CN209844936U - Magnetic induction button subassembly and electrical equipment - Google Patents
Magnetic induction button subassembly and electrical equipment Download PDFInfo
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- CN209844936U CN209844936U CN201920575413.0U CN201920575413U CN209844936U CN 209844936 U CN209844936 U CN 209844936U CN 201920575413 U CN201920575413 U CN 201920575413U CN 209844936 U CN209844936 U CN 209844936U
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Abstract
The utility model is suitable for the technical field of electronic devices, and provides a magnetic induction key assembly and electrical equipment, wherein the assembly comprises a panel; a plurality of depressible keys disposed above the panel; the magnetic bodies are respectively arranged at the lower parts of the keys; a 3D magnetic sensor disposed under the panel. The utility model provides a magnetic induction button subassembly, because 3D magnetic sensor's identification range is wider, the recognition accuracy is higher, when arbitrary button is pressed, the magnetic substance under this button moves down, the change that the magnetic field takes place will all be discerned by this 3D magnetic sensor, just so can judge that the button is pressed, simultaneously because each magnetic substance is different to 3D magnetic sensor's distance, there is the difference also by the magnetic strength of 3D magnetic sensor response, just also can discern that a button pressed in a plurality of buttons according to magnetic field intensity, consequently, only need set up a magnetic sensor, the quantity of magnetic sensor has been reduced, simplify mounting process, and the cost is reduced.
Description
Technical Field
The utility model belongs to the technical field of the electron device, especially, relate to a magnetic induction button subassembly and electrical equipment.
Background
The key is a basic control device widely applied to various electrical equipment, and the function principle of the key is that when the key is pressed down, the equipment senses that the key is pressed down through a circuit or an inductor, and then triggers the equipment to execute actions corresponding to the key, such as starting, shutting down, muting and the like.
The button is pressed down through the induction mode, so that the scheme is more popular at present, the scheme can save holes on the panel, the equipment processing procedures are reduced, the cost is reduced, and meanwhile, the button also has the advantage of attractiveness.
Among the prior art, the magnetic inductor used for sensing the key at present is a linear magnetic sensor, and the key and the magnetic sensor need to be arranged in a one-to-one correspondence manner, so that the number of the required magnetic sensors is large, the installation process is complex, and the cost is high.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a magnetic induction button subassembly and electrical equipment aims at solving the magnetic induction scheme of the button in the middle of the prior art and has technical problem with high costs.
The embodiment of the utility model provides a realize like this, a magnetic induction button subassembly, the subassembly includes:
a panel;
a plurality of depressible keys disposed above the panel;
the magnetic bodies are respectively arranged at the lower parts of the keys;
a 3D magnetic sensor disposed under the panel.
Further, the magnetic pole directions of the magnetic bodies are the same.
Still further, the panel is a glass panel.
Further, the magnetic body is a magnet or a magnetite.
Furthermore, the assembly further comprises an upper cover, wherein a plurality of key grooves are formed in the upper cover, and the keys are arranged in the key grooves in a one-to-one correspondence mode.
Furthermore, the bottom of the key is provided with an elastic body which can reset the pressed key.
Furthermore, the bottom of the side edge of the key is provided with an anti-falling convex rib.
The utility model discloses another aspect still provides an electrical equipment, including foretell magnetic induction button subassembly.
The utility model discloses the beneficial effect who reaches: because 3D magnetic sensor's identification scope is wider, the recognition accuracy is higher, when arbitrary button is pressed, the magnetic substance under this button moves downwards, the change that the magnetic field takes place all will be discerned by this 3D magnetic sensor, just so can judge that the button is pressed, simultaneously because the distance that each magnetic substance to 3D magnetic sensor is different, there is also difference by the magnetic strength of 3D magnetic sensor response, just also can discern that the button pressed in a plurality of buttons according to the magnetic field intensity of 3D magnetic sensor response, consequently this magnetic induction button subassembly only need set up a magnetic sensor can, the quantity of magnetic sensor has been reduced, simplify the mounting process, reduce cost.
Drawings
Fig. 1 is a structural diagram of a magnetic induction key assembly according to a first embodiment of the present invention;
FIG. 2 is a schematic diagram of the magnetic induction key assembly of FIG. 1 when a key is pressed;
fig. 3 is a structural diagram of a magnetic induction key assembly according to a second embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The existing magnetic inductor for sensing the keys is a linear magnetic sensor, and the keys and the magnetic sensors need to be arranged in a one-to-one correspondence manner, so that the number of the required magnetic sensors is large, the installation process is complex, and the cost is high. Therefore, the utility model aims to provide an adopt a 3D magnetic sensor to respond to the magnetic induction button subassembly of a plurality of buttons and contain this magnetic induction button subassembly's electrical equipment to reduce magnetic sensor's quantity, simplify mounting process, reduce cost.
Example one
Referring to fig. 1 to 2, a magnetic induction key assembly according to a first embodiment of the present invention is shown, including a panel 11, an upper cover 12 disposed above the panel 11, a plurality of pressable keys 13 disposed on the upper cover 12, a magnetic body 14 disposed at a lower portion of each key 13, and a 3D magnetic sensor 15 disposed below the panel 11, wherein the upper cover 12 is provided with a plurality of key slots 121, and the keys 13 are disposed in the key slots 121 in a one-to-one correspondence manner.
The magnetic poles of the magnetic bodies 14 are in the same direction, for example, the N pole of each magnetic body 14 faces downward and the S pole faces upward, or the S pole of each magnetic body 14 faces downward and the N pole faces upward. This has the advantage of aligning the directions of the magnetic field lines generated by the magnetic bodies 14, ensuring that the magnetic field strength generated by the magnetic bodies 14 is not weakened, and facilitating the 3D magnetic sensor 15 to recognize the magnetic strength generated by the magnetic bodies 14.
In the present embodiment, all the keys 13 are arranged side by side and at intervals, and may also be arranged in multiple rows, in a circular arrangement, and the specific arrangement form is not limited, the 3D magnetic sensor 15 is disposed right below the arrangement center of all the keys 13, and the 3D magnetic sensor 15 is disposed adjacent to the bottom of the panel 11. The key slots 121 are convenient for placing the keys 13, and the arrangement mode of all the key slots 121 can be designed into the required arrangement shape according to requirements. In one embodiment, the magnetic body 14 may be a magnet or a magnet, preferably a magnet such as a bar magnet. In addition, the magnetic body 14 may be fixed to a lower portion of the key 13 by means of bonding, screwing, riveting, clipping, or the like. In addition, the magnetic bodies 14 may be of the same or different specifications, and preferably, the magnetic bodies of the same specification are used so that the 3D magnetic sensor 15 can recognize the magnetic strength generated by each magnetic body 14.
The panel 11 is a glass panel, and the shape and size of the panel are not limited, and can be selected according to the requirements of the equipment in specific implementation. Meanwhile, in order to prevent the magnetic body 14 from rigidly colliding with the panel 11 when the key 13 is pressed, it is possible to secure a fitting gap between the upper cover 12 and the panel 11.
In addition, the bottom of the key 13 is provided with an elastic body 16 for resetting the pressed key, in this embodiment, the elastic body 16 is a spring sleeved on the periphery of the magnetic body 14 and connected between the key 13 and the panel 11. In other embodiments, the elastic body 16 may also be a spring sheet connected between the key 13 and the panel 11, or a silicone sleeve, a spring sheet or a spring connected between the key 13 and the upper cover 12.
In specific implementation, the elastic body 16 may be connected to the key 13 and the panel by bonding, screwing, riveting, clipping, etc.
To sum up, the magnetic induction key assembly in this embodiment, because the identification range of 3D magnetic sensor 15 is wider, the identification precision is higher, when any key 13 is pressed, magnetic substance 14 under this key 13 moves downwards, the change that magnetic field takes place will all be identified by this 3D magnetic sensor 15, just so can judge that the key is pressed, simultaneously because each magnetic substance 14 is different to 3D magnetic sensor 15's distance, there is the difference by the magnetic strength of 3D magnetic sensor 15 response, just also can discern that the key is pressed in a plurality of keys 13 according to the magnetic field intensity of 3D magnetic sensor 15 response, therefore this magnetic induction key assembly only need set up a magnetic sensor can, the quantity of magnetic sensor has been reduced, simplify the mounting process, and cost is reduced.
Example two
Referring to fig. 2, a magnetic induction key assembly according to a second embodiment of the present invention is shown, in which the magnetic induction key assembly according to the second embodiment is different from the magnetic induction key assembly according to the first embodiment in that:
in order to prevent the key 13 from falling off, the bottom of the side edge of the key 13 is provided with a retaining rib 131, and under the supporting action of the elastic body 16, the retaining rib 131 abuts against the bottom of the upper cover 12.
In addition, it should be noted that the implementation principle and some beneficial effects of the apparatus in the embodiment are the same as those of the apparatus in the first embodiment, so that the present embodiment is mentioned, and reference may be made to the application contents in the first embodiment.
EXAMPLE III
The utility model discloses another aspect still provides an electrical equipment, the magnetic induction button subassembly in the middle of the above-mentioned first or second embodiment. Because 3D magnetic sensor's identification scope is wider, the recognition accuracy is higher, when arbitrary button is pressed, the magnetic substance under this button moves downwards, the change that the magnetic field takes place all will be discerned by this 3D magnetic sensor, just so can judge that the button is pressed, simultaneously because the distance that each magnetic substance to 3D magnetic sensor is different, there is also difference by the magnetic strength of 3D magnetic sensor response, just also can discern that the button pressed in a plurality of buttons according to the magnetic field intensity of 3D magnetic sensor response, consequently this magnetic induction button subassembly only need set up a magnetic sensor can, the quantity of magnetic sensor has been reduced, simplify the mounting process, reduce cost.
The electrical equipment comprises but is not limited to products such as household appliances, ovens, dishwashers and the like.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. A magnetic induction key assembly, the assembly comprising:
a panel;
a plurality of depressible keys disposed above the panel;
the magnetic bodies are respectively arranged at the lower parts of the keys;
a 3D magnetic sensor disposed under the panel.
2. The magnetic induction key assembly of claim 1, wherein the magnetic poles of the magnetic bodies are oriented in the same direction.
3. The magnetic induction key assembly of claim 1 or 2, wherein the panel is a glass panel.
4. The magnetic induction key assembly of claim 1 or 2, wherein the magnetic body is a magnet or a magnetite.
5. The magnetic induction key assembly according to claim 1 or 2, further comprising an upper cover, wherein a plurality of key slots are formed in the upper cover, and the keys are correspondingly arranged in the key slots.
6. The magnetic induction key assembly of claim 5, wherein the key bottom is provided with an elastomer for resetting a pressed key.
7. The magnetic induction key assembly of claim 6, wherein the key side bottom is provided with an anti-drop rib.
8. An electrical device comprising the magnetic induction key assembly of any one of claims 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920575413.0U CN209844936U (en) | 2019-04-25 | 2019-04-25 | Magnetic induction button subassembly and electrical equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920575413.0U CN209844936U (en) | 2019-04-25 | 2019-04-25 | Magnetic induction button subassembly and electrical equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209844936U true CN209844936U (en) | 2019-12-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920575413.0U Active CN209844936U (en) | 2019-04-25 | 2019-04-25 | Magnetic induction button subassembly and electrical equipment |
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| Country | Link |
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| CN (1) | CN209844936U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115800989A (en) * | 2023-02-06 | 2023-03-14 | 泉州昆泰芯微电子科技有限公司 | Magnetic induction key state detection method and magnetic knob |
-
2019
- 2019-04-25 CN CN201920575413.0U patent/CN209844936U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115800989A (en) * | 2023-02-06 | 2023-03-14 | 泉州昆泰芯微电子科技有限公司 | Magnetic induction key state detection method and magnetic knob |
| CN115800989B (en) * | 2023-02-06 | 2023-04-07 | 泉州昆泰芯微电子科技有限公司 | Magnetic induction key state detection method and magnetic knob |
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