JP4948434B2 - Water stop inspection device and water stop inspection method - Google Patents

Description

  The present invention relates to a water stoppage inspection of a wire harness with a grommet in which a grommet is attached to a bundle-like electric wiring drawn into a room from an engine room or the outside of a vehicle.

  For example, a partition wall provided on a partition wall between the engine room or the outside and the room when pulling in the electrical wiring (hereinafter referred to as a wire harness) that bundles the covered electric wires into a room from the engine room or the outside of the car to the room The through hole is installed through the wire harness through a grommet mounted at a predetermined position. This prevents the wire harness from being damaged by friction with the peripheral edge of the through hole due to vibration during travel.

  In addition, the wire harness is inserted into the through-hole provided in the grommet and the grommet is attached to the wire harness, and a water-stopping agent is injected into the insertion portion to stop water between the covered electric wires and the inside of the insertion hole. Thereby, it is transmitted to the wire harness drawn into the room from the engine room or the outside of the vehicle, and liquid such as water is prevented from inadvertently entering the room.

  Until now, the inspection of the water stop performance of the insertion part of such a wire harness with grommet has been conducted by actually putting water into the grommet part and checking whether there is water leaking through the wire harness. However, with this inspection method, there is a risk that the contact portion of the electrical wiring will get wet because the wire harness with grommet before assembly is inspected. In this case, there is a possibility that the wire harness with grommet cannot be used by inspection. It was.

Then, the inspection method which detects the leak from the water stop part of the grommet of the pressurized air and test | inspects the water stop performance of the said insertion part is proposed (refer patent document 1).
In this inspection method, the wire portion protruding from the grommet of the wire harness with grommet is inserted into the cylindrical portion, the cylindrical portion is sealed, pressurized air is supplied to the cylindrical portion, and the pressure of the cylindrical portion is The leakage of pressurized air from the water stop portion is detected by the amount of air supplied in a state where the air pressure is steady.

  Specifically, when the water-stop portion of the grommet has a certain water-stop performance, air does not leak out in a state where the pressure of the cylindrical portion is steady, and therefore supplying pressurized air any more However, if the water stop performance of the grommet water stop is low, the air in the tubular part leaks through the water stop and the supply of pressurized air to maintain the steady state of the air in the tubular part Is required. Therefore, the water stop performance of the water stop portion of the grommet can be inspected by detecting the amount of pressurized air supplied when the steady state of the cylindrical portion is maintained.

  However, in the above inspection method, since the supply amount of pressurized air when the steady state of the cylindrical portion is maintained is detected, the water stoppage of the water stop portion of the grommet is not directly inspected. In some cases, pressurized air passes through the inside of the covered electric wire, and it is impossible to clearly determine whether the leaked portion of the pressurized air in the cylindrical portion is a water stop portion of the grommet.

JP 2001-65693 A

  The present invention provides a grommet-equipped wire harness in which a grommet having a through hole allowing insertion of a bundled electric wire is attached to an intermediate portion in a longitudinal direction, and at least an insertion portion inside the through hole is subjected to water stop treatment. It aims at providing the water stop inspection apparatus which can test | inspect the water stop performance of an insertion part reliably, or the water stop inspection method.

The present invention provides a grommet-equipped wire harness in which a grommet having a through hole allowing insertion of a bundled electric wire is attached to an intermediate portion in a longitudinal direction, and at least an insertion portion inside the through hole is subjected to water stop treatment. A water stop inspection device for inspecting the water stop performance of an insertion part, comprising an insertion port at an end, and accommodating the bundled electric wire on one end side from the grommet of the wire harness with grommet inserted from the insertion port A bundled wire accommodating space that allows the grommet, a grommet fixing means for fixing the grommet arranged so as to close the insertion port at one end of the grommet, and other than the grommet fixed by the grommet fixing means Insertion that is attached to the outer periphery of the bundled electric wire on the end side in a sealed state and that surrounds the other end of the insertion portion of the grommet in a substantially sealed state A test gas supply means for supplying a test gas to the bundled wire housing space so that the air pressure in the bundled wire housing space is constant, and the bundled wire housing space. A pressure measuring means for measuring the pressure of the test gas, and provided with a test gas concentration measuring means for measuring a concentration of the test gas with respect to an atmosphere in the insertion other end portion accommodation space in the insertion other end portion accommodation space, The test gas supply means supplies the test gas based on the measurement result by the measurement means, and the test gas supplied into the bundled wire housing space is replaced with a replacement gas in the bundled wire housing space. The inspection gas replacement means is provided .

Also, the invention comprises the above-described water stop inspecting apparatus, and a test control unit for controlling the water stop test, to the test control unit, on the basis of the density measurement results of the test gas by the test gas concentration measuring means It is a water stop inspection system provided with the water stop performance determination means which determines the water stop performance of the said penetration part.

  As an aspect of the present invention, in the inspection control device, the identification information for specifying the grommet-equipped wire harness to be inspected and the determination result information by the water stop performance determining means of the grommet-equipped wire harness are stored in association with each other. Means may be provided.

Further, the present invention provides a grommet-equipped wire harness in which a grommet having a through hole allowing insertion of a bundled electric wire is attached to an intermediate portion in the longitudinal direction, and at least the insertion portion inside the through hole is subjected to water stop treatment. The water stop inspection device for inspecting the water stop performance of the insertion portion in the housing is provided with an insertion opening at an end, and the bundled electric wire on one end side from the grommet of the wire harness with grommet inserted from the insertion opening is received. A bundled wire accommodating space that allows the grommet, a grommet fixing means for fixing the grommet arranged so as to close the insertion port at one end of the grommet, and other than the grommet fixed by the grommet fixing means Insertion that is attached to the outer periphery of the bundled electric wire on the end side in a sealed state and that surrounds the other end of the insertion portion of the grommet in a substantially sealed state A test gas supply means for supplying a test gas to the bundled wire housing space so that the air pressure in the bundled wire housing space is constant, and the bundled wire housing space. A pressure measuring means for measuring the pressure of the test gas, and provided with a test gas concentration measuring means for measuring a concentration of the test gas with respect to an atmosphere in the insertion other end portion accommodation space in the insertion other end portion accommodation space, The inspection gas supply means supplies the inspection gas based on a measurement result by the measurement means, and includes the water stop inspection device and an inspection control device that controls the water stop inspection. In addition to the water stop performance determining means for determining the water stop performance of the insertion portion based on the measurement result of the test gas concentration by the test gas concentration measuring means, the knowledge for identifying the wire harness with grommet to be inspected And wherein the information and a water shut-off inspection system having a storage means for storing in association with the determination result information by the waterproofing performance determination means of the wire harness with the grommet.

Also, the present invention provides a grommet-equipped wire harness in which a grommet having a through hole that allows insertion of a bundled electric wire is attached to an intermediate portion in the longitudinal direction, and at least a water stop treatment is applied to the insertion portion of the bundled electric wire. A water stop inspection method for inspecting a water stop performance of the insertion portion, wherein the bundled electric wire on one end side from the grommet of the wire harness with grommet is provided in a bundled electric wire receiving space provided with an insertion port at an end. One-end bundled wire receiving step for receiving, a grommet fixing step for arranging and fixing the grommet so as to block the insertion port at one end of the grommet, and the grommet fixed in the grommet fixing step Is inserted in a sealed state with respect to the outer periphery of the bundled electric wire on the other end side, and the other end of the insertion portion in the grommet is enclosed in a substantially sealed state Inserting the other end space mounting step for mounting the end housing space, supplying the test gas so that the air pressure in the bundled wire housing space is constant, and measuring the pressure in the bundled wire housing space an inspection gas supply step of supplying the test gas based on the measurement result, and the test gas concentration measurement step of measuring the concentration of the test gas on the atmosphere of the insertion and the other end portion housing space, before Symbol test gas concentration measuring step A water stop performance determination step of determining the water stop performance of the insertion portion based on a concentration measurement result in the step , an identification information acquisition step of acquiring identification information for specifying the wire harness with grommet to be inspected, and the water stop It is characterized by comprising a determination result storage step for storing the determination result information in the performance determination step in association with each other.

Also, the present invention provides a grommet-equipped wire harness in which a grommet having a through hole that allows insertion of a bundled electric wire is attached to an intermediate portion in the longitudinal direction, and at least a water stop treatment is applied to the insertion portion of the bundled electric wire. A water stop inspection method for inspecting a water stop performance of the insertion portion, wherein the bundled electric wire on one end side from the grommet of the wire harness with grommet is provided in a bundled electric wire receiving space provided with an insertion port at an end. One-end bundled wire receiving step for receiving, a grommet fixing step for arranging and fixing the grommet so as to block the insertion port at one end of the grommet, and the grommet fixed in the grommet fixing step Is inserted in a sealed state with respect to the outer periphery of the bundled electric wire on the other end side, and the other end of the insertion portion in the grommet is enclosed in a substantially sealed state Inserting the other end space mounting step for mounting the end housing space, supplying the test gas so that the air pressure in the bundled wire housing space is constant, and measuring the pressure in the bundled wire housing space an inspection gas supply step of supplying the test gas based on the measurement result, and the test gas concentration measurement step of measuring the concentration of the test gas on the atmosphere of the insertion and the other end portion housing space, before Symbol test gas concentration measuring step Later, it is characterized by comprising a test gas replacement step of replacing the test gas supplied into the bundled wire housing space with a replacement gas .

Also, as an aspect of the invention, the can having an insertion portion of the water stopping performance determining waterproofing performance determination process on the basis of the density measurement results of the test gas concentration measurement process.

In addition, as an aspect of the present invention, a determination result storage for storing the identification information acquisition step for acquiring the identification information for specifying the grommet-attached wire harness to be inspected and the determination result information in the water stop performance determination step in association with each other. Process .

  In addition, the present invention forms a bundled electric wire by bundling a predetermined number of electric wires, inserts the bundled electric wire through an insertion hole provided in the grommet, and attaches the grommet at a predetermined position of the bundled electric wire, A method of manufacturing a wire harness with grommet, wherein the insertion portion of the bundled electric wire inserted through the insertion hole is water-stopped, and the wire harness with grommet in which the insertion portion is water-stopped is subjected to water stop inspection by the water stop inspection method. It is characterized by being.

In the above description, the bundled electric wire includes a wire harness in which a plurality of covered electric wires are bundled.
The water-stopping treatment includes a water-stopping treatment in which a water-stopping agent is injected into the insertion portion of the bundled electric wire that passes through the through hole provided in the grommet.

  The bundled electric wires on one end side from the grommet are arranged on the engine room side or on the vehicle side when installing the indoor side wire harness that is wired indoors when installing the wire harness with grommet on the vehicle or the wire harness with grommet on the vehicle. Including an outdoor wire harness that is wired outside.

  Covering the insertion port with the end portion on one end side of the grommet in a sealed state includes pressing the end portion on one end side of the grommet against the peripheral edge portion of the insertion port to form a sealed state.

  The other end of the insertion portion in the grommet is an end portion on the opposite side to the insertion port in the insertion portion of the bundled electric wire inserted in the through hole in the grommet, in other words, the insertion portion subjected to a water stop treatment. It includes that it is an end portion on the other end side opposite to the insertion port.

The atmosphere in the insertion other end accommodating space includes air and other gases that fill the insertion other end accommodating space, and a gas that is harmless to the inspection worker is more suitable.
The inspection gas may be a gas different from the atmosphere, and includes, for example, a gas slightly contained in the atmosphere such as helium when the atmosphere is air. Further, a gas that is harmless to the inspection worker is more suitable.

  The supply of the inspection gas by the inspection gas supply means based on the measurement result of the atmospheric pressure measurement means includes controlling the supply of the inspection gas so as to keep the atmospheric pressure in the bundled wire housing space constant.

The replacement gas includes a gas different from the inspection gas, and a gas that is harmless to the inspection operator is more suitable.
The inspection gas replacement means for replacing the inspection gas with the replacement gas is a replacement means for supplying the replacement gas and sending out the inspection gas at the supply pressure, or a replacement means for supplying the replacement gas after sucking out the inspection gas in advance. Including that.

The inspection control device includes a computer connected to the water stop inspection device so as to be able to transmit and receive data, or a computer integrated with the water stop inspection device.
The water stop performance determination means includes a determination program for determining by comparing a concentration value of the inspection gas measured by the inspection gas concentration measurement means with a preset reference value.

  The identification information is identification information uniquely set for each wire harness with grommets to be inspected or for each production lot, and is identification information stored in a QR code, an IC tag, or the like provided in the wire harness with grommets. Including that.

  According to the present invention, a grommet-equipped wire harness in which a grommet having a through hole allowing insertion of a bundled electric wire is attached to a middle portion in the longitudinal direction, and at least the insertion portion inside the through hole is subjected to water stop treatment. The water stop performance of the insertion part in can be reliably inspected.

  The water stop inspection system 1 is equipped with a grommet 120 having a through-hole 124 that allows insertion of a wire harness 110 (hereinafter referred to as W / H 110) in which the covered electric wires 111 are bundled into a bundle in the longitudinal direction. In the wire harness with grommet 100 (hereinafter referred to as W / H100 with grommet) in which the insertion portion 112 through which the through hole 124 is inserted has been subjected to a water stop treatment (hereinafter referred to as W / H100 with a grommet), It is a water stop inspection system provided with the water stop inspection apparatus 10 which inspects the water stop performance, and the inspection control terminal 60 which controls the water stop inspection.

  FIG. 1 is a configuration diagram for explaining the system configuration of the water stop inspection system 1, FIG. 2 is a perspective view of the water stop inspection device 10, a longitudinal sectional view of the water stop inspection device 10, and FIG. The exploded perspective view of the water test | inspection apparatus 10 is shown, and FIG. 5 has shown the perspective view of W / H100 with a grommet.

  In this embodiment, the W / H 110 on one end side from the grommet 120 in the W / H 100 with grommet (left side of the grommet 120 in FIG. 3) is arranged on the indoor side of the vehicle on which the W / H 100 with grommet is mounted. W / H 110b, and W / H 110 on the other end side from grommet 120 (on the right side of grommet 120 in FIG. 3) is arranged on the outdoor side of an engine room or the like of a vehicle equipped with W / H 100 with grommet. It is said.

The water stop inspection device 10 includes a main chamber 20, a sub chamber 40, and a fixed clamp 30 that fixes the sub chamber 40 to the main chamber 20.
The main chamber 20 includes an insertion port 21 at the end, and allows the outdoor side W / H 110b inserted from the insertion port 21 to be accommodated.
The fixing clamp 30 sandwiches and fixes the grommet 120 disposed so as to cover the insertion port 21 in a sealed state with the end face 120a on the outdoor side W / H 110b side of the grommet 120 between the insertion side flange 24a and the fixing flange 41.

  The sub-chamber 40 surrounds at least a substantially hermetically sealed end portion on the indoor side W / H 110a side of the water stop treatment portion 125 in the grommet 120 fixed by the fixing clamp 30.

  Further, the main chamber 20 is provided with a gas valve 22 for supplying He gas 200 so that the atmospheric pressure inside the main chamber 20a is constant, and the sub chamber 40 has an atmosphere of the sub chamber space 42a, that is, the sub chamber space 42a. A concentration measuring probe 50 for measuring the concentration of the He gas 200 with respect to the air 300 to be filled is provided.

  The gas valve 22 supplies the He gas 200 based on the measurement result by the barometer 23 that measures the barometric pressure of the main chamber interior 20a provided in the main chamber 20.

  The inspection control terminal 60 includes a water stop performance determination program that determines the water stop performance of the water stop processing unit 125 based on the concentration measurement result of the He gas 200 by the concentration measurement probe 50.

  Further, the inspection control terminal 60 includes a storage device 64 that stores the QR code that identifies the W / H 100 with grommet to be inspected and the determination result information by the water stoppage performance determination program for the W / H 100 with grommet in association with each other. ing.

The configuration of the water stop inspection system 1 described above will be described in detail below.
The W / H 100 with grommet is configured by attaching a grommet 120 to an intermediate portion in the longitudinal direction that becomes a boundary between the outdoor side W / H 110b and the indoor side W / H 110a in the W / H 110 in which the covered electric wires 111 are bundled. is doing.

  The grommet 120 is made of rubber having appropriate elasticity, and the peripheral end 121, the inverted truncated cone 122 and the cylindrical part 123 are integrated in this order from the outdoor side W / H 110b side, and the center in a side view Are provided with through holes 124 that allow the W / H 110 to pass therethrough. The W / H 110 is inserted into the through hole 124, and the grommet 120 is attached to a predetermined location of the W / H 110.

And the water stop processing part 125 is formed by injecting a water stop agent (not shown) into the insertion part 112 of the W / H 110 that passes through the through hole 124. More specifically, the water-stop treatment section 125 ensures water-stopping by filling a water-stopping agent between the bundled covered electric wires 111 and between the covered electric wires 111 and the inner peripheral surface of the through hole 124. .
In addition, the water stop test | inspection by the water stop test | inspection system 1 using the water stop test | inspection apparatus 10 test | inspects the water stop of this water stop process part 125. FIG.

The main chamber 20 constituting the water stoppage inspection apparatus 10 has a hollow and inverted cylindrical shape with flanges 24 (24 a, 24 b) at both ends, and includes legs 25.
The insertion side flange 21 allowing the penetration of the outdoor side W / H 110b is provided at the center of the insertion side flange 24a on one side (left side in FIG. 3) of the circular flange 24 in side view, and the other side (right side in FIG. 3). The sealing flange 24b is provided with a gas valve 22. As shown in FIG. 1, the gas valve 22 is connected by a gas hose 202 to a He gas cylinder 201 in which a He gas 200 that is a test gas is sealed.

  Further, in the four oblique directions of the side surface of the insertion side flange 24a, there is provided a locking buckle 31 that locks with a locking hook 32 provided in the sub-chamber 40 to be described later. A fixed clamp 30 is configured.

  The sub-chamber 40 is octagonal when viewed from the side of the main chamber 20 and has a fixing flange 41 provided with locking hooks 32 in four oblique directions on the side surface, and a cylindrical portion 123 of the grommet 120 formed by a sub-chamber space 42a formed inside. Side-view circular sub-chamber main body 42 that can be enclosed, and passage of the indoor side W / H 110a in a sealed state, and an inverted cylindrical chamber that fixes the indoor side W / H 110a protruding from the grommet 120 is fixed. The inner W / H fixing portion 43 is integrally configured in this order.

The sub-chamber 40 is configured to be vertically divided into two vertically by divided blocks 40a that are substantially symmetrical up and down, and the sealing performance in the sub-chamber 40 in a state where the upper and lower blocks are fitted to each opposing surface. The rubber packing 40b for securing is provided.
In addition, a locking portion 44 is provided to fix the upper and lower divided blocks 40a to the fixing flange 41 on the side of the sub chamber main body 42 in a fitted state.

The upper peripheral surface of the sub-chamber body 42 is provided with a probe attachment portion 45 that allows the concentration measurement probe 50 to be attached to the sub-chamber space 42a.
Further, on the inner periphery of the indoor side W / H fixing portion 43, a rubber packing 43a made of rubber having a circular ring shape in side view following the outer peripheral shape of the bundle-like W / H 110 is mounted.

  Thereby, the indoor side W / H 110a can be attached to the indoor side W / H fixing portion 43 in a sealed state. Therefore, the indoor side W / W of the water stop treatment part 125 including the indoor side W / H side end part of the through hole 124 at the peripheral end part 121 of the grommet 120 and the rubber packing 43a of the indoor side W / H fixing part 43. The H-side portion can be sealed with the sub-chamber space 42a.

  The concentration measurement probe 50 is a probe for measuring the concentration of the He gas 200 in the sub-chamber space 42a, and is electrically connected to the inspection control terminal 60 so that the measurement result of the concentration measurement probe 50 can be received by the inspection control terminal 60. It is.

  The inspection control terminal 60 is a computer, a control device 61 composed of a CPU, ROM and RAM, an operation device 62 which is an input device such as a mouse and a keyboard, an output display device 63 composed of a CRT or a liquid crystal screen, a hard disk, etc. Storage device 64, a storage medium reading device that reads various storage media such as DVD-RAM, or a QR code (not shown) read on a tag attached to a W / H 100 with a grommet. The code reader 65 and a rotation indicator lamp 66 that turns on the color corresponding to the determination result of the water stop inspection are provided.

  The storage device 64 controls and executes the operation device 62, the output display device 63, the QR code reader 65, the rotation indicator lamp 66, the concentration measurement probe 50, the barometer 23, and the gas valve 22 attached to the main chamber 20. A control program, an output program, a read / write program, an information registration program, a determination program for determining the water stoppage of the W / H 100 with grommet according to the measurement result of the concentration measurement probe 50, and the like.

  The revolving indicator lamp 66 is provided with a revolving lamp that is lit in red and blue from above, and is controlled by the inspection control terminal 60 so that a revolving light of a predetermined color is turned on based on the determination result by the determination program. Yes.

  With the water stop inspection system 1 configured as described above, the water stop of the water stop processing part 125 of the W / H 100 with grommet can be inspected. Specifically, when the water stoppage of the waterstop treatment unit 125 is low by attaching the W / H100 with grommet to the waterstop inspection apparatus 10 and supplying the He gas 200 to the inside 20a of the main chamber, the through hole 124 of the grommet 120 is provided. The He gas 200 passes through the inner water stop treatment part 125 and leaks into the subchamber space 42a.

  By measuring the concentration of the He gas 200 leaked into the sub-chamber space 42a, that is, the amount of the He gas 200 with respect to the air 300 filled in the sub-chamber space 42a, the water-stopping property of the quantitative water-stop treatment unit 125 is inspected. can do.

  Further, for example, even when the He gas 200 enters the inside of the wire covering constituting the covered wire 111, the He gas 200 does not permeate the wire covering itself, so that the outside of the main chamber inside 20a is the outdoor side. Since the He gas 200 that has entered the inside of the wire covering at the end of the W / H 110b passes through the inside of the wire covering of the W / H 110 and flows out from the other end of the indoor W / H 110a, The water stop test for measuring the He gas 200 passing through and leaking into the sub-chamber space 42a is not affected. Therefore, it is possible to inspect the water stoppage of the reliable water stop treatment unit 125.

  Further, since the He gas 200 having a low content in the atmosphere is used as the inspection gas, a quantitative and highly accurate water-stop test can be realized by measuring the amount of the He gas 200 with respect to the air 300. It should be noted that a harmless gas such as neon (Ne) or xenon (Xe) may be used as the inspection gas without using the He gas 200. The inspection gas has a low content in the atmosphere and is contained in the subchamber space 42a. What is necessary is just a harmless gas different from filling air, such as filled air.

  Further, the quantitative water stoppage of the water stop treatment unit 125 is inspected by measuring the amount of the He gas 200 with respect to the air 300 filled in the subchamber space 42a. For example, nitrogen (N ), Oxygen (O), or other air 300 and a gas different from the He gas 200 are filled, and the amount of the He gas 200 with respect to the filled gas is measured to determine the quantitative water stoppage of the water stop treatment unit 125. The structure to test | inspect may be sufficient.

  Further, in the above description, in order to inspect the water stoppage of the water stop processing unit 125 from the outdoor side W / H to the indoor side W / H direction, the outdoor side W / H 110b is accommodated and inspected in the main chamber interior 20a. The W / H 100 with grommet may be installed in the reverse direction, that is, the indoor W / H 110a may be accommodated in the main chamber interior 20a for inspection. Thereby, the water stop property of the water stop processing part 125 from the indoor side W / H to the outdoor side W / H direction can be inspected.

  Next, FIG. 6 which shows the flowchart of a water stop inspection method about the water stop inspection inspection method of W / H100 with a grommet using the water stop inspection system 1 mentioned above, of subchamber 40 to W / H100 with a grommet It will be described together with FIG. 7 showing an explanatory view for explaining the mounting.

First, as shown in FIG. 7, the cylindrical portion 123 of the grommet 120 of the W / H 100 with grommet is a sub-machine as a water stop inspection method for inspecting the water stop performance of the water stop treatment portion 125 of the grommet 120 of W / H 100 with grommet. At the position inside the chamber space 42a, the divided block 40a is fitted in such a manner that the indoor side W / H 110a is sandwiched from above and below by the indoor side W / H fixing portion 43, locked by the lock portion 44, and the subchamber 40 is grommets Attached to the attached W / H 100 (step s1).
At this time, since the rubber packing 40b is provided on the opposing surfaces of the divided blocks 40a, gas leakage between the divided blocks 40a is prevented.

  The outside W / H 110b of the W / H 100 with grommet fitted with the sub chamber 40 is inserted from the insertion port 21 of the main chamber 20 and accommodated in the main chamber interior 20a (step s2). It is installed and fixed in the chamber 20 (step s3).

  As shown in FIG. 3, the fixing clamp 30 is fixed by pulling the sub chamber 40 in a direction approaching the insertion side flange 24a, so that the peripheral end 121 of the grommet 120 is connected to the surface of the insertion side flange 24a. It is sandwiched between the back surface of the fixed flange 41 and fixed so as to be in close contact with the surface of the insertion side flange 24a.

  Accordingly, the insertion port 21 communicating with the main chamber interior 20a and the outdoor side W / H 110b are closed by the end face 120a of the grommet 120 and the water stop treatment portion 125, and the inside of the main chamber accommodating the outdoor side W / H 110b. 20a is in a sealed state.

  In this state, the concentration measuring probe 50 is attached to the probe mounting portion 45 in such a configuration that the tip of the concentration measuring probe 50 is inserted into the sub-chamber space 42a (step s4).

  As a result, the open surface of the sub chamber space 42a of the sub chamber 40 on the main chamber 20 side is also closed by the peripheral end 121 of the grommet 120. A sealed state is established by the sandwiched peripheral end portion 121.

  Therefore, both ends of the water stop treatment part 125 of the W / H 100 with grommet are located in the sealed main chamber interior 20a and the sub-chamber space 42a, respectively.

  In this way, after the W / H 100 with grommet is installed in the water stop inspection device 10, the QR code reader 65 of the inspection control terminal 60 is operated to attach the grommet that is the inspection target set in the water stop inspection device 10. The QR code including the identification information for identifying the W / H 100 is read, and the identification information included in the QR code is acquired based on the instruction on the operation screen displayed on the output display device 63 and input to the inspection control terminal 60 ( Step s5).

  When the operation device 62 is operated and the measurement start button displayed on the operation screen is pressed (step s6), the inspection control terminal 60 controls the opening of the gas valve 22 so that the He gas from the He gas cylinder 201 to the main chamber interior 20a. The supply of 200 is started (step s7).

  After the start of the supply of the He gas 200, the atmospheric pressure in the main chamber 20a is measured by the atmospheric pressure meter 23 installed in the main chamber 20a (step s8), and the atmospheric pressure in the main chamber 20a is the specified atmospheric pressure (in this embodiment). He gas 200 is supplied until it reaches 3 to 13 kPa) (step s9).

  When the atmospheric pressure inside the main chamber 20a reaches the specified atmospheric pressure (step s9: Yes), the concentration measuring probe 50 measures the concentration of the He gas 200 in the sub-chamber space 42a (step s10). More specifically, the concentration measuring probe 50 measures the amount of He gas 200 that is supplied until the atmospheric pressure inside the main chamber 20a reaches a specified atmospheric pressure, passes through the water stop processing unit 125, and leaks into the sub-chamber space 42a.

  The measurement of the He gas 200 in the sub-chamber space 42a is performed until a predetermined time (30 seconds in the present embodiment) elapses (step s11), and the atmospheric pressure in the main chamber interior 20a is also measured during that time (step s12). When the atmospheric pressure in the main chamber interior 20a drops below the specified atmospheric pressure (step s13: No), the gas valve 22 is controlled to supply the He gas 200 to the main chamber interior 20a (step s14).

  In this way, while supplying the He gas 200 so as to maintain the atmospheric pressure inside the main chamber 20a at the specified atmospheric pressure, the amount of the He gas 200 inside the sub-chamber space 42a is measured until a predetermined time elapses, and the predetermined time elapses. Then (step s11: Yes), the measurement of the He gas 200 in the sub-chamber space 42a by the concentration measurement probe 50 is terminated (step s15).

  The inspection control terminal 60 compares the measurement result of the He gas 200 in the sub-chamber space 42a by the concentration measurement probe 50 with a preset reference value (30 ppm or more in the present embodiment) by the water stop performance determination program, When it is below the reference value (step s16: No), “pass” is displayed on the operation screen output and displayed on the output display device 63, and the rotation indicator 66 is lit in blue (step s17).

  On the other hand, when the value is equal to or greater than the reference value (step s16: Yes), “NG” is displayed on the operation screen output and displayed on the output display device 63, and the rotation indicator 66 is lit in red (step s18). These determination results are registered in association with the identification information acquired in step s5 (step s19), and the water stop inspection of the W / H 100 with grommet using the water stop inspection system 1 is completed.

  As described above, the main chamber interior 20a and the subchamber space 42a, which are sealed spaces, are formed on both sides of the water stop treatment unit 125 by the inspection method using the water stop inspection system 1, and the He gas in the main chamber interior 20a is formed. In this state, the He gas 200 leaking into the sub-chamber space 42a is measured for a predetermined time, and the water stoppage of the water stop treatment unit 125 of the W / H100 with grommet can be inspected.

  In addition, the water stop test result of the water stop processing unit 125 is displayed on the output display device 63 so that it can be visually confirmed, and can be notified to the surroundings by the rotation indicator lamp 66, and the W / H 100 with each grommet is stored in the storage device 64. The determination result can be registered in association with the identification information for specifying the ID. Therefore, it can prevent using W / H100 with a grommet determined to be NG as having passed.

  In addition, the water stop test | inspection of the water stop process part 125 using the water stop test | inspection system 1 mentioned above can be included in the manufacturing process of W / H100 with a grommet. Specifically, a predetermined number of covered electric wires 111 are bundled to form a W / H 110, the W / H 110 is inserted into a through-hole 124 provided in the grommet 120, and the grommet 120 is attached to the predetermined position of the W / H 110 to penetrate. A water-stopping agent is injected into the insertion portion 112 of the W / H 110 that passes through the hole 124 to form a water-stop treatment portion 125, and the water-stop treatment portion 125 of the W / H 100 with grommet is water-stopped by the water-stop inspection method. It is to be inspected.

  Thus, in the manufacturing process of a series of W / H100 with grommets, W with grommets that secures a certain water stoppage by incorporating the waterstop test of the water stop processing unit 125 using the water stop test system 1 described above. / H100 can be manufactured, and highly reliable W / H100 with grommet can be manufactured.

  Further, as shown in FIG. 8, after the inspection of the He gas 200 supplied to the main chamber interior 20a is completed, an air injection valve 310 that is an inspection gas replacement unit that replaces the air 300 that is a replacement gas, and a He exhaust valve 320 are provided. The water stop inspection device 10 may be provided.

  The air injection valve 310 is an injection valve that injects air 300 into the main chamber interior 20a, and the He exhaust valve 320 pushes out the He gas 200 supplied into the main chamber interior 20a by the air 300 injected from the air injection valve 310. It is a discharge valve. In addition, FIG. 8 shows the side view of the water stop test | inspection apparatus 10 provided with the substitution means.

  By providing the air injection valve 310 and the He exhaust valve 320, the He exhaust valve 320 is opened and the air 300 is injected from the air injection valve 310 after the determination result is registered in step s19. Then, the W / H 100 with grommet is taken out from the main chamber 20 together with the sub chamber 40.

  At this time, the sealed main chamber interior 20a is opened, but since the interior of the main chamber interior 20a is replaced with air 300, the He gas 200, which is the inspection gas, is released into the atmosphere at a high concentration. Can be prevented.

  Therefore, it is possible to prevent the risk of inhaling the high-concentration He gas 200 by an inspector who performs the water stop inspection, and the water stop inspection of the W / H 100 with grommet can be performed safely.

  Moreover, as shown in FIG. 9 which is a longitudinal cross-sectional view of the still water inspection apparatus 10 of another embodiment, the fixing flange 41 and the sub-chamber main body 42 constituting the sub-chamber 40 may be formed separately. In this case, the peripheral end portion 121 and the truncated cone portion 122 of the grommet 120 are fixed by separate fixing flanges 41 so as to cover the insertion port 21 of the main chamber 20 in a sealed state, and the chamber of the water stop processing portion 125 is fixed. An end portion on the inner W / H 110a side is enclosed in a sealed state by a sub-chamber main body 42 configured separately.

  As shown in FIG. 9, the indoor side W / H fixing portion 43 of the sub-chamber main body 42 that allows passage of the indoor side W / H 110 a and the cylindrical portion 123 on the fixing flange 41 side of the sub-chamber main body 42 are allowed to pass. Each of the permitted cylindrical part passage holes 46 is provided with a rubber packing 43a.

  Thereby, even if it is the grommet 120 from which the length of the cylindrical part 123 differs, without providing the subchamber 40 according to the length of the cylindrical part 123, the water stop test | inspection apparatus 10 which can implement a reliable water stop test | inspection Can be configured.

  Specifically, the fixing flange 41 and the sub-chamber main body 42 of the sub-chamber 40 are separately configured, so that the grommet 120 having the cylindrical portion 123 of any length can be fixed to the peripheral end portion 121 and the fixing flange 41. The truncated cone portion 122 is fixed, and the end portion on the indoor side W / H 110a side of the water stop treatment portion 125 can be enclosed in a sealed state by the sub-chamber main body 42. Therefore, the He gas 200 that passes through the water stop treatment unit 125 and leaks from the end of the through-hole 124 can be reliably measured, can be handled regardless of the shape of the grommet 120, and is highly convenient. 10 can be configured.

In correspondence between the configuration of the present invention and the above-described embodiment,
The bundled electric wire of this invention corresponds to W / H110,
Similarly,
The insertion portion subjected to the water stop treatment corresponds to the insertion portion 112 and the water stop treatment portion 125,
The bundled wire accommodating space corresponds to the main chamber 20,
The grommet fixing means corresponds to a fixing clamp 30 that sandwiches and fixes the grommet 120 arranged so as to cover the insertion port 21 in a sealed state between the insertion side flange 24a and the fixing flange 41,
The boundary of the bundled electric wire and the cross section of the bundled electric wire passing through the boundary correspond to the end of the water stop treatment unit 125,
The insertion other end accommodating space corresponds to the sub-chamber 40,
The bundled wire housing space corresponds to the main chamber interior 20a,
The inspection gas corresponds to the He gas 200,
The inspection gas supply means corresponds to the gas valve 22,
The insertion other end accommodating space corresponds to the sub-chamber space 42a,
The atmosphere corresponds to air 300,
The inspection gas concentration measuring means corresponds to the concentration measuring probe 50,
The barometric pressure measuring means corresponds to the barometric pressure gauge 23,
The replacement gas corresponds to the air 300,
The inspection gas replacement means corresponds to the air injection valve 310 and the He exhaust valve 320,
The inspection control device corresponds to the inspection control terminal 60,
The water stop performance judging means corresponds to the water stop performance judging program,
The identification information corresponds to the QR code,
The storage means corresponds to the storage device 64,
The insertion other end accommodating step corresponds to step s1,
The one-end bundled wire housing step corresponds to step s2,
The grommet fixing process corresponds to step s3,
The inspection gas supply process corresponds to step s7,
The inspection gas concentration measurement process corresponds to step s10,
The water stopping performance determination process corresponds to step s16,
The identification information acquisition step corresponds to step s5,
The determination result storing step corresponds to step s19,
The present invention is not limited only to the configuration of the above-described embodiment, and many embodiments can be obtained.

The block diagram explaining the system configuration | structure of a still water inspection system. The perspective view of a water stop test | inspection apparatus. The longitudinal cross-sectional view of a still water inspection apparatus. The disassembled perspective view of a water stop test | inspection apparatus. The perspective view of W / H with a grommet. The flowchart of the inspection method of the water stop inspection of W / H with a grommet using a water stop inspection system. Explanatory drawing explaining mounting | wearing of the sub chamber to W / H with a grommet. The side view of the water stop test | inspection apparatus provided with the replacement means. The longitudinal cross-sectional view of the water stop test | inspection apparatus of another embodiment.

DESCRIPTION OF SYMBOLS 1 ... Water stop inspection system 10 ... Water stop inspection apparatus 20 ... Main chamber 20a ... Main chamber inside 21 ... Insertion port 22 ... Gas valve 23 ... Barometric pressure meter 30 ... Fixed clamp 40 ... Subchamber 42a ... Subchamber space 50 ... Concentration measurement Probe 60 ... Inspection control terminal 64 ... Storage device 100 ... W / H with grommet
110 ... W / H
DESCRIPTION OF SYMBOLS 112 ... Insertion part 120 ... Grommet 124 ... Through-hole 125 ... Water stop processing part 200 ... He gas 300 ... Air 310 ... Air injection valve 320 ... He discharge valve

Claims (9)

A grommet having a through hole allowing insertion of a bundled electric wire is attached to the intermediate portion in the longitudinal direction, and at least the insertion portion of the wire harness with grommet is water-stopped at the insertion portion inside the through hole. A still water inspection device for inspecting water performance,
A bundled wire housing space that includes an insertion port at an end, and that allows the bundled wire on one end side from the grommet of the wire harness with grommet inserted from the insertion port,
Grommet fixing means for fixing the grommet arranged so as to close the insertion port at an end portion on one end side of the grommet;
The other insertion end that is attached in a sealed state to the outer periphery of the bundled electric wire on the other end side from the grommet fixed by the grommet fixing means and that surrounds the other end of the insertion portion in the grommet in a substantially sealed state It is composed of a part housing space,
In the bundled wire housing space,
A test gas supply means for supplying a test gas so that the air pressure in the bundled wire housing space is constant, and an atmospheric pressure measuring means for measuring the air pressure in the bundled wire housing space,
In the insertion other end accommodating space,
A test gas concentration measuring means for measuring the concentration of the test gas with respect to the atmosphere in the insertion other end accommodating space;
The inspection gas supply means supplies the inspection gas based on the measurement result by the atmospheric pressure measurement means ,
In the bundled wire housing space,
A water-stop inspection device provided with inspection gas replacement means for replacing the inspection gas supplied into the bundled wire housing space with a replacement gas . The water stop inspection device according to claim 1 and an inspection control device that controls the water stop inspection,
In the inspection control device,
A water stop inspection system comprising a water stop performance determination means for determining the water stop performance of the insertion portion based on the measurement result of the test gas concentration by the test gas concentration measurement means. In the inspection control device,
The water stop of Claim 2 provided with the memory | storage means which correlates and memorize | stores the identification information which specifies the wire harness with a grommet which is a test object, and the determination result information by the said water stop performance determination means of the said wire harness with a grommet. Inspection system. A grommet having a through hole allowing insertion of a bundled electric wire is attached to the intermediate portion in the longitudinal direction, and at least the insertion portion of the wire harness with grommet is water-stopped at the insertion portion inside the through hole. A still water inspection device that inspects water performance ,
A bundled wire housing space that includes an insertion port at an end, and that allows the bundled wire on one end side from the grommet of the wire harness with grommet inserted from the insertion port,
Grommet fixing means for fixing the grommet arranged so as to close the insertion port at an end portion on one end side of the grommet;
The other insertion end that is attached in a sealed state to the outer periphery of the bundled electric wire on the other end side from the grommet fixed by the grommet fixing means and that surrounds the other end of the insertion portion in the grommet in a substantially sealed state It is composed of a part housing space,
In the bundled wire housing space,
A test gas supply means for supplying a test gas so that the air pressure in the bundled wire housing space is constant, and an atmospheric pressure measuring means for measuring the air pressure in the bundled wire housing space,
In the insertion other end accommodating space,
A test gas concentration measuring means for measuring the concentration of the test gas with respect to the atmosphere in the insertion other end accommodating space;
The inspection gas supply means supplies the inspection gas based on the measurement result by the atmospheric pressure measurement means ,
The water stop inspection device and an inspection control device for controlling the water stop inspection,
In the inspection control device,
While comprising a water stop performance determining means for determining the water stop performance of the insertion portion based on the concentration measurement result of the test gas by the test gas concentration measuring means ,
A storage unit is provided that associates and stores identification information for specifying the grommet-equipped wire harness to be inspected and determination result information by the water stop performance determination unit of the grommet-equipped wire harness.
Water stop inspection system. A grommet having a through-hole allowing insertion of a bundled wire is attached to the middle portion in the longitudinal direction, and at least the water insertion treatment of the wire harness with grommet is performed on the insertion portion of the bundled wire. A still water inspection method for inspecting performance,
One end side bundled wire housing step of housing the bundled wire on one end side from the grommet of the wire harness with grommet in a bundled wire housing space provided with an insertion port at an end portion;
A grommet fixing step of arranging and fixing the grommet so as to close the insertion port at an end portion on one end side of the grommet;
The other end of the grommet that is fixedly attached to the outer periphery of the bundled electric wire on the other end side from the grommet fixed in the grommet fixing step and that surrounds the other end of the insertion portion of the grommet in a substantially hermetically sealed state Insertion other end space mounting process for mounting the part accommodating space;
A test gas supply step of supplying a test gas based on a measurement result obtained by measuring the air pressure in the bundled wire housing space while supplying the test gas so that the air pressure in the bundled wire housing space is constant; ,
A test gas concentration measuring step for measuring the concentration of the test gas with respect to the atmosphere in the insertion other end accommodating space ;
A water stop performance determination step of determining water stopping performance of the insertion portion on the basis of the density measurement result before Symbol test gas concentration measurement step,
An identification information acquisition step of acquiring identification information for specifying the grommet-equipped wire harness to be inspected;
And a determination result storage step for storing the determination result information in the water stop performance determination step in association with each other.
Water stop inspection method. A grommet having a through-hole allowing insertion of a bundled wire is attached to the middle portion in the longitudinal direction, and at least the water insertion treatment of the wire harness with grommet is performed on the insertion portion of the bundled wire. A still water inspection method for inspecting performance,
One end side bundled wire housing step of housing the bundled wire on one end side from the grommet of the wire harness with grommet in a bundled wire housing space provided with an insertion port at an end portion;
A grommet fixing step of arranging and fixing the grommet so as to close the insertion port at an end portion on one end side of the grommet;
The other end of the grommet that is fixedly attached to the outer periphery of the bundled electric wire on the other end side from the grommet fixed in the grommet fixing step and that surrounds the other end of the insertion portion of the grommet in a substantially hermetically sealed state Insertion other end space mounting process for mounting the part accommodating space;
A test gas supply step of supplying a test gas based on a measurement result obtained by measuring the air pressure in the bundled wire housing space while supplying the test gas so that the air pressure in the bundled wire housing space is constant; ,
A test gas concentration measuring step for measuring the concentration of the test gas with respect to the atmosphere in the insertion other end accommodating space ;
After pre-Symbol test gas concentration measurement step,
And a test gas replacement step of replacing the test gas supplied into the bundled wire housing space with a replacement gas .
Water stop inspection method. The water stop inspection method according to claim 6 , further comprising a water stop performance determination step of determining the water stop performance of the insertion portion based on a concentration measurement result in the test gas concentration measurement step. An identification information acquisition step of acquiring identification information for specifying the grommet-equipped wire harness to be inspected;
The water stop inspection method according to claim 7 , further comprising: a determination result storage step of storing the determination result information in the water stop performance determination step in association with each other. A bundled wire is formed by bundling a predetermined number of wires,
Inserting the grommet in a predetermined position of the bundled electric wire by inserting the bundled electric wire through an insertion hole provided in the grommet,
Water-stopping the insertion part of the bundled wire that passes through the insertion hole,
The manufacturing method of the wire harness with a grommet which carries out a water stop test | inspection for the wire harness with a grommet in which the said insertion part was water-stopped by the water stop test method in any one of Claims 5-8.

Images