Mounting structure of crystal oscillator source

Abstract

The utility model discloses a mounting structure of a crystal oscillator source, which comprises a clamping assembly welded on a bonding pad corresponding to a welding position of a crystal oscillator on a PCB (Printed Circuit Board), the clamping assembly comprises a plurality of connecting pieces propped against pin connecting ports on the side edge of the crystal oscillator source, and a mounting area for clamping the crystal oscillator source is formed among the plurality of connecting pieces. And one end of the connecting piece is welded on the corresponding bonding pad, and the other end of the connecting piece is telescopically abutted against the side pin connecting port of the crystal oscillator source. The connecting pieces are divided into two groups and are symmetrically arranged at the pin connecting ports at the two sides of the crystal oscillation source, each group of connecting pieces are arranged in parallel, one end of each connecting piece is fixed on the PCB, and the other end of each connecting piece is telescopic, so that when the crystal oscillation source needs to be fixed, only one group of connecting pieces needs to be inserted into the corresponding side port of the crystal oscillation source, and then the connecting pieces are compressed into the hole grooves, and the connecting pieces can be fixed. Therefore, the area of the installation area is gradually increased, the crystal oscillation source can be placed in the installation area, and the other group of connecting pieces are inserted into the interface on the other side of the crystal oscillation source to finish installation.

Description

Technical Field

[0001] The utility model relates to the technical field of crystal oscillator installation, in particular to an installation structure of a crystal oscillator source. Background Art

[0002] Crystal oscillators in electronic circuits are also divided into two types: passive crystal oscillators and active crystal oscillators. Passive crystal oscillators are non-polar components with 2 pins. They need the help of a clock circuit to generate an oscillation signal and cannot oscillate by themselves. Active crystal oscillators have 4 pins and are a complete oscillator. In addition to quartz crystals, they also have transistors and resistors and capacitors, so they are larger in size.

[0003] The active crystal oscillator packaging structures currently available on the market all install the electrical chip on the main circuit board by welding, and then package the four sides of the chip through the packaging process. In this production method, once the crystal oscillator is welded on the circuit board, it is not easy to replace when the crystal oscillator source needs to be replaced. Forcibly removing the crystal oscillator source by means of fusion welding may damage the crystal oscillator source and may also damage the main circuit board. Utility Model Content

[0004] The utility model aims to provide a mounting structure of a crystal oscillator source, so that the crystal oscillator source is easy to install and replace.

[0005] In order to solve the above technical problems, the utility model adopts the following solutions:

[0006] The present application provides an installation structure for a crystal oscillator source, including a clamping component welded on a pad corresponding to a crystal oscillator welding position on a PCB circuit board, the clamping component including a plurality of connectors abutting against a pin connection port on a side of the crystal oscillator source, a mounting area for clamping the crystal oscillator source is formed between the plurality of connectors, one end of the connector is welded on a corresponding pad, and the other end can be telescopically abutted against a pin connection port on a side of the crystal oscillator source.

[0007] In some specific embodiments, the connecting parts include a bottom rod, one end of the bottom rod is welded to a corresponding pad, and the other end is connected to a sleeve rod. The top of the sleeve rod is connected to a connecting rod. The top of the connecting rod is provided with a hole groove extending along the axial direction. A ejector pin is movably installed in the hole groove. The ejector pin moves axially along the hole groove and extends outside the connecting rod. The ejector pin abuts against the pin connection port on the side of the crystal oscillator source.

[0008] In some specific embodiments, a connecting block is fixed at the bottom of the hole groove, one end of a return spring is fixed to one end of the ejector pin close to the hole groove, and the other end of the return spring is fixed to the connecting block.

[0009] In some specific embodiments, a connecting block is fixed at the bottom of the hole, a push rod is fixed at one end of the ejector pin close to the hole, a return spring is sleeved on the push rod, one end of the return spring is fixedly connected to the ejector pin, and the other end is fixedly connected to the connecting block.

[0010] In some specific embodiments, the bottom bar is an L-shaped bent bar.

[0011] In some embodiments, the tip size of the ejector pin is 0.5 mm.

[0012] In some specific implementations, the number of connectors is the same as the number of connecting pins on the side of the crystal oscillator source and they are installed correspondingly.

[0013] In some specific embodiments, a plurality of connecting members are arranged in parallel.

[0014] Beneficial effects of the utility model:

[0015] The utility model discloses a mounting structure of a crystal oscillator source, wherein a connecting piece can be retractably abutted against a pin connection port on a side of the crystal oscillator source, so that when installing the crystal oscillator source, it is only necessary to abut the side connection pin on one side of the crystal oscillator source against the ejector pin, and then compress the ejector pin into a hole groove, so that the crystal oscillator source is clamped in the mounting area; when the crystal oscillator source needs to be removed or replaced, it is only necessary to compress the ejector pin toward a connecting piece on one side, so that the area of ​​the mounting area becomes larger, so that the crystal oscillator source can be detached, and it is convenient to remove without causing damage to the crystal oscillator source. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A front view of a crystal oscillator source installation structure provided by an embodiment of the utility model;

[0017] Figure 2 A top view of the crystal oscillator source installation structure provided in an embodiment of the utility model;

[0018] Figure 3 A schematic diagram of a crystal oscillator source installation structure provided by an embodiment of the utility model when no crystal oscillator source is installed;

[0019] Figure 4 A schematic diagram of the connecting piece structure provided in an embodiment of the utility model.

[0020] Description of reference numerals:

[0021] 1-connecting part, 11-bottom rod, 12-sleeve rod, 13-connecting rod, 14-hole groove, 15-thrust pin, 16-push rod, 17-connecting block, 18-reset spring, 2-installation area, 3-PCB circuit board, 4-soldering pad, 5-crystal oscillator source. DETAILED DESCRIPTION

[0022] The present invention will be further described in detail below in conjunction with the embodiments and drawings, but the implementation manner of the present invention is not limited thereto.

[0023] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inside", "outside", "front", "back", "top", "bottom", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model.

[0024] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "open", "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] The present invention is described in detail below with reference to the accompanying drawings and in combination with embodiments:

[0026] Embodiment 1:

[0027] like Figures 1 to 4 As shown, this embodiment provides an installation structure of a crystal oscillator source 5, including a clamping component welded on a pad 4 corresponding to the crystal oscillator welding position on a PCB circuit board 3, the clamping component including a plurality of connectors 1 abutting against the side pin connection ports of the crystal oscillator source 5, a mounting area 2 for clamping the crystal oscillator source 5 is formed between the plurality of connectors 1, one end of the connector 1 is welded on the corresponding pad 4, and the other end can be telescopically abutted against the side pin connection port of the crystal oscillator source 5.

[0028] like Figure 3As shown, the side interface of the general crystal oscillator source 5 is about 0.5-0.6mm, so the ejector pin 15 can be selected with a size of 0.5mm. The connectors 1 are divided into two groups, which are symmetrically arranged at the pin connection ports on both sides of the crystal oscillator source 5, and each group of connectors 1 are arranged in parallel. If the crystal oscillator source 5 has four pins, each group is provided with two connectors 1, and each connector 1 corresponds to a pin interface of the crystal oscillator source 5. And because one end of the connector 1 is fixed on the PCB board and the other end is retractable, the area of ​​the installation area 2 formed by the four connectors 1 is smaller than the size of the crystal oscillator source 5. When the crystal oscillator source 5 needs to be fixed, only one group of connectors 1 needs to be inserted into the side interface of the crystal oscillator source 5, and then the connector 1 is compressed into the hole 14, so that the area of ​​the installation area 2 gradually increases and the crystal oscillator source 5 can be placed in the installation area 2, and another group of connectors 1 is inserted into the interface on the other side of the crystal oscillator source 5 to complete the installation. This method is applicable to all crystal oscillators using a 7x5mm package structure. If the crystal oscillator source 5 includes a side interface, only one connector 1 needs to be added to each group of connectors 1.

[0029] Specifically, the connector 1 includes a bottom rod 11, which is an L-shaped bending rod. One end of the bottom rod 11 is welded on the corresponding pad 4, and the other end is fixedly connected to a sleeve rod 12. The top of the sleeve rod 12 is fixedly connected to a connecting rod 13. The top of the connecting rod 13 is provided with a hole groove 14 extending axially. A thimble 15 is movably installed in the hole groove 14. The thimble 15 moves axially along the hole groove 14 and extends to the outside of the connecting rod 13. The thimble 15 abuts against the pin connection port on the side of the crystal oscillator source 5. The bottom rod 11, the sleeve rod 12 and the connecting rod 13 can be connected and formed as a whole. The connector 1 in the present application is made of a metal conductive material, so the crystal oscillator source 5 and the connector 1 can be connected to the circuit on the PCB. In some specific embodiments, the needle size of the thimble 15 is 0.5mm.

[0030] The ejector pin 15 can be movably installed in the hole groove 14 in the following manner: a connecting block 17 is fixed to the bottom of the hole groove 14 , one end of a return spring 18 is fixed to one end of the ejector pin 15 close to the hole groove 14 , and the other end of the return spring 18 is fixed to the connecting block 17 .

[0031] like Figure 4 As shown, the method of movably installing the ejector pin 15 in the hole groove 14 can also be: a connecting block 17 is fixed to the bottom of the hole groove 14, a push rod 16 is fixed to one end of the ejector pin 15 close to the hole groove 14, a return spring 18 is sleeved on the push rod 16, one end of the return spring 18 is fixedly connected to the ejector pin 15, and the other end is fixedly connected to the connecting block 17.

[0032] The usage process of this embodiment:

[0033] When the crystal oscillator source 5 needs to be fixedly installed, only one group of ejector pins 15 needs to be inserted into the side interfaces of the crystal oscillator source 5 respectively, and then the ejector pins 15 are pushed so that the reset springs 18 drive the ejector pins 15 to be compressed into the hole grooves 14, so that the area of ​​the installation area 2 gradually increases until the crystal oscillator source 5 can be placed in the installation area 2. At this time, only the ejector pins 15 of another group of connectors 1 need to be aligned with the side pin connection ports on the other side of the crystal oscillator source 5, and the crystal oscillator source 5 is released. Under the pushing action of the reset springs 18, the side pin connection ports on the other side of the crystal oscillator source 5 abut against the other group of ejector pins 15. At this time, the ejector pins 15 on both sides of the crystal oscillator source 5 fix the crystal oscillator source 5 in the installation area 2.

[0034] When the crystal oscillator source 5 needs to be removed or replaced, the crystal oscillator source 5 only needs to be pushed toward a group of connectors 1 on one side, so that the ejector pins 15 are compressed into the hole grooves 14 until the ejector pins 15 on the other side of the crystal oscillator source 5 are completely leaked out and separated from the crystal oscillator source 5. At this time, the crystal oscillator source 5 can be directly removed, and the connectors 1 on this side will also be restored under the thrust of the reset spring 18.

[0035] It is understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present invention, but the present invention is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A crystal oscillator source installation structure, characterized in that: The invention comprises a clamping assembly welded on a pad (4) corresponding to a crystal oscillator welding position on a PCB circuit board (3), the clamping assembly comprising a plurality of connectors (1) abutting against a side pin connection port of a crystal oscillator source (5), a mounting area (2) for clamping the crystal oscillator source (5) being formed between the plurality of connectors (1), one end of the connector (1) being welded on the corresponding pad (4), and the other end being telescopically abutted against the side pin connection port of the crystal oscillator source (5).

2. The installation structure of a crystal oscillator source according to claim 1, characterized in that: The connecting parts (1) all include a bottom rod (11), one end of the bottom rod (11) is welded to a corresponding welding pad (4), and the other end is connected to a sleeve rod (12), the top of the sleeve rod (12) is connected to a connecting rod (13), the top of the connecting rod (13) is provided with a hole groove (14) extending in the axial direction, a ejector pin (15) is movably installed in the hole groove (14), the ejector pin (15) moves axially along the hole groove (14) to extend outside the connecting rod (13), and the ejector pin (15) abuts against a pin connection port on the side of the crystal oscillator source (5).

3. The installation structure of a crystal oscillator source according to claim 2, characterized in that: A connecting block (17) is fixed at the bottom of the hole groove (14); one end of a return spring (18) is fixed to one end of the ejector pin (15) close to the hole groove (14); and the other end of the return spring (18) is fixed to the connecting block (17).

4. The installation structure of a crystal oscillator source according to claim 2, characterized in that: A connecting block (17) is fixed at the bottom of the hole groove (14); a push rod (16) is fixed at one end of the ejector pin (15) close to the hole groove (14); a return spring (18) is sleeved on the push rod (16); one end of the return spring (18) is fixedly connected to the ejector pin (15), and the other end is fixedly connected to the connecting block (17).

5. The installation structure of a crystal oscillator source according to claim 2, characterized in that The bottom rod (11) is an L-shaped bending rod.

6. The installation structure of a crystal oscillator source according to claim 2, characterized in that: The tip size of the ejector pin (15) is 0.5 mm.

7. The installation structure of a crystal oscillator source according to claim 1, characterized in that: The number of the connecting pieces (1) is the same as the number of the connecting pins on the side of the crystal oscillator source (5) and they are installed correspondingly.

8. The installation structure of a crystal oscillator source according to claim 1, characterized in that: A plurality of connecting members (1) are arranged in parallel.

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