DE102008026466A1 - Hinge coupling for air-conditioning system of motor vehicle, has projection that bridges empty space, and builds contact in joint socket on contact area between joint head and joint socket - Google Patents

Abstract

The hinge coupling (1) has a partially concave joint head (2) and a partially convex joint socket (4), in which the joint head is carried. The joint head is supported in the joint socket by a form-fit connection between a concave area (6) of the joint head and a convex area (7) of the joint socket. A projection (12) is arranged on the joint head or on the joint socket. The projection bridges an empty space (9), and builds a contact in the joint socket on a contact area (13) between the joint head and the joint socket.

Description

The The invention relates to a hinge joint comprising at least one partially concave condyle, an at least partially convex socket, in which the condyle is received, wherein by means of a positive Connection between a concave area of the condyle and a convex portion of the socket the condyle in the socket is mounted or vice versa, one on the condyle and / or on the Socket to recess arranged so that one, preferably closed, empty space between the condyle and the socket results in a connecting rod connected to the socket for transmitting of forces and a lever connected to the condyle for transferring forces. Furthermore, the Invention, an automotive air conditioning system and a motor vehicle.

In Automotive air conditioning systems are used ball joints, around between connecting rods and levers forces without one Transfer canting at a spatial deflection to be able to. For other connec tions, z. A hinge, Canting can occur. By means of the ball head connections are generally transmitted by drive units on air dampers forces for movements of the louvers. Between the ball socket and the Ball head exists between the contact surfaces a game of about 0.05 mm each to make a movement between to allow the ball socket and the ball head. The connecting rod and / or the lever can rotate with a Rotary axis, the longitudinal axis of the connecting rod and / or of the lever. In addition, can the ball head in the ball socket due to a translational movement to play the game, d. H. the center of the ball head and the ball socket change to each other. The rotation movement and the translation movement is not wanted and caused Noises, z. As a rattling or rattling, from the Relative movement between the ball head and the ball socket result.

The DE 101 49 609 A1 shows a generic joint for chassis suspensions and / or steering of motor vehicles. A spherical hinge portion with a pivot pin is rotatably and tiltably received in a joint housing at its free end. The spherical hinge portion has a recess, so that there is a void between the spherical hinge portion and the joint housing. Disadvantageously, the spherical hinge portion can perform a rotational movement about an axis of rotation which corresponds to the longitudinal axis of the pivot pin, so that noise can be caused thereby.

From the DE 32 10 954 A1 is a generic joint connection for a cross, gimbal or swivel joint known. A ball with a stump is held by a housing with a spherical surface. The ball has a recess which forms a void between the ball and the spherical surface. In the void, a lubricant can be introduced by means of a lubricating device. An undesirable rotational movement of the ball can thus not be prevented in a disadvantageous manner, ie it is to be expected with noise.

The The object of the present invention is therefore to provide a joint connection, an automotive air conditioning system and a motor vehicle available to make, that in a simple structural design noises, that of a relative movement between components of the articulation caused prevented. Furthermore, the joint should be inexpensive to manufacture and allow easy installation as well as reliable operation.

These Task is solved with a hinge connection, comprising an at least partially concave condyle, one at least partially convex socket in which the condyle was added is, wherein by means of a positive connection between a concave portion of the condyle and a convex portion the articular socket of the condyle is mounted in the socket or vice versa, one on the condyle and / or on the socket recess arranged in such a way that one, preferably closed, White space between the condyle and socket results in one with the Joint socket connected connecting rod for transmitting of forces and a lever connected to the condyle for transmitting forces, wherein at the condyle and / or on the socket a projection is arranged, which the Space is bridged and one in each position of the condyle in the socket existing contact on a first contact area between the condyle and the socket manufactures. The projection causes in every position of the condyle in the joint socket during a movement, in particular tilting movement, of the condyle friction forces, so that undesirable Rotation and translation movements are prevented, which Cause noises. The void is preferably due of the bridging projection annular.

In a further embodiment, a force can be transmitted from the condyle to the socket or, conversely, to the first area of contact in order to place the condyle in the socket under Vor to keep tension. The transmitted force causes the condyle in the joint socket under bias, that is also held non-positively, so that a movement of the condyle causes frictional forces.

In a supplementary embodiment is the first Contact area in a projection on a flat surface punk-shaped or circular.

Preferably stand the condyle and the socket by means of a second annular contact area in contact with each other.

In an additional variant depends on the size the second annular contact area of the at the transferred first force from the first contact area.

In another embodiment takes the size, in particular the width, of the annular contact area from, the larger the transmitted at the first contact area Power is.

Especially is the surface defining the recess on the condyle and / or at the socket at least partially flat.

expedient the projection is at least partially convex. The convex Area of the projection is preferably that portion of the Vorsprung, which forms the first contact area.

In an additional variant, the projection is at least partially spherical. For a flat surface on the condyle which bounds the recess of the condyle, thus occurs in a projection on a flat surface circular first contact area.

In a complementary embodiment is the condyle at least partially spherical in shape as a ball head. The ball head is thus at least partially spherical with a certain radius.

In In another variant, the socket is at least partially spherically formed as a ball socket.

Especially is the movement of the condyle in the socket of one third contact area on the condyle or lever and socket or connecting rod limited. The third contact area provides thus a stop for limiting the movement of the condyle in the socket.

In In a further embodiment, the third contact area is by means of two frustoconical contact surfaces formed each on the joint head or on the lever and on the socket or on the connecting rod, producible.

A Automotive air conditioning includes one in this patent application described hinge connection.

One Motor vehicle comprises one described in this patent application Automotive air conditioning or one in this patent application described hinge connection.

in the Below are two embodiments of the invention with reference to the accompanying drawings described. It shows:

1 a cross-section of a hinge connection in a first embodiment and

2 a cross-section of the hinge connection in a second embodiment.

In 1 is a cross section of a hinge connection 1 imaged for an automotive air conditioning system. The articulation 1 serves to move louvers of the automotive air conditioning system by means of an electric motor. The louvers are arranged in air ducts (not shown). The motor vehicle air conditioner serves to cool and / or heat the air to be supplied to the interior. For this purpose, the motor vehicle air conditioning system is provided with a heating device and / or a refrigerant evaporator (not shown).

The articulation 1 includes one as a ball head 3 trained condyle 2 which is partially spherical. At the ball head 3 is a lever 11 arranged. One as a ball socket 5 trained joint socket 4 is with a connecting rod 10 Mistake. The ball head 3 and the lever 11 as well as the ball socket 5 and the connecting rod 10 are made in one piece from plastic by means of injection molding. The ball head 3 is form-fitting with the ball socket 5 connected. A concave area 6 of the ball head 3 is complementary to a convex area 7 the ball socket 5 educated. The ball head 3 is at the end with a recess 8th provided, leaving a void 9 between the ball head 3 and the ball socket 5 results. A surface 16 on the ball head 3 which the recess 8th limited, is just.

At the ball socket 5 is a spherical projection 12 arranged the space 9 bridged and a contact between the ball socket 5 and the ball head 3 at a first contact area 13 manufactures. The ball head 3 is also on a second annular contact area 14 in contact with the ball socket 5 , The geometry of the ball socket 5 with a lead 12 and the ball head 3 with recess 8th are designed so that the ball head 3 under tension in the ball socket 5 is arranged, ie that a compressive force of the projection 12 at the first contact area 13 on the ball head 3 is applied. Furthermore, there is in every position of the ball head 3 in the ball socket 5 the contact between the projection 12 and the ball head 3 , This pressure force causes the ball head 3 against the convex area 7 the ball socket 5 is pressed, so that at the second annular contact area 14 a pressure force directed against this pressure force on the ball head 3 acts. This causes the ball head 3 and the ball socket 5 at the first and second contact areas 13 . 14 free of play in direct contact, allowing for relative movement of the ball head 3 to the ball socket 5 those at the first and second contact areas 13 . 14 occurring friction forces must be overcome. The size of the annular second contact area 14 is dependent on the at the first contact area 13 occurring compressive force because of the ball head 3 and the ball socket 5 have elastic properties. The greater the pressure force at the first contact area 13 is, the smaller is the size, in particular the width of the - viewed spatially - second contact area 14 , Outside the first and second contact area 13 . 14 occurs between the ball socket 5 and the ball head 3 a game 15 , z. In the range of 0.01 to 2.0 mm.

A rotational movement of the connecting rod 10 with a rotation axis, that of a first longitudinal axis 18 the connecting rod 10 corresponds, thus overcoming the friction forces. This applies analogously for a ro tationsbewegung the lever 11 with a rotation axis, that of a second longitudinal axis 19 of the lever 11 equivalent. Also a translational movement of the ball head 3 in the ball socket 5 is obstructed in this way, because at the first and second contact area 13 . 14 no game 15 consists. At the articulation 1 occur so no unwanted noise, eg. As a rattling or rattling, because of uncontrolled movements of the ball head 3 or the lever 11 and the ball socket 5 or the connecting rod 10 on.

The limitation of the movement, in particular tilting movement, of the ball head 3 in the ball socket 5 or vice versa is from a third contact area (not shown) on the ball socket 5 and on the lever 11 allows. At the ball socket 4 and on the lever 11 is ever a frustoconical contact surface 17 educated. With a tilting movement of the ball head 3 in the ball socket 5 occur from a certain tilt angle, the two frustoconical contact surfaces 17 at the third contact area in connection and limit in this way as a stop the movement of the ball head 3 , The lead 12 thus does not serve as a stop to limit the movement of the ball head 3 ,

In 2 is a second embodiment of the hinge connection 1 shown. In contrast to the first embodiment according to 1 is the lead 12 on the ball head 3 arranged. Otherwise, the second embodiment corresponds in an analogous manner to the first embodiment.

Overall, considered with the hinge connection according to the invention 1 significant benefits. In motor vehicles, especially in motor vehicle air conditioners, no unnecessary rattling and rattling noises occur at joint connections. This improves comfort and reliability with simple means.

1

articulation

2

joint head

3

ball head

4

socket

5

ball socket

6

concave Area

7

convex Area

8th

recess

9

whitespace

10

connecting rod

11

lever

12

head Start

13

first contact area

14

second contact area

15

game

16

Surface, Restricting recess

17

Truncated cone-shaped contact area

18

First Longitudinal axis of the connecting rod

19

Second Longitudinal axis of the lever

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - DE 10149609 A1 [0003]
• - DE 3210954 A1 [0004]

Claims (15)

Articulated connection ( 1 ), comprising - an at least partially concave joint head ( 2 ), - an at least partially convex socket ( 4 ), in which the condyle ( 2 ), wherein by means of a positive connection between a concave area ( 6 ) of the condyle ( 2 ) and a convex area ( 7 ) of the socket ( 4 ) the condyle ( 2 ) in the socket ( 4 ) or vice versa, - one on the condyle ( 2 ) and / or on the socket ( 4 ) arranged recess ( 8th ), that a, preferably closed, space ( 9 ) between condyle ( 2 ) and socket ( 4 ), - one with the socket ( 4 ) connected connecting rod ( 10 ) for transmitting forces and - one with the condyle ( 2 ) connected lever ( 11 ) for transmitting forces, characterized in that on the condyle ( 2 ) and / or on the socket ( 4 ) a lead ( 12 ), which sets the white space ( 9 ) bridged and one in each position of the condyle ( 2 ) in the socket ( 4 ) existing contact at a first contact area ( 13 ) between the condyle ( 2 ) and the socket ( 4 ). Articulated connection according to claim 1, characterized in that from the condyle ( 2 ) on the socket ( 4 ) or vice versa at the first contact area ( 13 ) a force is transferable to the condyle ( 2 ) in the socket ( 4 ) under bias. Articulated connection according to claim 1 or 2, characterized in that the first contact area ( 13 ) is punk-shaped or circular in a projection on a flat surface. Articulation according to one or more of the preceding claims, characterized in that the condyle ( 2 ) and the socket ( 4 ) by means of a second annular contact region ( 14 ) are in contact with each other. Hinge connection according to claim 4, characterized in that the size of the second annular contact area ( 14 ) of the at the first contact area ( 13 ) transmitted force depends. Articulated connection according to claim 5, characterized in that the size, in particular the width, of the second annular contact region ( 14 ) decreases, the larger the at the first contact area ( 13 ) transmitted force. Hinge connection according to one or more of the preceding claims, characterized in that the recess ( 8th ) limiting surface ( 16 ) on the condyle ( 2 ) and / or on the socket ( 4 ) is at least partially flat. Hinge connection according to one or more of the preceding claims, characterized in that the projection ( 12 ) is at least partially convex. Hinge connection according to one or more of the preceding claims, characterized in that the projection ( 12 ) is at least partially spherical. Articulation according to one or more of the preceding claims, characterized in that the condyle ( 2 ) is at least partially spherical in shape as a ball head ( 3 ). Articulated connection according to one or more of the preceding claims, characterized in that the socket ( 4 ) is at least partially spherical in shape as a ball socket ( 5 ). Articulation according to one or more of the preceding claims, characterized in that the movement of the condyle ( 2 ) in the socket ( 4 ) from a third contact area on the condyle ( 2 ) or lever ( 11 ) and socket ( 4 ) or connecting rod ( 10 ) is limited. Hinge connection according to claim 12, characterized in that the third contact region by means of two frusto-conical contact surfaces ( 17 ), each formed on the condyle ( 2 ) or on the lever ( 11 ) and on the socket ( 4 ) or on the connecting rod ( 10 ), is producible. Motor vehicle air conditioning system, characterized in that the motor vehicle air conditioning system has an articulated connection ( 1 ) according to one or more of the preceding claims. Motor vehicle, characterized in that the motor vehicle is an automotive air conditioning system according to claim 14 or an articulated connection ( 1 ) according to one or more of claims 1 to 13.