NFC antenna structure for cambered surface installation and POSS machine

Abstract

The utility model provides an NFC antenna structure for cambered surface installation and a POSS machine. The NFC antenna structure for cambered surface installation comprises an FPC assembly and ferrite, the FPC assembly comprises a first FPC body and a second FPC body, the first FPC body is fixedly connected with the second FPC body, the first FPC body comprises a first straight area, a first cambered surface area, a second straight area and a second cambered surface area which are sequentially connected end to end, and the ferrite is arranged in the first straight area. The ferrite comprises a first ferrite unit and a second ferrite unit, the first ferrite unit is adhered to the first straight area, and the second ferrite unit is adhered to the second straight area. According to the electronic equipment, the sectional design of the ferrite is adopted, and the ferrite is not adhered to the first cambered surface area and the second cambered surface area, so that the problem of fragmentation of the ferrite caused by bending is avoided, and the signal interference resisting effect of the electronic equipment is relatively good.

Description

Technical Field

[0001] The present disclosure relates to the technical field of NFC antennas, and in particular to an NFC antenna structure for arc surface installation and a POSS machine. Background Art

[0002] Near Field Communication (NFC) technology is a short-range wireless communication technology. Its working principle is based on radio frequency identification (RFID) technology, which enables devices to exchange data within a short distance (usually a few centimeters). Since the advent of NFC technology in the early 21st century, its application in mobile devices, payment systems, access control, electronic ticketing and other fields has become increasingly widespread. NFC is mainly composed of FPC (flexible circuit board) and ferrite. FPC mainly realizes NFC electrical properties (such as capacitance, inductance, impedance, etc.) through different lines. Ferrite plays the role of magnetic shielding and magnetic conduction and resistance reduction in NFC, that is, it improves the antenna coupling coefficient, improves the magnetoelectric conversion rate, reduces the coil resistance, and prevents the generation of eddy currents and signal interference.

[0003] For example, Chinese patent application number CN201820962526.1 discloses an NFC antenna structure, including a ferrite component and an FPC component stacked in sequence, the ferrite component including a first adhesive layer, a ferrite layer, and a second adhesive layer stacked in sequence, and the FPC component is located on a side of the second adhesive layer away from the ferrite layer.

[0004] However, the structural design of the above NFC antenna structure has the following problems during use:

[0005] The ferrite layer of the NFC antenna structure is bonded to the FPC assembly via a second adhesive layer to secure the ferrite layer to the FPC assembly. The NFC antenna structure is suitable for attachment to a flat surface of a product. However, for terminal products such as POSS machines, which are large and have significant thickness variations, the internal area reserved for NFC attachment is often curved. Due to its structural characteristics, the ferrite cannot be excessively bent, otherwise it will cause the ferrite to break or crack.

[0006] Therefore, there is an urgent need for an NFC antenna structure that can avoid ferrite fragmentation and has better anti-signal interference effect. Utility Model Content

[0007] The purpose of the present disclosure is to overcome the shortcomings of the prior art and provide an NFC antenna structure for arc surface installation and a POSS machine that can avoid ferrite fragmentation and have good anti-signal interference effect.

[0008] The purpose of this disclosure is achieved through the following technical solutions:

[0009] An NFC antenna structure for curved surface installation, comprising:

[0010] It includes an FPC component and a ferrite, the FPC component includes a first FPC body and a second FPC body, the first FPC body is fixedly connected to the second FPC body, the first FPC body includes a first straight area, a first curved area, a second straight area and a second curved area connected end to end in sequence, the ferrite includes a first ferrite unit and a second ferrite unit, the first ferrite unit is bonded to the first straight area, and the second ferrite unit is bonded to the second straight area.

[0011] In one embodiment, a first positioning hole is formed in the first arc surface area, and the first positioning hole is used for the limiting column to pass through.

[0012] In one embodiment, a second positioning hole is formed in the second arc surface area, and the second positioning hole is used for the limiting column to pass through.

[0013] In one embodiment, there are multiple first ferrite units, and the multiple first ferrite units are arranged at intervals in the first straight area.

[0014] In one embodiment, the NFC antenna structure further includes a positioning film, wherein the positioning film is bonded to the first ferrite unit and the second ferrite unit respectively, and the first ferrite unit and the second ferrite unit are located on the same side of the positioning film.

[0015] In one embodiment, the positioning film is provided with a third positioning hole, and the third positioning hole is used for the limiting column to pass through.

[0016] In one embodiment, the second FPC body is provided with a position-avoiding hole.

[0017] In one embodiment, the first FPC body and the second FPC body are an integrally formed structure.

[0018] A POSS machine includes the NFC antenna structure for arc surface installation described in any one of the above embodiments.

[0019] Compared with the prior art, the present disclosure has at least the following advantages:

[0020] The above-mentioned NFC antenna structure for arc surface installation has a first FPC body including a first straight area, a first arc surface area, a second straight area and a second arc surface area connected end to end in sequence. The ferrite includes a first ferrite unit and a second ferrite unit. The first ferrite unit is bonded to the first straight area, and the second ferrite unit is bonded to the second straight area. When the first arc surface area and the second arc surface area are installed in an electronic device, the curvature of the bending is relatively large. That is, through the segmented design of the ferrite, and the first arc surface area and the second arc surface area are not bonded with ferrite, the problem of ferrite fragmentation caused by bending is avoided, thereby making the electronic device more resistant to signal interference. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present disclosure and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 This is a schematic structural diagram of an NFC antenna structure for curved surface installation according to one embodiment;

[0023] Figure 2 for Figure 1 A schematic structural diagram of an FPC assembly for an NFC antenna structure mounted on a curved surface is shown;

[0024] Figure 3 for Figure 1 Another structural schematic diagram of an NFC antenna structure for curved surface installation is shown. DETAILED DESCRIPTION

[0025] To facilitate understanding of the present disclosure, a more comprehensive description of the present disclosure will be provided below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present disclosure. However, the present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the disclosure.

[0026] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this disclosure pertains. The terms used herein in the specification of this disclosure are intended only to describe specific embodiments and are not intended to limit this disclosure. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] The present disclosure provides an NFC antenna structure for curved surface installation, including an FPC assembly and a ferrite. The FPC assembly includes a first FPC body and a second FPC body, the first FPC body and the second FPC body are fixedly connected, the first FPC body includes a first straight area, a first curved surface area, a second straight area, and a second curved surface area connected end to end in sequence, and the ferrite includes a first ferrite unit and a second ferrite unit, the first ferrite unit is bonded to the first straight area, and the second ferrite unit is bonded to the second straight area.

[0029] The above-mentioned NFC antenna structure for arc surface installation has a first FPC body including a first straight area, a first arc surface area, a second straight area and a second arc surface area connected end to end in sequence. The ferrite includes a first ferrite unit and a second ferrite unit. The first ferrite unit is bonded to the first straight area, and the second ferrite unit is bonded to the second straight area. When the first arc surface area and the second arc surface area are installed in an electronic device, the curvature of the bending is relatively large. That is, through the segmented design of the ferrite, and the first arc surface area and the second arc surface area are not bonded with ferrite, the problem of ferrite fragmentation caused by bending is avoided, thereby making the electronic device more resistant to signal interference.

[0030] In order to better understand the technical solutions and beneficial effects of the present disclosure, the present disclosure is further described in detail below with reference to specific embodiments:

[0031] like Figures 1 to 3 As shown, an NFC antenna structure 10 for curved surface mounting in one embodiment includes an FPC assembly 100 and a ferrite 200. The FPC assembly 100 includes a first FPC body 120 and a second FPC body 110. The first FPC body 120 is fixedly connected to the second FPC body 110. The first FPC body 120 includes a first straight area 121, a first curved surface area 122, a second straight area 123, and a second curved surface area 124 connected end to end. The ferrite 200 includes a first ferrite unit 210 and a second ferrite unit 220. The first ferrite unit 210 is bonded to the first straight area 121, and the second ferrite unit 220 is bonded to the second straight area 123.

[0032] In this embodiment, the first FPC body 120 and the second FPC body 110 are integrated with a circuit layer, and the main functional area of ​​the NFC antenna structure is located in the first FPC body 120. Therefore, a ferrite 200 needs to be attached to the first FPC body 120 to achieve anti-signal interference and shielding effects. Furthermore, the first FPC body 120 includes a first straight area 121, a first curved area 122, a second straight area 123 and a second curved area 124 connected end to end in sequence. The first curved area 122 and the second curved area 124 have a larger curvature when the NFC antenna structure is installed on the electronic device. By designing the ferrite 200 in a segmented manner, that is, the first ferrite unit 210 is bonded to the first straight area 121, the second ferrite unit 220 is bonded to the second straight area 123, and the ferrite 200 is not provided in the first curved area 122 and the second curved area 124. While ensuring the anti-signal interference effect of the first FPC body 120, it can also prevent the ferrite 200 from being broken.

[0033] In the above-mentioned NFC antenna structure 10 for curved surface installation, the first FPC body 120 includes a first straight area 121, a first curved area 122, a second straight area 123 and a second curved area 124 connected end to end in sequence. The ferrite 200 includes a first ferrite unit 210 and a second ferrite unit 220. The first ferrite unit 210 is bonded to the first straight area 121, and the second ferrite unit 220 is bonded to the second straight area 123. When the first curved area 122 and the second curved area 124 are installed in an electronic device, the curvature of the bending is relatively large. That is, the ferrite 200 is designed in a segmented manner, and the first curved area 122 and the second curved area 124 are not bonded with the ferrite 200. This avoids the problem of the ferrite 200 being broken due to bending, thereby making the electronic device more resistant to signal interference.

[0034] like Figure 1 and Figure 2 As shown, in one embodiment, the first curved surface area 122 defines a first positioning hole 122a for a limiting post to pass through. It is understood that the first positioning hole 122a serves to position the first FPC body 120 so that when the first FPC body 120 is attached to the ferrite 200, the limiting post of the attachment device passes through the first positioning hole 122a, thereby positioning the first FPC body 120 and preventing it from shifting.

[0035] like Figure 1 and Figure 2As shown, in one embodiment, the second curved surface area 124 defines a second positioning hole 124a for a retaining post to pass through. It is understood that the second positioning hole 124a serves a positioning function, enabling the retaining post of the bonding device to pass through the second positioning hole 124a when the first FPC body 120 is attached to the ferrite 200, thereby positioning the first FPC body 120 and preventing displacement. Furthermore, the first positioning hole 122a and the second positioning hole 124a work together to better position the first FPC body 120.

[0036] like Figure 1 and Figure 3 As shown, in one embodiment, there are multiple first ferrite units 210, and the multiple first ferrite units 210 are spaced apart in the first straight area 121. It can be understood that since the area of ​​the first straight area 121 is large, that is, the first straight area 121 has more circuit layers, by bonding multiple first ferrite units 210 in the first straight area 121, the first straight area 121 has a better anti-signal interference effect.

[0037] like Figure 3 As shown, in one embodiment, the NFC antenna structure further includes a positioning film 300, and the positioning film 300 is respectively bonded to the first ferrite unit 210 and the second ferrite unit 220, and the first ferrite unit 210 and the second ferrite unit 220 are located on the same side of the positioning film 300.

[0038] It can be understood that when bonding the first ferrite unit 210 and the second ferrite unit 220 to the first FPC body 120, the first ferrite unit 210 and the second ferrite unit 220 are first attached to the positioning film 300, and then the positioning film 300 is positioned and aligned with the first FPC body 120 so that the first ferrite unit 210 is bonded to the first straight area 121 and the second ferrite unit 220 is bonded to the second straight area 123. This makes the positions of the first ferrite unit 210 and the second ferrite unit 220 bonded to the first FPC body 120 more precise, and also eliminates the need to align the first ferrite unit 210 and the second ferrite unit 220 one by one with the first FPC body 120, thereby improving production efficiency. Furthermore, after the first ferrite unit 210 is attached to the first straight area 121 and the second ferrite unit 220 is attached to the second straight area 123, the positioning film 300 is torn off.

[0039] like Figure 3As shown, in one embodiment, the positioning film 300 is provided with a third positioning hole 310 for a limiting post to pass through. In this embodiment, there are two third positioning holes 310, one corresponding to the first positioning hole 122a and the other corresponding to the second positioning hole 124a, so that the limiting post can pass through in sequence, thereby positioning the first ferrite unit 210 and the second ferrite unit 220 on the positioning film 300 on the first FPC body 120.

[0040] like Figure 2 As shown, in one embodiment, the second FPC body 110 is provided with a position-avoiding hole 111. It is understood that the position-avoiding hole 111 is used for the positioning post of the device to pass through so as to position the first FPC body 120 and the second FPC body 110 when they are attached to the device.

[0041] In one embodiment, the first FPC body 120 and the second FPC body 110 are integrally formed. In this embodiment, the first FPC body 120 and the second FPC body 110 are integrally formed by injection molding.

[0042] The present application also provides a POSS machine, comprising the NFC antenna structure 10 for arc surface installation described in any of the above embodiments.

[0043] Compared with the prior art, the present disclosure has at least the following advantages:

[0044] In the above-mentioned NFC antenna structure 10 for curved surface installation, the first FPC body 120 includes a first straight area 121, a first curved area 122, a second straight area 123 and a second curved area 124 connected end to end in sequence. The ferrite 200 includes a first ferrite unit 210 and a second ferrite unit 220. The first ferrite unit 210 is bonded to the first straight area 121, and the second ferrite unit 220 is bonded to the second straight area 123. When the first curved area 122 and the second curved area 124 are installed in an electronic device, the curvature of the bending is relatively large. That is, the ferrite 200 is designed in a segmented manner, and the first curved area 122 and the second curved area 124 are not bonded with the ferrite 200. This avoids the problem of the ferrite 200 being broken due to bending, thereby making the electronic device more resistant to signal interference.

[0045] The above-described embodiments merely represent several implementation methods of the present disclosure. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person of ordinary skill in the art could make various modifications and improvements without departing from the scope of the present disclosure, all of which fall within the scope of protection of the present disclosure. Therefore, the scope of protection of the present patent shall be determined by the appended claims.

Claims

1. An NFC antenna structure for curved surface installation, comprising an FPC component and a ferrite, characterized in that: The FPC assembly includes a first FPC body and a second FPC body, the first FPC body is fixedly connected to the second FPC body, the first FPC body includes a first straight area, a first curved area, a second straight area and a second curved area connected end to end in sequence, the ferrite includes a first ferrite unit and a second ferrite unit, the first ferrite unit is bonded to the first straight area, and the second ferrite unit is bonded to the second straight area.

2. The NFC antenna structure for curved surface installation according to claim 1, characterized in that: The first arc surface area is provided with a first positioning hole, and the first positioning hole is used for the limiting column to pass through.

3. The NFC antenna structure for curved surface installation according to claim 1, characterized in that: The second arc surface area is provided with a second positioning hole, and the second positioning hole is used for the limiting column to pass through.

4. The NFC antenna structure for curved surface installation according to claim 1, characterized in that: There are a plurality of the first ferrite units, and the plurality of the first ferrite units are arranged at intervals in the first straight region.

5. The NFC antenna structure for curved surface installation according to claim 1, characterized in that: The NFC antenna structure further includes a positioning film, the positioning film is bonded to the first ferrite unit and the second ferrite unit respectively, and the first ferrite unit and the second ferrite unit are located on the same side of the positioning film.

6. The NFC antenna structure for curved surface installation according to claim 5, characterized in that: The positioning film is provided with a third positioning hole, and the third positioning hole is used for the limiting column to pass through.

7. The NFC antenna structure for curved surface installation according to claim 1, characterized in that: The second FPC body is provided with a position avoidance hole.

8. The NFC antenna structure for curved surface installation according to claim 1, characterized in that: The first FPC body and the second FPC body are an integrally formed structure.

9. A POSS machine, characterized in that: An NFC antenna structure for curved surface installation comprising any one of claims 1 to 8.

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