A patch-type quartz crystal resonator

Abstract

This utility model relates to quartz crystal resonators, specifically a surface-mount quartz crystal resonator, comprising a circuit board, a base plate, a quartz crystal resonator, and a housing. The base plate is fixed to the upper surface of the circuit board, and the quartz crystal resonator is located above the base plate. The housing is fastened to the base plate, with the quartz crystal resonator located inside the housing. The base plate has a groove, and strip-shaped grooves are provided around the groove. The cross-section of the strip-shaped grooves is trapezoidal. A sealing strip is provided around the bottom surface of the housing, and the sealing strip has an inverted trapezoidal cross-section. The sealing strip matches the strip-shaped grooves. A first fastening member is provided on the housing, and a second fastening member is provided on the base plate to cooperate with the first fastening member. This surface-mount quartz crystal resonator of the utility model has a sealable condition to prevent internal moisture damage. In addition, the housing can be disassembled for easy replacement of the internal sheet-like quartz crystal structure.

Description

Technical Field

[0001] This utility model relates to quartz crystal resonators, specifically to a patch-type quartz crystal resonator. Background Technology

[0002] Quartz crystal resonators utilize the high stability of quartz crystals to provide a precise frequency reference for circuits. Their core is a quartz wafer, which is manufactured through a cutting process; different cuts affect the frequency-temperature characteristics. The wafer is then plated with electrodes. They are widely used in communication equipment and sensors. However, current quartz crystal resonators are manufactured and used with an outer shell on the quartz crystal. This shell protects the crystal and provides waterproofing and dustproofing. Moisture can damage the crystal, causing frequency shifts or increased losses. Current technologies require an integrated, sealed shell to achieve these functions. If the internal quartz crystal is damaged and needs replacement, the entire resonator must be replaced because the outer shell cannot be disassembled. Therefore, it is necessary to develop a quartz crystal resonator with a easily removable outer shell, while still providing waterproofing, moisture resistance, and dustproofing. Utility Model Content

[0003] To address the aforementioned problems, the main objective of this invention is to provide a surface-mount quartz crystal resonator that is sealable to prevent internal moisture damage. Additionally, the outer casing can be disassembled for easy replacement of the internal sheet-like quartz crystal structure.

[0004] To achieve the above objectives, this utility model provides a surface-mount quartz crystal resonator, including a circuit board, a base plate, a quartz crystal resonator, and a housing. The base plate is fixed to the upper surface of the circuit board, the quartz crystal resonator is located above the base plate, the housing is fastened to the base plate, and the quartz crystal resonator is located inside the housing. The base plate has a groove, and strip grooves are provided around the groove. The cross-section of the strip grooves is trapezoidal. A sealing strip is provided around the bottom surface of the housing. The cross-section of the sealing strip is inverted trapezoidal. The sealing strip and the strip grooves are matched. A first fastening member is provided on the housing, and a second fastening member is provided on the base plate to cooperate with the first fastening member.

[0005] Preferably, the first fastening element includes a first mounting groove, a pressing spring, and an upper fastener.

[0006] Preferably, the first mounting groove is located at the bottom side of the housing, the pressing spring is fixed in the first mounting groove, the outer end of the pressing spring is connected to the rear end of the upper fastener, and the front end of the upper fastener is provided with a first oblique protrusion structure.

[0007] Preferably, the second fastening element includes a second mounting groove, a through hole, a connecting rod, a compression spring, and a lower fastener.

[0008] Preferably, the second mounting groove is located on the base plate and on the outer periphery of the groove, the inner end of the perforation communicates with the second mounting groove, the outer end is located on the side of the base plate, and the connecting rod is located inside the perforation.

[0009] Preferably, the compression spring is located in the second mounting groove and sleeved on the outer periphery of the connecting rod, the lower fastener is located in the second mounting groove, and the rear end of the lower fastener is connected to one end of the compression spring, and the front end of the lower fastener is provided with a second oblique protrusion structure.

[0010] Preferably, the outer end of the connecting rod is provided with a pull member, which is used to pull the connecting rod.

[0011] The beneficial effects of this utility model through the above technical solution include:

[0012] (1) During use, the surface-mount quartz crystal resonator of this utility model has a sealed shell, which can better protect the quartz crystal resonator inside the shell and prevent moisture from entering and causing damage.

[0013] (2) In addition, the outer shell of the quartz crystal resonator of this utility model is not welded. The outer shell can be closed or opened by the cooperation of the first fastening part and the second fastening part. Disassembly is simple and it is convenient to replace the quartz crystal resonator inside. Attached Figure Description

[0014] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0015] Figure 1 This is a schematic diagram of the surface-mount quartz crystal resonator of this utility model.

[0016] Figure 2 This is a schematic diagram of the disassembled structure of the patch-type quartz crystal resonator of this utility model.

[0017] Figure 3 This invention relates to a surface-mount quartz crystal resonator. Figure 2 A schematic diagram of the cross-section of AA' in the diagram.

[0018] Figure 4 This is a partial structural schematic diagram of the first fastening component of the patch-type quartz crystal resonator of this utility model.

[0019] Figure 5 This is a partial structural schematic diagram of the second fastening component of the patch-type quartz crystal resonator of this utility model.

[0020] Explanation of reference numerals in the attached figures

[0021] 10. Circuit board; 20. Base plate; 21. Groove; 22. Strip groove; 30. Housing; 31. Sealing strip; 40. First fastener; 41. First mounting groove; 42. Pressing spring; 43. Upper fastener; 431. First oblique protrusion structure; 50. Second fastener; 51. Second mounting groove; 52. Through hole; 53. Connecting rod; 531. Pulling member; 54. Compression spring; 55. Lower fastener; 551. Second oblique protrusion structure. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Many specific details are set forth in the following description to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0023] like Figures 1-5 The attached figures show the relevant drawings of the patch-type quartz crystal resonator of this utility model. The specific embodiments are now described in detail with reference to the drawings.

[0024] This utility model provides a surface-mount quartz crystal resonator, comprising a circuit board 10, a base plate 20, a quartz crystal resonator (not shown in the figure), and a housing 30. The base plate 20 is fixed to the upper surface of the circuit board 10, and the housing 30 is fastened to the base plate 20. The quartz crystal resonator is located above the base plate 20 and inside the housing 30. Specifically, the base plate 20 has a groove 21, and the quartz crystal resonator is located in the groove 21. Slots 22 are provided around the groove 21, and the cross-section of the slots 22 is trapezoidal. A sealing strip is provided around the bottom surface of the housing 30. 31. The cross-section of the sealing strip 31 is an inverted trapezoidal structure. The sealing strip 31 matches the strip groove 22. The sealing strip 31 can deform and is pressed into the strip groove 22. In addition, the outer shell 30 is provided with a first fastening member 40 and the bottom plate 20 is provided with a second fastening member 50. The first fastening member 40 and the second fastening member 50 cooperate to fix the outer shell 30 on the bottom plate 20. At the same time, the mutual contact between the sealing strip 31 and the strip groove 22 makes the interior of the outer shell 30 closed. In other embodiments, the air inside the outer shell 30 can be evacuated or filled with nitrogen or other dry gases.

[0025] Specifically, the first fastening member 40 of this utility model is provided with a first mounting groove 41, a pressing spring 42 and an upper fastener 43. The first mounting groove 41 is located at the bottom side of the outer shell 30. The inner end of the pressing spring 42 is fixed in the first mounting groove 41. The outer end of the pressing spring 42 is connected to the rear end of the upper fastener 43. The front end of the upper fastener 43 is provided with a first oblique protrusion structure 431.

[0026] In addition, the second fastening member 50 of this utility model is provided with a second mounting groove 51, a through hole 52, a connecting rod 53, a compression spring 54 and a lower fastener 55. The second mounting groove 51 is located on the base plate 20 and on the outer periphery of the groove 21. The inner end of the through hole 52 communicates with the second mounting groove 51, and the outer end is located on the side of the base plate 20. The connecting rod 53 is located in the through hole 52. The compression spring 54 is located in the second mounting groove 51 and is sleeved on the outer periphery of the connecting rod 53. The lower fastener 55 is located in the second mounting groove 51, and the rear end of the lower fastener 55 is connected to one end of the compression spring 54. The front end of the lower fastener 55 is provided with a second oblique protrusion structure 551. The outer end of the connecting rod 53 is provided with a puller 531, which is used to pull the connecting rod 53.

[0027] In other embodiments, there are multiple first fastening members 40 and second fastening members 50. The working principle is as follows: when the outer shell 30 is pressed down onto the base plate 20, the first oblique protrusion structure 431 of the upper fastening member 43 abuts against the second oblique protrusion structure 551 on the lower fastening member 55. As the outer shell 30 is gradually pressed down, the pressing spring 42 and the compression spring 54 are compressed until the first oblique protrusion structure 431 and the second oblique protrusion structure 551 are misaligned and engaged, so the outer shell 30 can be fixed on the base plate 20. If it is necessary to open the outer shell 30 and replace its internal quartz crystal resonator, simply pull out the pull member 531, and then the connecting rod 53 moves outward, the compression spring 54 is compressed, and the lower fastening member 55 moves outward away from the upper fastening member 43, and then the outer shell 30 can be opened.

[0028] Through the above technical solution, the surface-mount quartz crystal resonator of this utility model has a sealed outer shell 30 during use, which can better protect the quartz crystal resonator inside the outer shell 30 and prevent moisture from entering and causing damage. In addition, the outer shell 30 of the quartz crystal resonator of this utility model is not welded. The outer shell 30 can be closed or opened by the cooperation of the first fastening member 40 and the second fastening member 50, which is simple to disassemble and facilitates the replacement of the quartz crystal resonator inside.

[0029] Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

Claims

1. A surface-mount quartz crystal resonator, characterized in that, The device includes a circuit board (10), a base plate (20), a quartz crystal resonator, and a housing (30). The base plate (20) is fixed to the upper surface of the circuit board (10). The quartz crystal resonator is located above the base plate (20). The housing (30) is fastened to the base plate (20) and the quartz crystal resonator is located inside the housing (30). The base plate (20) has a groove (21). The groove (21) is surrounded by strip grooves (22). The cross-section of the strip grooves (22) is trapezoidal. The bottom surface of the housing (30) is surrounded by a sealing strip (31). The cross-section of the sealing strip (31) is inverted trapezoidal. The sealing strip (31) and the strip grooves (22) are matched. The housing (30) has a first fastening member (40). The base plate (20) has a second fastening member (50) that cooperates with the first fastening member (40).

2. The patch-type quartz crystal resonator according to claim 1, characterized in that, The first fastening member (40) includes a first mounting groove (41), a pressing spring (42), and an upper fastener (43).

3. The patch-type quartz crystal resonator according to claim 2, characterized in that, The first mounting groove (41) is located at the bottom side of the outer shell (30). The pressing spring (42) is fixed in the first mounting groove (41). The outer end of the pressing spring (42) is connected to the rear end of the upper fastener (43). The front end of the upper fastener (43) is provided with a first oblique protrusion structure (431).

4. The patch-type quartz crystal resonator according to claim 1, characterized in that, The second fastening member (50) includes a second mounting groove (51), a through hole (52), a connecting rod (53), a compression spring (54), and a lower fastener (55).

5. The patch-type quartz crystal resonator according to claim 4, characterized in that, The second mounting groove (51) is located on the base plate (20) and on the outer periphery of the groove (21). The inner end of the through hole (52) communicates with the second mounting groove (51), and the outer end is located on the side of the base plate (20). The connecting rod (53) is located inside the through hole (52).

6. The patch-type quartz crystal resonator according to claim 5, characterized in that, The compression spring (54) is located in the second mounting groove (51) and sleeved on the outer periphery of the connecting rod (53). The lower fastener (55) is located in the second mounting groove (51), and the rear end of the lower fastener (55) is connected to one end of the compression spring (54). The front end of the lower fastener (55) is provided with a second oblique protrusion structure (551).

7. The patch-type quartz crystal resonator according to claim 5, characterized in that, The outer end of the connecting rod (53) is provided with a puller (531), which is used to pull the connecting rod (53).

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