CN103986316A - Mounting structure of power filter - Google Patents
Mounting structure of power filter Download PDFInfo
- Publication number
- CN103986316A CN103986316A CN201410185613.7A CN201410185613A CN103986316A CN 103986316 A CN103986316 A CN 103986316A CN 201410185613 A CN201410185613 A CN 201410185613A CN 103986316 A CN103986316 A CN 103986316A
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- China
- Prior art keywords
- filter
- screen cabinet
- screen
- power
- mounting box
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The invention discloses a mounting structure of a power filter. The mounting structure comprises a filter body, a shielding cabinet, and load arranged in the shielding cabinet. A mounting box used for mounting the filter body is further arranged on the outer side wall of the shielding cabinet, the mounting box comprises a top plate, a bottom plate and side plates connected between the top plate and the bottom plate, the top plate, the bottom plate and the side plates are integrally arranged, the top plate is hinged to the shielding cabinet, a locking device is arranged on the bottom plate, and the mounting plate is fixedly connected with the shielding cabinet through the locking device. The bottom plate is further provided with a wire inlet where an input wire of the filter body can penetrate through, the shielding cabinet is provided with a wire outlet, the filter body is arranged on the bottom plate, an output wire of the filter body penetrates out of the wire outlet and is electrically connected with the load in the shielding cabinet, and a shell of the filter body is electrically connected with the side wall of the shielding cabinet. A sealed type mounting mode through the mounting box is used for replacing an open type mounting mode through welding or screw fixing in the prior art, interpolar coupling interference can be effectively avoided, and the filter can be dismounted, replaced and mounted conveniently and quickly after the mounting box is opened.
Description
Technical field
The present invention relates to a kind of power-supply filter mounting structure.
Background technology
Power-supply filter is the low-pass filtering for electronic equipment power source port, conventionally has the function of two kinds of decay differential mode harassing and wrecking.Differential mode attenuation performance is determined by the transmission characteristic of filter, as long as selection is proper, conventionally than being easier to, reaches; And common mode attenuation performance is relevant with the mode of access device by the mounting means of filter.Power-supply filter extensive use in substation relay protection control appliance, but exist configuration selection and Rig up error to affect its usefulness, and cause short problem in power supply module sensitive for damages useful life.As should be 10 years the service life of a set of electronic installation, parts wherein will be higher than the service life of whole rent device.Yet fragile because of power supply module, being limited service life is only 4 years, this not talkative and power-supply filter inefficiency have some relations.The large disturbing wave of energy, when the effective inhibition that can not get filter, directly intrudes into power module, can cause the damage of power supply module; The less disturbing wave of energy effectively falls time slack what can not get filter, though to be unlikely to be that power module damages, can invade other plug-in units by output port of power source and form and disturb, and affect device and normally works, and even device damages.As can be seen here, guarantee that the correctness of power-supply filter on mounting means is necessary, in prior art, for guaranteeing to be electrically connected to reliably between filter and metallic shield, it is that mode by screw or welding is fixed on casing of filter on metal screen overlay that filter is installed, but this mounting structure causes filter to change very inconvenience of dismounting, and the firm performance of installing is lower.
Summary of the invention
The object of the invention is to overcome deficiency of the prior art, a kind of power-supply filter mounting structure is provided, solved prior art median filter and installed and cause changing the inconvenient technical problem of dismounting by welding or screw fixation method.
The object of the present invention is achieved like this: power-supply filter mounting structure, comprise filter, screen cabinet and the load of being located in screen cabinet, described screen cabinet passes through ground connection, one end of described filter is connected with the input line being electrically connected to power supply apparatus, the other end is connected with the output line being electrically connected to load, on the lateral wall of described screen cabinet, be also provided with the mounting box for installing filter, described mounting box comprises the top board being wholely set, base plate and be connected in top board and base plate between side plate, described top board is hinged with screen cabinet, described base plate is provided with locking device, mounting box is fixedly connected with screen cabinet by locking device, on described base plate, also offer the entrance hole passing for the input line of filter, described screen offers wire hole cashier's office in a shop, filter is located on described base plate, and the output line of filter is electrically connected to the load in being arranged at screen cabinet through wire hole, and the housing of filter is electrically connected to the sidewall of screen cabinet.
Described locking device comprises snap fit and the fastener matching with snap fit, and the base plate of described snap fit and mounting box is wholely set, and described fastener is rotating is connected in screen cashier's office in a shop.In fastener buckle and snap fit, cabinet is relative is fixedly connected with screen to make mounting box.
The side plate of described mounting box is provided with for inwardly pushing the elastomeric pad of filter.During mounting box locking, elastomeric pad is inwardly pushed filter, makes filter and screen cabinet close contact, guarantees the excellent electric contact between filter and screen cabinet.
On the lateral wall that described screen cabinet contacts with filter, be all coated with copper conductive layer.Copper conductive layer electric conductivity is good, makes to shield between cabinet and filter, to keep good electrically contacting.
The output line of described filter and the periphery of input line are respectively installed with anti-interference screen.Anti-interference screen is further isolated input line and output line, avoids interpolar coupled interference.
The anti-interference shielding layer grounding of described input line connects.After anti-interference shielding layer grounding, make disturbance current enter ground through anti-interference screen short circuit, thereby the signal transmission of input line is played to shielding action.
Compared with prior art, the beneficial effect that the present invention reaches: adopt the closed mounting means of mounting box to replace the open mounting means that welds or fix by screw in prior art, the output line of filter and input line effectively can be isolated, avoid interpolar coupled interference; Mounting box is connected in screen cashier's office in a shop rotationally, and it is convenient and swift that opening installation box can carry out dismounting, replacing and the fitting operation of filter.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Wherein, 1, filter; 2, screen cabinet; 3, load; 4, earth connection; 5a, top board; 5b, base plate; 5c, side plate; 6a, snap fit; 6b, fastener; 7, elastomeric pad; The anti-interference screen of 8a, 8b.; 9, copper conductive layer.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.Following examples are only for technical scheme of the present invention is more clearly described, and can not limit the scope of the invention with this.
As shown in Figure 1, power-supply filter mounting structure, comprises filter 1, screen cabinet 2 and is located at the load 3 in screen cabinet 2.Screen cabinet 2 is by earth connection 4 ground connection, and for reducing the earth resistance of filter 1, earth connection 4 is preferably installed near filter 1.The input line of filter 1 is electrically connected to power supply apparatus, and output line is electrically connected to load 3.Mounting box is located on the lateral wall of screen cabinet 2, it comprise top board 5a, the base plate 5b being wholely set and be connected in top board 5a and base plate 5b between side plate 5c: top board 5a is hinged with screen cabinet 2, to guarantee mounting box and screen being rotatably connected of cabinet 2; On base plate 5b, also offer the entrance hole passing for the input line of filter 1, on screen cabinet 2, offer wire hole, it is upper that filter 1 is located at base plate 5b, and output line is electrically connected to the load 3 in being arranged at screen cabinet 2 through the wire hole on screen cabinet 2, and the housing of filter 1 is electrically connected to screen cabinet 2 sidewalls.On the base plate 5b of mounting box, be also provided with locking device, locking device comprises snap fit 6a and the fastener 6b matching with snap fit 6a, the base plate 5b that snap fit 6a is located at mounting box is wholely set, fastener 6a is rotating to be connected on screen cabinet 2, fastener 6a is snapped in snap fit 6a, and cabinet 2 is relative is fixedly connected with screen to make mounting box.The side plate 5c of mounting box is provided with for inwardly pushing the elastomeric pad 7 of filter 1.During mounting box locking, elastomeric pad 7 is inwardly pushed filter 1, makes filter 1 and screen cabinet 2 close contacts, guarantees the excellent electric contact between filter 1 and screen cabinet 2.For guaranteeing good electrically contacting between screen cabinet 2 and filter 1, on the lateral wall that screen cabinet 2 contacts with filter 1, be all coated with copper conductive layer 9.For further avoiding interpolar coupling, the output line periphery of filter 1 is set with anti-interference screen 8a, and input line periphery is set with anti-interference screen 8b, anti-interference screen 8b ground connection.After anti-interference screen 8b ground connection, make disturbance current enter ground through anti-interference screen 8b short circuit, thereby the signal transmission of input line is played to shielding action.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the technology of the present invention principle; can also make some improvement and distortion, these improvement and distortion also should be considered as protection scope of the present invention.
Claims (6)
1. power-supply filter mounting structure, comprise filter, screen cabinet and the load of being located in screen cabinet, described screen cabinet passes through ground connection, one end of described filter is connected with the input line being electrically connected to power supply apparatus, the other end is connected with the output line being electrically connected to load, it is characterized in that, on the lateral wall of described screen cabinet, be also provided with the mounting box for installing filter, described mounting box comprises the top board being wholely set, base plate and be connected in top board and base plate between side plate, described top board is hinged with screen cabinet, described base plate is provided with locking device, mounting box is fixedly connected with screen cabinet by locking device, on described base plate, also offer the entrance hole passing for the input line of filter, described screen offers wire hole cashier's office in a shop, filter is located on described base plate, and the output line of filter is electrically connected to the load in being arranged at screen cabinet through wire hole, and the housing of filter is electrically connected to the sidewall of screen cabinet.
2. power-supply filter mounting structure according to claim 1, is characterized in that, described locking device comprises snap fit and the fastener matching with snap fit, and the base plate of described snap fit and mounting box is wholely set, and described fastener is rotating is connected in screen cashier's office in a shop.
3. power-supply filter mounting structure according to claim 2, is characterized in that, the side plate of described mounting box is provided with for inwardly pushing the elastomeric pad of filter.
4. power-supply filter mounting structure according to claim 3, is characterized in that, on the lateral wall that described screen cabinet contacts with filter, is all coated with copper conductive layer.
5. power-supply filter mounting structure according to claim 4, is characterized in that, the output line of described filter and the periphery of input line are respectively installed with anti-interference screen.
6. power-supply filter mounting structure according to claim 5, is characterized in that, the anti-interference shielding layer grounding of described input line connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410185613.7A CN103986316A (en) | 2014-05-05 | 2014-05-05 | Mounting structure of power filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410185613.7A CN103986316A (en) | 2014-05-05 | 2014-05-05 | Mounting structure of power filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103986316A true CN103986316A (en) | 2014-08-13 |
Family
ID=51278173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410185613.7A Pending CN103986316A (en) | 2014-05-05 | 2014-05-05 | Mounting structure of power filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103986316A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110868168A (en) * | 2019-11-13 | 2020-03-06 | 深圳市凯合达智能设备有限公司 | Filter convenient to dismantle |
| CN113691226A (en) * | 2021-08-24 | 2021-11-23 | 上海埃德电子股份有限公司 | On-line repairing method for power filter with failure of shielding facility |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040074745A1 (en) * | 2002-08-13 | 2004-04-22 | Cosmo Castaldo | Method and apparatus for selectively locking a standard plug to a standard receptacle |
| CN1619930A (en) * | 2003-11-14 | 2005-05-25 | 日立工业设备系统株式会社 | Filter apparatus and power converter to which the filter apparatus is connected |
| CN102158126A (en) * | 2011-04-01 | 2011-08-17 | 浙江师范大学 | Generating set for lamp switches based on hollow piezoelectric transducer |
| CN103546018A (en) * | 2013-11-05 | 2014-01-29 | 深圳市英威腾电气股份有限公司 | Power unit and manufacturing method thereof |
| CN203872045U (en) * | 2014-05-05 | 2014-10-08 | 昆山达功电子有限公司 | Power filter installing structure |
-
2014
- 2014-05-05 CN CN201410185613.7A patent/CN103986316A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040074745A1 (en) * | 2002-08-13 | 2004-04-22 | Cosmo Castaldo | Method and apparatus for selectively locking a standard plug to a standard receptacle |
| CN1619930A (en) * | 2003-11-14 | 2005-05-25 | 日立工业设备系统株式会社 | Filter apparatus and power converter to which the filter apparatus is connected |
| CN102158126A (en) * | 2011-04-01 | 2011-08-17 | 浙江师范大学 | Generating set for lamp switches based on hollow piezoelectric transducer |
| CN103546018A (en) * | 2013-11-05 | 2014-01-29 | 深圳市英威腾电气股份有限公司 | Power unit and manufacturing method thereof |
| CN203872045U (en) * | 2014-05-05 | 2014-10-08 | 昆山达功电子有限公司 | Power filter installing structure |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110868168A (en) * | 2019-11-13 | 2020-03-06 | 深圳市凯合达智能设备有限公司 | Filter convenient to dismantle |
| CN113691226A (en) * | 2021-08-24 | 2021-11-23 | 上海埃德电子股份有限公司 | On-line repairing method for power filter with failure of shielding facility |
| CN113691226B (en) * | 2021-08-24 | 2024-06-14 | 上海埃德电子股份有限公司 | On-line repair method for power filter with failure of shielding facility |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140813 |
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| RJ01 | Rejection of invention patent application after publication |