Improved electric furnace

Abstract

An improved electric furnace comprises a furnace shell and a control box which are connected with each other, 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, an installation concave cavity is formed in the furnace shell, an opening which is open outwards is formed in the installation concave cavity, and the control box is installed in the installation concave cavity along the opening; due to the fact that the installation cavity is formed in the furnace shell in an inwards-concave mode, the control box and the furnace shell form an integrated model. The control box serves as an independent module to be detachable and convenient to maintain and upgrade, the heating body in the furnace cavity does not affect the electric control device in the control box at all, the influence of heating of the heating body on the electric control device is isolated, and the service life of the electric control device is effectively prolonged.

Description

Technical Field

[0001] The utility model relates to an electric furnace, in particular to an improved electric furnace. 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 purpose of the utility model is to solve the above-mentioned existing problems and provide an improved electric furnace, in which a mounting cavity for placing a control box is arranged on the furnace shell. Since the mounting cavity is arranged in the furnace shell in a concave form, the control box can form an integrated shape with the furnace shell; in addition, the control box can be detachable as an independent module, which is convenient for maintenance and upgrading, so that the electric control device in the control box can operate at a reasonable temperature for a long time. On the other hand, the mounting cavity is a part of the furnace shell, and the appearance consistency of the furnace shell can be retained after the control box is installed.

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

[0008] An improved electric furnace comprises a furnace shell and a control box connected to each other, 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:

[0009] The furnace shell is provided with an installation cavity, the installation cavity is provided with an opening open to the outside, and the control box is installed in the installation cavity along the opening.

[0010] The furnace shell comprises a surface shell and a bottom shell.

[0011] The mounting cavity is arranged on the face shell.

[0012] The mounting cavity is arranged on the bottom shell.

[0013] A portion of the mounting cavity is arranged on the surface shell, and another portion is arranged on the bottom shell.

[0014] The control box is provided with a back plate with a first wire passing hole, a partition is provided on the inner side of the installation cavity to separate the furnace cavity and the installation cavity, a second wire passing hole is provided on the partition, and the circuit board and the heating element are electrically connected by wires passing through the first wire passing hole and the second wire passing hole.

[0015] A first connecting hole is provided on the partition, a second connecting hole corresponding to the first connecting hole is provided on the back plate, a second connecting column corresponding to the second connecting hole extends in the control box, and the first connecting hole, the second connecting hole and the second connecting column are connected by fasteners to fix the control box in the installation cavity.

[0016] 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.

[0017] 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.

[0018] 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.

[0019] A heat insulation distance is formed between the installation cavity and the control box.

[0020] The utility model is beneficial in that:

[0021] (1) The utility model discloses an improved electric furnace, in which a mounting cavity for placing a control box is arranged on the furnace shell, and the mounting cavity is recessed inward from the outer surface of the furnace shell, so that the mounting cavity and the furnace cavity are two relatively independent, complementary and interfering cavities, and the opening of the mounting cavity faces outward; the control box can be detached and assembled as an independent module, which is convenient for maintenance and upgrading; the heating element in the furnace cavity will not affect the electronic control device in the control box at all, and the influence of the heat of the heating element on the electronic control device is isolated, thereby effectively improving the service life of the electronic control device and enabling the electronic control device in the control box to operate at a reasonable temperature for a long time.

[0022] (2) The utility model is an improved electric furnace. Since the installation cavity is arranged in a concave form in the furnace shell, the control box can form an integrated shape with the furnace shell. The installation cavity is used as a part of the furnace shell. After the control box is installed, the appearance consistency of the furnace shell can be retained.

[0023] (3) The utility model is an improved electric stove. Since the control box is detachable, the same stove shell can be used in conjunction with different control boxes, and different functions or control schemes can be combined to realize different cooking modes, thereby achieving a one-machine-multiple-purposes effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural exploded view of the first embodiment of the utility model.

[0025] Figure 2 It is a structural exploded view of the first embodiment of the utility model.

[0026] Figure 3 It is a structural exploded view of the first embodiment of the utility model.

[0027] Figure 4 It is a structural sectional view of the first embodiment of the utility model.

[0028] Figure 5 It is a structural schematic diagram of one implementation mode of the circuit board in the utility model.

[0029] Figure 6 It is a structural schematic diagram of another implementation mode of the circuit board in the utility model.

[0030] Figure 7 It is a structural exploded view of the second embodiment of the utility model.

[0031] Figure 8 It is a structural exploded view of the third embodiment of the present utility model.

[0032] Fig. 9 It is a structural sectional view of the fourth embodiment of the present utility model.

[0033] Fig.10 It is a structural exploded view of the fourth embodiment of the present utility model. DETAILED DESCRIPTION

[0034] The utility model is described in detail below with reference to the accompanying drawings and embodiments.

[0035] First embodiment:

[0036] like Figure 1-6 As shown, an improved electric furnace comprises a furnace shell 1 and a control box 2 connected to each other, a furnace cavity 101 is arranged in the furnace shell 1, a heating element 3 is arranged 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;

[0037] The furnace shell 1 is provided with an installation cavity 102 , and the installation cavity 102 is provided with an opening 102 - 1 open to the outside, and the control box 2 is installed in the installation cavity 102 along the opening 102 - 1 .

[0038] A mounting cavity 102 for placing the control box 2 is provided on the furnace shell 1, and the shape and position of the mounting cavity 102 can be set arbitrarily according to needs.

[0039] The furnace shell 1 includes a surface shell 103 and a bottom shell 104 .

[0040] The mounting cavity 102 is disposed on the surface shell 103 .

[0041] The control box 2 is provided with a back plate 201, on which a first wire hole 201-1 is provided, and on the inner side of the mounting cavity 102 is provided a partition 105 for separating the furnace cavity 101 and the mounting cavity 102, on which a second wire hole 105-1 is provided, and the circuit board 4 and the heating element 3 are electrically connected by means of a wire 5 passing through the first wire hole 201-1 and the second wire hole 105-1.

[0042] A first connecting hole 105-2 is provided on the partition 105, a second connecting hole 201-2 corresponding to the first connecting hole 105-2 is provided on the back plate 201, a second connecting column 201-3 corresponding to the second connecting hole 201-2 extends in the control box 2, and the first connecting hole 105-2, the second connecting hole 201-2 and the second connecting column 201-3 are connected by fasteners to fix the control box 2 in the mounting cavity 102.

[0043] The control box 2 can also be installed in the installation cavity 102 by snap-fitting or other forms of connection.

[0044] 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.

[0045] 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 a circuit board.

[0046] 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.

[0047] Since the installation cavity 102 is arranged in a concave form in the furnace shell 1 , the control box 2 can form an integrated shape with the furnace shell 1 .

[0048] In addition, the control box 2 is detachable as an independent module, which is convenient for maintenance and upgrading. The heating element 3 in the furnace cavity 101 will not affect the electronic control device (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.

[0049] Second embodiment:

[0050] like Figure 7 As shown, the mounting cavity 102 is disposed on the bottom shell 104 , and the remaining structures are the same as those of the first embodiment, which will not be described in detail herein.

[0051] Third embodiment:

[0052] like Figure 8 As shown, a portion of the mounting cavity 102 is disposed on the surface shell 103 , and another portion is disposed on the bottom shell 104 . The remaining structure is the same as that of the first embodiment and will not be described in detail herein.

[0053] Fourth embodiment:

[0054] like Figure 9-10 As shown, a heat-insulating distance is formed between the mounting cavity 102 and the control box 2; when the control box is installed in the mounting cavity 102, the control box is fixed in the mounting cavity 102 by connecting columns or other connecting structures, and a reasonable distance is formed between the control box 2 and the mounting cavity 102, thereby effectively improving the heat-insulating effect.

[0055] Specifically, Fig. 9 As shown, the installation cavity 102 is openly arranged in the furnace shell 1. When the control box 2 is installed in the installation cavity 102, the control box 2 and the side wall of the installation cavity 102 form a heat insulation distance L1, wherein the installation cavity 102 is connected and fixed to the control box 2 through a connecting column, and at the same time, the connecting column 106 also plays a role in forming the heat insulation distance L1.

[0056] The above-mentioned distance L1 can also be applied to the first, second and third embodiments, as long as the size of the control box 2 is smaller than the installation cavity 102 .

[0057] 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 improved electric furnace, comprising a furnace shell (1) and a control box (2) connected to each other, 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: The furnace shell (1) is provided with an installation cavity (102), the installation cavity (102) is provided with an opening (102-1) open to the outside, and the control box (2) is installed in the installation cavity (102) along the opening (102-1).

2. An improved electric furnace according to claim 1, characterized in that: The furnace shell (1) comprises a surface shell (103) and a bottom shell (104).

3. An improved electric furnace according to claim 2, characterized in that: The mounting cavity (102) is arranged on the surface shell (103).

4. An improved electric furnace according to claim 2, characterized in that: The mounting cavity (102) is arranged on the bottom shell (104).

5. An improved electric furnace according to claim 2, characterized in that: A portion of the mounting cavity (102) is arranged on the surface shell (103), and another portion is arranged on the bottom shell (104).

6. An improved electric furnace according to claim 1, characterized in that: The control box (2) is provided with a back plate (201), a first wire passing hole (201-1) is provided on the back plate (201), a partition (105) is provided on the inner side of the installation cavity (102) for separating the furnace cavity (101) and the installation cavity (102), a second wire passing hole (105-1) is provided on the partition (105), and the circuit board (4) and the heating element (3) are electrically connected by a wire (5) passing through the first wire passing hole (201-1) and the second wire passing hole (105-1).

7. An improved electric furnace according to claim 6, characterized in that: A first connection hole (105-2) is provided on the partition plate (105), a second connection hole (201-2) corresponding to the first connection hole (105-2) is provided on the back plate (201), a second connection column (201-3) corresponding to the second connection hole (201-2) extends from the control box (2), and the first connection hole (105-2), the second connection hole (201-2) and the second connection column (201-3) are connected by fasteners, so that the control box (2) is fixed in the installation cavity (102).

8. An improved electric furnace according to claim 1, characterized in that: 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.

9. An improved electric furnace according to claim 1, characterized in that: A heat-insulating distance is formed between the installation cavity (102) and the control box (2).

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