Switch structure for electric heating appliance

Abstract

The utility model discloses a kind of electric heating appliance switch structure, it includes a shell and a circuit board, it further includes a key pad, shell top has an opening upward installation groove, key pad is inserted into installation groove, shell has a containing groove, circuit board is installed in containing groove, the top of circuit board has a light touch switch, the upper end of light touch switch has contact, the bottom of key pad has a convex column, convex column is located above contact and is used to press contact down.The utility model is simple in structure, the contact of key pad and light touch switch can be directly contacted, when using, the contact of light touch switch is triggered by pressing key pad, it is convenient to use;Few accessories, so disassembly is more convenient.

Description

Technical Field

[0001] This utility model relates to a switch structure for an electric heating appliance. Background Technology

[0002] Electric heaters, such as electric cooking appliances, are common cooking utensils in daily life. Because they use electricity to drive the heating device to heat food, they can quickly heat food to the desired temperature and state. Electric cooking appliances have gradually become the mainstream for people to cook food, such as barbecue machines, meat grills, and flatbread presses.

[0003] For the technological development of electric cooking appliances, in addition to upgrading and modifying the heating device, optimizing the operability of the appliance is even more important, such as the design of the control switch. A small control switch, though seemingly insignificant, can significantly influence consumer purchasing decisions; consumers' demands for operability are no less than those for the appliance's performance itself. Currently, the market commonly uses a spring-loaded design, where the spring's elasticity acts reciprocally between the control points on the circuit board and the button plate, thus controlling the circuit. This type of design often requires the coordinated action of multiple components, leading to problems such as the need for significant downward pressure on the button plate, uneven spring force during pressing, spring slack, difficulty in disassembling the button, and difficulty in replacing the connected circuit board. Therefore, a specially designed electric cooking appliance switch that is simple in structure, easy to operate, and easy to maintain is needed. Utility Model Content

[0004] In view of the above-mentioned deficiencies of the prior art, the purpose of this utility model is to provide a switching structure for an electric heating appliance.

[0005] The technical solution of this utility model is: an electric heating appliance switch structure, which includes a housing and a circuit board, and also includes a button board. The top of the housing has an upward-facing mounting groove, and the button board is inserted into the mounting groove. The housing has an accommodating groove, and the circuit board is installed in the accommodating groove. The top of the circuit board has a tactile switch, and the upper end of the tactile switch has a contact. The bottom of the button board has a protrusion, which is located above the contact and is used to press down the contact.

[0006] Furthermore, the outer edge of the keypad has multiple vertically extending protrusions, and the edge of the mounting groove has multiple corresponding slots. The protrusions pass through the slots and slide vertically with the slots.

[0007] Furthermore, each protrusion has a buckle at its lower end, which passes through a locking hole and locks onto the inner wall of the outer casing.

[0008] Furthermore, both the left and right ends of the keypad are provided with a downwardly extending protrusion, and both the left and right ends of the mounting groove are provided with a groove, which is located below the protrusion, and the bottom surface of the groove is used to block the protrusion.

[0009] Furthermore, the housing has a through hole extending vertically, which communicates with the mounting groove, and the tactile switch and the protrusion extend into the through hole.

[0010] Furthermore, the circuit board has two indicator lights, the keypad is a transparent plate, and a label is attached to the receiving slot. The keypad, label, and indicator lights are distributed from top to bottom.

[0011] The advantages of using the electric heating appliance switch structure provided by this utility model are: simple structure, direct contact between the button plate and the tactile switch contacts, and convenient use by pressing the button plate to trigger the tactile switch contacts; fewer parts, making disassembly and assembly more convenient. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a cross-sectional schematic diagram of the present invention;

[0014] Figure 3 This is another cross-sectional view of the present invention;

[0015] Figure 4 This is an exploded view of the present invention;

[0016] Figure 5 This is a schematic diagram of the keypad structure of this utility model;

[0017] Figure 6 This is a schematic diagram of the outer shell of this utility model.

[0018] In the figure: 1—outer shell, 11—mounting slot, 111—slot, 112—groove, 12—accommodating slot, 13—through hole, 2—circuit board, 3—button board, 31—protrusion, 32—protrusion strip, 321—buckle, 33—protrusion, 4—tactile switch, 41—contact, 5—indicator light, 6—label sticker. Detailed Implementation

[0019] To provide a more intuitive and complete understanding of the technical solution of this utility model, the following non-limiting features are described in conjunction with the accompanying drawings:

[0020] like Figure 1 — Figure 6As shown, the electric heating appliance switch structure includes a housing 1, a circuit board 2, and a button plate 3. The top of the housing 1 has an upward-facing mounting groove 11, into which the button plate 3 is inserted. The housing 1 has a receiving groove 12 inside, into which the circuit board 2 is installed. The top of the circuit board 2 has a tactile switch 4, with a contact 41 at its upper end. The bottom of the button plate 3 has a protrusion 31, which is located above the contact 41 and is used to press down the contact 41.

[0021] like Figure 3 — Figure 6 As shown, in order to facilitate the up and down movement of the button plate 3, the outer edge of the button plate 3 has multiple vertically extending protrusions 32, and the edge of the mounting groove 11 has multiple corresponding slots 111. The protrusions 32 pass through the slots 111 and slide up and down with the slots 111.

[0022] like Figure 3 — Figure 6 As shown, each protrusion 32 has a latch 321 at its lower end. The latch 321 passes through the latch hole 111 and locks onto the inner wall of the outer casing 1. The latch 321 is designed to prevent the keypad 3 from falling off. The contact 41 is elastic, so it can provide an upward supporting force to the keypad 3. When the keypad 3 is pressed down, it can be reset by the elastic force of the contact 41 after being released.

[0023] like Figure 5 , Figure 6 As shown, the keypad 3 has a downwardly extending protrusion 33 at both its left and right ends, and the mounting groove 11 has a groove 112 at both its left and right ends. The groove 112 is located below the protrusion 33, and the bottom surface of the groove 112 is used to block the protrusion 33. The groove 112 is designed to limit the travel of the keypad 3, preventing the keypad 3 from going down too far and preventing the contact 41 from being damaged by excessive pressure.

[0024] The housing 1 has a through hole 13 extending vertically, which communicates with the mounting groove 11. The tactile switch 4 and the protrusion 32 both extend into the through hole 13.

[0025] The circuit board 2 has two indicator lights 5, the button board 3 is a transparent plate, and the receiving slot 12 has a label 6 attached. The label 6 is light-transmitting. The button board 3, the label 6, and the indicator lights 5 are distributed from top to bottom.

[0026] The electric heating appliance switch structure provided by this utility model has a simple structure. The button plate 3 and the contact 41 of the tactile switch 4 can directly contact each other. When in use, the contact 41 of the tactile switch 4 is triggered by pressing the button plate 3, which is convenient to use. This utility model has fewer parts, so it is more convenient to disassemble and assemble.

[0027] Of course, the above are only preferred embodiments of the present utility model, and do not limit the patent scope of the present utility model. Any simple modifications and equivalent structural changes made based on the contents of the present utility model specification and drawings should also be included within the patent protection scope of the present utility model.

Claims

1. A switching structure for an electric heating appliance, comprising a housing and a circuit board, characterized in that: It also includes a keypad with an upward-facing mounting slot on the top of the housing. The keypad snaps into the mounting slot. The housing has a receiving slot in which a circuit board is installed. The top of the circuit board has a tactile switch with a contact at its upper end. The bottom of the keypad has a protrusion located above the contact and used to press down the contact.

2. The electric heating appliance switching structure according to claim 1, characterized in that: The outer edge of the keypad has multiple vertically extending protrusions, and the edge of the mounting groove has multiple corresponding slots. The protrusions pass through the slots and slide vertically with the slots.

3. The electric heating appliance switching structure according to claim 2, characterized in that: Each protrusion has a buckle at its lower end, which passes through a locking hole and locks onto the inner wall of the outer casing.

4. The electric heating appliance switching structure according to claim 2, characterized in that: The keypad has a downward-extending protrusion at both the left and right ends, and the mounting slot has a groove at both the left and right ends. The groove is located below the protrusion, and the bottom of the groove is used to block the protrusion.

5. The electric heater switch structure according to claim 1, characterized in that: The housing has a through hole extending vertically, which connects to the mounting groove. The tactile switch and the protrusion extend into the through hole.

6. The electric heating appliance switching structure according to claim 1, characterized in that: The circuit board has two indicator lights, the keypad is a transparent plate, and the receiving slot has a label sticker. The keypad, label sticker and indicator lights are distributed from top to bottom.

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