Deionizer, cooling system, and vehicle

Abstract

The embodiment of the present application relates to the technical field of vehicles, and discloses a deionizer, a cooling system and a vehicle, the deionizer comprising a shell and a filter element. The shell is provided with a first inlet and a first outlet, and the first inlet is used for introducing cooling liquid into the shell. The filter element is arranged in the shell and connected with the shell. The filter element is provided with cation and anion exchange resins, which are used for filtering cations and anions in the cooling liquid flowing through the filter element. In the vertical direction, the top of the filter element is provided with a second inlet, and the bottom of the filter element is provided with a second outlet, the second inlet is communicated with the first inlet, and the second outlet is communicated with the first outlet. The technical scheme of the present application can solve the problem that the cation and anion resins are prone to stratification.

Description

Technical Field

[0001] This invention relates to the field of vehicle technology, and more specifically to a deionizer, a cooling system, and a vehicle. Background Technology

[0002] The battery is a crucial component that powers a vehicle. To ensure the battery's operating temperature, it is usually cooled using coolant. However, with prolonged use of the vehicle, the content of anions and cations accumulated in the coolant increases, which can easily lead to leakage or short circuits in the battery through the coolant.

[0003] The prior art provides a deionizer, including a housing, a first flow channel, and a second flow channel; the housing defines a chamber, and the housing is also provided with a housing inlet and a housing outlet communicating with the chamber; the first flow channel is disposed in the chamber, and its two ends are respectively connected to the housing inlet and the housing outlet; the second flow channel is also disposed in the chamber, and its two ends are respectively connected to the housing inlet and the housing outlet; wherein, the first flow channel is provided with deionized particles suitable for adsorbing ions in the coolant.

[0004] Although the proposed solution discloses a technical approach for adsorbing ions in coolant using deionized particles, it does not specify the type of deionized particles. When adsorbing ions in coolant using anionic and cation exchange resins, the resins are prone to stratification, which affects the adsorption effect on ions in the coolant. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the purpose of this application is to provide a deionizer, a cooling system and a vehicle, which aims to solve the problem of easy delamination of anion and cation resins.

[0006] In a first aspect, embodiments of this application provide a deionizer, including a housing and a filter element. The housing has a first inlet and a first outlet, the first inlet being used to introduce coolant into the housing. The filter element is disposed inside the housing and connected to the housing. The filter element contains anion and cation exchange resins, which are used to filter anions and cations in the coolant flowing through the filter element. Vertically, the top of the filter element has a second inlet, and the bottom of the filter element has a second outlet, the second inlet communicating with the first inlet and the second outlet communicating with the first outlet.

[0007] According to the above technical means, after the coolant flows into the housing through the first inlet, it can flow into the filter element through the second inlet, thereby contacting the anion and cation exchange resin in the filter element. The anion and cation exchange resin filters the anions and cations in the coolant. The filtered coolant can be discharged from the filter element through the second outlet, and then discharged from the housing through the first outlet, so as to achieve the filtration of anions and cations in the coolant.

[0008] In the above process, since the second inlet and the second outlet of the filter element are arranged vertically, the coolant inside the filter element can flow vertically from top to bottom. This allows the coolant to impact the anion and cation exchange resins and apply pressure to them, preventing the anion and cation exchange resins from separating due to their different densities. This ensures the filter element's filtration effect on anions and cations in the coolant, thereby guaranteeing the deionizer's performance.

[0009] In some embodiments, the filter element includes a cylindrical body and a plurality of flow equalization plates. The cylindrical body is connected to the housing, and the axial direction of the cylindrical body is aligned with the vertical direction. The plurality of flow equalization plates are disposed within the cylindrical body and connected to the cylindrical body. The thickness direction of the flow equalization plates is aligned with the axial direction of the cylindrical body, and the flow equalization plates are provided with a plurality of guide holes.

[0010] Multiple flow equalization plates are arranged at intervals along the axial direction of the cylinder, dividing the internal space of the cylinder into multiple receiving sub-cavities, each of which is equipped with anion and cation exchange resin.

[0011] Based on the aforementioned technical means, by setting up a flow equalization plate, the anion and cation exchange resins can be confined within multiple sub-cavities, preventing them from moving between each other and thus further limiting resin stratification. Simultaneously, it allows the coolant to flow more dispersedly into the multiple sub-cavities, enabling the anion and cation exchange resins to more fully adsorb anions and cations in the coolant, thereby improving the filter element's filtration efficiency.

[0012] In some embodiments, the internal space of the filter element includes a plurality of accommodating sub-cavities arranged in a vertical direction. The filter element also includes a plurality of flow guides, each accommodating sub-cavity having a flow guide for guiding the coolant and anion / cation exchange resins within the filter element to flow in a spiral manner in a vertical direction.

[0013] Based on the aforementioned technical means, during the flow of coolant, the continuous deflection of the coolant agitates and tumbles the anion and cation exchange resins, thereby continuously mixing the anion and cation exchange resins together. This prevents stratification of the anion and cation exchange resins, allowing them to be more evenly distributed in each chamber, thus enabling more thorough filtration of the coolant and further improving the filtration efficiency of the anion and cation exchange resins in each chamber. In some embodiments, the filter element further includes a cylindrical body and a central shaft. The cylindrical body is connected to the housing, and its axial direction is aligned with the vertical direction. The internal space of the cylindrical body includes a plurality of receiving sub-cavities arranged along the axial direction of the cylindrical body. The central shaft is aligned with the axial direction of the cylindrical body and is connected to the cylindrical body. Each guide element includes a plurality of blades arranged around the central shaft and connected to the central shaft.

[0014] Based on the above technical means, multiple blades can guide the flow direction of the coolant and the anion and cation exchange resins. The multiple blades are arranged around a central axis, which allows the coolant and anion and cation exchange resins to flow more stably in a spiral shape, thereby ensuring that the anion and cation exchange resins are evenly distributed within the multiple cavities. In some embodiments, for any two adjacent flow guides, one flow guide guides the coolant and cation and anion exchange resins to flow along a first spiral direction, and the other flow guide guides the coolant and cation and anion exchange resins to flow along a second spiral direction, with the first spiral direction and the second spiral direction being opposite.

[0015] Based on the above technical means, the disturbance effect on the coolant can be further improved, so that when the coolant drives the anion and cation exchange resins to tumble, the anion and cation exchange resins can be mixed more fully, thereby further avoiding the separation of anion and cation exchange resins.

[0016] In some embodiments, each guide element includes a plurality of blades, which are circumferentially spaced along a central axis, and each blade is axially inclined relative to the central axis. For any two adjacent guide elements, the upper and lower ends of the blades of one guide element are arranged sequentially along a first helical direction, and the upper and lower ends of the blades of the other guide element are arranged sequentially along a second helical direction, so that the two adjacent guide elements guide the coolant and the anion and cation exchange resin to flow in opposite directions in a helical manner.

[0017] According to the above-mentioned technical means, the coolant and anion and cation exchange resins in the two accommodating sub-cavities can be guided to flow in opposite directions in a spiral shape by the blades on the two guide members with opposite tilting directions, thereby improving the disturbance effect on the coolant and avoiding the stratification of anion and cation exchange resins.

[0018] In some embodiments, the filter element includes a cylindrical body connected to a housing, and filter material is disposed inside the cylindrical body. A second inlet is formed by an opening at the upper end of the cylindrical body, and a second outlet is formed by an opening at the lower end of the cylindrical body. A first outlet is provided at the bottom of the housing, the internal space of the cylindrical body covers the first outlet, and the lower end of the cylindrical body is sealed to the housing to allow the second outlet to communicate with the first outlet. The inner wall surfaces of the filter element and the housing define a coolant flow channel surrounding the filter element, the first inlet communicates with the coolant flow channel, and the upper end of the cylindrical body is spaced apart from the inner wall surface of the housing to allow the second inlet to communicate with the coolant flow channel.

[0019] According to the above technical means, the filtered coolant can be directly discharged from the casing, which can avoid the filtered coolant from mixing with the unfiltered coolant, thereby ensuring that the coolant discharged from the casing has a low conductivity, so as to avoid other components from leaking electricity, short circuits and other faults through the coolant.

[0020] In some embodiments, the deionizer further includes a heating element disposed within a coolant flow channel and surrounding the filter element, the heating element being used to heat the coolant.

[0021] This increases the temperature of the coolant flowing into the filter element, thereby enhancing the adsorption effect of the cation and anion exchange resins in the filter element on anions and cations in the coolant, and thus improving the filtration effect of the filter element on the coolant.

[0022] In some embodiments, a first inlet is located at the lower end of the housing and in a vertical direction, situated below the heating element, and a second inlet is located above the heating element. And / or, the housing also has a third outlet located at the upper end of the housing and above the heating element, the third outlet communicating with a coolant flow channel.

[0023] Based on the aforementioned technical means, it can be ensured that the coolant flows entirely through the heating element before entering the filter element, thereby increasing the amount of coolant that the heating element can heat, improving the heating effect of the heating element on the coolant in the coolant flow channel, and thus improving the filtration effect of the filter element on the coolant. By setting a third outlet, when the coolant flow rate is large and the coolant pressure in the housing is high, excess coolant in the coolant flow channel can be discharged from the housing through the third outlet, thereby avoiding excessive pressure of the coolant entering the filter element, and preventing excessive impact of the coolant on the anion and cation exchange resins, which could lead to stratification of the anion and cation exchange resins.

[0024] In some embodiments, the housing includes a first housing portion, a second housing portion, and a fixing plate. The first and second housing portions form a mounting cavity, and the fixing plate is disposed within the mounting cavity and connected to the first and / or second housing portions. One side surface of the fixing plate and the first housing portion form a first cavity, and the other side surface of the fixing plate and the second housing portion form a second cavity. A filter element is disposed within the first cavity. The deionizer also includes a connector, which is at least partially disposed within the second cavity, for connecting to an external power source and for electrical connection to a heating element.

[0025] According to the above-mentioned technical means, at least a portion of the connector can be disposed in the second cavity, and the second shell provides protection for the connector. Compared with disposing of the connector in the first cavity, there is no need to install waterproof devices or other components on the connector, and it can prevent leakage of electricity from the connector, ensuring the safety of the electrical connection between the connector and the heating element.

[0026] Secondly, this application provides a cooling system including a cooling circuit, a pump body, and the aforementioned deionizer, wherein the pump body and the deionizer are connected in series in the cooling circuit, and the cooling circuit is suitable for cooling a battery.

[0027] Thirdly, this application provides a vehicle including the aforementioned cooling system. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this application or the background art, the accompanying drawings used in the embodiments of this application will be described below.

[0029] Figure 1 This is a schematic diagram of the structure of a vehicle disclosed in an embodiment of this application; Figure 2 This is a schematic diagram of the structure of a deionizer disclosed in an embodiment of this application; Figure 3 This is a schematic diagram of another deionizer disclosed in an embodiment of this application; Figure 4 for Figure 2 Schematic diagram of the cross section at point AA; Figure 5 This is an exploded structural diagram of a deionizer disclosed in an embodiment of this application; Figure 6 This is an exploded structural diagram of a filter element disclosed in an embodiment of this application; Figure 7 This is a schematic diagram of the structure of a flow equalization plate disclosed in an embodiment of this application; Figure 8 This is a schematic diagram of the structure of a flow guide disclosed in an embodiment of this application; Figure 9 This is a schematic diagram of another flow guide disclosed in an embodiment of this application; Figure 10 This is a schematic diagram of the structure of a heating element disclosed in an embodiment of this application; Figure 11 This is a schematic diagram of the structure of a heating element and a fixing plate disclosed in an embodiment of this application; Figure 12 This is a schematic diagram of another heating element and fixing plate disclosed in an embodiment of this application; Figure 13 for Figure 3 Schematic diagram of the cross section at point BB; Figure 14 This is a schematic diagram of the structure of a first end plate disclosed in an embodiment of this application; Figure 15 This is a schematic diagram of the structure of a first end plate and a support rod disclosed in an embodiment of this application; Figure 16 This is a schematic diagram of the structure of a second end plate disclosed in an embodiment of this application; Figure 17 for Figure 16 A magnified view of a portion of point A in the middle; Figure 18 This is a schematic diagram of the structure of another deionizer disclosed in an embodiment of this application; Figure 19This is a schematic diagram of the structure of a first sub-shell portion disclosed in an embodiment of this application; Figure 20 This is a schematic diagram of the structure of a second shell portion disclosed in an embodiment of this application; Figure 21 for Figure 18 Schematic diagram of the cross section at point C; Figure 22 for Figure 21 A magnified view of a portion of point B in the middle.

[0030] Explanation of reference numerals in the attached figures: 100 - Vehicle; 10 - Deionizer; 1-Shell; 11-First shell section; 111-First cavity; 112-First inlet; 113-First outlet; 114-First sub-shell section; 115-Second sub-shell section; 116-Coolant flow channel; 117-Third outlet; 12-Second shell; 121-Second cavity; 13-Fixing plate; 14-First sealing ring; 15-Second sealing ring; 17-Third sealing ring; 18-Fourth sealing ring; 19-Limiting plate; 2-Filter element; 21-Cylinder; 211-Receiving cavity; 22-First end plate; 221-Support rod; 23-Second end plate; 24-Flow guide; 241-Blade; 25-Flow equalization plate; 26 - Central axis; 261 - First connecting segment; 262 - Second connecting segment; 27-First connector; 271-First connector post; 272-Connector plate; 28-Second connector; 281-Second connector post; 291-Cation and anion exchange resin; 292-Filter screen; 3-Heating element; 4-Temperature sensor; 5-Connector; 61-Fasteners; 62-Insulating sleeves; 20 - Body. Detailed Implementation

[0031] The terms "first," "second," etc., are used for descriptive purposes only and have no sequential or technical meaning, nor should they be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Directional terms used in this application, such as "upper," "lower," "front," "rear," "left," "right," "inner," and "outer," are merely for reference to the orientation shown in the accompanying drawings. The use of directional terms is for better and clearer explanation and understanding of this application, and does not indicate the orientation of the referred device or component in an actual application scenario.

[0032] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. "Fixed connection" refers to a connection where the relative positional relationship remains unchanged after connection. "Rotary connection" refers to a connection where the two parts can rotate relative to each other after connection. "Sliding connection" refers to a connection where the two parts can slide relative to each other after connection.

[0033] The terms "parallel" and "perpendicular" are relative to the current technological level, not absolute mathematical definitions. Slight deviations are permissible; approximations of parallelism or perpendicularity are acceptable. For example, "A and B are parallel" means that A and B are parallel or approximately parallel, with the angle between them ranging from 0 to 5 degrees. Similarly, "A and B are perpendicular" means that A and B are perpendicular or approximately perpendicular, with the angle between them ranging from 85 to 95 degrees.

[0034] The embodiments of this application are described below with reference to the accompanying drawings.

[0035] like Figures 1 to 4 As shown, the vehicle 100 includes a body 20 and a battery, specifically a fuel cell (such as a hydrogen fuel cell, methanol fuel cell, etc.). The battery is connected to the body 20 and can power other components on the body 20, such as motors, displays, air conditioning systems, etc.

[0036] The vehicle 100 also includes a cooling system, which includes a cooling circuit containing coolant for cooling the battery. The cooling system can also cool the motor, engine, and other components.

[0037] The cooling system also includes a pump body and a deionizer 10, which are connected in series in the cooling circuit. The operation of the pump body can drive the coolant in the cooling circuit to flow along the cooling circuit. The deionizer 10 is used to remove anions and cations in the coolant to reduce the conductivity of the coolant and prevent the components on the vehicle body 20 from experiencing leakage, short circuits or other faults through the cooling circuit, thus ensuring the insulation safety and stable operation of the vehicle 100.

[0038] The deionizer 10 typically contains cation and anion exchange resins 291. The anion exchange resin in the cation and anion exchange resin 291 adsorbs anions in the coolant, and the cation exchange resin in the cation and anion exchange resin 291 adsorbs cations in the coolant, thereby filtering the coolant. However, since the density of the anion exchange resin is less than that of the cation exchange resin, the cation exchange resin is prone to depositing below the anion exchange resin, causing the cation and anion exchange resins 291 to separate into layers, which affects the normal function of the cation and anion exchange resins 291.

[0039] Based on this, such as Figures 1 to 4 As shown, the deionizer 10 provided in this application includes a housing 1 and a filter element 2. The housing 1 is provided with a first inlet 112 and a first outlet 113, and the first inlet 112 is used to introduce coolant into the housing 1.

[0040] The filter element 2 is disposed inside and connected to the housing 1. The filter element 2 contains anion and cation exchange resin 291, which is used to filter anions and cations in the coolant flowing through the filter element 2.

[0041] Along the vertical direction, the top of the filter element 2 is provided with a second inlet, and the bottom of the filter element 2 is provided with a second outlet. The second inlet is connected to the first inlet 112, and the second outlet is connected to the first outlet 113.

[0042] Thus, after the coolant flows into the housing 1 through the first inlet 112, it can flow into the filter element 2 through the second inlet, thereby contacting the anion and cation exchange resin 291 in the filter element 2. The anion and cation exchange resin 291 filters the anions and cations in the coolant. The filtered coolant can be discharged from the filter element 2 through the second outlet, and then discharged from the housing 1 through the first outlet 113, so as to achieve the filtration of anions and cations in the coolant.

[0043] During the above process, since the second inlet and the second outlet of the filter element 2 are arranged vertically, the coolant in the filter element 2 can flow vertically from top to bottom. In this way, the coolant can impact the anion and cation exchange resins 291 to apply pressure to the anion and cation exchange resins 291, preventing the anion exchange resin and cation exchange resin in the anion and cation exchange resins 291 from separating due to different densities. This ensures the filtration effect of the filter element 2 on the anions and cations in the coolant, and thus ensures the performance of the deionizer 10.

[0044] Specifically, the coolant inside the filter element 2 can flow vertically from top to bottom, which can apply downward pressure to the anion exchange resin to limit the anion exchange resin from accumulating at the top of the filter element 2, so that the anion exchange resin is evenly distributed inside the filter element 2, thereby limiting the deposition of cation exchange resin at the bottom of the filter element 2, and thus limiting the stratification of anion and cation exchange resins 291.

[0045] In some embodiments, such as Figures 3 to 8 As shown, the filter element 2 includes a cylindrical body 21 and multiple flow equalization plates 25. The cylindrical body 21 is connected to the housing 1, and the axial direction of the cylindrical body 21 is consistent with the vertical direction. The multiple flow equalization plates 25 are all disposed inside the cylindrical body 21 and connected to the cylindrical body 21. The thickness direction of the flow equalization plates 25 is consistent with the axial direction of the cylindrical body 21, and the flow equalization plates 25 are provided with multiple flow guide holes.

[0046] Multiple flow equalization plates 25 are arranged at intervals along the axial direction of the cylinder 21, and divide the internal space of the cylinder 21 into multiple receiving sub-cavities 211, each of which is provided with anion and cation exchange resin 291.

[0047] The flow equalization plate 25 is provided with multiple flow guide holes, which enable the coolant to flow from top to bottom into multiple receiving sub-cavities 211, so that the anions and cations in the coolant can be filtered through the anion and cation exchange resins 291 in the multiple receiving sub-cavities 211.

[0048] By setting the flow equalization plate 25, the anion and cation exchange resin 291 can be confined within multiple accommodating sub-cavities 211, preventing the anion and cation exchange resin 291 from moving between the multiple accommodating sub-cavities 211, thus further restricting the stratification of the anion and cation exchange resin 291.

[0049] Meanwhile, by guiding the coolant through multiple flow holes, the coolant can be more dispersed and flow into multiple receiving chambers 211, so that the coolant can fully contact the anion and cation exchange resins 291 in the multiple receiving chambers 211, so that the anion and cation exchange resins 291 can more fully adsorb the anions and cations in the coolant and improve the filtration effect of the filter element.

[0050] In addition, by dividing the internal space of the cylinder 21 into multiple receiving sub-cavities 211 and setting anion and cation exchange resins 291 in each receiving sub-cavity 211, compared to setting the anion and cation exchange resins 291 in multiple receiving sub-cavities 211 in the same cavity, the number of anion and cation exchange resins 291 in a single receiving sub-cavity 211 is less. During the flow of coolant, it can more effectively prevent the anion exchange resin and cation exchange resin in the anion and cation exchange resins 291 from stratifying due to different densities. This makes the anion and cation exchange resins 291 more evenly distributed in multiple receiving sub-cavities 211, thereby further improving the filtration effect of the filter element 2 on anions and cations in the coolant.

[0051] In some embodiments, such as Figure 6 , Figure 7As shown, the filter element 2 also includes multiple filter screens 292. Each flow equalization plate 25 is provided with a filter screen 292. By setting the filter screen 292 on the flow equalization plate 25, the flow of impurities in the coolant to the multiple receiving sub-cavities 211 can be restricted, ensuring the normal function of the filter element 2. At the same time, it can prevent the anion and cation exchange resins 291 in two adjacent receiving sub-cavities 211 from moving between each other, so as to ensure the filtration effect of the anion and cation exchange resins 291 in each receiving sub-cavity 211 on the coolant.

[0052] For example, multiple guide holes can be arranged in an array, in a straight line, or in a ring, etc.

[0053] Of course, in some other embodiments, the internal space of the cylinder 21 may also form only one cavity, in which the anion and cation exchange resins 291 are disposed.

[0054] In some embodiments, the filter element 2 further includes a plurality of sealing members. Along the circumference of the cylinder 21, one sealing member surrounds the flow equalization plate 25 and is sealed between the flow equalization plate 25 and the inner wall surface of the cylinder 21.

[0055] This allows multiple sealing components to block the gaps between the inner walls of the multiple flow equalizers 25 and the cylinder 21, ensuring that all the coolant can flow through the guide holes on the flow equalizers 25, thus ensuring the flow equalizers 25 have a good guiding effect on the coolant.

[0056] For example, the sealing element can be a sealing ring fixed between the flow equalization plate 25 and the cylinder 21, or it can be a sealant provided between the flow equalization plate 25 and the cylinder 21.

[0057] In some embodiments, such as Figures 3 to 8 As shown, the filter element 2 also includes multiple flow guides 24. Each receiving sub-cavity 211 is provided with a flow guide 24. The flow guide 24 is used to guide the coolant and anion and cation exchange resin 291 in the filter element 2 to flow in a spiral shape in the vertical direction.

[0058] Of course, in some other embodiments, the filter element 2 may not be provided with the flow guide 24, so that the coolant flows vertically inside the filter element 2.

[0059] By setting the flow guide 24, the flow guide 24 can guide the coolant during the flow of the coolant in the filter element 2, so that the coolant can flow in the vertical direction and also continuously deflect in the direction intersecting the vertical direction, so that the coolant flows in a spiral shape in the receiving cavity 211.

[0060] In this way, during the flow of coolant, the continuous deflection of the coolant can disturb the cation and anion exchange resins 291, causing them to tumble continuously. This allows the anion and cation exchange resins in the cation and anion exchange resins 291 to mix together continuously, preventing the cation and anion exchange resins 291 from separating into layers. The cation and anion exchange resins 291 can be more evenly distributed in each receiving sub-cavity 211, which can more fully filter the coolant and further improve the filtration effect of the cation and anion exchange resins 291 in each receiving sub-cavity 211 on the coolant.

[0061] In some embodiments, such as Figure 4 , Figure 8 , Figure 9 As shown, for any two adjacent flow guides 24, one flow guide 24 guides the coolant and the anion and cation exchange resin 291 to flow in the first spiral direction, and the other flow guide 24 guides the coolant and the anion and cation exchange resin 291 to flow in the second spiral direction. The first spiral direction and the second spiral direction are opposite.

[0062] As the coolant flows within the filter element 2, its flow direction changes as it moves from one receiving chamber 211 to another. This further enhances the agitation effect on the coolant, causing the anion and cation exchange resins 291 to tumble. This allows the anion and cation exchange resins in the resins 291 to mix more thoroughly, further preventing stratification and ensuring that the resins 291 are more evenly distributed within the multiple receiving chambers 211. This improves the filtration efficiency of the resins 291 within each receiving chamber 211.

[0063] Of course, in some other embodiments, for any two adjacent flow guides 24, both flow guides 24 can guide the coolant and the anion and cation exchange tree to flow along the first spiral direction or the second spiral direction.

[0064] In some embodiments, such as Figures 6 to 9 As shown, the filter element 2 also includes a cylindrical body 21 and a central shaft 26. The cylindrical body 21 is connected to the housing 1, and the axial direction of the cylindrical body 21 is aligned with the vertical direction. The internal space of the cylindrical body 21 includes a plurality of receiving sub-cavities 211 arranged along the axial direction of the cylindrical body 21. The axial direction of the central shaft 26 is aligned with the axial direction of the cylindrical body 21, and the central shaft 26 is connected to the cylindrical body 21.

[0065] Each guide element 24 includes a plurality of blades 241 arranged around and connected to a central axis 26.

[0066] In this way, the flow direction of the coolant and the anion and cation exchange resin 291 can be guided by multiple blades 241. The multiple blades 241 are arranged around the central axis 26, which can make the coolant and the anion and cation exchange resin 291 flow more stably in a spiral shape, thereby ensuring that the anion and cation exchange resin 291 can be evenly distributed in multiple accommodating sub-cavities 211.

[0067] Meanwhile, by connecting multiple blades 241 to the central shaft 26, during the assembly of the filter element 2, multiple guide elements 24 and the central shaft 26 can be fixed together first, and then the central shaft 26 can be connected to the housing 1. This can achieve the fixation of the central shaft 26, multiple guide elements 24 and the housing 1, which simplifies the assembly process of the filter element 2, facilitates the assembly of the filter element 2, and also facilitates the maintenance and repair of the filter element 2.

[0068] In some other embodiments, the flow guide 24 may also include a flow guide plate connected to the cylinder 21, which guides the flow direction of the coolant and the anion and cation exchange resins 291.

[0069] In some embodiments, such as Figures 6 to 9 As shown, multiple blades 241 are arranged circumferentially along the central axis 26, and each blade 241 is inclined relative to the central axis 26.

[0070] For any two adjacent guide elements 24, the upper and lower ends of the blades 241 of one guide element 24 are arranged in sequence along the first spiral direction, and the upper and lower ends of the blades 241 of the other guide element 24 are arranged in sequence along the second spiral direction, so that the two adjacent guide elements 24 guide the coolant and the anion and cation exchange resin 291 to flow in opposite directions in a spiral shape.

[0071] For two adjacent guide vanes 24, the upper and lower ends of the blades 241 of the two guide vanes 24 are arranged along the first spiral direction and the second spiral direction, respectively, which enables the blades 241 of the two guide vanes to tilt in opposite directions.

[0072] In this way, the coolant and cation and anion exchange resins 291 in the two receiving sub-cavities 211 can be guided by the blades 241 on the two guide members 24 with opposite tilting directions to flow in a spiral in opposite directions, which improves the disturbance effect on the coolant, so that the anion exchange resin and cation exchange resin in the cation and anion exchange resin 291 can be mixed more fully, avoiding the stratification of the cation and anion exchange resins 291, and thus making the cation and anion exchange resins 291 more evenly distributed in the multiple receiving sub-cavities 211.

[0073] Of course, in some other embodiments, guide plates with different inclination directions can be connected in two adjacent receiving sub-cavities 211, so that the coolant and anion and cation exchange resins 291 in different receiving sub-cavities 211 flow in different directions.

[0074] In some embodiments, such as Figure 4 , Figure 6 As shown, the upper opening of the cylinder 21 forms a second inlet, and the lower opening of the cylinder 21 forms a second outlet.

[0075] The bottom of the shell 1 is provided with a first outlet 113, the internal space of the cylinder 21 covers the first outlet 113, and the lower end of the cylinder 21 is sealed to the shell 1 so that the second outlet communicates with the first outlet 113.

[0076] The filter element 2 and the inner wall of the housing 1 define a coolant flow channel 116 surrounding the filter element 2. The first inlet 112 is connected to the coolant flow channel 116. The upper end of the cylinder 21 is spaced apart from the inner wall of the housing 1 so that the second inlet is connected to the coolant flow channel 116.

[0077] With the above configuration, the lower end shell 1 of the cylinder 21 blocks the first outlet 113. The coolant flows into the filter element 2, is filtered by the filter element 2, and is discharged from the lower end of the cylinder 21. It can then flow directly into the first outlet 113 and be discharged from the shell 1.

[0078] The filtered coolant can be directly discharged from housing 1, which avoids the mixing of filtered coolant with unfiltered coolant, thus ensuring that the coolant discharged from housing 1 has a low conductivity, so as to avoid other components from leaking electricity, short circuits or other failures due to the coolant.

[0079] Furthermore, by making the coolant flow channel 116 surround the cylinder 21, the coolant can flow into the second inlet along the second inlet in the circumferential direction of the cylinder 21, which facilitates the flow of coolant into the filter element 2, thereby facilitating the filter element 2 to filter the coolant.

[0080] In some other embodiments, the outer peripheral surface of the cylinder 21 can be connected to the housing 1, and the coolant flow channel 116 and the first inlet 112 are both located on the upper side of the cylinder 21. In this way, the coolant can flow into the coolant flow channel 116 on the upper side of the cylinder 21 through the first inlet 112, and then flow directly into the filter element 2 through the second inlet, which also enables the filter element 2 to filter the coolant.

[0081] In some embodiments, such as Figure 4 , Figure 5 as well as Figures 10 to 12 As shown, the deionizer 10 also includes a heating element 3, which is disposed in the coolant flow channel 116 and surrounds the filter element 2. The heating element 3 is used to heat the coolant.

[0082] By setting the heating element 3, the coolant can be heated by the heating element 3 after flowing into the coolant channel 116, and then flow into the filter element 2. This can increase the temperature of the coolant flowing into the filter element 2, thereby improving the adsorption effect of the anion and cation exchange resin 291 in the filter element 2 on the anions and cations in the coolant, and thus improving the filtration effect of the filter element 2 on the coolant.

[0083] Meanwhile, the heating element 3 surrounds the filter element 2, which can heat the coolant around the filter element 2 to further increase the temperature of the coolant flowing into the filter element 2, thereby further improving the filtration effect of the filter element 2 on the coolant.

[0084] Of course, in some other embodiments, the heating element 3 may also be located on one side of the cylinder 21 in the radial direction.

[0085] In some embodiments, the minimum distance between the heating element 3 and the filter element 2 is greater than or equal to 2 mm and less than or equal to 5 mm.

[0086] For example, the minimum spacing between the heating element 3 and the filter element 2 can be 2mm, 3mm, 4mm, 5mm, etc.

[0087] When the minimum distance between the heating element 3 and the filter element 2 is within the above range, the heating effect of the heating element 3 on the filter element 2 can be improved, thereby further improving the filtration effect of the filter element 2 on the coolant. At the same time, it can prevent the heating element 3 and the filter element 2 from being too close, thus preventing the temperature of the filter element 2 from exceeding the heat resistance range of the anion and cation exchange resin 291 and ensuring the normal function of the anion and cation exchange resin 291.

[0088] In some embodiments, such as Figure 3 , Figure 4 , Figure 13 As shown, the deionizer 10 also includes a temperature sensor 4, which is connected to the housing 1 and partially located in the coolant flow channel 116, for detecting the temperature of the heating element 3.

[0089] In some embodiments, the distance between the detection terminal of the temperature sensor 4 and the heating element 3 is ( Figure 13 The spacing D shown is greater than or equal to 2 mm and less than or equal to 4 mm.

[0090] For example, the distance between the detection terminal of the temperature sensor 4 and the heating element 3 can be 2mm, 2.5mm, 3mm, 3.5mm, 4mm, etc.

[0091] When the distance between the detection terminal of the temperature sensor 4 and the heating element 3 is within the above range, the temperature sensor 4 can ensure the detection effect of the temperature of the heating element 3, and can avoid the temperature of the detection terminal of the temperature sensor 4 from being too high and damaged.

[0092] In some embodiments, such as Figure 4 As shown, the first inlet 112 is located at the lower end of the housing 1 and is in the vertical direction. The first inlet 112 is located on the lower side of the heating element 3, and the second inlet is located on the upper side of the heating element 3.

[0093] By arranging the second inlet, heating element 3, and first inlet 112 in a vertical direction, the coolant flows into the coolant channel 116 through the first inlet 112 and then flows upward along the coolant channel 116. During the upward flow, it passes through the heating element 3, so that the heating element 3 heats the coolant. The heated coolant can continue to flow upward and then enter the filter element 2 through the second inlet.

[0094] This ensures that the coolant flows through the heating element 3 before flowing into the filter element 2, thereby increasing the amount of coolant that the heating element 3 can heat, improving the heating effect of the heating element 3 on the coolant in the coolant flow channel 116, and thus improving the filtration effect of the filter element 2 on the coolant.

[0095] Of course, in some other embodiments, the first inlet 112 may also be located at the upper end of the housing 1, and the heating element 3 may be located below the first inlet 112 and above the second inlet.

[0096] In some embodiments, such as Figure 4 , Figure 13 As shown, the housing 1 is also provided with a third outlet 117, which is located at the upper end of the housing 1 and on the upper side of the heating element. The third outlet 117 is connected to the coolant flow channel 116.

[0097] By setting a third outlet 117, when the coolant flow rate is large and the coolant pressure in the housing 1 is high, excess coolant in the coolant flow channel 116 can be discharged from the housing 1 through the third outlet 117, thereby avoiding excessive pressure of the coolant entering the filter element 2, and avoiding excessive impact of the coolant on the anion and cation exchange resin 291, which would cause the anion and cation exchange resin 291 to separate.

[0098] This ensures the filtration effect of the cation and anion exchange resin 291 in the filter element 2 on anions and cations in the coolant, thus guaranteeing the normal function of the filter element 2.

[0099] Furthermore, by placing the third outlet 117 at the upper end of the housing 1, the coolant can first flow to the second inlet at the upper end of the cylinder 21, and then flow into the filter element 2 or the third outlet 117 respectively. This avoids the coolant flowing in from the first inlet 112 being directly discharged from the third outlet 117 when the third outlet 117 is placed at the lower end of the housing 1, thus ensuring the normal flow of coolant to the second inlet.

[0100] For example, the third outlet 117 can be directly connected to the coolant flow channel 116. Alternatively, a valve such as a switch valve or a proportional valve can be installed at the third outlet 117 to control the opening or closing of the third outlet 117, thereby selecting the amount of coolant discharged through the third outlet 117 and facilitating the adjustment of the coolant pressure in the coolant flow channel 116.

[0101] In some embodiments, such as Figure 6 , Figure 14 , Figure 15 , Figure 16 As shown, the filter element 2 also includes a first end plate 22 and a second end plate 23, which are connected to opposite ends of the cylinder 21, with the first end plate 22 positioned above the second end plate 23. Both the first end plate 22 and the second end plate 23 have through holes to allow coolant to flow through the cylinder 21. The cylinder 21, the first end plate 22, and the second end plate 23 form a receiving cavity. Multiple flow equalization plates 25 are located within the receiving cavity and divide it into multiple receiving sub-cavities 211.

[0102] The filter element 2 also includes a plurality of support rods 221, which are supported between the side of the first end plate 22 facing away from the second end plate 23 and the inner wall surface of the top of the housing 1.

[0103] With the above configuration, the lower end of the cylinder 21 is connected to the housing 1, and the first end plate 22 and multiple support rods 221 are supported between the housing 1 and the upper end of the cylinder 21. This allows the overall structure of the filter element 2 to be supported between the two side walls of the housing 1 in the vertical direction, thereby improving the stability of the filter element 2 installed in the housing 1 and ensuring the stability of the filter element 2 and the deionizer 10 during operation.

[0104] In some embodiments, the inner wall surface at the top of the housing 1 is provided with a fixing hole, into which the support rod 221 can extend, thereby restricting the movement of the support rod 221 through the fixing hole and improving the connection strength between the filter element 2 and the housing 1.

[0105] In some embodiments, both the first end plate 22 and the second end plate 23 are fitted with filter screens 292.

[0106] In some embodiments, the two ends of the central shaft 26 are connected to the first end plate 22 and the second end plate 23, respectively.

[0107] This allows the central shaft 26 to be supported between the first end plate 22 and the second end plate 23, thereby fixing all the multiple blades 241 of each guide member 24. This achieves the installation of the guide member 24.

[0108] In some embodiments, the flow equalization plate 25 is provided with a first mounting hole, and the central shaft 26 passes through the first mounting hole and is connected to the flow equalization plate 25. This also allows multiple flow equalization plates 25 to be fixed by the central shaft 26.

[0109] During the assembly of filter element 2, multiple flow guides 24 and multiple flow equalization plates 25 can be connected to the central shaft 26 first, and then the entire structure of the central shaft 26, multiple flow guides 24 and multiple flow equalization plates 25 can be installed between the first end plate 22 and the second end plate 23. This simplifies the assembly process of filter element 2 and makes it easier to assemble filter element 2.

[0110] In some embodiments, such as Figures 6 to 9 as well as Figures 14 to 17 As shown, the central shaft 26 includes multiple first connecting sections 261, multiple second connecting sections 262, multiple first snap-fit ​​pieces 27, and multiple second snap-fit ​​pieces 28. The first connecting sections 261 pass through the first mounting holes and are connected to the flow equalization plate 25. Both ends of the first connecting sections 261 are connected to the first snap-fit ​​pieces 27.

[0111] Multiple blades 241 of a flow guide 24 are arranged around a second connecting section 262 and are all connected to the second connecting section 262. A flow guide 24 is connected to a second connecting section 262. Both ends of the second connecting section 262 are connected to second snap-fit ​​members 28.

[0112] The first end plate 22 is provided with a first snap-fit ​​member 27 on the side near the second end plate 23, and the second end plate 23 is provided with a first snap-fit ​​member 27 on the side near the first end plate 22.

[0113] The second snap-fit ​​member 28 at the upper end of the second connecting section 262 located in the uppermost receiving cavity 211 snaps into the first snap-fit ​​member 27 provided on the first end plate 22. The second snap-fit ​​member 28 at the lower end of the second connecting section 262 located in the lowermost receiving cavity 211 snaps into the first snap-fit ​​member 27 provided on the second end plate 23.

[0114] The two first connectors 27 at both ends of the first connecting segment 261 are respectively connected to the two second connectors 28 on the two adjacent second connecting segments 262, each close to one end of the first connecting segment 261.

[0115] By connecting multiple flow equalization plates 25 to multiple first connecting sections 261 and multiple flow guides 24 to second connecting sections 262 respectively, and then snapping the multiple first connecting sections 261 and multiple second connecting sections 262 together in sequence, the overall structure of the central shaft 26, multiple flow equalization plates 25 and multiple flow guides 24 can be assembled.

[0116] Compared to connecting multiple flow equalizers 25 and multiple flow guides 24 to the same rod, this simplifies the assembly process of the overall structure of the central shaft 26, multiple flow equalizers 25 and multiple flow guides 24, and facilitates the assembly of the overall structure of the central shaft 26, multiple flow equalizers 25 and multiple flow guides 24.

[0117] In some embodiments, the first snap-fit ​​member 27 includes a plurality of first snap-fit ​​posts 271 and a plurality of snap-fit ​​plates 272. The plurality of first snap-fit ​​posts 271 are all disposed on one side of the first connecting section 261 in the vertical direction. The extension direction of the plurality of first snap-fit ​​posts 271 is consistent with the vertical direction and arranged along the circumference of the cylinder 21. A snap-fit ​​plate 272 is provided between two adjacent first snap-fit ​​posts 271. The thickness direction of the snap-fit ​​plate 272 is perpendicular to the arrangement direction of the two adjacent snap-fit ​​posts. One snap-fit ​​post is in contact with two adjacent snap-fit ​​plates 272.

[0118] The second snap-fit ​​component 28 includes a plurality of second snap-fit ​​posts 281. The plurality of second snap-fit ​​posts 281 are all located on one side of the second connecting section 262 in the vertical direction, and the extension direction of the plurality of second snap-fit ​​posts 281 is consistent with the vertical direction and arranged circumferentially along the cylinder 21.

[0119] When the first latching member 27 and the second latching member 28 are connected, the end of the first latching post 271 away from the first connecting section 261 contacts the end of the second latching post 281 away from the second connecting section 262. Furthermore, along the circumferential direction of the cylinder 21, at least a portion of the second latching post 281 is located between two adjacent latching plates 272 and contacts both adjacent latching plates 272.

[0120] In this way, the two adjacent snap-fit ​​plates 272 can restrict the first snap-fit ​​post 271 and the second snap-fit ​​post 281 between the two adjacent snap-fit ​​plates 272 from moving circumferentially along the cylinder 21, thereby fixing the first snap-fit ​​post 271 and the second snap-fit ​​post 281 located between the two adjacent snap-fit ​​plates 272 together, so as to realize the snap-fit ​​of the first snap-fit ​​member 27 and the second snap-fit ​​member 28.

[0121] It should be noted that the two ends of the first connecting segment 261 can also be connected to two second snap-fit ​​pieces 28 respectively, and the two ends of the second connecting segment 262 can be connected to two first snap-fit ​​pieces 27 respectively. The first end plate 22 and the second end plate 23 can also be connected to other snap-fit ​​pieces, for example, the first end plate 22 and the second end plate 23 can only be connected to the snap-fit ​​plate 272.

[0122] Furthermore, other cavities outside the accommodating sub-cavities 211 may also be provided between the first end plate 22 and the second end plate 23. For example, multiple accommodating sub-cavities 211 may be formed between multiple flow equalization plates 25. The first end plate 22 and the second end plate 23 are adjacent to the uppermost flow equalization plate 25 and the lowermost flow equalization plate 25, respectively. At this time, a second connector or other connectors may be connected to both the first end plate 22 and the second end plate 23.

[0123] In some embodiments, a flow equalization plate 25 is integrally formed with a first connecting segment 261 and two first snap-fit ​​members 27 located at both ends of the first connecting segment 261. A flow guide 24 is integrally formed with a second connecting segment 262 and two second snap-fit ​​members 28 located at both ends of the second connecting segment 262. This improves the structural strength of the overall structure of the central shaft 26, the multiple flow equalization plates 25, and the multiple flow guide members 24.

[0124] In some embodiments, the guide 24 includes a turbine.

[0125] In some embodiments, such as Figures 2 to 4 as well as Figures 18 to 20 As shown, the housing 1 includes a first housing portion 11, a second housing portion 12, and a fixing plate 13. The first housing portion 11 and the second housing portion 12 form a mounting cavity. The fixing plate 13 is disposed within the mounting cavity and is connected to at least one of the first housing portion 11 and the second housing portion 12. One side surface of the fixing plate 13 and the first housing portion 11 form a first cavity 111, and the other side surface of the fixing plate 13 and the second housing portion 12 form a second cavity 121. The filter element 2 is disposed within the first cavity 111.

[0126] The deionizer 10 also includes a connector 5, which is at least partially located in the second cavity 121 for connecting to an external power source and is electrically connected to the heating element 3.

[0127] This allows at least a portion of the connector 5 to be housed within the second cavity 121, providing protection for the connector 5 through the second housing 12. Compared to housing the connector 5 within the first cavity 111, there is no need to install waterproofing devices or other components on the connector 5, and leakage of electricity from the connector 5 can be avoided, ensuring the safety of the electrical connection between the connector 5 and the heating element 3.

[0128] In some embodiments, the fixing plate 13 is made of metal (e.g., copper, iron, alloy, etc.) and has a second mounting hole. The heating element 3 includes a heating wire, which passes through the second mounting hole and is welded to the fixing plate 13 to seal the gap between the heating wire and the fixing plate 13.

[0129] This prevents coolant from flowing into the second cavity 121 through the gap between the fixed plate 13 and the heating wire, thereby preventing faults such as leakage in the connector 5 and improving the safety of the electrical connection between the connector 5 and the heating element 3.

[0130] Meanwhile, by placing the fixing plate 13 inside the mounting cavity, the fixing plate 13 can be shielded by the first shell portion 11 and the second shell portion 12, preventing the fixing plate 13 from being exposed outside the shell 1, thereby preventing other components from leaking electricity or short-circuiting through the fixing plate 13 and the coolant.

[0131] In some embodiments, as shown in the figure, the lower end of the second shell portion 12 is sleeved on the upper end of the first shell portion 11 and contacts the first shell portion 11 to cover the fixing plate 13 in the mounting cavity.

[0132] Of course, in some other embodiments, the fixing plate 13 may also be made of plastic, ceramic, etc.

[0133] In some embodiments, such as Figure 4 , Figure 21 , Figure 22 As shown, the first housing portion 11 has a third mounting hole, the fixing plate 13 has a fourth mounting hole, and the second housing portion 12 has a fifth mounting hole. The deionizer 10 also includes a fastener 61 and an insulating sleeve 62. The fastener 61 passes through the third, fourth, and fifth mounting holes to fix the first housing portion 11, the fixing plate 13, and the second housing portion 12. The insulating sleeve 62 is fitted onto the fastener 61 and contacts the inner wall surface of the fourth mounting hole.

[0134] The fastener 61 can simultaneously secure the first housing 11, the fixing plate 13, and the second housing 12. Furthermore, the insulating sleeve 62 prevents the fastener 61 from contacting the fixing plate 13, thus preventing leakage of electricity between the fixing plate 13 and the coolant through the fastener 61. This ensures the insulation effect of the deionizer 10.

[0135] For example, fastener 61 can be a screw, bolt, or nut. Insulating sleeve 62 can be made of plastic, rubber, or other materials.

[0136] For example, the number of fasteners 61 can be one or more, such as two, three, four, etc.

[0137] In some embodiments, such as Figure 4 As shown, the deionizer 10 also includes a first sealing ring 14 and a second sealing ring 15. The first sealing ring 14 surrounds the first cavity 111 and is sealed between the fixing plate 13 and the first shell 11.

[0138] The second sealing ring 15 surrounds the second cavity 121 and is sealed between the fixing plate 13 and the second shell 12.

[0139] This allows the gap between the fixing plate 13 and the first housing 11 to be sealed by the first sealing ring 14, preventing coolant from leaking out from the gap between the fixing plate 13 and the first housing 11, and ensuring the sealing performance of the deionizer 10.

[0140] Similarly, the second sealing ring 15 can seal the gap between the fixing plate 13 and the second shell 12 to prevent liquids or the like from entering the second cavity 121 and causing leakage of the connector 5.

[0141] For example, the first sealing ring 14 can be made of plastic, rubber, etc. The second sealing ring can also be made of plastic, rubber, etc.

[0142] In some embodiments, such as Figure 4 , Figures 18 to 20 As shown, the first shell portion 11 includes a first sub-shell portion 114 and a second sub-shell portion 115, with the first sub-shell portion 114 surrounding the filter element 2. The second sub-shell portion 115 is connected to the lower part of the first sub-shell portion 114 and blocks the lower opening of the first sub-shell portion 114.

[0143] The deionizer 10 also includes a third sealing ring 17, which is connected between the first sub-shell 114 and the second sub-shell 115 to seal the gap between the first sub-shell 114 and the second sub-shell 115.

[0144] By providing a third sealing ring 17, coolant leakage from the gap between the first sub-shell 114 and the second sub-shell 115 can be prevented, thus ensuring the sealing performance of the deionizer 10.

[0145] Furthermore, by providing a first sub-shell 114 and a second sub-shell 115, the second sub-shell can be separated from the first sub-shell 114 during the assembly of the deionizer 10, thereby opening the first cavity 111 and facilitating the installation of the heating element 3 and the filter element 2. This makes the assembly of the deionizer 10 more convenient.

[0146] Of course, in some other embodiments, the first sub-shell portion 114 and the second sub-shell portion 115 may also be integrally formed structures.

[0147] In some embodiments, the bottom wall of the housing 1 is provided with a limiting plate 19, which surrounds the cylinder 21. This limits the movement of the cylinder 21 relative to the housing 1 by the limiting plate 19, thereby further improving the connection strength between the filter element 2 and the housing 1.

[0148] In some embodiments, such as Figure 4 As shown, the deionizer 10 also includes a fourth sealing ring 18, which surrounds the first outlet 113 and is sealed between the lower end of the cylinder 21 and the bottom wall of the shell 1 to block the gap between the lower end of the cylinder 21 and the bottom wall of the shell 1.

[0149] This prevents the filtered coolant from flowing into the coolant channel 116, ensuring that all the filtered coolant can be discharged from the housing 1 through the first outlet 113.

[0150] It should be understood that the application of this application is not limited to the examples above. Those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims. Those skilled in the art can understand that implementing all or part of the processes of the above embodiments and making equivalent changes according to the claims of this application still fall within the scope of this application.

Claims

1. A deionizer, characterized in that, It includes a housing (1) and a filter element (2); the housing (1) is provided with a first inlet (112) and a first outlet (113), the first inlet (112) being used to introduce coolant into the housing (1); The filter element (2) is disposed inside the housing (1) and connected to the housing (1); the filter element (2) is provided with anion and cation exchange resin (291), which is used to filter anions and cations in the coolant flowing through the filter element (2); In the vertical direction, the filter element (2) has a second inlet at the top and a second outlet at the bottom. The second inlet is connected to the first inlet (112) and the second outlet is connected to the first outlet (113).

2. The deionizer according to claim 1, characterized in that, The filter element (2) includes a cylindrical body (21) and multiple flow equalization plates (25). The cylindrical body (21) is connected to the housing (1), and the axial direction of the cylindrical body (21) is consistent with the vertical direction. The multiple flow equalization plates (25) are all disposed inside the cylindrical body (21) and connected to the cylindrical body (21). The thickness direction of the flow equalization plates (25) is consistent with the axial direction of the cylindrical body (21), and the flow equalization plates (25) are provided with multiple flow guide holes. The plurality of flow equalization plates (25) are arranged at intervals along the axial direction of the cylinder (21) and divide the internal space of the cylinder (21) into a plurality of receiving sub-cavities (211), and the plurality of receiving sub-cavities (211) are provided with the anion and cation exchange resins (291).

3. The deionizer according to claim 1, characterized in that, The internal space of the filter element (2) includes a plurality of accommodating sub-cavities (211) arranged along the vertical direction. The filter element (2) also includes a plurality of flow guides (24), and each of the receiving sub-cavities (211) is provided with the flow guides (24). The flow guides (24) are used to guide the coolant and anion and cation exchange resin (291) in the filter element (2) to flow in a spiral shape in the vertical direction.

4. The deionizer according to claim 3, characterized in that, The filter element (2) further includes a cylindrical body (21) and a central shaft (26). The cylindrical body (21) is connected to the housing (1), and the axial direction of the cylindrical body (21) is consistent with the vertical direction. The internal space of the cylindrical body (21) includes a plurality of receiving sub-cavities (211) arranged along the axial direction of the cylindrical body (21). The axial direction of the central shaft (26) is consistent with the axial direction of the cylindrical body (21), and the central shaft (26) is connected to the cylindrical body (21). Each of the flow guides (24) includes a plurality of blades (241) arranged around and connected to the central axis (26).

5. The deionizer according to claim 3, characterized in that, For any two adjacent flow guides (24), one flow guide (24) guides the coolant and the anion and cation exchange resin (291) to flow in a first spiral direction, and the other flow guide (24) guides the coolant and the anion and cation exchange resin (291) to flow in a second spiral direction, wherein the first spiral direction and the second spiral direction are opposite.

6. The deionizer according to claim 5, characterized in that, Each of the flow guides (24) includes a plurality of blades (241) arranged circumferentially along the central axis (26), and each blade (241) is arranged axially inclined relative to the central axis (26). For any two adjacent flow guides (24), the upper and lower ends of the blades (241) of one flow guide (24) are arranged sequentially along the first spiral direction, and the upper and lower ends of the blades (241) of the other flow guide (24) are arranged sequentially along the second spiral direction, so that the two adjacent flow guides (24) guide the coolant and the anion and cation exchange resin (291) to flow in a spiral shape in opposite directions.

7. The deionizer according to any one of claims 1-6, characterized in that, The filter element (2) includes a cylindrical body (21), which is connected to the housing (1). The interior of the cylindrical body (21) is provided with filter material. The upper end of the cylindrical body (21) is open to form the second inlet, and the lower end of the cylindrical body (21) is open to form the second outlet. The bottom of the housing (1) is provided with the first outlet (113), the internal space of the cylinder (21) covers the first outlet (113), and the lower end of the cylinder (21) is sealed to the housing (1) so that the second outlet communicates with the first outlet (113); The filter element (2) and the inner wall of the housing (1) define a coolant flow channel (116) surrounding the filter element (2). The first inlet (112) communicates with the coolant flow channel (116). The upper end of the cylinder (21) is spaced apart from the inner wall of the housing (1) so that the second inlet communicates with the coolant flow channel (116).

8. The deionizer according to claim 7, characterized in that, It also includes a heating element (3), which is disposed in the coolant flow channel (116) and surrounds the filter element (2). The heating element (3) is used to heat the coolant.

9. The deionizer according to claim 8, characterized in that, The first inlet (112) is located at the lower end of the housing (1) and along the vertical direction. The first inlet (112) is located on the lower side of the heating element (3), and the second inlet is located on the upper side of the heating element (3). And / or, the housing (1) is further provided with a third outlet (117), the third outlet (117) is located at the upper end of the housing (1) and on the upper side of the heating element, and the third outlet (117) is connected to the coolant flow channel (116).

10. The deionizer according to claim 8, characterized in that, The housing (1) includes a first housing part (11), a second housing part (12), and a fixing plate (13). The first housing part (11) and the second housing part (12) form an installation cavity. The fixing plate (13) is disposed in the installation cavity and connected to the first housing part (11) and / or the second housing part (12). One side surface of the fixing plate (13) and the first housing part (11) form a first cavity (111). The other side surface of the fixing plate (13) and the second housing part (12) form a second cavity (121). The filter element (2) is disposed in the first cavity (111). The deionizer (10) also includes a connector (5), which is at least partially disposed in the second cavity (121) for connecting to an external power source and is electrically connected to the heating element (3).

11. A cooling system, characterized in that, It includes a cooling circuit, a pump body, and a deionizer (10) as described in any one of claims 1-10, wherein the pump body and the deionizer (10) are connected in series in the cooling circuit, and the cooling circuit is adapted to cool the battery.

12. A vehicle, characterized in that, Includes the cooling system as described in claim 11.

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