Microwave transmission component and microwave equipment

Abstract

The present invention provides a microwave transmission component and microwave equipment, belonging to the field of microwave equipment. The microwave transmission component includes a first waveguide tube and a second waveguide tube, and a connecting portion is provided on the outer walls of the first waveguide tube and the second waveguide tube; the ends of the first waveguide tube and the second waveguide tube are abutted, and a connecting structure is provided at the abutting point. The connecting structure includes a nut, a fastening bolt and two connecting rods, and the connecting rod includes a connecting end and a fastening end. The connecting rod is connected to the corresponding connecting portion through the connecting end, and the fastening end is provided with a wedge surface. The fastening bolt includes a fastening head and a threaded rod, and the fastening head includes two wedge surfaces. The two wedge surfaces of the fastening head respectively cooperate with the wedge surfaces of the two connecting rods. The above-mentioned connecting structure can be tightly attached to the outer wall of the waveguide tube or set in a groove on the outer wall, thereby minimizing the requirements of the connecting structure for installation space. After the above-mentioned microwave equipment adopts the microwave transmission component, its overall structure is more compact, saving installation space.

Description

Technical Field

[0001] The present invention relates to the field of waveguide tube connection, and in particular to a microwave transmission component and microwave equipment. Background Art

[0002] Microwave equipment has a wide range of applications, categorized by application area, including communications, medical, industrial, and consumer microwaves. Each application is based on the wavelength (i.e., frequency) of the microwaves it generates. For example, chemical vapor deposition equipment used in diamond production comprises a microwave source, a microwave transmission component, and a reaction chamber. The microwaves generated by the microwave source are transmitted to the reaction chamber via the microwave transmission component. However, due to the limited length of standard waveguides, practical applications often require connecting multiple waveguides to achieve long-distance transmission. In existing technology, multiple waveguides are typically connected using flanges. This connection method involves fitting a flange onto the end of the waveguide, which consumes considerable installation space. Summary of the Invention

[0003] An object of the present invention is to provide a microwave transmission component which adopts a novel connection structure, thereby reducing the requirement for installation space.

[0004] Another object of the present invention is to provide a microwave device, which adopts the above-mentioned microwave transmission component.

[0005] The present invention is achieved in that:

[0006] A microwave transmission component, comprising:

[0007] a first waveguide and a second waveguide, wherein at least two connecting portions are respectively provided on outer walls of the first waveguide and the second waveguide; ends of the first waveguide and the second waveguide are abutted, and at least two connecting structures are provided at the abutting portion;

[0008] The connecting structure includes a nut, a fastening bolt and two connecting rods, wherein the connecting rods include a rod body, a connecting end and a fastening end, wherein the connecting end and the fastening end are respectively arranged at two ends of the rod body, and the connecting rods are connected to the corresponding connecting parts through the connecting ends, and the fastening ends are provided with wedge-shaped surfaces;

[0009] The fastening bolt includes a fastening head and a threaded rod, wherein the fastening head includes two wedge-shaped surfaces, and the two wedge-shaped surfaces of the fastening head respectively cooperate with the wedge-shaped surfaces of the two connecting rods;

[0010] The nut is sleeved on the threaded rod. When the nut is tightened, the fastening head can apply tension to the connecting rod through the corresponding fastening end, so that the ends of the first waveguide tube and the second waveguide tube are tightly matched.

[0011] Furthermore,

[0012] The fastening end and the rod body of the connecting rod are L-shaped, and the wedge surface of the fastening end is set at an acute angle to the outer surface of the corresponding waveguide tube; the fastening end and the connecting end of the same connecting rod are respectively located on both sides of the fastening bolt.

[0013] Furthermore, strip grooves are provided on the outer walls of the first waveguide tube and the second waveguide tube, and the strip grooves extend along the length direction of the corresponding waveguide tube; the rod body of the connecting rod is arranged in the strip groove; a clamping groove is provided at one end of the strip groove away from the abutment, and the clamping groove forms the connecting part; the connecting end of the connecting rod is arranged in the clamping groove.

[0014] Furthermore, the strip groove is perpendicular to the clamping groove and is arranged in a T-shape; the connecting end and the rod body of the connecting rod are in a T-shape.

[0015] Furthermore, a rib is provided on one side of the strip groove and / or the clamping slot close to the outer surface of the corresponding waveguide tube, and the rib is used to prevent the connecting rod from falling out of the strip groove and / or the clamping slot. Furthermore, the rod body of the connecting rod is detachably connected to the connecting end of the connecting rod.

[0016] Furthermore, in the axial section of the threaded rod, the fastening head is trapezoidal. Furthermore, the first waveguide tube and the second waveguide tube are both rectangular tubes, and the connecting structure is provided on four sides of the first waveguide tube and the second waveguide tube.

[0017] A microwave device comprises a microwave source and any one of the microwave transmission components, wherein the microwave source is connected to the microwave transmission component.

[0018] The beneficial effects of the present invention are:

[0019] When the above-mentioned microwave transmission components and microwave equipment are used, the ends of adjacent waveguide tubes are docked, and the connecting ends of the two connecting rods are respectively connected to the connecting parts of the two waveguide tubes. Taking the microwave transmission components placed horizontally on the left and right as an example, the fastening end of the left connecting rod is located on the right side of the fastening head, and the fastening end of the right connecting rod is located on the left side of the fastening head; the two wedge-shaped surfaces of the fastening head match the wedge-shaped surfaces of the two fastening ends. After tightening the nut, the fastening head applies tension to the connecting rod through the corresponding fastening end, so that the two waveguide tubes fit tightly. The above-mentioned connection structure can be tightly attached to the outer wall of the waveguide tube or embedded in the groove on the outer wall, so as to minimize the requirements of the connection structure for installation space. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 is a three-dimensional diagram of a microwave transmission component provided by an embodiment of the present invention;

[0022] Figure 2 is an exploded view of a connection structure provided by an embodiment of the present invention;

[0023] Figure 3 is a three-dimensional diagram of a first waveguide provided by an embodiment of the present invention;

[0024] Figure 4 This is a front view of a microwave transmission assembly provided by an embodiment of the present invention;

[0025] Figure 5 The embodiment of the present invention provides Figure 4 A partial view of a section view.

[0026] Icons: 010-microwave transmission component; 011-first waveguide tube; 012-second waveguide tube; 013-strip groove; 0131-rib; 014-slot; 10-connection structure; 11-nut; 12-fastening bolt; 121-fastening head; 122-threaded rod; 13-connecting rod; 131-connecting end; 132-fastening end; 133-rod body. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Example

[0028] Please refer to Figure 1 , Figure 1 It is a stereoscopic diagram of the microwave transmission component provided in this embodiment; the microwave transmission component 010 includes a plurality of rectangular waveguide tubes, and two adjacent waveguide tubes are connected to form a component through corresponding connection structures 10.

[0029] In this embodiment, Figure 1 The two adjacent waveguides are named first waveguide 011 and second waveguide 012. The ends of the two waveguides abut against each other, where four connecting structures 10 are located. These connecting structures 10 are located on the four sides of the rectangular tube. Each of the four sides of the waveguide has a connecting portion for connecting to a corresponding connecting structure 10.

[0030] Please refer to Figure 2-Figure 5 The connection structure 10 includes a nut 11, a fastening bolt 12, and two connecting rods 13. One end of the two connecting rods 13 is connected to the connection portion of the two waveguides, and the fastening bolt 12 and nut 11 connect the other ends of the two connecting rods 13. When the nut 11 is tightened, the fastening bolt 12 can apply tension to the two connecting rods 13, thereby making the ends of the two adjacent waveguides fit tightly together.

[0031] Specifically, connecting rod 13 includes a rod body 133, connecting ends 131 and fastening ends 132 located at either end of rod body 133. Connecting end 131 of connecting rod 13 connects to the connection portion of the corresponding waveguide (taking a microwave transmission assembly positioned horizontally on both sides as an example, the left connecting rod corresponds to the left waveguide, and the right connecting rod corresponds to the right waveguide). The rod body 133 of connecting rod 13 extends along the length of the waveguide to the junction of the two waveguide ends, with fastening end 132 located at this junction. The fastening end 132 and rod body 133 are connected in an L-shape, and the side of fastening end 132 near connecting end 131 is a wedge-shaped surface that is inclined toward the outer wall of the corresponding waveguide, that is, tilted inward, such that the wedge-shaped surface forms an acute angle with the outer surface of the corresponding waveguide.

[0032] The fastening bolt 12 includes an integrally formed fastening head 121 and a threaded rod 122, and the fastening head 121 is arranged at one end of the threaded rod 122. Along the axial section of the threaded rod 122, the cross-section of the fastening head 121 is an isosceles trapezoidal structure, and the width is smaller at the end close to the threaded rod 122; the above design makes the fastening head 121 include two wedge-shaped surfaces. After assembly is completed, the wedge-shaped surfaces of the two connecting rods 13 respectively cooperate with the two wedge-shaped surfaces of the fastening head 121, and the fastening end 132 and the connecting end 131 of the same connecting rod 13 are respectively located on both sides of the fastening head 121; at this time, the threaded rod 122 of the fastening bolt 12 extends in a direction away from the outer surface of the waveguide tube, and the fastening head 121 is close to the outer surface of the waveguide tube. The nut 11 is sleeved on the threaded rod 122, and the nut 11 and the fastening head 121 are respectively located on both sides of the wedge-shaped surface of the fastening end 132; when the nut 11 is tightened, the two wedge-shaped surfaces of the fastening head 121 and the wedge-shaped surfaces of the corresponding connecting rods 13 are squeezed against each other, so that the two connecting rods 13 tend to approach each other, thereby making the end faces of the two waveguides tightly fit.

[0033] Furthermore, the outer walls of both the first waveguide 011 and the second waveguide 012 are provided with a strip groove 013, extending along the length of the corresponding waveguide. One end of the strip groove 013 extends to the mating surface where the two waveguides abut; the other end of the strip groove 013 is provided with a latching groove 014, which forms a T-shape with the strip groove 013. In this embodiment, the latching groove 014 constitutes the connecting portion of the corresponding waveguide. After the connecting rod 13 is assembled to the corresponding waveguide, the rod body 133 of the connecting rod 13 is disposed in the strip groove 013, and the connecting end 131 of the connecting rod 13 is disposed in the latching groove 014.

[0034] With the above structure, since the connecting rod 13 is completely located in the corresponding waveguide strip groove 013 and the clamping groove 014, the connecting structure 10 does not occupy any space outside the waveguide. The overall structure of the microwave transmission component 010 is more compact and does not require a large installation space.

[0035] To prevent connecting rod 13 from falling out of slot 013, a rib 0131 is provided on one side of slot 013, close to the outer surface of the corresponding waveguide. This prevents microwave transmission assembly 010 from falling out of slot 013 even if it experiences significant vibration, thereby enhancing the reliability of microwave transmission assembly 010.

[0036] Alternatively, in other embodiments, the outer surface of the waveguide may not include the strip grooves 013 and the latching grooves 014. In this case, a protrusion may be provided on the outer surface of the waveguide as a connecting portion, with the connecting rod 13 attached to the outer surface of the waveguide, and the connecting end 131 connected to the connecting portion. Due to the small lateral dimensions of the connecting rod 13, the entire connecting structure 10 occupies less lateral space within the waveguide; compared to flange-type connecting structures 10, this structure still saves installation space. Example

[0037] This embodiment provides a microwave device (not shown) comprising a microwave source, a discharge cavity, and the microwave transmission assembly provided in Example 1. One end of the microwave transmission assembly is connected to the microwave source, and the other end is connected to the discharge cavity. Microwaves are transmitted through the microwave transmission assembly to the discharge cavity for discharge. Since both the microwave source and discharge cavity are readily available, their further description is omitted.

[0038] After the microwave equipment above adopts the microwave transmission component in Example 1, its overall structure is more compact, saving installation space.

[0039] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A microwave transmission component, characterized in that: include: a first waveguide and a second waveguide, wherein at least two connecting portions are respectively provided on outer walls of the first waveguide and the second waveguide; ends of the first waveguide and the second waveguide are abutted, and at least two connecting structures are provided at the abutting portion; The connecting structure includes a nut, a fastening bolt and two connecting rods, wherein the connecting rods include a rod body, a connecting end and a fastening end, wherein the connecting end and the fastening end are respectively arranged at two ends of the rod body, and the connecting rods are connected to the corresponding connecting parts through the connecting ends, and the fastening ends are provided with wedge-shaped surfaces; The fastening bolt includes an integrally formed fastening head and a threaded rod, the fastening head includes two wedge-shaped surfaces, and the two wedge-shaped surfaces of the fastening head respectively cooperate with the wedge-shaped surfaces of the two connecting rods; The nut is sleeved on the threaded rod. When the nut is tightened, the fastening head can apply tension to the connecting rod through the corresponding fastening end, so that the ends of the first waveguide tube and the second waveguide tube are tightly matched.

2. The microwave transmission component according to claim 1, characterized in that: The fastening end and the rod body are L-shaped, and the wedge surface of the fastening end is set at an acute angle to the outer surface of the corresponding waveguide tube; the fastening end and the connecting end of the same connecting rod are respectively located on both sides of the fastening bolt.

3. A microwave transmission component according to claim 1 or 2, characterized in that: The outer walls of the first waveguide tube and the second waveguide tube are provided with strip grooves, and the strip grooves extend along the length direction of the corresponding waveguide tubes; the rod body of the connecting rod is arranged in the strip groove; the end of the strip groove away from the abutment is provided with a card groove, and the card groove forms the connecting part; the connecting end of the connecting rod is arranged in the card groove.

4. The microwave transmission component according to claim 3, characterized in that: The strip groove is perpendicular to the clamping groove and is arranged in a T shape; the connecting end and the rod body of the connecting rod are in a T shape.

5. The microwave transmission component according to claim 3, characterized in that: A rib is provided on one side of the strip groove and / or the clamping groove close to the outer surface of the corresponding waveguide tube, and the rib is used to prevent the connecting rod from falling off from the strip groove and / or the clamping groove.

6. The microwave transmission component according to claim 1, characterized in that: In the axial section of the threaded rod, the fastening head is trapezoidal.

7. A microwave device, characterized in that: The microwave device comprises a microwave source and the microwave transmission component according to any one of claims 1 to 6, wherein the microwave source is connected to the microwave transmission component.

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