CN204946685U - The high coupling transformer of a kind of low interference - Google Patents
The high coupling transformer of a kind of low interference Download PDFInfo
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- CN204946685U CN204946685U CN201520703539.3U CN201520703539U CN204946685U CN 204946685 U CN204946685 U CN 204946685U CN 201520703539 U CN201520703539 U CN 201520703539U CN 204946685 U CN204946685 U CN 204946685U
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Abstract
The utility model discloses the high coupling transformer of a kind of low interference, its magnetic core element being provided with base, being fixedly connected with base; Described magnetic core element is provided with toroidal core, the armature winding be wrapped on toroidal core, cover armature winding outer surface and the skeleton be made up of insulating material and being wrapped on skeleton and corresponding armature winding and the secondary winding established.The utility model its have that volume is little, thickness is little, adapt to that wide temperature is large, Electro Magnetic Compatibility good, signal sensitivity and shock-proof advantage.
Description
Technical field
The utility model relates to the high coupling transformer of a kind of low interference.
Background technology
Novel intelligent controls product and just enters various terminal electronic electric product market so that swift and violent growth momentum is comprehensive at present.Because application is more and more extensive, Based Intelligent Control product needed meets the application requirement of various environment, mainly comprises as follows:
1, lightening
Because the lightening trend of electric equipment constantly extends, the space leaving circuit board for is more and more limited, and the space of therefore relevant components and parts is also corresponding limited, if can not realize lightening design, the risk of project failure is just very high.
2, wide temperature applications environment
Due to the development of globalization of trade in commodities, a product is often at each local distribution of the whole world, and the design of product needs the occasion considering various applied environment temperature, as Han Qu and torrid areas, and indoor and outdoors etc.
3, good electromagnetic compatibility
External environment and electrical equipment inside all easily produce high-frequency interferencing signal, if these interference signals seal in control circuit by Telecommunication Transformers, easily send Wrong control instruction or control circuit inefficacy.Therefore, Telecommunication Transformers itself can not produce high coupling, in case interference signal introduced in control circuit to high-frequency interferencing signal.
4, high signal sensitivity
Because the signal in control circuit is all light current small-signal usually, its voltage is very low, and therefore Telecommunication Transformers needs high signal sensitivity, will have high coupling between its primary and secondary winding, effectively to be transmitted by faint small-signal.
5, enough anti-electric shock security protections
Because controller is when people operates, easily and human contact, and the carry electrode of a large-scale control signal can transmit by electricity network, transmitted in civil power and control circuit by Telecommunication Transformers again, therefore the Telecommunication Transformers as function served as bridge must have enough insulation isolating powers, can bear sufficiently high breakdown voltage.
Above requirements, independent one requires to realize very difficulty, but 5 require comprehensively together, and the difficulty of realization is just very large.Because these requirements oppose often, such as should meet the high decoupling calls to communication signal, meet the low decoupling calls to interference signal again.Wide temperature application, particularly the requirement of cryogenic applications makes transformer need enough number of turns to maintain inductance during low temperature, and too much number of winding turns causes the high-frequency coupling between winding unfavorable to suppressing High-frequency Interference to be brought, be also unfavorable for the lightening of transformer simultaneously.And lightening requirement also brings unfavorable challenge to above all the other four realizations required.Also desirable solution is not found that there is in traditional product design scheme.
The main shortcoming of traditional product is as follows:
1, in order to meet the requirement of safe voltage, primary and secondary winding gap ratio is comparatively large, causes small product size large.
2, usually do not use the magnetic core of closed magnetic path, the number of turns is many, and volume is large.
If 3 use the magnetic core of closed magnetic paths, then safe distance does not reach or coupling capacitance between winding causes too greatly antijamming capability weak.
4, in order to reduce coupling capacitance between winding and leakage inductance, have to reduce the number of turns of winding, reduce inductance, result causes product to the insufficient sensitivity of control signal.
5, use common core material, when low temperature-40 is spent, inductance declines too many, cannot meet the requirement of transfer control signal.
If traditionally the design of product, meets the requirements of electric property, the wide x of the long x of its volume is high will reach more than 16x16x20 millimeter, cannot realize miniaturization, lightening.And if want the volume of compressed products, traditional design cannot reach the requirement of electric property, is mainly manifested in:
1, in order to reach the requirement of inductance, need enough number of winding turns, but the volume of product limits winding space.
2, compact due to volume, make the distance between winding very close, coupling capacitance strengthens, and is difficult to meet jamproof requirement.
3, compact due to volume, make the distance between winding very close, the Hi-pot test that meet 4000V becomes very difficult.
Utility model content
Technical problem to be solved in the utility model overcomes the deficiencies in the prior art, provides a kind of low interference high coupling transformer, and it has, and volume is little, thickness is little, adapt to that wide temperature is large, Electro Magnetic Compatibility is good, signal sensitivity and shock-proof advantage.
The technical scheme that the utility model adopts is:
The high coupling transformer of a kind of low interference, its magnetic core element being provided with base, being fixedly connected with base; Described magnetic core element is provided with toroidal core, the armature winding be wrapped on toroidal core, cover armature winding outer surface and the skeleton be made up of insulating material and being wrapped on skeleton and corresponding armature winding and the secondary winding established; Described armature winding is provided with the first terminals and the second terminals, described secondary winding is provided with the 3rd terminals and the 4th terminals, described base is provided with four metal pins, the 4th metal pins being respectively the first metal pins be fixedly connected with the first terminals, the second metal pins be fixedly connected with the second terminals, the 3rd metal pins be fixedly connected with the 3rd terminals and being fixedly connected with the 4th terminals.
Described armature winding is by the armature winding of the first copper wire winding, and this first copper cash outside is provided with one deck is wrapped up in the first insulating barrier made by high-temperature insulation enamel-cover; Described secondary winding is by the secondary winding of the second copper wire winding, and this second copper cash outside is provided with one deck is wrapped up in the second insulating barrier made by high-temperature insulation enamel-cover.
Described base is provided with hard-wired first installing hole of cooperation first metal pins, coordinates hard-wired second installing hole of the second metal pins, coordinates hard-wired 3rd installing hole of the 3rd metal pins and coordinate hard-wired 4th installing hole of the 4th metal pins; Described base is provided with the first groove that cooperation first terminals cabling prevents from being pressed down, the second groove coordinating the second terminals cabling to prevent from being pressed down, the 3rd groove coordinating the 3rd terminals cabling to prevent from being pressed down and coordinates the 4th terminals cabling to prevent the 4th groove be pressed down.
Weld together between described first terminals and the first metal pins, weld together between described second terminals and the second metal pins, weld together between described 3rd terminals and the 3rd metal pins, weld together between described 4th terminals and the 4th metal pins; Described first metal pins, the second metal pins, the 3rd metal pins and the 4th metal pins are all on the bottom surface of base, and every two the adjacent metal pins interval safe distance distributions of described first metal pins, the second metal pins, the 3rd metal pins and the 4th metal pins.
Described base is provided with lid, and described lid and base engagement form box, and described lid is connected by buckle structure with between base; Described base is provided with and coordinates the hard-wired circular depressed position of magnetic core element.
Described toroidal core is the toroidal core be made up of high magnetic conductive material, warm wide magnetic material combination in any.
Described toroidal core thickness is less than described toroidal core outward flange diameter.
As preferably, described toroidal core thickness is 2.78mm.
As preferably, described box height is less than 6.7mm, and described cassette length is less than 9.5mm, and described box width is less than 9.5mm.
The utility model has that volume is little, thickness is little, adapt to that wide temperature is large, Electro Magnetic Compatibility good, signal sensitivity and shock-proof advantage.
Accompanying drawing explanation
Fig. 1 is the utility model perspective view;
Fig. 2 is the utility model broken section structural representation.
In figure: 1, base; 2, magnetic core element; 11, the first metal pins; 12, the first groove; 13, the second metal pins; 14, the second groove; 15, the 3rd metal pins; 16, the 3rd groove; 17, the 4th metal pins; 18, the 4th groove; 21, armature winding; 22, skeleton; 23, secondary winding.
Embodiment
As depicted in figs. 1 and 2, the high coupling transformer of a kind of low interference of the utility model, its magnetic core element 2 being provided with base 1, being fixedly connected with base; Described magnetic core element 2 is provided with toroidal core, the armature winding 21 be wrapped on toroidal core, cover armature winding outer surface and the skeleton 22 be made up of insulating material and being wrapped on skeleton 22 and corresponding armature winding 21 and the secondary winding 23 established; Described armature winding 21 is provided with the first terminals and the second terminals, described secondary winding 23 is provided with the 3rd terminals and the 4th terminals, described base 1 is provided with four metal pins, the 4th metal pins 17 being respectively the first metal pins 11 be fixedly connected with the first terminals, the second metal pins 13 be fixedly connected with the second terminals, the 3rd metal pins 15 be fixedly connected with the 3rd terminals and being fixedly connected with the 4th terminals.
Further, described armature winding 21 is by the armature winding 21 of the first copper wire winding, and this first copper cash outside is provided with one deck is wrapped up in the first insulating barrier made by high-temperature insulation enamel-cover; Described secondary winding 23 is by the secondary winding 23 of the second copper wire winding, and this second copper cash outside is provided with one deck is wrapped up in the second insulating barrier made by high-temperature insulation enamel-cover.
Further, described base 1 is provided with hard-wired first installing hole of cooperation first metal pins 11, coordinates hard-wired second installing hole of the second metal pins 13, coordinates hard-wired 3rd installing hole of the 3rd metal pins 15 and coordinate hard-wired 4th installing hole of the 4th metal pins 17; Described base 1 is provided with the first groove 12 that cooperation first terminals cabling prevents from being pressed down, the second groove 14 coordinating the second terminals cabling to prevent from being pressed down, the 3rd groove 16 coordinating the 3rd terminals cabling to prevent from being pressed down and coordinates the 4th terminals cabling to prevent the 4th groove 18 be pressed down.
Further, weld together between described first terminals and the first metal pins 11, weld together between described second terminals and the second metal pins 13, weld together between described 3rd terminals and the 3rd metal pins 15, weld together between described 4th terminals and the 4th metal pins 17; Described first metal pins 11, second metal pins 13, the 3rd metal pins 15 and the 4th metal pins 17 4 are all on the bottom surface of base, and every two the adjacent metal pins interval safe distance distributions of described first metal pins 11, second metal pins 13, the 3rd metal pins 15 and the 4th metal pins 17.
As preferably, described base 1 is provided with lid, described lid coordinates with base 1 and forms box, is connected between described lid with base 1 by buckle structure; Described base 1 is provided with and coordinates the hard-wired circular depressed position of magnetic core element 2.
As preferably, described toroidal core is the toroidal core be made up of high magnetic conductive material, warm wide magnetic material combination in any.
Further, described toroidal core thickness is less than described toroidal core outward flange diameter.
As preferably, described toroidal core thickness is 2.78mm.
As preferably, described box height is less than 6.7mm, and described cassette length is less than 9.5mm, and described box width is less than 9.5mm.
The utility model can reduce transformer installing space area on PCB, reduces element heights, meets the lightening requirement of Based Intelligent Control device, saves printed substrate cost simultaneously.The utility model has abandoned traditional embedding design in insulating Design, and because Embedding Material usually causes environmental pollution in production process, transport and use procedure, and utility model avoids the use of Embedding Material, thus contributes for environmental protection.Simultaneously the utility model and owing to not using Embedding Material, avoids Embedding Material and produces to Transformer Winding the potential risk destroyed owing to expanding with heat and contract with cold in Long-Time Service process, thus have higher reliability.The utility model adopts the isolated design of primary and secondary winding, can bear very high breakdown voltage, safe and reliable.The utility model has good antijamming capability, electrical network interference signal can be prevented to be transmitted to control circuit by Telecommunication Transformers and cause misoperation or control malfunctioning.Box design can be become surface-adhered type or direct insertion by the utility model easily, and mounting means is flexible.Telecommunication Transformers is the critical elements of intelligent control circuit, is also the element that volume is larger, and traditional design is when keeping equal performance, and volume height is all comparatively large, often becomes the bottleneck that product is lightening.The utility model makes the lightening easy realization of intelligent controller, thus accelerates lightening intelligent controller and come into the market, and promotes the accelerated development of new intelligent controller related industry chain, contributes for accelerating China's Smart Home product introduction world market.
The armature winding of described magnetic core element or secondary winding are around on the toroidal core of a closed magnetic path, and among the skeleton that then loading insulating material is made, the outside of this skeleton stayed by the lead-in wire of armature winding.Secondary winding is around on this skeleton.Primary and secondary winding is isolated by the insulating material that thickness is suitable, and this isolated design realizes two large functions: 1, make bear larger breakdown voltage between primary and secondary, realize Secure isolation.2, by the thickness of this isolated material of accurate adjustment, make the coupling capacitance between primary and secondary winding and leakage inductance control to suitable scope, be transmitted to control circuit with the high-frequency interferencing signal reduced in electrical network from described Telecommunication Transformers.By the coiling distributed architecture of adjustment primary and secondary winding, make the coupling capacitance between primary and secondary winding and leakage inductance control to suitable scope, be transmitted to control circuit with the high-frequency interferencing signal reduced in electrical network from described Telecommunication Transformers.Described magnetic core element adopts high magnetic conductive material, thus keeps high sensitivity to faint control signal.Described magnetic core element adopts wide temperature magnetic material, makes the temperature limit of product can be extended to-40 degree.The Magnetic Core Design of described magnetic core element is the magnetic core of closed magnetic path, and the magnetic permeability of magnetic material is fully used, pitch of the laps number less of can trying one's best under the prerequisite meeting inductance value like this.The metallic pin of described magnetic core element and the connected mode of printed substrate can be direct insertion also can be SMD, thus facilitates that this use is novel is arranged on printed substrate.
The utility model has that volume is little, thickness is little, adapt to that wide temperature is large, Electro Magnetic Compatibility good, signal sensitivity and shock-proof advantage.
Claims (9)
1. the high coupling transformer of low interference, is characterized in that: the magnetic core element (2) be provided with base (1), being fixedly connected with base (1); Described magnetic core element (2) is provided with toroidal core, the armature winding (21) be wrapped on toroidal core, cover armature winding (21) outer surface and the skeleton (22) be made up of insulating material and the secondary winding (23) being wrapped in the upper and corresponding armature winding (21) of skeleton (22) and establishing; Described armature winding (21) is provided with the first terminals and the second terminals, described secondary winding (23) is provided with the 3rd terminals and the 4th terminals, described base (1) is provided with four metal pins, the 4th metal pins (17) being respectively the first metal pins (11) be fixedly connected with the first terminals, the second metal pins (13) be fixedly connected with the second terminals, the 3rd metal pins (15) be fixedly connected with the 3rd terminals and being fixedly connected with the 4th terminals.
2. the high coupling transformer of the low interference of one according to claim 1, it is characterized in that: described armature winding (21) is by the armature winding (21) of the first copper wire winding, and this first copper cash outside is provided with one deck is wrapped up in the first insulating barrier made by high-temperature insulation enamel-cover; Described secondary winding is by the secondary winding of the second copper wire winding, and this second copper cash outside is provided with one deck is wrapped up in the second insulating barrier made by high-temperature insulation enamel-cover.
3. the high coupling transformer of the low interference of one according to claim 1, is characterized in that: described base (1) is provided with hard-wired first installing hole of cooperation first metal pins (11), coordinates hard-wired second installing hole of the second metal pins (13), coordinates hard-wired 3rd installing hole of the 3rd metal pins (15) and coordinate hard-wired 4th installing hole of the 4th metal pins (17); Described base (1) is provided with the first groove (12) that cooperation first terminals cabling prevents from being pressed down, the second groove (14) coordinating the second terminals cabling to prevent from being pressed down, the 3rd groove (16) coordinating the 3rd terminals cabling to prevent from being pressed down and coordinates the 4th terminals cabling to prevent the 4th groove (18) be pressed down.
4. the high coupling transformer of the low interference of one according to claim 1, it is characterized in that: weld together between described first terminals and the first metal pins (11), weld together between described second terminals and the second metal pins (13), weld together between described 3rd terminals and the 3rd metal pins (15), weld together between described 4th terminals and the 4th metal pins (17); Described first metal pins (11), the second metal pins (13), the 3rd metal pins (15) and the 4th metal pins (17) four are all on the bottom surface of base (1), and every two the adjacent metal pins interval safe distance distributions of described first metal pins (11), the second metal pins (13), the 3rd metal pins (15) and the 4th metal pins (17).
5. the high coupling transformer of the low interference of one according to claim 1, is characterized in that: (1) is provided with lid to described base, and described lid coordinates with base (1) and forms box, is connected between described lid with base (1) by buckle structure; Described base (1) is provided with and coordinates magnetic core element (2) hard-wired circular depressed position.
6. the high coupling transformer of the low interference of one according to claim 1, is characterized in that: described toroidal core is the toroidal core be made up of high magnetic conductive material, warm wide magnetic material combination in any.
7. the high coupling transformer of the low interference of one according to claim 1, is characterized in that: described toroidal core thickness is less than described toroidal core outward flange diameter.
8. the high coupling transformer of the low interference of one according to claim 1, is characterized in that: described toroidal core thickness is 2.78mm.
9. the high coupling transformer of the low interference of one according to claim 5, it is characterized in that: described box height is less than 6.7mm, described cassette length is less than 9.5mm, and described box width is less than 9.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520703539.3U CN204946685U (en) | 2015-09-11 | 2015-09-11 | The high coupling transformer of a kind of low interference |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520703539.3U CN204946685U (en) | 2015-09-11 | 2015-09-11 | The high coupling transformer of a kind of low interference |
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| Publication Number | Publication Date |
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| CN204946685U true CN204946685U (en) | 2016-01-06 |
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| CN201520703539.3U Active CN204946685U (en) | 2015-09-11 | 2015-09-11 | The high coupling transformer of a kind of low interference |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105655122A (en) * | 2016-04-19 | 2016-06-08 | 青州市宝利电子有限公司 | Manufacturing method capable of increasing safe distance of magnet ring power transformer and magnet ring power transformer |
-
2015
- 2015-09-11 CN CN201520703539.3U patent/CN204946685U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105655122A (en) * | 2016-04-19 | 2016-06-08 | 青州市宝利电子有限公司 | Manufacturing method capable of increasing safe distance of magnet ring power transformer and magnet ring power transformer |
| CN105655122B (en) * | 2016-04-19 | 2017-06-16 | 青州市宝利电子有限公司 | A kind of magnet ring power transformer manufacture method and magnet ring power transformer for lifting safe distance |
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