TWI731719B - Liquid tank system and li-ion battery cooling system therewith - Google Patents

Liquid tank system and li-ion battery cooling system therewith Download PDF

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TWI731719B
TWI731719B TW109120144A TW109120144A TWI731719B TW I731719 B TWI731719 B TW I731719B TW 109120144 A TW109120144 A TW 109120144A TW 109120144 A TW109120144 A TW 109120144A TW I731719 B TWI731719 B TW I731719B
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liquid
accommodating space
ion battery
upper discharge
discharge port
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TW109120144A
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TW202201843A (en
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蕭啟成
廖宜寬
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英業達股份有限公司
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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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Abstract

A liquid tank system includes a tank body and a liquid coolant supplying device. The tank body has an accommodating space, a liquid inlet, and an upper outlet. The liquid inlet and the upper outlet communicate with the accommodating space. The accommodating space is sealed except for the liquid inlet and the upper outlet. The liquid coolant supplying device is connected to the liquid inlet so as to continuously provide a liquid coolant to the accommodating space through the liquid inlet. The liquid coolant in the accommodating space overflows out of the tank body through the upper outlet. A Li-ion battery cooling system includes a Li-ion battery and the above liquid tank system. The Li-ion battery is disposed in the accommodating space and submerged in the liquid coolant. The continuously flowing liquid coolant dissipates heat from the lithium battery.

Description

液箱系統及鋰離子電池冷卻系統 Liquid tank system and lithium ion battery cooling system

本發明關於一種液箱系統，尤指一種密封且具有持續流動冷卻液的液箱系統、及利用此液箱系統之鋰離子電池冷卻系統。 The present invention relates to a liquid tank system, in particular to a sealed liquid tank system with a continuous flow of cooling liquid, and a lithium ion battery cooling system using the liquid tank system.

隨著鋰離子電池的技術發展，鋰離子電池已能以經濟有效的方式應用至電動汽車。為了行車安全，鋰離子電池需進行測試。鋰離子電池具有高化學反應性，瑕疵的鋰離子電池可能在測試時產生高熱、爆炸及有毒的濃煙。一般鋰離子電池的測試場所通常僅有斷電、消防設備，難以及時且有效地保護測試人員。此外，一般而言，當鋰離子電池發生短路而燃燒時，因鋰的高化學反應性，即使及時使用滅火器(例如其泡沫、乾粉完整覆蓋鋰離子電池)，燃燒仍會一直持續，直至鋰離子電池在其鋰消耗殆盡。因此，目前對於鋰離子電池因短路而燃燒的處理方式，多是將之置於露天環境，靜待其鋰消耗殆盡。對於容量較大的鋰離子電池，前述持續的燃燒會附帶有毒氣體，也容易引發爆炸，均對環境及人員有害。 With the development of lithium-ion battery technology, lithium-ion batteries have been applied to electric vehicles in a cost-effective manner. For driving safety, lithium-ion batteries need to be tested. Lithium-ion batteries have high chemical reactivity, and defective lithium-ion batteries may produce high heat, explosion and toxic smoke during testing. Generally, testing sites for lithium-ion batteries usually only have power-off and fire-fighting equipment, which makes it difficult to protect testers in a timely and effective manner. In addition, generally speaking, when a lithium-ion battery burns due to a short circuit, due to the high chemical reactivity of lithium, even if the fire extinguisher is used in time (for example, its foam, dry powder completely covers the lithium-ion battery), the combustion will continue until the lithium ion The battery is exhausted in its lithium. Therefore, the current treatment method for lithium-ion batteries burning due to short-circuits is to place them in the open air and wait for their lithium to be exhausted. For a lithium-ion battery with a larger capacity, the aforementioned continuous combustion will be accompanied by toxic gas, and it is also easy to cause an explosion, which is harmful to the environment and personnel.

鑑於先前技術中的問題，本發明之一目的在於提供一種液箱系統，具有流動的冷卻液及密封的容置空間，可提供有效且迅速的散熱效率及防止容置空間內的氣體四處擴散。 In view of the problems in the prior art, one object of the present invention is to provide a liquid tank system with a flowing coolant and a sealed accommodating space, which can provide effective and rapid heat dissipation efficiency and prevent the gas in the accommodating space from spreading around.

根據本發明之液箱系統包含一箱體及一冷卻液供應裝置。該箱體具有一容置空間、一液體入口及一上排出口，該液體入口及該上排出口與該容置 空間連通，該容置空間除了該液體入口及該上排出口外是密封的。該冷卻液供應裝置與該液體入口連接以經由該液體入口持續提供一冷卻液至該容置空間內。於該容置空間內之該冷卻液經由該上排出口溢流出該箱體。藉此，該容置空間內保持有流動的冷卻液以提供有效且迅速的散熱效率，且透過密封的容置空間以防止容置空間內的氣體四處擴散。 The liquid tank system according to the present invention includes a tank and a cooling liquid supply device. The box has an accommodating space, a liquid inlet and an upper discharge outlet, the liquid inlet and the upper discharge outlet and the accommodating space The space is connected, and the accommodating space is sealed except for the liquid inlet and the upper discharge outlet. The cooling liquid supply device is connected with the liquid inlet to continuously provide a cooling liquid into the accommodating space through the liquid inlet. The cooling liquid in the accommodating space overflows out of the box body through the upper discharge port. Thereby, flowing cooling liquid is kept in the accommodating space to provide effective and rapid heat dissipation efficiency, and the sealed accommodating space prevents the gas in the accommodating space from spreading around.

本發明之另一目的在於提供一種鋰離子電池冷卻系統，利用前述液箱系統提供一鋰離子電池散熱功能及防止該鋰離子電池產生的氣體四處擴散。 Another object of the present invention is to provide a lithium-ion battery cooling system, which utilizes the aforementioned liquid tank system to provide a lithium-ion battery heat dissipation function and prevent the gas generated by the lithium-ion battery from spreading around.

根據本發明之鋰離子電池冷卻系統包含一鋰離子電池及一液箱系統。該液箱系統包含一箱體及一冷卻液供應裝置。該箱體具有一容置空間、一液體入口及一上排出口，該液體入口及該上排出口與該容置空間連通，該容置空間除了該液體入口及該上排出口外是密封的。該冷卻液供應裝置與該液體入口連接以經由該液體入口持續提供一冷卻液至該容置空間內。於該容置空間內之該冷卻液經由該上排出口溢流出該箱體。該鋰離子電池設置於該容置空間中且沒入該冷卻液中。藉此，該流動的冷卻液可對該鋰離子電池散熱，且該密封的容置空間可防止該鋰離子電池產生的氣體四處擴散。 The lithium ion battery cooling system according to the present invention includes a lithium ion battery and a liquid tank system. The liquid tank system includes a tank body and a cooling liquid supply device. The box body has an accommodating space, a liquid inlet and an upper discharge outlet. The liquid inlet and the upper discharge outlet communicate with the accommodating space, and the accommodating space is sealed except for the liquid inlet and the upper discharge outlet. The cooling liquid supply device is connected with the liquid inlet to continuously provide a cooling liquid into the accommodating space through the liquid inlet. The cooling liquid in the accommodating space overflows out of the box body through the upper discharge port. The lithium ion battery is arranged in the accommodating space and submerged in the cooling liquid. Thereby, the flowing cooling liquid can dissipate heat to the lithium ion battery, and the sealed accommodating space can prevent the gas generated by the lithium ion battery from spreading around.

相較於先前技術，根據本發明之液箱系統可提供有效散熱及防止氣體四處擴散的環境，有效解決先前技術中鋰離子電池燃燒、爆炸及有毒氣體等難以處理的問題。 Compared with the prior art, the liquid tank system according to the present invention can provide an environment that effectively dissipates heat and prevents gas from spreading around, effectively solving the problems of burning, exploding, and toxic gases of lithium-ion batteries in the prior art.

關於本發明之優點與精神可以藉由以下的發明詳述及所附圖式得到進一步的瞭解。 The advantages and spirit of the present invention can be further understood from the following detailed description of the invention and the accompanying drawings.

1,3:鋰離子電池冷卻系統 1,3: Lithium-ion battery cooling system

12:鋰離子電池 12: Lithium-ion battery

14:液箱系統 14: Tank system

142:箱體 142: Box

142a:容置空間 142a: accommodating space

142b:液體入口 142b: Liquid inlet

142c:上排出口 142c: Upper discharge outlet

142d:液體排出口 142d: Liquid discharge port

1422:本體 1422: body

1422a:開口 1422a: opening

1424:上蓋 1424: upper cover

144:冷卻液供應裝置 144: Coolant supply device

1442:冷卻液源 1442: Coolant Source

1444:供應管路 1444: supply pipeline

1446:控制閥 1446: control valve

146:冷卻液 146: Coolant

146a:液面 146a: Liquid level

148:排水管路 148: Drainage line

1482:通氣口 1482: Vent

1482a:高度 1482a: height

1484:排洩口 1484: excretion

圖1為根據一實施例之一鋰離子電池冷卻系統之配置示意圖。 FIG. 1 is a schematic diagram of the configuration of a lithium-ion battery cooling system according to an embodiment.

圖2為圖1中鋰離子電池冷卻系統之液箱系統之箱體之示意圖。 Fig. 2 is a schematic diagram of the tank body of the liquid tank system of the lithium-ion battery cooling system in Fig. 1.

圖3為根據另一實施例之一鋰離子電池冷卻系統之配置示意圖。 3 is a schematic diagram of the configuration of a lithium-ion battery cooling system according to another embodiment.

請參閱圖1及圖2。根據一實施例之一鋰離子電池冷卻系統1包含一鋰離子電池12(以一方塊表示於圖1中)及一液箱系統14。液箱系統14包含一箱體142及一冷卻液供應裝置144。箱體142具有一容置空間142a、一液體入口142b及一上排出口142c，液體入口142b及上排出口142c與容置空間142a連通。冷卻液供應裝置144與液體入口142b連接以經由液體入口142b持續提供一冷卻液146至容置空間142a內。於容置空間142a內之冷卻液146經由上排出口142c持續溢流出箱體142。於圖1中，冷卻液146的流動方向以實線箭頭表示。鋰離子電池12設置於容置空間142a中且沒入冷卻液146中；亦即，冷卻液146於容置空間142a內形成之液面146a高於鋰離子電池12。藉此，流動的冷卻液146對鋰離子電池12散熱。此外，如圖1所示，容置空間142a除了液體入口142b及上排出口142c外是密封的。因此，若鋰離子電池12產生氣體(例如因燃燒而產生有毒氣體)，將僅能經由上排出口142c排出(其流動方向以虛線箭頭表示)，避免有毒氣體四處散逸。 Please refer to Figure 1 and Figure 2. According to an embodiment, a lithium-ion battery cooling system 1 includes a lithium-ion battery 12 (shown as a block in FIG. 1) and a liquid tank system 14. The liquid tank system 14 includes a tank 142 and a cooling liquid supply device 144. The box 142 has an accommodation space 142a, a liquid inlet 142b and an upper discharge outlet 142c, and the liquid inlet 142b and the upper discharge outlet 142c are in communication with the accommodation space 142a. The cooling liquid supply device 144 is connected to the liquid inlet 142b to continuously provide a cooling liquid 146 into the accommodating space 142a through the liquid inlet 142b. The cooling liquid 146 in the accommodating space 142a continuously overflows out of the tank 142 through the upper discharge port 142c. In FIG. 1, the flow direction of the cooling liquid 146 is indicated by a solid arrow. The lithium ion battery 12 is disposed in the accommodating space 142 a and submerged in the cooling liquid 146; that is, the liquid level 146 a formed by the cooling liquid 146 in the accommodating space 142 a is higher than that of the lithium ion battery 12. Thereby, the flowing cooling liquid 146 dissipates heat to the lithium ion battery 12. In addition, as shown in FIG. 1, the accommodating space 142a is sealed except for the liquid inlet 142b and the upper discharge port 142c. Therefore, if the lithium-ion battery 12 generates gas (for example, toxic gas generated by combustion), it can only be discharged through the upper discharge port 142c (the flow direction is indicated by the dashed arrow) to prevent the toxic gas from escaping everywhere.

於鋰離子電池冷卻系統1實際的使用上，亦可先不要對容置空間142a注入冷卻液146，使得鋰離子電池12可在容置空間142a內進行測試。當測試失敗時(例如鋰離子電池12短路而產生高熱，甚至開始燃燒)，即可對容置空間142a注入冷卻液146，迅速對鋰離子電池12散熱，降低鋰離子電池12溫度。 In the actual use of the lithium-ion battery cooling system 1, it is also possible not to inject the cooling liquid 146 into the accommodating space 142a, so that the lithium-ion battery 12 can be tested in the accommodating space 142a. When the test fails (for example, the lithium ion battery 12 is short-circuited and generates high heat, or even starts to burn), the cooling liquid 146 can be injected into the accommodating space 142a to quickly dissipate the lithium ion battery 12 and reduce the temperature of the lithium ion battery 12.

此外，於實作上，透過控制冷卻液146的流入(經由液體入口142b)及流出(經由上排出口142c)，即可使液面146a不淹沒上排出口142c，使得容置空間142a內、液面146a上方的空間直接經由上排出口142c與外界連通。此設置有助於液面146a上方的空間內的氣體能平順地經由上排出口142c流出箱體142。例如，沒入冷卻液146中的鋰離子電池12燃燒產生的有毒氣體上升進入液面146a上方的空間，使得該處的氣壓增加，進而使氣體經由上排出口142c流出箱體142。另 外，於實作上，即使液面146a淹沒上排出口142c，氣壓的增加亦能增加冷卻液146經由上排出口142c流出箱體142的速率，直至上排出口142c露出液面146a，此時氣體便能經由露出的上排出口142c箱體142。此外，於本實施例中，上排出口142c高於液體入口142b，此有助於冷卻液146自下向上流動，有助於散熱。於實作上，上排出口142c亦可低於或等於液體入口142b，此配置仍具有流動的冷卻液146的效果，同樣具有強制對流散熱的效果。 In addition, in practice, by controlling the inflow (via the liquid inlet 142b) and outflow (via the upper discharge port 142c) of the cooling liquid 146, the liquid surface 146a can be prevented from submerging the upper discharge port 142c, so that the accommodating space 142a, The space above the liquid level 146a directly communicates with the outside through the upper discharge port 142c. This arrangement helps the gas in the space above the liquid surface 146a to flow out of the tank 142 through the upper discharge port 142c smoothly. For example, the toxic gas generated by the combustion of the lithium ion battery 12 submerged in the cooling liquid 146 rises into the space above the liquid surface 146a, causing the air pressure there to increase, thereby causing the gas to flow out of the tank 142 through the upper discharge port 142c. another In addition, in practice, even if the liquid surface 146a floods the upper discharge port 142c, the increase in air pressure can increase the rate at which the cooling liquid 146 flows out of the tank 142 through the upper discharge port 142c until the upper discharge port 142c exposes the liquid surface 146a. The gas can pass through the exposed upper discharge port 142c of the box 142. In addition, in this embodiment, the upper discharge outlet 142c is higher than the liquid inlet 142b, which helps the cooling liquid 146 to flow from bottom to top, and helps to dissipate heat. In practice, the upper discharge outlet 142c can also be lower than or equal to the liquid inlet 142b. This configuration still has the effect of the flowing cooling liquid 146, and also has the effect of forced convection to dissipate heat.

於本實施例中，鋰離子電池冷卻系統1更包含一排水管路148，連接至上排出口142c。排水管路148具有一通氣口1482及一排洩口1484。自上排出口142c排出的氣體經由通氣口1482排出，自上排出口142c排出的冷卻液146經由排洩口1484排出。於實作上，於通氣口1482處可設置過濾器，以濾除或減少排出氣體中的有毒物質。同樣的，於排洩口1484處亦可設置過濾器，以濾除或減少排出冷卻液146中的有毒物質(例如鋰離子電池12燃燒產生的有毒氣體或物質溶入冷卻液146中的部分)。另外，於實作上，通氣口1482的高度1482a(自上排出口142c至通氣口1482的高度差)可依實際冷卻液146於上排出口142c處的壓力而決定，以使當液面146a淹沒上排出口142c時，自上排出口142c流出的冷卻液146不會自通氣口1482溢出。 In this embodiment, the lithium ion battery cooling system 1 further includes a drain pipe 148 connected to the upper discharge port 142c. The drain line 148 has a vent 1482 and a drain 1484. The gas discharged from the upper discharge port 142c is discharged through the vent 1482, and the cooling liquid 146 discharged from the upper discharge port 142c is discharged through the discharge port 1484. In practice, a filter can be installed at the vent 1482 to filter out or reduce toxic substances in the exhaust gas. Similarly, a filter can also be provided at the drain 1484 to filter or reduce the toxic substances in the discharged cooling liquid 146 (for example, the toxic gas generated by the combustion of the lithium ion battery 12 or the part of the substances dissolved in the cooling liquid 146). In addition, in practice, the height 1482a of the vent 1482 (the height difference from the upper discharge port 142c to the vent 1482) can be determined according to the actual pressure of the coolant 146 at the upper discharge port 142c, so that the current level 146a When the upper discharge port 142c is submerged, the coolant 146 flowing out from the upper discharge port 142c will not overflow from the vent 1482.

於實作上，冷卻液供應裝置144可由一冷卻液源1442及一供應管路1444實作，供應管路1444連接冷卻液源1442及液體入口142b。冷卻液源1442可為例如但不限於一儲存塔(例如水塔)，儲存有冷卻液146(例如水)。塔內冷卻液146經由供應管路1444提供給箱體142。於實作上，冷卻液供應裝置144可使用加壓裝置(例如泵)增加冷卻液146液壓，以使冷卻液146能順利經由液體入口142b流入容置空間142a中並保持冷卻液146流動(即自液體入口142b流入容置空間142a、自上排出口142c流出容置空間142a)，或增加冷卻液146的流量(自液體入口142b流入容置空間142a、自上排出口142c流出容置空間142a)。此外，於實作 上，冷卻液供應裝置144可包含一控制閥1446，對應液體入口142b設置於供應管路1444上。控制閥1446可被操作以控制冷卻液146的輸入壓力(或流量)，以使液面146a不淹沒上排出口142c。例如，控制閥1446可由但不限於一減壓閥實作。 In practice, the cooling liquid supply device 144 can be implemented by a cooling liquid source 1442 and a supply line 1444, and the supply line 1444 is connected to the cooling liquid source 1442 and the liquid inlet 142b. The cooling liquid source 1442 may be, for example, but not limited to, a storage tower (for example, a water tower) in which cooling liquid 146 (for example, water) is stored. The cooling liquid 146 in the tower is supplied to the tank 142 via the supply line 1444. In practice, the cooling liquid supply device 144 can use a pressurizing device (such as a pump) to increase the hydraulic pressure of the cooling liquid 146, so that the cooling liquid 146 can smoothly flow into the containing space 142a through the liquid inlet 142b and keep the cooling liquid 146 flowing (ie From the liquid inlet 142b into the accommodating space 142a, from the upper discharge port 142c out of the accommodating space 142a), or increase the flow rate of the cooling liquid 146 (from the liquid inlet 142b into the accommodating space 142a, from the upper discharge port 142c out of the accommodating space 142a) ). In addition, Yu Shizuo Above, the cooling liquid supply device 144 may include a control valve 1446, and the corresponding liquid inlet 142b is provided on the supply pipe 1444. The control valve 1446 can be operated to control the input pressure (or flow) of the cooling liquid 146 so that the liquid level 146a does not submerge the upper discharge port 142c. For example, the control valve 1446 can be implemented by, but not limited to, a pressure reducing valve.

另外，於本實施例中，箱體142以防爆材料製作，故可承受鋰離子電池12一定程度的爆炸。又，於本實施例中，箱體142包含一本體1422及一上蓋1424，本體1422具有一開口1422a，上蓋1424可開啟地密封開口1422a以形成容置空間142a。其中，液體入口142b及上排出口142c設置於本體1422，本體1422與上蓋1424樞接，但實作上均不以此為限。例如，本體1422與上蓋1424可分開。又例如，液體入口142b設置於本體1422，上排出口142c設置於上蓋1424。 In addition, in this embodiment, the box body 142 is made of explosion-proof materials, so it can withstand a certain degree of explosion of the lithium ion battery 12. Furthermore, in this embodiment, the box body 142 includes a main body 1422 and an upper cover 1424. The main body 1422 has an opening 1422a, and the upper cover 1424 can openably seal the opening 1422a to form an accommodating space 142a. Wherein, the liquid inlet 142b and the upper discharge outlet 142c are provided in the main body 1422, and the main body 1422 is pivotally connected to the upper cover 1424, but the implementation is not limited thereto. For example, the body 1422 and the upper cover 1424 can be separated. For another example, the liquid inlet 142b is provided in the main body 1422, and the upper discharge port 142c is provided in the upper cover 1424.

請參閱圖3，其顯示根據另一實施例之一鋰離子電池冷卻系統3與鋰離子電池冷卻系統1大致相同，故鋰離子電池冷卻系統3沿用鋰離子電池冷卻系統1之元件符號。關於鋰離子電池冷卻系統3之其他說明，請參閱鋰離子電池冷卻系統1之相關說明，不另贅述。相對於鋰離子電池冷卻系統1，鋰離子電池冷卻系統3之箱體142更包含一液體排出口142d，與排水管路148連接。液體排出口142d低於上排出口142c。於實際使用時，液體排出口142d亦可與上排出口142c一同供冷卻液146流出容置空間142a，以保持容置空間142a內冷卻液146之流動。 此時，可提高冷卻液146之流動速度(或謂替換速度)，亦即可提高散熱效率。又，液體排出口142d亦可僅用於洩漏容置空間142a內之冷卻液146(例如液體排出口142d靠近本體1422底部設置)，亦即於運作鋰離子電池冷卻系統3以對鋰離子電池12散熱時，液體排出口142d保持關閉。此外，於本實施例中，液體入口142b高於液體排出口142d且低於上排出口142c。 Please refer to FIG. 3, which shows that the lithium-ion battery cooling system 3 is substantially the same as the lithium-ion battery cooling system 1 according to another embodiment, so the lithium-ion battery cooling system 3 follows the component symbols of the lithium-ion battery cooling system 1. For other descriptions of the lithium-ion battery cooling system 3, please refer to the relevant descriptions of the lithium-ion battery cooling system 1, which will not be repeated. Compared with the lithium-ion battery cooling system 1, the box 142 of the lithium-ion battery cooling system 3 further includes a liquid discharge port 142 d connected to the drain pipe 148. The liquid discharge port 142d is lower than the upper discharge port 142c. In actual use, the liquid discharge port 142d and the upper discharge port 142c can also allow the cooling liquid 146 to flow out of the accommodating space 142a to maintain the flow of the cooling liquid 146 in the accommodating space 142a. At this time, the flow speed (or replacement speed) of the cooling liquid 146 can be increased, and the heat dissipation efficiency can be improved. In addition, the liquid discharge port 142d can also only be used to leak the cooling liquid 146 in the accommodating space 142a (for example, the liquid discharge port 142d is located near the bottom of the main body 1422), that is, when the lithium-ion battery cooling system 3 is operated to prevent the lithium-ion battery 12 When heat is dissipated, the liquid discharge port 142d remains closed. In addition, in this embodiment, the liquid inlet 142b is higher than the liquid discharge port 142d and lower than the upper discharge port 142c.

另外，於本實施例中，液體排出口142d與上排出口142c均是設置於本體1422側壁，但實作上不以此為限。例如，液體排出口142d改設置於本體1422底部(如圖3中虛線所示者)。又例如，亦可於本體1422的側壁及底部均設置有液 體排出口(即包含液體排出口142d及圖3中以虛線所示之液體排出口)。其中，前述位於本體1422底部液體排出口亦可與上排出口142c一同供冷卻液146流出容置空間142a，以保持容置空間142a內冷卻液146之流動，又或僅用於洩漏容置空間142a內之冷卻液146。 In addition, in this embodiment, the liquid discharge port 142d and the upper discharge port 142c are both provided on the side wall of the main body 1422, but the implementation is not limited to this. For example, the liquid discharge port 142d is changed to the bottom of the main body 1422 (as shown by the dashed line in FIG. 3). For another example, the side walls and bottom of the main body 1422 can also be provided with liquid The body discharge port (that is, includes the liquid discharge port 142d and the liquid discharge port shown by the dotted line in FIG. 3). Among them, the aforementioned liquid outlet at the bottom of the main body 1422 can also be used with the upper outlet 142c for the cooling liquid 146 to flow out of the accommodating space 142a, so as to maintain the flow of the cooling liquid 146 in the accommodating space 142a, or only for leaking the accommodating space Coolant 146 within 142a.

在本發明的一實施例中，本發明之技術係可應用於車載裝置，例如自駕車、電動車或半自駕車等等。 In an embodiment of the present invention, the technology of the present invention can be applied to in-vehicle devices, such as self-driving cars, electric cars, or semi-self-driving cars, and so on.

以上所述僅為本發明之較佳實施例，凡依本發明申請專利範圍所做之均等變化與修飾，皆應屬本發明之涵蓋範圍。 The foregoing descriptions are only preferred embodiments of the present invention, and all equivalent changes and modifications made in accordance with the scope of the patent application of the present invention shall fall within the scope of the present invention.

1:鋰離子電池冷卻系統 1: Li-ion battery cooling system

12:鋰離子電池 12: Lithium-ion battery

14:液箱系統 14: Tank system

142:箱體 142: Box

142a:容置空間 142a: accommodating space

142b:液體入口 142b: Liquid inlet

142c:上排出口 142c: Upper discharge outlet

1422:本體 1422: body

1424:上蓋 1424: upper cover

144:冷卻液供應裝置 144: Coolant supply device

1442:冷卻液源 1442: Coolant Source

1444:供應管路 1444: supply pipeline

1446:控制閥 1446: control valve

146:冷卻液 146: Coolant

146a:液面 146a: Liquid level

148:排水管路 148: Drainage line

1482:通氣口 1482: Vent

1482a:高度 1482a: height

1484:排洩口 1484: excretion

Claims (8)

一種液箱系統，包含：一箱體，具有一容置空間、一液體入口及、一液體排出口及一上排出口，該液體入口、該液體排出口及該上排出口與該容置空間連通，該液體排出口低於該上排出口，該容置空間除了該液體入口及該上排出口外是密封的；一排水管路，連接至該液體排出口及該上排出口，該排水管路具有一通氣口及一排洩口；以及一冷卻液供應裝置，與該液體入口連接以經由該液體入口持續提供一冷卻液至該容置空間內，於該容置空間內之該冷卻液經由該上排出口溢流出該箱體。 A liquid tank system includes: a tank body with an accommodating space, a liquid inlet, a liquid discharge outlet, and an upper discharge outlet, the liquid inlet, the liquid discharge outlet, the upper discharge outlet, and the accommodating space Connected, the liquid discharge outlet is lower than the upper discharge outlet, and the accommodating space is sealed except for the liquid inlet and the upper discharge outlet; a drainage pipe is connected to the liquid discharge outlet and the upper discharge outlet, and the drainage pipe The passage has a vent and a drain; and a cooling liquid supply device connected to the liquid inlet to continuously provide a cooling liquid to the accommodating space through the liquid inlet, and the cooling liquid in the accommodating space passes through The upper discharge port overflows out of the box. 如請求項1所述之液箱系統，其中該箱體包含一本體及一上蓋，該本體具有一開口，該上蓋可開啟地密封該開口以形成該容置空間。 The liquid tank system according to claim 1, wherein the tank includes a body and an upper cover, the body has an opening, and the upper cover can openably seal the opening to form the accommodating space. 如請求項2所述之液箱系統，其中該液體入口及該上排出口設置於該本體。 The liquid tank system according to claim 2, wherein the liquid inlet and the upper discharge outlet are provided on the body. 如請求項1所述之液箱系統，其中該上排出口高於該液體入口。 The liquid tank system according to claim 1, wherein the upper discharge port is higher than the liquid inlet. 如請求項1所述之液箱系統，其中該液體入口高於該液體排出口且低於該上排出口。 The liquid tank system according to claim 1, wherein the liquid inlet is higher than the liquid discharge port and lower than the upper discharge port. 如請求項1所述之液箱系統，其中該冷卻液供應裝置包含一控制閥，對應該液體入口設置。 The liquid tank system according to claim 1, wherein the cooling liquid supply device includes a control valve provided corresponding to the liquid inlet. 如請求項6所述之液箱系統，其中於該容置空間內之該冷卻液形成一液面，該控制閥可被操作以使該液面不淹沒該上排出口。 The liquid tank system according to claim 6, wherein the cooling liquid in the accommodating space forms a liquid level, and the control valve can be operated so that the liquid level does not submerge the upper discharge port. 一種鋰離子電池冷卻系統，包含一鋰離子電池及如請求項1至7其中之任一請求項所述之液箱系統，該鋰離子電池設置於該容置空間中且沒入 該冷卻液中。 A lithium ion battery cooling system, comprising a lithium ion battery and the liquid tank system according to any one of claims 1 to 7, the lithium ion battery is arranged in the accommodating space and submerged The coolant.
TW109120144A 2020-06-16 2020-06-16 Liquid tank system and li-ion battery cooling system therewith TWI731719B (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN207883328U (en) * 2017-09-29 2018-09-18 中广核研究院有限公司 Integrated gaseous oxygen control device and lead base fast neutron reactor
US20200029464A1 (en) * 2018-07-17 2020-01-23 Fujitsu Limited Liquid immersion tank
CN210298364U (en) * 2019-06-06 2020-04-10 深圳绿色云图科技有限公司 Liquid immersion type cooling cabinet
TWI690686B (en) * 2018-10-31 2020-04-11 英業達股份有限公司 Cooling device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN207883328U (en) * 2017-09-29 2018-09-18 中广核研究院有限公司 Integrated gaseous oxygen control device and lead base fast neutron reactor
US20200029464A1 (en) * 2018-07-17 2020-01-23 Fujitsu Limited Liquid immersion tank
TWI690686B (en) * 2018-10-31 2020-04-11 英業達股份有限公司 Cooling device
CN210298364U (en) * 2019-06-06 2020-04-10 深圳绿色云图科技有限公司 Liquid immersion type cooling cabinet

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