A new type of variable flow channel battery liquid cooling plate

Abstract

The present invention discloses a new type of variable flow channel liquid cold plate for automotive power batteries and energy storage batteries. The variable flow channel liquid cold plate cooling device is used for battery cooling, wherein the variable flow channel liquid cold plate cooling device includes: a cold plate mechanism; a valve mechanism arranged above the cold plate mechanism; a locking mechanism arranged inside the valve mechanism; the locking mechanism is used to fix the valve mechanism after it enters the corresponding working condition; wherein the valve mechanism cooperates with the cold plate mechanism with six straight flow channels arranged in parallel on the left and right to realize the switching of flow channel types. 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 cold plate on the battery and reduce the required energy consumption.

Description

Technical Field

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

[0002] Batteries are increasingly used in automobiles, energy storage and other fields. Ensuring that batteries operate within their operating temperature can greatly improve their capacity, service life and working efficiency. The flow channel design of the liquid cooling plate determines its performance. The design of traditional liquid cooling plates 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 once determined. It is difficult to adapt to the increasingly complex working conditions of batteries. Single-channel serpentine liquid cooling plates have 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 batteries that generate severe heat under high load, multi-channel U-shaped liquid cooling plates can effectively reduce the pressure drop, but their 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 that can solve the problem that traditional cooling plates are difficult to adapt to the 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:

[0005] Cold plate mechanism;

[0006] a valve mechanism disposed above the cold plate mechanism;

[0007] A locking mechanism is provided inside the valve mechanism; wherein the locking mechanism is used to fix the valve mechanism after it enters a corresponding working condition.

[0008] Preferably, the cold plate mechanism includes 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 the inlet and the outlet respectively.

[0009] Preferably, the cold plate mechanism includes 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.

[0010] Preferably, the cold plate mechanism includes a first through hole; wherein, the number of the first through holes is 4 or more, and they are symmetrically arranged one on each side of the third partition, and the first partition and the fifth partition are close to the inlet and outlet.

[0011] Preferably, the valve mechanism includes 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 each electromagnet has an empty slot in its inner ring.

[0012] 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 the hollow groove of the electromagnet.

[0013] Preferably, the valve mechanism includes a spring; characterized in that the valve mechanism includes a spring, and the spring is arranged in the internal space of the guide column.

[0014] Preferably, the valve mechanism includes a sealing membrane; wherein the bottom of the sealing membrane is adhered to the top of the barrier valve, and the top is provided with a rectangular skirt adhered to the outer area of ​​the first through hole of the cold plate.

[0015] Preferably, the valve mechanism includes a accommodating cavity; wherein, a cavity for accommodating the electromagnet is provided in the accommodating cavity, the open 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.

[0016] Preferably, the locking mechanism includes a spring, a slider, and a guide slot; wherein the number of the springs is 16 or more, arranged on the left and right sides of the empty slots in the inner ring of the electromagnet, one end of the spring connected to the electromagnet, and the other end connected to the slider. The sliders are paired with the guide slots one by one, and the guide slots are arranged outside the guide column.

[0017] 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

[0018] Figure 1 Schematic diagram of the liquid cooling plate of the present invention;

[0019] Figure 2 Schematic diagram of the cold plate mechanism in the present invention;

[0020] Figure 3 Schematic diagram of the valve mechanism in the present invention;

[0021] Figure 4 Schematic diagram of the structure of the valve in the present invention;

[0022] Figure 5 Schematic diagram of the structure of the locking mechanism of the present invention;

[0023] Figure 6 、 7 Schematic diagram of flow channel switching of the present invention.

[0024] Figure numerals: 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 membrane; 232, sealing ring; 30, locking mechanism; 301, reed; 302, slider; 303, guide groove. DETAILED DESCRIPTION

[0025] The present invention will be described in further detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0026] In the description of the present invention, it should be noted that the terms "front", "rear", "above", "below", "upper end", "lower end", "both 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. Therefore, they should not be understood as limiting the present invention.

[0027] In the description of the present invention, it should be understood that the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Thus, a feature defined as "first", "second", or "third" may explicitly or implicitly include at least one of such features. In addition, the terms "including", "having", "arranged", "disposed", and any variations thereof are intended to cover, but not be limited to, a process, method, system, or product that is a series of steps or units, and may optionally include steps or units that are not listed, or may optionally include other steps or units that are inherent to such processes, methods, products, or devices.

[0028] In addition to the above, it is emphasized that references to "embodiments" herein mean that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of such phrases in various locations in the specification does not necessarily refer to the same embodiment, nor does it refer to independent or alternative embodiments that are mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0029] Combine Figure 1-4 As shown, this embodiment provides a novel variable flow channel liquid cooling plate for batteries (automotive power batteries, energy storage batteries, etc.), characterized by including:

[0030] Cold plate mechanism 10;

[0031] 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 one, but in some other embodiments, the number is not limited to one.

[0032] In some embodiments, the inlet 101 and the outlet 102 are distributed at different ends or are arranged on the side panels.

[0033] 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, the number is not limited to 6.

[0034] In some embodiments, the flow channel 11 is U-shaped, S-shaped, or other shapes.

[0035] 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, the number is not limited to 5.

[0036] 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, the number is not limited to 4.

[0037] In some embodiments, the first through hole 103 is in a diamond, circular or other shape and is provided at the upper end of the liquid cooling plate.

[0038] It should be noted that the cold plate mechanism 10 shown in the figure includes blocking plates 104 ; wherein, there are two blocking plates, which are arranged on the front and rear sides of the cold plate mechanism 10 to close the front and rear openings of the cold plate mechanism 10 .

[0039] 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 upper plate 105 is provided with an inlet 101 and an outlet 102, and the lower plate 106 is provided with a partition 12 and a flow channel 11, and the upper plate and the lower plate are connected vertically; the blocking plate cooperates to block the front and rear sides of the cold plate mechanism to form a sealed cavity;

[0040] Valve mechanism 20;

[0041] It should be noted that the valve mechanism 20 shown in the figure includes an accommodating cavity 204; wherein the accommodating cavity 204 is provided at the first through hole 103 and is connected to the cold plate outside the cold plate.

[0042] 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, and 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 to it.

[0043] It should be further explained that the main function of the electromagnet 211 is to attract the blocking valve 221. When the working mode needs to be switched, the electromagnet 211 attracts the blocking valve 221 and cooperates with the locking mechanism 30 to complete the switching of the liquid cooling plate working mode.

[0044] 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 .

[0045] It should be further explained that the blocking valve 221 primarily supports the sealing membrane 231 and connects the sealing membrane 231 to the electromagnet 211 and spring 212. In the blocking state, the valve is lifted into position by the spring 212 and then secured by the locking mechanism 30. In the open state, the valve is activated by the electromagnet 211 and then secured by the locking mechanism 30.

[0046] It should be noted that the valve mechanism 20 shown in the figure also includes a sealing membrane 231; wherein, the bottom of the sealing membrane 231 is connected to the blocking valve 221, and the top rectangular skirt is connected to the cold plate mechanism within the accommodating cavity 204 after passing through the first through hole 103.

[0047] It should be further explained that the main function of the sealing membrane 231 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 skirts of the sealing membrane 231 can be compressed and placed in the gap between the first through hole 103 and the blocking valve 221.

[0048] 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.

[0049] 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 support of the sealing membrane 231 by the barrier valve 221.

[0050] Locking mechanism 30;

[0051] It should be noted that the locking mechanism 30 shown in the figure includes a spring 301 ; wherein one end of the spring is connected to the electromagnet 211 , and the other end is connected to the slider 302 .

[0052] 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 .

[0053] 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 end 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 end of the guide groove.

[0054] As can be seen from the above, 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.

[0055] 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:

[0056] 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 along the right side of the guide groove 303 to the bottom. 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.

[0057] When the valve mechanism 20 needs to be switched 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 along the left side of the guide groove 303 to the upper left acute angle, and the electromagnet 211 is closed; the blocking valve 221 is then moved upward by the action of the spring 212, and the slider 302 slides along the guide groove 303 to the top obtuse angle. 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.

[0058] The above is a single cycle of switching the operating state. To switch the operating state again, the electromagnet 211 can be repeatedly turned on and off for a certain period of time to switch the operating state of the valve mechanism 20. The flow channel type of the flow channel plate can be switched by switching the blocking valves 221 located at the positions of the first through holes 103 between the isolation state and the access state.

[0059] Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the description and implementation methods. 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 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: The cold plate mechanism is characterized in that the cold plate mechanism comprises an upper plate, a lower plate, a blocking plate and a first through hole; wherein the upper plate is provided with an inlet and an outlet; the lower plate is provided with a flow channel and a partition, and the upper plate and the lower plate are connected up and down; the blocking plate cooperates to seal the front and rear sides of the cold plate mechanism to form a sealed cavity; the flow channel 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, and the flow channels are arranged side by side on the left and right, wherein the first flow channel and the sixth flow channel are respectively connected to the inlet and the outlet; the partition comprises a first partition, a second partition, a third partition, a fourth partition and a fifth partition, and the partitions are arranged side by side on the left and right and arranged between the two flow channels; the number of the first through holes is 4, which are arranged between the partition and the blocking plate and on the extension line of the partition, wherein two first through holes are symmetrically arranged on the left and right sides of the third partition, and the other two are respectively arranged on the first partition and the fifth partition near the inlet and outlet; The valve mechanism arranged on the cold plate mechanism includes a accommodating chamber, an electromagnet, a blocking valve, a accommodating groove, a guide column, a spring and a sealing membrane; wherein, a cavity for accommodating the electromagnet is provided in the accommodating chamber, and one side of the cavity opening is welded to the cold plate; an empty groove is provided in the inner ring of the electromagnet; the blocking valve is provided with a accommodating groove for accommodating the electromagnet; a guide column is provided in the accommodating groove; the guide column is matched with the empty groove in the electromagnet; the spring is arranged in the internal space of the guide column; the bottom of the sealing membrane is adhered to the top of the blocking valve, and the rectangular skirt at the top of the sealing membrane is connected to the cold plate mechanism within the accommodating chamber after passing through the first through hole; A locking mechanism is provided inside the valve mechanism; the locking mechanism includes a reed, a guide groove, a slider and a guide groove; wherein the reed is arranged on the left and right sides of the empty groove of the inner ring of the electromagnet relative to each other, one end of the reed is connected to the electromagnet, and the other end is connected to the slider; the guide groove is provided on the outside of the guide column; the slider is matched with the guide groove one by one; the locking mechanism is used to fix the valve mechanism after it enters the corresponding working condition, and the specific working process is as follows: when the flow channel needs to be isolated, the electromagnet is activated, and when the slider slides from the obtuse angle at the top of the guide groove to the upper right acute angle, the electromagnet is closed, and the blocking valve moves upward under the action of the spring. Due to the obstruction of the slope boss in the guide groove, the slider can only slide along the right side of the guide groove to the bottom end. At this time, the blocking valve is at the highest point, and the sealing membrane is fully extended due to the support of the blocking valve. At this time, the valve mechanism is in a blocking state; When the valve mechanism needs to be switched to the passage state, the electromagnet is activated again, the blocking valve moves downward due to adsorption, the slider moves along the left side of the guide groove to the upper left acute angle, the electromagnet is closed, and the blocking valve moves upward again due to the action of the spring, and the slider slides along the guide groove to the top obtuse angle. Due to the action of the spring and the slope boss in the guide groove, the slider cannot move further, and the locking mechanism now restricts the blocking valve to the passage state.

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