TWI854830B - Heat exchanging apparatus - Google Patents

Abstract

A heat exchanging apparatus includes a main body and N contact blocks formed on a head end surface of the main body, where N is a natural number. The main body defines a longitudinal direction, and therein has a multi-turn flow passage, a first arc-shell flow passage and a second arc-shell flow passage. Each contact block therein has a plurality of plate-shell flow passages parallel to each other and parallel to the longitudinal direction. The first arc-shell flow passage and the second arc-shell flow passage respectively communicate with the multi-turn flow passage and the plurality of plate-shell flow passages. A liquid flows into the multi-turn flow passage from an inlet of the multi-turn flow passage, and flows through the first arc-shell flow passage, the plurality of plate-shell flow passages and the second arc-shell flow passage, and flows out from an outlet of the multi-turn flow passage. When the liquid flows through the plurality of plate-shell flow passages, the liquid exchanges heat with the N contact blocks.

Description

Heat exchange device

The present invention relates to a heat exchange device, and in particular to a heat exchange device which provides a contact surface for heat exchange with an object and has high heat exchange performance.

Heat exchange devices are used in many fields, but the heat exchange devices referred to here refer to heat exchange devices that provide a contact surface for heat exchange with an object.

Heat exchange devices that provide a contact surface for heat exchange with an object also have many applications, such as the testing of electronic components and semiconductor components. The contact surface of the heat exchange device contacts the component under test, and high-temperature or low-temperature liquid flows into and out of the heat exchange device to exchange heat with the contacted component under test. In this way, the component under test can be tested at high or low temperatures.

For the prior art of the heat exchange device, please refer to U.S. Patent Publication No. 20190302178 and Figure 1. Figure 1 is a cross-sectional view of the heat exchange device 1 disclosed in U.S. Patent Publication No. 20190302178.

As shown in FIG. 1 , the heat exchange device 1 disclosed in U.S. Patent Publication No. 20190302178 includes a heat block 10. The heat block 10 can be made of a metal material with excellent thermal conductivity. A flow channel 100 for liquid circulation is formed inside the heat block 10. The inlet 1002 and the outlet 1004 of the flow channel 100 are formed on the rear end surface 102 of the heat block 10 and are connected to a temperature adjustment device (not shown in the figure). The heat block 10 defines a longitudinal direction L1, as shown in FIG. 1 . In the flow channel 100, near the front end surface 104 of the heat block 10, a plurality of plate-shell-shaped flow channels 106 are formed that are parallel to each other and parallel to the longitudinal direction L1. There is a structure similar to a heat sink 108 between adjacent plate-shell-shaped flow channels 106. The flow channel 100 is connected to a plurality of plate-shell-shaped flow channels 106. The front end surface 104 serves as a contact surface for heat exchange with the abutting test element.

The heat exchange device 1 shown in FIG1 further includes a first heat transfer plate 12 and a second heat transfer plate 14. The first heat transfer plate 12 covers the front end surface 104 of the heat block 10. The second heat transfer plate 14 covers the front end surface 104 of the heat block 10 via the first heat transfer plate 12. The following will only describe in detail the problems and shortcomings of the structure of the heat block 10 itself, and will not describe the first heat transfer plate 12 and the second heat transfer plate 14 in detail.

The contact portion of the flow channel 100 and the plurality of plate-shell-shaped flow channels 106 has an inflow direction d1. However, the inflow direction d1 is perpendicular to the longitudinal direction L1. This makes it difficult for the liquid newly flowing into the flow channel 100 to replace the liquid that has already flowed into the plurality of plate-shell-shaped flow channels 106, and may even cause the liquid in the plurality of plate-shell-shaped flow channels 106 to stagnate and not flow. This will naturally reduce the heat exchange efficiency of the heat exchange device 1.

Moreover, the liquid newly flowing into the flow channel 100 does not flow into the plate-shell-shaped flow channel 106 at the same time, but flows into a plurality of parallel plate-shell-shaped flow channels 106 in sequence. This naturally results in that the plate-shell-shaped flow channel 106 closer to the outlet 1004 of the flow channel 100 has a worse heat exchange performance of utilizing the fluid.

In addition, the heat exchange device 1 disclosed in U.S. Patent Publication No. 20190302178 is obviously manufactured using traditional machining technology, so its heat block 10 can only be made of metal materials with excellent thermal conductivity, and cannot be made of other materials with higher thermal conductivity coefficients such as ceramics.

Therefore, one technical problem that the present invention aims to solve is to provide a heat exchange device that provides a contact surface for heat exchange with an object and has high heat exchange performance.

According to a preferred specific embodiment of the present invention, a heat exchange device includes a main body and N contact blocks, wherein N is a natural number. The main body has a head end face and a tail end face. The main body defines a longitudinal direction. The main body has a plurality of flow channels, a first arc-shell-shaped flow channel, and a second arc-shell-shaped flow channel therein. The inlet and outlet of the plurality of flow channels are exposed on the main body. N contact blocks are formed on the head end face of the main body. Each contact block has its own contact surface. Each contact block has a plurality of plate-shell-shaped flow channels therein that are parallel to each other and parallel to the longitudinal direction. The first arc-shell-shaped flow channel is respectively connected to the plurality of plate-shell-shaped flow channels of the plurality of flow channels and each contact block. The second arc-shell flow channel is connected to the multiple-circle flow channel and the multiple plate-shell flow channels of each contact block. The liquid flows into the multiple-circle flow channel from the inlet of the multiple-circle flow channel, flows through the first arc-shell flow channel, the multiple plate-shell flow channels, the second arc-shell flow channel, and flows out from the outlet of the multiple-circle flow channel. When the liquid flows through the multiple plate-shell flow channels, the liquid exchanges heat with the N contact blocks.

In a specific embodiment, the first arc-shell-shaped flow channel has an inflow direction. A first angle between the inflow direction of the first arc-shell-shaped flow channel and the longitudinal direction is less than 90 degrees.

In a specific embodiment, the second arc-shell-shaped flow channel has an outflow direction. The second angle between the outflow direction of the second arc-shell-shaped flow channel and the longitudinal direction is greater than 90 degrees.

In a specific embodiment, the first arc-shell-shaped flow channel has a first grid profile.

In a specific embodiment, the second arc-shell-shaped flow channel has a second grid profile.

In a specific embodiment, the first arc-shell-shaped flow channel is connected to the first side of the respective lower end port of each plate-shell-shaped flow channel.

In a specific embodiment, the second arc-shell-shaped flow channel is connected to the second side of the lower port of each plate-shell-shaped flow channel.

In a specific embodiment, the main body also has a side surface adjacent to the tail end surface. The inlet and outlet of the multi-circle flow channel are exposed on the side surface of the main body.

In a specific embodiment, the N contact blocks protrude upward from the head end surface of the main body.

In a specific embodiment, the main body and the N contact blocks can be made of metal material or ceramic material.

Different from the prior art, the heat exchange device according to the present invention has a plurality of plate-shell-shaped flow channels that mainly exchange heat with the contact surface, and the liquid can flow quickly, thereby allowing the heat exchange device according to the present invention to have high heat transfer performance.

The advantages and spirit of the present invention can be further understood through the following detailed description of the invention and the attached drawings.

Please refer to Figures 2, 3, 4 and 5, which schematically depict a heat exchange device 2 according to a preferred specific embodiment of the present invention. Figure 2 schematically depicts a heat exchange device 2 according to a preferred specific embodiment of the present invention in an exterior view. Figure 3 is a partial cross-sectional view of the heat exchange device 2 along line A-A in Figure 2. Figure 4 is a schematic diagram of the flow passage inside the heat exchange device 2 according to a preferred specific embodiment of the present invention. Figure 5 is another schematic diagram of the flow passage inside the heat exchange device 2 according to a preferred specific embodiment of the present invention. It is hereby stated that the flow passages shown in Figures 4 and 5 are depicted with solid lines for clarity, but are not solid structures.

As shown in Fig. 2, Fig. 3, Fig. 4 and Fig. 5, the heat exchange device 2 according to the preferred embodiment of the present invention comprises a main body 20 and N contact blocks 22, wherein N is a natural number. In Fig. 2, two contact blocks 22 are shown as a representative.

As shown in FIGS. 2 and 3 , the main body 20 has a head end face 200 and a tail end face 202. The main body 20 defines a longitudinal direction L2. As shown in FIGS. 4 and 5 , the main body 20 has a multi-circle flow channel 204, a first arc-shell-shaped flow channel 206, and a second arc-shell-shaped flow channel 208 therein. The inlet 2040 and the outlet 2042 of the multi-circle flow channel 204 are exposed on the main body 20. In a specific embodiment, the main body 20 further has a side face 203 adjacent to the tail end face 202. The inlet 2040 and the outlet 2042 of the multi-circle flow channel 204 are exposed on the side face 203 of the main body 20, as shown in FIGS. 2 and 3 . In practical applications, the rear end surface 202 of the main body 20 can be operatively coupled to a power system (eg, a mechanical power system) to withstand an applied external force.

In FIG2 , the inlet pipe 24 is connected to the inlet 2040 of the multi-turn flow channel 204, and the outlet pipe 26 is connected to the outlet 2042 of the multi-turn flow channel 204. The inlet pipe 24 and the outlet pipe 26 are connected to a temperature adjustment device (not shown in the figure).

As shown in FIG2 and FIG3 , N contact blocks 22 are formed on the head end surface 200 of the main body 20. Each contact block 22 has a respective contact surface 220. An object to be heat exchanged with the heat exchange device 2 according to the present invention can abut against the contact surfaces 220 of the N contact blocks 22.

In a specific embodiment, as shown in FIG. 2 and FIG. 3 , N contact blocks 22 protrude upward from the head end surface 200 of the main body 20 .

Each contact block 22 has a plurality of plate-shell-shaped flow channels 222 therein that are parallel to each other and parallel to the longitudinal direction L2. The first arc-shell-shaped flow channel 206 is respectively connected to the multi-circle flow channel 204 and the plurality of plate-shell-shaped flow channels 222 of each contact block 22. The second arc-shell-shaped flow channel 208 is respectively connected to the multi-circle flow channel 204 and the plurality of plate-shell-shaped flow channels 222 of each contact block 22.

The liquid flows into the multi-circle flow channel 204 from the inlet 2040 of the multi-circle flow channel 204, flows through the first arc-shell flow channel 206, the plurality of plate-shell flow channels 222, the second arc-shell flow channel 208, and flows out from the outlet 2042 of the multi-circle flow channel 204. When the liquid flows through the plurality of plate-shell flow channels 222, the liquid exchanges heat with the N contact blocks 22. It is emphasized here that, unlike the prior art, after the liquid flows into the heat exchange device 2 according to the present invention, the liquid flows into the plurality of plate-shell flow channels 222 at the same time, which will not cause the problem of uneven heat exchange in the heat dissipation device 1 of the prior art.

In a specific embodiment, as shown in FIG. 4 , the first arc-shell-shaped flow channel 206 has an inflow direction d2. The first angle between the inflow direction of the first arc-shell-shaped flow channel 206 and the longitudinal direction L2 is less than 90 degrees. It is emphasized here that, unlike the prior art, the inflow direction d2 of the first arc-shell-shaped flow channel 206 is not perpendicular to the longitudinal direction L2. Thus, the liquid in the first arc-shell-shaped flow channel 206 easily flows into the plurality of plate-shell-shaped flow channels 222, thereby improving the heat exchange performance of the heat exchange device 2 according to the present invention.

In a specific embodiment, as shown in FIG. 5 , the second arc-shell-shaped flow channel 208 has an outflow direction d3. The second angle between the outflow direction d3 of the second arc-shell-shaped flow channel 208 and the longitudinal direction L2 is greater than 90 degrees. It is emphasized here that, unlike the prior art, the outflow direction d3 of the second arc-shell-shaped flow channel 208 is not perpendicular to the longitudinal direction L2. Thus, the liquid in the second arc-shell-shaped flow channel 208 can easily flow out of the plurality of plate-shell-shaped flow channels 222, thereby improving the heat exchange performance of the heat exchange device 2 according to the present invention.

In a specific embodiment, as shown in Fig. 4, the first arc-shell-shaped flow channel 206 has a first grid profile. The grid portion of the first grid profile is actually filled with the material of the main body 20, thereby improving the heat exchange performance of the heat exchange device 2 according to the present invention.

In a specific embodiment, as shown in Fig. 5, the second arc-shell-shaped flow channel 208 has a second grid profile. The grid portion of the second grid profile is actually filled with the material of the main body 20, thereby improving the heat exchange performance of the heat exchange device 2 according to the present invention.

In a specific embodiment, the first arc-shell-shaped flow channel 206 is connected to the first side 2222 of the respective lower end 2220 of each plate-shell-shaped flow channel 222 .

In a specific embodiment, the second arc-shell-shaped flow channel 208 is connected to the second side 2224 of the lower end 2220 of each plate-shell-shaped flow channel 222 .

In a specific embodiment, the N contact blocks 22 protrude upward from the head end surface 200 of the main body 20.

In a specific embodiment, the main body 20 and the N contact blocks 22 can be made of metal material or ceramic material. The main body 20 and the N contact blocks 22 can be made by a laminating machine manufacturing process. The main body 20 and the N contact blocks 22 can be first divided into blocks that can be cast and then joined together after casting.

Through the above detailed description of the present invention, it can be clearly understood that the liquid in the plurality of plate-shell-shaped flow channels that mainly exchange heat with the contact surface according to the present invention can flow quickly, thereby allowing the heat exchange device according to the present invention to have high heat transfer performance.

The above detailed description of the preferred specific embodiments is intended to more clearly describe the features and spirit of the present invention, but is not intended to limit the scope of the present invention to the preferred specific embodiments disclosed above. On the contrary, the purpose is to cover various changes and arrangements with equivalents within the scope of the patent application for the present invention. Therefore, the scope of the patent application for the present invention should be interpreted in the broadest sense based on the above description, so as to cover all possible changes and arrangements with equivalents.

1: Heat exchange device 10: Heat block 100: Flow channel 1002: Inlet 1004: Outlet 102: Rear end face 104: Front end face 106: Plate shell-shaped flow channel 108: Heat sink 12: First heat transfer plate 14: Second heat transfer plate 2: Heat exchange device 20: Main body 200: Head end face 202: Tail end face 203: Side face 204: Multi-circle flow channel 2040: Inlet 2042: Outlet 206: First arc shell-shaped flow channel 208: Second arc shell-shaped flow channel 22: Contact block 220: Contact surface 222: Plate shell-shaped flow channel 2220: Lower port 2222: First side 2224: Second side 24: Inlet pipe 26: Outlet pipe L1: Longitudinal direction d1: Inflow direction L2: Longitudinal direction d2: Inflow direction d3: Outflow direction

FIG. 1 is an external view of a heat exchange device of the prior art. FIG. 2 is an external view of a heat exchange device according to a preferred embodiment of the present invention. FIG. 3 is a cross-sectional view of the heat exchange device 1 along line A-A in FIG. 2. FIG. 4 is a schematic diagram of the flow channel inside the heat exchange device according to a preferred embodiment of the present invention. FIG. 5 is another schematic diagram of the flow channel inside the heat exchange device according to a preferred embodiment of the present invention.

204: Multi-circle flow channel

2040:Entrance

2042:Export

206: The first arc shell-shaped flow channel

208: Second arc shell-shaped flow channel

222: Plate shell flow channel

2220: Lower port

2222: First side

2224: Second side

L2: Longitudinal direction

d2: Inflow direction

Claims (8)

A heat exchange device comprises: a main body having a head end face and a tail end face, the main body defining a longitudinal direction, wherein the main body has a multi-circle flow channel, a first arc-shell flow channel and a second arc-shell flow channel therein, an inlet and an outlet of the multi-circle flow channel are exposed on the main body; and N contact blocks formed on the head end face of the main body, each contact block having a respective contact surface, wherein N is a natural number, each contact block having a plurality of plate-shell flow channels therein, the plurality of plate-shell flow channels are parallel to each other and to the longitudinal direction, the first arc-shell flow channel is respectively connected to the multi-circle flow channel and each contact surface. The plurality of plate-shell-shaped flow channels of the contact block, the second arc-shell-shaped flow channel is respectively connected to the multiple-circle flow channels and the plurality of plate-shell-shaped flow channels of each contact block, the first arc-shell-shaped flow channel is connected to a first side of a respective lower port of each plate-shell-shaped flow channel, and the second arc-shell-shaped flow channel is connected to a second side of a respective lower port of each plate-shell-shaped flow channel, wherein a liquid flows into the multiple-circle flow channel from the inlet, and flows through the first arc-shell-shaped flow channel, the plurality of plate-shell-shaped flow channels, the second arc-shell-shaped flow channel in sequence, and flows out from the outlet, when the liquid flows through the plurality of plate-shell-shaped flow channels, the liquid exchanges heat with the N contact blocks. A heat exchange device as described in claim 1, wherein the first arc-shell-shaped flow channel has an inflow direction, and a first angle between the inflow direction and the longitudinal direction is less than 90 degrees. A heat exchange device as described in claim 2, wherein the second arc-shell-shaped flow channel has an outflow direction, and a second angle between the outflow direction and the longitudinal direction is greater than 90 degrees. A heat exchange device as described in claim 3, wherein the first arc-shell-shaped flow channel has a first grid profile. A heat exchange device as described in claim 4, wherein the second arc-shell-shaped flow channel has a second grid profile. The heat exchange device as described in claim 3, wherein the main body also has a side surface, the side surface is adjacent to the tail end surface, and the inlet and the outlet of the multi-circle flow channel are exposed on the side surface of the main body. A heat exchange device as described in claim 3, wherein the N contact blocks protrude upward from the head end surface of the main body. A heat exchange device as described in claim 3, wherein the main body and the N contact blocks are made of a metal material or a ceramic material.

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