Novel mounting structure of SD card of vehicle-mounted multimedia system

Abstract

The utility model discloses a novel mounting structure of a vehicle-mounted multimedia system SD card, which comprises a multimedia host panel, a rear support, an SD card component, SD card dustproof flannelette and an SD card grounding elastic sheet, the multimedia host panel is provided with an SD card opening, and the rear support is provided with a positioning rear opening corresponding to the SD card opening. The multimedia host panel is provided with six riveting columns around the circumferential surface of the SD card opening, and the SD card dustproof lint and the SD card grounding elastic sheet are sequentially buckled on the riveting columns, so that the SD card dustproof lint and the SD card grounding elastic sheet are installed around the inner side of the SD card opening, and the effects that the SD card dustproof effect is good, the ESD (electrostatic discharge) performance is excellent, the installation structure is simple and reliable, and the service life is long are achieved. The device has the advantages of simple structure, no abnormal sound in vibration, high production and assembly efficiency and the like, ensures that the SD card assembly is firmly fixed on the multimedia host, and ensures the connection strength and reliability.

Description

Technical Field

[0001] The utility model relates to the technical field of SD cards of in-vehicle multimedia systems, and particularly relates to an installation structure of a new in-vehicle multimedia system SD card. Background Art

[0002] At present, there are some problems in the installation structure of the SD card of the automotive multimedia system, such as complex installation structure, poor dust-proof effect and weak ESD (electrostatic protection) function. Therefore, a structural design method for the SD card part is provided according to the technical requirements of the multimedia touch screen host project of SAIC Volkswagen; by using a dust-proof flannelette with an I-shaped opening, a good dust-proof effect is ensured while the smooth insertion and extraction of the SD card are realized. A hook-shaped grounding spring piece made of beryllium copper meets the ESD (electrostatic protection) requirements in terms of electronics. By fixing the SD card protective cover with screws, various requirements such as simple and reliable installation structure, no abnormal noise during vibration, and high production and assembly efficiency are achieved and can be extended to other project applications.

[0003] Therefore, an installation structure of a new in-vehicle multimedia system SD card needs to be provided. Content of the Utility Model

[0004] Aiming at the problems existing in the above-mentioned prior art, the utility model provides an installation structure of a new in-vehicle multimedia system SD card. The purpose is to ensure the reliable assembly of the dust-proof flannelette and the grounding spring piece through the process of ultrasonic welding; the I-shaped opening on the dust-proof flannelette ensures the smoothness of the SD card entering and exiting while ensuring the dust-proof effect. The hook-shaped grounding spring piece made of beryllium copper has good elasticity, ensuring the reliability of grounding; the PCB board guide grooves and two long-arm buckles on the left and right sides of the panel realize the precise positioning and assembly of the SD card assembly. At the same time, the installation process is simple and reliable. The SD card protective cover is fixed on the rear bracket by a screw connection method, ensuring the strength and reliability of the connection.

[0005] To achieve the above object, the present utility model is realized through the following technical solutions: An installation structure of an SD card for a new in-vehicle multimedia system, including a multimedia host panel, a rear bracket, an SD card assembly, an SD card dust-proof flannel, and an SD card grounding elastic piece. The multimedia host panel is provided with an SD card opening, and the rear bracket is provided with a positioning rear opening corresponding to the SD card opening. The circumferential surface of the multimedia host panel around the SD card opening is provided with six riveting posts. The SD card dust-proof flannel and the SD card grounding elastic piece are sequentially snap-fitted on the riveting posts to install the SD card dust-proof flannel and the SD card grounding elastic piece around the inner side of the SD card opening. On the surface of the multimedia host panel on both sides of the SD card opening, PCB board guide grooves are symmetrically arranged. On the surface of the multimedia host panel between the two PCB board guide grooves, two long-arm snap positions are provided. The SD card assembly is snap-fitted to the SD card assembly through the guiding of the PCB board guide grooves and the long-arm snap positions to limit and install the SD card assembly on the multimedia host panel. The SD card assembly passes through and is installed inside the positioning rear opening. On the symmetrically bent support frame on the surface of the rear side of the positioning rear opening away from the multimedia host panel, a screw through hole one is provided. On the surface of the rear bracket on both sides of the positioning rear opening, mounting holes are symmetrically arranged. The mounting holes are used for fixedly installing an SD card protection cover. The SD card assembly extends into the SD card protection cover and is fixedly installed through screws and the screw through hole one to fixedly install the SD card assembly and the SD card protection cover on the support frame.

[0006] Preferably, the SD card assembly includes a PCB board and an SD card socket. The PCB board and the SD card socket are fixedly installed and electrically connected. The socket end of the SD card socket is aligned with the SD card opening, and the socket end of the SD card socket is fitted and installed with the SD card grounding elastic piece.

[0007] Preferably, two square positioning holes are symmetrically provided in the middle of the PCB board. The square positioning holes are limit-installed with the long-arm snap positions.

[0008] Preferably, two semi-circular side holes are symmetrically arranged on the side of the PCB board away from the SD card opening.

[0009] Preferably, brackets are bent out on both sides of the SD card protection cover. The brackets are provided with screw through holes two matching the mounting holes. A positioning through hole is provided inside the SD card protection cover. The SD card protection cover is fixedly installed on the rear bracket through the screw through holes two to fixedly install the SD card protection cover on the rear bracket. The positioning through hole is aligned with the semi-circular side hole, and the SD card assembly and the SD card protection cover are fixedly installed on the support frame by sequentially installing the positioning through hole, the screw through hole one, and the semi-circular side hole with screws.

[0010] Preferably, an SD card hook-shaped grounding is provided on one side of the SD card grounding elastic piece. The SD card hook-shaped grounding is snap-fitted and installed with the multimedia host panel.

[0011] Preferably, the SD card dust-proof flannel is circumferentially provided with six round holes 1, and the middle is an I-shaped opening. The SD card grounding elastic piece is circumferentially provided with six round holes 2.

[0012] In summary, the present invention provides an installation structure for an SD card of a new in-vehicle multimedia system. The SD card dust-proof flannel and the grounding elastic piece ensure the reliable assembly of the dust-proof flannel and the grounding elastic piece through the process of ultrasonic welding; the I-shaped opening on the dust-proof flannel ensures the smoothness of the SD card's entry and exit while ensuring the dust-proof effect. The hook-shaped grounding elastic piece made of beryllium copper has good elasticity, ensuring the reliability of grounding; the PCB board guide grooves and the two long-arm buckles on the left and right sides of the panel achieve precise positioning and assembly of the SD card assembly. The SD card protection cover fixes the SD card PCB board assembly on the rear bracket through a screw connection method, and at the same time fixes the SD card protection cover on the rear bracket of the multimedia host. Through the above structural design, various requirements such as good dust-proof effect of the SD card, excellent ESD (electrostatic protection) performance, simple and reliable installation structure, no abnormal noise during vibration, and high production and assembly efficiency are achieved. At the same time, it ensures that the SD card assembly is firmly fixed on the multimedia host, ensuring the strength and reliability of the connection. Brief Description of the Drawings

[0013] Figure 1 is an exploded view of the SD card component assembly structure of the present invention;

[0014] Figure 2 is a front view of the position of the in-vehicle multimedia SD card of the present invention;

[0015] Figure 3 is a schematic diagram of the SD card installation on the multimedia host panel of the present invention;

[0016] Figure 4 is the present invention Figure 3 Schematic diagram of the SD card installation on the multimedia host panel at position A in;

[0017] Figure 5 is a schematic diagram of the rear position of the in-vehicle multimedia SD card installation structure of the present invention;

[0018] Figure 6 is the present invention Figure 5 Schematic diagram at position C in;

[0019] Figure 7 is the Figure 6 Cross-sectional structure schematic diagram in the B-B direction of the present invention;

[0020] Figure 8 is an exploded schematic diagram of the SD card assembly of the present invention;

[0021] Figure 9 is a schematic diagram of the SD card protection cover structure of the present invention;

[0022] Figure 10 is a schematic structural diagram of the rear bracket of the present utility model;

[0023] Figure 11 is a schematic structural diagram of the SD card dust-proof flannelette of the present utility model;

[0024] Figure 12 is a schematic structural diagram of the SD card grounding spring piece of the present utility model;

[0025] In the figure: multimedia host panel 1, rear bracket 2, SD card assembly 3, SD card dust-proof flannelette 4, SD card grounding spring piece 5, SD card opening 6, positioning rear opening 7, mounting hole 11, SD card protective cover 12, PCB board 13, SD card holder 14, positioning through hole 15, riveting post 1-1, PCB board guide groove 1-2, long arm buckle 1-3, square positioning hole 4-1, semi-circular side hole 4-2, round hole one 2-1, opening 2-2, round hole two 3-1, SD card hook-shaped grounding 3-2, screw through hole two 5-1, screw through hole one 6-1. Specific embodiments

[0026] The following further describes the present utility model with reference to the accompanying drawings.

[0027] As Figures 1 to 12 shown:

[0028] The utility model relates to an installation structure of an SD card for a new in-vehicle multimedia system, which includes a multimedia host panel 1, a rear bracket 2, an SD card assembly 3, an SD card dust-proof flannelette 4, and an SD card grounding elastic sheet 5. The multimedia host panel 1 is provided with an SD card opening 6, and the rear bracket 2 is provided with a positioning rear opening 7 corresponding to the SD card opening 6. The circumferential surface of the multimedia host panel 1 around the SD card opening 6 is provided with six riveting posts 1-1. The SD card dust-proof flannelette 4 and the SD card grounding elastic sheet 5 are sequentially buckled on the riveting posts 1-1 to install the SD card dust-proof flannelette 4 and the SD card grounding elastic sheet 5 around the inner side of the SD card opening 6. Symmetrically arranged on the surface of the multimedia host panel 1 on both sides of the SD card opening 6 are PCB board guide grooves 1-2, and on the surface of the multimedia host panel 1 between the two PCB board guide grooves 1-2 are provided two long-arm buckles 1-3. The SD card assembly 3 is limited and installed on the multimedia host panel 1 through the guiding of the PCB board guide grooves 1-2 and the buckling of the long-arm buckles 1-3 on the SD card assembly 3. The SD card assembly 3 passes through and is installed inside the positioning rear opening 7. On the surface of the side of the positioning rear opening 7 far from the multimedia host panel 1, symmetrically bent support frames are provided, and the support frames are provided with screw through holes 6-1. Symmetrically arranged on the surface of the rear bracket 2 on both sides of the positioning rear opening 7 are mounting holes 11 for fixedly installing an SD card protection cover 12. The SD card assembly 3 extends into the SD card protection cover 12 and is fixedly installed through screws and the screw through holes 6-1 to fixedly install the SD card assembly 3 and the SD card protection cover 12 on the support frame.

[0029] In at least one embodiment, the SD card assembly 3 includes a PCB board 13 and an SD card socket 14. The PCB board 13 and the SD card socket 14 are fixedly installed and electrically connected. The socket end of the SD card socket 14 is aligned with the SD card opening 6, and the socket end of the SD card socket 14 is fitted and installed with the SD card grounding elastic sheet 5.

[0030] In at least one embodiment, two square positioning holes 4-1 are symmetrically opened in the middle of the PCB board 13, and the square positioning holes 4-1 are limited and installed with the long-arm buckles 1-3.

[0031] In at least one embodiment, two semi-circular side holes 4-2 are symmetrically arranged on the side of the PCB board 13 far from the SD card opening 6.

[0032] In at least one embodiment, brackets are bent out on both sides of the SD card shield 12. The brackets are provided with screw through holes II 5-1 that match the mounting holes 11. A positioning through hole 15 is formed inside the SD card shield 12. The SD card shield 12 is fixedly installed with the brackets through the screw through holes II 5-1 to fixedly install the SD card shield 12 on the rear bracket 2. The positioning through hole 15 is aligned with the semi-circular side hole 4-2, and the positioning through hole 15, the screw through hole I 6-1, and the semi-circular side hole 4-2 are sequentially installed with screws to fixedly install the SD card assembly 3 and the SD card shield 12 on the support frame.

[0033] In at least one embodiment, an SD card hook-shaped ground 3-2 is provided on one side of the SD card ground spring 5, and the SD card hook-shaped ground 3-2 is snap-fitted and installed with the multimedia host panel 1.

[0034] In at least one embodiment, six round holes I 2-1 are circumferentially formed in the SD card dust-proof flannel 4, and an opening 2-2 in the shape of an I is in the middle. Six round holes II 3-1 are circumferentially formed in the SD card ground spring 5.

[0035] Specific assembly method:

[0036] It includes a multimedia host panel 1, a rear bracket 2, an SD card assembly 3, an SD card dust-proof flannel 4, and an SD card grounding spring piece 5. The SD card dust-proof flannel 4 and the SD card grounding spring piece 5 are installed at the SD card opening 6 in sequence and fixed by ultrasonic welding to six riveting posts 1-1 around the SD card opening 6. PCB board guide grooves 1-2 are provided on both sides of the multimedia host panel 1 and two cantilever snap positions 1-3 are provided in the middle to position the SD card assembly 3. The rear bracket 2 is assembled to the multimedia host panel 1, and the SD card protection cover 12 and the SD card assembly 3 are fixed to corresponding positions on the rear bracket 2 by four screws. The function of the riveting posts 1-1 around the SD card opening 6 in the SD card opening 6 part of the installation structure of the multimedia host panel 1 is to fix and assemble the SD card dust-proof flannel 4 and the SD card grounding spring piece 5 by ultrasonic welding; the PCB board guide grooves 1-2 on the left and right sides and the two long-arm snap positions 1-3 realize the positioning and assembly of the SD card assembly 3; the six round holes 2-1 of the SD card dust-proof flannel 4 are used for positioning and installing the SD dust-proof flannel 4, and the middle I-shaped opening 2-2 can reduce the flannel resistance of the SD card insertion and ejection, and at the same time ensure the dust-proof effect. The six round holes 3-1 of the SD card grounding spring piece 5 are used for positioning and installation, and the SD card hook-shaped grounding 3-2 made of beryllium copper with excellent elasticity ensures the reliability of grounding. The two square positioning holes 4-1 of the PCB board in the SD card assembly 3 limit the front and rear positions of the SD card assembly 3, and the two semi-circular side holes 4-2 are used for screwing to fix the PCB board 13. The bent part turned out on the rear bracket 2 and the screw through hole one 6-1 above are used for fixing the PCB board 13 and the SD card protection cover 12. The bent flange screw through hole two 5-1 on the SD card protection cover 12 is used for positioning and reliably fixing the protection cover 12 and the SD card assembly 3.

[0037] The embodiments in the present utility model are only used to illustrate the present utility model and do not constitute a limitation to the scope of the claims. Other substantially equivalent alternatives that can be conceived by those skilled in the art are all within the protection scope of the present utility model.

Claims

1. A new type of SD card installation structure for vehicle multimedia system, characterized in that: The invention comprises a multimedia host panel (1), a rear bracket (2), an SD card assembly (3), an SD card dustproof flannel (4), and an SD card grounding spring (5); the multimedia host panel (1) is provided with an SD card opening (6); the rear bracket (2) is provided with a positioning rear opening (7) corresponding to the SD card opening (6); the multimedia host panel (1) is provided with six riveted columns (1-1) on a circumferential surface around the SD card opening (6); the SD card dustproof flannel (4) and the SD card grounding spring (5) are sequentially buckled on the riveted columns (1-1) so that the SD card dustproof flannel (4) and the SD card grounding spring (5) are installed around the inner side of the SD card opening (6); the surface of the multimedia host panel (1) on both sides of the SD card opening (6) is symmetrically provided with PCB board guide grooves (1-2); the surface of the multimedia host panel (1) between the two PCB board guide grooves (1-2) is provided with a plurality of The SD card assembly (3) is installed on the multimedia host panel (1) by guiding the PCB guide groove (1-2) and locking the SD card assembly (3) with the long arm buckle (1-3), so as to limit the position of the SD card assembly (3). The SD card assembly (3) passes through and is installed inside the positioning rear opening (7). The positioning rear opening (7) is symmetrically bent at the support frame at the side surface away from the multimedia host panel (1). The support frame is provided with a screw through hole (6-1). The surface of the rear bracket (2) on both sides of the positioning rear opening (7) is symmetrically provided with mounting holes (11). The mounting holes (11) are used to fix and install the SD card protection cover (12). The SD card assembly (3) extends into the inside of the SD card protection cover (12) and is fixed and installed by screws and the screw through holes (6-1), so as to fix the SD card assembly (3) and the SD card protection cover (12) on the support frame.

2. According to the novel vehicle multimedia system SD card installation structure of claim 1, it is characterized in that: The SD card assembly (3) comprises a PCB board (13) and an SD card socket (14); the PCB board (13) and the SD card socket (14) are fixedly mounted and electrically connected; the socket end of the SD card socket (14) is aligned with the SD card opening (6), and the socket end of the SD card socket (14) is fitted with the SD card grounding spring (5).

3. The novel vehicle multimedia system SD card installation structure according to claim 2 is characterized in that: Two square positioning holes (4-1) are symmetrically provided in the middle of the PCB board (13), and the square positioning holes (4-1) are limitedly installed with the long arm buckle position (1-3).

4. The novel vehicle multimedia system SD card installation structure according to claim 2 is characterized in that: Two semicircular side holes (4-2) are symmetrically arranged on one side of the PCB board (13) away from the SD card opening (6).

5. The novel vehicle multimedia system SD card installation structure according to claim 4 is characterized in that: The two sides of the SD card protection cover (12) are bent to form a bracket, and the bracket is provided with a second screw through hole (5-1) matching the mounting hole (11). The interior of the SD card protection cover (12) is provided with a positioning through hole (15). The SD card protection cover (12) is fixedly mounted on the bracket through the second screw through hole (5-1), so that the SD card protection cover (12) is fixedly mounted on the rear bracket (2). The positioning through hole (15) is aligned with the semicircular side hole (4-2), and the positioning through hole (15), the first screw through hole (6-1), and the semicircular side hole (4-2) are installed in sequence by screws, so that the SD card assembly (3) and the SD card protection cover (12) are fixedly mounted on the support frame.

6. The novel vehicle multimedia system SD card installation structure according to claim 1 is characterized in that: An SD card hook-shaped grounding (3-2) is provided on one side of the SD card grounding spring (5), and the SD card hook-shaped grounding (3-2) is mounted on the multimedia host panel (1) by snapping.

7. The novel vehicle multimedia system SD card installation structure according to claim 1 is characterized in that: The SD card dustproof flannel (4) has six circular holes (2-1) in the circumferential direction, an I-shaped opening (2-2) in the middle, and the SD card grounding spring (5) has six circular holes (3-1) in the circumferential direction.

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