CN115397168A - Sealing device and sealing performance detection method - Google Patents
Sealing device and sealing performance detection method Download PDFInfo
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- CN115397168A CN115397168A CN202210960417.7A CN202210960417A CN115397168A CN 115397168 A CN115397168 A CN 115397168A CN 202210960417 A CN202210960417 A CN 202210960417A CN 115397168 A CN115397168 A CN 115397168A
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/06—Hermetically-sealed casings
- H05K5/063—Hermetically-sealed casings sealed by a labyrinth structure provided at the joining parts
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/06—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing bubbles in a liquid pool
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Abstract
The application provides a sealing device and a sealing performance detection method. The sealing device comprises a first sealing element, a sealing ring and a second sealing element, wherein the first sealing element is used for abutting against the inside of the cooling groove, an annular sealing groove is formed in the outer side of the first sealing element and used for being arranged in the cooling groove, the sealing ring is arranged in the annular sealing groove, the second sealing element is located in the annular sealing groove and abutted against the sealing ring, so that the sealing ring is elastically abutted against the groove wall of the annular sealing groove, the sealing ring is also used for elastically abutting against the groove wall of the cooling groove, and the sealing ring is further used for sealing the cooling groove. Because sealing washer and annular seal groove all are located the cooling bath for first sealing member, second sealing member and sealing washer all need not to cover the surface of cooling piece, also can not be covered when the leakproofness detects on the surface of cooling piece, and then avoided the condition that the leakage point of cooling piece is covered, and then make the measuring personnel can accurately judge out the position of leakage point.
Description
Technical Field
The invention relates to the technical field of sealing performance detection, in particular to a sealing device and a sealing performance detection method.
Background
Along with the propulsion of the automobile industry revolution, the electric vehicle replaces the fuel vehicle to develop fast, and the electric vehicle demand is bigger and bigger, and output promotes fast, and the electronic box controller is as the electric vehicle core, and its security directly influences the security and the stability of whole car. The electric cabinet controller is installed in the electric cabinet box body, and the electric cabinet box body includes the cooling piece, is formed with the cooling water course in the cooling piece, and the cooling water course includes the cooling bath for the part of cooling water course opens, so that process the cooling water course. In order to seal the cooling groove, the cooling piece is further provided with an annular sealing groove which is arranged along the periphery of the cooling groove in a surrounding mode.
In order to avoid short circuit of the electric box controller caused by leakage of the cooling water channel, the tightness detection of the cooling piece is required. Among the conventional art, when carrying out leakproofness detection to the cooling piece, at first do sealedly in the ring seal groove, the sealing washer setting is in the ring seal groove promptly, the closing plate lid fit the cooling bath and with sealing washer elasticity butt, then with the electric cabinet box invasion aquatic after the sealing, then aerify the cooling water course to make the leak point gassing, judge the leak point of cooling piece through the bubble at last, so that repair the leak point of cooling piece.
However, the annular sealing groove is arranged on the surface of the cooling part, so that the sealing plate shields part of the surface of the cooling part, and then a detector cannot accurately judge the position of the leakage point. Moreover, because the sealing washer is located the ring seal groove for the sand gas pocket on the cell wall of ring seal groove is blockked up to the sealing washer, and then makes the sand gas pocket can't produce the bubble, and then makes the sand gas pocket unable discover, and then makes the error that the leakproofness detected great.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a sealing device and a sealing performance detection method which can accurately judge the position of a leakage point of a box body and have small detection errors.
The purpose of the invention is realized by the following technical scheme:
a seal arrangement comprising:
the first sealing element is abutted in a cooling groove, an annular sealing groove is formed on the outer side of the first sealing element, and the annular sealing groove is arranged in the cooling groove;
the sealing ring is arranged in the annular sealing groove;
and the second sealing element is positioned in the annular sealing groove and is abutted against the sealing ring, so that the sealing ring is elastically abutted against the groove wall of the annular sealing groove, the sealing ring is also used for elastically abutting against the groove wall of the cooling groove, and the sealing ring is further used for sealing the cooling groove.
In one embodiment, the first sealing element includes a first sealing body and a first abutting portion, the first sealing body is configured to abut against the cooling groove, the first abutting portion is connected to the first sealing body in a protruding manner, the first abutting portion is circumferentially arranged along the first sealing body, and the first abutting portion and the first sealing body together form the annular sealing groove.
In one embodiment, the second sealing element includes a second sealing body and a second abutting portion, the second abutting portion is connected to the second sealing body in a protruding manner, the second abutting portion is circumferentially arranged along the second sealing body, an outer side surface of the second abutting portion is flush with an outer side surface of the second sealing body, and the second abutting portion is located in the annular sealing groove and abuts against the sealing ring.
In one embodiment, the first sealing element includes a first sealing body and a first abutting portion, the first sealing body is configured to abut against the cooling groove, the first abutting portion is connected to the first sealing body in a protruding manner, the first abutting portion is circumferentially arranged along the circumferential direction of the first sealing body, and the first abutting portion and the first sealing body together form the annular sealing groove;
the second sealing element comprises a second sealing body and a second abutting part, the second abutting part is convexly connected to the second sealing body, the second abutting part is arranged in a surrounding mode along the circumferential direction of the second sealing body, the outer side face of the second abutting part is flush with the outer side face of the second sealing body, and the second abutting part is located in the annular sealing groove and abuts against the sealing ring;
the second abutting part and the second sealing body jointly form a spacing groove, and part of the first sealing body is accommodated in the spacing groove.
In one embodiment, the annular seal groove extends to a side of the first seal adjacent the first seal.
In one embodiment, the seal ring is received entirely within the annular seal groove.
In one embodiment, a gap exists between the sealing ring and the groove wall of the annular sealing groove.
In one embodiment, a side of the first sealing element facing away from the second sealing element is formed with a communication groove for communicating with the cooling groove.
In one embodiment, the sealing ring is of a silica gel structure or a rubber structure.
A method for detecting sealing performance, which performs a sealing test by using the sealing device according to any of the embodiments described above, includes:
placing the first seal in the cooling groove so that the annular seal groove is located in the cooling groove, and the opening of the annular seal groove faces the outside of the cooling groove;
placing the seal ring in the annular seal groove;
and abutting the second sealing element against the sealing ring so that the sealing ring is elastically abutted against the groove wall of the annular sealing groove, and the sealing ring is also used for elastically abutting against the groove wall of the cooling groove so as to be used for sealing the cooling groove.
Compared with the prior art, the invention has at least the following advantages:
1. because the sealing ring and the annular sealing groove are both positioned in the cooling groove, the sealing device is prevented from covering the surface of the cooling part, the condition that the leakage point of the cooling part is covered is further avoided, and then a detector can accurately judge the position of the leakage point.
2. Because the sealing washer sets up with the annular seal groove stagger, avoided the sealing washer to block up the sand gas pocket on the cell wall of annular seal groove, and then make the sand gas pocket on the cell wall of annular seal groove can produce the bubble, even make the sand gas pocket can be observed, and then reduced the error that the leakproofness detected.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic view of an embodiment of a sealing device and a cooling element;
FIG. 2 is an exploded view of the sealing device and cooling element shown in FIG. 1;
FIG. 3 is a schematic structural diagram of an electric cabinet according to an embodiment;
FIG. 4 is a schematic view of another embodiment of a sealing device and a cooling element;
FIG. 5 is an enlarged view of the seal and cooling element shown in FIG. 4 at A;
FIG. 6 is a flowchart illustrating steps of a method for leak detection according to an embodiment.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a single embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The application provides a sealing device, including first sealing member, sealing washer and second sealing member, first sealing member is used for the butt at the cooling bath, the outside of first sealing member is formed with annular seal groove, annular seal groove is used for setting up in the cooling bath, the sealing washer sets up in annular seal groove, the second sealing member be located annular seal groove and with the sealing washer butt, so that sealing washer elasticity butt in the cell wall of annular seal groove, still make the sealing washer be used for the cell wall of elasticity butt at the cooling bath, and then make the sealing washer be used for sealed cooling bath.
According to the sealing device, the sealing ring and the annular sealing groove are both located in the cooling groove, so that the sealing device is prevented from covering the surface of the cooling part, the situation that the leakage point of the cooling part is covered is avoided, and the position of the leakage point can be accurately judged by a detector. Moreover, the sealing ring and the annular sealing groove are arranged in a staggered mode, so that the sealing ring is prevented from blocking sand air holes in the groove wall of the annular sealing groove, air bubbles can be generated in the sand air holes in the groove wall of the annular sealing groove, the sand air holes can be observed, and the error of sealing detection is reduced.
In order to better understand the technical scheme and the beneficial effects of the present application, the following detailed description is further provided in conjunction with specific embodiments:
as shown in fig. 1 to 3, a sealing device 10 according to an embodiment includes a first sealing member 100, a sealing ring 200, and a second sealing member 300, the first sealing member 100 is configured to abut against a cooling groove 901, an annular sealing groove 101 is formed outside the first sealing member 100, the annular sealing groove 101 is configured to be disposed in the cooling groove 901, the sealing ring 200 is disposed in the annular sealing groove 101, and the second sealing member 300 is disposed in the annular sealing groove 101 and abuts against the sealing ring 200, such that the sealing ring 200 elastically abuts against a groove wall of the annular sealing groove 101, the sealing ring 200 also elastically abuts against a groove wall of the cooling groove 901, and the sealing ring 200 is configured to seal the cooling groove 901.
As shown in fig. 1 to 3, in the present embodiment, the electric cabinet 20 includes a cooling member 900, the cooling member 900 has a cooling groove 901, the first seal 100 is disposed in the cooling groove 901, the first seal 100 is configured to abut against a groove wall of the cooling groove 901, an annular seal groove 101 is formed outside the first seal 100, and the annular seal groove 101 is configured to face a side wall of the cooling groove 901. The sealing ring 200 is disposed in the annular sealing groove 101, and the second sealing element 300 is located in the annular sealing groove 101 and abuts against the sealing ring 200, so that the sealing ring 200 deforms, the sealing ring 200 abuts against a groove wall of the annular sealing groove 101, and the sealing ring 200 is used for abutting against a groove wall of the cooling groove 901, that is, the sealing ring 200 is used for abutting against a groove wall of the annular sealing groove 101 and a groove wall of the cooling groove 901, respectively, so that the sealing ring 200 seals the cooling groove 901.
Further, after the cooling tank 901 is sealed, the cooling element 900 of the electric cabinet 20 is completely immersed in water, then the cooling water channel is inflated to generate bubbles at the leakage point, and finally the leakage point of the cooling element 900 is judged through the bubbles to repair the leakage point of the cooling element 900.
In the sealing device 10, because the sealing ring 200 and the annular sealing groove 101 are both located in the cooling groove 901, the sealing device 10 is prevented from covering the surface of the cooling part 900, and then the situation that the leakage point of the cooling part 900 is covered is avoided, and further, a detector can accurately judge the position of the leakage point. Moreover, due to the fact that the sealing ring 200 and the annular sealing groove 902 are arranged in a staggered mode, the sealing ring 200 is prevented from blocking sand air holes in the groove wall of the annular sealing groove 902, air bubbles can be generated in the sand air holes in the groove wall of the annular sealing groove 902, the sand air holes can be observed, and therefore the error of sealing performance detection is reduced.
As shown in fig. 1 and fig. 2, in one embodiment, the first sealing element 100 includes a first sealing body 110 and a first abutting portion 120, the first sealing body 110 is configured to abut against the cooling groove 901, the first abutting portion 120 is connected to the first sealing body 110 in a protruding manner, the first abutting portion 120 is circumferentially disposed along the first sealing body 110, the first abutting portion 120 and the first sealing body 110 together form an annular sealing groove 101, and the annular sealing groove 101 is adapted to the sealing ring 200. In the present embodiment, the first sealing body 110 is configured to be disposed in the cooling tank 901, and the first sealing body 110 abuts against a tank wall of the cooling tank 901.
As shown in fig. 1 and fig. 2, in one embodiment, the second sealing member 300 includes a second sealing body 310 and a second abutting portion 320, the second abutting portion 320 is connected to the second sealing body 310 in a protruding manner, the second abutting portion 320 is circumferentially disposed along the second sealing body 310, and an outer side surface of the second abutting portion 320 is flush with an outer side surface of the second sealing body 310, so as to prevent the second sealing body 310 from shielding a surface of the cooling member 900 during sealing, and further prevent a leakage point of the cooling member 900 from being covered, so that a detection person can accurately determine a position of the leakage point. In the present embodiment, the second contact portion 320 is located in the annular seal groove 101 and contacts the seal ring 200.
As shown in fig. 1 and fig. 2, in one embodiment, the first sealing element 100 includes a first sealing body 110 and a first abutting portion 120, the first sealing body 110 is configured to abut against the cooling groove 901, the first abutting portion 120 is connected to the first sealing body 110 in a protruding manner, the first abutting portion 120 is disposed around the first sealing body 110 in a circumferential direction, and the first abutting portion 120 and the first sealing body 110 together form an annular sealing groove 101. The second sealing element 300 includes a second sealing body 310 and a second abutting portion 320, the second abutting portion 320 is connected to the second sealing body 310 in a protruding manner, the second abutting portion 320 is circumferentially disposed along the second sealing body 310, an outer side surface of the second abutting portion 320 is flush with an outer side surface of the second sealing body 310, and the second abutting portion 320 is located in the annular sealing groove 101 and abuts against the sealing ring 200. The second abutting portion 320 and the second sealing body 310 together form a clearance groove 301, and a portion of the first sealing body 110 is accommodated in the clearance groove 301, so as to prevent the second sealing member 300 and the first sealing body 110 from interfering with each other during sealing.
As shown in fig. 1 and 2, in one embodiment, the annular sealing groove 101 extends to a side of the first sealing member 100 adjacent to the first sealing member 100, such that the annular sealing groove 101 is open when the first sealing member 100 abuts against the cooling groove 901, and the second sealing member 300 is accommodated in the annular sealing groove 101 and presses the sealing ring 200, such that the sealing ring 200 can be used to seal the cooling groove 901.
As shown in fig. 1 and fig. 2, in one embodiment, the sealing ring 200 is completely accommodated in the annular sealing groove 101, so that the sealing ring 200 is prevented from being extruded into the cooling groove 901 when being squeezed, and the sealing ring 200 is ensured to seal the cooling groove 901 in the annular sealing groove 101, thereby improving the sealing effect of the sealing ring 200, and further ensuring the effect of the sealing performance detection.
As shown in fig. 1 and fig. 2, in one embodiment, a gap exists between the seal ring 200 and a groove wall of the annular seal groove 101, so that the seal ring 200 is more easily placed in the annular seal groove 902, the placing efficiency of the seal ring 200 is improved, and the sealing performance detection efficiency is further improved.
As shown in fig. 2, in one embodiment, a communication groove 102 is formed on a side of the first sealing element 100 facing away from the second sealing element 300, and the communication groove 102 is used for communicating with the cooling groove 901, so that an inlet of the cooling water channel is communicated with an outlet through the communication groove 102, that is, the cooling water channel is prevented from being blocked, and then gas can flow through the cooling water channel, and thus a detection area of the cooling element 900 is increased, and an effect of detecting the sealing performance is improved.
In one embodiment, the sealing ring 200 is a silicone structure or a rubber structure, so that the sealing ring 200 has elasticity, and the sealing ring 200 has a sealing effect.
It is understood that, in order to ensure the sealing effect of the sealing device 10, the gap between the first seal 100 and the side wall of the cooling groove 901 is small, and the gap between the second seal 300 and the side wall of the cooling groove 901 is small. When the sealing contact is completed, it is difficult to manually remove the first and second seals 100 and 300 from the cooling groove 901.
As shown in fig. 4, in one embodiment, the sealing device 10 further includes a return spring 400, the return spring 400 is configured to be disposed in the cooling groove 901, a first end of the return spring 400 is configured to abut against a groove wall of the cooling groove 901, and a second end of the return spring 400 is configured to abut against a side of the first sealing member 100 facing away from the second sealing member 300. In this embodiment, when the sealing performance of the electric cabinet 20 is detected, the second sealing element 300 is pushed to compress the return spring 400, and the sealing ring 200 is elastically abutted to the first sealing element 100 and the second sealing element 300, so that the sealing ring 200 is elastically abutted to the groove wall of the annular sealing groove 101 and the groove wall of the cooling groove 901, respectively, and the sealing ring 200 is used for sealing the cooling groove 901. After the sealing performance detection is completed, the second sealing element 300 is loosened, so that the return spring 400 is elastically restored, and further the return spring 400 pushes the first sealing element 100, the second sealing element 300 and the sealing ring 200 to be separated from the cooling tank 901, the difficulty of taking the sealing device 10 out of the cooling tank 901 is reduced, and the efficiency of taking the sealing device 10 out of the cooling tank 901 is improved.
It can be understood that, since the first sealing member 100 is configured to abut in the cooling groove 901, the groove wall of the cooling groove 901 is in contact with the first sealing member 100, and thus the leakage points on the groove wall of the cooling groove 901 are blocked, and thus the leakage points on the groove wall of the cooling groove 901 are difficult to find.
In order to reduce the contact area between the first seal 100 and the wall of the cooling groove 901, so that the leakage point on the wall of the cooling groove 901 is easy to be found, as shown in fig. 4, in one embodiment, the first seal 100 is spaced from the bottom wall of the cooling groove 901, and the first end of the return spring 400 abuts against the bottom wall of the cooling groove 901. In the present embodiment, since the first end of the return spring 400 contacts the bottom wall of the cooling groove 901, the first seal 100 is supported, thereby ensuring that the first seal 100 can be maintained in the sealing position. Moreover, because the first sealing element 100 is arranged at an interval with the bottom wall of the cooling tank 901, and the contact area between the return spring 400 and the bottom wall of the cooling tank 901 is smaller, the contact area between the bottom wall of the cooling tank 901 and the outside is reduced, the problem that a leakage point on the bottom wall of the cooling tank 901 is blocked is suppressed, and further the leakage point on the bottom wall of the cooling tank 901 is easy to generate bubbles, and further a leakage part on the bottom wall of the cooling tank 901 is easy to find, and further the detection area of the sealing detection is increased, that is, the area of the missed detection is also reduced, and further the effect of the sealing detection is improved. The bottom wall of the cooling tank 901 is a tank wall disposed opposite to the opening.
In addition, as shown in fig. 4, in the present embodiment, there is an arc transition surface between the bottom wall and the peripheral wall of the cooling groove 901, and since the first sealing member 100 is disposed at an interval from the bottom wall of the cooling groove 901, the first sealing member 100 does not need to be matched with the arc transition surface of the cooling groove 901, which reduces the processing requirement of the first sealing member 100, and further reduces the processing requirement of the sealing device 10.
As shown in fig. 4, further, a communication groove 102 is formed on a side of the first seal 100 facing away from the second seal 300, and the communication groove 102 is used for communicating with the cooling groove 901, so that the inlet of the cooling water passage communicates with the outlet through the communication groove 102. The second end of the return spring 400 abuts against the groove wall of the communication groove 102. In this embodiment, when the seal ring 200 and the second seal member 300 are mounted, the first seal member 100 is pushed to compress the return spring 400 so that the return spring 400 is completely accommodated in the communication groove 102, and the first seal member 100 is brought into contact with the bottom wall of the cooling groove 901, so that the positional stability of the first seal member 100 is high, the efficiency of aligning the seal ring 200 with the first seal member 100 is improved, the efficiency of aligning the second seal member 300 with the seal ring 200 is improved, and the efficiency of detecting the sealing performance is improved.
As shown in fig. 4, the number of return springs 400 is plural, the plural return springs 400 are provided at intervals in the cooling tank 901, the first end of each return spring 400 abuts against the lower wall of the cooling tank 901, and the second end of each return spring 400 abuts against the wall of the communication groove 102. In this embodiment, because the plurality of return springs 400 are in contact with the groove wall of the communicating groove 102, that is, the plurality of return springs 400 are in contact with the first sealing element 100, so that the stress on the first sealing element 100 is relatively uniform, the position stability of the first sealing element 100 is improved, the shaking of the first sealing element 100 during the movement is suppressed, the problem that the groove wall of the cooling groove 901 is scratched by the first sealing element 100 is further suppressed, the tightness of the contact between the seal ring 200 and the groove wall of the cooling groove 901 is further ensured, and the sealing effect of the seal ring 200 on the cooling groove 901 during the detection is further ensured.
However, because the return spring 400 has elasticity, the first sealing member 100 shakes when being aligned with the second sealing member 300, so that the second sealing member 300 is easily deviated after being aligned with the first sealing member 100, and further, the installation efficiency of the second sealing member 300 is low, and further, the sealing performance detection efficiency is poor.
In order to avoid the problem of the offset of the second sealing element 300 during installation, as shown in fig. 4, in one embodiment, the sealing device 10 further includes a guide post 500, the first sealing element 100 is provided with an installation hole 103, the first sealing element 300 is provided with a sliding through hole 302, a first end of the guide post 500 is located in the installation hole 103 and fixedly connected with the first sealing element 100, the guide post 500 is inserted into the sliding through hole 302 and sleeved with the second sealing element 300, so that the second sealing element 300 is slidably connected to the guide post 500, and a portion of the second sealing element 300 is disposed opposite to the sealing ring 200, that is, a portion of the second sealing element 300 is disposed opposite to the annular sealing groove 101.
As shown in fig. 4, in the present embodiment, during the process of mounting the second seal 300, the second seal 300 slides along the guide column 500 so that a portion of the second seal 300 enters the annular seal groove 101 and abuts against the seal ring 200. Because the guide post 500 is installed on the first sealing element 100, the second sealing element 300 slides along the guide post 500, so that the second sealing element 300 is always arranged opposite to the sealing ring 200 and the annular sealing groove 101, the problem that the first sealing element 100 deviates from the annular sealing groove 101 and the sealing ring 200 is avoided, the installation efficiency of the second sealing element 300 is improved, and the sealing performance detection efficiency is further improved. In addition, because the guide post 500 is located in the sliding through hole 302 and is sleeved with the second sealing element 300, the guide post 500 limits the movement of the second sealing element 300, inhibits the displacement of the second sealing element 300, and further avoids the situation that a local gap is large between the groove wall of the second sealing element 300 and the groove wall of the cooling groove 901, so that the sealing effect of the sealing ring 200 is improved, and further the sealing performance detection effect is improved.
As shown in fig. 4, further, the number of the guide posts 500 is plural, the plurality of guide posts 500 are arranged at intervals, the number of the mounting holes 103 is plural, the number of the sliding through holes 302 is plural, the plurality of guide posts 500, the plurality of mounting holes 103, and the plurality of sliding through holes 302 are arranged in one-to-one correspondence, the first end of each guide post 500 is located in the corresponding mounting hole 103 and fixedly connected to the first sealing member 100, and each guide post 500 is inserted into the corresponding sliding through hole 302 and sleeved with the second sealing member 300, so that the second sealing member 300 is slidably connected to the plurality of guide posts 500, and a part of the second sealing member 300 is always arranged opposite to the sealing ring 200, that is, a part of the second sealing member 300 is always arranged opposite to the annular sealing groove 101. It can be understood that, because the second sealing element 300 slides along the guiding column 500, the movement of the second sealing element 300 is smoother, and then the operator can easily push the second sealing element 300, and then the force of the operator pressing the second sealing element 300 is easily too large, and then the pressure of the second sealing element 300 extruding the sealing ring 200 is easily too large, when the sealing ring 200 is greatly worn, and then the sealing ring 200 is easily failed.
In order to prevent the sealing ring 200 from failing, as shown in fig. 4 and 5, in one embodiment, the sealing device 10 further includes a pressure sensor 600 and an alarm, the sealing ring 200 is wrapped and connected in the pressure sensor 600, the alarm is electrically connected with the pressure sensor 600, and the alarm is arranged outside the water pool. In this embodiment, when the second sealing element 300 abuts against the sealing ring 200, the sealing ring 200 elastically abuts against the first sealing element 100 and the second sealing element 300 respectively, at this time, the pressure sensor 600 receives pressure, when the pressure received by the pressure sensor 600 reaches a preset value, the alarm sends an alarm signal to prompt an operator to reduce the thrust of the second sealing element 300, when the pressure received by the pressure sensor 600 is lower than the preset value, the alarm stops sending a signal to prompt the operator not to continuously reduce the thrust of the second sealing element 300, so that the pressure received by the sealing ring 200 is prevented from being too large, the abrasion of the sealing ring 200 is further suppressed, the service life of the sealing ring 200 is prolonged, the duration of continuous sealing performance detection of the sealing device 10 is further increased, that is, the working continuity of the sealing device 10 is improved, that the efficiency of large-batch sealing performance detection is further improved, and meanwhile, the probability of large detection errors caused by the failure of the sealing ring 200 is also prevented from being reduced, that the accuracy of the sealing performance detection is improved.
As shown in fig. 4, in one embodiment, the second sealing element 300 includes a second sealing body 310 and a second abutting portion 320, the second abutting portion 320 is connected to the second sealing body 310 in a protruding manner, the second abutting portion 320 is disposed around the second sealing body 310 in the circumferential direction, and the outer side surface of the second abutting portion 320 is flush with the outer side surface of the second sealing body 310, so as to prevent the second sealing body 310 from shielding the surface of the cooling element 900 during sealing, thereby preventing the leakage point of the cooling element 900 from being covered, and further enabling the inspector to accurately determine the position of the leakage point. In the present embodiment, the second abutting portion 320 is located in the annular seal groove 101 and abuts against the seal ring 200.
In order to increase the problem of the second abutting portion 320 getting stuck in the process of being accommodated in the annular seal groove 101 and further reduce the abrasion of the second abutting portion 320 against the groove walls of the first seal 100 and the cooling groove 901, as shown in fig. 5, further, the inner and outer sides of the second abutting portion 320 are respectively provided with an inclined surface so that the end of the second abutting portion 320 departing from the second seal body 310 is thin, further, a gap is formed between the end of the second abutting portion 320 and the annular seal groove 101 and a gap is formed between the end of the second abutting portion 320 and the groove wall of the cooling groove 901, thereby avoiding the problem of the second abutting portion 320 getting stuck in the process of being accommodated in the annular seal groove 101, further suppressing the abrasion of the second abutting portion 320 against the groove wall of the cooling groove 901, suppressing the abrasion of the second abutting portion 320 against the second seal 300, and further ensuring the sealing effect of the sealing device 10.
As shown in fig. 4, in one embodiment, the sealing device 10 further includes a linear driving motor 700, and a power output end of the linear driving motor 700 is connected to the second sealing member 300, so that the linear driving motor 700 is used for driving the second sealing member 300 into the annular sealing groove 101 to elastically abut against the sealing ring 200. In this embodiment, the second sealing element 300 is driven to move by the linear driving motor 700, so that the labor is saved, the labor intensity of the detecting personnel is reduced, the movement precision of the second sealing element 300 is improved, the controllability of the movement quantity of the second sealing element 300 is stronger, the extrusion force received by the sealing ring 200 is ensured to be within the preset range, the sealing effect of the sealing ring 200 is improved, the sealing performance detection effect is improved, and meanwhile, the service life of the sealing ring 200 is prolonged. Further, a linear driving motor 700 is installed on the guide pole 500.
As shown in fig. 6, the present application further provides a method for detecting a sealing property, which performs a sealing test using the sealing device 10 according to any of the above embodiments, the method for detecting a sealing property including:
s100: and placing the sealing ring in the annular sealing groove.
In this embodiment, the sealing ring is sleeved on the first sealing element, so that the sealing ring is disposed in the annular sealing groove and abuts against a groove wall of the annular sealing groove.
S300: the first sealing element is placed in the cooling groove, so that the sealing ring is located in the cooling groove, and the opening of the annular sealing groove faces the outside of the cooling groove.
In this embodiment, the first seal is placed in the cooling groove so that the seal ring is also disposed in the cooling groove for sealing in a subsequent step. The opening of the annular seal groove is directed to the outside of the cooling groove, so that a second seal member in a subsequent step enters the annular seal groove and abuts against the seal ring.
S500: and abutting the second sealing element against the sealing ring so that the sealing ring is elastically abutted against the groove wall of the annular sealing groove, and the sealing ring is used for elastically abutting against the groove wall of the cooling groove so as to be used for sealing the cooling groove.
In this embodiment, insert the part of second sealing member in the cyclic annular seal groove to make the second sealing member and the sealing washer butt in the cyclic annular seal groove, and then make the sealing washer receive the extrusion of second sealing member, and then make the sealing washer right with the cell wall elasticity of cyclic annular seal groove, and make the sealing washer still be used for with the cell wall butt of cooling bath, and then make the sealing washer be used for sealed cooling bath, avoid the gas in the follow-up step to leak through the opening of cooling bath, and then reduced the interference that the leakproofness detected.
S700: and completely immersing the cooling piece after sealing the cooling tank into water.
In this embodiment, the cooling element is completely immersed in water, so that bubbles can be generated through the leakage point of the cooling element after the cooling water channel is inflated, bubbles generated on the surface of the cooling element can be observed, and the leakage point of the cooling element can be obtained, so that the cooling element can be repaired.
S900: the cooling water passage is inflated and bubbles on the surface of the cooling member are observed to detect a leakage point of the cooling member.
In this embodiment, the cooling water channel is aerated to fill the cooling water channel with gas, and when the cooling element has a leakage point, the gas in the cooling water channel leaks through the leakage point and generates bubbles, so that the specific position of the leakage point of the cooling element can be observed, and the cooling element can be repaired. Further, the air pressure in the cooling water passage was 6kgf/cm 2 。
In one embodiment, the step of completely immersing the cooling element after sealing the cooling tank in water is specifically as follows: the cooling element after sealing the cooling bath is completely immersed in water with the first surface of the cooling element facing upwards. Further, the step of aerating the cooling water channel and observing the bubbles on the surface of the cooling element to detect leaks in the cooling element comprises: aerating the cooling gallery and observing bubbles on the first surface of the cooling member to detect leaks on the first surface of the cooling member; the electric cabinet box is turned over, i.e. the cooling element is turned over, so that the second surface of the cooling element faces upwards and the bubbles on the second surface are observed, so that leakage points of the second surface of the cooling element are detected.
In this embodiment, the first surface and the second surface are located on opposite sides of the cooling element. Firstly, inflating the cooling water channel to enable the cooling water channel to be filled with gas, so that the gas leaks through the leakage point of the cooling piece and generates bubbles, and the first surface is exposed to the vision of a detector due to the fact that the first surface faces upwards, so that the detector determines the leakage point on the first surface through the bubbles on the first surface; the cooling member is then inverted so that the second surface of the cooling member faces upward, and the second surface is exposed to the vision of the inspector with the second surface facing upward, thereby allowing the inspector to determine a leak on the second surface from the air bubbles on the second surface. So, make the first surface and the second surface of cooling part obtain detecting through upset cooling part, avoided the condition of lou examining, and then reduced the error that the leakproofness detected to repair all leak points with the cooling part.
Compared with the prior art, the invention has at least the following advantages:
1. because the seal ring 200 and the annular seal groove 101 are both located in the cooling groove 901, the surface of the cooling element 900 is prevented from being covered by the sealing device 10, and further the leakage point of the cooling element 900 is prevented from being covered, so that the position of the leakage point can be accurately judged by a detector.
2. Because the sealing ring 200 and the annular sealing groove 902 are arranged in a staggered manner, the sealing ring 200 is prevented from blocking sand air holes on the groove wall of the annular sealing groove 902, so that the sand air holes on the groove wall of the annular sealing groove 902 can generate bubbles, namely the sand air holes can be observed, and further the error of sealing detection is reduced.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent should be subject to the appended claims.
Claims (10)
1. A seal assembly, comprising:
the first sealing element is abutted in a cooling groove, an annular sealing groove is formed on the outer side of the first sealing element, and the annular sealing groove is arranged in the cooling groove;
the sealing ring is arranged in the annular sealing groove;
and the second sealing element is positioned in the annular sealing groove and is abutted against the sealing ring, so that the sealing ring is elastically abutted against the groove wall of the annular sealing groove, the sealing ring is also used for elastically abutting against the groove wall of the cooling groove, and the sealing ring is further used for sealing the cooling groove.
2. The sealing device according to claim 1, wherein the first sealing element includes a first sealing body and a first abutting portion, the first sealing body is configured to abut against the cooling groove, the first abutting portion is connected to the first sealing body in a protruding manner, the first abutting portion is circumferentially disposed along a circumferential direction of the first sealing body, and the first abutting portion and the first sealing body together form the annular sealing groove.
3. The sealing device according to claim 1, wherein the second sealing element includes a second sealing body and a second abutting portion, the second abutting portion is connected to the second sealing body in a protruding manner, the second abutting portion is circumferentially disposed along the second sealing body, an outer side surface of the second abutting portion is flush with an outer side surface of the second sealing body, and the second abutting portion is located in the annular sealing groove and abuts against the sealing ring.
4. The sealing device according to claim 1, wherein the first sealing element includes a first sealing body and a first abutting portion, the first sealing body is configured to abut against the cooling groove, the first abutting portion is connected to the first sealing body in a protruding manner, the first abutting portion is circumferentially disposed along a circumferential direction of the first sealing body, and the first abutting portion and the first sealing body together form the annular sealing groove;
the second sealing element comprises a second sealing body and a second abutting part, the second abutting part is convexly connected to the second sealing body, the second abutting part is arranged in a surrounding mode along the circumferential direction of the second sealing body, the outer side face of the second abutting part is flush with the outer side face of the second sealing body, and the second abutting part is located in the annular sealing groove and abuts against the sealing ring;
the second abutting part and the second sealing body jointly form a position avoiding groove, and part of the first sealing body is contained in the position avoiding groove.
5. The sealing arrangement of claim 1, wherein the annular seal groove extends to a side of the first seal adjacent the first seal.
6. The sealing device of claim 1, wherein the seal ring is completely received within the annular seal groove.
7. The sealing device of claim 1, wherein a gap exists between the seal ring and a groove wall of the annular seal groove.
8. The sealing device of claim 1, wherein a side of the first seal facing away from the second seal is formed with a communication groove for communicating with the cooling groove.
9. The sealing device of claim 1, wherein the sealing ring is of a silicone or rubber construction.
10. A method of testing the sealing performance of a sealing device according to any one of claims 1 to 9, the method comprising:
placing the seal ring in the annular seal groove;
placing the first seal member in the cooling groove so that the seal ring is located in the cooling groove, and the opening of the annular seal groove faces the outside of the cooling groove;
abutting the second sealing element against the sealing ring so that the sealing ring is elastically abutted against the groove wall of the annular sealing groove, and the sealing ring is also used for elastically abutting against the groove wall of the cooling groove so as to be used for sealing the cooling groove;
completely immersing the cooling piece after the cooling tank is sealed in water;
and aerating the cooling water channel, and observing bubbles on the surface of the cooling part to detect a leakage point of the cooling part.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210960417.7A CN115397168A (en) | 2022-08-11 | 2022-08-11 | Sealing device and sealing performance detection method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116678562A (en) * | 2023-08-03 | 2023-09-01 | 山东华邑化工有限公司 | Self-adaptive circulating water pump leakage testing device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116678562A (en) * | 2023-08-03 | 2023-09-01 | 山东华邑化工有限公司 | Self-adaptive circulating water pump leakage testing device |
| CN116678562B (en) * | 2023-08-03 | 2023-09-29 | 山东华邑化工有限公司 | Self-adaptive circulating water pump leakage testing device |
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