A waveguide combiner

Abstract

The utility model relates to a waveguide combiner, comprising a shell, on which at least two input ports for inputting microwaves and an output port for outputting microwaves are arranged, and at least two groups of conductors for synthesizing and transmitting power are arranged in the cavity of the shell, and each group of conductors is connected to its corresponding input port. The utility model is characterized in that: a heat dissipation component for dissipating heat generated by the conductor in the cavity to the outside is provided on the shell, and the heat dissipation component includes a heat dissipation channel for guiding cooling liquid, and correspondingly, the heat dissipation channel has an inlet for the cooling liquid to flow in and an outlet for the cooling liquid to flow out. The utility model has the advantages that: the waveguide combiner has a heat dissipation component arranged on the shell, and the heat dissipation component has a heat dissipation channel for guiding the cooling liquid, which can effectively dissipate the heat generated by the conductor in the cavity to the outside, thereby avoiding excessive internal temperature to reduce the transmission efficiency of the microwave, and even cause damage to the combiner.

Description

Technical Field

[0001] The utility model relates to the technical field of communications, in particular to a high-power waveguide combiner. Background Art

[0002] A combiner is a device used to connect and distribute microwave energy. It can combine two or more microwave signals into one signal to transmit data in different systems. Therefore, it is often used in electronic equipment such as antennas, radars, and wireless communications.

[0003] In recent years, as the transmission power required for communication has become increasingly larger, a combiner has appeared in the prior art, such as the Chinese utility model patent "An X-band high-power 4-way waveguide combiner" with patent number CN202021823245.1 (publication number CN212626000U). Specifically, the combiner is a waveguide combiner that can obtain a high-power output through 4 180-degree phase difference inputs.

[0004] However, although this type of waveguide combiner can have a higher power capacity, it still has a defect, that is, when multiple input ports are input at the same time, the internal temperature of the combiner is easy to rise. When the temperature is too high, the transmission efficiency will be reduced, which will have a negative impact on the function and safety of the device. Therefore, it is necessary to further improve the existing combiner. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a waveguide combiner capable of preventing the internal temperature from being too high in view of the above-mentioned existing technical status.

[0006] The utility model solves the above technical problems by adopting the following technical solution: the waveguide combiner comprises a shell, the shell is provided with at least two input ports for inputting microwaves and an output port for outputting microwaves, and at least two groups of conductors for synthesizing and transmitting power are provided in the cavity of the shell, and each group of the conductors is connected to its corresponding input port;

[0007] It is characterized in that: a heat dissipation component is provided on the shell for dissipating the heat generated by the conductor in the cavity to the outside, and the heat dissipation component includes a heat dissipation channel for guiding the coolant. Correspondingly, the heat dissipation channel has an inlet for the coolant to flow in and an outlet for the coolant to flow out.

[0008] In order to enable the heat dissipation assembly to fully dissipate the heat generated by the conductors, preferably, the heat dissipation channel includes a first channel extending along the length direction of each group of the conductors, and a plurality of the first channels are arranged along the width direction of each group of the conductors, and correspondingly, the head end and the tail end of two adjacent first channels are fluidly connected through the second channel. This structure can facilitate the heat dissipation channel to more comprehensively correspond to the coverage area of ​​each group of conductors, thereby fully dissipating the heat generated by the conductors.

[0009] In order to form a cavity for the transmission of microwaves and to facilitate the assembly of the combiner, preferably, the housing also includes an upper housing and a lower housing that are relatively assembled to form the cavity. With such a design, on the one hand, the split structure can make the processing of the housing simpler and simplify the assembly of the combiner, and on the other hand, the housing can not only protect the conductor, but the cavity is also conducive to the transmission of microwaves.

[0010] In order to facilitate the processing and manufacturing of the heat dissipation component, preferably, the heat dissipation component is a heat dissipation plate that fits with the lower shell. Designing the heat dissipation component as a heat dissipation plate that fits with the lower shell is to facilitate the independent processing of the heat dissipation plate, which is relatively simple, and the heat dissipation plate fits with the lower shell, which is sufficient to ensure the heat dissipation effect. Of course, according to actual needs, the heat dissipation component and the lower shell can also be designed as an integrated structure.

[0011] In order to facilitate the synthesis and output of microwaves, preferably, the upper shell and the lower shell are partially recessed inward at positions corresponding to the output port, thereby dividing the cavity into a first cavity and a second cavity, and a through hole for the output port to pass through is formed between the first cavity and the second cavity. With this design, the output port is located alone in the second cavity, which facilitates the synthesis and output of microwaves.

[0012] In order to dissipate the heat generated by the output port and facilitate the synthesis and output of microwaves, preferably, an L-shaped converter is further provided in the second cavity, and the output port is connected to the lower housing through the converter. The converter can be selected from components such as a step impedance converter, which can facilitate the synthesis and output of microwaves on the one hand, and can also conduct the heat generated by the output port to the lower housing on the other hand, thereby achieving the function of dissipating the heat generated by the output port.

[0013] Furthermore, in order to facilitate connection with other devices, preferably, an output connector is installed at a position of the upper shell corresponding to the second cavity. The output connector can be a component such as a radio frequency head.

[0014] In order to prevent the conductor from fitting closely with the shell and interfering with the transmission of microwaves, preferably, a connector is provided in the first cavity, and a connecting portion for connecting the conductor is provided in the middle of the connector, and the connecting portion is respectively kept at a preset distance from the upper shell and the lower shell. Such a design is based on the consideration that if the conductor fits completely with the shell, it will be detrimental to the conduction of microwaves and may cause the shell to accumulate heat.

[0015] Furthermore, in order to fully connect each group of conductors, preferably, each group of conductors is provided with at least two connecting members arranged along the length direction.

[0016] In order to further group the conductors, preferably, the lower shell partially extends upward to form a partition, thereby dividing the first cavity into at least two sub-cavities, and the conductors of each group are distributed in each sub-cavity. With such a design, when there are many groups of conductors, they can be further grouped to achieve secondary synthesis, thereby reducing the pressure on the output port.

[0017] The "fluid communication" referred to in the present invention refers to the spatial position relationship between two parts or parts (hereinafter collectively referred to as the first part and the second part), that is, the fluid (gas, liquid or a mixture of the two) can flow from the first part along the flow path or / and be transported to the second part. The first part and the second part can be directly connected, or the first part and the second part can be indirectly connected through at least one third party. The third party can be a fluid channel such as a pipe, channel, duct, guide member, hole, groove, etc., or it can be a chamber allowing fluid to flow through, or a combination of the above.

[0018] Compared with the prior art, the advantages of the utility model are: the waveguide combiner has a heat dissipation component arranged on the shell, and the heat dissipation component has a heat dissipation channel for guiding the cooling liquid, which can effectively dissipate the heat generated by the conductor in the cavity to the outside, thereby avoiding the internal temperature from being too high to reduce the transmission efficiency of the microwave and even cause damage to the combiner. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the combiner in the embodiment of the utility model;

[0020] Figure 2 This is a schematic diagram of the exploded structure of the combiner in the embodiment of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the heat dissipation assembly in the embodiment of the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the second cavity in the embodiment of the utility model;

[0023] Figure 5 This is a schematic structural diagram of the second cavity at another angle in an embodiment of the utility model;

[0024] Figure 6 This is a schematic diagram of the structure of the combiner and the connector in the embodiment of the utility model;

[0025] Figure 7 It is a schematic diagram of the structure of the conductor and the lower shell in the embodiment of the utility model. DETAILED DESCRIPTION

[0026] The present invention is further described in detail below in conjunction with specific embodiments.

[0027] like Figures 1 to 7 As shown in FIG. , it is a preferred embodiment of the present utility model. Figure 1 , Figure 2 As shown, the waveguide combiner in this embodiment includes a housing 1, on which at least two input ports 21 for inputting microwaves and an output port 22 for outputting microwaves are provided, and at least two groups of conductors 2 for synthesizing and transmitting power are provided in the cavity 11 of the housing 1, and each group of conductors 2 is connected to its corresponding input port 21. A heat dissipation component 3 for dissipating the heat generated by the conductors 2 in the cavity 11 to the outside is provided on the housing 1, and the heat dissipation component 3 includes a heat dissipation channel 31 for guiding the cooling liquid, and correspondingly, the heat dissipation channel 31 has an inlet 32 ​​for the cooling liquid to flow in and an outlet 33 for the cooling liquid to flow out. In order to enable the heat dissipation component 3 to fully dissipate the heat generated by the conductor 2, as shown in FIG. Figure 3 As shown, the heat dissipation channel 31 includes a first channel 311 extending along the length direction of each group of conductors 1, and a plurality of the first channels 311 are arranged along the width direction of each group of conductors 2, and correspondingly, the head end and the tail end of two adjacent first channels 311 are fluidly connected through the second channel 312. The dotted arrows marked in the figure are the direction of the coolant flow, and this structure can facilitate the heat dissipation channel 31 to more comprehensively correspond to the coverage area of ​​each group of conductors 2, thereby fully dissipating the heat generated by each group of conductors 2.

[0028] Furthermore, in order to form a cavity 11 to facilitate the transmission of microwaves and the assembly of the combiner, the shell 1 in this embodiment also includes an upper shell 12 and a lower shell 13 that are relatively combined to form a cavity 1. With such a design, on the one hand, the split structure can make the processing of the shell 1 simpler and simplify the assembly of the combiner. On the other hand, the shell 1 can not only protect the conductor 2, but the cavity 11 is also conducive to the transmission of microwaves. And in order to facilitate the processing and manufacturing of the heat dissipation component 3, the heat dissipation component 3 in this embodiment is a heat sink that fits with the lower shell 13. Designing the heat dissipation component 3 as a heat sink that fits with the lower shell 13 is relatively simple, which can facilitate the separate processing of the heat sink, and the heat sink fits with the lower shell 13, which is sufficient to ensure the heat dissipation effect.

[0029] In order to facilitate the synthesis and output of microwaves, Figure 4 , Figure 5 As shown, the upper shell 12 and the lower shell 13 in this embodiment are partially recessed at the positions corresponding to the output port 22, thereby dividing the cavity 11 into a first cavity 111 and a second cavity 112, and a through hole 113 for the output port 22 to pass through is formed between the first cavity 111 and the second cavity 112. In order to dissipate the heat generated by the output port 22 and facilitate the synthesis and output of microwaves, an L-shaped converter 4 is also provided in the second cavity 112 in this embodiment, and the output port 22 is connected to the lower shell 13 through the converter 4. On the one hand, the converter 4 has the function of facilitating the synthesis and output of microwaves, and on the other hand, it can also conduct the heat generated by the output port 22 to the lower shell 13, thereby achieving the function of dissipating the heat generated by the output port 22. The converter 4 in this embodiment is a step impedance converter. In order to facilitate the connection with other devices, an output connector 5 is also installed at the position of the upper shell 12 corresponding to the second cavity 112. The output connector 5 in this embodiment is a radio frequency head.

[0030] In addition, in order to prevent the conductor 2 from being attached to the housing 1 and interfering with the transmission of microwaves, see Figure 6 In this embodiment, a connector 14 is provided in the first cavity 111. A connecting portion 141 for connecting the conductor 2 is provided in the middle of the connector 14. The connecting portion 141 is respectively provided with a preset distance from the upper shell 12 and the lower shell 13. This design is based on the consideration that if the conductor 2 is completely attached to the shell 1, it will be detrimental to the conduction of microwaves and may cause the shell 1 to accumulate heat. Furthermore, in order to fully connect each group of conductors 2, such as Figure 7As shown, each group of conductors 2 is arranged along the length direction with at least two connectors 14. In order to further group each group of conductors 2, the lower shell 13 in this embodiment partially extends upward to form a partition 131, thereby dividing the first cavity 111 into at least two sub-cavities 114, and each group of conductors 2 is distributed in each sub-cavity 114. With such a design, when the number of groups of conductors 2 is large, they can be further grouped to achieve secondary synthesis, thereby reducing the pressure of the output port 22. In this embodiment, there are nine groups of conductors 2 and three sub-cavities 114, and each sub-cavity 114 is divided into three groups of conductors 2.

Claims

1. A waveguide combiner, comprising a housing (1), the housing (1) being provided with at least two input ports (21) for inputting microwaves and an output port (22) for outputting microwaves, and at least two groups of conductors (2) for combining and transmitting power being provided in a cavity (11) of the housing (1), each group of the conductors (2) being connected to its corresponding input port (21); Features: The shell (1) is provided with a heat dissipation component (3) for dissipating heat generated by the conductor (2) in the cavity (11) to the outside, and the heat dissipation component (3) includes a heat dissipation channel (31) for guiding cooling liquid, and correspondingly, the heat dissipation channel (31) has an inlet (32) for the cooling liquid to flow in and an outlet (33) for the cooling liquid to flow out.

2. The waveguide combiner according to claim 1, characterized in that: The heat dissipation channel (31) comprises a first channel (311) extending along the length direction of each group of the conductors (2), and a plurality of the first channels (311) are arranged along the width direction of each group of the conductors (2), and correspondingly, the head end and the tail end of two adjacent first channels (311) are fluidically connected via a second channel (312).

3. The waveguide combiner according to claim 2, characterized in that: The housing (1) further comprises an upper housing (12) and a lower housing (13) which are relatively combined to form the cavity (11).

4. The waveguide combiner according to claim 3, characterized in that: The heat dissipation component (3) is a heat dissipation plate that fits the lower shell (13).

5. The waveguide combiner according to claim 3 or 4, characterized in that: The upper shell (12) and the lower shell (13) are partially recessed inward at positions corresponding to the output port (22), thereby dividing the cavity (11) into a first cavity (111) and a second cavity (112); a through hole (113) is formed between the first cavity (111) and the second cavity (112) for the output port (22) to pass through.

6. The waveguide combiner according to claim 5, characterized in that: An L-shaped converter (4) is also provided in the second cavity (112), and the output port (22) is connected to the lower housing (13) via the converter (4).

7. The waveguide combiner according to claim 5, characterized in that: An output connector (5) is installed at a position of the upper shell (12) corresponding to the second cavity (112).

8. The waveguide combiner according to claim 6 or 7, characterized in that: A connecting piece (14) is provided in the first cavity (111), a connecting portion (141) for connecting the conductor (2) is provided in the middle of the connecting piece (14), and a preset distance is maintained between the connecting portion (141) and the upper shell (12) and the lower shell (13), respectively.

9. The waveguide combiner according to claim 8, characterized in that: Each group of the conductors (2) is provided with at least two connecting members (14) arranged along the length direction.

10. The waveguide combiner according to claim 9, characterized in that: The lower shell (13) partially extends upward to form a partition (131), thereby dividing the first cavity (111) into at least two sub-cavities (114), and each group of the conductors (2) is distributed in each of the sub-cavities (114).

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