Weighing electric furnace

Abstract

The utility model provides a kind of weighing electric furnace, comprising: main body, its inside has electric appliance cavity, the side wall of main body is equipped with with outside communication air inlet in the position of electric appliance cavity.The heating component is located above the main body, and the air outlet is formed between heating component and main body.Fan mounting groove is between air inlet and air outlet, fan mounting groove is vertically arranged, and heat dissipation fan is installed and connected in fan mounting groove, and the heat dissipation air duct that air inlet, electric appliance cavity, fan mounting groove, heating component and air outlet are sequentially passed through is formed between air inlet and air outlet by heat dissipation fan.The weight sensor is located in the outside position of electric appliance cavity corresponding fan mounting groove, and the vertical projection of weight sensor and heat dissipation fan is mutually staggered.Both can improve the weighing accuracy of weight sensor by the heat dissipation cooling of weight sensor, and can better utilize the space position of horizontal direction in electric appliance cavity, and the vertical space position that weighing electric furnace overall occupies can be relatively reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of household appliances, specifically to a weighing electric furnace. Background Technology

[0002] A weighing electric stove is a cooking device with a weighing function that can accurately measure the weight of ingredients during cooking, making it convenient for users to cook in quantitative quantities.

[0003] Weighing furnaces contain weighing devices. To reduce the impact of high temperatures on the weighing devices during operation and improve weighing accuracy, cooling fans are usually installed inside the weighing furnace. Generally, the weighing devices and cooling fans are distributed vertically. However, this arrangement requires the weighing furnace to occupy a relatively large vertical space.

[0004] Therefore, further improvements are needed. Utility Model Content

[0005] Based on this, the purpose of this utility model is to provide a weighing furnace that, by setting the weight sensor on the outside of the fan mounting slot inside the electrical cavity, can not only cool down the weight sensor through the cooling fan and improve the weighing accuracy of the weight sensor, but also make better use of the horizontal space inside the electrical cavity, thereby relatively reducing the vertical space occupied by the weighing furnace as a whole.

[0006] A weighing electric furnace designed for this purpose includes: The main body has an electrical cavity inside, and the side wall of the main body has an air inlet that communicates with the outside, corresponding to the position of the electrical cavity.

[0007] The heating element is located above the main body, and an air outlet is formed between the heating element and the main body.

[0008] There is a fan mounting slot between the air inlet and the air outlet. The fan mounting slot is set vertically and a cooling fan is installed in the fan mounting slot. A cooling air duct is formed between the air inlet and the air outlet through the cooling fan, which passes through the air inlet, the electrical cavity, the fan mounting slot, the heating component and the air outlet in sequence.

[0009] The weight sensor is located on the outside of the fan mounting slot inside the electrical cavity, and the vertical projection of the weight sensor and the cooling fan are offset from each other.

[0010] The heating assembly includes a panel and a heating plate. An upper bracket is fixedly connected to the lower side of the panel. The upper bracket is in the shape of a ring and is located on the outer side of the heating plate. A lower bracket is fixedly connected to the lower side of the upper bracket by a locking device. The lower bracket abuts against the lower side of the heating plate. The lower bracket exerts an upward pushing force on the heating plate, causing the upper side of the heating plate to press against the lower side of the panel.

[0011] The upper bracket is equipped with a pressure transmission component for applying a downward force to the weight sensor. The pressure transmission component extends downward through the main body into the electrical cavity and connects with the weight sensor.

[0012] The pressure transmission component includes a weighing plate and several circumferentially distributed support connecting columns. The upper end of the support connecting column is integrally formed with the upper support, and the lower end of the support connecting column extends downward through the main body and enters the electrical cavity. The weighing plate is connected and fixed to the lower end of the support connecting column and the weight sensor respectively.

[0013] The weight sensor is a single strain gauge sensor, which has a fixed end and a weighing end. The fixed end of the strain gauge sensor is connected and fixed to the main body through a first fixing mechanism, and the weighing end of the strain gauge sensor is connected and fixed to a pressure transmission component.

[0014] The first fixing mechanism includes a fixing plate and a first connecting column. The fixing plate is connected and fixed to the fixing end of the strain gauge sensor. One end of the first connecting column is connected and fixed to the fixing plate, and the other end of the first connecting column is connected and fixed to the upper side of the corresponding electrical cavity inside the main body, or the other end of the first connecting column is integrally formed with the upper side of the corresponding electrical cavity inside the main body; or, the other end of the first connecting column is connected and fixed to the lower side of the corresponding electrical cavity inside the main body, or the other end of the first connecting column is integrally formed with the lower side of the corresponding electrical cavity inside the main body.

[0015] Alternatively, the first fixing mechanism is a supporting boss located on the lower side of the corresponding electrical cavity inside the main body. The supporting boss is integrally formed with the main body and is connected and fixed to the fixing end of the strain gauge sensor.

[0016] The weight sensor consists of multiple strain gauge sensors, each with a fixed end and a weighing end. The center of the fan mounting slot coincides with the center of the heating component, and different strain gauge sensors are evenly distributed around the outside of the fan mounting slot.

[0017] The number of strain gauge sensors is two or more. The weighing end of each strain gauge sensor is connected and fixed to the pressure transmission component. The fixed end of each strain gauge sensor is connected to one end of a second connecting post. The other end of the second connecting post is connected and fixed to the upper side of the corresponding electrical cavity inside the main body, or the other end of the second connecting post is integrally formed with the upper side of the corresponding electrical cavity inside the main body; or, the other end of the second connecting post is connected and fixed to the lower side of the corresponding electrical cavity inside the main body, or the other end of the second connecting post is integrally formed with the lower side of the corresponding electrical cavity inside the main body.

[0018] The electrical cavity is equipped with a control circuit board, and the control circuit board is equipped with a heat sink. The heat sink is located inside the fan mounting slot, and the fan mounting slot is equipped with mounting holes corresponding to the heat sink.

[0019] The air intake end of the fan mounting slot is located on its vertically downward side, and the air inlet is located on the bottom of the main body corresponding to the vertically downward side of the fan mounting slot. The cooling fan is located on the upper side of the air inlet, and the heat sink is vertically or horizontally located between the cooling fan and the heating component.

[0020] Alternatively, the air inlets are distributed circumferentially along the side wall of the main body, and the radiator is vertically installed between the cooling fan and the heating component; or, the radiator is horizontally installed between the cooling fan and the air inlet end of the fan mounting slot.

[0021] Alternatively, the cooling fan and the heat sink can be positioned opposite each other on the left and right sides of the fan mounting slot.

[0022] The upper side of the main body is provided with an upwardly extending water-blocking edge, which surrounds the outer side of the air outlet end of the fan mounting slot in a circumferential direction.

[0023] The inner radial side of the water-blocking enclosure is provided with a flow-guiding slope, which is inclined from bottom to top toward the air outlet side.

[0024] The main body is provided with a drainage channel at the position between the air outlet and the water-blocking edge. The water outlet of the drainage channel extends downward to the bottom of the main body and connects with the outside.

[0025] The beneficial effects of this utility model are: This method can improve the weighing accuracy of the weight sensor by cooling it down, and it can also make better use of the horizontal space inside the electrical cavity, thereby reducing the vertical space occupied by the weighing furnace as a whole. Attached Figure Description

[0026] Figure 1 This is an assembly cross-sectional view of the first embodiment of the present invention.

[0027] Figure 2 Deconstruction of the first embodiment of this utility model Figure 1 .

[0028] Figure 3 Deconstruction of the first embodiment of this utility model Figure 2 .

[0029] Figure 4 This is a cross-sectional view of point A in the first embodiment of this utility model.

[0030] Figure 5 This is an assembly cross-sectional view of the second embodiment of the present invention.

[0031] Figure 6 This is an exploded view of the second embodiment of the present invention.

[0032] Figure 7 This is an assembly cross-sectional view of the third embodiment of the present invention.

[0033] Figure 8 This is an exploded view of the third embodiment of the present invention.

[0034] Figure 9 This is an assembly cross-sectional view of the fourth embodiment of the present invention.

[0035] Figure 10 This is an exploded view of the fourth embodiment of the present invention.

[0036] Figure 11 This is an assembly cross-sectional view of the fifth embodiment of this utility model.

[0037] Figure 12 This is an exploded view of the fifth embodiment of the present invention.

[0038] Figure 13 This is an assembly cross-sectional view of the sixth embodiment of this utility model.

[0039] Figure 14 This is an exploded view of the sixth embodiment of the present invention.

[0040] Figure 15 This is an assembly cross-sectional view of the seventh embodiment of the present invention.

[0041] Figure 16 This is an assembly cross-sectional view of the eighth embodiment of this utility model.

[0042] Figure 17 This is an assembly cross-sectional view of the ninth embodiment of this utility model.

[0043] Figure 18 This is an assembly cross-sectional view of the tenth embodiment of the present utility model.

[0044] Figure 19 This is an assembly cross-sectional view of the eleventh embodiment of the present invention.

[0045] Figure 20 This is an exploded view of the twelfth embodiment of the present invention. Detailed Implementation

[0046] First embodiment: like Figures 1-4 As shown, this electric furnace includes: The main body 1 has an electrical cavity 11 on its inner side, and an air inlet 12 communicating with the outside is provided on the side wall of the main body 1 at the position corresponding to the electrical cavity 11.

[0047] A heating component is located above the main body 1, and an air outlet 13 is formed between the heating component and the main body 1.

[0048] There is a fan mounting slot 14 between the air inlet 12 and the air outlet 13. The fan mounting slot 14 is arranged vertically and a cooling fan 4 is installed and connected to the fan mounting slot 14. A cooling air duct is formed between the air inlet 12 and the air outlet 13 through the cooling fan 4, which passes through the air inlet 12, the electrical cavity 11, the fan mounting slot 14, the heating component and the air outlet 13 in sequence.

[0049] The weight sensor 7 is located inside the electrical cavity 11, corresponding to the outer side of the fan mounting slot 14. The vertical projection of the weight sensor 7 and the cooling fan 4 are offset from each other. The weight sensor 7 is used to measure the weight change of the object placed on the heating assembly. The weight sensor 7 is a conventional weighing component in the art, and its specific structure and working principle can be understood by those skilled in the art.

[0050] By placing the weight sensor 7 on the outside of the fan mounting slot 14 inside the electrical cavity 11, the cooling fan 4 can be used to cool the weight sensor 7, improving its weighing accuracy. This also makes better use of the horizontal space inside the electrical cavity 11, relatively reducing the vertical space occupied by the weighing furnace. Furthermore, it improves the heat dissipation of core components such as circuit boards, making the equipment more durable.

[0051] Preferably, the heating component in this embodiment is an induction cooker, which can heat the metal container placed on it by electromagnetic heating.

[0052] Furthermore, the heating assembly includes a panel 21 and a heating plate 22. An upper bracket 31 is fixedly connected to the lower side of the panel 21. The upper bracket 31 is in the shape of a ring and is located on the outer side of the heating plate 22. A lower bracket 32 ​​is fixedly connected to the lower side of the upper bracket 31 by a locking member. The lower bracket 32 ​​abuts against the lower side of the heating plate 22. The lower bracket 32 ​​exerts an upward pushing force on the heating plate 22, causing the upper side of the heating plate 22 to press against the lower side of the panel 21. The panel 21 and the heating plate 22 do not need to be fixed by additional glue application, which simplifies the assembly structure of the panel 21 and the heating plate 22.

[0053] Preferably, in this embodiment, the heating plate 22 is a heating plate and the panel 21 is a heat-conducting plate. The working principle of both is the same as that of a conventional electric ceramic stove, which can be understood by those skilled in the art.

[0054] Furthermore, the upper bracket 31 is provided with a pressure transmission element for applying a downward force to the weight sensor 7. The pressure transmission element extends downward through the main body 1 into the electrical cavity 11 and is connected and cooperated with the weight sensor 7, so that the weight change data on the heating component can be accurately transmitted to the weight sensor 7.

[0055] Furthermore, the pressure transmission component includes a weighing plate 34 and several circumferentially distributed support connecting columns 33. The upper end of the support connecting column 33 is integrally formed with the upper support 31, and the lower end of the support connecting column 33 extends downward through the main body 1 and enters the electrical cavity 11. The weighing plate 34 is connected and fixed to the lower end of the support connecting column 33 and the weight sensor 7 respectively, so that the weight change of the heating component at different circumferential positions can be more easily reflected on the weighing plate 34, thereby further improving the weighing accuracy.

[0056] Furthermore, the weight sensor 7 is a single strain gauge sensor, which has a fixed end and a weighing end. The fixed end of the strain gauge sensor is connected and fixed to the main body 1 through a first fixing mechanism, and the weighing end of the strain gauge sensor is connected and fixed to the pressure transmission component.

[0057] Furthermore, the first fixing mechanism includes a fixing plate 5 and a first connecting post 51. The fixing plate 5 is connected and fixed to the fixing end of the strain gauge sensor. One end of the first connecting post 51 is connected and fixed to the fixing plate 5, and the other end of the first connecting post 51 is connected and fixed to the upper side of the corresponding electrical cavity 11 inside the main body 1, or the other end of the first connecting post 51 is integrally formed with the upper side of the corresponding electrical cavity 11 inside the main body 1.

[0058] Furthermore, the upper side of the main body 1 is provided with an upwardly extending water-blocking edge 17, which surrounds the outside of the air outlet of the fan mounting groove 14 in a circumferential direction. The water-blocking edge 17 can reduce the chance of external liquid entering the interior of the main body 1.

[0059] Furthermore, a guide slope 171 is provided on the radial inner side of the water-blocking edge 17. The guide slope 171 is inclined from bottom to top toward the side of the air outlet 13, and the airflow can be better diffused in the space between the heating component and the air outlet 13 through the guide slope 171.

[0060] Second embodiment: See Figure 5 , Figure 6 The difference between this embodiment and the first embodiment is that the other end of the first connecting column 51 of the weighing furnace is connected and fixed to the lower side of the corresponding electrical cavity 11 in the main body 1, or the other end of the first connecting column 51 is integrally formed with the lower side of the corresponding electrical cavity (11) in the main body 1.

[0061] In this embodiment, the airflow enters the electrical cavity 11 from the air inlet 12 on the outer periphery of the bottom of the main body 1, then enters the fan mounting slot 14 through the cooling fan 4, then passes through the heating plate 22, and finally is discharged outward from the air outlet 13.

[0062] The remaining undescribed parts are the same as in the first embodiment and will not be repeated here.

[0063] Third embodiment: See Figure 7 , Figure 8 The difference between this embodiment and the first embodiment is that the first fixing mechanism of this weighing furnace is a supporting boss 15 set on the lower side of the electrical cavity 11 inside the main body 1. The supporting boss 15 is integrally formed with the main body 1, and the supporting boss 15 is connected and fixed to the fixing end of the strain gauge sensor.

[0064] In this embodiment, the airflow enters the electrical cavity 11 from the air inlet 12 on the outer periphery of the bottom of the main body 1, then enters the fan mounting slot 14 through the cooling fan 4, then passes through the heating plate 22, and finally is discharged outward from the air outlet 13.

[0065] The remaining undescribed parts are the same as in the first embodiment and will not be repeated here.

[0066] Fourth embodiment: See Figure 9 , Figure 10 The difference between this embodiment and the first embodiment is that the weight sensor 7 of this weighing furnace is a plurality of strain gauge sensors, each with a fixed end and a weighing end. The center of the fan mounting slot 14 coincides with the center of the heating component. Different strain gauge sensors are evenly distributed around the outside of the fan mounting slot 14. Different strain gauge sensors can measure the weight change at different positions of the heating component with higher accuracy. After calculation by a preset algorithm, the weight sensor 7 as a whole can obtain a higher accuracy weight change value. In this embodiment, the number of strain gauge sensors is two.

[0067] Furthermore, the weighing end of each strain gauge sensor is connected and fixed to the pressure transmission component, and the fixed end of each strain gauge sensor is connected to one end of the second connecting post 52. The other end of the second connecting post 52 is connected and fixed to the upper side of the corresponding electrical cavity 11 inside the main body 1, or the other end of the second connecting post 52 is integrally formed with the upper side of the corresponding electrical cavity 11 inside the main body 1.

[0068] Furthermore, a drainage channel 18 is provided on the main body 1 at the position between the air outlet 13 and the water-blocking edge 17. The water outlet of the drainage channel 18 extends downward to the bottom of the main body 1 and connects with the outside, so that the residual liquid can be discharged outward better and avoids accumulation inside the product.

[0069] In this embodiment, the airflow enters the electrical cavity 11 from the air inlet 12 at the bottom of the main body 1, then passes through the cooling fan 4 into the fan mounting slot 14, then passes through the heating plate 22, and finally is discharged outward from the air outlet 13.

[0070] The remaining undescribed parts are the same as in the first embodiment and will not be repeated here.

[0071] Fifth embodiment: See Figure 11 , Figure 12 The difference between this embodiment and the fourth embodiment is that the other end of the second connecting column 52 of the weighing furnace is connected and fixed to the lower side of the corresponding electrical cavity 11 in the main body 1, or the other end of the second connecting column 52 is integrally formed with the lower side of the corresponding electrical cavity 11 in the main body 1.

[0072] In this embodiment, the airflow enters the electrical cavity 11 from the air inlet 12 at the bottom of the main body 1, then passes through the cooling fan 4 into the fan mounting slot 14, then passes through the heating plate 22, and finally is discharged outward from the air outlet 13.

[0073] The remaining undescribed parts are the same as in the fourth embodiment, and will not be repeated here.

[0074] Sixth embodiment: See Figure 13 , Figure 14 The difference between this embodiment and the fifth embodiment is that the number of strain gauge sensors in this weighing furnace is two or more, and the specific number can be determined according to actual production needs. In this embodiment, the number of strain gauge sensors is four.

[0075] In this embodiment, the airflow enters the electrical cavity 11 from the air inlet 12 around the bottom of the main body 1, then passes through the cooling fan 4 into the fan mounting slot 14, then passes through the heating plate 22, and finally is discharged outward from the air outlet 13.

[0076] The remaining undescribed parts are the same as in the fifth embodiment, and will not be repeated here.

[0077] Seventh embodiment: See Figure 15 The difference between this embodiment and the first embodiment is that: the electrical cavity 11 of this weighing furnace is provided with a control circuit board 6, and a heat sink 8 is provided on the control circuit board 6. The heat sink 8 is located inside the fan mounting slot 14, and the fan mounting slot 14 is provided with mounting holes 141 corresponding to the heat sink 8. The heat sink 8 can improve the heat dissipation effect on the control circuit board 6 and extend its service life.

[0078] Furthermore, the air inlet of the fan mounting slot 14 is located on its vertically downward side, the air inlet 12 is located on the bottom of the main body 1 corresponding to the vertically downward side of the fan mounting slot 14, the cooling fan 4 is located on the upper side of the air inlet 12, and the heat sink 8 is vertically located between the cooling fan 4 and the heating component.

[0079] In this embodiment, the airflow enters the electrical cavity 11 from the air inlet 12 at the bottom of the main body 1, then passes through the cooling fan 4 into the fan mounting slot 14, then passes through the heating plate 22, and finally is discharged outward from the air outlet 13.

[0080] The remaining undescribed parts are the same as in the first embodiment and will not be repeated here.

[0081] Eighth embodiment: See Figure 16 The difference between this embodiment and the seventh embodiment is that the radiator 8 of this weighing furnace is horizontally arranged between the cooling fan 4 and the heating component.

[0082] Preferably, the cooling fan 4 is located outside the air inlet end of the fan mounting slot 14.

[0083] In this embodiment, the airflow enters the electrical cavity 11 from the air inlet 12 at the bottom of the main body 1, then passes through the cooling fan 4 into the fan mounting slot 14, then passes through the heating plate 22, and finally is discharged outward from the air outlet 13.

[0084] The remaining undescribed parts are the same as in the seventh embodiment, and will not be repeated here.

[0085] Ninth embodiment: See Figure 17 The difference between this embodiment and the eighth embodiment is that the air inlet 12 of this weighing furnace is distributed circumferentially along the side wall of the main body 1, and the radiator 8 is vertically arranged between the cooling fan 4 and the heating component.

[0086] In this embodiment, the airflow enters the electrical cavity 11 from the air inlet 12 around the bottom of the main body 1, then passes through the cooling fan 4 into the fan mounting slot 14, then passes through the heating plate 22, and finally is discharged outward from the air outlet 13.

[0087] The remaining undescribed parts are the same as in the eighth embodiment, and will not be repeated here.

[0088] Tenth embodiment: See Figure 18 The difference between this embodiment and the ninth embodiment is that the radiator 8 of this weighing furnace is horizontally arranged between the cooling fan 4 and the air inlet end of the fan mounting slot 14.

[0089] In this embodiment, the airflow enters the electrical cavity 11 from the air inlet 12 around the bottom of the main body 1, then passes through the cooling fan 4 into the fan mounting slot 14, then passes through the heating plate 22, and finally is discharged outward from the air outlet 13.

[0090] The remaining undescribed parts are the same as in the ninth embodiment, and will not be repeated here.

[0091] Eleventh Example: See Figure 19 The difference between this embodiment and the tenth embodiment is that the cooling fan 4 and the radiator 8 of this weighing electric furnace are respectively arranged on the left and right sides of the fan mounting slot 14.

[0092] In this embodiment, the airflow enters the electrical cavity 11 from the air inlet 12 around the bottom of the main body 1, then passes through the cooling fan 4 into the fan mounting slot 14, then passes through the heating plate 22, and finally is discharged outward from the air outlet 13.

[0093] The remaining undescribed parts are the same as in the tenth embodiment, and will not be repeated here.

[0094] Twelfth Example: See Figure 20 The difference between this embodiment and the tenth embodiment is that the heating plate 22 of this weighing furnace is an electromagnetic coil plate, and its working principle is the same as that of a conventional induction furnace, which can be understood by those skilled in the art.

[0095] The remaining undescribed parts are the same as in the first embodiment and will not be repeated here.

Claims

1. A weighing electric furnace, characterized in that, include: The main body (1) has an electrical cavity (11) on its inner side, and the side wall of the main body (1) is provided with an air inlet (12) that communicates with the outside world at the position corresponding to the electrical cavity (11). A heating component is located above the main body (1), and an air outlet (13) is formed between the heating component and the main body (1). There is a fan mounting slot (14) between the air inlet (12) and the air outlet (13). The fan mounting slot (14) is arranged vertically and a cooling fan (4) is installed and connected to the fan mounting slot (14). A cooling air duct is formed between the air inlet (12) and the air outlet (13) through the cooling fan (4), which passes through the air inlet (12), the electrical cavity (11), the fan mounting slot (14), the heating component and the air outlet (13) in sequence. The weight sensor (7) is located inside the electrical cavity (11) on the outside of the fan mounting slot (14), and the vertical projection of the weight sensor (7) and the cooling fan (4) are offset from each other.

2. The weighing furnace according to claim 1, characterized in that: The heating assembly includes a panel (21) and a heating plate (22). An upper bracket (31) is fixedly connected to the lower side of the panel (21). The upper bracket (31) is in the shape of a ring and is located on the outer side of the heating plate (22). A lower bracket (32) is fixedly connected to the lower side of the upper bracket (31) by a locking member. The lower bracket (32) abuts against the lower side of the heating plate (22). The lower bracket (32) generates an upward pushing force on the heating plate (22) so that the upper side of the heating plate (22) presses against the lower side of the panel (21).

3. The weighing furnace according to claim 2, characterized in that: The upper bracket (31) is provided with a pressure transmission element for applying a downward force to the weight sensor (7). The pressure transmission element extends downward through the main body (1) into the electrical cavity (11) and is connected and cooperated with the weight sensor (7).

4. The weighing furnace according to claim 3, characterized in that: The pressure transmission component includes a weighing plate (34) and several circumferentially distributed support connecting columns (33). The upper end of the support connecting column (33) is integrally formed with the upper support (31), and the lower end of the support connecting column (33) extends downward through the main body (1) and enters the electrical cavity (11). The weighing plate (34) is connected and fixed to the lower end of the support connecting column (33) and the weight sensor (7) respectively.

5. The weighing furnace according to claim 3, characterized in that: The weight sensor (7) is a single strain sensor. The strain sensor has a fixed end and a weighing end. The fixed end of the strain sensor is connected and fixed to the main body (1) through a first fixing mechanism. The weighing end of the strain sensor is connected and fixed to the pressure transmission component. The first fixing mechanism includes a fixing plate (5) and a first connecting column (51). The fixing plate (5) is fixedly connected to the fixing end of the strain sensor. One end of the first connecting column (51) is fixedly connected to the fixing plate (5), and the other end of the first connecting column (51) is fixedly connected to the upper side of the corresponding electrical cavity (11) in the main body (1) or the other end of the first connecting column (51) is integrally formed with the upper side of the corresponding electrical cavity (11) in the main body (1); or, the other end of the first connecting column (51) is fixedly connected to the lower side of the corresponding electrical cavity (11) in the main body (1) or the other end of the first connecting column (51) is integrally formed with the lower side of the corresponding electrical cavity (11) in the main body (1). Alternatively, the first fixing mechanism is a supporting boss (15) set on the lower side of the electrical cavity (11) inside the main body (1). The supporting boss (15) is integrally formed with the main body (1) and is connected and fixed to the fixing end of the strain sensor.

6. The weighing furnace according to claim 3, characterized in that: The weight sensor (7) consists of multiple strain gauge sensors, each with a fixed end and a weighing end. The center of the fan mounting slot (14) coincides with the center of the heating assembly. Different strain gauge sensors are evenly distributed around the outside of the fan mounting slot (14). The number of strain gauge sensors is two or more. The weighing end of each strain gauge sensor is connected and fixed to the pressure transmission component. The fixed end of each strain gauge sensor is connected to one end of a second connecting post (52). The other end of the second connecting post (52) is connected and fixed to the upper side of the corresponding electrical cavity (11) in the main body (1) or the other end of the second connecting post (52) is integrally formed with the upper side of the corresponding electrical cavity (11) in the main body (1); or, the other end of the second connecting post (52) is connected and fixed to the lower side of the corresponding electrical cavity (11) in the main body (1) or the other end of the second connecting post (52) is integrally formed with the lower side of the corresponding electrical cavity (11) in the main body (1).

7. The weighing furnace according to claim 1, characterized in that: The electrical cavity (11) is provided with a control circuit board (6), and the control circuit board (6) is provided with a heat sink (8). The heat sink (8) is located inside the fan mounting slot (14), and the fan mounting slot (14) is provided with mounting holes (141) corresponding to the heat sink (8). The air inlet of the fan mounting slot (14) is opened on its vertically downward side, the air inlet (12) is opened on the bottom of the main body (1) corresponding to the vertically downward side of the fan mounting slot (14), the cooling fan (4) is set on the upper side of the air inlet (12), and the radiator (8) is vertically or horizontally set between the cooling fan (4) and the heating component. Alternatively, the air inlet (12) is distributed circumferentially along the side wall of the main body (1), and the radiator (8) is vertically arranged between the cooling fan (4) and the heating component; or, the radiator (8) is horizontally arranged between the cooling fan (4) and the air inlet end of the fan mounting slot (14). Alternatively, the cooling fan (4) and the heat sink (8) are respectively positioned on the left and right sides of the fan mounting slot (14).

8. The weighing furnace according to any one of claims 1-7, characterized in that: The upper side of the main body (1) is provided with an upwardly extending water-blocking edge (17), which is circumferentially arranged around the outside of the air outlet of the fan mounting groove (14).

9. The weighing furnace according to claim 8, characterized in that: The inner radial side of the water-blocking rim (17) is provided with a flow-guiding slope (171), which is inclined from bottom to top toward the air outlet (13).

10. The weighing furnace according to claim 8, characterized in that: The main body (1) is provided with a drainage channel (18) at the position between the air outlet (13) and the water-blocking edge (17). The water outlet of the drainage channel (18) extends downward to the bottom of the main body (1) and communicates with the outside.

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