Heat dissipation structure of microwave equipment

Abstract

The invention discloses a heat dissipation structure of a microwave device, comprising a chassis, a heat source and a fan all installed inside the chassis; the heat source comprises a transformer and a magnetron arranged in layers from bottom to top, the fan comprises a second fan and a first fan, and the second fan and the first fan are respectively arranged on the same side of the transformer and the magnetron; a cover plate for discharging hot air inside the chassis is installed at the rear end of the chassis, and ventilation holes for injecting air into the chassis are arranged at both ends of the chassis, wherein the horizontal position of the ventilation holes is far away from the cover plate; the transformer is arranged close to the cover plate, and the magnetron is arranged far away from the cover plate; a mounting plate for fixing the transformer and the magnetron respectively is also horizontally installed inside the chassis, and one end of the mounting plate is connected to a first bending portion that is inclined and bent. In the present application, by arranging the first bending portion, the hot air flowing through the transformer and the magnetron can be concentrated to flow to the cover plate, and the heat dissipation efficiency of the transformer and the magnetron can also be accelerated under the effect of the isolation of the mounting plate.

Description

Technical Field

[0001] The present invention relates to the technical field of microwave equipment, and in particular to a heat dissipation structure of microwave equipment. Background Art

[0002] In microwave therapy equipment, magnetron and transformer are the main heat sources, among which microwave magnetron is the core component of microwave generation, which can convert electrical energy into microwave energy of specific frequency. Transformer plays the role of power adapter in microwave therapy equipment, which can convert the input AC power (usually mains electricity) into voltage and current suitable for the operation of magnetron and other electronic components.

[0003] The transformers of existing microwave equipment include transformers with cylindrical fixed surfaces and rectangular transformers. The fixing method of the end surface of the cylindrical transformer affects its heat dissipation effect. When the transformers are concentrated in one layer, the location of the cooling fan further affects the heat dissipation efficiency of the transformer. It is necessary to prevent the heat generated by the multi-layer electronic components from affecting each other. It is also necessary to prevent the heat source inside the microwave equipment from being too dispersed due to the layered setting, which affects the heat dissipation efficiency inside the microwave equipment. Therefore, a heat dissipation structure of microwave equipment is proposed. Summary of the invention

[0004] The purpose of the present invention is to solve the technical problem of poor heat dissipation effect of layered arrangement of heat sources in the heat dissipation structure of microwave equipment in the prior art, and thus a heat dissipation structure of microwave equipment is proposed.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a heat dissipation structure of a microwave equipment, comprising a chassis, a heat source and a fan all installed inside the chassis; the heat source comprises a transformer and a magnetron arranged in layers from bottom to top, the fan comprises a second fan and a first fan, and the second fan and the first fan are respectively arranged on the same side of the transformer and the magnetron; a cover plate for discharging hot air inside the chassis is installed at the rear end of the chassis, and ventilation holes for injecting air into the chassis are arranged on both side ends of the chassis, wherein the horizontal position of the ventilation holes is far away from the cover plate; the transformer is arranged close to the cover plate, and the magnetron is arranged far away from the cover plate; a mounting plate for fixing the transformer and the magnetron respectively is also horizontally installed inside the chassis, one end of the mounting plate is connected to a first bending portion with an inclined bend, and the inclined first bending portion causes the hot air flowing through the transformer and the magnetron to flow to the cover plate in a concentrated manner.

[0006] Preferably, the mounting plate is connected to the second bending portion via the first bending portion; the mounting plate comprises a first mounting plate, a second mounting plate and a third mounting plate which are arranged in layers from top to bottom, the first bending portion on the third mounting plate is inclined upward, and the inclination direction of the upper end of the first bending portion is toward the cover plate; the first bending portion on the second mounting plate is inclined upward, and the inclination direction of the lower end of the first bending portion is toward the cover plate; the first bending portion on the first mounting plate is inclined downward, and the lower end of the first bending portion is toward the cover plate; wherein the first bending portion on the first mounting plate and the first bending portion on the third mounting plate are arranged on the same side and close to the cover plate; wherein the first bending portion on the second mounting plate is arranged away from the cover plate.

[0007] Preferably, a magnetron is fixedly connected to the upper end of the second mounting plate, and a heat dissipation part is connected to the upper end of the magnetron; the second mounting plate is fixedly connected to the first fan via the second bending part, and the first fan and the heat dissipation part are arranged opposite each other; the transformer comprises a first transformer and a second transformer, wherein the second transformer is arranged between the first transformer and the second fan, and the volume of the second transformer is larger than that of the first transformer; the second transformer and the second fan are fixedly connected to the upper end surface of the third mounting plate, and the first transformer is installed on the third mounting plate via the second bending part.

[0008] Preferably, the end faces of the first transformers are arranged vertically, and at least two first transformers have a columnar structure, and the end faces are mounted on a U-shaped frame, wherein the third mounting plate is fixedly connected to the U-shaped frame via the second bending portion.

[0009] Preferably, the first transformer is suspended above the second bent portion connected to the third mounting plate via a U-shaped frame, and the height of the first transformer is higher than that of the second transformer, wherein the height of the second fan is greater than that of the second transformer.

[0010] Preferably, the second transformers are arranged in pairs and are symmetrically distributed and fixed on the second mounting plate; the first transformers are arranged in an array along the long side direction of the second bending portion, and the middle first transformer is arranged along the symmetry axis of the second transformer, wherein the first transformer and the second transformer are respectively arranged at both ends of the short side direction of the first bending portion.

[0011] Preferably, a ventilation plate with end openings is installed on the cover plate, and the first transformer is arranged close to the ventilation plate.

[0012] Preferably, the heat source also includes a main control board, which is fixed to the upper end of the first mounting plate, and the first mounting plate is provided with a through hole for heat dissipation; wherein the through hole is arranged above the magnetron to facilitate the installation of a microwave output cable of the magnetron, one end of the microwave output cable passes through the side wall of the chassis, and the microwave output cable is used to connect the microwave therapy head; the main control board is located directly above the magnetron.

[0013] Preferably, the lower end surface of the first mounting plate is also connected to a guide baffle, one end of which is arranged at the edge of the through hole; the guide baffle is located above the heat dissipation part of the magnetron, and the lower end of the guide baffle is inclined toward the cover plate, and the distance from the upper end of the guide baffle to the cover plate is greater than the distance from the magnetron to the cover plate.

[0014] Preferably, a first guide side plate and a second guide side plate fixed vertically are also installed on the inner wall of the chassis, and the first guide side plate and the second guide side plate are symmetrically distributed at both ends of the mounting plate; openings are arranged at the top corners of the lower ends of the first guide side plate and the second guide side plate, and the openings are arranged away from the cover plate; an isolated ventilation channel is formed between the first mounting plate, the second mounting plate and the third mounting plate by arranging the first guide side plate and the second guide side plate; the vertical end surfaces of the first guide side plate and the second guide side plate are connected with the first support plate, the second support plate and the third support plate arranged horizontally, and the first support plate, the second support plate and the third support plate are arranged in sequence from top to bottom; the upper ends of the first support plate, the second support plate and the third support plate are respectively installed with the first mounting plate, the second mounting plate and the third mounting plate.

[0015] Preferably, a second protrusion is provided at a common end of the first guide side plate and the second guide side plate, an upper end of the second protrusion is connected to a third protrusion, and an upper end surface of the third protrusion abuts against a second bending portion.

[0016] Preferably, the second transformer is provided with two layers of coils, and the coils are arranged horizontally and symmetrically.

[0017] Preferably, the fan further comprises a third fan disposed inside the chassis, wherein a vertical end face of the third fan is fixed on the ventilation plate, wherein the third fan discharges air inside the chassis to the outside of the chassis.

[0018] Beneficial effects: In the technical solution, a cover plate for discharging hot air inside the chassis is installed at the rear end of the chassis, and ventilation holes for injecting air into the chassis are arranged on both side ends of the chassis, wherein the horizontal position of the ventilation holes is far away from the cover plate; the transformer is arranged close to the cover plate, and the magnetron is arranged far away from the cover plate; wherein a second fan and a first fan are arranged on the same side of the transformer and the magnetron, respectively, for directly extracting the air injected from the ventilation holes and blowing it toward the magnetron and the transformer under the drive of the first fan and the second fan respectively, and blowing the hot air of the magnetron and the transformer toward the cover plate under the isolation guidance of the mounting plate, and dissipating it to the outside of the chassis through the cover plate; wherein a mounting plate for fixing the transformer and the magnetron respectively is also horizontally installed inside the chassis, and one end of the mounting plate is connected to a first bent portion with an inclined bend, and by arranging the first bent portion on the mounting plate, the hot air flowing through the transformer and the magnetron can be concentrated to flow toward the cover plate, and the heat dissipation efficiency of the transformer and the magnetron can also be accelerated under the isolation effect of the mounting plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A left side view of a heat dissipation structure of a microwave device proposed by the present invention;

[0020] Figure 2 A rear view of a partial structure of the heat dissipation structure of the microwave device proposed by the present invention;

[0021] Figure 3 A right side view of a partial structure of the heat dissipation structure of the microwave device proposed by the present invention;

[0022] Figure 4 for Figure 2 Sectional view at AA;

[0023] Figure 5 for Figure 2 Cross-sectional view at BB;

[0024] Figure 6 for Figure 3 Sectional view at CC of ;

[0025] Figure 7 A three-dimensional diagram of the partial structure of the heat dissipation structure of the microwave device proposed by the present invention.

[0026] Legend:

[0027] 1. Chassis; 11. Cover plate; 111. Ventilation plate; 12. Bottom plate; 121. Roller; 13. Ventilation hole; 14. Microwave output cable; 201. First guide side plate; 202. Second guide side plate; 20. Opening; 21. First protrusion; 22. Second protrusion; 221. Third protrusion; 231. First support plate; 232. Second support plate; 233. Third support plate; 301. First bending portion; 302. Second bending portion; 31. First mounting plate; 310. Through hole; 311. Guide baffle; 32. Second mounting plate; 33. Third mounting plate; 41. First transformer; 411. U-shaped frame; 42. Second transformer; 421. Coil; 61. First fan; 62. Second fan; 63. Third fan; 7. Magnetron; 71. Heat dissipation; 8. Main control board. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal connection of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Embodiment 1

[0030] Reference Figure 1-Figure 7An embodiment of the present invention provides a heat dissipation structure of a microwave device, comprising a chassis 1, a heat source and a fan both installed inside the chassis 1; the heat source comprises a transformer and a magnetron 7 arranged in layers from bottom to top, and the fan comprises a second fan 62 and a first fan 61, wherein the second fan 62 and the first fan 61 are respectively arranged on the same side of the transformer and the magnetron 7;

[0031] The rear end of the chassis 1 is provided with a cover plate 11 for discharging hot air from the inside of the chassis 1, and both sides of the chassis 1 are provided with ventilation holes 13 for injecting air into the inside of the chassis 1, wherein the horizontal position of the ventilation holes 13 is far away from the cover plate 11;

[0032] The transformer is arranged close to the cover plate 11, and the magnetron 7 is arranged far away from the cover plate 11;

[0033] A mounting plate for fixing the transformer and the magnetron 7 respectively is also horizontally installed inside the chassis 1. One end of the mounting plate is connected to a first bent portion 301 that is bent obliquely. The inclined first bent portion 301 allows the hot air flowing through the transformer and the magnetron 7 to flow to the cover plate 11, thereby preventing the heat generated by the heat source inside the chassis 1 from being too dispersed. At the same time, the mounting plate also arranges the transformer and the magnetron 7 in layers.

[0034] In this embodiment, the positions of the cover plate 11 and the ventilation holes 13, as well as the positions of the magnetron 7 and the transformer, play a key role in the heat dissipation of the technical solution, wherein the first fan 61 and the second fan 62 are arranged on the same side, for directly extracting the air injected from the ventilation holes 13 and blowing it toward the magnetron 7 and the transformer under the drive of the first fan 61 and the second fan 62, respectively, and blowing the hot air of the magnetron 7 and the transformer toward the cover plate 11 under the isolation guidance of the mounting plate, and dissipating it to the outside of the chassis 1 through the cover plate 11. In this embodiment, the first bending portion 301 is arranged on the mounting plate to make the hot air flowing from the transformer and the magnetron 7 flow to the cover plate 11, and the heat dissipation efficiency of the transformer and the magnetron 7 can also be accelerated under the isolation of the mounting plate. Embodiment 2

[0035] Reference Figure 1-Figure 7 , the difference between this embodiment and the first embodiment is that: the mounting plate is connected to the second bending portion 302 via the first bending portion 301;

[0036] The mounting plate comprises a first mounting plate 31, a second mounting plate 32 and a third mounting plate 33 which are arranged in layers from top to bottom. The first bending portion 301 on the third mounting plate 33 is inclined upward, and the upper end of the first bending portion 301 is inclined toward the cover plate 11.

[0037] The first bent portion 301 on the second mounting plate 32 is inclined upward, and the inclined direction of the lower end of the first bent portion 301 is toward the cover plate 11;

[0038] The first bending portion 301 on the first mounting plate 31 is inclined downward, and the lower end of the first bending portion 301 faces the cover plate 11;

[0039] The first bending portion 301 on the first mounting plate 31 and the first bending portion 301 on the third mounting plate 33 are arranged on the same side and close to the cover plate 11;

[0040] The first bent portion 301 on the second mounting plate 32 is disposed away from the cover plate 11;

[0041] The upper end of the second mounting plate 32 is fixedly connected to the magnetron 7, and the upper end of the magnetron 7 is connected to the heat dissipation portion 71;

[0042] The second mounting plate 32 is fixedly connected to the first fan 61 via the second bending portion 302, and the first fan 61 and the heat dissipation portion 71 are arranged opposite to each other;

[0043] The transformer includes a first transformer 41 and a second transformer 42, wherein the second transformer 42 is arranged between the first transformer 41 and the second fan 62, and the volume of the second transformer 42 is larger than that of the first transformer 41;

[0044] The upper end surface of the third mounting plate 33 is fixedly connected with the second transformer 42 and the second fan 62 , and the third mounting plate 33 is installed with the first transformer 41 via the second bending portion 302 ;

[0045] The first transformers 41, which are at least two in number, are of a columnar structure, and the end faces are mounted on the U-shaped frame 411, wherein the third mounting plate 33 is fixedly connected to the U-shaped frame 411 via the second bending portion 302; in this embodiment, preferably, the number of the first transformers 41 is three, which are two magnetron filament transformers and a power transformer located in the middle;

[0046] A ventilation plate 111 with holes on the end surface is installed on the cover plate 11. The ventilation plate 111 in this embodiment refers to a plate with holes on the end surface.

[0047] In this embodiment, the end face of the first transformer 41 is vertically arranged and fixed on the second bending portion 302 connected to the third mounting plate 33 via a U-shaped frame 411; wherein the vertically arranged first transformer 41 is suspended above the second bending portion 302 connected to the third mounting plate 33 via the U-shaped frame 411, and the height of the first transformer 41 is higher than the height of the second transformer 42, wherein the height of the second fan 62 is greater than the height of the second transformer 42, wherein the air drawn by the second fan 62 first acts on the second transformer 42, and drives the heat on the second transformer 42 to flow to On the second bending part 302 connected to the third mounting plate 33, the airflow acting on the second bending part 302 is concentrated to flow to the first transformer 41, and drives the heat of the first transformer 41 to flow to the ventilation plate 111; at the same time, part of the airflow blown out from the second fan 62 directly acts on the first transformer 41, and the airflow blown out by the second fan 62 is combined with the airflow output from the first bending part 301 inclined at the upper end toward the cover plate 11 and concentrated to flow to the first transformer 41, and then discharged through the ventilation plate 111. This technical solution fully dissipates the heat of the second transformer 42 and the first transformer 41. In this embodiment, the first transformer 41 is arranged close to the ventilation plate 111, so that the heat of the second transformer 42 and the first transformer 41 is further fully discharged quickly through the ventilation plate 111. The airflow blown out by the first fan 61 directly acts on the heat dissipation part 71 of the magnetron 7, wherein a first mounting plate 31 is arranged above the magnetron 7. The airflow blown out by the first fan 61 takes away the heat of the heat dissipation part 71 and transports it to the ventilation plate 111. Part of the airflow is concentrated to flow to the ventilation plate 111 under the action of the first bending part 301 connected to the first mounting plate 31. Therefore, installing the first mounting plate 31, the second mounting plate 32 and the third mounting plate 33 in layers inside the chassis 1 can accelerate the heat dissipation efficiency of the transformer and the magnetron 7.

[0048] As a further improved embodiment, the distance from the second fan 62 to the cover plate 11 is smaller than the distance from the first fan 61 to the cover plate 11, and the horizontal position of the second fan 62 is set between the ventilation hole 13 and the second transformer. The air injected into the interior of the chassis 1 through the ventilation hole 13 is blown toward the transformer under the action of the second fan 62, thereby dissipating the heat of the transformer to the outside of the chassis 1 through the ventilation plate 111; in this embodiment, it is preferred that the second fan 62 and the first fan 61 are both facing the ventilation plate 111.

[0049] As a further improved embodiment, the second transformers 42 are arranged in pairs and symmetrically distributed and fixed on the second mounting plate 32. This embodiment further limits the position of the second fan, wherein the second fan 62 is located below the second mounting plate 32, and the second mounting plate 32 combines with the airflow blown out by the first fan 61 to prevent the airflow blown out by the second fan 62 from diffusing toward the magnetron 7. In this embodiment, the first transformers 41 are arranged in an array along the long side direction of the second bending portion 302, wherein the middle first transformer 41 is arranged along the symmetry axis of the second transformer 42, wherein the first transformer 41 and the second transformer 42 are respectively arranged at both ends of the short side direction of the first bending portion 301, to prevent the first transformer 41 and the second transformer 42 from being too dispersed, thereby reducing the heat dissipation efficiency inside the chassis 1. Embodiment 3

[0050] refer to Figure 1-Figure 7 As shown, the difference between this embodiment and the second embodiment is that: the heat source further includes a main control board 8, the main control board 8 is fixed to the upper end of the first mounting plate 31, and the first mounting plate 31 is provided with a through hole 310 for heat dissipation;

[0051] The through hole 310 is arranged above the magnetron 7 to facilitate the installation of the microwave output cable 14 on the magnetron 7. One end of the microwave output cable 14 passes through the side wall of the chassis 1. The microwave output cable 14 is used to connect the microwave treatment head.

[0052] The lower end surface of the first mounting plate 31 is also connected to a guide baffle 311, and one end of the guide baffle 311 is arranged at the edge of the through hole 310; in this embodiment, the guide baffle 311 and the first mounting plate 31 are preferably connected in one piece;

[0053] The guide baffle 311 is located above the heat dissipation portion 71 of the magnetron 7, and the lower end of the guide baffle 311 is inclined toward the cover plate 11, and the distance between the upper end of the guide baffle 311 and the cover plate 11 is greater than the distance between the magnetron 7 and the cover plate 11; that is, the distance between the upper end of the guide baffle 311 and the first fan 61 is less than the distance between the heat dissipation portion 71 and the first fan 61, and the airflow acting on the guide baffle 311 by the first fan 61 is concentrated and transported to the heat dissipation portion 71 of the magnetron 7, thereby further improving the heat dissipation efficiency of the magnetron 7;

[0054] The main control board 8 is located directly above the magnetron 7 .

[0055] In this embodiment, the main control board 8 is fixed on the first mounting plate 31, wherein the first mounting plate 31 is provided with a through hole 310 to connect the air above the first mounting plate 31 and the air below the first mounting plate 31. When the first fan 61 outputs airflow toward the heat dissipation portion 71, the airflow output by the first fan 61 is concentrated on the heat dissipation portion 71 under the action of the guide baffle 311, resulting in the formation of a low-pressure area around the heat dissipation portion 71. Since the through hole 310 is provided on the first mounting plate 31, the heat generated by the main control board 8 flows through the through hole 310 to the channel between the first mounting plate 31 and the second mounting plate 32, and flows to the ventilation plate 111. Embodiment 4

[0056] refer to Figure 1-Figure 7 As shown, the present embodiment is different from the above embodiments in that a first guide side plate 201 and a second guide side plate 202 are also installed vertically on the inner wall of the chassis 1; in the present embodiment, preferably, the upper ends of the first guide side plate 201 and the second guide side plate 202 are connected with a bent first protrusion 21, and the first protrusion 21 is fixed on the inner wall of the chassis 1;

[0057] The first guide side plate 201 and the second guide side plate 202 are symmetrically distributed at both ends of the mounting plate;

[0058] The first guide side plate 201 and the second guide side plate 202 are provided with openings 20 at the top corners of the lower ends thereof. The openings 20 are arranged away from the cover plate 11. The openings 20 are arranged on the first guide side plate 201 and the second guide side plate 202 to prevent the first guide side plate 201 and the second guide side plate 202 from affecting the air drawn by the second fan 62 through the ventilation holes 13. In this embodiment, the first guide side plate 201 and the second guide side plate 202 are arranged to form an isolated ventilation passage between the first mounting plate 31, the second mounting plate 32 and the third mounting plate 33.

[0059] The vertical end surfaces of the first guide side plate 201 and the second guide side plate 202 are connected with a horizontally arranged first support plate 231, a second support plate 232 and a third support plate 233, and the first support plate 231, the second support plate 232 and the third support plate 233 are arranged in sequence from top to bottom;

[0060] The first mounting plate 31 , the second mounting plate 32 , and the third mounting plate 33 are respectively mounted on the upper ends of the first supporting plate 231 , the second supporting plate 232 , and the third supporting plate 233 .

[0061] In this embodiment, the first guide side plate 201 and the second guide side plate 202 are installed inside the chassis 1 so that the first mounting plate 31, the second mounting plate 32 and the third mounting plate 33 form the main frame of the layered air guide channel, so as to avoid the heat generated by the layered transformer and the magnetron 7 from affecting each other, and further improve the heat dissipation efficiency of the first fan 61 and the second fan 62 for the magnetron 7 and the transformer respectively by narrowing the circulation range of the ventilation channel. The transformer and the magnetron 7 are respectively fixed on the third mounting plate 33 and the second mounting plate 32, so that the transformer and the magnetron 7 are modularly assembled, and then the first guide side plate 201 and the second guide side plate 202 are fixed inside the chassis 1, so as to reduce the assembly difficulty of the chassis 1.

[0062] As a further improved embodiment, the common end of the first guide side plate 201 and the second guide side plate 202 is provided with a second protrusion 22, the upper end of the second protrusion 22 is connected to the third protrusion 221, and the upper end surface of the third protrusion 221 abuts against the second bending portion 302. In this embodiment, the third protrusion 221 and the second protrusion 22 are connected in an integral manner, and the third protrusion 221 is provided on the first guide side plate 201 and the second guide side plate 202 respectively to assist in supporting the second bending portion 302 installed on the first transformer 41, so as to prevent the second bending portion 302 installed on the first transformer 41 from structural deformation.

[0063] As a further improved embodiment, the fixed end surface of the second transformer 42 is a rectangular structure or a square structure;

[0064] The second transformer 42 is provided with two layers of coils 421, which are arranged horizontally and symmetrically. The horizontal and symmetrical arrangement of the coils 421 in this embodiment facilitates the airflow to take away its heat, and also reduces the influence of the coils 421 on the airflow blown out by the second fan 62.

[0065] As a further improved embodiment, the fan further includes a third fan 63 disposed inside the chassis 1, and a vertical end face of the third fan 63 is fixed on the ventilation plate 111, wherein the third fan 63 discharges the air inside the chassis 1 to the outside of the chassis 1. In this embodiment, the third fan 63 is provided to extract the hot air blown out by the first fan 61 and the second fan 62, so that the hot air blown out by the first fan 61 and the second fan 62 is concentrated to flow to the third fan 63, and this technical solution significantly improves the heat dissipation efficiency inside the chassis 1.

[0066] As a further improved embodiment, a vehicle floor plate 12 is installed at the lower end of the chassis 1, and rollers 121 are installed at the lower end of the vehicle floor plate 12. The vehicle floor plate 12 is provided to facilitate the transportation of the chassis 1.

[0067] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A heat dissipation structure of a microwave device, comprising a chassis (1), a heat source and a fan both mounted inside the chassis (1); the heat source comprising a transformer and a magnetron (7) arranged in layers from bottom to top, the fan comprising a second fan (62) and a first fan (61), characterized in that: A second fan (62) and a first fan (61) are respectively arranged on the same side of the transformer and the magnetron (7); a cover plate (11) for discharging hot air from the inside of the chassis (1) is installed at the rear end of the chassis (1); ventilation holes (13) for injecting air into the inside of the chassis (1) are arranged at both side ends of the chassis (1), wherein the horizontal position of the ventilation holes (13) is far away from the cover plate (11); the transformer is arranged close to the cover plate (11), and the magnetron (7) is arranged far away from the cover plate (11); a mounting plate for fixing the transformer and the magnetron (7) is also horizontally installed inside the chassis (1), one end of the mounting plate is connected to a first bent portion (301) that is bent obliquely, and the first bent portion (301) that is arranged obliquely allows the hot air flowing from the transformer and the magnetron (7) to flow toward the cover plate (11); the mounting plate is connected to a second bent portion (302) via the first bent portion (301); The mounting plate comprises a first mounting plate (31), a second mounting plate (32) and a third mounting plate (33) which are arranged in layers from top to bottom, wherein the first bending portion (301) on the third mounting plate (33) is inclined upward, and the inclination direction of the upper end of the first bending portion (301) is toward the cover plate (11); the first bending portion (301) on the second mounting plate (32) is inclined upward, and the inclination direction of the lower end of the first bending portion (301) is toward the cover plate (11); the first bending portion (301) on the first mounting plate (31) is inclined downward, and the lower end of the first bending portion (301) is toward the cover plate (11); wherein the first bending portion (301) on the first mounting plate (31) and the first bending portion (301) on the third mounting plate (33) are arranged on the same side and close to the cover plate (11); wherein the first bending portion (301) on the second mounting plate (32) is arranged away from the cover plate (11).

2. The heat dissipation structure of the microwave device according to claim 1, characterized in that: The upper end of the second mounting plate (32) is fixedly connected to a magnetron (7), and the upper end of the magnetron (7) is connected to a heat dissipation portion (71); the second mounting plate (32) is fixedly connected to a first fan (61) via a second bending portion (302), and the first fan (61) and the heat dissipation portion (71) are arranged opposite each other; the transformer comprises a first transformer (41) and a second transformer (42), wherein the second transformer (42) is arranged between the first transformer (41) and the second fan (62), and the volume of the second transformer (42) is greater than that of the first transformer (41); the upper end surface of the third mounting plate (33) is fixedly connected to the second transformer (42) and the second fan (62), and the first transformer (41) is installed on the third mounting plate (33) via the second bending portion (302).

3. The heat dissipation structure of the microwave device according to claim 2, characterized in that: The end faces of the first transformers (41) are arranged vertically, and at least two first transformers (41) are in a columnar structure, and the end faces are mounted on a U-shaped frame (411), wherein the third mounting plate (33) is fixedly connected to the U-shaped frame (411) via the second bending portion (302).

4. The heat dissipation structure of the microwave device according to claim 3, characterized in that: The first transformer (41) is suspended above the second bent portion (302) connected to the third mounting plate (33) via a U-shaped frame (411), and the height of the first transformer (41) is higher than the height of the second transformer (42), wherein the height of the second fan (62) is greater than the height of the second transformer (42).

5. The heat dissipation structure of the microwave device according to claim 4, characterized in that: The second transformers (42) are arranged in pairs and are symmetrically distributed and fixed on the second mounting plate (32); the first transformers (41) are arranged in an array along the long side direction of the second bending portion (302), and the middle first transformer (41) is arranged along the symmetry axis of the second transformer (42), wherein the first transformer (41) and the second transformer (42) are respectively arranged at two ends of the short side direction of the first bending portion (301).

6. The heat dissipation structure of the microwave device according to any one of claims 2 to 5, characterized in that: A ventilation plate (111) with an end surface opening is mounted on the cover plate (11), and the first transformer (41) is arranged close to the ventilation plate (111).

7. The heat dissipation structure of the microwave device according to claim 6, characterized in that: The distance between the second fan (62) and the cover plate (11) is smaller than the distance between the first fan (61) and the cover plate (11); the horizontal position of the second fan (62) is arranged between the ventilation hole (13) and the second transformer; and the second fan (62) and the first fan (61) are both directly opposite to the ventilation plate (111).

8. The heat dissipation structure of the microwave device according to any one of claims 1 to 5, characterized in that: The heat source further comprises a main control board (8), the main control board (8) being fixed to the upper end of the first mounting board (31), the first mounting board (31) being provided with a through hole (310) for heat dissipation; wherein the through hole (310) is arranged above the magnetron (7) to facilitate installation of a microwave output cable (14) on the magnetron (7), one end of the microwave output cable (14) passing through a side wall of the chassis (1), the microwave output cable (14) being used for connecting to a microwave treatment head; the main control board (8) is located directly above the magnetron (7).

9. The heat dissipation structure of the microwave device according to claim 8, characterized in that: The lower end surface of the first mounting plate (31) is also connected to a flow guide baffle (311), one end of the flow guide baffle (311) being arranged at the edge of the through hole (310); the flow guide baffle (311) is located above the heat dissipation portion (71) of the magnetron (7), and the lower end of the flow guide baffle (311) is inclined toward the cover plate (11), and the distance from the upper end of the flow guide baffle (311) to the cover plate (11) is greater than the distance from the magnetron (7) to the cover plate (11).

10. The heat dissipation structure of the microwave device according to any one of claims 1 to 5, characterized in that: A first guide side plate (201) and a second guide side plate (202) are also installed on the inner wall of the chassis (1), and the first guide side plate (201) and the second guide side plate (202) are symmetrically distributed at both ends of the mounting plate; openings (20) are provided at the top corners of the lower ends of the first guide side plate (201) and the second guide side plate (202), and the openings (20) are arranged away from the cover plate (11); by arranging the first guide side plate (201) and the second guide side plate (202), the first mounting plate (31), the second mounting plate (32) and the third mounting plate (33) are An isolated ventilation passage is formed between the two sides; the vertical end surfaces of the first guide side plate (201) and the second guide side plate (202) are connected to a horizontally arranged first support plate (231), a second support plate (232) and a third support plate (233); the first support plate (231), the second support plate (232) and the third support plate (233) are arranged in sequence from top to bottom; the upper ends of the first support plate (231), the second support plate (232) and the third support plate (233) are respectively installed with a first mounting plate (31), a second mounting plate (32) and a third mounting plate (33).

11. The heat dissipation structure of the microwave device according to claim 10, characterized in that: A second protruding portion (22) is provided at a common end of the first guide side plate (201) and the second guide side plate (202); the upper end of the second protruding portion (22) is connected to a third protruding portion (221); and the upper end surface of the third protruding portion (221) abuts against a second bent portion (302).

12. The heat dissipation structure of the microwave device according to any one of claims 2 to 5, characterized in that: The second transformer (42) is provided with two layers of coils (421), and the coils (421) are arranged horizontally and symmetrically.

13. The heat dissipation structure of the microwave device according to any one of claims 1 to 5, characterized in that: The fan further comprises a third fan (63) disposed inside the chassis (1), wherein a vertical end surface of the third fan (63) is fixed on the ventilation plate (111), wherein the third fan (63) discharges air inside the chassis (1) to the outside of the chassis (1).

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