Device for adapting a test device to a test object

Abstract

The invention relates to a device (1) for adapting a test device (3) to a test object, characterized by an accumulation chamber (20), a sealing chamber (10) which is mounted so as to be axially movable relative to the accumulation chamber (20), a centering bolt (100) which is inserted or can be inserted centrally into the sealing chamber (10) and extends through it, and has a through-bore (103) and a quick-release fastener (105), and an adjustable hollow screw (40) inserted from a rear side of the sealing chamber (10), on or in which the centering bolt (100) is spring-mounted.

Description

[0001] The invention relates to a device for adapting a test device to a test object.

[0002] From DE 10 2023 003 460 B3, for example, a test method is known which serves to determine the tightness of a pressure vessel, wherein a first test medium is filled into an interior of the pressure vessel and the interior is then closed by an inner seal, wherein an intermediate space formed outside the inner seal in the pressure vessel is filled with a second test medium which is different from the first test medium and the intermediate space is then closed to the environment by an outer seal, wherein by means of at least one test probe arranged in the environment it is detected whether the first and / or the second test medium is escaping.

[0003] The invention is based on the object of providing an improved device for adapting a test device to a test object.

[0004] The object is achieved according to the invention by a device for adapting a test device to a test object having the features of claim 1.

[0005] Advantageous embodiments of the invention are the subject of the subclaims.

[0006] The device according to the invention for adapting a test device to a test object is characterized by an accumulation chamber, a sealing chamber which is mounted so as to be axially movable relative to the accumulation chamber, a centering bolt which is inserted or can be inserted centrally into the sealing chamber and extends through it, wherein the centering bolt has a through-bore and a quick-release fastener, and a hollow screw inserted from a rear side of the sealing chamber, on or in which the centering bolt is spring-loaded.

[0007] In particular, the sealing chamber is mounted so that it can move axially between the accumulation chamber and the test object.

[0008] The test object is in particular a high-voltage battery of a vehicle.

[0009] Additionally, the centering pin can be provided with a closable fluid channel for a test medium. The fluid channel can be formed, for example, by a through-hole in the hollow screw and a hose leading through this hollow screw. The test medium is preferably a gas, in particular helium.

[0010] The fluid channel is used in particular for filling and / or emptying the test object.

[0011] Furthermore, the sealing chamber can be mounted axially movable on the accumulation chamber via a spring arrangement.

[0012] In a further development of the invention, the device has a modular design, with the accumulation chamber, the sealing chamber, and the centering bolt being pre-assembled into a single assembly unit. The device is composed, in particular, of several individual parts and can be variably assembled and disassembled using threads.

[0013] An advantage of the device according to the invention is that modification, conversion, and / or additional devices are not necessary to enable different applications of the device. These applications include, in particular, filling, emptying, and / or checking the test object.

[0014] A further advantage is the cost-effective construction of the device due to easily accessible individual components which can be combined to form the device according to the invention, so that conversion of the device for different applications can be avoided.

[0015] An additional advantage is the compact design of the device according to the invention due to a centering bolt, which enables filling and / or emptying of the test object and thus reduces the necessary installation space.

[0016] Furthermore, the accumulation chamber and the sealing chamber can be provided with at least one sealing element on the front side. The test object can preferably be sealed airtight and particularly preferably helium-tight.

[0017] In particular, the accumulation chamber has at least one through-opening to check the test object for leaks.

[0018] Embodiments of the invention are explained in more detail below with reference to drawings.

[0019] Showing: Fig. 1 schematically shows in section a device for adapting a test device to a test object, and Fig. 2 schematically shows a tolerance-related compressed device in contact with a test object.

[0020] Corresponding parts are provided with the same reference numerals in all figures.

[0021] In Fig. 1 is a schematic illustration of an exemplary device 1 according to the invention for adapting a test device 3 to a test object 5 (shown in Fig. 2) shown in cross-sectional view.

[0022] In the following description, a side of the device 1 facing the test object 5 and oriented in its direction is referred to as the front side. The opposite side is referred to as the back side.

[0023] The device 1 for adapting a test device 3 to a test object 5, in particular a high-voltage battery, comprises a sealing chamber 10 (also called a sealing unit) and an accumulation chamber 20 (also called an accumulation unit). The accumulation chamber 20 can additionally be designed to be continuous and is configured to accommodate the sealing chamber 10. The sealing chamber 10 can have a passage 15.

[0024] The sealing chamber 10 is mounted axially movably, in particular, on the accumulation chamber 20 according to arrow 110 and can additionally be mounted in a self-resetting manner. A centering pin 100 can be inserted centrally into the passage 15 of the sealing chamber 10 and extend through it. Additionally, the centering pin 100 can have a through-bore 103 and a quick-release fastener 105. The device 1 further comprises an adjustable hollow screw 40, which is inserted from a rear side of the sealing chamber 10, on or in which the centering pin 100 is mounted. The centering pin 100 is spring-loaded, in particular, by a spring 107 and mounted axially movably according to arrow 110.

[0025] The sealing chamber 10 is mounted for axial movement, in particular between the accumulation chamber 20 and the test object 5. The sealing chamber 10 comprises at least one sealing element 11. The sealing chamber 10 is configured to seal the test object 5 by means of the at least one sealing element 11 and to close it preferably airtight, particularly preferably helium-tight, to prevent the test medium from escaping. The accumulation chamber 20 is provided with at least one further sealing element 11 to close the test object 5 airtight or gas-tight, for example, helium-tight.

[0026] Furthermore, the sealing chamber 10 can have a passage 15 in the axial direction, which in particular forms a circular-cylindrical cavity. Furthermore, the passage 15 can be arranged centrally and centrally, with the function of centrally receiving the centering pin 100 extending through the sealing chamber 10.

[0027] The accumulation chamber 20 has a recess 23 on a side of the accumulation chamber 20 facing the test object and a through-opening 21, and is configured to positively accommodate the sealing chamber 10 in the recess 23. The sealing chamber 10 is mounted for axial movement, in particular by a spring arrangement 13, between the accumulation chamber 20 and the test object 5.

[0028] The spring arrangement 13, for example a compression spring, is arranged in the recess 23 between the accumulation chamber 20 and the sealing chamber 10.

[0029] The centering pin 100 comprises a blind hole 101, the through-bore 103, and the quick-release fastener 105 and can be inserted from the rear of the device 1 into the passage 15 of the sealing chamber 10. The centering pin 100 has a hollow body 109 on the rear side, for example a circular-cylindrical hollow body 109, wherein the hollow body 109 can end with the blind hole 101. When inserted, the centering pin 100 protrudes from the front side of the sealing chamber 10 and forms a central projection 102 in the axial direction on the front side of the sealing chamber 10. In addition, the centering pin 100 can have the radially extending through-bore 103, which can be formed in the projection 102 of the centering pin 100 and extends outwards from the hollow body 109, shortly before it ends in the blind hole 101. The through hole 103 runs in particular radially and / or obliquely outwards from the blind hole 101 and forms an outlet.

[0030] The quick-release fastener 105 can be formed on the rear side of the centering bolt 100 and is, in particular, screwed into the centering bolt 100 with a thread. In addition, the quick-release fastener 105 can be connected to the centering bolt 100 in a manner that allows it to be assembled and disassembled. The quick-release fastener 105 is designed, for example, to be pneumatic, for example, as an air coupling or as a pneumatic air shut-off valve.

[0031] Furthermore, a spring 107 may be provided, which is configured to movably mount the centering pin 100 in the axial direction according to arrow 110. The spring 107 is inserted in particular in the passage 15 of the sealing chamber 10 behind the centering pin 100.

[0032] In addition, the device 1 comprises at least one hollow screw 30, preferably a hollow screw 30 and a further, adjustable hollow screw 40. The adjustable hollow screw 40 can be mounted, in particular, on the rear side in the passage 15 of the sealing chamber 10 behind the spring 107. The adjustable hollow screw 40 is, in particular, screwed into the passage 15 of the sealing chamber 10 and has an external thread. For this purpose, the sealing chamber 10 has an internal thread on the rear side in the passage 15.

[0033] The hollow screw 30 can, for example, be inserted into the adjustable hollow screw 40 and, in particular, screwed in. The adjustable hollow screw 40 has an internal thread 41 on the rear side, and the hollow screw 30 has an external thread 31. A lock nut 35 and a locking ring 37 can be provided on the hollow screw 30. The lock nut 35 is, in particular, designed to fix the locking ring 37 in a predetermined position, which acts as a securing element and prevents the sealing chamber 10 from sliding out of the recess 23 of the accumulation chamber 20.

[0034] The accumulation chamber 20 has, in particular, a hollow through-opening behind the recess 23, which is configured to accommodate the hollow screw 30. The accumulation chamber 20 can additionally enclose the hollow screw 30. The test device 3 is held in a form-fitting manner by means of the locking ring 37 on the hollow screw 30.

[0035] The at least one hollow screw 30, together with the hollow body 109 of the centering bolt 100, forms a fluid channel 33 for a test medium in the axial direction.

[0036] The fluid channel 33 can also be sealed airtight, preferably helium-tight, by the quick-release fastener 105. The fluid channel 33 serves primarily for filling and / or emptying the test object 5 with a test medium. The test medium is in particular a gas, preferably helium. Additionally, a hose can be provided that extends through the fluid channel 33 to seal it airtight, preferably helium-tight.

[0037] The device 1 (also called test device) also enables a leak test of the test object 5. The test medium is filled into the test object 5 and then tested for leaks within the accumulation chamber 20 through the through opening 21, wherein at least one test probe arranged in the environment detects whether the test medium leaks out.

[0038] In Fig. Figure 2 schematically shows the device 1, with the spring assembly 13 and the spring 107 compressing due to tolerances when the test object 5 is applied. Filling and / or emptying of the test object 5 is possible through the fluid channel 33.

[0039] In addition, a leak test can be carried out with the test object, whereby a test medium is filled into the test object 5 through the fluid channel 33.

[0040] In this state, the spring-loaded centering pin 100 rests against the adjustable hollow screw 40 mounted behind the centering pin 100, with the spring 107 being compressible or being compressed depending on the tolerances. Sealing elements 11 on the centering pin 100 ensure an airtight and preferably helium-tight seal. Furthermore, the spring arrangement 13 can be compressed or be compressed depending on the tolerances, whereby the sealing chamber 10 rests against the accumulation chamber 20. List of reference symbols 1 device 3 Test device 10 Sealing chamber 11 Sealing element 13 Spring arrangement 15th round 20 Accumulation chamber 21 Passage opening 23 Recess 30 hollow screw 31 external thread 33 Fluid channel 35 Lock nut 37 Locking ring 40 adjustable hollow screw 41 internal thread 100 centering bolts 101 blind hole 102 lead 103 Through hole 105 quick release 107 spring 109 hollow bodies 110 Arrow QUOTES CONTAINED IN THE DESCRIPTION

[0000] This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions. Cited patent literature

[0000] DE 10 2023 003 460 B3

[0002]

Claims

[1] Device (1) for adapting a test device (3) to a test object, characterized by , - an accumulation chamber (20), - a sealing chamber (10) which is mounted axially movable relative to the accumulation chamber (20), - a centering bolt (100) which is inserted or can be inserted centrally into the sealing chamber (10) and extends through it and has a through-bore (103) and a quick-release fastener (105), and - an adjustable hollow screw (40) inserted from a rear side of the sealing chamber (10), on or in which the centering bolt (100) is spring-loaded. [2] Device (1) according to claim 1, characterized by that the sealing chamber (10) is mounted axially movable between the accumulation chamber (20) and the test object. [3] Device (1) according to claim 1 or 2, characterized by that the centering bolt (100) has a closable fluid channel (33) for a test medium. [4] Device (1) according to one of the preceding claims, characterized by that the sealing chamber (10) is mounted axially movably on the accumulation chamber (20) via a spring arrangement (13). [5] Device (1) according to one of the preceding claims, characterized by a modular structure, wherein the accumulation chamber (20), the sealing chamber (10) and the centering bolt (100) can be pre-assembled to form an assembly unit. [6] Device (1) according to one of the preceding claims, characterized by that the accumulation chamber (20) and the sealing chamber (10) are provided with at least one sealing element (11) on the front side. [7] Device (1) according to one of the preceding claims, characterized by that the accumulation chamber (20) has at least one through opening (21).

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