CN105992480B

CN105992480B - Controller

Info

Publication number: CN105992480B
Application number: CN201610118562.5A
Authority: CN
Inventors: 马蒂亚斯·埃利希
Original assignee: Schaeffler Technologies AG and Co KG
Current assignee: Schaeffler Technologies AG and Co KG
Priority date: 2015-03-23
Filing date: 2016-03-02
Publication date: 2021-04-13
Anticipated expiration: 2036-03-02
Also published as: DE102015205139A1; CN105992480A

Abstract

The invention relates to a control unit having a housing and having a plug unit which is fastened to the housing. The invention is characterized in that the plug unit comprises a through-opening to the interior of the housing.

Description

Controller

Technical Field

The invention relates to a control unit having a housing and having a plug unit, which is fastened to the housing. The invention also relates to a fluid-operated mechanism for fluid-operating at least one component, such as a clutch, having an actuator housing and having such a control. The invention further relates to a method for testing the tightness of such a control device, in particular of such a fluid-operated mechanism.

Background

A control unit having a housing with a cover is known from german laid-open patent application DE 102011015640 a1, wherein a pressure sensor is mounted on the cover from the outside in such a way that the electrical interface region between the cover and the pressure sensor is sealed from the surroundings.

Disclosure of Invention

The object of the invention is to simplify the tightness test on a control unit having a housing and having a plug unit fastened to the housing, in particular on a fluid-operated mechanism for fluid-operating at least one component, such as a clutch, having an actuator housing.

The object is achieved in a control unit having a housing and having a plug unit fastened to the housing by the plug unit comprising a passage opening to an interior of the housing. The interior of the housing can be acted upon, for example, with compressed air via the through-opening in a simple manner in order to detect whether the housing is sealed. The mounting of the through-opening in the plug unit provides the advantage that the through-opening can remain open when the plug unit is sealingly closed with a suitable mating plug. This offers the advantage that it is possible to dispense with the need to additionally cover the through-opening, for example with a water-impermeable, however gas-permeable film or with a label. The manufacture of the control unit is thereby significantly simplified.

A preferred embodiment of the control device is characterized in that the through-going holes are arranged at a safe distance from the contacts of the plug unit. This ensures that the contact is not damaged during the leak-tightness test with the aid of the test gun. A safe spacing in this context means that the contact does not touch the detection gun when the leak detection is carried out by means of the detection gun.

A further preferred embodiment of the control device is characterized in that the through-opening in the plug unit is accessible for the detection gun from outside the housing. This simplifies the leak detection. The through-going hole in the plug unit is thus accessible from outside the housing for the detection gun, in particular when the mating plug of the plug unit is removed.

A further preferred embodiment of the control unit is characterized in that the plug unit comprises a plug housing which has a through-opening and is connected in a sealing manner to a housing of the control unit. The seal between the plug housing and the housing of the control unit is achieved, for example, by means of a liquid seal. The plug housing of the plug unit and the housing of the control unit are, for example, two injection-molded parts. The housing of the controller can be made of the same material as the plug housing of the plug unit. However, the two housings can also be made of different materials.

A further preferred embodiment of the control unit is characterized in that the plug unit comprises a mating plug which can be connected to the plug housing in a sealing manner, preferably for the purpose of obtaining a plug connection and/or a snap connection. When a plug connection is established, for example, the contacts of the plug unit come into contact with the contacts of the mating plug. When the snap-fit connection is established, for example, a mating plug housing of the mating plug is connected to a plug housing of the plug unit. In order to obtain a snap-fit connection, for example, at least one latching hook is used, which is provided, for example, on the plug housing of the plug unit and engages into a corresponding opening of the mating plug housing when the mating plug is pushed onto the plug housing of the plug unit. For example, electrical and/or electronic connection cables lead out of the mating plug.

A further preferred embodiment of the control unit is characterized in that a plug seal is provided between the plug housing and the mating plug. The plug seal is, for example, an O-ring which is arranged between a plug body of the mating plug and a plug housing, in particular a plug housing wall of the plug housing. The plug unit is closed in a fluid-tight manner by the plug seal, so that the passage opening can remain open in the interior of the plug unit, without fluid passing through the passage opening in an undesired manner into the interior of the housing of the control unit.

The invention also relates to a fluid-operated mechanism for fluid-operating at least one component, such as a clutch, having an actuator housing and having the above-described controller. A fluid-operated mechanism for fluid-operating at least one clutch is also referred to as a clutch actuator. The control device is advantageously integrated into the clutch actuator. The clutch actuator is preferably a hydrostatic clutch actuator.

A preferred embodiment of the fluid actuating device is characterized in that the actuator housing and the housing of the control unit are combined to form a housing body which is closed by a housing cover. The actuator housing and the housing of the control unit can advantageously be produced by only one single housing part, in particular by injection-molded parts made of plastic material. The housing body can also be made of a metallic material, for example of an aluminum material. The housing cover is preferably used to enclose an electronics compartment in the housing of the controller. The housing cover can be made of the same material as the housing body. However, the housing cover can also be made of a different material than the housing body.

The invention also relates to a method for checking the tightness of a control unit of the type described above, in particular of a fluid actuating device of the type described above, by means of a checking gun which is placed on the plug unit from the outside in order to check the tightness. The detection lance is preferably mounted on the through-opening by means of a detection opening. The interior of the housing is therefore acted upon by pressure via the test gun via the feed-through opening. The controller or fluid-operated mechanism is sealed if a defined pressure is maintained over a certain period of time. The test gun can then be removed and the plug housing closed with a mating plug. The closure of the through-going bore is not necessary.

The invention also relates to an actuator housing, a plug unit, a housing, a plug housing, a mating plug, a plug seal and/or a housing body for a controller as described above, in particular for a fluid-operated mechanism as described above. The components are individually marketable.

Drawings

Further advantages, features and details of the invention emerge from the following description, in which different embodiments are described in detail with reference to the figures. The figures show:

FIG. 1 shows a cross-sectional view of a fluid operating mechanism with an integrated controller;

fig. 2 shows an enlarged detail of fig. 1 during a leak test by means of a test gun;

fig. 3 shows a side view of the detail from the right side of the plug unit in fig. 1; and

fig. 4 shows the same detail as in fig. 2, wherein the plug unit is closed by a mating plug.

Detailed Description

Fig. 1 to 4 show a fluid actuating device 1 with an actuator device 2 in different views. The actuator device 2 is, for example, a hydrostatic actuator having an electric motor and a planetary rolling gear, as is known from german published application DE 102011014932 a 1.

The actuator device 2 comprises an actuator housing 3 having a housing body 5. The housing body 5 is closed by a housing cover 9.

In the fluid operating mechanism 1, the controller 10 is combined with the actuator device 2. The control device 10 comprises a housing 13, which is connected in one piece to the housing body 5 of the actuator housing 3. An electronic device 16, for example comprising a printed circuit board, is arranged in the interior 14 of the housing 13.

In the fluid actuating device 1, on the one hand, a control 10 for the actuator device 2 is integrated. Furthermore, the plug unit 20 is integrated into the fluid actuating device 1.

The plug unit 20 comprises a plug housing 23, which is mounted on the actuator housing 3. The plug housing 23 comprises a plug housing wall 24 which closes an opening in the interior 14 of the housing 13 of the control device 10. The contacts 25 extend through the plug housing wall 24.

The end of the contact 25 projecting from the interior 14 of the housing 13 of the connector 10 is surrounded by a circumferential wall 26 in the connector unit 20. The circumferential wall 26 is connected in one piece with the plug housing wall 24 of the plug housing 23.

A through-opening 28 is provided in the plug housing wall 24 of the plug housing 23. The passage opening 28 is designed, for example, as a bore and connects the interior 14 of the housing 13 of the control unit 10 to an interior 29 enclosed by the circumferential wall 26 of the plug housing 23. The end of the contact 25 projecting from the interior 14 of the housing 13 of the controller 10 is arranged in the interior 29.

In the detail of fig. 1 shown in fig. 2, it is shown how the leak test is carried out on the control unit 10 or on the fluid actuating element 1 by means of a test gun 40. The detection gun 40 is seated on the plug housing wall 24 in the plug housing 23 in such a way that the end of the detection gun 40 on the left in fig. 2 surrounds the through-opening 28 in the plug housing wall 24.

The housing body 5 and the housing cover 9 are, for example, housing halves which are connected in a material-fit manner with a liquid seal. Furthermore, the plug unit 20 is sealed with respect to the housing body 5 by means of a liquid sealing material 27. The contacts 25 are formed as pins within the plug unit 20.

As can be seen in fig. 3, the through-opening 28 is arranged in the plug housing wall 24 at a safe distance from the contact 25. The test gun 40 can be connected in a sealing manner to the through-opening 28 from the outside, as can be seen in fig. 2, in order to perform a leak test.

In the subsequent use of the fluid actuating device 1, in particular of the actuator device 2 or of the control device 10, a seal is achieved with respect to the surroundings via the plug seal 35, as can be seen in fig. 4. The plug seal 35 is designed as an O-ring and is arranged in the radial direction between the plug body 31 of the mating plug 30 and the plug housing wall 24 of the plug housing 23 of the plug unit 20. The mating plug 30 comprises a mating plug housing 33 which, with a snap-fit connection, is slipped onto the plug housing 23 of the plug unit 20.

List of reference numerals

1 fluid operating mechanism

2 actuator device

3 actuator casing

5 casing body

9 casing cover

10 controller

13 casing

14 inner cavity

16 electronic device

20 plug unit

23 plug shell

24 plug housing wall

25 contact

26 surrounding the wall

27 liquid sealing material

28 through hole

29 inner cavity

30 mating plug

31 plug body

33 mating plug housing

35 plug sealing member

40 detection gun

Claims

1. A control device (10) having a housing (13) and having a plug unit (20) which is fastened to the housing (13),

characterized in that the plug unit (20) comprises a passage opening (28) to the interior (14) of the housing (13) for checking the tightness of the housing, wherein the plug unit (20) comprises a mating plug (30) which remains open when the plug unit is sealed by the mating plug.

2. A control according to claim 1, characterized in that the through-going hole (28) is provided at a safe distance from the contacts (25) of the plug unit (20).

3. A control according to any preceding claim, characterized in that the through-going hole (28) in the plug unit (20) is accessible from outside the housing (13) for a detection gun (40).

4. A controller according to claim 1 or 2, characterized in that the plug unit (20) comprises a plug housing (23) having the through going hole (28) and being sealingly connected with the housing (13) of the controller (10).

5. A control according to claim 4, characterised in that the mating plug can be sealingly connected with the plug housing (23) for obtaining a plug connection and/or a snap connection.

6. A control according to claim 5, characterised in that a plug seal (35) is provided between the plug housing (23) and the mating plug (30).

7. A fluid operating mechanism (1) having an actuator housing (3) and having a controller (10) according to any one of the preceding claims.

8. A fluid operating mechanism according to claim 7 wherein the actuator housing (3) is combined with the housing (13) of the controller (10) to form a housing body (5) which is closed by a housing cover (9).

9. A testing method for testing the tightness of a control (10) according to any one of claims 1 to 6 by means of a test gun (40), characterized in that the test gun is mounted externally on the plug unit (20) for tightness testing.

10. A component for a controller (10) according to any one of claims 1 to 6, wherein the component is an actuator housing (3), a plug unit (20), a housing (13) of the controller, a plug housing (23), a mating plug (30), a plug seal (35) or a housing body (5) combining an actuator housing and a controller housing.