TWM612432U - Oven with constant temperature heating function - Google Patents

Abstract

An oven with constant temperature heating function, comprising a furnace body, a grilling net, a heating module, a heating adjustment unit, a temperature sensor, and a controller. The heating adjustment unit is connected to the heating module. The temperature sensor is arranged in the furnace body and detects an actual temperature value. The controller includes a constant temperature control module. The constant temperature control module is electrically connected to the temperature sensor and the heating adjustment unit. The constant temperature control module Group compares the difference between a target temperature value and the actual temperature value, and controls the heating adjustment unit to adjust the output heat of the heating module according to the difference, so as to increase or decrease the output heat of the heating module, and let The actual temperature at the location of the temperature sensor is maintained at the target temperature.

Description

Oven with constant temperature heating function

The present invention relates to an oven, in particular to an oven with constant temperature heating function.

Existing ovens mainly include a furnace body, a heating source, and a grilling net. The heating source is arranged in the furnace body. The heating source can be charcoal fire, or an open flame or electric heat generated by a heating device. The net is erected on the furnace body and located above the heating source, and the heating source can be used to bake the ingredients placed on the grilling net.

However, since the actual temperature of the grilling net position will be affected by the heat of the heating source, heating time, the distance between the heating source and the grilling net, and other external environmental factors, even if heating is used The heating source generated by the device, and the output heat of the heating source is maintained, the actual temperature of the grilling net position may also be changed, and it is easy to cause under-baking or over-baking, which cannot provide a constant temperature heating effect .

In view of this, the main purpose of the present invention is to provide an oven with constant temperature heating function, which can keep the temperature of the grilling net position at the target temperature.

In order to achieve the above-mentioned purpose, the oven with constant temperature heating function of the present invention includes: A furnace body A grilling net, the grilling net is erected on the furnace body; A heating module set in the furnace body; A heating adjustment unit connected to the heating module; A temperature sensor, which is arranged in the furnace body and detects an actual temperature value; and A controller, the controller includes a thermostat control module, the thermostat control module is electrically connected to the temperature sensor and the heating adjustment unit, the thermostat control module compares the difference between a set temperature value and the actual temperature value Value, the thermostatic control module controls the heating adjustment unit to adjust the output heat of the heating module according to the difference.

Further, the temperature sensor is fixed to the grilling net.

Further, the heating module includes a fuel supply unit and a burner, the fuel supply unit is connected to the burner by a pipeline, and the heating adjustment unit is a flow controller and is connected to the fuel supply unit and the burner In the meantime, the heating adjustment unit adjusts the fuel flow rate output from the fuel supply unit to the combustor.

Further, the heating adjustment unit includes a valve body and a stepping motor, the valve body is connected to the pipeline between the fuel supply unit and the burner, and the stepping motor is connected to the valve body and connected to the controller. The thermostatic control module is electrically connected, and the thermostatic control module controls the stepping motor to adjust the fuel flow out of the valve body according to the difference.

Further, the pipeline between the fuel supply unit of the heating module and the burner is provided with a manual valve.

Further, a lifting device is provided in the furnace body, and the grilling net is fixed to the lifting device, and is driven by the lifting device to move up and down relative to the heating module.

Further, the lifting device includes a lifting assembly and a lifting drive motor, the grilling net is fixed to the lifting assembly, and the lifting drive motor is connected to the lifting assembly and electrically connected to the controller.

Further, the lifting drive motor is electrically connected to the thermostatic control module of the controller, and the thermostatic control module controls the lifting drive motor according to the difference to adjust the relative distance between the grilling net and the heating module.

Further, the controller can be installed on the furnace body in a pull-out manner.

The oven with constant temperature heating function of the present invention can use a constant temperature control module to control the heating adjustment unit to adjust the heating module according to the actual temperature measured by the temperature sensor, thereby increasing or reducing the output of the heating module Heat, so that the actual temperature of the position where the temperature sensor is installed in the grill is maintained at the target temperature.

1 to 6, a preferred embodiment of the oven with constant temperature heating function of the present invention includes an oven body 10, a grill 20, a heating module 30, a heating adjustment unit 35, and a temperature The sensor 40, and a controller 50.

The grilling net 20 is erected on the furnace body 10, the heating module 30 is arranged in the furnace body 10 and located below the grilling net 20, the heating module 30 can be a fuel heater or an electric heater, but can An open flame or electric heating is used to heat the food placed on the grilling net 20, and the heating adjustment unit 35 is connected to the heating module 30 and adjusts the output heat of the heating module 30.

Please refer to Figure 1, Figure 5, Figure 6, and Figure 10, in this preferred embodiment, the heating module 30 is a fuel heating module, such as a gas heater, the heating module 30 includes a fuel supply unit 31 and a combustor 33, the fuel supply unit 31 and the combustor 33 are connected by a pipeline 32, the heating adjustment unit 35 is a flow controller, and is connected between the fuel supply unit 31 and the combustor 33 The pipeline 32 can adjust the fuel flow output from the fuel supply unit 31 to the burner 33, thereby increasing or decreasing the output heat of the heating module 30. The heating adjustment unit 35 mainly includes a valve body 351 and a stepping motor 353. The valve body 351 is connected to the pipeline 32 between the fuel supply unit 31 and the combustor 33, and the stepping motor 353 is connected to the valve body 351, and the stepping motor 353 can be used to drive the valve. The adjusting member in the body 351 adjusts the fuel flow out of the valve body 351; further, the pipeline 32 between the fuel supply unit 31 and the burner 33 is provided with a manual valve 34. When the heating adjustment unit 35 fails, Or when it cannot be used due to power failure, the manual valve 34 can be used to manually open the pipeline 32 to allow fuel to flow to the combustor 33 through the manual valve 34.

Please refer to FIGS. 3, 4, and 8, the temperature sensor 40 is arranged in the furnace body 10 and detects an actual temperature value. Preferably, the temperature sensor 40 is fixed to the grilling net 20; the The controller 50 includes a thermostat control module 55 which is electrically connected to the temperature sensor 40 and the heating adjustment unit 35. The thermostat control module 55 compares a target temperature value with the actual temperature value. According to the difference value, the thermostat control module 55 controls the heating adjustment unit 35 to adjust the output heat of the heating module 30 according to the difference value. Preferably, the controller 50 can be installed on the furnace body 10 in a retractable manner. When it needs to be used, the controller 50 is pulled out of the furnace body 10, and when it is not needed, the controller 50 is pushed into the furnace body 10.

Please refer to FIGS. 8-12. When using, the user sets a target temperature value in the controller 50, and the thermostatic control module 55 reads the target temperature value and the actual temperature value detected by the temperature sensor 40. And it is judged whether the difference between the target temperature value and the actual temperature value (the target temperature value minus the actual temperature value is equal to the difference value) is greater than or equal to a first threshold value, where the first threshold value is a positive number, which can be greater than 0 and less than or equal to 3. If the constant temperature control module 55 determines that the difference between the target temperature value and the actual temperature value is greater than or equal to a first threshold, the constant temperature control module 55 sends a heating control signal to the heating adjustment unit 35, And control the heating adjustment unit 35 to increase the output heat of the heating module 30, if not, the constant temperature control module 55 determines whether the difference between the target temperature value and the actual temperature value is less than the first threshold and greater than or equal to 0 If the thermostat control module 55 determines that the difference between the target temperature value and the actual temperature value is less than the first threshold and greater than or equal to 0, the thermostat control module 55 does not send a heating control signal to the heating adjustment unit 35, The heating adjustment unit 35 is not activated. If not, the thermostat control module 55 sends a heating control signal to the heating adjustment unit 35 and controls the heating adjustment unit 35 to reduce the output heat of the heating module 30.

In the preferred embodiment of the present invention, the stepping motor 353 of the heating adjustment unit 35 is electrically connected to the thermostatic control module 55 of the controller 50, and the thermostatic control module 55 controls the stepping motor according to the difference. 353 operates to adjust the fuel flow out of the valve body 351. When the difference is greater than or equal to the first threshold, the thermostat control module 55 sends a heating control signal to the stepping motor 353 to control the stepping motor 353 operates to increase the fuel flow out of the valve body 351; when the difference is less than the first threshold and greater than or equal to 0, the thermostat control module 55 does not send a heating control signal to the stepping motor 353, and the stepping motor 353 The motor 353 does not operate; when the difference is less than 0, the thermostatic control module 55 sends a heating control signal to the stepping motor 353, and controls the stepping motor 353 to operate, and reduces the fuel flow out of the valve body 351 The constant temperature control module 55 after a preset time, re-judgment the difference between the target temperature value and the actual temperature value, and control the stepping motor 353 according to the difference value to adjust the flow out of the valve body 351 The fuel flow rate adjusts the output heat of the heating module 30 so that the temperature of the grilling net 20 is maintained at the target temperature value.

Preferably, referring to Figures 2, 6, and 7, the furnace body 10 is provided with a lifting device 15, and the grilling net 20 is fixed to the lifting device 15 and is driven by the lifting device 15 to face each other. The heating module 30 moves up and down, and the lifting device 15 can be used to adjust the distance between the grilling net 20 and the heating module 30 to adjust the temperature at the position of the grilling net 20.

The lifting device 15 can be a manually controlled lifting device or an automatically controlled lifting device. It mainly includes a lifting assembly 150 and a driving member 16. The lifting assembly 150 includes a first lead screw assembly 151 and a support base 155. The support base 155 is connected to the first lead screw assembly 151 to move up and down relative to the first lead screw assembly 151, the grilling net 20 is erected on the support base 155, the driving member 16 and the first lead screw assembly 151 is connected to drive the lead screw of the first lead screw assembly 151 to rotate, thereby driving the support base 155 to move up and down relative to the first lead screw assembly 151. The drive member 16 can be a drive rod, and The user can manually control the lifting device 15, the driving member 16 can also be a lifting drive device, and the lifting device 15 can be controlled by the lifting drive device.

The lifting assembly 150 may further include a second lead screw assembly 156 and a linkage member 154. The second lead screw assembly 156 and the first lead screw assembly 151 are connected to opposite sides of the support base 155. The linkage member 154 The opposite ends of the two are respectively connected to the first lead screw assembly 151 and the second lead screw assembly 156. When the driving member 16 drives the lead screw of the first lead screw assembly 151 to rotate, the linkage member 154 is simultaneously linked, and The lead screw of the second lead screw assembly 156 is driven to rotate, and the linked first lead screw assembly 151 and the second lead screw assembly 156 can be used to drive the support base 155 to move up and down, and to lift the support base 155 to move up and down. The stability.

When the driving member 16 is a lifting driving device, it includes a lifting driving motor 161, the lifting driving motor 161 is connected to the lifting assembly 150, and is electrically connected to the controller 50, and the controller 50 controls the lifting driving motor 161 To drive the grilling net 20 to move up and down relative to the heating module 30, the controller 50 may include a lifting control module 56 which is electrically connected to the lifting driving motor 161, and The elevator control module 56 can be used to control the operation of the elevator driving motor 161.

Preferably, the lifting driving motor 161 is electrically connected to the thermostatic control module 55, and the thermostatic control module 55 controls the lifting driving motor 161 according to the difference between the target temperature value and the actual temperature value to adjust the The distance between the grilling net 20 and the heating module 30.

For example, when the thermostat control module 55 determines that the difference is greater than or equal to a second threshold, where the second threshold is greater than the first threshold, if the second threshold is 30, first determine the support base 155 of the lifting device 15 Whether it is in the lowest position, if not, control the lifting drive motor 161 to drive the support base 155 of the lifting device 15 to descend; when the thermostatic control module 55 determines that the difference is less than or equal to a third threshold, the third threshold If the third threshold is -30, first determine whether the support base 155 of the lifting device 15 is at the highest position. If not, control the lifting drive motor 161 to drive the support base 155 of the lifting device 15 to rise.

Using the above technical features, the oven with constant temperature heating function of the present invention can use the constant temperature control module 55 to compare the difference between a preset temperature value and the actual temperature value detected by the temperature sensor 40 to determine Whether the actual temperature of the position where the temperature sensor 40 is set in the furnace body 10 is too high or too low, and the heating adjustment unit 35 is controlled according to the difference to adjust the output heat of the heating module 30, so that the grilling net The temperature value at position 20 is maintained at a constant temperature; further, a lifting device 15 can be provided in the furnace body 10, and the lifting device 15 can be used to drive the grilling net 20 close to or away from the heating module 30, thereby adjusting the grilling net 20 The temperature of the location.

Please refer to Figure 8, Figure 11 and Figure 12, so the thermostatic control module 55 can be used to automatically adjust the output heat of the heating module 30 and the relative distance between the grilling net 20 and the heating source, when the grilling net 20 position When the actual temperature value of is lower than the target temperature value, the distance between the grilling net 20 and the heating source is reduced, and the heat of the heating source is increased. When the actual temperature value at the position of the grilling net 20 is higher than the target temperature value, The relative distance between the grilling net 20 and the heating source is increased, and the heat of the heating source is reduced.

10: Furnace 15: Lifting device 150: Lifting components 151: The first lead screw assembly 154: Linkage 155: Support seat 156: second lead screw assembly 16: drive parts 161: Lifting drive motor 20: grilled net 30: Heating module 31: Fuel supply unit 32: Pipeline 33: Burner 34: manual valve 35: Heating adjustment unit 351: Valve body 353: stepping motor 40: temperature sensor 50: Controller 55: Thermostat control module 56: Lifting control module

Figure 1 is a perspective view of a preferred embodiment of the new model. Figure 2 is a partially enlarged three-dimensional external view of the preferred embodiment of the new invention with some components omitted. Fig. 3 is an enlarged perspective external view of a partial cross-section with some components omitted in the preferred embodiment of the new invention. Fig. 4 is a partially enlarged three-dimensional external view of the preferred embodiment of the new type, showing that the controller is pulled out from the furnace body. Fig. 5 is a partially enlarged three-dimensional external view of a heating module according to a preferred embodiment of the new invention. Fig. 6 is a partially enlarged front sectional view of the preferred embodiment of the new type. FIG. 7 is a schematic view of the partial enlarged front cross-sectional action of the preferred embodiment of the new type. FIG. 8 is a block diagram of the controller of the preferred embodiment of the new type. Fig. 9 is a judgment flowchart of the thermostat module according to the preferred embodiment of the new type. Fig. 10 is a block diagram of a heating module according to a preferred embodiment of the new invention. 11 and 12 are schematic diagrams of the use of the preferred embodiment of the new type.

10: Furnace

20: grilled net

30: Heating module

50: Controller

Claims (9)

An oven with constant temperature heating function, which includes: A furnace body A grilling net, the grilling net is erected on the furnace body; A heating module set in the furnace body; A heating adjustment unit connected to the heating module; A temperature sensor, which is arranged in the furnace body and detects an actual temperature value; and A controller, the controller includes a thermostat control module, the thermostat control module is electrically connected to the temperature sensor and the heating adjustment unit, the thermostat control module compares the difference between a target temperature value and the actual temperature value Value, the thermostatic control module controls the heating adjustment unit to adjust the output heat of the heating module according to the difference. The oven with constant temperature heating function according to claim 1, wherein the temperature sensor is fixed to the grilling net. The oven with constant temperature heating function according to claim 2, wherein the heating module includes a fuel supply unit and a burner, the fuel supply unit and the burner are connected by a pipeline, and the heating adjustment unit is a flow rate The controller is connected between the fuel supply unit and the combustor, and the heating adjustment unit adjusts the fuel flow rate output from the fuel supply unit to the combustor. The oven with constant temperature heating function according to claim 3, wherein the heating adjustment unit includes a valve body and a stepping motor, and the valve body is connected to the pipeline between the fuel supply unit and the burner. The intake motor is connected to the valve body and electrically connected to the thermostatic control module of the controller. The thermostatic control module controls the operation of the stepping motor according to the difference to adjust the fuel flow out of the valve body. The oven with constant temperature heating function according to claim 4, wherein the pipeline between the fuel supply unit of the heating module and the burner is provided with a manual valve. The oven with constant temperature heating function according to any one of claims 1 to 5, wherein a lifting device is provided in the furnace body, and the grilling net is fixed to the lifting device, and is driven by the lifting device to be opposite to the The heating module moves up and down. The oven with constant temperature heating function according to claim 6, wherein the lifting device includes a lifting assembly and a lifting drive motor, the grilling net is fixed to the lifting assembly, the lifting drive motor is connected to the lifting assembly, and It is electrically connected to the controller. The oven with constant temperature heating function according to claim 7, wherein the lifting drive motor is electrically connected to the constant temperature control module of the controller, and the constant temperature control module controls the lifting drive motor according to the difference to adjust The relative distance between the grilling net and the heating module. The oven with constant temperature heating function according to claim 6, wherein the controller is detachably installed on the oven body.

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