CN207009193U - A kind of transformer cable threading hole waterproof sealing structure - Google Patents
A kind of transformer cable threading hole waterproof sealing structure Download PDFInfo
- Publication number
- CN207009193U CN207009193U CN201720551515.XU CN201720551515U CN207009193U CN 207009193 U CN207009193 U CN 207009193U CN 201720551515 U CN201720551515 U CN 201720551515U CN 207009193 U CN207009193 U CN 207009193U
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- CN
- China
- Prior art keywords
- cable
- sealing
- transformer
- threading hole
- filling
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- Expired - Fee Related
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Abstract
A kind of transformer cable threading hole waterproof sealing structure, the sealing ring made of silica gel material including being symmetrically stuck in cable aperture both ends on transformer case, the external diameter of threading hole and cable in the middle part of sealing ring is is interference fitted, the filling sealing-plug between two sealing rings to be formed after filling closing gelling admittedly.Two sealing rings are made by using silica gel material in the utility model, after cable is penetrated in the two sealing rings, because both are interference fitted, therefore, cable is penetrated after sealing ring when penetrating again in cable aperture, due to crimp, so that deadend structure is respectively formed between sealing ring and cable aperture and sealing ring and cable, and the filling closing glue between two sealing rings, so form filling sealing-plug after closing gelling is solid, sealing effectiveness is further enhancing, has completely cut off the infiltration of water completely.
Description
Technical field
The transformer that electric field is used is the utility model is related to, specifically a kind of transformer cable threading hole is prevented
Watertight construction.
Background technology
Transformer is the device for changing alternating voltage using the principle of electromagnetic induction, and main member is primary coil, secondary
Level coil and iron core (magnetic core), major function have voltage transformation, current transformation, impedance conversion, isolation, voltage stabilizing (magnetic saturation transformation
Device) etc..Transformer can be divided into, according to use, power transformer and special transformer (electric furnace change, rectification change, industrial frequency experiment transformation
Device, pressure regulator, mining change, audio-frequency transformer, intermediate-frequency transformer, high frequency transformer, impact transformer, instrument transformer, electronics
Transformer, reactor, transformer etc.).
The primary and secondary of transformer needs to be connected with high input voltage cable and low pressure output electric wire respectively, and joint be
Inside transformer, this requires cable or electric wire penetrates into inside transformer, now, in order to prevent water by cable or electric wire with
The gap of transformer case is entered in transformer, it is necessary to sets sealing structure.But existing sealing structure is typically all
Sealed using various sealing rings, so causing its sealing effectiveness very general, water-proof function can not be realized at all.
Utility model content
In order to solve the problems, such as existing transformer sealing structure imprecision, water-proof function, the utility model can not be realized
Provide a kind of transformer cable threading hole waterproof sealing structure, the sealing ring that the waterproof sealing structure passes through two silica gel materials
With the interference fit of cable, it is achieved thereby that the strict sealing between cable and cable aperture, and between two sealing rings
The filling sealing-plug for setting closing glue to be formed, further enhancing waterproof sealing effect.
The utility model is that technical scheme is used by solving above-mentioned technical problem：A kind of transformer cable threading hole is prevented
Watertight construction, including symmetrically it is stuck in the sealing ring made of silica gel material at cable aperture both ends on transformer case, sealing ring
The threading hole at middle part and the external diameter of cable is are interference fitted, the filling between two sealing rings to be formed after filling closing gelling admittedly
Sealing-plug.
The both ends of the cable aperture extend out the snap ring to be formed greater diameter than cable bore dia, and sealing ring by bulge and
Portion's two parts are stoppered to form, wherein, the external diameter of bulge is identical with the internal diameter of cable aperture, stoppers the external diameter in portion and the internal diameter of snap ring
Identical, the thickness for stoppering portion is more than the thickness of snap ring.
The arc-shaped recess extended out is provided with the cable aperture, so as to be formed after the closing gelling of filling is solid recessed with this arc
Fall into the protruding ring being engaged.
Helical form depression is distributed with described its internal diameter of cable aperture interior edge.
The material of the transformer case is aluminium alloy.
Beneficial effect：Two sealing rings are made by using silica gel material in the utility model, and cable penetrates the two sealings
After in ring, because both are interference fitted, therefore, cable is penetrated after sealing ring when penetrating again in cable aperture, due to crimp, is made
Obtain and deadend structure is respectively formed between sealing ring and cable aperture and sealing ring and cable, and filled out between two sealing rings
Closing glue is filled, so filling sealing-plug is formed after closing gelling is solid, further enhancing sealing effectiveness, completely cut off water completely
Infiltration.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Reference：1st, transformer case, 101, snap ring, 2, cable, 3, sealing ring, 301, bulge, 302, stopper portion,
4th, sealing-plug is filled.
Embodiment
As illustrated, a kind of transformer cable threading hole waterproof sealing structure, including be symmetrically stuck in electric on transformer case 1
Sealing ring 3 made of silica gel material at cable hole both ends, the threading hole at the middle part of sealing ring 3 are interference fit with the external diameter of cable 2,
The filling sealing-plug 4 formed between two sealing rings 3 for filling closing gelling after solid.
Be basic embodiment of the present utility model above, can more than on the basis of further improved, optimized and limited
It is fixed：
Such as, the both ends of the cable aperture extend out the snap ring 101 to be formed greater diameter than cable bore dia, and sealing ring 3 by
Bulge 301 is formed with the two parts of portion 302 are stoppered, wherein, the external diameter of bulge 301 is identical with the internal diameter of cable aperture, stoppers portion
302 external diameter is identical with the internal diameter of snap ring 101, and the thickness for stoppering portion 302 is more than the thickness of snap ring 101；In bulge 301 and plug
The threading hole of tight 302 centrally disposed insertion of portion, and the external diameter of the internal diameter of threading hole and cable 2 is interference fit, so in cable 2
After penetrating in threading hole, due to crimp so that bulge 301 can be sufficient filling with the gap of cable 2 and cable aperture, Er Qiesai
Thickness of the thickness in tight portion 302 also greater than snap ring 101, so that stoppering portion 302 can also be fitted close with snap ring 101, so as to
Enhance sealing performance；
And for example, the arc-shaped recess 5 extended out is provided with the cable aperture, so that the closing of filling is formed after being gelled admittedly and this
The protruding ring that arc-shaped recess 5 is engaged, the presence of protruding ring, change cable aperture inwall and fill the contact surface between sealing-plug 4,
So as to further enhancing the performance of waterproof sealing；
For another example, described its internal diameter of cable aperture interior edge is distributed with helical form and is recessed, meaning existing for helical form depression, actually
Also for changing cable aperture inwall and filling the contact surface between sealing-plug 4, so as to further enhance the performance of waterproof sealing；
Finally, the material of the transformer case 1 is aluminium alloy.
Construction method of the present utility model is：Cable 2 is placed through first close on the outside of cable aperture on transformer case 1
Seal ring 3, and inside transformer is stretched into after being penetrated cable aperture, then again by transformer case 1 on the inside of cable aperture
Sealing ring 3 is enclosed on cable 2, and the sealing ring 3 is tucked into the inner side of cable aperture, then from the outer lateral cable aperture of cable aperture
Another sealing ring 3 worn on cable 2, is finally tucked into cable aperture by interior injection closing glue again.
Claims (5)
- A kind of 1. transformer cable threading hole waterproof sealing structure, it is characterised in that：Including being symmetrically stuck in transformer case（1）On The sealing ring made of silica gel material at cable aperture both ends（3）, sealing ring（3）The threading hole and cable at middle part（2）External diameter be Interference fit, two sealing rings（3）Between the filling sealing-plug that is formed for filling closing gelling after solid（4）.
- A kind of 2. transformer cable threading hole waterproof sealing structure according to claim 1, it is characterised in that：The cable The both ends in hole extend out the snap ring to be formed greater diameter than cable bore dia（101）, and sealing ring（3）By bulge（301）And plug Tight portion（302）Two parts are formed, wherein, bulge（301）External diameter it is identical with the internal diameter of cable aperture, stopper portion（302）It is outer Footpath and snap ring（101）Internal diameter it is identical, stopper portion（302）Thickness be more than snap ring（101）Thickness.
- A kind of 3. transformer cable threading hole waterproof sealing structure according to claim 1, it is characterised in that：The cable The arc-shaped recess extended out is provided with hole（5）, so as to be formed and this arc-shaped recess after the closing gelling of filling is solid（5）It is engaged Protruding ring.
- A kind of 4. transformer cable threading hole waterproof sealing structure according to claim 1, it is characterised in that：The cable Helical form depression is distributed with interior edge its internal diameter in hole.
- A kind of 5. transformer cable threading hole waterproof sealing structure according to claim 1, it is characterised in that：The transformation Device shell（1）Material be aluminium alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720551515.XU CN207009193U (en) | 2017-05-18 | 2017-05-18 | A kind of transformer cable threading hole waterproof sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720551515.XU CN207009193U (en) | 2017-05-18 | 2017-05-18 | A kind of transformer cable threading hole waterproof sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207009193U true CN207009193U (en) | 2018-02-13 |
Family
ID=61445145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720551515.XU Expired - Fee Related CN207009193U (en) | 2017-05-18 | 2017-05-18 | A kind of transformer cable threading hole waterproof sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207009193U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108963920A (en) * | 2018-07-19 | 2018-12-07 | 芜湖籁余新能源科技有限公司 | A kind of sealing device of submariner device cable penetration pressure hull |
| CN111769510A (en) * | 2020-07-10 | 2020-10-13 | 邵阳学院 | Wire protecting sleeve for motor |
-
2017
- 2017-05-18 CN CN201720551515.XU patent/CN207009193U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108963920A (en) * | 2018-07-19 | 2018-12-07 | 芜湖籁余新能源科技有限公司 | A kind of sealing device of submariner device cable penetration pressure hull |
| CN111769510A (en) * | 2020-07-10 | 2020-10-13 | 邵阳学院 | Wire protecting sleeve for motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180213 Termination date: 20190518 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |