CN216960582U - Heat abstractor and power module, vehicle that have it - Google Patents
Heat abstractor and power module, vehicle that have it Download PDFInfo
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- CN216960582U CN216960582U CN202122636635.9U CN202122636635U CN216960582U CN 216960582 U CN216960582 U CN 216960582U CN 202122636635 U CN202122636635 U CN 202122636635U CN 216960582 U CN216960582 U CN 216960582U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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Abstract
The utility model discloses a heat dissipation device, a power module with the heat dissipation device and a vehicle with the heat dissipation device, wherein the heat dissipation device comprises: the heat dissipation shell is provided with an inlet and an outlet, a plurality of first ribs and a plurality of second ribs are arranged on a first inner wall and a second inner wall which are opposite to each other in the heat dissipation shell respectively, the first ribs and the second ribs are arranged in a staggered mode to limit a heat dissipation flow channel, two ends of the heat dissipation flow channel are communicated with the inlet and the outlet respectively, and a heat conducting medium is suitable for flowing along the height direction of the first ribs and the second ribs in the heat dissipation flow channel. According to the heat dissipation device, on one hand, the heat exchange efficiency of a heat-conducting medium such as cooling liquid can be improved, so that the heat dissipation efficiency of the heat dissipation device can be improved; on the other hand, the uniformity of heat-conducting media such as cooling liquid distributed in the heat dissipation flow channel is improved, so that the uniformity of the temperature of the power module can be improved, and the reliability of the power module can be improved.
Description
Technical Field
The utility model relates to the technical field of heat dissipation, in particular to a heat dissipation device, a power module with the heat dissipation device and a vehicle with the heat dissipation device.
Background
The power module plays an important role in a finished automobile control system, and has the characteristics of high switching speed, high alternating current-direct current conversion rate, large overcurrent and the like, so that the overall temperature of the power module is increased due to switching loss and on-state loss in the frequent switching process, generated heat can be taken away in time if a proper cooling mode cannot be adopted in the normal use process, the temperature of the power module is reduced, the risk of burning out of the power module can be caused, the power module fails, and further the serious control failure problem is caused.
In the correlation technique, because the resistance when the coolant liquid in the radiator of power module flows is great, and the coolant liquid forms the vortex easily in the radiator to lead to the heat transfer effect of coolant liquid relatively poor, reduced the heat exchange efficiency of coolant liquid, and then can not reduce the temperature of power module effectively, make power module have the risk of being burnt out.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to solving at least one of the problems of the prior art. Therefore, an object of the present invention is to provide a heat dissipation device, which can improve the heat exchange efficiency of a heat transfer medium such as a cooling liquid, thereby improving the heat dissipation efficiency of the heat dissipation device.
Another objective of the present invention is to provide a power module using the heat dissipation device.
It is a further object of the present invention to provide a vehicle employing the above power module.
According to the heat sink of the embodiment of the first aspect of the present invention, the heat sink includes: the heat dissipation casing, be formed with import and export on the heat dissipation casing, be equipped with a plurality of first ribs and a plurality of second rib on relative first inner wall and the second inner wall each other in the heat dissipation casing respectively, it is a plurality of first rib and a plurality of the second rib is crisscross to be arranged in order to inject the heat dissipation runner, the both ends of heat dissipation runner respectively with the import with export intercommunication, heat-conducting medium are in be suitable for in the heat dissipation runner to follow first rib with the width direction of second rib flows.
According to the heat dissipation device provided by the embodiment of the utility model, the heat dissipation flow channel is defined by arranging the plurality of first ribs and the plurality of second ribs in a staggered manner, and the heat conduction medium is suitable for flowing along the width direction of the first ribs and the second ribs in the heat dissipation flow channel. Therefore, on one hand, the heat exchange efficiency of a heat-conducting medium such as cooling liquid can be improved, and therefore the heat dissipation efficiency of the heat dissipation device can be improved; on the other hand, the uniformity of heat-conducting media such as cooling liquid distributed in the heat dissipation flow channel is improved, so that the uniformity of the temperature of the power module can be improved, and the reliability of the power module can be improved.
According to some embodiments of the utility model, a thickness of each of the first ribs gradually decreases in a direction away from the first inner wall; the thickness of each second rib is gradually reduced along the direction far away from the second inner wall.
According to some embodiments of the utility model, each of the first ribs has a height H1Wherein, the H1Satisfies the following conditions: h is not less than 5mm1Less than or equal to 8 mm; each second rib has a height H2Wherein, the H2Satisfies the following conditions: h is not less than 5mm2≤8mm。
According to some embodiments of the utility model, each of the first ribs has a thickness W1The minimum distance between two adjacent first ribs is L1Wherein, the W1、L1Satisfies the following conditions: l is more than or equal to 0.81/W1Less than or equal to 1.5; each of the second ribs has a thickness W2The minimum distance between two adjacent second ribs is L2Wherein, the W2、L2Satisfies the following conditions: l is more than or equal to 0.82/W2≤1.5。
According to some embodiments of the utility model, the heat-dissipating housing comprises: a housing, one side of which is open, the inlet and the outlet being formed on a side wall of the housing, the first ribs being provided on a bottom wall inside the housing; the cover body is arranged on the side of the shell, and the second ribs are arranged on the surface of one side, facing the center of the shell, of the cover body.
According to some embodiments of the utility model, each of the first ribs extends in a width direction of the housing; each of the second ribs extends in a width direction of the cover.
According to some embodiments of the utility model, a boss is provided on the bottom wall in the housing, and the plurality of first ribs are provided on the boss.
According to some embodiments of the utility model, a side of the boss adjacent the inlet extends obliquely in a direction towards the cover, in a direction away from the inlet; and/or the side of the boss adjacent the outlet extends obliquely in a direction towards the cover, in a direction away from the outlet.
According to some embodiments of the utility model, the inlet is opposite to both the first rib and the boss, and the outlet is opposite to both the first rib and the boss.
A power module according to an embodiment of the second aspect of the present invention includes the heat dissipation device according to the above-described embodiment of the first aspect of the present invention.
A vehicle according to an embodiment of the third aspect of the utility model includes a power module according to the embodiment of the second aspect of the utility model described above.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic view of a heat dissipation device according to an embodiment of the utility model;
FIG. 2 is a cross-sectional view of the heat dissipation device shown in FIG. 1;
FIG. 3 is a schematic view of a cover of a heat dissipation device according to an embodiment of the utility model;
FIG. 4 is a side view of the cover shown in FIG. 3;
FIG. 5 is a schematic view of a housing of a heat dissipation device according to an embodiment of the utility model;
fig. 6 is a cross-sectional view of the housing shown in fig. 5.
Reference numerals:
100: a heat sink;
1: a heat dissipating housing; 11: a housing; 111: a first rib; 112: an inlet;
113: an outlet; 114: a boss; 12: a cover body; 121: and a second rib.
Detailed Description
A heat sink 100 according to an embodiment of the first aspect of the present invention is described below with reference to fig. 1-6. The heat sink 100 may be applied to a power module (not shown). In the following description of the present application, the heat dissipation device 100 is applied to a power module as an example.
As shown in fig. 1 to 6, a heat dissipating device 100 according to an embodiment of the first aspect of the present invention includes a heat dissipating housing 1.
Specifically, the heat dissipation housing 1 is formed with a liquid inlet 112 and a liquid outlet 113, and a plurality of first ribs 111 and a plurality of second ribs 121 are respectively disposed on a first inner wall and a second inner wall opposite to each other in the heat dissipation housing 1, and in the description of the present invention, "a plurality" means two or more. The plurality of first ribs 111 and the plurality of second ribs 121 are arranged in a staggered manner to define a heat dissipation flow channel, two ends of the heat dissipation flow channel are respectively communicated with the liquid inlet 112 and the liquid outlet 113, and the heat conducting medium is adapted to flow along the width direction (for example, the up-down direction in fig. 2) of the first ribs 111 and the second ribs 121 in the heat dissipation flow channel.
For example, in the example of fig. 1 and 2, a receiving cavity is formed in the heat dissipation housing 1, a plurality of first ribs 111 may be provided at regular intervals on a first inner wall of the heat dissipation housing 1, and each of the plurality of first ribs 111 extends upward in a direction toward the center of the receiving cavity, a plurality of second ribs 121 may be provided at regular intervals on a second inner wall of the heat dissipation housing 1, and each of the plurality of second ribs 121 extends downward in a direction toward the center of the receiving cavity; alternatively, the plurality of first ribs 111 may be disposed on the second inner wall of the heat dissipation housing 1 at uneven intervals, and the plurality of second ribs 121 may be disposed on the second inner wall of the heat dissipation housing 1 at uneven intervals. Each second rib 121 is located between two adjacent first ribs 111 to make the shape of the heat dissipation flow channel wavy. When the heat dissipation device 100 is applied to a power module, and the heat dissipation device 100 works, a heat-conducting medium, such as a cooling liquid, may flow into the accommodating cavity through the inlet 112, and flow along the heat dissipation flow channel in the accommodating cavity and exchange heat with the plurality of first ribs 111 and the plurality of second ribs 121, and finally, the heat-conducting medium, such as the cooling liquid, after heat exchange flows out through the outlet 113, so that the temperature of the power module may be reduced, and further, the risk of burning out the power module may be reduced. Wherein, the flow direction of the heat-conducting medium such as cooling liquid in the accommodating cavity is distributed in a wave manner. Therefore, compared with the conventional power module, on one hand, the area of the heat-conducting medium such as the cooling liquid for washing the first ribs 111 and the second ribs 121 is increased, so that the heat exchange efficiency of the heat-conducting medium such as the cooling liquid can be improved, and the heat dissipation efficiency of the heat dissipation device 100 can be improved; on the other hand, the heat-conducting medium such as cooling liquid can be prevented from forming eddy currents in the heat-radiating flow channel, the uniformity of the heat-conducting medium such as cooling liquid in the heat-radiating flow channel is improved, the uniformity of the temperature of the power module can be improved, the improvement of the uniformity of the temperature of the power module is beneficial to improving the flow equalization of the power module, and the reliability of the power module can be improved.
According to the heat dissipation device 100 of the embodiment of the utility model, the plurality of first ribs 111 and the plurality of second ribs 121 are arranged in a staggered manner to define the heat dissipation flow channel, and the heat transfer medium is adapted to flow along the width direction of the first ribs 111 and the second ribs 121 in the heat dissipation flow channel. Therefore, on one hand, the heat exchange efficiency of the heat-conducting medium such as the cooling liquid can be improved, and thus the heat dissipation efficiency of the heat dissipation device 100 can be improved; on the other hand, the uniformity of heat-conducting media such as cooling liquid distributed in the heat dissipation flow channel is improved, so that the uniformity of the temperature of the power module can be improved, and the reliability of the power module can be improved.
According to some embodiments of the present invention, the thickness (e.g., left-right direction in fig. 2) of each first rib 111 is gradually decreased in a direction away from the first inner wall. The thickness of each second rib 121 is gradually reduced in a direction away from the second inner wall. Referring to fig. 2, the thickness of each first rib 111 is gradually reduced in a bottom-up direction. The thickness of each second rib 121 gradually decreases in the top-to-bottom direction. Therefore, the thermal resistance of the first ribs 111 and the second ribs 121 can be reduced, so that the heat exchange effect of the heat-conducting medium such as the cooling liquid can be improved, and the heat dissipation effect of the heat dissipation device 100 can be further improved.
In some alternative embodiments, each first rib 111 has a height (e.g., up-down direction in fig. 2) H1Wherein H is1Satisfies the following conditions: h is not less than 5mm1Less than or equal to 8 mm. When H is present1When the height of each first rib 111 is less than 5mm, the contact area between the heat-conducting medium such as cooling liquid and the first rib 111 is small, the heat exchange efficiency of the heat-conducting medium such as cooling liquid is affected, and the heat dissipation effect of the heat dissipation device 100 is affected; when H is present1In the case of > 8mm, the height of each first rib 111 is large, and the heat transfer medium such as the cooling liquid is not easy to flow to the outlet 113 beyond the first rib 111, which may cause uneven distribution of the heat transfer medium such as the cooling liquid in the heat dissipation flow channel, and may reduce the flow rate of the heat transfer medium such as the cooling liquid, thereby reducing the heat dissipation efficiency of the heat dissipation device 100. Thereby, by making H1H is less than or equal to 5mm1The contact area between the heat-conducting medium such as the cooling liquid and the first ribs 111 can be increased, the heat-conducting medium such as the cooling liquid can smoothly flow to the outlets 113, and the heat-conducting medium such as the cooling liquid can be uniformly distributed in the heat dissipation flow channel, so that the heat dissipation efficiency of the heat dissipation device 100 can be effectively improved.
As shown in fig. 4, eachThe second ribs 121 have a height H2Wherein H is2Satisfies the following conditions: h is not less than 5mm2Less than or equal to 8 mm. When H is present2When the height of each first rib 111 is less than 5mm, the contact area between the heat-conducting medium such as cooling liquid and the second rib 121 is smaller, the heat exchange efficiency of the heat-conducting medium such as cooling liquid is affected, and the heat dissipation effect of the heat dissipation device 100 is affected; when H is present2When the height of each second rib 121 is greater than 8mm, the heat dissipation channel is narrow, and the flow resistance of the heat transfer medium, such as the cooling liquid, may be increased, which may affect the heat dissipation effect of the heat dissipation device 100. Thereby, by making H2H is less than or equal to 5mm2Be less than or equal to 8mm, can increase the area of contact of heat-conducting medium such as coolant liquid and second rib 121, and the heat dissipation runner is more spacious to can reduce the flow resistance of heat-conducting medium such as coolant liquid, and then can guarantee heat abstractor 100's radiating effect effectively.
In some alternative embodiments, as shown in fig. 6, each first rib 111 has a thickness W1The minimum distance between two adjacent first ribs 111 is L1Wherein, W1、L1Satisfies the following conditions: l is more than or equal to 0.81/W1Less than or equal to 1.5. Thereby, by making W1、L1Satisfies the following conditions: l is more than or equal to 0.81/W1Less than or equal to 1.5, can guarantee along the direction from the bottom up, the interval between two adjacent first ribs 111 increases gradually to can increase heat-conducting medium for example the heat transfer area of coolant liquid and first rib 111, and then can guarantee heat abstractor 100's radiating effect, and heat-conducting medium for example the coolant liquid can smoothly flow through a plurality of first ribs 111.
As shown in FIG. 4, each of the second ribs 121 has a thickness W2The minimum distance between two adjacent second ribs 121 is L2Wherein W is2、L2Satisfies the following conditions: l is more than or equal to 0.82/W2Less than or equal to 1.5. Thereby, by making W2、L2Satisfies the following conditions: l is more than or equal to 0.82/W21.5, it can be ensured that the distance between two adjacent second ribs 121 is gradually increased along the direction from top to bottom, thereby increasing the heat transfer medium such as cooling liquid to the second ribs 121The heat exchange area further ensures the heat dissipation effect of the heat dissipation device 100, and the heat transfer medium, such as the cooling liquid, can smoothly flow through the plurality of second ribs 121.
According to some embodiments of the present invention, the heat-dissipating case 1 includes a case 11 and a cover 12, one side of the case 11 is open, an inlet 112 and an outlet 113 are formed on a side wall of the case 11, and a plurality of first ribs 111 are provided on a bottom wall inside the case 11. The cover 12 is provided on the above-mentioned one side of the housing 11, and a plurality of second ribs 121 are provided on a surface of the cover 12 on the side facing the center of the housing 11. For example, in the example of fig. 2-5, the inlet 112 may be formed on a left side wall of the housing 11 and the outlet 113 may be formed on a right side wall of the housing 11. The first ribs 111 are uniformly spaced along the length direction of the bottom wall, and the second ribs 121 are uniformly spaced along the length direction of the cover 12, so that the heat dissipation channel extends along the length direction of the heat dissipation housing 1. Therefore, the inlet 112 and the outlet 113 can be respectively located at two ends of the heat dissipation channel in the length direction, so that a heat transfer medium such as a cooling liquid can smoothly flow through the heat dissipation channel, the heat exchange area between the heat transfer medium such as the cooling liquid and the first rib 111 and the second rib 121 is increased, and the heat dissipation efficiency of the heat dissipation device 100 can be improved.
Further, referring to fig. 3 and 5, each first rib 111 extends in the width direction of the housing 11. Each of the second ribs 121 extends in the width direction of the cover 12. Therefore, the heat exchange area between the heat transfer medium, such as the cooling liquid, and the first ribs 111 and the second ribs 121 can be further increased, and the heat dissipation efficiency of the heat dissipation device 100 is further improved.
In some alternative embodiments, a boss 114 is disposed on the bottom wall in the housing 11, and the first ribs 111 are disposed on the boss 114. Referring to fig. 2, the boss 114 extends in a direction toward the cover 12, and the plurality of first ribs 111 are spaced apart from each other in a length direction (e.g., a left-right direction in fig. 2) of the boss 114. Therefore, by providing the boss 114 on the bottom wall of the housing 11, the distance between the boss 114 and the cover 12 can be shortened, so that the width of the first rib 111 can be reduced, and the processing of the first rib 111 is facilitated.
Further, the side of the boss 114 adjacent to the loading port 112 extends obliquely in a direction toward the lid body 12 toward a direction away from the inlet port 112, and/or the side of the boss 114 adjacent to the outlet port 113 extends obliquely in a direction toward the lid body 12 toward a direction away from the outlet port 113. Referring to fig. 2, in a direction from bottom to top, both left and right sides of the boss 114 extend obliquely upward in a direction toward the center of the boss 114. With such an arrangement, the left side surface and the right side surface of the boss 114 can perform a flow guiding function, so that a heat conducting medium such as a cooling liquid can flow through the heat dissipation flow channel quickly, and the heat dissipation effect of the heat dissipation device 100 is improved. Of course, the present invention is not limited thereto, and one of the left and right side surfaces of the boss 114 may extend obliquely upward in a direction from bottom to top toward the center of the boss 114.
In some alternative embodiments, as shown in FIGS. 2 and 5, the inlet port 112 is opposite to both the first rib 111 and the boss 114, and the outlet port 113 is opposite to both the first rib 111 and the boss 114. Therefore, the heat-conducting medium, such as the cooling liquid, can be ensured to flow through the heat-dissipating runners as much as possible, and the heat-dissipating effect of the heat-dissipating device 100 is further improved.
A power module according to an embodiment of the second aspect of the present invention includes the heat sink 100 according to the above-described embodiment of the first aspect of the present invention.
According to the power module of the embodiment of the utility model, by adopting the heat dissipation device 100, the temperature of the power module can be quickly reduced, the risk of burning out the power module is reduced, and the service life of the power module is prolonged.
A vehicle (not shown) according to an embodiment of the third aspect of the utility model comprises a power module according to an embodiment of the second aspect of the utility model described above.
According to the vehicle provided by the embodiment of the utility model, by adopting the power module, the energy consumption of the vehicle can be effectively reduced, and the market competitiveness of the vehicle is improved.
Other configurations and operations of vehicles according to embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.
In the description of the present invention, it is to be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.
Claims (11)
1. A heat dissipating device, comprising:
the heat dissipation casing, be formed with import and export on the heat dissipation casing, be equipped with a plurality of first ribs and a plurality of second rib on relative first inner wall and the second inner wall each other in the heat dissipation casing respectively, it is a plurality of first rib and a plurality of the second rib is crisscross to be arranged in order to inject the heat dissipation runner, the both ends of heat dissipation runner respectively with the import with export intercommunication, heat-conducting medium are in be suitable for in the heat dissipation runner to follow first rib with the direction of height of second rib flows.
2. The heat dissipating device of claim 1, wherein the thickness of each of the first ribs gradually decreases in a direction away from the first inner wall;
the thickness of each second rib is gradually reduced along the direction far away from the second inner wall.
3. The heat dissipating device of claim 1, wherein each of the first ribs has a height H1, wherein the height H1 satisfies: h1 is more than or equal to 5mm and less than or equal to 8 mm;
each of the second ribs has a height H2, wherein H2 satisfies: h2 is more than or equal to 5mm and less than or equal to 8 mm.
4. The heat dissipating device of claim 1, wherein each of the first ribs has a thickness W1, and a minimum distance between two adjacent first ribs is L1, wherein the W1 and the L1 satisfy: L1/W1 is more than or equal to 0.8 and less than or equal to 1.5;
each second rib has a thickness W2, and a minimum distance between two adjacent second ribs is L2, wherein W2 and L2 satisfy the following conditions: L2/W2 is more than or equal to 0.8 and less than or equal to 1.5.
5. The heat dissipating device of any of claims 1-4, wherein the heat dissipating housing comprises:
a housing, one side of which is open, the inlet and the outlet being formed on a side wall of the housing, the first ribs being provided on a bottom wall inside the housing;
the cover body is arranged on the side of the shell, and the second ribs are arranged on the surface of one side, facing the center of the shell, of the cover body.
6. The heat dissipating device of claim 5, wherein each of the first ribs extends in a width direction of the housing;
each of the second ribs extends in a width direction of the cover.
7. The heat dissipating device of claim 5, wherein a boss is disposed on the bottom wall in the housing, and the first ribs are disposed on the boss.
8. The heat dissipating device of claim 7, wherein the side of the boss adjacent the inlet extends obliquely in a direction toward the cover and in a direction away from the inlet; and/or
The side of the boss adjacent the outlet extends obliquely in a direction towards the cover, in a direction away from the outlet.
9. The heat dissipating device of claim 7, wherein said inlet is opposite to both said first rib and said boss and said outlet is opposite to both said first rib and said boss.
10. A power module characterized by comprising the heat dissipating device according to any one of claims 1 to 9.
11. A vehicle characterized by comprising a power module according to claim 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122636635.9U CN216960582U (en) | 2021-10-29 | 2021-10-29 | Heat abstractor and power module, vehicle that have it |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122636635.9U CN216960582U (en) | 2021-10-29 | 2021-10-29 | Heat abstractor and power module, vehicle that have it |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115776037A (en) * | 2022-11-28 | 2023-03-10 | 重庆师范大学 | Optical rotation adjusting device utilizing liquid metal for heat conduction |
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2021
- 2021-10-29 CN CN202122636635.9U patent/CN216960582U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115776037A (en) * | 2022-11-28 | 2023-03-10 | 重庆师范大学 | Optical rotation adjusting device utilizing liquid metal for heat conduction |
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