Anti-vibration crystal oscillator system

By introducing flexible support blocks and mass blocks into the crystal oscillator, vibration is absorbed and canceled out, solving the problem of the crystal oscillator's sensitivity to vibration, and achieving effective reduction of vibration and improvement of the stability of crystal oscillator performance.

CN224068624UActive Publication Date: 2026-03-31CHANGSHA TIANQIONG ELECTRONIC TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-19
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

Crystal oscillators are sensitive to vibration, which causes changes in the resonant frequency and affects the performance of the output signal.

Method used

Design an anti-vibration crystal oscillator system, including a circuit board with a crystal oscillator, a mass block, a flexible support block, and a base. The flexible support block is made of rubber or silicone. Vibration is absorbed by the flexible support block and the mass block, reducing the vibration transmitted to the circuit board. The mass block provides inertial reaction force to offset part of the vibration energy.

Benefits of technology

It effectively reduces the impact of vibration on the performance of the crystal oscillator, improves the stability and lifespan of the circuit board, reduces the vibration amplitude, and ensures the stability of the crystal oscillator's output signal.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the field of crystal oscillators, and particularly relates to an anti-oscillation crystal oscillator system which comprises a circuit board with a crystal oscillator, a mass block, a flexible supporting block and a base. The circuit board with the crystal oscillator is arranged on one side of the mass block, and the other side of the mass block is fixed on the base through one or more flexible supporting blocks. The anti-vibration crystal oscillator system provided by the utility model can reduce the vibration of the system transmitted to the circuit board with the crystal oscillator, thereby ensuring the performance of the crystal oscillator.
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Description

Technical Field

[0001] This utility model belongs to the field of crystal oscillators, and specifically relates to an anti-vibration crystal oscillator system. Background Technology

[0002] Oscillators are core components of electronic circuits. Crystal oscillators are widely used due to their low cost and high performance. However, crystal oscillators are generally quite sensitive to vibration. Due to the piezoelectric effect or deformation of the crystal, vibration can cause changes in the resonant frequency and jitter in the oscillation frequency, thus degrading the output signal performance. Therefore, there is an urgent need for an anti-vibration crystal oscillator system to reduce crystal vibration. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an anti-vibration crystal oscillator system that can reduce crystal oscillator vibration.

[0004] This utility model provides an anti-vibration crystal oscillator system, including a circuit board with a crystal oscillator, a mass block, a flexible support block, and a base;

[0005] The circuit board with crystal oscillator is disposed on one side of the mass block, and the other side of the mass block is fixed to the base by one or more of the flexible support blocks.

[0006] Furthermore, multiple flexible support blocks are provided, and the multiple flexible support blocks are arranged in a rectangular array symmetrical structure.

[0007] Furthermore, the flexible support block is made of rubber or silicone.

[0008] Furthermore, the flexible support block is in the shape of a stepped shaft, and a blind hole is provided at the larger end of the stepped section of the flexible support block.

[0009] Furthermore, this anti-vibration crystal oscillator system also includes a flexible support pad, with multiple flexible support blocks integrally mounted on the flexible support pad;

[0010] The flexible support pad has slots in the middle of the positions of multiple flexible support blocks;

[0011] The flexible support pad is provided with a connecting hole that communicates with the blind hole on the flexible support block at the position corresponding to the flexible support block;

[0012] Several flexible limiting blocks are provided on the outer side of the flexible support pad.

[0013] Furthermore, this anti-vibration crystal oscillator system also includes a flexible support pad, wherein the flexible support block includes interconnected drum-shaped blocks and protrusions;

[0014] The bottoms of the drum-shaped block and the protrusion are fixedly connected to the flexible support pad, and the top of the drum-shaped block is used to support and fix the mass block.

[0015] The drum-shaped block and the protrusion are hollow and have air cavities inside. The two air cavities are connected to each other through a connecting channel. The top of the protrusion is provided with an exhaust hole that communicates with the air cavity.

[0016] Furthermore, the circuit board with the crystal oscillator has multiple support pins soldered on it;

[0017] The mass block is provided with mounting holes for multiple support pins, and the support pins are fixed in the mounting holes by epoxy resin.

[0018] The number and arrangement of the support pins correspond to the flexible support block.

[0019] Furthermore, this anti-vibration crystal oscillator system also includes an annular side plate and a cover plate;

[0020] The two ends of the annular side plate are respectively connected to the base and the cover plate. The base, the annular side plate and the cover plate enclose a cavity. The circuit board with crystal oscillator, the mass block and the flexible support block are disposed in the cavity.

[0021] The base is provided with an installation structure for mounting the anti-vibration crystal oscillator system in a fixed position.

[0022] Furthermore, the circuit board with the crystal oscillator is connected to a coaxial cable, a feedthrough capacitor, and a grounding post;

[0023] The annular side plate is provided with at least three through holes, and the coaxial cable, the through-core capacitor and the grounding post are respectively led out of the cavity through one of the through holes;

[0024] A washer is provided between the coaxial line and the corresponding through hole.

[0025] Furthermore, a coaxial cable is connected to the circuit board with the crystal oscillator, and a pin is provided on the base through both ends, through which the coaxial cable is led out to the outside of the base.

[0026] The beneficial effects of this invention are that when the anti-vibration crystal oscillator system is in a vibrating environment, the vibration of the anti-vibration crystal oscillator system is transmitted sequentially through the base, flexible support block, mass block, and the circuit board with the crystal oscillator. When the vibration is transmitted to the flexible support block, the flexible support block absorbs the vibration magnitude to a great extent, thereby reducing the vibration of the circuit board with the crystal oscillator and reducing the impact of vibration on the performance of the crystal oscillator. On the other hand, setting a mass block between the circuit board with the crystal oscillator and the flexible support block can, on the one hand, ensure the fixed stability of the circuit board with the crystal oscillator and avoid the vibration being directly transmitted to the circuit board with the crystal oscillator, which may cause local deformation or fatigue fracture of the solder joints, thus improving its service life. On the other hand, the mass block can provide inertial reaction force during vibration to offset part of the vibration energy, thereby further reducing the vibration amplitude of the circuit board with the crystal oscillator.

[0027] The anti-vibration crystal oscillator system provided by this utility model can reduce the vibration transmitted from the system to the circuit board with the crystal oscillator, thereby ensuring the performance of the crystal oscillator. Attached Figure Description

[0028] Appendix Figure 1 This is a schematic diagram of the structure of this utility model;

[0029] Appendix Figure 2 This is a schematic diagram of the structure of the annular side plate and the cover plate integrally formed in this utility model;

[0030] Appendix Figure 3 This is a bottom view of the base when the annular side plate and cover plate are integrally formed in this utility model;

[0031] Appendix Figure 4 This is a schematic diagram of the structure of the annular side plate and the base integrally formed in this utility model;

[0032] Appendix Figure 5 This is a top view of the base when the annular side plate and the base are integrally formed in this utility model;

[0033] Appendix Figure 6 This is a schematic diagram of the structure of the flexible support block in this utility model when it is a two-stage stepped shaft.

[0034] Appendix Figure 7 This is a bottom view of the flexible support block in this utility model when it is a two-stage stepped axial shape;

[0035] Appendix Figure 8 This is a schematic diagram of the first angle structure when the flexible support block in this utility model is a multi-stage stepped axial shape;

[0036] Appendix Figure 9 This is a schematic diagram of the second angle structure when the flexible support block in this utility model is a multi-stage stepped axial shape;

[0037] Appendix Figure 10 This is a schematic diagram of the first angle structure of the flexible support pad in the first embodiment of this utility model;

[0038] Appendix Figure 11 This is a schematic diagram of the second angle structure of the flexible support pad in the first embodiment of this utility model;

[0039] Appendix Figure 12 This is a schematic diagram of the first angle structure of the flexible support pad plus the drum-shaped block in the second embodiment of this utility model;

[0040] Appendix Figure 13 This is a schematic diagram of the second angle structure of the flexible support pad plus the drum-shaped block in the second embodiment of this utility model;

[0041] Appendix Figure 14 This is a schematic diagram of the structure of the coaxial cable in this utility model when it is led out through the base.

[0042] In the diagram, 1-Circuit board with crystal oscillator; 101-Support pin; 2-Mass block; 201-Mounting hole; 3-Flexible support block; 301-Side protrusion; 302-Blind hole; 303-Drum-shaped block; 304-Protrusion; 305-Air cavity; 306-Connecting channel; 307-Exhaust hole; 308-Reinforcing rib; 4-Base; 401-Threaded hole; 402-Pin; 5-Annular side plate; 501-Through hole; 6-Cover plate; 7-Coaxial cable; 8-Through capacitor; 9-Grounding post; 10-Washer; 11-Bolt; 12-Flexible support pad; 1201-Slot; 1202-Connecting hole; 1203-Flexible limiting block; 1204-Adhesive groove. Detailed Implementation

[0043] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0044] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0045] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0046] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection, an electrical connection, a physical connection, or a wireless communication connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal connection of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0047] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0048] As attached Figure 1 - Appendix Figure 14 As shown, this utility model provides an anti-vibration crystal oscillator system, including a circuit board 1 with a crystal oscillator, a mass block 2, a flexible support block 3, and a base 4;

[0049] The circuit board 1 with crystal oscillator is disposed on one side of the mass block 2, and the other side of the mass block 2 is fixed to the base 4 by one or more of the flexible support blocks 3.

[0050] When the anti-vibration crystal oscillator system is in a vibrating environment, the vibration of the anti-vibration crystal oscillator system will be transmitted sequentially through the base 4, flexible support block 3, mass block 2, and the circuit board 1 with the crystal oscillator. When the vibration is transmitted to the flexible support block 3, the flexible support block 3 will absorb the vibration magnitude to a great extent, thereby reducing the vibration of the circuit board 1 with the crystal oscillator and reducing the impact of vibration on the performance of the crystal oscillator. The mass block 2 is set between the circuit board 1 with the crystal oscillator and the flexible support block 3. On the one hand, it can ensure the fixed stability of the circuit board 1 with the crystal oscillator and avoid the vibration being directly transmitted to the circuit board 1 with the crystal oscillator, which may cause local deformation or fatigue fracture of the solder joints, thus improving its service life. On the other hand, the mass block 2 can provide inertial reaction force during the vibration process to offset part of the vibration energy, thereby further reducing the vibration amplitude of the circuit board 1 with the crystal oscillator.

[0051] The anti-vibration crystal oscillator system provided by this utility model can reduce the vibration transmitted from the system to the circuit board 1 with the crystal oscillator, thereby ensuring the performance of the crystal oscillator.

[0052] In one embodiment, multiple flexible support blocks 3 are provided, forming a rectangular array symmetrical structure. This symmetrical structure allows for uniform load distribution, preventing stress concentration. Furthermore, the multiple flexible support blocks 3 can distribute vibration energy, ensuring uniform absorption of vibrations in all directions and preventing excessive vibration transmission in any one direction. This avoids torsional or eccentric vibrations caused by asymmetry. Additionally, the multiple flexible support blocks 3 reduce the pressure on individual blocks, improving overall system stability. Moreover, the multiple flexible support blocks 3 provide redundancy; even if one fails, the others can maintain the system's basic functions, enhancing reliability.

[0053] In one embodiment, the flexible support block 3 is made of rubber or silicone. Rubber and silicone have good vibration damping effects, and the materials are mature and low in cost, which can ensure the system cost.

[0054] In one embodiment, the mass block 2 adopts a plate-shaped structure, preferably rectangular, which can accommodate the external dimensions of the circuit board 1 with a crystal oscillator.

[0055] In one embodiment, reference is made to the appendix. Figure 6 - Appendix Figure 7 The flexible support block 3 can be a square or cylindrical structure. Preferably, the bottom of the flexible support block 3 has a side protrusion 301. In this case, the flexible support block 3 has a two-stage stepped shaft shape, and the external dimensions of the side protrusion 301 are larger than the main body of the flexible support block 3. The side protrusion 301 is used to connect with the base 4, thereby improving the bonding strength between the flexible support block 3 and the base 4. Preferably, the bottom of the large end of the flexible support block 3 has a blind hole 302, thereby making the flexible support block 3 have an internal hollow structure, improving its deformation capacity and vibration reduction effect. Preferably, refer to the attached diagram. Figure 8 - Appendix Figure 9 The flexible support block 3 is a multi-stage stepped shaft. At this time, at least two side protrusions 301 are set in a stepped shape, and blind holes 302 of stepped piles are correspondingly set inside the flexible support block 3. At this time, the large end of the stepped shaft is fixedly connected to the base 4, and the small end is fixed to the mass block 2. The blind holes 302 are used to improve the deformation capacity and vibration reduction effect of the flexible support block 3.

[0056] In one embodiment, reference is made to the appendix. Figure 10 - Appendix Figure 11To facilitate positioning and use, a flexible support pad 12 is also included. Multiple flexible support blocks 3 are integrally mounted on the flexible support pad 12. This arrangement allows for precise positioning of the multiple flexible support blocks 3 on the base 4 via the flexible support pad 12. The multiple flexible support pads 12 are then fixed to the base 4, improving their stability. By using the flexible support pad 12, the installation and positioning of the multiple flexible support blocks 3 is simplified, and the vibration damping effect is improved. Preferably, the flexible support pad 12 has a slot 1201 in the middle of the positions of the multiple flexible support blocks 3. This slot 1201 improves the deformation capacity and vibration damping effect of the multiple flexible support blocks 3 while saving material. The flexible support pad 12 also has a connecting hole 1202 corresponding to the position of the flexible support block 3, communicating with the blind hole 302 on the flexible support block 3, thereby improving the deformation capacity and vibration damping effect at that location. Preferably, the outer dimension of the flexible support pad 12 is smaller than the outer dimension of the annular side plate 5. In this case, a plurality of flexible limiting blocks 1203 are provided on the outer side of the flexible support pad 12. The plurality of flexible limiting blocks 1203 and the outer side of the flexible support pad 12 are fitted into the annular side plate 5, thereby providing deformation and vibration reduction effects of the flexible support pad 12.

[0057] In another embodiment, refer to the appendix Figure 12 - Appendix Figure 13 It also includes a flexible support pad 12. The flexible support block 3 includes interconnected drum-shaped blocks 303 and protrusions 304. The drum-shaped blocks 303 are made of flexible material at least on their sidewalls, so they can deform during vibration. Preferably, the outer side of the drum-shaped blocks 303 is provided with reinforcing ribs 308 to improve the structural strength of the drum-shaped blocks 303. Preferably, at least two protrusions 304 are arranged in a ring array around the axis of the drum-shaped blocks 303 to improve its symmetry and vibration reduction effect.

[0058] The bottoms of the drum-shaped block 303 and the protrusion 304 are fixedly connected to the flexible support pad 12. Preferably, the drum-shaped block 303 and the protrusion 304 are integrally formed with the flexible support pad 12. The top of the drum-shaped block 303 is used to support and fix the mass block 2. The flexible support pad 12 is set on the base 4.

[0059] The drum-shaped block 303 and the protrusion 304 are hollow and have air cavities 305 inside. The two air cavities 305 are connected to each other through a connecting channel 306. The top of the protrusion 304 is provided with an exhaust hole 307 that communicates with the air cavity 305. When vibration occurs, the relative movement of the mass block 2 and the base 4 will compress or stretch the drum-shaped block 303. At this time, the air cavity 305 inside the drum-shaped block 303 will also be compressed or expanded. Finally, the air cavity 305 inside the drum-shaped block 303 enters the air cavity 305 of the protrusion 304 through the connecting channel 306 and is finally discharged from the exhaust hole 307. Conversely, air is drawn in from the exhaust hole 307. In this embodiment, the vibration damping structure using the drum-shaped block 303 can achieve vibration damping by utilizing its own flexible material, and can also utilize the compression and expansion of air for vibration damping, greatly improving the vibration damping effect. The setting of the protrusion 304 can improve the stability of the support structure of the drum-shaped block 303 on the one hand, and avoid opening the exhaust hole 307 on the drum-shaped block 303 on the other hand, thereby improving the structural strength of the drum-shaped block 303.

[0060] Preferably, an adhesive groove 1204 is provided on the flexible support pad 12, which is consistent with the outer structure of the drum-shaped block 303 and the protrusion 304. Adhesive is poured into the adhesive groove 1204. The bottom of the flexible support pad 12 is bonded to the base 4 through the adhesive groove 1204, which simultaneously achieves a sealed fit between the connecting channel 306 and the two air cavities 305 and the base 4, and improves the fixing stability while simplifying the installation difficulty.

[0061] In one embodiment, the mass block 2 is made of metal, which can ensure the weight of the mass block 2, satisfy its vibration reduction function of inertial reaction force, and also ensure the strength and rigidity of its structure, thereby improving the reliability of supporting the circuit board 1 with crystal oscillator.

[0062] In one embodiment, the circuit board 1 with crystal oscillator is soldered with a plurality of support pins 101;

[0063] The mass block 2 has mounting holes 201 corresponding to multiple support pins 101. The support pins 101 are fixed in the mounting holes 201 with epoxy resin. The epoxy resin provides insulation between the support pins 101 and the mass block 2, and also acts as a damper to absorb vibration energy, further reducing vibration on the crystal-equipped circuit board 1. The crystal-equipped circuit board 1 is connected to the mass block 2 through the support pins 101. The support pins 101 themselves may provide some structural support while allowing slight displacement, avoiding stress caused by hard connections, and can also be used to reduce vibration transmission. In this embodiment, no additional fixing or insulating structures are required for the crystal-equipped circuit board 1 to be suspended and fixed on the mass block 2.

[0064] In one embodiment, the number and arrangement of the support pins 101 correspond to the flexible support block 3. This arrangement allows for a uniform load distribution on the circuit board 1 with the crystal oscillator, improves support stability, and provides redundant support.

[0065] In one embodiment, reference is made to the appendix. Figure 2 - Appendix Figure 5 The anti-vibration crystal oscillator system also includes an annular side plate 5 and a cover plate 6;

[0066] The two ends of the annular side plate 5 are respectively connected to the base 4 and the cover plate 6. The base 4, the annular side plate 5 and the cover plate 6 form a cavity. The circuit board 1 with crystal oscillator, the mass block 2 and the flexible support block 3 are arranged in the cavity. This arrangement can improve the physical protection of the circuit board 1 with crystal oscillator and increase its service life.

[0067] The base 4 is provided with a mounting structure for installing the vibration-damping crystal oscillator system in a fixed position. Specifically, the base 4 is used to install the vibration-damping crystal oscillator system in a fixed position, where vibrations at the fixed position will be transmitted sequentially to the vibration-damping crystal oscillator system through the base 4. Preferably, the mounting structure can be a threaded hole 401 on the base 4, through which bolts can pass to fix the base 4 in the fixed position.

[0068] In one embodiment, reference is made to the appendix. Figure 4 - Appendix Figure 5 The annular side plate 5 is integrally formed with the base 4, and the annular side plate 5 is detachably connected with the cover plate 6. Preferably, the annular side plate 5 and the cover plate 6 are detachably fixed to each other by bolts 11.

[0069] In another embodiment, refer to the appendix Figure 2 - Appendix Figure 3 The annular side plate 5 and the cover plate 6 are integrally formed. The annular side plate 5 and the base 4 are detachably connected. At this time, the base 4 is a flat plate structure. The annular side plate 5 and the base 4 are detachably fixed to each other by bolts 11.

[0070] In one embodiment, the circuit board 1 with crystal oscillator is connected to a coaxial cable 7, a feedthrough capacitor 8, and a grounding post 9, wherein the coaxial cable 7 is used to transmit high-frequency signals, the feedthrough capacitor 8 is used for filtering, and the grounding post 9 is used for grounding.

[0071] The annular side plate 5 is provided with at least three through holes 501, and the coaxial cable 7, the through-core capacitor 8 and the grounding post 9 are respectively led out of the cavity through one of the through holes 501.

[0072] A washer 10 is provided between the coaxial cable 7 and the corresponding through hole 501. The washer 10 serves to seal and dampen vibration, preventing the connection of the coaxial cable 7 from becoming loose. Preferably, the coaxial cable 7 is soldered onto the washer 10 after being led out from the circuit board 1 with the crystal oscillator. Preferably, the annular side plate 5 has a rectangular structure, and at least three through holes 501 are provided on the same side plate of the rectangular structure.

[0073] In another embodiment, a coaxial cable 7 is connected to the circuit board 1 with a crystal oscillator, and a pin 402 extending through both ends is provided on the base 4. The coaxial cable 7 is led out to the outside of the base 4 through the pin 402.

[0074] Reference Appendix Figure 4 The coaxial cable 7 and pins 402 can be configured in multiple sets. In this embodiment, the coaxial cable 7 can be led out through the base 4 to meet the installation requirements of different connection positions of the coaxial cable 7.

[0075] The above description is merely an embodiment and does not constitute any limitation on this utility model. Any person skilled in the art can make many possible variations, modifications, or alterations to the technical solution of this utility model without departing from its scope. Therefore, any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this utility model, without departing from its scope, should fall within the protection scope of this utility model.

Claims

1. An anti-vibration crystal system, characterized by, The anti-vibration crystal oscillator system comprises a circuit board with a crystal oscillator (1), a mass block (2), flexible support blocks (3) and a base (4). The circuit board with a crystal oscillator (1) is arranged on one side of the mass block (2), and the other side of the mass block (2) is fixed to the base (4) through one or more flexible support blocks (3).

2. The shock resistant crystal system of claim 1 wherein, The flexible support blocks (3) are arranged in a plurality of numbers and are arranged in a rectangular array symmetrical structure.

3. The shock resistant crystal system of claim 1 wherein, The flexible support blocks (3) are made of rubber or silica gel.

4. The shock resistant crystal system of any of claims 1-3, wherein, The flexible support blocks (3) are in the shape of stepped shafts, and the stepped large end of each flexible support block (3) is provided with a blind hole (302).

5. The shock resistant crystal system of claim 4 wherein, The anti-vibration crystal oscillator system further comprises a flexible support pad (12), and the plurality of flexible support blocks (3) are integrally arranged on the flexible support pad (12). The flexible support pad (12) is provided with a slot (1201) at the middle of the positions of the plurality of flexible support blocks (3). The flexible support pad (12) is provided with a communication hole (1202) corresponding to the position of each flexible support block (3), which is in communication with the blind hole (302) of the flexible support block (3). The outer side of the flexible support pad (12) is provided with a plurality of flexible limiting blocks (1203).

6. The shock resistant crystal system of any of claims 1-3, wherein, The anti-vibration crystal oscillator system further comprises a flexible support pad (12), and the flexible support block (3) comprises a drum-shaped block (303) and a convex block (304) which are connected to each other. The bottom of each of the drum-shaped block (303) and the convex block (304) is fixedly connected to the flexible support pad (12), and the top of the drum-shaped block (303) is used for supporting and fixing the mass block (2). The drum-shaped block (303) and the convex block (304) are hollowed in the inside to form air cavities (305), and the two air cavities (305) are in communication with each other through a communication channel (306), and the top of the convex block (304) is provided with an exhaust hole (307) which is in communication with the air cavity (305).

7. The shock resistant crystal system of claim 1 wherein, A plurality of support pins (101) are welded on the circuit board with a crystal oscillator (1). The mass block (2) is provided with mounting holes (201) corresponding to the plurality of support pins (101), and the support pins (101) are fixed in the mounting holes (201) through epoxy resin. The number and arrangement of the support pins (101) correspond to the flexible support blocks (3).

8. The shock resistant crystal system of any of claims 1-3, 5, 7, wherein, The anti-vibration crystal oscillator system further comprises a ring-shaped side plate (5) and a cover plate (6). The two ends of the ring-shaped side plate (5) are connected to the base (4) and the cover plate (6) respectively, and the base (4), the ring-shaped side plate (5) and the cover plate (6) form a cavity, and the circuit board with a crystal oscillator (1), the mass block (2) and the flexible support blocks (3) are arranged in the cavity. The base (4) is provided with a mounting structure for mounting the anti-vibration crystal oscillator system to a fixed position.

9. The shock resistant crystal system of claim 8 wherein, A coaxial line (7), a through-hole capacitor (8) and a grounding column (9) are connected to the circuit board with a crystal oscillator (1). The ring-shaped side plate (5) is provided with at least three through holes (501), and the coaxial line (7), the through-hole capacitor (8) and the grounding column (9) are led out of the cavity through one of the through holes (501). A gasket (10) is arranged between the coaxial line (7) and the corresponding through hole (501).

10. The shock resistant quartz crystal system of claim 8, wherein, The circuit board (1) with the crystal oscillator is connected with a coaxial line (7), the base (4) is provided with a pin (402) penetrating through both ends, and the coaxial line (7) is led out to the outside of the base (4) through the pin (402).