Magnetic type knob switch for bath heater

Abstract

The utility model relates to a magnetic type knob switch for a bath heater. Existing knob switches are easily affected with damp and water, and use experience is affected. The rotary knob comprises a body and a rotary knob, a sealing cavity is formed in the body, a rotary encoder is arranged in the sealing cavity, a magnetic attraction assembly is arranged between the rotary knob and a rotating piece of the rotary encoder, and the magnetic attraction assembly comprises a driving piece arranged on the rotary knob and a transmission piece arranged on the rotating piece. The driving piece and the transmission piece are attracted and transmit circumferential driving force from the rotary knob to the rotating piece, so that the rotary knob and the rotating piece are in air linkage. The rotary knob is attracted to the body through the magnetic attraction assembly, and axial driving force generated by rotation of the rotary knob drives the rotating part to synchronously rotate in a spaced mode through the magnetic attraction assembly, so that the rotary knob can adjust the temperature of the bath heater through the rotary encoder, it is ensured that the rotary encoder is sealed and wrapped by the sealing cavity, and the situation that the rotary encoder is damaged due to damp is prevented; and cleaning is facilitated by disassembling the rotary knob, dust and scale accumulation is prevented, and the use experience is improved.

Description

Technical Field

[0001] The utility model relates to the field of household appliances, in particular to a magnetic knob switch for a bathroom heater. Background Art

[0002] The existing bathroom heater is controlled by a switch set in the bathroom. The switch includes a body and a knob set on the body. The body is provided with an installation cavity. The installation cavity is provided with a rotary encoder for adjusting the operating power of the bathroom heater. The knob is connected to the rotary encoder through a shaft. The user controls the selection encoder by turning the knob, and then adjusts the temperature in the bathroom by controlling the operating power of the bathroom heater. Since the knob and the rotary encoder are connected by a shaft and the humidity in the bathroom is high, moisture is easily input into the installation cavity along the shaft, causing the rotary encoder to be easily damaged due to long-term operation in a humid environment. In addition, since the knob is fixed to the body, dust and scale are easily accumulated in the gap between the two, and it cannot be effectively cleaned, affecting the user experience. Utility Model Content

[0003] In order to address the deficiencies in the prior art, the utility model provides a magnetic knob switch for a bathroom heater. A magnetic component is set up to realize the remote linkage between the knob and the rotating part, ensuring that the rotary encoder is sealed and wrapped by the sealed cavity, thereby preventing the rotary encoder from being damaged due to moisture. The knob can also be disassembled for easy cleaning, preventing dust and scale accumulation, thereby improving the user experience.

[0004] The utility model is realized in the following way: a magnetic knob switch for a bathroom heater, comprising a main body and a knob arranged outside the main body, a sealed cavity being arranged in the main body, a rotary encoder being arranged in the sealed cavity, a magnetic component being arranged between the knob and the rotating part of the rotary encoder, the magnetic component comprising a driving part arranged on the knob and a transmission part arranged on the rotating part, the driving part and the transmission part are attracted to each other and transmit the circumferential driving force from the knob to the rotating part, so that the knob and the rotating part are linked in the air. The knob is attracted to the main body through the magnetic component, and the axial driving force generated by the rotation of the knob drives the rotating part to rotate synchronously in the air through the magnetic component, so that the knob can adjust the temperature of the bathroom heater through the rotary encoder, which ensures that the rotary encoder is sealed and wrapped in the sealed cavity to prevent the rotary encoder from being damaged due to moisture, and the knob can be disassembled to facilitate cleaning, prevent dust and scale accumulation, and improve the user experience.

[0005] Preferably, the middle part of the rotating member is rotatably connected to the rotary encoder, and the knob is attracted to the transmission member provided on the rotating member through the driving member, so that the knob and the rotating member are concentrically arranged. The rotating member is used to fix the transmission member and convert the circumferential driving force received into the acting force required to adjust and control the rotary encoder by increasing the length of the force arm, which not only reduces the requirement for the magnetic force of the magnetic attraction assembly, but also ensures that the rotating member and the knob can rotate synchronously, improving the control accuracy.

[0006] Preferably, the corresponding driving member and transmission member are N-level magnet and S-level magnet that can be attracted to each other. The driving member and the transmission member are respectively set as N-level magnet and S-level magnet, which not only ensures that the knob can be firmly attracted to the main body, but also ensures that the rotating member can rotate synchronously with the knob, and then transmits the circumferential driving force.

[0007] Preferably, the rotating member includes at least three transmission members circumferentially and equally spaced. The driving members corresponding to the transmission members one by one are provided on the rear end wall of the knob facing the main body. The knob is attached to the main body and fixedly connected by the corresponding driving members and transmission members being attracted to each other, which not only improves the attraction reliability by increasing the number of transmission members and driving members, but also can accurately position the knob through the transmission members and driving members corresponding to each other one by one, ensuring that the knob and the rotating member always maintain a coaxial posture with each other.

[0008] Preferably, the transmission member is an N-level magnet or an S-level magnet, which is convenient for the knob to be quickly attracted to the main body.

[0009] Preferably, the transmission members are N-level magnets and S-level magnets alternately arranged circumferentially, which is convenient for the transmission members and the driving members to be quickly attracted to each other correspondingly, and then ensures the effective transmission of the circumferential driving force by eliminating the circumferential angle difference between the transmission members and the driving members. When the driving members and the transmission members approaching each other are both N-level magnets, they will automatically deflect due to the principle of like poles repelling each other, thus ensuring that the driving members can be accurately attracted to the magnets with opposite polarities.

[0010] Preferably, the rotating member is in a cross shape, and the rotating member has four ends and can accommodate four transmission members, which improves the linkage reliability by increasing the number of groups of transmission members and driving members.

[0011] Preferably, the rotating member is in a Y shape, and the rotating member has three ends and can accommodate three transmission members, which reduces the processing cost by limiting the number of groups of transmission members and driving members.

[0012] Preferably, the main body includes a base with an internal assembly groove and a cover plate covering the base. The cover plate covers the notch of the assembly groove and encloses to form the sealing cavity. The base and the cover plate are processed and assembled independently, which is not only convenient for processing, but also ensures the assembly convenience.

[0013] Preferably, a positioning shaft is provided on the cover plate facing the knob side. The positioning shaft and the rotating member are coaxially arranged. A limiting hole is provided in the middle of the rear side wall of the knob. The limiting hole is sleeved on the positioning shaft and guides the knob to rotate around the axis of the rotating member to limit the radial offset of the knob. The positioning shaft is arranged on the cover plate and is sleeved with the limiting hole on the knob, so that the knob can rotate around the positioning shaft, preventing the driving member and the transmission member from being disengaged due to radial force and ensuring the circumferential driving force transmission efficiency of the magnetic attraction assembly.

[0014] Preferably, the cover plate is a transparent glass plate or acrylic plate, which not only ensures the sealing performance of the sealed cavity, prevents water vapor from entering, but also effectively reduces costs and is convenient for processing.

[0015] Preferably, a sealing ring is provided at the notch of the assembly groove. The cover plate covers the base and tightly seals and clamps the sealing ring to block the gap between the cover plate and the base. The sealing ring is clamped and limited by the cover plate and the notch of the assembly groove, effectively blocking the gap between the cover plate and the base and preventing water vapor from entering the sealed cavity. Description of the Drawings

[0016] Figure 1 is the disassembled structural schematic diagram of the knob switch;

[0017] Figure 2 is the assembled structural schematic diagram of the knob switch;

[0018] Figure 3 is the cross-sectional structural schematic diagram of the knob switch;

[0019] In the figure: 1, body; 2, knob; 3, driving member; 4, transmission member; 5, rotating member; 6, limiting hole; 7, positioning shaft; 8, rotary encoder. Detailed Embodiments

[0020] The following further illustrates the substantial features of the present invention in conjunction with the specification drawings and specific embodiments.

[0021] As Figure 1The magnetic knob switch for a bathroom heater shown is composed of a body 1 and a knob 2 arranged outside the body 1. A sealed cavity is arranged in the body 1, and a rotary encoder 8 is arranged in the sealed cavity. A magnetic component is arranged between the knob 2 and the rotating member 5 of the rotary encoder 8. The magnetic component includes a driving member 3 arranged on the knob 2 and a transmission member 4 arranged on the rotating member 5. The driving member 3 and the transmission member 4 are attracted to each other and transmit the circumferential driving force from the knob 2 to the rotating member 5, so that the knob 2 and the rotating member 5 are linked in the air. The knob 2 is attracted to the body 1 by the magnetic component. The axial driving force generated by the rotation of the knob 2 drives the rotating member 5 to rotate synchronously in the air through the magnetic component, so that the knob 2 can adjust the temperature of the bathroom heater through the rotary encoder 8, which ensures that the rotary encoder 8 is sealed and wrapped in the sealed cavity to prevent the rotary encoder 8 from being damaged due to moisture. The knob 2 and the body 1 are separated to facilitate cleaning, prevent dust and scale accumulation, and improve the user experience.

[0022] In actual operation, the knob 2 is detachably mounted on the body 1 (e.g. Figure 2 As shown in the figure, it is ensured that the knob 2 can control the rotary encoder 8 through the magnetic suction component after being installed in place, and the body 1 can be cleaned by removing the knob 2 to prevent the accumulation of dust and scale. After the knob 2 is installed in place, the magnetic suction component is used to fix the knob 2 to ensure that the knob 2 can be attracted to the body 1, and it can also ensure that the rotational force generated by the knob 2 can be effectively transmitted to the rotating member 5, ensuring that the rotary encoder 8 can be controlled by the knob 2.

[0023] In actual operation, the middle part of the rotating member 5 is rotatably connected to the rotary encoder 8, and the knob 2 is attracted to the transmission member 4 provided on the rotating member 5 through the driving member 3, so that the knob 2 and the rotating member 5 are arranged concentrically with each other. The corresponding driving member 3 and the transmission member 4 are N-class magnets and S-class magnets that can attract each other, which not only ensures that the driving member 3 and the transmission member 4 can attract each other to prevent the knob 2 from being separated from the body 1, but also ensures that the rotating member 5 can rotate synchronously with the knob 2, effectively improving the control accuracy of the rotary encoder 8. The driving member 3 and the transmission member 4 can be matched through a variety of structures, including but not limited to the following structures:

[0024] Structure 1: A plurality of driving members 3 are arranged on the knob 2, and the driving members 3 are alternately arranged with N-class magnets and S-class magnets in a circumferential direction, and the rotating member 5 is provided with transmission members 4 corresponding to the driving members 3 one by one, and the transmission members 4 are also alternately arranged with S-class magnets and N-class magnets in a circumferential direction, so that the corresponding driving members 3 and transmission members 4 are N-class magnets and S-class magnets respectively, ensuring that the knob 2 is firmly attracted to the main body 1, and when the driving members 3 and transmission members 4 of the same level are close to each other, the repulsion can be utilized to ensure that the knob 2 and the rotating member 5 rotate synchronously.

[0025] Structure Two: The driving members 3 on the knob 2 are all N-level magnets, and the transmission members 4 on the rotating member 5 are all S-level magnets. The transmission members 4 and the driving members 3 correspond to each other one by one to ensure that the knob 2 is firmly attracted to the body 1.

[0026] Structure Three: The driving members 3 on the knob 2 are all S-level magnets, and the transmission members 4 on the rotating member 5 are all N-level magnets. The transmission members 4 and the driving members 3 correspond to each other one by one to ensure that the knob 2 is firmly attracted to the body 1.

[0027] In actual operation, the rotating member 5 includes at least three circumferentially equally spaced transmission members 4. The driving members 3 corresponding to the transmission members 4 one by one are provided on the rear end wall of the knob 2 facing the body 1. The knob 2 is attached to the body 1 and is fixedly connected by the corresponding driving members 3 and transmission members 4. By increasing the number of groups of the driving members 3 and the transmission members 4, it is ensured that the knob 2 is coaxially arranged with the rotating member 5 after being fixedly connected, so as to facilitate the knob 2 to transmit the rotational force to the rotating member 5 through the magnetic attraction assembly. When in use, the rotating member 5 is cross-shaped and includes four spaced transmission members 4. The outer diameter of the circumscribed circle of the rotating member 5 matches the diameter of the knob 2 to ensure that the driving member 3 can be arranged in the knob 2 and is matched with the corresponding transmission member 4. By reducing the distance between the corresponding driving member 3 and the transmission member 4, the magnetic attraction force is increased, thereby improving the control reliability of the knob 2. In addition, the rotating member 5 can also be Y-shaped and provided with three transmission members 4, which should also be regarded as specific embodiments of the present invention.

[0028] In actual operation, the body 1 includes a base with an internal assembly groove and a cover plate covering the base. The cover plate covers the notch of the assembly groove and encloses to form the sealing cavity. The base and the cover plate are independently processed and assembled, which is convenient for processing and assembly and improves production efficiency. A sealing ring is provided at the notch of the assembly groove. The cover plate covers the base and tightly clamps the sealing ring to block the gap between the cover plate and the base. The sealing ring has the same contour as the notch of the assembly groove and can be clamped and fixed by the cover plate and the base, which not only effectively blocks the gap between the cover plate and the base to prevent dust and moisture from entering the sealing cavity, but also improves the aesthetics by hiding.

[0029] In actual operation, the cover plate is a transparent glass plate or acrylic plate for observing the scales and marks built in the sealing cavity, which should all be regarded as specific embodiments of the present invention.

[0030] In actual operation, the knob 2 is attracted to the body 1 by a magnetic attraction component and radially limited. To improve the radial limiting effect on the knob 2, a positioning shaft 7 is provided on the side of the cover plate facing the knob 2. The positioning shaft 7 and the rotating member 5 are coaxially arranged. A limiting hole 6 is provided in the middle of the rear side wall of the knob 2. The limiting hole 6 is sleeved on the positioning shaft 7 and guides the knob 2 to rotate around the axis of the rotating member 5 (as Figure 3 shown), so as to limit the radial offset of the knob 2, which should also be regarded as a specific embodiment of the present invention. The positioning shaft 7 is fixedly connected to the cover plate. The knob 2 is sleeved on the positioning shaft 7 through the limiting hole 6, so that the knob 2 can freely rotate around the positioning shaft 7, ensuring that the knob 2 will not have radial offset when being forced to rotate, and ensuring the precise attraction of the driving member 3 and the transmission member 4.

Claims

1. A magnetic knob switch for a bathroom heater, comprising a body (1) and a knob (2) arranged outside the body (1), characterized in that: The body (1) is provided with a sealed cavity, a rotary encoder (8) is provided in the sealed cavity, a magnetic attraction component is provided between the knob (2) and a rotating member (5) of the rotary encoder (8), the magnetic attraction component comprises a driving member (3) arranged on the knob (2) and a transmission member (4) arranged on the rotating member (5), the driving member (3) and the transmission member (4) are attracted to each other and transmit the circumferential driving force from the knob (2) to the rotating member (5), so that the knob (2) and the rotating member (5) are linked in space.

2. The magnetic knob switch for bathroom heater according to claim 1, characterized in that: The middle portion of the rotating member (5) is rotatably connected to the rotary encoder (8), and the knob (2) is attracted to a transmission member (4) disposed on the rotating member (5) through a driving member (3), so that the knob (2) and the rotating member (5) are disposed concentrically with each other.

3. The magnetic knob switch for bathroom heater according to claim 2 is characterized in that: The corresponding driving member (3) and transmission member (4) are N-level magnets and S-level magnets that can attract each other.

4. The magnetic knob switch for bathroom heater according to claim 3 is characterized in that: The rotating member (5) comprises at least three transmission members (4) equidistantly arranged in the circumferential direction. A driving member (3) corresponding to each of the transmission members (4) is provided on the rear end wall of the knob (2) facing the body (1). The knob (2) is attached to the body (1) and fixedly connected by suction through the corresponding driving member (3) and the transmission member (4).

5. The magnetic knob switch for bathroom heater according to claim 4 is characterized in that: The transmission member (4) is an N-level magnet; or, the transmission member (4) is an S-level magnet; or, the transmission member (4) is an N-level magnet and an S-level magnet that are alternately arranged in the circumferential direction.

6. The magnetic knob switch for bathroom heater according to claim 3, characterized in that: The rotating member (5) is in a cross shape; or, the rotating member (5) is in a Y shape.

7. A magnetic knob switch for a bathroom heater according to any one of claims 1 to 6, characterized in that: The body (1) comprises a base with an assembly groove therein and a cover plate covering the base, wherein the cover plate covers the notch of the assembly groove and encloses to form the sealed cavity.

8. The magnetic knob switch for bathroom heater according to claim 7, characterized in that: The cover plate is provided with a positioning shaft (7) on the side facing the knob (2); the positioning shaft (7) and the rotating member (5) are coaxially arranged with each other; a limiting hole (6) is provided in the middle of the rear side wall of the knob (2); the limiting hole (6) is sleeved on the positioning shaft (7) and guides the knob (2) to rotate around the axis of the rotating member (5) so as to limit the radial deviation of the knob (2).

9. The magnetic knob switch for bathroom heater according to claim 7, characterized in that: The cover plate is a transparent glass plate; or, the cover plate is a transparent acrylic plate.

10. The magnetic knob switch for bathroom heater according to claim 7, characterized in that: A sealing ring is provided at the notch of the assembly groove, and the cover plate is covered on the base and seals and clamps the sealing ring to block the gap between the cover plate and the base.

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