CN110742518A - Frequency conversion type electric oven - Google Patents
Frequency conversion type electric oven Download PDFInfo
- Publication number
- CN110742518A CN110742518A CN201911163618.9A CN201911163618A CN110742518A CN 110742518 A CN110742518 A CN 110742518A CN 201911163618 A CN201911163618 A CN 201911163618A CN 110742518 A CN110742518 A CN 110742518A
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- CN
- China
- Prior art keywords
- frequency
- alternating current
- power supply
- current power
- electric oven
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J37/00—Baking; Roasting; Grilling; Frying
- A47J37/06—Roasters; Grills; Sandwich grills
- A47J37/0623—Small-size cooking ovens, i.e. defining an at least partially closed cooking cavity
- A47J37/0629—Small-size cooking ovens, i.e. defining an at least partially closed cooking cavity with electric heating elements
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- General Preparation And Processing Of Foods (AREA)
Abstract
The invention provides a variable-frequency electric oven which comprises a box body, wherein two electrode needles are oppositely arranged in an inner cavity of the box body, and the tips of the two electrode needles are fixed at two ends of a food body during working; the two electrode needles are electrically connected with two output ends of a high-frequency alternating current power supply arranged in the box body; the high-frequency alternating current power supply is provided with a frequency modulation module to adjust the alternating current output frequency of the high-frequency alternating current power supply. When the electric oven is used for baking food, the energy consumption is low, and the speed is high.
Description
Technical Field
The present invention relates to a cooking apparatus, and more particularly, to an electric oven.
Background
The oven can bake food, such as roast ducks and the like, and in the manufacturing process of the oven, as a baking space with larger volume needs to be provided, the heat dissipation is more, and the energy consumption is larger; in addition, when the conventional oven cooks food, the heat conduction effect of the food body is completely relied on to gradually conduct the external heat to the interior of the food, so that the whole cooking process is very slow.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide an inverter type electric oven, which not only consumes less energy but also is faster in baking food.
The technical scheme adopted by the invention for realizing the technical purpose is as follows: the frequency conversion type electric oven comprises an oven body, wherein two electrode needles are oppositely arranged in an inner cavity of the oven body, and the tips of the two electrode needles are fixed at the two ends of a food body when working; the two electrode needles are electrically connected with two output ends of a high-frequency alternating current power supply arranged in the box body; the high-frequency alternating current power supply is provided with a frequency modulation module to adjust the alternating current output frequency of the high-frequency alternating current power supply.
Preferably, the frequency modulation module is a frequency converter arranged in the box body, and the frequency converter comprises an output frequency adjusting switch arranged outside the box body.
Preferably, the frequency modulation module comprises a frequency converter and a control module coupled with the frequency converter, the control module comprises an electronic ammeter for measuring the output current of the high-frequency alternating current power supply, and the control module reduces the alternating current output frequency of the high-frequency alternating current power supply by one level when the output current of the high-frequency alternating current power supply is smaller than a set threshold value. Further, the step of reducing the ac output frequency of the high-frequency ac power supply by one level is to reduce the ac output frequency to 80% of the current frequency.
Preferably, among the two electrode needles, the electrode needle positioned above the electrode needle comprises a pointed cone and a bendable electric connecting rod connected with the pointed cone, so that the electrode needle is electrically connected with a food body placed in the inner cavity of the box body.
The invention has the beneficial effects that: when the variable-frequency electric oven is used, a food body is fixed between two electrode needles, and high-frequency alternating current is conducted, at the moment, due to the skin effect of the alternating current, the high-frequency current mainly passes through the surface of the food, so that the skin of the food is firstly baked to become crisp, and the moisture in the food is locked not to be lost, the conductivity of the meat at the outer layer is gradually reduced after the meat is baked, and the alternating current output frequency is gradually reduced through regulation, so that the path of the alternating current flowing through the food is gradually changed from outside to inside, and the baking process from outside to inside is formed on the food; because the output current of the variable-frequency electric oven is directly used for heating the meat inside the food, the energy consumption is less and the baking speed is higher.
Drawings
Fig. 1 is a schematic view of an embodiment of the variable frequency electric oven.
Detailed Description
The invention is further illustrated with reference to the following figures and examples:
in the embodiment shown in fig. 1, the variable frequency electric oven comprises an oven body 1, wherein two electrode needles 2 are oppositely arranged in the inner cavity of the oven body 1, and the tips of the two electrode needles 2 are fixed at two ends of a food body during operation; the two electrode needles 2 are electrically connected with two output ends of a high-frequency alternating current power supply 3 arranged in the box body 1; the high-frequency alternating current power supply 3 is provided with a frequency modulation module to adjust the alternating current output frequency of the high-frequency alternating current power supply 3.
In addition, the frequency modulation module is a frequency converter arranged in the box body 1, and the frequency converter comprises an output frequency adjusting switch 10 arranged outside the box body 1.
In addition, of the two electrode needles 2, the electrode needle 2 located above includes a pointed cone 21 and a bendable electrical connection rod 22 connected to the pointed cone 21, so as to electrically connect the food body placed in the inner cavity of the box body 1.
When the variable-frequency electric oven is used, a food body is fixed between the two electrode needles 2, and high-frequency alternating current is conducted, at the moment, due to the skin effect of the alternating current, the high-frequency current mainly passes through the surface of the food, so that the skin of the food is firstly baked to be crisp, and the moisture in the food is locked not to be lost, the conductivity of the meat at the outer layer is gradually reduced after the meat is baked, and the alternating current output frequency is gradually reduced through regulation, so that the path of the alternating current flowing through the food is gradually changed from outside to inside, and the baking process from outside to inside is formed on the food; because the output current of the variable-frequency electric oven is directly used for heating the meat inside the food, the energy consumption is less and the baking speed is higher.
In addition to the above embodiments, instead of the adjustment switch 10 described above, an automatic adjustment mechanism may be employed. Specifically, the frequency modulation module comprises a frequency converter and a control module coupled with the frequency converter, the control module comprises an electronic ammeter for measuring the output current of the high-frequency alternating-current power supply 3, and the control module reduces the alternating-current output frequency of the high-frequency alternating-current power supply 3 by one level when the output current of the high-frequency alternating-current power supply 3 is smaller than a set threshold, for example, reduces the alternating-current output frequency to 80% of the current frequency.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (5)
1. The utility model provides a frequency conversion formula electric oven, includes box (1), its characterized in that: the box body (1) is internally and oppositely provided with two electrode needles (2) in the cavity, and the tips of the two electrode needles (2) are fixed at the two ends of the food body when working; the two electrode needles (2) are electrically connected with two output ends of a high-frequency alternating current power supply (3) arranged in the box body (1); the high-frequency alternating current power supply (3) is provided with a frequency modulation module to adjust the alternating current output frequency of the high-frequency alternating current power supply (3).
2. The variable frequency electric oven of claim 1, wherein: the frequency modulation module is a frequency converter arranged in the box body (1), and the frequency converter comprises an output frequency adjusting switch (10) arranged outside the box body (1).
3. The variable frequency electric oven of claim 1, wherein: the frequency modulation module comprises a frequency converter and a control module coupled with the frequency converter, the control module comprises an electronic ammeter used for measuring the output current of the high-frequency alternating current power supply (3), and the control module reduces the alternating current output frequency of the high-frequency alternating current power supply (3) by one grade when the output current of the high-frequency alternating current power supply (3) is smaller than a set threshold value.
4. The variable frequency electric oven of claim 3, wherein: and the step of reducing the alternating current output frequency of the high-frequency alternating current power supply (3) by one grade is to reduce the alternating current output frequency to 80% of the current frequency.
5. The variable frequency electric oven of claim 1, wherein: among the two electrode needles (2), the electrode needle (2) positioned above comprises a pointed cone (21) and a bendable electric connection rod (22) connected with the pointed cone (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911163618.9A CN110742518A (en) | 2019-11-25 | 2019-11-25 | Frequency conversion type electric oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911163618.9A CN110742518A (en) | 2019-11-25 | 2019-11-25 | Frequency conversion type electric oven |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110742518A true CN110742518A (en) | 2020-02-04 |
Family
ID=69284370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911163618.9A Withdrawn CN110742518A (en) | 2019-11-25 | 2019-11-25 | Frequency conversion type electric oven |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110742518A (en) |
-
2019
- 2019-11-25 CN CN201911163618.9A patent/CN110742518A/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200204 |