CN111795408A - Novel electric heating furnace - Google Patents

Abstract

The invention relates to a novel electric heating furnace, which comprises a furnace body and a heating disc arranged in the furnace body, wherein a middle plate and a heat insulation cover are arranged in the main body, the top of the heat insulation cover is provided with an open opening and forms an inner cavity for covering and connecting the periphery of the heating disc, the middle plate is positioned below the heat insulation cover, a plurality of middle plate air holes are formed in the middle plate, a plurality of heat insulation cover air holes are distributed in the heat insulation cover, the bottom of the furnace body is provided with an air inlet hole, the top of the furnace body is provided with an air outlet hole, and the air inlet hole, the middle plate air holes, the heat insulation cover; still be equipped with the backup pad of weighing, both mutual fixed connection in the furnace body, the backup pad bottom equipartition of weighing is equipped with a plurality of weighing device, weighing device downwardly protruding furnace body and formation furnace body's supporting legs.

Description

Novel electric heating furnace

Technical Field

The invention relates to a novel electric heating furnace.

Background

The electric heating furnaces sold in the market are various, such as an electric ceramic furnace, an induction cooker and the like, most of the electric heating furnaces only have a heating function, and the functions are single. In addition, the conventional electric heating furnace has poor heat dissipation effect, needs a fan rotating at a high speed to use and has high noise.

Disclosure of Invention

The invention aims to provide a novel electric heating furnace which has a weighing function and a good heat dissipation effect.

The purpose of the invention is realized as follows:

a novel electric heating furnace comprises a furnace body and a heating disc arranged in the furnace body, wherein a middle plate and a heat insulation cover are arranged in the main body, an open opening is formed in the top of the heat insulation cover and forms an inner cavity which is used for being connected with the periphery of the heating disc in a covering mode, the middle plate is located below the heat insulation cover, a plurality of middle plate air holes are formed in the middle plate, a plurality of heat insulation cover air holes are distributed in the heat insulation cover, an air inlet hole is formed in the bottom of the furnace body, an air outlet hole is formed in the top of the furnace body, and the air inlet hole, the middle plate air holes; still be equipped with the backup pad of weighing, both mutual fixed connection in the furnace body, the backup pad bottom equipartition of weighing is equipped with a plurality of weighing device, weighing device downwardly protruding furnace body and formation furnace body's supporting legs.

The aperture of the middle plate air hole and the aperture of the heat shield air hole are gradually reduced from the air inlet end to the air outlet end.

The middle plate air hole and the heat shield air hole are vertically arranged, the air outlet end of the air inlet hole is connected with the furnace body through the space between the middle plate and the furnace body, the air outlet end of the middle plate air hole is connected with the air inlet end of the heat shield air hole in an abutting mode, abutting contact parts of the two holes are in parallel and level butt joint, and the air outlet end of the heat shield air hole is connected with the air inlet end of the air outlet hole through an inner cavity of the heat shield; the air inlet end of the heat shield air hole is provided with an installation part, and the air outlet end of the middle plate air hole is inserted into the installation part.

The heat shield is arranged at the top of the furnace body, the middle plate is arranged below the heat shield, the weighing support plate is arranged below the middle plate, the weighing support plate is provided with a heat dissipation clearance hole, and the air inlet hole and the middle plate air hole are communicated through the heat dissipation clearance hole.

The furnace body is internally provided with a control panel which is arranged at the side part or the bottom of the middle plate, or the control panel is arranged on the weighing support plate.

The top of the weighing support plate is provided with heat insulation cotton at a position corresponding to the weighing device.

But weighing device includes elastically deformable's support to and set up the weighing sensor in support elastic deformation department, the outside cladding of weighing sensor has the parcel portion that forms the supporting legs.

The bottom of the weighing support plate is provided with a side groove for lateral insertion of the support, the side groove is provided with an opening corresponding to the position of the support in which the support is inserted, and the opening is provided with an elastic buckle for buckling the support.

And a cooling fan is arranged on the air inlet hole, or a cooling fan is arranged in the furnace body.

And a damping structure is arranged between the radiating fan and the furnace body.

According to the invention, the weighing device is arranged in the furnace body, and the electric heating furnace can be used for weighing cooked objects when in use and can be used as a starting switch and a control switch of the electric heating furnace, so that the electric heating furnace has more functions and richer use scenes; the heating furnace has the advantages that the heat dissipation channel is arranged in the furnace body, so that the heating furnace can realize natural convection heat dissipation without the help of a fan, the noise is not generated when the heating furnace works, or the rotating speed of the fan can be greatly reduced even if the heat dissipation of the heat dissipation fan is increased, the working noise is greatly reduced, in addition, the interference of the working vibration of the heat dissipation fan on the weighing device 4 can be greatly reduced, the weighing performance of the whole machine is more accurate, and the use experience of consumers is better.

The invention can be widely applied to various common electric heating furnaces, such as induction cookers, electric ceramic furnaces and the like.

Additional aspects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

Fig. 1 is an exploded view 1 of a first embodiment of the present invention.

Fig. 2 is an exploded view 2 of the first embodiment of the present invention.

Fig. 3 is a view of the assembly of the weigh support plate and the weigh apparatus of the first embodiment of the present invention, fig. 1.

Fig. 4 is a view of the assembly of the weigh support plate and the weigh apparatus of the first embodiment of the present invention, fig. 2.

Fig. 5 is an assembly view of the first embodiment of the present invention.

Fig. 6 is a schematic structural diagram of a heat dissipation state according to the first embodiment of the present invention.

Fig. 7 is a schematic structural diagram of a heat dissipation state according to a second embodiment of the present invention.

Fig. 8 is a schematic structural diagram of a heat dissipation state according to a third embodiment of the present invention.

Fig. 9 is a schematic structural diagram of a heat dissipation state according to a fourth embodiment of the invention.

Fig. 10 is a schematic structural view of a fifth embodiment of the invention in a heat dissipation state.

Fig. 11 is a schematic structural view of a sixth embodiment of the invention in a heat dissipation state.

Detailed Description

The invention is further described with reference to the following figures and examples.

First embodiment

Referring to fig. 1 to 6, the novel electric heating furnace includes a furnace body 1 and a heating plate 2 disposed therein, wherein a middle plate 5 and a heat shield 6 are disposed in the main body 1, an open opening 60 is disposed at the top of the heat shield 6 and forms an inner cavity for covering the periphery of the heating plate 2, the middle plate 5 is disposed below the heat shield 6, a plurality of middle plate air holes 51 are disposed thereon, a plurality of heat shield air holes 61 are disposed on the heat shield 6, an air inlet hole 11 is disposed at the bottom of the furnace body 1, an air outlet hole 12 is disposed at the top of the furnace body 1, the air outlet hole 12 of the embodiment is disposed at the top of the furnace body 1, and the air inlet hole 11, the middle plate air holes 51, the heat shield air holes 61, and the air outlet; still be equipped with the backup pad 3 of weighing, both mutual fixed connection in the furnace body 1, 3 bottom equipartitions of backup pad of weighing are equipped with a plurality of weighing device 4, weighing device 4 downwardly protruding furnace body 1 and formation furnace body 1's supporting legs.

By arranging the weighing device 4 in the furnace body 1, when the electric heating furnace is used, cooked objects are placed on the furnace body 1, so that the weighing function of the electric heating furnace can be realized; or, when the electric heater is in use, the cooked object is placed on the furnace body 1, and after the weighing device 4 obtains a weight signal, the electric heater can be used as a starting switch to start the heating plate 2 (namely, the power supply of the heating plate 2 is controlled to be given), so that the function of automatically starting heating is realized, or in the heating process of the electric heater, the weighing device 4 detects that the weight of the cooked object is obviously changed (if the liquid is boiled, the evaporation is accelerated, so that the weight is reduced), the heating plate 2 can be controlled to be closed or the power is changed, and the function of automatically turning off or automatically controlling cooking is realized. Therefore, the weighing device 4 is arranged in the electric heating furnace, so that the electric heating furnace can be used for weighing cooked objects when in use, and can be used as a starting switch and a control switch of the electric heating furnace, so that the electric heating furnace has more functions, and the use scene is richer.

Through set up heat dissipation channel in furnace body 1, make the electric heater can realize the heat dissipation of natural convection, need not with the help of fan heat dissipation, the electric heater during operation no longer produces the noise, perhaps, even increase radiator fan heat dissipation, also can reduce the fan rotational speed by a wide margin, and noise at work reduces by a wide margin, in addition, still can greatly reduced radiator fan work vibrations to the interference of weighing device 4, make the performance that the complete machine weighed more accurate, consumer uses and experiences better.

When the electric heating furnace works, the heating disc 2 generates heat and radiates to the interior of the furnace body 1, under the shielding effect of the heat shield 6 and the middle plate 5, the electric heating furnace is divided into three temperature layers with the temperature gradually reduced from top to bottom, the air outlet 12 is positioned at the top of the furnace body 1 and at the highest point, the air inlet 11 is arranged at the bottom of the furnace body 1 and at the lowest point, the heat shield air outlet 61 and the middle plate air outlet 51 are positioned in the furnace body 1 and between the two, according to the principle of hot air rising, the interior of the electric heating furnace generates air flow from bottom to top, the air flow enters from the air inlet 11, then flows through the heat dissipation channel and then flows out from the air outlet 12, thereby realizing the heat dissipation of natural convection, the air flow path is shown in figure 6, by the technical scheme, the electric heating furnace can also dissipate the heat to the interior of the electric heating furnace without the help of a fan, no noise is, guarantee its job stabilization nature and practical life, in addition, because there is the radiating air current of incessant natural convection in the inside of heat shield 6, even the longer time work of dish 2 that generates heat, the temperature can not incessantly rise in the heat shield 6 yet, also can effectively protect the long-term stable work of dish 2 that generates heat.

Or, even if a heat radiation fan (no heat radiation fan is arranged in the embodiment) is additionally arranged in the electric heating furnace for heat radiation (the heat radiation fan generates heat radiation airflow for active heat radiation), the rotating speed of the fan can be effectively and greatly reduced under the action of the heat radiation technical scheme of the heat radiation channel, and the technical scheme of additionally arranging the heat radiation fan in the electric heating furnace is particularly suitable for long-time use scenes such as medicine stewing, braising, stewing or other cooking modes lasting for a long time.

Further, the apertures of the middle plate wind hole 51 and the heat shield wind hole 61 are gradually reduced from the wind inlet end to the wind outlet end. The middle plate air hole 51 and the heat shield air hole 61 in this embodiment are conical holes, which may be replaced by a horn hole, a trapezoid hole, a polygonal taper hole (such as a triangular taper hole), and the like, and those skilled in the art can understand them. Through adopting this technical scheme, pass through medium plate wind hole 51 when the air current, when heat exchanger wind hole 61 gets into heat exchanger 6, medium plate wind hole 51, the structural design who separates the big-end-up in the heat exchanger wind hole 61, the cold air flow pressure that makes the entering increases, further promote the difference in temperature degree of cold and hot air, the radiating effect is better, further promote the convection degree of cold and hot air, also because the existence of this pressure difference, can effectively prevent 2 during operations of dish that generates heat high fever that see through heat exchanger wind hole 61 toward the external radiation who separates heat exchanger 6, further guarantee that the electric heater is inside to be in the operating temperature lower relatively.

Furthermore, the middle plate wind holes 51 and the heat shield wind holes 61 are vertically arranged, so that the use of convection heat dissipation from bottom to top is met, the flowing resistance of airflow is reduced, the flowing speed and the flowing strength of the airflow are improved, the wind outlet end of the wind inlet hole 11 is connected with the furnace body 1 through the interval between the middle plate 5, the sectional area of the interval is far larger than the total area of the wind outlet end of the wind inlet hole 11, the flowing resistance of the airflow is also favorably reduced, the wind outlet end of the middle plate wind hole 51 is connected with the wind inlet end of the heat shield wind holes 61 in an abutting mode, the abutting contact parts of the two holes are in flush butt joint, as shown in figure 5, the connection part of the two holes is excessively smooth, the flowing resistance of the airflow is also favorably reduced, the wind outlet end of the heat shield wind hole 61 is connected with the wind inlet end of the wind outlet hole 12 through the inner cavity of the heat shield 6, the sectional area of the inner cavity of the heat shield 6 is, the resistance of airflow flowing through the air conditioner is also reduced; the air inlet end that separates heat exchanger wind hole 61 is equipped with installation department 611, in the installation department 611 was pegged graft to the air-out end of medium plate wind hole 51, installation department 611 can play the guide effect, makes medium plate air inlet 61 can insert more smoothly through installation department 511 in separating heat exchanger wind hole 51, improves assembly efficiency, also can guarantee to separate heat exchanger wind hole 61 and medium plate wind hole 51 that set up in groups and can aim at each other, guarantees the circulation of air effect, reduces the windage.

Further, the heat shield 6 is installed at the top of the furnace body 1, the middle plate 5 is installed below the heat shield 6, the weighing support plate 3 is installed below the middle plate 5, namely, the heat shield 6, the middle plate 5 and the weighing support plate 3 are fixedly connected, when weighing is carried out, the weight of a cooking object can be uniformly pressed on the weighing device 4, the weighing support plate 3 is provided with a heat dissipation clearance hole 34 (the heat dissipation clearance hole 34 of the embodiment is arranged in the middle of the weighing support plate 3), the air inlet 11 and the middle plate air hole 51 are communicated through the heat dissipation clearance hole 34, and the weighing support plate 3 is prevented from blocking the circulation of air of a heat dissipation channel.

Further, be equipped with control panel 100 in furnace body 1, control panel 100 installs the lateral part or the bottom at medium plate 5, perhaps, control panel 100 installs on the backup pad 3 of weighing, this embodiment control panel 100 installs at the lateral part of medium plate 5, it is through thermal shield 6, the separation of medium plate 5, can effectively avoid the high fever direct radiation that generates heat dish 2 production to it, guarantee that it can move under lower environment operating temperature, guarantee its stability and life, in addition, the produced radiating air current of radiating passage can flow through near control panel 100 earlier, take away near its heat and further guarantee that it can move under lower environment operating temperature.

Further, the position that the backup pad 3 top of weighing corresponds weighing device 4 is equipped with thermal-insulated cotton 31, can further alleviate weighing device 4's temperature rise.

Further, the weighing device 4 comprises an elastically deformable bracket 41, and a load cell disposed at the elastically deformed position of the bracket 41, and the load cell is externally covered with a wrapping portion 42 forming a supporting foot, as will be understood by those skilled in the art.

Furthermore, the bottom of the weighing support plate 3 is provided with a side groove 32 for lateral insertion of the bracket 41, the side groove 32 is provided with an opening corresponding to the position of the bracket 41 for insertion, the opening is provided with an elastic buckle 33 for buckling the bracket 41, the weighing device 4 and the weighing support plate 3 can be conveniently and rapidly installed, the assembly between the weighing device and the weighing support plate does not need to use screws, and the weighing support plate is simpler in structure and quicker to assemble.

The heat dissipation channel of the embodiment adopts natural heat dissipation without a heat dissipation fan.

Second embodiment

Referring to fig. 7, the main difference between the electric heating furnace with weighing function and the first embodiment is that a cooling fan 13 is installed on the air inlet 11, and the cooling fan 13 can generate cooling air flow, because the cooling technical solution of the cooling channel is adopted, the rotating speed of the cooling fan 13 is greatly reduced, which is beneficial to muting and avoiding the influence of working vibration of the cooling fan 13 on weighing detection data of the weighing device 4, in addition, the control board 100 of the embodiment is installed at the bottom of the middle board 5, and the cooling fan 13 can blow air to the control board 100, so as to further improve the cooling effect of the control board 100, and those skilled in the art can understand the present invention.

In addition, a damping structure may be further disposed between the heat dissipation fan 13 and the furnace body 1 to further reduce the working vibration of the heat dissipation fan 13, and a conventional damping structure such as a damping spring or a damping silica gel may be further preferably adopted, which can be understood by those skilled in the art.

Other parts not described above, like the first embodiment, are not repeated.

Third embodiment

Referring to fig. 8, the main difference between the electric heating furnace with weighing function and the second embodiment is that the heat dissipation clearance hole 34 is disposed at the side of the weighing support plate 3, the heat dissipation fan 13 is disposed in the furnace body 1, specifically below the middle plate 5 and above the heat dissipation clearance hole 34, the control plate 100 is disposed beside the heat dissipation fan 13, and when the heat dissipation fan 13 works, a negative pressure can be generated near the control plate 100, so that an air flow is formed near the control plate 100 for heat dissipation, which can be understood by those skilled in the art.

Other parts not described above, like the second embodiment, are not repeated.

Fourth embodiment

Referring to fig. 9, the electric heating furnace with weighing function mainly differs from the second embodiment in that the control board 100 is mounted on the weighing support plate 3, the cooling fan 13 is disposed in the furnace body 1 and between the weighing support plate 3 and the middle plate 5, the control board 100 is located beside the cooling fan 13, and when the cooling fan 13 works, a negative pressure can be generated near the control board 100, so that an air flow is formed near the control board 100 for cooling, which can be understood by those skilled in the art.

Other parts not described above, like the second embodiment, are not repeated.

Fifth embodiment

Referring to fig. 10, the electric heating furnace with weighing function mainly differs from the second embodiment in that a control board 100 is mounted on a weighing support plate 3 and located above a heat dissipation clearance hole 34, a heat dissipation fan 13 is disposed in the furnace body 1 and located between the weighing support plate 3 and the middle plate 5 and located above the control board 100, and when the heat dissipation fan 13 is operated, a negative pressure can be generated near the control board 100, so that an air flow is formed near the control board 100 for heat dissipation, which can be understood by those skilled in the art.

Other parts not described above, like the second embodiment, are not repeated.

Fifth embodiment

Referring to fig. 11, the main difference between the electric heating furnace with weighing function and the first embodiment is that the air outlet 12 of the present embodiment is provided at the periphery of the top of the furnace body 1, and at this time, the air outlet 12 is of a hidden design, so that the appearance of the whole electric heating furnace is more beautiful.

Other parts not described above, like the first embodiment, are not repeated.

As can be seen from the above embodiments, the cooling fan 13 and the control board 100 can be combined in more setting positions, and these different combination modes are all simple variations of the present invention and are not described in detail.

The foregoing is a preferred embodiment of the present invention, and the basic principles, principal features and advantages of the invention are shown and described. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the present invention, but various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.

Claims (10)

1. The novel electric heating furnace comprises a furnace body (1) and a heating disc (2) arranged in the furnace body, and is characterized in that a middle plate (5) and a heat insulation cover (6) are arranged in the main body (1), an open opening (60) is formed in the top of the heat insulation cover (6) and forms an inner cavity used for being covered and connected with the periphery of the heating disc (2), the middle plate (5) is positioned below the heat insulation cover (6), a plurality of middle plate air holes (51) are formed in the middle plate air holes, a plurality of heat insulation cover air holes (61) are distributed in the heat insulation cover (6), an air inlet hole (11) is formed in the bottom of the furnace body (1), an air outlet hole (12) is formed in the top of the furnace body, and the air inlet hole (11), the middle plate air holes (51), the heat insulation cover air; still be equipped with in furnace body (1) backup pad (3), both mutual fixed connection of weighing, the backup pad (3) bottom equipartition of weighing is equipped with a plurality of weighing device (4), weighing device (4) protrusion furnace body (1) and the supporting legs that forms furnace body (1) down.

2. The novel electric heating furnace as claimed in claim 1, wherein the apertures of the middle plate wind hole (51) and the heat shield wind hole (61) are gradually reduced from the wind inlet end to the wind outlet end.

3. The novel electric heating furnace of claim 1, characterized in that the middle plate air holes (51) and the heat shield air holes (61) are vertically arranged, the air outlet ends of the air inlet holes (11) are connected through the space between the middle plate (5) and the furnace body (1), the air outlet ends of the middle plate air holes (51) are connected with the air inlet ends of the heat shield air holes (61) in an abutting mode, abutting contact parts of the two air holes are in flush butt joint, and the air outlet ends of the heat shield air holes (61) are connected with the air inlet ends of the air outlet holes (12) through the inner cavity of the heat shield (6); the air inlet end of the heat insulation cover air hole (61) is provided with an installation part (611), and the air outlet end of the middle plate air hole (51) is inserted into the installation part (611).

4. The novel electric heating furnace as claimed in claim 1, wherein the heat shield (6) is installed on the top of the furnace body (1), the middle plate (5) is installed below the heat shield (6), the weighing support plate (3) is installed below the middle plate (5), the weighing support plate (3) is provided with heat dissipation clearance holes (34), and the air inlet holes (11) and the middle plate air holes (51) are communicated through the heat dissipation clearance holes (34).

5. The novel electric heating furnace as claimed in claim 1, characterized in that a control panel (100) is arranged in the furnace body (1), the control panel (100) is arranged at the side part or the bottom part of the middle plate (5), or the control panel (100) is arranged at the bottom part of the furnace body on the weighing support plate (3).

6. The new electric heating furnace as claimed in claim 1, characterized in that the top of the weighing support plate (3) is provided with heat insulation cotton (31) corresponding to the position of the weighing device (4).

7. The new electric heating furnace as claimed in claim 1, characterised in that the weighing device (4) comprises an elastically deformable bracket (41), and a load cell arranged at the elastic deformation of the bracket (41), which is externally covered by a wrapping (42) forming a supporting foot.

8. The new electric heating furnace as claimed in claim 4, characterized in that the bottom of the weighing support plate (3) is provided with a side groove (32) for the lateral insertion of the bracket (41), the side groove (32) is provided with an opening corresponding to the insertion position of the bracket (41), and the opening is provided with an elastic buckle (33) for buckling the bracket (41).

9. The electric heating furnace as claimed in any one of claims 1-9, wherein a heat dissipation fan (13) is installed on the air inlet (11), or a heat dissipation fan (13) is installed in the furnace body (1).

10. The new electric heating furnace as claimed in claim 9, characterized in that a shock-absorbing structure is provided between the heat-dissipating fan (13) and the furnace body (1).

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