CN220856910U - NFC antenna and POS machine with NFC antenna - Google Patents

Abstract

The utility model discloses an NFC antenna and a POS machine with the NFC antenna. The first circuit is integrated on the substrate and is provided with a first interface and an interface group, the interface group comprises two second interfaces, and the two second interfaces of each interface group are respectively used for butting two ends of the second NFC cable. The first interface is used for docking one end of a first NFC cable, and one end, away from the first interface, of the first NFC cable is suitable for docking an external circuit. The utility model splits the original NFC circuit into a first circuit arranged on the substrate, and a first NFC cable and a second NFC cable which are detachably connected to the first circuit. During production, the substrate can be made large, the edge of the substrate is attached to the edge of the mounting station, and holes are formed in the mounting station, so that a second NFC cable is connected to a second interface on the substrate from the outside. Therefore, the NFC antenna provided by the utility model has larger manufactured area and better performance.

Description

NFC antenna and POS machine with NFC antenna

Technical Field

The utility model relates to the technical field of POS (point of sale) machines, in particular to an NFC antenna and a POS machine with the NFC antenna.

Background

With the rapid development of the mobile internet, the market of the intelligent POS machine which is an additional industry of mobile payment is rapidly vigorous while the payment demand of the mobile internet is vigorous. An important function of the POS machine is NFC function, and non-contact payment can be realized by using a bank card with an NFC chip. The NFC of the conventional POS machine has a single area, but as the POS machine is smaller, the NFC area is smaller and even needs to be shared with other areas, and the under-screen NFC technology is generated.

The card reading area of the under-screen NFC is below the screen, namely, the NFC antenna is below the screen, and the area of the NFC is required to be larger because the interference ratio of the screen to the NFC antenna is larger. And meanwhile, a main board is usually arranged below the screen, the NFC antenna is required to be far away from the main board as far as possible, and the NFC antenna and the main board are too close to each other, so that the interference of the ferrite shielding main board is also required. Based on the above requirements, conventional NFC antennas cannot meet the requirements in terms of performance and assembly mode.

Therefore, how to improve the technical defects existing in the prior art is a problem to be solved by the person skilled in the art.

Disclosure of utility model

The utility model aims to provide an NFC antenna and a POS machine with the NFC antenna, which can make the area of the NFC antenna as large as possible under the condition of unchanged installation space, and is closer to the overall appearance of the POS machine, so that the performance of the NFC antenna is effectively improved, a user can swipe a card conveniently, and meanwhile, the NFC antenna is more convenient to assemble.

The technical scheme provided by the utility model is as follows:

An NFC antenna comprising:

A substrate, a first NFC cable, and at least one second NFC cable;

The first circuit is integrated on the substrate and is provided with a first interface and at least one group of interface groups, the interface groups comprise two second interfaces, and the two second interfaces of each group of interface groups are respectively used for butt joint of two ends of the second NFC cable; and

The first interface is used for docking one end of the first NFC cable, and one end, away from the first interface, of the first NFC cable is suitable for docking an external circuit.

In some embodiments, the number of second NFC cables is two;

the first circuit comprises a first wire, a second wire and a third wire;

One end of the first wire and one end of the second wire are led out of the first interface together, one end of the first wire, which is far away from the first interface, is led out of the second interface, and one end of the second wire, which is far away from the first interface, is led out of the second interface; and

Both ends of the third wiring are led out of one second interface;

The second interface of the first wire and one second interface of the third wire together form a group of interface groups; the second interface of the second wire and the other second interface of the third wire form a group of interface groups together;

the two second NFC cables are respectively and electrically connected to the first circuit through the two interface groups.

In some embodiments, the first trace, the second trace, and the third trace are all disposed on a same end surface of the substrate; and

The first wires and the second wires are arranged at one side edge of the end face and are symmetrically distributed, and the third wires are arranged at one side edge of the end face away from the first wires and the second wires, so that the two second NFC cables are symmetrically distributed at two opposite sides of the substrate.

The utility model also provides a POS machine with the NFC antenna, which comprises:

a shell, a screen, a main board and the NFC antenna provided by any one of the above;

A cavity is formed in the shell and used for accommodating the main board, the first NFC cable and the second NFC cable;

The outer side wall of the shell is provided with a first mounting groove for mounting the screen, and the bottom of the first mounting groove is provided with a second mounting groove for mounting the substrate;

The second mounting groove is provided with a first avoidance hole which is communicated with the cavity, and one end of the first NFC cable penetrates through the first avoidance hole and is electrically connected with the first interface; the second circuit is integrated on the main board and is provided with a third interface, and one end of the first NFC cable, which is far away from the first interface, is electrically connected with the third interface; and

The second mounting groove is provided with a second avoidance hole which is communicated with the cavity, and the end part of the second NFC cable penetrates through the first avoidance hole and is electrically connected with the second interface.

In some embodiments, the first circuit, the first interface, and the second interface are all disposed on an end surface of the substrate facing the motherboard;

Or (b)

The first circuit is arranged on one end face, facing the screen, of the substrate;

The first interface and the second interface are both arranged on one end face, facing the main board, of the substrate.

In some embodiments, the number of the second NFC cables is two, and the second NFC cables are respectively located at two sides of the substrate in the width direction of the screen; and

And two side walls of the chamber in the width direction of the screen are provided with accommodating grooves in the areas corresponding to the second mounting grooves, so as to accommodate the second NFC cables.

In some embodiments, the third interface is disposed at an end surface of the motherboard remote from the substrate.

In some embodiments, a butt joint part extends from one side edge of the substrate, and the second mounting groove is provided with an insertion port;

The butt joint part is suitable for being inserted into the plug-in port, and glue is coated between the butt joint part and the plug-in port so as to fix the substrate in the second mounting groove.

In some embodiments, the plug interface is communicated with the cavity, and a ferrite is arranged at an end face of the butt joint part, which faces the main board; when the butt joint part is inserted into the plug-in port, the ferrite on the butt joint part enters the cavity through the plug-in port.

In some embodiments, a side of the chamber close to the second mounting groove is provided with a fixing column, and the main board is fixed on the fixing column; and

The end face of the fixing column is an inclined plane, so that the main board is obliquely arranged in the direction away from the substrate.

The utility model has the technical effects that:

1. In this patent, with the circuit of NFC antenna among the prior art, split is for locating the first circuit of base plate to and detachably connects in first NFC cable and the second NFC cable of first circuit. On the one hand, the first NFC cable can be connected to the first circuit through the first interface and the second NFC cable can be connected to the first circuit through the interface group, so that the plug is very convenient, the quick assembly of the NFC antenna is facilitated, and meanwhile, the follow-up daily maintenance and replacement of the NFC antenna are also facilitated. On the other hand, in the installation station of equidimension, compare in the NFC antenna of whole circuit direct integration on the base plate among the prior art, the area of the NFC antenna that this patent provided can be made bigger, the complete machine appearance of laminating POS machine more, and the recognition range of punching the card is bigger, more accurate. That is, during production, the substrate is made large, the edge of the substrate is attached to the edge of the mounting station, and then holes are formed in the mounting station, so that the second NFC cable is connected to the second interface on the substrate from the outside. It can be appreciated that the first NFC cable and the second NFC cable not directly integrated on the substrate can relatively easily avoid other parts in the POS machine, and prevent interference.

2. In the patent, the first interface and the second interface are arranged on the end face, facing the main board, of the substrate, so that the assembly of the first NFC cable and the second NFC cable is facilitated; meanwhile, the first circuit is arranged on one end face of the substrate, facing the screen, and the distance between the first circuit and the main board can be increased to a certain extent, so that the influence of the second circuit on the main board on the first circuit is reduced, and the performance of the NFC antenna is improved.

3. In this patent, the base plate butt joint portion is equipped with ferrite towards one end face of mainboard, and when butt joint portion inserted the interface, ferrite on the butt joint portion got into the cavity through the interface. At this time, the ferrite is located between the substrate and the main board, so that the interference of the second circuit on the main board to the NFC antenna can be shielded, and the performance of the NFC antenna is further improved.

4. In this patent, fix and support the mainboard through setting up the fixed column, simultaneously, the terminal surface of fixed column is the inclined plane, enables the mainboard and inclines to set up towards keeping away from the base plate direction, has further increased the interval between first circuit and the mainboard, has reduced the influence of the second circuit on the mainboard to the NFC antenna betterly to improve the performance of NFC antenna.

Drawings

The utility model is described in further detail below with reference to the attached drawings and detailed description:

fig. 1 is a schematic perspective view of an NFC antenna provided by the present utility model in a state;

fig. 2 is a schematic perspective view of an NFC antenna provided by the present utility model in another state;

Fig. 3 is a schematic perspective view of a POS machine with an NFC antenna according to the present utility model;

FIG. 4 is a schematic perspective view of a front shell in a state according to the present utility model;

Fig. 5 is a schematic perspective view of a front case and an NFC antenna provided in the present utility model in one state;

Fig. 6 is a schematic perspective view of a front case and an NFC antenna provided in the present utility model in another state;

Fig. 7 is a schematic perspective view of a front case in another state according to the present utility model;

fig. 8 is a cross-sectional view of a front housing and NFC antenna provided by the present utility model;

Fig. 9 is a schematic perspective view of a front case, an NFC antenna and a motherboard according to the present utility model.

Reference numerals illustrate:

100. An NFC antenna; 110. a substrate; 111. a first wiring; 112. a second wiring; 113. a third wiring; 114. a first interface; 115. a second interface; 116. a butt joint part; 1161. a ferrite; 120. a first NFC cable; 130. a second NFC cable;

200. A housing; 210. a chamber; 220. a front cover; 221. fixing the column; 2211. an inclined plane; 2212. a fastening hole; 222. a first mounting groove; 223. a second mounting groove; 2231. a first avoidance hole; 2232. a second avoidance hole; 2233. an interface; 2234. a receiving groove;

300. A screen;

400. A main board; 410. a third interface;

500. A fastener.

Detailed Description

In the following description, for purposes of explanation and not limitation, specific details are set forth such as the particular system architecture, techniques, etc., in order to provide a thorough understanding of the embodiments of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following description will explain the specific embodiments of the present utility model with reference to the accompanying drawings. It is evident that the drawings in the following description are only examples of the utility model, from which other drawings and other embodiments can be obtained by a person skilled in the art without inventive effort.

For simplicity of the drawing, only the parts relevant to the utility model are schematically shown in each drawing, and they do not represent the actual structure thereof as a product. Additionally, in order to simplify the drawing for ease of understanding, components having the same structure or function in some of the drawings are shown schematically with only one of them, or only one of them is labeled. Herein, "a" means not only "only this one" but also "more than one" case.

It should be further understood that the term "and/or" as used in the present specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.

In this context, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, unless explicitly stated or limited otherwise; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the embodiment shown in the drawings, indications of orientation (such as up, down, left, right, front and rear) are used to explain the structure and movement of the various components of the utility model are not absolute but relative. These descriptions are appropriate when the components are in the positions shown in the drawings. If the description of the location of these components changes, then the indication of these directions changes accordingly.

In addition, in the description of the present application, the terms "first," "second," and the like are used merely to distinguish between descriptions and are not to be construed as indicating or implying relative importance.

According to an embodiment of the present utility model, referring to fig. 1, 2 and 9, an NFC antenna 100 may specifically include a substrate 110, a first NFC cable 120 and at least one second NFC cable 130. The substrate 110 is integrated with a first circuit, and the first circuit has a first interface 114 and at least one interface group, wherein the interface group includes two second interfaces 115, and the two second interfaces 115 of each interface group are respectively used to dock two ends of the second NFC cable 130. The first interface 114 is configured to dock an end of the first NFC cable 120, and an end of the first NFC cable 120 remote from the first interface 114 is adapted to dock an external circuit.

In this embodiment, the circuit of the NFC antenna 100 in the prior art is split into a first circuit disposed on the substrate 110, and a first NFC cable 120 and a second NFC cable 130 detachably connected to the first circuit.

On the one hand, the first NFC cable 120 can be electrically connected to the first circuit through the first interface 114, and the second NFC cable 130 can be electrically connected to the first circuit through the interface group, so that the plugging is very convenient, which is beneficial to the rapid assembly of the NFC antenna 100, and meanwhile, is beneficial to the subsequent daily maintenance and replacement of the NFC antenna 100.

On the other hand, most existing POS devices use an under-screen NFC technology, where the NFC antenna 100 is located between the screen 300 and the motherboard 400, and the installation space of the NFC antenna 100 is limited, so that the area of the NFC antenna 100 is also reduced. The NFC antenna 100 provided in this embodiment can be made larger in area and more fit with the overall shape of the POS machine under the condition that the installation space is unchanged. Specifically, during production, the substrate 110 in this embodiment is first made as large as possible, so that its edge fits the edge of the mounting station. Then, holes are formed in the mounting station, so that the second NFC cable 130 can be connected to the second interface 115 on the substrate 110 from outside the mounting station. Of course, the size of the installation station of the NFC antenna 100 is limited by the structural arrangement of other parts in the POS machine, but the first NFC cable 120 and the second NFC cable 130 in this embodiment are in a cable shape, so that the flexibility is high, other parts in the POS machine can be avoided relatively easily, interference is prevented, and the space utilization is high. Wherein, an end of the first NFC cable 120 remote from the first interface 114 is used to dock a second circuit on the motherboard 400.

Therefore, the NFC antenna 100 provided in this embodiment not only is simple and quick to assemble, but also can reasonably utilize the space in the POS machine, so that the area of the NFC antenna 100 can be made as large as possible under the condition that the installation space is unchanged. At this time, the NFC field intensity of the NFC antenna 100 will also be correspondingly high, and the card swiping recognition range of the POS machine will also be larger, the card swiping will be more accurate, and the practicality will be strong.

Specifically, referring to fig. 1 and 2, the number of the second NFC cables 130 is two, and at this time, the first circuit includes the first wire 111, the second wire 112, and the third wire 113. A first interface 114 is led out from one end of the first wire 111 and one end of the second wire 112, a second interface 115 is led out from one end of the first wire 111 away from the first interface 114, and a second interface 115 is led out from one end of the second wire 112 away from the first interface 114. Meanwhile, two ends of the third wire 113 are led out of a second interface 115.

In the present embodiment, the second interface 115 of the first trace 111 and one second interface 115 of the third trace 113 together form a group of interface groups; in contrast, the second interface 115 of the second trace 112 and the other second interface 115 of the third trace 113 together form a group of interface groups. In this way, the two second NFC cables 130 can be electrically connected to the first circuit through the two sets of interface groups respectively.

Referring to fig. 1, fig. 2, and fig. 9, when the end of the first NFC cable 120 far from the first interface 114 is connected to the second circuit on the motherboard 400, the first wire 111, the second wire 112, the third wire 113, the first NFC cable 120, and the two second NFC cables 130 in this embodiment form a complete loop with the second circuit on the motherboard 400 to implement the operation of the NFC antenna 100.

The first trace 111, the second trace 112 and the third trace 113 are formed on the substrate 110 by copper plating, the first interface 114 is a vertical 4PIN wire-to-board connector, and the second interface 115 is a horizontal 2PIN wire-to-board connector. In contrast, the first NFC cable 120 is a four-wire NFC antenna 100 cable, with 4PIN connectors at two ends; the second NFC cable 130 is a two-wire NFC antenna 100 cable with 2PIN connectors at both ends.

Referring to fig. 1 and 2, preferably, the first trace 111, the second trace 112 and the third trace 113 are all disposed on the same end face of the substrate 110, the first trace 111 and the second trace 112 are disposed on one side edge of the end face and are symmetrically distributed, and the third trace 113 is disposed on one side edge of the end face away from the first trace 111 and the second trace 112.

At this time, the second interface 115 of the third wire 113 on the side of the first wire 111 and the second interface 115 of the first wire 111 form a group of interfaces; the second interface 115 of the third wire 113 on one side of the second wire 112 and the second interface 115 of the second wire 112 form a group of interfaces, so that the two second NFC cables 130 are symmetrically distributed on two opposite sides of the substrate 110.

It should be noted that, referring to fig. 1, 2, 5, 6 and 8, when the NFC antenna 100 is mounted on the POS device, two second NFC cables 130 should be respectively located on two sides of the substrate 110 in the width direction of the screen 300, so that two ends of the NFC antenna 100 in the width direction of the screen 300 can be as close to edges of the POS housing as possible, so as to reduce the influence of the screen 300 on the NFC antenna 100.

In general, referring to fig. 3 to 6 and 8, since the influence of the main board 400 on the NFC antenna 100 is greater than the influence of the screen 300 on the NFC antenna 100, the NFC antenna 100 and the main board 400 are more likely to be separated from each other during production, so that the NFC antenna 100 and the screen 300 are disposed in the same space. The substrate 110 is generally mounted by providing a first mounting groove 222 on the outer side wall of the POS device housing 200 for mounting the screen 300, and providing a second mounting groove 223 on the bottom of the first mounting groove 222. At this time, even if there is enough space to make the second mounting groove 223 large to enlarge the area of the NFC antenna 100, the width of the second mounting groove 223 does not exceed the width of the first mounting groove 222 in consideration of the assembly workability, which results in that the size of the NFC antenna 100 in the width direction of the screen 300 does not exceed the width of the screen 300.

By connecting the two second NFC cables 130 in the present embodiment to the first circuit from the second mounting groove 223, and positioning the two second NFC cables 130 on two sides of the substrate 110 in the width direction of the screen 300, the problem can be well solved, so that the size of the NFC antenna 100 in the width direction of the screen 300 can exceed the width of the screen 300, and the influence of the screen 300 on the NFC antenna 100 can be reduced while the area of the NFC antenna 100 is increased.

Of course, in practical production, only one second NFC cable 130 is provided to achieve the above effect, which is not limited herein, and it is understood that the two second NFC cables 130 symmetrically distributed are provided to increase the size of the NFC antenna 100 in the width direction of the screen 300 to the greatest extent, which is within the scope of the present utility model.

It should be noted that, referring to fig. 4 to 7, in actual production, the second mounting groove 223 is provided with a first escape hole 2231 and a second escape hole 2232 corresponding to the first port 114 and the second port 115, respectively.

Of course, in practical production, the structure of the NFC antenna 100 provided in the above embodiments may be applied to any other device involving off-screen NFC, such as a mobile phone and a smart watch, besides a POS device.

Referring to fig. 3 to 9, the present utility model further provides a POS machine with an NFC antenna 100, including a housing 200, a screen 300, a motherboard 400, and the NFC antenna 100 provided in any of the foregoing embodiments.

Specifically, a cavity 210 is formed inside the housing 200 for accommodating the motherboard 400, the first NFC cable 120, and the second NFC cable 130, and a first mounting groove 222 is provided on an outer sidewall of the housing 200 for mounting the screen 300. Wherein, the bottom of the first mounting groove 222 is provided with a second mounting groove 223, and the second mounting groove 223 is used for mounting the substrate 110. The second mounting groove 223 is provided with a first avoidance hole 2231, and is communicated with the cavity 210, and one end of the first NFC cable 120 passes through the first avoidance hole 2231 and is electrically connected with the first interface 114. At this time, a second circuit is integrated on the motherboard 400, the second circuit is provided with a third interface 410, and an end of the first NFC cable 120 far away from the first interface 114 is electrically connected to the third interface 410. In contrast, the second mounting groove 223 is provided with a second avoidance hole 2232, and is communicated with the cavity 210, and the end of the second NFC cable 130 passes through the first avoidance hole 2231 and is electrically connected with the second interface 115.

Specifically, the casing 200 of the POS machine includes a front cover 220 and a rear cover, where the front cover 220 has an open cavity 210, and the rear cover is disposed at the opening of the front cover 220 and is used for blocking the cavity 210. At this time, the first and second mounting grooves 222 and 223 are provided on a side of the front cover 220 remote from the rear cover.

In one embodiment, the first circuit, the first interface 114, and the second interface 115 are all disposed on an end surface of the substrate 110 facing the motherboard 400. The first interface 114 and the second interface 115 are disposed towards the motherboard 400, so that a user can directly connect the first NFC cable 120 and the second NFC cable 130 to the corresponding first interface 114 and second interface 115 from the opening side of the front cover 220 when assembling the NFC antenna 100, which is convenient to operate and simple in steps.

In a preferred embodiment, referring to fig. 5, 6 and 9, the first circuit is disposed on an end surface of the substrate 110 facing the screen 300, and the first interface 114 and the second interface 115 are both disposed on an end surface of the substrate 110 facing the motherboard 400.

In this embodiment, the first interface 114 and the second interface 115 are still disposed on an end face of the substrate 110 facing the motherboard 400, so as to facilitate assembly by a user; the first circuit is disposed on an end surface of the substrate 110 facing the screen 300, so that the distance between the first circuit and the motherboard 400 can be increased to a certain extent, thereby reducing the influence of the second circuit on the motherboard 400 on the first circuit and improving the performance of the NFC antenna 100.

In this embodiment, a via hole is first formed on the substrate 110, so that a circuit on the first circuit passes through the via hole, then the first interface 114, the second interface 115 and the third interface 410 are led out from the passing circuit, and the first interface 114, the second interface 115 and the third interface 410 are fixed on an end surface of the substrate 110 facing the motherboard 400 by gluing. Because the production technology is mature, the description is omitted herein, and the production technology is within the scope of the present utility model.

As a preference, referring to fig. 6 to 8, the number of the second NFC cables 130 is two, respectively located at both sides of the substrate 110 in the width direction of the screen 300. Meanwhile, both side walls of the chamber 210 in the width direction of the screen 300 are provided with receiving grooves 2234 corresponding to the regions of the second mounting grooves 223 for receiving the second NFC cable 130.

In the present embodiment, the number of the two second NFC cables 130 are respectively located at two sides of the substrate 110 in the width direction of the screen 300, so that the size of the NFC antenna 100 in the width direction of the screen 300 is no longer limited by the size of the second mounting groove 223 in the width direction of the screen 300. The size of the second mounting groove 223 in the width of the screen 300 is limited by the size of the first mounting groove 222 in the width of the screen 300, so when the size of the NFC antenna 100 in the width of the screen 300 is no longer limited by the size of the second mounting groove 223 in the width of the screen 300, the size of the NFC antenna 100 in the width direction of the screen 300 is also no longer limited by the size of the first mounting groove 222 in the width of the screen 300. Therefore, the size of the NFC antenna 100 in the width direction of the screen 300 can exceed the width of the screen 300, the area of the NFC antenna 100 is increased, and the influence of the screen 300 on the NFC antenna 100 is reduced, so that the POS machine has wider card swiping range and higher recognition accuracy.

Further, referring to fig. 9, the third interface 410 is disposed on an end surface of the main board 400 away from the substrate 110, that is, the third interface 410 is disposed on an end surface of the main board 400 facing the rear cover, so that a user can directly complete the assembly of the NFC antenna 100 and the connection between the NFC antenna 100 and the main board 400 at the opening of the front cover 220.

Specifically, referring to fig. 1, 2 and 4 to 7 and 9, a docking portion 116 extends from one side edge of the substrate 110, and the second mounting groove 223 is provided with a socket 2233. The docking portion 116 is adapted to be inserted into the mating opening 2233, and glue is applied between the docking portion 116 and the mating opening 2233 to fix the substrate 110 to the second mounting groove 223.

As a preferred option, the plug-in interface 2233 is disposed at one end of the second mounting groove 223 along the length direction of the screen 300, at this time, part of the circuit on the first circuit may be laid along the edge of the docking portion 116, so as to further increase the area of the NFC antenna 100, thereby improving the field intensity of NFC, and meanwhile, the card swiping recognition range of the POS machine is also larger, and the card swiping is more accurate, sensitive and practical.

Further, referring to fig. 4 to 7 and 9, the plug-in interface 2233 is disposed at one end of the second mounting groove 223, which is close to the front edge of the front shell, in the length direction of the screen 300, so that the area of the NFC antenna 100 is increased, and meanwhile, the circuit on the docking portion 116 is further close to the overall appearance of the POS machine compared with the screen 300, thereby further reducing the influence of the screen 300 on the NFC antenna 100, and enabling the POS machine to have a wider swipeable card range and higher recognition accuracy and sensitivity.

Further, the plug 2233 is connected to the cavity 210, and a ferrite 1161 is disposed at an end surface of the docking portion 116 facing the motherboard 400. When docking portion 116 is inserted into interface 2233, ferrite 1161 on docking portion 116 enters chamber 210 via interface 2233. At this time, the ferrite 1161 is located between the substrate 110 and the motherboard 400, so as to shield the interference of the second circuit on the motherboard 400 on the NFC antenna 100, thereby further improving the performance of the NFC antenna 100.

Specifically, in fig. 6 to 9, the chamber 210 is provided at one side near the second mounting groove 223, and the fixing post 221 is provided at a region corresponding to the second mounting groove 223, and the main board 400 is fixed to the fixing post 221. Specifically, the fixing post 221 is provided with a fastening hole 2212, and the main board 400 is also provided with a fastening hole 2212, and the fastening member 500 sequentially passes through the main board 400 and the fastening hole 2212 on the fixing post 221 to lock the main board 400 in the chamber 210. The end surfaces of the fixing posts 221 are inclined surfaces 2211, so that the main board 400 is inclined away from the substrate 110.

In this embodiment, the fixing post 221 is provided to fix the motherboard 400, so that the motherboard 400 and the NFC antenna 100 can be separated by a distance, thereby reducing the influence of the second circuit on the motherboard 400 on the NFC antenna 100, and improving the performance of the NFC antenna 100.

Because the NFC antenna 100 occupies only a part of space in the length direction of the POS machine, in the embodiment, the end surface of the fixing post 221 is set to be an inclined surface 2211, so that the fixing post 221 only supports one end of the main board 400 close to the NFC antenna 100, and a gap exists between the main board 400 and the NFC antenna 100; and the main board 400 is far away from one end of the NFC antenna 100, and has no support of the fixing post 221, and is inclined towards the screen 300, so that the structure is reasonable.

In the POS machine provided in the above embodiments, the NFC antenna 100 therein may be as close to the top and the left and right sides of the overall appearance of the POS machine as possible, so that the influence of the screen 300 on the NFC antenna 100 is reduced to the greatest extent while the area of the NFC antenna 100 is maximized; in addition, the NFC antenna 100 is also disposed as far away from the motherboard 400 as possible in the thickness direction, and the ferrite 1161 thereon can also shield the interference on the motherboard 400, so as to reduce the influence of the motherboard 400 on the NFC antenna 100 to the greatest extent. Moreover, the NFC antenna 100 of the POS machine provided in the above embodiments is very convenient to assemble, and meets the performance requirement of the current POS machine on the NFC antenna 100.

Specifically, the user may apply glue to the docking portion 116 of the NFC antenna 100 or the socket 2233 of the front cover 220, and then insert the docking portion 116 of the NFC antenna 100 into the socket 2233, thereby fixing the NFC antenna 100 in the second mounting groove 223. Next, the first NFC cable 120 and the second NFC cable 130 are respectively connected to the corresponding first interface 114 and second interface 115 from the side of the front cover 220, and the second NFC cable 130 is placed in the accommodating groove 2234. After that, the main board 400 is locked to the fixing post 221 by using the fastener 500, and the end of the first NFC cable 120 far from the first interface 114 is connected to the third interface 410 on the main board 400. Then, the rear cover is covered and fixed. Finally, the screen 300 is glued into the first mounting slot 222, thus completing the assembly of the entire POS machine.

In the foregoing embodiments, the descriptions of the embodiments are focused on, and the parts of a certain embodiment that are not described or depicted in detail may be referred to in the related descriptions of other embodiments.

It should be noted that the above embodiments can be freely combined as needed. The foregoing is merely a preferred embodiment of the present utility model and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present utility model, which are intended to be comprehended within the scope of the present utility model.

Claims (10)

1. An NFC antenna, comprising:

A substrate, a first NFC cable, and at least one second NFC cable;

The first circuit is integrated on the substrate and is provided with a first interface and at least one group of interface groups, the interface groups comprise two second interfaces, and the two second interfaces of each group of interface groups are respectively used for butt joint of two ends of the second NFC cable; and

The first interface is used for docking one end of the first NFC cable, and one end, away from the first interface, of the first NFC cable is suitable for docking an external circuit.

2. An NFC antenna as claimed in claim 1 wherein,

The number of the second NFC cables is two;

the first circuit comprises a first wire, a second wire and a third wire;

One end of the first wire and one end of the second wire are led out of the first interface together, one end of the first wire, which is far away from the first interface, is led out of the second interface, and one end of the second wire, which is far away from the first interface, is led out of the second interface; and

Both ends of the third wiring are led out of one second interface;

The second interface of the first wire and one second interface of the third wire together form a group of interface groups; the second interface of the second wire and the other second interface of the third wire form a group of interface groups together;

the two second NFC cables are respectively and electrically connected to the first circuit through the two interface groups.

3. An NFC antenna as claimed in claim 2 wherein,

The first wire, the second wire and the third wire are all arranged on the same end face of the substrate; and

The first wires and the second wires are arranged at one side edge of the end face and are symmetrically distributed, and the third wires are arranged at one side edge of the end face away from the first wires and the second wires, so that the two second NFC cables are symmetrically distributed at two opposite sides of the substrate.

4. A POS machine having an NFC antenna, comprising:

a housing, a screen, a motherboard, and the NFC antenna of any of claims 1-3;

A cavity is formed in the shell and used for accommodating the main board, the first NFC cable and the second NFC cable;

The outer side wall of the shell is provided with a first mounting groove for mounting the screen, and the bottom of the first mounting groove is provided with a second mounting groove for mounting the substrate;

The second mounting groove is provided with a first avoidance hole which is communicated with the cavity, and one end of the first NFC cable penetrates through the first avoidance hole and is electrically connected with the first interface; the second circuit is integrated on the main board and is provided with a third interface, and one end of the first NFC cable, which is far away from the first interface, is electrically connected with the third interface; and

The second mounting groove is provided with a second avoidance hole which is communicated with the cavity, and the end part of the second NFC cable penetrates through the first avoidance hole and is electrically connected with the second interface.

5. The POS machine with NFC antenna as claimed in claim 4, wherein,

The first circuit, the first interface and the second interface are all arranged on one end face, facing the main board, of the substrate;

Or (b)

The first circuit is arranged on one end face, facing the screen, of the substrate;

The first interface and the second interface are both arranged on one end face, facing the main board, of the substrate.

6. The POS machine with NFC antenna as claimed in claim 4, wherein,

The number of the second NFC cables is two, and the second NFC cables are respectively positioned at two sides of the substrate in the width direction of the screen; and

And two side walls of the chamber in the width direction of the screen are provided with accommodating grooves in the areas corresponding to the second mounting grooves, so as to accommodate the second NFC cables.

7. The POS with NFC antenna according to any one of claims 4-6, wherein,

The third interface is arranged on one end face, far away from the substrate, of the main board.

8. The POS with NFC antenna according to any one of claims 4-6, wherein,

A butt joint part extends from one side edge of the substrate, and the second mounting groove is provided with an inserting port;

The butt joint part is suitable for being inserted into the plug-in port, and glue is coated between the butt joint part and the plug-in port so as to fix the substrate in the second mounting groove.

9. The POS machine with NFC antenna of claim 8, wherein,

The plug-in port is communicated with the cavity, and ferrite is arranged on one end face, facing the main board, of the butt joint part; when the butt joint part is inserted into the plug-in port, the ferrite on the butt joint part enters the cavity through the plug-in port.

10. The POS with NFC antenna according to any one of claims 4-6, wherein,

The cavity is close to one side of the second mounting groove, a fixing column is arranged in a region corresponding to the second mounting groove, and the main board is fixed on the fixing column; and

The end face of the fixing column is an inclined plane, so that the main board is obliquely arranged in the direction away from the substrate.