Heating knob device and microwave oven

Abstract

The utility model discloses a heating knob device and a microwave oven, and relates to the technical field of electric appliances. The timing knob comprises a timing knob assembly, a limiting knob and a limiting elastic assembly, the timing knob assembly comprises a timing rotary switch, and a rotation stopping clamping hook is arranged on the outer side face of the timing rotary switch. The limiting knob is arranged on the outer edge of the timing rotary switch in a sleeving mode and movably connected with a panel of the microwave oven, and a first through hole is formed in the limiting knob. The limiting elastic assembly is embedded in the first through hole and comprises an elastic clamping hook unit arranged in the radial direction of the timing rotary switch. The elastic clamping hook unit is connected with a limiting groove formed in the panel in a clamped mode when no external pressure exists, and the rotation stopping clamping hook is limited so that the heating duration can be limited. Due to the fact that the heating duration is uncertain, when a specific user who cannot accurately distinguish the knob duration heats food, the timing rotary switch is screwed until the timing rotary switch cannot rotate, the hand is released, and then the food can be cooked normally. Therefore, the food heating difficulty is reduced.

Description

Technical Field

[0001] This utility model relates to the field of electrical technology, and in particular to a heating knob device and a microwave oven. Background Technology

[0002] A microwave oven is a cooking appliance that heats food using microwaves. It is quite common in homes, and its convenience and efficiency greatly improve the user experience. Currently, most microwave ovens allow users to adjust the heating time by turning on the corresponding heating power (or heating level).

[0003] However, some special users, such as the elderly, the disabled, and children, are unsure of the heating time and cannot accurately distinguish the duration of the knob. They are unable to turn the knob to the appropriate heating time during microwave oven use, which increases the difficulty of heating food. Utility Model Content

[0004] This invention addresses the problem that heating food in a microwave oven is difficult for certain users who cannot accurately distinguish the duration of the knob due to uncertain heating times. The invention provides a heating knob device and a microwave oven that overcome or at least partially solve the aforementioned problems.

[0005] Based on a first aspect of the present invention, a heating knob device is provided, the heating knob device comprising:

[0006] A timer knob assembly, comprising a timer rotary switch, wherein an anti-rotation hook is provided on the outer side of the timer rotary switch;

[0007] A limiting knob is sleeved on the outer surface of the timer rotary switch and is movably connected to the panel of the microwave oven. The limiting knob has a first through hole.

[0008] A limiting elastic component is embedded in the first through hole, wherein the limiting elastic component includes an elastic hook unit disposed radially along the timing rotary switch; and...

[0009] When no external pressure is applied, the elastic hook unit engages with the limiting groove in the panel and limits the anti-rotation hook to restrict the heating time of the timing knob assembly.

[0010] In one optional utility model, the limiting elastic component further includes a button, which is embedded in the first through hole along the axial direction of the limiting knob and abuts against the elastic hook unit, so as to generate external pressure on the elastic hook unit by pressing the button.

[0011] In one optional utility model, the elastic hook unit includes a first elastic hook and a second elastic hook, wherein the first elastic hook and the second elastic hook are respectively rotatably connected to the limiting knob; wherein,

[0012] The first elastic hook abuts against the button and extends radially inward along the limiting knob to the outer edge of the timer rotary switch, thereby limiting the rotation of the anti-rotation hook.

[0013] The second elastic hook abuts against the button and extends radially outward along the limiting knob to reach the inner edge of the panel and engage with the limiting groove.

[0014] An optional utility model embodiment, wherein the first elastic hook comprises:

[0015] The first elastic arm abuts against the button and the panel respectively;

[0016] A first hook portion is angled to the first elastic arm and extends towards the timer rotary switch; wherein...

[0017] The connection between the first elastic arm and the first hook is rotatably connected to the limiting knob. When the button is pressed, the first elastic arm deforms under the pressing force, causing the first hook to rotate away from the timer switch, thereby releasing the restriction on the anti-rotation hook.

[0018] In one optional utility model, the limiting elastic component further includes two fixing pins, one of which rotatably connects the first elastic hook to the limiting knob, and the other fixing pin rotatably connects the second elastic hook to the limiting knob.

[0019] An optional utility model includes a first deformation cavity inside the first elastic arm, which deforms under pressure.

[0020] In one optional utility model, the button has an extension cavity, and a portion of the first elastic arm extends into the extension cavity.

[0021] An optional utility model embodiment, wherein the second resilient hook comprises:

[0022] The second elastic arm abuts against the button and the panel respectively;

[0023] The second hook portion is angled to the second elastic arm and extends towards the panel; wherein...

[0024] The connection between the second elastic arm and the second hook is rotatably connected to the limiting knob. When the button is pressed, the second elastic arm deforms under the pressure, causing the second hook to rotate away from the panel, thereby releasing the engagement with the limiting groove.

[0025] One optional utility model involves a second deformation cavity formed inside the second elastic arm, which deforms under pressure.

[0026] An optional utility model includes a button with an extension cavity, and a portion of the second elastic arm extends into the extension cavity.

[0027] In one optional utility model, the limiting knob has a first mounting hole and a second mounting hole, the first mounting hole and the second mounting hole respectively communicating with the first through hole; wherein,

[0028] The first mounting hole has a first opening facing the timer rotary switch, and the second mounting hole has a second opening facing the limiting groove. When there is no external pressure, one end of the elastic hook unit extends outward from the first opening to form a rotation limit on the anti-rotation hook, and the other end of the elastic hook unit extends outward from the second opening to form a snap-fit ​​with the limiting groove.

[0029] Based on a second aspect of this utility model, a microwave oven is also provided, the microwave oven including the heating knob device as described in any of the above utility model contents.

[0030] Compared with the prior art, this utility model includes a timer knob assembly, a limit knob, and a limit elastic component. The timer knob assembly includes a timer rotary switch, and an anti-rotation hook is provided on the outer surface of the timer rotary switch. The limit knob is sleeved on the outer surface of the timer rotary switch and is movably connected to the microwave oven panel. The limit knob has a first through hole. The limit elastic component is embedded in the first through hole and includes an elastic hook unit arranged radially along the timer rotary switch. Furthermore, when no external pressure is applied, the elastic hook unit engages with a limit groove in the panel and limits the anti-rotation hook, thereby limiting the heating time of the timer knob assembly. Thus, a normal user can first press the limit elastic component to release the engagement between the elastic hook unit and the limit groove, thereby manually rotating the limit knob to the desired heating time and releasing the pressure on the limit elastic component. At this point, the limiting elastic component engages with the limiting groove corresponding to the heating time. Therefore, for users who cannot accurately distinguish the heating time due to uncertainty about the knob's setting, heating food is possible by simply turning the timer switch until it can no longer be turned and then releasing it. This significantly reduces the difficulty for users who cannot accurately distinguish the heating time due to uncertainty about the knob's setting, and helps improve their self-care ability.

[0031] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more obvious and understandable, specific embodiments of this utility model are given below. Attached Figure Description

[0032] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings.

[0033] In the attached diagram:

[0034] Figure 1 This is a three-dimensional structural diagram of a heating knob device assembled on a microwave oven according to an embodiment of the present invention;

[0035] Figure 2 This is an exploded structural diagram of a heating knob device provided in an embodiment of this utility model;

[0036] Figure 3This is a cross-sectional view of a heating knob device provided in an embodiment of the present invention;

[0037] Figure 4 This is a schematic diagram of the first cross-section of a heating knob device provided in an embodiment of the present invention;

[0038] Figure 5 This is a three-dimensional structural diagram of a timing rotary switch provided in an embodiment of the present utility model;

[0039] Figure 6 This is a three-dimensional structural diagram of a limiting knob provided in an embodiment of this utility model;

[0040] Figure 7 This is a schematic diagram of the second cross-section of a heating knob device provided in an embodiment of the present invention;

[0041] Figure 8 yes Figure 7 Enlarged structural diagram at point A;

[0042] Figure 9 This is a schematic diagram of the third cross-section of a heating knob device provided in an embodiment of the present invention;

[0043] Figure 10 This is a schematic diagram of the fourth cross-section of a heating knob device provided in an embodiment of the present invention;

[0044] Reference numerals: 1. Timer rotary switch; 11. Anti-rotation hook; 2. Limit knob; 201. First through hole; 202. First mounting hole; 203. Second mounting hole; 3. Limit elastic component; 31. Elastic hook unit; 311. First elastic hook; 3111. First elastic arm; 311101. First deformation cavity; 3112. First hook part; 312. Second elastic hook; 3121. Second elastic arm; 3122. Second hook part; 312101. Second deformation cavity; 32. Button; 3201. Extension cavity; 33. Fixing pin; 4. Panel; 401. Limit groove. Detailed Implementation

[0045] Exemplary embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0046] A microwave oven is a cooking appliance that heats food using microwaves. It is quite common in homes, and its convenience and efficiency greatly improve the user experience. Currently, most microwave ovens allow users to adjust the heating time by turning on the corresponding heating power (or heating level).

[0047] However, some special users, such as the elderly, the disabled, and children, are unsure of the heating time and cannot accurately distinguish the duration of the knob. They are unable to turn the knob to the appropriate heating time during microwave oven use, which increases the difficulty of heating food.

[0048] Based on the aforementioned technical problems, this utility model embodiment is proposed. This utility model embodiment may include a timer knob assembly, a limiting knob 2, and a limiting elastic component 3. The timer knob assembly includes a timer rotary switch 1, and an anti-rotation hook 11 is provided on the outer surface of the timer rotary switch 1. The limiting knob 2 is sleeved on the outer surface of the timer rotary switch 1 and is movably connected to the microwave oven panel 4. The limiting knob 2 has a first through hole 201. The limiting elastic component 3 is embedded in the first through hole 201. The limiting elastic component 3 includes an elastic hook unit 31 arranged radially along the timer rotary switch 1. Furthermore, when no external pressure is applied, the elastic hook unit 31 engages with a limiting groove 401 in the panel 4 and limits the anti-rotation hook 11, thereby limiting the heating time of the timer knob assembly. Therefore, a normal user can first press the limiting elastic component 3, causing the elastic hook unit 31 to disengage from the limiting groove 401, and then manually rotate the limiting knob 2 to the desired heating time, releasing the pressure on the limiting elastic component 3. At this time, the limiting elastic component 3 engages with the limiting groove 401 corresponding to the heating time. Thus, for users who cannot accurately distinguish the heating time due to uncertainty about the knob's setting, heating food is much easier; they can simply turn the timer switch 1 until it can no longer be turned and then release it to cook the food normally. This significantly reduces the difficulty for users who cannot accurately distinguish the heating time due to uncertainty about the knob's setting, helping to improve their self-care ability.

[0049] Reference Figure 1-10This utility model provides a heating knob device, which may include a timer knob assembly, a limiting knob 2, and a limiting elastic component 3. The timer knob assembly includes a timer rotary switch 1, and an anti-rotation hook 11 is provided on the outer surface of the timer rotary switch 1. The limiting knob 2 is sleeved on the outer surface of the timer rotary switch 1 and is movably connected to the microwave oven panel 4. The limiting knob 2 has a first through hole 201. The limiting elastic component 3 is embedded in the first through hole 201, and includes an elastic hook unit 31 arranged radially along the timer rotary switch 1. When no external pressure is applied, the elastic hook unit 31 engages with a limiting groove 401 in the panel 4 and limits the anti-rotation hook 11, thereby limiting the heating time of the timer knob assembly.

[0050] In this embodiment of the invention, the heating knob device may include a timing knob assembly, a limiting knob 2, and a limiting elastic component 3. The timing knob assembly is used for timing the heating of the microwave oven. The timing knob assembly includes a timing rotary switch 1. For example, the timing knob assembly may be embedded in the microwave oven's panel 4. Correspondingly, the duration markings on the panel 4 may be circumferentially distributed and concentrically arranged with the timing rotary switch 1. That is, the duration markings are distributed at equal angles around the center of the timing rotary switch 1. Thus, the heating time of the microwave oven can be determined by rotating the timing rotary switch 1 to the corresponding duration marking. An anti-rotation hook 11 is provided on the outer surface of the timing rotary switch 1. That is, the anti-rotation hook 11 is distributed radially along the timing rotary switch 1.

[0051] The limiting knob 2 is sleeved on the outer surface of the timing rotary switch 1 and is movably connected to the panel 4. For example, the limiting knob 2 can rotate on the panel 4. In other words, the limiting knob 2 and the timing rotary switch 1 can be concentrically arranged and can rotate separately. The limiting knob 2 has a first through hole 201, which is eccentrically arranged.

[0052] The limiting elastic component 3 is embedded in the first through hole 201, and the limiting elastic component 3 may include an elastic hook unit 31 arranged radially along the timing rotary switch 1. Correspondingly, a plurality of limiting grooves 401 are formed in the area of ​​the panel 4 near the limiting knob 2, wherein the limiting grooves 401 are adapted to the position of the time indicator, and the plurality of limiting grooves 401 are distributed at equal angles around the center of the limiting rotation. Under no external pressure, the elastic hook unit 31 extends radially along the limiting knob 2 to the inner and outer sides of the limiting knob 2. The elastic hook unit 31 engages with the limiting groove 401 on the radially outer side of the limiting knob 2, thereby locking the limiting knob 2 and preventing it from rotating.

[0053] The elastic latch unit 31 limits the rotation of the anti-rotation latch 11 on the radially inner side of the limiting knob 2. This limitation can be understood as restricting the rotation angle range of the anti-rotation latch 11. For example, when the user rotates the timer rotary switch 1, when the anti-rotation latch 11 abuts against the elastic latch unit 31, the abutting force of the elastic latch unit 31 on the anti-rotation latch 11 prevents the timer rotary switch 1 from continuing to rotate in the same direction.

[0054] Under external pressure, the two ends of the elastic hook unit 31 move closer to each other radially along the limiting knob 2, i.e., the elastic hook unit 31 is embedded in the limiting knob 2. At this time, the elastic hook unit 31 is unlocked from the limiting groove 401 on the radially outer side of the limiting knob 2, and the limiting knob 2 can rotate arbitrarily. Correspondingly, the elastic hook unit 31 releases the limiting hook 11 on the radially inner side of the limiting knob 2, thereby allowing the timer rotary switch 1 to rotate arbitrarily to the corresponding heating time.

[0055] During the use of the heating knob device, a normal user can first press the limiting elastic component 3 to apply external pressure to the elastic hook unit 31, causing the elastic hook unit 31 to disengage from the limiting groove 401. This allows the user to manually rotate the limiting knob 2 to the desired heating time and release the pressure on the limiting elastic component 3. At this point, the limiting elastic component 3 engages with the limiting groove 401 corresponding to the heating time. Therefore, for users who cannot accurately distinguish the heating time due to uncertainty about the knob's setting, heating food is simple: turn the timer switch 1 until it cannot be turned further and then release it to cook the food normally. This significantly reduces the difficulty for users who cannot accurately distinguish the heating time due to uncertainty about the knob's setting, and helps improve their self-care ability.

[0056] An optional embodiment of the utility model, referring to... Figure 1 , Figure 2 , Figure 3 , Figure 7 , Figure 8 , Figure 9 as well as Figure 10 As shown, the limiting elastic component 3 also includes a button 32, which is embedded in the first through hole 201 along the axial direction of the limiting knob 2 and abuts against the elastic hook unit 31, so that pressing the button 32 generates external pressure on the elastic hook unit 31.

[0057] In this embodiment of the present invention, the limiting elastic component 3 further includes a button 32, which is embedded in the first through hole 201 along the axial direction of the limiting knob 2. For example, a portion of the button 32 extends outward from the first through hole 201, forming a protrusion protruding from the upper surface of the limiting knob 2, thereby facilitating the user to press the button 32 through the protruding button 32. The end of the button 32 located in the first through hole 201 abuts against the elastic hook unit 31. The portion of the elastic hook unit 31 away from the button 32 can abut against the panel 4. Thus, when the user presses the button 32, external pressure is generated on the elastic hook unit 31 through the abutting relationship between the button 32 and the elastic hook unit 31.

[0058] In some embodiments, when external pressure is applied to the elastic hook unit 31 by the button 32, the elastic hook unit 31 undergoes elastic deformation under the pressure of the button 32 and the panel 4. The two ends of the elastic hook unit 31 move closer to each other radially along the limiting knob 2, i.e., the elastic hook unit 31 is embedded in the limiting knob 2. At this time, the elastic hook unit 31 is unlocked from the limiting groove 401 on the radially outer side of the limiting knob 2, allowing the limiting knob 2 to rotate freely. Correspondingly, the elastic hook unit 31 releases the limiting hook 11 on the radially inner side of the limiting knob 2, thereby allowing the timer rotary switch 1 to rotate freely to the corresponding heating time.

[0059] In other embodiments, when the pressure on the button 32 is released, the elastic latch unit 31 elastically recovers, with both ends of the elastic latch unit 31 extending beyond the limiting knob 2. The elastic latch unit 31, on the radially inner side of the limiting knob 2, limits the rotation of the anti-rotation latch 11. This limitation can be understood as restricting the rotation angle range of the anti-rotation latch 11. For example, when the user rotates the timer rotary switch 1, when the anti-rotation latch 11 abuts against the elastic latch unit 31, the abutting force of the elastic latch unit 31 on the anti-rotation latch 11 prevents the timer rotary switch 1 from continuing to rotate in the same direction.

[0060] An optional embodiment of the utility model, referring to... Figure 2 , Figure 3 as well as Figure 4 As shown, the heating knob device may include a timer knob assembly, a limiting knob 2, and a limiting elastic component 3. The timer knob assembly includes a timer rotary switch 1, with an anti-rotation hook 11 on its outer surface. The limiting knob 2 is sleeved on the outer surface of the timer rotary switch 1 and is movably connected to the microwave oven panel 4. The limiting knob 2 has a first through hole 201. The limiting elastic component 3 is embedded in the first through hole 201 and includes an elastic hook unit 31 arranged radially along the timer rotary switch 1. The elastic hook unit 31 includes a first elastic hook 311 and a second elastic hook 312, which are rotatably connected to the limiting knob 2. The first elastic hook 311 abuts against the button 32 and extends radially inward along the limiting knob 2 to the outer edge of the timer rotary switch 1, thus limiting the heating time of the timer knob assembly by restricting the rotation of the anti-rotation hook 11. The second elastic hook 312 abuts against the button 32 and extends radially outward along the limiting knob 2 to the inner edge of the panel 4, where it engages with the limiting groove 401.

[0061] In this embodiment of the invention, the heating knob device may include a timing knob assembly, a limiting knob 2, and a limiting elastic component 3. The timing knob assembly is used for timing the heating of the microwave oven. The timing knob assembly includes a timing rotary switch 1. For example, the timing knob assembly may be embedded in the microwave oven's panel 4. Correspondingly, the duration markings on the panel 4 may be circumferentially distributed and concentrically arranged with the timing rotary switch 1. That is, the duration markings are distributed at equal angles around the center of the timing rotary switch 1. Thus, the heating time of the microwave oven can be determined by rotating the timing rotary switch 1 to the corresponding duration marking. An anti-rotation hook 11 is provided on the outer surface of the timing rotary switch 1. That is, the anti-rotation hook 11 is distributed radially along the timing rotary switch 1.

[0062] The limiting knob 2 is sleeved on the outer surface of the timing rotary switch 1 and is movably connected to the panel 4. For example, the limiting knob 2 can rotate on the panel 4. In other words, the limiting knob 2 and the timing rotary switch 1 can be concentrically arranged and can rotate separately. The limiting knob 2 has a first through hole 201, which is eccentrically arranged.

[0063] The limiting elastic component 3 is embedded in the first through hole 201, and the limiting elastic component 3 may include an elastic hook unit 31 arranged radially along the timing rotary switch 1. Correspondingly, a plurality of limiting grooves 401 are formed in the area of ​​the panel 4 near the limiting knob 2, wherein the limiting grooves 401 are adapted to the position of the time indicator, and the plurality of limiting grooves 401 are distributed at equal angles around the center of the limiting rotation. Under no external pressure, the elastic hook unit 31 extends radially along the limiting knob 2 to the inner and outer sides of the limiting knob 2. The elastic hook unit 31 engages with the limiting groove 401 on the radially outer side of the limiting knob 2, thereby locking the limiting knob 2 and preventing it from rotating.

[0064] The elastic latch unit 31 limits the rotation of the anti-rotation latch 11 on the radially inner side of the limiting knob 2. This limitation can be understood as restricting the rotation angle range of the anti-rotation latch 11. For example, when the user rotates the timer rotary switch 1, when the anti-rotation latch 11 abuts against the elastic latch unit 31, the abutting force of the elastic latch unit 31 on the anti-rotation latch 11 prevents the timer rotary switch 1 from continuing to rotate in the same direction.

[0065] Under external pressure, the two ends of the elastic hook unit 31 move closer to each other radially along the limiting knob 2, i.e., the elastic hook unit 31 is embedded in the limiting knob 2. At this time, the elastic hook unit 31 is unlocked from the limiting groove 401 on the radially outer side of the limiting knob 2, and the limiting knob 2 can rotate arbitrarily. Correspondingly, the elastic hook unit 31 releases the limiting hook 11 on the radially inner side of the limiting knob 2, thereby allowing the timer rotary switch 1 to rotate arbitrarily to the corresponding heating time.

[0066] Specifically, the elastic hook unit 31 may include a first elastic hook 311 and a second elastic hook 312, which are spaced apart along the radial direction of the limiting knob 2. The first elastic hook 311 and the second elastic hook 312 are rotatably connected to the limiting knob 2. The limiting elastic component 3 may also include two fixing pins 33. The first elastic hook 311 and the limiting knob 2 can be rotatably connected via one of the fixing pins 33, and the second elastic hook 312 and the limiting knob 2 can also be rotatably connected via the other fixing pin 33. The first elastic hook 311 abuts against the button 32, and the second elastic hook 312 abuts against the button 32.

[0067] When no external pressure is applied, the button 32 is positioned within the first through hole 201 by the abutting action of the first elastic hook 311 and the second elastic hook 312. The button 32 may also have a protrusion, or the limiting knob 2 may have a connecting groove. The shape fit between the protrusion and the connecting groove limits the axial travel of the button 32. Simultaneously, under the abutting action of the button 32 and the panel 4, the end of the first elastic hook 311 away from the second elastic hook 312 extends radially inward towards the limiting knob 2, thereby limiting the rotation angle range of the timer rotary switch 1. Under the abutting action of the button 32 and the panel 4, the end of the second elastic hook 312 away from the first elastic hook 311 extends radially outward towards the limiting knob 2, thus extending beyond the limiting knob 2 and engaging with the limiting groove 401 on the panel 4.

[0068] When the user presses down on the button 32, the abutting force of the button 32 on the first elastic hook 311 and the abutting force of the button 32 on the second elastic hook 312 are increased. As a result, the first elastic hook 311 deforms towards the panel 4 under the abutting force of the button 32. The end of the first elastic hook 311 near the timer rotary switch 1 rotates around the fixed pin 33 and enters the limiting knob 2 under the deformation force. This releases the limiting force on the anti-rotation hook 11, allowing the timer rotary switch 1 to rotate arbitrarily to the corresponding heating time.

[0069] Under the abutting force of the button 32, the second elastic hook 312 deforms towards the panel 4. The end of the second elastic hook 312 near the timer rotary switch 1, under the action of the deformation force, enters the limiting knob 2 around the fixing pin 33. This releases the second elastic hook 312 from the limiting groove 401 on the radially outer side of the limiting knob 2, allowing the limiting knob 2 to rotate freely.

[0070] During the use of the heating knob device, a normal user can first press the limiting elastic component 3 to apply external pressure to the elastic hook unit 31, causing the elastic hook unit 31 to disengage from the limiting groove 401. This allows the user to manually rotate the limiting knob 2 to the desired heating time and release the pressure on the limiting elastic component 3. At this point, the limiting elastic component 3 engages with the limiting groove 401 corresponding to the heating time. Therefore, for users who cannot accurately distinguish the heating time due to uncertainty about the knob's setting, heating food is simple: turn the timer switch 1 until it cannot be turned further and then release it to cook the food normally. This significantly reduces the difficulty for users who cannot accurately distinguish the heating time due to uncertainty about the knob's setting, and helps improve their self-care ability.

[0071] An optional embodiment of the utility model, referring to... Figure 3 and Figure 4As shown, the first elastic hook 311 may include a first elastic arm 3111 and a first hook portion 3112. The first elastic arm 3111 abuts against the button 32 and the panel 4 respectively. The first hook portion 3112 is angled to the first elastic arm 3111 and extends towards the timer rotary switch 1. The connection between the first elastic arm 3111 and the first hook portion 3112 is rotatably connected to the limiting knob 2. When the button 32 is pressed, the first elastic arm 3111 deforms under the pressing pressure, causing the first hook portion 3112 to rotate away from the timer rotary switch 1, thereby releasing the restriction on the anti-rotation hook 11.

[0072] In this embodiment of the present invention, the first elastic hook 311 may include a first elastic arm 3111 and a first hook portion 3112. In a preferred embodiment, the first elastic arm 3111 and the first hook portion 3112 may be an integral structure. The first elastic arm 3111 abuts against the button 32 and forms abutment against the panel 4. When the button 32 is not pressed, the first elastic arm 3111 abuts against the button 32, keeping the button 32 protruding outwards from the limit button. The first hook portion 3112 is angled to the first elastic arm 3111; that is, the first hook portion 3112 may be tilted onto the first elastic arm 3111. The fixed pin 33 is located at the connection point between the first hook portion 3112 and the first elastic arm 3111. Therefore, when the button 32 is pressed by the user, the abutting force exerted by the button 32 on the first elastic arm 3111 increases, causing the first elastic arm 3111 to deform towards the panel 4. This drives the first hook portion 3112 to rotate around the fixed pin 33, i.e., to rotate away from the timer rotary switch 1 and retract into the limit knob 2. This releases the limit on the anti-rotation hook 11, allowing the timer rotary switch 1 to rotate arbitrarily to the corresponding heating duration.

[0073] An optional embodiment of the utility model, referring to... Figure 4 As shown, a first deformation cavity 311101 is provided inside the first elastic arm 3111. Under the action of pressing pressure, the first deformation cavity 311101 deforms.

[0074] In this embodiment of the invention, a first deformation cavity 311101 is provided inside the first elastic arm 3111. This allows the first elastic arm 3111 to have more deformation space within the limiting knob 2 when it is deformed by the button 32. For example, the cross-sectional shape of the first deformation cavity 311101 can be semi-circular, with its corresponding curved side abutting against the panel 4.

[0075] An optional embodiment of the utility model, referring to... Figure 3 and Figure 4 As shown, the button 32 has an extension cavity 3201, and a portion of the first elastic arm 3111 extends into the extension cavity 3201.

[0076] In this embodiment of the invention, an extension cavity 3201 is provided within the button 32, wherein the extension cavity 3201 is arranged along the axial direction of the button 32, and a portion of the first elastic arm 3111 extends into the extension cavity 3201. This increases the contact area between the first elastic arm 3111 and the button 32, and improves the stability of the fit between them.

[0077] An optional embodiment of the utility model, referring to... Figure 3 and Figure 4 As shown, the second elastic hook 312 may include a second elastic arm 3121 and a second hook portion 3122. The second elastic arm 3121 abuts against the button 32 and the panel 4, respectively. The second hook portion 3122 is angled to the second elastic arm 3121 and extends towards the panel 4. The connection between the second elastic arm 3121 and the second hook portion 3122 is rotatably connected to the limiting knob 2. When the button 32 is pressed, the second elastic arm 3121 deforms under the pressure, causing the second hook portion 3122 to rotate away from the panel 4, thereby releasing the engagement with the limiting groove 401.

[0078] In this embodiment of the present invention, the second elastic hook 312 may include a second elastic arm 3121 and a second hook portion 3122. In a preferred embodiment, the second elastic arm 3121 and the second hook portion 3122 may be an integral structure. The second elastic arm 3121 abuts against the button 32 and forms abutment against the panel 4. When the button 32 is not pressed, the second elastic arm 3121 abuts against the button 32, keeping the button 32 protruding outwards from the limit button. The second hook portion 3122 is angled to the second elastic arm 3121; that is, the second hook portion 3122 may be tilted onto the second elastic arm 3121. The fixed pin 33 is located at the connection point between the second hook portion 3122 and the second elastic arm 3121. Therefore, when the button 32 is pressed by the user, the abutting force exerted by the button 32 on the second elastic arm 3121 increases, causing the second elastic arm 3121 to deform towards the panel 4. This drives the second hook portion 3122 to rotate around the fixed pin 33, i.e., causing the second hook portion 3122 to rotate away from the panel 4 and retract into the interior of the limiting knob 2. This releases the engagement with the limiting groove 401, allowing the limiting knob 2 to rotate freely.

[0079] An optional embodiment of the utility model, referring to... Figure 4 As shown, a second deformation cavity 312101 is provided inside the second elastic arm 3121. Under the action of pressing pressure, the second deformation cavity 312101 deforms.

[0080] In this embodiment of the invention, a second deformation cavity 312101 is provided inside the second elastic arm 3121. This allows the second elastic arm 3121 to have more deformation space within the limiting knob 2 when it is deformed by the button 32. For example, the cross-sectional shape of the second deformation cavity 312101 can be semi-circular, with its corresponding curved side abutting against the panel 4.

[0081] An optional embodiment of the utility model, referring to... Figure 3 and Figure 4 As shown, the button 32 has an extension cavity 3201, and a portion of the second elastic arm 3121 extends into the extension cavity 3201.

[0082] In this embodiment of the invention, an extension cavity 3201 is provided within the button 32, wherein the extension cavity 3201 is arranged along the axial direction of the button 32, and a portion of the second elastic arm 3121 extends into the extension cavity 3201. This increases the contact area between the second elastic arm 3121 and the button 32, and improves the stability of the fit between them.

[0083] An optional embodiment of the utility model, referring to... Figure 3 , Figure 4 as well as Figure 8 As shown, the limiting knob 2 has a first mounting hole 202 and a second mounting hole 203, which are connected to the first through hole 201. The first mounting hole 202 has a first opening facing the timing rotary switch 1, and the second mounting hole 203 has a second opening facing the limiting groove 401. When no external pressure is applied, one end of the elastic hook unit 31 extends outward from the first opening to limit the rotation of the anti-rotation hook 11, and the other end of the elastic hook unit 31 extends outward from the second opening to engage with the limiting groove 401.

[0084] In this embodiment of the present invention, the limiting knob 2 may also have a first mounting hole 202 and a second mounting hole 203. The first mounting hole 202 is used to provide mounting for the first elastic hook 311, and the second mounting hole 203 is used to provide mounting for the second elastic hook 312. The first mounting hole 202 communicates with the first through hole 201, allowing the button 32 to abut against the first elastic hook 311, and the second mounting hole 203 communicates with the first through hole 201, allowing the button 32 to abut against the second elastic hook 312.

[0085] The first mounting hole 202 has a first opening facing the timer rotary switch 1. The first elastic hook 311 extends into the timer rotary switch 1 through the first opening, thereby limiting the rotation angle range of the anti-rotation hook 11. The second mounting hole 203 has a second opening facing the limiting groove 401. The second elastic hook 312 extends into the panel 4 through the second opening, thereby locking the limiting knob 2 by engaging with the limiting groove 401, at which point the limiting knob 2 cannot continue to rotate.

[0086] In summary, this utility model discloses a heating knob device, which may include a timing knob assembly, a limiting knob 2, and a limiting elastic component 3. The timing knob assembly includes a timing rotary switch 1, and an anti-rotation hook 11 is provided on the outer surface of the timing rotary switch 1. The limiting knob 2 is sleeved on the outer surface of the timing rotary switch 1 and is movably connected to the microwave oven panel 4. The limiting knob 2 has a first through hole 201. The limiting elastic component 3 is embedded in the first through hole 201, and includes an elastic hook unit 31 arranged radially along the timing rotary switch 1. Furthermore, when no external pressure is applied, the elastic hook unit 31 engages with the limiting groove 401 in the panel 4, and limits the anti-rotation hook 11, thereby limiting the heating time of the timing knob assembly. Therefore, a normal user can first press the limiting elastic component 3, causing the elastic hook unit 31 to disengage from the limiting groove 401, and then manually rotate the limiting knob 2 to the desired heating time, releasing the pressure on the limiting elastic component 3. At this time, the limiting elastic component 3 engages with the limiting groove 401 corresponding to the heating time. Thus, for users who cannot accurately distinguish the heating time due to uncertainty about the knob's setting, heating food is much easier; they can simply turn the timer switch 1 until it can no longer be turned and then release it to cook the food normally. This significantly reduces the difficulty for users who cannot accurately distinguish the heating time due to uncertainty about the knob's setting, helping to improve their self-care ability.

[0087] Reference Figure 1 As shown in the figure, this utility model embodiment also discloses a microwave oven, which includes a heating knob device as described in any of the above utility model embodiments.

[0088] In this embodiment of the present invention, during the use of the microwave oven, refer to Figure 7 and Figure 8 As shown, when the heating knob device is in its initial state, the anti-rotation hook 11 of the timer rotary switch 1 corresponds to the position where the duration is marked "zero", and the second elastic hook 312 engages with the limiting groove 401 at the position corresponding to the "zero" duration. At this time, the timer rotary switch 1 cannot rotate, and the limiting knob 2 also cannot rotate.

[0089] Normal users (such as guardians of users in special groups) can press the button 32, increasing the abutting force of the button 32 on the first elastic hook 311 and the second elastic hook 312. As a result, the first elastic hook 311 deforms towards the panel 4 under the abutting force of the button 32. The end of the first elastic hook 311 near the timer rotary switch 1, under the action of the deformation force, rotates around the fixed pin 33 and enters the limiting knob 2. This releases the limiting effect on the anti-rotation hook 11, allowing the timer rotary switch 1 to rotate arbitrarily to the corresponding heating time.

[0090] The second elastic hook 312 deforms towards the panel 4 under the abutting force of the button 32. The end of the second elastic hook 312 near the timer rotary switch 1, under the deformation force, enters the limiting knob 2 around the fixed pin 33. This releases the second elastic hook 312 from the limiting groove 401 on the radially outer side of the limiting knob 2, allowing the limiting knob 2 to rotate freely. At this time, a normal user can rotate the limiting knob to the appropriate heating time indicator, corresponding to the limiting groove 401. (Refer to...) Figure 9 As shown, after turning, the button 32 is released, and the second elastic hook 312 engages with the corresponding limiting groove 401. At this time, the position of the limiting knob 2 is locked and cannot be rotated further, thus locking the maximum heating time of the microwave oven. When a special user is heating food, the timer switch 1 can be rotated until it cannot be rotated (i.e., the first elastic hook 311 abuts against the anti-rotation hook 11), and then the timer switch 1 can be released. At this time, the microwave oven can heat the food according to the heating time preset by the normal user. This greatly reduces the difficulty for specific users who cannot accurately distinguish the time of the knob due to uncertainty about the heating time, and helps improve the self-care ability of such users.

[0091] In summary, this utility model discloses a heating knob device and a microwave oven. This utility model embodiment may include a timer knob assembly, a limiting knob 2, and a limiting elastic component 3. The timer knob assembly includes a timer rotary switch 1, with an anti-rotation hook 11 provided on its outer surface. The limiting knob 2 is sleeved on the outer surface of the timer rotary switch 1 and is movably connected to the microwave oven panel 4. The limiting knob 2 has a first through hole 201. The limiting elastic component 3 is embedded in the first through hole 201 and includes an elastic hook unit 31 arranged radially along the timer rotary switch 1. Furthermore, when no external pressure is applied, the elastic hook unit 31 engages with a limiting groove 401 in the panel 4, limiting the anti-rotation hook 11 and thus limiting the heating time of the timer knob assembly. Therefore, a normal user can first press the limiting elastic component 3, causing the elastic hook unit 31 to disengage from the limiting groove 401, and then manually rotate the limiting knob 2 to the desired heating time, releasing the pressure on the limiting elastic component 3. At this time, the limiting elastic component 3 engages with the limiting groove 401 corresponding to the heating time. Thus, for users who cannot accurately distinguish the heating time due to uncertainty about the knob's setting, heating food is much easier; they can simply turn the timer switch 1 until it can no longer be turned and then release it to cook the food normally. This significantly reduces the difficulty for users who cannot accurately distinguish the heating time due to uncertainty about the knob's setting, helping to improve their self-care ability.

[0092] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0093] It will be readily apparent to those skilled in the art that any combination of the above embodiments is feasible. Therefore, any combination of the above embodiments is an implementation scheme of this utility model. However, due to space limitations, this specification will not describe them in detail here.

[0094] Numerous specific details are set forth in the specification provided herein. However, it will be understood that embodiments of the present invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0095] Similarly, it should be understood that, in order to simplify the present invention and aid in understanding one or more of the various aspects of the invention, in the description of exemplary embodiments of the present invention above, various features of the present invention are sometimes grouped together in a single embodiment, figure, or description thereof.

[0096] Furthermore, those skilled in the art will understand that although some embodiments described herein include certain features but not others included in other embodiments, combinations of features from different embodiments are intended to be within the scope of this invention and form different embodiments. For example, in the claims, any of the claimed embodiments can be used in any combination.

Claims

1. A heating knob device, characterized in that, The heating knob device includes: A timing knob assembly, the timing knob assembly including a timing rotary switch (1), and an anti-rotation hook (11) is provided on the outer side of the timing rotary switch (1); Limiting knob (2), the limiting knob (2) is sleeved on the outer surface of the timing rotary switch (1) and is movably connected to the panel (4) of the microwave oven, wherein the limiting knob (2) is provided with a first through hole (201); A limiting elastic component (3) is embedded in the first through hole (201), wherein the limiting elastic component (3) includes an elastic hook unit (31) disposed radially along the timing rotary switch (1); and, When there is no external pressure, the elastic hook unit (31) engages with the limiting groove (401) in the panel (4) and limits the anti-rotation hook (11) to limit the heating time of the timing knob assembly. When external pressure is applied, the elastic hook unit (31) releases the engagement relationship with the limiting groove (401).

2. The heating knob device according to claim 1, characterized in that, The limiting elastic component (3) also includes a button (32), which is embedded in the first through hole (201) along the axial direction of the limiting knob (2) and abuts against the elastic hook unit (31) so that external pressure is generated on the elastic hook unit (31) by pressing the button (32).

3. The heating knob device according to claim 2, characterized in that, The elastic hook unit (31) includes a first elastic hook (311) and a second elastic hook (312), wherein the first elastic hook (311) and the second elastic hook (312) are respectively rotatably connected to the limiting knob (2); wherein, The first elastic hook (311) abuts against the button (32) and extends radially inward along the limiting knob (2) to the outer edge of the timing rotary switch (1) to limit the rotation of the anti-rotation hook (11); The second elastic hook (312) abuts against the button (32) and extends outward along the radial direction of the limiting knob (2) to extend to the inner edge of the panel (4) and form a snap-fit ​​with the limiting groove (401).

4. The heating knob device according to claim 3, characterized in that, The first elastic hook (311) includes: The first elastic arm (3111) abuts against the button (32) and the panel (4) respectively; The first hook portion (3112) is angled to the first elastic arm (3111) and extends toward the timer rotary switch (1); wherein, The connection between the first elastic arm (3111) and the first hook part (3112) is rotatably connected to the limiting knob (2). When the button (32) is pressed, the first elastic arm (3111) deforms under the pressing pressure, causing the first hook part (3112) to rotate away from the timer rotary switch (1) to release the restriction on the anti-rotation hook (11).

5. The heating knob device according to claim 3, characterized in that, The limiting elastic component (3) also includes two fixing pins (33). One fixing pin (33) rotatably connects the first elastic hook (311) to the limiting knob (2), and the other fixing pin (33) rotatably connects the second elastic hook (312) to the limiting knob (2).

6. The heating knob device according to claim 4, characterized in that, The first elastic arm (3111) has a first deformation cavity (311101) inside. When the first elastic arm (3111) is pressed, the first deformation cavity (311101) deforms.

7. The heating knob device according to claim 4, characterized in that, An extension cavity (3201) is provided inside the button (32), and a portion of the first elastic arm (3111) extends into the extension cavity (3201).

8. The heating knob device according to claim 3, characterized in that, The second elastic latch (312) includes: The second elastic arm (3121) abuts against the button (32) and the panel (4) respectively; The second hook portion (3122) is angled to the second elastic arm (3121) and extends toward the panel (4); wherein, The connection between the second elastic arm (3121) and the second hook (3122) is rotatably connected to the limiting knob (2). When the button (32) is pressed, the second elastic arm (3121) deforms under the pressing force, causing the second hook (3122) to rotate away from the panel (4) to release the engagement with the limiting groove (401).

9. The heating knob device according to claim 8, characterized in that, The second elastic arm (3121) has a second deformation cavity (312101) inside. When the second elastic arm (3121) is pressed, the second deformation cavity (312101) deforms.

10. The heating knob device according to claim 8, characterized in that, An extension cavity (3201) is provided inside the button (32), and a portion of the second elastic arm (3121) extends into the extension cavity (3201).

11. The heating knob device according to claim 2, characterized in that, The limiting knob (2) has a first mounting hole (202) and a second mounting hole (203), which are respectively connected to the first through hole (201); wherein, The first mounting hole (202) has a first opening facing the timed rotary switch (1), and the second mounting hole (203) has a second opening facing the limiting groove (401). When there is no external pressure, one end of the elastic hook unit (31) extends outward from the first opening to form a rotation limit on the anti-rotation hook (11), and the other end of the elastic hook unit (31) extends outward from the second opening to form a snap-fit ​​with the limiting groove (401).

12. A microwave oven, characterized in that, The microwave oven includes a heating knob device as described in any one of claims 1-11.

Images