CN219875697U - Crystal resonator based on tuning fork type crystal - Google Patents
Crystal resonator based on tuning fork type crystal Download PDFInfo
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- CN219875697U CN219875697U CN202321237292.1U CN202321237292U CN219875697U CN 219875697 U CN219875697 U CN 219875697U CN 202321237292 U CN202321237292 U CN 202321237292U CN 219875697 U CN219875697 U CN 219875697U
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- 239000013078 crystal Substances 0.000 title claims abstract description 85
- 239000002184 metal Substances 0.000 claims abstract description 175
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 238000004806 packaging method and process Methods 0.000 abstract 1
- 239000010453 quartz Substances 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Abstract
A crystal resonator based on tuning fork type crystals comprises an assembly base and a packaging upper cover, wherein the upper surface of the assembly base is provided with a metal guide piece and an L-shaped metal guide piece; at least two metal pins are arranged on the lower surface of the assembly base; on the assembly base, the positions of the metal guide sheet and the L-shaped metal guide sheet are respectively provided with a conductive through hole penetrating through the assembly base, the L-shaped metal guide sheet and the metal guide sheet are respectively connected with the conductive electrode of the corresponding tuning fork crystal and also connected with one end of the corresponding conductive through hole, and the other end of the corresponding conductive through hole is respectively connected with a metal pin. Compared with the prior art, the utility model replaces the structure of the conductive groove by arranging the standard metal guide sheet, the L-shaped metal guide sheet and the conductive through hole structure on the assembly base, reduces the difficulty of the production process, and simultaneously can flexibly arrange the metal pins to meet the production requirements of different specification standards.
Description
Technical Field
The utility model relates to the field of quartz crystal oscillators, in particular to a crystal resonator based on a tuning fork type crystal.
Background
A crystal resonator, which is a crystal made of a quartz material, is based on the principle that a quartz crystal plate generates a resonance phenomenon when the frequency of an electric signal passing through the crystal is equal to the natural frequency of the quartz crystal, and is often used in an LC oscillating circuit or a filter according to this characteristic. The 32.768k crystal resonator is a crystal resonator with a natural frequency of 32.768k, and the 32.768k crystal resonator is widely applied to various products related to clock functions, and the crystal is also habitually called a tuning fork crystal because the crystal structure is similar to a tuning fork. In the prior art, in order to install tuning fork crystals, a groove or a circuit groove is often formed in a base, and the arrangement is adopted, so that the production process difficulty is greatly improved, and the formed circuit groove is also easy to damage.
Disclosure of Invention
The present utility model is directed to overcoming at least one of the above-mentioned drawbacks of the prior art, and provides a tuning fork crystal-based crystal resonator for reducing difficulty in the production process and facilitating production and installation.
The technical scheme adopted by the utility model is as follows:
the utility model provides
A tuning fork crystal-based crystal resonator includes an assembly base and a package upper cover,
the upper surface of the assembly base is provided with two metal guide sheets which are respectively connected with two conductive electrodes of the tuning fork crystal;
at least two metal pins are arranged on the lower surface of the assembly base;
the assembly base is provided with two metal guide sheets, the positions of the two metal guide sheets are respectively provided with a conductive through hole penetrating through the assembly base, one end of the conductive through hole at the corresponding position of any metal guide sheet is connected with the metal guide sheet, and the other end of the conductive through hole is connected with one metal pin;
one of the metal guide plates is an L-shaped metal guide plate, one end of the L-shaped metal guide plate is connected with a conductive electrode of the corresponding tuning fork type crystal, and one end of the corresponding conductive through hole is connected with the edge where the other end of the L-shaped metal guide plate is located.
The L-shaped metal guide plate and the conductive through hole are used for replacing the structure of the conductive groove, so that the process difficulty of production and preparation can be greatly reduced; in addition, the L-shaped metal guide piece and the conductive through hole have better stability, are not easy to damage, reduce the condition of causing short circuit of the crystal resonator, and improve the service life of the crystal resonator; meanwhile, the L-shaped metal guide sheet forms a corresponding conductive circuit through the shape of the L-shaped metal guide sheet, so that the positions of the corresponding conductive through holes and the metal pins can be arranged at any position of the conductive circuit, the L-shaped metal guide sheet can be more flexibly arranged, and the production requirements of different specification standards are met.
Further, the L-shaped metal guide sheet comprises a contact metal sheet, a connecting metal sheet and a conducting metal sheet; one side of the contact metal sheet is connected with one conductive electrode of the tuning fork type crystal, the other side of the contact metal sheet is connected with one end of the connection metal sheet to form an L-shaped structure, and the other end of the connection metal sheet is connected with the conduction metal sheet;
one end of the corresponding conductive through hole is connected with the conductive metal sheet.
Further, one end of the connection metal sheet is connected to an arbitrary position of the contact metal sheet and an untouched portion of one conductive electrode of the tuning-fork crystal to form an L-shaped structure.
Further, the projections of the two ends of the connecting metal guide sheet on the lower surface of the assembly base are overlapped with the two metal pin parts.
The L-shaped metal guide sheet is connected with the metal sheet to realize a specific conductive circuit, the length of the L-shaped metal guide sheet is matched with the distance between two metal pins on the lower surface of the assembly base, so that a conductive through hole connected with any one of the two metal pins can be contacted with the L-shaped metal guide sheet, the circuit is conducted, and various specification standards are met.
Further, two of the metal pins contacting the conductive through holes are set as conductive pins for electrical connection with an external circuit.
The lattice resonator can correspond to a plurality of specification standards by arranging at least two metal pins, only two metal pins are actually electrically connected with an external circuit, the two metal pins are set as conduction pins, and the two conductive through holes are correspondingly connected with the two conduction pins respectively, so that circuit access of the tuning fork type crystal is realized, and a resonance effect is achieved.
Further, the conducting pins are arranged on the lower surface of the assembly base and are arranged at corresponding positions of opposite angles of the plane rectangular outline of the tuning fork crystal or corresponding positions of two sides of the fork handle. The two cases are set to correspond to the access conditions of the crystal resonators with different specifications. Further, the contact metal sheet and the connection metal sheet are respectively arranged in parallel corresponding to any two intersecting sides of the planar rectangular outer contour of the tuning fork crystal.
Further, the upper surface of the assembly base is also provided with a hollow frame-shaped metal sheet, and the frame-shaped metal sheet is connected with the package upper cover in a package manner;
the metal guide sheet and the L-shaped metal guide sheet are arranged in the hollow structure of the frame-shaped metal sheet.
Further, the plane outline of the assembly base is rectangular or square.
Furthermore, the two metal guide sheets are arranged as L-shaped metal guide sheets, the two L-shaped metal guide sheets are symmetrically arranged relative to the tuning fork type crystal, one side of each L-shaped metal guide sheet is respectively in contact connection with the two conducting poles of the tuning fork type crystal, and the other side of each L-shaped metal guide sheet is respectively in contact connection with the two conducting through holes.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the utility model, the standard metal guide sheet, the L-shaped metal guide sheet and the conductive through hole structure are arranged on the assembly base to replace the structure of the conductive groove, so that the difficulty of the production process is greatly reduced;
the L-shaped metal guide sheet and the conductive through hole have better stability, are not easy to damage, reduce the condition of causing the short circuit of the crystal resonator, and improve the service life of the crystal resonator;
the L-shaped metal guide sheet forms a corresponding conductive circuit through the shape of the L-shaped metal guide sheet, so that the positions of the corresponding conductive through holes and the metal pins can be arranged at any position of the conductive circuit, the L-shaped metal guide sheet can be more flexibly arranged, and the production requirements of different specification standards are met.
Drawings
Fig. 1 is a structural diagram of the present utility model.
Fig. 2 is a top view of the present utility model.
Fig. 3 is a bottom view of the present utility model.
Fig. 4 is a specific structural diagram of an L-shaped metal guide plate according to the present utility model, and the drawing marks: the package comprises a mounting base 100, a tuning fork crystal 200, a package upper cover 300, an L-shaped metal lead 110, a metal lead 120, a conductive via 130, a frame-shaped metal sheet 140, a metal pin 150, a contact metal sheet 111, a connection metal sheet 112 and a conductive metal sheet 113.
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the utility model. For better illustration of the following embodiments, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the actual product dimensions; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
Example 1
As shown in fig. 1, the present embodiment provides a tuning-fork crystal-based crystal resonator, which includes a mounting base 100 and a package upper cover 300, wherein in the production and use, the shape of the planar outline of the mounting base 100 is rectangular, or may be set to other shapes according to actual requirements, and in the present embodiment, the shape of the planar outline of the mounting base 100 is rectangular, and the shape of the package upper cover 300 matches the shape of the mounting base 100;
two metal guide pieces 120 are provided on the assembly base 100, any one of the metal guide pieces 120 may be provided as an L-shaped metal guide piece, the L-shaped metal guide piece 110 may be formed as an L-shaped metal guide piece, and specifically, as shown in fig. 4, the L-shaped metal guide piece includes a contact metal piece 111, a connection metal piece 112, and a conductive metal piece 113, wherein one side of the contact metal piece 111 is connected with one conductive electrode of the tuning fork type crystal, the other side of the contact metal piece 111 is connected with one end of the connection metal piece 112 to form an L-shaped structure, and more specifically, the connection metal piece 112 may be connected at any position of the contact metal piece 111 where the contact portion with the tuning fork type crystal is not formed to form an L-shaped structure; the conductive metal sheet 113 is connected to the other end of the connection metal sheet 112, and the conductive metal sheet 113 is connected to one end of the conductive via. Since the planar outer contour of the tuning fork crystal 200 is rectangular, the two sides of the L-shaped metal guide 110 are respectively parallel to the sides intersecting any two of the planar outer contours of the tuning fork crystal 200, that is, the contact metal sheet 111 and the connection metal sheet 112 are respectively parallel to the sides intersecting any two of the planar outer contours of the tuning fork crystal 200, and thus the L-shaped metal guide 110 can better conform to the shape of the tuning fork crystal 200 and form a conductive line on the upper surface of the mounting base 100, and further, the two sides of the L-shaped metal guide 110 are respectively parallel to the sides intersecting any two of the planar outer contours of the mounting base 100.
Specifically, as shown in fig. 2, the contact metal sheet 111 of the L-shaped metal lead 110 is in contact connection with one conductive electrode of the tuning fork-type crystal 200, and the metal lead 120 is in contact connection with the other conductive electrode of the tuning fork-type crystal 200; as shown in fig. 3, four metal pins 105 are disposed on the lower surface of the assembly base 100, the four metal pins 105 are rectangular, and are disposed at four corners of the lower surface of the assembly base 100 respectively, when in arrangement, projection of the metal guide sheet 120 on the lower surface of the assembly base 100 is ensured to be coincident with one metal pin 105, and projection of the connecting metal sheet 112 of the L-shaped metal guide sheet 110 on the lower surface of the assembly base 100 is simultaneously coincident with two metal pins 105; two conductive through holes 103 penetrating through the assembly base 100 are arranged on the assembly base 100, one conductive through hole 103 is arranged at the position of the metal guide piece 120, one end of the conductive through hole 103 is contacted with the metal guide piece 120, and the other end is contacted with one metal pin 105; the other conductive via 103 is disposed at a corresponding position of the conductive metal sheet 113 of the L-shaped metal guide 110, and in this embodiment, the two conductive vias 103 are disposed at opposite angles, and since the projection of the connection metal sheet 112 of the L-shaped metal guide 110 on the lower surface of the mounting base 100 coincides with the two metal pins, the two conductive vias may be disposed on the same side of the mounting base 100, that is, at corresponding positions of the two sides of the fork handle of the tuning fork crystal 200 on the lower surface of the mounting base 100, and one end of the conductive via 103 is in contact with the conductive metal sheet 113 of the L-shaped metal guide 110, and the other end is in contact with one metal pin 105. Two metal pins 105 in contact with the conductive through holes 103 are set as conductive pins for electrically connecting with an external circuit, and further electrically connecting with two conductive poles of the tuning fork crystal 200, so that the tuning fork crystal 200 generates a resonance effect. In other embodiments, the metal guide 120 may be configured as an L-shaped metal guide 110, so that the upper surface of the assembly base 100 is provided with two L-shaped metal guides 110, the two L-shaped metal guides 110 are symmetrically disposed opposite to the tuning fork crystal 200, the contact metal sheets 111 of the two L-shaped metal guides 110 are respectively connected with the two conductive poles of the tuning fork crystal in a contact manner, the projections of the connection metal sheets 112 on the lower surface of the assembly base 100 are respectively overlapped with the two metal pins 105 and are respectively overlapped with one conductive pin, and the conductive metal sheets 113 of the two L-shaped metal guides 110 are respectively contacted with the two conductive through holes 103, so as to realize the conduction of the circuit.
The upper surface of the assembly base 100 is also provided with a hollow frame-shaped metal sheet 104, and the frame-shaped metal sheet 104 is in package connection with the package upper cover 300; the L-shaped metal guide 110 and the metal guide 120 are disposed within the hollow structure of the frame-shaped metal sheet 104. Specifically, the package upper cover 300 has a concave cover plate structure, and the shape and size of the concave portion are matched with those of the tuning-fork type wafer, so that the tuning-fork type crystal 200 can be well assembled therein, and a sealed space is formed.
Specifically, the inner walls of the conductive through holes 103 are all plated with conductive metal materials, and the conductive through holes 103 are filled with sealing media, wherein the sealing media are non-conductive insulating materials.
It should be understood that the foregoing examples of the present utility model are merely illustrative of the present utility model and are not intended to limit the present utility model to the specific embodiments thereof. Any modification, equivalent replacement, improvement, etc. that comes within the spirit and principle of the claims of the present utility model should be included in the protection scope of the claims of the present utility model.
Claims (10)
1. A tuning fork crystal-based crystal resonator includes an assembly base and a package top cover, characterized in that,
the upper surface of the assembly base is provided with two metal guide sheets which are respectively connected with two conductive electrodes of the tuning fork crystal; at least two metal pins are arranged on the lower surface of the assembly base;
the assembly base is provided with two metal guide sheets, the positions of the two metal guide sheets are respectively provided with a conductive through hole penetrating through the assembly base, one end of the conductive through hole at the corresponding position of any metal guide sheet is connected with the metal guide sheet, and the other end of the conductive through hole is connected with one metal pin;
one of the metal guide plates is an L-shaped metal guide plate, one end of the L-shaped metal guide plate is connected with a conductive electrode of the corresponding tuning fork type crystal, and one end of the corresponding conductive through hole is connected with the edge where the other end of the L-shaped metal guide plate is located.
2. The tuning fork crystal-based crystal resonator according to claim 1, wherein the L-shaped metal guide piece comprises a contact metal piece, a connection metal piece and a conductive metal piece; one side of the contact metal sheet is connected with one conductive electrode of the tuning fork type crystal, the other side of the contact metal sheet is connected with one end of the connection metal sheet to form an L-shaped structure, and the other end of the connection metal sheet is connected with the conduction metal sheet;
one end of the corresponding conductive through hole is connected with the conductive metal sheet.
3. The tuning-fork crystal-based crystal resonator according to claim 2, wherein one end of the connection metal piece is connected to an arbitrary position of the contact metal piece and a non-contact portion of one conductive electrode of the tuning-fork crystal to form an L-shaped structure.
4. A tuning fork crystal-based crystal resonator according to claim 3, wherein the projections of the two ends of the connecting metal guide on the lower surface of the mounting base coincide with two metal pin portions.
5. The tuning fork crystal-based crystal resonator according to claim 4, wherein two of the metal pins in contact with the conductive via are provided as conductive pins for electrical connection with an external circuit.
6. The tuning-fork crystal-based crystal resonator according to claim 5, wherein the conductive pins are provided on the lower surface of the mounting base at corresponding positions diagonally opposite to the planar rectangular contour of the tuning-fork crystal or at corresponding positions on both sides of the fork handle.
7. The tuning-fork crystal-based crystal resonator according to claim 6, wherein the contact metal plate and the connection metal plate are disposed in parallel with respect to any two intersecting sides of the planar rectangular outer contour of the tuning-fork crystal, respectively.
8. The tuning fork crystal-based crystal resonator according to any one of claims 1 to 7, wherein the upper surface of the mounting base is further provided with a hollow frame-shaped metal sheet, and the frame-shaped metal sheet is connected with the package upper cover package;
the metal guide sheet and the L-shaped metal guide sheet are arranged in the hollow structure of the frame-shaped metal sheet.
9. The tuning fork crystal-based crystal resonator according to any one of claims 1 to 7, wherein the planar outer contour of the mounting base is rectangular or square.
10. The tuning-fork crystal-based crystal resonator according to any one of claims 1 to 7, wherein two of the metal leads are L-shaped metal leads, the two L-shaped metal leads are symmetrically arranged with respect to the tuning-fork crystal, one side of the two L-shaped metal leads is in contact connection with two conductive electrodes of the tuning-fork crystal, respectively, and the other side is in contact connection with two conductive vias, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321237292.1U CN219875697U (en) | 2023-05-19 | 2023-05-19 | Crystal resonator based on tuning fork type crystal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321237292.1U CN219875697U (en) | 2023-05-19 | 2023-05-19 | Crystal resonator based on tuning fork type crystal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219875697U true CN219875697U (en) | 2023-10-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321237292.1U Active CN219875697U (en) | 2023-05-19 | 2023-05-19 | Crystal resonator based on tuning fork type crystal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219875697U (en) |
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2023
- 2023-05-19 CN CN202321237292.1U patent/CN219875697U/en active Active
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