Liquid cooling heat dissipation tool for microwave solid-state power amplifier

Abstract

The utility model relates to the technical field of liquid cooling heat dissipation, in particular to a liquid cooling heat dissipation tool for a microwave solid-state power amplifier. The radiator comprises a water segregator, a water combiner and at least two heat dissipation plates connected between the water segregator and the water combiner in parallel, the two ends of a liquid cooling channel of each heat dissipation plate are communicated with the water segregator and the water combiner through hoses respectively, and an independent heat dissipation area is formed by the plate face of each heat dissipation plate. According to the utility model, the design and processing are simple, uniform heat dissipation can be realized, and adaptive heat dissipation layout change can be carried out according to the adjustment of a test scheme.

Description

TECHNICAL FIELD

[0001] The utility model relates to liquid cooling heat dissipation technical field, concretely is a kind of microwave solid-state power amplifier liquid cooling heat dissipation tool. BACKGROUND

[0002] Microwave solid-state power amplifier is the key component of microwave transmitter system, with the development of GaAs, GaN semiconductor chip technology, microwave solid-state power amplifier output power is more and more big, the heat loss generated by system is also more and more high, and the heat dissipation demand of heat sink is continuously improved.

[0003] In product verification stage, microwave power device test needs heat dissipation tool to dissipate heat, to ensure that power device does not burn due to thermal failure and cause loss when testing, and the commonly used liquid cooling test tool mostly includes independent water channel design and water distribution type water channel design:

[0004] 1, independent water channel design mostly as the text of the name of a kind of water-cooled heat sink of probe station test bare chip power amplifier of Chinese patent publication No. CN219350216U records, is provided with a cooling flow channel cavity, a plurality of copper carrier plate mounting stations are arranged above the cooling flow channel cavity. Of course, in actual design, the independent water channel of one flow channel cavity needs to be determined according to the layout of each power device. Obviously, when the cooling liquid flows in the structure of the independent water channel, the cooling liquid flows through the lower part of each power device in turn to cool the power device. However, the cooling liquid will cool the second power device after the first cooling power device transmits heat to the cooling liquid, so the second cooling power device is not as good as the first power device in heat dissipation. By analogy, the cooling effect of each power device is different, and the heat dissipation effect of the power device cooled later is worse, and there is the problem of uneven heat dissipation of each power device.

[0005] 2, water distribution type water channel design mostly as the text of the name of multiple flow channel type high-efficiency heat dissipation water-cooled row of Chinese patent publication No. CN112414164A records, is provided with shunt groove and water collecting tank, and a plurality of parallel water channels connected with shunt groove and water collecting tank. Of course, in actual design, different parallel water channel direction also needs to be determined according to the layout of each power device. The scheme of the parallel water channel ensures that each power device has an independent water channel when the liquid cooling plate is liquid, and solves the problem of uneven heat dissipation of power device. However, in this scheme, since the shunt groove, water collecting tank and parallel water channel are integrated in the cold plate, the design and processing are complex, and only expensive vacuum brazing processing can be used, and the processing success rate is low, and it is easy to be scrapped.

[0006] On the basis of the above, the water channel of the liquid cooling tool is designed according to the layout of the power device in the corresponding test scheme, when the test scheme changes, the tool cannot be used again, which causes a large amount of resource waste, and therefore needs to be solved urgently. Practical new type content

[0007] In order to avoid and overcome the technical problems existing in the prior art, the utility model provides a kind of microwave solid-state power amplifier liquid cooling heat dissipation tool, not only simple design and processing, but also can realize uniform heat dissipation, simultaneously, it can also be adapted to the heat dissipation layout change according to the adjustment of test scheme.

[0008] To achieve the above object, the utility model provides the following technical scheme:

[0009] A kind of microwave solid-state power amplifier liquid cooling heat dissipation tool, including water distributor, water collector and at least two heat dissipation plates connected in parallel between the two, the liquid cooling passage of each heat dissipation plate is communicated with water distributor and water collector respectively by hose, and independent heat dissipation area is formed by the plate face of each heat dissipation plate.

[0010] As a further scheme of the utility model: at least two partitions are installed in the inner cavity of the liquid cooling passage, the partitions form cooling fins, and the partitions are arranged along the flow direction of the cooling liquid in the liquid cooling passage to separate the inner cavity of the liquid cooling passage to form at least two parallel micro-flow channels, and the widths of the at least two micro-flow channels are different.

[0011] As a further scheme of the utility model: the micro-flow channels are arranged as at least three, and the width of the middle micro-flow channel is greater than the width of the edge micro-flow channel in the viewing angle along the flow direction of the cooling liquid.

[0012] As a further scheme of the utility model: the partitions are straight strips or wavy.

[0013] As a further scheme of the utility model: at least two connector pipes connected with the hoses are installed on the water distributor and the water collector, a one-way blocking member is arranged at each connector pipe, an unlocking portion is fixed to the installation end of the hose connected with the connector pipe, the one-way blocking member has a blocking state of elastically blocking the connector pipe in normal state and an open state of being unlocked by the unlocking portion after the hose is connected with the connector pipe.

[0014] As a further scheme of the utility model: the water distributor and the water collector are long strip structures, the connector pipes are arranged on the front side plates of the water distributor and the water collector, and the rear side plates of the water distributor and the water collector are detachable structures, and the one-way blocking members are installed on the inner plate surfaces of the rear side plates.

[0015] As a further embodiment of this utility model: the one-way sealing component includes a telescopic rod installed on the rear side plate, a spring sleeved on the telescopic rod, and a sealing plate installed at the end of the telescopic rod by the spring to compress and seal the inner end of the connector tube.

[0016] As a further embodiment of this utility model: the unlocking part includes a rigid connector that is assembled with the connector tube. An L-shaped guide rod is installed on the rigid connector. During the connection between the rigid connector and the connector tube, the vertical end of the guide rod generates a pushing action that pushes the sealing plate to separate from the inner end of the connector tube.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. Compared to the traditional method of creating multiple heat dissipation zones on a large plate, this application divides the large plate into multiple independent heat dissipation plates, significantly reducing the difficulty of heat dissipation plate manufacturing. Furthermore, each heat dissipation plate's liquid cooling channel is connected to a distributor and a collector via flexible hoses at both ends. Therefore, after adjusting the power unit's testing scheme, the number of heat dissipation plates can be increased or decreased, and their position and layout adjusted, avoiding the problem of the original integrated plate becoming unusable due to design changes, thus preventing significant resource waste.

[0019] 2. The liquid cooling channel cavity is divided by a partition into at least two microchannels of different widths. This ensures that the coolant flow velocity in the wider microchannel is greater than that in the narrower microchannel. Consequently, the surface of the heat sink directly above the widest microchannel forms a primary heat dissipation zone, while the surface directly above the narrowest microchannel forms a secondary heat dissipation zone. This achieves zoning of the heat sink's surface for efficient heat dissipation. Therefore, in practical implementation, the position of the power devices on the heat sink can be adjusted according to their heat generation to ensure uniform heat dissipation.

[0020] 3. After the hose and connector are connected, the one-way sealing element automatically releases its sealing state via the unlocking mechanism, allowing the hose to connect with the distributor and concentrator. After the hose and connector are disconnected, the one-way sealing element automatically re-enters the flexible sealing state of the connector, eliminating the need for manual re-sealing of the connector after hose disassembly. In practice, the number of connectors can exceed the number of heat sinks in a standard test plan, providing connection points for newly added heat sinks after modifications to the test plan.

[0021] 4、The water distributor and the water combiner are long strip structures, the joint pipe is arranged on the front side plate of the water distributor and the water combiner, and the rear side plate of the water distributor and the water combiner is a detachable structure, the one-way blocking piece is installed on the inner plate surface of the rear side plate, and one-time rapid installation of all one-way blocking pieces can be realized. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the utility model.

[0023] Figure 2 It is an internal structure schematic diagram of the heat dissipation plate in the utility model.

[0024] Figure 3 It is Figure 2 It is a local enlarged structure schematic diagram of A in the utility model.

[0025] Figure 4 It is a structure schematic diagram of the joint pipe and the one-way blocking piece in the utility model.

[0026] In the drawing: 10, water distributor; 20, water combiner; 30, heat dissipation plate; 31, liquid cooling channel; 32, partition plate; 33, micro through-flow channel; 40, hose; 41, hard joint; 42, lead-through rod; 50, one-way blocking piece; 51, blocking plate; 52, telescopic rod; 53, spring; 60, joint pipe; a, power device. DETAILED DESCRIPTION

[0027] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0028] For the convenience of understanding, the specific structure and working mode of the utility model are described further as follows in combination with the drawings:

[0029] The specific structure of the utility model refers to Figures 1-4As shown, the main structure thereof includes a water distributor 10, a water collector 20 and at least two heat sinks 30 connected in parallel between the two, and the plate surface of each heat sink 30 forms an independent heat dissipation area. This makes the heat dissipation areas formed by each heat sink 30 independent of each other, ensuring uniform heat dissipation of each power device a; at the same time, compared with the traditional method of opening multiple heat dissipation areas on a large plate body, the present application divides the large plate body into multiple independent heat sinks 30, which significantly reduces the difficulty of processing the heat sink 30. In addition, the liquid cooling channel 31 of each heat sink 30 is communicated with the water distributor 10 and the water collector 20 at both ends through the hose 40, respectively. Therefore, after adjusting the test scheme of the power device, the number of heat sinks 30 can be increased or decreased, and the position layout of the heat sink 30 can be adjusted, avoiding the problem that the original integrated plate cannot be used due to the change of the design scheme, thereby avoiding a large amount of resource waste.

[0030] On the basis of the above, Figure 2 and Figure 3 As shown, the present application also optimizes the structure of the liquid cooling channel 31 of the heat sink 30. Specifically, at least two partitions 32 are installed in the inner cavity of the liquid cooling channel 31, and the partitions 32 form heat dissipation fins, which increase the heat exchange area between the cooling liquid and the heat sink 30, thereby improving the heat exchange effect of the heat sink 30. The partitions 32 are arranged along the flow direction of the cooling liquid in the liquid cooling channel 31 to separate the inner cavity of the liquid cooling channel 31 to form at least two parallel micro-flow channels 33, and the widths of the at least two micro-flow channels 33 are different. The arrangement of the at least two micro-flow channels 33 with different widths makes the flow rate of the cooling liquid in the micro-flow channel 33 with a larger width greater than that in the micro-flow channel 33 with a smaller width, thereby making the plate surface of the heat sink 30 located directly above the micro-flow channel 33 with the largest width form a first-level heat dissipation area, and the plate surface located directly above the micro-flow channel 33 with a smaller width form a second-level heat dissipation area (the heat dissipation efficiency of the first-level heat dissipation area is higher than that of the second-level heat dissipation area). Of course, according to the number of micro-flow channels 33, a third-level heat dissipation area or even a fourth-level heat dissipation area can also be formed, and the number of each level of heat dissipation area can be set to more than one according to actual needs, thereby realizing the zoning of the heat dissipation efficiency of the plate surface of the heat sink 30. Therefore, in actual implementation, the position of the power device a on the plate surface of the heat sink 30 can be adjusted according to the heat generation of the power device a to ensure the uniformity of heat dissipation of the power device a.

[0031] In actual implementation, as shown in Figure 1 Most of the power devices a are installed in the middle part of the heat sink 30, so the main heat generation area is often concentrated directly above the middle part of the heat sink 30. As shown in Figure 3As shown, therefore, in the present application, the inner cavity of the liquid cooling channel 31 is divided to form at least three parallel micro-flow channels 33, and in the perspective of the flow direction of the cooling liquid, the width of the middle micro-flow channel 33 is greater than the width of the edge micro-flow channel 33; in particular, one or two micro-flow channels 33 in the middle are preferably the widest, and the width of the micro-flow channels 33 gradually decreases towards the two side edges.

[0032] Further, the partition plate 32 is not limited to a straight strip structure, and in actual implementation, in order to increase the stroke of the micro-flow channel 33, the partition plate 32 can also be provided in a wave shape, or even a W shape or an irregular special-shaped structure.

[0033] On the basis of the above, Figure 4 As shown, the water distributor 10 and the water collector 20 are each provided with at least two joint pipes 60 connected with the hose 40, and the one-way blocking piece 50 is arranged at each joint pipe 60. The installation end of the joint pipe 60 connected with the hose 40 is fixed with an unlocking part, and the one-way blocking piece 50 has a normal elastic blocking state of blocking the joint pipe 60 and an open state of being unlocked by the unlocking part after the hose 40 is connected with the joint pipe 60. Thus, after the hose 40 is connected with the joint pipe 60, the normal elastic blocking state of the one-way blocking piece 50 can be automatically released by the unlocking part, so that the hose 40 is in communication with the water distributor 10 and the water collector 20. After the hose 40 is detached from the joint pipe 60, the one-way blocking piece 50 is automatically in the normal elastic blocking state of blocking the joint pipe 60, and manual blocking of the joint pipe 60 is not required after the hose 40 is detached. In actual implementation, the number of joint pipes 60 can be greater than the number of heat dissipation plates 30 in the conventional test scheme, so as to provide a connection station for the connection of the newly added heat dissipation plate 30 after the test scheme is modified.

[0034] Further, as shown, Figure 4 The water distributor 10 and the water collector 20 are both in a long strip structure, the joint pipes 60 are arranged on the front side plates of the water distributor 10 and the water collector 20, and the rear side plates of the water distributor 10 and the water collector 20 are in a detachable structure, and the one-way blocking piece 50 is installed on the inner plate surface of the rear side plate, so that all the one-way blocking pieces 50 can be quickly installed at one time. In addition, the one-way blocking piece 50 is distributed outside the joint pipe 60, and does not increase the resistance in the joint pipe 60.

[0035] In particular, as shown, Figure 4As shown, the one-way blocking piece 50 includes a telescopic rod 52 mounted on the rear side plate, a spring 53 is sleeved on the telescopic rod 52, and a blocking plate 51 is mounted at the end of the telescopic rod 52 and is extruded by the spring 53 and blocks the inner end of the joint pipe 60. The telescopic rod 52 guides the sliding direction of the blocking plate 51, and the spring 53 provides elastic extrusion force, so that the blocking plate 51 blocks the inner end of the joint pipe 60. In actual implementation, the one-way blocking piece 50 can also adopt the form of a torsional spring driving the blocking plate 51 to rotate to block the joint pipe 60. In addition, the one-way blocking piece 50 can also be distributed inside the joint pipe 60 to form a one-way air valve structure like a tire of a vehicle wheel. Further, to ensure the blocking effect of the blocking plate 51, a rubber sealing gasket can be arranged between the blocking plate 51 and the joint pipe 60.

[0036] On the basis of the above, Figure 4 As shown, the unlocking part includes a hard joint 41 assembled with the joint pipe 60, and an L-shaped through rod 42 is mounted on the hard joint 41. During the connection of the hard joint 41 and the joint pipe 60, the vertical section end of the through rod 42 generates a pushing action to push the blocking plate 51 away from the inner end of the joint pipe 60. The connection mode of the hard joint 41 and the joint pipe 60 ensures the stability of the connection with the joint pipe 60, and the L-shaped through rod 42 reduces the flow damping in the hose 40 as much as possible.

[0037] Of course, for those skilled in the art, the present application is not limited to the details of the above exemplary embodiments, but also includes the same or similar structures that can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be considered as limiting the claims involved.

[0038] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.

[0039] The technical, shape and structure parts not described in detail in the present application are known technologies.

Claims

1. A microwave solid-state power amplifier liquid cooling heat dissipation tool, characterized in that, The device comprises a water distributor (10), a water collector (20) and at least two radiators (30) connected in parallel between the water distributor (10) and the water collector (20), the liquid cooling channel (31) of each radiator (30) is communicated with the water distributor (10) and the water collector (20) through a hose (40) at both ends, and the plate surface of each radiator (30) forms an independent cooling area.

2. The liquid cooling heat dissipation tooling for a microwave solid-state power amplifier of claim 1, wherein, The inner cavity of the liquid cooling channel (31) is provided with at least two partitions (32), the partitions (32) form radiating fins, the partitions (32) are arranged along the flow direction of the cooling liquid in the liquid cooling channel (31) to separate the inner cavity of the liquid cooling channel (31) to form at least two parallel micro flow channels (33), and the widths of the at least two micro flow channels (33) are different.

3. The liquid cooling heat dissipation tooling for a microwave solid-state power amplifier of claim 2, wherein, The micro flow channels (33) are provided as at least three, and the width of the middle micro flow channel (33) is greater than the width of the edge micro flow channel (33) in the visual angle along the flow direction of the cooling liquid.

4. The liquid cooling heat dissipation tooling for a microwave solid-state power amplifier of claim 2, wherein, The partitions (32) are straight strips or wavy shapes.

5. The liquid cooling heat dissipation tool for a microwave solid-state power amplifier according to any one of claims 1-4, characterized in that, The water distributor (10) and the water collector (20) are provided with at least two joint pipes (60) connected with the hoses (40), each joint pipe (60) is provided with a one-way sealing member (50) at each position, the mounting end of the hose (40) connected with the joint pipe (60) is fixed with an unlocking part, the one-way sealing member (50) has a sealing state of elastically sealing the joint pipe (60) in a normal state and an open state unlocked by the unlocking part after the hose (40) is connected with the joint pipe (60).

6. The liquid cooling heat dissipation tooling for a microwave solid-state power amplifier of claim 5, wherein, The water distributor (10) and the water collector (20) are long strip structures, the joint pipes (60) are arranged on the front side plates of the water distributor (10) and the water collector (20), and the rear side plates of the water distributor (10) and the water collector (20) are detachable structures, and the one-way sealing members (50) are mounted on the inner plate surfaces of the rear side plates.

7. The liquid cooling heat dissipation tooling for a microwave solid-state power amplifier of claim 6, wherein, The one-way sealing member (50) comprises a telescopic rod (52) mounted on the rear side plate, a spring (53) sleeved on the telescopic rod (52), and a sealing plate (51) mounted at the end of the telescopic rod (52) and pressed by the spring (53) to seal the inner end of the joint pipe (60).

8. The liquid cooling heat dissipation tooling for a microwave solid-state power amplifier of claim 7, wherein, The unlocking part comprises a hard joint (41) assembled with the joint pipe (60), and an L-shaped through rod (42) mounted on the hard joint (41), in the process of connecting the hard joint (41) with the joint pipe (60), the vertical section end of the through rod (42) generates a pushing action to separate the sealing plate (51) from the inner end of the joint pipe (60).

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