Electric furnace with good heat insulation effect

Abstract

An electric furnace with a good heat insulation effect comprises a furnace shell and a control box, a furnace cavity is formed in the furnace shell, a heating body is arranged in the furnace cavity, a circuit board is installed in the control box, the circuit board is electrically connected with the heating body, one end of the connecting piece is connected with the outer surface of the furnace shell, and the other end of the connecting piece is fixedly connected with the control box. An isolation space is formed between the fixed control box and the furnace shell; the electric control device of the electric furnace is arranged in the control box, the control box belongs to a space independent of the outside of the furnace cavity, the heating body in the furnace cavity does not influence the electric control device in the control box at all, meanwhile, the control box is fixedly connected with the furnace shell through the connecting piece, and a fixed isolation distance is formed between the control box and the furnace shell. The control box can be integrally considered in the appearance design stage of the furnace shell, and meanwhile, two independent spaces are formed functionally, so that an electric control device in the control box can work at a reasonable temperature for a long time.

Description

Technical Field

[0001] The utility model relates to an electric furnace, in particular to an electric furnace with good heat insulation effect. Background Art

[0002] After the applicant conducted extensive patent searches and learned about products currently on the market, it was discovered that existing electric furnaces have proposed various solutions to solve the heat dissipation or insulation problems of electronic control devices and to facilitate maintenance, replacement or upgrades.

[0003] For example, in the existing patent document retrieved: CN201620615858.3, an induction cooker with convenient replacement of circuit boards; by providing a main circuit board accommodating cavity on the outer shell and placing the main circuit board in the main circuit board accommodating cavity, maintenance, replacement, inspection and disposal of the circuit board are made more convenient.

[0004] For example, in the existing patent documents retrieved, CN201520041724.0, an induction cooker; by configuring the furnace body to consist of a main casing and a sub-casing located outside the main casing, the circuit control module is arranged in the sub-casing, and the electromagnetic wire reel is arranged in the main casing, thereby reducing the influence of the heating of the electromagnetic wire reel and the heating of the circuit control module on each other.

[0005] The utility model provides an electric furnace, which adopts a structure different from the above and attempts to solve the problem of heat insulation of the electric control device of the electric furnace and the problem of convenient maintenance, replacement or upgrading. Summary of the invention

[0006] The utility model aims to solve the above-mentioned existing problems and provide an electric furnace with good heat insulation effect, so that the electric control device of the electric furnace is arranged in a control box, and the control box belongs to a space independent of the outside of the furnace cavity. The heating element in the furnace cavity will not affect the electric control device in the control box at all. At the same time, the control box is fixedly connected to the furnace shell through a connecting piece and forms a fixed isolation distance with the furnace shell, so that the control box can be considered as a whole at the stage of furnace shell appearance design, and two independent spaces are formed functionally, so that the electric control device in the control box can work at a reasonable temperature for a long time.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] An electric furnace with good heat insulation effect comprises a furnace shell and a control box, wherein a furnace cavity is arranged in the furnace shell, a heating element is arranged in the furnace cavity, a circuit board is installed in the control box, and the circuit board is electrically connected to the heating element, wherein the electric furnace shell comprises a furnace cavity, a heating element is arranged in the furnace cavity, and a heating element is electrically connected to the heating element, wherein the electric furnace shell comprises a furnace cavity, a heating element is arranged in the furnace cavity, and a heating element is arranged in the control box, and the heating element is electrically connected to the heating element, wherein the electric furnace shell comprises a furnace cavity, a heating element is arranged in the ...

[0009] It also includes a connecting piece, one end of which is connected to the outer surface of the furnace shell, and the other end is connected and fixed to the control box, and an isolation distance is formed between the fixed control box and the furnace shell.

[0010] The furnace shell comprises a surface shell and a bottom shell, the surface shell comprises an outer side surface and an outer top surface of the surface shell, and a connecting piece is arranged on the outer side surface or the outer top surface of the surface shell.

[0011] A face shell side hole is provided on the outer side of the face shell, a first connecting column is provided on the control box, and two ends of the connecting piece are respectively matched with the face shell side hole and the first connecting column, and then connected and fixed by a fastening structure.

[0012] A top hole of the face shell is provided on the outer top surface, and a first connecting hole is provided on the control box. After the two ends of the connecting piece are respectively matched with the top hole of the face shell and the first connecting hole, they are connected and fixed by a fastening structure.

[0013] The furnace shell comprises a surface shell and a bottom shell, the bottom shell comprises an outer side surface and an outer bottom surface of the bottom shell, and a connecting piece is arranged on the outer side surface or the outer bottom surface of the bottom shell.

[0014] A bottom shell side hole is provided on the outer side of the bottom shell, a second connecting column is provided on the control box, and two ends of the connecting member are respectively matched with the bottom shell side hole and the second connecting column, and then connected and fixed by a fastening structure.

[0015] The outer bottom surface of the bottom shell is provided with a bottom shell bottom hole, the control box is provided with a second connecting hole, and the two ends of the connecting member are respectively matched with the bottom shell bottom hole and the second connecting hole, and are connected and fixed by a fastening structure.

[0016] The bottom shell is provided with a first threading hole, the control box is provided with a second threading hole, and the circuit board and the heating element are electrically connected through a wire.

[0017] The circuit board includes a power module and a control module, and the power module and the control module are respectively composed of two independent circuit boards

[0018] The circuit board includes a power module and a control module, and the power module and the control module are arranged on a circuit board.

[0019] The heating element is a stove plate of an electric ceramic stove, or a coil plate assembly of an induction cooker, or a heating plate or a graphene heating element.

[0020] The connecting piece is provided with a rotatable mechanism, and the control box can rotate relative to the furnace shell through the rotatable mechanism.

[0021] The rotatable mechanism includes a first connecting member and a second connecting member, a rotating shaft extends from the second connecting member, a rotating hole is provided on the first connecting member, the rotating shaft is installed and matched with the rotating hole, so that the control box connected to the second connecting member can rotate relative to the furnace shell.

[0022] The utility model is beneficial in that:

[0023] (1) The utility model discloses an electric furnace with good heat insulation effect. The electric control device is arranged in a control box. The control box is a space independent of the furnace cavity. The heating element in the furnace cavity will not affect the electric control device in the control box at all. The influence of the heating element on the electric control device is isolated, which effectively improves the service life of the electric control device and enables the electric control device in the control box to operate at a reasonable temperature for a long time.

[0024] (2) The utility model provides an electric furnace with good heat insulation effect. The control box is fixedly connected to the furnace shell by a connecting piece and forms a fixed isolation distance with the furnace shell. This allows the control box to be considered as a whole during the furnace shell appearance design stage. That is, the connecting piece is used as a part of the electric furnace appearance, and two independent spaces are formed functionally.

[0025] (3) The utility model discloses an electric stove with good heat insulation effect. The control box and the connecting parts are of a detachable structure, so that different stove shells and different control boxes can be freely matched. The advantage brought is that in addition to the appearance shape can be freely matched, the same stove shell can also be matched with different functions or control schemes to realize different cooking modes, achieving the effect of one machine with multiple uses.

[0026] (4) The utility model provides an electric furnace with good heat insulation effect. The furnace shell and the control box are fixedly connected by a connecting piece to ensure a reliable connection between the two and play a waterproof role at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the first embodiment of the utility model.

[0028] Figure 2 It is a schematic diagram of the exploded structure of the first embodiment of the utility model.

[0029] Figure 3 It is a schematic diagram of the exploded structure of the second embodiment of the present utility model.

[0030] Figure 4 It is a structural schematic diagram of the third embodiment of the present utility model.

[0031] Figure 5 It is a schematic diagram of the exploded structure of the third embodiment of the present utility model.

[0032] Figure 6 It is a structural schematic diagram of the fourth embodiment of the present utility model.

[0033] Figure 7 It is a structural schematic diagram of the fifth embodiment of the present utility model.

[0034] Figure 8 It is a schematic diagram of the exploded structure of the sixth embodiment of the present utility model.

[0035] Fig. 9 It is a schematic diagram of the exploded structure of the seventh embodiment of the present utility model.

[0036] Fig.10 It is a schematic diagram of the exploded structure of the seventh embodiment of the present utility model.

[0037] Fig.11 It is a schematic diagram of the exploded structure of the seventh embodiment of the present utility model.

[0038] Fig.12 It is a structural schematic diagram of one implementation mode of the circuit board in the utility model.

[0039] Fig.13 It is a structural schematic diagram of another implementation mode of the circuit board in the utility model.

[0040] Fig.14 It is a schematic diagram of the exploded structure of the eighth embodiment of the present utility model. DETAILED DESCRIPTION

[0041] The utility model is described in detail below with reference to the accompanying drawings and embodiments.

[0042] First embodiment:

[0043] like Figure 1-Figure 2 As shown, an electric furnace with good heat insulation effect includes a furnace shell 1 and a control box 2. A furnace cavity 101 is provided in the furnace shell 1, a heating element 3 is provided in the furnace cavity 101, a circuit board 4 is installed in the control box 2, and the circuit board 4 is electrically connected to the heating element 3;

[0044] It also includes a connecting member 5, one end of which is connected to the outer surface of the furnace shell 1, and the other end is connected and fixed to the control box 2, and an isolation distance L is formed between the fixed control box 2 and the furnace shell 1.

[0045] The control box 2 is fixedly connected to the furnace shell 1 through a connector and forms a fixed isolation distance L with the furnace shell. The heating element in the furnace cavity 101 will not affect the electronic control device (including the circuit board 4) in the control box 2 at all, and the influence of the heating element 3 on the electronic control device is isolated, which effectively improves the service life of the electronic control device and enables the electronic control device in the control box 2 to operate at a reasonable temperature for a long time.

[0046] The furnace shell 1 includes a surface shell 102 and a bottom shell 103. The surface shell 102 includes an outer surface 102-1 and an outer top surface 102-2. The outer surface 102-1 or the outer top surface 102-2 of the surface shell is provided with a connecting piece 5.

[0047] The outer side surface 102-1 of the housing is provided with a housing side hole 102-1A, and the control box 2 is provided with a first connecting column 201. The two ends of the connecting member 5 are respectively matched with the housing side hole 102-1A and the first connecting column 201, and are connected and fixed by a fastening structure (not shown in the figure).

[0048] The connector 5 is a hollow structure and is not electrically charged. It is a common accessory. The hollow structure can simultaneously satisfy the requirements of the wire passing through and the connection of the fastening structure. The wire connects the circuit board 4 and the heating element 3. One end of the connector 5 is provided with a cavity 501 that cooperates with the first connecting column 201.

[0049] The fastening structure may be a screw, which passes through the side hole 102-1A of the surface shell and the connecting piece 5, and is connected and fixed to the first connecting column 201, so that the furnace shell 1, the connecting piece 5 and the control box 2 are connected as a whole.

[0050] In addition to screws, fasteners can also be conventional connection methods such as snap connections or adhesives.

[0051] The furnace shell 1 is provided with a first threading hole 103 - 3 , specifically: the bottom shell 103 is provided with a first threading hole 103 - 3 , the control box 2 is provided with a second threading hole 205 , and the circuit board 4 and the heating element 3 are electrically connected by passing the wire 6 through the first threading hole 103 - 3 and the second threading hole 205 .

[0052] The first threading hole 103 - 3 may also be provided on the surface shell 102 , or may be provided on both the surface shell 102 and the bottom shell 103 .

[0053] In addition, in addition to wire connection, electrical contact can also be achieved through other conductive structures, such as couplers, optoelectronic transmission structures, etc.

[0054] Second embodiment:

[0055] like Figure 3 As shown, in addition to the structure of the connecting column in the first embodiment, a connecting hole structure can also be adopted, that is, a third connecting hole 206 is opened on the control box 2; similarly, after the fastener passes through the side hole 102-1A of the face shell and the connecting member 5, it is connected and fixed with the third connecting hole 206, as shown in FIG. Figure 3 shown.

[0056] In addition, wire 6 Figure 1 The wiring method is to make the connection channel not only allow the fastener to connect, but also reserve a space suitable for the wire 6 to pass through, and can also pass through the third connection hole 206, the connector 5 and the side hole 102-1A of the face shell, so that both ends of the wire 6 can be connected to the circuit board 4 and the heating element 3. Figure 3 shown.

[0057] Third embodiment:

[0058] like Figure 4-Figure 5 As shown, the outer top surface 102-2 of the face shell 102 is provided with a face shell top hole 102-2A, and the control box 2 is provided with a first connecting hole 202. The two ends of the connecting member 5 are respectively matched with the face shell top hole 102-2A and the first connecting hole 202, and are connected and fixed by a fastening structure.

[0059] The connecting piece is a common accessory and is not electrically charged. The fastener structure may be a screw. One end of the connecting piece is connected and fixed to the top hole 102-2A of the face shell by a screw, and the other end of the connecting piece is connected and fixed to the first connecting hole 202 by a screw.

[0060] In addition to screws, fasteners can also be conventional connection methods such as snap connections or adhesives.

[0061] Specifically, a groove 102-2B is further provided on the outer top surface 102-2 of the face shell 102, and one end of the connecting member 5 is embedded in the groove 102-2B and fixed to the top hole 102-2A of the face shell by screws.

[0062] Fourth embodiment:

[0063] like Figure 6 As shown, its structure is similar to that of the first embodiment, except that: the furnace shell 1 includes a surface shell 102 and a bottom shell 103, the bottom shell 103 includes an outer side surface 103-1 and an outer bottom surface 103-2 of the bottom shell, and a connecting piece 5 is provided on the outer side surface 103-1 or the outer bottom surface 103-2 of the bottom shell.

[0064] The outer side surface 103-1 of the bottom shell is provided with a bottom shell side hole 103-1A, and the control box 2 is provided with a second connecting column 203. The two ends of the connecting member 5 are respectively matched with the bottom shell side hole 103-1A and the second connecting column 203, and are connected and fixed by a fastening structure.

[0065] The structure and principle of this embodiment are basically the same as those of the first embodiment, except for the connection positions, which will not be described in detail here.

[0066] Fifth embodiment:

[0067] like Figure 7 As shown, its structure is similar to that of the second embodiment, except that: a bottom hole 103-2A is provided on the outer bottom surface 103-2 of the bottom shell 103, a second connecting hole 204 is provided on the control box 2, and the two ends of the connecting member 5 are respectively matched with the bottom hole 103-2A and the second connecting hole 204 of the bottom shell, and are connected and fixed by a fastening structure.

[0068] The structure and principle of this embodiment are basically the same as those of the second embodiment, except for the connection positions, which will not be described in detail here.

[0069] Sixth embodiment:

[0070] like Figure 8 As shown, different from the first embodiment, the connecting member 5 has at least two hollow channels. Then, referring to the second embodiment, the surface shell 102 on the furnace shell 1 is provided with a surface shell side hole 102-1A, and the control box 2 is provided with a third connecting hole 206. One of the channels C is used for connection and fixing, that is, after the screw passes through the surface shell side hole 102-1A and the channel C, it is connected and fixed with the third connecting hole 206, so that the furnace shell 1, the connecting member 5 and the control box 2 are connected as a whole; the other channel D is used for the passage of the wire 6. The surface shell 102 is provided with a third threading hole 102-3, and the control box 2 is provided with a fourth threading hole 207. The two ends of the wire 6 pass through the third threading hole 102-3 and the fourth threading hole 207 respectively to connect the circuit board 4 and the heating element 3.

[0071] In addition, in this embodiment, a waterproof pad 7 is provided between the side hole 102-1A of the face shell and the third threading hole 102-3 and the connecting member 5, and a waterproof pad 8 is provided between the third connecting hole 206 and the fourth threading hole 207 and the connecting member 5, so as to achieve a waterproof and sealing effect.

[0072] Seventh embodiment:

[0073] like Fig. 9 As shown, in the above-mentioned first to seventh embodiments, the connecting member is an independent component. In this embodiment, the connecting member 5 is composed of two parts. Specifically, a third connecting column 102-4 extends from the surface shell 102, and a fourth connecting column 208 extends from the control box 2. The fourth connecting column 208 and the third connecting column 102-4 are mutually socketed and tightened by screws to complete the fixed connection between the control box 2 and the furnace shell 1. The disassembly and assembly of the two can be realized in the same way.

[0074] Regarding this embodiment, it can also be improved that a third connecting column 102-4 extends from the face shell 102, a through hole 209 is opened on the control box 2, and the third connecting column 102-4 and the through hole 209 are locked by screws, such as Fig.10 As shown;

[0075] Alternatively, a fourth connecting column 208 extends from the control box 2, a through hole 210 is provided on the housing 102, and the fourth connecting column 208 and the through hole 210 are fastened by screws, such as Fig.11 shown.

[0076] The third connection column 102 - 4 or the through hole 210 may also be disposed on the bottom shell 103 , which will not be described in detail herein.

[0077] Eighth embodiment:

[0078] like Fig.14As shown, in the above-mentioned first to seventh embodiments, the control box 2 is of fixed type. In this embodiment, through structural improvement, the control box 2 can be rotated to a certain angle relative to the furnace shell 1, which is more convenient for consumers to use. Specifically, a rotatable mechanism is provided on the connecting member 5, and the control box 2 can be rotated relative to the furnace shell 1 through the rotatable mechanism.

[0079] The rotatable mechanism includes a first connecting member 9 and a second connecting member 10, a rotating shaft 1001 extends from the second connecting member 10, a rotating hole 901 is provided on the first connecting member 9, and the rotating shaft 1001 is installed and matched with the rotating hole 901, so that the control box 2 connected to the second connecting member 10 can rotate relative to the furnace shell 1.

[0080] Regarding the rotatable mechanism, in addition to the above-mentioned structural combination, it can also be a universal joint structure, and both ends of the universal joint structure are connected to the furnace shell and the control box, so that the control box can rotate or swing relative to the furnace shell.

[0081] The rotatable mechanism may also be other structures that can realize rotation or swing or adjustable angle.

[0082] Based on the above eight embodiments or other similar implementation schemes, the circuit board 4 and the heating element 3 can be implemented in the following different ways:

[0083] like Fig.12 As shown, the circuit board 4 includes a power module 401 and a control module 402, and the power module 401 and the control module 402 are respectively composed of two independent circuit boards.

[0084] Or, if Fig.13 As shown, the circuit board 4 includes a power module 401 and a control module 402, and the power module 401 and the control module 402 are arranged on one board.

[0085] The heating element 3 is a stove plate of an electric ceramic stove, or a coil plate assembly of an induction cooker, or a heating plate or a graphene heating element.

[0086] The heating element 3 is located below the surface shell 102 .

[0087] The above is a preferred embodiment of the utility model, which shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. The utility model may have various changes and improvements without departing from the protection scope of the utility model, and these changes and improvements fall within the scope of the utility model to be protected, and the protection scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. An electric furnace with good heat insulation effect, comprising a furnace shell (1) and a control box (2), wherein a furnace cavity (101) is provided in the furnace shell (1), a heating element (3) is provided in the furnace cavity (101), a circuit board (4) is installed in the control box (2), and the circuit board (4) is electrically connected to the heating element (3), wherein: It also comprises a connecting piece (5), one end of the connecting piece (5) is connected to the outer surface of the furnace shell (1), and the other end is connected and fixed to the control box (2), and an isolation distance (L) is formed between the fixed control box (2) and the furnace shell (1).

2. According to claim 1, an electric furnace with good heat insulation effect is characterized in that: The furnace shell (1) comprises a surface shell (102) and a bottom shell (103); the surface shell (102) comprises an outer surface (102-1) and an outer top (102-2) of the surface shell; and a connecting piece (5) is provided on the outer surface (102-1) or the outer top (102-2) of the surface shell.

3. An electric furnace with good heat insulation effect according to claim 2, characterized in that: The outer side surface (102-1) of the face shell is provided with a face shell side hole (102-1A), the control box (2) is provided with a first connecting column (201), and the two ends of the connecting member (5) are respectively matched with the face shell side hole (102-1A) and the first connecting column (201), and then connected and fixed by a fastening structure.

4. The electric furnace with good heat insulation effect according to claim 2, characterized in that: The outer top surface (102-2) of the face shell (102) is provided with a face shell top hole (102-2A), the control box (2) is provided with a first connection hole (202), and the two ends of the connection member (5) are respectively matched with the face shell top hole (102-2A) and the first connection hole (202), and then connected and fixed by a fastening structure.

5. The electric furnace with good heat insulation effect according to claim 1, characterized in that: The furnace shell (1) comprises a surface shell (102) and a bottom shell (103); the bottom shell (103) comprises a bottom shell outer side surface (103-1) and an outer bottom surface (103-2); a connecting piece (5) is provided on the bottom shell outer side surface (103-1) or the outer bottom surface (103-2).

6. The electric furnace with good heat insulation effect according to claim 5, characterized in that: A bottom shell side hole (103-1A) is provided on the outer side surface (103-1) of the bottom shell, a second connecting column (203) is provided on the control box (2), and two ends of the connecting member (5) are respectively matched with the bottom shell side hole (103-1A) and the second connecting column (203) and are connected and fixed by a fastening structure.

7. The electric furnace with good heat insulation effect according to claim 5, characterized in that: The outer bottom surface (103-2) of the bottom shell (103) is provided with a bottom shell bottom hole (103-2A), the control box (2) is provided with a second connection hole (204), and the two ends of the connection member (5) are respectively matched with the bottom shell bottom hole (103-2A) and the second connection hole (204) and are connected and fixed by a fastening structure.

8. The electric furnace with good heat insulation effect according to claim 2, characterized in that: The bottom shell (103) is provided with a first threading hole (103-3), the control box (2) is provided with a second threading hole (205), and the circuit board (4) and the heating element (3) are electrically connected via a wire (6) passing through the first threading hole (103-3) and the second threading hole (205).

9. The electric furnace with good heat insulation effect according to claim 1, characterized in that: A rotatable mechanism is provided on the connecting member (5), and the control box (2) can rotate relative to the furnace shell (1) via the rotatable mechanism.

10. An electric furnace with good heat insulation effect according to claim 9, characterized in that: The rotatable mechanism comprises a first connecting member (9) and a second connecting member (10); a rotating shaft (1001) extends from the second connecting member (10); a rotating hole (901) is provided on the first connecting member (9); the rotating shaft (1001) is mounted and matched with the rotating hole (901), so that the control box (2) connected to the second connecting member (10) can rotate relative to the furnace shell (1).

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