Separating magnetoelectric encoder positioning magnet fixing structure and intelligent cooker

Abstract

The utility model discloses a kind of separated formula magnetoelectric encoder positioning magnet fixing structure and intelligent range, it is related to intelligent range technical field, and wherein, separated formula magnetoelectric encoder positioning magnet fixing structure includes positioning magnet, mounting bracket and printed circuit board assembly, positioning magnet is used to adsorb magnetoelectric encoder;Printed circuit board assembly includes substrate and the magnetic inductor of setting on substrate, mounting bracket includes the first mounting piece and the second mounting piece of interconnection. The utility model embodiment is by using the cooperative limiting effect of recess in the first mounting piece and cover plate, the stable fixation to positioning magnet is realized, by using the detachable connection of second mounting piece and substrate, to realize the connection between positioning magnet and substrate, effectively replace the scheme of traditional adhesive fixation, not only save the use of adhesive and other production accessories, simplify assembly process, reduce manufacturing cost, while also improve production efficiency and product consistency.

Description

Technical Field

[0001] This utility model relates to the field of intelligent stove technology, and in particular to a separate magneto-electric encoder positioning magnet fixing structure and an intelligent stove. Background Technology

[0002] With the rapid development of the smart home and smart cooktop markets, more and more products are adopting separate magneto-electric encoders to achieve precise control and adjustment functions. These encoders convert mechanical displacement into electronic signals through electromagnetic principles, which are then recognized by ICs (Integrated Circuits) to execute corresponding control operations. However, in traditional structures, the positioning magnets mainly rely on adhesive bonding for fixation, which faces problems such as complex assembly processes and inconvenient after-sales maintenance in high-temperature environments. Utility Model Content

[0003] The main purpose of this invention is to propose a separate magnet fixing structure for a magneto-electric encoder, which aims to solve the problem of simplifying the assembly process and improving maintenance convenience.

[0004] To achieve the above objectives, this utility model proposes a separate magnet fixing structure for a magnetic encoder, the separate magnet fixing structure for a magnetic encoder comprising:

[0005] A positioning magnet, used to attract a magneto-electric encoder;

[0006] A printed circuit board assembly, the printed circuit board assembly including a substrate and a magnetic sensor disposed on the substrate, the magnetic sensor being capable of sensing magnetic field changes associated with the magneto-electric encoder;

[0007] The mounting bracket includes a first mounting member and a second mounting member connected to each other. The first mounting member includes a bracket and a cover plate. The bracket is connected to the second mounting member. The bracket has a groove on the side away from the second mounting member for accommodating at least a portion of the structure of the positioning magnet. The cover plate is detachably connected to the bracket to restrict the positioning magnet from separating from the groove. The second mounting member is detachably connected to the substrate.

[0008] In one embodiment, the cover plate engages with the bracket to allow the cover plate to abut against the positioning magnet, thereby preventing the positioning magnet from separating from the groove.

[0009] In one embodiment, the positioning magnet includes a first end and a second end disposed opposite to each other along the height direction. The height of the positioning magnet is greater than the depth of the groove, so that the first end can abut against the bottom wall of the groove, and the second end can extend out of the groove and abut against the cover plate.

[0010] And / or,

[0011] The positioning magnet includes a third end and a fourth end arranged opposite to each other along the length direction, and both the third end and the fourth end abut against the side wall of the groove;

[0012] And / or,

[0013] The positioning magnet includes a fifth end and a sixth end that are arranged opposite each other along the width direction, and both the fifth end and the sixth end abut against the sidewall of the groove.

[0014] In one embodiment, the number of positioning magnets is at least one.

[0015] In one embodiment, there are multiple positioning magnets, which are arranged at intervals along the circumference of the bracket, and the number of grooves is the same as the number of positioning magnets and they are set in a one-to-one correspondence.

[0016] In one embodiment, the magnetic sensor includes a Hall element, the bracket is further provided with a first through hole, and the cover plate is provided with a second through hole opposite to the first through hole, so that the Hall element can sense the magnetic field changes related to the magneto-electric encoder transmitted through the first through hole and the second through hole.

[0017] In one embodiment, the cover plate includes a plate body and a snap-fit ​​portion. The snap-fit ​​portion extends in a direction close to the bracket and has a second through hole. The wall of the second through hole extends in a direction close to the center to form a slot. The wall of the first through hole extends in a direction close to the center to form a protrusion. The protrusion engages with the slot to allow the plate body to abut against the positioning magnet, thereby preventing the positioning magnet from separating from the groove.

[0018] In one embodiment, the substrate is provided with a mounting hole for the second mounting member to pass through. The second mounting member includes a connecting portion and a limiting portion that are connected to each other. The connecting portion is connected to the first mounting member, and one end of the limiting portion near the connecting portion is used to abut against the substrate to restrict the substrate from moving away from the first mounting member.

[0019] In one embodiment, there are multiple second mounting members, which are arranged circumferentially along the first mounting member. The number of mounting holes is the same as the number of second mounting members and they are set in a one-to-one correspondence.

[0020] Furthermore, this utility model also proposes an intelligent stove, which includes a magneto-electric encoder, a housing, a knob, and a separate magneto-electric encoder positioning magnet fixing structure as described in any of the above technical solutions. The housing has an internal mounting cavity, and the separate magneto-electric encoder positioning magnet fixing structure is located inside the mounting cavity. The base plate is connected to the inner wall of the mounting cavity. The knob contains the magneto-electric encoder, which can be attracted to the outer wall of the housing by the positioning magnet.

[0021] In this embodiment of the utility model, the main function of the positioning magnet is to attract the magnetic encoder through magnetic attraction, thereby achieving a stable connection between the magnetic encoder and the housing. The magnetic sensor is used to sense the magnetic field changes related to the rotation of the magnetic encoder as the knob rotates, and converts them into electrical signals for the control system to identify the knob position, thereby ensuring the accuracy of control operation. At the same time, the base plate is also used to connect with the housing, thereby realizing the overall installation and fixation of the separate magnetic encoder positioning magnet fixing structure. The mounting bracket, as a connecting bridge, plays a supporting and positioning role. It consists of a first mounting component and a second mounting component. The first mounting component achieves stable fixation of the positioning magnet through the cooperative limiting effect of the groove and the cover plate, effectively preventing it from loosening or falling off during use, improving the reliability and safety of the overall structure. The second mounting component is detachably connected to the base plate, thereby ensuring the stable and reliable relative position of the positioning magnet and the printed circuit board assembly in space. In addition, the detachable design of the cover plate and the bracket further improves the convenience of after-sales maintenance, making the replacement of the positioning magnet simpler and more efficient. The positioning magnet fixing structure of this split magneto-electric encoder adopts a detachable connection to realize the connection between various components. It is simple to operate, easy to disassemble and replace, and has a reasonable structural layout and strong adaptability. It improves the stability and durability of the product in extreme environments such as high temperature. It is particularly suitable for various smart home appliances, especially showing good performance and application prospects in complex working environments such as high temperature and high humidity. This embodiment of the invention achieves stable fixation of the positioning magnet by utilizing the synergistic limiting effect of the groove in the first mounting component and the cover plate. The second mounting component is detachably connected to the substrate, thus achieving connection between the positioning magnet and the substrate. This effectively replaces the traditional adhesive fixing method, eliminating the use of production auxiliary materials such as glue, simplifying the assembly process, reducing manufacturing costs, and improving production efficiency and product consistency. Furthermore, the detachable design of the cover plate and bracket facilitates disassembly and replacement. When the positioning magnet or printed circuit board assembly malfunctions, it can be quickly replaced, improving maintenance convenience and after-sales service efficiency. In addition, because it does not rely on adhesive materials that may fail at high temperatures, this structure maintains good stability and reliability even in extreme high-temperature environments such as multi-burner induction cookers, significantly enhancing the product's environmental adaptability. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of an embodiment of the positioning magnet fixing structure of the separate magneto-electric encoder of this utility model;

[0024] Figure 2 This is a schematic diagram of another perspective of an embodiment of the positioning magnet fixing structure of the split magneto-electric encoder of this utility model.

[0025] Figure 3 A schematic diagram of a bracket for fixing the positioning magnet of the split magnet encoder according to this utility model;

[0026] Figure 4 Another perspective structural schematic diagram of an embodiment of the bracket for fixing the positioning magnet of the split magnet encoder of this utility model;

[0027] Figure 5 This is another schematic diagram of the bracket for fixing the positioning magnet of the split magnet encoder of this utility model.

[0028] Figure 6 This is a schematic diagram of the cover plate of an embodiment of the positioning magnet fixing structure of the split magneto-electric encoder of this utility model.

[0029] Figure 7 This is a schematic diagram of another perspective of an embodiment of the cover plate of the positioning magnet fixing structure of the split magnet encoder of this utility model.

[0030] Explanation of icon numbers:

[0031] 100. Separate magnet-electric encoder positioning magnet fixing structure; 1. Positioning magnet; 11. First end; 12. Second end; 13. Third end; 14. Fourth end; 15. Fifth end; 16. Sixth end; 2. Mounting bracket; 21. First mounting component; 211. Bracket; 2111. Groove; 2112. First through hole; 2113. Protrusion; 212. Cover plate; 2121. Board body; 2122. Snap-fit ​​part; 21221. Second through hole; 21222. Slot; 22. Second mounting component; 221. Connecting part; 222. Limiting part; 3. Printed circuit board assembly; 31. Magnetic sensor; 311. Hall element; 32. Substrate; 321. Mounting hole.

[0032] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0034] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, and back), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0035] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0036] With the rapid development of the smart home and smart cooktop markets, more and more products are adopting separate magneto-electric encoders to achieve precise control and adjustment functions. These encoders convert mechanical displacement into electronic signals through electromagnetic principles, which are then recognized by the IC to execute corresponding control operations. However, in traditional structures, the positioning magnets mainly rely on adhesive bonding for fixation, which faces problems such as complex assembly processes and inconvenient after-sales maintenance in high-temperature environments.

[0037] After careful research, the applicant discovered that currently, positioning magnets are mostly fixed using adhesives. Specific methods include attaching them to the underside of glass or directly to the PCBA (Printed Circuit Board Assembly). While this method meets the needs of ordinary environments to some extent, it faces numerous challenges under special conditions such as high temperatures. Especially in applications requiring high temperatures of 85℃, such as multi-burner induction cookers, the adhesive used must possess high-temperature resistance. This not only increases the difficulty and cost of material selection but also complicates the assembly process and reduces production efficiency. Furthermore, once the positioning magnet is damaged or needs replacement, the adhesive fixation method makes the replacement process extremely difficult, time-consuming, and labor-intensive, significantly impacting the quality of after-sales service and user experience.

[0038] The main purpose of this invention is to propose a separate magneto-electric encoder positioning magnet fixing structure to solve the problem of how to simplify the assembly process and improve maintenance convenience.

[0039] Please see Figure 1 and Figure 2 In one embodiment of this utility model, the separate magnetoelectric encoder positioning magnet fixing structure 100 includes a positioning magnet 1, a mounting bracket 2, and a printed circuit board assembly 3. The positioning magnet 1 is used to attract the magnetoelectric encoder (not shown in the figure). The printed circuit board assembly 3 includes a substrate 32 and a magnetic sensor 31 disposed on the substrate 32. The magnetic sensor 31 can sense changes in the magnetic field related to the magnetoelectric encoder. The mounting bracket 2 includes a first mounting member 21 and a second mounting member 22 connected to each other. The first mounting member 21 includes a bracket 211 and a cover plate 212. The bracket 211 is connected to the second mounting member 22. A groove 2111 for accommodating at least a portion of the structure of the positioning magnet 1 is provided on the side of the bracket 211 away from the second mounting member 22. The cover plate 212 is detachably connected to the bracket 211 to restrict the separation of the positioning magnet 1 from the groove 2111. The second mounting member 22 is detachably connected to the substrate 32.

[0040] In this embodiment of the utility model, the main function of the positioning magnet 1 is to attract the magnetic encoder with magnetic attraction, thereby achieving a stable connection between the magnetic encoder and the housing (not shown in the figure); the magnetic sensor 31 is used to sense the magnetic field change related to the rotation of the magnetic encoder with the knob (not shown in the figure) and convert it into an electrical signal for the control system to identify the knob position, thereby ensuring the accuracy of the control operation. At the same time, the base plate 32 is also used to connect with the housing, thereby realizing the overall installation and fixation of the separate magnetic encoder positioning magnet fixing structure 100. Mounting bracket 2, acting as a connecting bridge, provides support and positioning. It consists of a first mounting component 21 and a second mounting component 22. The first mounting component 21, through the coordinated limiting effect of the groove 2111 and the cover plate 212, stably fixes the positioning magnet 1, effectively preventing loosening or detachment during use and improving the overall structural reliability and safety. The second mounting component 22 is detachably connected to the substrate 32, ensuring the stable and reliable relative position of the positioning magnet 1 and the printed circuit board assembly 3 in space. Furthermore, the detachable design of the cover plate 212 and the bracket 211 further enhances the convenience of after-sales maintenance, making the replacement of the positioning magnet 1 simpler and more efficient. This separate magneto-electric encoder positioning magnet fixing structure 100 uses a detachable connection method to connect the various components, making operation simple, easy to disassemble and replace, with a reasonable structural layout and strong adaptability. It improves the stability and durability of the product in extreme environments such as high temperatures, making it particularly suitable for various smart home appliances, especially demonstrating good performance and application prospects in complex working environments such as high temperature and high humidity. It should be noted that the magnetic sensor 31 can be an existing magnetic sensor; the magnetic encoder can also be an existing magnetic encoder. The magnetic sensor 31 can detect the magnetic field changes related to the magnetic encoder through existing detection methods, and identify the position of the knob based on this.

[0041] The technical solution of this utility model achieves stable fixation of the positioning magnet 1 by using the cooperative limiting effect of the groove 2111 in the first mounting part 21 and the cover plate 212. By using the second mounting part 22 to detachably connect with the substrate 32, the connection between the positioning magnet 1 and the substrate 32 is realized, effectively replacing the traditional adhesive fixing solution. This not only saves the use of production auxiliary materials such as glue, simplifies the assembly process, and reduces manufacturing costs, but also improves production efficiency and product consistency. Moreover, the detachable design of the cover plate 212 and the bracket 211 makes it easier to disassemble and replace. When the positioning magnet 1 or the printed circuit board assembly 3 fails, it can be quickly replaced, improving maintenance convenience and after-sales service efficiency. In addition, since it does not rely on glue materials that may fail at high temperatures, this structure can still maintain good stability and reliability in high-temperature extreme environments such as multi-burner induction cookers, significantly enhancing the environmental adaptability of the product.

[0042] Please see Figures 1 to 3 In one embodiment, the cover plate 212 and the bracket 211 are snapped together so that the cover plate 212 can abut against the positioning magnet 1, thereby preventing the positioning magnet 1 from separating from the groove 2111. Specifically, this structure applies stable axial pressure to the positioning magnet 1 through the cover plate 212, achieving stable positioning of it within the groove 2111, effectively preventing it from shifting or falling off due to vibration or external force during use, significantly improving the stability and reliability of the overall structure. Simultaneously, the snap-fit ​​connection between the cover plate 212 and the bracket 211 simplifies the assembly process, improves product consistency and assembly efficiency, and is suitable for automated production. This structure eliminates the need for glue or other auxiliary fixing materials, reducing manufacturing costs and enhancing the product's adaptability to complex environments such as high temperatures and vibrations. Furthermore, the limiting function of the cover plate 212 ensures that the positioning magnet 1 is always in the preset position, providing a stable magnetic field reference for the magneto-electric encoder and ensuring the accuracy of knob position detection. The overall structure is reasonably and compactly designed, highly adaptable, and has good market application prospects.

[0043] According to one embodiment of the present invention, the cover plate 212 is screwed or magnetically connected to the bracket 211 so that the cover plate 212 can abut against the positioning magnet 1 to prevent the positioning magnet 1 from separating from the groove 2111.

[0044] Please see Figure 1 and Figure 2In one embodiment, the positioning magnet 1 includes a first end 11 and a second end 12 arranged opposite each other along the height direction. The height of the positioning magnet 1 is greater than the depth of the groove 2111, so that the first end 11 can abut against the bottom wall of the groove 2111, and the second end 12 can extend out of the groove 2111 and abut against the cover plate 212; and / or, the positioning magnet 1 includes a third end 13 and a fourth end 14 arranged opposite each other along the length direction, and both the third end 13 and the fourth end 14 abut against the side wall of the groove 2111; and / or, the positioning magnet 1 includes a fifth end 15 and a sixth end 16 arranged opposite each other along the width direction, and both the fifth end 15 and the sixth end 16 abut against the side wall of the groove 2111. Specifically, this design has good adaptability and can flexibly select the combination of limiting directions according to actual needs. It is suitable for basic function configurations and also supports the expansion of higher precision or more complex application scenarios, further enhancing the practicality and market promotion value of this utility model. In this embodiment, the first end 11 of the positioning magnet 1 abuts against the bottom wall of the groove 2111, the second end 12 abuts against the cover plate 212, and the third end 13, the fourth end 14, the fifth end 15, and the sixth end 16 abut against the corresponding side walls of the groove 2111. By limiting the positioning magnet 1 in three dimensions of height, length, and width, it is more securely installed in the groove 2111, effectively preventing the positioning magnet 1 from shifting or falling off during assembly or use, avoiding noise, and significantly improving the stability and reliability of the overall structure. Moreover, this limiting method adopts a purely mechanical snap-fit ​​structure, which does not require the use of glue or other auxiliary materials, which not only simplifies the assembly process but also improves production efficiency and enhances the product's adaptability to complex environments such as high temperature and high humidity.

[0045] According to one embodiment of the present invention, the height of the positioning magnet 1 is greater than the depth of the groove 2111, so that the first end 11 can abut against the bottom wall of the groove 2111, and the second end 12 can extend out of the groove 2111 and abut against the cover plate 212. By pressing the cover plate 212, the positioning magnet 1 is prevented from shifting or falling off during assembly or use.

[0046] According to another embodiment of the present invention, the height of the positioning magnet 1 is greater than the depth of the groove 2111, so that the first end 11 can abut against the bottom wall of the groove 2111, the second end 12 can extend out of the groove 2111 and abut against the cover plate 212, and the third end 13 and the fourth end 14 or the fifth end 15 and the sixth end 16 abut against the side wall of the groove 2111. Through the combined action of the cover plate 212 and the side wall of the groove 2111, the positioning magnet 1 is prevented from shifting or falling off during assembly or use.

[0047] According to another embodiment of the present invention, the height of the positioning magnet 1 does not exceed the depth of the groove 2111, so that the positioning magnet 1 can be completely located in the groove 2111, and the third end 13, the fourth end 14, the fifth end 15 and the sixth end 16 of the positioning magnet 1 can respectively abut against the corresponding side wall on the groove 2111, thereby preventing the positioning magnet 1 from shifting or falling off during assembly or use.

[0048] According to another embodiment of the present invention, the height of the positioning magnet 1 does not exceed the depth of the groove 2111, so that the positioning magnet 1 can be completely located in the groove 2111, and the third end 13 and the fourth end 14 or the fifth end 15 and the sixth end 16 of the positioning magnet 1 can respectively abut against the corresponding side wall on the groove 2111, thereby preventing the positioning magnet 1 from shifting or falling off during assembly or use.

[0049] Please see Figure 1 In one embodiment, the number of positioning magnets 1 is at least one. Specifically, this arrangement can meet the basic functional requirement of a stable connection between the magneto-electric encoder and the housing through magnetic attraction. Even with only one positioning magnet 1, sufficient magnetic attraction force can be provided to ensure the normal operation of the magneto-electric encoder. In this embodiment, the number of positioning magnets 1 can be flexibly adjusted according to actual application requirements, exhibiting good adaptability and scalability. It can be used for low-cost, low-complexity product configurations and provides a reliable technical basis for subsequent improvement schemes that use multiple positioning magnets 1 to improve positioning accuracy or enhance connection stability, further enhancing the practicality and market adaptability of this utility model.

[0050] Please see Figure 1 and Figure 3 In one embodiment, there are multiple positioning magnets 1, which are arranged at intervals along the circumference of the bracket 211. The number of grooves 2111 corresponds to the number of positioning magnets 1 and is set one-to-one. Specifically, the multiple positioning magnets 1 can form a uniform magnetic attraction force in the circumferential direction, which enhances the connection strength between the magneto-electric encoder and the housing, prevents loosening or displacement caused by uneven force at a single point, and significantly improves the stability and operation feel. The one-to-one correspondence between the grooves 2111 and the positioning magnets 1 not only ensures the accurate positioning of each positioning magnet 1, but also improves assembly efficiency and product consistency. In addition, in this embodiment, the positioning magnets 1 are block-shaped positioning magnets 1. Compared with traditional ring magnets, multiple block-shaped positioning magnets 1 are less prone to crack propagation when subjected to external forces, and have stronger anti-fracture ability, thereby improving the structural strength and service life of the product. In this embodiment, the design has good structural adaptability and scalability. The number and arrangement of magnets can be flexibly adjusted according to different application requirements. It is suitable for basic function configurations and can also meet the needs of higher precision control, further enhancing the practicality and market promotion value of this utility model.

[0051] According to one embodiment of the present invention, the number of positioning magnets 1 is one. The positioning magnet 1 can be a ring-shaped positioning magnet 1 or a block-shaped positioning magnet 1.

[0052] Please see Figure 1 In one embodiment, the magnetic sensor 31 includes a Hall element 311, and the bracket 211 is further provided with a first through hole 2112. The cover plate 212 is provided with a second through hole 21221 opposite to the first through hole 2112. ， This allows the Hall element 311 to sense changes in the magnetic field related to the magneto-electric encoder transmitted via the first through-hole 2112 and the second through-hole 21221. Specifically, by setting the first through-hole 2112 and the second through-hole 21221, an efficient transmission path of the magnetic field from the magneto-electric encoder to the Hall element 311 is achieved, enabling the Hall element 311 to accurately capture the changes in the magnetic field generated during knob rotation, thereby achieving high-precision detection of the knob's position or angle. The corresponding arrangement of the first through-hole 2112 and the second through-hole 21221 not only improves the sensitivity and accuracy of magnetic field sensing but also plays a role in shielding external interference to a certain extent, enhancing the stability of signal acquisition. At the same time, this structure has a compact layout and high space utilization, which is conducive to achieving a thinner and more modular design of the product. Furthermore, the Hall element 311 is integrated on the substrate 32, and the through-hole structure enables standardized installation, facilitating automated production and subsequent maintenance. In addition, in this embodiment, the Hall element 311 can use existing Hall elements, and the Hall element 311 can also detect changes in the magnetic field related to the magneto-electric encoder through existing detection methods, and identify the position of the knob based on this.

[0053] Please see Figure 1 , Figure 6 and Figure 7In one embodiment, the cover plate 212 includes a plate body 2121 and a snap-fit ​​portion 2122. The snap-fit ​​portion 2122 extends along the direction close to the bracket 211. A second through hole 21221 is provided on the snap-fit ​​portion 21222. The wall of the second through hole 21221 extends towards the center to form a slot 21222. The wall of the first through hole 2112 extends towards the center to form a protrusion 2113. The protrusion 2113 engages with the slot 21222 to allow the plate body 2121 to abut against the positioning magnet 1, thereby preventing the positioning magnet 1 from separating from the groove 2111. Specifically, the snap-fit ​​design of the protrusion 2113 and the slot 21222 enables automatic alignment and locking during installation, achieving a stable fixation of the positioning magnet 1, improving the reliability and assembly consistency of the overall structure, increasing assembly efficiency, and making it suitable for automated production processes. Meanwhile, the snap-fit ​​structure adopts a purely mechanical connection method, eliminating the need for glue or other auxiliary fixing materials, simplifying the production process and reducing manufacturing costs. Furthermore, the snap-fit ​​part 2122 is inserted into the first through hole 2112 on the bracket 211 for assembly, without occupying additional space during installation, which helps to achieve miniaturization and modular design of the overall structure, further improving space utilization. In this embodiment, to improve the connection strength and stability between the cover plate 212 and the bracket 211 and prevent overall detachment due to single-point failure, multiple protrusions 2113 are provided, spaced apart along the circumference of the bracket 211. The number of slots 21222 is consistent with the number of protrusions 2113 and is set in a one-to-one correspondence. By setting multiple protrusions 2113 and slots 21222, a multi-point snap-fit ​​connection is formed, making the structural stress more balanced, avoiding local stress concentration, and reducing the risk of structural deformation caused by external forces or thermal stress. The number of protrusions 2113 and slots 21222 can be selected according to actual needs; this embodiment does not limit this.

[0054] Please see Figure 1 , Figure 2 , Figure 4 and Figure 5In one embodiment, the substrate 32 is provided with a mounting hole 321 for the second mounting member 22 to pass through. The second mounting member 22 includes a connecting portion 221 and a limiting portion 222 connected to each other. The connecting portion 221 is connected to the first mounting member 21, and the end of the limiting portion 222 near the connecting portion 221 is used to abut against the substrate 32 to restrict the substrate 32 from moving away from the first mounting member 21. Specifically, during assembly, the second mounting member 22 can be inserted into the mounting hole 321 on the substrate 32 so that the ends of the first mounting member 21 and the limiting portion 222 near the connecting portion 221 can abut against the opposite sides of the substrate 32. The limiting portion 222 provides a stable axial constraint to the substrate 32, effectively preventing it from moving away from the first mounting member 21 due to vibration or external force during use, significantly improving the stability and reliability of the overall structure. At the same time, this limiting method adopts a purely mechanical structure, eliminating the need for glue or other auxiliary fixing materials, simplifying the production process, and enhancing the product's adaptability to complex environments such as high temperature and high humidity. In addition, the design of the limiting part 222 improves the consistency and accuracy of the assembly of the substrate 32, and facilitates disassembly and replacement, thus enhancing the convenience of after-sales maintenance.

[0055] According to one embodiment of the present invention, the substrate 32 and the second mounting member 22 are detachably connected by screwing or magnetic connection.

[0056] Please see Figure 4 and Figure 5 In one embodiment, there are multiple second mounting members 22, arranged circumferentially along the first mounting member 21. The number of mounting holes 321 corresponds to the number of second mounting members 22. Specifically, the substrate 32 is securely fixed by multi-point limiting, effectively preventing it from shifting or tilting due to vibration or external force during use, significantly improving the stability and reliability of the overall structure. Simultaneously, the uniform circumferential distribution of the multiple second mounting members 22 ensures more balanced stress distribution, avoids localized stress concentration, and reduces the risk of structural deformation or damage. The one-to-one correspondence between the mounting holes 321 and the second mounting members 22 not only improves assembly accuracy and product consistency but also facilitates automated production and improves manufacturing efficiency. Furthermore, the second mounting members 22 and the substrate 32 are detachable, facilitating after-sales maintenance and replacement, and enhancing service convenience. In this embodiment, the design has good structural adaptability and scalability. The number of the second mounting component 22 and the mounting hole 321 can be flexibly adjusted according to different application requirements. It is suitable for basic function configuration and can also meet the needs of higher precision control, further enhancing the practicality and market promotion value of this utility model.

[0057] This utility model also proposes an intelligent stove (not shown in the figure), which includes a magneto-electric encoder, a housing, a knob, and a separate magneto-electric encoder positioning magnet fixing structure 100. The specific structure of the separate magneto-electric encoder positioning magnet fixing structure 100 is as described in the above embodiments. Since this intelligent stove adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described in detail here. The housing has an internal mounting cavity (not shown in the figure), and the separate magneto-electric encoder positioning magnet fixing structure 100 is located inside the mounting cavity. The base plate 32 is connected to the inner wall of the mounting cavity. The knob contains a magneto-electric encoder, which can be attached to the outer wall of the housing by the positioning magnet 1. Specifically, in this embodiment, the base plate 32 can be detachably connected to the inner wall of the mounting cavity by screwing or snapping, further improving the convenience of after-sales maintenance and supporting modular production and functional expansion. The knob houses a magneto-electric encoder, which magnetically connects to the outer wall of the housing via a positioning magnet 1, ensuring a secure connection and preventing the knob from loosening or falling off during use. Simultaneously, a magnetic sensor 31 detects changes in the magnetic field of the encoder, enabling high-precision position detection of the knob. The components of the smart cooktop are connected using snap-fit ​​joints, eliminating the need for glue, simplifying the manufacturing process, reducing costs, and improving assembly efficiency and product consistency. Furthermore, this smart cooktop maintains excellent stability and functionality even under complex environments such as high temperatures and vibrations, enhancing its environmental adaptability.

[0058] The above description is merely an exemplary embodiment of the present utility model and does not limit the scope of protection of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the scope of protection of the present utility model.

Claims

1. A separate magnet fixing structure for a magnetoelectric encoder, characterized in that, The positioning magnet fixing structure of the split magneto-electric encoder includes: A positioning magnet, used to attract a magneto-electric encoder; A printed circuit board assembly, the printed circuit board assembly including a substrate and a magnetic sensor disposed on the substrate, the magnetic sensor being capable of sensing magnetic field changes associated with the magneto-electric encoder; The mounting bracket includes a first mounting member and a second mounting member connected to each other. The first mounting member includes a bracket and a cover plate. The bracket is connected to the second mounting member. The bracket has a groove on the side away from the second mounting member for accommodating at least a portion of the structure of the positioning magnet. The cover plate is detachably connected to the bracket to restrict the positioning magnet from separating from the groove. The second mounting member is detachably connected to the substrate.

2. The separate magnet fixing structure for the magnet encoder as described in claim 1, characterized in that, The cover plate engages with the bracket to allow the cover plate to abut against the positioning magnet, thereby preventing the positioning magnet from separating from the groove.

3. The positioning magnet fixing structure of the split magneto-electric encoder as described in claim 2, characterized in that, The positioning magnet includes a first end and a second end that are arranged opposite each other along the height direction. The height of the positioning magnet is greater than the depth of the groove, so that the first end can abut against the bottom wall of the groove, and the second end can extend out of the groove and abut against the cover plate. And / or, The positioning magnet includes a third end and a fourth end arranged opposite to each other along the length direction, and both the third end and the fourth end abut against the side wall of the groove; And / or, The positioning magnet includes a fifth end and a sixth end that are arranged opposite each other along the width direction, and both the fifth end and the sixth end abut against the sidewall of the groove.

4. The separate magnet fixing structure for the magnetoelectric encoder as described in claim 2, characterized in that, The number of positioning magnets is at least one.

5. The separate magnet fixing structure for the magnetoelectric encoder as described in claim 4, characterized in that, The number of positioning magnets is multiple, and the multiple positioning magnets are arranged at intervals along the circumference of the bracket. The number of grooves is the same as the number of positioning magnets and they are set in a one-to-one correspondence.

6. The positioning magnet fixing structure of the split magneto-electric encoder as described in claim 1, characterized in that, The magnetic sensor includes a Hall element, and the bracket is also provided with a first through hole. The cover plate is provided with a second through hole opposite to the first through hole, so that the Hall element can sense the magnetic field changes related to the magneto-electric encoder transmitted through the first through hole and the second through hole.

7. The separate magnet fixing structure for the magnetoelectric encoder as described in claim 6, characterized in that, The cover plate includes a plate body and a snap-fit ​​portion. The snap-fit ​​portion extends in a direction close to the bracket and has a second through hole. The wall of the second through hole extends in a direction close to the center to form a slot. The wall of the first through hole extends in a direction close to the center to form a protrusion. The protrusion engages with the slot to allow the plate body to abut against the positioning magnet, thereby preventing the positioning magnet from separating from the groove.

8. The separate magnet fixing structure for the magneto-electric encoder as described in any one of claims 1 to 7, characterized in that, The substrate has mounting holes through which the second mounting member passes. The second mounting member includes a connecting portion and a limiting portion that are connected to each other. The connecting portion is connected to the first mounting member. One end of the limiting portion near the connecting portion is used to abut against the substrate to restrict the substrate from moving away from the first mounting member.

9. The positioning magnet fixing structure of the split magneto-electric encoder as described in claim 8, characterized in that, The number of the second mounting components is multiple, and the multiple second mounting components are arranged circumferentially along the first mounting component. The number of mounting holes is the same as the number of the second mounting components and is set in a one-to-one correspondence.

10. A smart stove, characterized in that, The smart stove includes a magneto-electric encoder, a housing, a knob, and a separate magneto-electric encoder positioning magnet fixing structure as described in any one of claims 1 to 9. The housing has an internal mounting cavity, the separate magneto-electric encoder positioning magnet fixing structure is located in the mounting cavity, the base plate is connected to the inner wall of the mounting cavity, the knob is provided with the magneto-electric encoder, and the magneto-electric encoder can be attracted to the outer wall of the housing by the positioning magnet.

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