CN215222006U - High-voltage power supply - Google Patents
High-voltage power supply Download PDFInfo
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- CN215222006U CN215222006U CN202121340518.1U CN202121340518U CN215222006U CN 215222006 U CN215222006 U CN 215222006U CN 202121340518 U CN202121340518 U CN 202121340518U CN 215222006 U CN215222006 U CN 215222006U
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Abstract
The utility model belongs to the technical field of power supply unit's technique and specifically relates to a high voltage power supply is related to, and it includes power shell and power lid, the power shell is inside cavity and upper end open-ended structure, the power lid can be covered and establish power shell upper end opening part, the protruding edge that power shell upper end opening part fixedly connected with level extends outwards, protruding edge upper surface is provided with the rubber pad, be provided with a plurality of fastening screw between the border of power lid and the protruding edge, it is a plurality of fastening screw sets up along the protruding equidistance in annular, and fastening screw threaded connection is on power lid and protruding edge. This application has the effect of improving the poor problem of sealed effect between high voltage power shell and the power lid.
Description
Technical Field
The application relates to the technical field of power supply equipment, in particular to a high-voltage power supply.
Background
At present, with the rapid development of modern power electronic technology and microelectronic technology, high-voltage power supplies are continuously developed, which refer to high-voltage generators mainly used in insulation and leakage detection, adopt high-frequency voltage doubling circuits, apply the latest PWM high-frequency pulse width modulation technology, adjust in a closed loop manner, and adopt large voltage feedback, so that the voltage stability is greatly improved, and the high-voltage power supplies are widely used in alternating-current withstand voltage tests of cables, rotating motors and power capacitors.
For a high-voltage power supply used in an airplane, the common use environment is a ten thousand meters high altitude, the high-voltage power supply needs to bear atmospheric pressure and an ultralow temperature state in the high altitude environment, and in order to ensure that the high-voltage power supply can normally work under the condition, the sealing structure of the high-voltage power supply needs to be effectively improved, so that the high-voltage power supply is prevented from being out of order in the use process.
The connection of the casing of current high voltage power supply leakproofness is poor, lacks waterproof construction, in moist service environment, very easily permeates moisture, leads to its life to shorten greatly.
SUMMERY OF THE UTILITY MODEL
In order to improve the poor problem of sealed effect between high voltage power shell and the power lid, this application provides a high voltage power supply.
The application provides a high voltage power supply adopts following technical scheme:
the utility model provides a high voltage power supply, includes power shell and power lid, the power shell is inside cavity and upper end open-ended structure, the power lid can be covered and establish power shell upper end opening part, the protruding edge that power shell upper end opening part fixedly connected with level extended outward, protruding edge upper surface is provided with the rubber pad, be provided with a plurality of fastening screw between the border of power lid and the protruding edge, it is a plurality of fastening screw sets up along the protruding equidistance of following the annular, and fastening screw threaded connection is on power lid and protruding edge.
Through adopting above-mentioned technical scheme, this application sets up the rubber pad between power lid and protruding edge, after power lid is covered on the power shell, screw up the fastening screw who sets up at power shell and power lid, at the in-process of screwing up fastening screw, the rubber pad between power lid and the protruding edge is extrudeed, thereby seal the gap between power shell and the power lid, it is inside to avoid the outside water and the impurity of high voltage power supply to enter into the power shell, and the inside normal atmospheric pressure that is in of power shell can be guaranteed to the rubber pad and the fastening screw that set up, when avoiding high voltage power supply to use in the high altitude, the electrical components of power shell inside is under high-pressure state, cause electrical components's damage easily.
Optionally, protruding along upper surface fixedly connected with annular first sealing strip, the cross section of first sealing strip is trapezoidal set up the first seal groove of mutually supporting with first sealing strip on the closing cap, first sealing strip is pegged graft in first seal groove.
Through adopting above-mentioned technical scheme, the first sealing strip and the first seal groove that this application set up, after the power lid was on the power shell, first sealing strip can peg graft in first seal groove to seal the gap between power lid and the power shell, prevent that outside impurity from entering into inside the power shell.
Optionally, an annular first waterproof strip is arranged on the inner surface of the first sealing groove, and the first sealing strip can be abutted against the first waterproof strip.
Through adopting above-mentioned technical scheme, the first waterproof strip of setting can play the effect of first protection, and after power lid was covered on the power shell, first waterproof strip can be extruded to first sealing strip, makes in first waterproof strip can fill up first seal groove, and the at utmost avoids outside moisture to enter into inside the power shell.
Optionally, the power cover is towards the annular second sealing strip of fixedly connected with on the surface on protruding edge, the cross section of second sealing strip is trapezoidal, protruding edge is last seted up with second sealing strip complex second seal groove, the second sealing strip is pegged graft in the second seal groove, and the second sealing strip is located the inboard of first sealing strip.
Through adopting above-mentioned technical scheme, the second sealing strip and the second seal groove that this application set up, after the power lid was on the power shell, the second sealing strip can be pegged graft in the second seal groove to carry out the secondary to the gap between power lid and the power shell and seal, play the effect of secondary protection, prevent effectively that the outside impurity of power shell and moisture from entering into inside the power shell.
Optionally, an annular second waterproof strip is arranged on the inner surface of the second sealing groove, and the second sealing strip can abut against the second waterproof strip.
Through adopting above-mentioned technical scheme, the waterproof strip of second that sets up can play the effect that the second was said and is protected, after power lid was covered on the power shell, the waterproof strip of second can be extruded to the second sealing strip, makes the waterproof strip of second can fill up in the second seal groove to after first waterproof strip uses ageing for a long time, inside the waterproof strip of second can avoid outside moisture and impurity to enter into the power shell, influence the normal operating of the inside electrical components of power shell.
Optionally, the power cover is fixedly connected with an annular sealing plate, the sealing plate is inserted into the power shell, and the sealing plate is attached to the inner wall of the power shell.
Through adopting above-mentioned technical scheme, the closing plate that this application set up, on the one hand, when the in-process of power lid on the power shell, the staff can be very convenient and fast pegs graft the closing plate on the power shell, makes the inner wall laminating of closing plate and power shell to can play the effect of location, make the grafting that first sealing strip and second sealing strip can be accurate in first seal groove and second seal groove, on the other hand, the closing plate can play the guard action of third.
Optionally, a plurality of waterproof rings are arranged on the surface of the sealing plate facing the inner wall of the power supply shell, the waterproof rings are arranged at equal intervals along the length direction of the sealing plate, and waterproof grooves matched with the waterproof rings are formed in the inner wall of the power supply shell.
Through adopting above-mentioned technical scheme, set up the waterproof ring on the closing plate and set up the waterproof groove on the power shell inner wall, waterproof ring and waterproof groove use of mutually supporting has increased the leakproofness between power lid and the power shell, and when high voltage power supply used in the high altitude, closing plate and waterproof ring can guarantee that the inside atmospheric pressure of power shell is in the within range of electrical components normal work, have avoided electrical components's damage.
In summary, the present application includes at least one of the following beneficial technical effects:
1. according to the rubber pad arranged between the power supply cover and the convex edge, after the power supply cover is covered on the power supply shell, the fastening screws arranged on the power supply shell and the power supply cover are screwed, in the process of screwing the fastening screws, the rubber pad between the power supply cover and the convex edge is extruded, so that a gap between the power supply shell and the power supply cover is sealed, water and impurities outside the high-voltage power supply are prevented from entering the power supply shell, the arranged rubber pad and the fastening screws can ensure that the inside of the power supply shell is at normal atmospheric pressure, and when the high-voltage power supply is used at high altitude, electrical elements inside the power supply shell are prevented from being damaged easily due to the fact that the electrical elements are in a high-voltage state;
2. according to the first sealing strip and the first sealing groove, after the power supply cover is covered on the power supply shell, the first sealing strip can be inserted into the first sealing groove, so that a gap between the power supply cover and the power supply shell is sealed, and external impurities are prevented from entering the power supply shell; the second sealing strip and the second sealing groove that this application set up, after the power lid was on the power shell, the second sealing strip can be pegged graft in the second sealing groove to carry out the secondary seal to the gap between power lid and the power shell, play the effect of secondary protection, prevent effectively that the outside impurity of power shell and moisture from entering into inside the power shell.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;
FIG. 2 is a schematic view of an embodiment of the present application embodying a seal configuration;
fig. 3 is an enlarged schematic view at a in fig. 2.
Description of reference numerals: 1. a power supply housing; 11. a convex edge; 12. a first seal strip; 13. a second seal groove; 2. a power supply cover; 21. a second seal strip; 22. a first seal groove; 3. fastening screws; 4. a rubber pad; 5. a first waterproof strip; 6. a second waterproof strip; 7. a sealing plate; 8. and (4) a waterproof ring.
Detailed Description
The present application is described in further detail below with reference to figures 1-3.
The embodiment of the application discloses a high-voltage power supply. Referring to fig. 1, high voltage power supply is including being the power shell 1 of rectangle and level setting, power shell 1 is inside cavity and upper end open-ended structure, it is equipped with power lid 2 to cover at power shell 1 upper end opening part, border fixedly connected with annular protruding edge 11 at power shell 1 upper end opening part, protruding outside extension of 11 levels of edge, after power lid 2 covers on power shell 1, power lid 2 can compress tightly on protruding edge 11, and be provided with a plurality of fastening screw 3 on power lid 2 and chimb, a plurality of fastening screw 3 are annular equidistance along the border of power lid 2 and distribute, fastening screw 3 is vertical to pass the border and the chimb of power lid 2, and fastening screw 3 and power lid 2 and the equal threaded connection of chimb, fastening screw 3 of setting can be with power lid 2 firm and zonulae occludens on power shell 1.
Referring to fig. 1, fig. 2 and fig. 3, be provided with rubber pad 4 with both laminating between protruding edge 11 and power cover 2, when power cover 2 screwed up power shell 1 through fastening screw 3 on, power cover 2 can extrude rubber pad 4 to seal and fill the gap between power cover 2 and power shell 1, avoid outside water and the impurity of high voltage power supply to enter into inside power shell 1, and the inside normal atmospheric pressure that is in of power shell 1 can be guaranteed to rubber pad 4 and the fastening screw 3 that set up, when avoiding high voltage power supply to use in the high altitude, the electrical components of power shell 1 inside is under high pressure, cause electrical components's damage easily.
An annular first sealing strip 12 is fixedly connected to the upper surface of the convex edge 11, an annular second sealing strip 21 is fixedly connected to the surface of the power cover 2 facing the convex edge 11, the cross sections of the first sealing strip 12 and the second sealing strip 21 are both trapezoidal, the second sealing strip 21 is inverted trapezoidal, the second sealing strip 21 is positioned on the inner side of the first sealing strip 12, a first sealing groove 22 which is in plug fit with the first sealing strip 12 is formed in the power cover 2, a second sealing groove 13 which is in plug fit with the second sealing strip 21 is formed in the convex edge 11, when the power cover 2 is covered on the power shell 1, the first sealing strip 12 is plugged in the first sealing groove 22, the second sealing strip 21 is plugged in the second sealing groove 13, the first sealing strip 12 and the first sealing groove 22 as well as the second sealing strip 21 and the second sealing groove 13 are arranged, when the power cover 2 is covered on the power shell 1, the first sealing strip 12 can be plugged in the first sealing groove 22, carry out first sealing to the gap between power lid 2 and the power shell 1, prevent that outside impurity from entering into power shell 1 inside, second sealing strip 21 can be pegged graft in second seal groove 13 to carry out the secondary to the gap between power lid 2 and the power shell 1 and seal, play the effect of secondary protection, effectively prevent that the outside impurity of power shell 1 and moisture from entering into inside power shell 1.
Furthermore, a first waterproof strip 5 is fixedly connected to the inner surface of the first sealing groove 22, a second waterproof strip 6 is fixedly connected to the inner surface of the second sealing groove 13, when the power supply cover 2 covers the power supply shell 1, the first waterproof strip 5 can be abutted to the first sealing strip 12, the second waterproof strip 6 can be abutted to the second sealing strip 21, the arranged first waterproof strip 5 can play a role of first protection, when the power supply cover 2 covers the power supply shell 1, the first waterproof strip 5 can be extruded by the first sealing strip 12, the first waterproof strip 5 can be filled in the first sealing groove 22, and external moisture is prevented from entering the power supply shell 1 to the maximum extent; the waterproof strip of second 6 that sets up can play the effect that the second was said and is protected, after power cover 2 lid was on power shell 1, the waterproof strip of second 21 can extrude the waterproof strip of second 6, make the waterproof strip of second 6 can fill up in the second seal groove 13, and after first waterproof strip 5 used ageing for a long time, the waterproof strip of second 6 can avoid outside moisture and impurity to enter into power shell 1 inside, influence the normal operating of the inside electrical components of power shell 1.
Referring to fig. 1, fig. 2 and fig. 3, perpendicular fixedly connected with annular closing plate 7 on the surface of power cover 2 towards power shell 1, the one end that closing plate 7 kept away from power cover 2 is pegged graft inside power shell 1, and closing plate 7 and the laminating of the inner wall of power shell 1, the closing plate 7 of setting, on the one hand, in the in-process of power cover 2 lid on power shell 1, the staff can very convenient and fast peg graft closing plate 7 on power shell 1, make closing plate 7 and the laminating of the inner wall of power shell 1, and can play the effect of location, make pegging graft in first seal groove 22 and second seal groove 13 that first sealing strip 12 and second sealing strip 21 can be accurate, on the other hand, closing plate 7 can play the guard action of third.
Be provided with a plurality of waterproof rings 8 on the surface of closing plate 7 towards power shell 1 inner wall, a plurality of waterproof rings 8 set up along closing plate 7's length direction equidistance, and set up the waterproof groove of mutually supporting with waterproof ring 8 on power shell 1's inner wall, waterproof ring 8 can the joint in the waterproof groove, waterproof ring 8 and waterproof groove's cooperation is used, the leakproofness between power lid 2 and the power shell 1 has been increased, when high voltage power supply uses at the high altitude, closing plate 7 and waterproof ring 8 can guarantee that the inside atmospheric pressure of power shell 1 is in the within range of electrical components normal work, electrical components's damage has been avoided.
The implementation principle of the high-voltage power supply in the embodiment of the application is as follows: the high voltage power supply that this application set up, after power cover 2 lid is on power shell 1, first sealing strip 12 and second sealing strip 21 homoenergetic correspond to peg graft on first seal groove 22 and second seal groove 13, and closing plate 7 can peg graft inside power shell 1 to fill the gap between power cover 2 and power shell 1, guaranteed the leakproofness between power cover 2 and the power shell 1.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (7)
1. A high voltage power supply, characterized by: including power shell (1) and power lid (2), power shell (1) is inside cavity and upper end open-ended structure, power lid (2) can be covered and establish power shell (1) upper end opening part, protruding edge (11) that power shell (1) upper end opening part fixedly connected with level extends outward, protruding edge (11) upper surface is provided with rubber pad (4), the border and the protruding edge (11) of power lid (2) are provided with a plurality of fastening screw (3), and are a plurality of fastening screw (3) are protruding along (11) equidistance setting along the annular, and fastening screw (3) threaded connection is on power lid (2) and protruding edge (11).
2. A high voltage power supply according to claim 1, wherein: protruding edge (11) upper surface fixedly connected with annular first sealing strip (12), the cross section of first sealing strip (12) is trapezoidal set up first seal groove (22) of mutually supporting with first sealing strip (12) on the power cover, peg graft in first seal groove (22) first sealing strip (12).
3. A high voltage power supply according to claim 2, wherein: the inner surface of the first sealing groove (22) is provided with an annular first waterproof strip (5), and the first sealing strip (12) can be abutted to the first waterproof strip (5).
4. A high voltage power supply according to claim 1, wherein: the utility model discloses a power supply cover (2) is protruding along the protruding annular second sealing strip (21) of fixedly connected with on the surface of (11) of orientation, the cross section of second sealing strip (21) is trapezoidal, protruding edge (11) are gone up and are seted up with second sealing strip (21) complex second seal groove (13), second sealing strip (21) are pegged graft in second seal groove (13), and second sealing strip (21) are located the inboard of first sealing strip (12).
5. A high voltage power supply according to claim 4, wherein: an annular second waterproof strip (6) is arranged on the inner surface of the second sealing groove (13), and the second sealing strip (21) can be abutted to the second waterproof strip (6).
6. A high voltage power supply according to claim 1, wherein: the power supply cover (2) is fixedly connected with an annular sealing plate (7), the sealing plate (7) is inserted into the power supply shell (1), and the sealing plate (7) is attached to the inner wall of the power supply shell (1).
7. A high voltage power supply according to claim 6, wherein: the sealing plate (7) is provided with a plurality of waterproof rings (8) on the surface towards the inner wall of the power supply shell (1), and is a plurality of waterproof rings (8) are arranged along the length direction of the sealing plate (7) at equal intervals, and waterproof grooves matched with the waterproof rings (8) are formed in the inner wall of the power supply shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121340518.1U CN215222006U (en) | 2021-06-16 | 2021-06-16 | High-voltage power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121340518.1U CN215222006U (en) | 2021-06-16 | 2021-06-16 | High-voltage power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215222006U true CN215222006U (en) | 2021-12-17 |
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ID=79426081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121340518.1U Active CN215222006U (en) | 2021-06-16 | 2021-06-16 | High-voltage power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215222006U (en) |
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2021
- 2021-06-16 CN CN202121340518.1U patent/CN215222006U/en active Active
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