Magnetic attraction support of automobile data recorder
By setting a magnet mounting slot and conductive foam on the front cover of the dashcam, the ring magnet and PCB circuit board are isolated, solving the electromagnetic interference problem and realizing the dashcam's mobile phone magnetic attraction function and electromagnetic compatibility.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-11
- Publication Date
- 2026-04-14
AI Technical Summary
Existing dashcams fail to meet electromagnetic compatibility standards due to electromagnetic radiation and magnetic field coupling interference, resulting in signal interference problems. They also typically do not have a magnetic charging function for mobile phones to avoid interference.
A magnetic bracket for a dashcam is designed. By setting a magnet mounting slot and conductive foam on the front shell of the main unit, the ring magnet and the PCB circuit board are isolated, reducing electromagnetic radiation leakage. The magnet is fixed by a dispensing groove, which increases reliability.
This technology enables the dashcam to have a magnetic charging function for mobile phones, while effectively reducing electromagnetic interference, meeting radiation requirements, and ensuring normal operation of the device.
Smart Images

Figure CN224117220U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a dashcam holder, and more particularly to a magnetic dashcam holder that can be used as a mobile phone holder. Background Technology
[0002] With the promotion and application of wireless charging technology, the use of magnetic phone holders is becoming increasingly common. Dashcams, as an essential auxiliary tool in cars, are typically installed near the air conditioning vents. This location not only allows for convenient user operation but also does not obstruct the driver's view, making it an ideal choice for a magnetic phone holder. However, the electromagnetic radiation and magnetic field coupling of magnets can interfere with surrounding electronic devices. In the densely populated environment of a dashcam, this interference may cause the dashcam to fail to meet electromagnetic compatibility (EMC) standards, resulting in signal interference and other problems. To reduce electromagnetic interference and meet radiation requirements, current dashcams typically do not include magnetic phone holders to ensure proper operation and EMC. Summary of the Invention
[0003] The technical problem to be solved by this utility model is to provide a magnetic bracket for a dashcam that can be used as a mobile phone holder. The aim is to enable the dashcam to have a magnetic function for holding mobile phones through optimized structural design, reduce electromagnetic interference, and provide a basis for meeting radiation requirements.
[0004] To address this issue, this utility model provides a magnetic mount for a dash cam, comprising: a dash cam main unit, a mount fixing assembly, and a ball joint bracket. The ball joint bracket is mounted on the back of the dash cam main unit via the mount fixing assembly. The dash cam main unit includes a decorative shell, a ring magnet, a front shell, a PCB circuit board, and a back shell. The decorative shell is located on the front of the front shell, and a magnet mounting groove is provided on the side of the front shell near the decorative shell. The ring magnet is mounted between the decorative shell and the front shell through the magnet mounting groove. The PCB circuit board is located on the back of the front shell and between the front shell and the back shell. The magnet mounting groove has a window structure for mounting conductive foam, and the conductive foam is mounted between the ring magnet and the PCB circuit board through the window structure.
[0005] A further improvement of this utility model is that adhesive grooves are provided on both sides of the magnet mounting groove, and the annular magnet is fixedly mounted on the front of the main unit shell through the adhesive grooves.
[0006] A further improvement of this utility model is that multiple parallel dispensing grooves are provided on the same side of the magnet mounting groove, and all of the multiple parallel dispensing grooves are connected to the magnet mounting groove.
[0007] A further improvement of this utility model is that the number of window structures is multiple, and the multiple window structures are distributed at different positions in the magnet mounting slot.
[0008] A further improvement of this utility model is that the main unit faceplate is also provided with a microphone hole, which is located on the bottom side of the magnet mounting slot.
[0009] A further improvement of this utility model is that the main unit casing is also provided with a lampshade, which is disposed on the top side of the magnet mounting slot, and the position of the lampshade corresponds to the position of the indicator light on the PCB circuit board.
[0010] A further improvement of this utility model is that a semi-circular heat sink is provided on the side of the PCB circuit board near the back cover of the host, and a heat sink receiving groove corresponding to the heat sink is provided on the inner side of the back cover of the host, and the heat sink receiving groove is provided with heat dissipation holes.
[0011] A further improvement of this utility model is that the bracket fixing assembly includes a fixing block and a fixing ring, and the ball head structure of the ball head bracket is sleeved in the fixing ring through the fixing block; the fixing block is provided with an external thread, and the fixing ring is provided with an internal thread that matches the external thread.
[0012] A further improvement of this utility model is that the fixing block includes multiple separate elastic fixing ends, and each elastic fixing end is provided with an external thread on its outer side.
[0013] A further improvement of this utility model is that a limiting groove is provided on the back of the main unit back cover, and a limiting protrusion is provided on the side of the fixing block near the main unit back cover, the limiting protrusion matching the limiting groove; a concave fixing hole is provided in the middle of the side of the fixing block near the main unit back cover, and the fixing block is connected to the main unit back cover through a fixing member passing through the fixing hole.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: a magnet mounting groove is provided on the side of the main unit's front cover near the decorative shell, and the annular magnet is disposed between the decorative shell and the main unit's front cover through this magnet mounting groove; the PCB circuit board is disposed on the back of the main unit's front cover and between the main unit's front cover and the main unit's back cover; furthermore, the magnet mounting groove is provided with a window structure for installing conductive foam, and the conductive foam is disposed between the annular magnet and the PCB circuit board through the window structure, providing spatial isolation between the annular magnet and the PCB circuit board, so that electromagnetic shielding can be achieved through the conductive foam, reducing electromagnetic radiation leakage. Therefore, through structural optimization design, this utility model enables the dashcam to have a magnetic attraction function for mobile phones and effectively reduces electromagnetic interference, providing a basis for meeting the radiation requirements of the dashcam's magnetic bracket. Attached Figure Description
[0015] Figure 1 This is an exploded structural diagram of one embodiment of the present invention;
[0016] Figure 2 This is a schematic diagram of the structure of one embodiment of the present utility model;
[0017] Figure 3 This is a schematic diagram of the structure of one embodiment of the present invention in an application scenario;
[0018] Figure 4 This is a schematic diagram illustrating the effect of the magnetic attraction area in one embodiment of this utility model;
[0019] Figure 5 This is a schematic diagram of the structure of one embodiment of the present invention with the decorative shell concealed.
[0020] Figure 6 This is a schematic diagram of the assembly structure of the annular magnet and the main unit shell according to one embodiment of the present invention;
[0021] Figure 7 This is a schematic diagram of the assembly structure of a dashcam host according to an embodiment of the present invention;
[0022] Figure 8 This is a schematic diagram of the assembly structure of a dashcam host according to one embodiment of the present invention from another angle;
[0023] Figure 9 This is a schematic diagram of the structure of the bracket fixing assembly after an explosion, according to one embodiment of the present invention;
[0024] Figure 10 This is a schematic diagram of the assembly structure of one embodiment of the present invention. Detailed Implementation
[0025] In the description of this utility model, if directional descriptions are involved, such as "up," "down," "front," "back," "left," "right," etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, it is only for the convenience of describing this utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. If a certain technical feature is referred to as "set," "fixed," "connected," or "installed" on another technical feature, it can be directly set, fixed, or connected to the other technical feature, or it can be indirectly set, fixed, connected, or installed on the other technical feature.
[0026] In the description of this utility model, the term "several" means one or more; the term "multiple" means two or more; the terms "greater than," "less than," and "exceeding" should be understood as excluding the stated number; and the terms "above," "below," and "within" should be understood as including the stated number. The terms "first," "second," etc., should be understood as being used only to distinguish identical or similar technical feature names, and should not be interpreted as implying / indicating the relative importance of the technical features, the number of technical features, or the sequential relationship between the technical features.
[0027] The preferred embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.
[0028] like Figures 1 to 10 As shown, this embodiment provides a magnetic mount for a dashcam, including: a dashcam main unit 1, a mount fixing assembly 2, and a ball joint bracket 3. The ball joint bracket 3 is mounted on the back of the dashcam main unit 1 via the mount fixing assembly 2. The dashcam main unit 1 includes a decorative shell 11, a ring magnet 12, a main unit front shell 13, a PCB circuit board 14, and a main unit back shell 15. The decorative shell 11 is located on the front of the main unit front shell 13. A magnet mounting groove 131 is provided on the side of the main unit front shell 13 near the decorative shell 11. The ring magnet 12 is located between the decorative shell 11 and the main unit front shell 13 via the magnet mounting groove 131. The PCB circuit board 14 is located on the back of the main unit front shell 13 and is located between the main unit front shell 13 and the main unit back shell 15. The magnet mounting groove 131 is provided with a window structure 132 for mounting conductive foam. The conductive foam is located between the ring magnet 12 and the PCB circuit board 14 via the window structure 132. The ring magnet 12 is preferably a ring-shaped, high-strength magnet.
[0029] In this embodiment, a magnet mounting groove 131 is provided on the side of the main unit cover 13 near the decorative shell 11 (i.e., the front of the main unit cover 13). A window structure 132 for mounting conductive foam is provided in the magnet mounting groove 131 (i.e., the conductive foam is disposed in the window structure 132). Existing conductive foam can be used, and its shape matches the shape of the window structure 132 or the shape of the ring magnet 12. The conductive foam is disposed between the ring magnet 12 and the PCB circuit board 14 through the window structure 132, providing spatial isolation between the ring magnet 12 and the PCB circuit board 14, so that electromagnetic shielding can be achieved through the conductive foam, reducing electromagnetic radiation leakage. Therefore, this embodiment, through structural optimization design, enables the dashcam to have a magnetic attraction function for mobile phones and effectively reduces electromagnetic interference, providing a basis for meeting the radiation requirements of the dashcam magnetic bracket.
[0030] like Figure 6 As shown, in this embodiment, the magnet mounting slot 131 has adhesive grooves 133 on both sides, and the annular magnet 12 is fixedly mounted to the front of the main unit housing 13 through the adhesive grooves 133. The adhesive groove 133 refers to a groove structure for fixing the annular magnet 12 with adhesive. In addition to the annular magnet 12 being installed in the slot through the magnet mounting slot 131, adhesive is used to further increase its reliability to meet the application requirements of the dashcam.
[0031] Preferably, in this embodiment, a plurality of parallel dispensing grooves 133 are provided on the same side of the magnet mounting groove 131, and all of the parallel dispensing grooves 133 are connected to the magnet mounting groove 131. By providing multiple parallel dispensing grooves 133 on the same side, the limited space can be made reasonable use of, and the reliability of dispensing and fixing can be increased.
[0032] like Figure 6 As shown, the number of window structures 132 in this embodiment is multiple, and the multiple window structures 132 are distributed at different positions of the magnet mounting groove 131 in order to meet the electromagnetic shielding effect at different positions as much as possible and reduce the leakage of electromagnetic radiation.
[0033] Preferably, the main unit casing 13 in this embodiment is further provided with a microphone hole 134, which is located on the bottom side of the magnet mounting slot 131. This design makes reasonable use of the position on the bottom side of the magnet mounting slot 131, through a specific structural design, such as... Figure 6 By changing the shape of the microphone hole 134, the possibility of wind blowing directly into the microphone hole 134 can be effectively reduced, thereby reducing the impact of wind noise.
[0034] like Figure 1 ,Figure 5 and Figure 6 As shown, the main unit housing 13 in this embodiment is preferably also provided with a lampshade 135. The lampshade 135 is disposed on the top side of the magnet mounting groove 131, and the position of the lampshade 135 corresponds to the position of the indicator light 141 on the PCB circuit board 14, so as to indicate the working status of the dashcam.
[0035] like Figure 7 and Figure 8 As shown, in this embodiment, a semi-circular heat sink 142 is provided on the side of the PCB circuit board 14 near the back cover 15 of the host. A heat sink receiving groove 151 corresponding to the heat sink 142 is provided on the inner side of the back cover 15, meaning the heat sink 142 is disposed within the heat sink receiving groove 151, and the heat sink receiving groove 151 is provided with heat dissipation holes 152. The semi-circular heat sink 142 is used in this embodiment to make reasonable use of the back space for heat dissipation and to achieve a design that avoids the obstruction of the fixing component 4. Figure 7 The viewpoint is an exploded structure diagram from the front to the back. Figure 8 The viewpoint is an exploded structure diagram looking from the back to the front.
[0036] like Figure 1 , Figure 2 , Figure 9 and Figure 10 As shown, the bracket fixing assembly 2 in this embodiment includes a fixing block 21 and a fixing ring 22. The ball head structure 31 of the ball head bracket 3 is sleeved in the fixing ring 22 through the fixing block 21. The fixing block 21 is provided with an external thread 211, and the fixing ring 22 is provided with an internal thread 221 that matches the external thread 211.
[0037] Preferred, such as Figure 9 As shown, the fixing block 21 in this embodiment includes multiple separate elastic fixing ends 212. These multiple elastic fixing ends 212 better secure the ball head structure 31 of the ball head bracket 3 and provide a certain degree of elastic assembly. The elastic fixing end 212 refers to a fixing structure with elastic properties, such as multiple spring pieces with an inner arc shape and an overall wrapping structure. Each elastic fixing end 212 has an external thread 211 on its outer side for threaded connection with the fixing ring 22.
[0038] Preferred, such as Figure 1 , Figure 9 and Figure 10As shown, in this embodiment, the back of the main unit back cover 15 is provided with a limiting groove 153, and the fixing block 21 is provided with a limiting protrusion 213 on the side near the main unit back cover 15. The limiting protrusion 213 matches the limiting groove 153 to achieve the limiting function between the fixing block 21 and the main unit back cover 15. The fixing block 21 is provided with a recessed fixing hole 214 in the middle of the side near the main unit back cover 15. The fixing block 21 is connected to the main unit back cover 15 through a fixing member 4 passing through the fixing hole 214. The fixing member 4 can be a screw or bolt or other fixing structure. After passing through the fixing block 21, the fixing member 4 is placed in the recessed fixing hole 214. Preferably, the recessed height of the fixing hole 214 is greater than the height of the screw head or bolt head, that is, the fixing member 4 is sunk into the fixing hole 214, thereby avoiding affecting the rotation of the ball head structure 31 of the ball head bracket 3.
[0039] The specific embodiments described above are preferred embodiments of this utility model, and are not intended to limit the specific scope of this utility model. The scope of this utility model includes, but is not limited to, these specific embodiments. All equivalent changes made in accordance with the shape and structure of this utility model are within the protection scope of this utility model.
Claims
1. A magnetic mount for a dashcam, characterized in that, include: The dash cam main unit (1), bracket fixing assembly (2), and ball joint bracket (3) are provided. The ball joint bracket (3) is mounted on the back of the dash cam main unit (1) via the bracket fixing assembly (2). The dash cam main unit (1) includes a decorative shell (11), a ring magnet (12), a main unit front shell (13), a PCB circuit board (14), and a main unit back shell (15). The decorative shell (11) is located on the front of the main unit front shell (13), and a magnet is provided on the side of the main unit front shell (13) near the decorative shell (11). The annular magnet (12) is disposed between the decorative shell (11) and the main unit front shell (13) through the magnet mounting groove (131); the PCB circuit board (14) is disposed on the back of the main unit front shell (13) and between the main unit front shell (13) and the main unit back shell (15); the magnet mounting groove (131) is provided with a window structure (132) for installing conductive foam, and the conductive foam is disposed between the annular magnet (12) and the PCB circuit board (14) through the window structure (132).
2. The magnetic mount for a dashcam according to claim 1, characterized in that, The magnet mounting groove (131) has adhesive grooves (133) on both sides, and the annular magnet (12) is fixedly mounted on the front of the main unit shell (13) through the adhesive grooves (133).
3. The magnetic mount for a dashcam according to claim 2, characterized in that, On the same side of the magnet mounting slot (131), there are multiple parallel dispensing slots (133), and all of the multiple parallel dispensing slots (133) are connected to the magnet mounting slot (131).
4. The magnetic dash cam holder according to any one of claims 1 to 3, characterized in that, The number of window structures (132) is multiple, and the multiple window structures (132) are distributed at different positions in the magnet mounting slot (131).
5. The magnetic mount for a dashcam according to any one of claims 1 to 3, characterized in that, The main unit faceplate (13) is also provided with a microphone hole (134), which is located on the bottom side of the magnet mounting slot (131).
6. The magnetic mount for a dashcam according to any one of claims 1 to 3, characterized in that, The main unit faceplate (13) is also provided with a lampshade (135), which is located on the top side of the magnet mounting slot (131), and the position of the lampshade (135) corresponds to the position of the indicator light (141) on the PCB circuit board (14).
7. The magnetic mount for a dashcam according to any one of claims 1 to 3, characterized in that, The PCB circuit board (14) has a semi-circular heat sink (142) on the side near the host back cover (15). The host back cover (15) has a heat sink receiving groove (151) corresponding to the heat sink (142) on the inner side, and the heat sink receiving groove (151) has heat dissipation holes (152).
8. The magnetic mount for a dashcam according to any one of claims 1 to 3, characterized in that, The bracket fixing assembly (2) includes a fixing block (21) and a fixing ring (22). The ball head structure (31) of the ball head bracket (3) is sleeved in the fixing ring (22) through the fixing block (21). The fixing block (21) is provided with an external thread (211), and the fixing ring (22) is provided with an internal thread (221) that matches the external thread (211).
9. The magnetic mount for a dashcam according to claim 8, characterized in that, The fixing block (21) includes multiple separate elastic fixing ends (212), and each elastic fixing end (212) is provided with an external thread (211) on its outer side.
10. The magnetic mount for a dashcam according to claim 8, characterized in that, The back of the main unit back cover (15) is provided with a limiting groove (153), and the fixing block (21) is provided with a limiting protrusion (213) on the side near the main unit back cover (15). The limiting protrusion (213) matches the limiting groove (153). The fixing block (21) is provided with a concave fixing hole (214) in the middle of the side near the main unit back cover (15). The fixing block (21) is connected to the main unit back cover (15) through a fixing member (4) passing through the fixing hole (214).