Vehicle-mounted navigation central control system

Abstract

The utility model relates to a vehicle-mounted navigation central control system, which relates to the technical field of vehicle-mounted central control, and comprises a main board and a core board arranged on the main board through a connecting assembly, and a plurality of positioning holes are formed in the core board; the connecting assembly comprises a positioning rod, a plurality of connecting plates, a plurality of springs, a plurality of first limiting blocks and a plurality of second limiting blocks, the positioning rod is arranged on the main plate, a containing cavity is formed in the positioning rod, the connecting plates are installed in the containing cavity in a sliding mode, the two ends of each connecting plate are connected with the corresponding first limiting block and the corresponding second limiting block respectively, and the springs are arranged in the containing cavity. The two ends of the spring are connected with the connecting plate, and the two sides of the positioning rod are provided with a first sliding groove and a second sliding groove so that the first limiting block and the second limiting block can be installed in a sliding mode. According to the utility model, through the connection assembly, the connection strength between the circuit boards in the central control system is improved.

Description

Technical Field

[0001] This utility model relates to the field of vehicle central control technology, and in particular to a vehicle navigation central control system. Background Technology

[0002] The in-vehicle navigation system mainly consists of a main unit, a display screen, a control keypad (remote control), and an antenna. It enables digital intelligent navigation for field surveys and travel. It features accurate maps, geographic information, and clear routes.

[0003] Currently, Chinese utility model patent application CN211468355U discloses an in-vehicle navigation central control system, relating to the field of in-vehicle central control. The key technical points of this system include a motherboard installed on the vehicle's infotainment system and a core board installed on the motherboard. The core board includes a PCBA board, pin headers fixed on the PCBA board, and several positioning holes on the PCBA board. The motherboard has positioning posts and pin header sockets for inserting the pin headers. The end of the positioning post furthest from the motherboard is fixed in the positioning hole to connect the motherboard and the PCBA board. The technical advantage is that the motherboard and core board are connected and fixed using pin headers and positioning posts, resulting in high connection strength, avoiding the need for additional complex connection structures, and facilitating processing and assembly.

[0004] However, the vibrations generated when the vehicle is in motion are continuous and intense. The multiple circuit boards are connected by pin headers and positioning posts. The connections may loosen under long-term vibration, which may cause the central control system to malfunction. Utility Model Content

[0005] In order to improve the connection strength between circuit boards in the central control system and enhance the shock resistance of the circuit boards, this utility model provides a vehicle navigation central control system.

[0006] This utility model provides a vehicle navigation central control system, including a motherboard and a core board mounted on the motherboard via a connecting component, wherein the core board is provided with a plurality of positioning holes;

[0007] The connecting assembly includes a positioning rod, multiple connecting plates, multiple springs, multiple first limiting blocks, and multiple second limiting blocks. The positioning rod is mounted on the main board and has a receiving cavity inside. The connecting plates are slidably installed in the receiving cavity. Both ends of the connecting plates are connected to the first limiting blocks and the second limiting blocks, respectively. Both ends of the springs are connected to the connecting plates. The first limiting blocks and the second limiting blocks are slidably installed on both sides of the positioning rod by opening first and second sliding grooves.

[0008] By adopting the above technical solution, when installing the core board, the positioning rod is aligned with the positioning hole, and multiple positioning rods are inserted into the corresponding pressing positioning holes. The second limiting blocks on both sides of the positioning rod are pressed, causing the second limiting blocks to move into the second slide groove. The connecting plate then drives the first limiting blocks on both sides to move into the first slide groove. The spring is compressed, and the core board continues to move closer to the motherboard. The second limiting block is released, and the first limiting block abuts against the inner wall of the positioning hole under the spring force until the first limiting block moves outside the positioning hole. The first and second limiting blocks partially move outside the positioning rod under the spring force and stick to the side walls of the motherboard, forming a limiting fixation. The operation is simple and convenient. When the vehicle vibrates during driving, the side walls of the motherboard stick to the first and second limiting blocks respectively, and the positioning rod sticks to the inner wall of the positioning rod, making it difficult for the core board to loosen and improving the connection strength between circuit boards in the central control system.

[0009] Optionally, the first limiting block is disposed on the side of the second limiting block away from the main board, and a guide surface is formed between the end face of the first limiting block away from the second limiting block and the end face away from the spring.

[0010] Optionally, a limiting port is provided on the second limiting block, and a threaded sleeve is rotatably connected to the positioning rod by a thread, and a limiting ring is provided on the threaded sleeve.

[0011] Optionally, the length of the second limiting block along its sliding direction is greater than the length of the second limiting block.

[0012] Optionally, the core board is provided with a header pin, and the motherboard is provided with a header pin socket for embedding the header pin.

[0013] Optionally, the pin headers are respectively arranged on opposite sides of the core board facing the motherboard and are arranged in two rows.

[0014] Optionally, the core board is equipped with an MCU, an audio module, a CPU, a GPS module, a WIFI module, and a Bluetooth module.

[0015] In summary, this utility model has at least one of the following beneficial technical effects:

[0016] 1. When the vehicle vibrates during driving, the side walls of the main board are in contact with the first limit block and the second limit block respectively, and the positioning rod is in contact with the inner wall of the positioning rod, making it difficult for the core board to loosen and improving the connection strength between circuit boards in the central control system. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure;

[0018] Figure 2 This is a schematic diagram of the structure after the motherboard and core board are unfolded;

[0019] Figure 3 This is a schematic diagram of the internal structure of the positioning rod and threaded sleeve.

[0020] Explanation of reference numerals in the attached diagram: 10, Mainboard; 11, Pin header socket; 20, Core board; 21, Positioning hole; 22, Pin header; 23, MCU; 24, Audio module; 25, CPU; 26, GPS module; 27, WIFI module; 28, Bluetooth module; 30, Connecting component; 31, Positioning rod; 311, Receiving cavity; 32, Connecting plate; 33, Spring; 34, First limiting block; 341, Guide surface; 35, Second limiting block; 351, Limiting port; 36, Threaded sleeve; 37, Limiting ring. Detailed Implementation

[0021] The following combination Figures 1-3 The present invention will be described in further detail below.

[0022] This embodiment discloses an in-vehicle navigation central control system: (Refer to...) Figures 1-3 A vehicle navigation central control system includes a motherboard 10 and a core board 20 mounted on the motherboard 10 via a connecting component 30. The core board 20 has a plurality of positioning holes 21.

[0023] The connecting assembly 30 includes a positioning rod 31, multiple connecting plates 32, multiple springs 33, multiple first limiting blocks 34, and multiple second limiting blocks 35. The positioning rod 31 is mounted on the main board 10 and has a receiving cavity 311 inside. The connecting plates 32 are slidably installed in the receiving cavity 311. The two ends of the connecting plates 32 are respectively connected to the first limiting blocks 34 and the second limiting blocks 35. The two ends of the springs 33 are both connected to the connecting plates 32. The first limiting blocks 34 and the second limiting blocks 35 are slidably installed on both sides of the positioning rod 31 by opening a first sliding groove and a second sliding groove.

[0024] When installing the core board 20, align the positioning rods 31 with the positioning holes 21, insert multiple positioning rods 31 into the corresponding pressing positioning holes 21, press the second limiting blocks 35 on both sides of the positioning rods 31, causing the second limiting blocks 35 to move into the second sliding groove, and through the connecting plate 32, drive the first limiting blocks 34 on both sides to move into the first sliding groove, the spring 33 is compressed, and the core board 20 continues to move closer to the main board 10. Release the second limiting blocks 35, and the first limiting blocks 34 abut against the inner wall of the positioning hole 21 under the elastic force of the spring 33. Until the first limiting block 34 moves outside the positioning hole 21, the first limiting block 34 and the second limiting block 35 move partially outside the positioning rod 31 under the elastic force of the spring 33 and stick to the side walls of the main board 10 to form a limiting fixation. The operation is simple and convenient. When the vehicle vibrates during driving, the side walls of the main board 10 stick to the first limiting block 34 and the second limiting block 35 respectively, and the positioning rod 31 sticks to the inner wall of the positioning rod 31, making it difficult for the core board 20 to loosen and improving the connection strength between the circuit boards in the central control system.

[0025] Reference Figures 1-2 The core board 20 is provided with pin headers 22, and the motherboard 10 is provided with pin header sockets 11 for the pin headers 22 to be inserted. The pin headers 22 are respectively arranged in two rows on opposite sides of the core board 20 facing the motherboard 10.

[0026] The pin headers 22 on the core board 20 are plugged into the pin header sockets 11 on the motherboard 10. The core board 20 and the motherboard 10 transmit signals through the pin headers 22 and the pin header sockets 11. Since the pin headers 22 are made of metal and have a dense arrangement, when the core board 20 shakes, multiple pin headers 22 deform to absorb the energy of the shaking of the core board 20, thereby making the connection between the pin headers 22 and the pin header sockets 11 more stable.

[0027] Reference Figure 2 The core board 20 is equipped with an MCU 23, a sound module 24, a CPU 25, a GPS module 26, a WIFI module 27, and a Bluetooth module 28.

[0028] In this embodiment, CPU 25 is a T3 CPU 25 from Zhuhai Allwinner Technology, MCU 23 is an STM32F030C8 from STMicroelectronics, and audio module 24 is a CSC37534 audio chip from Yongfukang Technology; the various modules on the core board 20 cooperate with each other to perform navigation operations.

[0029] Reference Figure 3 The first limiting block 34 is disposed on the side of the second limiting block 35 away from the main board 10, and a guide surface 341 is formed between the end face of the first limiting block 34 away from the second limiting block 35 and the end face away from the spring 33.

[0030] When installing the core board 20, align the positioning rods 31 with the positioning holes 21, insert multiple positioning rods 31 into the corresponding pressing positioning holes 21, and abut the guide surface 341 against the side wall of the positioning hole 21, causing the first limiting block 34 to move into the first sliding groove. Continue moving the core board 20, and the first limiting block 34 abuts against the inner wall of the positioning hole 21 under the elastic force of the spring 33 until the first limiting block 34 moves outside the positioning hole 21. Under the elastic force of the spring 33, the first limiting block 34 and the second limiting block 35 partially move outside the positioning rods 31 and abut against the side walls of the main board 10, forming a limiting fixation. Therefore, the setting of the guide surface 341 allows the operator to fix the core board 20 between the first limiting block 34 and the second limiting block 35 simply by pressing the core board 20, thus reducing the difficulty of installation.

[0031] Reference Figure 3 The second limiting block 35 has a limiting port 351, and the positioning rod 31 is connected to a threaded sleeve 36 by a threaded rotation, and the threaded sleeve 36 is provided with a limiting ring 37.

[0032] After the core board 20 is fixedly set between the first limiting block 34 and the second limiting block 35, the threaded sleeve 36 is rotated to move the limiting ring 37 into the limiting port 351 to form a limit, making it difficult for the second limiting block 35 to shake during daily use. This makes the core board 20 more firmly fixed between the first limiting block 34 and the second limiting block 35, further improving the connection strength between circuit boards in the central control system.

[0033] Reference Figure 3 The length of the second limiting block 35 along its sliding direction is greater than the length of the second limiting block 35.

[0034] When installing the core board 20, align the positioning rods 31 with the positioning holes 21, insert multiple positioning rods 31 into the corresponding pressing positioning holes 21, and abut the guide surface 341 against the side wall of the positioning hole 21, causing the first limiting block 34 to move into the first sliding groove. Continue moving the core board 20, and the first limiting block 34 abuts against the inner wall of the positioning hole 21 under the elastic force of the spring 33 until the second limiting block 35 abuts against the side wall of the core board 20. At this time, the first limiting block 34 just moves outside the positioning hole 21. The first limiting block 34 and the second limiting block 35 partially move outside the positioning rods 31 under the elastic force of the spring 33 and are attached to the side walls of the main board 10 to form a limiting fixation. Therefore, the setting of the length of the second limiting block 35 reduces the probability of the second limiting block 35 moving into the limiting hole, making it convenient for the user to snap the core board 20 into the first limiting block 34 and the second limiting block 35 to form a fixation.

[0035] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A vehicle navigation central control system, characterized in that: It includes a motherboard (10) and a core board (20) mounted on the motherboard (10) via a connecting component (30), wherein the core board (20) has a plurality of positioning holes (21); The connecting assembly (30) includes a positioning rod (31), multiple connecting plates (32), multiple springs (33), multiple first limiting blocks (34), and multiple second limiting blocks (35). The positioning rod (31) is mounted on the main board (10). The positioning rod (31) has a receiving cavity (311). The connecting plates (32) are slidably installed in the receiving cavity (311). The two ends of the connecting plates (32) are respectively connected to the first limiting blocks (34) and the second limiting blocks (35). The two ends of the springs (33) are connected to the connecting plates (32). The first limiting blocks (34) and the second limiting blocks (35) are slidably installed on both sides of the positioning rod (31) by opening the first sliding groove and the second sliding groove.

2. The vehicle navigation central control system according to claim 1, characterized in that: The first limiting block (34) is disposed on the side of the second limiting block (35) away from the main board (10), and a guide surface (341) is formed between the end face of the first limiting block (34) away from the second limiting block (35) and the end face away from the spring (33).

3. The vehicle navigation central control system according to claim 2, characterized in that: The second limiting block (35) has a limiting port (351), and the positioning rod (31) is connected to a threaded sleeve (36) by a threaded rotation. The threaded sleeve (36) is provided with a limiting ring (37).

4. The vehicle navigation central control system according to claim 3, characterized in that: The length of the second limiting block (35) along its sliding direction is greater than the length of the second limiting block (35).

5. The vehicle navigation central control system according to claim 1, characterized in that: The core board (20) is provided with a header pin (22), and the main board (10) is provided with a header pin socket (11) for the header pin (22) to be inserted.

6. The vehicle navigation central control system according to claim 5, characterized in that: The pin headers (22) are respectively arranged on opposite sides of the core board (20) facing the motherboard (10) and are arranged in two rows.

7. The vehicle navigation central control system according to claim 1, characterized in that: The core board (20) is equipped with an MCU (23), a sound module (24), a CPU (25), a GPS module (26), a WIFI module (27), and a Bluetooth module (28).

Images