Double-sided heat dissipation liquid cooling plate with liquid leakage test

Abstract

The utility model relates to a double-sided heat dissipation liquid cooling plate with a liquid leakage test function, which comprises an upper cover plate, a runner plate and a lower cover plate which are sequentially arranged, a plurality of runners are arranged on one side, close to the upper cover plate pair, of the runner plate, a sealing ring is further clamped between the runner plate and the upper cover plate, the sealing ring is arranged around the runners, and an inflow port and an outflow port are respectively arranged at two ends of each runner. The upper cover plate is provided with a liquid inlet corresponding to the flow inlet, the upper cover plate is provided with a liquid outlet corresponding to the flow outlet, a liquid inlet connector is arranged at the liquid inlet, and a liquid outlet connector is arranged at the liquid outlet. According to the double-sided heat dissipation liquid cooling plate, the sealing rings and the bolts are used for assembling the liquid cooling plate, so that the detachable function can be achieved, the internal corrosion condition of the flow channel can be detected, the flow channel can be effectively prevented from being blocked by compound impurities generated by internal corrosion, and whether the corrosion condition and the corrosion depth of the flow channel meet the structural design requirement or not can be found in advance; the phenomenon of deformation of the liquid cooling plate in the using process is avoided, and the function of detecting internal impurities is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to liquid cooling plate technical field for energy storage, concretely relates to a double -sided heat dissipation liquid cooling plate with leakage test. BACKGROUND

[0002] With the continuous development of science and technology, the demand and requirement of energy storage battery in our country are higher and higher, and heat management plays an important role in power battery, which is directly related to the safety problem of battery pack and whole vehicle, the cooling system in the battery pack has been converted from the traditional air cooling to the liquid cooling device, the heat dissipation power of liquid cooling plate is big, can export the redundant heat generated in the working process of power battery in time, avoids the occurrence of excessive temperature rise, the liquid cooling device on the market has the difficulty of maintenance, cannot see the internal condition of the cooling plate after running for a period of time, the impurities in the cooling plate cannot be removed, resulting in the decline of refrigeration effect or even failure, the working fluid in the cooling plate is not easy to detect, and the refrigeration effect is reduced due to the failure of timely replacement of liquid. SUMMARY

[0003] In order to overcome the shortcomings and deficiencies existing in the prior art, the purpose of the utility model is to provide a double -sided heat dissipation liquid cooling plate with leakage test, which utilizes sealing ring and bolt as sealing piece and fastener, the liquid cooling plate can achieve the function of being detachable, the internal corrosion of flow channel can be detected, the compound impurities caused by internal corrosion are effectively prevented from blocking the flow channel, the corrosion condition of the flow channel is found in advance, whether the corrosion depth meets the structural design requirement, the phenomenon of deformation of the liquid cooling plate in use is avoided, the powder accumulated after the corrosion of the flow channel is found in advance, the flow channel is prevented from being blocked, the battery module thermal runaway phenomenon is caused, and the internal impurity detection function is realized.

[0004] The utility model discloses a double -sided heat dissipation liquid cooling plate with leakage test, including flow channel board, the upper cover plate of setting in the upper end surface of flow channel board, and the lower cover plate of setting in the lower end surface of flow channel board, the side of flow channel board near upper cover plate is equipped with a plurality of flow channels, still sandwiched with sealing ring between flow channel board and upper cover plate, sealing ring is around flow channel setting, both ends of flow channel are equipped with flow inlet and flow outlet respectively, upper cover plate corresponds flow inlet and is equipped with liquid inlet, upper cover plate corresponds flow outlet and is equipped with liquid outlet, liquid inlet is equipped with liquid inlet connector, and liquid inlet connector is communicated with flow inlet, liquid outlet is equipped with liquid outlet connector, and liquid outlet connector is communicated with flow outlet.

[0005] Further, the frame is further sandwiched between the flow channel plate and the lower cover plate, the frame is surrounded by four frame beams connected head to tail, and a plurality of uniformly distributed back beams are additionally arranged in the frame.

[0006] Further, the flow channel plate is provided with a baffle plate for dividing the flow channel plate into multiple flow channels.

[0007] Further, the flow channel is provided with multiple flow separation partitions for enhancing fluid disturbance, which are longitudinally arranged in the flow channel.

[0008] Further, the upper cover plate is provided with a flow expansion part near one side of the flow channel plate, so that the flow channel cavity is widened.

[0009] Further, the upper cover plate is provided with a placing groove corresponding to the sealing ring, and the sealing ring is embedded in the placing groove.

[0010] Further, the upper cover plate, the flow channel plate, the frame and the lower cover plate are all provided with multiple locking holes.

[0011] Further, the upper cover plate, the flow channel plate, the frame and the lower cover plate are fixed together through bolts screwed in the locking holes.

[0012] The double-sided heat dissipation liquid cooling plate of the utility model utilizes a sealing ring and a bolt as a sealing member and a fastener, the liquid cooling plate can achieve a detachable function, the internal corrosion of the flow channel can be detected, the phenomenon of flow channel blockage caused by compound impurities generated by internal corrosion can be effectively prevented, the corrosion condition of the flow channel can be found in advance, whether the corrosion depth meets the structural design requirement can be determined, the phenomenon of deformation of the liquid cooling plate in the use process can be avoided, the powder accumulated after the flow channel is corroded can be found in advance, flow channel blockage can be avoided, the battery module thermal runaway phenomenon can be avoided, and the function of detecting internal impurities can be realized. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is the perspective view of the utility model;

[0014] Figure 2 is the first exploded schematic view of the utility model;

[0015] Figure 3 is the second exploded schematic view of the utility model;

[0016] Figure 4 is the structural schematic view of the flow channel plate.

[0017] The reference signs are: 1-liquid outlet connector, 2-bolt, 3-upper cover plate, 31-liquid inlet, 32-liquid outlet, 33-flow expansion part, 34-placing groove, 4-sealing ring, 5-flow channel plate, 51-flow channel, 52-inlet, 53-outlet, 54-baffle plate, 55-flow separation partition, 7-frame, 71-border beam, 72-back beam, 8-lower cover plate, 9-locking hole, 10-liquid inlet connector. DETAILED DESCRIPTION

[0018] For the convenience of understanding of those skilled in the art, the following will be combined with the embodiments and the accompanying drawings to further describe the present application. Figures 1-4 Further, the content mentioned in the embodiments of the present application is not a limitation of the present application.

[0019] It should be noted that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or indirectly on the other element.

[0020] When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0021] It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0022] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features.

[0023] In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly and specifically limited.

[0024] See Figures 1-4The utility model provides a double -sided heat dissipation liquid cooling plate with leakage test, including flow channel board 5, set up the upper cover plate 3 of flow channel board 5 upper end face, and set up the lower cover plate 8 of flow channel board 5 lower end face, the side of flow channel board 5 is close to the upper cover plate 3 is set up with a plurality of flow channel 51, the flow channel board 5 with upper cover plate 3 between still clamping set up sealing ring 4, sealing ring 4 is set up around flow channel 51, the both ends of flow channel 51 are equipped with flow inlet 52 and flow outlet 53 respectively, the upper cover plate 3 is equipped with liquid inlet 31 with flow inlet 52, the upper cover plate 3 is equipped with liquid outlet 32 with flow outlet 53, the liquid inlet 31 is equipped with liquid inlet connector 10 and the liquid inlet connector 10 is communicated with flow inlet 52, the liquid outlet 32 is equipped with liquid outlet connector 1, and the liquid outlet connector 1 is communicated with flow outlet 53, the upper cover plate 3, flow channel board 5, frame 7 and lower cover plate 8 are all equipped with a plurality of locking holes 9, and the upper cover plate 3, flow channel board 5, frame 7 and lower cover plate 8 are fixed together through bolt 2 of screwing in locking hole 9, the flow channel board 5 is equipped with baffling plate 54, and the flow channel board 5 is divided into a plurality of flow channels 51.

[0025] The double -sided heat dissipation liquid cooling plate of the embodiment utilizes sealing ring 4 and bolt 2 as sealing piece and fastener, and the liquid cooling plate can achieve the function of being detachable, the inside corrosion of flow channel 51 can be detected, the flow channel 51 is effectively prevented from being blocked by compound impurities generated due to internal corrosion, the corrosion of flow channel 51 is found in advance, whether the corrosion depth meets the structural design requirement, the phenomenon of deformation of the liquid cooling plate in the use process is avoided, the powder accumulated after the corrosion of flow channel 51 is found in advance, flow channel 51 is avoided from being blocked, the battery module thermal runaway phenomenon is caused, and the function of detecting internal impurities is realized.

[0026] In addition, the liquid outlet connector 1 and the liquid inlet connector 10 adopt a double-joint connector, and the design adopts a quick connector-CQC connector, one of which is a CQC quick mounting and dismounting interface, and the other is a national standard G1 / 2 threaded interface, which realizes the multi-usage of interface exchange and can also realize the detection of fluid medium detection, and is convenient to ensure sealing and can realize the convenience of quick mounting and dismounting; the upper cover plate 3, the flow channel plate 5, the frame 7 and the lower cover plate 8 are all selected from national standard profiles AL3003-O aluminum materials, and materials with good heat conduction performance are selected, which can better ensure good heat transfer efficiency, and the indirectly contacted liquid medium between the heat transfer substances can avoid chemical reactions such as corrosion of the cold cutting medium on the heat transfer substances. The upper cover plate 3 is cut and adapted to the flow expansion part 33 of the flow channel 51, the total height of the flow channel 51 is increased, the flow of the flow channel 51 is increased, and it is suitable for more flow occasions, and high efficiency and reduced flow resistance functions are realized.

[0027] In the embodiment, the frame 7 is further arranged between the flow channel plate 5 and the lower cover plate 8, the frame 7 is surrounded by four edge frame beams 71 connected end to end, and a plurality of back beams 72 are arranged in the frame 7.

[0028] In the embodiment, a plurality of flow separation plates 55 for enhancing fluid disturbance are arranged in the flow channel 51.

[0029] In the embodiment, the flow expansion part 33 is designed on one side of the upper cover plate 3 close to the flow channel plate 5, so that the cavity of the flow channel 51 is widened, the total height of the flow channel 51 is increased, larger flow is adapted, the overall flow resistance is reduced, more occasions are adapted, and the bolt 2 is designed on the upper cover plate 3 to lock, so that the whole liquid cooling plate can be disassembled, which plays an important role in future operation and service life. The novel structure of the double-sided heat dissipation liquid cooling plate improves the performance of the whole liquid cooling plate, realizes the uniformity of liquid flow, is beneficial to improving the heat dissipation efficiency, and the structure is reliable.

[0030] In the embodiment, the upper cover plate 3 further has a placing groove 34 corresponding to the sealing ring 4 on one side close to the flow channel plate 5, the sealing ring 4 is embedded in the placing groove 34, and the flow channel plate 5 and the upper cover plate 3 are locked and sealed by the bolt 2.

[0031] After the double-sided heat dissipation liquid cooling plate is assembled, a series of finished product basic tests are carried out, such as air tightness test, high temperature resistance test, low temperature resistance test, cold and hot cycle test, salt spray test and the like to verify the reliability, and the specific tests are as follows:

[0032] Air tightness test: dry leakage <2.37 ml / min.

[0033] High temperature resistance test: after the test, the sample piece has no breakage and appearance deformation, and is emptied of the anti-freezing liquid within 10 minutes, 2.5 bar gauge pressure compressed air is introduced into the liquid cooling plate, the pressure maintaining time is 60s, and the gas leakage amount is checked. The leakage amount is 2.01ml / min; (satisfying the requirement 2.37<ml / min).

[0034] Low temperature resistance test: after the test, the sample piece has no breakage and appearance deformation, and is emptied of the anti-freezing liquid within 10 minutes, 2.5 bar gauge pressure compressed air is introduced into the liquid cooling plate, the pressure maintaining time is 60s, and the gas leakage amount is checked. The leakage amount is 1.59ml / min. (satisfying the requirement 2.37<ml / min).

[0035] Cold and hot cycle test: after the test, the sample piece has no breakage and appearance deformation, and is emptied of the anti-freezing liquid within 10 minutes, 2.5 bar gauge pressure compressed air is introduced into the liquid cooling plate, the pressure maintaining time is 60s, and the gas leakage amount is checked. The leakage amount is 1.81ml / min. (satisfying the requirement 2.37<ml / min).

[0036] Salt spray test: after the test, the sample piece has no blistering, no wrinkling, slight discoloration and loss of luster, and satisfies the insulation; the sample surface has no obvious rust spots or corrosion, the sample piece can work normally, and the electrical performance has no loss. There is no breakage and appearance deformation, 2.5 bar gauge pressure compressed air is introduced into the sample piece, the pressure maintaining time is 60s, and the gas leakage amount is checked. The leakage amount is 1.72ml / min. (satisfying the requirement 2.37<ml / min).

[0037] In the embodiment, the above embodiment is a preferred implementation scheme of the utility model, in addition to this, the utility model can be realized in other modes, under the premise of not departing from the utility model concept, any obvious replacement is within the protection scope of the utility model.

Claims

1. A double-sided heat-dissipating liquid cooling plate with leakage test, characterized in that: The utility model relates to a liquid distribution device, comprising a flow channel plate, an upper cover plate arranged on the upper end face of the flow channel plate, and a lower cover plate arranged on the lower end face of the flow channel plate, a plurality of flow channels are arranged on the side of the flow channel plate close to the upper cover plate, a sealing ring is arranged between the flow channel plate and the upper cover plate, the sealing ring is arranged around the flow channel, the two ends of the flow channel are respectively provided with a flow inlet and a flow outlet, the upper cover plate is provided with a liquid inlet corresponding to the flow inlet, the upper cover plate is provided with a liquid outlet corresponding to the flow outlet, a liquid inlet connector is arranged at the liquid inlet and communicates with the flow inlet, a liquid outlet connector is arranged at the liquid outlet and communicates with the flow outlet.

2. The double-sided heat-dissipating liquid cold plate with leakage test of claim 1, wherein: A frame is arranged between the flow channel plate and the lower cover plate, the frame is formed by connecting four edge frame beams end to end, and a plurality of back beams are arranged in the frame.

3. The double-sided heat-dissipating liquid cold plate with leakage test of claim 1, wherein: A baffle plate is arranged in the flow channel plate to divide the flow channel plate into multiple flow channels.

4. The double-sided heat-dissipating liquid cold plate with leakage test of claim 1, wherein: A plurality of flow separation plates are arranged in the flow channel to enhance the disturbance of the fluid.

5. The double-sided heat-dissipating liquid cold plate with leakage test of claim 1, wherein: An expansion part is arranged on the side of the upper cover plate close to the flow channel plate to widen the flow channel cavity.

6. The double-sided heat-dissipating liquid cold plate with leakage test of claim 1, wherein: A receiving groove is arranged on the side of the upper cover plate close to the flow channel plate corresponding to the sealing ring, and the sealing ring is embedded in the receiving groove.

7. The double-sided heat-dissipating liquid cold plate with leakage test of claim 1, wherein: A plurality of locking holes are arranged on the upper cover plate, the flow channel plate, the frame, and the lower cover plate.

8. The double-sided heat-dissipating liquid cold plate with leakage test of claim 7, wherein: The upper cover plate, the flow channel plate, the frame, and the lower cover plate are fixed together by bolts screwed in the locking holes.

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