Novel variable flow channel battery liquid cooling plate

Abstract

The invention discloses a novel variable flow channel liquid cooling plate applied to an automobile power battery and an energy storage battery. The variable flow channel liquid cooling plate cooling equipment is applied to battery cooling and comprises a plate cooling mechanism, a plate cooling mechanism, a plate cooling mechanism and a plate cooling mechanism, the valve mechanism is arranged above the cold plate mechanism; the locking mechanism is arranged in the valve mechanism; the locking mechanism is used for fixing the valve mechanism after the valve mechanism enters a corresponding working condition; the valve mechanism is matched with the cold plate mechanism with six linear runners arranged side by side left and right to achieve switching of runner types. The optimal flow channel form suitable for the current target can be switched under different targets such as heating or cooling of the battery, the heating and cooling efficiency of the liquid cooling plate on the battery can be remarkably improved, and the required energy consumption is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of heat dissipation of batteries. More specifically, the present invention relates to a novel variable flow channel liquid cooling plate applied to a battery (automotive power battery, energy storage battery, etc.). Background Art

[0002] Batteries are increasingly used in the fields of automobiles, energy storage, etc. Ensuring that the battery works within its operating temperature can greatly improve the battery's capacity, service life and working efficiency. The flow channel design of the liquid cooling plate determines its performance. The design of the traditional liquid cooling plate can often only achieve the optimal value in one aspect such as temperature difference, pressure drop, and maximum temperature, and its flow channel cannot be changed after being determined. It is difficult to adapt to the increasingly complex working conditions of the battery. The single-channel serpentine liquid cooling plate has advantages in battery temperature control, but the heat generated by the battery is not large under low load, and the minimum working pressure requirement of the liquid cooling plate is high, which will cause energy loss; and for the serious heating of the battery under high load conditions, the multi-channel U-shaped liquid cooling plate can effectively reduce the pressure drop, but its cooling capacity is not enough to provide a good heat dissipation environment for the battery.

[0003] Therefore, it is necessary to provide a liquid cooling plate to overcome the above-mentioned defects. Summary of the invention

[0004] One object of the present invention is to provide a liquid cooling plate, which can solve the problem that traditional cooling plates are difficult to adapt to complex working conditions of batteries, and has good adaptability to batteries under different working conditions. According to one aspect of the present invention, a liquid cooling plate is provided, comprising: Cold plate mechanism; a valve mechanism disposed above the cold plate mechanism; A locking mechanism is arranged inside the valve mechanism; wherein the locking mechanism is used to fix the valve mechanism after it enters a corresponding working condition.

[0005] Preferably, the cold plate mechanism comprises a first flow channel, a second flow channel, a third flow channel, a fourth flow channel, a fifth flow channel and a sixth flow channel; the flow channels are arranged side by side on the left and right, wherein the first flow channel and the sixth flow channel are connected to an inlet and an outlet respectively.

[0006] Preferably, the cold plate mechanism comprises a first partition plate, a second partition plate, a third partition plate, a fourth partition plate and a fifth partition plate, and the partition plates are arranged side by side on the left and right and are disposed between the two flow channels.

[0007] Preferably, the cold plate mechanism comprises a first through hole; wherein the number of the first through holes is more than 4, and they are symmetrically arranged one on each side of the third partition plate, and the first partition plate and the fifth partition plate are close to the inlet and outlet side.

[0008] Preferably, the valve mechanism comprises an electromagnet; wherein, the number of the electromagnets is more than 8, and they are arranged in pairs front to back in parallel, and each electromagnet inner ring is provided with an empty slot.

[0009] Preferably, the valve mechanism comprises a blocking valve; wherein the blocking valve is provided with a receiving groove for accommodating the electromagnet, and a guide column is provided in the receiving groove to match with the hollow groove of the electromagnet.

[0010] Preferably, the valve mechanism comprises a spring; characterised in that the valve mechanism comprises a spring, and the spring is arranged in the inner space of the guide column.

[0011] Preferably, the valve mechanism comprises a sealing membrane; wherein the top of the sealing membrane is bonded to the top of the barrier valve, and the bottom is provided with a rectangular skirt which is bonded to the outer area of ​​the cold plate through hole.

[0012] Preferably, the valve mechanism comprises a accommodating chamber; wherein, a cavity for accommodating the electromagnet is provided in the accommodating chamber, the opening side of the cavity is welded to the cold plate, and more than two through holes are provided near the closed side for supplying energy to the electromagnet, and a sealing mechanism is provided.

[0013] Preferably, the locking mechanism comprises a spring leaf, a slider and a guide groove; wherein the number of the spring leaves is more than 16, which are arranged on the empty groove of the inner ring of the electromagnet on the left and right sides, one end of the spring leaf is connected to the electromagnet, and the other end is connected to the slider. The slider is matched with the guide groove one by one, and the guide groove is arranged on the outside of the guide column.

[0014] The present invention can switch the optimal flow channel shape suitable for the current goal under different goals such as battery heating or cooling, which can significantly improve the heating and cooling efficiency of the liquid cooling plate on the battery and reduce the required energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the liquid cooling plate of the present invention; Figure 2 It is a schematic diagram of the cold plate mechanism in the present invention; Figure 3 It is a schematic diagram of the valve mechanism in the present invention; Figure 4 It is a structural schematic diagram of the valve in the present invention; Figure 5 It is a structural schematic diagram of the locking mechanism in the present invention; Figure 6 , 7 Schematic diagram of flow channel switching of the present invention.

[0017] 10. Cold plate mechanism; 101. Inlet; 102. Outlet; 103. First through hole; 104. Blocking plate; 105. Upper plate; 106. Lower plate; 11. Flow channel; 111. First flow channel; 112. Second flow channel; 113. Third flow channel; 114. Fourth flow channel; 115. Fifth flow channel; 116. Sixth flow channel; 12. Partition; 121. First partition; 122. Second partition; 123. Third partition; 124. Fourth partition; 125. Fifth partition; 20. Valve mechanism; 204. Accommodating chamber; 211. Electromagnet; 212. Spring; 213. Guide column; 221. Blocking valve; 231. Sealing film; 232. Sealing ring; 30. Locking mechanism; 301. Reed; 302. Slider; 303. Guide groove. DETAILED DESCRIPTION

[0018] The present invention is further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0019] In the description of the present invention, it should be noted that the terms "front", "rear", "above", "below", "upper end", "lower end", "two ends", "distributed in parallel", "symmetrically distributed", etc. indicate orientations or positional relationships that are relative positional relationships between components in a certain specific posture (as shown in the accompanying drawings). They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0020] In the description of the present invention, it is to be understood that the terms "first", "second", "third" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first", "second", "third" may explicitly or implicitly include at least one of the features. In addition, the terms "including", "having", "arranged", "arranged" and any variations thereof are intended to cover but not limited to a process, method, system, product of a series of steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products or devices.

[0021] In addition to the above, it is still necessary to emphasize that the reference to "embodiment" in this document means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0022] Combination Figure 1-4 As shown, this embodiment provides a novel variable flow channel liquid cooling plate applied to batteries (automotive power batteries, energy storage batteries, etc.), characterized in that it includes: Cold plate mechanism 10; It should be noted that the cold plate mechanism 10 shown in the figure includes an inlet 101 and an outlet 102; wherein, the number of the inlet 101 and the outlet 102 is 1, but in some other embodiments it is not limited to 1.

[0023] In some embodiments, the inlet 101 and the outlet 102 are arranged at different ends or are arranged on the side panels.

[0024] It should be noted that the cold plate mechanism 10 shown in the figure includes flow channels 11; wherein the number of the flow channels 11 is 6, but in some other embodiments it is not limited to 6.

[0025] In some embodiments, the flow channel 11 is in a U-shape, an S-shape, or other shapes.

[0026] It should be noted that the cold plate mechanism 10 shown in the figure includes partitions 12; wherein the number of the partitions 12 is 5, but in some other embodiments it is not limited to 5.

[0027] It should be noted that the cold plate mechanism 10 shown in the figure includes first through holes 103; wherein the number of the first through holes 103 is 4, but in some other embodiments it is not limited to 4.

[0028] In some embodiments, the first through hole 103 is in a diamond, circular or other shape, and is disposed at the upper end of the liquid cooling plate.

[0029] It should be noted that the cold plate mechanism 10 shown in the figure includes a blocking plate 104 ; wherein, the number of the blocking plates is 2, which are arranged at the front and rear sides of the cold plate mechanism 10 to close the openings on both sides of the cold plate mechanism 10 .

[0030] It should be noted that the cold plate mechanism 10 shown in the figure includes an upper plate 105 and a lower plate 106; wherein the lower plate 106 is provided with a partition 12 and a flow channel 11, and the upper plate 105 is provided with an inlet 101 and an outlet 102, which are connected up and down and cooperate with a blocking plate to form a sealed cavity.

[0031] Valve mechanism 20; It should be noted that the valve mechanism 20 shown in the figure includes a receiving chamber 204; wherein the receiving chamber 204 is provided at the first through hole 103 and is connected to the cold plate outside the cold plate.

[0032] It should be noted that the valve mechanism 20 shown in the figure also includes an electromagnet 211; wherein the bottom of the electromagnet 211 is connected to the bottom of the inner side of the accommodating chamber 204, a spring 212 is provided in the center of the electromagnet 211, the bottom of the spring 212 is connected to the electromagnet 211, and the upper end is provided inside the guide column 213 and connected thereto.

[0033] It should be further explained that the main function of the electromagnet 211 is to adsorb the blocking valve 221. When the working state needs to be switched, the electromagnet 211 adsorbs the blocking valve 221 and cooperates with the locking mechanism 30 to complete the switching of the liquid cooling plate working state.

[0034] It should be noted that the valve mechanism 20 shown in the figure further includes a barrier valve 221 ; wherein the top of the barrier valve 221 is connected to the sealing membrane 231 .

[0035] It should be further explained that the blocking valve 221 mainly supports the sealing film 231 and connects the sealing film 231 to the electromagnet 211 and the spring 212. In the blocking state, the sealing film 231 is lifted into place by the spring 212 and then fixed by the locking mechanism 30. In the passage state, the sealing film 231 is activated by the electromagnet 211 and then fixed by the locking mechanism 30.

[0036] It should be noted that the valve mechanism 20 shown in the figure also includes a sealing membrane 231; wherein the top of the sealing membrane 231 is connected to the blocking valve 221, and the bottom rectangular skirt is connected to the liquid cooling plate within the accommodating cavity 204 after passing through the first through hole 103.

[0037] It should be further explained that, regarding the sealing film 231, its main function is to block the flow channels after the blocking valve 221 enters the blocking state, and at the same time isolate the valve mechanism 20 from the cold plate to play a sealing role; when in the passage state, the side skirt of the sealing film 231 can be compressed and placed in the gap between the first through hole 103 and the blocking valve 221.

[0038] It can be seen from the above that the valve mechanism 20 provided in the embodiment of the present application can switch the combination of flow channels.

[0039] Specifically, the valve mechanism 20 controls the lifting and lowering of the barrier valve 221 through the cooperation of the electromagnet 211, the spring 212 and the locking mechanism 30, and then completes the switching of the flow path through the supporting effect of the barrier valve 221 on the sealing film 231.

[0040] Locking mechanism 30; It should be noted that the locking mechanism 30 shown in the figure includes a spring leaf 301 ; wherein one end of the spring leaf is connected to the electromagnet 211 , and the other end of the spring leaf is connected to the slider 302 .

[0041] It should be noted that the locking mechanism 30 shown in the figure includes a guide groove 303 ; wherein the guide groove 303 is provided on the guide column 213 .

[0042] It should be further explained that the main function of the guide groove 303 is to enable the slider 302 to move in the guide groove 303 in a clockwise direction; when the valve mechanism 20 is in a blocking state, the slider 302 is at the bottom of the guide groove 303; when the valve mechanism 20 is in a passage state, the slider 302 is at the obtuse angle at the top of the guide groove.

[0043] It can be seen from the above that the locking mechanism 30 provided in the embodiment of the present application can longitudinally fix the blocking valve 221 that has reached the corresponding position.

[0044] In combination with the cold plate mechanism 10, the valve mechanism 20, and the locking mechanism 30, the specific working principle of a new variable flow channel liquid cold plate applied to power batteries and energy storage batteries is as follows: When the flow channel needs to be isolated, the electromagnet 211 is activated. When the slider 302 slides from the obtuse angle at the top of the guide groove 303 to the upper right acute angle, the electromagnet 211 is closed, and the blocking valve 221 moves upward under the action of the spring 212. At this time, due to the obstruction of the slope boss in the guide groove 302, the slider 302 can only slide to the bottom along the right side of the guide groove 303. At this time, the blocking valve 221 is at the highest point, and the sealing membrane 231 is fully extended due to the support of the blocking valve 221. At this time, the valve mechanism 20 is in a blocking state.

[0045] When the valve mechanism 20 needs to switch to the passage state, the electromagnet 211 is activated again, the blocking valve 221 moves downward due to the adsorption effect, the slider 302 moves to the upper left acute angle along the left side of the guide groove 303, and the electromagnet 211 is closed; the blocking valve 221 moves upward again due to the action of the spring 212, and the slider 302 slides to the top obtuse angle along the guide groove 303. At this time, due to the action of the spring 212 and the slope boss in the guide groove 303, the slider 302 cannot continue to move. At this time, the locking mechanism 30 restricts the blocking valve 221 to the passage state.

[0046] The above is a cycle of switching the working state. If the working state needs to be switched again, the working state of the valve mechanism 20 can be switched by repeatedly starting and stopping the electromagnet 211 for a certain period of time. The switching of the flow channel type of the flow channel plate can be achieved by switching the isolation state and the passage state of the blocking valve 221 provided at each first through hole 103.

[0047] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation modes, and they can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A new type of variable flow channel liquid cooling plate used in automotive power batteries and energy storage batteries, characterized in that: include: Cold plate mechanism; a valve mechanism disposed above the cold plate mechanism; A locking mechanism is arranged inside the valve mechanism; wherein the locking mechanism is used to fix the valve mechanism after it enters a corresponding working condition.

2. The cold plate mechanism according to claim 1, characterized in that: The cold plate mechanism comprises a first flow channel, a second flow channel, a third flow channel, a fourth flow channel, a fifth flow channel and a sixth flow channel; the flow channels are arranged side by side on the left and right, wherein the first flow channel and the sixth flow channel are connected to an inlet and an outlet respectively.

3. The cold plate mechanism according to claim 2, characterized in that: The cold plate mechanism comprises a first baffle, a second baffle, a third baffle, a fourth baffle and a fifth baffle, and the baffles are arranged side by side on the left and right and are arranged between two flow channels.

4. The cold plate mechanism according to claim 3, characterized in that: The cold plate mechanism comprises a first through hole; wherein the number of the first through holes is more than 4, and they are symmetrically arranged one on each side of the third partition plate, and the first partition plate and the fifth partition plate are close to the inlet and outlet side.

5. The valve mechanism according to claim 1, characterized in that: The valve mechanism comprises an electromagnet; wherein, the number of the electromagnets is more than 8, and they are arranged in pairs in a front-to-back manner, and an empty slot is provided in the inner ring of each electromagnet.

6. The valve mechanism according to claim 5, characterized in that: The valve mechanism comprises a blocking valve; wherein the blocking valve is provided with a receiving groove for accommodating the electromagnet, and a guide column is provided in the receiving groove to match with the hollow groove of the electromagnet.

7. The valve mechanism according to claim 6, characterized in that: The valve mechanism comprises a spring, and the spring is arranged in the inner space of the guide column.

8. The valve mechanism according to claim 7, characterized in that: The valve mechanism comprises a sealing membrane, wherein the top of the sealing membrane is bonded to the top of the barrier valve, and the bottom is provided with a rectangular skirt which is bonded to the outer area of ​​the cold plate through hole.

9. The valve mechanism according to claim 8, characterized in that: The valve mechanism includes a receiving chamber; wherein, A cavity for accommodating the electromagnet is provided in the accommodating cavity. The opening side of the cavity is welded to the cold plate, and more than two through holes are provided near the closed side for supplying energy to the electromagnet, and a sealing mechanism is provided.

10. The locking mechanism according to claim 1, characterized in that: The locking mechanism includes a spring leaf, a slider and a guide groove; wherein the number of the spring leaves is more than 16, which are arranged on the empty groove of the inner ring of the electromagnet in a left-right manner, one end of the spring leaf is connected to the electromagnet, and the other end is connected to the slider, and the slider is matched with the guide groove one by one. The guide groove is arranged on the outside of the guide column.

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