Air tightness screening device for glass-sealed quartz resonators

Abstract

The utility model discloses an air tightness screening device for a glass-sealed quartz resonator. The air tightness screening device comprises a box body, a sealing cover is movably arranged at the upper part of the box; the bottom of the box body is of a protruding structure with the four edges sunken towards the middle. A water outlet is formed in the bottom of the box body corresponding to the convex structure; the upper part of the side wall of the box body is fixedly connected with a first hollow pipe and a second hollow pipe which are communicated, and the first hollow pipe is connected with an air compressor, so that after the outer surface of the resonator is cleaned, if the outer surface of the resonator is changed, the air tightness of the resonator is relatively poor, and if the outer surface of the resonator is not changed, the air tightness of the resonator is relatively good; by means of the screening mode, resistance testing can be avoided, rapid detection of the air tightness of the resonator is achieved, unqualified products are prevented from flowing into the market and affecting use, the detection cost and the detection time cost are remarkably reduced, operation is easy, the equipment cost is low, and the method is suitable for large-scale air tightness screening of the glass-sealed quartz resonator.

Description

Technical Field

[0001] This utility model belongs to the field of resonator testing technology, specifically, it relates to a glass-sealed quartz resonator airtightness screening device. Background Technology

[0002] A resonator is an electronic component that can generate a resonant frequency and is widely used in various electronic products. A resonator is usually composed of a piezoelectric quartz crystal and a package. The piezoelectric quartz crystal is rectangular or circular, and the package is made of materials such as glass, ceramic, or metal.

[0003] Patent CN111707420A discloses a quartz crystal resonator airtightness testing device, which mainly consists of a conveyor belt, a testing mechanism, and a sealing mechanism. When testing the airtightness of a quartz crystal resonator, the resonator is simply placed on the conveyor belt, which transports the resonator to the testing mechanism inside the main body for resistance testing. The sealing mechanism creates a sealed space inside the main body, and the resistance value is measured after pressurizing the sealed space, thus achieving the purpose of detecting the airtightness of the resonator.

[0004] Patent CN104535282A discloses a method and device for detecting the airtightness of a quartz crystal resonator. It achieves the purpose of detecting the resonator by changing the damping state of the resonator through a gas pressurization method and then using a resistance tester to detect the resistance value.

[0005] In the technical solutions of the aforementioned patents, the damping state of the resonator with poor airtightness is changed by gas pressurization. Then, the resistance value is detected by a resistance tester. The airtightness of the resonator is judged based on the resistance value, and the unqualified resonators can be screened out. However, when testing resonators in this way, the operation is cumbersome, requiring each resonator to be tested one by one. The testing cost and time cost are high, and the operation is relatively complicated, which has certain limitations. Utility Model Content

[0006] To address the technical problem in existing technologies where each resonator requires individual resistance testing, resulting in high testing and time costs and cumbersome operation, this invention provides a glass-sealed quartz resonator airtightness screening device.

[0007] The objective of this utility model can be achieved through the following technical solutions:

[0008] A glass-sealed quartz resonator airtightness screening device includes a housing; a sealing cover is movably installed on the upper part of the housing;

[0009] The bottom of the box has a raised structure that is concave from the four sides to the center; a drain outlet is provided at the bottom of the box corresponding to the position of the raised structure;

[0010] The upper part of the side wall of the box is fixedly connected to a first hollow tube and a second hollow tube. The first hollow tube is connected to an air compressor, and the second hollow tube is connected to a water tank containing pigment.

[0011] The enclosure is equipped with a shelf; the shelf has evenly spaced circular holes, which are smaller than the diameter of the resonator.

[0012] Furthermore, the sealing cover has an internal interlayer; a drain pipe is fixedly connected to the lower surface of the sealing cover at a position corresponding to the interlayer, and the drain pipe communicates with the interlayer; one or more water injection pipes communicating with the interlayer are fixedly connected to the side of the sealing cover.

[0013] Furthermore, each drain pipe is detachably equipped with a connector; a splash plate is provided at the lower part of the connector, the splash plate is in the shape of a frustum, and its edge is provided with a circular array of notches.

[0014] Furthermore, a rubber ring is provided at the periphery of the upper surface of the box.

[0015] Furthermore, the four corners of the box are provided with protrusions; through support rods are fixed to the positions of the four corner protrusions of the box by nuts.

[0016] Furthermore, connecting blocks are fixed to the four corners of the upper surface of the sealing cover; the sealing cover is slidably positioned above the box body through the cooperation of the connecting blocks and the support rod.

[0017] Furthermore, a fixed base is fixedly connected to the upper end of the support rod; a telescopic cylinder is fixedly installed at the center of the upper part of the fixed base; the lower end of the telescopic cylinder extends through to the lower surface of the fixed base, and the end is connected to the sealing cover.

[0018] Furthermore, an electromagnetic reversing valve is installed on the housing corresponding to the drain outlet. Furthermore, the connecting block has an L-shaped structure.

[0019] Furthermore, both the first hollow tube and the second hollow tube are equipped with a one-way valve, the flow direction of which is to deliver air or pigment water from the outside of the tank to the inside of the tank.

[0020] The beneficial effects of this utility model are:

[0021] 1) In this utility model, because the resonator with poor airtightness is exposed to water containing pigment under pressure, and because the glass-encapsulated resonator is transparent, if the surface of the resonator changes after cleaning, it indicates that the resonator has poor airtightness, and if it does not change, it indicates that the resonator has good airtightness. This screening method can avoid resistance testing and achieve rapid airtightness testing of the resonator, preventing unqualified products from entering the market and affecting their use. The testing cost and time cost are significantly reduced. The operation is simple and the equipment cost is low, making it suitable for large-scale airtightness screening of glass-encapsulated quartz resonators. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0025] Figure 3 This is a cross-sectional view of the present invention;

[0026] Figure 4 yes Figure 3 A magnified view of a portion of point A in the middle;

[0027] Figure 5 This is a schematic diagram of the splash plate in this utility model;

[0028] Figure 6 This is a schematic diagram of the sealing cap structure in this utility model;

[0029] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0030] 1. Box body; 2. Support rod; 3. Sealing cover; 4. Fixing base; 5. Telescopic cylinder; 6. Drain outlet; 7. Solenoid directional valve; 8. Shelf; 9. First hollow tube; 10. Second hollow tube; 11. Interlayer; 12. Drain pipe; 13. Connector; 14. Splash plate; 15. Water inlet pipe; 16. Rubber ring; 17. Connecting block; 18. Check valve. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see Figure 1 - Figure 3 As shown, a glass-sealed quartz resonator airtightness screening device includes a box body 1, which has protrusions at its four corners; a through support rod 2 is fixed to the protrusions at the four corners of the box body 1 by nuts, and the support rod 2 is used to support the box body 1; the bottom of the box body 1 has a protruding structure that is concave from the four sides to the center; and a sealing cover 3 is movably installed on the upper part of the box body 1.

[0033] Please refer to it again. Figure 2 , Figure 3 as well as Figure 6 As shown, a drain outlet 6 is provided at the bottom of the box 1 corresponding to the position of the protruding structure; an electromagnetic reversing valve 7 is provided at the position of the drain outlet 6 on the box 1; a first hollow pipe 9 and a second hollow pipe 10 are fixedly connected to the upper part of the side wall of the box 1, the first hollow pipe 9 is connected to an air compressor, and the second hollow pipe 10 is connected to a water tank containing pigment; a one-way valve 18 is provided on both the first hollow pipe 9 and the second hollow pipe 10, the flow direction of the one-way valve 18 is to deliver air or pigment water from the outside of the box 1 to the inside of the box 1, and the one-way valve 18 is used to maintain the airtightness of the inside of the box 1 after it is closed.

[0034] The housing 1 is equipped with a shelf 8, on which evenly distributed circular holes are provided. The circular holes are smaller than the diameter of the resonator.

[0035] The sealing cover 3 has an inner layer 11; a drain pipe 12 is fixedly connected to the lower surface of the sealing cover 3 at a position corresponding to the inner layer 11, and the drain pipe 12 is connected to the inner layer 11; one or more water injection pipes 15 connected to the inner layer 11 are fixedly connected to the side of the sealing cover 3.

[0036] Please refer to it again. Figure 4 and Figure 5 As shown, each drain pipe 12 is detachably equipped with a connector 13; a splash plate 14 is provided at the lower part of the connector 13. The splash plate 14 has a frustum-shaped structure and a circular array of notches on its edge to prevent the formation of a water film.

[0037] A rubber ring 16 is provided at the periphery of the upper surface of the box 1 to increase the airtightness between the box 1 and the sealing cover 3.

[0038] Please refer to it again. Figure 2As shown, connecting blocks 17 are fixed to the four corners of the upper surface of the sealing cover 3. The connecting blocks 17 are L-shaped and are used to avoid the nuts restricting the connection between the sealing cover 3 and the box body 1. The sealing cover 3 is slidably mounted above the box body 1 through the cooperation of the connecting blocks 17 and the support rod 2. The upper end of the support rod 2 is fixedly connected to the fixing seat 4. The center of the upper part of the fixing seat 4 is fixedly provided with a telescopic cylinder 5. The telescopic cylinder 5 is a two-stage telescopic cylinder 5, which can save space. The lower end of the telescopic cylinder 5 extends through to the lower surface of the fixing seat 4 and the end is connected to the sealing cover 3.

[0039] To facilitate understanding of the above-mentioned technical solution of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below:

[0040] First, connect the first hollow tube 9 to the air compressor via an air pipe, connect the second hollow tube 10 to the water tank containing pigment, and use a water pump to pump the pigmented water into the housing 1. Then, connect one outlet of the electromagnetic reversing valve 7 to the water tank containing pigment, and the other outlet can be discharged directly through a pipe. After that, the detection and screening of the resonator is completed through the following operation steps.

[0041] S1: By using the telescopic cylinder 5 to move the sealing cover 3 upward, the box 1 is in the open state.

[0042] S2: Place another batch of resonators on the shelf 8 inside the housing 1, and use the telescopic cylinder 5 to move the sealing cover 3 down again to seal the housing 1.

[0043] S3: The water containing pigment in the pool is pumped into the housing 1 by a water pump, so that the resonator is immersed in the pigmented water. The pressure inside the housing 1 is increased by an air compressor, so that the pigmented water enters the resonator that does not meet the airtightness requirements.

[0044] S4: The pigmented water in the tank 1 is discharged back into the pool through the electromagnetic reversing valve 7. After the water is completely discharged, the flow direction of the electromagnetic reversing valve 7 is changed.

[0045] S5: Clean water is continuously introduced into the interlayer 11 inside the sealing cover 3 through the water injection pipe 15, and the clean water is continuously discharged into the box 1 through the drain pipe 12. In conjunction with the splash plate 14, the clean water is sprayed onto the resonator after it has been soaked in colored water, and the pigment water attached to the surface of the resonator is washed clean.

[0046] S6: Use the telescopic cylinder 5 again to move the sealing cover 3 upward, and remove the rinsed resonator from the shelf.

[0047] In this screening method, resonators with poor airtightness can be exposed to water containing pigments under pressure. Since glass-encapsulated resonators are transparent, their color can be directly observed after cleaning. A change in color indicates poor airtightness, while no change indicates good airtightness. This method avoids resistance testing, enabling rapid airtightness testing of resonators and preventing substandard products from entering the market and affecting their use. It significantly reduces testing costs and time, is simple to operate, and has low equipment costs, making it suitable for large-scale airtightness screening of glass-encapsulated quartz resonators.

[0048] In the description of this specification, the references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0049] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described, or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, all of which should fall within the protection scope of this utility model.

Claims

1. A glass-sealed quartz resonator airtightness screening device, characterized in that: Includes a housing (1); a sealing cover (3) is movably installed on the upper part of the housing (1); The bottom of the box (1) is a raised structure with four sides concave towards the center; a drain outlet (6) is provided at the bottom of the box (1) corresponding to the raised structure; The upper part of the side wall of the box (1) is fixedly connected to a first hollow tube (9) and a second hollow tube (10). The first hollow tube (9) is connected to an air compressor, and the second hollow tube (10) is connected to a water tank containing pigment. The housing (1) is provided with a shelf (8); the shelf (8) is provided with evenly distributed circular holes, the circular holes being smaller than the diameter of the resonator.

2. The airtightness screening device for glass-sealed quartz resonators according to claim 1, characterized in that: The sealing cover (3) has an inner layer (11); a drain pipe (12) is fixedly connected to the lower surface of the sealing cover (3) at a position corresponding to the inner layer (11), and the drain pipe (12) is connected to the inner layer (11); one or more water injection pipes (15) connected to the inner layer (11) are fixedly connected to the side of the sealing cover (3).

3. The airtightness screening device for glass-sealed quartz resonators according to claim 2, characterized in that: Each drain pipe (12) is detachably equipped with a connector (13); a splash plate (14) is provided at the lower part of the connector (13), the splash plate (14) is in the shape of a frustum, and its edge is provided with a circular array of notches.

4. The airtightness screening device for a glass-sealed quartz resonator according to claim 1, characterized in that: A rubber ring (16) is provided at the periphery of the upper surface of the box (1).

5. The airtightness screening device for a glass-sealed quartz resonator according to claim 1, characterized in that: The four corners of the box (1) are provided with protrusions; the positions of the four corner protrusions of the box (1) are fixed with nuts and a through support rod (2).

6. The airtightness screening device for a glass-sealed quartz resonator according to claim 5, characterized in that: The sealing cover (3) has connecting blocks (17) fixed at the four corners of its upper surface; the sealing cover (3) is slidably mounted above the box body (1) through the cooperation of the connecting blocks (17) and the support rod (2).

7. The airtightness screening device for a glass-sealed quartz resonator according to claim 5, characterized in that: The upper end of the support rod (2) is fixedly connected to a fixed seat (4); a telescopic cylinder (5) is fixedly installed at the center of the upper part of the fixed seat (4); the lower end of the telescopic cylinder (5) extends through to the lower surface of the fixed seat (4), and the end is connected to the sealing cover (3).

8. The airtightness screening device for glass-sealed quartz resonators according to claim 1, characterized in that: The housing (1) is equipped with an electromagnetic reversing valve (7) at the position corresponding to the drain outlet (6).

9. The airtightness screening device for glass-sealed quartz resonators according to claim 1, characterized in that: The connecting block (17) has an L-shaped structure.

10. The airtightness screening device for a glass-sealed quartz resonator according to claim 1, characterized in that: Both the first hollow tube (9) and the second hollow tube (10) are equipped with a one-way valve (18), and the flow direction of the one-way valve (18) is to deliver air or pigment water from the outside of the box (1) to the inside of the box (1).

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