CN217037185U - Bluetooth module's waterproof construction - Google Patents

Abstract

A waterproof structure of a Bluetooth module comprises a PCB, a Bluetooth chip, a detachable antenna, an antenna mounting groove, an automatic laminating structure and a waterproof shell, wherein the Bluetooth chip is mounted on the left half part of the PCB, the antenna mounting groove is formed in the right end of the PCB, the detachable antenna is mounted in the antenna mounting groove, the automatic laminating structure is arranged on the left side wall of the antenna mounting groove, a plurality of wiring electrodes are arranged at the front end and the rear end of the PCB from left to right, and the waterproof shell is mounted on the outer side of the PCB. Only need connect on the terminal can, prevented that moisture from getting into the risk of casing from the wiring, guaranteed the leakproofness.

Description

Waterproof structure of Bluetooth module

Technical Field

The utility model relates to the technical field of Bluetooth modules, in particular to a waterproof structure of a Bluetooth module.

Background

The Bluetooth module is a PCBA board integrated with Bluetooth function, is used for short-distance wireless communication, generally consists of a Bluetooth chip and an antenna integrated on a PCB board, the antenna of the existing Bluetooth module is generally an on-board antenna, the on-board antenna has small volume and compactness and can be arranged on the PCB board, however, this antenna has the disadvantage that it cannot be removed from the PCB, which makes it necessary to replace the entire PCB if the antenna of the bluetooth module fails, which makes the cost too high, moreover, the Bluetooth chip, the onboard antenna and the motor on the PCB of the existing Bluetooth module are all exposed outside and have no waterproof function, so if the Bluetooth module is equipped in a place with heavy moisture or water vapor, the short circuit of the internal electrode will occur, which affects the product life, so how to design a bluetooth module with replaceable and waterproof antenna becomes a problem to be solved urgently.

Disclosure of Invention

According to the technical problem, the utility model provides a waterproof structure of a Bluetooth module, which is characterized by comprising a PCB, a Bluetooth chip, a detachable antenna, an antenna mounting groove, an automatic laminating structure and a waterproof shell, wherein the Bluetooth chip is mounted on the left half part of the PCB;

baffles are symmetrically arranged at the left and right sides of the bottom end of the antenna mounting groove;

the detachable antenna comprises a bearing plate, an antenna strip, a connecting copper bar, a connecting copper pole and base plates, wherein the antenna strip is wound on the bearing plate, the connecting copper pole is arranged on the left side of the front end of the bearing plate and connected with the antenna strip through the connecting copper bar, the base plates are arranged at the left end and the right end of the bearing plate, and the base plates are of strip structures;

the automatic laminating structure comprises a telescopic groove, a telescopic copper pole, an elastic metal sheet and a copper sheet, wherein the telescopic groove is formed in the left side wall of the antenna mounting groove, the telescopic copper pole is slidably mounted in the telescopic groove, the right end face of the telescopic copper pole is an inclined plane, the elastic metal sheet is arranged on the left side of the telescopic copper pole, the left end of the elastic metal sheet is connected with the copper sheet, and the copper sheet is connected with the Bluetooth chip through a PCB (printed circuit board) built-in circuit;

waterproof case comprises casing and bottom plate, the bottom plate is installed to the casing bottom, the bottom plate passes through the fix with screw on the casing, the bottom plate upper surface is provided with round resin seal circle, both ends are provided with a plurality of wiring mouth from left to right around the casing upper surface, wiring mouth central authorities are provided with the terminal, the terminal bottom extends to inside and be provided with of casing and compresses tightly even electric copper, compress tightly even electric copper and compress tightly on the wiring electrode of PCB board.

The beneficial effects of the utility model are as follows:

according to the utility model, by arranging the detachable antenna, the antenna mounting groove and the automatic laminating mechanism, when the antenna fails or is damaged, the PCB does not need to be integrally replaced, only the detachable antenna needs to be taken out, and a new detachable antenna is placed in the antenna mounting groove;

according to the utility model, the waterproof shell is arranged, the shell and the bottom plate of the waterproof shell surround the PCB at the inner side, and the resin sealing ring is arranged on the bottom plate, so that external moisture or humidity can be prevented from entering, the Bluetooth chip and the antenna are protected in a dry state to prevent the influence of short circuit, and the service life is prolonged.

Drawings

FIG. 1 is a top view of a PCB board of the present invention;

FIG. 2 is a cross-sectional view of a front view of the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is a cross-sectional view of a side view of the present invention;

FIG. 5 is an enlarged view of portion B of FIG. 4;

fig. 6 is a top view of the present invention.

As shown in the figure: 1. a PCB board; 2. a Bluetooth chip; 3. a detachable antenna; 4. an antenna mounting slot; 5. a wiring electrode; 6. a baffle plate; 7. carrying a plate; 8. an antenna strip; 9. connecting the copper bars; 10. connecting the copper pole; 11. a base plate; 12. a telescopic groove; 13. a telescopic copper pole; 14. a resilient metal sheet; 15. a copper sheet; 16. a housing; 17. a base plate; 18. a resin seal ring; 19. a wiring port; 20. a binding post; 21. and pressing the connecting copper plate.

Detailed Description

Example 1

The utility model provides a waterproof structure of a Bluetooth module, which is characterized by comprising a PCB (printed Circuit Board) 1, a Bluetooth chip 2, a detachable antenna 3, an antenna mounting groove 4, an automatic laminating structure and a waterproof shell, wherein the Bluetooth chip 2 is mounted on the left half part of the PCB 1, the antenna mounting groove 4 is formed in the right end of the PCB 1, the detachable antenna 3 is mounted in the antenna mounting groove 4, the automatic laminating structure is arranged on the left side wall of the antenna mounting groove 4, a plurality of wiring electrodes 5 are arranged at the front end and the rear end of the PCB 1 from left to right, and the waterproof shell is mounted on the outer side of the PCB 1;

the baffle plates 6 are symmetrically arranged at the left and the right of the bottom end of the antenna mounting groove 4;

the detachable antenna 3 comprises a bearing plate 7, an antenna strip 8, a connecting copper bar 9, a connecting copper pole 10 and backing plates 11, wherein the antenna strip 8 is wound on the bearing plate 7, the connecting copper pole 10 is arranged on the left side of the front end of the bearing plate 7, the connecting copper pole 10 is connected with the antenna strip 8 through the connecting copper bar 9, the backing plates 11 are arranged at the left end and the right end of the bearing plate 7, and the backing plates 11 are of strip structures;

the automatic laminating structure comprises a telescopic groove 12, a telescopic copper pole 13, an elastic metal sheet 14 and a copper sheet 15, wherein the telescopic groove 12 is formed in the left side wall of the antenna mounting groove 4, the telescopic copper pole 13 is slidably mounted in the telescopic groove 12, the right end face of the telescopic copper pole 13 is an inclined plane, the elastic metal sheet 14 is arranged on the left side of the telescopic copper pole 13, the left end of the elastic metal sheet 14 is connected with the copper sheet 15, and the copper sheet 15 is connected with the Bluetooth chip 2 through a built-in circuit of the PCB 1;

waterproof housing comprises casing 16 and bottom plate 17, bottom plate 17 is installed to casing 16 bottom, bottom plate 17 passes through the fix with screw on casing 16, bottom plate 17 upper surface is provided with round resin seal 18, both ends are provided with a plurality of wiring mouth 19 from left to right around the casing 16 upper surface, wiring mouth 19 central authorities are provided with terminal 20, terminal 20 bottom extends to casing 16 inside and is provided with compresses tightly even electric copper 21, compress tightly even electric copper 21 and compress tightly on the wiring electrode 5 of PCB board 1.

Example 2

When the detachable antenna 3 needs to be replaced, firstly loosening the screw between the shell 16 and the bottom plate 17 and detaching the waterproof shell, taking out the bearing plate 7 of the detachable antenna 3, popping the telescopic copper pole 13 into the antenna mounting groove 4 under the action of the elastic metal sheet 14, then putting the new bearing plate 7 of the detachable antenna 3 into the antenna mounting groove 4 until the bottom part abuts against the position on the baffle 6, simultaneously squeezing the inclined plane of the telescopic copper pole 13 while putting the bearing plate 7 in, so that the telescopic copper pole 13 moves towards the inner side of the telescopic groove 12, meanwhile, the elastic metal sheet 14 is compressed, meanwhile, the telescopic copper pole 13 squeezes and connects the copper pole 10 and is connected with the same under the action of the elastic metal sheet 14, the Bluetooth chip 2 is communicated with the antenna strip 8 through the telescopic copper pole 13 and the connection copper pole 10, then covering the shell 16 outside the PCB 1 and buckling the bottom plate 17 at the bottom, and fixing through the screw, when fixed, casing 16 extrudees removable antenna 3's backing plate 11 with its compaction, make it can't break away from in the antenna mounting groove 4, resin seal 18 is located casing 16 and bottom plate 17's gap department simultaneously, prevent that moisture from getting into, when installing casing 16, compress tightly even electric copper 21 and support on PCB board 1's wiring electrode 5, wiring electrode 5 is through compressing tightly even electric copper 21 and post 20 intercommunication like this, only need during the wiring can realize its and PCB board 1's being connected with the winding of external line and welding on post 20.

The foregoing shows and describes the general principles and features of the present invention, together with the advantages thereof. While the utility model has been described with respect to the above embodiments, it will be understood by those skilled in the art that the utility model is not limited to the above embodiments, which are described in the specification and illustrated only to illustrate the principles of the utility model, but that various changes and modifications may be made without departing from the spirit and scope of the utility model as defined by the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (8)

1. The utility model provides a bluetooth module's waterproof construction, its characterized in that includes PCB board, bluetooth chip, removable antenna, antenna mounting groove, automatic laminated structure and waterproof case, the bluetooth chip is installed in half part in the PCB board left side, the antenna mounting groove has been seted up to PCB board right-hand member, install removable antenna in the antenna mounting groove, antenna mounting groove left side wall department is provided with automatic laminated structure, both ends are provided with a plurality of wiring electrode from left to right around the PCB board, waterproof case is installed in the PCB board outside.

2. The waterproof structure of a Bluetooth module of claim 1, wherein the bottom end of the antenna mounting groove is symmetrically provided with baffles.

3. The waterproof structure of a bluetooth module according to claim 1, wherein the detachable antenna comprises a carrier plate, an antenna strip, a connecting copper pole, and a backing plate, the antenna strip is wound around the carrier plate, the connecting copper pole is disposed at the left side of the front end of the carrier plate, the connecting copper pole is connected to the antenna strip through the connecting copper strip, the backing plates are disposed at the left and right ends of the carrier plate, and the backing plates are in a strip structure.

4. The waterproof structure of a bluetooth module according to claim 1, wherein the automatic bonding structure comprises a flexible groove, a flexible copper pole, an elastic metal sheet and a copper sheet, the flexible groove is formed in the left side wall of the antenna mounting groove, the flexible copper pole is slidably mounted in the flexible groove, the elastic metal sheet is arranged on the left side of the flexible copper pole, the left end of the elastic metal sheet is connected with the copper sheet, and the copper sheet is connected with the bluetooth chip through a circuit built in the PCB board.

5. The waterproof structure of a bluetooth module according to claim 1, wherein said waterproof case is composed of a case body and a bottom plate, said bottom plate is installed on the bottom of said case body, said bottom plate is fixed on said case body by screws.

6. The waterproof structure of a Bluetooth module as claimed in claim 4, wherein the right end face of the telescopic copper pole is an inclined face.

7. The waterproof structure of claim 5, wherein the upper surface of the base plate is provided with a ring of resin sealing ring.

8. The waterproof structure of claim 5, wherein a plurality of connection ports are formed in the front and rear ends of the upper surface of the housing from left to right, a connection terminal is disposed in the center of each connection port, the bottom end of each connection terminal extends into the housing and is provided with a compression connection copper plate, and the compression connection copper plate is compressed on the connection electrode of the PCB.

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