Control knob with inching and display functions and electrical product

Abstract

The utility model discloses a control knob with inching and display functions and an electrical product, comprising a main circuit board assembly which comprises a main circuit board and an encoder arranged on the main circuit board; the display module comprises a fixed seat and a display mounted on the fixed seat; the detection module comprises a detection circuit board, and an inching switch and a position detection switch which are connected to the detection circuit board; the knob is rotatably arranged on the outer wall of the encoder in a sleeving manner; a first trigger part and a second trigger part are arranged outside the knob along the peripheral side; the knob is provided with a rotary reset piece; therefore, through the arrangement of the main circuit board assembly, the display module, the detection module and the knob, the triggering of the switch key and the triggering of the inching mode are realized, the triggering switching operation is simple, the quick switching between the inching position and the zero gear detection position can be realized, the zero gear detection position can be quickly and automatically reset, and the running gear can be clearly displayed by using the display; the operation is convenient, and the use experience is better.

Description

Technical Field

[0001] The utility model relates to the field of encoder knob technology, in particular to a control knob with inching and display functions and an electrical product. The knob is mainly but not limited to being used in kitchenware electrical products. Background Art

[0002] The encoder knob used in electrical products is usually rotatably mounted on the outer wall of the encoder. When the knob is turned, the outer ring of the encoder can be driven to rotate, thereby adjusting the different operating gears of the electrical product. If other trigger switch functions are added to the knob, the conventional practice is to fix the button in the inner ring of the encoder. For a knob with a display screen, it is difficult to install the button due to the limited internal space of the encoder. Even if the theoretical design is feasible, it is difficult to actually make and assemble it, and the feasibility of implementing the theoretical solution is low.

[0003] Based on this, the industry has been developing improvement solutions. For example, CN 216749685 U discloses a control knob, which includes: a circuit board assembly, including a circuit board body and a switch key and an encoder installed on the circuit board body, the middle of the encoder has a through hole, and the switch key is located outside the projection range of the through hole on the circuit board body; a knob assembly, connected to the encoder; a bracket, located between the knob assembly and the switch key, pressing the knob assembly can drive the bracket to trigger the switch key, which is achieved by setting the switch key outside the projection range of the through hole circuit board body in the middle of the encoder, and providing a bracket between the knob assembly and the switch key, so that pressing the knob assembly can drive the bracket to squeeze the switch key, thereby triggering the switch key, so that the knob assembly has multiple functions.

[0004] However, the knob needs to satisfy the rotation action, and the entire knob assembly needs to satisfy the pressing operation, which is troublesome from the perspective of component design, assembly and user operation, and the overall space occupied is large. Utility Model Content

[0005] In view of this, the utility model aims to solve the deficiencies in the prior art, and its main purpose is to provide a control knob and electrical product with inching and display functions, which realize the triggering of the switch key and the inching mode through a simple structure, and the trigger switching operation is simple. It can quickly switch between the inching position and the zero-gear detection position, and can quickly and automatically reset to the zero-gear detection position. The operating gear position can be clearly displayed on the display, which is easy to operate and has a good user experience.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A control knob with inching and display functions, comprising

[0008] A main circuit board assembly, comprising a main circuit board and an encoder arranged on the main circuit board; a through hole is provided in the middle of the encoder, and the through hole passes through the upper and lower ends of the encoder;

[0009] A display module, comprising a fixing seat and a display mounted on the fixing seat; the display module is fixed on the main circuit board through the through hole;

[0010] A detection module, comprising a detection circuit board and a moment switch and a position detection switch connected to the detection circuit board, wherein the moment switch and the position detection switch are arranged along the outer periphery of the knob; the detection circuit board is electrically connected to the main circuit board;

[0011] A knob is rotatably sleeved on the outer wall of the encoder; a first trigger portion and a second trigger portion are arranged on the outer circumference of the knob; and the knob is provided with a rotation reset member, and the rotation reset member drives the knob to rotate and reset;

[0012] When the first trigger part corresponds to the position detection switch setting, it is in the off state; when the knob is rotated along the first rotation direction, the first trigger part disengages from the position detection switch, and the machine is in the running working state; when the knob is rotated along the second rotation direction until the second trigger part triggers the inching switch, the machine is in the working state of the inching mode, and the knob is released. Then, the knob rotates in the first knob direction under the resetting action of the rotating resetting member, the second trigger part disengages from the inching switch, and the first trigger part resets to the corresponding position detection switch setting, so that the machine returns to the off state.

[0013] As a preferred solution, a first interface is provided on the main circuit board, and the display is also connected to a second interface, and the first interface is electrically connected to the second interface.

[0014] As a preferred embodiment, a protrusion is provided on the outside of the knob, and the protrusion has a radial outer side surface and a first end side surface and a second end side surface respectively connected to the circumferential ends of the radial outer side surface, the first trigger portion is formed on the radial outer side surface, and the second trigger portion is formed on the second end side surface.

[0015] As a preferred embodiment, the rotational reset member is a torsion spring, and a torsion arm of the torsion spring acts on the knob; when the knob rotates along the second rotation direction until the second trigger part triggers the momentary switch, the torsion spring is in a force storage state, and when the knob is released, the torsion spring drives the knob to rotate in the first knob direction until the first trigger part is reset to the corresponding position detection switch setting.

[0016] As a preferred solution, the torsion arm is blocked on the same side as the second triggering portion.

[0017] As a preferred solution, the main circuit board is installed on a mounting box, and the spring body and another torsion arm of the torsion spring are installed on the mounting box.

[0018] As a preferred embodiment, a first installation cavity and a second installation cavity are provided on the installation box, the encoder is located in the first installation cavity, and a gap is maintained between the encoder and the inner circumferential side wall of the first installation cavity, and the inner end of the knob extends into the gap; the detection module is installed in the second installation cavity.

[0019] As a preferred solution, a transparent lens is installed on the top of the knob, and a decorative ring can usually be selectively provided on the outer periphery of the knob.

[0020] An electrical product comprises an electrical product body and a control knob installed on the electrical product body, wherein the control knob is any of the above-mentioned control knobs with inching and display functions.

[0021] As a preferred solution, the electrical product is a chef machine, a hot water shell, a juicer, an oven or an air fryer.

[0022] Compared with the prior art, the utility model has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical scheme that it mainly realizes the triggering of the switch key and the triggering of the inching mode by setting the main circuit board assembly, the display module, the detection module, and the knob, and uses a simple and ingenious structure. The triggering switching operation is simple, and it can quickly switch between the inching position and the zero gear detection position, and can quickly and automatically reset to the zero gear detection position, and the display can be used to clearly display the operating gear position, which is convenient to operate and has a good user experience. At the same time, it has a compact structure and occupies less space, which is conducive to the installation and application of control hotels on electrical products.

[0023] In order to more clearly illustrate the structural features and functions of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional diagram of a control knob with inching and display functions according to an embodiment of the utility model;

[0025] Figure 2 This is a first exploded view of a control knob with inching and display functions according to an embodiment of the present utility model;

[0026] Figure 3 It is a second exploded view of the control knob with inching and display functions according to the embodiment of the utility model;

[0027] Figure 4 It is a three-dimensional diagram of a control knob with inching and display functions according to an embodiment of the utility model;

[0028] Figure 5 It is a cross-sectional view of a control knob with inching and display functions according to an embodiment of the utility model;

[0029] Figure 6 This is an exploded view of an electrical product to which a control knob with inching and display functions according to an embodiment of the utility model is applied (in which only a partial structure of the main body of the electrical product is shown);

[0030] Figure 7 It is a cross-sectional view of an electrical product to which a control knob with inching and display functions according to an embodiment of the utility model is applied (in which only a partial structure of the main body of the electrical product is shown).

[0031] Description of the accompanying drawings: main circuit board assembly 10", display module 20", detection module 30", knob 40", main circuit board 11", encoder 12", fixing seat 21", display 22", detection circuit board 31", position detection switch 32", inching switch 33", first trigger part 41", second trigger part 42", rotation reset member 50", a torsion arm 51", radial outer side surface 4011", first end side surface 4012", second end side surface 4013", installation box 60", first installation cavity 61", second installation cavity 62", lens 70", decorative ring 80", electrical product body 1", control knob 2". DETAILED DESCRIPTION

[0032] Please refer to Figures 1 to 7 As shown, it shows the specific structure of an embodiment of the utility model.

[0033] In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "up", "down", "left", "right", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0034] A control knob with inching and display functions comprises a main circuit board assembly 10", a display module 20", a detection module 30" and a knob 40".

[0035] The main circuit board assembly 10" includes a main circuit board 11" and an encoder 12" arranged on the main circuit board 11"; the middle part of the encoder 12" has a through hole, and the through hole passes through the upper and lower ends of the encoder 12". The main circuit board 11" is provided with a first interface, and the first interface is used for signal connection with the display module 20", which can be a connecting lead or a socket.

[0036] The display module 20" includes a fixing seat 21" and a display 22" mounted on the fixing seat 21"; the display module 20" is fixed on the main circuit board 11" through the through hole; the display 22" is also connected to a second interface, and the first interface is detachably electrically connected to the second interface. Similarly, the second interface is a connecting lead or a plug.

[0037] The detection module 30'' includes a detection circuit board 31'' and a position detection switch 32'' and a moment switch 33'' connected to the detection circuit board 31''. The position detection switch 32'' and the moment switch 33'' are arranged along the outer periphery of the knob 40''; the detection circuit board 31'' is electrically connected to the main circuit board 11''.

[0038] The knob 40" is rotatably mounted on the outer wall of the encoder 12"; the outer side of the knob 40" is provided with a first trigger portion 41" and a second trigger portion 42"; and the knob 40" is provided with a rotation reset member 50", which drives the knob 40" to rotate and reset; when the first trigger portion 41" is set corresponding to the position detection switch 32" (the position detection switch 32" is located at the zero gear detection position), it is in the off state; when the knob 40" is rotated along the first rotation direction, the first trigger portion 41" When the position detection switch 32" is disengaged, the machine is in the operating state; when the knob 40" is rotated along the second rotation direction until the second trigger part 42" triggers the inching switch 33", the machine is in the operating state in the inching mode; when the knob 40" is released, the knob 40" rotates along the direction of the first knob 40" under the reset drive action of the rotation reset member 50", the second trigger part 42" is disengaged from the inching switch 33", and the first trigger part 41" is reset to the setting corresponding to the position detection switch 32", so that the machine returns to the shutdown state. A protrusion 401" is provided on the outside of the knob 40", and the protrusion 401" has a radial outer side surface 4011" and a first end side surface 4012" and a second end side surface 4013" respectively connected to the circumferential ends of the radial outer side surface 4011". The first trigger portion 41" is formed on the radial outer side surface 4011", and the second trigger portion 42" is formed on the second end side surface 4013". In this embodiment, the rotation reset member 50" is a torsion spring, and a torsion arm 51" of the torsion spring acts on the knob 40", specifically, the torsion arm blocks the same side of the second trigger portion 42". When the knob 40" rotates along the second rotation direction until the second trigger portion 42" triggers the moment switch 33", the torsion spring is in a force storage state, and when the knob 40" is released, the torsion spring drives the knob 40" to rotate downward along the first knob 40" direction until the first trigger portion 41" is reset to the setting corresponding to the position detection switch 32".

[0039] An installation box 60" is also provided, and the main circuit board 11" is installed on the installation box 60", and the spring body of the torsion spring and the other torsion arm are installed on the installation box 60". The installation box 60" is provided with a first installation cavity 61" and a second installation cavity 62" located next to the first installation cavity 61". The encoder 12" is located in the first installation cavity 61", and the bottom of the first installation cavity 61" is open to allow the encoder 12" to be connected to the main circuit board 11", and a gap is maintained between the encoder 12" and the inner peripheral side wall of the first installation cavity 61", and the inner end of the knob 40" extends into the gap to be rotatably mounted on the outer wall of the encoder 12"; the detection module 30" is installed in the second installation cavity 62".

[0040] In addition, a transparent lens 70" is installed on the top of the knob 40", and a lens installation groove is provided at the top position of the inner cavity of the knob 40", which is a card slot. The periphery of the lens 70" is provided with a card bulge, and the lens is pressed into the knob 40" from top to bottom, and the card bulge is carded into the card slot and is limited by the top wall of the card slot to prevent the lens 70" from slipping out of the knob 40" upwards. Usually, a decorative ring 80" can also be selectively provided on the outer periphery of the knob 40".

[0041] An electrical product includes an electrical product body 1" and a control knob 2" installed on the electrical product body 1", wherein the control knob 2" is a control knob with inching and display functions as described in any of the above items. The electrical product may be a kitchen appliance or other electrical product, such as a chef machine, a water heater, a juicer, an oven, an air fryer or other electrical products.

[0042] The initial state is the shutdown state, the first trigger part 41" is set corresponding to the position detection switch 32" (the position of the position detection switch 32" is the zero gear detection position), and the first trigger part 41" triggers the position detection switch 32" to make it in a normally closed state; when the user rotates the knob 40" clockwise, the first trigger part 41" is separated from the position detection switch 32", and the machine is in the startup state; when the user rotates the knob 40" counterclockwise to return to the shutdown position (that is, the position detection switch 32" is located), the position detection switch 32" is triggered by the first trigger part 41 ” The trigger is closed again, and the machine is in the off state; the user rotates the knob 40” counterclockwise to start the inching function, at which time the first trigger part 41” disengages from the position detection switch 32” in the counterclockwise direction, the torsion spring accumulates force, and at the same time the second trigger part 42” triggers the inching switch 33”, and the machine starts to work; when the user releases his hand, the stored force of the torsion spring is released, and the knob 40” is pushed back to the off position (also called the zero-gear detection position), the second trigger part 42” has disengaged from the inching switch 33”, and at the same time the first trigger part 41” triggers the position detection switch 32”, and the machine returns to the off state.

[0043] The design focus of the utility model is that it mainly realizes the triggering of the switch key and the triggering of the inching mode by setting the main circuit board assembly 10", the display module 20", the detection module 30", and the knob 40" with a simple and ingenious structure. The triggering switching operation is simple, and it can quickly switch between the inching position and the zero-gear detection position, and can quickly and automatically reset to the zero-gear detection position. The display can clearly display the operating gear position, which is convenient to operate and has a good user experience. At the same time, it has a compact structure and occupies less space, which is conducive to the installation and application of control hotels on electrical products.

[0044] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any slight modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A control knob with inching and display functions, Features: Included A main circuit board assembly, comprising a main circuit board and an encoder arranged on the main circuit board; a through hole is provided in the middle of the encoder, and the through hole passes through the upper and lower ends of the encoder; A display module, comprising a fixing seat and a display mounted on the fixing seat; the display module is fixed on the main circuit board through the through hole; A detection module, comprising a detection circuit board and a moment switch and a position detection switch connected to the detection circuit board, wherein the moment switch and the position detection switch are arranged along the outer periphery of the knob; the detection circuit board is electrically connected to the main circuit board; A knob is rotatably sleeved on the outer wall of the encoder; a first trigger portion and a second trigger portion are arranged on the outer circumference of the knob; and the knob is provided with a rotation reset member, and the rotation reset member drives the knob to rotate and reset; When the first trigger part corresponds to the position detection switch, it is in the off state; when the knob is rotated along the first rotation direction, the first trigger part is separated from the position detection switch, and the machine is in the running working state; Rotate the knob along the second rotation direction until the second trigger part triggers the inching switch, and the machine is in the working state of the inching mode. Release the knob, and the knob rotates along the first knob direction under the resetting action of the rotating reset member, and the second trigger part disengages from the inching switch. The first trigger part resets to the corresponding position detection switch setting, so that the machine returns to the shutdown state.

2. The control knob with inching and display functions according to claim 1, Features: The main circuit board is provided with a first interface, the display is also connected with a second interface, and the first interface is electrically connected to the second interface.

3. The control knob with inching and display functions according to claim 1, Features: A protrusion is provided on the outside of the knob, and the protrusion has a radial outer side surface and a first end side surface and a second end side surface respectively connected to the circumferential ends of the radial outer side surface, the first trigger portion is formed on the radial outer side surface, and the second trigger portion is formed on the second end side surface.

4. The control knob with inching and display functions according to claim 1 or 3, Features: The rotation reset member is a torsion spring, and a torsion arm of the torsion spring acts on the knob; when the knob is rotated along the second rotation direction until the second trigger part triggers the moment switch, the torsion spring is in a force storage state, and when the knob is released, the torsion spring drives the knob to rotate in the first knob direction until the first trigger part is reset to the corresponding position detection switch setting.

5. The control knob with inching and display functions according to claim 4, Features: The torsion arm blocks the same side of the second triggering portion.

6. The control knob with inching and display functions according to claim 4, Features: The main circuit board is installed on the installation box, and the spring body and another torsion arm of the torsion spring are installed on the installation box.

7. The control knob with inching and display functions according to claim 6, Features: The installation box is provided with a first installation cavity and a second installation cavity, the encoder is located in the first installation cavity, and a gap is maintained between the encoder and the inner peripheral side wall of the first installation cavity, and the inner end of the knob extends into the gap; the detection module is installed in the second installation cavity.

8. The control knob with inching and display functions according to claim 1, Features: A transparent lens is installed on the top of the knob, and a decorative ring can usually be selectively arranged on the outer periphery of the knob.

9. An electrical product, Features: The invention comprises an electrical product body and a control knob installed on the electrical product body, wherein the control knob is a control knob with inching and display functions as claimed in any one of claims 1 to 8.

10. The electrical product according to claim 9, Features: The electrical appliance product is a food processor, a kettle, a juicer, an oven or an air fryer.

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