Electric oven with detachable electric heating unit

Abstract

The utility model discloses an electric oven with a detachable electric heating unit, which comprises an oven body and the electric heating unit arranged in a heating cavity of the oven body, an electric coupler is arranged in the oven body, the oven body is provided with a mounting hole, a power connection end of the electric heating unit penetrates through the mounting hole and is inserted into the electric coupler, and the power connection end and the electric coupler are coupled and conducted. A fastening device is arranged in the heating cavity, and the electric heating unit and the furnace body are detachably connected and fixed through the fastening device. The electric heating unit is in plug-in coupling connection with the electric coupler in the furnace body, so that the electric heating unit can be conveniently taken out to clean the heating cavity, dead angles are not easy to leave in the heating cavity, the electric heating unit is not electrified after being separated from the electric coupler, and the electric heating unit is easy and safe to clean; the electric heating unit and the furnace body are connected and fixed through the fastening device, the electric heating unit is prevented from being accidentally separated from the electric coupler, and use is stable and safe.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric oven technical field, concretely relates to a kind of electric oven with detachable electric heating unit. BACKGROUND

[0002] The electric heating unit of existing electric oven is arranged on the bottom surface of heating cavity, and the electric heating unit heats food on grill upward. Since the electric heating unit of electric oven is usually fixed on oven body and cannot be detached. Oil and the like generated when cooking food will drip in heating cavity and on the electric heating unit. When cleaning, it is difficult to clean heating cavity due to the obstruction of electric heating unit, and dead angles cannot be cleaned, and oil on the electric heating unit is also difficult to clean. SUMMARY

[0003] The utility model aims at providing an improved electric oven with detachable electric heating unit and convenient cleaning.

[0004] The utility model is realized as follows.

[0005] An electric oven with detachable electric heating unit comprises an oven body and an electric heating unit arranged in the heating cavity of the oven body. The oven body is provided with an electric coupler. The oven body is provided with a mounting hole. The power connection end of the electric heating unit is inserted into the electric coupler through the mounting hole. The power connection end and the electric coupler are coupled to conduct electricity. The heating cavity is provided with a fastening device. The electric heating unit and the oven body are detachably connected and fixed by the fastening device. After the fastening device is detached, the power connection end of the electric heating unit is directly pulled out, and the electric heating unit is separated from the oven body.

[0006] The electric heating unit and the electric coupler in the oven body are plug-in coupled and connected, the electric heating unit is convenient to take out to clean the heating cavity, the heating cavity is not easy to have dead angles, the electric heating unit is not electrified after being separated from the electric coupler, the electric heating unit is easy and safe to clean, the electric heating unit is connected and fixed with the oven body by the fastening device after installation, so that the electric heating unit is prevented from being accidentally separated from the electric coupler, and the electric oven is stable and safe in use. Only the fastening device needs to be detached to directly pull out the electric heating unit, without the need to remove other components, so that the operation is simple and convenient.

[0007] Further, the oven body comprises an outer shell and an inner liner. The inner liner is mounted on the outer shell. The inner liner is concave to form the heating cavity. The electric coupler is mounted in the inner cavity of the oven body formed between the outer shell and the inner liner. The electric heating unit comprises a fixing frame and at least two groups of heating pipes. The fixing frame is provided with a positioning hole. The end of the heating pipe is the power connection end. The heating pipe is arranged in the positioning hole near the power connection end. The mounting hole is arranged on the inner liner. The fastening device comprises a first connecting hole arranged on the fixing frame, a second connecting hole arranged on the inner liner and a first fastening screw. The first fastening screw passes through the first connecting hole and the second connecting hole to detachably connect and fix the inner liner and the fixing frame.

[0008] The electric heating unit adopts multiple groups of heating bodies, the current of the whole electric heating unit is shunted, the coupling contact point current is reduced, and abnormal heating damage to the electric coupling caused by excessive current at a single point is avoided. The user controls the installation and disassembly of the electric heating unit by tightening or loosening the first fastening screw.

[0009] Further, the fastening device further comprises a fixing sheet and a second fastening screw, the fixing sheet is provided with a third connecting hole, the inner liner is provided with a fourth connecting hole, the fixing sheet is bent with a clamping portion in inverted U shape, the clamping portion clamps the heating pipe, the first fastening screw passes through the third connecting hole and the fourth connecting hole to detachably connect and fix the fixing sheet and the inner liner, and the clamping portion leaves a gap between the heating pipe and the inner liner in the height direction.

[0010] The user controls the installation and disassembly of the electric heating unit by tightening or loosening the second fastening screw. The electric heating unit is fixed by double fixing and is not easy to displace in use.

[0011] Further, the electric coupling is provided with a conductive socket towards the mounting hole, the power connection end of the electric heating unit is in the shape of a pin, the power connection end of the electric heating unit is inserted into the conductive socket through the mounting hole, and the conductive socket and the power connection end of the electric heating unit are connected in conduction.

[0012] The electric coupling and the electric heating unit have simple connection structure and are easy and convenient to operate.

[0013] Further, a guide sleeve is arranged in the mounting hole, the guide sleeve is in the shape of a bell mouth, and the power connection end of the electric heating unit is inserted into the conductive socket through the guide sleeve.

[0014] The guide sleeve facilitates the user to insert the power connection end of the electric heating unit into the conductive socket.

[0015] Further, the inner edge of the guide sleeve has a smaller diameter than the outer edge, the inner edge of the guide sleeve is inserted into the mounting hole, the outer edge of the guide sleeve is arranged outside the mounting hole, the diameter of the outer edge of the guide sleeve is greater than the diameter of the positioning hole, the fixed frame is open towards the side and the bottom surface of the guide sleeve, and the fixed frame covers the guide sleeve.

[0016] The guide sleeve prevents water flowing downward from entering the furnace body through the mounting hole, the electric oven meets the waterproof use requirement and can be used outdoors. The fixed frame prevents water from entering the furnace body through the opening of the guide sleeve, thereby improving the waterproof effect.

[0017] The electric heating unit and the electric coupler in the furnace body are coupled and connected in a plug-in mode, the electric heating unit is convenient to take out for cleaning the heating cavity, the heating cavity is not prone to having dead angles, the electric heating unit is not electrified after being separated from the electric coupler, the electric heating unit is easy to clean and safe, after the electric heating unit is installed, the fastening device connects and fixes the electric heating unit and the furnace body, the electric heating unit is prevented from being separated from the electric coupler accidentally, and use is stable and safe. The user twists or untwists the first fastening screw and the second fastening screw, and then directly controls installation and disassembly of the electric heating unit, the electric heating unit is fixed doubly, and is not prone to displacement in use. The electric coupler and the electric heating unit are connected in a simple structure, and plug-in operation is easy and convenient. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the embodiment one.

[0019] Figure 2 It is an exploded structural schematic diagram of the embodiment one.

[0020] Figure 3 It is a sectional structural schematic diagram of the embodiment one.

[0021] Figure 4 It is Figure 3 It is an enlarged schematic diagram of the A part.

[0022] Figure 5 It is an installation structural schematic diagram of the electric coupler and the electric heating unit in the embodiment one.

[0023] Figure 6 It is a local structural schematic diagram of the electric coupler and the electric heating unit after installation in the embodiment one. DETAILED DESCRIPTION

[0024] The utility model will be further described in connection with the drawings and embodiments.

[0025] Embodiment one, referring to Figures 1-6 As shown in the figure, an electric oven with a detachable electric heating unit comprises a furnace body 1 and an electric heating unit 2 and a fastening device 8 arranged in a heating cavity 10 of the furnace body 1. The furnace body comprises an outer shell 11 and an inner lining 12, the inner lining 12 is arranged on the outer shell 11, the inner lining 12 is concave to form the heating cavity 10, and an electric coupler 3 is fixedly arranged in a furnace body inner cavity formed between the outer shell 11 and the inner lining 12. The electric heating unit 2 and the furnace body 1 are detachably connected and fixed through the fastening device 8.

[0026] The furnace body 1 is provided with a mounting hole 13, and the electric coupler 3 is provided with a conductive jack facing the mounting hole 13. A guide sleeve 4 is arranged in the mounting hole 13, the guide sleeve 4 is in the shape of a bell mouth, that is, the outer edge 41 of the guide sleeve 4 has a larger diameter than the inner edge 42, the inner edge 42 of the guide sleeve 4 is inserted into the mounting hole 13, and the outer edge 41 of the guide sleeve 4 is arranged outside the mounting hole 13. Preferably, the guide sleeve 4 is welded and fixed in the mounting hole 13.

[0027] The electric coupler 3 comprises an insulating box 5 and a live wire coupling connector 31, a zero wire coupling connector 32 and a spring ring 33 arranged in the insulating box 5. The insulating box 5 comprises a front seat 51 and a rear cover 52, the front seat 51 is provided with fixing holes 53, the live wire coupling connector 31 and the zero wire coupling connector 32 and corresponding elastic clamps are inserted into the corresponding fixing holes 53, and the fixing holes 53 are aligned with the mounting holes 13 in front of the front seat 51. After the front seat 51 and the rear cover 52 are connected, the front seat 51 limits the live wire coupling connector 31 and the zero wire coupling connector 32 in the fixing holes 53.

[0028] The live wire coupling connector 31 is used for connecting the live wire, the zero wire coupling connector 32 is used for connecting the zero wire, the live wire coupling connector 31 and the zero wire coupling connector 32 are the same structure, and the live wire coupling connector 31 and the zero wire coupling connector 32 each comprise a fixing sleeve 6, the fixing sleeve 6 extends three elastic clamps 61 in front, the elastic clamps 61 are arranged in a ring shape around the axis of the fixing sleeve 6, and the elastic clamps 61 form the conductive jack. The spring ring 33 tightly clamps the outer ends of all the elastic clamps 61.

[0029] In the embodiment, the two groups of live wire coupling connectors 31 and zero wire coupling connectors 32 are respectively connected in parallel, and the live wire coupling connectors 31 and the zero wire coupling connectors 32 are installed in the insulating box 5 in a staggered manner, and the live wire coupling connectors 31 and the zero wire coupling connectors 32 are provided with an electrical gap meeting the safety distance. The roots of the parallel live wire coupling connectors 31 are connected with first wires 34 extending out of the insulating box 5, and the roots of the parallel zero wire coupling connectors 32 are connected with second wires 35 extending out of the insulating box 5.

[0030] The electric heating unit 2 comprises two groups of heating pipes 21, and the ends of the heating pipes 21 are guide columns 22, which constitute the power connection end of the electric heating unit 2, i.e. the power connection end of the electric heating unit 2 is in the shape of a pin.

[0031] The power connection end of the electric heating unit 2 is inserted into the corresponding conductive jack through the guide sleeve 4 on the mounting hole 13, the spring ring 33 makes the power connection end of the electric heating unit 2 and the elastic clamps 61 tightly contact, and the conductive jack and the power connection end of the electric heating unit 2 are connected in a conductive manner. The electric coupler 3 supplies power to the electric heating unit 2.

[0032] A fixing frame 7 is arranged on the power connection end of the electric heating unit 2, the fixing frame 7 is provided with a positioning hole 71, and the guide column 22 of the electric heating unit 2 is arranged in the positioning hole 71. The outer edge 41 of the guide sleeve 4 is larger in diameter than the diameter of the positioning hole 71, the side of the fixing frame 7 facing the guide sleeve 4 and the bottom surface are open, and the fixing frame 7 covers the guide sleeve 4. The cooperation of the fixing frame 7 and the guide sleeve 4 improves the waterproof performance of the mounting hole 13.

[0033] The fixed frame 7 supports the electric heating unit 2, and the fixed frame 7 is open towards the side of the guide sleeve and the bottom surface, and the fixed frame 7 covers the guide sleeve 4. The fixed frame 7 and the guide sleeve 4 cooperate to prevent water from directly entering the inner cavity of the furnace body 1 from the horn opening of the guide sleeve 4. The fixed frame 7 supports the electric heating unit 2 to be suspended in the heating cavity 10.

[0034] The fastening device 8 comprises a first connecting hole 81 arranged on the fixed frame 7, a second connecting hole 82 arranged on the inner liner 12, a first fastening screw 83, the fixed sheet 9 and a second fastening screw 84. The first fastening screw 83 passes through the first connecting hole 81 and the second connecting hole 82, and detachably connects and fixes the inner liner 12 and the fixed frame 7. The fixed sheet 9 is provided with a third connecting hole 91, and the bottom of the inner liner 12 is provided with a fourth connecting hole 85. The fixed sheet 9 is bent with a clamping portion 92 in an inverted U shape, the clamping portion 92 clamps the heating tube 21, the first fastening screw 83 passes through the third connecting hole 91 and the fourth connecting hole 85, and detachably connects and fixes the fixed sheet 9 and the inner liner 12, and the clamping portion 92 leaves a gap between the heating tube 21 and the inner liner 12 in the height direction. Among them, the second connecting hole 82 and the first fastening screw 83 are threadedly connected, and the second fastening screw 84 and the fourth connecting hole 85 are threadedly connected. Alternatively, the second connecting hole 82 and the fourth connecting hole 85 are provided with nuts, and the first fastening screw 83 and the second fastening screw 84 are threadedly connected with the corresponding nuts. The first fastening screw 83 realizes the axial fastening of the electric heating unit 2, and the second fastening screw 84 realizes the radial fastening of the electric heating unit 2.

[0035] The user only needs to unscrew the first fastening screw 83 and the second fastening screw 84, and the electric heating unit 2 can be freely plugged and connected relative to the electric coupler 3, that is, the electric heating unit 2 is pulled out and separated from the furnace body, and the operation is simple.

[0036] As used in the present application, the terms: first, second, etc. do not indicate any order, quantity or importance, but are only used for differentiation.

[0037] As used in the present application, the terms: one, a, etc. do not indicate a limitation in quantity, but indicate the existence of at least one mentioned object.

[0038] As used in the present application, the terms indicating direction or position: front end, rear end, top, bottom, side, longitudinal, transverse, middle, center, outer, inner, horizontal, vertical, left, right, upward, downward, etc. mean reflecting relative position, not absolute position.

[0039] As used in the present application, the terms: substantially, overall, approximately, similar, etc. are used to indicate a limiting term that there is a feature but allows a certain deviation. The amount allowed to deviate can vary depending on the specific context.

Claims

1. An electric oven having a detachable electric heating unit, comprising an oven body and an electric heating unit provided in a heating cavity of the oven body, characterized in that, The furnace body is provided with an electric coupler, and the furnace body is provided with a mounting hole, and the power connection end of the electric heating unit is inserted into the electric coupler through the mounting hole, and the power connection end and the electric coupler are coupled to conduct electricity, and the heating cavity is provided with a fastening device, and the electric heating unit and the furnace body are detachably connected and fixed by the fastening device, After the fastening device is disassembled, the electric heating unit power connection end is directly pulled out, and the electric heating unit is separated from the furnace body.

2. The electric oven having a detachable electric heating unit according to claim 1, wherein The furnace body comprises an outer shell and an inner liner, the inner liner is mounted on the outer shell, the inner liner is concave to form the heating cavity, the electric coupler is mounted in the furnace body inner cavity formed between the outer shell and the inner liner, the electric heating unit comprises a fixing frame and at least two groups of heating pipes, the fixing frame is provided with a positioning hole, the end of the heating pipe is the power connection end, the heating pipe is inserted into the positioning hole near the power connection end, the inner liner is provided with the mounting hole, and the fastening device comprises a first connecting hole arranged on the fixing frame, a second connecting hole arranged on the inner liner and a first fastening screw, the first fastening screw passes through the first connecting hole and the second connecting hole to detachably connect and fix the inner liner and the fixing frame.

3. The electric oven having a detachable electric heating unit according to claim 2, wherein The fastening device further comprises a fixing sheet and a second fastening screw, the fixing sheet is provided with a third connecting hole, the inner liner is provided with a fourth connecting hole, the fixing sheet is bent with a clamping portion in inverted U shape, the clamping portion clamps the heating pipe, the first fastening screw passes through the third connecting hole and the fourth connecting hole to detachably connect and fix the fixing sheet and the inner liner, and the clamping portion leaves a gap between the heating pipe and the inner liner in the height direction.

4. The electric oven having a detachable electric heating unit according to claim 2, wherein The electric coupler is provided with a conductive jack towards the mounting hole, the power connection end of the electric heating unit is in the shape of a pin, the power connection end of the electric heating unit is inserted into the conductive jack through the mounting hole, and the conductive jack and the power connection end of the electric heating unit are connected to conduct electricity.

5. The electric oven having a detachable electric heating unit according to claim 4, wherein The mounting hole is provided with a guide sleeve, the guide sleeve is in the shape of a bell mouth, and the power connection end of the electric heating unit is inserted into the conductive jack through the guide sleeve.

6. The electric oven having a detachable electric heating unit according to claim 5, wherein The inner edge diameter of the guide sleeve is smaller than the outer edge diameter, the inner edge of the guide sleeve is inserted into the mounting hole, the outer edge of the guide sleeve is placed outside the mounting hole, the outer edge diameter of the guide sleeve is greater than the diameter of the positioning hole, the fixing frame is open towards the side and the bottom surface of the guide sleeve, and the fixing frame covers the guide sleeve.

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