CN217331511U

CN217331511U - Connector sealing performance test fixture and test system

Info

Publication number: CN217331511U
Application number: CN202220715376.0U
Authority: CN
Inventors: 冯素金; 崔军; 张磊
Original assignee: Bosch Automotive Products Suzhou Co Ltd
Current assignee: Bosch Automotive Products Suzhou Co Ltd
Priority date: 2022-03-30
Filing date: 2022-03-30
Publication date: 2022-08-30
Anticipated expiration: 2032-03-30

Abstract

The utility model discloses a connector sealing performance test fixture and test system. The sealing performance test fixture comprises: the connector comprises a connecting unit and a connecting unit, wherein the connecting unit is provided with a connecting part and an adjusting part, the connecting part is used for being jointed with a connector to be tested, a cavity of the connector is inflated or exhausted during testing, and the adjusting part is connected with the connecting part and is used for adjusting the connector to at least one testing position for testing; and the force application unit is connected with the connector and is used for applying a preset acting force which tends to be disengaged from the connecting part to the connector at the testing position during testing so as to detect whether the air leakage or air intake of the cavity is caused at the moment through the joint between the connector and the connecting part. The utility model has the advantages of compact overall structure, low cost, easy operation, high test efficiency and the like.

Description

Connector sealing performance test fixture and test system

Technical Field

The utility model relates to a test equipment technical field especially relates to connector sealing performance test fixture and test system.

Background

Connectors, also commonly referred to as connectors, plugs and sockets, and the like, typically have male and female ends and are used by mating engagement to transmit electrical current, signals, messages, and the like. Many types of connectors have gained considerable popularity in industrial manufacturing, commercial environmental applications, and people's daily lives.

Whether the male and female ends of the connector have good performance characteristics (e.g., mechanical, electrical, environmental, etc.) is an important consideration for ensuring connector quality. For this reason, the prior art has provided many testing devices and means for performing corresponding performance detection and evaluation, but they still have defects or deficiencies in some aspects such as complicated testing devices, difficult operation, inefficient detection, difficulty in meeting the requirements of specific testing projects, and the like.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention provides a connector sealing performance testing jig and testing system, which solves or at least alleviates one or more of the above problems and other problems existing in the prior art.

First, according to an aspect of the present invention, it provides a connector sealing performance test fixture, including:

the connector comprises a connecting unit and an adjusting unit, wherein the connecting unit is provided with a connecting part and an adjusting part, the connecting part is used for being jointed with a connector to be tested, a cavity of the connector is inflated or exhausted during testing, and the adjusting part is connected with the connecting part and is used for adjusting the connector to at least one testing position for testing; and

and the force application unit is connected with the connector and is used for applying a preset acting force which tends to be disengaged from the connecting part to the connector at the testing position during testing so as to detect whether the air leakage or air intake of the cavity is caused at the moment through the joint between the connector and the connecting part.

In the connector sealing performance test fixture according to the utility model discloses an optionally, the adjustment portion includes first part, second part, first connecting piece and second connecting piece, first part is adorned admittedly in the test field, the second part passes through first connecting piece with first part links to each other and can be relative first part is rotatory in order with the connector adjustment extremely one of test position, and pass through the second connecting piece can with the second part for first part is fixed so that the connector just lies in this test position, connecting portion with second part fixed connection.

In the connector sealing performance test jig according to the present invention, optionally, the first member and the second member are each provided with a center hole and at least one positioning hole, the first connecting member passes through the respective center holes of the first member and the second member to connect them, and when the connector is adjusted to this test position, the second connecting member is detachably passed through the positioning hole of the first member and the positioning hole of the second member corresponding thereto at this time.

In the connector sealing performance test jig according to the present invention, optionally, the first connecting member is provided in a shaft structure having a collar, the first member and the second member are respectively disposed on both sides of the collar, and/or the second connecting member is provided in a split structure having a first portion and a second portion, the first portion is detachably inserted into the positioning hole of the first member, the second portion is detachably passed through the first portion and the positioning hole of the first member, and an end portion of the second portion is inserted into the positioning hole of the second member corresponding to the positioning hole of the first member at this time.

In the connector sealing performance test fixture according to the present invention, optionally, the adjusting portion further includes a third member, and the connecting portion passes through the third member and the second member fixedly connected to each other.

In the connector sealing performance test fixture according to the present invention, optionally, the third member is provided with a ring structure having a first mounting hole, and the connecting portion is provided with a flange having a second mounting hole, the connecting portion passes through the first mounting hole and the second mounting hole through a connecting member, and is connected to the third member and the second member.

In the jig for testing the sealing performance of the connector according to the present invention, optionally, the force application unit includes a support, a rotatable member, a positioning member, and a load member, the rotatable member is connected to the support and can rotate to at least one preset position relative to the support, and is fixed in place at the preset position by the positioning member, and the load member is connected to the connector via the rotatable member, and is configured to apply the acting force to the connector; or

The force application unit comprises a bracket, a rotatable member and a load member, wherein the rotatable member is provided with at least two matching parts, and the load member can be selectively connected with the connector through different matching parts to apply the acting force.

In the connector sealing performance test fixture according to the present invention, optionally, the bracket and the rotatable member are each provided with at least one positioning hole, and the positioning member is detachably passed through the positioning hole of the rotatable member and inserted into the positioning hole of the bracket, so that the rotatable member is fixed in place at the preset position; and/or the load member comprises one or more weights.

In the connector sealing performance test jig according to the present invention, optionally, the connector is a wire harness connector, the force application unit is arranged to apply the force at a preset angle with an axis direction of the connector after the connector is adjusted to one of the test positions, and the force application unit is held to apply the force at the preset angle with the axis direction of the connector after the connector is adjusted to the other test position.

Secondly, according to the utility model discloses an on the other hand, still provide a connector sealing performance test system, include:

the connector sealing performance testing jig according to any one of the above items;

the air supply source is hermetically connected with the cavity of the connector through a pipeline and used for inflating or exhausting the cavity during testing; and

a container filled with a liquid, the junction between the connector and the connection being at least partially immersed in the liquid under test.

The utility model has the advantages of the overall structure is compact, with low costs, easily operation and efficiency of software testing are high, through using this test fixture and test system, can make things convenient for very much and carry out the sealing performance test to the connector high-efficiently to verify or assess the connector performance through detecting, perhaps discover the problem that this connector probably exists, so that aim at optimization and improvement afterwards, and then promote the promotion of connector product performance.

Drawings

Fig. 1 is a schematic diagram of a structure of a connector sealing performance testing fixture according to an embodiment of the present invention.

Fig. 2 is a schematic diagram of the operation of a sealing performance test on one example of a connector.

Fig. 3 shows a schematic end view of the application of forces from eight different directions, one by one, respectively, towards the connector example shown in fig. 2.

Fig. 4 is a schematic structural diagram illustrating the connection unit in the assembled state in the embodiment of the jig for testing sealing performance of a connector shown in fig. 1.

Fig. 5 is a schematic diagram illustrating an exploded structure of a connection unit in the embodiment of the connector sealing performance test fixture shown in fig. 1.

Fig. 6 shows a schematic view of the first member, the second member and the second connector in the connection unit shown in fig. 4 in a test use.

The first component and the second connector of the structure of figure 6 are shown separately in figure 7.

Fig. 8 is a schematic view showing a structure of the second connector shown in fig. 5 in a combined state.

Fig. 9 is a schematic view showing a structure of the second connector shown in fig. 5 in a separated state.

Fig. 10 is a schematic structural diagram illustrating an example of the force applying unit in the embodiment of the connector sealing performance test fixture shown in fig. 1.

The stent of the structure of fig. 10 is shown in isolation in fig. 11.

Fig. 12 is a schematic structural diagram showing another example of the force application unit in the embodiment of the connector sealing performance test jig shown in fig. 1.

Detailed Description

Referring first to fig. 1, which schematically shows a component structure of an embodiment of a connector sealing performance testing jig according to the present invention, the connector sealing performance testing jig 100 may include two components, i.e., a connection unit 10 and a force application unit 20. As shown in fig. 1, by using the jig 100 for testing the sealing performance of the connector, the sealing performance of the connector 200 can be tested accordingly. In order to facilitate better understanding of the solution of the present invention, the working principle of the embodied sealing performance test for one connector example is exemplarily shown in conjunction with fig. 2 and 3.

As shown in fig. 2 and 3, the connector 200 is illustrated as a male connector with a wiring harness 201, since the wiring harness 201 may be subjected to pulling forces from different directions as the position of the connector 200 is changed during use, which may cause the connector 200 to be completely or partially disengaged from a mating female connector, which may be manifested as a failure or a reduction in the sealing performance therebetween. In fig. 2 it is shown that the connector 200 may be tested accordingly for its sealing performance by applying a force F to the connector 200 or its wiring harness 201. For example, as shown in fig. 3, the connector 200 may be respectively forced from eight different directions (i.e., 45 ° apart from each other) one by one along a circumference of 360 ° to sequentially detect the sealing performance of the connector 200 in the angular directions (i.e., different test positions). The specific magnitude, angular direction, etc. of the force F allows for setting according to actual test requirements, e.g. as shown in fig. 2, any suitable force, e.g. 30N, may be applied in a direction forming an angle of inclination a with the axial direction of the connector 200, the specific value of the angle of inclination a may be set according to test requirements, e.g. may optionally be selected in the range of 0 ° -45 °, 20 ° -60 °, 25 ° -85 °, etc., such as 20 °, 30 °, 45 °, 60 °, etc.

By way of example, in the connector sealing performance test fixture 100, the connection unit 10 may include a first component 11, a second component 12, a third component 13, a connection portion 14, a first connection member 15, and a second connection member 16, and fig. 4 and 5 show a general composition structure of the connection unit 10 in a combined state and a disassembled state, respectively. Wherein the first member 11 may be fixedly mounted at the test site, for example by being directly fixed to a countertop, and the second member 12 may be connected to the first member 11 by the first connecting member 15 such that the first member is rotatable relative to the second member, in such a manner that the connector 200 may be selectively adjusted to the test position required by the test item to be tested, for example to a corresponding position for carrying out any one of the eight test orientations shown in fig. 3.

More specifically, as an alternative, for example, as shown in fig. 5, a center hole 110 and one or more positioning holes 111 may be provided in the first member 11, while a center hole 120 and one or more positioning holes 121 may be provided in the second member 12. Regarding the specific number, arrangement position, size and the like of the

positioning holes

111 and 121, the design can be selected according to the test position requirements of the connector under different test requirements.

The first connector 15 may be coupled together by passing it through the central aperture 110 of the first member 11 and the central aperture 120 of the second member 12. For example, the first connecting member 15 may be alternatively configured as a shaft structure having a collar 151, and the first member 11 and the second member 12 may be respectively disposed on both sides of the collar 151. In this manner, the first and

second members

11, 12 may be advantageously separated by the collar 151 so as to avoid unnecessary interference therebetween when the second member 12 is rotationally manipulated relative to the first member 11.

After the relative positions of the second member 12 and the first member 11 are determined by the above-described adjustment operation, they can be positionally fixed using the second connecting member 16, for example, as shown in fig. 4, 6, and 7, by inserting the second connecting member 16 into the positioning hole 111 of the first member 11 and the positioning hole 121 of the second member 12 corresponding to the position of the positioning hole 111 at that time.

As an illustration, as shown in fig. 6 to 9, the second connector 16 may be alternatively configured to have a split structure, such as a first portion 161 and a second portion 162, so that the insertion or extraction operation can be more flexibly and conveniently performed. As for the first portion 161, it can be removably inserted into the positioning hole 111 of the first member 11 in use; the second part 162 is removably inserted through the first part 161 and the locating hole 111 of the first component 11 in use, and its end 160 is inserted into the locating hole 121 of the second component 12 which corresponds to the locating hole 111 at that time, so that the relative position between the second component 12 and the first component 11 is fixed.

Referring to fig. 4 and 5, the third member 13 may serve as an optional intermediate member for securing the connecting portion 14 to the second member 12 so that relative positional adjustment may be made with the second member 12. Alternatively, the third member 13 may be constructed in a ring structure, a plurality of mounting holes 133 may be provided on the ring, and a flange 141 having a mounting hole 142 may be optionally provided on the connecting portion 14, and then the connecting portion 14 is fixedly connected to the third member 13 and the second member 12 by means of a connecting member such as a screw, a bolt, or the like through the

mounting holes

133, 142 and the mounting hole 122 on the second member 12.

A corresponding plug 140 for engaging with the connector 200 to be tested is provided on the connection portion 14, and the connector 200 can be plug-engaged with the plug 140 at the time of testing. Thus, when the connector 200 needs to be adjusted to a desired testing position in the current testing project, the connector 200 can be adjusted to the testing position for subsequent testing by adjusting the relative position of the second member 12 and further driving the connecting portion 14 and the connector 200 combined therewith as described above, and the whole operation process is very convenient and efficient.

It will be appreciated that in the above example the first part 11, the second part 12, the first connector 15 and the second connector 16 act as adjustment means in the connection unit 10 for position adjustment of the connection portion 14 for adjusting the connector 200 into one or more test positions for testing. In practical applications, the connecting portion and the adjusting portion may be implemented with more possible structures as needed.

For example, in some embodiments, the third component 13 may be omitted and the connection 14 may be fixedly connected directly to the second component 1. For another example, the third component 13 may be constructed in an integral or split structure, for example, with two

semicircular rings

131 and 132, and the inner part of the circular rings may be provided with a step structure, so as to better perform positioning, limiting and other operations on the connecting portion 14. In addition, the connecting portion 14 may be not only a component specially designed for the connector to be tested for specific testing needs (for example, only a plug connector adapted to the connector to be tested is provided), but also a component actually used in actual product equipment, for example, the connecting portion 14 is exemplarily shown in fig. 4 and 5 to be provided with a pin 143 for connecting an external circuit board or the like. In addition, the connector may be provided with a cable and directly apply force to the cable during actual testing, or may be applied to other parts on the connector without the cable.

With continued reference to fig. 10, 11 and 12, the general structures of two different embodiments of the force application unit 20 in the connector sealing performance test fixture 100 shown in fig. 1 are schematically illustrated, wherein, for the sake of simplicity of drawing, for example, the load member 24, the connection cable 25 and the like are omitted, but they are illustrated in fig. 1.

The force application unit 20 is intended to apply a force F to the connector 200 during testing, so that the connector 200, which is now in the testing position, will have a tendency to disengage from the connection portion 14 after being subjected to the force. As mentioned above, by selecting and setting the corresponding force magnitude, force application angle direction, and different testing positions according to different testing requirements, the sealing performance of the connector 200 under the testing condition(s) can be detected, which is very beneficial for verifying the quality of the connector product, finding and optimizing the improved connector performance, and the like.

During testing, the cavity of the connector 200 may be inflated (or deflated) by means of a device such as an air pump. In this way, once the connector 200 is subjected to a force under a certain condition, due to the insufficient structural design, material selection, etc., when the connector cannot be continuously stressed and is completely or partially disengaged from the connecting portion 14, a phenomenon of air leakage (or air suction) occurs from the cavity of the connector 200, so that the sealing performance of the connector at this time can be tested. In order to facilitate observation and learning of the above-mentioned air leakage (or air suction) phenomenon, the connector 200 may be placed in a liquid container during a test, and it is possible to find out that the problem of the failure or the decrease of the sealing performance of the connector has occurred very intuitively and in time by whether or not air bubbles are formed in the liquid environment. Of course, in some embodiments, other methods such as coating a thin grease layer on the joint of the connector and the connecting part are adopted, for example, whether air bubbles appear in the grease layer or not is observed during the test, and whether the air leakage (or air suction) phenomenon exists or not can be observed more intuitively.

As an example of an embodiment, the force application unit 20 may include a bracket 21, a rotatable member 22, a positioning member 23, and a load member 24. Wherein the rotatable member 22 may be coupled to the frame 21 and it may be rotated relative to the frame 21 to one or more predetermined positions, such predetermined positions will correspond to force requirements for a connector sealing performance test, e.g. applying forces towards the connector under test based on different angular directions. After being adjusted to the preset position, the preset position can be fixed in place by the positioning member 23, and then a force can be applied thereto by the load member 24 (fig. 1) being connected to the connector 200 via the rotatable member 22, for example, the load member 24 can be connected to the connector 200 via a fitting portion 221 provided on the rotatable member 22, and the fitting portion 221 can optionally adopt a structure such as a cross beam, so that the direction, the magnitude, and the like of the applied force can be adjusted after the connection cable 25 connected to both the load member 24 and the connector 200 passes through the fitting portion 221. With respect to the load member 24, it may optionally be implemented with one or more weights, which may be conveniently used to apply the desired force to the connector or its wiring harness, the particular weight, shape configuration, material, etc. of the weight or weights being selected according to the testing requirements. In this context, the technical term "weight" is understood to cover any form of equivalent, such as a metal block, a wood block, a water storage bucket or other items.

For example, referring to fig. 10 and 11, one or more positioning holes 210 may be provided in the bracket 21, and one or more positioning holes 220 may be correspondingly provided in the rotatable member 22, and the predetermined position determined for applying a desired force to the connector to be tested may be adjusted by selecting the matching between the positioning holes 210 and 220. Then, the positioning member 23 (e.g., a pin, etc.) can be detachably inserted through the positioning hole 220 of the rotatable member 22 and into the positioning hole 210 of the bracket 21, thereby fixing the rotatable member 22 in place at the predetermined position.

Referring again to fig. 12, which shows an alternative embodiment for the force application unit 20, the force application unit 20 may include a bracket 21, a rotatable member 22 and a load member 24. As shown in the figure, two or more fitting parts 221 may be provided on the rotatable member 22 according to the test requirement, and these fitting parts 221 may optionally adopt a structure such as a cross beam, so that the connecting cable 25 connected with the load member 24 and the connector 200 can adjust the direction, the magnitude, etc. of the applied force by selecting one of the fitting parts 221, so as to apply the desired force to the connector, for example, when the connector 200 is adjusted to a certain test position, the force application unit 20 may apply the force to the connector or its wiring harness in a manner of forming a preset angle (see the inclination angle α mentioned above) with the axial direction of the connector 200, and when the connector 200 is continuously adjusted to another test position, the force application unit 20 can still make the force keep applying the force to the connector or its wiring harness in a manner of forming the preset angle mentioned above with the axial direction of the connector 200, this will facilitate a very simple and efficient test operation for the connector at two or more different test positions.

By adopting the modes, the adjustment and setting operation of the acting force can be conveniently and quickly carried out when the connector is tested, the testing time is saved, and the whole sealing testing process of the connector can be efficiently completed.

The utility model discloses the scheme still provides a connector sealing performance test system, and it can include according to the utility model discloses a connector sealing performance test fixture, fill have the container and the air supply of liquid (for example water etc.). Specifically, an air supply source (such as an air pump, an air tank, etc.) can be hermetically connected with the cavity of the connector to be tested through a pipeline, and the air supply source is used for inflating or evacuating the cavity during testing; in addition, the joint of the connector to be tested and the connecting part in the connector sealing performance test fixture is completely or partially immersed into the liquid in the container during testing, for example, when a certain test item only needs to test the sealing performance of the joint on one side, only the corresponding side part of the connector to be tested can be immersed into the liquid in the container.

Claims

1. A connector sealing performance test fixture (100) is characterized by comprising:

a connection unit (10) having a connection portion (14) and an adjustment portion, the connection portion (14) being used for being jointed with a connector (200) to be tested, a cavity of the connector (200) being inflated or deflated during testing, the adjustment portion being connected with the connection portion (14) and being used for adjusting the connector (200) to at least one testing position for testing; and

and the force application unit (20) is connected with the connector (200) and is used for applying a preset acting force which enables the connector (200) in the testing position to tend to be disengaged from the connecting part (14) when testing so as to detect whether the cavity is leaked or aerated through the joint between the connector and the connecting part.

2. The connector sealing performance testing jig (100) according to claim 1, wherein the adjusting portion comprises a first component (11), a second component (12), a first connecting piece (15) and a second connecting piece (16), the first component (11) is fixedly mounted at a testing site, the second component (12) is connected with the first component (11) through the first connecting piece (15) and can rotate relative to the first component (11) to adjust the connector (200) to one of the testing positions, and the second component (12) can be fixed relative to the first component (11) through the second connecting piece (16) to enable the connector (200) to be located at the testing position, and the connecting portion (14) is fixedly connected with the second component (12).

3. The connector sealing performance test fixture (100) according to claim 2, wherein the first component (11) and the second component (12) are each provided with a central hole (110; 120) and at least one positioning hole (111; 121), the first connecting piece (15) passes through the central holes (110; 120) of the first component (11) and the second component (12) to connect them, and the second connecting piece (16) is detachably passed through the positioning hole (111; 121) of the first component (11) and the corresponding positioning hole (111; 121) of the second component (12) when the connector (200) is adjusted to the test position.

4. The connector sealing performance testing jig (100) according to claim 3, the first connection (15) is provided as a shaft structure with a collar (151), the first part (11) and the second part (12) being arranged on both sides of the collar (151), respectively, and/or the second connector (16) is provided as a split structure having a first portion (161) and a second portion (162), the first portion (161) is detachably inserted into the positioning hole (111) of the first member (11), the second portion (162) is removably passed through the first portion (161) and the positioning hole (111) of the first part (11), and the end of the second portion (162) is inserted into the positioning hole (121) of the second part (12) which corresponds to the positioning hole (111) of the first part (11) at that time.

5. The connector sealing performance test fixture (100) according to claim 2, wherein the adjusting portion further comprises a third member (13), and the connecting portion (14) is fixedly connected with the second member (12) through the third member (13).

6. The connector sealing performance test fixture (100) according to claim 5, wherein the third component (13) is provided in a ring structure having a first mounting hole (133), and the connecting portion (14) is provided with a flange (141) having a second mounting hole (142), the connecting portion (14) being connected with the third component (13) and the second component (12) by a connector passing through the first mounting hole (133) and the second mounting hole (142).

7. The connector sealing performance testing jig (100) according to claim 1, wherein the force application unit (20) comprises a bracket (21), a rotatable member (22), a positioning member (23) and a load member (24), the rotatable member (22) is connected with the bracket (21) and can rotate to at least one preset position relative to the bracket (21) and is fixed in position at the preset position by the positioning member (23), and the load member (24) is connected with the connector (200) through the rotatable member (22) and is used for applying the acting force to the connector (200); or

The force application unit (20) comprises a bracket (21), a rotatable piece (22) and a load part (24), wherein the rotatable piece (22) is provided with at least two matching parts (221) for enabling the load part (24) to be selectively connected with the connector (200) through different matching parts (221) to apply the acting force.

8. The connector sealing performance test fixture (100) according to claim 7, wherein the bracket (21) and the rotatable member (22) are each provided with at least one positioning hole (210; 220), and the positioning member (23) is detachably inserted through the positioning hole (220) of the rotatable member (22) and into the positioning hole (210) of the bracket (21) so that the rotatable member (22) is fixed in position at the preset position; and/or the load member (24) comprises one or more weights.

9. The connector sealing performance test jig (100) according to any one of claims 1 to 8, wherein the connector (200) is a wire harness connector, the force application unit (20) is arranged to apply the force at a preset angle to an axial direction of the connector (200) after the connector (200) is adjusted to one of the test positions, and the force application unit (20) is held to apply the force at the preset angle to the axial direction of the connector (200) after the connector (200) is adjusted to the other test position.

10. A connector sealing performance testing system, comprising:

the connector sealing performance testing fixture (100) of any one of claims 1-9;

the air supply source is hermetically connected with the cavity of the connector (200) through a pipeline and used for inflating or evacuating the cavity during testing; and

a container filled with a liquid in which the junction between the connector (200) and the connection (14) is at least partially immersed under test.