Crystal oscillator

Abstract

The utility model belongs to the field of crystal oscillators, and particularly relates to a crystal oscillator, which comprises a mounting bracket, a crystal, a coaxial connector and a coaxial connector vibration damper, and the coaxial connector vibration damper comprises a fixed cover and a buffer pad. The cushion pad comprises a pad body I and a pad body II which are oppositely arranged in an attached mode, through holes I are formed in the pad body I and the pad body II, and a concave cavity is formed in the pad body I; the fixing cover comprises a cavity with an opening in one end, and a through hole II is formed in one end of the cavity. According to the coaxial connector damping device provided by the utility model, the coaxial connector is indirectly fixed on the fixed cover and the to-be-installed position through the pad body I and the pad body II which are made of the elastic deformable material, and the fixed cover is rigidly connected with the to-be-installed position, so that when the to-be-installed position vibrates, the to-be-installed position is prevented from being damaged. Vibration isolation between the coaxial connector and the to-be-installed position can be realized, and vibration of the coaxial connector is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of crystal oscillator, specifically relates to a crystal oscillator. BACKGROUND

[0002] Because the vibration crystal has acceleration effect, therefore the crystal output performance will deteriorate in the vibration occasion, has seriously affected the performance of electronic equipment. Moreover, for the coaxial connector, vibration can also cause the change of internal space size, shape and internal stress, thus causing certain deterioration to signal transmission. Therefore, it is necessary to carry out vibration reduction treatment on the coaxial connector, however, the current damping device is generally a simple plane buffer pad arranged between the coaxial connector and the mounting bracket, and the damping effect is general, and with the passage of time, the buffer pad will also be hardened, so that the damping effect is further reduced. SUMMARY

[0003] The utility model wants to solve the technical problem of providing a crystal oscillator which has simple structure, good damping effect, high service life and long service life.

[0004] The utility model provides a crystal oscillator, including mounting support, crystal, coaxial connector and coaxial connector damping device,

[0005] The mounting support is provided with crystal mounting cavity, and the crystal is arranged on the crystal mounting cavity,

[0006] The mounting hole is arranged on the wall surface of the mounting support and penetrates to the crystal mounting cavity, and the inner wall or the outer wall of the wall surface of the mounting support is located at the position outside the mounting hole as the to-be-mounted position,

[0007] The coaxial connector damping device is arranged on the to-be-mounted position, the coaxial connector is arranged on the coaxial connector damping device, and one end is connected with the crystal,

[0008] The coaxial connector damping device includes a fixed cover and a buffer pad,

[0009] The buffer pad includes pad body I and pad body II arranged in opposite abutment, coaxially arranged with through hole I on the pad body I and the pad body II, the pad body I is provided with a recess cavity communicating with the two through holes I on the side close to the pad body II, the recess cavity is used for embedding the flange of the coaxial connector, and the through hole I is used for penetrating the rod body of the coaxial connector,

[0010] The fixed cover comprises a cavity with an opening at one end, a through hole II is arranged at the end away from the opening, the fixed cover is used to cover the buffer pad through the cavity, fix the buffer pad and the coaxial connector outside the mounting hole at the installation position, and the rod body of the coaxial connector passes through the mounting hole and the through hole II respectively.

[0011] Further, a protrusion I is fixedly arranged on the inner wall of the cavity.

[0012] The outer wall of the pad body I and the pad body II abuts on the protrusion I.

[0013] Further, the protrusion I is arranged in a ring array around the cavity.

[0014] Alternatively, the protrusion I is symmetrically arranged.

[0015] Further, the installation position is provided with a protrusion II towards the concave cavity.

[0016] The outer wall of the pad body I and the pad body II abuts on the protrusion II.

[0017] The inner wall of the cavity is arranged in close contact with the protrusion II.

[0018] Further, the protrusion I is arranged in a ring array around the mounting hole.

[0019] Alternatively, the protrusion I is symmetrically arranged.

[0020] Further, the through hole I is interference fit with the rod body of the coaxial connector.

[0021] Further, the fixed cover comprises a cover body and a mounting plate.

[0022] The opening and the cavity are arranged on the cover body, and the mounting plate is arranged on the side of the cover body located at the opening.

[0023] The fixed cover is detachably fixed with the installation position through the fastener arranged on the mounting plate.

[0024] Further, the crystal is arranged in the crystal mounting cavity through an elastic buffer mechanism.

[0025] The utility model discloses a beneficial effect is, the utility model provides a coaxial connector damping device, makes the coaxial connector through the pad body I and pad body II of elastic deformable material preparation indirectly fixed in fixed lid and the installation position, and fixed lid and installation position rigid connection, when vibrating in the installation position, the vibration on the installation position will not be directly transmitted to the coaxial connector, but is through the damping of the buffer pad and then is transmitted to the coaxial connector, can realize the vibration isolation of coaxial connector and installation position, reduce the vibration of coaxial connector, namely when vibrating in the installation position, reduce the change of the space size, shape and internal stress in the coaxial connector, guarantee the effect of signal transmission.

[0026] In addition, the fixed lid of the utility model can cover the buffer pad, the flange of the coaxial connector, the part of the rod body of the coaxial connector close to the flange and the mounting hole and carry out the fixed on the installation position in the mode of covering, and carry out the physical protection to it, can improve its service life, and the buffer pad can also seal the mounting hole and through hole II, on the one hand can improve the sealing property in the mounting hole of installation position, on the other hand can also improve the sealing property in the cavity, guarantee the service life of buffer pad. BRIEF DESCRIPTION OF DRAWINGS

[0027] ATTACHED Figure 1 It is the structure schematic diagram of one embodiment of the coaxial connector damping device in the utility model;

[0028] ATTACHED Figure 2 It is the structure schematic diagram of one embodiment of the coaxial connector damping device in the utility model; Figure 1 It is the top view of the coaxial connector damping device in the embodiment shown;

[0029] ATTACHED Figure 3 It is the top view of the coaxial connector damping device in the embodiment shown; Figure 1 It is the bottom view of the fixed lid in the embodiment shown;

[0030] ATTACHED Figure 4 It is the structure schematic diagram of another embodiment of the coaxial connector damping device in the utility model;

[0031] ATTACHED Figure 5 It is the structure schematic diagram of the crystal oscillator in the utility model.

[0032] In the drawing, 1-fixed lid;11-cover;111-through hole II;12-mounting plate;121-mounting through hole;13-cavity;14-opening;15-protrusion I;2-buffer pad;21-pad body I;211-cavity;22-pad body II;23-through hole I;3-coaxial connector;31-rod body;32-flange;4-mounting support;41-installation position;42-mounting hole;43-protrusion II;44-crystal installation cavity;5-crystal. DETAILED DESCRIPTION

[0033] 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.

[0034] 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.

[0035] 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.

[0036] 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.

[0037] 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.

[0038] As attached Figure 1 - Appendix Figure 5 As shown, this utility model provides a crystal oscillator, including a mounting bracket 4, a crystal 5, a coaxial connector 3, and the aforementioned coaxial connector vibration damping device;

[0039] The mounting bracket 4 is provided with a crystal mounting cavity 44, and the crystal 5 is disposed on the crystal mounting cavity 44;

[0040] The mounting bracket 4 is provided with a mounting hole 42 penetrating to the crystal mounting cavity 44 on the wall surface of the mounting bracket 4, and the inner wall or the outer wall of the wall surface of the mounting bracket 4 at a position outside the mounting hole 42 is the mounting position 41, preferably, the mounting position 41 is provided on the outer wall of the wall surface of the mounting bracket 4, that is, the fixing cover 1 is arranged outside the crystal mounting cavity 44 of the mounting bracket 4;

[0041] The coaxial connector damping device is arranged on the mounting position 41, and the coaxial connector 3 is arranged on the coaxial connector damping device and connected with the crystal 5 at one end;

[0042] The coaxial connector damping device comprises the fixing cover 1 and the buffer pad 2.

[0043] The buffer pad 2 comprises a pad body I 21 and a pad body II 22 arranged in close contact with each other, both the pad body I 21 and the pad body II 22 are made of a material with elastic variability, coaxial through holes I 23 are arranged on the pad body I 21 and the pad body II 22, a recess cavity 211 is arranged on one side of the pad body I 21 close to the pad body II 22, the recess cavity 211 and the through holes I 23 outside the pad body II 22 form a cladding cavity, the recess cavity 211 is used for embedding the flange 32 of the coaxial connector 3, when the pad body II 22 is arranged in close contact with the pad body I 21, the flange 32 of the coaxial connector 3 is cladded and fixed by the cladding cavity, and the through holes I 23 are used for penetrating the rod body 31 of the coaxial connector 3.

[0044] The fixing cover 1 comprises a cavity 13 with an opening 14 at one end, during installation, the opening 14 is used for sealing and close contact with the mounting position 41, a through hole II 111 is arranged at the end of the cavity 13 away from the opening 14, the fixing cover 1 is used for cladding the buffer pad 2 through the cavity 13, and the buffer pad 2 and the coaxial connector 3 are fixed outside the mounting hole 42 of the mounting position 41, specifically, the cavity 13 fixes the relative close contact of the pad body I 21 and the pad body II 22, so as to stably cladding and close contact the rod body 31 and the flange 32 of the coaxial connector 3, and the rod body 31 of the coaxial connector 3 penetrates the mounting hole 42 and the through hole II 111 respectively, the sizes of the mounting hole 42 and the through hole II 111 are greater than the size of the rod body 31 of the coaxial connector 3, so that the coaxial connector 3 does not directly contact the fixing cover 1 and the mounting position 41 when the coaxial connector 3 is fixed on the mounting position 41 through the coaxial connector damping device.

[0045] The damping device of the coaxial connector makes the coaxial connector 3 indirectly fixed between the fixed cover 1 and the to-be-installed position 41 through the pad body I 21 and the pad body II 22 prepared by the elastically deformable material, the fixed cover 1 is rigidly connected with the to-be-installed position 41, when the to-be-installed position 41 vibrates, the vibration on the to-be-installed position 41 cannot be directly transmitted to the coaxial connector 3, but is transmitted to the coaxial connector 3 after buffering and damping of the buffer pad 2, vibration isolation of the coaxial connector 3 and the to-be-installed position 41 can be realized, and the vibration of the coaxial connector 3 is reduced, that is, when the to-be-installed position 41 vibrates, the change of the space size, shape and internal stress in the coaxial connector 3 is reduced, and the signal transmission effect is guaranteed.

[0046] In addition, the fixed cover 1 of the utility model can coat the buffer pad 2, the flange 32 of the coaxial connector 3, the part of the rod body 31 of the coaxial connector 3 close to the flange 32 and the mounting hole 42 on the to-be-installed position 41 and carries out the physical protection of coating, can improve its service life, and the buffer pad 2 can also seal the mounting hole 42 and the through hole II 111, can improve the sealing property of the mounting hole 42 (crystal installation cavity 44) of the to-be-installed position 41 on one hand, and also can improve the sealing property in the cavity 13, guarantee the service life of the buffer pad 2.

[0047] In one of the embodiments, the protrusion I 15 is fixedly arranged on the inner wall of the cavity 13, and the outer walls of the pad body I 21 and the pad body II 22 abut on the protrusion I 15. By arranging the protrusion I 15, on one hand, the buffer pad 2 and the coaxial connector 3 can be prevented from rotating, the fixing stability of the coaxial connector 3 is improved, on the other hand, the pressing force of the pad body I 21 and the pad body II 22 on the coaxial connector 3 is improved, that is, the wrapping force of the flange 32 of the coaxial connector 3 and the rod body 31 of the coaxial connector 3 wrapped by the two through holes I 23 and the cavity, and the fixing reliability of the buffer pad 2 on the coaxial connector 3 is improved. In addition, the protrusion I 15 of the embodiment is directly arranged on the fixed cover 1, so that the structural improvement on the to-be-installed position 41 can be reduced as much as possible.

[0048] In one of the embodiments, the protrusion I 15 is arranged in a ring array around the cavity 13 in an axial direction, or a plurality of protrusions I 15 are symmetrically arranged. In this way, the centering of the buffer pad 2 can be guaranteed, and the coaxiality of the through hole I 23, the through hole II 111 and the mounting hole 42 can be guaranteed.

[0049] In another embodiment, the to-be-mounted position 41 is provided with a protrusion II 43 towards the concave cavity 211; the outer wall of the cushion body I 21 and the cushion body II 22 abuts on the protrusion II 43; and the inner wall of the cavity 13 is arranged in close contact with the protrusion II 43. In this embodiment, the arrangement of the protrusion II 43 can prevent the cushion body I 21 and the cushion body II 22 from rotating with the coaxial connector 3, improve the fixing stability of the coaxial connector 3, and further improve the pressing force of the cushion body I 21 and the cushion body II 22 on the coaxial connector 3, i.e. the wrapping force of the flange 32 of the coaxial connector 3 and the rod body 31 of the coaxial connector 3, and improve the fixing reliability of the buffer pad 2 on the coaxial connector 3. In addition, the protrusion II 43 of this embodiment is arranged on the to-be-mounted position 41, which can not only realize the above functions, but also can guide the installation of the fixing cover 1, simplify the installation difficulty of the fixing cover 1, and improve the installation stability thereof.

[0050] Preferably, the protrusions I 15 are arranged in a ring shape in an axial direction around the mounting hole 42; or, a plurality of the protrusions I 15 are symmetrically arranged. In this way, the centering of the buffer pad 2 can be ensured, and the coaxiality of the through hole I 23, the through hole II 111 and the mounting hole 42 can be ensured.

[0051] In a preferred embodiment, the protrusions I 15 are fixedly arranged on the inner wall of the cavity 13, the to-be-mounted position 41 is provided with a protrusion II 43 towards the concave cavity 211, and the protrusions I 15 and the protrusion II 43 are staggered. This can further improve the anti-rotation ability and the pressing ability of the buffer pad 2, and can simplify the installation difficulty of the fixing cover 1 and improve the installation stability thereof.

[0052] In one of the embodiments, the through hole I 23 is in interference fit with the rod body 31 of the coaxial connector 3. In this embodiment, the rod body 31 of the coaxial connector 3 can be tightly fixed on the through hole I 23 of the cushion body I 21 and the cushion body II 22, which can further improve the axial movement limiting ability of the coaxial connector 3 by assisting the cooperation of the flange 32 and the wrapping cavity.

[0053] In one of the embodiments, the inner wall of the cavity 13 is in shape adaptation with the outer wall of the cushion body I 21 and the cushion body II 22, so as to ensure the fixing stability of the buffer pad 2 in the cavity 13; and the inner wall of the cavity 13 and the outer wall of the cushion body I 21 and the cushion body II 22 are in circular or regular polygonal shape. Preferably, the inner wall of the cavity 13 and the outer wall of the cushion body I 21 and the cushion body II 22 are in regular polygonal shape, so as to prevent the cushion body I 21 and the cushion body II 22 from rotating in the inner wall of the cavity 13.

[0054] In one of the embodiments, the inner wall of the cavity 211 and the outer wall of the flange 32 are shaped to match each other, which can improve the fixing stability of the two, and preferably a regular polygon is adopted, so as to avoid the rotation of the coaxial connector 3 on the buffer pad 2.

[0055] In one of the embodiments, the fixing cover 1 comprises a cover body 11 and a mounting plate 12.

[0056] The opening 14 and the cavity 13 are arranged on the cover body 11, i.e. the cover body 11 is in a bottle cap structure, the opening 14 is used to provide a mounting opening of the buffer pad 2 and the coaxial connector 3, and the mounting plate 12 is arranged on the side of the cover body 11 located at the opening 14, which is used to adhere the opening 14 to the to-be-mounted position 41, so as to seal the opening 14 through the to-be-mounted position 41 after the buffer pad 2 and the coaxial connector 3 are mounted on the cavity 13.

[0057] The fixing cover 1 is detachably fixed to the to-be-mounted position 41 through the fastener arranged on the mounting plate 12, preferably, the mounting plate 12 is provided with a mounting through hole 121, the fastener is preferably a bolt, and a threaded hole is correspondingly arranged on the to-be-mounted position 41, so that the bolt can be screwed with the threaded hole on the to-be-mounted position 41 through the mounting through hole 121, thereby fixing the mounting plate 12.

[0058] In one of the embodiments, the crystal 5 is arranged in the crystal mounting cavity 44 through an elastic buffering mechanism, preferably, the crystal 5 is fixed on the crystal mounting cavity 44 through the elastic buffering mechanism.

[0059] The utility model also provides a kind of coaxial connector vibration reduction method, using the above coaxial connector vibration reduction device, comprising the following steps:

[0060] When the to-be-mounted position 41 generates vibration, the coaxial connector 3 is buffered and damped by the buffer pad 2, so as to reduce the influence of the to-be-mounted position 41 on the coaxial connector 3.

[0061] The above is only the embodiment, and does not limit the utility model. Any person skilled in the art can make many possible changes, modifications or modifications to the utility model technical solution without departing from the scope of the utility model technical solution, and equivalent embodiments of equivalent changes. Therefore, any simple modification, equivalent change and modification of the above embodiment according to the technical essence of the utility model technical solution shall fall within the scope of protection of the utility model technical solution.

Claims

1. A crystal oscillator characterized by, The mounting bracket (4), the crystal (5), the coaxial connector (3) and the coaxial connector damping device are included. The mounting bracket (4) is provided with a crystal mounting cavity (44), and the crystal (5) is arranged on the crystal mounting cavity (44). The mounting hole (42) is arranged on the wall surface of the mounting bracket (4) and penetrates the crystal mounting cavity (44), and the inner wall or the outer wall of the wall surface of the mounting bracket (4) is located outside the mounting hole (42) and is the installation position (41). The coaxial connector damping device is arranged on the installation position (41), the coaxial connector (3) is arranged on the coaxial connector damping device, and one end is connected with the crystal (5). The coaxial connector damping device includes a fixed cover (1) and a buffer pad (2). The buffer pad (2) includes a pad body I (21) and a pad body II (22) arranged in opposite abutment, coaxial through holes I (23) are arranged on the pad body I (21) and the pad body II (22), a recess cavity (211) is arranged on one side of the pad body I (21) close to the pad body II (22), the recess cavity (211) is used for embedding the flange (32) of the coaxial connector (3), and the through hole I (23) is used for penetrating the rod body (31) of the coaxial connector (3). The fixed cover (1) includes a cavity (13) with an opening (14) at one end, a through hole II (111) is arranged at the end away from the opening (14) of the cavity (13), the fixed cover (1) is used for covering the buffer pad (2) through the cavity (13), the buffer pad (2) and the coaxial connector (3) are fixed outside the mounting hole (42) of the installation position (41), and the rod body (31) of the coaxial connector (3) penetrates the mounting hole (42) and the through hole II (111) with a size greater than that of the rod body (31) of the coaxial connector (3) respectively.

2. The crystal oscillator as claimed in claim 1, wherein the crystal oscillator is characterized by, The convex I (15) is fixedly arranged on the inner wall of the cavity (13). The outer walls of the pad body I (21) and the pad body II (22) abut on the convex I (15).

3. The crystal oscillator as claimed in claim 2, wherein the crystal oscillator is characterized by, The convex I (15) is arranged in a ring array around the cavity (13) in the axial direction. Alternatively, the convex I (15) is symmetrically arranged.

4. The crystal oscillator as claimed in claim 3, wherein the crystal oscillator is characterized by, The installation position (41) is provided with a convex II (43) towards the recess cavity (211). The outer walls of the pad body I (21) and the pad body II (22) abut on the convex II (43). The inner wall of the cavity (13) is arranged in abutment with the convex II (43).

5. The crystal oscillator as claimed in claim 4, wherein the crystal oscillator is characterized by, The convex I (15) is arranged in a ring array around the mounting hole (42) in the axial direction. Alternatively, the convex I (15) is symmetrically arranged.

6. The crystal oscillator as claimed in any one of claims 1 to 5, characterized in that The through hole I (23) is in interference fit with the rod body (31) of the coaxial connector (3).

7. The crystal oscillator as claimed in any one of claims 1 to 5, characterized in that The fixed cover (1) includes a cover body (11) and a mounting plate (12). The opening (14) and the cavity (13) are arranged on the cover body (11), and the mounting plate (12) is arranged on one side of the cover body (11) located away from the opening (14). The fixed cover (1) is detachably fixed with the installation position (41) through the fastener arranged on the mounting plate (12).

8. The crystal oscillator of claim 1 wherein, The crystal (5) is arranged in the crystal mounting cavity (44) through an elastic buffering mechanism.

Images