Paster quartz resonator damping installation structure
By vertically mounting the surface-mount quartz resonator to the PCB board and securing it with multiple solder pads, the acceleration sensitivity problem of the quartz crystal resonator under vibration environment is solved, resulting in improved yield and cost savings.
Patent Information
- Application Number
- CN202422960272.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-03
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2034-12-03
AI Technical Summary
Existing quartz crystal resonators are highly sensitive to acceleration under vibration, resulting in high screening and testing costs and low yield of vibration-resistant crystal oscillators.
A surface-mount quartz resonator is vertically mounted on the PCB board. Multiple pads are set on the PCB board and the resonator is soldered to these pads to counteract the displacement caused by vibration deformation and reduce acceleration sensitivity.
It effectively reduces the acceleration sensitivity of quartz crystal resonators, improves the vibration phase noise pass rate, reduces production costs and testing time, and increases production speed.
Smart Images
Figure CN223528049U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to quartz resonator installation technical field especially relates to a patch quartz resonator shock attenuation mounting structure. BACKGROUND
[0002] In crystal production manufacturing enterprise, all need to use quartz crystal resonator to do frequency selection loop device, because quartz crystal resonator high quality factor and low aging characteristic, the quartz crystal oscillator manufactured has good frequency spectrum and phase noise characteristic, simultaneously because the piezoelectric characteristic of quartz crystal, lead to its very sensitive under vibration environment, therefore reduce the acceleration sensitivity of quartz crystal resonator becomes very important, whether in process design or installation mode, it is the problem that needs to overcome.
[0003] Most of the existing quartz crystal resonator adopts horizontal installation, and the horizontal installation resonator is parallel to the PCB board.
[0004] However, the PCB board will deform under vibration, and the acceleration sensitivity direction of the horizontally installed resonator is sensitive, so in mass production practice, the acceleration sensitivity screening test cost of the anti-vibration crystal oscillator is high, and the yield is very low. UTILITY MODEL CONTENTS
[0005] The utility model discloses a patch quartz resonator shock attenuation mounting structure, solve the acceleration sensitivity screening test cost of the anti-vibration crystal oscillator in prior art is high, and the yield is very low problem.
[0006] To achieve the above object, the utility model provides a patch quartz resonator shock attenuation mounting structure, including PCB board, still including resonator;
[0007] The PCB board has a groove, the groove penetrates the PCB board, and the resonator is installed in the groove and perpendicular to the PCB board.
[0008] Among them, the PCB board has first board pad, the first board pad is located in the top layer of the PCB board, the resonator has first pad, the first pad is located in the side of the resonator, and is welded to the first board pad.
[0009] Among them, the PCB board has second board pad, the second board pad is located in the top layer of the PCB board, and is arranged opposite the first board pad, the resonator has second pad, the second pad is located in the side of the resonator, and is welded to the second board pad.
[0010] The PCB plate has a third plate pad on the bottom layer of the PCB plate, and the resonator has a third pad on the side of the resonator and welded to the third plate pad.
[0011] The PCB plate has a fourth plate pad on the bottom layer of the PCB plate and arranged opposite to the third plate pad, and the resonator has a fourth pad on the side of the resonator and welded to the fourth plate pad.
[0012] The patch quartz resonator shock absorption mounting structure of the utility model, adopt perpendicular to each other, when the PCB plate deformation maximum direction, corresponding crystal resonator its acceleration sensitivity is non-sensitive direction, and when the crystal resonator acceleration is sensitive direction, perpendicular to the minimum direction of the PCB plate deformation, maximum limit reduces the acceleration sensitivity of quartz crystal resonator. The patch quartz resonator and the PCB plate are assembled perpendicular to each other, can offset the displacement generated by the deformation of any structure under vibration;Can effectively reduce the frequency change of quartz crystal resonator due to vibration deformation and resonance on the PCB plate;Improve the vibration phase noise qualification rate of shock resistant crystal oscillator. The resonator qualified under the vibration of the commonly used mounting mode, the vibration result can be further optimized in this way. The improvement of the qualification rate and the vibration result means that the test time of the product and the raw materials are greatly saved in the process of mass production, the production speed is improved, and the production cost is saved. BRIEF DESCRIPTION OF DRAWINGS
[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiment or prior art description will be briefly introduced below.
[0014] Fig. 1 It is the top layer schematic diagram of the PCB plate of the first embodiment of the utility model.
[0015] Fig. 2 It is the bottom layer schematic diagram of the PCB plate of the first embodiment of the utility model.
[0016] Fig. 3 It is the three-dimensional structure schematic diagram of the patch quartz resonator shock absorption mounting structure of the first embodiment of the utility model.
[0017] In the drawing: 101-PCB plate, 102-resonator, 103-groove, 104-first plate pad, 105-first pad, 106-second plate pad, 107-second pad, 108-third plate pad, 109-third pad, 110-fourth plate pad, 111-fourth pad. DETAILED DESCRIPTION
[0018] The embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings, the embodiments described below by referring to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.
[0019] The first embodiment of the present application is:
[0020] Please refer to Figs. 1 to 3 Among them, Fig. 1 is the top view of the PCB 101 of the first embodiment of the present application. Fig. 2 is the bottom view of the PCB 101 of the first embodiment of the present application. Fig. 3 is the three-dimensional structure schematic diagram of the patch quartz resonator damping mounting structure of the first embodiment of the present application.
[0021] The present application provides a kind of patch quartz resonator damping mounting structure, including PCB 101 and resonator 102, the PCB 101 has groove 103, first plate pad 104, second plate pad 106, third plate pad 108 and fourth plate pad 110, the resonator 102 has first pad 105, second pad 107, third pad 109 and fourth pad 111.
[0022] For the specific embodiment, the PCB 101 has a groove 103, the groove 103 penetrates the PCB 101, the resonator 102 is installed in the groove 103, and is perpendicular to the PCB 101.Mount the resonator 102 to the groove 103 structure, solder with soldering tin, take perpendicular to each other, when the PCB 101 is deformed in the maximum direction, the corresponding crystal resonator 102 is non-sensitive to the acceleration sensitivity, and when the acceleration of the crystal resonator 102 is sensitive, it is perpendicular to the deformation direction of the PCB 101 minimum, and the acceleration sensitivity of the quartz crystal resonator 102 is maximized.
[0023] The PCB 101 has a first board pad 104 on the top layer of the PCB 101, the resonator 102 has a first pad 105 on the side of the resonator 102 and is welded to the first board pad 104. The PCB 101 has a second board pad 106 on the top layer of the PCB 101 and is arranged opposite to the first board pad 104, the resonator 102 has a second pad 107 on the side of the resonator 102 and is welded to the second board pad 106. The PCB 101 has a third board pad 108 on the bottom layer of the PCB 101, the resonator 102 has a third pad 109 on the side of the resonator 102 and is welded to the third board pad 108. The PCB 101 has a fourth board pad 110 on the bottom layer of the PCB 101 and is arranged opposite to the third board pad 108, the resonator 102 has a fourth pad 111 on the side of the resonator 102 and is welded to the fourth board pad 110. The first pad 105 of the resonator 102 is welded to the first board pad 104 on the top layer of the PCB 101, the second pad 107 of the resonator 102 is welded to the second board pad 106 on the top layer of the PCB 101, the third pad 109 of the resonator 102 is welded to the third board pad 108 on the bottom layer of the PCB 101, and the fourth pad 111 of the resonator 102 is welded to the fourth board pad 110 on the bottom layer of the PCB 101, so as to fix the crystal resonator 102 and the PCB perpendicular to each other and achieve the anti-shock effect.
[0024] The patch quartz resonator shock mounting structure of the embodiment is perpendicular to each other, and the acceleration sensitivity of the corresponding crystal resonator 102 is not sensitive to the deformation direction of the PCB 101, and is perpendicular to the minimum deformation direction of the crystal resonator 102 when the acceleration of the crystal resonator 102 is sensitive, thereby maximally reducing the acceleration sensitivity of the quartz crystal resonator 102. The patch quartz resonator 102 is perpendicular to the PCB 101, and can offset the displacement caused by the deformation of any structure under vibration; can effectively reduce the frequency change of the quartz crystal resonator 102 caused by vibration deformation and resonance on the PCB 101; and can improve the vibration phase noise qualification rate of the shock crystal oscillator. The resonator 102 qualified under the common mounting mode can be further optimized in the vibration result. The improvement of the qualification rate and the vibration result means that the test time of the product and the raw materials are greatly saved in the process of mass production, the production speed is improved, and the production cost is saved.
[0025] The above only discloses one or more preferred embodiments of the application, and cannot limit the scope of the application. Those skilled in the art can understand that the implementation of all or part of the above embodiments is still within the scope of the application.
Claims
1. A shock absorbing mounting structure for a patch quartz resonator, comprising a PCB board, characterized in that, a resonator is further included; the PCB board has a groove which penetrates the PCB board, and the resonator is mounted in the groove and perpendicular to the PCB board.
2. The shock absorbing mounting structure for a patch quartz resonator according to claim 1, characterized in that, the PCB board has a first board pad which is located on the top layer of the PCB board, and the resonator has a first pad which is located on the side of the resonator and is soldered to the first board pad.
3. The shock absorbing mounting structure for a patch quartz resonator according to claim 2, characterized in that, the PCB board has a second board pad which is located on the top layer of the PCB board and is arranged opposite to the first board pad, and the resonator has a second pad which is located on the side of the resonator and is soldered to the second board pad.
4. The shock absorbing mounting structure for a patch quartz resonator according to claim 3, characterized in that, the PCB board has a third board pad which is located on the bottom layer of the PCB board, and the resonator has a third pad which is located on the side of the resonator and is soldered to the third board pad.
5. The shock absorbing mounting structure for a patch quartz resonator according to claim 4, characterized in that, the PCB board has a fourth board pad which is located on the bottom layer of the PCB board and is arranged opposite to the third board pad, and the resonator has a fourth pad which is located on the side of the resonator and is soldered to the fourth board pad.