Circuit board mounting structure

Abstract

The utility model relates to the technical field of sealing installation, in particular to a circuit board installation structure which comprises an upper shell and a lower shell which are buckled to form a containing cavity, a circuit board is arranged in the containing cavity, and a connector is arranged on the surface of the side, close to the upper shell, of the circuit board. The upper shell is provided with a fence protection structure extending towards the circuit board, a first sealing structure is clamped between the fence protection structure and the surface of the circuit board, and the first sealing structure is arranged in the circumferential direction of the connector. The embodiment of the utility model is not only suitable for connectors with irregular shapes and complex structures, but also can effectively reduce the manufacturing cost.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of sealing installation, in particular to a circuit board installation structure. BACKGROUND

[0002] New energy vehicles have higher and higher requirements for the performance and environment of HUD (head-up display), which includes the dustproof and waterproof requirements of the HUD. In the existing HUD device, the circuit board is arranged on the side, and dust and water can easily enter the installation chamber from the connector position, which can damage the internal device structure and reduce the service life.

[0003] At present, a rubber sleeve is usually sleeved on the connector, and then the rubber sleeve is compressed by the upper and lower shells, but this method is only suitable for dustproof and waterproof of connectors with regular shape and simple structure, and the cost is relatively high, and the dustproof and waterproof of connectors with irregular shape or complex structure cannot be effectively realized. CONTENT OF THE UTILITY MODEL

[0004] The application aims to provide a circuit board installation structure which is suitable for connectors with irregular shape and complex structure and can effectively reduce the manufacturing cost.

[0005] The embodiment of the application is implemented as follows:

[0006] The embodiment of the application provides a circuit board installation structure, which comprises an upper shell and a lower shell which are buckled to form a containing chamber, a circuit board is arranged in the containing chamber, a connector is arranged on the surface of the circuit board close to the upper shell, a surrounding protection structure extending to the circuit board is arranged on the upper shell, a first sealing structure is arranged between the surrounding protection structure and the surface of the circuit board, and the first sealing structure is arranged in the circumferential direction of the connector.

[0007] As an optional implementation, the lower shell and the side edge of the circuit board have a gap, and the second sealing structure is arranged in the gap to seal the gap.

[0008] As an optional implementation, a window is arranged on the side wall of the upper shell, the connector passes through the window to the outside of the containing chamber, the second sealing structure is bonded to the side edge of the circuit board through the adhesive, the position of the second sealing structure corresponds to the connector, and the length of the second sealing structure is greater than or equal to the projection length of the window on the circuit board.

[0009] As an optional implementation, the surrounding protection structure is a U-shaped structure, the opening of the U-shaped structure faces the window, and the connector is located in the U-shaped structure and passes out through the window.

[0010] As an optional implementation, one side of the first sealing structure is bonded to the U-shaped structure with adhesive backing, and the other side abuts against the circuit board.

[0011] As an optional implementation, there are at least two connectors, and a plurality of enclosure protection structures are provided on the upper housing, with each of the plurality of enclosure protection structures corresponding to a position of one of the connectors.

[0012] As an optional implementation, both the first sealing structure and the second sealing structure include any one of foam sealing strips, silicone sealing strips, and polyurethane sealing strips.

[0013] As an optional implementation, the upper housing is provided with a first support portion that abuts against one side surface of the circuit board, and the lower housing is provided with a second support portion that abuts against the other side surface of the circuit board, wherein the projections of the first support portion and the second support portion on the circuit board coincide.

[0014] As an optional implementation, a positioning hole is provided on the circuit board, and a positioning part inserted into the positioning hole is provided on the first support part or the second support part.

[0015] As an optional implementation, the first support portion and the second support portion are provided with connecting holes, and locking elements are installed in the connecting holes.

[0016] The beneficial effects of the embodiments of this application include:

[0017] The embodiments of this application can enhance dustproof and waterproof performance: by adopting a combination of enclosure protection structure and first sealing structure, it can effectively prevent external dust and moisture from entering the accommodating cavity and avoid these foreign objects from damaging the circuit board and other internal components.

[0018] The embodiments of this application can improve service life and reliability: by effectively isolating factors that may cause failure, such as moisture and dust, the service life of the circuit board and the entire HUD device is extended, and its stability and reliability during operation are improved.

[0019] The embodiments of this application have wider applicability: compared with the traditional method of using rubber sleeves, this new design is not only suitable for connectors with regular and simple shapes, but also achieves a good sealing effect for connectors with irregular shapes or complex structures, thus broadening the scope of application. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is one of the schematic diagrams of the circuit board mounting structure according to an embodiment of this application;

[0022] Figure 2 This is a second schematic diagram of the circuit board mounting structure according to an embodiment of this application;

[0023] Figure 3 This is the third schematic diagram of the circuit board mounting structure according to an embodiment of this application;

[0024] Figure 4 This is the fourth schematic diagram of the circuit board mounting structure according to an embodiment of this application;

[0025] Figure 5 This is the fifth schematic diagram of the circuit board mounting structure in the embodiments of this application.

[0026] Icons: 100-Upper housing; 101-Lower housing; 102-Circuit board; 103-Connector; 104-Enclosure protection structure; 105-First sealing structure; 106-Second sealing structure; 107-Window; 108-U-shaped structure; 109-First support part; 110-Second support part; 111-Positioning hole. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0029] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0030] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0031] New energy vehicles have increasingly higher requirements for HUD performance and environmental protection, including dust and water resistance. In existing HUD devices, the circuit board 102 is located on the side, allowing dust and water to easily enter the mounting cavity directly from the connector 103, damaging the internal components and reducing their lifespan.

[0032] Currently, a rubber sleeve is usually placed on the connector 103, and then the upper and lower shells are used to press the rubber sleeve together. However, this method is only suitable for dust and water protection of connectors 103 with regular shape and simple structure. At the same time, the cost is high. It cannot achieve effective dust and water protection for connectors 103 with irregular shape or complex structure.

[0033] To address the aforementioned technical problems, this application provides a circuit board 102 mounting structure.

[0034] Reference Figure 1 , Figure 2 as well as Figure 3 As shown, the circuit board 102 mounting structure provided in this application embodiment includes an upper housing 100 and a lower housing 101 that are fastened together to form an accommodating cavity. A circuit board 102 is provided in the accommodating cavity. A connector 103 is provided on the surface of the circuit board 102 near the upper housing 100. A protective enclosure structure 104 extending toward the circuit board 102 is provided on the upper housing 100. A first sealing structure 105 is sandwiched between the protective enclosure structure 104 and the surface of the circuit board 102. The first sealing structure 105 is arranged circumferentially around the connector 103.

[0035] In this embodiment, the upper and lower housings 101 are fastened together to form a closed accommodating chamber to house the circuit board 102. A protective enclosure structure 104 extending toward the circuit board 102 is provided on the surface of the upper housing 100 near the circuit board 102. This structure is arranged around the connector 103 and is integrally formed with the upper housing 100, which increases the stability of the overall structure.

[0036] It should be noted that the enclosure protection structure 104 in this embodiment is integrally formed with the upper housing 100. That is, one side of the enclosure protection structure 104 is connected to the upper housing 100, and the other side extends towards the circuit board 102. The enclosure protection structure 104 surrounds the connector 103 circumferentially. At this time, a gap will be generated between the enclosure protection structure 104 and the circuit board 102. In this embodiment, a first sealing structure 105 is used to seal the gap between the enclosure protection structure 104 and the circuit board 102.

[0037] It should be noted that, in this embodiment of the application, the connector 103 is completely isolated from the rest of the circuit board 102 in the accommodating cavity by the first sealing structure 105 and the enclosure protection structure 104, which effectively prevents foreign objects such as water vapor and dust from entering the accommodating cavity and causing damage to other components of the circuit board 102, thereby ensuring the service life of the circuit board 102.

[0038] It should be noted that the circuit board 102 mounting structure provided in this application embodiment is mainly applied to vehicle HUD devices. By mounting the circuit board 102 of the vehicle HUD device, the failure rate can be effectively reduced and the reliability and stability of the vehicle HUD device can be improved.

[0039] It should be noted that the enclosure protection structure 104 in this application embodiment can be a U-shaped structure 108 or a C-shaped structure. This application embodiment does not make any special limitation on this, and those skilled in the art can choose according to their needs.

[0040] Connectors 103 are arranged inside the U-shaped structure 108 and the C-shaped structure. At this time, the connectors 103 can be arranged inside the enclosure protection structure 104 regardless of whether they are regular or irregular in shape. The enclosure protection structure 104 isolates the connectors 103, and the first sealing structure 105 seals the enclosure protection structure 104 and the circuit board 102.

[0041] The technical effects that the embodiments of this application can produce are as follows:

[0042] The embodiments of this application can enhance dustproof and waterproof performance: by combining the enclosure protection structure 104 and the first sealing structure 105, external dust and moisture can be effectively prevented from entering the accommodating cavity, thus avoiding damage to the circuit board 102 and other internal components caused by these foreign objects.

[0043] The embodiments of this application can improve service life and reliability: by effectively isolating factors that may cause failure, such as moisture and dust, the service life of the circuit board 102 and the entire HUD device is extended, and the stability and reliability of its operation are improved.

[0044] The embodiments of this application have wider applicability: compared with the traditional method of using rubber sleeves, this new design is not only suitable for connectors 103 with regular and simple shapes, but also achieves a good sealing effect for connectors 103 with irregular shapes or complex structures, thus broadening the scope of application.

[0045] The technical solutions provided in this application are not only easy to implement and widely adaptable, but also have lower implementation costs.

[0046] In existing vehicle HUD devices, the connector 103 on the circuit board 102 lacks effective protection and is easily affected by external dust and moisture, leading to an increased equipment failure rate. Therefore, for vehicle HUD devices, adopting the technical solution of this application can improve their dustproof and waterproof performance to adapt to harsher working environments.

[0047] Reference Figure 2 , Figure 4 As shown, in one optional embodiment, the lower housing 101 and the side of the circuit board 102 have a gap, and a second sealing structure 106 is also included in the gap for sealing the gap.

[0048] Furthermore, since there is a gap between the lower housing 101 and the side of the circuit board 102, this embodiment of the application provides a second sealing structure 106 to seal and protect the side of the circuit board 102.

[0049] It should be noted that the gap between the lower housing 101 and the side of the circuit board 102 can become a potential channel for dust and moisture to enter the accommodating chamber, thereby affecting the normal operation of the internal components. The second sealing structure 106 of this embodiment is located on the side of the circuit board 102 and is arranged along the edge of the circuit board 102, forming an additional sealing barrier.

[0050] It should be noted that the first sealing structure 105 in this embodiment is arranged circumferentially around the connector 103 to isolate the connector 103 from other parts within the accommodating cavity. The second sealing structure 106 is arranged along the side of the circuit board 102, and its arrangement path intersects perpendicularly with the first sealing structure 105. The arrangement of the first sealing structure 105 and the second sealing structure 106 enables the enclosure protection structure 104 to seal and isolate the connector 103 from the internal space of the accommodating housing.

[0051] This embodiment of the application forms a multi-layered, multi-directional sealing system through the cooperation of the first sealing structure 105 and the second sealing structure 106, which can effectively prevent dust and moisture from entering the accommodating cavity from any direction. This design of this embodiment of the application not only solves the sealing problem around the connector 103, but also covers potential leakage points on the side of the circuit board 102, providing more comprehensive protection.

[0052] This embodiment of the application provides comprehensive sealing protection to prevent external objects from corroding the circuit board 102 and other internal components, reducing the risk of failure due to environmental factors. This enhances the reliability and stability of the device, thereby extending the overall lifespan of the HUD.

[0053] Reference Figure 3 , Figure 4 As shown, in one optional embodiment, a window 107 is opened on the side wall of the upper housing 100, and the connector 103 passes through the window 107 to the outside of the receiving chamber; the second sealing structure 106 is bonded to the side of the circuit board 102 by adhesive backing, the position of the second sealing structure 106 corresponds to the connector 103, and the length of the second sealing structure 106 is greater than or equal to the projection length of the window 107 on the circuit board 102.

[0054] It should be noted that a window 107 is provided on the side wall of the upper housing 100 so that the connector 103 can pass through this window 107 to reach the outside of the receiving cavity. This design of the embodiments of this application ensures that the connector 103 can be easily externally connected while maintaining the compactness of the entire device.

[0055] The second sealing structure 106 in this embodiment adopts an adhesive-backed design, allowing it to be directly bonded to the side of the circuit board 102. In this way, the second sealing structure 106 not only fills the gap between the circuit board 102 and the lower housing 101, but also enhances the overall sealing performance.

[0056] It should be noted that the position of the second sealing structure 106 corresponds to that of the connector 103. Specifically, the second sealing structure 106 is arranged below the connector 103 to provide the most effective sealing protection for the gap between the lower housing 101 and the circuit board 102.

[0057] It should be noted that the length of the second sealing structure 106 is designed to be greater than or equal to the projected length of the window 107 on the circuit board 102, so as to effectively prevent dust and moisture from entering the receiving cavity from the lower edge of the window 107 even when the connector 103 passes through the window 107.

[0058] The second sealing structure 106 of this embodiment is directly bonded to the side of the circuit board 102, especially around the connector 103, providing a reliable sealing structure and significantly improving the dustproof and waterproof capabilities of this area.

[0059] Since the connector 103 needs to pass through the window 107 on the side wall of the upper housing 100, it is particularly important to form a reliable seal on the underside of the window 107. The length design of the second sealing structure 106 ensures that it can effectively block the intrusion of foreign objects even at the window 107. It should be noted that the underside of the window 107 is specifically the side of the circuit board 102 that faces away from the upper housing 100.

[0060] Additionally, it should be noted that this embodiment uses adhesive to fix the second sealing structure 106 to the circuit board 102, simplifying the assembly process and reducing the need for additional fasteners or complex installation procedures required in traditional methods. Since the second sealing structure 106 is adhesively fixed, if repair or replacement of internal components is required, the sealing performance can be quickly restored by removing the old sealing structure and re-attaching the new one, reducing maintenance difficulty.

[0061] Reference Figure 4 As shown, as an optional implementation, the enclosure protection structure 104 is a U-shaped structure 108, with the opening of the U-shaped structure 108 facing the window 107; the connector 103 is located in the U-shaped structure 108 and passes through the window 107.

[0062] Furthermore, in this embodiment, the enclosure protection structure 104 is designed in a U-shape, with its opening facing the window 107 on the side wall of the upper housing 100. The U-shaped structure 108 effectively surrounds the connector 103, providing physical protection and sealing support. The connector 103 is placed inside the U-shaped structure 108, ensuring that it is completely surrounded and protected. Through the window 107 on the upper housing 100, the connector 103 can smoothly extend outside the receiving cavity for external connection.

[0063] It should be noted that the first sealing structure 105 is still sandwiched between the U-shaped enclosure protection structure 104 and the circuit board 102, and is arranged around the connector 103 to ensure a good seal around the connector 103. The second sealing structure 106 is bonded to the side of the circuit board 102, and its length is designed to be greater than or equal to the projected length of the window 107 on the circuit board 102 to ensure an effective seal in the area of ​​the window 107.

[0064] As an optional implementation, one side of the first sealing structure 105 is bonded to the U-shaped structure 108 with adhesive backing, and the other side abuts against the circuit board 102.

[0065] It should be noted that one side of the first sealing structure 105 is directly bonded to the inner wall of the U-shaped enclosure protection structure 104 using adhesive, while the other side is in close contact with the surface of the circuit board 102, ensuring that the gap between the two is completely filled and a good seal is achieved. The use of adhesive ensures that the first sealing structure 105 can be firmly attached to the U-shaped enclosure protection structure 104, preventing seal failure due to vibration or other external forces.

[0066] Because the first sealing structure 105 is arranged circumferentially around the connector 103 and is bonded to the U-shaped enclosure protection structure 104 with adhesive backing, a complete sealing loop is formed. This design ensures the sealing around the connector 103, preventing moisture, dust and other foreign objects from entering the receiving chamber from around the connector 103.

[0067] The embodiments of this application can ensure that the sealing material always maintains the correct position during assembly and use, and will not shift due to vibration or external impact.

[0068] Furthermore, this embodiment uses adhesive backing to fix the first sealing structure 105 to the U-shaped enclosure protection structure 104, reducing the need for traditional mechanical clamping or complex assembly processes. This not only reduces assembly difficulty but also improves production efficiency, while reducing potential human error during assembly.

[0069] Reference Figure 3 , Figure 4 As shown, as an optional implementation, there are at least two connectors 103, and a plurality of protective structures 104 are provided on the upper housing 100, with each of the multiple protective structures 104 corresponding to a position of a connector 103.

[0070] It should be noted that the number of connectors 103 in this embodiment can be set by those skilled in the art as needed, and no special limitation is made thereto.

[0071] The first sealing structure 105 and the second sealing structure 106 each include any one of foam sealing strip, silicone sealing strip and polyurethane sealing strip.

[0072] Reference Figure 3 , Figure 4 as well as Figure 5 As shown, in one optional embodiment, the upper housing 100 is provided with a first support portion 109 that abuts against one side surface of the circuit board 102, and the lower housing 101 is provided with a second support portion 110 that abuts against the other side surface of the circuit board 102. The projections of the first support portion 109 and the second support portion 110 on the circuit board 102 coincide.

[0073] In this embodiment, the circuit board 102 can be clamped on the upper and lower sides by the first support part 109 and the second support part 110. The circuit board 102 can be reliably fixed in the mounting structure by the first support part 109 and the second support part 110.

[0074] Reference Figure 4 As shown, as an optional implementation, a positioning hole 111 is provided on the circuit board 102, and a positioning part inserted into the positioning hole 111 is provided on the first support part 109 or the second support part 110.

[0075] Furthermore, the embodiment itself enables precise positioning of the circuit board 102 by opening a positioning hole 111 on the circuit board 102 and inserting the first support part 109 or the second support part 110 into the positioning hole 111.

[0076] As an optional implementation, the first support portion 109 and the second support portion 110 are provided with connecting holes, and locking elements are installed in the connecting holes.

[0077] For example, the second support portion 110 is provided with a threaded hole, and the locking member is a bolt, which passes through the first support portion 109 and connects to the threaded hole on the second support portion 110.

[0078] The upper housing 100 and lower housing 101 can be secured by installing locking components. Furthermore, placing the connecting holes on the first support portion 109 and the second support portion 110 does not occupy additional space, thus reducing the overall space occupied by the housing.

[0079] In addition, as needed, a snap-fit ​​connector is provided between the upper housing 100 and the lower housing 101 to facilitate quick installation of the upper housing 100 and the lower housing 101.

[0080] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A wiring board mounting structure characterized by comprising: The application relates to a connector, which comprises an upper shell (100) and a lower shell (101) that are buckled to form a containing cavity, a circuit board (102) is arranged in the containing cavity, a connector (103) is arranged on the side surface of the upper shell (100) close to the circuit board (102), a fence protection structure (104) is arranged on the upper shell (100) and extends to the circuit board (102), a first sealing structure (105) is arranged between the fence protection structure (104) and the surface of the circuit board (102), and the first sealing structure (105) is arranged in the circumferential direction of the connector (103).

2. The structure according to claim 1, wherein The lower shell (101) and the side edge of the circuit board (102) have a gap, and a second sealing structure (106) is arranged in the gap to seal the gap.

3. The structure according to claim 2, wherein A window (107) is arranged on the side wall of the upper shell (100), the connector (103) passes through the window (107) to the outside of the containing cavity, the second sealing structure (106) is bonded to the side edge of the circuit board (102) through back glue, the position of the second sealing structure (106) corresponds to the connector (103), and the length of the second sealing structure (106) is greater than or equal to the projection length of the window (107) on the circuit board (102).

4. The structure according to claim 3, wherein The fence protection structure (104) is a U-shaped structure (108), the opening of the U-shaped structure (108) faces the window (107), and the connector (103) is located in the U-shaped structure (108) and passes out through the window (107).

5. The structure according to claim 4, wherein One side of the first sealing structure (105) is bonded to the U-shaped structure (108) through back glue, and the other side is abutted to the circuit board (102).

6. The structure according to any one of claims 1 to 5, wherein There are at least two connectors (103), and a plurality of fence protection structures (104) are arranged on the upper shell (100), and the plurality of fence protection structures (104) correspond to the positions of the connectors (103) one by one.

7. The structure according to any one of claims 2 to 5, wherein The first sealing structure (105) and the second sealing structure (106) each comprise any one of a foam sealing strip, a silica gel sealing strip and a polyurethane sealing strip.

8. The structure according to any one of claims 1 to 5, wherein A first supporting part (109) is arranged on the upper shell (100) and abuts against one side surface of the circuit board (102), a second supporting part (110) is arranged on the lower shell (101) and abuts against the other side surface of the circuit board (102), and the projections of the first supporting part (109) and the second supporting part (110) on the circuit board (102) are coincident.

9. The structure according to claim 8, wherein A positioning hole (111) is arranged on the circuit board (102), and a positioning part is arranged on the first supporting part (109) or the second supporting part (110) and is inserted into the positioning hole (111).

10. The structure according to claim 8, wherein The first supporting part (109) and the second supporting part (110) are provided with connecting holes, and locking members are arranged in the connecting holes.

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