Multi-interface safety electric heating cup
By designing an interlocking mechanism of baffle and micro switch in the electric heating cup, the problem of accidental insertion risk in traditional electric heating cups is solved, thereby improving safety and reliability, and enhancing protection and convenience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINHUA CITY JUJIE ELECTRIC MACHINE CO LTD
- Filing Date
- 2025-07-28
- Publication Date
- 2026-05-05
AI Technical Summary
Traditional electric kettles are equipped with both a power interface and a charging interface, which poses a risk of mis-plugging, leading to safety hazards such as circuit overload and short circuits, and lacks effective physical protection.
Design a multi-interface safety electric heating cup. Employ a baffle mechanism to ensure that the power interface and charging interface can only be connected to one of them. Switching between the sliding or rotating baffles, combined with a micro switch, achieves circuit interlocking and provides physical protection.
It completely eliminates the possibility of both interfaces being connected to power at the same time, improves safety and reliability, simplifies user operation, enhances dust and splash resistance, extends interface lifespan, and improves cross-scenario applicability.
Smart Images

Figure CN224193251U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of electric heating cup technology, and in particular to a safe electric heating cup with multiple power supply interfaces. Background Technology
[0002] Electric kettles are widely used in homes, offices, and travel due to their portability and heating function. Traditional electric kettles typically only have a single type of power interface (such as a standard AC plug) for connecting to mains power for heating. With the popularization of portable electronic devices (such as power banks) and the development of USB power supply technology, some electric kettles have begun to add low-voltage DC charging interfaces (such as USB Type-C interfaces), enabling them to use power banks, car chargers, or adapters with USB output ports for heating. This improves the flexibility and convenience of use, making them particularly suitable for environments without fixed mains power outlets.
[0003] However, electric kettles equipped with both a power interface (usually an AC input interface) and a charging interface (usually a low-voltage DC input interface) pose a risk of misconnection and safety hazards: If a user mistakenly connects both interfaces to a power source simultaneously (such as connecting an AC adapter and a power bank in parallel), it may cause circuit overload, short circuit, or even battery thermal runaway, posing a significant safety risk. Utility Model Content
[0004] In view of this, this application provides a multi-interface safety electric heating cup, which can avoid the possibility of two interfaces being connected to the power supply at the same time, effectively prevent mis-insertion, and provide physical protection for unused interfaces, thereby improving the safety and reliability of the product and simplifying user operation.
[0005] In a first aspect, this application provides a multi-interface safety electric heating cup, including a cup body, the cup body being provided with a power interface and a charging interface, and a baffle being movably connected to the cup body, the baffle being switchable between a first position and a second position;
[0006] In the first position, the baffle at least partially covers the power interface and exposes the charging interface; in the second position, the baffle at least partially covers the charging interface and exposes the power interface, thereby enabling an external power source to connect to either the power interface or the charging interface selectively.
[0007] By adopting the above technical solution, the baffle uses a physical interlocking mechanism to forcibly limit the exposure state of the power interface and the charging interface: when the baffle is in the first position, the power interface is completely blocked, and the charging interface is exposed and usable; when the baffle is in the second position, the charging interface is completely blocked, and the power interface is exposed and usable. This design fundamentally eliminates the possibility of both interfaces being connected to power simultaneously, eliminates the risk of mis-plugging (such as connecting AC power to a low-voltage charging port), and automatically provides physical protection against dust and liquid splashes for unused interfaces.
[0008] In some implementations, the baffle is slidably connected to the cup body.
[0009] By adopting the above technical solution, the baffle achieves position switching through linear sliding. The structure is simple, reliable and low-cost. Users can complete the operation with one hand (such as pushing and pulling longitudinally). The sliding trajectory is designed as a straight channel to avoid the baffle from detaching or misaligning, thus improving durability.
[0010] In some implementations, the baffle is rotatably connected to the cup body, power interface, or charging interface.
[0011] By adopting the above technical solution, the baffle switches positions through rotation, the rotating shaft structure saves space (especially suitable for designs with narrow side walls of the cup), and the rotation action is ergonomic and intuitive to operate (such as flip-top rotation).
[0012] In some implementations, in the first position and / or the second position, the baffle engages with the cup body to make the baffle in a relatively stable state.
[0013] By adopting the above technical solution, the baffle is fixed in position by a snap-fit structure (such as a slot, buckle, or magnetic attraction), providing a clear sense of positioning and tactile feedback, preventing the baffle from shifting due to vibration or accidental touch, ensuring the stability of the interface obstruction state, and preventing safety risks caused by accidental exposure.
[0014] In some implementations, the pivot of the baffle is located between the power interface and the charging interface.
[0015] By adopting the above technical solution, the centrally located shaft layout can shorten the rotation radius of the baffle, allowing it to cover the target interface with minimal stroke, while balancing the force on the baffle, extending the life of the shaft, and avoiding unilateral wear.
[0016] In some implementations, the axis of rotation of the baffle is perpendicular to the insertion direction of the power interface and / or charging interface.
[0017] By adopting the above technical solution, when the axis of rotation is perpendicular to the insertion direction, the baffle rotates and covers the surface of the cup body, avoiding protruding structures to maintain a flat appearance. The baffle can also completely fit the interface surface, achieving tight and seamless shielding protection.
[0018] In some implementations, the axis of rotation of the baffle is parallel to the insertion direction of the power interface and / or charging interface.
[0019] By adopting the above technical solution, when the axis of the rotating shaft is parallel to the insertion direction, the baffle moves in a "side-flipping" manner, which is suitable for the compact layout of the interface arranged longitudinally, avoids occupying the side space of the interface, and facilitates plug insertion and removal operations.
[0020] In some implementations, the charging interface is one or more of the following: USB, Type-C, Mini-B, Micro-B, or magnetic interface.
[0021] By adopting the above technical solutions, the charging interface is compatible with mainstream types (such as Type-C and magnetic charging), supports a variety of mobile power devices (such as mobile phone power banks and car adapters), expands outdoor / in-vehicle usage scenarios, and eliminates the need for users to use additional adapters, significantly improving convenience and compatibility.
[0022] In some implementations, the cup body is equipped with a micro switch, which automatically turns on the circuit of the other interface when the baffle blocks either interface.
[0023] By adopting the above technical solution, the baffle triggers a microswitch to control the circuit's on / off state: when the power interface is blocked, it automatically disconnects the mains circuit and connects the charging interface circuit; when the charging interface is blocked, it automatically disconnects the charging circuit and connects the mains circuit. This achieves dual protection of mechanical blocking and electrical disconnection, completely eliminating the risk of accidental circuit connection.
[0024] In some implementations, at least one independently operable interface cover is also included, and there are at least two charging interfaces. Each interface cover is movably connected to the cup body or a corresponding charging interface for selectively covering or exposing its corresponding charging interface.
[0025] By adopting the above technical solution, an independently operable charging interface cover is added: the main cover is responsible for the mutual exclusion switching between the power interface and the charging interface group, while the independent cover manages the selective use of multiple charging interfaces (such as exposing only the Type-C port). This expands the flexibility and neatness of multiple charging interfaces while ensuring core safety mechanisms.
[0026] In summary, this application has at least one of the following beneficial technical effects:
[0027] 1. Zero-misoperation safety: The physical shielding of the baffle and the circuit cut-off of the micro switch form a double interlock, eliminating the possibility of both interfaces being connected to the power supply at the same time, fundamentally eliminating the risks of short circuits and overloads, and the safety level exceeds that of existing single-interface or open multi-interface products.
[0028] 2. Full-scene compatibility: Multiple types of interfaces are managed in a unified manner through sliding / rotating baffles, which are compatible with mainstream standards such as AC power, Type-CPD fast charging, and magnetic wireless charging. Users do not need to distinguish between interface types and can switch with one click to match the optimal power supply method, which significantly improves cross-scene applicability.
[0029] 3. Minimalist interactive experience: The sliding / rotating operation of the baffle can be completed with only one hand. The locking limit and damping feedback provide clear tactile cues, increasing the success rate of blind operation by more than 90%. The independent baffle design allows users to customize the interface exposure status, realizing "on-demand activation" and avoiding physical wear and tear on redundant interfaces.
[0030] 4. Improved structural reliability: The rotating / sliding mechanism integrates dustproof and splashproof design (such as sealing strips on the edge of the baffle), and the IP54 protection extends the interface life by more than 3 times; the micro switch's contactless design reduces mechanical wear.
[0031] 5. Convenience: The baffle is integrated into the cup body, eliminating the risk of loss, and interface switching and protection can be completed in a single operation. Attached Figure Description
[0032] Figure 1 This is a structural schematic diagram of the first position state of the first embodiment of the multi-interface safety electric heating cup of this application;
[0033] Figure 2 This is a structural schematic diagram of the second position state of the first embodiment of the multi-interface safety electric heating cup of this application;
[0034] Figure 3 This is a schematic diagram of the exploded state structure of the multi-interface safety electric heating cup baffle of this application;
[0035] Figure 4 This is a schematic diagram of the structure of the second embodiment of the multi-interface safety electric heating cup of this application;
[0036] Figure 5 This is a structural schematic diagram of the first position state of the third embodiment of the multi-interface safety electric heating cup of this application;
[0037] Figure 6 This is a structural schematic diagram of the second position state of the third embodiment of the multi-interface safety electric heating cup of this application.
[0038] Explanation of reference numerals in the attached figures
[0039] 1. Cup body; 11. Slide groove; 2. Power interface; 3. Charging interface; 4. Baffle; 41. Flip axis; 42. Rotation axis. Detailed Implementation
[0040] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings. The components of the embodiments of this utility model described and shown in the accompanying drawings can be arranged and designed in various different configurations. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.
[0041] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0042] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0043] In the description of this application, it should be understood that the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.
[0044] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings. Unless otherwise specified, the features in the following embodiments can be combined with each other.
[0045] Example 1
[0046] Please see Figures 1-3 This embodiment discloses a sliding multi-interface safety electric heating cup, including a cup body 1. The cup body 1 is provided with a power interface 2 and a charging interface 3. The cup body 1 is provided with a sliding groove 11, and a baffle 4 is slidably connected in the sliding groove 11. The baffle 4 has a first position and a second position relative to the cup body 1. In the first position, the baffle 4 slides upward to at least partially block the power interface 2, and the charging interface 3 is connected to the outside, so that the power plug cannot be inserted into the power interface 2, but the charging connector can be connected normally to the charging interface 3. In the second position, the baffle 4 slides downward to at least partially block the charging interface 3, and the power interface 2 is connected to the outside, thereby realizing that the external power supply can only be connected to either the power interface 2 or the charging interface 3.
[0047] A rectangular cavity is formed on the side wall of the cup body 1, and an AC220 V three-pin power interface 2 and a Type-C female connector are arranged side by side inside the cavity. The baffle 4 is a rectangular ABS injection molded part with a T-shaped slide rail on the back, which slides and engages with the T-shaped slide groove 11 on the side wall of the cavity, allowing it to move linearly between a first position and a second position. The baffle 4 has elastic buckles at both ends, which engage with the locking holes at both ends of the cavity after it is in position, forming a stable lock. When the baffle 4 is in the first position, the power interface 2 is completely covered, and the Type-C interface is exposed; when the baffle 4 slides to the second position, the charging interface 3 is completely covered, and the power interface 2 is exposed, thus enabling selective connection to an external power source.
[0048] A snap-fit structure is provided on the cup body 1. The snap-fit structure is either a latch or a magnetic structure. In the first position and / or the second position, the baffle 4 snaps into the cup body 1, making the baffle 4 in a relatively stable state. The charging interface 3 is one of the following types: USB, Type-C, Mini-B, Micro-B, or magnetic interface.
[0049] In some embodiments, the cup body 1 is provided with at least two charging ports 3, and the charging ports 3 are of one or more types selected from USB, Type-C, Mini-B, Micro-B, or magnetic interfaces. The electric cup also includes a baffle that is movably connected to the cup body 1 or the charging ports 3, and the baffle can cover at least one charging port 3.
[0050] When AC power is required: Rotate the main baffle 4 downwards to cover the charging interface 3 (at this time, the edge of the main baffle 4 is fixed to the lower part of the interface area by the buckle), the charging interface 3 is completely covered (the independent baffle does not need to be operated), the power interface 2 pops out and is exposed, and the user can insert the AC power plug;
[0051] When a charging device is needed: Rotate the main baffle 4 upwards to cover the power interface 2 (fixed with the upper buckle of the interface area). The power interface 2 is blocked, and the charging interface 3 is exposed. Users can connect an external power source such as a power bank to charge the battery in the electric cup.
[0052] Example 2
[0053] Please see Figure 4 This embodiment discloses a rotating multi-interface safety electric heating cup, including a cup body 1. The cup body 1 is provided with a power interface 2 and a charging interface 3. A baffle 4 is also movably connected to the cup body 1. The difference from the first embodiment is that the baffle 4 is rotatably connected to the cup body 1 through a flip shaft 41. The flip shaft 41 is located between the power interface 2 and the charging interface 3. The axis of rotation of the baffle 4 is perpendicular to the insertion direction of the power interface 2 or the charging interface 3. The baffle 4 can be flipped upward 90° around the axis of rotation to cover the power interface 2, or flipped downward 90° to cover the charging interface 3.
[0054] In some embodiments, to achieve stable positioning of the baffle 4, a torsion spring is provided inside the rotating shaft (in the initial state, the spring force causes the baffle 4 to naturally rise and cover the power interface 2), and rubber limiting blocks (not shown in the figure) are provided on both sides of the interface area: when the baffle 4 is flipped upward to cover the power interface 2, the edge of the baffle 4 abuts against the upper limiting block (this is the first position), and the spring force keeps the baffle 4 in a pressed state; when it is flipped downward to cover the Type-C interface, it abuts against the lower limiting block (the second position), and can be kept stable by a snap-fit. Alternatively, the torsion spring can adopt a magnetic structure to achieve stable positioning of the baffle 4.
[0055] In the first position, the baffle 4 blocks the power interface 2, and the charging interface 3 is connected to the outside, allowing the electric kettle to be charged; in the second position, the baffle 4 blocks the charging interface 3, and the power interface 2 is connected to the outside, allowing for mains power supply, thus ensuring that the external power source can only be connected to either the power interface 2 or the charging interface 3.
[0056] In some embodiments, a microswitch can be installed inside the opening. After the baffle 4 is rotated to its position, the switch is triggered, automatically cutting off the circuit of the blocked interface and connecting the circuit of the exposed interface. This solution utilizes the centrally located flipping shaft 41 to form a symmetrical lever, resulting in a short rotation stroke and convenient operation.
[0057] Example 3
[0058] Please see Figure 5 and Figure 6 The difference between this embodiment and Embodiment 2 is that the baffle 4 is rotatably connected to the cup body 1 via a rotating shaft 42. The rotating shaft is located between the power interface 2 and the charging interface 3, and the axis of the rotating shaft 42 is parallel to the interface insertion direction. The baffle 4 can rotate 90° clockwise or counterclockwise around the rotating shaft upwards (covering the power interface 2, which is the first position) or downwards (covering the charging interface 3, which is the second position). In the first position, the baffle 4 covers the power interface 2, and the charging interface 3 is connected to the outside. In the second position, the baffle 4 covers the charging interface 3, and the power interface 2 is connected to the outside, thereby ensuring that the external power source can only be connected to either the power interface 2 or the charging interface 3.
[0059] The baffle 4 is rotatably connected to the cup body 1. In the first position and / or the second position, the baffle 4 is engaged with the cup body 1, making the baffle 4 in a relatively stable state. The pivot of the baffle 4 is located between the power interface 2 and the charging interface 3. The axis of rotation of the baffle 4 is parallel to the insertion direction of the power interface 2 or the charging interface 3.
[0060] Example 4
[0061] The difference between this embodiment and the previous embodiment is that the cup body 1 is provided with multiple charging ports 3, each equipped with an independently sliding port baffle. The baffle is a thin sheet structure that can move back and forth along the guide rail of the port shell, and can individually close the corresponding port when not in use, preventing dust and splashes. This solution uses a linear slide rail and a buckle to allow the user to switch with one hand, with a short stroke and clear feedback. Mechanical forced isolation prevents two ports from being exposed at the same time; the independent baffle further solves the extreme problem of multiple ports being completely exposed or completely closed, improving the dustproof level.
[0062] In some embodiments, the cup body 1 is provided with at least two charging ports 3, and also includes a baffle movably connected to the cup body 1 or the charging ports 3, the baffle being able to cover at least one charging port 3. The connection method of the baffle can refer to the connection method of the baffle 4, and it can be slidably or rotatably connected to the cup body 1 or the ports, and can be freely switched in different positions.
[0063] Example 5
[0064] The difference between this embodiment and the above embodiment is that a micro switch is integrated inside the cup body 1: when the baffle 4 is in the first position (blocking the power interface 2), the edge of the baffle 4 triggers the switch to automatically cut off the power supply circuit of the power interface 2; when it is in the second position (blocking the Type-C interface), another switch is triggered to cut off the circuit of the Type-C interface.
[0065] In some embodiments, the microswitch within the cup body 1 is configured such that when the baffle 4 blocks either interface, the circuit of the other interface is automatically turned on. The charging interface 3 is one or more of USB, Type-C, Mini-B, Micro-B, or magnetic interfaces.
[0066] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments; the embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes, modifications, substitutions, and variations can be made to this utility model without departing from its spirit and scope, and all such changes, modifications, substitutions, and variations fall within the scope of the claimed utility model.
Claims
1. A multi-interface safety electric heating cup, comprising a cup body, characterized in that, The cup body is equipped with a power interface and a charging interface, and a baffle is movably connected to the cup body. The baffle can switch between a first position and a second position. The cup body is equipped with a micro switch. When the baffle blocks any interface, it automatically cuts off the circuit of the blocked interface and connects the circuit of the exposed interface. In the first position, the baffle at least partially covers the power interface and exposes the charging interface; in the second position, the baffle at least partially covers the charging interface and exposes the power interface, thereby enabling an external power source to connect to either the power interface or the charging interface selectively.
2. The multi-interface safety electric heating cup according to claim 1, characterized in that, The baffle is slidably connected to the cup body.
3. The multi-interface safety electric heating cup according to claim 1, characterized in that, The baffle is rotatably connected to the cup body, power interface, or charging interface.
4. The multi-interface safety electric heating cup according to claim 2 or 3, characterized in that, In the first position and / or the second position, the baffle engages with the cup body to make the baffle in a relatively stable state.
5. The multi-interface safety electric heating cup according to claim 3, characterized in that, The pivot of the baffle is located between the power interface and the charging interface.
6. The multi-interface safety electric heating cup according to claim 5, characterized in that, The axis of rotation of the baffle is perpendicular to the insertion direction of the power interface and / or charging interface.
7. The multi-interface safety electric heating cup according to claim 5, characterized in that, The axis of rotation of the baffle is parallel to the insertion direction of the power interface and / or charging interface.
8. The multi-interface safety electric heating cup according to claim 1, characterized in that, The charging interface is one or more of the following types: USB, Type-C, Mini-B, Micro-B, or magnetic interface.
9. The multi-interface safety electric heating cup according to claim 1 or 8, characterized in that, It also includes at least one independently operable interface cover, and there are at least two charging interfaces. Each interface cover is movably connected to the cup body or the corresponding charging interface, and is used to selectively cover or expose its corresponding charging interface.