A quartz crystal resonator

Abstract

The utility model discloses a quartz chip resonator, which relates to the technical field of tuning fork quartz chip assembly, including a bottom plate, two pins and two metal reeds, the ends of the two metal reeds are respectively provided with mounting platforms for fixing the ends of the quartz chip, the two pins are fixed on the bottom plate, the two pins pass through the bottom plate upwards and are respectively connected to the two metal reeds in an electrically conductive manner, and at least one metal reed is provided with a convex strip or groove reinforcing rib. On the basis of the prior art, the applicant has made improvements to the metal reed structure of the horizontal tuning fork quartz chip resonator, and has designed a reinforced structure for the metal reed with a longer length, specifically, a convex strip or groove reinforcing rib is provided on the metal reed, which can effectively improve the assembly and use strength of the metal reed, avoid the bending of the reed, and ensure that the performance of the resonator remains stable.

Description

Technical Field

[0001] The utility model relates to the technical field of tuning fork quartz wafer assembly, in particular to a quartz wafer resonator. Background Art

[0002] A quartz crystal resonator, also known as a quartz crystal resonator or quartz resonator, is an electronic component based on the piezoelectric effect and resonance phenomenon of quartz crystal. The initial application of quartz resonators can be traced back to the early 1930s, when it was used for clock timekeeping. However, the widespread use of quartz in clocks and watches was not realized until the 1960s when quartz resonators were miniaturized. With the continuous development of electronic technology, the advantages of quartz resonators in frequency stabilization, frequency selection and precision timing have gradually emerged, and they have become key components such as crystal oscillators and narrowband filters.

[0003] The horizontal tuning fork quartz chip resonator (hereinafter referred to as the horizontal tuning fork crystal) is a specially designed quartz chip resonator, which is based on the working principle of the tuning fork, but adopts a horizontal structural layout. The working principle of the horizontal tuning fork crystal is also based on the piezoelectric effect of the quartz crystal. When the frequency of the electrical signal is equal to the natural frequency of the quartz chip, the chip will produce a resonance phenomenon, convert the electrical signal into mechanical vibration through the electrode, and convert the vibration into an electrical signal output. For example, the Chinese invention patent "A tuning fork quartz chip assembly structure" with the publication number of CN209151115U discloses a resonator that is essentially a horizontal tuning fork crystal, which has an intensive design, is smaller in size than the traditional vertical tuning fork structure, and has a more reasonable assembly structure. However, this structure also has obvious defects, that is, when improperly assembled or after a period of use, the metal reed is prone to bending and deformation, resulting in a significant decrease in the performance of the resonator.

[0004] In view of this, the applicant has made improvements to the metal reed structure of the horizontal tuning fork quartz crystal resonator based on the existing technology, which can effectively improve the assembly and use strength of the metal reed and ensure that the performance of the resonator remains stable. Utility Model Content

[0005] The purpose of the utility model is to provide a quartz crystal resonator in order to solve the technical problems in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a quartz chip resonator, comprising a base plate, two pins and two metal reeds, the ends of the two metal reeds are respectively provided with mounting platforms for fixing the ends of the quartz chip, the two pins are fixed on the base plate, the two pins pass through the base plate upwards and are respectively conductively connected to the two metal reeds, and at least one of the metal reeds is provided with a convex strip or grooved reinforcing rib.

[0007] As a further solution of the utility model: wiring flanges are respectively arranged on the opposite sides of the two metal springs, and an avoidance notch corresponding to the wiring flange is opened on the other metal spring opposite to the wiring flange; the two wiring flanges are respectively conductively connected to the upper ends of the two pins.

[0008] As a further solution of the utility model: when the length of one metal reed is less than or equal to 1 / 2 of the length of the other metal reed, a convex or grooved reinforcing rib is provided on the long metal reed; when the length of one metal reed is greater than 1 / 2 of the length of the other metal reed, both metal reeds are provided with convex or grooved reinforcing ribs.

[0009] As a further solution of the utility model: one end of the quartz wafer is connected to the mounting platform via a conductive adhesive, and the other end of the quartz wafer is suspended.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] Based on the existing technology, the applicant has made improvements to the metal reed structure of the horizontal tuning fork quartz crystal resonator and designed a reinforced structure for the metal reed with a longer length. Specifically, convex or grooved reinforcing ribs are provided on the metal reed, which can effectively improve the assembly and use strength of the metal reed, avoid the bending of the reed, and ensure that the performance of the resonator remains stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 It is a schematic diagram of the arrangement and structure of two metal springs on the bottom plate in the first and second embodiments of the utility model;

[0014] Figure 3 This is a schematic diagram of the structure of two metal springs in the first embodiment of the utility model;

[0015] Figure 4 This is a schematic diagram of the structure of two metal springs in the second embodiment of the utility model;

[0016] Figure 5 It is a schematic diagram of the arrangement and structure of two metal springs on the bottom plate in the third and fourth embodiments of the utility model;

[0017] Figure 6 This is a schematic diagram of the structure of two metal springs in Embodiment 3 of the present utility model;

[0018] Figure 7 It is a schematic diagram of the structure of two metal springs in the fourth embodiment of the utility model.

[0019] In the figure: 1. Mounting platform; 2. Metal spring; 3. Quartz chip; 4. Base plate; 5. Pins; 6. Reinforcement ribs; 7. Wiring flange; 8. Avoidance gap. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in 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 in 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.

[0021] See also Figure 1 to Figure 7 In the embodiment of the utility model, a quartz crystal resonator comprises a bottom plate 4, two pins 5 and two metal reeds 2, the ends of the two metal reeds 2 are respectively provided with mounting platforms 1 for fixing the ends of the quartz crystal 3, and the mounting platforms 1 are in a stepped shape. The two pins 5 are fixed on the bottom plate 4, and the two pins 5 are respectively conductively connected to the two metal reeds 2 after passing through the bottom plate 4 upwards, and are characterized in that a convex strip or groove type reinforcing rib 6 is provided on at least one metal reed 2.

[0022] Wiring flanges 7 are respectively arranged on opposite sides of the two metal spring pieces 2, and an avoidance notch 8 corresponding to the wiring flange 7 is opened on the other metal spring piece 2 opposite to the wiring flange 7; the two wiring flanges 7 are respectively conductively connected to the upper ends of the two pins 5.

[0023] One end of the quartz wafer 3 is connected to the mounting platform 1 via a conductive adhesive, and the other end of the quartz wafer 3 is suspended. Example 1

[0024] like Figure 2 and 3 As shown, the length of one metal spring 2 is less than or equal to 1 / 2 of the length of the other metal spring 2 , that is, when the two metal springs 2 are obviously arranged with one short and one long, the long metal spring 2 is provided with a convex reinforcing rib 6 . Example 2

[0025] like Figure 2 and 4 As shown, the length of one metal reed 2 is less than or equal to 1 / 2 of the length of the other metal reed 2 , that is, when the two metal reeds 2 are obviously arranged with one short and one long, the long metal reed 2 is provided with a grooved reinforcing rib 6 . Example 3

[0026] like Figure 5 and 6As shown, when the length of one metal spring piece 2 is greater than 1 / 2 of the length of the other metal spring piece 2 , that is, when the lengths of the two metal spring pieces 2 are substantially equal, the two metal spring pieces 2 are both provided with convex reinforcing ribs 6 . Example 4

[0027] like Figure 5 and 7 As shown, when the length of one metal reed 2 is greater than 1 / 2 of the length of the other metal reed 2 , that is, when the lengths of the two metal reeds 2 are substantially equal, the two metal reeds 2 are both provided with grooved reinforcing ribs 6 .

[0028] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A quartz crystal resonator, comprising a base plate (4), two pins (5) and two metal reeds (2), the ends of the two metal reeds (2) are respectively provided with mounting platforms (1) for fixing the ends of the quartz crystal (3), the two pins (5) are fixed on the base plate (4), and the two pins (5) are respectively conductively connected to the two metal reeds (2) after passing through the base plate (4) upwards, wherein: A convex strip or grooved reinforcing rib (6) is provided on at least one metal spring leaf (2).

2. The quartz crystal resonator according to claim 1, characterized in that: Wiring flanges (7) are respectively arranged on opposite sides of the two metal spring sheets (2), and an avoidance notch (8) corresponding to the wiring flange (7) is opened on the other metal spring sheet (2) opposite to the wiring flange (7); the two wiring flanges (7) are respectively conductively connected to the upper ends of the two pins (5).

3. The quartz crystal resonator according to claim 1, characterized in that: When the length of one metal reed (2) is less than or equal to 1 / 2 of the length of the other metal reed (2), a convex stripe or grooved reinforcing rib (6) is provided on the longer metal reed (2); when the length of one metal reed (2) is greater than 1 / 2 of the length of the other metal reed (2), both metal reeds (2) are provided with a convex stripe or grooved reinforcing rib (6).

4. The quartz crystal resonator according to claim 1, characterized in that: One end of the quartz chip (3) is connected to the mounting platform (1) via conductive adhesive, and the other end of the quartz chip (3) is suspended in the air.

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