A sealing product with a sink groove

Abstract

The embodiment of the present application discloses a sealing product with a sink groove, which is used to slow down the problem that part of the tin melted at high temperature flows into the cavity of the sealing product during heating, which may affect the performance of the sealing product. The sealing product with a sink groove of the present application includes: a first part and a second part, the first part and / or the second part has a cavity, the first part is provided with a sink groove in the contact part with the second part; and / or the second part is provided with a sink groove in the contact part with the first part, and at least part of the contact part is provided with a connecting material.

Description

Technical Field

[0001] The present application relates to the technical field of communication products, and in particular to a sealing product with a sink groove. Background Art

[0002] For sealing products composed of two or more parts, fasteners are usually used to fix the two or more parts to form a sealing product that meets certain sealing requirements. Due to the hardness of the part material, the fixing range of fasteners is limited. For sealing products with larger volumes and more components, in order to achieve certain sealing standards, more fasteners are often required to fix the various components of the sealing product, and more fasteners will increase the weight of the sealing product.

[0003] In the prior art, in order to reduce the weight of the sealing product, tin is used to weld and fix the components of the sealing product. Generally, the process of welding and fixing the components of the sealing product with tin is: brush the gelatinous tin to be welded on the contact surface between the components, and then combine the components of the sealing product together for heating. The gelatinous tin melts after high temperature, and then cools and solidifies to weld the components in contact with the tin together. The above process has the following defects: the flow of the high-temperature melted tin is uncontrollable, and part of the high-temperature melted tin may flow into the cavity of the sealing product during heating, which may affect the performance of the sealing product. Summary of the invention

[0004] The embodiment of the present application provides a sealing product with a sink groove, which is used to slow down the problem that part of the high-temperature melted tin flows into the cavity of the sealing product during heating, thereby possibly affecting the performance of the sealing product.

[0005] The present application embodiment provides a sealing product with a sink groove, including:

[0006] A first part and a second part, wherein the first part and / or the second part has a cavity;

[0007] The first part has a recessed groove at the contact portion with the second part; and / or,

[0008] The second part has a recessed groove at a contact portion with the first part;

[0009] At least part of the contact portion is provided with a connecting material.

[0010] Optionally, the connecting material is at least one of solder, thermal conductive adhesive, and structural adhesive.

[0011] Optionally, the sealing product is a filter, the first part is a filter body of the filter, and the second part is a filter cover plate of the filter.

[0012] Optionally, the contact portion between the filter body and the filter cover plate comprises a contact surface, and the contact surface is coated with the connecting material;

[0013] The sinking groove is arranged on the filter body, specifically, is arranged inside the filter body with the contact surface as the bottom surface; and / or,

[0014] The sinking groove is arranged on the filter cover plate, and is specifically opened toward the inside of the filter cover plate with the contact surface as the bottom surface.

[0015] Optionally, the filter body has a cavity, and the sink is provided on a path for the connection material to flow into the cavity; and / or,

[0016] The filter cover plate has a cavity, and the sink is arranged on a path for the connection material to flow into the cavity.

[0017] Optionally, the filter body has a cavity, and the sink groove comprises a sink groove opened along the inner wall of the cavity; and / or,

[0018] The filter cover plate has a cavity, and the sink groove comprises a sink groove opened along the inner wall of the cavity.

[0019] Optionally, the volume of the sink is positively correlated with the contact surface size of the filter body; and / or,

[0020] The volume of the sink is positively correlated with the contact surface of the filter cover.

[0021] Optionally, the cross section of the sink is arc-shaped or polygonal.

[0022] Optionally, the sealing product further includes: a positioning component for positioning the first part and the second part.

[0023] Optionally, the positioning component is a positioning screw.

[0024] Optionally, the number of the screws is at least three, and the position of at least one screw is not on the same line as the positions of the other two or more screws.

[0025] It can be seen from the above technical solutions that the embodiments of the present application have the following advantages:

[0026] In the present application, a trough is provided on a component part of the sealing product to accommodate the high-temperature molten tin flowing into the cavity of the sealing product, thereby alleviating the problem of partial high-temperature molten tin flowing into the cavity of the sealing product during heating, which may affect the performance of the sealing product. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic cross-sectional view of a local structure of a filter body without a sink groove in an embodiment of the present application;

[0028] Figure 2 A schematic cross-sectional view of a local structure of a filter without a sink groove in an embodiment of the present application;

[0029] Figure 3 A schematic cross-sectional view of a local structure of a filter body with a sink groove in an embodiment of the present application;

[0030] Figure 4 A schematic cross-sectional view of a local structure of a filter with a sink groove in an embodiment of the present application;

[0031] Figure 5 It is a schematic diagram of the cross section of the sink in the embodiment of the present application. DETAILED DESCRIPTION

[0032] The embodiment of the present application provides a sealing product with a sink groove, which is used to slow down the problem that part of the high-temperature melted tin flows into the cavity of the sealing product during heating, thereby possibly affecting the performance of the sealing product.

[0033] It is understandable that in the embodiments of the present application, only the filter is used as an example of a sealing product for explanation. According to the principle of the present application, it can also be applied to other sealing products with sealing requirements, such as valves that need to be sealed with connecting materials, boxes that need to be sealed with connecting materials, etc., which are not specifically limited here. It should be noted that the sink in the embodiment of the present application can not only be used to accommodate tin that is about to flow into the cavity of the sealing product when heated, but also other connecting materials used to connect the first part or the second part, such as solder, thermal conductive adhesive, structural adhesive, glue, etc., which are not specifically limited here. It should be further explained that the first part or the second part in the present application should be understood as two parts that constitute the sealing product, and it does not specifically mean that the sealing product only includes two parts. The sealing product can be composed of several parts. The present application only describes the sealing product composed of the first part and the second part.

[0034] The following description takes the filter as a sealed product, the filter body as the first part, the filter cover as the second part, and the connecting material as solder. It can be understood that this embodiment is only for the purpose of illustrating the present application, and only some embodiments are listed, which should not be understood as a limitation on the present application.

[0035] See also Figure 1 and Figure 2 , Figure 1 The figure shows a partial structural cross-sectional diagram of a filter body without a sink groove in an embodiment of the present application. Figure 2 The diagram shows a partial structural cutaway diagram of a filter without a sink groove in an embodiment of the present application. As shown in the figure, the sealed product in this embodiment is a filter, the first part of the sealed product is a filter body 100 of the filter, the cavity opened by the first part is a cavity 102 of the filter, and the second part of the sealed product is a filter cover plate 200 of the filter. The sealing process of the filter body 100 and the filter cover plate 200 is: brush the colloidal tin to be welded on the contact surface 101 of the filter body 100 and the filter cover plate 200, and then combine the filter cover plate 200 and the filter body 100 together for heating in a high-temperature furnace. The colloidal tin melts after high temperature, and then after cooling and solidification, the filter body 100 and the filter cover plate 200 in contact with the tin are welded together. The high-temperature melted tin flow on the contact surface 101 is uncontrollable, which may cause part of the high-temperature melted tin to flow into the cavity 102 of the filter during heating. The high-temperature melted tin contacts the circuit inside the filter, which may cause the filter to short-circuit, and the high-temperature melted tin cools and agglomerates inside the filter to cause abnormal noise and intermodulation anomalies, which may affect the filtering performance of the filter. Under normal circumstances, if there is part of the high-temperature melted tin flowing into the cavity 102 of the filter, it needs to be repaired, that is, the filter is reheated and disassembled, the filter is cleaned, and the tin is brushed again and welded again, and the repair cost is high.

[0036] See also Figure 3 and Figure 4 , Figure 3 The figure shows a partial structural cross-sectional diagram of a filter body with a sink groove in an embodiment of the present application. Figure 4 The present invention shows a partial structure of a filter with a sink groove in an embodiment of the present invention. In order to reduce the high-temperature melted tin on the contact surface from flowing into the cavity 102 of the filter body 100, which may affect the performance of the filter, a sink groove is provided at the contact portion between the filter body 100 and the filter cover plate 200; and / or, a sink groove is provided at the contact portion between the filter cover plate 200 and the filter body 100, and the sink groove is used to store tin, which means to store part of the high-temperature melted tin that is about to flow into the cavity 102 of the sealed product when heated. That is to say, a sink groove is provided at the contact portion between the first part of the sealed product and the second part; and / or, a sink groove is provided at the contact portion between the second part of the sealed product and the first part, and the first part and the second part are connected by a connecting material, or the first part and the second part are heat-insulated, magnetically isolated, and insulated by a connecting material; the sink groove is used to store the overflowing part of these connecting materials, so that the sealed product is free from interference by the overflowing connecting materials.

[0037] The following is an example of a filter body as the first part of a sealed product with a sink groove. It can be understood that the filter cover can be similarly provided with a sink groove as the second part of a sealed product. For ease of understanding, the contact portion of this application refers to: when the first part and the second part are combined into a sealed product without using a connecting material, the part where the first part and the second part are in contact is located; based on this understanding, the first part and the second part each have their own contact surface, called the contact surface; the first part and the second part each have their own contact part, called the contact portion; the contact surface is a part of the contact portion.

[0038] Taking the filter as an example, the connection material provided at the contact part between the filter body 100 and the filter cover plate 200 generally plays a connecting and sealing role. The sink groove is generally provided on the part of the filter in the lower part of the filter placement posture when the filter is heated in the heating furnace, so that the sink groove can smoothly accommodate the tin that flows under the action of gravity after melting at high temperature. For example, the filter body 100 is in the lower part of the filter placement posture when heated, so it is preferred to provide the sink groove 104 on the filter body 100; according to actual conditions, the sink groove can also be provided on the filter cover plate 200, but when heated in the heating furnace, it is preferred to place the filter cover plate 200 in the lower part of the filter placement posture, so that the sink groove of the filter cover plate can smoothly accommodate the tin that flows under the action of gravity after melting at high temperature.

[0039] For another example, a sink 104 can be provided on the contact portion of the filter body 100, that is, a certain volume of the filter body is removed downward from the contact surface 101, thereby forming a sink 104 that can be used to accommodate the tin melted at high temperature on the contact surface 101 during heating. Based on this understanding, that is to say, the sink 104 is provided on the filter body 100, specifically, it is provided to the inside of the filter body 100 with the contact surface 101 of the filter body 100 as the bottom surface; and / or, the sink can also be provided on the filter cover plate 200, specifically, it is provided to the inside of the filter cover plate 200 with the contact surface of the filter cover plate 200 as the bottom surface. In general, in addition to being used to accommodate the tin melted at high temperature and to alleviate the problem of part of the tin melted at high temperature flowing into the cavity 102 of the sealed product during heating, the sink 104 provided on the contact surface 101 of the filter can also reduce the weight of the filter, reduce the area of ​​the contact surface 101 and reduce the amount of tin used.

[0040] Further preferably, the sink grooves 104 can also be opened on the contact surface 101 around the cavity 102 of the filter body 101, because the main function of the sink grooves 104 is to accommodate part of the high-temperature melted tin that flows into the cavity 102 during heating. The closer these sink grooves 104 are to the periphery of the cavity 102, the greater the probability of accommodating part of the high-temperature melted tin that flows into the cavity 102 during heating. Of course, it can be understood that when the volume of the sink grooves 104 is constant, the more sink grooves 104 are close to the cavity 102, the greater the probability of accommodating part of the high-temperature melted tin that flows into the cavity 102 during heating. It can be understood that the filter body 100 has a cavity 102, and the sink grooves 104 are opened on the path where the connecting material flows into the cavity 102; and / or, the filter cover plate has a cavity, and the sink grooves are opened on the path where the connecting material flows into the cavity.

[0041] Further preferably, the sinking groove 104 of the filter can be opened along the cavity wall of the cavity 102, such as a stepped sinking groove. Figure 3 Figure 4 As shown. Such a sink 104 has a greater probability of preventing the high-temperature melted tin from flowing into the cavity 102 of the filter, which is the most direct and effective. It can be understood that the filter body 100 has a cavity 102, and the sink 104 includes a sink opened along the inner wall of the cavity; and / or the filter cover has a cavity, and the sink includes a sink opened along the inner wall of the cavity.

[0042] Furthermore, the volume of the sink 104 of the filter body 100 is positively correlated with the size of the contact surface 101 of the filter body. It can be understood that, when the thickness of the tin brushing is constant, the larger the contact surface 101, the higher the tin content required on the contact surface, and the more tin will flow into the cavity 102 during heating. At this time, a larger volume of the sink is required to accommodate the overflowing tin. It is further explained that the volume of the sink 104 of the filter body 100 is positively correlated with the size of the contact surface 101 within a certain distance range around the cavity 102 where the sink 104 is located, because the probability of tin on the contact surface 101 exceeding a certain distance range from the cavity 102 flowing into the cavity is small and can be ignored. It can be understood that the volume of the sink is positively correlated with the size of the contact surface of the filter body; and / or, the volume of the sink is positively correlated with the size of the contact surface of the filter cover.

[0043] It should also be noted that the volume of the sink 104 on the filter body 100 is inversely proportional to the number of sinks within a certain distance range around the cavity 102 where the sink 104 is located. In some special cases, such as to reduce the area of ​​the contact surface, a sink with a large number of sinks and a small volume can be used. It is understandable that in order not to reduce the area of ​​the contact surface as much as possible, a sink with a small number of sinks and a large volume can also be used, that is, the sink has a contact surface as the bottom surface, has a deeper height, and thus has a larger volume. The specific number and volume design of the sink can be set according to actual conditions and are not limited here.

[0044] Further preferably, there should be a positioning component between the filter body 100 and the filter cover plate 200, that is, a positioning component for positioning the first part and the second part. The positioning component is used to weld and position the filter body 100 and the filter cover plate 200, that is, in order to reduce the displacement of the filter body 100 and the filter cover plate 200 due to the flow of tin or the expansion of the material thermal effect when heated, the displacement of the filter body 100 and the filter cover plate 200 when heated is controlled within a reasonable range. The positioning component is preferably a screw 300. When used in conjunction with the screw 300, a corresponding screw hole 103 needs to be opened on the filter body 100, and the screw hole 103 has a thread. A corresponding screw hole should also be opened on the filter cover plate 200. The screw hole on the filter cover plate 200 may not have a thread. The filter body 100 and the filter cover plate can be fixed together by screws. As a three-dimensional object, the filter needs to fix the filter body 100 and the filter cover 200 of the filter, that is, to limit their all degrees of freedom. At this time, at least three screws are required, and the position of at least one screw is not on the same line as the positions of the other two or more screws, that is, a surface of a point (one screw) and a line (the line connected by the other two screws) is formed. At this time, the filter body 100 and the filter cover 200 can be controlled to not move in four degrees of freedom within the contact surface, and the tightening of the screws limits the movement of the other two degrees of freedom of the filter body 100 and the filter cover 200, that is, the filter body 100 and the filter cover 200 are fixed.

[0045] See also Figure 5 It is understood that the sink grooves in the present application can be of various shapes. Specifically, the cross-sectional area of ​​the sink grooves can be arc-shaped or polygonal. According to the actual needs of the sealing product, one or more of the arc-shaped or polygonal cross-sectional areas of the sink grooves can be selected. Specifically, the cross-sectional area of ​​the sink groove is arc-shaped, which can be a major arc, a semicircle, a minor arc, etc.; the cross-sectional area of ​​the sink groove is polygonal, which can be a rectangle, a triangle, a hexagon, etc., which is not limited here. It is further preferred that, as Figure 5The rightmost one of the multiple sink grooves in the cross-section shown in the figure can be understood as the right side of the sink groove representing the cavity, and the side of the sink groove away from the inner wall of the cavity is deeper than the side close to the inner wall of the cavity, that is, the side of the sink groove close to the inner wall of the cavity has the function of blocking the tin that flows into the cavity during heating. It can be understood that such a sink groove not only accommodates the overflowing connecting material between the first part and the second part, but also plays a certain blocking role.

[0046] The present application provides a sink groove on the contact surface of the component parts, so that the sink groove of the sealing product with a cavity formed by the component parts can control the size of the contact surface area before welding, and accommodate part of the tin that melts at high temperature and flows into the cavity of the sealing product when heated. It can also reduce the weight of the sealing product, reduce the number and defective rate of welding rework of the sealing product, and enhance the reliability of welding of the sealing product. Furthermore, since the sink groove accommodates the excess solder and other connecting materials on the contact surface of the contact part, the distribution of the connecting materials on the contact part is more uniform, the local stress of the contact part is reduced, and the connection and fixing strength of the parts is improved. At the same time, the setting of the sink groove further indirectly increases the area of ​​the contact surface, further increases the contact sealing area of ​​the contact part, and thus improves the sealing effect between the first part and the second part.

[0047] The above contents are descriptions of the present application in combination with specific embodiments, and it cannot be considered that the specific implementation of the present application is limited to these embodiments. For ordinary technicians in the technical field to which the present application belongs, several changes and substitutions can be made without departing from the concept of the present application, which should be considered to belong to the protection scope of the present application.

Claims

1. A sealing product with a sink groove, characterized in that: The invention comprises a first part and a second part, wherein the first part and / or the second part has a cavity; the first part has a recessed groove at a contact portion with the second part; and / or the second part has a recessed groove at a contact portion with the first part; and at least part of the contact portion is provided with a connecting material; The sealing product is a filter, the first part is a filter body of the filter, and the second part is a filter cover plate of the filter; the contact portion between the filter body and the filter cover plate includes a contact surface, and the contact surface is coated with the connecting material; The sink groove is provided on the filter body, and the sink groove is provided inside the filter body with the contact surface as the bottom surface; and / or the sink groove is provided on the filter cover plate, and the sink groove is provided inside the filter cover plate with the contact surface as the bottom surface; The filter body has a cavity, and the sink groove includes a sink groove opened along the inner wall of the cavity; and / or the filter cover plate has a cavity, and the sink groove includes a sink groove opened along the inner wall of the cavity; the volume of the sink groove is positively correlated with the size of the contact surface within a certain distance range around the cavity where the sink groove is located, and the volume of the sink groove is also inversely proportional to the number of sink grooves within a certain distance range around the cavity where the sink groove is located; The side of at least one of the sinks away from the inner wall of the cavity is deeper than the side close to the inner wall of the cavity. The side of the sink close to the inner wall of the cavity has the function of blocking the tin flowing into the cavity during heating.

2. The sealing product with a sink groove according to claim 1, characterized in that: The connecting material is at least one of solder, thermal conductive adhesive and structural adhesive.

3. The sealing product with a sink groove according to claim 1, characterized in that: The filter body has a cavity, and the sink is provided on a path where the connecting material flows into the cavity; and / or, The filter cover plate has a cavity, and the sink is arranged on a path for the connection material to flow into the cavity.

4. The sealing product with a sink groove according to claim 1, characterized in that: The volume of the sink is positively correlated with the contact surface of the filter body; and / or, The volume of the sink is positively correlated with the contact surface of the filter cover.

5. The sealing product with a sink groove according to claim 1, characterized in that: The cross section of the sink is arc-shaped or polygonal.

6. The sealing product with a sink groove according to claim 1, characterized in that: Also includes: A positioning component for positioning the first part and the second part.

7. The sealing product with a sink groove according to claim 6, characterized in that: The positioning component is a positioning screw.

Images