Sealing structure of circuit board connector

Abstract

The utility model discloses a sealing structure of a circuit board connector. The sealing structure comprises a circuit board, a connector and a shell. The connector is mounted on the circuit board; the circuit board is mounted in the shell, a connector mounting hole is formed in the shell, and at least part of the connector extends out of the connector mounting hole; one side, close to the circuit board, of the shell is provided with a circle of first sealing groove on the periphery of the connector mounting hole, the connector is provided with a circle of first bulge, the first bulge is embedded into the first sealing groove, and a sealing material is arranged between the first bulge and the shell; the first protrusion is provided with a first side face close to the connector mounting hole and a second side face away from the connector mounting hole, the second side face is perpendicular to the board face of the circuit board, and an included angle is formed between the first side face and the second side face, so that the width of the protrusion is gradually narrowed from the end close to the circuit board to the end away from the circuit board. Through the arrangement, moisture, dust and other impurities can be prevented from invading the electronic equipment, so that the electrical function of the electronic equipment is guaranteed.

Description

Technical Field

[0001] This application relates to the field of circuit board connector technology, and in particular to a sealing structure for a circuit board connector. Background Technology

[0002] Circuit board connectors are used to connect two or more electrical appliances or circuits to transmit AC, DC current, or carrier signals. Connectors ensure the efficient and stable operation of electronic equipment and systems, and are an indispensable part of modern electronic engineering. Circuits or products using connectors facilitate inspection and repair.

[0003] The circuit board connectors and the electronic device housing need to have good sealing performance to prevent moisture, dust and other impurities from entering the electronic device, thereby ensuring the electrical function of the electronic device. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the purpose of this application is to provide a sealing structure for circuit board connectors, which has good sealing performance and can prevent moisture, dust and other impurities from entering electronic equipment, thereby ensuring the electrical function of electronic equipment.

[0005] To achieve the above objectives, this application adopts the following technical solution:

[0006] This application provides a sealing structure for a circuit board connector, comprising: a circuit board, a connector, and a housing; the connector is mounted on the circuit board; the circuit board is mounted inside the housing, and the housing has a connector mounting hole, with the connector at least partially extending out of the connector mounting hole; a first sealing groove is provided around the outer periphery of the connector mounting hole on the side of the housing near the circuit board, and a first protrusion is provided on the connector, the first protrusion being embedded in the first sealing groove, and a sealing material being provided between the first protrusion and the housing; the first protrusion has a first side surface near the connector mounting hole and a second side surface away from the connector mounting hole, the second side surface being perpendicular to the surface of the circuit board, and an angle being formed between the first side surface and the second side surface, such that the width of the protrusion gradually narrows from the end near the circuit board to the end away from the circuit board.

[0007] As a preferred technical solution, the connector is recessed into the circuit board on the side near the first side to form a second sealing groove, and the housing is provided with a second protrusion, which is embedded in the second sealing groove.

[0008] As a preferred technical solution, the second protrusion has a third side surface close to the connector mounting hole and a fourth side surface away from the connector mounting hole, and a gap is formed between the third side surface and the groove wall of the second sealing groove.

[0009] As a preferred technical solution, the housing is provided with a first protrusion, which is disposed on one side of the third side surface of the housing, and the first protrusion abuts against the connector to seal the gap.

[0010] As a preferred technical solution, the sealing material is resin sealant.

[0011] As a preferred technical solution, the housing is provided with a second protrusion, which is located on the side of the first sealing groove away from the second side. The second protrusion protrudes towards the circuit board, and the distance from the second protrusion to the circuit board is less than the distance from the bottom of the second sealing groove to the circuit board.

[0012] Compared with the prior art, the beneficial effects of this application are as follows:

[0013] The sealing structure of the circuit board connector in this application has good sealing performance, which can prevent moisture, dust and other impurities from entering the electronic equipment, thereby ensuring the electrical function of the electronic equipment. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the sealing structure of the circuit board connector in this application;

[0015] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;

[0016] Wherein: 1. Housing; 11. First protrusion; 12. Second protrusion; 2. Connector; 3. Circuit board; 4. First sealing groove; 5. First protrusion; 501. First side; 502. Second side; 6. Sealing material; 7. Second sealing groove; 8. Second protrusion; 801. Third side; 802. Fourth side; 9. Gap. Detailed Implementation

[0017] To enable those skilled in the art to better understand the present application, the technical solutions in specific embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.

[0018] like Figure 1 and Figure 2 As shown, this application provides a sealing structure for a circuit board connector, which includes a circuit board 3, a connector 2, and a housing 1.

[0019] Connector 2 is fixedly mounted on circuit board 3. Circuit board 3 is mounted inside housing 1, and housing 1 has mounting holes for connector 2. Connector 2 extends at least partially out of the mounting holes. One end of connector 2 is connected to electronic components on circuit board 3, and external electrical equipment is connected to the other end of connector 2, thereby connecting two or more electrical appliances or circuits to transmit AC, DC current, or carrier signals.

[0020] On the side of the housing 1 near the circuit board 3, a first sealing groove 4 is provided around the mounting hole of the connector 2. A first protrusion 5 is provided on the connector 2. The first protrusion 5 is embedded in the first sealing groove 4. A sealing material 6 is provided between the first protrusion 5 and the housing 1.

[0021] The first protrusion 5 has a first side 501 close to the mounting hole of the connector 2 and a second side 502 away from the mounting hole of the connector 2. The second side 502 is perpendicular to the surface of the circuit board 3. An angle is formed between the first side 501 and the second side 502, such that the width of the protrusion gradually narrows from the end close to the circuit board 3 to the end away from the circuit board 3.

[0022] When the circuit board 3 or connector 2 is fixedly installed on the housing 1, since the first side 501 is inclined relative to the installation direction of the connector 2, the first side 501 of the connector 2 will apply a pressing force perpendicular to the first side 501 to the sealing material 6, thereby compressing the sealing material 6 and ensuring good adhesion between the sealing material 6 and the first protrusion 5 and the groove wall of the first sealing groove 4, thus improving the sealing effect between the connector 2 and the housing 1. Therefore, the sealing structure of this application has good sealing performance and can prevent moisture, dust and other impurities from entering the electronic equipment, thereby ensuring the electrical function of the electronic equipment.

[0023] As one implementation, the connector 2 is recessed into the circuit board 3 on the side near the first side 501 to form a second sealing groove 7, and the housing 1 is provided with a second protrusion 8, which is embedded in the second sealing groove 7. Through the above arrangement, an S-shaped sealing gap 9 is formed between the connector 2 and the housing 1, making it more difficult for moisture, dust and other impurities to enter the interior of the housing 1 through the tortuous sealing gap 9, thus improving the sealing effect between the connector 2 and the housing 1.

[0024] In one implementation, the second protrusion 8 has a third side 801 close to the mounting hole of the connector 2 and a fourth side 802 away from the mounting hole of the connector 2. A gap 9 is formed between the third side 801 and the groove wall of the second sealing groove 7. When the first side 501 of the connector 2 applies a clamping force perpendicular to the first side 501 to the sealing material 6, this clamping force indirectly affects the second protrusion 8, causing the second protrusion 8 to deflect toward the mounting hole of the connector 2. The gap 9 formed between the third side 801 and the groove wall of the second sealing groove 7 provides space for the deflection of the second protrusion 8.

[0025] As one implementation, the housing 1 is provided with a first protrusion 11, which is disposed on one side of the third side surface 801 on the housing 1. The first protrusion 11 abuts against the connector 2 to seal the gap 9, thereby preventing moisture, dust and other impurities from entering the gap 9.

[0026] As one implementation method, the sealing material 6 is a resin sealant, which has excellent sealing properties and high bonding strength. On the one hand, the resin sealant can be deformed under pressure to adapt to the shape of the sealing gap 9; on the other hand, the resin sealant can adhere to and absorb dust and other impurities, thereby preventing dust and other impurities from entering the interior of the housing 1.

[0027] In one implementation, the housing 1 has a second protrusion 12, which is located on the side of the first sealing groove 4 away from the second side 502. The second protrusion 12 protrudes towards the circuit board 3, and the distance d1 from the second protrusion 12 to the circuit board 3 is less than the distance d2 from the bottom of the second sealing groove 7 to the circuit board 3. After the resin sealant is compressed, both ends of the resin sealant extend towards the circuit board 3. After the resin sealant reaches the bottom of the second sealing groove 7, it is pressed against the bottom of the second sealing groove 7, and the extension of both ends of the resin sealant is greatly reduced. Therefore, the distance from the second protrusion 12 to the circuit board 3 is less than the distance from the bottom of the second sealing groove 7 to the circuit board 3, which can prevent the resin sealant from overflowing from the sealing gap 9.

[0028] It should be noted that the terms "first," "second," and similar terms used in this application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, "a" or "one," and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. "A plurality" or "several" indicates at least two. Unless otherwise stated, terms such as "front," "back," "left," "right," "lower," and / or "upper" are for illustrative purposes only and are not limited to a location or spatial orientation. Terms such as "comprising" or "including" indicate that the elements or objects preceding "comprising" encompass the elements or objects listed following "comprising" or "including" and their equivalents, and do not exclude other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect.

[0029] The singular forms “a,” “the,” and “the” used in this application specification and appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0030] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A sealing structure for a circuit board connector, comprising: Circuit board; A connector, which is mounted on the circuit board; The housing has a circuit board installed inside it, and the housing has connector mounting holes, with at least a portion of the connector extending out of the connector mounting holes. Its features are, The housing has a first sealing groove around the connector mounting hole on the side near the circuit board. The connector has a first protrusion, which is embedded in the first sealing groove. A sealing material is provided between the first protrusion and the housing. The first protrusion has a first side surface close to the connector mounting hole and a second side surface away from the connector mounting hole. The second side surface is perpendicular to the surface of the circuit board. An angle is formed between the first side surface and the second side surface, such that the width of the protrusion gradually narrows from the end close to the circuit board to the end away from the circuit board.

2. The sealing structure of the circuit board connector according to claim 1, characterized in that, The connector has a recessed side near the first side into the circuit board to form a second sealing groove, and the housing has a second protrusion that is embedded in the second sealing groove.

3. The sealing structure of the circuit board connector according to claim 2, characterized in that, The second protrusion has a third side surface close to the connector mounting hole and a fourth side surface away from the connector mounting hole, and a gap is formed between the third side surface and the groove wall of the second sealing groove.

4. The sealing structure of the circuit board connector according to claim 3, characterized in that, The housing has a first protrusion, which is located on one side of the third side surface of the housing. The first protrusion abuts against the connector to seal the gap.

5. The sealing structure of the circuit board connector according to claim 4, characterized in that, The sealing material is resin sealant.

6. The sealing structure of the circuit board connector according to any one of claims 5, characterized in that, The housing is provided with a second protrusion, which is located on the side of the first sealing groove away from the second side. The second protrusion protrudes toward the circuit board, and the distance from the second protrusion to the circuit board is less than the distance from the bottom of the second sealing groove to the circuit board.

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