CN215420216U

CN215420216U - Multi-pin crystal oscillator

Info

Publication number: CN215420216U
Application number: CN202121765095.8U
Authority: CN
Inventors: 李经让; 刘丽华
Original assignee: Suzhou Hangjing Electronic Technology Co ltd
Current assignee: Suzhou Hangjing Electronic Technology Co ltd
Priority date: 2021-07-30
Filing date: 2021-07-30
Publication date: 2022-01-04
Anticipated expiration: 2031-07-30

Abstract

The utility model discloses a multi-pin crystal oscillator, which comprises a PCB (printed circuit board), wherein a protective shell is arranged above the PCB, an oscillator body is arranged above the PCB and inside the protective shell, a heat dissipation mechanism is arranged inside the protective shell, the heat dissipation mechanism comprises a heat dissipation film and heat dissipation holes, the heat dissipation film is fixed on the upper surface of the oscillator body, the upper surface of the heat dissipation film is in contact with the inner top of the protective shell, the heat dissipation holes are formed in the left side wall and the right side wall of the protective shell, the number of the heat dissipation holes is multiple, a mounting seat is fixedly connected to the upper surface of the PCB, a limiting block is fixedly connected to the side surface of the mounting seat, and a groove is formed in the inner side wall of the protective shell and close to the edge of the bottom. The equipment has a simple and reasonable structure, can well overcome the defects of the prior art, effectively improves the heat dissipation performance, and is favorable for ensuring the normal operation of the crystal oscillator.

Description

Multi-pin crystal oscillator

Technical Field

The utility model relates to the technical field of electrical device assembly, in particular to a multi-pin crystal oscillator.

Background

Some electronic devices need ac signals with highly stable frequency, while LC oscillators have poor stability and easy frequency drift (i.e. the frequency of the generated ac signal is easy to change), and a special element, namely quartz crystal, is used in the oscillator to generate highly stable signals, and the oscillator using quartz crystal is called a crystal oscillator, and the crystal oscillator has piezoelectric effect, i.e. the crystal will deform after voltage is applied to two poles of the wafer, and conversely, if the wafer deforms by external force, the metal sheets on the two poles will generate voltage, if proper alternating voltage is applied to the wafer, the wafer will generate resonance (the resonance frequency has a relation with the inclination angle of the quartz inclined plane, and the frequency is constant), and the crystal oscillator uses a crystal which can convert electrical energy and mechanical energy into each other, and can provide stable and accurate single-frequency oscillation when working under resonance condition, the absolute precision of the frequency of a common crystal oscillator can reach fifty parts per million, and by utilizing the characteristic, the crystal oscillator can provide stable pulses and is widely applied to a clock circuit of a microchip, a wafer is mostly made of quartz semiconductor materials, and a shell is packaged by metal.

The applicant finds that the Chinese patent discloses 'a crystal oscillator' through search when applying the utility model, the patent is '202020431304.4', which is mainly formed by arranging the pins of the crystal resonator as a first part and a second part, the first part connects the chip and the second part in the crystal resonator, part of the second part extends into the gap pad hole, and the second part and the pad are connected by solder, thereby realizing the electric connection between the crystal resonator and the printed circuit board, finally realizing the assembly of the crystal oscillator, although the patent improves the assembly effect of the crystal oscillator in the specification, a large amount of heat generated by the oscillator body is inconvenient to dissipate and easily affects the operation of the crystal oscillator in the actual use process, and therefore, according to the utility model of the applicant, a device capable of aiming at the crystal oscillator is provided, and the problem that a large amount of heat generated by the oscillator body is inconvenient to dissipate in the actual use process is solved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a multi-pin crystal oscillator.

In order to achieve the purpose, the utility model adopts the following technical scheme: the utility model provides a many pins crystal oscillator, includes the PCB board, the top of PCB board is provided with the protecting crust, the top of PCB board and the inside that is located the protecting crust are provided with the oscillator body, the inside of protecting crust is provided with heat dissipation mechanism.

As a further description of the above technical solution:

the heat dissipation mechanism comprises a heat dissipation film and a plurality of heat dissipation holes, the heat dissipation film is fixed on the upper surface of the oscillator body, the upper surface of the heat dissipation film is in contact with the inner top of the protective shell, the heat dissipation holes are formed in the left side wall and the right side wall of the protective shell, and the number of the heat dissipation holes is multiple.

As a further description of the above technical solution:

the upper surface fixed connection of PCB board has the mount pad, the side surface fixed connection of mount pad has the stopper.

As a further description of the above technical solution:

the inner side wall of the protective shell is provided with a groove close to the bottom edge, and the groove is connected with the limiting block in a matched mode.

As a further description of the above technical solution:

the side surface of oscillator body just is close to bottom edge fixedly connected with pin, the side surface that the oscillator body was kept away from to the pin is connected with the upper surface fixed of PCB board, the quantity of pin is a plurality ofly.

As a further description of the above technical solution:

the side surface of the protective shell is fixedly connected with an electrostatic dust collector close to the edge of the bottom.

The utility model has the following beneficial effects:

1. compared with the prior art, this many pins crystal oscillator, this equipment structure is simple reasonable, can solve the not enough of prior art well, improves heat dispersion effectively, is favorable to guaranteeing crystal oscillator's normal operating.

2. Compared with the prior art, this many pins crystal oscillator through setting up electrostatic precipitator, can distribute away the heat that oscillator body work produced well, distributes away the heat through using the louvre simultaneously.

Drawings

FIG. 1 is a perspective view of an external structure of a multi-pin crystal oscillator according to the present invention;

FIG. 2 is a front view of the internal structure of a multi-pin crystal oscillator according to the present invention;

FIG. 3 is a front view of an external structure of a multi-pin crystal oscillator according to the present invention;

fig. 4 is an enlarged view of a in fig. 2 according to the present invention.

Illustration of the drawings:

1. a PCB board; 2. a protective shell; 3. an oscillator body; 4. a heat dissipating film; 5. heat dissipation holes; 6. a pin; 7. a mounting seat; 8. an electrostatic precipitator; 9. a groove; 10. and a limiting block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-4, the present invention provides a multi-pin crystal oscillator: including PCB board 1, the top of PCB board 1 is provided with protecting crust 2, the top of PCB board 1 and the inside that is located protecting crust 2 are provided with oscillator body 3, the inside of protecting crust 2 is provided with heat dissipation mechanism, heat dissipation mechanism includes heat dissipation film 4, louvre 5, the upper surface at oscillator body 3 is fixed to heat dissipation film 4, the upper surface of heat dissipation film 4 contacts with the interior top of protecting crust 2, lateral wall about protecting crust 2 is seted up to louvre 5, the quantity of louvre 5 is a plurality of, be connected oscillator body 3's upper surface and protecting crust 2's interior top through using heat dissipation film 4, can distribute away the heat that oscillator body 3 work produced well, distribute away the heat through using louvre 5 simultaneously.

The upper surface of PCB board 1 is fixed with mount pad 7, and the side surface fixed connection of mount pad 7 has stopper 10, can make things convenient for the mount pad very much and dismantle protecting crust 2 through using mount pad 7.

The inside wall of protecting crust 2 just is close to bottom edge and has seted up recess 9, and recess 9 is connected with the stopper 10 cooperation, plays the effect that the convenience was fixed a position protecting crust 2.

Oscillator body 3's side surface and be close to bottom edge fixedly connected with pin 6, pin 6 keep away from oscillator body 3's side surface and PCB board 1's last fixed surface be connected, and the quantity of pin 6 is a plurality of, plays the effect that the convenience was fixed a position oscillator body 3.

The side surface of protective housing 2 just is close to bottom edge fixedly connected with electrostatic precipitator 8, plays and adsorbs dust on every side, prevents to have the dust to fall the surface of protective housing 2, and then influences the radiating effect.

The working principle is as follows: during the use, be connected the upper surface of oscillator body 3 and the interior top of protecting crust 2 through using heat dissipation membrane 4, can distribute away the heat that 3 work of oscillator body produced well, distribute away the heat through using louvre 5 simultaneously.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims

1. A multi-pin crystal oscillator, comprising a PCB board (1), characterized in that: the oscillator is characterized in that a protective shell (2) is arranged above the PCB (1), an oscillator body (3) is arranged above the PCB (1) and inside the protective shell (2), and a heat dissipation mechanism is arranged inside the protective shell (2).

2. A multi-pin crystal oscillator according to claim 1, wherein: the heat dissipation mechanism comprises a heat dissipation film (4) and heat dissipation holes (5), wherein the heat dissipation film (4) is fixed on the upper surface of the oscillator body (3), the upper surface of the heat dissipation film (4) is in contact with the inner top of the protective shell (2), the heat dissipation holes (5) are arranged on the left side wall and the right side wall of the protective shell (2), and the number of the heat dissipation holes (5) is multiple.

3. A multi-pin crystal oscillator according to claim 1, wherein: the PCB is characterized in that the upper surface of the PCB (1) is fixedly connected with a mounting seat (7), and the side surface of the mounting seat (7) is fixedly connected with a limiting block (10).

4. A multi-pin crystal oscillator according to claim 1, wherein: the inner side wall of the protective shell (2) is provided with a groove (9) close to the bottom edge, and the groove (9) is connected with a limiting block (10) in a matching mode.

5. A multi-pin crystal oscillator according to claim 1, wherein: the oscillator comprises an oscillator body (3), and is characterized in that the side surface of the oscillator body (3) is close to the bottom edge and is fixedly connected with pins (6), the side surface of the pin (6) far away from the oscillator body (3) is fixedly connected with the upper surface of a PCB (1), and the pins (6) are multiple in number.

6. A multi-pin crystal oscillator according to claim 1, wherein: the side surface of the protective shell (2) is fixedly connected with an electrostatic dust collector (8) close to the edge of the bottom.