High-precision crystal resonator

Abstract

The utility model relates to the technical field of crystal resonators, in particular to a high-precision crystal resonator, which comprises a fixed seat, a base, a positioning mechanism, a quartz crystal, a mounting mechanism and a base cover, the fixed seat is provided with a mounting groove, the base is arranged in the mounting groove, the positioning mechanism is arranged between the fixed seat and the base, and the quartz crystal is arranged in the mounting groove. The fixing seat is arranged on the base and used for positioning the base and the mounting groove, the quartz crystal is arranged on the base, the mounting mechanism is arranged between the quartz crystal and the base and used for mounting and fixing the quartz crystal and the base, and the base cover is pasted on the fixing seat. The two first positioning blocks and the two second positioning blocks can be conveniently controlled to move relatively under the elastic force effect of the torsional spring, so that the base and the quartz crystal are positioned, and the problem that the working effect of the crystal resonator is affected due to the fact that the quartz crystal is prone to position deviation in the installation process in the related technology is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of crystal resonators, in particular to a high-precision crystal resonator. Background Art

[0002] Quartz crystal is a device made by the principle that when the frequency of the electrical signal is equal to the natural frequency of the quartz crystal (or rod), the crystal will resonate due to the piezoelectric effect. It is composed of a quartz crystal (or rod), electrodes, a bracket and a shell, etc. It has outstanding advantages in frequency stabilization, frequency selection and precision timing, and is a key component of crystal oscillators and narrowband filters. As quartz crystal resonators continue to develop towards thin, miniaturized and mid-to-high-end products, the miniaturization of quartz crystals and quartz resonators is still being explored and innovated. Commonly used quartz resonators are disc-type, rod-type and tuning fork-type.

[0003] When a quartz crystal resonator is packaged by SMD, the shaking during SMD packaging often causes the device to shift, resulting in insufficient accuracy of the SMD, which in turn affects the normal use of the resonator and poses a safety hazard.

[0004] In order to facilitate the limiting of the quartz crystal, after searching, a utility model patent with publication number CN217693275U was found, which discloses a high-precision quartz crystal resonator, including a fixed shell and a base, with two slide grooves provided in the fixed shell, a gasket fixedly connected to one side of the inner wall of the slide groove, a spring fixedly connected to the gasket, and a pressing piece fixedly connected to the other end of the spring, four limiting holes provided on the base, a quartz crystal provided on the base, a silver-plated layer provided on the upper and lower sides of the quartz crystal, four clamping blocks provided on the side of the quartz crystal, the clamping blocks are located in the limiting holes, and the four clamping blocks are in contact with the pressing piece, a base cover is provided on the fixed shell, and a plurality of pin lines are provided on the bottom surface of the fixed shell.

[0005] When in use, the above-mentioned prior art can fix the base and the crystal by the interaction force between the elastic force of the spring and the card block, so that the card block and the base are located in the middle part of the mounting shell, thereby avoiding the shaking of the crystal during packaging, thereby improving the installation accuracy of the crystal. However, during use, the four springs need to work together to limit the crystal. The elastic force of the four springs is difficult to keep consistent, so that the crystal is easily displaced under the action of four springs with different elastic forces, thereby affecting the working effect of the crystal resonator. Utility Model Content

[0006] The utility model provides a high-precision crystal resonator, which solves the problem in the related art that the quartz crystal is prone to positional deviation during installation, thus affecting the working effect of the crystal resonator.

[0007] The technical solution of the utility model is as follows: a high-precision crystal resonator, comprising a fixing seat, a base, a positioning mechanism, a quartz crystal, a mounting mechanism and a base cover;

[0008] The fixing seat is provided with a mounting groove;

[0009] The base is arranged in the mounting groove;

[0010] The positioning mechanism is arranged between the fixing seat and the base, and is used for positioning the base and the mounting groove;

[0011] The quartz crystal is arranged on the base;

[0012] The mounting mechanism is disposed between the quartz crystal and the base, and is used to mount and fix the quartz crystal and the base;

[0013] The base cover is bonded to the fixing seat.

[0014] Preferably, the mounting mechanism comprises:

[0015] A card slot, wherein the card slot is provided in plurality, and the plurality of card slots are provided on the base;

[0016] A card block is fixedly arranged on the quartz crystal corresponding to the card slot, and the card block is adapted in shape to the card slot.

[0017] Furthermore, the positioning mechanism includes:

[0018] A first positioning groove, wherein two first positioning grooves are provided, and the two first positioning grooves are opened on both sides of the groove bottom of the installation groove;

[0019] A second positioning groove, wherein two second positioning grooves are provided, the two second positioning grooves are arranged at the groove bottom of the installation groove, and the second positioning groove is located at a side adjacent to the first positioning groove;

[0020] A first positioning block, the first positioning block is slidably arranged at the bottom of the installation groove corresponding to the first positioning groove;

[0021] A second positioning block, the second positioning block is slidably arranged at the bottom of the installation groove corresponding to the second positioning groove;

[0022] A first positioning post, the first positioning post is rotatably disposed on the first positioning block, and the first positioning post extends into the first positioning groove;

[0023] a second positioning post, the second positioning post being rotatably disposed on the second positioning block, and the second positioning post extending into the second positioning slot;

[0024] A relative movement mechanism is disposed in the fixing seat and is used to control the two first positioning posts and the two second positioning posts to move relative to each other.

[0025] Furthermore, the relative movement mechanism includes:

[0026] A first cavity, the first cavity is disposed in the fixing seat, and the first cavity is communicated with the first positioning groove and the second positioning groove respectively;

[0027] A first positioning plate, the first positioning plate being rotatably disposed on the inner bottom wall of the first cavity;

[0028] A first rotating shaft, the first rotating shaft is rotatably arranged on both sides of the first positioning plate;

[0029] A first positioning rod, the first positioning rod is hingedly disposed between the first rotating shaft and the first positioning column;

[0030] A second positioning plate, the second positioning plate being rotatably disposed on an inner top wall of the first cavity;

[0031] A second rotating shaft, the second rotating shaft is rotatably disposed on both sides of the second positioning plate;

[0032] a second positioning rod, the second positioning rod being hingedly disposed between the second rotating shaft and the second positioning column;

[0033] A relative rotation mechanism is provided between the first positioning plate and the second positioning plate, and is used for controlling the first positioning plate and the second positioning plate to rotate relative to each other.

[0034] Furthermore, the relative rotation mechanism comprises:

[0035] A support column, wherein the support column is rotatably disposed between the first positioning plate and the second positioning plate;

[0036] A torsion spring is sleeved on the support column, and two ends of the torsion spring are respectively fixedly connected to the first positioning plate and the second positioning plate.

[0037] On the basis of the above solution, a positioning frame is fixedly provided on the base cover, and a positioning groove is provided on the fixing seat, and the positioning groove is adapted to the shape of the positioning frame.

[0038] The working principle and beneficial effects of the utility model are:

[0039] 1. In the present invention, by setting the installation mechanism, the connection between the quartz crystal and the base can be realized through the cooperation between the card block and the card slot, and then a small amount of conductive glue is injected between the card slot and the card block to complete the installation between the quartz crystal and the base;

[0040] 2. In the utility model, through the setting of the positioning mechanism, the operator moves the first positioning block and the second positioning block and places the base between the first positioning block and the second positioning block, and then loosens the first positioning block and the second positioning block, so that the first positioning block and the second positioning block can clamp and position the opposite side walls of the base respectively under the action of the relative movement mechanism, and then the conductive glue is injected between the base and the bottom of the installation groove to realize the installation of the base and the quartz crystal, while avoiding the problem of position displacement of the quartz crystal caused by the joint action of multiple springs;

[0041] 3. In the present invention, the positioning groove and the positioning frame are provided to facilitate positioning between the base cover and the fixing seat, thereby avoiding positional displacement between the base cover and the fixing seat. Meanwhile, the base cover and the fixing seat can be installed by conductive adhesive.

[0042] 4. In the utility model, by setting up the fixing seat, the base, the positioning mechanism, the quartz crystal, the installation mechanism and the base cover, it is convenient to control the relative movement of the two first positioning blocks and the two second positioning blocks under the elastic force of the torsion spring, so as to position the base and the quartz crystal, thereby solving the problem in the related art that the quartz crystal is prone to position displacement during the installation process and affects the working effect of the crystal resonator. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0044] Figure 1 It is a schematic diagram of the structure of the utility model;

[0045] Figure 2 This is a schematic diagram of the structure of the fixing seat of the utility model;

[0046] Figure 3 This is a schematic diagram of the installation mechanism structure of the utility model;

[0047] Figure 4 This is a schematic diagram of the cross-sectional structure of the fixing seat of the utility model;

[0048] Figure 5 It is a schematic diagram of the positioning mechanism structure of the utility model.

[0049] In the figure: 1. fixing seat; 2. base; 3. quartz crystal; 4. base cover; 5. clamping block; 6. first positioning block; 7. second positioning block; 8. first positioning column; 9. second positioning column; 10. first positioning plate; 11. first positioning rod; 12. second positioning plate; 13. second positioning rod; 14. supporting column; 15. torsion spring; 16. positioning frame; 17. positioning groove. DETAILED DESCRIPTION

[0050] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0051] like Figure 1~Figure 5 As shown, this embodiment proposes a high-precision crystal resonator, including a fixing seat 1, a base 2, a positioning mechanism, a quartz crystal 3, a mounting mechanism and a base cover 4. The fixing seat 1 is provided with a mounting groove, the base 2 is arranged in the mounting groove, the positioning mechanism is arranged between the fixing seat 1 and the base 2, and is used to position the base 2 and the mounting groove, the quartz crystal 3 is arranged on the base 2, the mounting mechanism is arranged between the quartz crystal 3 and the base 2, and is used to install and fix the quartz crystal 3 and the base 2, and the base cover 4 is pasted on the fixing seat 1.

[0052] The installation mechanism includes a card slot and a card block 5. The card slot is provided in plurality and the plurality of card slots are provided on the base 2. The card block 5 is fixedly provided on the quartz crystal 3 corresponding to the card slot, and the card block 5 is adapted to the shape of the card slot.

[0053] Specifically, the operator inserts the card block 5 into the card slot to achieve the connection between the quartz crystal 3 and the base 2, and then injects a small amount of conductive glue between the card slot and the card block 5 to complete the installation between the quartz crystal 3 and the base 2.

[0054] Among them, the positioning mechanism includes a first positioning groove 17, a second positioning groove 17, a first positioning block 6, a second positioning block 7, a first positioning column 8, a second positioning column 9 and a relative movement mechanism. The first positioning groove 17 is set to two, and the two first positioning grooves 17 are opened on both sides of the groove bottom of the installation groove. The second positioning groove 17 is set to two, and the two second positioning grooves 17 are opened at the groove bottom of the installation groove. The second positioning groove 17 is located on an adjacent side of the first positioning groove 17. The first positioning block 6 is slidingly set at the groove bottom of the installation groove corresponding to the first positioning groove 17, and the second positioning block 7 is slidingly set at the groove bottom of the installation groove corresponding to the second positioning groove 17. The first positioning column 8 is rotatably set on the first positioning block 6, and the first positioning column 8 extends into the first positioning groove 17. The second positioning column 9 is rotatably set on the second positioning block 7, and the second positioning column 9 extends into the second positioning groove 17. The relative movement mechanism is set in the fixed seat 1, which is used to control the relative movement of the two first positioning columns 8 and the two second positioning columns 9.

[0055] Specifically, the operator pulls the first positioning block 6 and the second positioning block 7, and then the operator places the base 2 into the installation groove. The operator then releases the first positioning block 6 and the second positioning block 7, so that the two first positioning blocks 6 and the two second positioning blocks 7 can be controlled to move relative to each other through the relative movement mechanism, so that the base 2 can be clamped and positioned by the first positioning block 6 and the second positioning block 7.

[0056] The relative movement mechanism includes a first cavity, a first positioning plate 10, a first rotating shaft, a first positioning rod 11, a second positioning plate 12, a second rotating shaft, a second positioning rod 13 and a relative rotation mechanism. The first cavity is opened in the fixed seat 1, and the first cavity is connected with the first positioning groove 17 and the second positioning groove 17 respectively. The first positioning plate 10 is rotatably arranged on the inner bottom wall of the first cavity, the first rotating shaft is rotatably arranged on both sides of the first positioning plate 10, the first positioning rod 11 is hingedly arranged between the first rotating shaft and the first positioning column 8, and the second positioning plate 12 is rotatably arranged on the inner top wall of the first cavity. The second rotating shaft is rotatably arranged on both sides of the second positioning plate 12, the second positioning rod 13 is hingedly arranged between the second rotating shaft and the second positioning column 9, the relative rotation mechanism is arranged between the first positioning plate 10 and the second positioning plate 12, and is used to control the first positioning plate 10 and the second positioning plate 12 to rotate relative to each other, the relative rotation mechanism includes a support column 14 and a torsion spring 15, the support column 14 is rotatably arranged between the first positioning plate 10 and the second positioning plate 12, the torsion spring 15 is sleeved on the support column 14, and the two ends of the torsion spring 15 are respectively fixedly connected to the first positioning plate 10 and the second positioning plate 12.

[0057] Specifically, under the elastic force of the torsion spring 15, the first positioning plate 10 and the second positioning plate 12 can be controlled to rotate, and at the same time, the two first positioning columns 8 are pulled by the first positioning rod 11 to move relative to each other, and at the same time, the two second positioning columns 9 are pulled by the second positioning rod 13 to move relative to each other, thereby driving the two first positioning blocks 6 and the two second positioning blocks 7 to move relative to each other.

[0058] A positioning frame 16 is fixedly disposed on the base cover 4 , and a positioning groove 17 is formed on the fixing seat 1 . The positioning groove 17 is adapted in shape to the positioning frame 16 .

[0059] Specifically, the operator applies conductive glue on the base cover 4 , and then extends the positioning frame 16 into the positioning groove 17 , thereby achieving positioning and installation between the base cover 4 and the fixing seat 1 .

[0060] In this embodiment, when in use, the operator extends the card block 5 into the card slot to realize the connection between the quartz crystal 3 and the base 2, and then injects a small amount of conductive glue between the card slot and the card block 5 to complete the installation between the quartz crystal 3 and the base 2. Then the operator pulls the first positioning block 6 and the second positioning block 7, and then the operator puts the base 2 into the installation slot. Then the operator releases the first positioning block 6 and the second positioning block 7, and the first positioning plate 10 and the second positioning plate 12 can be controlled to rotate under the elastic force of the torsion spring 15. At the same time, the two first positioning plates are pulled by the first positioning rod 11. The positioning column 8 moves relative to each other, and the two second positioning columns 9 are pulled by the second positioning rod 13 to move relative to each other, thereby respectively driving the two first positioning blocks 6 and the two second positioning blocks 7 to move relative to each other, so that the base 2 can be clamped and positioned by the first positioning block 6 and the second positioning block 7, and then the operator injects conductive glue between the base 2 and the bottom of the installation groove to achieve the installation of the base 2, and then the operator applies conductive glue on the base cover 4, and then the operator extends the positioning frame 16 into the positioning groove 17, thereby achieving the positioning and installation between the base cover 4 and the fixed base 1.

[0061] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-precision crystal resonator, characterized in that: include: A fixing seat (1), wherein the fixing seat (1) is provided with a mounting groove; A base (2), the base (2) being arranged in the mounting groove; A positioning mechanism, the positioning mechanism being arranged between the fixing seat (1) and the base (2) and being used for positioning the base (2) and the mounting groove; A quartz crystal (3), wherein the quartz crystal (3) is arranged on the base (2); A mounting mechanism, the mounting mechanism being arranged between the quartz crystal (3) and the base (2) and being used for mounting and fixing the quartz crystal (3) and the base (2); A base cover (4), the base cover (4) being adhesively mounted on the fixing seat (1); Wherein, the installation mechanism comprises: A card slot, wherein the card slot is provided in plurality, and the plurality of card slots are provided on the base (2); A card block (5), the card block (5) being fixedly arranged on the quartz crystal (3) corresponding to the card slot, and the card block (5) is adapted in shape to the card slot; Wherein, the positioning mechanism comprises: A first positioning groove, wherein two first positioning grooves are provided, and the two first positioning grooves are opened on both sides of the groove bottom of the installation groove; A second positioning groove, wherein two second positioning grooves are provided, the two second positioning grooves are arranged at the groove bottom of the installation groove, and the second positioning groove is located at a side adjacent to the first positioning groove; A first positioning block (6), the first positioning block (6) being slidably arranged at the bottom of the installation groove corresponding to the first positioning groove; A second positioning block (7), the second positioning block (7) being slidably arranged at the bottom of the installation groove corresponding to the second positioning groove; a first positioning column (8), the first positioning column (8) being rotatably disposed on the first positioning block (6), the first positioning column (8) extending into the first positioning groove; a second positioning column (9), the second positioning column (9) being rotatably disposed on the second positioning block (7), the second positioning column (9) extending into the second positioning groove; A relative movement mechanism, the relative movement mechanism being arranged in the fixing seat (1) and used for controlling the two first positioning posts (8) and the two second positioning posts (9) to move relative to each other; Wherein, the relative movement mechanism comprises: A first cavity, the first cavity is disposed in the fixing seat (1), the first cavity being communicated with the first positioning groove and the second positioning groove respectively; A first positioning plate (10), the first positioning plate (10) being rotatably disposed on the inner bottom wall of the first cavity; A first rotating shaft, the first rotating shaft being rotatably arranged on both sides of the first positioning plate (10); A first positioning rod (11), the first positioning rod (11) being hingedly arranged between the first rotating shaft and the first positioning column (8); a second positioning plate (12), the second positioning plate (12) being rotatably disposed on an inner top wall of the first cavity; A second rotating shaft, the second rotating shaft being rotatably arranged on two sides of the second positioning plate (12); a second positioning rod (13), the second positioning rod (13) being hingedly arranged between the second rotating shaft and the second positioning column (9); a relative rotation mechanism, the relative rotation mechanism being arranged between the first positioning plate (10) and the second positioning plate (12) and being used to control the first positioning plate (10) and the second positioning plate (12) to rotate relative to each other; Wherein, the relative rotation mechanism comprises: A support column (14), the support column (14) being rotatably disposed between the first positioning plate (10) and the second positioning plate (12); A torsion spring (15), wherein the torsion spring (15) is sleeved on the support column (14), and two ends of the torsion spring (15) are respectively fixedly connected to the first positioning plate (10) and the second positioning plate (12); Wherein, a positioning frame (16) is fixedly arranged on the base cover (4), and a positioning groove (17) is provided on the fixing seat (1), and the positioning groove (17) is matched in shape to the positioning frame (16).

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