Electronic device
By placing a shim on the circuit board to keep the geomagnetic sensor and optical distance sensor away from the high current and ground return path, the problem of the harsh magnetic environment on the motherboard of the terminal device is solved, the accuracy of the sensors and the navigation accuracy are improved, and the user experience is enhanced.
Patent Information
- Application Number
- CN202520046015.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-08
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-01-08
AI Technical Summary
The harsh magnetic environment of the terminal device's motherboard causes a decrease in the accuracy of the geomagnetic sensor compass, affecting navigation accuracy and user experience.
Elevation blocks are installed on the circuit board, and the geomagnetic sensor and optical distance sensor are placed on the elevation blocks, away from high current and ground return paths, to reduce interference from radiated magnetic fields.
It improves the compass accuracy of the geomagnetic sensor and the detection accuracy of the optical distance sensor, thereby enhancing navigation accuracy and user experience, and also contributes to the compactness of the internal structure of electronic devices.
Smart Images

Figure CN223844128U_ABST
Abstract
Description
Technical Field
[0001] This disclosure relates to the field of terminals, and more particularly to an electronic device. Background Technology
[0002] In related technologies, terminal devices are becoming increasingly feature-rich and diverse in form. However, to provide a better user experience, the thickness of terminal devices is trending towards reduction, leading to a tighter layout of components on the motherboard. Due to the limited area of the motherboard, components such as high-current chips, camera modules, and speaker modules are scattered. Some foldable terminal devices also place magnets on the edge of the motherboard, resulting in a poor magnetic environment. At the same time, the high current and ground return current of the motherboard create radiated magnetic field interference, making the motherboard's geomagnetic layout environment extremely harsh. This, in turn, affects the accuracy of the geomagnetic sensor's compass, causing inaccurate navigation and severely impacting the user experience. Utility Model Content
[0003] This disclosure provides an electronic device for reducing the impact of a harsh magnetic environment on a geomagnetic sensor.
[0004] This disclosure provides an electronic device, including:
[0005] A circuit board, the circuit board being used to house the operating elements of the electronic device;
[0006] A shim block, wherein the shim block is disposed on the circuit board and protrudes from the surface of the circuit board;
[0007] A geomagnetic sensor is mounted on the raised block and is electrically connected to the circuit board.
[0008] Optionally, the electronic device further includes a light distance sensor, which is disposed on the raised block and electrically connected to the circuit board.
[0009] Optionally, the shim includes a main body and an extension. The main body is connected to the circuit board and protrudes from the surface of the circuit board. The extension is located at one end of the main body in a first direction and is spaced apart from the circuit board. The geomagnetic sensor is disposed in the extension, and the optical distance sensor is disposed in the main body.
[0010] Optionally, the thickness of the extension is less than the thickness of the main body, and the surfaces of the extension and the main body away from the circuit board are flush.
[0011] Optionally, the extension includes a bent portion extending in a second direction, and the geomagnetic sensor is disposed in the bent portion; wherein the second direction is perpendicular to the first direction.
[0012] Optionally, the shim block has a clearance portion on the side facing the circuit board, the clearance portion being recessed away from the circuit board, and at least a portion of the working element is disposed within the clearance portion.
[0013] Optionally, the raised block is provided with a first connecting part and a second connecting part, the first connecting part being electrically connected to the geomagnetic sensor; the second connecting part is provided on the side of the raised block near the circuit board, the circuit board including a third connecting part corresponding to the second connecting part, and the first connecting part and the second connecting part being electrically connected.
[0014] Optionally, the geomagnetic sensor is welded to the first connecting part;
[0015] The second connecting part and the third connecting part are welded together.
[0016] Optionally, the shim block is provided with a mounting groove, which is located on the side of the shim block away from the circuit board and is recessed towards the circuit board, and the geomagnetic sensor is disposed in the mounting groove.
[0017] Optionally, the circuit board includes an antenna clearance area, and the shim block is disposed in the antenna clearance area.
[0018] Optionally, the working element includes at least one of a high-current chip, a camera module, and a speaker module, and the shim block is offset from the working element.
[0019] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects:
[0020] The electronic device disclosed herein, by placing the geomagnetic sensor on a raised block, is located away from the large current and ground return paths that may be present on the circuit board in a direction perpendicular to the circuit board surface. This reduces the interference of large current and ground return on the radiated magnetic field of the geomagnetic sensor, reduces the impact on the compass accuracy of the geomagnetic sensor, and is beneficial to the pointing accuracy of the geomagnetic sensor during navigation, thus improving the user experience of the electronic device.
[0021] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description
[0022] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.
[0023] Figure 1 The diagram shown is a schematic representation of an embodiment of the electronic device disclosed herein, including the raised block and the geomagnetic sensor.
[0024] Figure 2 The diagram shown is a schematic representation of another embodiment of the raised block and geomagnetic sensor of the electronic device disclosed herein.
[0025] Figure 3 The diagram shown is a schematic diagram of yet another embodiment of the raised block and geomagnetic sensor of the electronic device disclosed herein.
[0026] Figure 4 The diagram shown is a schematic representation of a circuit board of an embodiment of the electronic device disclosed herein.
[0027] Explanation of reference numerals in the attached figures:
[0028] 100. Circuit board; 200. Elevating block; 210. Main body; 220. Extension; 230. Bending part; 240. Clearance part; 300. Geomagnetic sensor; 400. Optical distance sensor; 500. High current chip; 600. Camera module; 700. Speaker module; 800. Antenna clearance area;
[0029] X, the first direction; Y, the second direction. Detailed Implementation
[0030] The technical solutions in the embodiments (or "implementations") of this disclosure will be clearly and completely described herein with reference to the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.
[0031] If this disclosure uses terms relating to directional indications or positional relationships (e.g., up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationships and movements between components in a specific posture (as shown in the accompanying drawings); if the specific posture changes, the directional indications or positional relationships will also change accordingly. Furthermore, terms such as "first" and "second" in this disclosure are used only for descriptive convenience and should not be construed as indicating or implying relative importance.
[0032] This disclosure provides an electronic device. The electronic device of this disclosure will be described in detail below with reference to the accompanying drawings. Unless otherwise specified, the features of the following embodiments and implementations can be combined with each other.
[0033] This disclosure provides an electronic device, see [link to document]. Figure 1-4As shown, the device includes a circuit board 100, a shim block 200, and a geomagnetic sensor 300. The circuit board 100 is used to mount the working elements of the electronic device. The shim block 200 is mounted on the circuit board 100 and protrudes from the surface of the circuit board 100. The geomagnetic sensor 300 is mounted on the shim block 200 and is electrically connected to the circuit board 100.
[0034] By placing the geomagnetic sensor 300 on the raised block 200, in a direction perpendicular to the surface of the circuit board 100, it is far away from the high current and ground return paths set on the circuit board 100. This reduces the interference of high current and ground return on the radiated magnetic field of the geomagnetic sensor 300, reduces the impact on the compass accuracy of the geomagnetic sensor 300, and is beneficial to the pointing accuracy of the geomagnetic sensor 300 during navigation, thus improving the user experience of electronic devices.
[0035] In an optional embodiment, see Figure 1-3 As shown, the electronic device also includes a light distance sensor 400. The light distance sensor 400 is disposed on the shim block 200 and is electrically connected to the circuit board 100. The light distance sensor 400 generates a small current during operation, thus having a minimal impact on the geomagnetic sensor 300. In some embodiments, the shim block 200 is disposed on the side of the circuit board 100 facing the screen of the electronic device, and both the light distance sensor 400 and the geomagnetic sensor 300 are disposed on the side of the shim block 200 facing the screen of the electronic device.
[0036] By reducing the distance between the optical distance sensor 400 and the screen through the above settings, the detection accuracy of the optical distance sensor 400 is improved. Simultaneously, placing both the optical distance sensor 400 and the geomagnetic sensor 300 on the raised block 200 simultaneously enhances both the detection accuracy of the optical distance sensor 400 and the directional accuracy of the geomagnetic sensor 300 during navigation. This contributes to the compactness of the electronic device's internal structure, thereby reducing its size and improving the user experience.
[0037] In an optional embodiment, see Figure 1-3 As shown, the shim block 200 includes a main body 210 and an extension 220. The main body 210 is connected to the circuit board 100 and protrudes from the surface of the circuit board 100. The extension 220 is located at one end of the main body 210 in the first direction X and is spaced apart from the circuit board 100. A geomagnetic sensor 300 is disposed in the extension 220, and a light distance sensor 400 is disposed in the main body 210.
[0038] The geomagnetic sensor 300 and the optical distance sensor 400 are electrically connected to the circuit board 100 via the main body 210. The geomagnetic sensor 300 is disposed in the extension 220, and the optical distance sensor 400 is disposed in the main body 210. During use, the mutual interference between the optical distance sensor 400 and the geomagnetic sensor 300 is reduced, which is beneficial to the detection accuracy of the optical distance sensor 400 and the pointing accuracy of the geomagnetic sensor 300 during navigation.
[0039] In an optional embodiment, see Figure 2 and Figure 3 As shown, the thickness of the extension 220 is less than the thickness of the main body 210. The surfaces of the extension 220 and the main body 210 away from the circuit board 100 are flush. The figure shows that the top surfaces of the extension 220 and the main body 210 are flush.
[0040] The geomagnetic sensor 300 is positioned on the side of the extension 220 away from the circuit board 100. This ensures a safe distance between the geomagnetic sensor 300 and the circuit board 100, reducing interference from high current and ground return current on the radiated magnetic field of the geomagnetic sensor 300. This minimizes the impact on the compass accuracy of the geomagnetic sensor 300 and improves its pointing accuracy during navigation. A gap exists between the extension 220 and the bottom of the circuit board 100, allowing for the avoidance of working components or wiring on the circuit board 100, thus contributing to the compactness of the internal structure of the electronic device.
[0041] In an optional embodiment, see Figure 1-3 As shown, the extension 220 includes a bent portion 230 extending in the second direction Y, and the geomagnetic sensor 300 is disposed in the bent portion 230. Here, Y is perpendicular to the first direction X.
[0042] The above settings help increase the distance between the geomagnetic sensor 300 and the optical distance sensor 400, reduce mutual interference between the optical distance sensor 400 and the geomagnetic sensor 300 during use, and improve the detection accuracy of the optical distance sensor 400 and the pointing accuracy of the geomagnetic sensor 300 during navigation.
[0043] In an optional embodiment, see Figure 3 As shown, the shim block 200 has a clearance portion 240 on the side facing the circuit board 100. The clearance portion 240 is recessed away from the circuit board 100, and at least a portion of the working element is disposed within the clearance portion 240. The clearance portion 240 can be configured according to the shape and size of the working element that needs to be clearanced, as long as the overall strength of the shim block 200 can support the optical distance sensor 400 and the geomagnetic sensor 300. This disclosure does not impose specific limitations on the shape and size of the clearance portion 240.
[0044] By providing the clearance section 240, it is possible to avoid working components or wiring structures on the circuit board 100, which is beneficial to the compactness of the internal structure of the electronic device.
[0045] In optional embodiments, the raised block 200 is provided with a first connecting portion and a second connecting portion (not shown in the figure). The first connecting portion is located on the side of the raised block 200 away from the circuit board 100 and is electrically connected to the geomagnetic sensor 300. In some embodiments, the geomagnetic sensor 300 includes a plurality of pins for electrical connection with the circuit board 100, and the first connecting portion may be an interface corresponding to the pins of the geomagnetic sensor 300. The second connecting portion is located on the side of the raised block 200 close to the circuit board 100, and the first connecting portion and the second connecting portion are electrically connected. In some embodiments, the raised block 200 may have wires inside for electrical connection, and the first connecting portion and the second connecting portion are correspondingly provided and electrically connected. The circuit board 100 includes a third connecting portion (not shown in the figure) corresponding to the second connecting portion. The third connecting portion is correspondingly provided and electrically connected to the second connecting portion.
[0046] By setting a first connecting part and a second connecting part on the shim block 200, the electrical connection between the first connecting part and the second connecting part is pre-realized in the manufacturing process of the shim block 200, thereby simplifying the steps of assembling the circuit board 100, the shim block 200 and the geomagnetic sensor 300 in the subsequent production process of the electronic device, and simplifying the manufacturing process of the electronic device.
[0047] In an optional embodiment, the shim block 200 is provided with a fourth connecting portion and a fifth connecting portion. The fourth connecting portion is located on the side of the shim block 200 away from the circuit board 100, and the fifth connecting portion is located on the side of the shim block 200 closer to the circuit board 100. The fourth sensor and the fifth sensor are electrically connected. The fourth connecting portion is electrically connected to the optical distance sensor. The circuit board 100 is provided with a sixth connecting portion corresponding to the fifth connecting portion.
[0048] In an optional embodiment, the geomagnetic sensor 300 is welded to the first connecting part, which facilitates the fixation and electrical connection between the geomagnetic sensor 300 and the shim block 200.
[0049] In an optional embodiment, the second and third connecting portions are welded together, which facilitates the fixation and electrical connection between the shim block 200 and the circuit board 100.
[0050] In an optional embodiment, the optical distance sensor 400 is welded to the fourth connecting part, and the fifth connecting part and the sixth connecting part are welded together.
[0051] In an optional embodiment, the shim block 200 is provided with a mounting groove (not shown in the figure). The mounting groove is located on the side of the shim block 200 away from the circuit board 100 and is recessed towards the circuit board 100. The geomagnetic sensor 300 is disposed in the mounting groove. With the above arrangement, when assembling the shim block 200 and the geomagnetic sensor 300, it is convenient to pre-position the connection position of the geomagnetic sensor 300 relative to the shim block, simplifying the steps of assembling the circuit board 100 and the geomagnetic sensor 300 in the subsequent production process of the electronic device, and simplifying the manufacturing process of the electronic device.
[0052] In an optional embodiment, see Figure 4 As shown, the circuit board 100 includes an antenna clearance area 800, and a shim block 200 is disposed in the antenna clearance area 800. By setting the shim block 200, the risk of interference between the geomagnetic sensor 300 and the antenna clearance area 800 of the electronic device is reduced. Placing the shim block 200 in the antenna clearance area 800 reduces the space occupied by the shim block 200 in other locations on the circuit board 100, reduces the risk of interference between the geomagnetic sensor 300 and the shim block 200 on the placement of other working components, and contributes to the compactness of the internal structure of the electronic device.
[0053] In an optional embodiment, see Figure 4 As shown, the working elements include at least one of a high-current chip 500, a camera module 600, and a speaker module 700, with the shim block 200 offset from the working elements. This arrangement facilitates full utilization of the space on the circuit board 100 of the electronic device. When designing the placement of the working elements on the circuit board 100, priority can be given to working elements such as the high-current chip 500, camera module 600, and speaker module 700, which have specific placement requirements, thus facilitating the layout of the working elements on the circuit board 100 of the electronic device.
[0054] By placing the geomagnetic sensor 300 on the raised block 200, it is far away from the high current and ground return paths on the circuit board 100, reducing the interference of high current and ground return on the radiated magnetic field of the geomagnetic sensor 300, reducing the impact on the compass accuracy of the geomagnetic sensor 300, which is beneficial to the pointing accuracy of the geomagnetic sensor 300 during navigation and improves the user experience of electronic devices.
[0055] It should be noted that the technical solutions or features described in the above embodiments can be combined or complemented by each other without conflict. The scope of protection of this disclosure is not limited to the precise structures described in the above embodiments and shown in the accompanying drawings; all modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the scope of protection of this disclosure.
Claims
1. An electronic device, characterized in that, include: A circuit board, the circuit board being used to house the operating elements of the electronic device; A shim block, wherein the shim block is disposed on the circuit board and protrudes from the surface of the circuit board; A geomagnetic sensor is mounted on the raised block and is electrically connected to the circuit board.
2. The electronic device according to claim 1, characterized in that, The electronic device also includes a light distance sensor, which is disposed on the raised block and electrically connected to the circuit board.
3. The electronic device according to claim 2, characterized in that, The raised block includes a main body and an extension. The main body is connected to the circuit board and protrudes from the surface of the circuit board. The extension is located at one end of the main body in a first direction and is spaced apart from the circuit board. The geomagnetic sensor is disposed in the extension, and the optical distance sensor is disposed in the main body.
4. The electronic device according to claim 3, characterized in that, The thickness of the extension is less than the thickness of the main body, and the surfaces of the extension and the main body away from the circuit board are flush.
5. The electronic device according to claim 3, characterized in that, The extension includes a bent portion extending in a second direction, and the geomagnetic sensor is disposed in the bent portion; wherein the second direction is perpendicular to the first direction.
6. The electronic device according to claim 1, characterized in that, The shim block has a clearance portion on the side facing the circuit board, the clearance portion is recessed away from the circuit board, and at least a portion of the working element is disposed within the clearance portion.
7. The electronic device according to claim 1, characterized in that, The raised block is provided with a first connecting part and a second connecting part. The first connecting part is electrically connected to the geomagnetic sensor. The second connecting part is provided on the side of the raised block close to the circuit board. The circuit board includes a third connecting part corresponding to the second connecting part. The first connecting part and the second connecting part are electrically connected.
8. The electronic device according to claim 7, characterized in that, The geomagnetic sensor is welded to the first connecting part; The second connecting part and the third connecting part are welded together.
9. The electronic device according to claim 1, characterized in that, The shim block is provided with a mounting groove, which is located on the side of the shim block away from the circuit board and is recessed towards the circuit board. The geomagnetic sensor is disposed in the mounting groove.
10. The electronic device according to claim 1, characterized in that, The circuit board includes an antenna clearance area, and the shim block is disposed in the antenna clearance area.
11. The electronic device according to claim 1, characterized in that, The working element includes at least one of a high-current chip, a camera module, and a speaker module, and the shim block is offset from the working element.