Tuning fork type quartz crystal resonator

Abstract

The utility model relates to the technical field of quartz crystal resonators, and provides a tuning fork type quartz crystal resonator which comprises a shell and an upper cover, the upper cover covers the top of the shell, a U-shaped quartz crystal is arranged in the shell, a damping assembly is arranged between the U-shaped quartz crystal and the shell, and a fixed insulation assembly is arranged at the bottom of the shell. The side frames are fixed to the surfaces of the two sides in the shell, round rods are fixedly connected into the side frames, the round rods are sleeved with movable frames in a sliding mode, the round rods are sleeved with a pair of damping springs in a connected mode, and the damping springs are located at the upper ends and the lower ends of the movable frames. According to the technical scheme, the problems that two vibration wafers of an existing resonator in the prior art are independent, unstable vibration is easily caused when the wafers mechanically vibrate, and the vibration frequency of the resonator is affected are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of quartz crystal resonators, and specifically to a tuning fork type quartz crystal resonator. Background Art

[0002] The working principle of the quartz crystal resonator base is to use the inverse piezoelectric effect of quartz crystal silicon dioxide and single crystal structure alpha quartz to make a resonant device. At present, the quartz crystal resonator base has become an important component of the future digital information society. Its main market areas are the communication field, industrial and civilian electronic equipment fields; quartz crystal components have the characteristics of high precision and high stability, and are widely used in various equipment, instruments, and electronic products that require frequency stabilization and frequency selection. It is an indispensable key component in today's electronic products. Since the development trend of electronic products is multifunctional; Internet, E-Mail, GPS, photography, video, large-size color LCD screens and other functions are widely used, and circuit board welding has developed from wave soldering to reflow soldering, so surface-mounted and low-height miniaturized products have become the development direction of quartz crystal resonator bases.

[0003] The two vibration chips of the existing resonators on the market are independent of each other. When the chips vibrate mechanically, they are prone to vibration instability and other disadvantages, affecting their vibration frequency.

[0004] Therefore, improvements are made to address the above problems. Utility Model Content

[0005] The utility model provides a tuning fork type quartz crystal resonator, which solves the problem that two vibration chips of the existing resonator in the related art are independent of each other, and when the chips vibrate mechanically, they are prone to vibration instability, which affects the vibration frequency.

[0006] The technical solution of the utility model is as follows:

[0007] A shell and an upper cover, wherein the upper cover is mounted on the top of the shell;

[0008] A U-shaped quartz crystal and a shock absorbing component, wherein the U-shaped quartz crystal is arranged inside the housing, and the shock absorbing component is arranged between the U-shaped quartz crystal and the housing;

[0009] A fixed insulating component, wherein the fixed insulating component is arranged at the bottom of the housing;

[0010] The shock absorbing assembly includes a pair of side frames, which are fixed to the inner and outer surfaces of the shell, and a round rod is fixedly connected inside the side frame. A movable frame is slidably sleeved outside the round rod, and a pair of shock absorbing springs are sleeved outside the round rod. The shock absorbing springs are located at the upper and lower ends of the movable frame.

[0011] As a further technical solution, a mounting hole is provided on the surface of the movable frame, a slot is provided on the inner surface of the mounting hole, an insertion rod is fixedly connected to the inner end face of the U-shaped quartz crystal, the insertion rod is inserted into the mounting hole, a convex layer is provided on the surface of the insertion rod, the convex layer is connected to the slot, and a fixing cap is connected to the top of the insertion rod.

[0012] As a further technical solution, the fixed insulating assembly includes a pair of inner layers, the inner layers are fixed to the inner and outer surface of the shell, a connecting rod is provided at the bottom of the inner layer, and the lower end of the connecting rod passes through the bottom surface of the shell.

[0013] As a further technical solution, a soldering cap is provided at the lower end of the connecting rod, the bottom lead portion of the U-shaped quartz crystal passes through the bottom of the shell, and an insulating sponge is provided at the bottom of the shell.

[0014] As a further technical solution, the slot and the convex layer are overall in an annular arc structure.

[0015] As a further technical solution, the soldering cap is fixedly connected to the bottom surface of the shell by soldering.

[0016] As a further technical solution, the insulating sponge is wrapped around the outside of the bottom lead of the U-shaped quartz crystal and the outside of the insertion rod.

[0017] As a further technical solution, the inner layer side end face is an arc-shaped end face structure, and the inner layer side end face is attached to the U-shaped quartz crystal side end face.

[0018] The working principle and beneficial effects of the utility model are:

[0019] The utility model is provided with a shock absorbing assembly. Through the interaction of structures such as a side frame, a round rod, a movable frame, a shock absorbing spring, a mounting hole and an insertion rod, a U-shaped quartz crystal can be mounted in the movable frame. The movable frame can be supported in a suspended position in the middle by the elastic force of the shock absorbing springs at the upper and lower ends. When vibration occurs, the relative elastic force can effectively buffer the vibration, thereby improving stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0021] Figure 1 It is a schematic diagram of the structure of the utility model;

[0022] Figure 2 This is the axonometric drawing of the utility model;

[0023] Figure 3 This is an axonometric drawing from another perspective of the utility model;

[0024] Figure 4 This is a cross-sectional view of the utility model;

[0025] Figure 5 This is a cross-sectional view from another perspective of the utility model;

[0026] Figure 6 For the utility model Figure 4 A partial enlarged view of part A;

[0027] In the figure: 1. outer shell; 2. upper cover; 3. U-shaped quartz crystal; 4. shock-absorbing assembly; 4-1. side frame; 4-2. round rod; 4-3. movable frame; 4-4. shock-absorbing spring; 4-5. mounting hole; 4-6. slot; 4-7. plug-in rod; 4-8. convex layer; 4-9. fixing cap; 5. fixed insulating assembly; 5-1. inner layer; 5-2. connecting rod; 5-3. soldering cap; 5-4. insulating sponge. DETAILED DESCRIPTION

[0028] 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.

[0029] like Figure 1 to Figure 6 As shown, this embodiment proposes a tuning fork type quartz crystal resonator, including

[0030] A shell 1 and an upper cover 2, wherein the upper cover 2 is mounted on the top of the shell 1;

[0031] A U-shaped quartz crystal 3 and a shock absorbing component 4, wherein the U-shaped quartz crystal 3 is arranged inside the housing 1, and the shock absorbing component 4 is arranged between the U-shaped quartz crystal 3 and the housing 1;

[0032] A fixed insulating component 5, which is arranged at the bottom of the housing 1;

[0033] The shock absorbing assembly 4 includes a pair of side frames 4-1, the side frames 4-1 are fixed to the inner and outer side surfaces of the outer shell 1, a round rod 4-2 is fixedly connected inside the side frames 4-1, the outer sliding sleeve of the round rod 4-2 is connected to a movable frame 4-3, the outer sleeve of the round rod 4-2 is connected to a pair of shock absorbing springs 4-4, the shock absorbing springs 4-4 are located at the upper and lower ends of the movable frame 4-3, a mounting hole 4-5 is provided on the surface of the movable frame 4-3, a card slot 4-6 is provided on the inner surface of the mounting hole 4-5, an insertion rod 4-7 is fixedly connected to the inner end face of the U-shaped quartz crystal 3, the insertion rod 4-7 is inserted and connected in the mounting hole 4-5, a convex layer 4-8 is provided on the surface of the insertion rod 4-7, the convex layer 4-8 is connected in the card slot 4-6, and a fixing cap 4-9 is sleeved on the top of the insertion rod 4-7.

[0034] In this embodiment, in order to achieve the shock absorption effect on the U-shaped quartz crystal 3, a shock absorption component 4 is designed. Side frames 4-1 are arranged on both sides of the interior of the shell 1. A round rod 4-2 is arranged in the side frame 4-1. The outer sliding sleeve of the round rod 4-2 is connected to the movable frame 4-3. A mounting hole 4-5 is opened at the center part of the movable frame 4-3. A card slot 4-6 is opened on the inner surface of the mounting hole 4-5. An insertion rod 4-7 is arranged on the inner bottom of the U-shaped quartz crystal 3. The insertion rod 4-7 can be inserted into the mounting hole 4-5. The surface of the insertion rod 4-7 is provided with a convex layer 4-8, which can be inserted into the card slot 4-6. The connection height of the insertion rod 4-7 is fixed. Two shock absorbing springs 4-4 are arranged on the surface of the round rod 4-2. When vibration occurs, the shock absorption and buffering effect can be achieved through the bidirectional elastic force, thereby improving stability.

[0035] Furthermore, the fixed insulating component 5 includes a pair of inner layers 5-1, the inner layer 5-1 is fixed to the inner and outer surface of the outer shell 1, a connecting rod 5-2 is arranged at the bottom of the inner layer 5-1, the lower end of the connecting rod 5-2 passes through the bottom surface of the outer shell 1, a soldering cap 5-3 is arranged at the lower end of the connecting rod 5-2, the bottom lead part of the U-shaped quartz crystal 3 passes through the bottom of the outer shell 1, and an insulating sponge 5-4 is arranged at the bottom of the inner shell 1.

[0036] In this embodiment, in order to achieve the fixing effect of the outer shell 1 and the upper cover 2, a fixed insulating component 5 is designed, and an inner layer 5-1 is provided on the inner surface of the upper cover 2, and a connecting rod 5-2 is provided at the bottom of the inner layer 5-1. The lower end of the connecting rod 5-2 can pass through the bottom of the outer shell 1, and a solder cap is mounted on the outer end. The soldering cap can be fixedly connected to the connecting rod 5-2 at the bottom by soldering.

[0037] Furthermore, the card slot 4-6 and the convex layer 4-8 are annular arc structures as a whole.

[0038] In this embodiment, the annular arc structure facilitates the convex layer 4-8 to be inserted into the mounting hole 4-5 and snapped into the slot 4-6 for positioning and connection.

[0039] Furthermore, the soldering cap 5 - 3 is fixedly connected to the bottom surface of the housing 1 by soldering.

[0040] In this embodiment, the insertion rod 4-7 can be firmly connected to the bottom of the shell 1 by soldering, so that the shell 1 cannot be opened.

[0041] Furthermore, the insulating sponge 5 - 4 is wrapped around the outside of the bottom lead of the U-shaped quartz crystal 3 and the outside of the insertion rod 4 - 7 .

[0042] In this embodiment, by wrapping the insulating sponge 5-4, the bottom structure inside the shell 1 can have a good partition protection effect, and the stability can be improved through insulation.

[0043] Furthermore, the side end surface of the inner layer 5 - 1 is an arc-shaped end surface structure, and the side end surface of the inner layer 5 - 1 is attached to the side end surface of the U-shaped quartz crystal 3 .

[0044] In this embodiment, the arc-shaped cross section can be slidably fitted on both sides of the U-shaped quartz crystal 3, so that the U-shaped quartz crystal 3 can move vertically upward and slightly during vibration reduction and provide auxiliary support.

[0045] When it is needed, lift the movable frame 4-3 upwards, put the U-shaped quartz crystal 3 into the shell 1, pass the lead through the bottom of the shell 1, then insert the rod 4-7 upwards into the mounting hole 4-5, and then put the fixing cap 4-9 on the top of the rod 4-7, and insert the convex layer 4-8 into the card slot 4-6 and then close the upper cover 2, pass the upper cover 2 through the bottom of the shell 1 through the connecting rod 5-2, and then put the soldering cap 5-3 on the lower end of the connecting rod 5-2, and operate the soldering equipment or soldering pen to fix it. During use, the shock-absorbing spring 4-4 ​​can cooperate with each other to achieve a shock-absorbing effect.

[0046] 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 tuning fork type quartz crystal resonator, characterized in that: include A shell (1) and an upper cover (2), wherein the upper cover (2) is mounted on the top of the shell (1); A U-shaped quartz crystal (3) and a shock absorbing component (4), wherein the U-shaped quartz crystal (3) is arranged inside the housing (1), and the shock absorbing component (4) is arranged between the U-shaped quartz crystal (3) and the housing (1); A fixed insulating component (5), wherein the fixed insulating component (5) is arranged at the bottom of the housing (1); The shock absorbing assembly (4) comprises a pair of side frames (4-1), the side frames (4-1) being fixed to the inner and outer surfaces of the housing (1), a round rod (4-2) being fixedly connected inside the side frames (4-1), a movable frame (4-3) being slidably sleeved outside the round rod (4-2), a pair of shock absorbing springs (4-4) being sleeved outside the round rod (4-2), and the shock absorbing springs (4-4) being located at the upper and lower ends of the movable frame (4-3).

2. A tuning fork type quartz crystal resonator according to claim 1, characterized in that: The surface of the movable frame (4-3) is provided with a mounting hole (4-5), the inner surface of the mounting hole (4-5) is provided with a slot (4-6), the inner end surface of the U-shaped quartz crystal (3) is fixedly connected with an insertion rod (4-7), the insertion rod (4-7) is plugged and connected in the mounting hole (4-5), the surface of the insertion rod (4-7) is provided with a convex layer (4-8), the convex layer (4-8) is connected in the slot (4-6), and the top of the insertion rod (4-7) is sleeved and connected with a fixing cap (4-9).

3. A tuning fork type quartz crystal resonator according to claim 2, characterized in that: The fixed insulating component (5) comprises a pair of inner layers (5-1), the inner layers (5-1) being fixed to the inner and outer surfaces of the outer shell (1), a connecting rod (5-2) being arranged at the bottom of the inner layer (5-1), and the lower end of the connecting rod (5-2) passing through the bottom surface of the outer shell (1).

4. A tuning fork type quartz crystal resonator according to claim 3, characterized in that: A soldering cap (5-3) is provided at the lower end of the connecting rod (5-2), the bottom lead portion of the U-shaped quartz crystal (3) passes through the bottom of the housing (1), and an insulating sponge (5-4) is provided at the inner bottom of the housing (1).

5. A tuning fork type quartz crystal resonator according to claim 2, characterized in that: The clamping groove (4-6) and the convex layer (4-8) are in an annular arc structure as a whole.

6. A tuning fork type quartz crystal resonator according to claim 4, characterized in that: The soldering cap (5-3) is fixedly connected to the bottom surface of the housing (1) by soldering.

7. A tuning fork type quartz crystal resonator according to claim 4, characterized in that: The insulating sponge (5-4) is wrapped around the outside of the bottom lead of the U-shaped quartz crystal (3) and the outside of the insertion rod (4-7).

8. A tuning fork type quartz crystal resonator according to claim 3, characterized in that: The side end surface of the inner layer (5-1) is an arc-shaped end surface structure, and the side end surface of the inner layer (5-1) is attached to the side end surface of the U-shaped quartz crystal (3).

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