Portable thermal printer

Abstract

The utility model relates to the technical field of thermal printers, in particular to a portable thermal printer. Comprising a shell for accommodating a mobile phone and a printer module accommodating cavity; a mainboard, a thermosensitive paper tube, a rubber roller and a printing head are arranged in the printer module containing cavity, a paper outlet is formed in the side portion of the printer module containing cavity, the shell is arranged on one side of the printer module containing cavity in a communicating mode, and a Bluetooth module of the mobile phone is connected with a Bluetooth module of the mainboard in a paired mode. The shell is internally provided with the space for accommodating the mobile phone, so that the printer module can be held together with the mobile phone and is convenient to use; in actual use, the opening of the printer module containing cavity is shielded by the mobile phone, interference of external sundries on equipment operation is avoided, and compared with a mobile phone shell and a printer shell which are used separately in the prior art, the combination degree is high, the equipment is light, and the use effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of thermal printers, in particular to a portable thermal printer. Background Art

[0002] The main components of a thermal printer include a print head and thermal paper. When working, the print head contacts the thermal paper by heating, causing the thermal coating on the paper to undergo chemical changes, thereby forming the desired print pattern. This method eliminates the complex ink cartridge or toner system required by traditional printers, effectively reducing the overall size of the printer;

[0003] Thermal printers on the market are all independent entities. It is inconvenient to hold them while taking photos while traveling, which makes it impossible to print the photos taken in time, resulting in a long stay time, affecting the user experience of the device. Therefore, the present application provides a portable thermal printer. Utility Model Content

[0004] In order to solve the deficiencies in the above-mentioned prior art, the purpose of the utility model is to provide a portable thermal printer that can accommodate a mobile phone. On the basis of ensuring that the device is lightweight and portable, the printer module is preheated and started according to the shooting behavior, so that the printer module does not need to be in a powered state for a long time, thereby extending the battery life of the printer.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A portable thermal printer is provided, comprising a shell and a printer module accommodating chamber; a mainboard, a thermal paper roll, a rubber roller and a print head are arranged in the printer module accommodating chamber, a paper outlet is arranged on the side of the printer module accommodating chamber, the shell is connected to one side of the printer module accommodating chamber, a space for accommodating a mobile phone is arranged in the shell, and a Bluetooth module of the mobile phone is paired and connected with a Bluetooth module of the mainboard.

[0007] Furthermore, the thermal paper roll and the rubber roller are rotatably installed in the printer module accommodating chamber, and a micro motor I and a micro motor II are installed in the printer module accommodating chamber to respectively drive the thermal paper roll and the rubber roller to rotate.

[0008] Furthermore, the thermal paper roll is reeled and connected with thermal paper, and the end of the thermal paper passes through the rubber roller and the print head and extends to the paper outlet.

[0009] Furthermore, the shell is provided with a perspective opening for the mobile phone camera to protrude, and the side of the shell is provided with elastic sheets I and II. An ultra-small micro switch is pasted on the inner side of the elastic sheet II. The ultra-small micro switch is connected to the mainboard through a wire, and the other end of the ultra-small micro switch is in contact with the camera button of the mobile phone.

[0010] Furthermore, a holding protrusion is provided on a side of the printer module accommodating cavity away from the shell, and the thermal paper roll is installed on the inner side of the holding protrusion.

[0011] Furthermore, saw teeth are fixedly mounted on the side of the paper outlet.

[0012] Furthermore, a battery is installed in the printer module accommodating cavity, and the battery is connected to the mainboard through a wire.

[0013] Furthermore, a cover is detachably mounted at the connection between the shell and the printer module accommodating chamber.

[0014] Furthermore, the housing is provided with a mobile phone charging hole for the mobile phone charging cable to pass through.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The portable thermal printer of the utility model example has a space for accommodating a mobile phone in the shell, so that the printer module can be held together with the mobile phone for portable use; in actual use, the mobile phone is used to cover the opening of the printer module accommodating cavity to prevent external debris from interfering with the operation of the device. Compared with the mobile phone shell and printer shell used separately in the prior art, the degree of integration is high, the device is lightweight and has a good use effect.

[0017] 2. When using a mobile phone to take a photo, the portable thermal printer of the utility model example presses the elastic sheet II to deform the elastic sheet II and transmits the pressure to the camera button of the mobile phone. At the same time, the ultra-small micro switch is pressed, the printer module is preheated and started, and then the photos taken by the mobile phone are transmitted to the Bluetooth module of the mainboard for printing. The collaborative control effect is good, the synchronous response efficiency is high, and the scheme of starting the printer module according to the shooting operation can make the printer module not need to be in a charged state for a long time, thereby extending the battery life of the printer.

[0018] 3. The portable thermal printer of the utility model example has a holding protrusion so that the mobile phone can be well held in the palm when it is placed horizontally for shooting, and the holding protrusion protrudes outward, so that the diameter of the thermal paper tube that can be accommodated inside is larger, which reduces the number of times the thermal paper tube needs to be replaced, and is highly convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0020] Figure 1 The overall structure of the portable thermal printer provided by the embodiment of the utility model is shown in FIG. Figure 1 ;

[0021] Figure 2 The overall structure of the portable thermal printer provided by the embodiment of the utility model is shown in FIG. Figure 2 ;

[0022] Figure 3 This is a schematic structural diagram of the elastic sheet II and the ultra-small micro switch provided in the embodiment of the utility model.

[0023] In the figure: 11 housing, 111 limit edge, 12 perspective opening, 13 elastic sheet I, 14 elastic sheet II, 141 ultra-small micro switch, 21 printer module accommodating cavity, 211 holding protrusion, 212 paper outlet, 213 sawtooth, 22 main board, 23 thermal paper tube, 24 rubber roller, 25 print head. DETAILED DESCRIPTION

[0024] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of the embodiments.

[0025] The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0026] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0027] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. It should also be noted that, for ease of description, only the parts related to the utility model are shown in the drawings. Example

[0030] like Figure 1 As shown, this embodiment provides a portable thermal printer, including a shell 11 and a printer module accommodating chamber 21; a mainboard 22, a thermal paper roll 23, a rubber roller 24 and a print head 25 are arranged in the printer module accommodating chamber 21, a battery is installed in the printer module accommodating chamber 21, and the battery is connected to the mainboard 22 through a wire, and a thermal paper is rolled up and connected on the thermal paper roll 23, and the end of the thermal paper passes through the rubber roller 24 and the print head 25 and extends to the paper outlet 212; the thermal paper roll 23 and the rubber roller 24 are rotatably installed in the printer module accommodating chamber 21, and micro motors I and II are installed in the printer module accommodating chamber 21 to drive the thermal paper roll 23 and the rubber roller 24 to rotate respectively.

[0031] like Figure 1-2 As shown, a paper outlet 212 is provided on the side of the printer module accommodating cavity 21, and a sawtooth 213 is fixedly installed on the side of the paper outlet 212, so that the thermal paper tube 23 is easy to tear and separate. The shell 11 is connected to one side of the printer module accommodating cavity 21, and a space for accommodating a mobile phone is provided in the shell 11, so that the printer module can be held together with the mobile phone for portable use. A limiting edge 111 is provided on the shell 11 to prevent the mobile phone from slipping out of the shell 11, and the Bluetooth module of the mobile phone is paired and connected with the Bluetooth module of the mainboard 22.

[0032] The paper outlet 212 is located on a side of the printer module accommodating cavity 21 close to the perspective opening 12 , so that after printing is completed, the thermal paper can be smoothly exported without affecting the user's grip on the device.

[0033] like Figure 1-3As shown, the shell 11 is provided with a perspective opening 12 for the mobile phone camera to protrude, and the side of the shell 11 is provided with an elastic sheet I 13 and an elastic sheet II 14, and an ultra-small micro switch 141 is pasted on the inner side of the elastic sheet II 14. The ultra-small micro switch 141 is connected to the main board 22 through a wire, and the other end of the ultra-small micro switch 141 is in contact with the camera button of the mobile phone.

[0034] To facilitate charging of the mobile phone, optionally, a mobile phone charging hole (not shown in the figure) for passing the mobile phone charging cable is provided on the housing 11. Of course, the charging hole is not necessarily provided, and the mobile phone can also be charged after being removed from the housing 11.

[0035] When using the portable thermal printer of this application to print photos taken with a mobile phone:

[0036] First, place the mobile phone in the housing 11, and use the mobile phone to cover the opening of the printer module accommodating cavity 21 to prevent external debris from interfering with the operation of the device. Compared with the mobile phone shell and printer shell used separately in the prior art, the combination is high, and the device is lightweight and has a good use effect;

[0037] Then, the elastic sheet II 14 is pressed to deform the elastic sheet II 14, and the pressure is transmitted to the camera button of the mobile phone, and the mobile phone is used to perform shooting operations. At the same time, the ultra-small micro switch 141 is pressed, and the printer module is preheated and started. Then, the photos taken by the mobile phone are transmitted to the Bluetooth module of the main board 22 for printing. The collaborative control effect is good, the synchronous response efficiency is high, and the scheme of starting the printer module according to the shooting operation can make the printer module not need to be in a powered state for a long time, thereby extending the battery life of the printer. Example

[0038] The features of this embodiment that are the same as those of the first embodiment are not described in detail. The difference between this embodiment and the first embodiment is that: Figure 2 As shown, in this embodiment, a holding protrusion 211 is provided on the side of the printer module accommodating cavity 21 away from the housing 11 , and the thermal paper tube 23 is installed on the inner side of the holding protrusion 211 .

[0039] The holding protrusion 211 is provided so that the mobile phone can be well held in the palm when it is placed horizontally for shooting, and the holding protrusion 211 protrudes outward, so that the diameter of the thermal paper tube 23 that can be accommodated inside it is larger, reducing the number of times the thermal paper tube 23 needs to be replaced, and it is highly convenient. Example

[0040] The features of this embodiment that are the same as those of the first embodiment are not described in detail. The difference between this embodiment and the first embodiment is that: Figure 1As shown, in this embodiment, a cover (not shown in the figure) is detachably installed at the connection between the shell 11 and the printer module accommodating cavity 21. When the device is idle, the cover is installed at the connection between the shell 11 and the printer module accommodating cavity 21 to prevent debris from entering the printer module accommodating cavity 21 and causing damage to the device.

[0041] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the utility model involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the concept of the utility model. For example, the above features are replaced with the technical features with similar functions disclosed in the present application (but not limited to) by each other to form a technical solution.

[0042] Except for the technical features described in the specification, the other technical features are known technologies to those skilled in the art. In order to highlight the innovative features of the present utility model, the other technical features will not be described in detail here.

Claims

1. A portable thermal printer, comprising a main board (22), a thermal paper roll (23), a rubber roller (24) and a print head (25) arranged in a printer module accommodating chamber (21), wherein a paper outlet (212) is arranged on a side of the printer module accommodating chamber (21), characterized in that: One side of the printer module accommodating cavity (21) is connected to a housing (11) for accommodating a mobile phone, and a Bluetooth module of the mobile phone is paired with a Bluetooth module of the mainboard (22); The housing (11) is provided with a perspective opening (12) for the mobile phone camera to protrude, and the side of the housing (11) is provided with an elastic sheet I (13) and an elastic sheet II (14), and an ultra-small micro switch (141) is adhered to the inner side of the elastic sheet II (14), and the ultra-small micro switch (141) is connected to the main board (22) through a wire, and the other end of the ultra-small micro switch (141) is in contact with the camera button of the mobile phone.

2. The portable thermal printer according to claim 1, characterized in that: A holding protrusion (211) is provided on a side of the printer module accommodating cavity (21) away from the housing (11), and the thermal paper tube (23) is mounted on the inner side of the holding protrusion (211).

3. The portable thermal printer according to claim 1, characterized in that: The housing (11) is provided with a limiting edge (111).

4. The portable thermal printer according to claim 1, characterized in that: Saw teeth (213) are fixedly mounted on the side of the paper outlet (212).

5. The portable thermal printer according to claim 1, characterized in that: A battery is installed in the printer module accommodating cavity (21), and the battery is connected to the main board (22) via a wire.

6. The portable thermal printer according to claim 1, characterized in that: A cover is detachably mounted on the connection between the housing (11) and the printer module accommodating chamber (21).

7. The portable thermal printer according to claim 1, characterized in that: The housing (11) is provided with a mobile phone charging hole for the mobile phone charging cable to pass through.

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