CN-122018628-A - Gas stove and magnetic control knob assembly thereof

CN122018628ACN 122018628 ACN122018628 ACN 122018628ACN-122018628-A

Abstract

The invention provides a gas cooker and a magnetic control knob assembly thereof, wherein the magnetic control knob assembly comprises a fixing part, a knob part and a sensor, the fixing part is provided with a containing groove, the knob part is arranged above the fixing part, the knob part is provided with induction magnets, two magnetic poles of the induction magnets are horizontally and symmetrically distributed along a vertical central line, the induction magnets are positioned in the containing groove and rotate and slide up and down in the containing groove, and the sensor is configured to induce the magnetic field change when the induction magnets rotate and slide in the containing groove. According to the invention, the single sensor is configured to sense the magnetic field change of the magnet in the rotating and sliding operation process to perform integrated detection, so that the rotating operation and the pressing operation are accurately identified, the accurate and stable identification of the rotating operation and the pressing operation by the single sensor is realized, and the structural simplicity, the detection reliability and the production suitability of the magnetic control knob assembly are considered.

Inventors

ZHENG SHILONG
MENG YONGZHE
WANG MINGQIN
ZHU HUADONG

Assignees

青岛海尔智慧厨房电器有限公司
莱阳海尔智慧厨房电器有限公司
海尔智家股份有限公司

Dates

Publication Date: 20260512
Application Date: 20260226

Claims (10)

1. A magnetic control knob assembly, comprising: A fixing part provided with a containing groove; the knob part is arranged above the fixed part, the knob part is provided with induction magnets, two magnetic poles of the induction magnets are horizontally and symmetrically distributed along a vertical central line, and the induction magnets are at least partially positioned in the accommodating groove, rotate in the accommodating groove and slide up and down; and the sensor is configured to sense the magnetic field change when the induction magnet rotates and/or slides in the accommodating groove.
2. The magnetic control knob assembly according to claim 1, wherein, The fixing part comprises an inner base, the inner base is provided with an inner groove and a first outer groove encircling the outer side of the inner groove, and the inner groove forms the accommodating groove; The knob part comprises a knob base, a hollow induction magnet installation part is arranged in the center of the knob base, the induction magnet is relatively and fixedly arranged in the induction magnet installation part, and the induction magnet installation part is positioned in the accommodating groove and can rotate and slide around the central axis of the accommodating groove; the fixed magnets are arranged in the first outer grooves, and two magnetic poles of the fixed magnets are distributed at two axial ends along a vertical central line.
3. The magnetic control knob assembly according to claim 2, wherein, A plurality of mounting grooves are formed in the first outer groove along the circumferential direction, and a plurality of fixed magnets are correspondingly arranged in the plurality of mounting grooves one by one; preferably, the fixing part further comprises a fixing upper cover, the fixing upper cover is provided with an avoidance hole, the fixing upper cover is arranged at the opening of the first outer groove, and the avoidance Kong Birang is arranged in the inner groove.
4. The magnetic control knob assembly according to claim 3, wherein, A plurality of ribs are arranged on the outer side wall of the induction magnet installation part at intervals along the circumferential direction, and a concave part is formed between every two adjacent ribs; the inner wall of the accommodating groove is provided with a protruding part which can radially stretch out and draw back, and the protruding part is sequentially in inserted fit with the plurality of concave parts along with the rotation of the induction magnet mounting part; Preferably, the plurality of concave parts extend along the axial direction, and the convex parts are sequentially in inserted fit with the plurality of concave parts along with the sliding rotation of the induction magnet mounting part; Preferably, the convex surface of the convex rib is a round sliding surface.
5. The magnetic control knob assembly according to claim 4, wherein, A through groove is formed in the side wall of the accommodating groove; The fixing part further comprises a poking piece, the poking piece comprises two elastic arms, the end parts of the two elastic arms are connected to form the protruding part, the two elastic arms are movably connected with the first outer groove, and the protruding part penetrates through the penetrating groove to be in inserted fit with the concave part; Preferably, a limiting part is arranged at the bottom of the first outer groove, and the two elastic arms are in abutting limiting connection with the limiting part; Preferably, two paddles are symmetrically arranged in the accommodating groove.
6. The magnetic control knob assembly according to claim 5, wherein, The inner bottom seat is also provided with a second outer groove surrounding the outer side of the inner groove, and the second outer groove and the first outer groove are arranged back to back; A supporting piece is fixedly arranged in the second outer groove, the supporting piece is provided with a supporting part, and the supporting part is inserted into the through groove and is abutted with the protruding part; preferably, the inner base is connected with a non-slip mat.
7. The magnetic control knob assembly according to any one of claims 2-6, wherein, An annular flange is arranged on the outer side wall of the inner base, an elastic reset piece is clamped between the annular flange and the knob base, and the elastic reset piece is configured to have elastic force for resetting after the knob base slides downwards; Preferably, the fixing part further comprises an outer base, the outer base is abutted with the annular flange to form a limiting groove, and one end of the elastic reset piece is embedded in the limiting groove; Preferably, the elastic restoring member adopts a spring.
8. The magnetic control knob assembly according to claim 7, wherein, The knob part also comprises a knob shell, and the knob shell is covered on the outer side of the knob base and is connected with the knob base; Preferably, the knob housing extends axially to the outside of the outer base and is limited in rotation relative to the outer base.
9. The magnetic control knob assembly according to claim 8, wherein, The knob shell comprises an annular shell and a knob upper cover which is covered at the opening of the annular shell; wherein the annular shell is connected with the knob base; preferably, the knob upper cover is made of a light-transmitting material, and a shading sheet is arranged between the knob upper cover and the knob base.
10. A gas hob, characterized in, that it comprises a magnetic control knob assembly according to any one of the claims 1 to 9.

Description

Gas stove and magnetic control knob assembly thereof Technical Field The invention belongs to the technical field of gas cookers, and particularly relates to a gas cooker and a magnetic control knob assembly thereof. Background The magnetic control knob is used as a non-contact control element, realizes a rotation adjusting function by means of a magnetic induction principle, has the core advantages of avoiding the problems of component abrasion, dust invasion and the like caused by physical contact, effectively improving the durability and the operation reliability of the element, and is widely applied to the field of household appliances such as gas cookers, gas water heaters, range hoods and the like. The existing magnetic control knob technology is designed by taking a single rotation adjusting function as a core, cannot realize pressing operation, lacks the composite operation execution capability of rotation and pressing, is difficult to meet the multi-element operation requirement of the household appliance under the complex control scene, and greatly limits the expansion and function suitability of the application scene. In order to solve the technical defects, a magnetic control knob with a pressing control function is provided in the related art, wherein two magnetic poles of a main magnet are horizontally distributed, an infrared induction module and a magnetic induction chip are configured at the same time, and the axial displacement change and the circumferential rotation angle of the main magnet are respectively detected, so that the independent identification and signal output of the pressing operation and the rotation operation are realized. However, the design of pressing detection is realized through the infrared sensing module, so that the technical scheme has a plurality of application defects that firstly, the sensing precision of the infrared sensing module is easily influenced by factors such as ambient light, greasy dirt shielding, module dust accumulation and the like, in the application scene of household appliances such as kitchen and the like with more lampblack and dust, the problems of failure in pressing signal identification, false triggering and the like are extremely easy to occur, the accuracy of operation control is reduced, secondly, the structural design of the infrared sensing module and the magnetic induction chip are separated, the number of internal components and the wiring complexity of the magnetic control knob are increased, the overall manufacturing cost is increased, the failure probability of the components is increased, the mass production and the later maintenance of products are not facilitated, thirdly, the axial displacement precision requirement of the infrared sensing detection mode on the main magnet is higher, the assembly clearance is required to be strictly controlled, the assembly process difficulty of the products is improved, the identification effect of pressing operation is easily influenced due to the assembly error, and the production efficiency and the control stability of the products are difficult to be considered. In view of this, the present invention has been made. Disclosure of Invention The invention aims to solve the technical problems of at least overcoming the defects of the prior art, providing a magnetic control knob assembly, wherein a single sensor is configured to sense the magnetic field change of a magnet in the rotating and sliding operation process to perform integrated detection, so that the rotating operation and the sliding operation are accurately identified, the accurate and stable identification of the rotating operation and the sliding operation by using the single sensor is realized, the structural simplicity, the detection reliability and the production suitability of the magnetic control knob assembly are considered, the magnetic control knob assembly is more suitable for complex household appliance application scenes with more oil smoke and dust such as a kitchen, and the overall durability and the control experience of the magnetic control knob assembly are improved. In order to solve the technical problems, the basic concept of the technical scheme adopted by the invention is to provide a magnetic control knob assembly, which comprises: A fixing part provided with a containing groove; the knob part is arranged above the fixed part, the knob part is provided with induction magnets, two magnetic poles of the induction magnets are horizontally and symmetrically distributed along a vertical central line, and the induction magnets are at least partially positioned in the accommodating groove and can rotate and slide up and down in the accommodating groove; and the sensor is configured to sense the magnetic field change when the induction magnet rotates and/or slides in the accommodating groove. In some embodiments, the fixing portion includes an inner base having an inner groove and a first outer groove surroundin