NFC antenna welding structure and NFC antenna
By setting up a position avoidance port and observation area in the NFC antenna soldering structure, the short circuit problem and inconvenient detection caused by tin connection of adjacent pads during the welding process are solved, and convenient detection and high product yield are achieved.
Patent Information
- Application Number
- CN202421827161.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-30
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-07-30
AI Technical Summary
During the NFC antenna soldering process, the connection between adjacent pads causes short circuit problems, and the lower NFC structural parts are blocked and difficult to detect, and there is a problem of inconvenience in detection.
An NFC antenna soldering structure is designed, by setting a position avoidance port between the first pads and setting an observation area between the second pads, so that after welding, it is possible to visually detect whether there is tin connection in the observation area through the position avoidance port, avoiding the need for equipment detection.
It improves the convenience of welding inspection, reduces detection time, enhances product yield, and avoids short circuit problems caused by tin connection.
Smart Images
Figure CN222980772U_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the field of NFC antennas, and particularly to an NFC antenna welding structure and an NFC antenna. Background Art
[0002] The NFC antenna is a key component based on RFID radio frequency identification technology, and it plays a crucial role in the NFC (Near Field Communication) system. The main function of the NFC antenna is to transmit the NFC signal from the transmitting end to the receiving end, ensuring that two NFC devices can exchange data within a short distance.
[0003] During the production process, it is necessary to weld the pads of two sets of NFC structural components. As Figure 1 shown, the two sets of pads need to be overlapped with solder to tightly connect the upper and lower pads and ensure the stability of the circuit. However, during welding, there is a situation of solder bridging between adjacent pads in the NFC structural components. The solder connection between adjacent pads will cause a short circuit. Therefore, it is necessary to perform detection after soldering. Whether there is solder bridging between adjacent pads in the upper NFC structural component can be observed by visual inspection, while the lower NFC structural component is blocked by the upper NFC structural component and is not easily detected, and it needs to be detected by an X-RAY device, so there is a problem of inconvenient detection.
[0004] Therefore, there is an urgent need for an NFC antenna welding structure that is convenient for detection and has a high product yield. Utility Model Content
[0005] The purpose of the present disclosure is to overcome the deficiencies in the prior art and provide an NFC antenna welding structure and an NFC antenna that are convenient for detection and have a high product yield.
[0006] The purpose of the present disclosure is achieved through the following technical solutions:
[0007] An NFC antenna welding structure, comprising:
[0008] A first welding component and a second welding component, the first welding component is located above the second welding component, the first welding component includes a first base member and at least two first pads, the first pads are spaced apart on the first base member, and the second welding component includes a second base member and at least two
[0009] second pads, the second pads are spaced apart on the second base member,
[0010] Each of the first pads is stacked and welded with the corresponding second pad. The first base member is provided with at least one avoidance opening, which is located between two adjacent first pads. The second base member is provided with at least one observation area, which is located between two adjacent second pads. The avoidance openings and the observation areas are arranged in one-to-one correspondence.
[0011] In one embodiment, the number of the avoidance openings is multiple, and the multiple avoidance openings extend along the edge of the first base member.
[0012] In one embodiment, the multiple avoidance openings are of the same size.
[0013] In one embodiment, the multiple avoidance openings are of different sizes.
[0014] In one embodiment, the width of the avoidance opening is less than the width of the corresponding observation area.
[0015] In one embodiment, the width of the avoidance opening is equal to the width of the corresponding observation area.
[0016] In one embodiment, the length of the avoidance opening is greater than the length of the corresponding observation area.
[0017] In one embodiment, the length of the avoidance opening is equal to the length of the corresponding observation area.
[0018] In one embodiment, the avoidance opening is rectangular.
[0019] An NFC antenna includes the NFC antenna welding structure according to any one of the above embodiments.
[0020] Compared with the prior art, the present disclosure has at least the following advantages:
[0021] 1. For the above-mentioned NFC antenna welding structure, the first pads are arranged at intervals on the first base member, the second pads are arranged at intervals on the second base member, the observation area is located between two adjacent second pads, and the avoidance opening is located between two adjacent first pads. When the first pad is stacked and welded with the corresponding second pad, the avoidance opening just corresponds to the corresponding observation area. In this way, it is possible to visually check whether there is solder bridging in the corresponding observation area through the avoidance opening, that is, there is no need to detect by equipment, which improves the convenience of detection.
[0022] 2. For the above-mentioned NFC antenna welding structure, since the avoidance opening separates two adjacent first pads, there will be no solder bridging between the adjacent first pads after welding. And when it is visually checked through the avoidance opening that there is solder bridging in the corresponding observation area, the observation area with solder bridging can be directly repaired, thus improving the product yield. Brief Description of the Drawings
[0023] To more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present disclosure, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.
[0024] Figure 1 is a schematic structural diagram of an NFC antenna welding structure in the prior art;
[0025] Figure 2 is a schematic structural diagram of an NFC antenna welding structure according to an embodiment;
[0026] Figure 3 is Figure 2 another schematic structural diagram of the NFC antenna welding structure shown;
[0027] Figure 4 is Figure 2 a physical diagram of the NFC antenna welding structure shown. Detailed Description of the Embodiments
[0028] To facilitate the understanding of the present disclosure, the present disclosure will be described more comprehensively below with reference to the relevant drawings. The preferred embodiments of the present disclosure are shown in the drawings. However, the present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure content of the present disclosure understood more thoroughly and comprehensively.
[0029] It should be noted that when an element is referred to as "fixed to" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only embodiment.
[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present disclosure belongs. The terms used in the specification of the present disclosure herein are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.
[0031] The present disclosure provides an NFC antenna welding structure, which includes a first welding component and a second welding component. The first welding component is located above the second welding component. The first welding component includes a first base member and at least two first pads, and the first pads are spaced apart on the first base member. The second welding component includes a second base member and at least two second pads, and the second pads are spaced apart on the second base member. Each of the first pads is stacked and welded with the corresponding second pad. At least one avoidance opening is formed in the first base member, and the avoidance opening is located between two adjacent first pads. The second base member is provided with at least one observation area, and the observation area is located between two adjacent second pads. The avoidance opening and the observation area are arranged in one-to-one correspondence.
[0032] In the above NFC antenna welding structure, the first pads are spaced apart on the first base member, the second pads are spaced apart on the second base member, the observation area is located between two adjacent second pads, and the avoidance opening is located between two adjacent first pads. When the first pad is stacked and welded with the corresponding second pad, the avoidance opening just corresponds to the corresponding observation area. In this way, it can be visually observed through the avoidance opening whether there is solder bridging in the corresponding observation area, that is, it is not necessary to detect by equipment, which improves the convenience of detection. Since the avoidance opening separates two adjacent first pads, there will be no solder bridging between the adjacent first pads after welding. And when it is visually observed through the avoidance opening that there is solder bridging in the corresponding observation area, the observation area with solder bridging can be directly repaired, thus improving the product yield.
[0033] To better understand the technical solutions and beneficial effects of the present disclosure, the following further describes the present disclosure in detail with specific embodiments:
[0034] As Figure 2 and Figure 3 shown, an NFC antenna welding structure 10 in an embodiment includes a first welding component 100 and a second welding component 200. The first welding component 100 is located above the second welding component 200. The first welding component 100 includes a first base member 110 and at least two first pads 120, and the first pads 120 are spaced apart on the first base member 110. The second welding component 200 includes a second base member 210 and at least two second pads 220, and the second pads 220 are spaced apart on the second base member 210.
[0035] Further, each of the first pads 120 is stacked and welded to the corresponding second pad 220. The first base member 110 is provided with at least one relief opening 111, and the relief opening 111 is located between two adjacent first pads 120. The second base member 210 is provided with at least one observation area 211, and the observation area 211 is located between two adjacent second pads 220. The relief opening 111 and the observation area 211 are arranged in one-to-one correspondence.
[0036] In this embodiment, the first pad 120 and the corresponding second pad 220 are stacked and welded. Since solder needs to be added during welding, there may be a situation where solder bridges between adjacent first pads 120 or between adjacent second pads 220, which may lead to a short circuit problem. By providing a relief opening 111 between two adjacent first pads 120, the relief opening 111 cuts off the solder bridging path between two adjacent first pads 120. At the same time, after welding, the relief opening 111 and the observation area 211 are arranged in correspondence. The observation area 211 is the solder bridging path between two adjacent second pads 220. Whether there is solder bridging in the corresponding observation area 211 can be visually observed through the relief opening 111. If there is solder bridging in the observation area 211, the observation area 211 can be directly repaired through the relief opening 111.
[0037] For the above-mentioned NFC antenna welding structure 10, the first pads 120 are arranged at intervals on the first base member 110, the second pads 220 are arranged at intervals on the second base member 210, the observation area 211 is located between two adjacent second pads 220, and the relief opening 111 is located between two adjacent first pads 120. When the first pad 120 and the corresponding second pad 220 are stacked and welded, the relief opening 111 just corresponds to the corresponding observation area 211. In this way, whether there is solder bridging in the corresponding observation area 211 can be visually observed through the relief opening 111, that is, it is not necessary to detect through equipment, which improves the convenience of detection; since the relief opening 111 cuts off two adjacent first pads 120, there will be no solder bridging between adjacent first pads 120 after welding. And when it is visually observed through the relief opening 111 that there is solder bridging in the corresponding observation area 211, the observation area 211 with solder bridging can be directly repaired, which improves the product yield.
[0038] In another embodiment, both the observation area 211 and the relief opening 111 are hollow structures, that is, the observation area 211 can also be a through hole to completely avoid the solder bridging problem between adjacent pads.
[0039] Such as Figure 2 and Figure 3As shown, in one embodiment, the number of the relief openings 111 is multiple, and the multiple relief openings 111 are arranged along the edge of the first base member 110. In this embodiment, the number of the first pads 120 is multiple, the number of the second pads 220 is multiple, and a relief opening 111 is provided between every two adjacent first pads 120, and an observation area 211 is provided between every two adjacent second pads 220, that is, the number of the relief openings 111 and the observation areas 211 is both multiple, and the relief openings 111 and the observation areas 211 are arranged in one-to-one correspondence. Further, the multiple relief openings 111 are all arranged at the edge of the first base member 110, making the structure more flat and facilitating processing.
[0040] In one embodiment, the multiple relief openings 111 are of the same size. In this embodiment, the number of the second pads 220 is multiple, so that the number of the observation areas 211 is also multiple, and the distance between every two adjacent second pads 220 is consistent, so that the lengths and widths of the multiple observation areas 211 are consistent, and further the lengths and widths of the corresponding relief openings 111 are also consistent.
[0041] In one embodiment, the multiple relief openings 111 are of different sizes. In this embodiment, the distance between every two adjacent second pads 220 is inconsistent, so that the lengths and widths of the multiple observation areas 211 are inconsistent, and further the lengths and widths of the corresponding relief openings 111 are also inconsistent.
[0042] In one embodiment, the width of the relief opening 111 is smaller than the width of the corresponding observation area 211. It can be understood that the width of the relief opening 111 can be smaller than the width of the corresponding observation area 211, that is, to ensure that after the first pad 120 and the second pad 220 are stacked, it can be visually observed whether there is solder bridging in the middle area of the observation area 211 through the relief opening 111. If there is no solder bridging in the middle area of the observation area 211, it indicates that there is no solder bridging between two adjacent second pads 220.
[0043] In one embodiment, the width of the relief opening 111 is equal to the width of the corresponding observation area 211. In this embodiment, the width of the relief opening 111 is equal to the width of the corresponding observation area 211 so as to visually observe the complete observation area 211.
[0044] In one embodiment, the length of the relief opening 111 is greater than the length of the corresponding observation area 211. It can be understood that the length of the relief opening 111 is greater than the length of the corresponding observation area 211, so that it can be visually observed whether there is solder bridging in the area outside the observation area 211 between two adjacent second pads 220.
[0045] In one embodiment, the length of the avoidance opening 111 is equal to the length of the corresponding observation area 211. In this embodiment, the length of the avoidance opening 111 is equal to the length of the corresponding observation area 211, so as to make the structure of the first welding assembly 100 more compact.
[0046] As Figure 2 and Figure 3 shown, in one embodiment, the avoidance opening 111 is rectangular. It can be understood that the rectangular avoidance opening 111 provides a more complete visual angle for visual inspection of the observation area 211. Of course, in other embodiments, the avoidance opening 111 can also be arc-shaped or other irregular shapes.
[0047] This application also provides an NFC antenna, including the NFC antenna welding structure 10 described in any of the above embodiments.
[0048] Compared with the prior art, the present disclosure has at least the following advantages:
[0049] 1. For the above-mentioned NFC antenna welding structure 10, the first pads 120 are spaced apart on the first base member 110, the second pads 220 are spaced apart on the second base member 210, the observation area 211 is located between two adjacent second pads 220, and the avoidance opening 111 is located between two adjacent first pads 120. When the first pad 120 and the corresponding second pad 220 are stacked and welded, the avoidance opening 111 is just correspondingly arranged with the corresponding observation area 211. In this way, it is possible to visually check whether there is solder bridging in the corresponding observation area 211 through the avoidance opening 111, that is, there is no need to detect through equipment, which improves the convenience of detection.
[0050] 2. For the above-mentioned NFC antenna welding structure 10, since the avoidance opening 111 separates two adjacent first pads 120, there will be no solder bridging between the adjacent first pads 120 after welding. And when it is visually detected through the avoidance opening 111 that there is solder bridging in the corresponding observation area 211, the observation area 211 with solder bridging can be directly repaired, thus improving the product yield.
[0051] The above-described embodiments only represent several implementation manners of the present disclosure, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present disclosure, several deformations and improvements can still be made, and these all belong to the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure patent shall be subject to the appended claims.
Claims
1. An NFC antenna welding structure, comprising a first welding assembly and a second welding assembly, wherein the first welding assembly is located above the second welding assembly, the first welding assembly comprises a first substrate member and at least two first pads, the first pads are spaced apart from each other on the first substrate member, the second welding assembly comprises a second substrate member and at least two second pads, the second pads are spaced apart from each other on the second substrate member, characterized in that: Each of the first soldering pads is stacked and welded with the corresponding second soldering pad, the first substrate member is provided with at least one avoidance opening, the avoidance opening is located between two adjacent first soldering pads, the second substrate member is provided with at least one observation area, the observation area is located between two adjacent second soldering pads, and the avoidance opening and the observation area are arranged in a one-to-one correspondence.
2. The NFC antenna welding structure according to claim 1, characterized in that: There are multiple avoidance openings, and the multiple avoidance openings are extended along the edge of the first substrate member.
3. The NFC antenna welding structure according to claim 2, characterized in that: The sizes of the plurality of avoidance openings are the same.
4. The NFC antenna welding structure according to claim 2, characterized in that: The sizes of the plurality of avoidance openings are different.
5. The NFC antenna welding structure according to claim 1, characterized in that: The width of the avoidance opening is smaller than the width of the corresponding observation area.
6. The NFC antenna welding structure according to claim 1, characterized in that: The width of the avoidance opening is equal to the width of the corresponding observation area.
7. The NFC antenna welding structure according to claim 1, characterized in that: The length of the avoidance opening is greater than the length of the corresponding observation area.
8. The NFC antenna welding structure according to claim 1, characterized in that: The length of the avoidance opening is equal to the length of the corresponding observation area.
9. The NFC antenna welding structure according to claim 1, characterized in that: The avoidance opening is rectangular.
10. An NFC antenna, characterized in that: The NFC antenna welding structure comprises the NFC antenna welding structure according to any one of claims 1 to 9.