An electric hot plate energy efficiency testing device

Abstract

The application discloses a kind of electric range energy efficiency testing device, comprising: a standard pot made of all metal, the standard pot is placed on electric range, the standard pot is injected with constant temperature water of quantitative, the top of the standard pot is fixedly connected with sealing cover;A heat preservation cover, the heat preservation cover is fixedly connected on the top surface of electric range to form airtight space, the standard pot is placed in airtight space;A heat preservation gas storage tank, the heat preservation gas storage tank is communicated with heat preservation cover by heat preservation pipeline;A power meter is used to detect the power of electric range during use;A constant temperature constant current gas generating system, the constant temperature constant current gas generating system is connected with heat preservation cover to inject constant temperature airflow into heat preservation cover at constant flow rate and then enter heat preservation gas storage tank;The application can improve the detection accuracy of electric range energy efficiency.

Description

Technical Field

[0001] This invention relates to the field of electrical performance testing, specifically to an energy efficiency testing device for electric stoves. Background Technology

[0002] Household induction cooktops utilize the principle of electromagnetic induction, causing eddy currents to be generated in the cookware (magnetic core) within an alternating magnetic field. This generates heat, converting electrical energy into heat. Since the cookware itself heats up, it reduces intermediate heat transfer steps, resulting in higher thermal efficiency than other cooktops. The energy efficiency standard is the most critical parameter for household induction cooktops.

[0003] In existing technologies, energy efficiency is measured using instruments and measuring tools such as power meters, platinum resistance thermometers, timers, and electronic scales. The thermal efficiency of the induction cooker is calculated by measuring the heat obtained from the water in a standard pot heated by the induction cooker, the heating power of the induction cooker, and the standby power with the highest power consumption. However, this testing method has the drawback that the container holding the water and the dissipated heat cannot be statistically measured, resulting in inaccurate measurement results. Summary of the Invention

[0004] The purpose of this invention is to provide an energy efficiency testing device for electric stoves, so as to improve the accuracy of energy efficiency testing for electric stoves.

[0005] To achieve the above objectives, the technical solution of the present invention is as follows:

[0006] An energy efficiency testing device for electric stoves, comprising:

[0007] A standard pot made entirely of metal is placed on an electric stove. The standard pot is filled with a fixed amount of water at a constant temperature, and a sealing lid is fixedly connected to the top of the standard pot.

[0008] A heat preservation cover is fixedly connected to the top surface of the electric stove to form a sealed space, and the standard pot is placed in the sealed space;

[0009] An insulated gas storage box, wherein the insulated gas storage box is connected to an insulation cover via an insulation pipe;

[0010] A power meter used to detect the power consumption of an electric stove during use;

[0011] A constant temperature and constant flow gas generating system, wherein the constant temperature and constant flow gas generating system is connected to a heat insulation cover to inject a constant temperature gas flow into the heat insulation cover and then into a heat insulation storage tank.

[0012] Several temperature sensors are provided, with at least one temperature sensor inside the standard pot, at least one temperature sensor fixed on the outer periphery of the standard pot, and several temperature sensors fixedly connected inside the insulation cover.

[0013] Furthermore, the temperature sensor located inside the standard pot does not make contact with the inner wall of the standard pot or the bottom surface of the sealing lid.

[0014] Furthermore, the sealing cap is made of the same material as the standard pot, and at least one temperature sensor is fixedly connected to the upper surface of the sealing cap.

[0015] Furthermore, a number of connecting rods are fixedly connected inside the standard pot. One end of each connecting rod is fixedly connected to the inner wall of the standard pot or the bottom surface of the sealing lid, and the temperature sensor is fixedly connected to the other end of the connecting rod.

[0016] Furthermore, the constant temperature and constant flow gas generating system includes a gas source box, a connecting pipe, and a gas pump. The gas source box is connected to the inside of the heat insulation cover through the connecting pipe, and the gas pump is fixedly connected to the connecting pipe.

[0017] Furthermore, the constant temperature and constant flow gas generating system also includes a gas flow meter and a first gas check valve, wherein the gas flow meter and the first gas check valve are fixedly connected to the connecting pipe between the gas pump and the heat insulation cover.

[0018] Furthermore, a second gas check valve is fixedly connected to the insulation pipe between the insulation cover and the insulation gas storage box.

[0019] In addition to the above technologies, the following are also included:

[0020] Multiple communication modules are electrically connected to a temperature sensor and a flow meter respectively to collect data information from the multiple sensors and the flow meter.

[0021] A controller connected to a communication module to receive temperature and gas flow information transmitted by the communication module in order to calculate the energy efficiency of the tested electric stove.

[0022] Compared with the prior art, the advantages and positive effects of this invention are:

[0023] This invention uses a heat preservation cover, a constant temperature gas storage box, and a sealed standard pot to statistically analyze the heat energy generated by the induction cooker. It can accurately measure the total heat generated by the induction cooker during operation, as well as separately count the energy used for heating and dissipation, thus obtaining more accurate measurement results and improving the accuracy of energy efficiency testing for electric cookers. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is the electrical schematic diagram of the present invention;

[0026] Figure 2 This is a simplified structural diagram of the present invention. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0029] like Figures 1-2 As shown,

[0030] An energy efficiency testing device for electric stoves, comprising:

[0031] A standard pot 2 made entirely of metal is placed on an electric stove 1. A fixed amount of constant-temperature water is injected into the standard pot 2, and a sealing lid 3 is fixedly connected to the top of the standard pot 2.

[0032] A heat preservation cover 4 is fixedly connected to the top surface of the electric stove 1 to form a sealed space, and the standard pot 2 is placed in the sealed space.

[0033] An insulated gas storage box 7 is connected to an insulation cover 4 via an insulation pipe 8;

[0034] A power meter used to detect the power consumption of an electric stove during use;

[0035] A constant temperature and constant flow gas generating system is connected to a thermal insulation cover 4 to inject a constant temperature gas flow into the thermal insulation cover 4 and then into the thermal insulation gas storage box 7.

[0036] A plurality of temperature sensors 6 are provided, with at least one temperature sensor 6 inside the standard pot 2 and at least one temperature sensor 6 fixed on the outer periphery of the standard pot 2. A plurality of temperature sensors 6 are fixedly connected inside the heat preservation cover 4.

[0037] In this embodiment, the temperature sensor 6 located inside the standard pot 2 does not contact the inner wall of the standard pot 2 or the bottom surface of the sealing cover 3.

[0038] In this embodiment, the sealing cover 3 is made of the same material as the standard pot 2, and at least one temperature sensor 6 is fixedly connected to the upper surface of the sealing cover 3.

[0039] In this embodiment, a plurality of connecting rods 5 are fixedly connected inside the standard pot 2. One end of the connecting rod 5 is fixedly connected to the inner wall of the standard pot 2, the bottom surface of the sealing cover 3, or the inner side wall of the heat preservation cover 4. The temperature sensor 6 is fixedly connected to the other end of the connecting rod 5.

[0040] In this embodiment, the constant temperature and constant flow gas generating system includes a gas source box 9, a connecting pipe 10, and a gas pump 11. The gas source box 9 is connected to the inside of the heat insulation cover 4 through the connecting pipe 10. The gas pump 11 is fixedly connected to the connecting pipe 10. The gas in the gas source box 9 is the same as the gas in the heat insulation cover 4 and has the same temperature.

[0041] In this embodiment, the constant temperature and constant flow gas generating system further includes a gas flow meter 12 and a first gas check valve 13. The gas flow meter 12 and the first gas check valve 13 are fixedly connected to the connecting pipe between the gas pump 11 and the heat insulation cover 4.

[0042] In this embodiment, a second gas check valve is fixedly connected to the insulation pipe 8 between the insulation cover 4 and the insulation gas storage box 7.

[0043] In addition to the above-mentioned technologies, this embodiment also includes:

[0044] Multiple communication modules are electrically connected to a temperature sensor and a flow meter respectively to collect data information from the multiple sensors and the flow meter.

[0045] A controller connected to a communication module to receive temperature and gas flow information transmitted by the communication module in order to calculate the energy efficiency of the tested electric stove.

[0046] In this embodiment, several transmission modules are also included to transmit various measurement signals to the controller.

[0047] In this embodiment, the heat insulation cover, heat insulation pipe and other heat insulation shell structures are all made of heat insulation material.

[0048] In using this invention, a certain amount of water is first poured into a standard pot, and a sealed lid is placed on top. The water temperature, the surface temperature of the standard pot, the surface temperature of the sealed lid, and the gas temperature inside the insulation cover are measured. Then, the induction cooker is turned on to heat the water to a certain temperature (e.g., one degree). When the water temperature inside the standard pot rises to a certain temperature, the surface temperature of the standard pot, the surface temperature of the sealed lid, the gas temperature inside the insulation cover, and the gas temperature inside the insulation gas storage box are read. According to the formula: Power * Time = Specific Heat Capacity * Mass * Temperature Difference, the power converted to water, gas, and the standard pot is calculated respectively, and the energy efficiency of the electric cooker is then measured.

[0049] During the above process, the power meter detects the power of the electric stove during use, and the gas source box can simultaneously inject constant temperature gas into the heat preservation cover to prevent the equipment from overheating and being damaged. When calculating, only the power of the gas injected into the heat preservation cover and the gas flowing into the heat preservation gas storage box needs to be added.

[0050] Based on the embodiments of the present invention, any modifications, equivalent substitutions, improvements, etc., made by all other embodiments obtained by those skilled in the art without creative effort should be included within the protection scope of the present invention.

Claims

1. An energy efficiency testing device for electric stoves, characterized in that, include: A standard pot made entirely of metal is placed on an electric stove. The standard pot is filled with a fixed amount of water at a constant temperature, and a sealing lid is fixedly connected to the top of the standard pot. A heat preservation cover is fixedly connected to the top surface of the electric stove to form a sealed space, and the standard pot is placed in the sealed space; An insulated gas storage box, wherein the insulated gas storage box is connected to an insulation cover via an insulation pipe; A power meter used to detect the power consumption of an electric stove during use; A constant temperature and constant flow gas generating system, wherein the constant temperature and constant flow gas generating system is connected to an insulation cover to inject a constant temperature gas with a known initial temperature into the insulation cover at a constant flow rate and then into an insulation gas storage box. Several temperature sensors are provided, with at least one temperature sensor inside the standard pot, at least one temperature sensor fixed on the outer periphery of the standard pot, and several temperature sensors fixedly connected inside the heat preservation cover. After heat exchange with the standard pot and the electric stove, the gas inside the heat insulation cover flows into the heat insulation gas storage box. The controller is configured to: calculate the heat carried away by the airflow based on the flow rate of the constant temperature airflow, the temperature when it is injected into the heat insulation cover, and the temperature when it flows from the heat insulation cover into the heat insulation storage tank, and calculate the thermal efficiency of the electric stove by combining the heat rise of the water in the standard pot.

2. The energy efficiency testing device for electric stoves according to claim 1, characterized in that: The temperature sensor located inside the standard pot does not make contact with the inner wall of the standard pot or the bottom surface of the sealing lid.

3. The energy efficiency testing device for electric stoves according to claim 1, characterized in that: The sealing cap is made of the same material as the standard pot, and at least one temperature sensor is fixedly connected to the upper surface of the sealing cap.

4. The energy efficiency testing device for electric stoves according to claim 2, characterized in that: Several connecting rods are fixedly connected inside the standard pot. One end of each connecting rod is fixedly connected to the inner wall of the standard pot or the bottom surface of the sealing lid, and the temperature sensor is fixedly connected to the other end of the connecting rod.

5. The energy efficiency testing device for electric stoves according to claim 1, characterized in that: The constant temperature and constant flow gas generating system includes a gas source box, a connecting pipe, and a gas pump. The gas source box is connected to the inside of the heat insulation cover through the connecting pipe, and the gas pump is fixedly connected to the connecting pipe.

6. The energy efficiency testing device for electric stoves according to claim 5, characterized in that: The constant temperature and constant flow gas generating system also includes a gas flow meter and a first gas check valve, which are fixedly connected to the connecting pipe between the gas pump and the heat insulation cover.

7. The energy efficiency testing device for electric stoves according to claim 1, characterized in that: A second gas check valve is fixedly connected to the insulation pipe between the insulation cover and the insulation gas storage box.

8. The energy efficiency testing device for electric stoves according to claim 1, characterized in that, Also includes: Multiple communication modules are electrically connected to a temperature sensor and a flow meter to collect data from the multiple sensors and the flow meter, respectively.

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