Electric oven with waterproof structure
By employing a combination design of inner lining and outer shell in the electric oven, using snap-fit edges and raised edges to prevent water from entering, and a flared waterproof sleeve to stop water from flowing in, the electric oven achieves a waterproof effect, solves the risk of electric leakage caused by water ingress, ensures electrical safety, and facilitates cleaning.
Patent Information
- Application Number
- CN202423188607.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-12-24
AI Technical Summary
When existing electric ovens are used outdoors, water can easily enter the oven cavity through gaps, leading to potential electrical leakage hazards. Furthermore, the heating unit is fixed and cannot be disassembled, increasing the risk of moisture-induced breakdown.
An electric oven with a waterproof structure was designed, which uses a combination of inner lining and outer shell, with snap-fit edges and raised edges to prevent water from entering, a flared waterproof sleeve to prevent water from flowing in, a detachable electric heating element, and a fixed cover to prevent water from entering and ensure electrical safety.
The electric oven's waterproof performance has been improved, preventing water from entering the oven body, ensuring the safety of electrical devices, meeting outdoor use requirements, and facilitating cleaning and maintenance.
Smart Images

Figure CN223640583U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electric oven technology, specifically to an electric oven with a waterproof structure. Background Technology
[0002] Existing electric ovens must pass waterproof certification to be used outdoors. However, electric ovens contain electrical components inside, and during outdoor use, water can easily enter the oven cavity through gaps, posing a safety hazard of water ingress and potential electrical leakage.
[0003] Furthermore, the heating element of an electric oven is typically fixed to the oven body and cannot be removed. That is, one end of the heating element extends into the oven body through a mounting hole and connects to the power supply, while the other end remains exposed inside the oven body. This fixed installation prevents water from entering the oven body through the mounting hole, which could cause moisture inside the oven and pose a risk of electrical leakage. Utility Model Content
[0004] The purpose of this invention is to provide an electric oven with a waterproof structure that improves waterproof performance.
[0005] The purpose of this utility model is achieved as follows.
[0006] An electric oven with a waterproof structure includes an oven body, which includes an outer shell and an inner lining. The inner lining is installed on the outer shell, and the outer edge of the inner lining is provided with a snap-fit edge. The inner edge of the top of the outer shell is provided with an upward-facing protrusion. The outer edge of the inner lining is placed on the top of the outer shell, and the snap-fit edge is placed outside the protrusion. The bottom of the snap-fit edge rests on the top surface of the outer shell.
[0007] The outer shell and inner lining of this utility model are easy to assemble, and the snap-fit and raised edge design is waterproof, preventing water from entering the furnace body and improving the waterproof performance of the furnace body.
[0008] Furthermore, the outer edge of the inner lining is provided with a snap-on edge, and the inner edge of the top of the outer shell is provided with a raised edge. The outer edge of the inner lining is placed on the top of the outer shell, and the snap-on edge is placed outside the raised edge. The snap-on edge and the raised edge are fastened together.
[0009] Furthermore, the outer shell is provided with a fixing stud, which abuts against the bottom surface of the outer edge of the inner liner. The outer edge of the inner liner is provided with a positioning hole corresponding to the fixing stud, and the screw passes through the positioning hole and is threadedly connected to the fixing stud.
[0010] The outer shell and inner liner are simple and easy to install. The fixing studs support the outer edge of the inner liner, preventing deformation of the snap-fit edge from causing the gap between the snap-fit edge and the raised edge to widen.
[0011] Furthermore, a furnace cavity for accommodating a power supply device is formed between the outer shell and the inner lining. The inner lining is provided with a heating cavity for accommodating an electric heating device. The inner lining is provided with the aforementioned mounting hole, and a waterproof sleeve is provided inside the mounting hole. The power receiving end of the electric heating device passes through the waterproof sleeve and is electrically connected to the power supply device inside the furnace.
[0012] The waterproof sleeve prevents downward-flowing water from entering the oven body through the mounting holes, ensuring the electric oven meets waterproof requirements and can be used outdoors.
[0013] Furthermore, the waterproof sleeve is trumpet-shaped, with the inner diameter of the waterproof sleeve being smaller than the outer diameter. The inner edge of the waterproof sleeve is inserted into the mounting hole, while the outer edge of the waterproof sleeve is placed outside the mounting hole.
[0014] The shape of the waterproof sleeve allows downward-flowing water to pass over both sides, thus preventing water from entering the furnace body. At the same time, the waterproof sleeve facilitates the insertion of the electrical connection terminal of the electric heating device into the furnace body.
[0015] Furthermore, the power supply device includes an electrical coupler, and the power receiving end of the electric heating device is pin-shaped. The power receiving end of the electric heating device passes through a waterproof sleeve and is plugged into the conductive socket of the electrical coupler for conductive connection.
[0016] The electric heating element is detachable, making it easy for users to clean the lining.
[0017] Furthermore, a fixing cover is provided on the power receiving end of the electric heating device. The fixing cover is open to the side facing the waterproof sleeve and the bottom surface, and the fixing cover covers the waterproof sleeve.
[0018] While the fixed cover supports the electric heating device, it also allows water to flow into the furnace body through the opening of the waterproof sleeve, thus improving the waterproof effect.
[0019] This invention features an easy-to-assemble outer shell and inner lining. The snap-fit and raised edge design prevents water from entering the oven body, improving its waterproof performance. Installation of the outer shell and inner lining is simple and easy; the fixing studs support the outer edge of the inner lining, preventing deformation of the snap-fit and widening of the gap between the snap-fit and raised edge. Compared with existing technologies, this invention prevents downward-flowing water from entering the oven body through the mounting holes, meeting waterproof requirements for outdoor use. The flared waterproof sleeve allows downward-flowing water to flow past both sides, preventing water from entering the oven body. Simultaneously, the waterproof sleeve facilitates the insertion of the electric heating element's connector into the oven body. The detachable design of the electric heating element allows for easy cleaning of the inner lining. Attached Figure Description
[0020] Figure 1 This is a three-dimensional structural diagram of Example 1.
[0021] Figure 2 for Figure 1 Enlarged schematic diagram of section A (arrows indicate the direction of water flow).
[0022] Figure 3 This is a schematic diagram of the exploded structure of Example 1.
[0023] Figure 4 This is a cross-sectional structural diagram of Example 1.
[0024] Figure 5 This is a schematic diagram of the cross-sectional structure after the inner lining and waterproof sleeve are connected in Example 1.
[0025] Figure 6 for Figure 4 Schematic diagram of section B in the middle.
[0026] Figure 7 This is an exploded structural diagram of the electric coupler and electric heating device in Example 1. Detailed Implementation
[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0028] Example 1, see Figure 1-7 As shown, an electric oven with a waterproof structure includes an oven body 1 and an electric heating device 2.
[0029] The furnace body 1 includes an outer shell 3 and an inner lining 4. An inner cavity for housing the power supply device is formed between the outer shell 3 and the inner lining 4. The inner lining 4 has a heating chamber 40 for housing the electric heating device 2. A mounting hole 42 is provided on the inner side of the inner lining 4 near the bottom surface of the heating chamber 40, and the mounting hole communicates with the inner cavity of the furnace body 1. A power supply device, including an electrocoupler 5, is installed in the inner cavity of the furnace body 1. The electrocoupler 5 has a conductive insertion hole 51 facing the mounting hole.
[0030] Specifically, the inner edge of the top of the outer shell 3 has an upwardly extending protruding edge 31, and the outer edge of the inner lining 4 has a retaining edge 41. The outer edge of the inner lining 4 is placed on the top of the outer shell 3, and the retaining edge 41 is placed outside the protruding edge 31, with the bottom of the retaining edge 41 resting on the top surface of the outer shell 3. The retaining edge 41 is inclined outward from top to bottom, and the outer side of the protruding edge 31 is also inclined outward from top to bottom, meaning the bottom of the retaining edge 41 is lower than the top surface of the protruding edge 31. Water flows down from the inner lining 4 through the retaining edge 41, which guides the water away from the protruding edge 31. Even if water enters the gap between the retaining edge 41 and the outer shell 3, because the top surface of the protruding edge 31 is higher than the gap, and in conjunction with the inclined outer surface of the protruding edge 31, the water cannot rise over the protruding edge 31 and enter the inner cavity of the furnace body 1, thus ensuring the safety of the power supply device. Preferably, the cross-section of the protruding edge 31 is trapezoidal.
[0031] The outer shell 3 is provided with a fixing stud 32, which abuts against the bottom surface of the outer edge of the inner liner 4. The outer edge of the inner liner 4 is provided with a positioning hole 43 corresponding to the fixing stud 32, and the screw passes through the positioning hole 43 and is threadedly connected to the fixing stud 32.
[0032] A waterproof sleeve 6 is provided inside the mounting hole 42. The waterproof sleeve 6 is trumpet-shaped, with the inner edge 61 having a smaller diameter than the outer edge 62. The inner edge 61 of the waterproof sleeve 6 is inserted into the mounting hole 42, while the outer edge 62 of the waterproof sleeve 6 is placed outside the mounting hole 42.
[0033] The power connector of the electric heating device 2 is pin-shaped and passes through the waterproof sleeve 6 to make a plug-in conductive connection with the conductive socket 51 of the electrical coupler 5. The electric heating device 2 is detachable for easy cleaning of the heating chamber 40.
[0034] In this embodiment, the bottom of the liner 4 is provided with a drainage pipe 7. The drainage pipe 7 passes through the inner cavity of the furnace body 1 and extends from the bottom surface of the outer shell 3. The drainage pipe 7 connects to the heating chamber 40. Water enters the heating chamber 40 through the inner side of the liner 4 and the top opening, and finally flows out from the drainage pipe 7. The water flows downward through the inner side of the liner 4, and the waterproof sleeve 6 forces the water to flow only through the two sides of the waterproof sleeve 6, thereby preventing water from flowing into the inner cavity of the furnace body 1 through the mounting hole 42. Since the waterproof sleeve 6 is close to the bottom surface of the heating chamber 40, even if water is washed onto the side wall of the liner 4 due to the shaking of the furnace body 1, the outer edge 62 of the waterproof sleeve 6 can guide the water downward and prevent it from directly entering the mounting hole 42.
[0035] A fixing cover 8 is installed on the power connection terminal of the electric heating device 2. The fixing cover 8 supports the electric heating device. The fixing cover 8 is open on the side facing the waterproof sleeve 6 and the bottom surface, and the fixing cover 8 covers the waterproof sleeve 6. The fixing cover 8 prevents water from directly entering the inner cavity of the furnace body 1 from the flared opening of the waterproof sleeve 6.
[0036] The furnace body 1 has a high overall waterproof performance, ensuring the electrical safety of the power supply device and other electrical components inside the furnace body 1.
[0037] The terms used in this utility model, such as "first," "second," etc., do not indicate any order, quantity, or importance, but are only used for distinction.
[0038] In this invention, terms such as "a" or "an" are used to indicate not a limitation on the quantity, but rather to indicate the existence of at least one of the mentioned objects.
[0039] In this utility model, terms indicating direction or location such as front end, rear end, top, bottom, side, longitudinal, transverse, middle, center, outside, inside, horizontal, vertical, left, right, above, below, etc., are used to indicate relative positions rather than absolute positions.
[0040] Terms used in this invention, such as "approximately," "overall," "approximately," and "similar," are limiting terms used to indicate features that exist but allow for certain deviations. The amount of deviation allowed may vary depending on the specific context.
Claims
1. An electric oven with a waterproof structure, comprising an oven body, characterized in that, The furnace body includes an outer shell and an inner lining. The inner lining is installed on the outer shell. The outer edge of the inner lining is provided with a snap-on edge. The inner edge of the top of the outer shell is provided with an upward-facing convex edge. The outer edge of the inner lining is placed on the top of the outer shell. The snap-on edge is placed outside the convex edge. The bottom of the snap-on edge rests on the top surface of the outer shell.
2. The electric oven with a waterproof structure according to claim 1, characterized in that, The fastening edge is inclined outward from top to bottom, and the outer side of the convex edge is inclined outward from top to bottom.
3. The electric oven with a waterproof structure according to claim 1, characterized in that, The outer shell is equipped with a fixing stud, which abuts against the bottom surface of the outer edge of the inner liner. The outer edge of the inner liner is provided with a positioning hole corresponding to the fixing stud, and the screw passes through the positioning hole and is threadedly connected to the fixing stud.
4. The electric oven with a waterproof structure according to claim 1, characterized in that, The furnace body cavity, which houses the power supply device, is formed between the outer shell and the inner lining. The inner lining has a heating chamber for housing the electric heating device. The inner lining has mounting holes with waterproof sleeves inside the mounting holes. The power connection terminal of the electric heating device passes through the waterproof sleeves and is electrically connected to the power supply device inside the furnace body.
5. The electric oven with a waterproof structure according to claim 4, characterized in that, The waterproof sleeve is trumpet-shaped, with the inner diameter of the waterproof sleeve being smaller than the outer diameter. The inner edge of the waterproof sleeve is inserted into the mounting hole, while the outer edge of the waterproof sleeve is placed outside the mounting hole.
6. The electric oven with a waterproof structure according to claim 4, characterized in that, The power supply device includes an electric coupler. The power connection terminal of the electric heating device is pin-shaped. The power connection terminal of the electric heating device passes through a waterproof sleeve and is plugged into the conductive socket of the electric coupler for conductive connection.
7. The electric oven with a waterproof structure according to claim 4, characterized in that, A fixing cover is installed on the power connection terminal of the electric heating device. The fixing cover is open on the side facing the waterproof sleeve and the bottom surface, and the fixing cover covers the waterproof sleeve.