Microwave oven door lock

Abstract

The utility model belongs to the technical field of microwave oven, especially point to a kind of microwave oven door lock, comprising: door body, the left and right sides of door body are rotatably provided with lock hook, lock hook is connected with the reset member that makes hook lock have downward movement tendency;Two locking seats are used to be respectively arranged on the two sides of microwave oven, locking seat is equipped with the locking mouth for the lock hook entering, locking mouth has the locking slope in the movement direction of the lock hook;And at least two microswitches, it is respectively installed in two locking seats.This patent is by respectively setting two locking seats, and configuring two corresponding lock hooks, to make user separate installation lock hook and microswitch, and can simplify the linkage trigger structure between lock hook and microswitch, to reduce manufacturing difficulty, accelerate manufacturing efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of microwave oven technology, and specifically refers to a microwave oven door lock. Background Technology

[0002] Chinese utility model patent 2003201069336 discloses a safety control device for a microwave oven. This device utilizes three levers that contact the upper and lower door hooks of a door hook assembly, and also contact the contact points of three microswitches. The distance from the point of contact between each lever and the door hook to the lever's pivot is greater than the distance from the point of contact between the lever and the corresponding microswitch to the lever's pivot. This allows the three switches to function normally within a wider range of operation. This design facilitates manufacturing and assembly, and reduces maintenance and adjustments.

[0003] However, in this invention, multiple microswitches are placed on the same side of the microwave oven, which leads to a complex internal structural layout of the casing on that side, making the installation process inconvenient and thus affecting manufacturing efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a microwave oven door lock with a simpler structure and a more reasonable layout.

[0005] The purpose of this utility model is achieved as follows:

[0006] A microwave oven door lock, comprising:

[0007] The door body has locking hooks on both the left and right sides, and the locking hooks are connected to a reset component that makes the hook lock tend to move downward.

[0008] Two locking seats are respectively installed on both sides of the microwave oven. Each locking seat has a locking port for the locking hook to enter, and the locking port has a locking ramp in the direction of movement of the locking hook; and at least two microswitches are respectively installed in the two locking seats.

[0009] When the door is closed, the lock hook slides along the locking ramp, and when the offset hook head on the lock hook is located in the locking seat, it hooks onto the locking port through the reset member and triggers the micro switch located in the locking seat.

[0010] Furthermore, at least one locking seat is provided with two micro switches, including a first micro switch and a second micro switch, which are respectively disposed on both sides of the locking seat; the bias hook contacts the first micro switch and the second micro switch in sequence during the process of entering the locking port.

[0011] Furthermore, the first micro switch and the second micro switch are connected in series.

[0012] Furthermore, a switch trigger is provided on one side of the first micro switch, which is used to touch the switch trigger when the locking hook slides along the locking ramp, and drive the first micro switch to work through the switch trigger.

[0013] Furthermore, one end of the switch trigger is rotatably connected to the locking seat, and the other end is provided with an arc-shaped curved portion that contacts the lock hook.

[0014] Furthermore, the locking seat is provided with several locking rods, the ends of which are locked with inverted buckles for fixing the micro switch by the several locking rods.

[0015] Furthermore, the microswitches in the two locking seats are used to connect different working parts in the microwave oven, respectively.

[0016] Furthermore, the door body includes:

[0017] Exterior door glass;

[0018] A glass bracket is fixed to the outer door glass, and the central glass is fixed to the glass bracket;

[0019] The inner cover is fixed to the outer door glass and covers the glass bracket;

[0020] The glass support is rotatably provided with the locking hook, and the inner cover is provided with a locking hook groove for the locking hook to pass through.

[0021] The outstanding and beneficial technical effects of this utility model compared to the prior art are:

[0022] This patent allows users to install the lock hook and micro switch separately by setting two locking seats and configuring two corresponding locking hooks. It also simplifies the linkage triggering structure between the lock hook and the micro switch, thereby reducing manufacturing difficulty and speeding up manufacturing efficiency. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of a microwave oven.

[0024] Figure 2 This is a schematic diagram of the structure of the microwave oven's inner cavity.

[0025] Figure 3 This is a diagram showing the installation of the locking seat.

[0026] Figure 4 This is a structural diagram of the door.

[0027] Figure 5 This is an explosion diagram of the door.

[0028] Figure 6 This is a schematic diagram of the glass support structure.

[0029] Figure 7 This is a schematic diagram showing the connection between the locking seat and the door.

[0030] Figure 8 This is a schematic diagram of the structure when the locking hook just enters the locking seat.

[0031] Figure 9 This is a schematic diagram of the structure when the locking hook is fully inserted into the locking seat.

[0032] Figure 10 This is a structural diagram of a sliding door.

[0033] The meaning of the labels in the diagram:

[0034] 1. Door body; 11. Exterior door glass;

[0035] 12. Inner cover; 121. Shielding mesh section; 122. Wave-damping section; 1221. Wave-damping groove; 1222. Groove section; 123. Cover positioning hole; 124. Cover outer frame; 125. Shielding baffle; 126. Peripheral wall;

[0036] 13. Interior door glass;

[0037] 14. Central glass panel;

[0038] 16. Glass support; 161. First glass placement groove; 165. Locking hook; 1651. Reset component; 1652. Offset hook head; 1653. Locking hook groove; 168. Partition cavity;

[0039] 2. Frame; 21. Inner liner; 22. Outer liner; 23. Locking seat; 231. Locking port; 232. Locking ramp; 233. Locking clamp; 2331. Locking buckle; 241. First micro switch; 242. Second micro switch; 25. Switch trigger; 251. Arc-shaped bend; Detailed Implementation

[0040] The present invention will be further described below with reference to specific embodiments:

[0041] A microwave oven door lock includes a door body 1, two locking seats 23, and at least two microswitches. The door body 1 has rotatable locking hooks 165 on its left and right sides, each hook 165 connected to a reset member 1651 that causes it to move downwards. The two locking seats 23 are respectively located on both sides of the microwave oven. Each locking seat 23 has a locking opening 231 for the locking hooks 165 to enter, and the locking opening 231 has a locking inclined surface 232 located in the direction of movement of the locking hooks 165. The at least two microswitches are respectively installed in the two locking seats 23.

[0042] like Figure 1-3 As shown, the microwave oven door lock described in this patent is used in a microwave oven, which can be a microwave oven with integrated microwave and grill functions, a regular microwave oven, or a microwave oven with integrated microwave, steam, and grill functions. All of these microwave ovens include a frame 2, in which an inner liner 21 and an outer liner 22 are provided. One side of the inner liner 21 is open. The door 1 is rotatably disposed on the front side of the inner liner 21 to close it. The locking seat 23 is installed between the inner liner 21 and the outer liner 22. The locking seat 23 has a fastening hole, through which the locking seat 23 can be fixed to the outer liner 22. In some other microwave ovens, such as... Figure 10 As shown, the door 1 can be opened or closed by pulling it out by means of a pull-out guide rail provided between the door body and the inner liner.

[0043] The door body 1 includes an outer door glass 11, an inner cover 12, an inner door glass 13, and a central glass 14. The outer door glass 11 is located on the front side of the door body 1 and is generally provided with a handle for user operation. The inner cover 12 is fixed to the inside of the outer door glass 11. The inner cover 12 is provided with a shielding mesh portion 121 and a wave-damping portion 122 located on the outer edge of the shielding mesh portion 121. The inner door glass 13 is fixed to the shielding mesh portion 121 of the inner cover 12, and the central glass 14 is fixed in the inner cover 12.

[0044] like Figure 4 , 5 As shown, the inner cover 12 in this patent consists of two parts, including an outer frame 124 and a shielding baffle 125 connected in the outer frame 124. The outer frame 124 is square with a square opening structure in the center. The outer edge of the outer frame 124 is provided with a raised and annular peripheral wall 126, which allows it to cover the rear side of the outer door glass 11. The inner edge of the outer frame 124 is provided with an annular wave-blocking groove 1221. The wave-blocking groove 1221 and the peripheral wall 126 can be directly formed by stamping during the manufacturing of the outer frame 124. The shielding baffle 125 is square, and its size is slightly larger than the opening structure at the center of the outer frame 124 of the cover. The outer edge of the shielding baffle 125 is provided with a groove 1222. The groove 1222 is specifically a plurality of square groove structures sequentially opened on the outer edge of the shielding baffle 125. The shielding baffle 125 can be fixed to the opening structure at the center of the outer frame 124 of the cover by glue or welding, and the groove 1222 is located on the slot of the wave-blocking groove 1221. The shielding mesh 121 is opened on the shielding baffle 125, and the wave-blocking groove 1221 and the groove 1222 cooperate to form the wave-blocking part 122.

[0045] The inner door glass 13 is fixed to the shielding mesh portion 121 of the inner cover body 12. Specifically, the inner door glass 13 is glued to the shielding mesh portion 121, and the outer edge of the inner door glass 13 simultaneously covers the wave-damping groove 1221, so that the inner door glass 13 and the inner cover body 12 are connected to form a complete surface.

[0046] The central glass 14 is fixed in the inner cover 12. In this embodiment, the outer door glass 11 is fixed with a glass bracket 16 located in the inner cover 12. The glass bracket 16 is provided with a plurality of first glass placement grooves 161 for placing and positioning the central glass 14.

[0047] like Figure 5 , 6 As shown, two glass supports 16 are provided, each glass support 16 having a locking hook 165, which is rotatably mounted on the glass support 16. In fact, the glass support 16 is internally hollowed out, with several cavities formed therein. A connecting shaft is provided within each cavity, through which the locking hook 165 is mounted. The reset member 1651 includes a spring connected to the glass support 16, one end of which is fixed to the glass support 16, and the other end is hooked onto the locking hook 165, giving the locking hook 165 a downward rotation tendency.

[0048] The locking seat 23 is fixed on the outer shell 22 and is positioned opposite to the locking hook 165. The locking seat 23 is specifically a square frame with an internal installation space for installing the micro switch. One end of the frame is provided with a locking opening 231, which is square and has an inclined locking slope 232 on its lower side. After the locking seat 23 is installed on the outer shell 22, the locking opening 231 faces the door body 1 and is opposite to the locking hook 165.

[0049] like Figure 7-9 As shown, in this embodiment, one side of the locking seat 23 contains two microswitches, while the other side contains only one microswitch. In the locking seat 23 with two microswitches, the two microswitches are a first microswitch 241 and a second microswitch 242, respectively located on the upper and lower sides of the locking seat 23. Specifically, the locking seat 23 has several locking rods 233, with locking buckles 2331 at the ends of the locking rods 233. The microswitches are clamped by the locking rods 233 and limited by the locking buckles 2331, thus fixing the microswitches.

[0050] When the door 1 is closed, the locking hook 165 slides along the locking ramp 232 and gradually enters the locking seat 23. Specifically, the offset hook head 1652 at the end of the locking hook 165 slides against the locking ramp 232. After the end of the locking hook 165 enters the locking seat 23, the locking hook 165 moves downwards under the action of the reset member 1651, thus hooking the locking hook 165 onto the locking opening 231. Without the user applying external force, the offset hook head 1652 of the locking hook 165 supports the door 1, achieving the positioning of the door 1 after it is closed. The offset hook head 1652 triggers the second microswitch 242 located in the locking seat 23, thereby activating the device connected to the second microswitch 242 within the microwave oven, enabling the microwave oven to operate normally.

[0051] In fact, the first micro switch 241 and the second micro switch 242 are connected in series. A switch trigger 25 is provided on one side of the first micro switch 241. When the bias hook 1652 enters the locking seat 23, the bias hook 1652 will first contact the switch trigger 25, and then drive the first micro switch 241 to work through the switch trigger 25. Specifically, as follows... Figure 8 As shown, the switch trigger 25 is specifically a swing rod fixed in the locking seat 23. One end of the swing rod is provided with an arc-shaped curved part 251 that smoothly abuts against the offset hook 1652. The switch trigger 25 swings by the offset hook 1652 abutting against the arc-shaped curved part 251, thereby triggering the first micro switch 241 to work.

[0052] Both the first microswitch 241 and the second microswitch 242 can be used to trigger components connected to them in the microwave oven. By configuring two microswitches, when the locking hook 165 enters the locking seat 23, both microswitches can be triggered simultaneously, thereby achieving a double-safety start for the components connected to the first microswitch 241 and the second microswitch 242 in the microwave oven. This prevents the microwave oven components from failing to start properly due to poor contact between the locking hook 165 and the microswitches.

[0053] Similarly, in the locking seat 23 on the other side, the locking hook 165 slides along the locking ramp 232 into the locking seat 23 to trigger the micro switch located in the locking seat 23, and controls the component connected to the micro switch through the micro switch. Generally, the micro switches in the two locking seats 23 are connected to the microwave generator or the main switch in the microwave oven, respectively. The microwave oven can only work normally if both locking hooks 165 enter the two locking seats 23 at the same time and trigger the micro switches located therein.

[0054] When the user opens the door 1, the user applies outward force to grab the door 1, causing the locking hook 165 to swing upward against the reset force of the reset member 1651, so that the biased hook head 1652 gradually disengages from the locking port 231 and finally falls out of the locking port 231, thereby opening the door 1.

[0055] In summary, this patent allows users to install the locking hook 165 and the micro switch separately by setting two locking seats 23 and configuring two corresponding locking hooks 165. This simplifies the linkage triggering structure between the locking hook 165 and the micro switch, thereby reducing manufacturing difficulty and accelerating manufacturing efficiency.

[0056] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, all equivalent changes made to the structure, shape, and principle of the present utility model should be covered within the scope of protection of the present utility model.

[0057] It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the disclosed technical content. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0058] It should also be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or may be connected to an intermediary component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or indirectly connected to the other component through an intermediary component.

[0059] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

Claims

1. A microwave oven door lock, characterized in that, include: The door body (1) has a locking hook (165) on both the left and right sides. The locking hook (165) is connected to a reset piece (1651) that makes the hook lock have a downward movement tendency. Two locking seats (23) are respectively installed on both sides of the microwave oven. The locking seats (23) are provided with locking ports (231) for the locking hook (165) to enter. The locking ports (231) have locking slopes (232) located in the direction of movement of the locking hook (165). as well as At least two microswitches are installed in two locking seats (23), respectively; When the door (1) is closed, the lock hook (165) slides along the locking ramp (232), and when the offset hook head (1652) on the lock hook (165) is located on the locking seat (23), it hooks onto the locking port (231) through the reset member (1651) and triggers the micro switch located in the locking seat (23).

2. A microwave oven door lock according to claim 1, characterized in that: At least one locking seat (23) is provided with two micro switches, including a first micro switch (241) and a second micro switch (242), which are respectively disposed on both sides of the locking seat (23); the bias hook (1652) contacts the first micro switch (241) and the second micro switch (242) in sequence during the process of entering the locking port (231).

3. A microwave oven door lock according to claim 2, characterized in that: The first micro switch (241) is connected in series with the second micro switch (242).

4. A microwave oven door lock according to claim 2, characterized in that: A switch trigger (25) is provided on one side of the first micro switch (241) for touching the switch trigger (25) when the lock hook (165) slides along the locking ramp (232), and driving the first micro switch (241) to work through the switch trigger (25).

5. A microwave oven door lock according to claim 2, characterized in that: One end of the switch trigger (25) is rotatably connected to the locking seat (23), and the other end is provided with an arc-shaped curved part (251) that contacts the locking hook (165).

6. A microwave oven door lock according to claim 1, characterized in that: The locking seat (23) is provided with a plurality of locking clamps (233), and the ends of the locking clamps (233) are locked with buckles (2331) for fixing the micro switch by the plurality of locking clamps (233).

7. A microwave oven door lock according to claim 1, characterized in that: The microswitches in the two locking seats (23) are used to connect different working parts in the microwave oven respectively.

8. A microwave oven door lock according to claim 1, characterized in that, The gate body (1) includes: Exterior door glass (11); A glass bracket (16) is fixed to the outer door glass (11), and the central glass (14) is fixed through the glass bracket (16); The inner cover (12) is fixed to the outer door glass (11) and covers the glass bracket (16); The glass support (16) is rotatably provided with the locking hook (165), and the inner cover (12) is provided with a locking hook groove (1653) through which the locking hook (165) passes.

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