Knob device and electrical equipment

Abstract

The utility model provides a rotary knob device and electrical equipment, the rotary knob device comprises a base, a shell, a damping mechanism and a magnetic induction assembly, and the shell rotatably sleeves the base; the damping mechanism is arranged between the base and the shell and comprises a base and a cover body, the base is connected with the base, the cover body is fixedly connected with the shell, the cover body is rotatably matched with the base, a sealed cavity is formed between the cover body and the base, and the cavity is filled with damping liquid; the magnetic induction assembly comprises a magnetic piece and a magnetic induction piece, one of the magnetic piece and the magnetic induction piece is fixedly installed on the base, and the other one of the magnetic piece and the magnetic induction piece is fixedly installed on the cover body. According to the rotary knob device, regulation and control are achieved through the magnetic induction technology, the sealed damping mechanism is adopted, the use hand feeling of a user can be improved, dust, oil smoke, water and the like can be prevented from entering a sealed cavity, the service life of the rotary knob is further prolonged, and the rotary knob can be suitable for severe environmental conditions.

Description

Technical Field

[0001] This application belongs to the technical field of electronic devices, and particularly relates to a knob device and an electrical appliance. Background Art

[0002] A magnetic induction switch knob is a device that combines magnetic induction technology and a knob-type switch design. It usually consists of a knob body and an internal magnetic induction sensor. When the knob is rotated, the internal magnetic induction sensor detects the change in the magnetic field, thereby triggering the switch action.

[0003] Currently, some magnetic induction knobs on the market are equipped with a damping mechanism to improve the feel when turning the knob. The damping mechanism usually adopts the form of a bearing, a ball, or a spring piece. However, these damping mechanisms are prone to accumulating dust, oil fume, etc. inside, affecting the feel of turning the knob and even the function of the knob. Utility Model Content

[0004] The embodiments of this application provide a knob device and an electrical appliance, which can solve the technical problem that dirt such as dust and oil fume easily enters the inside of the knob, affecting the service life and feel.

[0005] To achieve the above object, this application provides the following technical solutions:

[0006] A knob device includes:

[0007] A base;

[0008] A housing rotatably sleeved on the base;

[0009] A damping mechanism disposed between the base and the housing, including a base and a cover. The base is connected to the base, the cover is fixedly connected to the housing, the cover is rotatably matched with the base and forms a sealed cavity therebetween, and the cavity is filled with damping fluid;

[0010] A magnetic induction assembly, including a magnetic member and a magnetic induction member, one of the magnetic member and the magnetic induction member is fixedly installed on the base, and the other is fixedly installed on the cover.

[0011] In some embodiments, the cover is formed with an annular groove, the base includes an annular insertion portion, and the annular insertion portion is inserted into the annular groove and is spaced apart from at least part of the inner wall of the annular groove to form the annular cavity.

[0012] In some embodiments, the damping mechanism further includes a first sealing ring and a second sealing ring. The annular groove includes a first circumferential side wall and a second circumferential side wall. The first circumferential side wall surrounds the annular insertion portion, and the annular insertion portion surrounds the second circumferential side wall;

[0013] The first sealing ring is in interference fit between the first circumferential side wall and the annular insertion part, and the second sealing ring is in interference fit between the second circumferential side wall and the annular insertion part to realize the sealing of the cavity.

[0014] In some embodiments, the cavity includes a first annular cavity section and a second annular cavity section, the first annular cavity section is communicated with the second annular cavity section and has different widths.

[0015] In some embodiments, the base includes a bottom wall and a first annular side wall surrounding the bottom wall, the base further includes an annular connecting part connected to the annular insertion part, and the annular connecting part is sleeved on the first annular side wall;

[0016] One of the first annular side wall and the annular connecting part is provided with a first limiting part, and the other is provided with a guiding groove, and the first limiting part is arranged in the guiding groove to limit the rotation of the base relative to the pedestal.

[0017] In some embodiments, the cover body further forms a first accommodating groove, and the first annular side wall surrounds the first accommodating groove;

[0018] The magnetic induction part is fixed in the first accommodating groove, and the magnetic part is arranged on the bottom wall.

[0019] In some embodiments, the number of the magnetic parts is multiple, and the multiple magnetic parts are arranged around the magnetic induction part.

[0020] In some embodiments, the knob device further includes a collision part, the collision part is fixed on the base, the magnetic induction part is fixedly installed on the cover body, the cover body and the base are arranged at intervals, and the base slides relative to the base to make the cover body approach or away from the base;

[0021] When the cover body moves to a first relative position close to the base, the collision part and the magnetic induction part are spaced apart and magnetically attract each other; when the cover body moves to a second relative position away from the base, the collision part collides with the magnetic induction part.

[0022] In some embodiments, a buffer part is arranged between the cover body and the base.

[0023] An electrical appliance device includes:

[0024] A panel;

[0025] The above-mentioned knob device, and the knob device is mounted on the panel through the base.

[0026] The knob device and the electrical equipment provided by the embodiments of the present application use magnetic induction technology to achieve regulation. Since there is no direct contact and friction of mechanical components, it has a long mechanical life and better durability. In addition, a sealed damping mechanism is also adopted, which can not only improve the user's feel when using, but also further extend the service life of the knob because the sealed cavity can prevent dust, oil fume, moisture, etc. from entering, so that the knob can be applied to harsh environmental conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative efforts.

[0028] In order to more fully understand the present application and its beneficial effects, the following will be described in conjunction with the drawings. Among them, the same reference numerals in the following description represent the same parts.

[0029] Figure 1 It is a schematic structural diagram of the knob device provided by the embodiments of the present application.

[0030] Figure 2 is Figure 1 a cross-sectional view of the knob device shown along the A-A direction.

[0031] Figure 3 is Figure 1 an exploded view of the knob device shown.

[0032] Figure 4 It is a schematic structural diagram of the damping mechanism provided by the embodiments of the present application.

[0033] Figure 5 is Figure 4 a cross-sectional view of the damping mechanism shown.

[0034] Figure 6 is Figure 4 an exploded view of the damping mechanism shown.

[0035] Figure 7 It is a schematic structural diagram of the base assembled to the base provided by the embodiments of the present application.

[0036] Figure 8 is Figure 7 a cross-sectional view of the assembled body shown.

[0037] Figure 9 It is a schematic structural diagram of the cover body provided by the embodiments of the present application;

[0038] Figure 10 isFigure 9 Cross-sectional view of the shown cover body.

[0039] Description of the reference numerals:

[0040] 100, Knob device;

[0041] 110, Base; 120, Outer shell; 130, Damping mechanism; 140, Magnetic induction component; 150, Collision part; 160, Buffer part; 170, Anti-slip part;

[0042] 111, Bottom wall; 112, First annular side wall; 113, Shaft body; 131, Base; 132, Cover body; 133, Cavity; 134, First sealing ring; 135, Second sealing ring; 141, Magnetic part; 142, Magnetic induction part;

[0043] 1121, First limiting part; 1311, Annular insertion part; 1312, Annular connection part; 1313, Guide groove; 1314, Second limiting part; 1321, Annular groove; 1322, First accommodation groove; 1323, Second accommodation groove; 1331, First annular cavity section; 1332, Second annular cavity section; 132a, Upper cover; 132b, Lower cover; 132c, Opening; 132d, Groove;

[0044] 1321a, First circumferential side wall; 1321b, Second circumferential side wall. Detailed implementation manners

[0045] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present application.

[0046] The embodiment of the present application provides a knob device, and this knob device can be applied to electrical appliances such as induction cookers and ovens. Exemplarily, please refer to Figures 1-3 , Figure 1 which is a schematic structural diagram of the knob device provided by the embodiment of the present application, Figure 2 is Figure 1 the cross-sectional view of the shown knob device along the A-A direction, Figure 3 is Figure 1 the exploded view of the shown knob device. The knob device 100 includes a base 110, an outer shell 120, a damping mechanism 130 and a magnetic induction component 140.

[0047] Among them, the outer shell 120 is rotatably sleeved on the base; the damping mechanism 130 is arranged between the base 110 and the outer shell 120, and includes a base 131 and a cover 132. The base 131 is connected to the base 110, the cover 132 is fixedly connected to the outer shell 120, the cover 132 is rotatably matched with the base 131 and forms a sealed cavity 133 therebetween, and the cavity 133 is filled with damping liquid; the magnetic induction assembly 140 includes a magnetic part 141 and a magnetic induction part 142, and one of the magnetic part 141 and the magnetic induction part 142 is fixedly installed on the base 110, and the other is fixedly installed on the cover 132.

[0048] Exemplarily, the damping liquid is damping oil. The base 110 can be fixedly installed on the panel of the electrical equipment.

[0049] In the actual application process, when the user rotates the outer shell 120, the outer shell 120 drives the cover 132, so that the cover 132 rotates relative to the base 131. When the cover 132 rotates, it drives the damping liquid in the cavity 133 to move, and the damping liquid generates a circumferential shear force, so that the cover 132 rotates smoothly. In addition, when the cover 132 rotates, it drives the magnetic part 141 or the magnetic induction part 142 arranged thereon, so that the magnetic induction part 142 senses the change of the magnetic field intensity and realizes corresponding regulation by feeding back an electric signal.

[0050] The knob device 100 provided by the embodiment of the present application uses magnetic induction technology to realize regulation. Since there is no direct contact and friction of mechanical components, it has a long mechanical life and better durability; in addition, the damping mechanism 130 as described above is also adopted, which can not only improve the user's use feel, but also further increase the service life of the knob because the sealed cavity 133 can prevent dust, oil fume, moisture, etc. from entering, so that the knob can be applied to harsh environmental conditions.

[0051] Further, please refer to Figures 4-6 , Figure 4 which is a schematic structural diagram of the damping mechanism provided by the embodiment of the present application, Figure 5 is Figure 4 a cross-sectional view of the damping mechanism shown in Figure 6 is Figure 4 an exploded view of the damping mechanism shown in. The cover 132 is formed with an annular groove 1321, and the base 131 includes an annular insertion part 1311. The annular insertion part 1311 is inserted into the annular groove 1321 and is spaced from at least part of the inner wall of the annular groove 1321 to form an annular cavity 133.

[0052] Among them, the cross-section of the cavity 133 in its axial direction is irregular. Exemplarily, the cavity 133 includes a first annular cavity section 1331 and a second annular cavity section 1332. Among them, the annular insertion part 1311 is spaced from the bottom of the annular groove 1321 to form the first annular cavity section 1331 of the cavity 133, and the annular insertion part 1311 is also spaced from the inner circumferential side wall of the annular groove 1321 to form the second annular cavity section 1332 of the cavity 133. The first annular cavity section 1331 and the second annular cavity section 1332 are communicated with each other and have different widths. In some other embodiments, the cavity 133 may further include at least three connected annular cavity sections.

[0053] In some embodiments, such as Figure 6 , the cover 132 may be composed of an upper cover 132a and a lower cover 132b. Along the axial direction of the knob device 100, the upper cover 132a and the lower cover 132b are buckled together to form an annular groove 1321 therebetween. Exemplarily, the upper cover 132a is provided with a groove 132d with an opening 132c facing the lower cover 132b. The groove 132d is annular. The lower cover 132b is disposed at the opening 132c of the groove 132d and covers the outer ring part of the opening 132c. The lower cover 132b and the groove 132d surround each other to form an annular groove 1321. During the actual installation process of the damping mechanism 130, first insert the annular insertion part 1311 of the base 131 into the groove 132d formed by the upper cover 132a through the opening 132c, and then buckle the lower cover 132b with the upper cover 132a to limit the annular insertion part 1311 in the groove 132d. In this way, the annular insertion part 1311 can be prevented from detaching from the annular groove 1321, which is beneficial to improving the structural stability of the damping mechanism 130. Among them, the upper cover 132a and the lower cover 132b are fixedly connected by screws, for example. In addition, one of the upper cover 132a and the lower cover 132b is provided with a positioning protrusion, and the other is provided with a limiting groove. The positioning protrusion and the limiting groove cooperate with each other to limit the upper cover 132a and the lower cover 132b relative to each other.

[0054] In some embodiments, the damping mechanism 130 further includes a first sealing ring 134 and a second sealing ring 135. Refer to Figure 5 , the annular groove 1321 includes a first circumferential side wall 1321a and a second circumferential side wall 1321b. The first circumferential side wall 1321a is arranged around the annular insertion part 1311, and the annular insertion part 1311 is arranged around the second circumferential side wall 1321b; the first sealing ring 134 is in interference fit between the first circumferential side wall 1321a and the annular insertion part 1311, and the second sealing ring 135 is in interference fit between the second circumferential side wall 1321b and the annular insertion part 1311 to realize the sealing of the cavity 133. The materials of the first sealing ring 134 and the second sealing ring 135 are silicone, for example.

[0055] In some embodiments, refer toFigures 7-8 , Figure 7 Schematic structural diagram of the base provided by the embodiment of the present application assembled on the base Figure 8 is Figure 7 A cross-sectional view of the shown assembly. The base 110 includes a bottom wall 111 and a first annular side wall 112 surrounding the bottom wall 111. Refer to Figure 2 , the base 131 further includes an annular connecting portion 1312 connected to the annular insertion portion 1311, and the annular connecting portion 1312 is sleeved on the first annular side wall 112; one of the first annular side wall 112 and the annular connecting portion 1312 is provided with a first limiting portion 1121, and the other is provided with a guiding groove 1313, and the first limiting portion 1121 is arranged in the guiding groove 1313 to limit the rotation of the base 131 relative to the base 110. In this way, when the user rotates the cover body 132 through the housing 120, the base 131 will not be driven to rotate. Optionally, the first annular side wall 112 is provided with the first limiting portion 1121, and the annular connecting portion 1312 is provided with the guiding groove 1313.

[0056] Exemplarily, refer to Figures 9-10 , Figure 9 Schematic structural diagram of the cover body provided by the embodiment of the present application Figure 10 is Figure 9 A cross-sectional view of the shown cover body. The cover body 132 further forms a first accommodating groove 1322, and the first annular side wall 112 is arranged around the first accommodating groove 1322; refer to Figure 2 , the magnetic induction member 142 is fixed in the first accommodating groove 1322, and the magnetic member 141 is arranged on the bottom wall 111. Preferably, the number of the magnetic members 141 is multiple, and the multiple magnetic members 141 are arranged around the magnetic induction member 142, and the polarities of two adjacent magnetic members 141 are set to be opposite. In practical applications, when the user rotates the housing 120, the magnetic induction member 142 is driven to rotate through the cover body 132, and when the magnetic induction member 142 rotates, the change of the magnetic field intensity is sensed, so as to feedback an electric signal to realize the control function of the knob. The multiple magnetic members 141 are, for example, arranged around the first annular side wall 112, and the material of the magnetic member 141 can be a magnet or other magnetic materials.

[0057] Preferably, the annular groove 1321 is arranged around the first accommodating groove 1322, the first accommodating groove 1322 is cylindrical, and the annular groove 1321 is spaced apart from and coaxially arranged with the first accommodating groove 1322.

[0058] In some embodiments, the knob device 100 further includes a collision member 150. The collision member 150 is fixed to the base 110, and the magnetic induction member 142 is fixedly installed on the cover 132. The cover 132 is disposed at an interval from the base 110. The base 131 slides relative to the base 110 to move the cover 132 closer to or farther from the base 110. When the cover 132 moves to the first relative position close to the base 110, the collision member 150 and the magnetic induction member 142 are spaced apart and magnetically attracted to each other. When the cover 132 moves to the second relative position far from the base 110, the collision member 150 collides with the magnetic induction member 142. The material of the collision member 150 can be iron or other metal materials.

[0059] In some embodiments, a buffer sheet can be disposed between the collision member 150 and the magnetic induction member 142 to reduce the noise generated when the two collide.

[0060] Exemplarily, the guiding groove 1313 also has a guiding function, and its guiding direction is the same as the axial direction of the annular connecting portion 1312. The first limiting portion 1121 can slide along the guiding direction of the guiding groove 1313, so that the annular connecting portion 1312 can be slidably sleeved on the first annular side wall 112, and thus the base 131 can slide relative to the base 110. A second limiting portion 1314 is further protruded on the outer wall of the annular connecting portion 1312 facing the first annular side wall 112. The second limiting portion 1314 is disposed opposite to the first limiting portion 1121 and is used to cooperate with the first limiting portion 1121 to limit the stroke of the base 131 sliding away from the base 110 and prevent the base 131 from detaching from the connection with the base 110.

[0061] During the actual application process, the user can press the outer shell 120 to move the cover 132 closer to the base 110, so that the collision member 150 and the magnetic induction member 142 are spaced apart and magnetically attracted to each other. When the user stops pressing the outer shell 120, the collision member 150 and the magnetic induction member 142 are attracted to each other and approach until they collide, and drive the cover 132 to reset to the first relative position close to the base 110. It can be understood that in this way, the knob device 100 has two control methods. The first control method is rotation, and the second control method is pressing. The two different control methods are used to achieve different regulation functions. Exemplarily, in an electrical device, the operation parameters of the electrical device are adjusted by rotating the knob device 100, and the start and stop of the operation are controlled by pressing the knob device 100.

[0062] In a preferred embodiment, refer to Figure 2, the base 110 further includes a shaft body 113 protruding from the bottom wall 111, and the first annular side wall 112 is disposed around the shaft body 113; the cover body 132 is further provided with a second receiving groove 1323, and the first receiving groove 1322 and the second receiving groove 1323 are sequentially arranged in the axial direction of the cover body 132 and the bottoms of the grooves are communicated. The second receiving groove 1323 is disposed on a side of the first receiving groove 1322 away from the bottom wall 111; the shaft body 113 passes through the first receiving groove 1322 and the end is located in the second receiving groove 1323. The collision member 150 is movably received in the second receiving groove 1323 and is fixed to the end of the shaft body 113. The base 131 slides relative to the base 110 to enable the collision member 150 to move in the second receiving groove 1323.

[0063] Preferably, the magnetic induction member 142 is annular and disposed around the shaft body 113.

[0064] In some embodiments, a buffer member 160 is provided between the cover body 132 and the base 110. It can be understood that the buffer member 160 can prevent a loud noise from being generated when the user presses the outer shell 120 and the cover body 132 impacts the base 110, and can also reduce mechanical wear. The material of the buffer member 160 can be a flexible material such as rubber or foam.

[0065] In some embodiments, an anti-slip member 170 is further provided on the lower surface of the base 110 away from the outer shell 120. The anti-slip member 170 is used to increase the friction between the base 110 and the external connection surface and improve the stability of the knob device 100 mounted on the external surface.

[0066] The knob device 100 provided by the embodiment of the present application realizes regulation by using magnetic induction technology. Since there is no direct contact and friction between mechanical components, it has a long mechanical life and better durability. In addition, the damping mechanism 130 as described above is also adopted, which can not only improve the user's operation feel, but also further increase the service life of the knob because the sealed cavity 133 can prevent dust, oil fume, moisture, etc. from entering, so that the knob can be applied to harsh environmental conditions.

[0067] The embodiment of the present application further provides an electrical appliance. The electrical appliance includes a panel and the above-mentioned knob device 100. The knob device 100 is mounted on the panel through the base 110. The electrical appliance can be an induction cooker, a microwave oven, an oven, etc.

[0068] In practical applications, the user can rotate or press the knob device 100 to realize the regulation of the electrical appliance. Exemplarily, the electrical appliance is an induction cooker, and the user presses the knob device 100 to turn on or off the power of the induction cooker and adjusts the gear of the induction cooker by rotating the knob device 100.

[0069] The magnetic induction component 142 of the knob device 100 is connected to the controller of the electrical appliance, for example. When the knob device 100 rotates, the magnetic induction component 142 senses the magnetic field change and feeds back a corresponding electrical signal to the controller, and the controller performs corresponding regulation on the electrical appliance according to the received electrical signal.

[0070] For the electrical appliance provided by the embodiment of the present application, its knob device 100 adopts magnetic induction technology to achieve regulation. Since there is no direct contact and friction of mechanical components, it has a long mechanical life and better durability. In addition, the knob device 100 also adopts the damping mechanism 130 as above, which can not only improve the user's feel of use, but also further extend the service life of the knob because the sealed cavity 133 can prevent dust, oil fume, moisture, etc. from entering, so that the electrical appliance can be applicable to harsh environmental conditions.

[0071] The knob device and the electrical appliance provided by the embodiment of the present application have been introduced in detail above. Specific examples are used in this article to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the method and its core idea of the present application. At the same time, for those skilled in the art, according to the idea of the present application, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present application.

Claims

1. A knob device, characterized in that: include: Base; A housing rotatably mounted on the base; A damping mechanism is disposed between the base and the shell, and comprises a base and a cover, wherein the base is connected to the base, the cover is fixedly connected to the shell, the cover can be rotatably matched with the base to form a sealed cavity between the two, and the cavity is filled with damping fluid; The magnetic induction component comprises a magnetic component and a magnetic induction component. One of the magnetic component and the magnetic induction component is fixedly installed on the base, and the other is fixedly installed on the cover.

2. The knob device according to claim 1, characterized in that: The cover body is formed with an annular groove, and the base includes an annular plug-in portion, which is inserted into the annular groove and spaced apart from at least a portion of the inner wall of the annular groove to form the annular cavity.

3. The knob device according to claim 2, characterized in that: The damping mechanism further comprises a first sealing ring and a second sealing ring, the annular groove comprises a first circumferential side wall and a second circumferential side wall, the first circumferential side wall is arranged around the annular plug-in portion, and the annular plug-in portion is arranged around the second circumferential side wall; The first sealing ring is interference-fitted between the first circumferential side wall and the annular plug-in portion, and the second sealing ring is interference-fitted between the second circumferential side wall and the annular plug-in portion, so as to achieve sealing of the cavity.

4. The knob device according to claim 1, characterized in that: The cavity comprises a first annular cavity segment and a second annular cavity segment, wherein the first annular cavity segment is communicated with the second annular cavity segment and has different widths.

5. The knob device according to claim 3, characterized in that: The base includes a bottom wall and a first annular side wall surrounding the bottom wall, and the base also includes an annular connecting portion connected to the annular plug-in portion, and the annular connecting portion is sleeved on the first annular side wall; One of the first annular side wall and the annular connecting portion is provided with a first limiting portion, and the other is provided with a guiding groove, wherein the first limiting portion is arranged in the guiding groove to limit the rotation of the base relative to the base.

6. The knob device according to claim 5, characterized in that: The cover body is further formed with a first receiving groove, and the first annular side wall is arranged around the first receiving groove; The magnetic induction component is fixed in the first accommodating groove, and the magnetic component is arranged on the bottom wall.

7. The knob device according to claim 6, characterized in that: There are multiple magnetic components, and the multiple magnetic components are arranged around the magnetic induction component.

8. The knob device according to any one of claims 1 to 7, characterized in that: The knob device further comprises a collision member, the collision member is fixed on the base, the magnetic induction member is fixedly mounted on the cover body, the cover body and the base are spaced apart, and the base slides relative to the base to make the cover body approach or move away from the base; When the cover moves to a first relative position close to the base, the collision member and the magnetic induction member are spaced apart and magnetically attracted to each other; when the cover moves to a second relative position away from the base, the collision member collides with the magnetic induction member.

9. The knob device according to claim 8, characterized in that: A buffer is provided between the cover and the base.

10. An electrical device, characterized in that: include: panel; The knob device according to any one of claims 1 to 9, wherein the knob device is mounted on the panel via the base.

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