Mounting structure of crystal oscillator shell

Abstract

The utility model relates to the field of crystal oscillator processing, and particularly discloses a crystal oscillator shell mounting structure which comprises a crystal oscillator shell, a cover plate, pins, a circuit board, a containing groove and a positioning groove and further comprises a plurality of mounting holes formed in the cover plate, and the number of the mounting holes corresponds to that of the pins. The corresponding mounting holes in each group are coaxial with the pins; the LED lamp further comprises a sleeve which is coaxially and fixedly installed in the installation hole in a sealed mode, the two ends of the sleeve are open, the sleeve is coaxial with the corresponding pin, and the sleeve is filled with an insulating part. The crystal oscillator shell has the effect of improving circuit board short circuit or circuit board looseness caused in the installation process of the crystal oscillator shell.

Description

Technical Field

[0001] The present application relates to the field of crystal oscillator processing, and in particular to a mounting structure of a crystal oscillator housing. Background Art

[0002] A crystal oscillator is an electronic component that can generate a stable high-frequency oscillation signal. It is widely used in many electronic devices, such as computers, communication equipment, radio equipment, etc.

[0003] The crystal oscillator in the related art includes a rectangular crystal housing and a cover plate matched with the crystal housing. A receiving groove is provided in the crystal housing, and a positioning groove is provided on the end surface of the crystal housing, which is indented inward and forms a step with the receiving groove. The positioning groove and the bottom of the receiving groove form a certain height, and the cover plate is embedded in the positioning groove. A circuit board is installed in the receiving groove of the crystal housing. In addition, a plurality of pins are provided on the cover plate, each of which is inserted between the cover plate and the circuit board. One end of the pin passes through the cover plate and is welded to the external circuit board, and the other end of the pin is welded and fixed to the internal circuit board.

[0004] However, during actual use, since the cover and the pin connection are not insulated, a short circuit may occur in the internal electronic components or circuit boards. In addition, since the ends of the pins conduct heat quickly when welded to the external circuit board, the soldering points at the ends of the pins inside the crystal housing may melt, causing the internal circuit boards to loosen. This needs to be improved. Summary of the invention

[0005] In order to improve the problem of circuit board short circuit or circuit board looseness caused during the installation of the crystal oscillator housing, the present application provides a mounting structure for the crystal oscillator housing.

[0006] The installation structure of a crystal oscillator housing provided in the present application adopts the following technical solution:

[0007] A mounting structure of a crystal oscillator housing, comprising a crystal oscillator housing, a cover plate, pins, a circuit board, a containing groove and a positioning groove, and also comprising a plurality of mounting holes provided on the cover plate, wherein the mounting holes correspond to the number of the pins, and each group of corresponding mounting holes is coaxial with the pins;

[0008] It also includes a sleeve coaxially sealed and fixedly installed in the installation hole, both ends of the sleeve are opened, the sleeve is coaxial with the corresponding pin, and the sleeve is filled with an insulating member.

[0009] By adopting the above technical solution, the combination of the sleeve and the insulating member insulates the cover plate from the crystal oscillator housing, thereby effectively improving the problem of short circuit of electronic components or circuit boards inside the crystal oscillator housing.

[0010] Optionally, the insulating member is a glass sintered tube.

[0011] By adopting the above technical solution, the glass sintered tube can withstand the influence of high temperature and corrosive gas, protect the pins, improve the problem of melting of the soldering points of the pin ends inside the crystal oscillator housing due to the rapid heat conduction of the pin ends when welded to the external circuit board, and then causing the internal circuit board to loosen, thereby improving stability.

[0012] Optionally, the height of the sleeve is greater than the thickness of the cover plate, and one end of the sleeve away from the crystal oscillator housing is flush with the surface of the cover plate, and the circuit board abuts against one side of the sleeve away from the cover plate.

[0013] By adopting the above technical solution, the height of the sleeve is set to be greater than the thickness of the cover plate in order to position and limit the circuit board and prevent the circuit board and the cover plate from fitting together.

[0014] Optionally, a connecting component for detachably connecting the cover plate and the crystal oscillator housing is also included.

[0015] By adopting the above technical solution, the detachable connection between the cover plate and the crystal oscillator housing facilitates the disassembly, maintenance or replacement of the two without damaging the housing.

[0016] Optionally, the connecting component includes a column fixed at a corner of the inner wall of the crystal oscillator housing, a first threaded hole is formed on the top of the column, a second threaded hole is formed on the cover plate, and the cover plate and the crystal oscillator housing are threadedly connected through the first threaded hole and the second threaded hole.

[0017] By adopting the above technical solution, the cooperation between the first threaded hole and the second threaded hole enables the cover plate and the crystal oscillator housing to be threadedly fastened and connected, which has a simple structure, reliable connection and convenient assembly and disassembly, and is suitable for connecting thinner parts such as cover plates.

[0018] Optionally, the column is arranged with a smooth transition curve on one side facing the receiving groove.

[0019] By adopting the above technical solution, the smooth transition setting of the curved surface of the column can reduce the wear on the circuit board and also facilitate the vertical installation of the circuit board.

[0020] In summary, the present application includes at least one of the following beneficial technical effects:

[0021] 1. The combination of the sleeve and the insulating part insulates the cover plate from the crystal housing, thereby effectively improving the problem of short circuit of electronic components or circuit boards inside the crystal housing;

[0022] 2. The glass sintered tube can withstand the influence of high temperature and corrosive gas, protect the pins, and improve the problem that the soldering point of the pin end inside the crystal oscillator shell melts due to the fast heat conduction when the pin end is welded to the external circuit board, which in turn causes the internal circuit board to loosen, thereby improving stability;

[0023] 3. The height of the sleeve is set to be greater than the thickness of the cover plate in order to position and limit the circuit board and prevent the circuit board and the cover plate from fitting together. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0025] Figure 2 It is a schematic diagram of the overall structure of the crystal oscillator housing in the embodiment of the present application;

[0026] Figure 3 It is a schematic diagram of the overall structure of the cover plate and the circuit board in the embodiment of the present application.

[0027] Figure 4 It is a schematic diagram of the overall structure of the pin, insulating member and sleeve in the embodiment of the present application.

[0028] Figure numerals: 1. crystal oscillator housing; 2. cover plate; 3. pin; 4. circuit board; 5. receiving groove; 6. positioning groove; 7. mounting hole; 8. insulating member; 9. connecting component; 91. column; 92. first threaded hole; 93. second threaded hole; 10. sleeve. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-4 This application is described in further detail.

[0030] An embodiment of the present application discloses a mounting structure for a crystal oscillator housing.

[0031] Reference Figure 1 and Figure 2 A mounting structure of a crystal oscillator housing includes a crystal oscillator housing 1 and a cover plate 2 matched with the crystal oscillator housing 1. The crystal oscillator housing 1 is provided with a receiving groove 5, and the end surface of the crystal oscillator housing 1 is provided with a positioning groove 6 which is recessed inward and forms a step with the receiving groove 5. The positioning groove 6 forms a certain height with the bottom of the receiving groove 5, the cover plate 2 is embedded in the positioning groove 6, and the crystal oscillator housing 1 and the cover plate 2 enclose a rectangular parallelepiped.

[0032] In the embodiments of this application, refer to Figure 1 and Figure 2A connection assembly 9 for detachably connecting the crystal oscillator housing 1 and the cover plate 2 is provided between the two. Specifically, the connection assembly 9 includes four columns 91 respectively fixed at the four corners of the inner wall of the crystal oscillator housing 1, and the columns 91 are integrally formed with the crystal oscillator housing 1; a first threaded hole 92 is provided on one end of the column 91 close to the cover plate 2, and a second threaded hole 93 matching with the first threaded hole 92 is provided on the cover plate 2. With the cooperation of the first threaded hole 92 and the second threaded hole 93, the cover plate 2 and the crystal oscillator housing 1 are fastened and connected by screws, which has a simple structure, reliable connection, and convenient assembly and disassembly, and is suitable for connecting thinner parts such as the cover plate 2.

[0033] In other feasible embodiments, if the crystal oscillator housing 1 and the cover plate 2 are made of an iron-nickel alloy, the two can also be welded together. Although the cost is higher than that of a threaded connection, the sealing performance is better.

[0034] Reference Figure 1 , Figure 3 and Figure 4 , the crystal oscillator housing also includes a plurality of pins 3 fixed on the cover plate 2 at vertical intervals. The crystal housing 1 is provided with a circuit board 4 in the receiving groove 5. In order to reduce the wear on the circuit board 4 and facilitate the vertical installation of the circuit board 4, the column 91 is provided with a curved and smooth transition on one side of the receiving groove 5. A part of the pin 3 is located outside the cover plate 2 and is welded and fixed to the external circuit board, and another part of the pin 3 extends into the crystal housing 1 and is welded and fixed to the circuit board 4. Further, a plurality of mounting holes 7 are provided on the cover plate 2, the number of the mounting holes 7 is the same as the number of the pins 3, and each group of corresponding mounting holes 7 is coaxial with the pin 3; and a sleeve 10 is also provided, which is coaxially sealed and fixedly installed in the mounting hole 7. The sleeve 10 is a copper sleeve in the embodiment of the present application. Both ends of the sleeve 10 are provided with openings, and the sleeve 10 is coaxial with the corresponding pin 3. The sleeve 10 is filled with an insulating member 8, which is a glass sintered tube in the embodiment of the present application. When installing, the pin 3 is riveted to the cover plate 2 with the glass sintered tube.

[0035] The combination of the sleeve 10 and the glass sintered tube insulates the cover plate 2 and the crystal oscillator housing 1, thereby effectively improving the problem of short circuit of electronic components or circuit board 4 inside the crystal oscillator housing; the reason for choosing a glass sintered tube as the insulating member 8 is that the glass sintered tube can withstand the influence of high temperature and corrosive gas, protect the pin 3, and improve the problem of melting of the welding point of the end of the pin 3 located inside the crystal oscillator housing 1 due to the faster heat conduction when the end of the pin 3 is welded to the external circuit board, thereby causing the internal circuit board 4 to loosen, thereby improving stability.

[0036] In addition, it should be explained that Figure 3The height of the sleeve 10 is greater than the thickness of the cover plate 2, and the end of the sleeve 10 away from the crystal housing 1 is flush with the upper surface of the cover plate 2, and the circuit board 4 is in contact with the side of the sleeve 10 away from the cover plate 2. The height of the sleeve 10 is set to be greater than the thickness of the cover plate 2 in order to position and limit the circuit board 4 and prevent the circuit board 4 from being attached to the cover plate 2.

[0037] The implementation principle of the mounting structure of a crystal oscillator housing in an embodiment of the present application is as follows: a plurality of mounting holes 7 are opened on the cover plate 2, the number of the mounting holes 7 is consistent with the number of the pins 3, and each group of corresponding mounting holes 7 is coaxial with the pins 3; it also includes a sleeve 10 coaxially sealed and fixedly mounted in the mounting hole 7, both ends of the sleeve 10 are open, the sleeve 10 is coaxial with the corresponding pin 3, and the sleeve 10 is filled with an insulating member 8, which is a glass sintered tube. The sleeve 10 and the glass sintered tube cooperate to insulate the cover plate 2 and the crystal housing 1, thereby effectively improving the problem of short circuit of electronic components or circuit boards 4 inside the crystal housing; and the glass sintered tube can withstand the influence of high temperature and corrosive gas, protect the pins 3, improve the problem of melting of the welding point of the end of the pin 3 located inside the crystal housing 1 due to the rapid heat conduction when the end of the pin 3 is welded to the external circuit board, and then causing the internal circuit board 4 to loosen, thereby improving stability.

[0038] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A mounting structure for a crystal oscillator housing, comprising a crystal oscillator housing (1), a cover plate (2), pins (3), a circuit board (4), a receiving groove (5) and a positioning groove (6), characterized in that: It also includes a plurality of mounting holes (7) formed on the cover plate (2), the number of the mounting holes (7) corresponding to the number of the tube pins (3), and each group of corresponding mounting holes (7) is coaxial with the tube pin (3); It also comprises a sleeve (10) coaxially sealed and fixedly mounted in the mounting hole (7), both ends of the sleeve (10) being open, the sleeve (10) being coaxial with the corresponding pin (3), and an insulating member (8) being filled in the sleeve (10).

2. The mounting structure of a crystal oscillator housing according to claim 1, characterized in that: The insulating member (8) is a glass sintered tube.

3. The mounting structure of a crystal oscillator housing according to claim 1, characterized in that: The height of the sleeve (10) is greater than the thickness of the cover plate (2), and one end of the sleeve (10) away from the crystal oscillator housing (1) is flush with the surface of the cover plate (2), and the circuit board (4) is in contact with a side of the sleeve (10) away from the cover plate (2).

4. The mounting structure of a crystal oscillator housing according to claim 1, characterized in that: It also includes a connection component (9) for detachably connecting the cover plate (2) and the crystal oscillator housing (1).

5. The mounting structure of a crystal oscillator housing according to claim 4, characterized in that: The connection assembly (9) comprises a column (91) fixed at a corner of the inner wall of the crystal oscillator housing (1); a first threaded hole (92) is provided on the top of the column (91); a second threaded hole (93) is provided on the cover plate (2); the cover plate (2) and the crystal oscillator housing (1) are threadedly connected via the first threaded hole (92) and the second threaded hole (93).

6. The mounting structure of a crystal oscillator housing according to claim 5, characterized in that: The side of the upright post (91) facing the accommodating groove (5) is arranged in a curved and smooth transition.

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