A cooking pot with an electric heating element

Abstract

The application relates to a cooking pot with an electric heating element, comprising a pot body, the bottom of the pot body is provided with an electric heating plate, the bottom of the pot body is further connected with an upper coupler assembly, the upper coupler assembly is located at the lower side of the electric heating plate, the upper coupler assembly comprises an upper coupler and a live wire pin and a zero line pin connected on the upper coupler, characterized in that: a sealing gasket is arranged between the upper coupler assembly and the bottom of the pot body, and the upper coupler assembly and the sealing gasket are detachably connected to the bottom of the pot body through locking fasteners. Compared with the prior art, the application has the advantages that: the sealing gasket is arranged between the upper coupler assembly and the bottom of the pot body, so that the fixing structure of the upper coupler assembly and the cooking pot can still provide reliable sealing effect without using glue, and the upper coupler assembly and the cooking pot are convenient to disassemble and overhaul.

Description

Technical Field

[0001] This invention relates to a cooking pot body with an electric heating element. Background Technology

[0002] Existing food processors generally include a base and a food processor cup mounted on the base. The base houses a drive motor and a power control board, while the food processor cup contains a blade assembly and a heating element. The base has a lower clutch assembly connected to the drive motor and a lower coupler assembly electrically connected to the power control board. The bottom of the food processor cup has an upper clutch assembly connected to the blade assembly and an upper coupler assembly electrically connected to the heating element. When the food processor cup is placed on the base, the upper clutch assembly at the bottom of the food processor cup is connected to the lower clutch assembly on the base, and the upper coupler assembly at the bottom of the food processor cup is coupled to the lower coupler assembly on the base to draw power from the heating element. When the food processor's cooking program is started, the drive motor drives the blade assembly to rotate via the lower and upper clutch assemblies, and the power control board supplies power to the heating element via the lower and upper coupler assemblies.

[0003] In existing cooking pots with electric heating elements, the pot body is mostly sealed with glue when the coupler assembly is assembled. For example, Chinese Patent CN101884493B discloses a kitchen container (7) with a container wall and an electrically heated base (12). The heating base (12) includes a resistance heating element (10), which is electrically contacted by an insertable protrusion (16, 17) located on the underside of the heating base (12). The insertable protrusion (16, 17) is mounted on a second base (13) located below the resistance heating element (10). The characteristic feature is that the insertable protrusion (16, 17) is bonded to the second base (13) by a cross-linked adhesive. This adhesive connection can only be broken by destruction, and the second base (13) is integrally formed with the container wall. In this design, the insert-type protrusions (16, 17) are the upper coupler assembly. While the upper coupler assembly provides good waterproofing, it becomes non-removable after the adhesive cures. Simultaneously, the thermostat is also sealed within the interlayer between the heating plate and the pot body and cannot be removed. If inspection reveals poor contact between the internal thermostat or the upper coupler and the heating plate, the pot body cannot be reworked and must be scrapped entirely. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a cooking pot body with an electric heating element that provides a reliable sealing effect without the use of glue, while also being easy to disassemble and repair.

[0005] The technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows: a cooking pot body with an electric heating element, including a pot body, an electric heating plate at the bottom of the pot body, and an upper coupler assembly connected to the bottom of the pot body. The upper coupler assembly is located below the electric heating plate and includes an upper coupler and a live wire pin and a neutral wire pin connected to the upper coupler. The upper coupler assembly is characterized in that: a sealing gasket is provided between the upper coupler assembly and the bottom of the pot body; a first mounting hole is opened at the bottom of the pot body; a second mounting hole corresponding to the position of the first mounting hole is opened on the sealing gasket; a third mounting hole corresponding to the position of the second mounting hole is opened on the upper coupler; a locking stud is provided inside the first mounting hole at the bottom of the pot body; a locking fastener passes through the third mounting hole, the second mounting hole, and the first mounting hole in sequence and is connected to the locking stud, thereby sealing the upper coupler assembly and the sealing gasket to the bottom of the pot body; at the same time, the live wire pin and the neutral wire pin in the upper coupler assembly are electrically connected to the power supply end of the electric heating plate.

[0006] To achieve a better seal, as an improvement, a sealing rib is provided at the part of the sealing gasket that contacts the bottom of the pot body. When the upper coupler assembly and the sealing gasket are connected to the bottom of the pot body by locking fasteners, the sealing rib makes tight contact with the bottom of the pot body to achieve a seal.

[0007] As a preferred option, the matching first mounting hole, second mounting hole, third mounting hole, locking fastener and locking stud are provided in multiple sets.

[0008] Further improvements include the addition of a pressure-resistant sleeve around the locking stud, allowing the locking stud and heating plate to withstand higher pressure tests, thereby enhancing safety.

[0009] Further improvements include a sealing plug on the bottom outer side of the third mounting hole to seal the locking fastener, and a sealing rib on the outer side of the sealing plug to prevent water from entering the upper coupler assembly.

[0010] Further improvements include a gap between the heating plate and the upper coupler; the upper coupler has a first surrounding wall that protrudes upwards, within which a first mounting cavity is formed, and a thermostat is installed in the first mounting cavity; the sealing gasket has a first through hole corresponding to the position of the first mounting cavity; the first surrounding wall is sealed and inserted into the first through hole; and after the upper coupler assembly and the sealing gasket are sealed and connected to the bottom of the pot body, the thermostat contacts the heating plate.

[0011] Further improvements include the addition of elastic contacts at the upper ends of the live wire and neutral wire pins. After the upper coupler assembly and sealing gasket are sealed to the bottom of the pot body, the elastic contacts at the upper ends of the live wire and neutral wire pins are electrically connected to the two power supply terminals of the heating plate.

[0012] Further improvements include a grounding pin connected to the bottom of the pot body, a first grounding pin through hole on the sealing gasket allowing the grounding pin to pass through, and a second grounding pin through hole on the upper coupler allowing the grounding pin to pass through.

[0013] Further improvements include a gap between the heating plate and the upper coupler; the upper coupler has a second surrounding wall that protrudes upwards, within which a second mounting cavity is formed, and a temperature sensor is installed in the second mounting cavity; the upper coupler is also connected to two power-taking pins that are electrically connected to the two terminals of the temperature sensor respectively; and after the upper coupler assembly and the sealing gasket are sealed to the bottom of the pot body, the temperature sensor comes into contact with the heating plate.

[0014] The pot body can be a single-layer pot body, with a concave cavity formed upward and inward at the bottom, and the upper coupler assembly installed in the concave cavity. The pot body also includes an inner pot and an outer pot disposed outside the inner pot. The bottom of the inner pot is perforated, and the heating plate is welded around its perimeter into the perforation at the bottom of the inner pot. The bottom of the outer pot has a concave cavity formed upward and inward. A gap is provided between the bottom concave cavity of the outer pot and the heating plate. The upper coupler assembly is installed in the concave cavity.

[0015] The sealing rib is provided at the part where the sealing gasket contacts the inner wall of the concave cavity at the bottom of the pot body.

[0016] The cavity is cylindrical; both the upper coupler and the sealing gasket are annular; the outer edge of the sealing gasket is surrounded by an outer covering wall that wraps around the outer edge of the upper coupler, and the outer covering wall is provided with an outer sealing rib; the upper surface of the sealing gasket is provided with an upper sealing rib; the outer sealing rib and the upper sealing rib together constitute the sealing rib; after the upper coupler assembly and the sealing gasket are sealed and connected to the bottom of the pot body, the outer sealing rib is in sealing contact with the inner wall of the cavity at the bottom of the pot body, and the upper sealing rib is in sealing contact with the inner wall of the cavity at the bottom of the pot body.

[0017] The bottom cavity of the pot body has a mounting hole for installing the upper clutch, and an annular splicing component is connected inside the mounting hole; the inner edge of the sealing gasket has an inner covering wall that wraps around the inner edge of the upper coupler, and the surface of the inner covering wall has an inner sealing rib; the outer sealing rib, the inner sealing rib, and the upper sealing rib together constitute the sealing rib; after the upper coupler assembly and the sealing gasket are sealed and connected to the bottom of the pot body, the inner sealing rib is in sealed contact with the outer wall of the annular splicing component.

[0018] Compared with the prior art, the advantages of the present invention are: a sealing gasket is provided between the upper coupler assembly and the bottom of the pot body, so that the fixing structure between the upper coupler assembly and the cooking pot body can still provide a reliable sealing effect without the use of glue, while also facilitating disassembly and maintenance. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of a cooking pot with an electric heating element according to Embodiment 1 of the present invention.

[0020] Figure 2 This is a cross-sectional view of the cooking pot body with an electric heating element in Embodiment 1 of the present invention.

[0021] Figure 3 This is an exploded view of the cooking pot body with an electric heating element in Embodiment 1 of the present invention.

[0022] Figure 4 This is a schematic diagram of the inner pot in Embodiment 1 of the present invention.

[0023] Figure 5 This is an exploded view of the cooking pot body of the outer pot in Embodiment 1 of the present invention.

[0024] Figure 6 This is a schematic diagram of the upper coupler assembly in Embodiment 1 of the present invention.

[0025] Figure 7 This is a schematic diagram of the upper coupler assembly from another perspective in Embodiment 1 of the present invention.

[0026] Figure 8 This is a schematic diagram of the sealing gasket structure in Embodiment 1 of the present invention.

[0027] Figure 9 This is a cross-sectional view of the cooking pot body with an electric heating element in Embodiment 2 of the present invention. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0029] like Figures 1-3 The cooking pot shown has an electric heating element and includes a pot body consisting of an inner pot 1 and an outer pot 2. The bottom of the inner pot 1 has a perforation 11. (See attached image) Figure 4 As shown, a heating plate 3 is sealed and welded inside the perforation 11, meaning the heating plate 3 is sealed and welded around its perimeter inside the perforation 11 at the bottom of the inner pot. The heating plate 3 serves as the bottom of the inner pot. The inner pot 1 and the outer pot 2 are sealed and welded together at the top opening, forming a gap between them. A concave cavity 21 is formed upward and inward at the bottom of the outer pot 2. (See Figure 1) Figure 5 As shown; there is also a gap between the bottom cavity 21 of the outer pot 2 and the heating plate 3; an upper coupler assembly is installed in the bottom cavity 21 of the outer pot 2.

[0030] The upper coupler assembly includes an upper coupler 4 and a live wire pin 41, a neutral wire pin 42, and two power-taking pins 43 and 44 connected to the upper coupler 4; see also Figure 6, 7 As shown, a sealing gasket 5 is provided between the upper coupler 4 and the bottom cavity 21 of the outer pot 2. Multiple first mounting holes 22 are formed on the upper side wall of the bottom cavity 21 of the outer pot 2. Multiple second mounting holes 54, each corresponding to one of the positions of the first mounting holes 22, are formed on the sealing gasket 5. Multiple third mounting holes 45, each corresponding to one of the positions of the second mounting holes 54, are formed on the upper coupler 4. A locking stud 6 is provided inside the first mounting holes 22 of the bottom cavity 21 of the outer pot 2. A locking screw 7 passes through the third mounting hole 45, the second mounting hole 54, and the first mounting hole 22 in sequence and connects to the locking stud 6, sealing the upper coupler assembly and the sealing gasket 5 within the bottom cavity 21 of the outer pot 2. Simultaneously, the live wire pin 41 and the neutral wire pin 42 in the upper coupler assembly are electrically connected to the power supply terminal of the heating plate 3. Each locking stud 6 is externally wrapped with a pressure-resistant sleeve 9. The bottom outer side of the third mounting hole 45 is provided with a sealing plug 10 to seal the locking screw 7. The outer side of the sealing plug is provided with a sealing rib to seal the third mounting hole 45.

[0031] In this embodiment, the bottom cavity 21 of the outer pot 2 is cylindrical; the bottom cavity 21 of the outer pot 2 is provided with a mounting hole 24 for installing the upper clutch, and an annular splice 8 is sealed and welded inside the mounting hole 24; the upper coupler 4 and the sealing gasket 5 are both annular; the outer edge of the sealing gasket 5 is provided with an outer covering wall 51 that wraps around the outer edge of the upper coupler, and the surface of the outer covering wall 51 is provided with an outer sealing rib 511; the upper surface of the sealing gasket 5 is provided with an upper sealing rib 53; the inner edge of the sealing gasket 5 is provided with an inner covering wall 52 that wraps around the inner edge of the upper coupler 4, and the surface of the inner covering wall 52 is provided with an inner sealing rib 521; see also Figure 8 As shown, after the upper coupler assembly and sealing gasket 4 are sealed to the bottom of the outer pot 2 by locking screw 7, the outer sealing rib 511 is in sealing contact with the inner wall of the bottom cavity of the outer pot 2, the upper sealing rib 53 is in sealing contact with the upper inner wall of the bottom cavity of the outer pot 2, and the inner sealing rib 521 is in sealing contact with the outer wall of the annular splice 8.

[0032] The upper coupler 4 is provided with a first surrounding wall 46 that protrudes upwards. A first mounting cavity is formed inside the first surrounding wall. A thermostat bracket 12 is installed in the first mounting cavity. A thermostat 13 is installed on the thermostat bracket. A first through hole 55 corresponding to the position of the first mounting cavity is opened on the sealing gasket 5. A second through hole 25 corresponding to the position of the first mounting cavity is opened in the bottom cavity 21 of the outer pot 2. The first surrounding wall 46 is sealed and inserted into the first through hole 55 and passes through the second through hole 25. After the upper coupler assembly and the sealing gasket are sealed and connected to the bottom cavity 21 of the outer pot 2, the thermostat 13 contacts the heating plate 3. The upper ends of the live wire pin 41 and the neutral wire pin 42 are connected to elastic contacts 411 and 421, respectively. After the upper coupler assembly and the sealing gasket are sealed to the bottom cavity 21 of the outer pot 2, the elastic contacts 411 and 421 connected to the upper ends of the live wire pin 41 and the neutral wire pin 42 are electrically connected to the two power supply terminals of the heating plate 3. The upper coupler 4 has a second, upward-protruding surrounding wall 48, within which a second mounting cavity is formed. A temperature sensor 14 is housed within this cavity. Two power-feeding pins 43 and 44 connected to the upper coupler 4 are electrically connected to the two terminals of the temperature sensor 14. A third through hole 56 corresponding to the position of the second mounting cavity is formed on the sealing gasket 5. A fourth through hole 26 corresponding to the position of the second mounting cavity is formed on the bottom recess 21 of the outer pot 2. The second surrounding wall 48 is sealed and inserted within the third through hole 56 and passes through the fourth through hole 26. After the upper coupler assembly and the sealing gasket 5 are sealed and connected to the bottom recess 21 of the outer pot 2, the temperature sensor 14 contacts the heating plate 3. A grounding pin 23 is welded to the bottom of the outer pot 2. Correspondingly, the sealing gasket 5 has a first grounding pin through hole 57 allowing the grounding pin 23 to pass through, and the upper coupler 4 has a second grounding pin through hole 47 allowing the grounding pin 23 to pass through.

[0033] Example 2

[0034] Unlike Embodiment 1, the pot body is a single-layer pot body 1', with a recessed cavity 11' formed upward and inward at the bottom of the single-layer pot body 1'. The upper coupler assembly is installed in the recessed cavity 11', and the heating plate 3 is welded to the bottom of the pot body. A gap is provided between the recessed cavity 11' at the bottom of the pot body and the heating plate 3. (See [reference]) Figure 9 As shown.

Claims

1. A cooking pot body with an electric heating element, comprising a pot body, a heating plate at the bottom of the pot body, and an upper coupler assembly connected to the bottom of the pot body, the upper coupler assembly being located below the heating plate, the upper coupler assembly comprising an upper coupler and a live wire pin and a neutral wire pin connected to the upper coupler, characterized in that: A sealing gasket is provided between the upper coupler assembly and the bottom of the pot body. The bottom of the pot body has a first mounting hole, and the sealing gasket has a second mounting hole corresponding to the position of the first mounting hole. The upper coupler has a third mounting hole corresponding to the position of the second mounting hole. A locking stud is provided inside the first mounting hole at the bottom of the pot body. After the locking fastener passes through the third mounting hole, the second mounting hole and the first mounting hole in sequence, it is connected to the locking stud, thereby sealing the upper coupler assembly and the sealing gasket to the bottom of the pot body. At the same time, the live wire pin and the neutral wire pin in the upper coupler assembly are electrically connected to the power supply terminal of the heating plate.

2. The cooking pot body with an electric heating element according to claim 1, characterized in that: The sealing gasket is provided with a sealing rib at the part that contacts the bottom of the pot body. When the upper coupler assembly and the sealing gasket are connected to the bottom of the pot body by locking fasteners, the sealing rib and the bottom of the pot body are in close contact to achieve a seal.

3. The cooking pot body with an electric heating element according to claim 1, characterized in that: The system includes multiple sets of first mounting holes, second mounting holes, third mounting holes, locking fasteners, and locking studs.

4. The cooking pot body with an electric heating element according to claim 3, characterized in that: The locking stud is wrapped with a pressure-resistant sleeve.

5. The cooking pot body with an electric heating element according to claim 1, characterized in that: The bottom outer side of the third mounting hole is provided with a sealing plug to seal the fastener, and the outer side of the sealing plug is provided with a sealing rib.

6. The cooking pot body with an electric heating element according to claim 1, characterized in that: A gap is formed between the heating plate and the upper coupler; the upper coupler is provided with a first surrounding wall that protrudes upward, and a first mounting cavity is formed inside the first surrounding wall. A thermostat is installed in the first mounting cavity. A first through hole corresponding to the position of the first mounting cavity is opened on the sealing gasket. The first surrounding wall is sealed and inserted into the first through hole. After the upper coupler assembly and the sealing gasket are sealed and connected to the bottom of the pot body, the thermostat contacts the heating plate.

7. The cooking pot body with an electric heating element according to claim 1, characterized in that: The upper ends of the live wire pin and the neutral wire pin are connected to elastic contacts. After the upper coupler assembly and the sealing gasket are sealed to the bottom of the pot body, the elastic contacts connected to the upper ends of the live wire pin and the neutral wire pin are electrically connected to the two power supply terminals of the heating plate, respectively.

8. The cooking pot body with an electric heating element according to claim 1, characterized in that: The bottom of the pot body is connected to a grounding pin. Correspondingly, the sealing gasket is provided with a first grounding pin through hole that allows the grounding pin to pass through, and the upper coupler is provided with a second grounding pin through hole that allows the grounding pin to pass through.

9. The cooking pot body with an electric heating element according to claim 1, characterized in that: A gap is formed between the heating plate and the upper coupler; the upper coupler is provided with a second surrounding wall that protrudes upward, and a second mounting cavity is formed inside the second surrounding wall. A temperature sensor is provided inside the second mounting cavity. The upper coupler is also connected to two power-taking pins that are electrically connected to the two terminals of the temperature sensor respectively. After the upper coupler assembly and the sealing gasket are sealed to the bottom of the pot body, the temperature sensor comes into contact with the heating plate.

10. The cooking pot body with an electric heating element according to any one of claims 1 to 9, characterized in that: The pot body is a single-layer pot body, and a concave cavity is formed at the bottom of the single-layer pot body facing upward and inward. The upper coupler assembly is installed in the concave cavity.

11. The cooking pot body with an electric heating element according to any one of claims 1 to 9, characterized in that: The pot body includes an inner pot and an outer pot disposed outside the inner pot. The bottom of the inner pot is perforated, and the heating plate is welded around its perimeter into the perforation at the bottom of the inner pot. The bottom of the outer pot has a concave cavity formed upward and inward. A gap is provided between the concave cavity at the bottom of the outer pot and the heating plate. The upper coupler assembly is installed in the concave cavity.

12. The cooking pot body with an electric heating element according to claim 11, characterized in that: The sealing gasket is provided with sealing ribs at the part that contacts the inner wall of the concave cavity at the bottom of the pot body.

13. The cooking pot body with an electric heating element according to claim 12, characterized in that: The cavity is cylindrical; both the upper coupler and the sealing gasket are annular; the outer edge of the sealing gasket is surrounded by an outer covering wall that wraps around the outer edge of the upper coupler, and the outer covering wall is provided with an outer sealing rib; the upper surface of the sealing gasket is provided with an upper sealing rib; the outer sealing rib and the upper sealing rib together constitute the sealing rib; after the upper coupler assembly and the sealing gasket are sealed and connected to the bottom of the pot body, the outer sealing rib is in sealing contact with the inner wall of the cavity at the bottom of the pot body, and the upper sealing rib is in sealing contact with the inner wall of the cavity at the bottom of the pot body.

14. The cooking pot body with an electric heating element according to claim 13, characterized in that: The bottom cavity of the pot body has a mounting hole for installing the upper clutch, and an annular splicing component is connected inside the mounting hole; the inner edge of the sealing gasket has an inner covering wall that wraps around the inner edge of the upper coupler, and the surface of the inner covering wall has an inner sealing rib; the outer sealing rib, the inner sealing rib, and the upper sealing rib together constitute the sealing rib; after the upper coupler assembly and the sealing gasket are sealed and connected to the bottom of the pot body, the inner sealing rib is in sealed contact with the outer wall of the annular splicing component.

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