Hot plate structure with safe electrical isolation

Abstract

To provide a hot plate structure having a safe electrical isolation structure. [Solution] The hot plate structure includes a support base, a hot plate, and a power supply unit. The hot plate includes a hot plate body (21), a heating tube (22), and a power interface (24). The heating tube is connected to the bottom of the hot plate body and to the power interface on one side of the hot plate body. A protective cover (23) is rotatably mounted on the power interface and can be rotated between a locked position and an unlocked position. When in the unlocked position, the power supply unit can be inserted into the power interface to supply power to the heating tube, and when in the locked position, the protective cover prevents the power supply unit from being inserted into the power interface. The support base is used to support the hot plate and includes an actuator that rotates the protective cover in conjunction with the actuator to move it from the locked position to the unlocked position.

Description

[Technical Field]

[0001] The present invention relates to the technical field of hot plates, and more particularly to a hot plate structure with a safe electrical cutoff structure. [Background technology]

[0002] Currently, there are separable electric hot plates on the market that are designed to allow the hot plate to be separated from the support base. The hot plate has a heating tube at the bottom and a power interface on the side. When in use, the hot plate is placed on the support base, an opening is provided on one side of the support base to allow access to the power interface, and the temperature controller plug is inserted into the power interface. When electricity is applied, the hot plate begins to operate. However, because the existing design does not have a power interface protection device, some users turn on the power directly and use the hot plate when it is not properly placed on the support base, causing serious safety concerns. Summary of the Invention [Problem to be solved by the invention]

[0003] SUMMARY OF THE INVENTION The present invention aims to solve the above-mentioned problems of the prior art and to provide a hot plate structure with a safe electrical cutoff structure. [Means for solving the problem]

[0004] In order to solve the above technical problems, the present invention provides a hot plate structure with a safe electrical cut-off structure, which includes a support, a hot plate, and a power supply unit; the hot plate includes a hot plate body, a heating tube, and a power supply interface, the heating tube is connected to the bottom of the hot plate body, and the heating tube is connected to the power supply interface on one side of the hot plate body. A protective cover is rotatably installed on the power supply interface, the protective cover can be rotatable between a locked position and an unlocked position, and when in the unlocked position, the power supply unit can be inserted into the power supply interface to supply power to the heating tube, and when in the locked position, the protective cover prevents the power supply unit from being inserted into the power supply interface; The support base is used to support the hot plate, and includes an operating part that rotates in conjunction with the protective cover when the hot plate body is placed on the support base, moving the hot plate body from a locked position to an unlocked position.

[0005] In a more preferred embodiment, one end of the protective cover forms a cover that shields the power supply unit, and the other end of the protective cover forms a drive unit, and the operating unit is capable of abutting against the drive unit to rotate the protective cover.

[0006] In a more preferred embodiment, when in the locked position, the driving part extends from the power interface, and the actuating part is a first convex wall provided on the support base, and when the hot plate is placed on the support base, the first convex wall presses the driving part to rotate the protective cover.

[0007] In a more preferred embodiment, the support base further comprises a second convex wall, and a limited space for installing the power interface is formed between the first convex wall and the second convex wall.

[0008] In a more preferred embodiment, the power supply unit includes a temperature measuring stick and a power supply socket; The power interface has a receptacle for receiving the temperature measuring stick and a plug for inserting into the power supply socket; the protective cover shields the receptacle and / or plug when in a locked position.

[0009] In a more preferred embodiment, the support base includes a bottom wall and a peripheral wall surrounding the bottom wall, the peripheral wall having an opening; the actuating part is provided on the bottom wall and / or the peripheral wall; and the power interface can be inserted into the opening.

[0010] In a more preferred embodiment, the actuation portion is provided adjacent to the opening.

[0011] In a more preferred embodiment, the protective cover is pivotally connected to the power interface by a torsion spring, the torsion spring being connected between the cover and the drive unit.

[0012] In a more preferred embodiment, the hot plate further includes a pot lid for covering the hot plate.

[0013] Compared with the prior art, the technical solution of the present invention has the following beneficial effects: [Effects of the Invention]

[0014] The protective cover is rotatable between a locked position and an unlocked position. When in the unlocked position, the power supply unit can be plugged into the power interface to supply power to the heating tube, and when in the locked position, the protective cover prevents the power supply unit from being plugged into the power interface. The support base is used to support the hot plate, and includes an actuator. When the hot plate body is placed on the support base, the actuator interlocks and rotates the protective cover to move it from the locked position to the unlocked position. The power supply unit is plugged into the power interface only when the hot plate body is properly attached to the support base, providing high safety, and the power supply unit cannot be directly plugged into the power interface after the hot plate is removed from the support base. [Brief explanation of the drawings]

[0015] [Figure 1] 1 is a perspective view showing the structure of a hot plate according to a preferred embodiment of the present invention; [Figure 2] 1 is an exploded view of a hot plate structure according to a preferred embodiment of the present invention; [Figure 3] FIG. 2 is a perspective view of a power supply unit plugged into a power interface according to a preferred embodiment of the present invention; [Figure 4] 1 is a diagram illustrating the power supply unit and power interface according to a preferred embodiment of the present invention, with the protective cover in the locked position; [Figure 5] 1 is a diagram illustrating the power interface and the support base according to a preferred embodiment of the present invention, with the protective cover in the unlocked position; [Figure 6] 1 is a diagram illustrating the power supply unit and power interface according to a preferred embodiment of the present invention, with the protective cover in the unlocked position; [Figure 7] 1 is a perspective view of a protective cover according to an embodiment of the present invention; DETAILED DESCRIPTION OF THE INVENTION

[0016] The present invention will now be described with reference to the drawings. 1 to 7, a hot plate structure having a safety electrical cutoff structure includes a support base 1, a hot plate 2, and a power supply unit 3. The support base 1 includes a bottom wall 11 and a peripheral wall 12 surrounding the bottom wall 11, and the hot plate 2 may be mounted on the peripheral wall 12 of the support base 1. The hot plate structure further includes a pot lid 4 that can be placed on the hot plate 2.

[0017] The hot plate 2 includes a hot plate body 21, an electric heating tube 22, and a power supply interface 24.

[0018] The hot plate body 21 is shaped like a square plate, and has a predetermined depth so that it can accommodate soup-covered food. The electric heating tube 22 is connected to the hot plate body 21. In this embodiment, the electric heating tube 22 is installed on the underside of the hot plate body 21, and a small groove is formed on the underside of the hot plate body 21, into which the electric heating tube 22 is fitted. The electric heating tube 22 forms a power interface 24 for the hot plate body 21, and a protective cover 23 is rotated and installed on the power interface 24.

[0019] The protective cover 23 is rotatable between a locked position and an unlocked position. When in the unlocked position, the power supply unit 3 can be plugged into the power interface 24 to supply power to the heating tube 22, and when in the locked position, the protective cover 23 prevents the power supply unit 3 from being plugged into the power interface 24.

[0020] The support base 1 is used to receive the hot plate 2, and includes an operating part. When the hot plate body 21 is placed on the support base 1, the operating part rotates in conjunction with the protective cover 23 to move it from a locked position to an unlocked position.

[0021] In this embodiment, the power supply interface 24 protrudes from one side of the hot plate body 21 and has a live conductor terminal, a neutral conductor terminal, and a temperature measurement interface 243. The live conductor terminal and the neutral conductor terminal are connected to both ends of the heating tube 22, respectively. Since the heating tube 22 is a resistance-type heating tube, the heating tube 22 can be heated simply by connecting the live conductor terminal and the neutral conductor terminal to a commercial power source. The temperature measurement interface 243 corresponds to the underside of the hot plate body 21, and the temperature measurement rod 31 of the power supply unit 3 can be inserted into the temperature measurement interface 243.

[0022] In this embodiment, an opening 121 is provided in the peripheral wall 12. The actuating part is provided in the bottom wall 11 and / or the peripheral wall 12; the power interface 24 can be inserted into the opening 121.

[0023] In this embodiment, one end of the protective cover 23 forms a cover 231 that shields the power supply unit 3, and the other end of the protective cover 23 forms a driver 232, which can contact the driver 232 to rotate the protective cover 23. When in the locked position, the driver 232 extends from the power interface 24, and the driver is a first protruding wall 131 provided on the support base 1. When the hot plate body 21 is placed on the support base 1, the first protruding wall 131 presses the driver 232 to rotate the protective cover 23. The support base 1 further includes a second protruding wall 14, and a limited space for installing the power interface 24 is formed between the first protruding wall 131 and the second protruding wall 14.

[0024] The power supply unit 3 includes a temperature measuring rod 31 and a power supply socket 32. The power supply interface 24 has a receptacle (i.e., the temperature measuring interface 243) for receiving the temperature measuring rod 31 and a plug (i.e., the hot wire and neutral wire terminals) for inserting into the power supply socket 32; the protective cover 23 shields the receptacle and / or plug when in the locked position. A power cord is connected to the power supply unit 3, and the power cord can be connected to a commercial power receptacle. The power supply socket 32 ​​can be connected to the hot wire and neutral wire, respectively, to supply power to the heating tube 22. In this embodiment, the protective cover 23 only shields the receptacle. When the receptacle is shielded, the temperature measuring rod 31 cannot be inserted into the temperature measuring interface 243, and the entire power supply unit 3 cannot be connected to the power interface 24.

[0025] In this embodiment, the actuating part is located adjacent to the opening 121. The protective cover 23 is rotatably connected to the power interface 24 by a torsion spring 233, which is connected between the cover 231 and the actuating part 232.

[0026] During use, by inserting the power interface 24 of the hot plate 2 into the opening 121, the drive part 232 of the protective cover 23 is pressed against the first convex wall 131, and when the drive part 232 of the protective cover 23 is pressed against the first convex wall 131, the protective cover 23 rotates and moves from the locked position to the unlocked position, thereby ensuring a path for the power supply unit 3 to be connected to the power interface 24. In this case, the power supply unit 3 can be connected to the power interface 24.

[0027] The above description is merely a preferred specific embodiment of the present invention, and the design concept of the present invention is not limited thereto. Those skilled in the art may make non-essential modifications to the present invention using such concepts within the technical scope of the present invention, and any such modifications will violate the scope of protection of the present invention.

Claims

1. A hot plate structure with a safety electrical isolation structure, A support base, a hot plate, and a power supply unit are included; The hot plate includes a hot plate body, a heating tube, and a power interface, the heating tube is connected to the bottom of the hot plate body, and the heating tube is connected to the power interface on one side of the hot plate body; a protective cover rotatably installed on the power interface, the protective cover being rotatable between a locked position and an unlocked position, wherein when in the unlocked position, the power supply unit can be inserted into the power interface to supply power to the electric heating tube, and when in the locked position, the protective cover prevents the power supply unit from being inserted into the power interface; The hot plate structure with a safe electrical isolation structure is characterized in that the support base is used to support the hot plate, the support base includes an operating unit, and when the hot plate body is placed on the support base, the operating unit rotates the protective cover in conjunction with the hot plate body to move it from a locked position to an unlocked position.

2. 2. The hot plate structure with a safe electrical cutoff structure according to claim 1, wherein one end of the protective cover forms a cover that shields the power supply unit, the other end of the protective cover forms a driving unit, and the operating unit is capable of abutting against the driving unit to rotate the protective cover.

3. 3. The hot plate structure with a safety electrical cut-off structure according to claim 2, wherein when in the locked position, the driving part extends from the power interface, and the actuating part is a first protruding wall provided on the support base, and when the hot plate is placed on the support base, the first protruding wall presses the driving part to rotate the protective cover.

4. 4. The hot plate structure with a safe electrical isolation structure according to claim 3, wherein the support base further comprises a second protruding wall, and a restricted space for installing the power interface is formed between the first protruding wall and the second protruding wall.

5. The power supply unit includes a temperature measuring rod and a power supply socket; the power interface having a receptacle for receiving the temperature probe and a plug for inserting into the power supply socket; 3. The hot plate structure with a safety electrical isolation structure according to claim 2, wherein the protective cover shields the receptacle and / or plug when in a locked position.

6. The support base includes a bottom wall and a peripheral wall surrounding the bottom wall, the peripheral wall having an opening; The actuating portion is provided on the bottom wall and / or the peripheral wall; 6. The hot plate structure with a safe electrical disconnection structure according to claim 1, wherein the power supply interface is insertable into the opening.

7. 7. The hot plate structure with a safety electrical isolation structure as claimed in claim 6, wherein the actuation portion is disposed adjacent to the opening.

8. 3. The hot plate structure with a safe electrical isolation structure as claimed in claim 2, wherein the protective cover is rotatably connected to the power interface by a torsion spring, and the torsion spring is connected between the cover and the driving part.

9. 2. The hot plate structure with a safety electrical cutoff structure according to claim 1, further comprising a pot lid for covering the hot plate.

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