A moisture-proof and dust-proof quartz crystal oscillator encapsulation shell

Abstract

This utility model provides a moisture-proof and dust-proof quartz crystal oscillator packaging shell, relating to the field of quartz crystal oscillator packaging technology. It includes a shell, a display screen on the top of the shell, a base at the bottom of the shell, a pedestal on the top of the base, an intermediate moisture-proof layer inside the pedestal, a front water-absorbing surface on the top of the intermediate moisture-proof layer, a dehumidification module and an oscillator body on the top of the front water-absorbing surface, and an inner shell on the top of the dehumidification module and the oscillator body. A removable metal filter is located on the top of the inner shell. By using the intermediate moisture-proof layer and the dehumidification module, the surface temperature of the cold end of the dehumidification module drops rapidly after power-on, causing the moisture in the inner cavity to condense preferentially on the water-absorbing surface and be quickly drawn in by the annular water-absorbing channel. This quickly captures the initially accumulated water vapor in the inner cavity. The dehumidification module continuously and actively dehumidifies, ensuring a low-humidity environment, efficiently collecting condensate or absorbed water, and discharging it quantitatively through a drain outlet and a water level valve to prevent backflow of accumulated water.

Description

Technical Field

[0001] This utility model relates to the field of quartz crystal oscillator packaging technology, and in particular to a moisture-proof and dust-proof quartz crystal oscillator packaging shell. Background Technology

[0002] According to Chinese Patent Publication No. CN217824911U, an ultra-high precision quartz crystal oscillator housing, particularly the encapsulation of a quartz crystal oscillator housing base and a top cover, includes a ceramic housing base and a housing top cover. The housing base is a cavity with an opening, and the cavity has a cavity end edge on the same plane. The housing top cover has a top cover edge, and the top cover edge is tightly encapsulated to the cavity end edge, making the housing base a cavity with a closed inner cavity. A crystal substrate is provided in the cavity of the housing base, and a quartz crystal wafer is fixed on the crystal substrate. The cavity end edge of the housing base has a top surface, and the top cover edge of the housing top cover is coated with UV adhesive and bonded to the top surface of the cavity end edge of the housing base.

[0003] The aforementioned comparative documents and existing technologies have the following technical problems: existing quartz crystal oscillators are mostly packaged in metal or plastic shells, and the devices they are suitable for are prone to internal condensation when used for a long time in humid environments, such as outdoor and marine environments, which can cause the oscillation frequency to drift or even fail; in dusty or corrosive environments, dust or harmful particles can easily enter the package, causing device performance degradation or short circuits. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a moisture-proof and dust-proof quartz crystal oscillator encapsulation shell.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a moisture-proof and dust-proof quartz crystal oscillator encapsulation shell, comprising a shell, a display screen on the top of the shell, a base on the bottom of the shell, a pedestal on the top of the base, an intermediate moisture-proof layer inside the pedestal, and a front water-absorbing surface on the top of the intermediate moisture-proof layer.

[0006] Preferably, the top of the front water-absorbing surface is provided with a dehumidification module and an oscillator body, the top of the dehumidification module and the oscillator body is provided with an inner shell, and the top of the inner shell is provided with a removable metal filter screen.

[0007] Preferably, the base has a water collection tank inside, a guide plate at the bottom of the water collection tank, and a drain outlet on one side of the water collection tank.

[0008] Preferably, the flow direction of the guide plate is consistent with that of the drain outlet, the end face of the drain outlet is provided with a water level valve, the inside of the water collection tank is provided with a water level sensor, and the water level sensor and the water level valve are electrically connected as well as the water level sensor and the display screen.

[0009] Preferably, the bottom center of the intermediate moisture-proof layer is provided with a water collection port, the outer side of the water collection port is provided with an annular water absorption channel, and the four corners of the bottom of the intermediate moisture-proof layer are provided with spring self-locking buckle grooves, and the inside of the spring self-locking buckle grooves is provided with spring self-locking buckles.

[0010] Preferably, the top of the annular water absorption channel is connected to the front water absorption surface, the annular water absorption channel is connected to the bottom of the dehumidification module, the dehumidification module extends through the front water absorption surface to the annular water absorption channel, a humidity sensor is provided on one side of the dehumidification module, and the humidity sensor is electrically connected to the display screen and to the dehumidification module.

[0011] Preferably, the base has a water inlet at the bottom center, the top of the water inlet is connected to the water collection port, the bottom four corners of the inner shell have connecting blocks, the bottom end of the connecting blocks has a slot, and the slot cooperates with the spring self-locking buckle.

[0012] Beneficial effects

[0013] This invention employs an intermediate moisture-proof layer and a dehumidification module. The front water-absorbing surface is tightly fitted with an annular water-absorbing channel. The water-absorbing surface uses microporous hydrophilic ceramic bonded to a stainless steel base, which has high thermal conductivity and excellent hydrophilic properties. The dehumidification module is installed on the side wall, with its cold end close to the front side of the bottom wall. After being powered on, the surface temperature of the cold end drops rapidly, forming a low-temperature front water-absorbing surface. This allows the moisture in the cavity to condense preferentially on this water-absorbing surface and be quickly drawn into the annular water-absorbing channel, which can quickly capture the water vapor that initially accumulates in the cavity. The dehumidification module extends from the front water-absorbing surface to the water-absorbing channel, continuously and actively dehumidifying to ensure a low-humidity environment. The design of the water collection tank and guide plate efficiently collects condensate or water absorbed and discharges it quantitatively through the drain outlet and water level valve to avoid water accumulation and backflow. In addition, the display screen on the top of the housing can provide real-time feedback on the humidity, water level status, and filter clogging alarm.

[0014] This utility model employs a detachable metal filter and a spring-loaded self-locking buckle groove. The detachable metal filter is located at the top of the inner shell, effectively blocking dust and particulate matter. The spring-loaded self-locking buckle grooves at the four corners of the bottom of the middle moisture-proof layer precisely match the grooves on the inner shell connecting block, forming a quick installation and easy disassembly. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2This is a front perspective view of the present utility model;

[0017] Figure 3 This is a perspective view of the back of the present invention;

[0018] Figure 4 This is a side sectional view of the present invention;

[0019] Figure 5 This is a front sectional view of the present invention.

[0020] Legend:

[0021] 1. Housing; 2. Display screen; 3. Base; 301. Water collection tank; 302. Guide plate; 303. Drain outlet; 4. Base; 401. Water inlet; 5. Intermediate moisture-proof layer; 501. Water collection outlet; 502. Annular water intake channel; 503. Spring self-locking buckle groove; 6. Front water intake surface; 7. Dehumidification module; 8. Oscillator body; 9. Inner shell; 901. Connecting block; 10. Removable metal filter screen; 11. Water level valve. Detailed Implementation

[0022] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments and accompanying drawings. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described in the implementation plan without creative effort are all within the protection scope of this utility model.

[0023] The specific embodiments of this utility model are described below with reference to the accompanying drawings. Specific Implementation Example 1:

[0025] Reference Figure 1-5This utility model provides a moisture-proof and dust-proof quartz crystal oscillator enclosure, including a housing 1, a display screen 2 on the top of the housing 1, a base 3 at the bottom of the housing 1, a base 4 on the top of the base 3, an intermediate moisture-proof layer 5 inside the base 4, a front water-absorbing surface 6 on the top of the intermediate moisture-proof layer 5, a dehumidification module 7 and an oscillator body 8 on the top of the front water-absorbing surface 6, an inner shell 9 on the top of the dehumidification module 7 and the oscillator body 8, a removable metal filter screen 10 on the top of the inner shell 9, a water collection tank 301 inside the base 3, a guide plate 302 at the bottom of the water collection tank 301, and a drain outlet 303 on one side of the water collection tank 301. The flow direction of the flow plate 302 is consistent with that of the drain outlet 303. A water level valve 11 is provided on the end face of the drain outlet 303. A water level sensor is provided inside the water collection tank 301. The water level sensor is electrically connected to the water level valve 11 and to the display screen 2. A water collection port 501 is provided at the center of the bottom of the intermediate moisture-proof layer 5. An annular water absorption channel 502 is provided on the outside of the water collection port 501. Spring self-locking buckle grooves 503 are provided at the four corners of the bottom of the intermediate moisture-proof layer 5. Spring self-locking buckles are provided inside the spring self-locking buckles 503. The top of the annular water absorption channel 502 is connected to the front water absorption surface 6. The annular water absorption channel 502 is connected to the bottom of the dehumidification module 7. The dehumidification module 7 extends from the front water-absorbing surface 6 to the annular water-absorbing channel 502. A humidity sensor is located on one side of the dehumidification module 7, and the humidity sensor is electrically connected to the display screen 2 and to the dehumidification module 7. A water inlet 401 is located at the center of the bottom of the base 4, and the top of the water inlet 401 communicates with the water collection inlet 501. Connecting blocks 901 are located at the four corners of the bottom of the inner shell 9, and the bottom end of the connecting blocks 901 has a slot that engages with a spring-loaded self-locking buckle. The system utilizes an intermediate moisture-proof layer 5 and the dehumidification module 7. The front water-absorbing surface 6 fits tightly with the annular water-absorbing channel 502. This water-absorbing surface uses microporous hydrophilic ceramic bonded to a stainless steel base, exhibiting high thermal conductivity and excellent performance. With its unique hydrophilic properties, the dehumidification module 7 is installed on the side wall, with its cold end close to the front side of the bottom wall. After being powered on, the surface temperature of the cold end drops rapidly, causing the moisture in the inner cavity to condense preferentially on the water absorption surface and be quickly drawn in by the annular water absorption channel 502. This can quickly capture the water vapor that initially accumulates in the inner cavity. The dehumidification module 7 runs through the front water absorption surface 6 to the water absorption channel, continuously and actively dehumidifying to ensure a low-humidity environment. The design of the water collection tank 301 and the guide plate 302 efficiently collects the condensate or water absorbed and discharges it quantitatively through the drain outlet 303 and the water level valve 11 to avoid water accumulation and backflow. In addition, the display screen 2 on the top of the housing 1 can provide real-time feedback on the humidity, water level status and filter clogging alarm of the inner cavity. Specific Implementation Example 2:

[0027] Reference Figure 1A multi-stage composite electrostatic fiber filtration structure is set between the intermediate layer and the inner shell 9, including: the first layer is a meltblown electrospun polypropylene nonwoven filter element, which has a primary filtration function; the second layer is a hydrophobic microporous membrane, which can block fine dust and corrosive liquid splashes; the third layer is a flexible ceramic electrode layer, which electrostatically precharges the airflow after being energized, improving filtration efficiency and preventing filter element polarization. Each layer is fixed by a replaceable filter element assembly snap-fit ​​method, and a detachable filter element interface is set on the side wall of the intermediate layer for easy maintenance and replacement. This structure can efficiently intercept dust and corrosive gases while ensuring low airflow resistance. Key parts of the shell 1 are covered with nano-hydrophobic and oleophobic coatings to further improve moisture resistance.

[0028] In summary:

[0029] By employing an intermediate moisture-proof layer 5 and a dehumidification module 7, the surface temperature of the cold end of the dehumidification module 7 drops rapidly after being powered on, causing the moisture in the inner cavity to condense preferentially on the water absorption surface and be quickly drawn in by the annular water absorption channel 502. This can quickly capture the water vapor that initially accumulates in the inner cavity. The dehumidification module 7 continuously and actively dehumidifies to ensure a low-humidity environment. The design of the water collection tank 301 and the guide plate 302 efficiently collects the condensed water or water absorbed after water absorption and discharges it quantitatively through the drain outlet 303 and the water level valve 11 to avoid water accumulation and back seepage.

[0030] The removable metal filter 10 and spring self-locking buckle groove 503 are used to set the removable metal filter 10 on the top of the inner shell 9, effectively blocking dust and particulate dirt. The spring self-locking buckle groove 503 at the four corners of the bottom of the middle moisture-proof layer 5 is precisely matched with the groove on the connecting block 901 of the inner shell 9, forming a quick installation and easy disassembly.

[0031] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A moisture-proof and dust-proof quartz crystal oscillator enclosure, comprising a housing (1), characterized in that: The top of the housing (1) is provided with a display screen (2), the bottom of the housing (1) is provided with a base (3), the top of the base (3) is provided with a pedestal (4), the interior of the pedestal (4) is provided with an intermediate moisture-proof layer (5), the top of the intermediate moisture-proof layer (5) is provided with a front water-absorbing surface (6), the top of the front water-absorbing surface (6) is provided with a dehumidification module (7) and an oscillator body (8), the top of the dehumidification module (7) and the oscillator body (8) is provided with an inner shell (9), the interior of the base (3) is provided with a water collection tank (301), the water collection tank... The bottom of the tank (301) is provided with a guide plate (302), and a drain outlet (303) is provided on one side of the water collection tank (301). The bottom center of the intermediate moisture-proof layer (5) is provided with a water collection port (501). An annular water absorption channel (502) is provided on the outside of the water collection port (501). The top of the annular water absorption channel (502) is connected to the front water absorption surface (6). The annular water absorption channel (502) is connected to the bottom of the dehumidification module (7). The dehumidification module (7) passes through the front water absorption surface (6) to the annular water absorption channel (502).

2. The moisture-proof and dust-proof quartz crystal oscillator packaging shell according to claim 1, characterized in that: The top of the inner shell (9) is provided with a removable metal filter (10).

3. The moisture-proof and dust-proof quartz crystal oscillator packaging shell according to claim 1, characterized in that: The flow direction of the guide plate (302) is consistent with that of the drain outlet (303), and the end face of the drain outlet (303) is provided with a water level valve (11).

4. The moisture-proof and dust-proof quartz crystal oscillator packaging shell according to claim 3, characterized in that: The water collection tank (301) is equipped with a water level sensor inside, and the water level sensor is electrically connected to the water level valve (11) and to the display screen (2).

5. The moisture-proof and dust-proof quartz crystal oscillator packaging shell according to claim 1, characterized in that: The bottom four corners of the intermediate moisture-proof layer (5) are provided with spring self-locking buckle grooves (503), and the inside of the spring self-locking buckle grooves (503) is provided with spring self-locking buckles.

6. The moisture-proof and dust-proof quartz crystal oscillator packaging shell according to claim 5, characterized in that: A humidity sensor is provided on one side of the dehumidification module (7), and the humidity sensor is electrically connected to the display screen (2) and to the dehumidification module (7).

7. The moisture-proof and dust-proof quartz crystal oscillator packaging shell according to claim 1, characterized in that: The base (4) has a water inlet (401) at the bottom center. The top of the water inlet (401) is connected to the water collection port (501). The inner shell (9) has connecting blocks (901) at the bottom four corners. The bottom end of the connecting block (901) has a slot. The slot cooperates with the spring self-locking buckle.

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