Bluetooth chip shielding cover structure against electromagnetic interference

Abstract

The utility model discloses a kind of anti-electromagnetic interference's bluetooth chip shield structure, including bottom plate, buckle seat, shield shell, bluetooth chip, the shield shell is provided with bluetooth chip, the shield shell lower end buckle is connected on buckle seat, and the buckle seat is fixedly connected on the bottom plate upper end.The utility model aims at providing a kind of bluetooth chip shield structure which is convenient to disassemble and assemble and structure stable, improves the heat dissipation, and shielding effect is good.

Description

Technical Field

[0001] This utility model relates to the field of electronic product technology, specifically to a Bluetooth chip shielding structure that resists electromagnetic interference. Background Technology

[0002] With the rapid development of the Internet of Things (IoT), wearable devices, and portable electronic products, Bluetooth technology has been widely used due to its short-range and low-power characteristics. As the communication core of these devices, the Bluetooth chip generates high-frequency electromagnetic signals during operation and is highly susceptible to interference from complex external electromagnetic environments. This electromagnetic interference (EMI) can severely degrade the transmission quality of Bluetooth signals, leading to unstable connections, data packet loss, and even system malfunctions.

[0003] To ensure the stable operation of Bluetooth chips, electromagnetic shielding is typically required. Traditional shielding covers are mostly made of metal and are directly fixed to the circuit board (PCB) via soldering or surface mount technology (SMT) to form a closed cavity that isolates the chip from the external electromagnetic environment. However, this traditional structure has many drawbacks: First, once a soldered or permanently fixed shielding cover is encapsulated, it is difficult to open. If it is necessary to debug, test, or replace the internal chip, the operation is extremely inconvenient and may even damage the chip or PCB circuitry. Second, Bluetooth chips generate heat during operation, and the heat dissipation design of traditional shielding covers is often insufficient. Heat accumulation can lead to an increase in the chip junction temperature, which in turn can cause performance throttling or a decrease in reliability. Third, shielding covers fixed only by solder points have limited mechanical connection strength. When the device is subjected to vibration or impact, the solder points are prone to cracking, causing the shielding cover to loosen, compromising the integrity of the shielding cavity, and significantly reducing the electromagnetic shielding effectiveness (SE).

[0004] To address the issue of detachability, some shielding cover structures using snap-fit ​​connections have emerged on the market. However, simple snap-fit ​​designs often suffer from insufficient locking force and unreliable contact, making them prone to loosening under vibration, which also affects the shielding effect. Utility Model Content

[0005] In view of the above-mentioned shortcomings in the existing technology, the purpose of this utility model is to provide a Bluetooth chip shielding cover structure that is easy to disassemble and assemble, has a stable structure, improves heat dissipation, and has a good shielding effect.

[0006] The technical solution adopted by this utility model to achieve the above-mentioned objectives is: a Bluetooth chip shielding cover structure for electromagnetic interference resistance, including a base plate, a snap-fit ​​base, a shielding cover, and a Bluetooth chip. The Bluetooth chip is disposed inside the shielding cover. The lower end of the shielding cover is snap-fitted to the snap-fit ​​base, and the snap-fit ​​base is fixedly connected to the upper end of the base plate. The base plate serves as the mounting foundation for the entire structure, and its surface is provided with integrated circuits connected to the pins of the Bluetooth chip. The snap-fit ​​base is fixed to the base plate and serves as the connection foundation. It is firmly connected to the lower end of the shielding cover through snap-fit ​​and locking mechanisms. The shielding cover covers the Bluetooth chip, forming a sealed cavity to provide electromagnetic shielding.

[0007] The buckle seat includes a buckle ring, a slot ring, a locking member, and a locking tongue. The slot ring is fixedly connected to the inner edge of the buckle ring. The slot ring is inserted into the lower opening of the shielding cover. Locking members are respectively provided on the front and rear sides of the slot ring and the buckle ring. The shielding cover has a matching groove. A locking tongue is fixedly connected to the center of the groove. The locking member is fitted into the groove, and the locking tongue is inserted into the center of the locking member.

[0008] In the above technical solution, latches are fixedly connected to the buckle rings on the left and right sides of the slot ring, and the outer wall of the corresponding side of the shield is provided with a slot, and the ends of the latches are respectively snapped into the slots.

[0009] In the above technical solution, the locking component includes a slot plate, a threaded rod, and a knob block. The slot plate is fixedly connected between the slot ring and the buckle ring. A retaining groove is provided at the upper end of the slot plate. The groove openings on both sides of the shielding cover are respectively fitted and connected to the slot plate, and one edge of the groove opening is fitted and connected to the retaining groove. A lock hole is provided in the middle of the retaining groove. The lock tongue is inserted and connected to the lock hole. A through hole is passed through the middle of the lock tongue. A threaded hole is passed through the slot plate opposite to the through hole. The threaded rod is threaded and connected to the threaded hole. The middle part of the threaded rod is inserted and connected to the through hole in the middle of the lock tongue. One end of the threaded rod passes through the threaded hole and is fixedly connected to the knob block.

[0010] In the above technical solution, a slot is fixedly connected to the upper surface of the Bluetooth chip, a heat-conducting block is fixedly connected to the inner side of the shielding shell, the heat-conducting block is inserted into the slot, a gap is left between the heat-conducting block and the slot, and the gap is filled with heat-dissipating silicone, and a number of heat-dissipating fins are provided on the upper surface of the shielding shell.

[0011] The beneficial effects of this utility model are:

[0012] 1. Stable connection and strong vibration resistance: The dual cooperation of threaded locking and buckle achieves extremely high reliability of mechanical connection, which can effectively resist external impact and vibration and prevent the shielding cover from loosening.

[0013] 2. Excellent electromagnetic shielding performance: The metal casing and the base plate form a complete conductive cavity through continuous and tight snap fasteners, ensuring the continuity of shielding and significantly improving the ability to resist electromagnetic interference (EMI).

[0014] 3. High heat dissipation efficiency and improved reliability: The unique design of the heat-conducting block and the filling of thermal grease establishes an efficient heat path from the chip to the casing. Combined with the external fins, it can quickly dissipate heat and prevent the chip from overheating.

[0015] 4. Easy to install and remove, facilitating maintenance: The knob locking mechanism allows the shielding cover to be quickly and easily disassembled and installed without damage, greatly facilitating the debugging, testing and replacement of the internal Bluetooth chip and reducing maintenance costs.

[0016] 5. Simple production and assembly with high precision: The slot ring and latch design provide clear assembly guidance and initial positioning, simplifying the production process and ensuring the consistency and accuracy of assembly.

[0017] 6. Compact structure and wide applicability: This design integrates shielding, heat dissipation and fastening functions in a limited space, with strong overall integrity, and can be widely used in electronic devices with strict requirements for space and reliability. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the open structure of the shielding cover of this utility model;

[0020] Figure 3 This is a three-dimensional structural diagram of the shielding cover of this utility model from a bottom view;

[0021] Figure 4 This is a schematic diagram of the connection structure between the buckle seat and the base of this utility model;

[0022] Figure 5 for Figure 4 Detailed structural diagram of part A1.

[0023] In the diagram: 1. Base plate, 2. Snap-on seat, 3. Shielding cover, 4. Bluetooth chip, 101. Snap-on ring, 102. Slot ring, 103. Locking component, 104. Locking tongue, 105. Groove, 201. Snap-on tongue, 202. Slot, 301. Slot plate, 302. Threaded rod, 303. Knob block, 304. Embedding groove, 305. Locking hole, 306. Through hole, 307. Threaded hole, 401. Slot box, 402. Heat-conducting block, 403. Heat dissipation fins. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-5 A Bluetooth chip shielding structure for electromagnetic interference resistance includes a base plate 1, a snap-fit ​​base 2, a shielding shell 3, and a Bluetooth chip 4. The Bluetooth chip 4 is disposed inside the shielding shell 3. The lower end of the shielding shell 3 is snapped onto the snap-fit ​​base 2, and the snap-fit ​​base 2 is fixedly connected to the upper end of the base plate 1. The base plate 1 serves as the mounting base for the entire structure, and its surface is provided with integrated circuits that connect to the pins of the Bluetooth chip 4. The snap-fit ​​base 2 is fixed to the base plate 1 and serves as the connection base. It is firmly connected to the lower end of the shielding shell 3 through snap-fit ​​and locking mechanisms. The shielding shell 3 covers the Bluetooth chip 4, forming a sealed cavity to provide electromagnetic shielding.

[0026] The buckle seat 2 includes a buckle ring 101, a slot ring 102, a locking member 103, and a locking tongue 104. The slot ring 102 is fixedly connected to the inner edge of the buckle ring 101. The slot ring 102 is inserted into the lower opening of the shielding cover 3. Locking members 103 are respectively provided on the front and rear sides of the slot ring 102 and the buckle ring 101. The shielding cover has a matching groove 105. The locking tongue 104 is fixedly connected to the middle of the groove 105. The locking member 103 is fitted into the groove 105, and the locking tongue 104 is inserted into the middle of the locking member 103.

[0027] In the above technical solution, latches 201 are fixedly connected to the latching rings 101 on the left and right sides of the slot ring 102, and slots 202 are respectively opened on the outer wall of the corresponding side of the shielding cover, and the ends of the latches 201 are respectively latched and connected in the slots 202.

[0028] In the above technical solution, the locking component 103 includes a slot plate 301, a threaded rod 302, and a knob block 303. The slot plate 301 is fixedly connected between the slot ring 102 and the buckle ring 101. The upper end of the slot plate 301 has a retaining groove 304. The groove openings 105 on both sides of the shielding cover are respectively fitted and connected to the slot plate 301, and one edge of the groove opening 105 is fitted and connected to the retaining groove 304. The middle part of the retaining groove 304 A lock hole 305 is provided, and a lock tongue 104 is inserted into the lock hole 305. A through hole 306 is passed through the middle of the lock tongue 104. A threaded hole 307 is passed through the slot plate 301 opposite to the through hole 306. A threaded rod 302 is threaded into the threaded hole 307, and the middle of the threaded rod 302 is inserted into the through hole 306 in the middle of the lock tongue 104. One end of the threaded rod 302 passes through the threaded hole 307 and is fixedly connected to the knob block 303.

[0029] In the above technical solution, a slot box 401 is fixedly connected to the upper surface of the Bluetooth chip 4, a heat-conducting block 402 is fixedly connected to the inner side of the shielding shell 3, the heat-conducting block 402 is inserted into the slot box 401, a gap is left between the heat-conducting block 402 and the slot box 401, and the gap is filled with heat-dissipating silicone, and a number of heat dissipation fins 403 are provided on the upper surface of the shielding shell 3.

[0030] The working principle of this utility model is as follows: First, a certain amount of heat-dissipating silicone is applied inside the slot 401. Then, the shielding cover 3 is pressed down so that the grooves 105 on both sides are aligned and embedded into the slot plate 301. At this time, the edges of the grooves 105 slide into the locking grooves 304, and the locking tongues 104 are inserted into the locking holes 305 in the middle of the slot plate 301. Simultaneously, the ends of the locking tongues 201 on both sides slide along the outer wall of the shielding cover 3 until the ends of the locking tongues 201 are respectively engaged with the slots 20 on the outer surface of the shielding cover 3. Inside 2, the shielding cover 3 is initially fixed. In addition, the heat-conducting block 402 inside the shielding cover 3 is directly inserted into the slot box 401. Under pressure, the heat-dissipating silicone in the slot box 401 is evenly filled into the gap between the heat-conducting block 402. Finally, the knob block 303 is rotated to drive the threaded rod 302 into the threaded hole 307 of the slot plate 301. The threaded rod 302 will pass through the through hole 306 in the middle of the locking tongue 104, thereby fixing the locking tongue 104 in the locking hole 305, forming an extremely stable connection.

[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0032] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An electromagnetic interference resistant Bluetooth chip shield structure, comprising a bottom plate (1), a buckle seat (2), a shield shell (3), and a Bluetooth chip (4), characterized in that: The shielding cover (3) is equipped with a Bluetooth chip (4), and the lower end of the shielding cover (3) is snapped onto the buckle seat (2), which is fixedly connected to the upper end of the base plate (1). The buckle seat (2) includes a buckle ring (101), a slot ring (102), a locking member (103), and a locking tongue (104). The inner edge of the buckle ring (101) is fixedly connected to the slot ring (102). The slot ring (102) is inserted into the lower opening of the shielding cover (3). Locking members (103) are respectively provided on the front and rear sides of the slot ring (102) and the buckle ring (101). The shielding cover has a matching groove (105). The locking tongue (104) is fixedly connected to the middle of the groove (105). The locking member (103) is fitted into the groove (105), and the locking tongue (104) is inserted into the middle of the locking member (103).

2. The electromagnetic interference shielding structure for a Bluetooth chip according to claim 1, wherein: The latches (101) on the left and right sides of the slot ring (102) are respectively fixedly connected to the latches (101), and the outer wall of the corresponding side of the shield is respectively provided with a slot (202), and the end of the latch (201) is respectively snapped into the slot (202).

3. The electromagnetic interference shielding structure for a Bluetooth chip according to claim 1, wherein: The locking component (103) includes a slot plate (301), a threaded rod (302), and a knob block (303). The slot plate (301) is fixedly connected between the slot ring (102) and the buckle ring (101). A retaining groove (304) is provided at the upper end of the slot plate (301). The groove openings (105) on both sides of the shielding cover are respectively fitted and connected to the slot plate (301), and one edge of the groove opening (105) is fitted and connected in the retaining groove (304). A locking hole (304) is provided in the middle of the retaining groove (304). 05), the latch (104) is inserted into the lock hole (305), the middle of the latch (104) has a through hole (306), the slot plate (301) opposite the through hole (306) has a threaded hole (307), the threaded rod (302) is threaded into the threaded hole (307), and the middle of the threaded rod (302) is inserted into the through hole (306) in the middle of the latch (104), and one end of the threaded rod (302) passes through the threaded hole (307) and is fixedly connected to the knob block (303).

4. The electromagnetic interference shielding structure for a Bluetooth chip according to claim 1, wherein: The upper surface of the Bluetooth chip (4) is fixedly connected to a slot box (401), and the inner side of the shielding shell (3) is fixedly connected to a heat-conducting block (402). The heat-conducting block (402) is inserted into the slot box (401). There is a gap between the heat-conducting block (402) and the slot box (401), and the gap is filled with heat-dissipating silicone. The upper surface of the shielding shell (3) is provided with several heat-dissipating fins (403).

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