Electric furnace with good using effect

Abstract

An electric furnace good in using effect comprises a furnace body and a circuit board, a furnace cavity is formed in the furnace body, a heating body is arranged in the furnace cavity, a control box is installed in the furnace cavity, an installation cavity is formed in the control box, the circuit board is arranged in the installation cavity, the installation cavity and the furnace cavity are mutually independent, and a heat insulation box is further installed in the portion, on the periphery of the control box, of the furnace cavity. The heat insulation box and the control box are arranged at intervals to form a heat insulation cavity; the control box is arranged in the oven cavity, the circuit board is installed in the control box, the heat insulation box is further arranged outside the control box, heat of the oven cavity is isolated by the heat insulation box, the heat insulation cavity and the control box, the influence of the heat of the oven cavity on the installation cavity is greatly reduced, and the heat insulation cavity and the installation cavity are communicated with the outside of the oven body. External cold air can exchange heat with the mounting cavity and the heat insulation cavity, and even if a fan is not used, the temperature in the mounting cavity can be effectively controlled.

Description

Technical Field

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

[0002] After the applicant conducted a large number of patent searches and learned about the products on the market, it was found that the existing electric furnaces have proposed various solutions to solve the heat dissipation or insulation problems of the electronic control devices.

[0003] For example, in the existing patent document retrieved: CN202022025140.8, an air guide structure of an electric furnace, the specification in the document records in paragraphs 0058-0061 that an air induction cavity is arranged between the upper connecting plate and the lower connecting plate, the lower connecting plate and the upper connecting plate form a closed space and are provided with a connecting port, the main control board and the cooling fan are arranged in the air induction cavity, and the cold air is drawn in by the cooling fan, while the main control board is cooled, the cold air is also blown to the heating element to play a heat dissipation role; the structure discloses the use of a closed space to avoid the main control board from being affected by the heat radiation of the heating element, and then the active cooling fan is used to introduce cold air to actively take away the heat in the air induction cavity, thereby further playing a cooling role; but the structure discloses a scheme of using the upper connecting plate and the lower connecting plate to form a closed space to protect the main control board, but its structure is relatively complicated, and it also needs to rely on the cooling fan to dissipate heat, and its manufacturing cost is high.

[0004] 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. Summary of the invention

[0005] The utility model aims to solve the above-mentioned existing problems and provides an electric furnace with good use effect. A control box is arranged in the furnace cavity, a circuit board is installed in the control box, and a heat insulation box is arranged outside the control box. The heat of the furnace cavity is isolated by the heat insulation box, the heat insulation cavity and the control box. The influence of the heat of the furnace cavity on the installation cavity has been greatly reduced, and the heat insulation cavity and the installation cavity are connected with the outside of the furnace body. The cold air from the outside can form heat exchange with the installation cavity and the heat insulation cavity. Even without a fan, the temperature in the installation cavity can be effectively controlled.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] An electric furnace with good use effect comprises a furnace body and a circuit board, wherein a furnace cavity is arranged in the furnace body, a heating element is arranged in the furnace cavity, a control box is installed in the furnace cavity, a mounting cavity is formed in the control box, and the circuit board is arranged in the mounting cavity, wherein the mounting cavity and the furnace cavity are independent of each other, a heat insulation box is also installed in the furnace cavity outside the control box, and the heat insulation box and the control box are spaced apart to form a heat insulation cavity;

[0008] The heat insulation cavity is communicated with the furnace cavity or with the outside of the furnace body.

[0009] A first heat dissipation hole communicating with the outside of the furnace body is provided in the installation cavity.

[0010] The control box is provided with two openings, and the control box is installed in the furnace cavity. The two openings are respectively abutted against the inner end surface of the furnace body, so that the inner end surface of the furnace body and the control box together form an installation cavity.

[0011] The heat-insulating cavity is provided with a second heat dissipation hole which is in communication with the outside of the furnace body.

[0012] The heat-insulating cavity is provided with two groups of second heat-dissipating holes connected with the outside of the furnace body. The two groups of second heat-dissipating holes are respectively arranged at different positions of the heat-insulating cavity so that convection is formed in the two groups of second heat-dissipating holes.

[0013] A guide hole is provided at the upper part of the heat insulation box, and the guide hole is communicated with the furnace cavity.

[0014] 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.

[0015] A connecting column is arranged in the furnace cavity, and connecting ears which are connected and matched with the connecting column through fasteners are respectively arranged on the control box and the heat insulation box.

[0016] The control box is provided with a connecting hole connecting the heat insulation cavity and the installation cavity.

[0017] The control box may be provided with only one opening, and the opening abuts against the inner end surface of the furnace body, so that the inner end surface of the furnace body and the control box together form a mounting cavity.

[0018] The utility model is beneficial in that:

[0019] The utility model discloses an electric furnace with good use effect. A control box is arranged in the furnace cavity, a circuit board is installed in the control box, and a heat insulation box is arranged outside the control box. The heat of the furnace cavity is isolated by the heat insulation box, the heat insulation cavity and the control box. The influence of the heat of the furnace cavity on the installation cavity is greatly reduced. Moreover, the heat insulation cavity and the installation cavity are connected with the outside of the furnace body. The cold air from the outside can form heat exchange with the installation cavity and the heat insulation cavity. Even without a fan, the temperature in the installation cavity can be effectively controlled. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a cross-sectional structural diagram of the first embodiment of the utility model.

[0021] Figure 2 It is a sectional exploded structural diagram of the first embodiment of the utility model.

[0022] Figure 3 It is a cross-sectional structural diagram of the second embodiment of the utility model.

[0023] Figure 4 It is a cross-sectional structural diagram of the third embodiment of the utility model.

[0024] Figure 5 It is a cross-sectional structural diagram of the fourth embodiment of the present utility model.

[0025] Figure 6 It is a cross-sectional structural diagram of the fifth embodiment of the present utility model. DETAILED DESCRIPTION

[0026] The utility model is described in detail below with reference to the accompanying drawings and embodiments.

[0027] First embodiment:

[0028] like Figure 1-Figure 2 As shown, an electric furnace with good use effect includes a furnace body 1 and a circuit board 2. A furnace cavity 101 is provided in the furnace body 1. A heating element 3 is provided in the furnace cavity 101. A control box 4 is installed in the furnace cavity 101. The control box 4 forms an installation cavity 401. The circuit board 2 is arranged in the installation cavity 401. The installation cavity 401 and the furnace cavity 101 are independent of each other. A heat insulation box 5 is also installed in the furnace cavity 101 outside the control box 4. The heat insulation box 5 and the control box 4 are spaced apart to form a heat insulation cavity 6.

[0029] The heat-insulating cavity 6 is communicated with the furnace cavity 101 or with the outside of the furnace body 1 .

[0030] In this embodiment, although the control box 4 is arranged in the furnace cavity 101, the control box 4 is used as an independent box body, and the circuit board is installed in the control box. An insulation box is also arranged outside the control box. The heat of the furnace cavity is isolated by the insulation box, the insulation cavity and the control box. The influence of the heat of the furnace cavity on the installation cavity has been greatly reduced, and the insulation cavity and the installation cavity are connected to the outside of the furnace body. The cold air from the outside can form heat exchange with the installation cavity and the insulation cavity. Even without a fan, the temperature in the installation cavity can be effectively controlled.

[0031] Independent of each other: it may mean that the installation cavity 401 and the furnace cavity 101 are not connected to each other, or the installation cavity 401 and the furnace cavity 101 are isolated from each other.

[0032] A first heat dissipation hole 402 communicating with the outside of the furnace body 1 is defined in the installation cavity 401 .

[0033] The control box 4 is provided with two openings 403 and 404. The control box 4 is installed in the furnace cavity 101. The two openings 403 and 404 are respectively abutted against the inner end surface of the furnace body 1, so that the inner end surface of the furnace body 1 and the control box 4 together form the installation cavity 401. The structure of the heat insulation box 5 is the same as that of the control box 4, and it also has two openings. Figure 2 , I will not go into details here.

[0034] The heat-insulating cavity 6 is provided with a second heat dissipation hole 405 communicating with the outside of the furnace body 1 .

[0035] A guide hole 501 is provided at the upper portion of the heat insulation box 5 , and the guide hole 501 is communicated with the furnace chamber 101 .

[0036] 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.

[0037] A connecting column 102 is provided in the furnace cavity 101, the control box 4 is provided with a first connecting lug 406 connected to the connecting column 102 via a fastener, and the insulation box 5 is provided with a second connecting lug 502 connected to the connecting column 102 via a fastener.

[0038] In addition to fasteners, snap-fit ​​or other forms of mounting connection structures may also be used to achieve a detachable connection.

[0039] Second embodiment:

[0040] like Figure 3 As shown, similar to the first embodiment, the improvement lies in that two groups of second heat dissipation holes 405 connected to the outside of the furnace body 1 are opened in the insulation cavity 6, and the two groups of second heat dissipation holes 405 are respectively arranged at different positions of the insulation cavity 6, so that the two groups of second heat dissipation holes 405 form convection; after the convection is formed, the heat dissipation effect is better.

[0041] Furthermore, the first heat dissipation holes 402 may also be arranged in two groups, and similarly the positions of the two groups are different, so as to form a convection effect.

[0042] Third embodiment:

[0043] like Figure 4 As shown, different from the first and second embodiments, the heat insulation box is cancelled and only the control box 4 is retained. The circuit board 2 is arranged in the installation cavity 401 of the control box, and two groups of first heat dissipation holes 402 at different positions are retained, which can also achieve better heat dissipation effect.

[0044] Fourth embodiment:

[0045] like Figure 5 As shown, what is different from the first embodiment is that: the control box 4 is provided with a connecting hole 407 connecting the heat insulating cavity 6 and the installation cavity 401; the connection between the installation cavity 401 and the heat insulating cavity 6 is realized; the heat in the control box 4 can enter the heat insulating cavity 6 through the connecting hole 407 for buffering or discharge.

[0046] Fifth embodiment:

[0047] like Figure 6As shown, the control box 4 may be provided with only one opening 408, and the opening 408 abuts against the inner end surface of the furnace body 1, so that the inner end surface of the furnace body 1 and the control box 4 together form a mounting cavity 401; the control box 4 may be connected to the inner end surface of the furnace body 1 by fasteners or snap connections or other methods; in addition, a heat-insulating cavity 6 is formed between the control box 4 and the heat-insulating box 5 of this structure, and since a distance is formed between the control box 4 and the bottom of the furnace shell 1, the volume of the heat-insulating cavity 6 is increased compared with the first embodiment, and the heat-insulating effect is better.

[0048] 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 use effect, comprising a furnace body (1) and a circuit board (2), wherein a furnace cavity (101) is provided in the furnace body (1), a heating element (3) is provided in the furnace cavity (101), a control box (4) is installed in the furnace cavity (101), an installation cavity (401) is formed in the control box (4), and the circuit board (2) is arranged in the installation cavity (401), wherein the electric furnace body (1) is provided with a furnace cavity (101), wherein the heating element (3) is provided in the furnace cavity (101), and wherein the heating element (3) is provided in the ... The installation cavity (401) and the furnace cavity (101) are independent of each other. A heat insulation box (5) is also installed in the furnace cavity (101) outside the control box (4). The heat insulation box (5) and the control box (4) are spaced apart to form a heat insulation cavity (6).

2. An electric furnace with good use effect according to claim 1, characterized in that: The heat-insulating cavity (6) is in communication with the furnace cavity (101) or with the outside of the furnace body (1).

3. An electric furnace with good use effect according to claim 2, characterized in that: The installation cavity (401) is provided with a first heat dissipation hole (402) which is in communication with the outside of the furnace body (1).

4. The electric furnace with good use effect according to claim 1 is characterized in that: The control box (4) is provided with two openings (403, 404). The control box (4) is installed in the furnace cavity (101). The two openings (403, 404) are respectively abutted against the inner end surface of the furnace body (1), so that the inner end surface of the furnace body (1) and the control box (4) together form a mounting cavity (401).

5. The electric furnace with good use effect according to claim 2, characterized in that: A second heat dissipation hole (405) communicating with the outside of the furnace body (1) is provided in the heat insulation cavity (6).

6. An electric furnace with good use effect according to claim 2, characterized in that: Two groups of second heat dissipation holes (405) connected to the outside of the furnace body (1) are provided in the heat insulation cavity (6); the two groups of second heat dissipation holes (405) are respectively arranged at different positions of the heat insulation cavity (6) so that convection is formed in the two groups of second heat dissipation holes (405).

7. The electric furnace with good use effect according to claim 2, characterized in that the heat insulation A guide hole (501) is provided at the upper portion of the box (5), and the guide hole (501) is communicated with the furnace chamber (101).

8. The electric furnace with good use effect 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. The electric furnace with good use effect according to claim 1, characterized in that: A connecting column (102) is provided in the furnace cavity (101), the control box (4) is provided with a first connecting lug (406) connected to and matched with the connecting column (102) via a fastener, and the heat insulation box (5) is provided with a second connecting lug (502) connected to and matched with the connecting column (102) via a fastener.

10. The electric furnace with good use effect according to claim 1, characterized in that: The control box (4) is provided with a communication hole (407) connecting the heat insulation cavity (6) and the installation cavity (401).

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