Electromagnetic generation device and microwave equipment

Abstract

The invention provides an electromagnetic generation device and microwave equipment. The electromagnetic generation device comprises an anode piece, a tuning assembly and a cathode piece, the tuning assembly comprises a regulation and control part, and the regulation and control part is configured to generate a coupling effect with the anode piece so as to form a coupling capacitor between the regulation and control part and the anode piece, so that the electromagnetic wave frequency of the electromagnetic generation device is regulated; the cathode pieces and the anode pieces are arranged at intervals. The electromagnetic generation device provided by the invention can reduce the electromagnetic wave frequency.

Description

Technical Field

[0001] The present application relates to the technical field of microwave devices, and in particular to an electromagnetic generating device and a microwave equipment. Background Art

[0002] An electromagnetic generator is a device or component that can generate electromagnetic waves and is the main component of a microwave device. Existing microwave devices, such as microwave ovens, are used as heating devices. In order to improve the uniformity of heating and thawing food, microwave ovens need to output microwave energy of different frequencies. However, the minimum electromagnetic wave frequency of the electromagnetic generator of an existing microwave oven is high, resulting in a narrow electromagnetic wave frequency range, which cannot meet the demand for a larger working bandwidth of the microwave oven. Summary of the invention

[0003] The present application provides an electromagnetic generating device and a microwave device to solve the technical problem that the minimum value of the electromagnetic wave frequency of the existing electromagnetic generating device is too high.

[0004] In order to solve the above technical problems, the present application provides an electromagnetic generating device, which includes an anode component, a tuning component and a cathode component. The tuning component includes a regulating part, and the regulating part is configured to couple with the anode component to form a coupling capacitor between the regulating part and the anode component, thereby adjusting the electromagnetic wave frequency of the electromagnetic generating device; the cathode component and the anode component are arranged at intervals.

[0005] In one embodiment, the anode member includes an annular anode member, which surrounds a cathode cavity and a resonant cavity connected to the cathode cavity, and the cathode member is arranged in the cathode cavity; the regulating part is arranged in the resonant cavity, and the cavity wall of the resonant cavity is spaced apart from the cathode member, wherein the regulating part is arranged along the circumference of the anode member.

[0006] In one embodiment, the resonant cavity includes a plurality of sub-resonant cavities spaced apart along the circumferential direction, a cavity wall between adjacent sub-resonant cavities is provided with a mounting groove, and the regulating portion is provided in the mounting groove.

[0007] In one embodiment, the anode member comprises an annular anode member, the anode member is provided with two end surfaces spaced apart in the axial direction, and the regulating portion is provided on the end surfaces.

[0008] In one embodiment, a projection of the regulating portion along the axial direction toward the end surface is located inside the end surface.

[0009] In one embodiment, the regulating portion includes a plurality of sub-regulating portions spaced apart from each other along the circumference of the anode member.

[0010] In one embodiment, the tuning component further includes a control cavity and molten metal, and the control cavity is configured to contain the molten metal to form a control portion.

[0011] In one embodiment, the tuning component further includes a piping component and a pumping component, wherein the piping component is connected to the regulating chamber; the pumping component is connected to the piping component and is configured to output or collect molten metal to the regulating chamber to adjust the capacity of the molten metal in the regulating chamber.

[0012] In order to solve the above technical problems, the present application provides a microwave device, which includes the above electromagnetic generating device.

[0013] In one embodiment, the microwave device further comprises a control circuit, which is electrically connected to the pumping component of the tuning component and is configured to generate control parameters of the pumping component to adjust the conveying period or speed of the molten metal.

[0014] The beneficial effects of the present application are as follows: the electromagnetic generating device of the present application includes an anode component, a tuning component and a cathode component, the tuning component includes a regulating part, the regulating part is configured to couple with the anode component to form a coupling capacitor between the regulating part and the anode component, thereby adjusting the electromagnetic wave frequency of the electromagnetic generating device; the cathode component and the anode component are arranged at intervals. That is, on the basis of the resonant capacitance of the anode component, the present application also adds a coupling capacitance between the regulating part and the anode component, which can increase the resonant capacitance of the electromagnetic generating device, thereby reducing the electromagnetic wave frequency of the electromagnetic generating device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0016] Figure 1 It is a structural schematic diagram of the first embodiment of the setting method of the control unit provided by the present application;

[0017] Figure 2 It is a structural schematic diagram of a second embodiment of the setting method of the control unit provided by the present application;

[0018] Figure 3 yes Figure 2 A schematic diagram of the top view of the structure of the embodiment;

[0019] Figure 4 It is a structural schematic diagram of an embodiment of a control unit provided in the present application. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0021] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0022] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0023] An electromagnetic generator is a device or component that can generate electromagnetic waves, and an electromagnetic generator is an important component of a microwave device. The minimum value of the electromagnetic wave frequency of an existing electromagnetic generator is too high, resulting in a narrow frequency range of the electromagnetic wave of the electromagnetic generator, which cannot meet the needs of microwave devices equipped with electromagnetic generators for different electromagnetic wave frequencies. For example, when a microwave device is used as a heating device, such as a microwave oven, in order to improve the uniformity of heating and thawing food, the microwave oven needs to output microwave energy of different frequencies, and the working frequency bandwidth must be greater than 20MHz. Since the electromagnetic wave frequency of the electromagnetic generator of an existing microwave oven is in the range of 2440-2460MHz, it cannot meet the needs of a larger working bandwidth of the microwave oven.

[0024] In order to solve the above technical problems, the present application provides a microwave device (not shown in the figure), which includes an electromagnetic generating device. Figures 1 to 4 , Figure 1 It is a structural schematic diagram of the first embodiment of the setting method of the control unit provided by the present application; Figure 2 It is a structural schematic diagram of a second embodiment of the setting method of the control unit provided by the present application; Figure 3 yes Figure 2 A schematic diagram of the top view of the structure of the embodiment; Figure 4The electromagnetic generating device 10 comprises an anode member 110, a tuning assembly 120 and a cathode member (not marked in the figure).

[0025] The anode member 110 is surrounded to form a cathode cavity 112 and a resonant cavity 111 connected to the cathode cavity 112. The cathode member is disposed in the cathode cavity 112 and is spaced apart from the anode member 110, that is, the cathode member is spaced apart from the inner wall of the anode member 110. The tuning component 120 includes a regulating portion 121, which is configured to couple with the anode member 110 to form a coupling capacitor between the regulating portion 121 and the anode member 110, thereby adjusting the resonant capacitance of the resonant cavity 111, and further adjusting the electromagnetic wave frequency of the electromagnetic generating device 10.

[0026] The electromagnetic generating device 10 of the present application includes an anode component 110, a tuning component 120 and a cathode component, wherein the tuning component 120 includes a regulating portion 121, and the regulating portion 121 is configured to couple with the anode component 110, so that a coupling capacitor is formed between the regulating portion 121 and the anode component 110, that is, the present application adds a coupling capacitor between the regulating portion 121 and the anode component 110 on the basis of the resonant capacitance of the anode component 110, so that the overall resonant capacitance of the anode component 110 can be increased, thereby reducing the electromagnetic wave frequency of the electromagnetic generating device 10, and further widening the bandwidth of the electromagnetic wave frequency of the electromagnetic generating device 10.

[0027] In one embodiment, the anode member 110 includes an annular anode member, the regulating portion 121 is disposed in the resonant cavity 111, and the cavity wall of the resonant cavity 111 is spaced apart from the cathode member, wherein the regulating portion 121 is disposed along the circumferential direction Y of the anode member 110. It can be understood that the regulating portion 121 is disposed in the resonant cavity 111 and along the circumferential direction Y of the anode member 110, and a coupling capacitor can be formed between the regulating portion 121 and the inner wall of the anode member 110, so that the resonant capacitance of the electromagnetic generating device 10 is increased, thereby reducing the electromagnetic wave frequency of the electromagnetic generating device 10.

[0028] In one embodiment, in order to ensure that an effective coupling capacitor is formed between the regulating portion 121 and the anode member 110, the projection of the regulating portion 121 along the radial direction Z of the anode member 110 falls on the inner wall of the anode member 110, so that an effective coupling capacitor can be formed between the inner wall of the anode member 110 and the regulating portion 121, thereby increasing the resonant capacitance of the electromagnetic generating device 10 and further reducing the electromagnetic wave frequency of the electromagnetic generating device 10.

[0029] In one embodiment, in order to ensure that an effective coupling capacitor is formed between the regulating portion 121 and the anode member 110 , the dimension of the regulating portion 121 along the axial direction X of the anode member 110 is greater than the dimension along the radial direction Z of the anode member 110 .

[0030] In one embodiment, to ensure that an effective coupling capacitor is formed between the regulating portion 121 and the anode member 110 , the dimension of the regulating portion 121 along the axial direction X of the anode member 110 is greater than or equal to half of the dimension of the anode member 110 along the axial direction X thereof.

[0031] In one embodiment, in order to ensure that an effective coupling capacitor is formed between the regulating portion 121 and the anode member 110 , the regulating portion 121 is arranged parallel to the axial direction X of the anode member 110 .

[0032] In one embodiment, the regulating portion 121 includes a plurality of sub-regulating portions 121 a spaced apart around the circumference Y of the annular anode member.

[0033] In one embodiment, the resonant cavity 111 includes a plurality of sub-resonant cavities spaced apart along the circumferential direction Y of the anode member 110, and a cavity wall 113 between adjacent sub-resonant cavities is provided with a mounting groove 114, and the regulating portion 121 is provided in the mounting groove 114. It can be known that the regulating portion 121 is provided in the mounting groove 114, and the wall surface (not marked in the figure) of the mounting groove 114 can also form a coupling capacitor with the regulating portion 121, which can further increase the coupling capacitance between the regulating portion 121 and the anode member 110, and further reduce the electromagnetic wave frequency of the electromagnetic generating device 10.

[0034] For example, along the axial direction X of the anode member 110 , the regulating portion 121 is disposed at the upper portion, the middle portion, the lower portion, etc. of the anode member 110 , which is not limited here.

[0035] In one embodiment, the anode member 110 includes an annular anode member, and the anode member 110 is provided with two end faces (not marked in the figure) at intervals along the axial direction X, and the regulating portion 121 is provided on the end faces. The regulating portion 121 can be provided on any end face, or the regulating portion 121 can be provided on the two end faces. Specifically, the regulating portion 121 and the end face are provided at intervals along the axial direction X of the anode member 110, so that a coupling capacitor is formed between the regulating portion 121 and the end face of the anode member 110, thereby increasing the resonant capacitance of the anode member 110, and further reducing the electromagnetic wave frequency of the electromagnetic generating device 10.

[0036] In one embodiment, the projection of the regulating portion 121 toward the end surface along the axial direction X is located inside the end surface. It can be understood that the cathode cavity 112 and the resonant cavity 111 penetrate the two end surfaces of the anode member 110 along the axial direction X of the anode member 110, so that the size of the end surface of the anode member 110 is smaller than the size of the anode member 110 along its radial direction Z. The projection of the regulating portion 121 toward the end surface along the axial direction X is located inside the end surface, so that a coupling capacitor can be formed between the regulating portion 121 and the end surface, and at the same time, the size of the regulating portion 121 along the radial direction Z of the anode member 110 can be reduced, thereby reducing the cost and the weight of the electromagnetic generating device 10.

[0037] For example, the regulating portion 121 is a ring-shaped regulating portion 121 , and the projection of the regulating portion 121 toward the anode member 110 along the axial direction X of the anode member 110 only falls on the end surface.

[0038] In one embodiment, the cavity wall between adjacent sub-resonance cavities includes two wall surfaces spaced apart along the axial direction X of the anode member 110, and the projection of the regulating portion 121 along the axial direction X toward the end face is located on the wall surface, so as to further reduce the size of the regulating portion 121 along the radial direction Z of the anode member 110, thereby reducing the cost and weight of the electromagnetic generating device 10.

[0039] In one embodiment, the regulating portion 121 includes a plurality of sub-regulating portions 121a spaced apart along the circumferential direction Y of the anode member 110. Specifically, along the circumferential direction Y of the anode member 110, the intervals between adjacent sub-regulating portions 121a are set in the resonant cavity 111; along the axial direction X of the anode member 110, the projection of the sub-regulating portion 121a toward the end face is located on the wall surface. In this embodiment, by providing a plurality of sub-regulating portions 121a spaced apart along the circumferential direction Y of the anode member 110, it is ensured that coupling capacitance can be formed between the sub-regulating portion 121a and the wall surface, and at the same time, the size of the regulating portion 121 along the radial direction Z of the anode member 110 can be further reduced, thereby reducing the cost and the weight of the electromagnetic generating device 10.

[0040] In one embodiment, the tuning component 120 further includes a molten metal (not labeled in the figure) and a control cavity (not labeled in the figure). The control cavity is configured to contain the molten metal to form a control portion 121. The position of the control cavity is set corresponding to the position of the control portion 121. For example, when the control portion 121 is installed in the mounting groove 114, the control cavity is installed in the mounting groove 114; when the control portion 121 is provided on the end surface of the anode member 110, the control cavity is located on the end surface of the anode member 110. The material of the control cavity is a material with high temperature stability, and will not react with the molten metal when the electromagnetic generating device 10 is working.

[0041] The tuning assembly 120 of this embodiment further includes a metal liquid and a control cavity, wherein the metal liquid is disposed in the control cavity, and the control cavity is used to contain the metal liquid and to space the metal liquid from the anode member 110, so that a coupling capacitor can be formed between the metal liquid and the anode member 110, thereby reducing the electromagnetic wave frequency of the electromagnetic generating device 10. In addition, the control cavity can also be used to set metal liquids of different capacities, so that the size of the coupling capacitor between the metal liquid and the anode member 110 is changed, thereby playing a role in adjusting the electromagnetic wave frequency of the electromagnetic generating device 10.

[0042] In one embodiment, the control chamber includes a plurality of sub-control chambers (not marked in the figure), each of which is configured to contain molten metal to form a plurality of sub-control parts 121a. The plurality of sub-control chambers may be an integrated design, that is, the control chamber includes a plurality of isolated chambers; or the plurality of sub-control chambers may be a split design, that is, the plurality of sub-control chambers are isolated from each other, which is not limited here.

[0043] In one embodiment, the volumes of the molten metal in different sub-regulating chambers may be the same or different, which is not limited here. The molten metal may be one or more molten metals, which is not limited here.

[0044] In one embodiment, the tuning component 120 further includes a pipe component 122 and a pumping component 123. The pipe component 122 is connected to the control chamber and the pumping component 123 respectively, that is, the pipe component 122 serves as a medium for the metal liquid to enter and exit the control chamber. The pumping component 123 is connected to the pipe component 122 and is configured to output or collect the metal liquid to the control chamber. That is, the pumping component 123 provides power for the metal liquid to enter and exit the control chamber, so the capacity of the metal liquid in the control chamber can be adjusted, that is, the resonant capacitance of the electromagnetic generating device 10 can be dynamically adjusted, so as to achieve the adjustable frequency of the electromagnetic wave of the electromagnetic generating device 10. For example, when the capacity of the metal liquid in the control chamber is 0, the electromagnetic wave frequency of the electromagnetic generating device 10 is f1; when the capacity of the metal liquid in the control chamber is V1, the electromagnetic wave frequency of the electromagnetic generating device 10 is f2; when the capacity of the metal liquid in the control chamber is V2, the electromagnetic wave frequency of the electromagnetic generating device 10 is f3; wherein, V1 and V2 are the heights of the control chamber along the axial direction X of the anode member 110.

[0045] The electromagnetic generator 10 of this embodiment can dynamically adjust the capacity of the molten metal by setting the pipeline component 122 and the pumping component 123, that is, adjust the coupling capacitance between the molten metal wall and the anode component 110, so that the electromagnetic wave frequency of the electromagnetic generator 10 is adjustable. In addition, compared with the existing mechanical adjustment method, such as using a rotating device to rotate the rotating blades to change the electromagnetic wave frequency of the electromagnetic generator 10, since the electromagnetic generator 10 is in a high temperature state when working, the metal structure expands thermally and lubrication is difficult, and the rotating device is easily worn, causing the working state to fail. In this embodiment, the pumping component 123 is used as a method to adjust the electromagnetic wave frequency of the electromagnetic generator 10, and the heating of the electromagnetic generator 10 has little effect on the pumping component 123. Therefore, the electromagnetic generator 10 of the present application has strong working stability and can extend the service life.

[0046] In one embodiment, the electromagnetic generating device 10 further includes a housing 130, wherein the anode member 110, the cathode member and the regulating chamber are arranged in the housing 130, and the pumping assembly 123 is arranged outside the housing 130. The housing 130 performs vacuum sealing on the resonant cavity 111 and the cathode cavity 112 to ensure the normal operation of the electromagnetic generating device 10, and the pumping assembly 123 is arranged outside the housing 130 to ensure that the pumping assembly 123 can operate normally and is not affected by the internal environment of the housing 130, thereby ensuring the working stability of the electromagnetic generating device 10.

[0047] In one embodiment, the pipe assembly 122 includes a quartz pipe. A quartz pipe refers to a pipe made of quartz material. The quartz pipe has the characteristics of high temperature and high pressure resistance. When the electromagnetic generating device 10 is in a high temperature state, the pipe assembly 122 includes a quartz pipe, which can improve the stability of the electromagnetic generating device 10. It is worth noting that a shielding layer (not marked in the figure) is provided on the surface of the pipe body in the pipe assembly 122 located outside the shell 130, and the shielding layer can prevent microwave energy from leaking. For example, the shielding layer can be a metal coating, which is not limited here.

[0048] In one embodiment, the anode element 110 and the housing 130 are integrally formed.

[0049] In one embodiment, the control chamber is a quartz control chamber.

[0050] In one embodiment, the pumping component 123 includes a hydraulic pump, which is a conventional hydraulic pump, and can reduce the hardware development cycle of the pumping component 123 .

[0051] In one embodiment, the electromagnetic generating device 10 further includes a control circuit (not shown), which is electrically connected to the pumping assembly 123 and configured to generate control parameters of the pumping assembly 123 to adjust the delivery cycle or speed of the molten metal. In other embodiments, the control circuit may also be a control circuit of a microwave device, which is not limited here.

[0052] In one embodiment, the microwave device may be an electromagnetic heating device. For example, the microwave heating device may be a microwave oven, a microwave steaming oven, a microwave fryer, a microwave rice steaming oven, a microwave heating stove, or other microwave heating device, which is not limited here. The microwave device may also be a radar system, etc., which is not limited here.

[0053] The above are only implementation methods of the present application, and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. An electromagnetic generating device, characterized in that: include: Anode parts; A tuning component, comprising a regulating part, wherein the regulating part is configured to couple with the anode member to form a coupling capacitor between the regulating part and the anode member, thereby adjusting the electromagnetic wave frequency of the electromagnetic generating device; The cathode member is spaced apart from the anode member.

2. The electromagnetic generating device according to claim 1, characterized in that: The anode member comprises a ring-shaped anode member, the anode member is arranged to form a cathode cavity and a resonance cavity connected to the cathode cavity, and the cathode member is arranged in the cathode cavity; The regulating part is arranged in the resonant cavity, and the cavity wall of the resonant cavity is spaced apart from the cathode component, wherein the regulating part is arranged along the circumferential direction of the anode component.

3. The electromagnetic generating device according to claim 2, characterized in that: The resonant cavity comprises a plurality of sub-resonant cavities spaced apart along the circumferential direction, a cavity wall between adjacent sub-resonant cavities is provided with a mounting groove, and the regulating part is arranged in the mounting groove.

4. The electromagnetic generating device according to claim 1, characterized in that: The anode member comprises an annular anode member, the anode member is provided with two end surfaces spaced apart in the axial direction, and the regulating portion is provided on the end surfaces.

5. The electromagnetic generating device according to claim 4, characterized in that: A projection of the regulating portion along the axial direction toward the end surface is located inside the end surface.

6. The electromagnetic generating device according to claim 4, characterized in that: The regulating portion includes a plurality of sub-regulating portions spaced apart from each other along the circumferential direction of the anode member.

7. The electromagnetic generating device according to any one of claims 1 to 6, characterized in that: The tuning assembly further comprises: Liquid metal; The regulating chamber is configured to contain the molten metal to form the regulating portion.

8. The electromagnetic generating device according to claim 7, characterized in that: The tuning assembly further comprises: A pipeline assembly, connected to the regulating chamber; A pumping assembly is communicated with the pipeline assembly and is configured to output or collect the molten metal to the regulating chamber to adjust the capacity of the molten metal in the regulating chamber.

9. A microwave device, characterized in that: include: The electromagnetic generating device according to any one of claims 1 to 8.

10. The microwave device according to claim 9, characterized in that: The microwave device also includes: The control circuit is electrically connected to the pumping component of the tuning component and is configured to generate control parameters of the pumping component to adjust the conveying period or speed of the molten metal.

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