Power combiner and microwave equipment

Abstract

The utility model provides a power combiner and microwave equipment, and belongs to the technical field of microwaves. The power combiner comprises a power combining unit, and the power combining unit is used for combining the multiple paths of microwave signals into one path of signals; the power synthesis unit is roughly in a flat cylinder shape and comprises a roughly-circular fixing plate, a mounting plate comprises a first end and a second end, and the first end of the mounting plate is perpendicularly connected with the plate face of the fixing plate. Each mounting plate is correspondingly provided with a power module, and the power modules are used for generating microwave signals; and each mounting plate is provided with a cooling channel. During use, the hydraulic pump is connected with the cooling channel of each mounting plate through the water supply pipe, so that a cooling medium (such as cooling water) is introduced into each mounting plate, and heat generated by the power module is transferred to the mounting plates and then taken away by the cooling medium. The power combiner provided by the utility model is good in overall heat dissipation effect and compact in structure.

Description

Technical Field

[0001] The utility model relates to the technical field of microwaves, in particular to a power synthesizer and microwave equipment. Background Art

[0002] A power combiner is a device that combines the energy of two or more microwave input signals into one output signal. It can also be used in reverse to distribute the energy of one input signal into multiple signal outputs. In this case, it is a power divider. A power combiner generally includes multiple power modules, which are used to generate microwave signals. Then, the power combining unit combines multiple branch signals into one signal. However, the multiple power modules of existing power combiners generate a lot of heat, making it difficult to effectively cool them down. Utility Model Content

[0003] The utility model aims to provide a power combiner, which can effectively cool and dissipate heat for a power module by introducing cooling water into a cooling channel of a mounting plate.

[0004] Another object of the utility model is to provide a microwave device, which adopts the above-mentioned power synthesizer.

[0005] The utility model is achieved in this way:

[0006] A power synthesizer, comprising: a power synthesis unit, used to synthesize multiple microwave signals into one output signal; the power synthesis unit comprises a fixing plate;

[0007] A plurality of mounting plates, each mounting plate comprising a first end and a second end, wherein the first end of the mounting plate is vertically connected to the plate surface of the fixing plate; a power module is correspondingly arranged on each mounting plate, and the power module is used to generate a microwave signal;

[0008] Each of the mounting plates is provided with a cooling channel.

[0009] Furthermore, the sides of the plurality of mounting plates are adjacent to each other in sequence and enclose a cylindrical structure.

[0010] Further, a water diversion plate, the plate surface of which is connected to the second end of the mounting plate;

[0011] The water divider plate is provided with a water divider plate water inlet and a plurality of water divider plate channels, the water divider plate water inlet is communicated with the plurality of water divider plate channels, and the plurality of water divider plate channels are respectively communicated with the cooling channels of the plurality of mounting plates.

[0012] Furthermore, a plurality of water return channels are provided on the fixing plate, and each water return channel is respectively connected to the cooling channels of the plurality of mounting plates;

[0013] A water return pipe is arranged inside the cylindrical structure, a water outlet is arranged on the water dividing plate, the multiple water return channels intersect and are connected with one end of the water return pipe, and the other end of the water return pipe is connected with the water outlet.

[0014] Furthermore, the water inlet of the cooling channel is arranged on the end surface of the first end of the mounting plate; and the water outlet of the cooling channel is arranged on the end surface of the first end of the mounting plate.

[0015] Furthermore, the plurality of mounting plates are radially arranged around the center of the fixing plate.

[0016] Furthermore, it also includes a water divider, one end of which is connected to the fixed plate, and the other end of which is provided with a water inlet and a water outlet of the water divider;

[0017] The side of the water distributor is provided with a plurality of water outlet channels, each of which is respectively connected to the water inlet of the cooling channel of the corresponding mounting plate; the side of the water distributor is also provided with a plurality of water return channels, each of which is respectively connected to the water outlet of the cooling channel of the corresponding mounting plate;

[0018] The water inlet of the water distributor is communicated with the multiple water outlet channels, and the water outlet of the water distributor is communicated with the multiple water return channels.

[0019] Furthermore, the mounting plate is connected to the side of the water distributor through an inner end surface; the water inlet and the water outlet of the cooling channel are both arranged on the inner end surface of the mounting plate.

[0020] A microwave device comprises a rack and a plurality of power synthesizers; the plurality of power synthesizers are all connected to the rack.

[0021] The beneficial effects of the utility model are:

[0022] The power combiner obtained by the above design of the utility model, when in use, the hydraulic pump is connected to one end of the cooling channel of each mounting plate through a water supply pipe, and the other end of the cooling channel is used to connect to the pipeline of the water storage container, thereby forming a cooling circuit. After the cooling medium (such as cooling water) is passed into each mounting plate, the heat generated by the power module is transferred to the mounting plate and then taken away by the cooling medium. The power combiner provided by the present application has a good overall heat dissipation effect and a compact structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model 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 creative work.

[0024] Figure 1 is a three-dimensional diagram of a power combiner provided in Example 1 of the utility model;

[0025] Figure 2 is an exploded diagram of a power combiner provided in Embodiment 1 of the present utility model;

[0026] Figure 3 This is a front view of the water distribution plate provided in Example 1 of the utility model;

[0027] Figure 4 The utility model embodiment 1 provides Figure 3 Sectional view of AA in the middle;

[0028] Figure 5 is a three-dimensional diagram of a power combiner provided in Embodiment 2 of the present utility model;

[0029] Figure 6 is an exploded diagram of a power combiner provided in Embodiment 2 of the present utility model;

[0030] Figure 7 This is a front view of the water divider provided in Example 2 of the utility model;

[0031] Figure 8 The utility model embodiment 2 provides Figure 7 Cross-sectional view of BB.

[0032] Icons: 1-power combiner; 11-power combiner unit; 12-mounting plate; 13-power module; 14-water distribution plate; 141-water distribution plate water inlet; 142-water distribution plate water outlet; 143-water distribution plate channel; 15-fixing plate; 16-return pipe; 17-water distributor; 171-water outlet channel; 172-return channel; 173-water inlet and storage space; 174-water distributor water inlet; 175-water distributor water outlet. DETAILED DESCRIPTION

[0033] Example:

[0034] Please refer to Figure 1 and Figure 2The present embodiment provides a power synthesizer 1, which includes a power synthesis unit 11, which is used to synthesize multiple microwave signals into one signal; the power synthesis unit 11 is roughly cylindrical, and includes a roughly circular fixing plate 15. A plurality of mounting plates 12 are arranged on the fixing plate 15, and a power module 13 is correspondingly arranged on each mounting plate 12; each mounting plate 12 is a rectangular plate, which includes a first end and a second end, and the mounting plate 12 is vertically connected to the plate surface of the fixing plate 15 through the first end. The sides of the plurality of mounting plates 12 are adjacent to each other in sequence, and enclose a cylindrical structure.

[0035] The mounting plate 12 is provided with a cooling channel, which runs through the entire mounting plate 12 and extends from the end surface of the first end to the end surface of the second end. In order to allow cooling water to flow into each mounting plate 12, the power combiner 1 is further provided with a water divider plate 14, which is a polygonal plate. In this embodiment, the power combiner 1 is provided with 6 mounting plates 12, so the water divider plate 14 of this embodiment is hexagonal. The water divider plate 14 is snap-fitted and connected to the second ends of the plurality of mounting plates 12.

[0036] Please refer to Figure 3 and Figure 4 The water divider plate 14 is provided with a water divider plate water inlet 141 and 6 water divider plate channels 143. The outer plate surface of the water divider plate 14 is provided with a first blind hole, and the inner plate surface of the water divider plate 14 is provided with 6 second blind holes. The water divider plate water inlet 141 is formed by the first blind hole. The water divider plate channels 143 are arranged inside the water divider plate 14. One end of the 6 water divider plate channels 143 is connected to the bottom of the above-mentioned first blind hole, and the other end extends toward the 6 sides of the water divider plate 14 and is respectively connected to the bottom of the corresponding second blind hole, so that the second blind hole becomes the water outlet of the water divider plate 14. Each second blind hole is respectively connected to the cooling channel on the corresponding mounting plate 12.

[0037] In order to realize water return, six water return channels 172 are arranged on the fixed plate 15, and the six water return channels 172 are arranged inside the fixed plate 15. A blind hole is arranged on the plate surface of the fixed plate 15. One end of the six water return channels 172 is connected to the cooling channel of the corresponding mounting plate 12, and the other end is connected to the bottom of the blind hole of the fixed plate 15. A water return pipe 16 is arranged inside the cylindrical structure surrounded by multiple mounting plates 12, and one end of the water return pipe 16 is connected to the blind hole of the fixed plate 15, and the other end is connected to the water outlet on the water distribution plate 14. The water return pipe 16 adopts a metal hollow pipe, or a flexible hose can also be used.

[0038] During specific use, the hydraulic pump is connected to the water inlet 141 of the water distribution plate through a water supply pipe. The cooling water is divided into multiple branches through the water distribution plate channel 143 and respectively introduced into the cooling channel of each mounting plate 12, and then converges into the return pipe 16 through the return channel 172 of the fixed plate 15, and finally flows out through the outlet of the water distribution plate 14 to another pipe.

[0039] It should be noted that in other embodiments, the water distribution plate 14 may not be provided. In this case, the water supply pipes may be directly connected to the cooling channel of each mounting plate 12. Alternatively, the return water channel 172 may not be provided on the fixing plate 15. In this case, the water outlet of the cooling channel of the mounting plate 12 may be provided on the inner side of the mounting plate 12; and the multiple return water pipes 16 may be respectively connected to the water outlet of the cooling channel of the mounting plate 12. Alternatively, the number of mounting plates 12 may also be 4 or 8, which can be designed according to actual needs.

[0040] Embodiment 2:

[0041] Please refer to Figure 5 and Figure 6 The power combiner 1 provided in this embodiment is basically similar to that in Embodiment 1, except that the arrangement of the plurality of mounting plates 12 is different. The plurality of mounting plates 12 in this embodiment are arranged radially, that is, the first end of the mounting plate 12 is vertically connected to the fixing plate 15, and extends radially along the fixing plate 15.

[0042] Please refer to Figure 7 and Figure 8 A water divider 17 is provided in the middle of the fixed plate 15. The water divider 17 is roughly in the shape of a hexagonal prism. One end of the water divider is fixedly connected to the fixed plate 15, and the other end is provided with a water inlet 174 and a water outlet 175 of the water divider. Specifically, two relatively deep blind holes are provided on the end surface of the water divider 17, and the blind holes extend along the length direction of the water divider 17. One of the blind holes is a water inlet blind hole, and its outer end is the water inlet 174 of the water divider, and the other blind hole is a water outlet blind hole, and its outer end is the water outlet 175 of the water divider.

[0043] The side of the water distributor 17 is provided with a plurality of water outlet channels 171, each of which is connected to the water inlet of the cooling channel of the corresponding mounting plate; the side of the water distributor 17 is also provided with a plurality of water return channels 172. The water inlet and water outlet of the cooling channel of the mounting plate 12 are both provided on the side of the mounting plate 12 facing the water distributor 17.

[0044] Each water return channel 172 is respectively connected to the cooling channel outlet of the corresponding mounting plate 12 ; the bottom of the water inlet blind hole of the water distributor 17 is connected to multiple water outlet channels 171 , and the water outlet blind hole of the water distributor 17 is connected to multiple water return channels 172 .

[0045] Specifically, in order to facilitate processing, the entire water divider 17 adopts a splicing structure. The water divider 17 includes three parts in the length direction, and the middle parts of the two end surfaces at the middle end are respectively provided with circular grooves. After splicing, the two circular groove parts form a closed water storage space, one of which is the water inlet storage space 173, and the other is the water return storage space. The water inlet storage space 173 is respectively connected to multiple water outlet channels 171 and water inlet blind holes, and the water return storage space is respectively connected to multiple water return channels 172 and water return blind holes.

[0046] It should be noted that in other embodiments, the water divider 17 may not be provided, but a water divider plate 14 similar to that in the first embodiment may be used, and a return water channel 172 may also be provided on the fixed plate 15 .

[0047] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A power combiner, characterized in that: include: A power synthesis unit, used for synthesizing multiple microwave signals into one output signal; the power synthesis unit comprises a fixing plate; A plurality of mounting plates, each mounting plate comprising a first end and a second end, wherein the first end of the mounting plate is vertically connected to the plate surface of the fixing plate; a power module is correspondingly arranged on each mounting plate, and the power module is used to generate a microwave signal; Each of the mounting plates is provided with a cooling channel.

2. The power combiner according to claim 1, characterized in that: The side edges of the plurality of mounting plates are adjacent to each other in sequence and enclose a cylindrical structure.

3. The power combiner according to claim 2, characterized in that: Also includes: A water dividing plate, the plate surface of which is connected to the second end of the mounting plate; The water divider plate is provided with a water divider plate water inlet and a plurality of water divider plate channels, the water divider plate water inlet is communicated with the plurality of water divider plate channels, and the plurality of water divider plate channels are respectively communicated with the cooling channels of the plurality of mounting plates.

4. The power combiner according to claim 3, characterized in that: The fixing plate is provided with a plurality of water return channels, each of which is communicated with the cooling channels of the plurality of mounting plates respectively; A return water pipe is arranged inside the cylindrical structure, a water distribution plate outlet is arranged on the water distribution plate, the multiple return water channels intersect and are connected to one end of the return water pipe, and the other end of the return water pipe is connected to the water distribution plate outlet.

5. The power combiner according to claim 3, characterized in that: The water inlet of the cooling channel is arranged on the end surface of the first end of the mounting plate; the water outlet of the cooling channel is arranged on the end surface of the first end of the mounting plate.

6. The power combiner according to claim 1, characterized in that: The plurality of mounting plates are radially arranged around the center of the fixing plate.

7. The power combiner according to claim 6, characterized in that: It also includes a water divider, one end of which is connected to the fixing plate, and the other end of which is provided with a water inlet and a water outlet of the water divider; The side of the water distributor is provided with a plurality of water outlet channels, each of which is respectively connected to the water inlet of the cooling channel of the corresponding mounting plate; the side of the water distributor is also provided with a plurality of water return channels, each of which is respectively connected to the water outlet of the cooling channel of the corresponding mounting plate; The water inlet of the water distributor is communicated with the multiple water outlet channels, and the water outlet of the water distributor is communicated with the multiple water return channels.

8. The power combiner according to claim 7, characterized in that: The mounting plate is connected to the side of the water distributor through an inner end surface; the water inlet and the water outlet of the cooling channel are both arranged on the inner end surface of the mounting plate.

9. A microwave device, characterized in that: It comprises a rack and the power combiner as described in any one of claims 1 to 8, wherein there are multiple power combiners; and the multiple power combiners are all connected to the rack.

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