Antenna module capable of being assembled with double RFID antennas and thermal printer

Abstract

The utility model provides an antenna module capable of assembling double RFID antennas and a thermal printer, the antenna module comprises a housing, a control circuit board, a lower transmitting antenna and an upper transmitting antenna, an output bottom surface, an output top surface and two supporting parts enclose a paper outlet channel penetrating along the length direction of paper, a communication groove is communicated between an upper accommodating cavity and a lower accommodating cavity, and the communication groove is communicated with the upper accommodating cavity and the lower accommodating cavity. The upper transmitting antenna and the lower transmitting antenna are respectively connected with the control circuit board, the lower transmitting antenna and the upper transmitting antenna are respectively arranged on the upper side and the lower side of the paper outlet channel, when a flexible anti-metal RFID label with a bottom metal layer is printed, RFID printing paper can be read and written through the upper transmitting antenna, and when a printing medium with a top metal layer is printed, the upper transmitting antenna can read and write the RFID printing paper through the lower transmitting antenna. When a common RFID medium is printed, the upper transmitting antenna and the lower transmitting antenna can read and write the RFID printing paper, and when the common RFID medium is printed, the upper transmitting antenna or the lower transmitting antenna can read and write the printing paper, so that the adaptability to different printing media can be improved.

Description

Technical Field

[0001] The utility model relates to the field of thermal printing, in particular to an antenna module capable of being equipped with double RFID antennas and a thermal printer. Background Art

[0002] With the popularization of thermal printers, they are not only used in bank ATMs, supermarket cash registers and e-commerce delivery offices, but are also widely used in the textile field or product labeling field, especially labels with RFID antennas. Labels with RFID antennas can print product information through thermal printers while using the antenna to write information at the same time.

[0003] Some existing tags use flexible anti-metal RFID tags, and the bottom of the flexible anti-metal RFID tags has a metal layer, and the metal layer has a shielding effect. Therefore, the antenna located below cannot read and write the tag, which in turn affects the adaptability of the thermal printer to different types of tags. Utility Model Content

[0004] The first object of the utility model is to provide an antenna module which can be equipped with dual RFID antennas.

[0005] The second object of the utility model is to provide a thermal printer with the above antenna module.

[0006] In order to achieve the first purpose of the utility model, the utility model provides an antenna module that can be equipped with dual RFID antennas, including a shell, a control circuit board, a lower transmitting antenna and an upper transmitting antenna, the shell including a lower shell part, an upper shell part and two supporting parts, the lower shell part surrounds a lower accommodating cavity, the lower shell part is provided with an output bottom surface at the top of the lower accommodating cavity, the inner side of the output bottom surface is provided with a lower antenna mounting groove, the two supporting parts are located at both ends of the output bottom surface based on the paper width direction, the supporting part is provided with a connecting groove along the longitudinal direction, the upper shell part is connected above the two supporting parts, and the upper shell part An upper accommodating cavity is formed, the upper shell is provided with an output top surface at the bottom of the upper accommodating cavity, an upper antenna mounting groove is provided on the inner side of the output top surface, a paper output channel penetrating along the length direction of the paper is formed between the output bottom surface, the output top surface and the two supporting parts, and the connecting groove is connected between the upper accommodating cavity and the lower accommodating cavity; the control circuit board is arranged in the lower accommodating cavity; the lower transmitting antenna is installed in the lower antenna mounting groove, and the lower transmitting antenna is connected to the control circuit board; the upper transmitting antenna is installed in the upper antenna mounting groove, and the lower transmitting antenna is connected to the control circuit board through the upper wire, and the upper wire passes through the connecting groove.

[0007] A further solution is that the antenna module includes an upper cover, and the upper cover covers the upper accommodating cavity.

[0008] A further solution is that a ruler is provided on the upper surface of the upper cover, and the ruler extends along the paper width direction.

[0009] A further solution is that the inner end surface of the upper cover is provided with a positioning rib, and the positioning rib is adjacent to the upper transmitting antenna.

[0010] A further solution is that the upper antenna installation groove has a positioning peripheral wall, the upper transmitting antenna is gap-matched with the positioning peripheral wall, the positioning peripheral wall is provided with a notch on one side close to the connecting groove, and the upper wire passes through the notch.

[0011] A further solution is that the antenna module includes a back cover, which covers the back side of the lower accommodating cavity based on the paper length direction.

[0012] A further solution is that the lower antenna installation slot is provided with an insertion port on the rear side in the paper length direction, and the lower transmitting antenna is installed into the lower antenna installation slot from the insertion port; a limiting block is provided at the upper part of the rear cover, and the limiting block is located at the insertion port and adjacent to the lower transmitting antenna.

[0013] A further solution is that the thermal printer includes a rubber roller and a thermal sheet, the thermal sheet and the rubber roller are opposite to each other and form a paper feeding channel, a paper outlet is arranged at the front end of the paper feeding channel, the thermal printer also includes an antenna module as described above, and the shell is arranged at the front side of the paper outlet.

[0014] The beneficial effect of the utility model is that a paper outlet is formed between the output bottom surface, the output top surface and the two support parts along the length of the paper, and then the printed paper can be output from the paper outlet, and a lower transmitting antenna and an upper transmitting antenna are arranged on the upper and lower sides of the paper outlet passage, respectively. When printing a flexible anti-metal RFID tag with a bottom metal layer, the RFID printed paper can be read and written through the upper transmitting antenna, and when printing a printing medium with a top metal layer, the RFID printed paper can be read and written through the lower transmitting antenna, and when printing ordinary RFID media, the upper transmitting antenna or the lower transmitting antenna can read and write the printed paper, thereby improving the adaptability to different printing media. Furthermore, the upper cover and the back cover can improve the installation stability of the transmitting antenna, and the arrangement of the notch and the connecting groove can make the upper wire conveniently connected to the control circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of an embodiment of the antenna module of the utility model.

[0016] Figure 2 It is a structural diagram of an embodiment of the antenna module of the utility model from another perspective.

[0017] Figure 3 It is an exploded view of an embodiment of the antenna module of the present utility model.

[0018] Figure 4 It is a cross-sectional view of an embodiment of the antenna module of the utility model along the length direction of the paper.

[0019] Figure 5 It is a cross-sectional view of an embodiment of the antenna module of the present invention along the paper width direction.

[0020] Figure 6 yes Figure 5 Enlarged view of point A in the middle.

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments. DETAILED DESCRIPTION

[0022] Reference Figures 1 to 6 The antenna module includes a shell 1, an upper cover 2, a back cover 3, a control circuit board 12, a lower transmitting antenna 13 and an upper transmitting antenna 16. The shell 1 includes a lower shell part 11, an upper shell part 15 and two supporting parts 14. The lower shell part 11 surrounds a lower accommodating cavity 11. The lower shell part 11 is provided with an output bottom surface 111 at the top of the lower accommodating cavity 11. The inner side of the output bottom surface 111 is provided with a lower antenna mounting groove 112. The lower antenna mounting groove 112 is provided with an insertion port 113 on the rear side of the paper length direction X. The lower antenna mounting groove 112 is arranged in a surrounding manner on the front side of the paper length direction X.

[0023] The two support parts 14 are located at both ends of the output bottom surface 111 based on the paper width direction Y. The support part 14 is provided with a connecting groove 141 extending through the longitudinal direction. The upper shell part 15 is connected above the two support parts 14. The upper shell part 15 forms an upper accommodating cavity 151. The upper accommodating cavity 151 has an opening at the upper longitudinal direction. The upper shell part 15 is provided with an output top surface 153 at the bottom of the upper accommodating cavity 151. The output top surface 153 is opposite to the output bottom surface 111. An upper antenna mounting groove 152 is provided on the inner side of the output top surface 153. The output bottom surface 111, the output top surface 153 and the two support parts 14 form a paper output channel 10 extending through the paper length direction X. The connecting groove 141 is connected between the upper accommodating cavity 151 and the lower accommodating cavity 11.

[0024] The upper transmitting antenna 16 is installed in the upper antenna installation groove 152. The upper antenna installation groove 152 has a positioning peripheral wall. The upper transmitting antenna 16 is in clearance with the positioning peripheral wall. The positioning peripheral wall is provided with a notch on the side close to the connecting groove 141. The upper wire 161 passes through the notch and the connecting groove 141 and then extends into the lower accommodating cavity 11. The control circuit board 12 is provided in the lower accommodating cavity 11. The upper wire 161 is connected to the control circuit board 12. The lower transmitting antenna 13 is installed in the lower antenna installation groove 112. The lower transmitting antenna 13 is connected to the control circuit board 12. The rear cover 3 covers the rear side of the lower accommodating cavity 11 based on the paper length direction X. The lower antenna installation groove 112 is installed from the insertion port 113 to the lower antenna installation groove 112. The rear cover 3 is provided with a limit block 31 at the upper part. The limit block 31 is located at the insertion port 113 and is adjacent to the lower antenna installation groove 112.

[0025] The upper cover 2 is covered on the upper accommodating cavity 151, and a scale 22 is provided on the upper surface of the upper cover 2. The scale 22 extends along the paper width direction Y. A positioning rib 21 is provided on the inner end surface of the upper cover 2. The positioning rib 21 is adjacent to the upper transmitting antenna 16, and the positioning rib 21 is located on the inner side of the positioning peripheral wall and cooperates with the gap of the positioning peripheral wall.

[0026] The thermal printer includes a rubber roller, a thermal sheet and an antenna module 1 as described above. The thermal sheet and the rubber roller are opposite to each other and form a paper feed channel. A paper outlet is provided at the front end of the paper feed channel. The thermal printer can be a printer as shown in CN209851830U. The antenna module 1 replaces the paper cutter device 2. Then the housing 11 of the antenna module 1 can be assembled to the front side of the paper outlet, thereby realizing the reading and writing of the RFID printing medium. Of course, the antenna module 1 is also suitable for other types of thermal transfer printers, embedded thermal printers, etc., which are all included in the thermal printer in this case.

[0027] As can be seen from the above, a paper outlet is formed between the output bottom surface, the output top surface and the two support parts along the length of the paper, and then the printed paper can be output from the paper outlet, and the lower transmitting antenna and the upper transmitting antenna are arranged on the upper and lower sides of the paper outlet respectively. When printing a flexible anti-metal RFID tag with a bottom metal layer, the RFID printed paper can be read and written through the upper transmitting antenna, and when printing a printing medium with a top metal layer, the RFID printed paper can be read and written through the lower transmitting antenna, and when printing ordinary RFID media, the upper transmitting antenna or the lower transmitting antenna can read and write the printed paper, thereby improving the adaptability to different printing media. Furthermore, the upper cover and the back cover can improve the installation stability of the transmitting antenna, and with the arrangement of the notch and the connecting groove, the upper wire can be easily connected to the control circuit board.

Claims

1. An antenna module capable of being equipped with dual RFID antennas, characterized in that: include: A shell, the shell comprising a lower shell, an upper shell and two supporting parts, the lower shell forming a lower accommodating chamber, the lower shell being provided with an output bottom surface at the top of the lower accommodating chamber, a lower antenna mounting groove being provided on the inner side of the output bottom surface, the two supporting parts being located at two ends of the output bottom surface based on the paper width direction, the supporting part being provided with a connecting groove running through it in the longitudinal direction, the upper shell being connected above the two supporting parts, the upper shell forming an upper accommodating chamber, the upper shell being provided with an output top surface at the bottom of the upper accommodating chamber, an upper antenna mounting groove being provided on the inner side of the output top surface, a paper output channel running through it in the paper length direction being formed between the output bottom surface, the output top surface and the two supporting parts, and the connecting groove being connected between the upper accommodating chamber and the lower accommodating chamber; A control circuit board, wherein the control circuit board is arranged in the lower accommodating cavity; A lower transmitting antenna, the lower transmitting antenna being installed in the lower antenna installation slot, and the lower transmitting antenna being connected to the control circuit board; The upper transmitting antenna is installed in the upper antenna installation groove, and the lower transmitting antenna is connected to the control circuit board through an upper wire, and the upper wire passes through the connecting groove.

2. The antenna module according to claim 1, characterized in that: The antenna module comprises an upper cover, and the upper cover covers the upper accommodating cavity.

3. The antenna module according to claim 2, characterized in that: The upper surface of the upper cover is provided with a ruler, and the ruler extends along the paper width direction.

4. The antenna module according to claim 2, characterized in that: The inner end surface of the upper cover is provided with a positioning rib, and the positioning rib is adjacent to the upper transmitting antenna.

5. The antenna module according to claim 4, characterized in that: The upper antenna installation groove has a positioning peripheral wall, the upper transmitting antenna is gap-matched with the positioning peripheral wall, the positioning peripheral wall is provided with a notch on one side close to the connecting groove, and the upper wire passes through the notch.

6. The antenna module according to any one of claims 1 to 5, characterized in that: The antenna module includes a back cover, and the back cover covers the back side of the lower accommodation cavity based on the paper length direction.

7. The antenna module according to claim 6, characterized in that: The lower antenna installation slot is provided with an insertion port at the rear side in the paper length direction, and the lower transmitting antenna is installed into the lower antenna installation slot from the insertion port; The rear cover is provided with a limit block at the upper portion, and the limit block is located at the insertion port and is adjacent to the lower transmitting antenna.

8. A thermal printer, comprising a rubber roller and a thermal sheet, wherein the thermal sheet and the rubber roller are opposite to each other and form a paper feeding channel, and a paper outlet is provided at the front end of the paper feeding channel, characterized in that: The thermal printer further comprises the antenna module as claimed in any one of claims 1 to 7, and the housing is arranged at the front side of the paper outlet.

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