Receiving housing for connecting line in hollow mounting rod

By introducing an axial flexible wall area and an elastic cover into the housing, combined with the design of the support profile, the problems of high assembly costs and unstable contact in the prior art are solved, and a low-cost, simple assembly process and stable assembly The connection cable is fixed.

CN119209078APending Publication Date: 2024-12-27ZF FRIEDRICHSHAFEN AG
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Patent Information

Application Number
CN202410810042.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2023-06-27
Filing Date
2024-06-21
Publication Date
2024-12-27

AI Technical Summary

Technical Problem

The existing housing housing is expensive during assembly and is difficult to achieve simple and clear assembly, and the plug-in connection of the connecting wires may be limited, resulting in unstable closed contacts.

Method used

Design a housing housing with axially flexible wall area, and the height change and fixation of the housing housing through the cover and support profile of the flexible material, ensuring axial displacement of the connecting line, and preventing dirt and wet by deformation of the elastic material Qi accumulates.

Benefits of technology

A low-cost, simple and clear assembly process is realized, ensuring stable fixation and axial displacement of the connecting wires, and avoiding restrictions and dirt accumulation during the assembly process.

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Abstract

The invention relates to a receiving housing for a connecting line in a hollow mounting rod, the receiving housing for the connecting line having a receiving space which is formed by a main body and a cover in combination and which radially overlaps with a receiving opening in order to form a mounting space for the connecting line, the main body has a supporting surface for axially fixing the accommodating housing, the accommodating housing has an axially flexible wall region, and the wall region can be used for changing the height of the accommodating housing relative to the supporting surface. At least a portion of the connecting line is operatively connected in a force-transmitting manner at least in a specific region in a manner dependent on the height of the receiving housing such that a change in the height of the receiving housing causes an axial displacement of the connecting line.
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Description

Technical Field

[0001] The invention relates to a containing shell. Background Art

[0002] Patent document KR102160468 A1 discloses a housing for a connecting line in a hollow assembly rod. In this specific application example, the assembly rod is formed by a piston rod and an adjustable damping valve fastened thereto. The housing is of multi-piece design and has a swing-action cover. During assembly, a plug-in connector fastened to the connecting line is placed on the housing connector of the line in the hollow piston rod. The second end of the connecting line is then pushed through the housing bushing of the housing. Thereafter, the housing can be placed and fixed to the mounting portion of the piston rod. The cost of this multi-piece housing is relatively high. In addition, in order to be able to establish the closed contact as expected, it may be necessary to perform a correction movement on the plug-in connector. However, as a result, access through the housing wall surrounding the connecting line is restricted. Summary of the invention

[0003] The object of the invention is to obtain a simple and clear containment housing requiring a low level of assembly costs.

[0004] This object is achieved by a containing shell having an axially flexible wall area, which wall area can be used to change the height of the containing shell relative to the supporting surface, wherein at least a part of the connecting line is operatively connected in a force-transmitting manner at least in a specific area in a manner that depends on the height of the containing shell, so that a change in the height of the containing shell causes an axial displacement of the connecting line.

[0005] Due to the simple and clear construction, the design of the receiving housing is not only associated with cost advantages, but also makes it easier to assemble the connecting lines.

[0006] In one embodiment, the cover is designed to be at least partially axially displaceable as part of the wall region.

[0007] A preferred configuration of the cover's ability to move is achieved by means of a cover comprising a flexible material. In a defined form of the cover, the cover comprises an elastic material. With a defined deformation of the cover, the cover springs back into its initial position. This makes it possible to prevent the cover from having a crater-like surface in which, for example, dirt and moisture could accumulate.

[0008] It has proven to be particularly advantageous if the cover has a convex shape relative to the receiving space. This convex shape not only assists the stability of the cover but also allows for straightforward deformation.

[0009] In another advantageous configuration, the body has a support profile which fixes the housing in at least two degrees of freedom. This can include, for example, fixing to the vehicle body or to the vehicle compartment. Depending on the requirements, for example, the axial fixation can be combined with an anti-rotation or anti-pull-out element.

[0010] Furthermore, the bearing contour can include an anti-rotation contour. The anti-rotation contour also ensures that the connecting line is fixed in its angular orientation.

[0011] In another variant, the body has an axially flexible wall region.The form of the cover can then be configured according to other requirements.

[0012] Preferably, the flexible wall region is formed by a corrugated profile. As a result, the guided deformation movement is assisted and even repeated assembly movements of the connecting line do not result in any damage to the containment housing.

[0013] Optionally, the housing can have a holding area for a sub-section of the connecting line. A preferred sub-section is, for example, a plug connector of the connecting line. Therefore, a rotational deformation of the housing also causes a change in the angular orientation of the connecting line and / or the plug connector.

[0014] It has proven to be particularly advantageous if the holding area is formed on the inner side of the cover. In particular, a plug connection fastened to the cover can be guided very precisely, for example to a connecting opening of a mounting rod of the vibration damper. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The invention is explained in more detail in the following description based on the accompanying drawings, in which:

[0016] Figure 1 A cross-sectional view of the receiving housing and the mounting portion is shown;

[0017] Figure 2 A cross-sectional view of the containment housing is shown;

[0018] Figure 3 shows a cross-sectional view through the cover of the mounting portion;

[0019] Figure 4 An external view of the containing housing is shown;

[0020] Figure 5 Shows Figure 1 External view of

[0021] Figure 6 Shown according to Figure 1 Alternative variations of the embodiments of;

[0022] Figure 7 and Figure 8 Shown according to Figure 6A cross-sectional view of the containment housing is shown. DETAILED DESCRIPTION

[0023] Figure 1 The present invention shows a housing 1 for a connection line 3 in a hollow mounting rod 5 in the application of a mounting part 7 of a shock absorber. In the present application, the piston rod of the shock absorber forms the mounting rod 5. A shock absorber of this type is known, for example, from patent document DE 19822 448 A1. The mounting part 7 can be supported, for example, on a vehicle body (not shown) and comprises a support housing 9 in which an elastomer element 11 supports the mounting rod 5 together with a support ring 13. A cover 14 closes the mounting part 7 toward the housing 1, which forms a separate component relative to the supporting housing 9.

[0024] For the connection line 3 connected to the adjustable damping valve in the shock absorber, the housing 1 has a housing space 15, which is formed by a body 17 in combination with a cover 19, so as to form an external protection for the housing opening 21 for the assembly space in the assembly rod 5. In the present application, the assembly space is formed by the tubular assembly rod 5. The connection line 3 has a plug-in connector 23, which engages with a housing connector (not shown) of the connection line in the assembly rod 5. Patent document DE 10 2019 216 714A1 describes a possible technical configuration of the plug-in connector 23 and the housing connector.

[0025] The accommodation space 15 radially overlaps with the accommodation opening 21 to form an assembly space for the connecting line 3 , wherein the main body 17 has a support surface 25 for axially fixing the accommodation housing 1 to the cover 14 of the mounting portion 7 .

[0026] Furthermore, the receiving housing 1 has a through opening 27 for passing through that part of the connecting line 3 which is located outside the receiving housing 1. In the present application, the main axis 29 of the through opening 27 and the main axis 31 of the receiving opening 21 form a right angle in the mounting rod 5.

[0027] The containment housing 1 preferably at least predominantly comprises plastic and has an axially flexible wall region 33, which can be used to change the height of the containment housing 1 relative to the support surface 25. The flexibility of the wall region 33 is selected so that, according to a defined deformation path of the containment housing 1, at least a portion of the connecting line 3 is connected to the containment housing 1 in a force-transmitting manner. This deformation and / or height change of the containment housing 1 in combination with the contact with the connecting line 3 causes the connecting line 3 to be displaced axially.

[0028] In the present embodiment, since the cover 19 comprises a flexible material, the cover 19 is designed to be at least partially axially movable as part of the wall region 33. The deformation of the cover 19 is shown by the dashed lines.

[0029] The cover 19 contains an elastic material, preferably also a plastic, wherein the elasticity can be achieved, for example, by a thinner wall thickness than the body 17 , so that the body 17 and the cover 19 can be formed in one piece.

[0030] The cover 19 has a convex shape relative to the receiving space 15 so that dirt and moisture cannot be trapped.

[0031] Depend on Figures 2 to 5 It can be clearly seen from the combination that the body 17 has a support contour 35 which fixes the receiving housing 1 in at least two degrees of freedom. Figure 3 The cover 14 of the mounting part 7 is shown in a cross-sectional view. The surrounding groove 37 with the window-like cutout 39 facing radially outwards can be seen. Figure 2 and Figure 4 The housing 1 is shown, in particular the bearing contour 35 with an annular bead 41 as a seal, which engages in a circumferential groove 37 of the cover 14. When the support surface 25 of the housing 1 is supported on the cover 14 of the mounting part 7, part of the volume of the annular bead 41 is displaced into the window-like cutout 39. See Figure 1 A fixing ring 43 , which is clamped, for example, between an outer support 45 on the body 17 and a trailing side 47 of the support surface 25 , promotes a preload on the annular bead 41 .

[0032] In addition, the body 17 can also have at least one radially protruding form-fitting element 49, which engages in an axially open radial groove 51 of the cover 14. This open radial groove is also connected to the annular groove 37, and a plurality of said grooves can be distributed along the circumference.

[0033] The portion of the volume of the annular bead 41 that is displaced into the window-shaped cutout 39 ensures that the fully assembled housing 1 is placed in an axially fixed manner on the mounting portion 7. The open radial groove 51 and the form-fitting element 49 on the bearing contour 35 form an anti-rotation contour to prevent a rotational movement of the housing 1 relative to the mounting portion 7.

[0034] During assembly, one end of the connecting line 3 is led from the receiving space through the through-opening 27. The plug-in connector 23 is then positioned inside the receiving space 15 and oriented toward the open end of the receiving housing 1. Thereafter, the plug-in connector 23 is inserted into the receiving opening 21 of the assembly rod 5. As is known from the mentioned prior art, the plug-in connector 23 and the mating connector are configured such that a simple and clear axial movement completes the coupling connection.

[0035] In a further operating step, the receiving housing 1 is placed with its bearing contour 35 and its support surface 25 on the cover 14 of the mounting part 7. This produces a mechanical fixation of the receiving housing 1 on the mounting part 7. The optional fixing ring 43 can then also be mounted.

[0036] Finally, an axial deformation force is exerted on the cover 19 of the receiving housing, as a result of which the direct contact plug-in coupling 23 performs an additional axial insertion movement into the receiving opening 21 of the assembly rod 5 until the plug-in coupling has reached its predetermined axial end position. When the deformation force is withdrawn, the cover 19 resumes its relaxed shape, which is preferably a convex shape.

[0037] The basis of the present invention Figures 6 to 8 Embodiments of the present invention also relate to a housing for holding the connecting line inserted into the assembly bar. Here, a part for holding the housing is designed to be axially movable, so that the plug-in connector enters the final position in the assembly space in the assembly bar.

[0038] According to the present invention Figures 1 to 5 In contrast to the embodiment of the present invention, the main body 17 of the housing 1 has an axially flexible wall region 33. The flexible wall region 33 is formed by a corrugated profile 53. The corrugated profile 53 is formed axially between the support surface 25 on the cover 14 of the mounting part 7 and the cover 19 of the housing 1. Depending on the deformation path required for assembling the plug-in connector 23, only a sub-portion of the main body 17 is provided with the corrugated profile 53.

[0039] from Figure 7 and Figure 8 As can be clearly seen from the combination of the housing 1, the housing 1 has a holding area 55 for a subsection of the connecting line 3. As an example, the holding area 55 is formed on the inner side of the cover 19 as a receiving recess for the plug-in connector 23.

[0040] Here, during assembly, the connecting line 3 is also first passed through the through-opening 27. Thereafter, the plug-in connector 23 is inserted into the optional holding area 55 on the cover 19, as a result of which the plug-in connector 23 is also oriented toward the assembly space within the assembly rod 5. In a further operating step, the receiving housing 1 is connected to the mounting part 7. As an example, the receiving housing 1 can be pushed into the mounting part 7. Subsequently, an axial deformation force is applied to the body 17, as a result of which the body 17 is axially compressed in the area of ​​the corrugated profile 53, and the cover 19, which is thus pressed down, ensures the final axial displacement of the plug-in connector 23.

[0041] List of reference numerals:

[0042] 1 Housing

[0043] 3. Connecting wire

[0044] 5Assembly rod

[0045] 7 Installation

[0046] 9 bearing shell

[0047] 11Elastomer elements

[0048] 13 Support ring

[0049] 14 Cover of mounting portion 7

[0050] 15Accommodation space

[0051] 17 Main Body

[0052] 19 Housing cover

[0053] 21Accommodate opening

[0054] 23 Plug-in connector

[0055] 25 Support surface

[0056] 27Through opening

[0057] 29 Main axis

[0058] 31 Main axis

[0059] 33 Flexible wall area

[0060] 35 Support profile

[0061] 37 Surrounding groove

[0062] 39 Window-like incision

[0063] 41 Circular Curling

[0064] 43 fixing ring

[0065] 45 Support

[0066] 47 tail side

[0067] 49Form-fitting elements

[0068] 51 radial grooves

[0069] 53 corrugated profile

[0070] 55 holding area.

Claims

1. A housing (1) for a connecting line (3) in a hollow mounting rod (5), wherein: The accommodating shell (1) for the connecting line (3) has an accommodating space (15), which is formed by a combination of a main body (17) and a cover (19), and the accommodating space radially overlaps with the accommodating opening (21) to form an assembly space for the connecting line (3), wherein the main body (17) has a supporting surface (25) for axially fixing the accommodating shell (1), characterized in that the accommodating shell (1) has an axially flexible wall area (33), which can be used to change the height of the accommodating shell (1) relative to the supporting surface (25), wherein at least a part of the connecting line (3) is operatively connected in a force-transmitting manner at least in a specific area in a manner that depends on the height of the accommodating shell (1), so that a change in the height of the accommodating shell (1) causes an axial displacement of the connecting line (3).

2. The accommodating shell according to claim 1, characterized in that: The cover (19) is designed to be at least partially axially movable as part of the wall region (33).

3. The accommodating shell according to claim 2, characterized in that: The cover (19) comprises a flexible material.

4. The accommodating shell according to claim 3, characterized in that: The cover (19) comprises an elastic material.

5. The accommodating housing according to any one of claims 1 to 4, characterized in that: The cover (19) has a convex shape relative to the receiving space (15).

6. The accommodating housing according to any one of claims 1 to 5, characterized in that: The body (17) has a support contour (35) which fixes the receiving housing (1) relative to the mounting part (7) in at least two degrees of freedom.

7. The accommodating shell according to claim 6, characterized in that: The bearing contour (35) comprises an anti-rotation contour (49).

8. The accommodating shell according to claim 1, characterized in that: The body (17) has an axially flexible wall region (33).

9. The accommodating shell according to claim 8, characterized in that: The flexible wall region (33) is formed by a corrugated profile (53).

10. The accommodating housing according to any one of claims 1 to 9, characterized in that: The receiving housing (1) has a holding area (55) for a subsection of the connecting line (3).

11. The accommodating housing according to claim 10, characterized in that: The holding area (55) is formed on the inner side of the cover (19).