Open type microwave radiation heating test device

Abstract

The utility model provides an open type microwave radiation heating test device, which comprises a microwave heating box body, a microwave leakproof door body and a plurality of microwave sources, the microwave sources are configured to be detachably arranged in a microwave heating cavity, and the positions of the microwave sources are adjustable; the microwave source comprises a shielding cover, a magnetron and a waveguide tube; the magnetron is arranged in the shielding cover, a radiation antenna of the magnetron is inserted into the waveguide tube, and the outlet end of the waveguide tube extends out of the shielding cover. According to the open type microwave radiation heating testing device, the plurality of microwave sources are independent parts and are detachably arranged in the microwave heating cavity of the microwave heating box body, and the positions of the microwave sources are adjustable; when the testing device is used for carrying out microwave radiation heating test on the material, the material can reach the best heating effect as far as possible by adjusting the positions of the microwave sources or changing the set number of the microwave sources, so that the better set positions and number of the microwave sources are determined, and the design of microwave heating equipment corresponding to the material is guided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of microwave heating equipment, and specifically relates to an open type microwave radiation heating test device. BACKGROUND

[0002] At present, in the industrial and scientific research fields, microwave energy is paid more and more attention and recognized for its non-contact medium heating and advantages of high efficiency, energy saving and environmental protection. Microwave heating belongs to medium heating, and the essence is that materials absorb microwave energy to generate temperature in the transmission process of microwave energy. Microwave heating has advantages of rapidity, homogeneity and selectivity, and can realize temperature heating of dozens of degrees to thousands of degrees by changing the power of microwaves.

[0003] At present, the commonly used microwave heating equipment in the industrial and scientific research fields usually comprises a microwave heating box body and a microwave generator. The microwave heating box body comprises a microwave heating cavity, a box shell and a heat preservation layer located between the microwave heating cavity and the box shell. In order to minimize the loss of microwave energy and shield the microwave generator from microwaves, the microwave generator is arranged outside the microwave heating cavity, is located in the heat preservation layer and is fixed in position, that is, is arranged in the box body of the microwave heating box body in a closed (that is, hidden) mode. The microwave generator couples and transmits microwaves into the microwave heating cavity through a waveguide tube (a waveguide hole corresponding to the waveguide tube is formed on the wall of the microwave heating cavity) to heat the materials in the microwave heating cavity by microwaves.

[0004] The placement position of the microwave source relative to the materials greatly influences the effect of microwave heating of the materials. When the microwave heating equipment corresponding to the heated materials is designed, the position of the microwave source is usually set by experience, so that the designed microwave heating equipment cannot achieve the best microwave heating effect on the materials, and the microwave heating equipment needs to be repeatedly changed, which leads to an increase in the initial design cost and a long design period. SUMMARY

[0005] The utility model provides a kind of open type microwave radiation heating test device, can be carried out microwave radiation heating test to material, to obtain the best setting position of microwave source corresponding to the material, it has guiding significance to the initial design of microwave heating equipment, it is favorable to reduce microwave equipment design cost, shorten design period.

[0006] To solve the above technical problems, the utility model adopts the technical scheme of an open type microwave radiation heating test device, comprising:

[0007] Microwave heating box body, the microwave heating box body includes microwave heating cavity and box shell, the top and the circumferential side of the microwave heating cavity are equipped with first detachable connection structure respectively;

[0008] Microwave leakage prevention door body, the microwave leakage prevention door body is equipped on the microwave heating box body, and is used for opening and closing the microwave heating cavity.

[0009] A plurality of microwave sources are detachably arranged in the microwave heating cavity and are position-adjustable; the microwave source comprises a shielding cover, a magnetron and a waveguide; the magnetron is arranged in the shielding cover, the inlet end of the waveguide is located in the shielding cover, the radiation antenna of the magnetron is inserted into the waveguide through the inlet end of the waveguide, and the outlet end of the waveguide extends out of the shielding cover; the shielding cover is provided with a second detachable connecting structure for cooperating with the first detachable connecting structure.

[0010] The microwave source further comprises a heat dissipation assembly for dissipating heat of the magnetron, and the heat sink of the magnetron is located on the heat dissipation airflow flow path of the heat dissipation assembly.

[0011] The heat dissipation assembly comprises a heat dissipation fan and a heat dissipation air duct; the heat dissipation fan is arranged in the shielding cover, the air inlet end of the heat dissipation air duct is located in the shielding cover and is connected to the heat dissipation fan, the air outlet end extends out of the shielding cover, and the shielding cover is provided with a first heat dissipation hole at a position corresponding to the heat dissipation fan.

[0012] The heat dissipation air duct comprises an air inlet section and an air outlet section; one end of the air inlet section is the air inlet end and is fixedly connected to the fan support of the heat dissipation fan, and the other end is fixedly connected to the magnetron; one end of the air outlet section is connected to the magnetron, and the other end is the air outlet end.

[0013] The microwave heating cavity and the box shell are correspondingly provided with a second heat dissipation hole.

[0014] The magnetron and the waveguide are integrally connected as a whole.

[0015] The first detachable connecting structure is a horizontally arranged suspension beam, and the second detachable connecting structure is a hook.

[0016] The box shell is provided with a control panel and a display panel.

[0017] Compared with the prior art, the utility model has the following advantages and positive effects:

[0018] 1. The utility model relates open type microwave radiation heating test device, including microwave heating box and a plurality of microwave sources, a plurality of microwave sources are independent components, detachably located in the microwave heating cavity of microwave heating box and the position is adjustable, compared with the fixed, closed setting structure of microwave source on the microwave heating equipment currently commonly used, realize the activity, open type setting of microwave source, when using the test device to carry out microwave radiation heating test to material, can through the position of microwave source in the microwave heating cavity is adjusted, or through the setting number of microwave source in the microwave heating cavity is changed by disassembling microwave source, make the material reach the best heating effect as far as possible, thereby determine the better setting position and number of microwave source relative to material, to guide the design of the corresponding microwave heating equipment of the material, improve the success rate of the corresponding microwave heating equipment design trial production, be favorable for reducing the design and manufacturing cost of microwave heating equipment, shorten the design period,

[0019] 2, each microwave source includes shield case, magnetron and waveguide, the radiation antenna of magnetron is inserted into the waveguide through the import end of waveguide, and the export end of waveguide is stretched to the outside of shield case, so as to couple and transmit the microwave generated by magnetron into the microwave heating cavity, and carry out radiation heating test to material, the magnetron is arranged in the shield case, and the microwave is shielded by the shield case, to avoid the damage of microwave to magnetron, and ensure the working reliability. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the drawings needed to be used in the embodiment or prior art description will be simply introduced below, and obviously, the drawings in the following description are some embodiments of the utility model, and other drawings can also be obtained by those skilled in the art without creative labor.

[0021] Figure 1 It is the structure schematic diagram of open type microwave radiation heating test device in the embodiment of the utility model,

[0022] Figure 2 It is the A view of Figure 1

[0023] Figure 3 It is the perspective view of microwave source in another view angle in the embodiment of the utility model,

[0024] Figure 4 It is the perspective view of microwave source in another view angle in the embodiment of the utility model,

[0025] Figure 5 It is the structure schematic diagram of microwave source after omitting shield case in the embodiment of the utility model.

[0026] Significant: 1, open type microwave radiation heating test device, ​

[0027] 100, microwave heating box; 110, microwave heating cavity; 120, box shell; 130, control panel; 140, display panel; 150, suspension beam; 160, opening; 170, second heat dissipation hole;

[0028] 200, microwave leakage prevention door; 210, microwave leakage prevention anti-flow groove;

[0029] 300, microwave source; 310, shielding cover; 311, first heat dissipation hole; 320, magnetron; 330, waveguide; 331, inlet end; 332, outlet end; 340, hook; 350, heat dissipation fan; 351, fan support; 360, heat dissipation air duct; 361, air inlet end; 362, air outlet end; 363, air inlet section; 364, air outlet section;

[0030] 400, support table;

[0031] 2, material. DETAILED DESCRIPTION

[0032] In the description of the present application, it should be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0033] In addition, the technical features involved in different embodiments of the present application described below can be combined with each other as long as there is no conflict.

[0034] Reference Figures 1 to 5 In some embodiments of the present application, an open microwave radiation heating test device 1 is provided, which comprises a microwave heating box 100, a microwave leakage prevention door 200 and a plurality of microwave sources 300.

[0035] Among them, the microwave heating box 100 comprises a microwave heating cavity 110 and a box shell 120, of course, also comprises a heat preservation layer arranged between the microwave heating cavity 110 and the box shell 120; the microwave heating cavity 110 is surrounded by a metal plate, and the top and the circumferential side thereof are respectively provided with a first detachable connecting structure.

[0036] The box shell 120 is provided with a control panel 130 and a display panel 140, the control panel 130 has corresponding operation buttons to facilitate operation, and the display panel 140 can display the internal temperature and other process parameters in real time.

[0037] The microwave leakage prevention door body 200 is arranged on the microwave heating box body 100 and is used for opening and closing the microwave heating cavity 110. Figure 1 As shown in the figure, the microwave heating box body 100 has an opening 160 arranged correspondingly to the microwave leakage prevention door body 200, and the microwave leakage prevention door body 200 is hinged on the opening 160 side of the microwave heating box body 100 to open and close the microwave heating cavity 110. A circumferential microwave leakage prevention anti-flow groove 210 is arranged on the contact surface of the microwave leakage prevention door body 200 in contact with the microwave heating box body 100 in the closed door state, so that the microwave heating cavity 110 can be closed after the door body is closed to prevent microwave leakage.

[0038] The microwave source 300 is configured to be detachably arranged in the microwave heating cavity 110 and position-adjustable. The microwave sources 300 are the same in structure, and specifically, as shown in the figure, each microwave source 300 includes a shielding cover 310, a magnetron 320 and a waveguide tube 330. Figures 3 to 5

[0039] The shielding cover 310 is a metal cover body, and microwaves cannot penetrate into the shielding cover 310; the magnetron 320 is arranged in the shielding cover 310, the inlet end 331 of the waveguide tube 330 is located in the shielding cover 310, the radiation antenna of the magnetron 320 is inserted into the waveguide tube 330 through the inlet end 331 of the waveguide tube 330, so that the generated microwaves enter the waveguide tube 330, and the outlet end 332 of the waveguide tube 330 extends to the outside of the shielding cover 310 to couple and transmit the microwaves generated by the magnetron 320 into the microwave heating cavity 110; the shielding cover 310 is provided with a second detachable connection structure for cooperating with the first detachable connection structure, and the microwave source 300 is detachably connected and position-adjusted with the first detachable connection structure on the microwave heating cavity 110 through the cooperation of the second detachable connection structure.

[0040] The open microwave radiation heating test device 1 in the embodiment is provided with multiple microwave sources 300 which are independent components and are arranged in the microwave heating cavity 110 in a detachable manner and are position-adjustable, so that compared with the fixed and closed arrangement structure of the microwave sources 300 on the commonly used microwave heating equipment, the movable and open arrangement of the microwave sources 300 is realized.

[0041] The open microwave radiation heating test device 1 in the embodiment is mainly used for microwave radiation heating test on the material 2 during the initial design of the corresponding microwave heating equipment for the material 2 needing microwave heating, so as to determine the installation position and quantity of the microwave sources 300 in the microwave heating cavity 110, which can make the material 2 achieve better or even optimal microwave heating effect.

[0042] ​Specifically, when the open microwave radiation heating test device 1 is used to test the microwave radiation heating of the material 2 in the microwave heating cavity 110, the position of the microwave source 300 in the microwave heating cavity 110 is adjusted, or the number of microwave sources 300 arranged in the microwave heating cavity 110 is changed by disassembling and assembling the microwave sources 300, so as to achieve the best heating effect of the material 2 as much as possible, thereby determining the better arrangement position and number of the microwave sources 300 relative to the material 2, and guiding the design of the microwave heating equipment corresponding to the material 2, improving the success rate of the design and trial production of the microwave heating equipment, reducing the design and manufacturing cost of the microwave heating equipment, and shortening the design cycle.

[0043] The magnetron 320 of the microwave source 300 is arranged in the shielding cover 310, and the shielding cover 310 shields the microwave, so as to avoid damage to the magnetron 320 by the microwave and ensure the working reliability of the magnetron 320.

[0044] As an embodiment, as shown in Figure 1 , Figure 3 and Figure 5 , the first detachable connection structure is a horizontally arranged suspension beam 150, and the second detachable connection structure is a hook 340. The hook 340 and the outlet end 332 of the waveguide tube 330 are respectively arranged on two opposite sides of the shielding cover 310, and the microwave source 300 is detachably arranged in the microwave heating cavity 110 in a suspended manner.

[0045] For the suspension beam 150 at the top of the microwave heating cavity 110, the suspension beam 150 is arranged in parallel with the plane where the opening 160 of the microwave heating box body 100 is located, so that the suspension beam 150 extends horizontally in the view angle shown in Figure 1 , and when the microwave source 300 is suspended on the suspension beam 150, the outlet end 332 of the waveguide tube 330 faces downward to face the material 2 below. By sliding the microwave source 300 along the extension direction of the suspension beam 150 at the top of the microwave heating cavity 110, the suspension position of the microwave source 300 can be changed, and by increasing or decreasing the number of suspended microwave sources 300, the number of microwave sources 300 in the microwave heating cavity 110 can be changed.

[0046] For the suspension beam 150 on the circumferential side of the microwave heating cavity 110, the height of the suspension beam 150 is approximately flush with the placement height of the material 2, and the suspension beam 150 is arranged perpendicularly to the plane where the opening 160 of the microwave heating box body 100 is located, so that the suspension beam 150 extends horizontally in the view angle shown in Figure 1As shown in the perspective view, the hanging beam 150 extends longitudinally horizontally, when the microwave source 300 is hung on the hanging beam 150, the bottom of the microwave source 300 is supported on the bottom wall of the microwave heating cavity 110 or a support table 400 is arranged on the bottom wall of the microwave heating cavity 110 to support the microwave source 300, so as to ensure that the outlet end 332 of the waveguide tube 330 is horizontally oriented to the material 2 at a position substantially at the same height. By sliding the microwave source 300 along the extension direction of the hanging beam 150, the hanging position of the microwave source 300 can be changed, and by increasing or decreasing the number of the microwave source 300 hung, the number of the microwave source 300 in the microwave heating cavity 110 can be changed.

[0047] Of course, the first detachable connection structure and the second detachable connection structure can also be other convenient detachable connection structures, such as hook 340 structures or matched buckle structures, etc., which are not limited here, and at this time, the first detachable connection structure can be arranged in multiple places to change the position of the microwave source 300.

[0048] Since the magnetron 320 generates heat when working, the temperature in the shielding cover 310 increases, and too high temperature will adversely affect the working reliability of the magnetron 320. In order to solve this problem and further ensure the working reliability of the magnetron 320, in some embodiments of the present application, the microwave source 300 further comprises a heat dissipation assembly for dissipating heat of the magnetron 320, and the heat sink of the magnetron 320 is located on the heat dissipation airflow flow path of the heat dissipation assembly.

[0049] Further, as an embodiment, as shown in the perspective view, Figure 5 The heat dissipation assembly comprises a heat dissipation fan 350 and a heat dissipation air duct 360, the heat dissipation fan 350 is arranged in the shielding cover 310, the air inlet end 361 of the heat dissipation air duct 360 is located in the shielding cover 310 and connected to the heat dissipation fan 350, the air outlet end 362 of the heat dissipation air duct 360 extends to the outside of the shielding cover 310, and the first heat dissipation hole 311 is arranged at the position corresponding to the heat dissipation fan 350 on the shielding cover 310.

[0050] The heat dissipation fan 350 works to drive the air in the microwave heating cavity 110 to flow, enter the heat dissipation air duct 360 through the first heat dissipation hole 311 and the air inlet end 361 of the heat dissipation air duct 360, flow through the heat sink of the magnetron 320 under the guidance of the heat dissipation air duct 360, and cool and dissipate heat of the magnetron 320, the high-temperature airflow after heat dissipation is discharged through the air outlet end 362 of the heat dissipation air duct 360, and the heat dissipation of the magnetron 320 is realized.

[0051] Since the heat dissipation assembly dissipates heat of the magnetron 320, the high-temperature airflow after heat dissipation will be discharged into the microwave heating cavity 110, and the high-temperature airflow after heat dissipation will also have a heating effect on the material 2, which can prevent the high-temperature airflow after heat dissipation from affecting the test of the heating effect of the microwave field on the material 2, as shown in the perspective view, Figure 1 andFigure 2 As shown in the drawings, the microwave heating cavity 110 and the box shell 120 are provided with corresponding second heat dissipation holes 170, so as to discharge the high-temperature airflow after heat dissipation of the magnetron 320 in the microwave heating cavity 110 to the outside of the microwave heating box 100. Meanwhile, the second heat dissipation holes 170 can also play a role in discharging moisture.

[0052] The size of the second heat dissipation hole 170 should meet the requirement of the cutoff waveguide, that is, the second heat dissipation hole 170 should be designed as a cutoff waveguide hole to prevent microwave leakage through the second heat dissipation hole 170.

[0053] In some embodiments of the present application, as shown in the drawings, Figure 5 As shown in the drawings, the heat dissipation air duct 360 is a segmented structure, including an air inlet section 363 and an air outlet section 364; one end of the air inlet section 363 is the air inlet end 361 of the heat dissipation air duct 360, and the air inlet end 361 of the air inlet section 363 is fixedly connected to the fan bracket 351 of the heat dissipation fan 350, and the other end is fixedly connected to the magnetron 320; one end of the air outlet section 364 is connected to the magnetron 320, and the other end is the air outlet end 362 of the heat dissipation air duct 360. In this way, the heat dissipation air duct 360 and the magnetron 320 can be conveniently connected as a whole, and the magnetron 320 is ensured to be located on the airflow flow path of the heat dissipation air duct 360, and the whole can be conveniently installed in the shielding cover 310, improving the assembly efficiency.

[0054] The connection of the heat dissipation fan 350, the air inlet section 363, the magnetron 320, and the air outlet section 364 can be screw connection or welding, which is not specifically limited here.

[0055] Further, as shown in the drawings, Figure 5 The magnetron 320 is fixedly connected to the waveguide tube 330 to form a whole, so that the heat dissipation assembly, the magnetron 320, and the waveguide tube 330 are connected as a whole, the structure is compact, the volume is reduced, and the microwave generated by the magnetron 320 can only be coupled and transmitted to the microwave heating cavity 110 through the waveguide tube 330, and cannot leak into the shielding cover 310.

[0056] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An open-type microwave radiation heating testing device, characterized in that, include: A microwave heating chamber, comprising a microwave heating cavity and a shell, wherein the top and circumferential sides of the microwave heating cavity are respectively provided with a first detachable connection structure; A microwave leak-proof door is installed on the microwave heating chamber and is used to open and close the microwave heating cavity. Multiple microwave sources are configured to be detachably disposed within the microwave heating cavity and are positionally adjustable; each microwave source includes a shield, a magnetron, and a waveguide. The magnetron is disposed inside the shielding cover, the inlet end of the waveguide is located inside the shielding cover, the radiating antenna of the magnetron is inserted into the waveguide through the inlet end of the waveguide, and the outlet end of the waveguide extends out of the shielding cover; the shielding cover is provided with a second detachable connection structure for cooperating with the first detachable connection structure.

2. The open-type microwave radiation heating test device according to claim 1, characterized in that, The microwave source also includes a heat dissipation component for dissipating heat from the magnetron, wherein the heat sink of the magnetron is located on the airflow path of the heat dissipation component.

3. The open-type microwave radiation heating test device according to claim 2, characterized in that, The heat dissipation component includes a heat dissipation fan and a heat dissipation duct. The heat dissipation fan is located inside the shielding cover. The air inlet of the heat dissipation duct is located inside the shielding cover and connected to the heat dissipation fan. The air outlet extends to the outside of the shielding cover. A first heat dissipation hole is provided on the shielding cover at a position corresponding to the heat dissipation fan.

4. The open-type microwave radiation heating test device according to claim 3, characterized in that, The microwave heating cavity and the housing are respectively provided with second heat dissipation holes.

5. The open-type microwave radiation heating test device according to claim 3, characterized in that, The heat dissipation duct includes an air inlet section and an air outlet section; one end of the air inlet section is the air inlet end, which is fixedly connected to the fan bracket of the heat dissipation fan, and the other end is fixedly connected to the magnetron; one end of the air outlet section is connected to the magnetron, and the other end is the air outlet end.

6. The open-type microwave radiation heating test device according to claim 5, characterized in that, The magnetron and the waveguide are bonded and fixed together as one unit.

7. The open-type microwave radiation heating test device according to claim 1, characterized in that, The first detachable connection structure is a horizontally arranged suspension beam, and the second detachable connection structure is a hook.

8. The open-type microwave radiation heating test device according to claim 1, characterized in that, The enclosure is equipped with a control panel and a display panel.

Images