Coolant valve device for a motor vehicle

Abstract

The invention relates to a coolant valve device for a motor vehicle, in particular for an electric vehicle, comprising: at least one main body which defines at least three valve chambers; the at least three interfaces are arranged on the base body, and each interface is connected with one of the valve chambers; and at least one valve unit having at least one valve disc with at least one opening, the valve disc having at least two operating positions and the valve disc being provided for connecting at least two of the valve chambers to each other via the opening in at least one of the operating positions. According to the invention, the valve unit has at least one valve cartridge with at least one opening, the valve cartridge having at least two operating positions and the valve cartridge being designed to connect at least two of the valve chambers to one another via the opening in at least one of the operating positions.

Description

Technical Field

[0001] The invention relates to a coolant valve device for a motor vehicle. Background Art

[0002] A coolant valve device for a motor vehicle, in particular an electric vehicle, has been proposed, comprising: at least one base body, which defines at least three valve chambers; at least three interfaces arranged on the base body, each of which is connected to one of the valve chambers; and at least one valve unit, which has at least one valve disk with at least one opening, the valve disk having at least two operating positions and being configured to connect at least two valve chambers in the valve chamber to each other via the opening in at least one of the operating positions. Summary of the invention

[0003] The present invention relates to a coolant valve device for a motor vehicle, in particular an electric vehicle, comprising: at least one base body, which defines at least three valve chambers; at least three interfaces arranged on the base body, each of which is connected to one of the valve chambers; and at least one valve unit, which has at least one valve disk with at least one opening, the valve disk having at least two operating positions and being configured to connect at least two valve chambers in the valve chamber to each other via the opening in at least one of the operating positions.

[0004] It is proposed that the valve unit has at least one valve cartridge with at least one opening, the valve cartridge has at least two operating positions and the valve cartridge is configured to connect at least two valve chambers in the valve chamber to each other through the opening in at least one of the operating positions. Preferably, the valve unit is supported on a base body. Preferably, the valve disk and the valve cartridge are supported together on the base body. Preferably, the valve cartridge can connect at least one valve chamber to another valve chamber through the opening of the valve chamber, and the other valve chamber can also be connected to another valve chamber by the valve disk through the opening of the valve disk. Therefore, the valve disk and the valve cartridge have in particular at least one valve chamber that can be switched together.

[0005] In this context, a "coolant valve device" should particularly refer to a device that forms at least a part of a coolant valve. Preferably, the coolant valve device constitutes a coolant valve. The coolant valve device is particularly configured to connect and disconnect (partial) coolant circuits in a coolant system together with a coolant pump. Multiple coolers, internal heat exchangers and multi-zone air conditioning devices require complex pipe systems with interconnections and disconnections of heat absorbers and heat sources. The interfaces of the coolant valve device, in particular the inlet and outlet, are particularly configured to be connected to each other inside the coolant valve device depending on the vehicle state, such as, for example, the system temperature and the driver and passengers' expectations, wherein it is particularly important to ensure that as little heat or cold as possible is lost in order to obtain the highest possible vehicle travel length.

[0006] The base of the coolant valve device is in particular fixed, wherein the base defines the valve chambers of the coolant valve device, in particular all the valve chambers. Preferably, the base defines at least four valve chambers, particularly preferably at least five valve chambers. Preferably, the base has a cylindrical basic shape. The valve chambers are in particular connected to at least one interface respectively, wherein the valve chambers can be variably connected to each other by means of a valve unit. The interface is in particular used to connect the coolant valve device to the coolant system of the motor vehicle. The interface can be formed by an inlet and / or an outlet. The interface is in particular used to supply a liquid, in particular a coolant, to the valve chamber or to serve as an outlet for a liquid, in particular a coolant from the valve chamber. Preferably, an interface is assigned to each valve chamber.

[0007] In this context, a "valve unit" should particularly refer to a unit of a coolant valve device, which is arranged to directly adjust the flow rate or flow direction through the coolant valve device. Preferably, the valve unit includes an actuator, which is arranged to adjust the valve cartridge and / or valve disc of the valve unit. Preferably, the valve unit includes at least one adjusting element, which acts together with the valve chamber to adjust the flow rate or flow direction through the coolant valve device. The valve unit, for example, includes two adjusting elements and more precisely includes a valve cartridge and a valve disc. The valve disc is particularly disc-shaped and has at least one opening. The valve disc has a circular basic shape. The valve disc is particularly arranged on the end side of the base body. The valve disc is particularly arranged in the axial direction before or after the base body, wherein the valve disc is supported on the base body in a sealed manner except for at least one opening. The valve disc particularly has a main extension plane, which is perpendicular to the axial direction of the coolant valve device. Preferably, the valve disc is configured in a manner that can be adjusted by rotation. Preferably, the valve disc is coupled to an actuator of the valve unit, by which the valve disc can be twisted relative to the base body. By twisting the valve disc, the position of at least one opening relative to the valve chamber is changed in particular. The valve disc has at least two operating positions in particular, wherein the valve disc is arranged to connect at least two valve chambers in the valve chamber to each other through the opening in at least one of the operating positions. Preferably, the valve disc has multiple operating positions. Preferably, the valve disc can be adjusted steplessly in particular. The valve drum has a cylindrical basic shape. Preferably, the valve drum is composed of a hollow drum with at least one opening. The opening extends in particular within the range of the entire axial extension of the valve drum. In the case of multiple openings, the valve drum comprises in particular a plurality of sickle-shaped walls, which are separated by the openings. The valve drum is in particular at least partially arranged in the radially inner valve chamber. The valve drum extends in particular into the inside of the base body. Preferably, the valve drum is arranged coaxially with the base body and / or the valve disc. The valve drum is in particular supported in the base body in a sealed manner except for at least one opening. The valve drum has in particular a main extension direction, which extends parallel to the axial direction of the coolant valve device. Preferably, the valve drum is configured in a manner that can be adjusted by rotation. The valve cartridge is preferably coupled to an actuator of the valve unit, by means of which the valve cartridge can be twisted relative to the base body. By twisting the valve cartridge, the position of at least one opening relative to the valve chamber is in particular changed. The valve cartridge has in particular at least two operating positions, wherein the valve disk is provided for connecting at least two valve chambers in the valve chamber to one another via the opening in at least one of the operating positions. The valve cartridge preferably has a plurality of operating positions. The valve cartridge is preferably in particular infinitely adjustable.

[0008] The "main extension plane" of a structural unit should be understood in particular to mean a plane which is parallel to the largest side of the smallest imaginary cuboid which just completely encloses the structural unit and which extends in particular through the center of the cuboid. The "main extension direction" of an object should be understood in particular to mean a direction which extends parallel to the longest edge of the smallest geometric cuboid which just completely encloses the object. "Set" should be understood in particular to mean specially programmed, designed and / or constructed. "An object is set for a specific function" should be understood in particular to mean that the object performs and / or executes this specific function in at least one application and / or operating state.

[0009] By the design of the coolant valve device according to the invention, a flexible and variable valve can be provided in particular. The invention particularly expands the traditional disc valve having the function of a drum valve inside and thereby reduces the number of necessary disc openings or the necessary width of the dome. In addition to the sweeping flow through the dome, the coolant valve device according to the invention can realize additional radial opening and closing in the direction of another inlet or outlet in the center through a free liquid chamber in the cover of the housing of the coolant valve device, which is above the dome. Thus, in addition to the tangential sweeping flow through the dome, radial opening in the direction of the valve chamber in the center can be realized at the same time. In which valve position is opened or closed depends on the direction of at least one opening of the valve cartridge. Thus, the solution space for realizing a switch circuit diagram or functional integration on the available space is increased. The available valve chamber can be optimally used to guide the liquid and reduce the pressure loss to a minimum.

[0010] It is further proposed that a first interface of the interfaces is arranged on the base body parallel to the rotation axis of the valve unit. Preferably, the first interface is arranged on the lower side of the base body facing away from the valve disc. The first interface is arranged in particular parallel to, preferably coaxially to, the axial direction of the coolant valve device. Preferably, the first interface is formed perpendicular to the other interfaces. Preferably, the valve cartridge and the valve disc of the valve unit have a common rotation axis. The valve cartridge and the valve disc are arranged in particular coaxially. As a result, an advantageous arrangement of the first interface can be achieved in particular. By means of the first interface, a liquid, in particular a coolant, can be advantageously supplied to the central valve chamber.

[0011] It is further proposed that the first valve chamber in the valve chamber is arranged radially inside the other valve chamber. Preferably, the first valve chamber is arranged in the center of the base body. The axis of rotation of the valve unit extends in particular through the first valve chamber. The first valve chamber has in particular a cylindrical basic shape. The other valve chambers extend in particular in an annular manner around the first valve chamber. Preferably, the other valve chambers are arranged around the first valve chamber in a uniformly distributed manner along the circumferential direction. Preferably, the first valve chamber is directly coupled to the first interface. As a result, an additional valve chamber can be provided in particular in the center. As a result, an advantageous distribution of the valve chambers can be achieved in particular. Preferably, the first valve chamber acts together with the valve cartridge.

[0012] It is further proposed that the valve barrel of the valve unit and the valve disk of the valve unit are fixedly connected. Preferably, the valve barrel and the valve disk are connected to each other in a rotationally fixed manner. Preferably, the valve barrel and the valve disk are adjusted by a common actuator. "At least one first element is "connected" to at least one other element" should in particular mean that the first element is advantageously connected to another element by at least one force-locking and / or at least one form-locking, such as by riveting and / or latching connection and / or groove-tenon-connection and / or clamping connection and / or other connections that appear meaningful to a person skilled in the art and / or is connected to another element by material locking, such as by a welding process, a bonding process, an injection molding process and / or other processes that appear meaningful to a person skilled in the art. It is further proposed that the valve barrel of the valve unit and the valve disk of the valve unit are integrally formed. Preferably, the valve barrel and the valve disk are integrally formed. "Integrally" should in particular at least mean, for example, a material-locked connection by a welding process, an adhesive process, an injection molding process and / or other processes that appear meaningful to a person skilled in the art and / or advantageously, for example, by manufacturing by casting and / or by manufacturing by a single-component or multi-component injection molding method and advantageously formed in one piece from a single blank. "Integrally" should also advantageously mean "in one piece". "In one piece" should in particular mean formed in one piece. Preferably, this whole piece is manufactured from a single blank, a blank and / or a casting, particularly preferably by an injection molding method, in particular by a single-component and / or multi-component injection molding method. As a result, the number of components can be kept at a low level in particular. In addition, in particular, an advantageously simple control of the coolant valve device can be achieved.

[0013] It is further proposed that the valve cartridge of the valve unit is arranged radially inside the valve disk of the valve unit. Preferably, the valve cartridge is arranged radially inside the valve disk and on the side of the valve disk facing the base body. Preferably, the diameter of the valve cartridge is significantly smaller than the diameter of the valve disk. Preferably, the valve cartridge is arranged in the first valve chamber, while the valve disk extends within the scope of the other valve chambers. It is also conceivable that the valve disk extends within the scope of all valve chambers. As a result, an advantageously compact construction of the coolant valve device can be provided in particular. In particular, the valve cartridge can be advantageously integrated into the valve disk.

[0014] It is further proposed that the base body has a dome which is arranged between the valve chambers, wherein the dome is formed by walls of equal thickness. The dome is formed in particular by walls which separate the valve chambers from one another. The dome can be narrow or also wide, depending on the required connection and disconnection diagram. Preferably, the dome is formed by narrow walls of equal thickness. However, it is also conceivable that the dome is not unilaterally narrow or thick. The width of the dome reduces the available space for guiding the coolant. Therefore, by means of a narrow dome, in particular the available space for guiding the coolant can be kept at an advantageously large level.

[0015] It is further proposed that a first valve chamber in the valve chamber is directly connected to another valve chamber in the valve chamber and can be separated by a valve cartridge. Preferably, the first valve chamber is directly connected to the other valve chamber in a radial direction. In particular, no dome is arranged between the first valve chamber and the other valve chamber. If an opening of the valve cartridge is arranged between the first valve chamber and the other valve chamber, the first valve chamber is preferably connected to the other valve chamber. If a housing of the valve cartridge is arranged between the first valve chamber and the other valve chamber, the first valve chamber is preferably separated from the other valve chamber.

[0016] It is further proposed that the valve cartridge of the valve unit is arranged in the first valve chamber. Preferably, the first valve chamber is cylindrical, wherein the valve cartridge is supported in the valve chamber. Preferably, the valve cartridge is guided on the limiting wall of the first valve chamber. However, other arrangements of the valve cartridge which appear to be meaningful to a person skilled in the art are also conceivable. Thus, for example, it is conceivable that the valve cartridge is guided in the gap between the first valve chamber and the further valve chamber. This makes it possible in particular to achieve an advantageously compact design of the coolant valve device. Furthermore, in particular, an advantageous integration of the valve cartridge in the disk valve can be achieved.

[0017] It is further proposed that the valve cartridge of the valve unit extends axially as far as the bottom of the first valve chamber in the valve chamber. Preferably, the valve cartridge extends in the axial direction through the entire first valve chamber. In particular, the height of the valve cartridge corresponds at least approximately to the height of the first valve chamber. Preferably, the diameter of the valve cartridge corresponds at least approximately to the diameter of the first valve chamber. As a result, an advantageously compact design of the coolant valve device can be achieved in particular. Furthermore, an advantageous integration of the valve cartridge in the disk valve can be achieved in particular.

[0018] The coolant valve device according to the invention is not to be limited to the applications and embodiments described above. In particular, the coolant valve device according to the invention can have a number of individual elements, components and units that differ from the number mentioned above in order to implement the functional principle described above. In addition, for the numerical ranges specified in the present disclosure, the values ​​within the mentioned limits are to be regarded as disclosed and can be used arbitrarily. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Further advantages are derived from the following description of the drawings. An embodiment of the invention is shown in the drawings. The drawings, the description and the claims contain a large number of features in combination. A person skilled in the art will also appropriately view these features individually and summarize them into other meaningful combinations.

[0020] in:

[0021] Figure 1 A schematic diagram shows a coolant valve device according to the invention having a base body and a valve unit having a valve cartridge and a valve disk in a first operating state;

[0022] Figure 2 A schematic diagram shows a coolant valve device according to the invention having a base body and a valve unit having a valve cartridge and a valve disk in a second operating state;

[0023] Figure 3 A schematic diagram shows a coolant valve device according to the invention having a base body and a valve unit having a valve cartridge and a valve disk in a second operating state;

[0024] Figure 4 A schematic diagram shows a coolant valve device according to the invention having a base body and a valve unit having a valve cartridge and a valve disk in a second operating state;

[0025] Figure 5 A schematic diagram shows a coolant valve device according to the invention having a base body and a valve unit having a valve cartridge and a valve disk in a second operating state;

[0026] Figure 6 A schematic diagram shows a coolant valve device according to the invention having a base body and a valve unit having a valve cartridge and a valve disk in a second operating state; and

[0027] Figure 7 The coolant valve device according to the invention is shown in a schematic exploded view with a main body and a valve unit having a valve cartridge and a valve disk. DETAILED DESCRIPTION

[0028] Figure 1 A coolant valve device 10 is shown. The coolant valve device 10 is used in motor vehicles, in particular electric vehicles. The coolant valve device 10 is formed by a coolant valve. Future electrically driven vehicles will require cooling and heating of the heat exchanger installed in the air conditioning box on the coolant side in addition to cooling of the electric axle, battery and other electrical components, such as DC / DC converters and battery chargers. This is accompanied by the need for multiple coolant pumps and a large number of coolant valve devices 10, which enable the connection and disconnection of (parts of) the coolant circuit. The coolant valve device 10 is formed, for example, by a 5-port valve. The coolant valve device 10 can be used, for example, to connect batteries, HVAC coolers, and refrigerant-cooled coolers and pre-coolers. The present invention is not limited to a specific number of ports.

[0029] The coolant valve device 10 comprises a base body 12. The base body 12 forms part of the housing of the coolant valve device 10. However, it is also conceivable that the base body 12 is only arranged in the housing of the coolant valve device 10, which is not further shown. The base body 12 of the coolant valve device 10 is fixed. The base body 12 has a cylindrical basic shape. The base body 12 defines at least three valve chambers 14, 16, 18, 20, 22. The base body 12 defines exactly five valve chambers 14, 16, 18, 20, 22 by way of example and more specifically defines a first valve chamber 14, a second valve chamber 16, a third valve chamber 18, a fourth valve chamber 20 and a fifth valve chamber 22. The first valve chamber 14 of the valve chambers 14, 16, 18, 20, 22 is arranged radially inside the other valve chambers 14, 16, 18, 20, 22. The first valve chamber 14 is arranged in the center of the base body 12. The rotation axis 44 of the valve unit 34 extends through the first valve chamber 14. The first valve chamber 14 has a cylindrical basic shape. The further valve chambers 16, 18, 20, 22 extend annularly around the first valve chamber 14. The further valve chambers 16, 18, 20, 22 are arranged uniformly distributed around the first valve chamber 14 in the circumferential direction. The further valve chambers 16, 18, 20, 22 extend, for example, in each case over at least approximately one fourth of the circumference of the base body 12.

[0030] The base body 12 has domes 46, 48, 50, 52, which are arranged between the valve chambers 14, 16, 18, 20, 22. The other valve chambers 16, 18, 20, 22 are separated from each other by domes 46, 48, 50, 52. In addition, the first valve chamber 14 is separated from the third, fourth and fifth valve chambers 18, 20, 22 by a graduated circular wall 54. The domes 46, 48, 50, 52 are formed by walls extending in the radial direction. The domes 46, 48, 50, 52 are formed by walls of the same thickness. The domes 46, 48, 50, 52 can be narrow or wide depending on the required connection and disconnection circuit diagram. Preferably, the domes 46, 48, 50, 52 are formed by narrow walls of the same thickness. However, it is also conceivable that the domes 46, 48, 50, 52 are not formed in the same narrow or thick manner. The width of the domes 46 , 48 , 50 , 52 reduces the space available for conducting the coolant.

[0031] In addition, the coolant valve device 10 has at least three interfaces 24, 26, 28, 30, 32 arranged on the base body 12, which are respectively connected to one of the valve chambers 14, 16, 18, 20, 22. The coolant valve device 10 has, by way of example, five interfaces 24, 26, 28, 30, 32 arranged on the base body 12, which are respectively connected to one of the valve chambers 14, 16, 18, 20, 22 and are more precisely the first interface 24, the second interface 26, the third interface 28, the fourth interface 30 and the fifth interface 32. Preferably, the first valve chamber 14 is directly coupled to the first interface 24. Preferably, the second valve chamber 16 is directly coupled to the second interface 26. Preferably, the third valve chamber 18 is directly coupled to the third interface 28. Preferably, the fourth valve chamber 20 is directly coupled to the fourth interface 30. Preferably, the fifth valve chamber 22 is directly coupled to the fifth interface 32. The ports 24, 26, 28, 30, 32 are used to connect the coolant valve device 10 to the coolant system of the motor vehicle. The ports 24, 26, 28, 30, 32 can be formed by inlet openings and / or outlet openings. The ports 24, 26, 28, 30, 32 are used to supply liquid, in particular coolant, to the valve chambers 14, 16, 18, 20, 22 and serve as outlets for liquid, in particular coolant, from the valve chambers 14, 16, 18, 20, 22. Preferably, each valve chamber 14, 16, 18, 20, 22 is assigned a port 24, 26, 28, 30, 32.

[0032] The first interface 24 of the interfaces 24, 26, 28, 30, 32 is arranged on the base body 12 parallel to the rotation axis 44 of the valve unit 34. The first interface 24 is arranged on the lower side of the base body 12 facing away from the valve disk 36. The first interface 24 is arranged parallel to, preferably coaxially to, the axial direction of the coolant valve device 10. The first interface 24 is designed perpendicular to the other interfaces 26, 28, 30, 32.

[0033] The valve chambers 14, 16, 18, 20, 22 are variably connected to one another by means of a valve unit 34. The coolant valve device 10 has a valve unit 34. The valve unit 34 has a valve disk 36 and a valve cartridge 40. In addition, the valve unit 34 has an actuator (not shown in detail). The actuator is used to adjust the valve disk 36 and the valve cartridge 40. The valve disk 36 and the valve cartridge 40 are supported together on the base body 12.

[0034] The valve disc 36 has at least one opening 38. The valve disc 36 has, by way of example, just one opening 38. The valve disc 36 has at least two operating positions. The valve disc 36 has a plurality of operating positions. The valve disc 36 is provided for connecting at least two valve chambers in the valve chambers 14, 16, 18, 20, 22 to one another through the opening 38 in at least one of the operating positions, in particular in a plurality of operating positions. The valve disc 36 is disc-shaped. The valve disc 36 has a circular basic shape. The valve disc 36 is arranged on the end side of the base body 12. The valve disc 36 is arranged in front of the base body 12 in the axial direction, wherein the valve disc 36 is supported on the base body 12 in a sealed manner except for the opening 38. Preferably, a cover of the housing of the coolant valve device 10 is additionally arranged on the side of the valve disc 36 facing away from the base body 12. The cover seals the valve disc 36 in the direction facing away from the base body 12. The valve disk 36 has a main extension plane which extends perpendicularly to the axial direction of the coolant valve device 10. The valve disk 36 is designed to be adjustable by rotation. The position of the opening 38 relative to the valve chamber 14, 16, 18, 20, 22 is changed by twisting the valve disk 36. Preferably, the valve disk 36 has a plurality of operating positions. The valve disk 36 can be adjusted steplessly.

[0035] The valve cartridge 40 has a cylindrical basic shape. The valve cartridge 40 is formed by a hollow cartridge having at least one opening 42. The valve cartridge 40 has, by way of example, just one opening 42. The opening 42 extends over the entire axial extension of the valve cartridge 42. However, it is also conceivable that the valve cartridge 40 has a plurality of openings 42. In the case of a plurality of openings 42, the valve cartridge 42 comprises a plurality of sickle-shaped walls separated by the openings 42. The valve cartridge 40 is arranged in the first valve chamber 14. The first valve chamber 14 is cylindrical, wherein the valve cartridge 40 is supported in the valve chamber 14. The valve cartridge 40 is guided on the limiting wall of the first valve chamber 14. The valve cartridge 40 extends into the inside of the base body 12. The valve cartridge 40 of the valve unit 34 extends axially to the bottom of the first valve chamber 14 in the valve chambers 14, 16, 18, 20, 22. The valve cartridge 40 is arranged coaxially with the base body 12 and / or the valve disk 36. The valve cartridge 40 is supported in a sealing manner in the base body 12 except for the opening 42. The valve cartridge 40 is designed to be adjustable by rotation. The valve cartridge 40 is coupled to an actuator of the valve unit 34, by means of which the valve cartridge 40 can be twisted relative to the base body 12. The position of the opening 42 relative to the valve chambers 14, 16, 18, 20, 22 is changed by twisting the valve cartridge 40. The valve cartridge 40 has at least two operating positions, wherein the valve cartridge 40 is provided for connecting at least two valve chambers 14, 16, 18, 20, 22 to each other via the opening 40 in at least one of the operating positions. The valve cartridge 40 has a plurality of operating positions. The valve cartridge 40 can be adjusted steplessly,

[0036] The valve cylinder 40 of the valve unit 34 and the valve disk 36 of the valve unit 34 are fixedly connected. The valve cylinder 40 and the valve disk 36 are connected to each other in a rotationally fixed manner. The valve cylinder 40 and the valve disk 36 are adjusted by a common actuator. The valve cylinder 40 of the valve unit 34 and the valve disk 36 of the valve unit 34 are integrally formed. The valve cylinder 40 of the valve unit 34 is arranged radially inside the valve disk 36 of the valve unit 34.

[0037] The first valve chamber 14 of the valve chambers 14, 16, 18, 20, 22 is directly connected to another valve chamber 20 of the valve chambers 14, 16, 18, 20, 22 and can be separated by a valve cartridge 40. The first valve chamber 14 is directly connected to the fourth valve chamber 20 in the radial direction. The wall 54 is interrupted between the first valve chamber 14 and the fourth valve chamber 20. If the opening 42 of the valve cartridge 40 is arranged between the first valve chamber 14 and the other valve chamber 16, the first valve chamber 14 is connected to the fourth valve chamber 20. If the housing of the valve cartridge 40 is arranged between the first valve chamber 14 and the fourth valve chamber 20, the first valve chamber 14 is separated from the fourth valve chamber 20. In particular, the flow rate between the first valve chamber 14 and the fourth valve chamber 20 can be variably adjusted depending on the arrangement of the opening 42.

[0038] exist Figures 1 to 6 Different operating positions of the coolant valve arrangement are shown in FIG.

[0039] Figure 1 The first operating position is shown. In the first operating position, the valve disk 36 is adjusted so that the second valve chamber 16 is connected to the fifth valve chamber 22 via the opening 38. Preferably, in the first operating position, coolant flows from the second valve chamber 16 into the fifth valve chamber 22. In addition, the valve cartridge 40 is adjusted so that the connection between the first valve chamber 14 and the fourth valve chamber 20 is closed.

[0040] Figure 2 The second operating position is shown. In the second operating position, the valve disk 36 is adjusted so that the second valve chamber 16 is connected to the fifth valve chamber 22 via the opening 38. In addition, the valve cartridge 40 is adjusted so that the first valve chamber 14 is connected to the fourth valve chamber 20 via the opening 42. Preferably, in the second operating position, the coolant flows from the second valve chamber 16 into the fifth valve chamber 22 and from the first valve chamber 14 into the fourth valve chamber 20.

[0041] Figure 3 The third operating position is shown. In the third operating position, the valve disk 36 is adjusted so that the second valve chamber 16 is connected to the fifth valve chamber 22 and to the third valve chamber 18 via the opening 38. In addition, the valve cartridge 40 is adjusted so that the first valve chamber 14 is connected to the fourth valve chamber 20 via the opening 42. Preferably, in the third operating position, the coolant flows from the second valve chamber 16 into the third and fifth valve chambers 18, 22 and from the first valve chamber 14 into the fourth valve chamber 20.

[0042] Figure 4 The fourth operating position is shown. In the fourth operating position, the valve disk 36 is adjusted so that the second valve chamber 16 is connected to the third valve chamber 18 via the opening 38. In addition, the valve cartridge 40 is adjusted so that the first valve chamber 14 is connected to the fourth valve chamber 20 via the opening 42. Preferably, in the fourth operating position, the coolant flows from the second valve chamber 16 into the third valve chamber 18 and from the first valve chamber 14 into the fourth valve chamber 20.

[0043] Figure 5 The fifth operating position is shown. In the fifth operating position, the valve disk 36 is adjusted so that the third valve chamber 18 is connected to the fourth valve chamber 20 via the opening 38. In addition, the valve cartridge 40 is adjusted so that the first valve chamber 14 is connected to the fourth valve chamber 20 via the opening 42. Preferably, in the fifth operating position, the coolant flows from the third valve chamber 18 into the fourth valve chamber 20 and from the first valve chamber 14 into the fourth valve chamber 20.

[0044] Figure 6 The sixth operating position is shown. In the sixth operating position, the valve disk 36 is adjusted so that the third valve chamber 18 is connected to the fourth valve chamber 20 via the opening 38. In addition, the valve cartridge 40 is adjusted so that the connection between the first valve chamber 14 and the fourth valve chamber 20 is closed. Preferably, in the sixth operating position, the coolant flows from the third valve chamber 18 into the fourth valve chamber 20.

Claims

1. A coolant valve device for a motor vehicle, in particular for an electric vehicle, comprising: at least one base body (12), the base body defining at least three valve chambers (14, 16, 18, 20, 22); at least three interfaces (24, 26, 28, 30, 32) arranged on the base body (12), the interfaces being respectively connected to one of the valve chambers (14, 16, 18, 20, 22); and at least one valve unit (34), the valve unit having at least one valve disk (36) with at least one opening (38), the valve disk having at least two operating positions and being arranged to connect at least two of the valve chambers (14, 16, 18, 20, 22) to one another via the opening (38) in at least one of the operating positions, It is characterized in that The valve unit (34) has at least one valve cartridge (40) with at least one opening (42), the valve cartridge having at least two operating positions and being configured to connect at least two valve chambers (14, 16, 18, 20, 22) to one another via the opening (42) in at least one of the operating positions.

2. The coolant valve device according to claim 1, characterized in that: A first interface (24) of the interfaces (24, 26, 28, 30, 32) is arranged on the base body (12) parallel to a rotation axis (44) of the valve unit (34).

3. The coolant valve device according to claim 1 or 2, characterized in that: A first valve chamber (14) of the valve chambers (14, 16, 18, 20, 22) is arranged radially inside the other valve chambers (14, 16, 18, 20, 22).

4. The coolant valve arrangement according to any one of the preceding claims, characterized in that The valve cylinder (40) of the valve unit (34) and the valve disk (36) of the valve unit (34) are fixedly connected.

5. The coolant valve arrangement according to any one of the preceding claims, characterized in that The valve cylinder (40) of the valve unit (34) and the valve disk (36) of the valve unit (34) are formed integrally.

6. The coolant valve arrangement according to any one of the preceding claims, characterized in that The valve cylinder (40) of the valve unit (34) is arranged radially inside the valve disk (36) of the valve unit (34).

7. The coolant valve arrangement according to any one of the preceding claims, characterized in that The base body (12) has a dome (46, 48, 50, 52) which is arranged between the valve chambers (14, 16, 18, 20, 22), wherein the dome (46, 48, 50, 52) is formed by a wall of the same thickness.

8. The coolant valve arrangement according to any one of the preceding claims, characterized in that A first valve chamber (14) of the valve chambers (14, 16, 18, 20, 22) is directly connected to another valve chamber (20) of the valve chambers (14, 16, 18, 20, 22) and can be separated by a valve cartridge (40).

9. The coolant valve arrangement according to any one of the preceding claims, characterized in that The valve cylinder (40) of the valve unit (34) is arranged in the first valve chamber (14).

10. The coolant valve arrangement according to any one of the preceding claims, characterized in that The valve cylinder (40) of the valve unit (34) extends in the axial direction to the bottom of the first valve chamber (14) among the valve chambers (14, 16, 18, 20, 22).

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