[0030] 20. Printhead; 21. Printhead mount; 211. First positioning part; 22. Heating assembly; 221. Second positioning part; 22a. Printing surface; 23. Thermally conductive positioning component;

[0031] 30. Housing; 310. First mounting cavity; 320. Second mounting cavity; 30a. Mounting through hole; 30b. Paper outlet; 31. Bottom shell; 301. Enclosure; 311. Heat dissipation hole; 3111. First heat dissipation hole; 32. Cover;

[0032] 40. Consumables box;

[0033] 51. Drive motor; 52. Battery; 53. Electronic control board;

[0034] 60. Printing roller;

[0035] X, first direction; Y, second direction; Z, thickness direction of the printer. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0037] With the widespread application of thermal printing equipment in various automation scenarios, the stability of print quality and the efficiency of consumable utilization have become important factors affecting printer performance. In related technologies, if the heat from the print head is not dissipated in time during printing intervals, the print head continues to heat the ink on the ribbon, causing the ink to transfer to the paper and producing unexpected black lines on the paper, affecting subsequent printing. Based on this, this application provides a printer.

[0038] Please see Figures 1-3 The printer 1 includes a metal core 10 and a printhead 20. The metal core 10 has a first surface 10a. The printhead 20 includes a printhead holder 21 and a heating assembly 22. The heating assembly 22 protrudes from the first surface 10a of the printhead holder 21 and has a printing surface 22a for supporting printing consumables. The heating assembly 22 is used to heat the printing consumables resting on the printing surface 22a. The printing consumables include printing paper and a ribbon output from the consumable cassette. The two are stacked together as they enter the printhead 20, with the ribbon sandwiched between the printing paper and the printing surface 22a. When the printing job starts, the heating assembly 22 precisely controls the position and intensity of the heating area according to the printing signal, locally transferring heat to the ribbon, so that the dye on the ribbon is transferred to the printing paper to form the desired image. In this embodiment, the printhead holder 21 is integrally formed with the metal core 10 to receive the heat generated by the heating assembly 22 and transfer the heat to the metal core 10.

[0039] Based on the above embodiment, the printer 1, by integrating the printhead mount 21 with the metal core 10, forms a stable and reliable heat conduction path. This allows the heating component 22 to conduct heat to the metal core 10 more efficiently, achieving rapid release of residual heat from the printhead 20. This improves the problem of localized blackening of the printed paper caused by heat retention in the heating area after printing. Thus, by optimizing the thermal management mechanism during intermittent printing, print clarity and consumable utilization are improved. Furthermore, the integrated metal structure also reduces overheat buildup and fatigue of the heating component 22, thereby extending the lifespan of the printhead 20.

[0040] Please see Figures 3-4The printhead holder 21 and the heating assembly 22 are stacked along the first direction X, with the printhead holder 21 located on the side of the heating assembly 22 facing away from the printing surface 22a. The printhead holder 21 includes a first positioning part 211, and the heating assembly 22 includes a second positioning part 221. The first positioning part 211 and the second positioning part 221 are nested together to define the position of the heating assembly 22 relative to the printhead holder 21. In this way, the printhead holder 21 and the heating assembly 22 form a stable and tight fit, providing an effective conduction path for heat energy. The direct contact between the two allows the heat generated by the heating assembly 22 to be quickly transferred to the printhead holder 21.

[0041] In some embodiments, the printhead holder 21 includes a plurality of first positioning portions 211 spaced apart, and the heating assembly 22 includes a plurality of second positioning portions 221 nested in a one-to-one correspondence with the plurality of first positioning portions 211. The nested arrangement of the plurality of first positioning portions 211 and the plurality of second positioning portions 221 enhances the assembly stability between the printhead holder 21 and the heating assembly 22, enabling uniform and tight contact between them and further improving heat dissipation performance.

[0042] In other embodiments, the printhead 20 further includes a thermally conductive positioning member 23. A first positioning portion 211 has a first positioning hole, and a second positioning portion 221 has a second positioning hole. The second positioning hole extends to the surface of the printhead base 21 facing away from the heating assembly 22. A portion of the thermally conductive positioning member 23 passes through the first positioning hole and is disposed within the second positioning hole, while another portion of the thermally conductive positioning member 23 abuts against the surface of the printhead base 21 facing away from the heating assembly 22. The thermally conductive positioning member 23 compacts the contact interface between the printhead base 21 and the heating assembly 22, enhancing the conduction efficiency between them. It also helps to mitigate positional shifts of the heating assembly 22 caused by thermal expansion during use. Optionally, the heat-conducting positioning component 23 can be a fastener, such as a bolt, with the second positioning hole being a threaded hole. The two are screwed together to achieve tight contact between the printhead base 21 and the heating component 22. Alternatively, the heat-conducting positioning component 23 can be a pin, which is inserted into the first positioning hole and the second positioning hole with an interference fit to limit the relative position of the printhead base 21 and the heating component 22 and improve the assembly tightness.

[0043] In other embodiments, the printhead base 21 includes a plurality of first positioning portions 211 spaced apart, and the heating assembly 22 includes a plurality of second positioning portions 221 nested in correspondence with the plurality of first positioning portions 211. Furthermore, the printhead 20 also includes at least one thermally conductive positioning member 23. At least one first positioning portion 211 has a first positioning hole, and at least one second positioning portion 221 has a second positioning hole, extending to the surface of the printhead base 21 facing away from the heating assembly 22. A portion of the thermally conductive positioning member 23 passes through the first positioning hole and is disposed within the second positioning hole, while another portion abuts against the surface of the printhead base 21 facing away from the heating assembly 22. The multiple nested first positioning portions 211 and second positioning portions 221 create a uniform and tight contact between the printhead base 21 and the heating assembly 22, and the contact interface between them is compacted under the action of the thermally conductive positioning member 23, further improving heat conduction efficiency and enhancing the heat dissipation effect of the printhead 20.

[0044] In some embodiments, one of the first positioning part 211 and the second positioning part 221 is a positioning groove and the other is a positioning protrusion. The positioning protrusion is disposed in the positioning groove, thereby achieving relative fixation between the printhead base 21 and the heating component 22. Along a direction perpendicular to the first direction X, the positioning protrusion and the side wall surface of the positioning groove are spaced apart, and the distance between them is D, where D satisfies: 0.1mm ≤ D ≤ 0.5mm. By controlling the distance D to satisfy the above range, it is convenient for the positioning protrusion and the positioning groove to be aligned and nested, while also taking into account the heat conduction efficiency between the printhead base 21 and the heating component 22. If D > 0.5mm, a large air insulation layer is formed between the printhead base 21 and the heating component 22, which is not conducive to the conduction of heat from the heating component 22 to the printhead base 21; if D < 0.1mm, the assembly jamming or damage of the first positioning part 211 and the second positioning part 221 may easily occur due to the influence of component heating tolerance and material thermal expansion.

[0045] like Figure 5 and Figure 6 As shown, printer 1 also includes a housing 30 and a consumable cartridge 40. The housing 30 has a first mounting cavity 310, in which the metal core 10 is disposed. The housing 30 has a second mounting cavity 320 for accommodating the consumable cartridge 40. The housing 30 also has a mounting through hole 30a connecting the first mounting cavity 310 and the second mounting cavity 320. The print head 20 passes through the mounting through hole 30a and extends into the second mounting cavity 320. During printing, the print head 20 receives the printing consumables output from the consumable cartridge 40. Optionally, the print head 20 is positioned corresponding to the output end of the consumable cartridge 40, forming a natural and smooth paper output path between the print head 20 and the output end of the consumable cartridge 40. This also contributes to the compactness of the printer body layout and reduces the risk of paper slippage.

[0046] In some embodiments, the housing 30 further has a paper output port 30b communicating with the first mounting cavity 310. The paper output port 30b is connected to the outside of the printer 1 and is located on one side of the printhead base 21 and the heating assembly 22 in the second direction Y to receive printing consumables passing through the heating assembly 22. The paper output port 30b provides an open channel for the heating assembly 22 to the external space. Heat generated or remaining in the heating assembly 22 during non-printing states can also be released to the external space of the printer 1 through the paper output port 30b via radiation or convection, effectively alleviating heat accumulation inside the housing 30.

[0047] In some embodiments, along the second direction Y, the distance from the heating component 22 to the paper outlet 30b is S1, where S1 satisfies: 6mm ≤ S1 ≤ 15mm. Along the first direction X, where the printhead mount 21 and the heating component 22 are stacked, the distance from the heating component 22 to the paper outlet 30b is S2, where S2 satisfies: 0.15mm ≤ S2 ≤ 0.5mm. The first direction X and the second direction Y are perpendicular to the printer thickness direction Z. By controlling S1 and S2 to satisfy the above ranges, the heating component 22 is positioned close to the paper outlet 30b, ensuring sufficient space for the printing consumables to be smoothly discharged after passing through the heating component 22. This also shortens the heat conduction path and improves the efficiency of heat diffusion towards the paper outlet direction.

[0048] In some embodiments, the printer 1 further includes a housing 30 and multiple power components. The housing 30 has a first mounting cavity 310, within which the metal core 10 and the multiple power components are disposed. At least some of the power components are mounted on the metal core 10, allowing the heat generated during operation to be rapidly conducted to the metal core 10 and diffused outwards through its large-area metal structure. Alternatively, at least some power components are spaced apart from the metal core 10 to avoid heat concentration or interference. Alternatively, some power components are mounted on the metal core 10, and others are spaced apart from it. For example, power components with lower heat generation are mounted on the metal core 10, while power components with higher heat generation are spaced apart to prevent abnormal temperature rises in the metal core 10 caused by the higher-heat-generating power components, which could lead to malfunction or reduced lifespan of the printhead 20, thereby improving the system thermal stability and operational reliability of the printer 1's functional modules.

[0049] In some embodiments, the housing 30 includes a surrounding plate 301 arranged at an angle to the first surface 10a. The surrounding plate 301 has a plurality of heat dissipation holes 311 communicating with the first mounting cavity 310, and the first mounting cavity 310 is connected to the external environment through the heat dissipation holes 311. The heat dissipation holes 311 on the surrounding plate 301 provide a channel for heat to diffuse outward, allowing the heat generated by the power components during continuous operation to be discharged through the heat dissipation holes 311, thereby preventing heat from accumulating in the first mounting cavity 310. The heat dissipation holes 311 are arranged on the surrounding plate 301 at an angle to the first surface 10a, thereby forming a more favorable convection path and helping to enhance natural airflow.

[0050] In some embodiments, multiple power components include a drive motor 51 mounted on a metal frame 10. The printer 1 also includes a print roller 60 connected to the metal frame 10. The print roller 60 is positioned corresponding to the print head 20 and is used to contact the printing consumables supported by the print head 20. The drive motor 51 is driveably connected to the print roller 60 and can drive the print roller 60 to rotate, thereby driving the movement of the printing consumables and achieving continuous delivery or replacement of the printing consumables. The drive motor 51 and the print head 20 are diagonally spaced along the metal frame 10, maximizing their relative distance on the first surface 10a of the metal frame 10. Since the print head 20 is temperature sensitive, additional heat interference may affect print quality. Therefore, the diagonal arrangement creates a heat isolation path, allowing the heat released by the drive motor 51 to be dispersed by the metal frame 10 during conduction, minimizing the possibility of it being transferred to the print head holder 21, thus protecting the accuracy of the print head's thermal response and printing stability.

[0051] In some embodiments, the distance between the drive motor 51 and the printhead base 21 in the diagonal direction of the metal mechanism 10 is L, where L satisfies: 10mm ≤ L ≤ 40mm. By controlling the distance L to meet the above range, effective thermal isolation between the drive motor 51 and the printhead base 21 is ensured, while also taking into account the compactness and transmission efficiency of the whole machine. If L > 40mm, the transmission path and the overall size of the machine are lengthened, which is not conducive to the compact design of the printer 1; if L < 10mm, the heat generated by the drive motor 51 during operation may be conducted to the printhead base 21 through the metal mechanism 10 due to the close distance, thereby affecting the temperature control accuracy of the printhead 20 and the stability of the thermal response of the printing consumables.

[0052] In some embodiments, the plurality of heat dissipation holes 311 include at least one first heat dissipation hole 3111. In a direction perpendicular to the axial direction of the print roller 60, the first heat dissipation hole is located on the side of the drive motor 51 away from the print head 20. This allows the heat released by the drive motor 51 to preferentially diffuse away from the print head 20 and be discharged to the outside of the printer 1 via the first heat dissipation hole 3111, reducing the risk of thermal interference. As a high-power component, the drive motor 51 generates more heat during operation than surrounding low-power circuits and thermally sensitive components. This application constructs an efficient heat dissipation path facing the external environment to avoid localized heat accumulation.

[0053] Optionally, multiple power components include a battery 52, which supplies power to other electrical components. For example, the battery 52 is electrically connected to and supplies power to the electronic control board 53. The battery 52 generates heat during charging and discharging. Therefore, in this embodiment, the battery 52 and the metal core 10 are spaced apart. Along the direction perpendicular to the thickness direction Z of the printer 1, the distance between the battery 52 and the metal core 10 is A1, where A1 satisfies: 1.5mm ≤ A1 ≤ 3mm. By controlling A1 to meet the above range, unnecessary heat transfer between the battery 52 and the metal core 10 is suppressed, while also maintaining the compactness of the internal layout of the printer 1. If A1 > 3mm, the battery placement space is too large, affecting the overall compactness and integration efficiency of the printer 1. If A1 < 1.5mm, the distance between the battery 52 and the metal core 10 is too close, which may cause mutual heat interference between the battery 52 and the printhead 20 due to contact or proximity conduction, leading to shortened battery life or unstable printing quality of the printhead 20.

[0054] Optionally, multiple power components include an electronic control board 53. The electronic control board 53 typically houses multiple components that continuously operate and generate significant heat during printing. To prevent thermal interference between the electronic control board 53 and the metal printhead 10, the electronic control board 53 and the metal printhead 10 are spaced apart. Along the direction perpendicular to the thickness direction Z of the printer 1, the distance between the electronic control board 53 and the metal printhead 10 is A2, where A2 satisfies: 1mm ≤ A2 ≤ 10mm. By controlling A2 to meet the above range, a thermal isolation space is formed between the electronic control board 53 and the metal printhead 10, suppressing unnecessary heat transfer between them. If A2 > 10mm, the internal layout of the printer 1 is loose, resulting in a larger overall size of the printer 1; if A1 < 1mm, the distance between the electronic control board 53 and the metal printhead 10 is too close, and the heat generated by the electronic control board 53 may affect the printing quality of the printhead 20. Furthermore, the electronic control board 53 is susceptible to heat radiation and conduction from the metal printhead 10, affecting the stable operation of the components on the board.

[0055] In some embodiments, the housing 30 includes a bottom shell 31 and a cover 32, which are detachably connected and together define a first mounting cavity 310 to provide mounting space for the metal mechanism 10 and power components. The detachable connection between the bottom shell 31 and the cover 32 includes at least one of snap-fit, screw-fit, and adhesive-fit. Optionally, the bottom shell 31 includes a surrounding plate 301, i.e., a plurality of heat dissipation holes 311 are formed on the sidewall of the bottom shell 31. A second mounting cavity 320 is formed on the side of the cover 32 opposite to the bottom shell 31 along the thickness direction Z of the printer 1, and the second mounting cavity 320 is used to accommodate the consumable cartridge 40.

[0056] In the thickness direction Z of printer 1, the bottom shell 31 and the cover 32 are arranged opposite to each other, and the metal core 10 is located between the bottom shell 3 and the cover 32. The first surface 10a of the metal core 10 faces the cover 32. The metal core 10 and the bottom shell 31 are spaced apart, that is, the metal core 10 is suspended inside the machine housing without directly contacting the bottom shell 31, thereby leaving a certain structural buffer and thermal buffer space below it, avoiding the large amount of heat received by the metal core 10 from being transferred to the bottom shell 31, causing the outer wall of printer 1 to overheat, avoiding the burning sensation on the user's hands, or damaging the external equipment supported by printer 1.

[0057] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0058] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A printer, characterized in that, The printer includes: Metal movement, having a first surface; and A printhead includes a printhead base and a heating assembly. The heating assembly protrudes from the first surface of the printhead base and has a printing surface for supporting printing consumables. The heating assembly is used to heat the printing consumables that rest against the printing surface. The printhead base is integrally formed with the metal core to receive the heat generated by the heating component and transfer the heat to the metal core.

2. The printer according to claim 1, characterized in that, The printhead holder and the heating assembly are stacked together along a first direction, and the printhead holder is located on the side of the heating assembly away from the printing surface. The printhead assembly includes a first positioning part, and the heating component includes a second positioning part. The first positioning part and the second positioning part are nested together to define the position of the heating component relative to the printhead assembly.

3. The printer according to claim 2, characterized in that, The printhead assembly includes a plurality of first positioning portions spaced apart, and the heating assembly includes a plurality of second positioning portions nested in a one-to-one correspondence with the plurality of first positioning portions; and / or The printhead also includes a thermally conductive positioning member. The first positioning part has a first positioning hole, and the second positioning part has a second positioning hole. The second positioning hole extends to the surface of the printhead seat away from the heating component. A portion of the thermally conductive positioning member passes through the first positioning hole and is disposed in the second positioning hole. Another portion of the thermally conductive positioning member abuts against the surface of the printhead seat away from the heating component.

4. The printer according to claim 2, characterized in that, One of the first positioning part and the second positioning part is a positioning groove and the other is a positioning protrusion, wherein the positioning protrusion is disposed in the positioning groove; Along a direction perpendicular to the first direction, the positioning protrusion and the side wall of the positioning groove are spaced apart, and the distance is D, where D satisfies: 0.1mm≤D≤0.5mm.

5. The printer according to claim 1, characterized in that, The printer also includes a housing, the housing having a first mounting cavity, and the metal core disposed within the first mounting cavity; The printer also includes a consumable cartridge, the housing having a second mounting cavity for accommodating the consumable cartridge, and a mounting through hole communicating with the first mounting cavity and the second mounting cavity, the print head passing through the mounting through hole and extending into the second mounting cavity to receive the printing consumables output by the consumable cartridge.

6. The printer according to claim 1, characterized in that, The printer also includes a housing, the housing having a first mounting cavity, and the metal core disposed within the first mounting cavity; The housing also has a paper outlet communicating with the first mounting cavity. The paper outlet is connected to the outside of the printer and is located in a second direction on one side of the printhead base and the heating assembly to receive the printing consumables passing through the heating assembly.

7. The printer according to claim 6, characterized in that, Along the second direction, the distance from the heating component to the paper outlet is S1, where S1 satisfies: 6mm≤S1≤15mm; Along a first direction in which the printhead base and the heating assembly are stacked, the distance from the heating assembly to the paper outlet is S2, where S2 satisfies: 0.15mm≤S2≤0.5mm; The first direction and the second direction are perpendicular to the thickness direction of the printer.

8. The printer according to claim 1, characterized in that, The printer also includes: The housing has a first mounting cavity, and the metal movement is disposed within the first mounting cavity; and Multiple power components are disposed within the first mounting cavity, with at least some of the power components mounted on the metal mechanism; and / or, at least some of the power components are spaced apart from the metal mechanism.

9. The printer according to claim 8, characterized in that, The housing includes a surrounding plate that is angled to the first surface. The surrounding plate has a plurality of heat dissipation holes that communicate with the first mounting cavity. The first mounting cavity is connected to the external environment through the heat dissipation holes to disperse the heat generated by the power element to the external environment.

10. The printer according to claim 9, characterized in that, The plurality of power components include a drive motor, the drive motor being mounted on the metal core; The printer also includes a printing roller, which is disposed and connected to the metal core corresponding to the print head. The drive motor is connected to the printing roller to drive the printing roller to rotate. The printing roller is used to contact the printing consumables supported by the print head, thereby driving the printing consumables to move. The drive motor and the print head are arranged diagonally along the metal core.

11. The printer according to claim 10, characterized in that, In the diagonal direction of the metal mechanism, the distance between the drive motor and the printhead base is L, where L satisfies: 10mm≤L≤40mm.

12. The printer according to claim 10, characterized in that, The plurality of heat dissipation holes include at least one first heat dissipation hole, which is located on the side of the drive motor away from the print head in a direction perpendicular to the axial direction of the print roller.

13. The printer according to claim 8, characterized in that, The plurality of power components include batteries, which are spaced apart from the metal core; Along a direction perpendicular to the thickness direction of the printer, the distance between the battery and the metal core is A1, where A1 satisfies: 1.5mm≤A1≤3mm.

14. The printer according to claim 8, characterized in that, The plurality of power components include an electronic control board, which is spaced apart from the metal core. Along a direction perpendicular to the thickness direction of the printer, the distance between the electronic control board and the metal mechanism is A2, where A2 satisfies: 1mm≤A2≤10mm.

15. The printer according to claim 1, characterized in that, The printer also includes a housing, which includes a bottom shell and a cover. In the thickness direction of the printer, the bottom shell and the cover are disposed opposite to each other, and the metal movement is located between the bottom shell and the cover. The first surface of the metal movement faces the cover, and the metal movement and the bottom shell are spaced apart.

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