Buzzer with PCB

Abstract

The utility model relates to a buzzer with a PCB board, comprising a PCB board and pins, the PCB board is made of a glass fiber board material, the upper ends of the pins penetrate through the PCB board from bottom to top, the upper ends of the pins and the upper side of the PCB board are installed and fixed through riveting, and because the thickness of the PCB board made of the glass fiber board material is relatively thin, the PCB board can be directly used as a structure for fixing the pins in a production and processing process, and the PCB board can be directly used as a structure for fixing the pins. According to the technical scheme, the overall thickness of the buzzer can be well reduced relatively, the buzzer can be suitable for a thin product, the upper ends of the pins are fixed to the PCB in a riveting mode, and the situation that the pins are prone to falling off due to the fact that the PCB abuts against the PCB in a thin mode and the connection strength of the pins is affected can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of buzzers, in particular to a buzzer with a PCB board. Background Art

[0002] Electromagnetic buzzer is a common electronic component, widely used in occasions such as alarm, reminder and indication.

[0003] The electromagnetic buzzer includes a bottom cover, pins and a coil frame for winding the coil group. The bottom cover is connected and fixed to the pins and the coil frame. However, the overall thickness of the bottom cover is relatively large, which makes the buzzer unsuitable for use on thinner products.

[0004] Therefore, further improvement is needed. Utility Model Content

[0005] The purpose of the present invention is to overcome the above-mentioned deficiencies in the prior art and to provide a buzzer with a PCB board, so that the overall thickness of the buzzer is relatively thinner and can be applied to thinner products.

[0006] The purpose of this utility model is achieved in this way:

[0007] A buzzer with a PCB board includes a PCB board and pins. The PCB board is made of a fiberglass board. The upper ends of the pins penetrate the PCB board from bottom to top, and the upper ends of the pins are fixed to the upper side of the PCB board by riveting.

[0008] As a specific solution, the thickness of the PCB board is d, 3mm≤d≤4.5mm.

[0009] As a specific solution, a coil group is provided on the upper side of the PCB board, and the starting end and / or the ending end of the coil group is electrically connected to the pins through direct contact.

[0010] As a specific solution, a wire avoidance groove is provided on the PCB board. The wire avoidance groove is open at the outer side of the PCB board. The wire avoidance groove vertically penetrates the upper and lower sides of the PCB board. The starting end and the end end of the coil group respectively pass through the corresponding wire avoidance groove from top to bottom through the PCB board and are in direct contact with the corresponding pins for electrical connection.

[0011] As a specific solution, the pin is provided with corners for increasing the friction between the pin and the coil assembly, and the vertical projection of the pin is polygonal.

[0012] As a specific solution, a shell is provided on the circumferential outer side of the PCB board, and a magnetic ring is provided on the inner side of the shell corresponding to the upper side of the PCB board. The lower side of the magnetic ring abuts the PCB board, and the upper side of the magnetic ring is connected to a vibration plate. The coil group is located in the cavity inside the magnetic ring; the shell covers the PCB board and / or the coil group and / or the magnetic ring and / or the vibration plate.

[0013] The beneficial effects of the utility model are:

[0014] Because fiberglass PCBs are relatively thin, they can be used directly as a pin-fixing structure during production. This significantly reduces the overall thickness of the buzzer, making it suitable for use on thinner products. Furthermore, the upper ends of the pins are riveted to the PCB, preventing the pins from falling off due to the thinner PCB and the resulting loss of connection strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A cross-sectional view of an embodiment of the present invention Figure 1 .

[0016] Figure 2 It is an exploded schematic diagram of an embodiment of the present utility model.

[0017] Figure 3 It is an enlarged view of A in embodiment of the present invention. DETAILED DESCRIPTION

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] See also Figure 1-Figure 3 The buzzer with a PCB board includes a PCB board 1 and pins 2. The PCB board 1 is made of fiberglass board. The upper end of the pin 2 passes through the PCB board 1 from bottom to top. The upper end of the pin 2 is fixed to the upper side of the PCB board 1 by riveting. Since the PCB board 1 made of fiberglass board is relatively thin, the PCB board 1 can be directly used as a structure for fixing the pin 2 during the production and processing process. This can effectively reduce the overall thickness of the buzzer, making the buzzer suitable for thinner products. Moreover, the upper end of the pin 2 is fixed to the PCB board 1 by riveting, which can avoid the situation where the connection strength of the pin 2 is affected by the thinness of the PCB board 1, resulting in the pin 2 easily falling off.

[0020] Furthermore, the thickness of the PCB board 1 is d, 3mm≤d≤4.5mm. In this embodiment, the specific value of d can be preferably 3mm.

[0021] Furthermore, a coil assembly 3 is provided on the upper side of the PCB board 1, and the starting end and / or the end of the coil assembly 3 are electrically connected to the pin 2 through direct contact, thereby eliminating the soldering process between the PCB board 1, the coil assembly 3 and the pin 2, thereby improving production efficiency.

[0022] Furthermore, a wire avoidance groove 11 is provided on the PCB board 1. The wire avoidance groove 11 is open at the outer side of the PCB board 1. The wire avoidance groove 11 vertically penetrates the upper and lower sides of the PCB board 1. The starting end and the end end of the coil group 3 pass through the corresponding wire avoidance groove 11 from top to bottom through the PCB board 1 and are in direct contact and electrical connection with the corresponding pin 2, so that the coil can be more easily passed through the PCB board 1 and connected and fixed with the pin 2, and the coil group 3 is prevented from protruding from the side of the PCB board 1 and affecting the later assembly.

[0023] Furthermore, the pin 2 is provided with an edge 21 for increasing the friction between it and the coil group 3. The vertical projection of the pin 2 is polygonal in shape, which increases the friction between the wire harness of the winding group and the pin 2, making the connection between the two more stable, and the wire harness can be relatively easily torn off after the winding is completed, simplifying the winding operation.

[0024] Furthermore, a shell 4 is provided on the circumferential outer side of the PCB board 1, and a magnetic ring 5 is provided on the inner side of the shell 4 corresponding to the upper side of the PCB board 1. The lower side of the magnetic ring 5 abuts against the PCB board 1, and the upper side of the magnetic ring 5 is connected to the vibration plate 6. The coil group 3 is located in the cavity inside the magnetic ring 5; the shell 4 covers the PCB board 1 and / or the coil group 3 and / or the magnetic ring 5 and / or the vibration plate 6. The shell 4 can protect components such as the PCB board 1, the coil group 3, the magnetic ring 5 and the vibration plate 6.

[0025] The above embodiments are only preferred embodiments of the present invention, and other embodiments are possible. Those skilled in the art may make equivalent modifications or substitutions without violating the spirit of the present invention, and these equivalent modifications or substitutions are all within the scope set by the claims of this application.

Claims

1. A buzzer with a PCB board, comprising a PCB board (1) and pins (2), characterized in that: The PCB board (1) is made of a glass fiber board, the upper end of the pin (2) passes through the PCB board (1) from bottom to top, and the upper end of the pin (2) is fixed to the upper side of the PCB board (1) by riveting.

2. The buzzer with a PCB board according to claim 1, characterized in that: The thickness of the PCB board (1) is d, 3mm≤d≤4.5mm.

3. The buzzer with a PCB according to claim 1 or 2, characterized in that: A coil group (3) is provided on the upper side of the PCB board (1), and the starting end and / or the ending end of the coil group (3) are electrically connected to the pin (2) through direct contact.

4. The buzzer with a PCB board according to claim 3, characterized in that: The PCB board (1) is provided with a wire avoidance groove (11), and the wire avoidance groove (11) is open at an outer position corresponding to the PCB board (1). The wire avoidance groove (11) vertically penetrates the upper and lower sides of the PCB board (1). The starting end and the end end of the coil group (3) respectively pass through the corresponding wire avoidance groove (11) from top to bottom through the PCB board (1) and are in direct contact with the corresponding pins (2) for electrical connection.

5. The buzzer with a PCB board according to claim 3, characterized in that: The pin (2) is provided with an edge (21) for increasing the friction between the pin and the coil assembly (3), and the vertical projection of the pin (2) is polygonal.

6. The buzzer with a PCB board according to claim 3, characterized in that: A housing (4) is provided on the circumferential outer side of the PCB board (1); a magnetic ring (5) is provided on the inner side of the housing (4) at a position corresponding to the upper side of the PCB board (1); the lower side of the magnetic ring (5) abuts against the PCB board (1); the upper side of the magnetic ring (5) is connected to a vibration plate (6); the coil group (3) is located in a cavity inside the magnetic ring (5); and the housing (4) covers the PCB board (1) and / or the coil group (3) and / or the magnetic ring (5) and / or the vibration plate (6).

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