Deionization device, liquid cooling system and charging pile

Abstract

The present disclosure provides a kind of deionization device, liquid cooling system and charging pile, belong to new energy technology field.Deionization device is used to remove the cation and anion in the cooling liquid of liquid cooling system, and the deionization device includes shell, the shell has inlet and outlet, the inlet is used for cooling liquid to flow in, the outlet is used for cooling liquid to flow out to liquid cooling object, and the shell is arranged with the material for removing the substance causing corrosion to liquid cooling object at the position of outlet.Taking the present disclosure, both can remove the cation and anion in cooling liquid, make the conductivity of cooling liquid keep in the range of lower, also can alleviate even avoid the corrosion problem caused by the material generated by deionization device to wire core.

Description

Technical Field

[0001] This disclosure relates to the field of new energy technology, and in particular to a deionization device, a liquid cooling system, and a charging pile. Background Technology

[0002] With the rapid development of new energy vehicles, issues such as range, cost, and driving experience have been gradually resolved. Charging has become the biggest shortcoming of new energy vehicles. In order to shorten charging time and improve user experience, high-power charging has become an urgent need for new energy vehicles.

[0003] High-power charging generates significant heat in the charging gun cables of charging stations, necessitating substantial heat dissipation. Therefore, current high-power charging solutions typically employ liquid cooling for the charging gun cables. For example, both the positive and negative charging gun cables contain cooling channels, with the positive and negative wire cores located within their respective channels and immersed in coolant. The inlets of the positive and negative charging gun cables are connected to the supply port of the liquid cooling system, and their return ports are connected to the return port. The liquid cooling system continuously supplies low-temperature coolant to the positive and negative charging gun cables, while the high-temperature coolant flowing out of the cables returns to the return port. Thus, the coolant circulating within the positive charging gun cable carries away the heat generated by the positive wire core, and the coolant circulating within the negative charging gun cable carries away the heat generated by the negative wire core.

[0004] However, after long-term circulation, the conductivity of the coolant in the positive and negative electrode wires will increase. Once the conductivity of the coolant increases, the short circuit between the positive and negative electrode wires through the coolant will become more serious. Utility Model Content

[0005] This disclosure provides a deionization device, a liquid cooling system, and a charging pile. The deionization device can remove cations and anions from the coolant, keeping the conductivity of the coolant within a low range, and can also remove substances that corrode the wire core released by the deionization device under special operating conditions (such as high-temperature conditions).

[0006] In a first aspect, this disclosure provides a deionization device for use in a liquid cooling system. The deionization device is used to remove cations and anions from the coolant in the liquid cooling system. The deionization device includes a housing with an inlet and an outlet.

[0007] The inlet is for the coolant to flow in, and the outlet is for the coolant to flow out to the liquid-cooled object. The housing is also equipped with a substance that removes substances that cause corrosion to the liquid-cooled object at the outlet position.

[0008] In the scheme disclosed herein, the deionization device is equipped with a device at the outlet for removing substances that corrode liquid-cooled objects. While the deionization device, used to remove cations and anions from the coolant, may generate substances that corrode liquid-cooled objects (such as the copper core in a charging gun cable) under certain operating conditions, such as high temperatures, these corrosive substances are removed at the outlet of the deionization device. Therefore, these corrosive substances are unlikely to flow into the liquid-cooled object, thus causing minimal corrosion. In this way, the deionization device maintains the conductivity of the coolant entering the liquid-cooled object within a low range while minimizing corrosion problems.

[0009] In one implementation, the substance that corrodes the liquid-cooled object is alkaline, and the outlet is provided with an acidic substance or activated carbon to remove the alkaline substance.

[0010] In the scheme disclosed herein, if the liquid-cooled object is sensitive to alkaline substances, then the substance causing corrosion to the liquid-cooled object is alkaline. In this case, an acidic substance can be placed inside the casing at the liquid outlet to remove the alkaline substance through acid-base neutralization. Alternatively, activated carbon can be placed inside the casing at the liquid outlet to remove the alkaline substance through the adsorption properties of the activated carbon.

[0011] If the corrosive substance causing the liquid cooling system is acidic, meaning the system is sensitive to acidic substances, an alkaline substance can be placed inside the casing at the liquid outlet to neutralize the acid and remove it. Alternatively, activated carbon can be placed inside the casing at the liquid outlet to remove the alkaline substance through adsorption.

[0012] For example, when using ion exchange resins to remove cations and anions from coolant, the anion exchange resin used to remove anions can produce alkaline substances under special operating conditions, such as high-temperature conditions. Furthermore, if the liquid-cooled system includes copper structures, such as charging gun cables with copper cores, copper is more sensitive to alkaline substances and more prone to alkaline corrosion. Therefore, the substances causing corrosion of the liquid-cooled system are alkaline, and acidic substances or activated carbon are placed at the liquid outlet to remove these alkaline substances.

[0013] In one implementation, the acidic substance includes a cation exchange resin used to remove cations from the coolant, as well as alkaline substances.

[0014] In the scheme disclosed herein, the substance causing corrosion to the liquid-cooled object is an alkaline substance. Therefore, the alkaline substance can be removed using an acidic substance. Since the cation exchange resin is acidic, it can be used to remove the alkaline substance. In this case, the cation exchange resin is used to remove both cations and alkaline substances. The cation exchange resin can be either a strong acid type or a weak acid type.

[0015] In one implementation, the acidic material includes hydrogen-type zeolite molecular sieves.

[0016] In the scheme disclosed herein, the substance causing corrosion to the liquid-cooled object is an alkaline substance. Therefore, the alkaline substance can be removed using an acidic substance. Since the hydrogen-form zeolite molecular sieve is acidic, it can be used to remove the alkaline substance. In this case, the hydrogen-form zeolite molecular sieve is used to remove the alkaline substance. The hydrogen-form zeolite molecular sieve can be a strong acid type, a moderately strong acid type, or a weak acid type.

[0017] In one implementation, the acidic substance includes a first mixed resin, which comprises a cation exchange resin and an anion exchange resin, wherein the ratio between the ion exchange capacity of the cation exchange resin and the ion exchange capacity of the anion exchange resin is greater than 3:1.

[0018] Ion exchange capacity, also known as exchange capacity, can be either total exchange capacity or working exchange capacity. Total exchange capacity refers to the total number of ions that a unit mass or unit volume of ion exchange resin can theoretically exchange under fully regenerated conditions. Working exchange capacity refers to the actual exchange capacity that the ion exchange resin can utilize under specific conditions in practical applications, typically ranging from 50% to 80% of the total exchange capacity.

[0019] In the scheme disclosed herein, the ion exchange capacity of the cation exchange resin in the first mixed resin is greater than that of the anion exchange resin. Therefore, the cation exchange resin dominates in the first mixed resin, and thus the first mixed resin exhibits the characteristics of a cation exchange resin. Consequently, the first mixed resin is acidic. Therefore, the first mixed resin can be used not only to remove alkaline substances, but also to remove cations and anions.

[0020] In one implementation, the deionization device further includes a second mixed resin for removing cations and anions from the coolant, and a separator is provided between the second mixed resin and the substance used to remove corrosion of the liquid-cooled object.

[0021] In the scheme disclosed herein, the second mixed resin comprises a cation exchange resin and an anion exchange resin, and the cation exchange resin and anion exchange resin are mixed in a volume ratio of 1:1 to 1:1.5. Therefore, the second mixed resin can be used to remove cations and anions from the coolant.

[0022] In the scheme disclosed herein, in order to confine the substance used to remove corrosion from the liquid-cooled object to the outlet of the housing, the second mixed resin and the substance used to remove corrosion from the liquid-cooled object are separated by a separator. Wherein, if the second mixed resin and the substance used to remove corrosion from the liquid-cooled object are arranged in the same housing, the separator is a filter screen. If the second mixed resin and the substance used to remove corrosion from the liquid-cooled object are arranged in different housings, the separator includes both the housing containing the second mixed resin and the housing containing the substance used to remove corrosion from the liquid-cooled object.

[0023] The substances used to remove corrosion from liquid-cooled objects are related to the substances that corrode them. For example, if alkaline substances corrode liquid-cooled objects, then acidic substances and / or activated carbon are used to remove them. Conversely, if acidic substances corrode liquid-cooled objects, then alkaline substances and / or activated carbon are used to remove them.

[0024] In one implementation, the deionization device further includes anion exchange resin for removing anions from the coolant, and a separator is provided between the anion exchange resin and the cation exchange resin.

[0025] In the scheme disclosed herein, if the cation exchange resin and the anion exchange resin are arranged in the same housing, the separator is a filter screen; if the cation exchange resin and the anion exchange resin are arranged in different housings, the separator includes the housing containing the cation exchange resin and the housing containing the anion exchange resin.

[0026] In one implementation, the deionization device includes multiple layers of cation exchange resin and multiple layers of anion exchange resin, which are arranged alternately along the direction of coolant flow, with a separator provided between each layer of anion exchange resin and each layer of cation exchange resin.

[0027] In the scheme disclosed herein, multilayer cation exchange resin and multilayer anion exchange resin are arranged alternately, which makes the removal of cations and anions more thorough and is beneficial to further reduce the conductivity of the coolant.

[0028] In the scheme disclosed herein, if adjacent layers of cation exchange resin and anion exchange resin are arranged in the same housing, the separator is a filter screen. If adjacent layers of cation exchange resin and anion exchange resin are arranged in different housings, the separator includes the housing containing the cation exchange resin and the housing containing the anion exchange resin.

[0029] In one implementation, there is one housing and the separator is a filter screen.

[0030] In the scheme disclosed herein, there is one housing, and all substances in the deionization device are arranged in this one housing. The separator between different substances is a filter screen.

[0031] In one implementation, the housing further includes two liquid collection chambers, arranged sequentially along the direction of coolant flow: one liquid collection chamber, a substance for removing cations and anions from the coolant, a substance for removing substances that corrode the liquid-cooled object, and another liquid collection chamber. The housing portion corresponding to one liquid collection chamber is provided with a liquid inlet, and the housing portion corresponding to the other liquid collection chamber is provided with a liquid outlet.

[0032] In the scheme shown in this disclosure, regardless of whether there is one or more shells, the shell can include two liquid collection chambers. The shell has an inlet in one liquid collection chamber and an outlet in the other liquid collection chamber. The liquid collection chamber connected to the inlet can be referred to as the first liquid collection chamber, and the liquid collection chamber connected to the outlet can be referred to as the second liquid collection chamber.

[0033] If there is only one housing, then along the flow direction of the coolant, the first liquid collecting chamber, the substance for removing cations and anions, the substance for removing substances that cause corrosion to the liquid-cooled object, and the second liquid collecting chamber are arranged in sequence. Alternatively, if there is only one housing, then along the flow direction of the coolant, the first liquid collecting chamber, the substance for removing anions, the substance for removing cations and substances that cause corrosion to the liquid-cooled object, and the second liquid collecting chamber are arranged in sequence.

[0034] If there are multiple shells (denoted as n), then along the flow direction of the coolant, the first n-1 shells are equipped with substances for removing cations and anions, and the nth shell is equipped with substances for removing substances that cause corrosion to the liquid-cooled object. Alternatively, the first n-1 shells are equipped with substances for removing anions, and the nth shell is equipped with substances for removing cations and substances that cause corrosion to the liquid-cooled object.

[0035] In one implementation, there are n shells, n≥2, and the n shells are connected sequentially along the flow direction of the coolant. The inlet of the first shell serves as the inlet of the deionization device, and the outlet of the nth shell serves as the outlet of the deionization device. Each shell is separated by a separator.

[0036] In the scheme disclosed herein, along the flow direction of the coolant, the outlet of the preceding housing is connected to the inlet of the following housing. In schemes with multiple housings, a substance for removing corrosion that could damage the liquid-cooled object is arranged at the outlet of the housing. Specifically, the outlet of the last housing is provided with a substance for removing corrosion that could damage the liquid-cooled object, such as an acidic substance or activated carbon.

[0037] In a second aspect, this disclosure provides a liquid cooling system, which includes a heat exchanger and a deionization device as described in the first aspect or any of the first aspects, wherein the heat exchanger and the deionization device are connected, the liquid cooling system is used to connect a liquid-cooled object, and the liquid cooling system is used to dissipate heat from the liquid-cooled object.

[0038] In the scheme disclosed herein, the outlet of the deionization device is connected to the inlet of the liquid-cooled object, and the outlet of the liquid-cooled object is connected to the inlet of the deionization device. For example, in a scheme where the deionization device includes a housing, the outlet of the housing is connected to the inlet of the liquid-cooled object, and the outlet of the liquid-cooled object is connected to the inlet on the housing. As another example, in a scheme where the deionization device includes multiple housings, along the flow direction of the coolant, the outlet of the last housing is connected to the inlet of the liquid-cooled object, and the outlet of the liquid-cooled object is connected to the inlet of the first housing.

[0039] In the scheme disclosed herein, the heat exchanger, as the core of the liquid cooling system, is used to absorb the heat of the coolant, allowing the low-temperature coolant to enter the liquid-cooled object to absorb the heat generated by the liquid-cooled object. The heat exchanger can be arranged between the outlet of the liquid-cooled object and the inlet of the deionization device, or it can be arranged between the outlet of the deionization device and the inlet of the liquid-cooled object.

[0040] Thirdly, this disclosure provides a charging pile, which includes a charging gun cable and the liquid cooling system described in the second aspect. The liquid cooling object includes the charging gun cable, and the wire core inside the charging gun cable is immersed in the coolant and exchanges heat with the coolant. Attached Figure Description

[0041] Figure 1 This is a schematic diagram of the structure of a liquid cooling system provided in an exemplary embodiment of this disclosure;

[0042] Figure 2 This is a schematic diagram of the structure of a liquid cooling system provided in another exemplary embodiment of this disclosure;

[0043] Figure 3 This is a schematic diagram of the structure of a deionization device including a housing provided in an exemplary embodiment of the present disclosure;

[0044] Figure 4 This is a schematic diagram of the structure of a deionization device including a housing, provided in another exemplary embodiment of this disclosure;

[0045] Figure 5 This is a schematic diagram of the structure of a deionization device including a housing, provided in another exemplary embodiment of this disclosure;

[0046] Figure 6 This is a schematic diagram of the structure of a deionization device including two housings provided in another exemplary embodiment of the present disclosure;

[0047] Figure 7 This is a schematic diagram of a deionization device including two housings provided in another exemplary embodiment of the present disclosure.

[0048] Explanation of reference numerals in the attached figures

[0049] 10. Water tank; 20. Deionization device; 30. Liquid-cooled object; 31. Positive electrode gun wire; 32. Negative electrode gun wire; 40. Water pump; 50. Heat exchanger; 51. First inlet; 52. First outlet; 53. Second inlet; 54. Second outlet; 60. Compressor; 70. Condenser; 80. Throttling valve. Detailed Implementation

[0050] To make the objectives, technical solutions, and advantages of this disclosure clearer, the embodiments of this disclosure will be described in further detail below with reference to the accompanying drawings.

[0051] Currently, in order to shorten charging time, there is a trend towards using high-power charging. However, high-power charging will cause the charging gun cables of the charging station to generate a lot of heat. Therefore, the heat dissipation efficiency of the charging gun cables can be improved by increasing the cross-sectional area of ​​the cables.

[0052] However, excessively increasing the cross-sectional area of ​​the charging cable would significantly increase its weight, causing inconvenience for users. Therefore, the current main solution to the problem of excessive heat in the charging cable is to use coolant to dissipate heat.

[0053] Cooling the charging gun cable using coolant can be divided into direct liquid cooling and indirect liquid cooling. Direct liquid cooling means that the core of the charging gun cable (such as the copper core) is directly immersed in the coolant, and the coolant carries away the heat from the core as it flows. Indirect liquid cooling means that the coolant does not directly contact the core of the charging gun cable. For example, the core of the charging gun cable is covered with an insulating layer, and the coolant contacts the insulating layer to dissipate heat from the core. Obviously, direct liquid cooling is more effective than indirect liquid cooling.

[0054] However, direct liquid cooling requires a low conductivity of the coolant to reduce energy loss caused by short circuits. Therefore, in solutions that use direct liquid cooling to dissipate heat from the charging cable, the liquid cooling system of the charging terminal typically includes a deionization device. This device removes ions (including cations and anions) from the coolant to keep the coolant's conductivity at a low level.

[0055] like Figure 1 The diagram shown is a structural schematic of a liquid cooling system. (Refer to...) Figure 1 As shown, the liquid cooling system includes a water tank 10 and a deionization device 20. The liquid cooling system is used to connect to the liquid-cooled object 30 to dissipate heat from the liquid-cooled object 30. The liquid-cooled object 30 may include, for example, the charging gun cable described above.

[0056] The outlet of water tank 10 is connected to the inlet of deionizer 20, or the outlet of water tank 10 and the inlet of deionizer 20 are connected by a pipeline. The outlet of deionizer is connected to the inlet of liquid cooling object 30, or the outlet of deionizer and the inlet of liquid cooling object 30 are connected by a pipeline. The outlet of liquid cooling object 30 is connected to the inlet of water tank 10, or the outlet of liquid cooling object 30 and the inlet of water tank 10 are connected by a pipeline.

[0057] The water tank 10 continuously supplies the liquid-cooled object 30 with coolant at a lower temperature, and the coolant discharged from the liquid-cooled object 30 at a higher temperature flows back into the water tank 10, thus circulating and dissipating heat from the liquid-cooled object 30.

[0058] To ensure the coolant circulates within the liquid cooling system, continue to refer to... Figure 1 As shown, the liquid cooling system also includes a water pump 40, which can be arranged on the pipeline between the liquid outlet of the water tank 10 and the liquid inlet of the liquid-cooled object 30, or between the liquid outlet of the liquid-cooled object 30 and the liquid inlet of the water tank 10. Figure 1 The diagram shows a water pump 40 positioned between the outlet of the water tank 10 and the inlet of the liquid-cooled object 30. The water pump 40 is used to pump the coolant from the water tank 10 into the charging gun line. Therefore, the outlet of the water tank 10 is connected to the inlet of the water pump 40, and the outlet of the water pump 40 is connected to the inlet of the charging gun line.

[0059] To improve the heat dissipation effect of liquid cooling, a heat exchanger is usually included in a liquid cooling system. Therefore, refer to... Figure 1 As shown, the liquid cooling system also includes a heat exchanger 50, which can be an air-cooled heat exchanger, a liquid-cooled heat exchanger, or an air-liquid heat exchanger. The heat exchanger 50 can be arranged between the outlet of the water tank 10 and the inlet of the liquid-cooled object 30, or it can be arranged between the inlet of the water tank 10 and the outlet of the liquid-cooled object 30. The attached figure shows a schematic diagram of the heat exchanger 50 arranged between the inlet of the water tank 10 and the outlet of the liquid-cooled object 30.

[0060] The diagram uses a liquid-cooled object 30 as an example of a charging gun cable. The charging terminal provides DC power to the electric vehicle, so please refer to [reference needed]. Figure 1 As shown, the charging gun cable includes a positive electrode wire 31 and a negative electrode wire 32. The number of positive electrode wires 31 is one or more, and the number of negative electrode wires 32 is one or more. Figure 1 The diagram shows a positive electrode wire 31 and a negative electrode wire 32. The end of the positive electrode wire 31 furthest from the charging head has a liquid inlet and a liquid outlet, and the end of the negative electrode wire 32 furthest from the charging head also has a liquid inlet and a liquid outlet. The charging head is used to plug into the charging port of an electric vehicle.

[0061] refer to Figure 1 As shown, the liquid inlet of the positive electrode gun line 31 and the liquid inlet of the negative electrode gun line 32 are both connected to the liquid outlet of the water pump 40, and the liquid outlet of the positive electrode gun line 31 and the liquid outlet of the negative electrode gun line 32 are both connected to the liquid inlet of the heat exchanger 50.

[0062] For example, refer to Figure 1 As shown, the inlet of the positive electrode gun wire 31 is connected to a pipe (denoted as the positive electrode inlet pipe), and the inlet of the negative electrode gun wire 32 is connected to another pipe (denoted as the negative electrode inlet pipe). The ends of both the positive and negative electrode inlet pipes are connected to the outlet of the water pump 40. Therefore, a portion of the low-temperature coolant flowing from the water pump 40 enters the positive electrode inlet pipe, and the other portion enters the negative electrode inlet pipe.

[0063] Similarly, refer to Figure 1 As shown, the outlet of the positive electrode nozzle 31 is connected to a pipe (denoted as the positive electrode return pipe), and the outlet of the negative electrode nozzle 32 is connected to another pipe (denoted as the negative electrode return pipe). Both the positive and negative electrode return pipes are connected to the inlet of the heat exchanger 50. Thus, the high-temperature coolant flowing from the positive and negative electrode return pipes converges into the heat exchanger 50. As the high-temperature coolant flows through the heat exchanger 50, heat is dissipated, resulting in a low-temperature coolant flowing out of the heat exchanger 50. This low-temperature coolant then flows back into the positive and negative electrode nozzles 31 and 32 to dissipate heat from them.

[0064] like Figure 2 The diagram shown is a structural schematic of another liquid cooling system. Figure 2 and Figure 1 The main difference is that, Figure 1 The heat exchanger 50 is a single-pipe heat exchanger, consisting of one internal pipe. This type of heat exchanger is generally an air-cooled heat exchanger. Figure 2 The heat exchanger 50 is a dual-pipe heat exchanger, which includes two pipes inside. This type of heat exchanger 50 is either a liquid-cooled heat exchanger or a wind-liquid heat exchanger.

[0065] refer to Figure 2 As shown, the heat exchanger 50 includes four ports, which are respectively denoted as the first inlet 51, the first outlet 52, the second inlet 53, and the second outlet 54. The first inlet 51 and the first outlet 52 are on one pipeline (denoted as the first pipeline) and are the inlet and outlet of the first pipeline. The second inlet 53 and the second outlet 54 are on another pipeline (denoted as the second pipeline) and are the inlet and outlet of the second pipeline. The first pipeline and the second pipeline are in contact but not connected.

[0066] Continue to refer to Figure 2 As shown, the liquid outlet of the positive electrode gun line 31 and the liquid outlet of the negative electrode gun line 32 are both connected to the first inlet 51 of the heat exchanger 50, the first outlet 52 of the heat exchanger 50 is connected to the inlet of the water tank 10, and the second inlet 53 and the second outlet 54 of the heat exchanger 50 are connected to the refrigeration circuit of the liquid cooling system. For example, the second inlet 53 and the second outlet 54 of the heat exchanger 50, the compressor 60, the condenser 70 and the throttle valve 80 form a closed loop.

[0067] So, for reference Figure 2As shown, the coolant discharged from the outlets of the positive electrode wire 31 and the negative electrode wire 32 absorbs heat generated by the cores of the positive and negative electrode wires 31 and 32, becoming a high-temperature coolant. This high-temperature coolant flows from the first inlet 51 of the heat exchanger 50 into the first pipe of the heat exchanger 50. The coolant discharged from the throttle valve 80, at a lower temperature, flows from the second inlet 53 of the heat exchanger 50 into the second pipe of the heat exchanger 50. The coolant in the first pipe and the refrigerant in the second pipe undergo heat exchange in the heat exchanger 50. As a result, the coolant discharged from the first outlet 52 of the heat exchanger 50 becomes a low-temperature coolant, which then flows back into the positive and negative electrode wires 31 and 32 to dissipate heat from their cores. Meanwhile, the refrigerant discharged from the second outlet 54 of the heat exchanger 50 becomes a high-temperature refrigerant, which then flows back into the compressor 60. The coolant circulates in the cooling circuit of the liquid cooling system, and the refrigerant circulates in the cooling circuit of the liquid cooling system to continuously absorb the heat of the positive electrode wire 31 and the negative electrode wire 32, so as to dissipate heat from the core of the positive electrode wire 31 and the negative electrode wire 32.

[0068] It should be noted that, Figure 2 The coolant and refrigerant in the formula can be the same substance, such as water, or they can be different substances, such as water as the coolant and Freon as the refrigerant.

[0069] Whether Figure 1 The liquid cooling system shown is still Figure 2 In the liquid cooling system shown, if the conductivity of the coolant is high, a portion of the current will flow from the positive electrode wire 31 through the coolant to the negative electrode wire 32, causing a short circuit and resulting in high power loss.

[0070] Therefore, the liquid cooling system of a charging terminal needs to include a deionization device to remove cations and anions from the coolant. Current deionization devices generally use ion exchange resins to remove cations and anions from the coolant. Thus, the deionization device includes both acidic cation exchange resins and basic anion exchange resins. However, under high-temperature conditions, the anion exchange resin releases alkaline substances, making the coolant alkaline. If this alkaline coolant is discharged from the outlet of the deionization device, it will corrode the charging gun cable's core (such as the copper core), reducing the cable's lifespan.

[0071] Therefore, this embodiment provides a deionization device that can remove cations and anions from the coolant, keeping the conductivity of the coolant within a low range, and can also alleviate or even avoid the corrosion problem of the wire core caused by substances (such as alkaline substances) released by certain media in the deionization device under special operating conditions (such as high temperature conditions).

[0072] The features of the deionization device provided in this embodiment are described below. This deionization device is applied to a liquid cooling system.

[0073] like Figures 3 to 7 The diagram shown is a schematic representation of a deionization device. Figures 3 to 5 The illustrated deionization device includes a housing 1, such as Figure 6 and Figure 7 The illustrated deionization device includes two housings 1.

[0074] Since the deionization device is used to remove cations and anions from the coolant, the housing 1 includes a substance for removing cations from the coolant and a substance for removing anions from the coolant.

[0075] Among them, the substances used to remove ions may produce substances that corrode the liquid-cooled object 30 under special operating conditions (such as high-temperature operating conditions). For example, the substances used to remove cations may produce substances that corrode the liquid-cooled object 30 under special operating conditions (such as high-temperature operating conditions), and / or the substances used to remove anions may produce substances that corrode the liquid-cooled object 30 under special operating conditions (such as high-temperature operating conditions).

[0076] Therefore, the deionization device also includes a component for removing substances that corrode the liquid-cooled object 30. The outlet of the housing 1 is equipped with a component for removing these corrosive substances. Thus, although the ion-removing material may generate corrosive substances under special operating conditions, these corrosive substances are removed at the outlet of the housing 1. This prevents corrosive substances from flowing into the liquid-cooled object 30. Therefore, the deionization device provided in this embodiment can remove both cations and anions without causing significant corrosion to the liquid-cooled object 30.

[0077] It should be noted that in the scheme where the deionization device includes multiple housings 1, refer to Figure 6 and Figure 7 As shown, along the flow direction of the coolant, the inlet of the first housing 1 serves as the inlet of the deionization device, and the outlet of the last housing 1 serves as the outlet of the deionization device. Therefore, a substance for causing corrosion to the liquid-cooled object 30 is arranged at the outlet of the last housing 1.

[0078] Deionization devices can use ion exchange resins to remove cations and anions from coolants. Ion exchange resins are a class of polymeric materials that can selectively adsorb ions from coolants through ion exchange reactions. Ion exchange resins are classified according to their functional groups into cation exchange resins and anion exchange resins.

[0079] Cation exchange resins exchange cations in solution by releasing H+ or other cations. Anion exchange resins exchange anions in solution by releasing OH- or other anions.

[0080] So, the deionization device includes cation exchange resin and anion exchange resin. The cation exchange resin releases H+, and the anion exchange resin releases OH-, thereby making the coolant pure water. Since pure water has low conductivity, the conductivity of the coolant is kept at a low level. This is the principle by which ion exchange resins remove ions from the solution.

[0081] In the liquid-cooled device 30, which includes a charging gun cable, the core of the charging gun cable is typically made of copper. Copper is sensitive to alkaline environments and is more prone to corrosion. Furthermore, the anion exchange resin used to remove anions can release alkaline substances under special operating conditions (such as high-temperature conditions). Therefore, in deionization devices that use ion exchange resin to remove cations and anions, a substance for removing alkaline substances can be placed at the liquid outlet of the housing 1.

[0082] Since the substance that corrodes the liquid-cooled object 30 is alkaline, acidic substances and / or activated carbon can be arranged at the liquid outlet of the shell 1 to remove the alkaline substances.

[0083] For example, the acidic substance may include an acidic cation exchange resin, such as a strong acid type or a weak acid type. In a scheme where the acidic substance is a cation exchange resin, the cation exchange resin is used on the one hand to remove cations from the coolant, and on the other hand to remove alkaline substances from the coolant that cause corrosion to the liquid-cooled object 30.

[0084] For example, acidic substances may include acidic hydrogen-type zeolite molecular sieves, such as strongly acidic hydrogen-type zeolite molecular sieves or weakly acidic hydrogen-type zeolite molecular sieves.

[0085] For example, acidic substances may include a first mixed resin, also known as a mixed bed resin, which is a mixture of cation exchange resin and anion exchange resin in a certain proportion. The first mixed resin is a mixed resin in which the ratio of the ion exchange capacity of the cation exchange resin to the ion exchange capacity of the anion exchange resin is greater than 3:1. For example, the ratio of the ion exchange capacity of the cation exchange resin to the ion exchange capacity of the anion exchange resin in the first mixed resin is greater than or equal to 4:1.

[0086] Ion exchange capacity, also known as exchange capacity, can be either total exchange capacity or working exchange capacity. Total exchange capacity refers to the total number of ions that a unit mass or unit volume of ion exchange resin can theoretically exchange under fully regenerated conditions. Working exchange capacity refers to the actual exchange capacity that the ion exchange resin can utilize under specific conditions in practical applications, typically ranging from 50% to 80% of the total exchange capacity.

[0087] In the first mixed resin, the ion exchange capacity of the cation exchange resin is greater than that of the anion exchange resin. Therefore, the cation exchange resin dominates in the first mixed resin, and thus exhibits the characteristics of a cation exchange resin. Consequently, the first mixed resin is acidic. Therefore, the first mixed resin can be used not only to remove alkaline substances, but also to remove cations and anions.

[0088] Therefore, refer to Figure 3 As shown, cation exchange resin or a first mixed resin is arranged at the liquid outlet of the shell 1. (Reference) Figure 4 and Figure 5 As shown, cation exchange resin, hydrogen-form zeolite molecular sieve, a first mixed resin, or activated carbon are arranged at the liquid outlet of shell 1. (Reference) Figure 6 As shown, along the flow direction of the coolant, a cation exchange resin or a first mixed resin is arranged at the outlet of the last housing 1. (Reference) Figure 7 As shown, along the flow direction of the coolant, the outlet of the last shell 1 is provided with cation exchange resin, hydrogen-type zeolite molecular sieve, first mixed resin, or activated carbon.

[0089] In one example, the substances used to remove alkaline substances may include two or more of cation exchange resin, hydrogen-type zeolite molecular sieve, first mixed resin and activated carbon, wherein the multiple substances used to remove alkaline substances may be mixed together, or the multiple substances used to remove alkaline substances may be arranged separately, such as by means of a separator.

[0090] In one example, to confine the substance used to remove alkaline substances to the outlet of housing 1, a separator needs to be placed between the substance used to remove alkaline substances and other substances in front of it. This separator allows coolant to pass through but prevents the passage of substances used to remove cations, anions, and alkaline substances. In this embodiment, "front" and "rear" refer to the flow direction of the coolant within housing 1. Specifically, in a configuration where there is only one housing 1, the reference... Figures 3 to 5 As shown, the separator is filter screen 2. In a scheme where there are multiple housings 1, refer to... Figure 6 and Figure 7 As shown, the separator is each shell 1.

[0091] For example, refer to Figure 3 As shown, the cation exchange resin or the first mixed resin is used to remove alkaline substances and cations. Therefore, a filter screen 2 is arranged between the cation exchange resin and the anion exchange resin in front of it, and a filter screen 2 is arranged between the first mixed resin and the anion exchange resin in front of it.

[0092] refer to Figure 4 As shown, cation exchange resin, hydrogen-type zeolite molecular sieve, first mixed resin, or activated carbon are used to remove alkaline substances. Therefore, a filter screen 2 is arranged between these substances and the anion exchange resin in front.

[0093] refer to Figure 5 As shown, cation exchange resin, hydrogen-type zeolite molecular sieve, first mixed resin, or activated carbon are used to remove alkaline substances. Therefore, a filter screen 2 is arranged between these substances and the second mixed resin in front.

[0094] refer to Figure 6 As shown, the deionization device includes two housings 1. A cation exchange resin or a first mixed resin is used to remove alkaline substances, so these two substances are isolated from the preceding anion exchange resin via the first housing 1 and the second housing 1. That is, the anion exchange resin is arranged in the first housing 1, and the cation exchange resin or the first mixed resin is arranged in the second housing 1.

[0095] refer to Figure 7 As shown, the deionization device includes two housings 1. A cation exchange resin, a hydrogen-form zeolite molecular sieve, a first mixed resin, or activated carbon is used to remove alkaline substances. Therefore, these substances are isolated from the preceding second mixed resin through the first housing 1 and the second housing 1. That is, the second mixed resin is arranged in the first housing 1, and the cation exchange resin, hydrogen-form zeolite molecular sieve, the first mixed resin, or activated carbon is arranged in the second housing 1.

[0096] The above is an introduction to the removal of substances that cause corrosion to the liquid-cooled object 30. The following describes the characteristics of the ion exchange resin used to remove cations and anions.

[0097] In one example, the cation exchange resin used to remove cations and the anion exchange resin used to remove anions can be two separate substances or two components in a mixed resin.

[0098] As an example, a deionization device uses mutually isolated cation exchange resins and anion exchange resins to remove cations and anions. Therefore, the deionization device includes cation exchange resins and anion exchange resins, with a separator between them. In a configuration where the deionization device includes one housing 1, the separator is a filter screen 2; in a configuration where the deionization device includes multiple housings 1, the separator is a filter screen for each housing 1.

[0099] For example, refer to Figure 3 As shown, there is one shell 1. The shell 1 includes a layer of anion exchange resin and a layer of cation exchange resin. The anion exchange resin and the cation exchange resin are separated by a filter screen 2.

[0100] For example, refer to Figure 4 As shown, there is one shell 1. The shell 1 includes multiple layers of anion exchange resin and multiple layers of cation exchange resin. Along the flow direction of the coolant, the multiple layers of anion exchange resin and multiple layers of cation exchange resin are arranged alternately, and a filter screen 2 is arranged between each layer of anion exchange resin and each layer of cation exchange resin.

[0101] As another example, a deionization device uses a mixture of cation exchange resin and anion exchange resin (referred to as a mixed resin or mixed bed resin) to remove cations and anions. In this case, the deionization device includes a second mixed resin, wherein the second mixed resin includes cation exchange resin and anion exchange resin, and the cation exchange resin and anion exchange resin are mixed in a volume ratio of 1:1 to 1:1.5.

[0102] For example, refer to Figure 5 As shown, a second mixed resin is disposed inside the housing 1, and the second mixed resin is used to remove cations and anions from the coolant. For example, see reference... Figure 7 As shown, a second mixed resin is arranged inside the first housing 1, and the second mixed resin is used to remove cations and anions from the coolant.

[0103] The above describes schemes for ion exchange resins used to remove cations and anions, arranged independently and in a mixed manner.

[0104] In one example, to ensure that the coolant entering and exiting the housing 1 can fully contact the substances within the housing 1, correspondingly, whether the housing 1 has one unit or multiple units, the housing 1 has a liquid collecting chamber (denoted as the first liquid collecting chamber 101) communicating with the liquid inlet, and a liquid collecting chamber (denoted as the second liquid collecting chamber 102) communicating with the liquid outlet. The first liquid collecting chamber 101 is separated from the adjacent substances by a filter screen 2, and the second liquid collecting chamber 102 is also separated from the adjacent substances by a filter screen 2.

[0105] There is one housing 1. The housing 1 has a first liquid collecting chamber 101 at the liquid inlet and a second liquid collecting chamber 102 at the liquid outlet. The housing 1 has a substance for removing cations and / or anions arranged at the liquid inlet, and a substance for removing alkaline substances arranged at the liquid outlet. Therefore, the first liquid collecting chamber 101 is separated from the substance for removing cations and / or anions by a filter screen 2, and the second liquid collecting chamber 102 is separated from the substance for removing alkaline substances by a filter screen 2.

[0106] For example, refer to Figure 3 As shown, the first collection chamber 101 is separated from the anion exchange resin by a filter screen 2, and the second collection chamber 102 is separated from the cation exchange resin or the first mixed resin by a filter screen 2.

[0107] refer to Figure 4 As shown, the first liquid collection chamber 101 is separated from the anion exchange resin by a filter screen 2, and the second liquid collection chamber 102 is separated from the cation exchange resin / hydrogen-type zeolite molecular sieve / first mixed resin / activated carbon by a filter screen 2.

[0108] refer to Figure 5 As shown, the first liquid collection chamber 101 is separated from the second mixed resin by a filter screen 2, and the second liquid collection chamber 102 is separated from the cation exchange resin / hydrogen-type zeolite molecular sieve / first mixed resin / activated carbon by a filter screen 2.

[0109] There are multiple shells 1. Each shell 1 has a first liquid collection chamber 101 at the liquid inlet and a second liquid collection chamber 102 at the liquid outlet. The liquid outlet of the last shell 12 is equipped with a substance for removing alkaline substances. For example, if there are n shells 1, where n≥2, then the nth shell is equipped with a substance for removing alkaline substances, and the first n-1 shells are equipped with a substance for removing cations and / or anions.

[0110] refer to Figure 6 and Figure 7As shown, there are two housings 1. The first housing 1 has a first liquid collection chamber 101 at the liquid inlet and a second liquid collection chamber 102 at the liquid outlet. The liquid outlet of the first housing 1 is connected to the liquid inlet of the second housing 1. The liquid inlet of the second housing 1 has the first liquid collection chamber 101 and the liquid outlet of the second housing 1 has the second liquid collection chamber 102.

[0111] refer to Figure 6 As shown, anion exchange resin is arranged in the first housing, and cation exchange resin or a first mixed resin is arranged in the second housing. The first collection chamber 101 and the second collection chamber 102 of the first housing are separated from the anion exchange resin by a filter screen 2, and the first collection chamber 101 and the second collection chamber 102 of the second housing are separated from the cation exchange resin or the first mixed resin by a filter screen 2.

[0112] refer to Figure 7 As shown, the first shell contains a second mixed resin, and the second shell contains a cation exchange resin / hydrogen-form zeolite molecular sieve / first mixed resin / activated carbon. The first collection chamber 101 and the second collection chamber 102 of the first shell are separated from the second mixed resin by a filter screen 2, and the first collection chamber 101 and the second collection chamber 102 of the second shell are also separated from the cation exchange resin / hydrogen-form zeolite molecular sieve / first mixed resin / activated carbon by a filter screen 2.

[0113] Based on: (1) the liquid outlet of the shell 1 is provided with a substance for removing substances that corrode the liquid-cooled object 30, (2) ion exchange resin is used to remove cations and anions, (3) alkaline substances corrode the liquid-cooled object 30, and (4) the substances used to remove alkaline substances include at least one of cation exchange resin, hydrogen-type zeolite molecular sieve, first mixed resin and activated carbon, the following structures of the deionization device are introduced.

[0114] refer to Figure 3As shown, there is one shell 1. Inside shell 1, there is a layer of cation exchange resin and a layer of anion exchange resin. The cation exchange resin is used to remove cations and alkaline substances. Therefore, the cation exchange resin is located at the outlet of shell 1, that is, next to the second collection chamber 102. The anion exchange resin is located next to the first collection chamber 101. Alternatively, it can be understood that along the flow direction of the coolant, the first collection chamber 101, the anion exchange resin, the cation exchange resin, and the second collection chamber 102 are distributed sequentially. The chamber containing the anion exchange resin is isolated from the first collection chamber 101 by a filter screen 2; the chamber containing the anion exchange resin is isolated from the chamber containing the cation exchange resin by a filter screen 2; and the chamber containing the cation exchange resin is isolated from the second collection chamber 102 by a filter screen 2.

[0115] Because the first mixed resin can also remove cations and alkaline substances, therefore, Figure 3 The cation exchange resin in the mixture can be replaced by the first mixed resin.

[0116] refer to Figure 4 As shown, there is one shell 1. Inside shell 1, multiple layers of cation exchange resin and multiple layers of anion exchange resin are arranged alternately along the flow direction of the coolant. Each layer of cation exchange resin and each layer of anion exchange resin is separated by a filter screen 2. The first liquid collecting chamber 101 is separated from the adjacent chamber containing the substance by a filter screen 2, and the second liquid collecting chamber 102 is also separated from the adjacent chamber containing the substance by a filter screen 2. The substance adjacent to the second liquid collecting chamber 102 needs to have alkaline substances removed; therefore, the substance adjacent to the second liquid collecting chamber 102 can be cation exchange resin / hydrogen-form zeolite molecular sieve / first mixed resin / activated carbon.

[0117] refer to Figure 5 As shown, there is one shell 1. Inside shell 1, there is a layer of a second mixed resin for removing cations and anions, and a layer of a substance for removing alkaline substances, such as a layer of cation exchange resin / hydrogen-form zeolite molecular sieve / first mixed resin / activated carbon. The cation exchange resin / hydrogen-form zeolite molecular sieve / first mixed resin / activated carbon layer for removing alkaline substances is arranged adjacent to the second collection chamber 102 and is isolated from the second collection chamber 102 by a filter screen 2. The second mixed resin layer is arranged adjacent to the first collection chamber 101, and the chamber containing the second mixed resin is isolated from the first collection chamber 101 by a filter screen 2.

[0118] It should be noted that, Figure 5If the material adjacent to the second liquid collection chamber 102 is a cation exchange resin or a first mixed resin, it is used not only to remove alkaline substances but also to remove cations. If the material adjacent to the second liquid collection chamber 102 is a hydrogen-type zeolite molecular sieve or activated carbon, it is used to remove alkaline substances.

[0119] refer to Figure 6 As shown, there are two housings 1, which are connected. That is, along the flow direction of the coolant, the inlet of the first housing 1 serves as the inlet of the deionization device, the outlet of the first housing 1 is connected to the inlet of the second housing 1, and the outlet of the second housing 1 serves as the outlet of the deionization device.

[0120] Continue to refer to Figure 6 As shown, the first housing 1 contains anion exchange resin for removing anions, and the second housing 1 contains cation exchange resin or a first mixed resin for removing cations and alkaline substances. The chamber containing the anion exchange resin in the first housing 1 is separated from the first collection chamber 101 and the second collection chamber 102 of the first housing 1 by a filter screen 2. Similarly, the chamber containing the cation exchange resin or the first mixed resin in the second housing 1 is separated from the first collection chamber 101 and the second collection chamber 102 of the second housing 1 by a filter screen 2.

[0121] refer to Figure 7 As shown, there are also two shells 1, and the connection between the two shells 1 is as described above. (Reference) Figure 7 As shown, the first shell 1 contains a second mixed resin for removing cations and anions, and the second shell 1 contains a cation exchange resin / hydrogen-form zeolite molecular sieve / first mixed resin / activated carbon for removing alkaline substances. The chamber containing the second mixed resin in the first shell 1 is separated from the first collection chamber 101 and the second collection chamber 102 of the first shell 1 by a filter screen 2. Similarly, the chamber containing the cation exchange resin / hydrogen-form zeolite molecular sieve / first mixed resin / activated carbon in the second shell 1 is also separated from the first collection chamber 101 and the second collection chamber 102 of the second shell 1 by a filter screen 2.

[0122] It should be noted that, Figure 7 If the second shell 1 is filled with cation exchange resin or the first mixed resin, it can be used to remove not only alkaline substances but also cations. If the second shell 1 is filled with hydrogen-form zeolite molecular sieve or activated carbon, it can be used to remove alkaline substances.

[0123] In this embodiment of the disclosure, the deionization device is equipped with a device at the outlet for removing substances that corrode the liquid-cooled object. While the deionization device, used to remove cations and anions from the coolant, may generate substances that corrode the liquid-cooled object (such as a copper core) under certain operating conditions, such as high-temperature conditions, these corrosive substances are removed at the outlet of the deionization device. Therefore, these corrosive substances are unlikely to flow into the liquid-cooled object, thus causing minimal corrosion. In this way, the deionization device maintains the conductivity of the coolant entering the liquid-cooled object within a low range while minimizing corrosion problems.

[0124] This embodiment also provides a liquid cooling system, see reference. Figure 1 and Figure 2 As shown, the liquid cooling system includes a heat exchanger 50 and the aforementioned deionization device 20. The heat exchanger 50 and the deionization device 20 are connected. The liquid cooling system is used to connect to the liquid-cooled object 30 to dissipate heat from the liquid-cooled object 30. (Reference) Figure 1 and Figure 2 As shown, the outlet of the deionization device 20 is connected to the inlet of the liquid-cooled object 30, and the outlet of the liquid-cooled object 30 is connected to the inlet of the deionization device 20. For example, in a design where the deionization device includes a housing 1, the outlet of the housing 1 is connected to the inlet of the liquid-cooled object 30, and the outlet of the liquid-cooled object 30 is connected to the inlet on the housing 1. As another example, in a design where the deionization device includes multiple housings 1, along the flow direction of the coolant, the outlet of the last housing 1 is connected to the inlet of the liquid-cooled object 30, and the outlet of the liquid-cooled object 30 is connected to the inlet of the first housing 1.

[0125] In one example, heat exchanger 50 serves as the core of the liquid cooling system, absorbing heat from the coolant to allow the low-temperature coolant to enter the liquid-cooled object 30 and absorb the heat generated by the liquid-cooled object 30. Heat exchanger 50 can be positioned between the outlet of the liquid-cooled object 30 and the inlet of the deionizer 20, or it can be positioned between the outlet of the deionizer 20 and the inlet of the liquid-cooled object 30. Figure 1 and Figure 2 The diagram illustrates the arrangement of heat exchanger 50 between the liquid outlet of liquid-cooled object 30 and the liquid inlet of deionizer 20. Further details regarding the liquid cooling system are provided above and will not be repeated here.

[0126] This embodiment also provides a charging pile, which includes a charging gun cable and the aforementioned liquid cooling system. The liquid cooling system includes the charging gun cable of the charging pile, and the wire core inside the charging gun cable directly contacts the coolant flowing in the liquid cooling system for heat exchange. The charging gun cable is referenced... Figure 1 and Figure 2As shown, it includes a positive electrode wire 31 and a negative electrode wire 32. The core of the positive electrode wire 31 and the core of the negative electrode wire 32 are in contact with the coolant in the liquid cooling system for heat exchange.

[0127] The terminology used in the embodiments of this disclosure is for illustrative purposes only and is not intended to limit the disclosure. Unless otherwise defined, the technical or scientific terms used in the embodiments of this disclosure should be understood in their ordinary sense by one of ordinary skill in the art to which this disclosure pertains. The terms "first," "second," and similar terms used in this specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, "a" or "an," and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising," "including," and similar terms mean that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including" and their equivalents, but do not exclude other elements or objects. "Upper," "lower," "left," "right," etc., are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly. "A plurality" refers to two or more, unless otherwise expressly defined.

[0128] The above description is merely an optional embodiment of this disclosure and is not intended to limit this disclosure. Any modifications, equivalent substitutions, improvements, etc., made within the principles of this disclosure should be included within the protection scope of this disclosure.

Claims

1. A deionization device for use in a liquid cooling system, characterized in that, The deionization device is used to remove cations and anions from the coolant of the liquid cooling system. The deionization device includes a housing with an inlet and an outlet. The inlet is for the coolant to flow in, and the outlet is for the coolant to flow out to the liquid-cooled object. The housing is provided with a substance for removing substances that cause corrosion to the liquid-cooled object at the location of the outlet.

2. The deionization device according to claim 1, characterized in that, The substance that corrodes the liquid-cooled object is alkaline, and the liquid outlet is provided with acidic substances or activated carbon for removing alkaline substances.

3. The deionization device according to claim 2, characterized in that, The acidic substance includes a cation exchange resin, which is used to remove cations and alkaline substances from the coolant.

4. The deionization device according to claim 2, characterized in that, The acidic substance includes hydrogen-type zeolite molecular sieves.

5. The deionization device according to claim 2, characterized in that, The acidic substance includes a first mixed resin, which comprises a cation exchange resin and an anion exchange resin, wherein the ratio between the ion exchange capacity of the cation exchange resin and the ion exchange capacity of the anion exchange resin is greater than 3:

1.

6. The deionization device according to claim 1, characterized in that, The deionization device further includes a second mixed resin for removing cations and anions from the coolant, and a separator is provided between the second mixed resin and the substance used to remove corrosion of the liquid-cooled object.

7. The deionization device according to claim 3, characterized in that, The deionization device further includes anion exchange resin, which is used to remove anions from the coolant, and a separator is provided between the anion exchange resin and the cation exchange resin.

8. The deionization device according to claim 7, characterized in that, The deionization device includes multiple layers of cation exchange resin and multiple layers of anion exchange resin. Along the direction of coolant flow, the multiple layers of anion exchange resin and multiple layers of cation exchange resin are arranged alternately, and a separator is provided between each layer of anion exchange resin and each layer of cation exchange resin.

9. The deionization device according to any one of claims 6 to 8, characterized in that, The number of housings is one, and the separator is a filter screen.

10. The deionization device according to claim 9, characterized in that, The housing also includes two liquid collection chambers. Along the direction of coolant flow, one liquid collection chamber, a substance for removing cations and anions from the coolant, a substance for removing substances that cause corrosion to the liquid-cooled object, and the other liquid collection chamber are arranged in sequence. The housing portion corresponding to one liquid collection chamber is provided with the liquid inlet, and the housing portion corresponding to the other liquid collection chamber is provided with the liquid outlet.

11. The deionization device according to any one of claims 6 to 8, characterized in that, The number of housings is n, where n≥2. The n housings are connected sequentially along the direction of coolant flow. The inlet of the first housing serves as the inlet of the deionization device, and the outlet of the nth housing serves as the outlet of the deionization device. The separator is for each housing.

12. A liquid cooling system, characterized in that, The liquid cooling system includes a heat exchanger and a deionization device as described in any one of claims 1 to 11; The heat exchanger and the deionization device are connected, and the liquid cooling system is used to connect the liquid-cooled object.

13. A charging pile, characterized in that, The charging pile includes a charging gun cable and the liquid cooling system as described in claim 12. The liquid cooling object includes the charging gun cable, and the wire core inside the charging gun cable is immersed in the coolant and exchanges heat with the coolant.

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