Kitchen machine with heating function

Abstract

The utility model discloses a chef machine with heating function, including frame and detachable food container, and food container is provided with heating unit, is provided with connecting groove on the frame, and the inner ring surface of connecting groove is provided with first locking portion, and the inner bottom of connecting groove is provided with the electricity taking connecting seat subassembly of horizontal rotation, and the top of electricity taking connecting seat subassembly has a plurality of interval arrangement's electrically conductive jack, the bottom of food container is convex and is provided with first connecting seat, and the outer circumferential side of first connecting seat is equipped with second locking portion, and the bottom of first connecting seat is provided with electrically conductive pin subassembly, when food container is loaded into frame, first connecting seat is inserted into connecting groove downward, and electrically conductive pin is inserted into corresponding electrically conductive jack, and food container relative frame horizontal rotation makes first locking portion and second locking portion interlock, and electrically conductive pin subassembly, electricity taking connecting seat subassembly horizontal rotation together. Its simple structure, reliable, cost is lower and need not complicated electric control intervention's container locking and connection.

Description

Technical Field

[0001] This utility model relates to the field of food processors, and in particular to a food processor with a heating function. Background Technology

[0002] A stand mixer, an indispensable food processing appliance in modern kitchens, is widely used for mixing, blending, kneading, and heating various ingredients such as vegetables, fruits, beans, flour, eggs, and cream. A typical stand mixer usually consists of a base and a food container (or mixing bowl) that is detachably mounted on the base. During operation, the drive mechanism is located inside the base, while the mixing components (such as the mixing paddle and whisk) extend into the food container from the top opening to perform the work.

[0003] However, this conventional structure has a significant hidden danger: during mixing operations, especially when handling high-viscosity materials or operating at high speeds, the machine generates strong vibrations. These vibrations can easily cause the connection between the food container and the machine base to loosen. If the container becomes detached, it can lead to food spillage and processing interruptions, or even serious accidents such as collisions between the mixing components and the container, machine tipping over, and even injury to the user. Therefore, ensuring the secure installation of the food container on the machine base and preventing accidental detachment during operation has always been a key issue that those skilled in the art have been focusing on and striving to solve.

[0004] To address the aforementioned issues, the industry has undertaken numerous explorations and improvements. A common solution is to incorporate a snap-fit ​​or elastic locking structure at the junction of the container bottom and the base. For example, the container is initially secured by the interlocking of elastic protrusions on the sidewall of the base mounting slot with the snap-fit ​​on the container base. However, this connection method, relying solely on elastic force, remains unreliable under continuous and severe vibration conditions. The elastic components may fail due to fatigue, leading to a decrease in locking force.

[0005] To improve the reliability of locking, more complex locking mechanisms have been developed. For example, a smart food processor with self-protection function is disclosed in the prior art. In addition to the basic elastic protrusion and bayonet engagement, a locking mechanism is added. This locking mechanism includes a push rod set inside the base and a drive device that drives the push rod to move horizontally. When the elastic protrusion is detected to have accidentally disengaged from the bayonet, the control system will activate a micro motor, which drives the push rod to move horizontally through a transmission wheel system, causing it to extend into a preset insertion hole on the container base, thereby achieving a secondary locking of the container to prevent it from falling off.

[0006] While the above solutions can theoretically provide additional security, they have the following obvious drawbacks: 1. This solution requires integrating a complete drive system consisting of a motor, transmission wheel and push rod inside the machine base. This not only increases the number of mechanical parts, but also makes the internal structure of the machine base more compact and complex, resulting in a significant increase in production costs.

[0007] 2. The locking mechanism's operation relies on detection signals and motor drives. This means that additional sensors (such as position sensors) are needed to detect the locking state, and the electronic control system requires complex control logic to coordinate the operation of the stirring motor and the locking motor. The increase in electronic components and software logic directly increases the overall system failure rate; failure of any link (sensor false alarm, motor failure, program error) may cause the locking mechanism to malfunction or fail to operate, thus introducing new safety hazards.

[0008] 3. There is a reaction and execution time required from detecting disengagement to the extension and locking of the push rod. Under severe vibration, the container may have already shifted during this brief delay, causing the push rod to fail to insert accurately into the socket, resulting in locking failure.

[0009] 4. The complex mechanical and electrical control structures are difficult to repair once they malfunction, requiring professional personnel for diagnosis and replacement, which increases the user's later usage costs and maintenance burden.

[0010] Therefore, a new technical solution needs to be researched to address the above problems. Utility Model Content

[0011] In view of this, the present invention addresses the deficiencies of the existing technology and its main purpose is to provide a food processor with a heating function. This food processor has a simple, reliable, and lower cost structure and does not require complex electronic control intervention for container locking and connection. This fundamentally solves the problem of food container stability during operation and overcomes the various drawbacks of complex locking mechanisms in the existing technology.

[0012] To achieve the above objectives, the present invention adopts the following technical solution: A food processor with a heating function includes a base and a food container detachably mounted on the base, the food container being equipped with a heating unit; The base is provided with a downwardly recessed connecting groove, the inner ring surface of the connecting groove is provided with a first locking part, the bottom of the connecting groove is provided with a horizontally rotatable power supply connector assembly, and the top of the power supply connector assembly has a number of horizontally spaced conductive sockets. The bottom of the food container is provided with a first connecting seat, and the outer periphery of the first connecting seat is provided with a second locking part. The bottom of the first connecting seat is provided with a conductive pin assembly, which includes a plurality of conductive pins that are horizontally spaced and extend downwards. When the food container is placed on the base, the first connector extends downward into the connector groove, the conductive pin is inserted into the corresponding conductive socket, the food container rotates horizontally relative to the base so that the first locking part and the second locking part lock each other, and the conductive pin assembly and the power supply connector assembly rotate horizontally together.

[0013] As a preferred embodiment, the first locking part and the second locking part are respectively an L-shaped groove and a locking protrusion; the L-shaped groove includes an inlet groove and a locking groove extending circumferentially from one side of the inner end of the inlet groove. When the food container is installed on the base, the locking protrusion extends into the inlet groove and is screwed into the locking groove as the food container rotates horizontally.

[0014] As a preferred embodiment, the power connection assembly has a rotating positioning part extending outward. Correspondingly, a through hole is provided at the center of the inner bottom of the connection groove, and a rotating positioning groove is further recessed on the inner peripheral side of the through hole. The rotating positioning part extends into the rotating positioning groove. When the food container rotates horizontally, the rotating positioning part rotates within the rotating positioning groove.

[0015] As a preferred embodiment, the bottom of the rotary positioning part is provided with a plurality of circumferentially spaced protrusions, and the bottom ends of the protrusions are in contact with the inner bottom surface of the rotary positioning groove.

[0016] As a preferred embodiment, the base is provided with a connecting cavity and an annular connecting base plate. The connecting groove is formed in the connecting cavity, the through hole is formed on the bottom wall of the connecting cavity, and the annular connecting base plate is disposed below the bottom wall of the connecting cavity. The annular connecting base plate and the bottom wall of the connecting cavity form the rotary positioning groove.

[0017] As a preferred embodiment, the power supply connector assembly includes a top cover, an inner cover, several conductive sheets, a second connector, and a bottom cover; the top cover, the inner cover, the second connector, and the bottom cover are sequentially arranged vertically, and the top cover is provided with several clearance through holes; the several conductive sheets are located inside the second connector, and their upper ends extend toward the corresponding clearance through holes to form the conductive sockets.

[0018] As a preferred embodiment, the periphery of the bottom cover extends below the bottom wall of the rotary positioning groove.

[0019] As a preferred embodiment, the heating unit is disposed at the bottom of the food container and located within the second connector, and the heating unit is electrically connected to the conductive pin assembly.

[0020] As a preferred embodiment, at least one of the locking slots is provided with a locking detection switch, which is triggered after the locking protrusion is screwed into the locking slot.

[0021] As a preferred embodiment, the base includes a lower body and an upper body mounted on the lower body via a head-up pivot, and the connecting groove is disposed on the lower body.

[0022] Compared with the prior art, this utility model has significant advantages and beneficial effects. Specifically, as can be seen from the above technical solution, it mainly achieves an integrated action of rotation locking and connection by cooperating with the first connecting seat, locking protrusion, and conductive pin assembly set at the bottom of the food container, and the corresponding connecting groove, L-shaped groove, and horizontally rotatable power supply connecting seat assembly on the base. When the food container is placed into the base and rotated, the locking protrusion slides into the locking position along the L-shaped groove to achieve mechanical locking; at the same time, the conductive pin is inserted into the conductive socket of the power supply connecting seat assembly, and the two rotate horizontally together. In this way, the electrical connection function is cleverly integrated into the action of the food container being inserted into the base. The electrical connection will not interfere with the subsequent rotation locking operation. Moreover, its simple structure eliminates the need for expensive motors, transmission components and complex control circuits. The purely mechanical rotation locking method avoids the risk of electronic component failure. The locking state is directly determined by the user manually rotating the container to the position, which is intuitive and reliable. Production costs and subsequent maintenance costs are also greatly reduced.

[0023] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0024] Figure 1 This is a perspective view of a food processor with heating function according to an embodiment of the present invention; Figure 2 This is a cross-sectional view of a food processor with heating function according to an embodiment of the present invention; Figure 3 yes Figure 2 A magnified view of a portion of the image; Figure 4 This is an exploded view of a food processor with heating function according to an embodiment of the present invention; Figure 5 This is a partially exploded view (sectional view) of a food processor with heating function according to an embodiment of the present invention. Figure 6 This is an exploded view of the power supply connector assembly, connecting cavity, and annular connecting base plate of a food processor with heating function according to an embodiment of the present invention. Figure 7This is another exploded view of the power supply connector assembly, connecting cavity, and annular connecting base plate of a food processor with heating function according to an embodiment of the present invention. Detailed Implementation

[0025] Please refer to Figures 1 to 7 As shown, it illustrates the specific structure of an embodiment of the present invention. In the description of the present invention, it should be noted that the terms "upper," "lower," "left," "right," etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing the present invention 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. Therefore, they should not be construed as limitations on the present invention.

[0026] A food processor with heating function includes a base 100 and a food container 200 detachably mounted on the base 100.

[0027] The base 100 is provided with a downwardly recessed connecting groove 11. The inner ring surface of the connecting groove 11 is provided with a first locking part, specifically an L-shaped groove 111. The bottom of the connecting groove 11 is provided with a horizontally rotatable power supply connector assembly 12. The power supply connector assembly 12 is horizontally rotatable relative to the base 100 within the connecting groove 11. The top of the power supply connector assembly 12 has a plurality of horizontally spaced conductive sockets.

[0028] The food container 200 is equipped with a heating unit. A first connecting seat 21 protrudes from the bottom of the food container 200. A second locking part is provided on the outer periphery of the first connecting seat 21, specifically a locking protrusion 211 protruding outwards. A conductive pin assembly 22 is provided at the bottom of the first connecting seat 21. The conductive pin assembly 22 includes several horizontally spaced conductive pins, each extending downwards (e.g., NTC temperature control, neutral wire, live wire, and ground wire, totaling 5 pins). Preferably, the heating unit is located at the bottom of the food container 200 and within the first connecting seat 21, and the heating unit is electrically connected to the conductive pin assembly 22. The heating unit is located directly at the bottom of the food container 200. The heating unit includes a copper heat pipe and an aluminum heat conduction plate (the materials of the heat pipe and heat conduction plate can be changed as needed). The copper heat pipe generates heat when energized, which is then transferred to the aluminum heat conduction plate. The aluminum heat conduction plate is attached to the lower surface of the bottom wall of the container cavity of the food container 200. The heat transfer path is short and the heating efficiency is high. Furthermore, the heating unit and the conductive pin assembly are integrated into the connector, which makes the functional modules of the food container 200 highly concentrated and the structure more compact.

[0029] In use, when the food container 200 is installed on the base 100, the first connecting seat 21 extends downward into the connecting groove 11, the conductive pin is inserted into the corresponding conductive socket, the locking protrusion 211 extends downward into the L-shaped groove 111 and screws into the L-shaped groove 111 along with the horizontal rotation of the food container 200, and the conductive pin assembly 22 and the power-taking connecting seat assembly 12 rotate horizontally together. In this way, a stable mechanical lock and reliable electrical connection are achieved between the food container 200 and the base 100, while maintaining a simple structure and low cost.

[0030] Furthermore, the L-shaped groove 111 includes an upwardly extending through-hole groove and a locking groove extending circumferentially from one side of the lower end of the through-hole groove. When the food container 200 is installed on the base 100, the first connecting seat 21 extends downward into the connecting groove 11, and the locking protrusion 211 extends downward into the through-hole groove and screws into the locking groove along with the horizontal rotation of the food container 200. The through-hole groove facilitates the initial alignment and vertical insertion of the first connecting seat 21 and the locking protrusion 211, while the locking groove provides a clear horizontal rotation path and a final locking position. When the user presses down and rotates the food container 200, they can clearly feel the locking protrusion 211 sliding from the through-hole groove into the locking groove, thus confirming that the locking action has been completed.

[0031] Furthermore, the power supply connector assembly 12 has a rotating positioning part 1201 extending outward. Correspondingly, a through hole 112 is provided at the center of the inner bottom of the connecting groove 11, and a rotating positioning groove 103 is further recessed on the inner peripheral side of the through hole 112. The rotating positioning part 1201 extends into the rotating positioning groove 103. When the food container 200 rotates horizontally, the rotating positioning part 1201 rotates within the rotating positioning groove 103, effectively preventing the conductive pin from being twisted or worn due to relative rotation within the socket. This ensures the stability and safety of the electrical connection during the rotation locking process. The movement of the rotating positioning part within the rotating positioning groove provides a stable rotation axis and movement trajectory for the entire power supply connector assembly. Preferably, the bottom of the rotary positioning part 1201 is provided with a plurality of circumferentially spaced protrusions 12011, the bottom ends of which contact the inner bottom surface of the rotary positioning groove 103. Here, the surface contact between the rotary positioning part 1201 and the bottom surface of the rotary positioning groove 103 is changed to point contact, reducing the contact area and effectively reducing the frictional resistance during rotation, making the rotation operation more effortless and smoother. This reduced wear extends the service life of the components and contributes to improving the durability of the food processor.

[0032] Furthermore, the base 100 is provided with a connecting cavity 101 and an annular connecting base plate 102. The connecting groove 11 is formed in the connecting cavity 101, and the through hole 112 is formed on the bottom wall of the connecting cavity 101. The annular connecting base plate 102 is disposed below the bottom wall of the connecting cavity 101, with its inner annular hole facing the through hole 112. The annular connecting base plate 102 and the bottom wall of the connecting cavity 101 together form the rotary positioning groove 103. In this way, the groove structure is decomposed into multiple parts for assembly, reducing the processing difficulty of individual parts and facilitating production, manufacturing, and subsequent assembly and maintenance.

[0033] Furthermore, the power supply connector assembly 12 includes a top cover 121, an inner cover 122, several conductive sheets 123, a second connector 124, and a bottom cover 125. The top cover 121, the inner cover 122, the second connector 124, and the bottom cover 125 are sequentially arranged vertically. The top cover 121 has several clearance holes. The several conductive sheets 123 are located inside the second connector 124, and their upper ends extend towards the corresponding clearance holes to form the conductive insertion holes. By assembling the top cover, inner cover, conductive sheets, connectors, and bottom cover in layers, the structure is clear, facilitating specialized production and quality control. The inner cover and connectors are made of plastic, which effectively fixes and insulates the conductive sheets, preventing short circuits and ensuring electrical safety. The upper ends of the conductive sheets directly face the clearance holes, ensuring a stable, low-resistance electrical connection with the conductive pins. In this embodiment, the periphery of the bottom cover 125 extends into the bottom wall of the rotary positioning groove 103 to prevent the power supply connector assembly from moving vertically, strengthen axial positioning, keep it stable during rotation, and further improve the reliability of the connection.

[0034] Furthermore, at least one of the locking slots is equipped with a locking detection switch, which is triggered after the locking protrusion 211 is screwed into the locking slot. Only when the locking protrusion is rotated into position and the switch is triggered is the machine, especially the heating and stirring functions, allowed to start, providing another layer of safety to prevent misoperation. The safety interlocking effect is quite ideal. Compared with the complex detection and drive systems in the prior art, the detection switch here has a simple structure and extremely low cost.

[0035] Furthermore, in this embodiment, the base is a common base structure, comprising a lower body and an upper body mounted on the lower body via a tilting hinge, with the connecting groove disposed on the lower body. The tilting design facilitates the user's loading, unloading, and cleaning of food containers, and the connecting locking structure is perfectly compatible with this common base structure, enhancing the product's usability.

[0036] In another embodiment, the first locking part is a locking protrusion and the second locking part is an L-shaped groove. This is equivalent to the L-shaped groove 111 and the locking protrusion 211 of the aforementioned embodiment being interchangeable on the body 100 and the food container 200, respectively. The L-shaped groove 111 is provided on the food container 200 and the locking protrusion 211 is provided on the body 100. The operation method of the food processor can be the same when it is used.

[0037] The key design feature of this invention lies in its integration of rotation locking and connection through a first connecting seat, locking protrusion, and conductive pin assembly located at the bottom of the food container, which, in conjunction with a corresponding connecting groove, L-shaped groove, and horizontally rotatable power supply connecting seat assembly on the base. When the food container is inserted into the base and rotated, the locking protrusion slides into the locking position along the L-shaped groove, achieving mechanical locking. Simultaneously, the conductive pin inserts into the conductive socket of the power supply connecting seat assembly, and both rotate horizontally together. This ingenious design integrates the electrical connection function entirely within the downward insertion of the food container into the base. The electrical connection does not interfere with subsequent rotation locking operations. Furthermore, its simple structure eliminates the need for expensive motors, transmission components, and complex control circuits. The purely mechanical rotation locking method avoids the risk of electronic component failure. The locking state is determined directly by the user manually rotating the container to its position, making it intuitive and reliable. This also significantly reduces production and subsequent maintenance costs.

[0038] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A food processor with a heating function, comprising a base (100) and a food container (200) detachably mounted on the base (100), the food container (200) being provided with a heating unit, characterized in that: The base (100) is provided with a downwardly recessed connecting groove (11), the inner ring surface of the connecting groove (11) is provided with a first locking part, the bottom of the connecting groove (11) is provided with a horizontally rotatable power supply connector assembly (12), and the top of the power supply connector assembly (12) has a number of horizontally spaced conductive sockets. The bottom of the food container (200) is provided with a first connecting seat (21), and the outer periphery of the first connecting seat (21) is provided with a second locking part. The bottom of the first connecting seat (21) is provided with a conductive pin assembly (22), which includes a plurality of conductive pins that are horizontally spaced and extend downward. When the food container (200) is installed on the base (100), the first connector (21) extends downward into the connector groove (11), the conductive pin is inserted into the corresponding conductive socket, the food container (200) rotates horizontally relative to the base (100) so that the first locking part and the second locking part lock each other, and the conductive pin assembly (22) and the power supply connector assembly (12) rotate horizontally together.

2. The food processor with heating function according to claim 1, characterized in that: The first locking part and the second locking part are respectively an L-shaped groove (111) and a locking protrusion (211); the L-shaped groove (111) includes an inlet groove and a locking groove extending circumferentially from one side of the inner end of the inlet groove. When the food container (200) is installed on the base (100), the locking protrusion (211) extends into the inlet groove and is screwed into the locking groove as the food container (200) rotates horizontally.

3. The food processor with heating function according to claim 1, characterized in that: The power connection assembly (12) has a rotating positioning part (1201) extending outward. Correspondingly, a through hole (112) is provided at the center of the inner bottom of the connection groove (11). The inner peripheral side of the through hole (112) is further recessed with a rotating positioning groove (103). The rotating positioning part (1201) extends into the rotating positioning groove (103). When the food container (200) rotates horizontally, the rotating positioning part (1201) rotates within the rotating positioning groove (103).

4. The food processor with heating function according to claim 3, characterized in that: The bottom of the rotating positioning part (1201) is provided with a plurality of protrusions (12011) arranged at circumferential intervals, and the bottom end of the protrusions (12011) is in contact with the inner bottom surface of the rotating positioning groove (103).

5. The food processor with heating function according to claim 3, characterized in that: The base (100) is provided with a connecting cavity (101) and an annular connecting base plate (102). The connecting groove (11) is formed in the connecting cavity (101), and the through hole (112) is formed on the bottom wall of the connecting cavity (101). The annular connecting base plate (102) is disposed below the bottom wall of the connecting cavity (101). The annular connecting base plate (102) and the bottom wall of the connecting cavity (101) form the rotating positioning groove (103).

6. The food processor with heating function according to claim 3, characterized in that: The power supply connector assembly (12) includes a top cover (121), an inner cover (122), a plurality of conductive plates (123), a second connector (124), and a bottom cover (125); the top cover (121), the inner cover (122), the second connector (124), and the bottom cover (125) are arranged and assembled sequentially, one above the other; the top cover (121) is provided with a plurality of clearance through holes; the plurality of conductive plates (123) are located inside the second connector (124), and their upper ends extend toward the corresponding clearance through holes to form the conductive socket.

7. The food processor with heating function according to claim 6, characterized in that: The periphery of the bottom cover (125) extends into the bottom wall of the rotary positioning groove (103).

8. The food processor with heating function according to claim 6, characterized in that: The heating unit is disposed at the bottom of the food container (200) and located inside the first connector (21), and the heating unit is electrically connected to the conductive pin assembly (22).

9. The food processor with heating function according to claim 2, characterized in that: At least one of the locking slots is provided with a locking detection switch, which is triggered when the locking protrusion (211) is screwed into the locking slot.

10. The food processor with heating function according to claim 1, characterized in that: The base includes a lower body and an upper body mounted on the lower body via a head-up pivot, and the connecting groove is provided on the lower body.

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