A protective cover for a navigation main circuit board

Abstract

The utility model provides a navigation mainframe circuit board uses protection cover, including the board body, the board body upper surface sets up the limit recess, the limit recess bottom sets up and inserts the hole, the limit recess both sides set up and limit the through -hole, connect firm, long service life.

Description

Technical Field

[0001] This utility model relates to the field of navigation protective cover technology, specifically to a protective cover for a navigation host circuit board. Background Technology

[0002] With the continuous development of technology and the increasing reliance on navigation devices, the demand for navigation protective covers is becoming increasingly prominent. From a physical protection perspective, the cover must be robust and durable. In daily use, navigation devices may face accidental collisions, friction, and compression. The cover must effectively resist these external forces to prevent damage to the navigator and ensure the integrity of its delicate internal electronic components and circuitry. For example, if the navigation device collides with other objects inside the vehicle due to vibration or bumps while the vehicle is in motion, the cover should reliably cushion the impact, ensuring the normal operation of the navigation device.

[0003] Generally, navigation main units need to be connected to external devices via a cable. In existing protective covers, the cable needs to pass through the cover to connect to the navigation main unit. The stability between the navigation main unit and the cable depends solely on the connection point. During vehicle operation, the cable may become loose or detached from the navigation main unit due to vibration. Therefore, the protective cover plays a crucial role in positioning the cable.

[0004] For example, patent document with patent application number 202420017433.7 and publication date of August 23, 2024 discloses an embedded vehicle power module, including a housing with a receiving cavity inside. A power supply motherboard is installed in the receiving cavity. A USB port is embedded in the housing and connected to the power supply motherboard. Connection windows are symmetrically arranged on both sides of the housing, and connection windows are provided with connection rockers. Limiting protrusions are provided at the upper end of the connection windows on the housing. A wireless charging panel connected to the power supply motherboard is provided on the side of the housing with the USB port through a connection structure. The wireless charging panel is installed on the housing and can slide in the receiving cavity through the cooperation of a slide rail and a slider. When needed, the wireless charging panel can be pulled out to add a wireless charging panel to the product, meeting people's daily needs for wireless charging of electronic devices.

[0005] The above literature states that when the USB port is connected to the power supply motherboard, the connection relies entirely on the friction between the USB port and the power supply motherboard. Vibrations, bumps, and frequent plugging and unplugging operations during vehicle operation can easily cause the contact between the USB port and the power supply motherboard to loosen. Loosening of the USB port and the power supply motherboard can not only cause poor contact problems, but may also lead to power transmission interruption or instability, affecting the normal charging of electronic devices. For some protective covers that cover the circuit board, they need to protrude outwards. If a limiting hole is punched into the protective cover, it can easily cause damage to the outer shell in the edge area of ​​the limiting hole, thereby further reducing its service life and reliability. Summary of the Invention

[0006] This utility model provides a protective cover for a navigation host circuit board, which is easy to process and has a long service life.

[0007] To achieve the above objectives, the technical solution of this utility model is: a protective cover for a navigation host circuit board, comprising a board body, wherein a downwardly recessed limiting groove is provided on the upper surface of the board body, an insertion hole is provided at the bottom of the limiting groove, and limiting through holes are provided on both sides of the limiting groove, the limiting through holes communicating with the bottom of the limiting groove, and the length of the limiting through holes being greater than the groove width of the limiting groove.

[0008] The above configuration includes two limiting through holes on the board body, with the limiting groove recessed downwards to easily accommodate the circuit board connector. During the machining of the insertion hole, the two limiting through holes are first formed on the board body, and then the limiting groove and insertion hole are formed between them by stamping. The two limiting through holes prevent stress concentration around the limiting groove during stamping, thus avoiding damage. This facilitates machining and prevents stress concentration on the sidewalls when the protective cover is subjected to external forces, extending its service life. Furthermore, the length of the limiting through holes protrudes from the limiting groove, preventing excessive stress concentration in the length and width directions of the limiting groove and ensuring structural stability.

[0009] Furthermore, the two side walls of the limiting groove are inclined from both sides of the plate towards the insertion hole.

[0010] With the above settings, as the connecting cable enters the plug hole, it will gradually approach the center of the plug hole along the inclined direction of the side wall, so that the plug of the connecting cable can more accurately connect with the interface of the navigation host circuit board.

[0011] Furthermore, positioning parts are provided around the perimeter of the plate.

[0012] With the above configuration, the positioning unit can fix the board body to the navigation host circuit board. During the assembly process, the operator can quickly and accurately align the corresponding position of the navigation host circuit board with the positioning unit, and then place it firmly on the corresponding position of the navigation host circuit board.

[0013] Furthermore, the positioning part extends obliquely from the upper surface of the plate to the lower surface, and a positioning hole is provided in the middle of the positioning part.

[0014] The above configuration provides the mounting position for the fasteners, allowing them to pass through the plate and be fixedly connected to the corresponding position of the navigation host. When installing the plate, the operator needs to use a tool to insert the fastener into the positioning hole and tighten it. Since the positioning part extends inclinedly from the upper surface of the plate to the lower surface, the space above the limiting plate is relatively large. The operator has enough space to place their fingers and tools when performing the tightening operation, avoiding operational difficulties caused by narrow space or the tool colliding with other parts.

[0015] Furthermore, the plate body is provided with an avoidance hole on the side near the limiting groove.

[0016] The above settings, including the clearance holes, ensure that when the board is connected to the navigation host, space is left for the circuit board inside the navigation host, preventing the circuit board from being squeezed or blocked by the board.

[0017] Furthermore, a positioning protrusion that protrudes upward from the plate body is provided on the other side of the plate body near the limiting groove.

[0018] With the above settings, when the board is connected to the navigation host, the positioning protrusion can precisely match a specific part on the circuit board inside the navigation host, so that some key components are accurately placed in the positioning protrusion, realizing the positioning function and firmly fixing some components between the navigation motherboard and the board.

[0019] Furthermore, a first shielding part and a second shielding part are respectively provided on both sides of the plate. The first shielding part is provided with an extension part extending downward from the plate. The second shielding part is provided with a first plate extending downward. A notch is provided on the first plate. A reinforcing rib is provided on the upper end of the notch on the first plate.

[0020] With the above configuration, when the vehicle vibrates or bumps during driving, the shielding part on the board can provide additional support and fixation for the navigation host, limiting excessive shaking of the board; the extension part can go further into the interior of the navigation host, fit more tightly on the navigation host circuit board, and the reinforcing rib can significantly enhance the strength of the second shielding part while also forming a notch to facilitate wire passage.

[0021] Furthermore, the reinforcing ribs extend upwards from the first plate at the notch.

[0022] The above configuration, where the reinforcing ribs are formed by folding upwards, facilitates the processing to create the reinforcing ribs and notches.

[0023] Furthermore, a first cover plate and a second cover plate are respectively provided at both ends of the plate, and the bottom of the first cover plate is higher than the bottom of the second cover plate.

[0024] With the above configuration, the first cover plate can effectively prevent dust, impurities and other external environmental factors from entering the navigation host. When the navigation host is connected to the board, the height of the first cover plate is higher than that of the second cover plate, which can match the installation of components on different circuit boards and provide more space for the navigation host and the board.

[0025] Furthermore, a first notch is provided on the first shielding part, and the first notch extends upward from the bottom of the first shielding part.

[0026] The above design prevents excessive stress concentration on the first shielding part, ensuring good structural stability. Attached Figure Description

[0027] Figure 1 This is the main view of the present utility model. Figure 1 .

[0028] Figure 2 This is the main view of the present utility model. Figure 2 .

[0029] Figure 3 This is a top view of the present invention.

[0030] Figure 4 for Figure 2 A cross-sectional view along the AA direction.

[0031] Figure 5 for Figure 4 Enlarged view of point C in the middle.

[0032] Figure 6 for Figure 2 Cross-sectional view along the BB direction.

[0033] Figure 7 for Figure 6 Enlarged view of point D in the middle.

[0034] Figure 8 This is a perspective view of the present invention from another angle.

[0035] Reference numerals: 1-Plate body; 2-Positioning protrusion; 3-Limiting groove; 31-Insertion hole; 4-Positioning part; 41-Positioning hole; 5-First cover plate part; 6-Second cover plate part; 7-First shielding part; 71-Extension part; 70-First notch; 8-Allowing hole; 9-Limiting through hole; 10-Second shielding part; 100-First plate body; 101-Reinforcing rib; 102-Notch; Detailed Implementation

[0036] Example 1.

[0037] like Figure 1-8 As shown, a protective cover for a navigation host circuit board includes a board body 1. A limiting groove 3 is provided on the upper surface of the board body 1. A plug-in hole 31 is provided at the bottom of the limiting groove 3. Limiting through holes 9 are provided on both sides of the limiting groove 3. The board body 1 on one side of the limiting through hole 9 and the limiting groove 3 form a limiting part. Two limiting through holes 9 are provided on the board body 1. The length of the limiting through hole 9 is longer than the groove width of the limiting groove 3. This not only facilitates the efficient and precise formation of the limiting groove 3 structure through the stamping process, but also provides a plug-in hole 31 at the bottom of the limiting groove 3. An external connecting wire passes through the plug-in hole 31 and connects to the navigation host circuit board. During the connection operation, the outside of the connecting wire is effectively limited. That is, when the connecting wire passes through the plug-in hole 31, the plug-in hole 31 can limit the outside of the connecting wire laterally and position it vertically, effectively preventing problems such as loosening, falling off or damage at the interface between the connecting wire and the circuit board due to uneven force.

[0038] Positioning parts 4 are provided around the perimeter of the board 1. The positioning parts 4 can fix the board 1 to the navigation host circuit board. During the assembly process, the operator can quickly and accurately align the corresponding position of the navigation host circuit board with the positioning parts 4, and then place it firmly on the corresponding position of the navigation host circuit board.

[0039] The positioning part 4 extends obliquely from the upper surface of the plate 1 to the lower surface. A positioning hole 41 is provided in the middle of the positioning part 4. The positioning hole 41 provides an installation position for the fastener, so that the fastener can pass through the plate 1 and be fixedly connected to the corresponding position of the navigation host. When installing the plate 1, the operator needs to use a tool to insert the fastener into the positioning hole 41 and tighten it. Since the positioning part 4 extends obliquely from the upper surface of the plate 1 to the lower surface, that is, the space above the limiting plate is large, the operator has enough space to place his fingers and tools when performing the tightening operation, avoiding the operation difficulties caused by the narrow space or the tool colliding with other parts.

[0040] like Figure 2 As shown, a clearance hole 8 is provided on the side of the plate 1 near the limiting groove 3. The clearance hole 8 is provided to allow space for the circuit board inside the navigation host when the plate 1 is connected to the navigation host, so that the circuit board will not be squeezed or blocked by the plate 1.

[0041] like Figure 2-5 As shown, a first shielding part 7 is provided on one side along the length direction of the plate 1, and a second shielding part 10 is provided on the other side along the length direction of the plate 1. When the vehicle vibrates or bumps during driving, the shielding part on the plate 1 can provide additional support and fixation for the navigation host, limiting the excessive shaking of the plate 1.

[0042] The first shielding part 7 is provided with an insertion part 71 and a first notch 70, which extends upward from the bottom of the first shielding part. The second shielding part 10 is provided with a downwardly extending first plate 100, which is provided with a notch 102. A reinforcing rib 101 is provided on the upper end of the first plate 100 above the notch 102. The reinforcing rib extends upward from the first plate 100 at the notch 70. The insertion part 71 can further penetrate into the navigation host and fit more tightly on the navigation host circuit board. The reinforcing rib 101 can significantly enhance the strength of the second shielding part 10. When the navigation host is connected to the plate 1, the first shielding part 7 is higher than the second shielding part 10, and the second shielding part 10 can provide more space for the navigation host and the plate 1.

[0043] like Figure 6-7 As shown, the two side walls of the limiting groove 3 are inclined from both sides of the plate 1 toward the insertion hole 31. As the connecting wire enters the insertion hole 31, it will gradually approach the center of the insertion hole 31 along the inclined direction of the side wall, so that the plug of the connecting wire can be more accurately connected to the interface of the navigation host circuit board.

[0044] On the other side of the board body 1 near the limiting groove 3, there is a positioning protrusion 2. When the board body 1 is connected to the navigation host, the positioning protrusion 2 can precisely match a specific part on the circuit board inside the navigation host, so that some key components are accurately placed in the positioning protrusion 2 to achieve the positioning function and firmly fix some components between the navigation motherboard and the board body 1.

[0045] The positioning protrusion 2 is recessed from the lower surface to the upper surface of the plate 1. When the navigation host is connected to the plate 1, the positioning protrusion 2 is recessed from the lower surface to the upper surface of the plate 1. This not only positions some components, but also provides more space for the navigation host and the plate 1, making the structure more compact.

[0046] A first cover plate 5 extending downward from the plate is provided on one side along the width direction of the plate 1, and a second cover plate 6 extending downward from the plate is provided on the other side along the width direction of the plate 1. The bottom height of the first cover plate 5 is higher than the bottom height of the second cover plate 6. The first cover plate 5 can effectively prevent dust, impurities and other external environmental factors from entering the navigation host. When the navigation host is connected to the plate 1, the height of the first cover plate 5 is higher than the height of the second cover plate 6, and the second cover plate 6 can provide more space for the navigation host and the plate 1.

[0047] The working principle of this utility model is as follows: Two limiting through holes 9 are provided on the plate 1, which not only facilitates the efficient and precise formation of the limiting groove 3 structure through the stamping process, but also provides a plug-in hole 31 at the bottom of the limiting groove 3. The limiting groove is recessed downwards to facilitate the accommodation of the circuit board connector. When processing the plug-in hole, two limiting through holes are first formed on the plate, and then the limiting groove and plug-in hole are formed between the limiting through holes by stamping. Due to the setting of two limiting through holes, the plate around the limiting groove of the protective cover is prevented from being damaged due to excessive stress concentration caused by external force during the stamping process. The processing is convenient. At the same time, when the protective cover is subjected to external force during use, stress concentration will not occur at the side wall position, which will cause damage to the protective cover, thus improving the service life. In addition, the length of the limiting through holes is set so that the limiting through holes protrude from the limiting groove, thereby preventing excessive stress concentration in the length and width directions of the limiting groove and ensuring the stability of the structure.

Claims

1. A protective cover for a navigation host circuit board, comprising a board body, characterized in that: The upper surface of the plate is provided with a downwardly recessed limiting groove, and the bottom of the limiting groove is provided with an insertion hole. Limiting through holes are provided on both sides of the limiting groove, and the limiting through holes are connected to the bottom of the limiting groove. The length of the limiting through holes is greater than the width of the limiting groove. A first blocking part and a second blocking part are respectively provided on both sides of the plate. The first blocking part is provided with an extension part extending downward from the plate. The second blocking part is provided with a first plate extending downward. A notch is provided on the first plate, and a reinforcing rib is provided on the upper end of the first plate.

2. The protective cover for a navigation host circuit board according to claim 1, characterized in that: The two side walls of the limiting groove are inclined from both sides of the plate towards the insertion hole.

3. The protective cover for a navigation host circuit board according to claim 1, characterized in that: Positioning parts are provided around the perimeter of the plate.

4. A protective cover for a navigation host circuit board according to claim 3, characterized in that: The positioning part extends obliquely from the upper surface of the plate to the lower surface, and a positioning hole is provided in the middle of the positioning part.

5. A protective cover for a navigation host circuit board according to claim 1, characterized in that: An avoidance hole is provided on the side of the plate near the limiting groove.

6. A protective cover for a navigation host circuit board according to claim 1, characterized in that: The plate body is provided with a positioning protrusion that protrudes upward from the plate body on the other side near the limiting groove.

7. A protective cover for a navigation host circuit board according to claim 1, characterized in that: The reinforcing ribs extend upwards from the first plate at the notch.

8. A protective cover for a navigation host circuit board according to claim 7, characterized in that: The plate has a first cover plate and a second cover plate at its two ends, and the bottom of the first cover plate is higher than the bottom of the second cover plate.

9. A protective cover for a navigation host circuit board according to claim 1, characterized in that: The first shielding part has a first notch, which extends upward from the bottom of the first shielding part.

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