Electromagnetic cooking utensil

Abstract

The utility model discloses an electromagnetic cooking utensil which comprises a shell and a main control board arranged in the shell, the main control board comprises a wiring terminal connected with a power line, the shell comprises a base, an upper cover and a panel bonded with the upper cover, a water receiving box is arranged at the position, close to the wiring terminal, of the upper cover, and the water receiving box is connected with the base. The water receiving box receives seepage water between the portion, close to the wiring terminal, of the upper cover and the panel, a drainage plate is arranged between the bottom of the water receiving box and the base, the water receiving box is provided with a water leakage hole, the water leakage hole and the wiring terminal are located on the two sides of the drainage plate, and the base is provided with a drainage hole. A drainage structure enabling liquid to be rapidly drained to the drainage holes along the track is arranged on the side, facing the water leakage holes, of the drainage plate. According to the electromagnetic cooking utensil, effective waterproof protection can be carried out on the wiring terminal, so that the problem of short-circuit ignition is avoided.

Description

Technical field

[0001] The utility model relates to the technical field of kitchen appliances, in particular to an electromagnetic cooking utensil. [Background Technology]

[0002] Conventional electromagnetic cooking appliances include a housing and a main control board housed within the housing. The main control board includes terminals for connecting to a power cord. The housing comprises a base, a top cover, and a panel. The panel is bonded to the fixed top cover with silicone adhesive. This design prevents liquids, such as soup, from entering the housing through the gap between the panel and the top cover, potentially damaging internal electrical components. During assembly, the use of silicone adhesive to bond the panel and the top cover can lead to poor adhesion, i.e., adhesive failure or breakage. This can cause liquids, such as soup, to seep through the joint between the panel and the top cover. If the poor adhesion occurs between the top cover and the panel near the terminals, the infiltrated liquid can fall onto the terminals, causing a short circuit and spark, rendering the electromagnetic cooking appliance inoperable.

[0003] To this end, the prior art also discloses an electromagnetic cooking appliance, wherein the inner side of the shell is provided with a water receiving groove for receiving water seeping from the shell connection, the bottom wall of the water receiving groove is provided with a leakage hole, and the base is provided with a drainage hole below the leakage hole, so that the water in the water receiving groove can be discharged out of the shell through the leakage hole and the drainage hole. When the amount of water in the water receiving box is small, due to the molecular force and the small contact angle of the plastic shell, the liquid is more likely to adhere to the plastic shell, thereby hindering the flow of water; when the droplets are about to drip from the plastic shell, the surface tension of the liquid in the air makes it easier for the water to form droplets, and the volume will increase. When the gravity of the droplets is not enough to overcome the molecular force between the water and the plastic shell, the water cannot fall freely. As a result, the water in the water receiving box cannot be discharged in time, and later due to heat evaporation, it will diffuse in the shell, thereby affecting the life of the electrical components in the shell. [Utility Model Content]

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide an electromagnetic cooking appliance which can not only provide effective waterproof protection for the connection terminals to avoid the problem of short circuit and ignition, but also can prompt the water in the water collecting box to be discharged out of the shell in time.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] An electromagnetic cooking appliance includes a shell and a main control board arranged in the shell, the main control board including a wiring terminal connected to a power cord, the shell including a base, an upper cover and a panel bonded to the upper cover, a water collection box provided at a portion of the upper cover near the wiring terminal, the water collection box receiving water seepage between a portion of the upper cover near the wiring terminal and the panel, a drainage plate provided between the bottom of the water collection box and the base, the water collection box provided with a water leakage hole, the water leakage hole and the wiring terminal being located on both sides of the drainage plate, the base provided with a drainage hole, and a drainage structure provided on the side of the drainage plate facing the leakage hole for rapidly draining liquid along a trajectory toward the drainage hole.

[0007] In the above-mentioned electromagnetic cooking appliance, the drainage structure includes vertically extending drainage grooves and vertically extending drainage ribs. Multiple drainage grooves are spaced apart along the length direction of the drainage plate, and the drainage ribs are formed in the portion of the drainage plate located between two adjacent drainage grooves.

[0008] In the above electromagnetic cooking appliance, the drainage structure includes vertically extending drainage ribs, and a plurality of drainage ribs extend vertically and are protruded on a side of the drainage plate facing the water leakage hole.

[0009] In the above-mentioned electromagnetic cooking appliance, the drainage structure includes vertically extending drainage holes and vertically extending drainage ribs. The multiple drainage holes are spaced apart along the length direction of the drainage plate, and the drainage ribs are formed in the portion of the drainage plate located between two adjacent drainage holes.

[0010] In the above electromagnetic cooking appliance, the main control board further includes a substrate, the connection terminal is arranged on the top surface of the substrate, and the bottom end of the drainage hole is arranged higher than the top surface of the substrate.

[0011] In the above-mentioned electromagnetic cooking appliance, the main control board is installed on the bottom wall of the base, the drainage plate is connected between the side wall of the base and the bottom of the water receiving box, and the drainage hole is provided on the side wall of the base and is located on the same side of the drainage plate as the leakage hole.

[0012] In the above electromagnetic cooking appliance, the projection of the water receiving box on the bottom wall of the base covers the projection of the connection terminal on the bottom wall of the base.

[0013] In the above electromagnetic cooking appliance, the bottom wall of the water receiving box, located above the connection terminal, is arched toward the panel to form an avoidance groove.

[0014] In the above electromagnetic cooking appliance, the upper cover is a frame-shaped structure, and the inner ring side of the upper cover is provided with connecting ribs extending inwards, and the connecting ribs are connected to the junction box.

[0015] In the above-mentioned electromagnetic cooking appliance, the water receiving box includes a first box body protruding from the side of the drainage plate toward the leakage hole and a second box body protruding from the side of the drainage plate toward the connection terminal. The seepage water received by the second box body flows toward the first box body. The first box body has a first side wall extending along the length direction of the drainage plate, and the first side wall is open to form the leakage hole.

[0016] Beneficial effects of the utility model:

[0017] 1. In the present invention, a water receiving box is provided at the part of the upper cover near the wiring terminals. The water receiving box receives water seepage between the part of the upper cover near the wiring terminals and the panel. In this way, if the part of the upper cover near the wiring terminals and the panel is poorly bonded and some liquid seeps in, the seeped soup or other liquid will flow directly into the water receiving box. Since a drainage structure is provided between the bottom of the water receiving box and the base, the water receiving box is provided with a leakage hole. The leakage hole and the wiring terminals are located on both sides of the drainage plate. In addition, the base is provided with a drainage hole. Therefore, the liquid accumulated in the water receiving box can be discharged through the leakage hole to the drainage structure. When the amount of water in the water receiving box is small, the water flow to the drainage plate is small. At this time, the design of the drainage structure can utilize the hydrophilicity of the liquid on the plastic shell. And the surface tension of the liquid, when the droplets from the leakage hole of the water receiving box grow to a certain extent or the area of the liquid adhering to the lower surface of the water receiving box increases to a certain extent, the liquid is forced to contact the drainage structure, and then the molecular force between the liquid and the drainage structure and the surface tension of the liquid are used to guide the liquid to flow quickly along a specific trajectory to the drainage hole, so that a small amount of water in the water receiving box can be discharged out of the shell in time, thereby solving the problem that when there is a small amount of water, the liquid cannot flow from the leakage hole to the drainage hole in a free fall manner through the air, and avoids the problem that liquids such as soup cannot be discharged from the water receiving box in time and evaporate and diffuse due to heat, thereby ensuring the normal use of the electromagnetic cooking appliance; in addition, this design structure is also relatively simple and low in cost.

[0018] 2. The drainage structure includes vertically extending drainage grooves and vertically extending drainage ribs. Multiple drainage grooves are spaced apart along the length of the drainage plate, and the drainage plate is located between two adjacent drainage grooves to form drainage ribs. With this design, the unevenness of the multiple drainage grooves and drainage ribs can be used to accumulate liquid in the drainage grooves as much as possible, making it easier for water droplets to form and flow along the drainage grooves and drainage ribs. The multiple drainage grooves and multiple drainage ribs can form multiple drainage paths, thereby improving drainage efficiency. In addition, the drainage grooves and drainage ribs both extend vertically, so the length of each drainage path can be shortened, thereby accelerating the flow of liquid to the drainage hole. At the same time, this design also prevents the liquid on the side of the drainage plate facing the drainage hole from flowing to the terminal.

[0019] 3. The drainage structure includes multiple vertically extending drainage ribs, which are protruding from the side of the drainage plate facing the drain hole. This design allows water droplets to form more easily and flow along the ribs. The multiple ribs also create multiple drainage paths, improving drainage efficiency. Furthermore, the vertical extension of the ribs shortens the drainage paths, accelerating the flow of liquid to the drain hole. This design also increases the strength of the drainage plate.

[0020] 4. The drainage structure includes vertically extending drainage holes and vertically extending drainage ribs. The multiple drainage holes are spaced apart along the length of the drainage plate, and the drainage ribs are formed on the portion of the drainage plate between two adjacent drainage holes. This design allows water droplets to form more easily and flow along the drainage holes and ribs through the unevenness of the multiple drainage holes and ribs. The multiple drainage holes and ribs can form multiple drainage paths, thereby improving drainage efficiency. In addition, the drainage holes and ribs extend vertically, so the length of each drainage path can be shortened, thereby accelerating the flow of liquid to the drain hole. At the same time, this design can also dissipate heat from the side of the drainage plate close to the terminal to the outside of the shell through the drainage holes.

[0021] 5. The main control board also includes a base plate, with the wiring terminals located on the top surface of the base plate. The bottom end of the drainage hole is located higher than the top surface of the base plate. This design can block liquid entering through the drainage hole through the drainage plate, preventing liquid from entering the main control board through the drainage hole and causing a short circuit or spark at the wiring terminals.

[0022] 6. The main control board is mounted on the bottom wall of the base. The drainage plate is connected between the side wall of the base and the bottom of the water collection box. The drainage hole is located on the side wall of the base and on the same side of the drainage plate as the leakage hole. Locating the drainage hole on the side wall of the base rather than on the bottom wall of the base elevates the drainage hole, making it less likely that outside water will enter the drainage hole, thereby reducing the risk of outside water entering the housing through the drainage hole. Furthermore, locating the drainage hole on the side wall of the base shortens the drainage path, expediting the discharge of liquid from the housing. Finally, the drainage hole and the leakage hole are located on the same side of the drainage plate. This prevents the water connection terminals from coming into contact with water by preventing the drainage plate from blocking liquid from flowing toward the side of the drainage plate facing the terminal.

[0023] 7. The projection of the water box on the bottom wall of the base overlaps the projection of the wiring terminals on the bottom wall of the base. This design increases the volume of the water box, thereby increasing the water storage capacity of the water box and reducing the risk of liquid overflowing from the water box. In addition, even if the liquid accumulated in the water box overflows, it can prevent the overflowed liquid from dripping onto the wiring terminals, thereby preventing the wiring terminals from short-circuiting and sparking when exposed to water.

[0024] 8. The bottom wall of the water collection box, located above the wiring terminals, is arched toward the panel to form a relief groove. This design allows the power cord to connect to the wiring terminals via screws, so that the relief groove can avoid the screws and prevent the water collection box from interfering with the screws, which could prevent the top cover from being assembled with the base.

[0025] 9. The upper cover is a frame-shaped structure, with inward-extending connecting ribs on the inner ring side of the upper cover, which connect to the junction box. This design allows the upper cover, water box, and connecting ribs to be integrally formed through the injection molding process, simplifying the assembly steps of the upper cover.

[0026] 10. The water collection box includes a first box body protruding from the drainage plate toward the drain hole, and a second box body protruding from the drainage plate toward the terminal block. The seepage water received by the second box body flows toward the first box body. The first box body has a first side wall extending along the length of the drainage plate, and the first side wall is open to form the drain hole. With this design, if a large amount of liquid is discharged from the drain hole, the bottom wall of the first box body protrudes from the drainage plate, allowing the liquid to fall directly onto the base, so that the liquid is discharged through the drain hole as quickly as possible, preventing a large amount of liquid from flowing along the drainage structure and diffusing laterally into the terminal block. If a small amount of liquid is discharged from the drain hole, the liquid can flow along the bottom surface of the bottom wall of the first box body onto the drain plate and quickly flow to the drain hole under the guidance of the drainage structure.

[0027] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and drawings.

Brief Description of the Drawings

[0028] The present invention will be further described below with reference to the accompanying drawings:

[0029] Figure 1 This is an exploded schematic diagram of the electromagnetic cooking device in the first embodiment of the present invention;

[0030] Figure 2 This is a schematic structural diagram of the upper cover in Example 1 of the present utility model;

[0031] Figure 3 for Figure 2 A partial enlarged schematic diagram;

[0032] Figure 4 This is a structural diagram of the base in Example 1 of the present utility model;

[0033] Figure 5 This is a three-dimensional cross-sectional view of the electromagnetic cooking device in Example 1 of the present invention after removing the panel Figure 1 ;

[0034] Figure 6 for Figure 5 A partial enlarged schematic diagram of B in the middle;

[0035] Figure 7 This is a three-dimensional cross-sectional view of the electromagnetic cooking device in Example 1 of the present invention after removing the panel Figure 2 ;

[0036] Figure 8 This is a schematic structural diagram of the guide plate in the second embodiment of the present invention.

[0037] Reference numerals:

[0038] 100. Main control board; 110. Baseboard; 120. Wiring terminal; 200. Electromagnetic wire reel; 300. Power cord; 400. Base; 401. Drain hole; 410. Bottom wall of base; 411. Support rib; 420. Side wall of base; 421. Perforation; 422. Water retaining rib; 423. Air outlet; 500. Upper cover; 510. Installation port; 520. Water collecting box; 521. Leakage hole; 522. Avoidance groove; 523. First box body; 524. Second box body; 530. Connecting rib; 600. Panel; 700. Drainage plate; 710. Drainage groove; 720. Drainage rib; 730. Drainage hole; 800. Baffle. [Specific implementation method]

[0039] The utility model provides an electromagnetic cooking appliance, comprising a shell and a main control board arranged in the shell, the main control board including a wiring terminal connected to a power line, the shell comprising a base, an upper cover and a panel bonded to the upper cover, a water receiving box provided at a portion of the upper cover near the wiring terminal, the water receiving box receiving water seepage between a portion of the upper cover near the wiring terminal and the panel, a drainage plate provided between the bottom of the water receiving box and the base, the water receiving box provided with a water leakage hole, the water leakage hole and the wiring terminal being located on both sides of the drainage plate, the base provided with a drainage hole, and a drainage structure provided on the side of the drainage plate facing the leakage hole for rapidly draining liquid along a trajectory toward the drainage hole.

[0040] In the present invention, a water collecting box is provided at the part of the upper cover near the wiring terminals, and the water collecting box receives water seepage between the part of the upper cover near the wiring terminals and the panel. In this way, if the part of the upper cover near the wiring terminals and the panel are poorly bonded and some liquid seeps in, the seeped soup or other liquid will directly flow into the water collecting box. Since a drainage plate is provided between the bottom of the water collecting box and the base, the water collecting box is provided with a water leakage hole, the leakage hole and the wiring terminals are located on both sides of the drainage plate, and the base is provided with a drainage hole, the liquid accumulated in the water collecting box can be discharged through the leakage hole and flow into the drainage plate. When the amount of water in the water collecting box is small, the water flow to the drainage plate is small. At this time, the design of the drainage structure can utilize the hydrophilicity of the liquid on the plastic shell and The surface tension of the liquid forces the liquid to contact the drainage structure when the droplets from the water leakage hole of the water receiving box grow to a certain length or the area of the liquid adhering to the lower surface of the water receiving box increases to a certain extent. The molecular force between the liquid and the drainage structure and the surface tension of the liquid are then used to guide the liquid to flow rapidly along a specific trajectory to the drainage hole, so that a small amount of water in the water receiving box can be discharged out of the shell in time. This solves the problem that when there is a small amount of water, the liquid cannot flow from the leakage hole to the drainage hole in a free fall manner through the air, avoids the problem that liquids such as soup cannot be discharged from the water receiving box in time and evaporate and diffuse due to heat, and ensures the normal use of the electromagnetic cooking appliance. In addition, this design structure is relatively simple and low in cost.

[0041] The technical solutions of the embodiments of the present invention are explained and illustrated below in conjunction with the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention, not all of them. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without making creative work all fall within the scope of protection of the present invention. In addition, it should be understood that the following words indicating orientation or positional relationship such as "up", "down", "left", "right", "longitudinal", "lateral", "inside", "outside", "vertical", "horizontal", "top", "bottom", etc. are only based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device / element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0042] Example 1

[0043] like Figures 1 to 7As shown, the electromagnetic cooking appliance in this embodiment is an induction cooker, which includes a housing, a main control board 100 and an electromagnetic wire reel 200 arranged in the housing. The main control board 100 includes a base 110 and a connection terminal 120 arranged on the top surface of the base 110. The connection terminal 120 is connected to the power cord 300 by screws. The housing includes a base 400, an upper cover 500 and a panel 600. The upper cover 500 is a frame-shaped structure and has a mounting opening 510. The horizontal projections of the main control board 100 and the electromagnetic wire reel 200 on the base 400 are located within the horizontal projection of the mounting opening 510 on the base 400, and the panel 600 is bonded and fixed thereto. The upper cover 500 covers the mounting opening 510 and is preferably bonded with silicone adhesive. The main control board 100 is arranged on one side close to the upper cover 500, and a water receiving box 520 is provided at the position of the upper cover 500 close to the wiring terminal 120. The water receiving box 520 receives water seepage between the position of the upper cover 500 close to the wiring terminal 120 and the panel 600. In this way, if the position of the upper cover 500 close to the wiring terminal 120 and the panel 600 is poorly bonded and some liquid seeps in, the seeped soup or other liquid will flow directly into the water receiving box 520 to avoid dripping directly onto the wiring terminal 120 and causing a short circuit and sparking. A drainage plate 700 is provided between the bottom of the water receiving box 520 and the base 400, and the water receiving box 520 is provided with a leakage hole 521. The leakage hole 521 and the terminal 120 are located on both sides of the drainage plate 700. The base 400 is provided with a drainage hole 401. The drainage plate 700 is provided with a drainage structure on the side facing the leakage hole 521 to allow the liquid to be quickly discharged to the drainage hole 401 along the trajectory. Therefore, the liquid accumulated in the water receiving box can be discharged through the leakage hole 521 and flow onto the drainage plate 700. When the amount of water in the water receiving box 520 is small, the water flow to the drainage plate 700 is small. At this time, the design of the drainage structure can utilize the hydrophilicity of the liquid on the plastic shell and the surface tension of the liquid so that when the liquid flows out of the water receiving box 520, the water flow to the drainage plate 700 is small. When the droplets in the leakage hole 20 grow to a certain extent or the area of the liquid adhering to the lower surface of the water receiving box 520 increases to a certain extent, the liquid is forced to contact the drainage structure, and then the molecular force between the liquid and the drainage structure and the surface tension of the liquid are used to guide the liquid to flow quickly along a specific trajectory to the drainage hole 401, so that a small amount of water in the water receiving box 520 can be discharged out of the shell in time. This solves the problem that when there is a small amount of water, the liquid cannot flow from the leakage hole to the drainage hole in a free fall manner through the air, avoids the problem that liquids such as soup cannot be discharged from the water receiving box in time and evaporate and diffuse due to heat, and ensures the normal use of the electromagnetic cooking appliance; in addition, this design structure is also relatively simple and low in cost.

[0044] Specifically, in this embodiment, the drain plate 700 is integrally formed with the base 400 and extends vertically upward. The top of the drain plate 700 abuts against the bottom wall of the water receiving box 520. The drainage hole 401 and the leakage hole 521 are located on the side of the drain plate 700 away from the terminal 120. In this way, the drain plate 700 can block the liquid from flowing to the side of the drain plate 700 facing the terminal 120 to prevent the terminal 120 from contacting water. The drainage structure includes a vertically extending drainage groove 710 and a vertically extending drainage rib 720. The plurality of drainage grooves 710 are spaced apart along the length of the drain plate 700. The drainage rib 720 is formed on the portion of the drain plate 700 located between two adjacent drainage grooves 710. The drainage groove 710 extends downward from the top of the side of the drain plate 700 away from the terminal 120. With this design, the unevenness of the plurality of drainage grooves 710 and the drainage rib 720 can minimize the amount of liquid accumulated. The water is gathered in the drainage groove so that water droplets are more likely to form and flow along the drainage groove 710 and the drainage rib 720. The multiple drainage grooves 710 and the multiple drainage ribs 720 can form multiple drainage paths, thereby improving the drainage efficiency. In addition, the drainage grooves 710 and the drainage ribs 720 are extended vertically, so the length of each drainage path can be shortened, thereby accelerating the flow of liquid to the drainage hole. At the same time, this design also prevents the liquid on the side of the drainage plate 700 facing the drainage hole 401 from flowing to the terminal 120.

[0045] In this embodiment, the base 400 includes a base bottom wall 410 and a base side wall 420. The base bottom wall 410 is provided with support ribs 411. The substrate 110 is supported on the support ribs 411 and fixed by screws, so that the substrate 110 is spaced a certain distance from the base bottom wall 410 to achieve waterproofing. The drain plate 700 is connected between the base side wall 420 and the bottom of the water receiving box 520. The drain hole 401 is provided on the base side wall 420, with the bottom of the drain plate 700 being lower than the bottom end of the drain hole 401. Compared to providing the drain hole 401 on the base bottom wall 410, providing the drain hole 401 on the base side wall 420 can raise the position of the drain hole 401, thereby reducing the difficulty for external water to enter the drain hole 401 and thereby reducing the risk of external water entering the housing through the drain hole 401. Furthermore, providing the drain hole 401 on the base side wall 420 can shorten the drainage path, thereby accelerating the discharge of liquid from the housing.

[0046] Preferably, in this embodiment, the water receiving box 520 is located above the wiring terminals 120 and extends toward the center of the mounting opening 510. The projection of the water receiving box 520 on the base bottom wall 410 overlaps the projection of the wiring terminals 120 on the base bottom wall 410. This design increases the volume of the water receiving box 520, thereby increasing the water storage capacity of the water receiving box 520 and reducing the risk of liquid overflowing from the water receiving box 520. Furthermore, even if the liquid accumulated in the water receiving box 520 overflows, the overflowed liquid is prevented from dripping onto the wiring terminals 120, thereby preventing the wiring terminals 120 from short-circuiting and sparking when exposed to water.

[0047] Preferably, in this embodiment, the bottom wall of the water receiving box 520, located above the terminal block 120, is arched toward the panel 600 to form a relief groove 522. With this design, since the power cord 300 is connected to the terminal block 120 via screws, the relief groove 522 allows for the screws to pass through, preventing interference between the water receiving box 520 and the screws, which could prevent the upper cover 500 from being assembled with the base 400.

[0048] In this embodiment, the water receiving box 520 and the upper cover 500 are integrally formed by injection molding. To enhance the connection reliability between the water receiving box 520 and the upper cover 500, in this embodiment, an inwardly extending connecting rib 530 is provided on the inner ring side of the upper cover 500. The connecting rib 530 is located within the water receiving box 520 and connected to the bottom wall of the water receiving box 520. This design allows the upper cover 500, water receiving box 520, and connecting rib 530 to be integrally formed by the injection molding process, thereby simplifying the assembly steps of the upper cover 500.

[0049] Secondly, the water receiving box 520 in this embodiment includes a first box body 523 and a second box body 524. The top of the guide plate 700 abuts against the connection between the first box body 523 and the second box body 524, so that the first box body 523 protrudes from the side of the guide plate 700 facing the leakage hole 521, and the second box body 524 protrudes from the side of the guide plate 700 facing the wiring terminal 120. The projection of the second box body 524 on the bottom wall 410 of the base is located within the installation opening 510, and the projection of the second box body 524 on the bottom wall 410 of the base is located within the projection of the upper cover 500 on the bottom wall 410 of the base. The second box body 524 is used to receive seepage water, and the liquid in the second box body 524 can flow to the first box body 523. The first box body 523 has a first side wall extending along the length direction of the guide plate 700, and the first side wall is open to form the leakage hole 521. With such a design, in the case where a large amount of liquid is discharged from the leakage hole 521, the bottom wall of the first box body 523 protrudes from the drainage plate 700, so that the liquid can fall directly onto the base 400, so that the liquid can be discharged through the drainage hole 401 as soon as possible, avoiding a large amount of liquid flowing along the drainage structure and diffusing laterally into the side of the terminal 120. In the case where a small amount of liquid is discharged from the leakage hole 521, the liquid can flow along the bottom surface of the bottom wall of the first box body 523 into the drainage plate 700 and quickly flow to the drainage hole 401 under the guidance of the drainage structure.

[0050] Finally, in this embodiment, the rear side of the base side wall 420 is provided with a through-hole 421 for the power cord 300 to pass through, the electromagnetic wire reel 200 is arranged behind the main control board 100, and the base bottom wall 410 is also provided with a water retaining rib 422. The water retaining rib 422 and the drain plate 700 are located on the same side of the base side wall 420. The rear end of the water retaining rib 422 extends to the rear side of the base side wall 420, and the front end of the water retaining rib 422 extends to the drain plate 700 and exceeds the end of the drain plate 700 close to the through-hole 421. The water retaining rib 422 is located on the inner side of the drain plate 700, and the base side wall 420 corresponding to the water retaining rib 422 is provided with an air outlet 423. When the amount of liquid is large, the air outlet 423 can play a drainage role, and the water retaining rib 422 prevents the liquid from flowing to the bottom of the electromagnetic wire reel 200.

[0051] It is understandable that in other embodiments of the present invention, the water leakage hole may also be provided on the bottom wall of the first box body.

[0052] It is understandable that in other embodiments of the present invention, the drainage groove and the drainage rib may further extend spirally downward or obliquely downward.

[0053] It is understandable that in other embodiments of the present invention, the drainage plate is independently processed and formed, a slot is provided on the side wall of the base, the bottom of the drainage plate is inserted into the slot, and the top of the drainage plate is against the bottom of the water receiving box.

[0054] It is understandable that in other embodiments of the present invention, the water receiving box is independently processed and formed and fixed to the upper cover by bonding, snap connection or screw connection.

[0055] It is understandable that in other embodiments of the present invention, in order to avoid the problem of water overflow in the water receiving box, the top of the side wall of the second box body is bonded and fixed to the panel to prevent water in the water receiving box from overflowing.

[0056] Example 2

[0057] like Figure 8 As shown, compared with the first embodiment, the difference of this embodiment is that the drainage structure includes vertically extending drainage holes 730 and vertically extending drainage ribs 720. The multiple drainage holes 730 are spaced apart along the length of the drainage plate 700, and the drainage ribs 720 are formed in the portion of the drainage plate 700 located between two adjacent drainage holes 730. This design makes it easier for water droplets to form and flow along the drainage holes 730 and drainage ribs 720 through the unevenness of the multiple drainage holes 730 and drainage ribs 720. The multiple drainage holes 730 and the multiple drainage ribs 720 can form multiple drainage paths, thereby improving drainage efficiency. In addition, the drainage holes 730 and the drainage ribs 720 all extend vertically, so the length of each drainage path can be shortened, thereby accelerating the flow of liquid to the drain hole. At the same time, this design can also allow the heat on the side of the drainage plate 700 close to the terminal 120 to be dissipated to the outside of the shell through the drainage holes 730.

[0058] Preferably, the bottom end of the drainage hole 730 is higher than the top surface of the substrate 110. With this design, the drainage plate 700 can block the liquid entering through the drainage hole 401, thereby preventing the liquid from entering the main control board 100 through the drainage hole 730 and causing the terminal 120 to short-circuit and ignite.

[0059] It is understood that in other embodiments of the present invention, the drainage structure includes vertically extending drainage ribs, with multiple drainage ribs extending vertically and protruding from the side of the drainage plate facing the drain hole. This design allows the protrusions of the multiple drainage ribs to more easily form water droplets and flow along the ribs. The multiple drainage ribs can also form multiple drainage paths, thereby improving drainage efficiency. In addition, the vertical extension of the drainage ribs can shorten the drainage path, thereby accelerating the flow of liquid to the drain hole. At the same time, this design also increases the strength of the drainage plate.

[0060] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Those skilled in the art will understand that the present invention includes, but is not limited to, the contents described in the accompanying drawings and the above specific embodiments. Any modifications that do not deviate from the functional and structural principles of the present invention are intended to be included within the scope of the claims.

Claims

1. An electromagnetic cooking appliance comprising a housing and a main control board disposed within the housing, the main control board including a terminal connected to a power cord, the housing comprising a base, an upper cover, and a panel bonded to the upper cover, characterized in that: A water receiving box is provided at the position of the upper cover near the wiring terminals, and the water receiving box receives water seepage between the position of the upper cover near the wiring terminals and the panel. A drainage plate is provided between the bottom of the water receiving box and the base, and the water receiving box is provided with a leakage hole. The leakage hole and the wiring terminals are located on both sides of the drainage plate. The base is provided with a drainage hole, and a drainage structure is provided on the side of the drainage plate facing the leakage hole to allow the liquid to be quickly discharged to the drainage hole along the trajectory.

2. The electromagnetic cooking appliance according to claim 1, wherein The drainage structure includes vertically extending drainage grooves and vertically extending drainage ribs. A plurality of the drainage grooves are spaced apart along the length direction of the drainage plate. The drainage ribs are formed on the portion of the drainage plate located between two adjacent drainage grooves.

3. The electromagnetic cooking appliance according to claim 1, wherein The drainage structure includes vertically extending drainage ribs, and a plurality of drainage ribs extend vertically and are protruded on a side of the drainage plate facing the water leakage hole.

4. The electromagnetic cooking appliance according to claim 1, wherein The drainage structure includes vertically extending drainage holes and vertically extending drainage ribs. A plurality of the drainage holes are spaced apart along the length direction of the drainage plate. The drainage ribs are formed on the portion of the drainage plate located between two adjacent drainage holes.

5. The electromagnetic cooking appliance according to claim 4, wherein: The main control board further includes a substrate, the connection terminal is arranged on the top surface of the substrate, and the bottom end of the drainage hole is arranged higher than the top surface of the substrate.

6. The electromagnetic cooking appliance according to claim 1, wherein The main control board is mounted on the bottom wall of the base, the drainage plate is connected between the side wall of the base and the bottom of the water receiving box, and the drainage hole is provided on the side wall of the base and is located on the same side of the drainage plate as the leakage hole.

7. The electromagnetic cooking appliance according to claim 1, wherein: The projection of the water receiving box on the bottom wall of the base covers the projection of the wiring terminal on the bottom wall of the base.

8. The electromagnetic cooking appliance according to claim 7, wherein: The bottom wall of the water receiving box, located above the wiring terminal, is arched toward the panel to form an avoidance groove.

9. The electromagnetic cooking appliance according to any one of claims 1 to 8, characterized in that: The upper cover is a frame-shaped structure. The inner ring side of the upper cover is provided with connecting ribs extending inwards, and the connecting ribs are connected to the junction box.

10. The electromagnetic cooking appliance according to any one of claims 1 to 8, characterized in that: The water receiving box includes a first box body protruding from the side of the drainage plate toward the leakage hole and a second box body protruding from the side of the drainage plate toward the wiring terminal. The seepage water received by the second box body flows toward the first box body. The first box body has a first side wall extending along the length direction of the drainage plate, and the first side wall is open to form the leakage hole.

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