Drainage structure of rice steamer

Abstract

The utility model relates to a kind of drainage structure of rice steamer, including rice steamer body and pot cover, inner container and heating disc are arranged in the rice steamer body, the heating disc is connected on the bottom wall of inner container, the center position of bottom wall is equipped with drain, and bottom wall is obliquely arranged from edge to drain direction;The heating disc includes heat-conducting disc body and heating tube assembly, the top surface of heat-conducting disc body is the concave surface structure of center low edge high, concave surface structure matches bottom wall shape, and is closely adhered on bottom wall;This rice steamer can discharge rice soup from drain to the outside of inner container, realize the function of rice cooking with draining rice, wherein bottom wall is designed to be oblique from edge to drain direction, it can ensure that the rice soup of inner container can be completely drained, and bottom wall is connected with the heating disc of non-flat shape, so that the heating disc can be closely adhered on bottom wall, improve heat transfer efficiency, while not affecting the laying connection of bottom heating tube assembly.

Description

Technical Field

[0001] This utility model relates to the field of rice cookers, specifically a drainage structure for a rice cooker. Background Technology

[0002] The existing rice cooker structure is shown in Chinese patent document, application number: 202120350474.4, which discloses a sugar-reducing rice cooker. It mainly discloses a bucket body, an inner pot, and a control device. The bucket body is provided with a heating groove, and the bottom of the heating groove is provided with a heating device and a drain pipe. The drain pipe is connected to the outside of the bucket body and is provided with a second solenoid valve. The bottom of the heating groove in this structure is flat, which makes it easy for the drain pipe to not drain completely during the drainage process. Therefore, the applicant improves and perfects the existing structure to solve the above problems and provide consumers with a choice for use. Utility Model Content

[0003] The purpose of this invention is to solve the above-mentioned existing problems and provide a simple and reasonable drainage structure for a rice cooker.

[0004] A drainage structure for a rice cooker includes a rice cooker body and a lid. The rice cooker body contains an inner pot and a heating plate. The heating plate is connected to the bottom wall of the inner pot. A drain outlet is provided at the center of the bottom wall, and the bottom wall is inclined from the edge towards the drain outlet. The heating plate includes a heat-conducting plate body and a heating tube assembly. The top surface of the heat-conducting plate body has a concave structure with a lower center and a higher edge. The concave structure matches the shape of the bottom wall and fits tightly against the bottom wall.

[0005] The objective of this utility model can also be achieved by the following technical measures: As a more specific embodiment, the bottom surface of the heat-conducting plate is a flat structure, and the heating tube assembly is laid on the flat structure.

[0006] As a further embodiment, the heating element assembly includes multiple annular heating elements, which are concentrically connected to the bottom surface of the heat-conducting plate at intervals but with different diameters. Each heating element is provided with two terminals, and the multiple heating elements are connected in series or in parallel through the terminals.

[0007] As a further embodiment, the bottom wall has a downwardly concave arc-shaped curved surface structure, and the height difference of the arc-shaped curved surface structure is less than or equal to 10mm.

[0008] As a further embodiment, the heat-conducting plate has an avoidance opening corresponding to the drain outlet, and the bottom wall has an annular step portion recessed into the avoidance opening, the annular step portion surrounding and defining the drain outlet.

[0009] As a further embodiment, the drain outlet is provided with a water pipe connector, the water pipe connector is connected to a drain pipe, and the drain pipe is provided with a drain control device.

[0010] As a further embodiment, the other end of the drain pipe extends out of the side of the rice cooker body, and the drain control device includes a drain tap connected to the other end of the drain pipe.

[0011] As a further embodiment, the drainage control device includes an electronic control valve connected in series with the drain pipe; the drain pipe is confined within the rice cooker body and communicates with a water storage structure disposed within the rice cooker body, or the other end of the drain pipe extends out of the rice cooker body.

[0012] As a further solution, a temperature controller connected in series with the heating tube assembly is fastened to the bottom surface of the heat-conducting plate.

[0013] As a further embodiment, the rice cooker body includes an outer shell, the inner pot is placed inside the outer shell, a heating element is connected to the bottom surface of the inner pot, a steamer can be placed inside the inner pot, the steamer has a through hole communicating with the inner cavity of the inner pot, and a gap is left between the bottom of the steamer and the bottom of the inner pot.

[0014] The beneficial effects of this utility model are as follows: This utility model discloses a drainage structure for a rice cooker. This rice cooker can drain rice water from the drain outlet to the outside of the inner pot, realizing the function of draining rice and cooking. The bottom wall is designed to slope from the edge towards the drain outlet, which can ensure that the rice water in the inner pot can be drained cleanly. The bottom wall is connected to a heating plate with a non-flat shape, which allows the heating plate to fit tightly against the bottom wall, improving heat transfer efficiency, while not affecting the arrangement and connection of the bottom heating tube assembly. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the cross-sectional structure of the rice cooker in this utility model.

[0016] Figure 2 This is a schematic diagram showing the exploded structure of the bottom wall and heating plate in this utility model.

[0017] Figure 3 This is a schematic diagram of the bottom structure of the inner liner in this utility model. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] First embodiment: See Figures 1 to 3As shown, a drainage structure for a rice cooker includes a rice cooker body 1 and a lid 2. The rice cooker body 1 has an inner pot 11 and a heating plate 12 inside. The heating plate 12 is connected to the bottom wall 14 of the inner pot 11. A drain outlet 141 is provided at the center of the bottom wall 14, and the bottom wall 14 is inclined from the edge towards the drain outlet 141. The heating plate 12 includes a heat-conducting plate body 121 and a heating tube assembly. The top surface of the heat-conducting plate body 121 has a concave structure with a lower center and a higher edge. The concave structure matches the shape of the bottom wall 14 and fits tightly against the bottom wall 14. The bottom surface of the heat-conducting plate body 121 has a flat structure, and the heating tube assembly is laid on the flat structure.

[0020] This rice cooker can drain rice water from the drain outlet 141 to the outside of the inner pot 11, realizing the function of draining rice and cooking. The bottom wall 14 is designed to slope from the edge towards the drain outlet 141, which can ensure that the rice water in the inner pot 11 can be drained cleanly. The bottom wall 14 is connected to the heating plate 12, which matches its non-flat shape, so that the heating plate 12 can fit tightly against the bottom wall 14, improving the heat transfer efficiency, while not affecting the arrangement and connection of the bottom heating tube assembly.

[0021] In the above embodiments, the bottom surface of the heat-conducting plate 121 is flat, so that the heating tube assembly (conventional spiral heating tube) does not need to be reshaped and can fit the bottom surface of the heat-conducting plate 121. However, when the heating tube assembly includes multiple annular heating tubes 122, and the multiple heating tubes 122 are concentric but connected at intervals with different diameters on the bottom surface of the heat-conducting plate 121, each heating tube 122 can be connected on an independent horizontal plane, so that the bottom surface of the heat-conducting plate 121 can also be set as an arc-shaped curved surface. Each heating element 122 is equipped with two electrodes, and multiple heating elements 122 are connected in series or in parallel through the electrodes. When multiple heating elements 122 are connected in parallel, each heating element 122 can work independently without interfering with each other, thus achieving more precise control over cooking.

[0022] The bottom wall 14 has a downwardly concave arc-shaped curved surface structure, and the height difference X of the arc-shaped curved surface structure is less than or equal to 10mm. In this embodiment, within this height difference range, the bottom wall 14 has a micro-arc curved surface, so that when the top surface of the heat conduction plate 121 is concave and the bottom surface is flat, it is not necessary to significantly increase the edge thickness, so that the heat conduction of the entire heat conduction plate 121 is uniform inside and outside.

[0023] The heat-conducting plate 121 has an opening 123 corresponding to the drain outlet 141. The bottom wall 14 has an annular step portion 142 recessed into the opening 123. The annular step portion 142 surrounds and defines the drain outlet 141. The cooperation between the annular step portion 142 and the opening 123 can also play a role in positioning the installation position of the heating plate 12.

[0024] The drain outlet 141 is provided with a water pipe connector 3, the top of the water pipe connector 3 rests against the annular step portion 142, the water pipe connector 3 is connected to a drain pipe 4, and the drain pipe 4 is provided with a drainage control device; the drainage of the inner liner 11 is controlled by the drainage control device.

[0025] Specifically, the other end of the drain pipe 4 extends out of the side of the rice cooker body 1, and the drain control device includes a drain faucet 5, which is connected to the other end of the drain pipe 4; the user can manually open the drain faucet 5 to drain the water or rice soup from the inner pot.

[0026] A thermostat 6 is fastened to the bottom surface of the heat-conducting plate 121 and connected in series with the heating tube assembly; the temperature of the heat-conducting plate 121 is monitored by the thermostat 6 to prevent dry burning.

[0027] The rice cooker body 1 includes an outer shell 10, and an inner pot 11 is placed inside the outer shell 10. A steamer 13 can be placed inside the inner pot 11. The steamer 13 has a through hole 131 that connects to the inner cavity of the inner pot 11, and a gap H is left between the bottom of the steamer 13 and the bottom of the inner pot 11. This structure can facilitate the cooking of rice in a steamer. Through intelligent control, the cooking of rice in a steamer can be achieved, and rice can also be produced.

[0028] Second embodiment: The second embodiment differs from the first embodiment in that: the drainage control device includes an electronic control valve, which is connected in series with the drain pipe 4, and the other end of the drain pipe 4 extends out of the rice cooker body 1; the electronic control valve enables intelligent discharge of water or rice soup, thereby improving the product's intelligence, safety, reliability, and user experience.

[0029] For some customers, rice water needs to be reused. Therefore, the drain pipe 4 is confined inside the rice cooker body 1 and connected to the water storage structure set inside the rice cooker body 1. The water storage structure makes it convenient for users to collect rice water.

[0030] The above describes the preferred embodiments of this utility model, illustrating and describing its basic principles, main features, and advantages. 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 and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents.

Claims

1. A drainage structure for a rice cooker, comprising a rice cooker body (1) and a lid (2), wherein the rice cooker body (1) is provided with an inner pot (11) and a heating plate (12), the heating plate (12) being connected to the bottom wall (14) of the inner pot (11), characterized in that: The bottom wall (14) has a drain outlet (141) at its center and the bottom wall (14) is inclined from the edge toward the drain outlet (141); the heating plate (12) includes a heat-conducting plate body (121) and a heating tube assembly. The top surface of the heat-conducting plate body (121) has a concave structure with a low center and high edge. The concave structure matches the shape of the bottom wall (14) and fits tightly against the bottom wall (14).

2. The drainage structure of a rice cooker according to claim 1, characterized in that: The bottom surface of the heat-conducting plate (121) is flat, and the heating tube assembly is laid on the flat structure.

3. The drainage structure of a rice cooker according to claim 2, characterized in that: The heating tube assembly includes multiple annular heating tubes (122). The multiple heating tubes (122) are concentric but spaced apart on the bottom surface of the heat-conducting plate (121). Each heating tube (122) is provided with two electrodes, and the multiple heating tubes (122) are connected in series or in parallel through the electrodes.

4. The drainage structure of a rice cooker according to claim 1, characterized in that: The bottom wall (14) has a downwardly concave arc-shaped surface structure, and the height difference of the arc-shaped surface structure is less than or equal to 10 mm.

5. The drainage structure of a rice cooker according to claim 1, characterized in that: The heat-conducting plate (121) has an avoidance opening (123) corresponding to the drain outlet (141), and the bottom wall (14) has an annular step portion (142) recessed into the avoidance opening (123), and the annular step portion (142) surrounds and defines the drain outlet (141).

6. The drainage structure of a rice cooker according to claim 1 or 5, characterized in that: The drain outlet (141) is provided with a water pipe connector (3), the water pipe connector (3) is connected to a drain pipe (4), and the drain pipe (4) is provided with a drainage control device.

7. The drainage structure of a rice cooker according to claim 6, characterized in that: The other end of the drain pipe (4) extends out of the side of the rice cooker body (1), and the drain control device includes a drain tap (5), which is connected to the other end of the drain pipe (4).

8. The drainage structure of a rice cooker according to claim 6, characterized in that: The drainage control device includes an electronic control valve connected in series with the drain pipe (4); the drain pipe (4) is confined within the rice cooker body (1) and communicates with a water storage structure provided within the rice cooker body (1), or the other end of the drain pipe (4) extends out of the rice cooker body (1).

9. The drainage structure of a rice cooker according to claim 1, characterized in that: The bottom surface of the heat-conducting plate (121) is fastened with a thermostat (6) connected in series with the heating tube assembly.

10. The drainage structure of a rice cooker according to claim 1, characterized in that: The rice cooker body (1) includes an outer shell (10), and the inner pot (11) is placed inside the outer shell (10). The inner pot (11) contains a steamer (13), and the steamer (13) has a through hole (131) that connects to the inner cavity of the inner pot (11). A gap (H) is left between the bottom of the steamer (13) and the bottom of the inner pot (11).

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