EP4573306A1 - Verbindungsanordnung - Google Patents
VerbindungsanordnungInfo
- Publication number
- EP4573306A1 EP4573306A1 EP23757538.6A EP23757538A EP4573306A1 EP 4573306 A1 EP4573306 A1 EP 4573306A1 EP 23757538 A EP23757538 A EP 23757538A EP 4573306 A1 EP4573306 A1 EP 4573306A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- line element
- component
- temperature control
- control device
- connection arrangement
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on, or into, one of the joint parts
- F16L19/02—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
- F16L19/025—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member the pipe ends having integral collars or flanges
- F16L19/028—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member the pipe ends having integral collars or flanges the collars or flanges being obtained by deformation of the pipe wall
- F16L19/0283—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member the pipe ends having integral collars or flanges the collars or flanges being obtained by deformation of the pipe wall and having a bell-mouthed shape
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating devices
- B60H1/00507—Details, e.g. mounting arrangements, desaeration devices
- B60H1/00557—Details of ducts or cables
- B60H1/00571—Details of ducts or cables of liquid ducts, e.g. for coolant liquids or refrigerants
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L41/00—Branching pipes; Joining pipes to walls
- F16L41/08—Joining pipes to walls or pipes, the joined pipe axis being perpendicular to the plane of a wall or to the axis of another pipe
- F16L41/14—Joining pipes to walls or pipes, the joined pipe axis being perpendicular to the plane of a wall or to the axis of another pipe by screwing an intermediate part against the inside or outside of the wall
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
- H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
Definitions
- the invention relates to a connection arrangement for connecting a line element to a component of a temperature control device.
- connection arrangements are particularly necessary for use in temperature control circuits in the field of electromobility.
- Components of electric vehicles that need to be tempered include, in particular, electrical energy storage devices, but also the power electronics or plug connections of fast charging devices.
- An electrical energy storage device only has the best possible capacity in a very small temperature range.
- Another important aspect concerns the air conditioning of a vehicle interior, which is air conditioned with a temperature control device in the form of an air conditioning system.
- the temperature control circuit is a refrigerant circuit
- the temperature control agent can be a refrigerant, for example CO2 or a halogenated hydrocarbon.
- the temperature control medium can either be heated in a heating device or cooled in a cooling device.
- the temperature control medium is transported via lines to various components of the temperature control circuit.
- the pressure on the high pressure side can be around 170 bar and on the low pressure side around 100 bar.
- the bursting pressure is around 340 bar.
- the temperature of the temperature control medium can be in a range between -30 °C and 100 °C.
- the invention is based on the object of providing a connection arrangement for connecting a line element to a component of a temperature control device, which is easy to assemble and has a high level of operational reliability.
- the connecting element forms a collar which projects inwards, i.e. towards the longitudinal axis of the connecting element, and which is supported against the thickening on a side of the thickening facing the tubular section of the line element.
- the connecting element is thus held captively along the longitudinal axis of the line element in the direction of the thickening.
- the connecting element is rotatably arranged around the line element.
- the thread of the connecting element is formed on the side of the connecting element facing away from the recess and engages with the thread of the component. By screwing the thread of the connecting element into the thread of the component, the connecting element is moved relative to the component in the direction of the component.
- the collar of the connecting element formed by the recess By means of the collar of the connecting element formed by the recess, a force can be transmitted to the thickening of the line element.
- the line element and component are arranged in such a way that the contact section and contact section come into contact and the force is transmitted from the line element to the component.
- thickening is to be understood as meaning an external widening of the outer contour of the line element.
- the inner contour of the line element is initially independent of the thickening.
- the inner diameter can be constant in the area of the thickening.
- the inner contour correlates with the outer contour in the area of the thickening.
- Such a contour with a thickening on the outside can be created, for example, by upsetting.
- the connecting element can be made of metallic material.
- the connecting element is preferably made of steel or aluminum.
- the connecting element has the mechanical properties necessary for use in the field of temperature control devices, for example high strength. This allows operational safety to be further increased.
- the thickening of the line element can have a curved outer contour facing away from a longitudinal axis of the line element.
- the outer contour of the thickening can be essentially convex in relation to the longitudinal axis of the line element.
- the connecting element is supported on the side of the thickening facing the tubular section of the line element.
- the side of the thickening facing away from the tubular section of the line element partially comes into contact with the component and forms a sealing connection with the component.
- the outer contour of the thickening can be spherical.
- the radius of the ball is preferably in a range from 1 mm to 8 mm.
- Spherical can be understood as spherical cap-shaped or spherical disk-shaped.
- An angular offset of the line element with respect to the longitudinal axis of the channel can be compensated for by a substantially spherical design of the outer contour of the thickening.
- an angular misalignment can be compensated for in a range of up to 3°, thereby increasing the tolerance during assembly and improving mountability.
- the outer contour of the thickening is formed by other geometric shapes that are suitable for supporting the connecting element and for forming a sealing connection.
- the cross-section-enlarging transition from the tubular section to the thickening can be defined by a further radius.
- the radius of the transition is preferably in a range from 0.2 mm to 5 mm.
- the contact section can form a conical cross section. Due to the conical cross section, a moderate lateral offset of the line element from the component can be compensated for during assembly. With a moderate lateral offset during assembly, the contact section of the line element touches the contact section of the component laterally offset from the desired central position with essentially parallel longitudinal axes of the line element and channel. In the desired installation position, the longitudinal axes of the line element and channel essentially coincide and the The contact section rests completely on the contact section. With a moderate lateral offset, the contact section only rests in sections or at points on the contact section.
- the line element moves until the longitudinal axes of the line element and channel coincide.
- the line element is self-centering, which further improves the ability to assemble.
- the conical cross section can form a conical surface, the conical surface having an opening angle in a range of 10° to 70° to the longitudinal axis of the channel.
- the opening angle is particularly preferably in a range from 20° to 50°. This achieves good self-centering of the line element while maintaining a compact design of the component. This enables simplified assembly processes.
- the contact section forms a different shape of a widening cross-section instead of a conical cross-section.
- the expansion of the cross section is designed in the direction of the line element.
- the contact section can form a spherical or parabolic cross section.
- the force introduced into the guide element during assembly essentially acts along the longitudinal axis of the guide element. Due to the conical cross section of the contact section, force components act perpendicularly and transversely to the conical surface. As a result, an improved introduction of force can be achieved for the annularly designed contact section, which results in a high level of sealing and thus improved operational safety.
- the line element can be made of a first material with a first hardness and the contact section of the component can be made of a second material with a second hardness, the first hardness and the second hardness being different. Due to the different hardnesses, the component with the lower Hardness deformed when the contact section is pressed onto the contact section. The deformation is a plastic deformation, so the component with the lower hardness maintains the deformation permanently. This deformation ensures that the component with the lower hardness is molded onto the other component in such a way that surface pressure is created and both components come into contact with each other in a sealing manner. The seal therefore does not require a costly separate seal, which also further improves the ease of installation.
- the first hardness is smaller than the second hardness, so that the contact section of the line element is deformed in a sealing manner during assembly, while the contact section remains dimensionally stable.
- the first material comprises a first aluminum alloy and the second material comprises a second aluminum alloy, with the hardness of the two aluminum alloys differing.
- the contact section and/or the contact section can have a coating.
- the coating can have a material with a lower hardness compared to the material of the contact section or contact section.
- the coating can have copper. The coating can further improve the seal.
- the line element can have a wall thickness in a range of 0.7 mm to 3 mm.
- the wall thickness can be 1.5 mm.
- the line element forms a mechanically stable thickening, which is well suited to creating a sealing connection.
- desired deformations of the material can be achieved with moderate effort. This results in a sealing connection while being easy to install.
- the line element can be designed to be rotationally symmetrical, the thickening having a first outside diameter, the first outside diameter corresponding to the largest outside diameter of the thickening, the tubular section having a second outside diameter, the ratio of the first outside diameter to the second Outer diameter is in a range from 1.2 to 1.4.
- the outer diameters are measured perpendicular to the longitudinal axis of the line element.
- the ratio of the outer diameters to one another results in a sufficiently large contact surface for the connecting element on the thickening in order to be able to transfer the applied forces from the connecting element to the line element. Good force transmission is advantageous in order to press the contact section onto the contact section.
- a compact design of the connecting element is made possible.
- the first outside diameter can be in a range from 11 mm to 16 mm and the second outside diameter can be in a range from 8 mm to 13 mm.
- the thread of the connecting element can be designed as an internal thread and the thread of the component can be designed as an external thread.
- the connecting element is designed as a union nut.
- the union nut forms a sleeve-shaped section that covers the thickening during assembly and protects it from external influences.
- the thread of the connecting element can be designed as an external thread and the thread of the component can be designed as an internal thread.
- the connecting element is designed as a union screw.
- the connecting element can be screwed into the component so that only parts of the connecting element protrude from the component. This enables space-saving installation.
- the threaded connection can have a coating.
- the coating can have friction-optimizing properties, making it easier to screw the connecting element into the component and thus increasing the ability to assemble.
- the coating is designed as a corrosion protection coating.
- the coating preferably has properties that optimize friction and protect against corrosion.
- the invention further relates to a temperature control circuit, comprising at least one connection arrangement according to the invention for connecting a line element to a component of a temperature control device.
- the connection arrangement has a high level of operational reliability for temperature control circuits.
- the temperature control circuit can include a temperature control medium, with the temperature control medium flowing through the temperature control circuit.
- the temperature control medium can either be heated in a heating device or cooled in a cooling device.
- the temperature control medium can be transported via lines to various components of the temperature control circuit.
- a refrigerant such as R744 (CO2) or a halogenated hydrocarbon can be used as the temperature control medium.
- the invention also relates to an air conditioning circuit with a high-pressure side and a low-pressure side, with at least one of the sides having a connection arrangement according to the invention for connecting a line element to a component of a temperature control device.
- the ratio of the first outside diameter to the second outside diameter is in a range from 1.3 to 1.4 for a connection arrangement on the high-pressure side.
- the first outside diameter can be in a range from 11 mm to 13 mm and the second outside diameter can be in a range from 8 mm to 10 mm.
- the ratio of the first outside diameter to the second outside diameter is in a range from 1.2 to 1.3.
- the first outside diameter can be in a range from 14 mm to 16 mm and the second outside diameter can be in a range from 11 mm to 13 mm. This means that the relationship between power transmission and compact design is designed for the corresponding pressure conditions on the high-pressure side and low-pressure side.
- Fig. 1 shows a connection arrangement with a union screw
- Fig. 2 shows the connection arrangement in a dismantled state
- Fig. 3 shows a connection arrangement with a union nut
- FIGS. 1 to 3 shows a line element of the connection arrangements shown in FIGS. 1 to 3;
- Fig. 5 shows an alternative embodiment of a line element for one of the connection arrangements shown in Figures 1 to 3.
- connection arrangement 1 for connecting a line element 2 to a component 3 of a temperature control device in a sectional view.
- the connection arrangement 1 comprises a line element 2 with a tubular section 4 and a thickening 5 formed at one end of the line element 2, a component 3 with at least one channel 6 and a connecting element 7.
- the line element 2 is connected to the channel 6 in a flow-conducting manner.
- the connecting element 7 has a recess 8.
- the line element 2 is arranged in the recess 8 and is supported against the thickening 5, so that the connecting element 7 is held on the line element 2 in a form-fitting and captive manner by means of the thickening 5.
- the connecting element 7 is arranged rotatably around the line element 2.
- a contact section 13 adjoins the channel 6 of the component 3 on the side facing the line element 2.
- the cross section of the contact section 13 widens in the direction of the line element 2.
- the thickening 5 forms a contact section 12.
- the contact section 12 lies sealingly against the contact section 13.
- the connecting element 7 and the component 3 each have a thread 9, 10.
- the thread of the connecting element 9 is formed on the side of the connecting element 7 facing away from the recess 8 and is in engagement with the thread of the component 9.
- the threads 9, 10 form a threaded connection 11 out of.
- the threaded connection 11 includes a coating.
- the coating has properties that optimize friction and protect against corrosion.
- the connecting element 7 moves relative to the component 3 in the direction of the component 3.
- line element 2 and component 3 are arranged in such a way that contact section 12 and contact section 13 come into contact and the force can be transmitted from line element 2 to component 3.
- the thickening 5 of the line element 2 has a curved outer contour 15 facing away from a longitudinal axis of the line element 14.
- the outer contour 15 of the thickening 5 in relation to the longitudinal axis of the line element 14 is essentially convex.
- the connecting element 7 is supported on the side of the thickening 5 facing the tubular section 4 of the line element 2.
- the side of the thickening 5 facing away from the tubular section 4 of the line element 2 partially comes into contact with the component 3 and forms a sealing connection.
- the outer contour 15 of the thickening 5 is essentially spherical.
- the radius of the sphere is 6 mm.
- the cross-section-enlarging transition from the tubular section 4 to the thickening 5 is defined by a further radius. The radius of the transition is 1 mm.
- the contact section 13 forms a conical cross section, whereby a moderate lateral offset of the line element 2 from the component 3 can be compensated for during assembly.
- the longitudinal axis of the line element 14 and the longitudinal axis of the channel 17 coincide and the contact section 12 rests completely on the contact section 13.
- the conical cross section forms a conical surface 16, the conical surface 16 having an opening angle of 35° to the longitudinal axis of the channel 17.
- the line element 2 is made of a first material with a first hardness and the contact section 13 of the component 3 is made of a second material with a second hardness.
- the first hardness is smaller than the second hardness, so that the contact section 12 of the line element 2 is deformed in a sealing manner during assembly, while the contact section 13 remains dimensionally stable.
- the first material has a first aluminum alloy and the second material has a second aluminum alloy.
- the line element 2 is designed to be rotationally symmetrical and has a wall thickness of 2 mm.
- the thickening 5 has a first outside diameter D1 (shown in FIG. 4), the first outside diameter D1 corresponding to the largest outside diameter of the thickening 5.
- the tubular section 4 has a second outside diameter D2 (shown in Figure 4).
- the outer diameters D1, D2 are each measured perpendicular to the longitudinal axis of the line element 14.
- the ratio of the first outside diameter D1 to the second outside diameter D2 is 1.3.
- the first outside diameter D1 is 13 mm and the second outside diameter D2 is 10 mm.
- Figure 1 shows an embodiment of the connecting arrangement 1 in a sectional view, wherein the thread of the connecting element 9 is designed as an external thread and the thread of the component 10 is designed as an internal thread.
- the connecting element 7 is designed as a union screw and screwed into the component 3.
- Figure 2 shows the connection arrangement 1 for connecting a line element 2 to a component 3 of a temperature control device according to Figure 1 in a sectional view, the connecting element 7 not being shown in section.
- the connecting element 7 is shown in a state before assembly.
- the connecting element 7 is along the longitudinal axis of the line element 14 in one away from the component 3 along the tubular section 4 of the line element 2 from the thickening 5.
- the connecting element 7 has a device for engaging a tool at its end facing away from the component 3.
- the tool grip is designed as an external hexagon.
- Figure 4 shows in detail the line element 2 of the connection arrangement 1 according to Figures 1 to 3 in a sectional view. Accordingly, the line element 2 is shown in Figure 4 without the component 3 and the connecting element 7.
- the outer diameters D1 and D2 can be seen particularly well in Figure 4.
- Figure 5 shows in detail an alternative embodiment of the line element 2 of the connection arrangement 1 according to Figures 1 to 3 in a sectional view.
- the inner diameter of the line element 2 is constant and the thickening 5 is only formed on the outside of the line element 2.
- the inside diameter is constant, particularly in the area of the thickening 5.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Joints With Pressure Members (AREA)
- Resistance Heating (AREA)
- Flanged Joints, Insulating Joints, And Other Joints (AREA)
- Branch Pipes, Bends, And The Like (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE202022104716.2U DE202022104716U1 (de) | 2022-08-19 | 2022-08-19 | Verbindungsanordnung |
| PCT/EP2023/072055 WO2024037949A1 (de) | 2022-08-19 | 2023-08-09 | Verbindungsanordnung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4573306A1 true EP4573306A1 (de) | 2025-06-25 |
Family
ID=83361391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23757538.6A Withdrawn EP4573306A1 (de) | 2022-08-19 | 2023-08-09 | Verbindungsanordnung |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP4573306A1 (de) |
| JP (1) | JP2025526943A (de) |
| KR (1) | KR20250040061A (de) |
| CN (1) | CN119731462A (de) |
| DE (1) | DE202022104716U1 (de) |
| WO (1) | WO2024037949A1 (de) |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4046334B2 (ja) * | 2003-06-18 | 2008-02-13 | 臼井国際産業株式会社 | コモンレール用分岐接続体の接続構造 |
| DE502008001944D1 (de) * | 2008-06-17 | 2011-01-13 | Ti Automotive Heidelberg Gmbh | Schraubelement und Rohranschlusseinrichtung für den Anschluss von Rohrleitungen |
| US20130056978A1 (en) * | 2009-11-24 | 2013-03-07 | The Gates Corporation | Fluid coupling |
| EP2360405A1 (de) * | 2010-02-19 | 2011-08-24 | TI Automotive (Heidelberg) GmbH | Rohranschlusseinrichtung |
| EP2835568B1 (de) * | 2012-04-02 | 2019-07-24 | Mitsubishi Electric Corporation | Rohrverbindung verbunden mit einem rohr sowie entsprechendes verbindungsverfahren |
| EP2679873B1 (de) * | 2012-06-29 | 2017-05-31 | TI Automotive (Heidelberg) GmbH | Verbindungsaggregat aus einer Kraftfahrzeugrohrleitung und einem Verbindungsfitting |
| CN103791182B (zh) * | 2014-01-13 | 2016-02-03 | 广东美的厨房电器制造有限公司 | 管体连接结构和灶具 |
| DE102015200232A1 (de) * | 2015-01-12 | 2016-07-14 | Robert Bosch Gmbh | Verbindungsanordnung zum Ausbilden einer hydraulischen Verbindung |
| DE102019200837A1 (de) * | 2019-01-24 | 2020-07-30 | Audi Ag | Verfahren zum Herstellen einer Verbindungsanordnung, entsprechende Verbindungsanordnung sowie Fluidleitung |
| CN113958782A (zh) * | 2021-11-15 | 2022-01-21 | 上海众源燃油分配器制造有限公司 | 一种空调热泵系统管路接口端部密封结构 |
-
2022
- 2022-08-19 DE DE202022104716.2U patent/DE202022104716U1/de not_active Expired - Lifetime
-
2023
- 2023-08-09 CN CN202380060630.5A patent/CN119731462A/zh active Pending
- 2023-08-09 EP EP23757538.6A patent/EP4573306A1/de not_active Withdrawn
- 2023-08-09 KR KR1020257005759A patent/KR20250040061A/ko active Pending
- 2023-08-09 WO PCT/EP2023/072055 patent/WO2024037949A1/de not_active Ceased
- 2023-08-09 JP JP2025509135A patent/JP2025526943A/ja not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| CN119731462A (zh) | 2025-03-28 |
| KR20250040061A (ko) | 2025-03-21 |
| WO2024037949A1 (de) | 2024-02-22 |
| JP2025526943A (ja) | 2025-08-15 |
| DE202022104716U1 (de) | 2022-09-05 |
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