Fluid device
By introducing check valves and guide elements into the fluid distributor elements of the vehicle cooling system, the tolerance problems during welding and the torsion of the coolant flow are solved, and the sealing and stability of the fluid distributor elements are improved, ensuring that The efficient operation of the system.
Patent Information
- Application Number
- CN202410800048.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2023-06-21
- Filing Date
- 2024-06-20
- Publication Date
- 2024-12-24
AI Technical Summary
Existing vehicle cooling systems are prone to tolerance problems during welding, resulting in insufficient sealing and stability of the fluid distributor elements, and are easily twisted under the flow of coolant, affecting the overall performance of the system.
A fluid distributor element with a check valve is designed, which has a closing element and a check valve seat, which can be directly loaded into the flow passage and ensures its position stability through the guiding element and the mounting positioning element. , the guide coupling section and stop elements are used during welding to prevent torsion and reduce the impact of tolerances.
It effectively reduces tolerance problems during welding, improves the sealing and stability of the fluid distributor elements, prevents the influence of welding effluents, and ensures the stable operation of the fluid distributor elements under high loads.
Smart Images
Figure CN119176019A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to a fluid device. Background Art
[0002] A central connecting device for fluidically coupling components of a vehicle, in particular an electric vehicle, has been proposed, which has at least one distributor unit and a component interface arranged on the distributor unit and used to fluidically connect the vehicle component to the distributor unit. Summary of the invention
[0003] The invention relates to a fluid device (12), in particular a coolant device, for a cooling system, in particular for a vehicle cooling system of an at least partially electrically driven vehicle (10), comprising at least one fluid distributor element (20), the fluid distributor element having at least one component interface (51, 53, 61) for connecting at least one component (50, 52, 62), in particular a pump (50, 52) and / or a valve (62), wherein the fluid distributor element (20) has at least one fluid operating element (40, 41). It is proposed that the fluid distributor unit (20) has at least one non-return valve (70) integrated into the at least one fluid operating element (40, 42), the non-return valve having at least one closing element (72) and at least one non-return valve seat (71), wherein the closing element (72) cooperates sealingly with the non-return valve seat (71) in the closed state of the non-return valve (70).
[0004] The non-return valve with a closing device has the advantage that the integration of the valve functionality in the fluid device can be designed in a particularly cost-effective manner. The closing element can be directly installed in the welded flow channel. At the same time, the design according to the invention allows the tolerances from the flow channel welding process to be maintained. Due to the robust design of the closing element, it is particularly advantageously prevented that possible welding effluent (fine plastic material coming out of the weld seam area during the welding process) negatively influences the tolerance level of the closing element in the flow channel. By advantageously introducing all tolerance-sensitive functions into the bottom of the fluid distributor element of the fluid distributor, tolerance problems when welding the fluid distributor element cover can be reduced in a particularly advantageous manner.
[0005] During a welding process (for example hot plate welding), the closing element can withstand acceleration in a particularly advantageous manner and remain in the correct position. For this purpose, at least one first guide element of the closing element, which can advantageously be designed as a piston-like element, can be introduced into a second guide element of the flow channel. Furthermore, the mounting and positioning element is introduced into a recess in the housing of the bottom of the fluid distributor element.
[0006] According to an advantageous development of the invention, in order to prevent twisting under the load of the coolant flow (during operation), the fluid distributor element cover has a projection which can interact with a stop element of the closing element. Since this stop function is not dependent on tolerances, it can be arranged on the cover. BRIEF DESCRIPTION OF THE DRAWINGS
[0007] The invention is illustrated in the drawings and explained in detail in the following description.
[0008] Figure 1 A schematic diagram shows a vehicle according to the invention;
[0009] Figure 2 A schematic diagram of a fluidic device is shown;
[0010] Figure 3a A schematic diagram of a cut-out portion of a fluid-operated element having a non-return valve in a closed position is shown;
[0011] Figure 3b A schematic diagram of a cut-away portion of a fluid-operated element is shown, the fluid-operated element having a non-return valve in an open position;
[0012] Figure 4 shows a perspective view of a closing element of a non-return valve;
[0013] Figure 5 The schematic diagram shows a detail of a fluid-actuated element having a nonreturn valve according to another embodiment. DETAILED DESCRIPTION
[0014] In the different embodiment variants, identical components are provided with the same reference numerals.
[0015] Figure 1A vehicle 10 is shown. The vehicle 10 is an electric vehicle and has an electric motor 16, alternatively a plurality of electric motors, which are used to drive the vehicle 10. The vehicle 10 also has a battery unit 14, also referred to as a "battery pack". The battery unit 14 can be formed from one or more closed units. The vehicle 10 also has a cooling circuit 11. The cooling circuit 11 has a fluid device 12. The cooling circuit 11 also has a heat exchanger 18, also referred to as a "cooler", which is provided for dissipating heat from the cooling circuit 11 to the ambient air. The cooling circuit 11 has a further heat exchanger 19, which is provided for dissipating heat to the passenger compartment of the vehicle 10 in at least one operating state. The cooling circuit 11 is provided for cooling at least one electric motor 16. The cooling circuit 11 is provided for cooling or heating the battery unit 14. The fluid device 12, also referred to as a "coolant device" or "temperature management unit", is provided for connecting the components of the cooling circuit 11 to one another. The cooling circuit 11 accordingly has coolant lines which connect the fluid device 12 to the electric motor 16 , the battery unit 14 , the heat exchangers 18 , 19 and / or other components.
[0016] According to an alternative embodiment, as an alternative or in addition to the electric motor, the vehicle has at least one internal combustion engine which is part of the cooling circuit.
[0017] exist Figure 2 1 shows a fluid device 12. The fluid device 12 has a fluid distribution element 20, also referred to as a "manifold". According to an advantageous development of the invention, the fluid distribution element 20 has a fluid distributor element bottom 24 and a fluid distributor element cover 26, which together enclose the interior of the fluid distributor unit 20.
[0018] According to an advantageous development of the invention, the fluid distributor unit has a tank 30 which is fluidically connected to the fluid distributor unit. The tank space is provided for storing at least a coolant. The tank space forms a compensation tank of the cooling circuit 11 .
[0019] The fluid distributor unit 20 preferably has a plurality of fluid operating elements 40, 42, which can be configured, for example, as fluid lines in the interior space of the fluid distributor unit 20 or as flow channels, preferably as substantially rectangular flow channels. The fluid distributor element bottom 24 is preferably configured as a half shell extending substantially along the horizontal direction H, wherein the fluid distributor element cover 26 is preferably arranged on the opening of the fluid distributor element bottom 24. Preferably, the fluid distributor element cover 26 is configured as a substantially plate-shaped element extending substantially parallel to the fluid distributor element bottom 24. According to an advantageous improvement of the present invention, the fluid distributor element cover 26 is welded to the fluid distributor element bottom 24.
[0020] The fluid-operating elements 40, 42 each open into a fluid connection which is provided for connection to a coolant line. The fluid-operating elements 40, 42 preferably each form an inlet and / or a return for a partial cooling circuit.
[0021] Component interfaces 51, 53, 60 are formed on the fluid distributor element 20, and are provided for connection to components, respectively. In the present case, the components are pumps 50, 52 and valves 62. Figure 2 , the fluid distributor unit 20 has at least one valve unit 62, which is provided for connecting different pump units of the pump units 50, 52 to different fluid operating elements of the fluid operating elements 40, 42 in different operating states and / or for distributing the coolant flow differently to the fluid operating elements 40, 42. The valve unit 62 has, for example, at least one multi-way valve.
[0022] exist Figure 3a and 3b , a section of the fluid distributor element 20 is now shown, which has a fluid-operating element 40 designed as a flow channel. The fluid-operating element 40 has an integrated nonreturn valve 70, which in turn has at least one closing element 72 and at least one nonreturn valve seat 71, wherein the closing element 72 cooperates sealingly with the nonreturn valve seat 71 in the closed state of the nonreturn valve 70 and thus fluidically seals the flow channel in one direction.
[0023] exist Figure 3a2 shows the non-return valve 70 in the closed state. The non-return valve 70 is installed in the flow channel 40 during the installation of the fluid distributor element 20. For this purpose, the closing element 72 is inserted as an insert into the flow channel 40 integrated in the fluid distributor element bottom 24. Subsequently, the fluid distributor element cover 26 is arranged on the fluid distributor element bottom 24 and welded to it. As can be seen in Figure 3a and 3b As can be seen in , the closing element 72 has at least one sealing body 73 cooperating with the non-return valve seat 71 and at least one guide coupling section 74 , wherein the guide coupling section 74 is preferably arranged on the side of the sealing body 73 facing away from the non-return valve seat 71 .
[0024] According to the present invention Figure 3a and 3b In the embodiment shown in FIG. 4 , the guide coupling section extends centrally in the region of the fluid operating element 40 substantially along the horizontal direction H. Figure 3a and 3b As can be clearly seen in FIG. 1 , according to an advantageous development of the present invention, the flow space of the flow channel 40 is arranged substantially inside the fluid distributor element bottom 24, wherein the fluid distributor element cover 26 is preferably designed as a substantially plate-shaped element substantially parallel to the fluid distributor element bottom 24. Figure 3a and 3b In the embodiment shown in FIG. 2 , the fluid distributor element bottom 26 is constructed as a half shell extending substantially in the horizontal direction.
[0025] The guide coupling section 74 has two first guide elements 80. According to this embodiment, these guide elements 80 are designed as guide rails and cooperate with second guide elements 82 in order to guide the closing element 72 during the adjustment movement along the horizontal direction H of the non-return valve 70. The second guide elements 82 are preferably designed as groove guides and limit the freedom of movement of the closing element in a direction orthogonal to the adjustment movement direction. For this purpose, the second guide elements 82 preferably have two rib elements extending substantially parallel to each other and formed in the inner wall of the fluid distributor element bottom 24, between which the first guide elements 82 are respectively received. When the closing element is inserted into the flow channel 40, the first guide element 80 is pushed into the second guide element 82.
[0026] In order to prevent the closing element 72 from moving out of its intended installation position after being inserted into the fluid distributor element base 24 and before welding the fluid distributor element cover 26, the guide coupling section 72 has an installation positioning element 90, in particular an installation positioning element 90 which engages in a form-fitting manner in a recess 92 in the housing wall of the fluid operating element 40. Figure 3a and 3b In the embodiment shown in FIG. 1 , the installation and positioning element 90 is designed as a latching element, in particular a latching lug that engages in the recess. In addition to the first guide element 80 and the installation and positioning element 90, the guide coupling section 72 also has a stop element 100 that cooperates with a projection 102 of the fluid distributor element cover 26 in order to reduce the rotation of the closing element 72 in the open state of the non-return valve 70.
[0027] exist Figure 4 It is shown in Figure 3a and 3b A perspective view of the closing element 72 in FIG. Figure 4 In the embodiment shown in FIG. 1 , the closing element 4 has wing elements which are arranged circumferentially and substantially equidistantly from one another. These wing elements are formed by first guide elements 80 a, 80 b, an installation and positioning element 90 and a stop element 100. Since these elements are respectively embedded in one of the housing walls of the fluid operating element 40 which is formed as a flow channel, these elements respectively extend the same distance in the radial direction R. Figure 4 In the embodiment shown in FIG. 8 , the two guide elements 80 a and 80 b are each arranged opposite one another.
[0028] exist Figure 5 , another embodiment of the present invention is shown in the figure, according to which the guide elements 80a, 80b are designed so that they are respectively embedded in second guide elements 82a, 82b, which are arranged in corner areas 84a, 84b of the flow channel 40, so that the two first guide elements 80a, 80b basically enclose an angle α of 90° between them.
Claims
1. A fluid device (12), in particular a coolant device, for a cooling system, in particular for a vehicle cooling system of an at least partially electrically driven vehicle (10), comprising at least one fluid distributor element (20), the fluid distributor element having at least one component interface (51, 53, 61) for connecting at least one component (50, 52, 62), in particular a pump (50, 52) and / or a valve (62), wherein the fluid distributor element (20) has at least one fluid operating element (40, 41), characterized in that The fluid distributor unit (20) has at least one non-return valve (70) integrated into at least one fluid operating element (40, 42), the non-return valve having at least one closing element (72) and at least one non-return valve seat (71), wherein the closing element (72) cooperates sealingly with the non-return valve seat (71) in the closed state of the non-return valve (70).
2. The fluid device (12) according to claim 1, characterized in that The fluid distributor element has a plurality of integrated check valves.
3. The fluid device (12) according to any one of the preceding claims, characterized in that The fluid distributor element has at least one fluid distributor element bottom carrying a nonreturn valve seat and at least one fluid distributor element cover closing a fluid actuating element, wherein the closing element of the nonreturn valve is designed as an insert which is inserted into the fluid distributor element bottom.
4. The fluid device (12) according to any one of the preceding claims, characterized in that The fluid distributor unit has a plurality of fluid-operating elements, wherein the fluid-operating elements are preferably designed as fluid lines and / or flow channels, preferably substantially rectangular flow channels.
5. The fluid device (12) according to any one of the preceding claims, characterized in that The closing element has at least one sealing body cooperating with the non-return valve seat and at least one guide coupling section, wherein the guide coupling section is preferably arranged on a side of the sealing body facing away from the non-return valve seat.
6. The fluid device (12) according to any one of the preceding claims, characterized in that The flow space of the flow channel is basically arranged inside the bottom of the fluid distributor element, wherein the fluid distributor element cover is preferably constructed as a basically plate-shaped element extending basically parallel to the bottom of the fluid distributor element, wherein the bottom of the fluid distributor element is preferably constructed as a half shell extending basically in the horizontal direction.
7. The fluid device (12) according to any one of the preceding claims, characterized in that The guide coupling section of the closing element is arranged centrally in the flow channel and preferably extends essentially in a horizontal direction, wherein the guide coupling section preferably has at least one first guide element, which cooperates with at least one second guide element of the fluid operating element to guide the closing element during an adjustment movement of the check valve.
8. The fluid device (12) according to any one of the preceding claims, characterized in that The first guide element is designed as a spring strip and the second guide element is designed as a groove element, wherein the closing element preferably has at least two first guide elements which respectively interact with at least one second guide element of the fluid operating element.
9. The fluid device (12) according to any one of the preceding claims, characterized in that The two first guide elements are arranged diametrically opposite one another.
10. The fluid device (12) according to any one of the preceding claims, characterized in that The second guide elements are each arranged in opposite corner regions of the fluid handling element, wherein the two first guide elements are preferably arranged at an angle of substantially 90° relative to one another.
11. The fluid device (12) according to any one of the preceding claims, characterized in that The guide coupling section has a mounting positioning element, in particular a mounting positioning element which is embedded in a recess in the housing wall of the fluid operating element in a form-fitting manner, and is used to position the closing element during welding of the fluid distributor element cover, wherein the mounting positioning element preferably has a locking element, in particular a locking lug embedded in the recess.
12. The fluid device (12) according to any one of the preceding claims, characterized in that The guide coupling section has a stop element which, in the open state of the non-return valve, interacts with a projection of the fluid distributor element cover in order to reduce a rotation of the closing element.
13. The fluid device (12) according to any one of the preceding claims, characterized in that The sealing body and the guide coupling element are formed integrally, in particular as an injection-molded part, in particular as a two-component injection-molded part, wherein the sealing body is preferably composed of a softer material than the guide coupling element.
14. The fluid device (12) according to any one of the preceding claims, characterized in that The sealing body has a coating, preferably a rubber coating, particularly preferably a rubber coating applied as a liquid coating spray.
15. Dispenser unit for a fluid device (12) according to any of the preceding claims.
16. Closure element for a fluid device (12) according to any of the preceding claims.
17. Method for producing a dispenser unit for a fluid device (12) according to any one of the preceding claims, the method comprising the following steps: - providing a fluid distributor element bottom having at least one fluid operating element with a non-return valve seat; - inserting the closing body into the fluid operating element, wherein at least one first guide element of the guide coupling element of the closing element engages in at least one second guide element of the fluid operating element, and wherein preferably the mounting and positioning element of the guide coupling section of the closing element engages in a recess in the housing wall of the fluid operating element; - positioning the fluid distributor element cover on the fluid distributor element bottom; - welding the fluid distributor element cover to the fluid distributor element bottom.