CN202502873U - Low-voltage large-current output transformer - Google Patents
Low-voltage large-current output transformer Download PDFInfo
- Publication number
- CN202502873U CN202502873U CN2012201481999U CN201220148199U CN202502873U CN 202502873 U CN202502873 U CN 202502873U CN 2012201481999 U CN2012201481999 U CN 2012201481999U CN 201220148199 U CN201220148199 U CN 201220148199U CN 202502873 U CN202502873 U CN 202502873U
- Authority
- CN
- China
- Prior art keywords
- center pillar
- pedestal
- middle column
- transformer
- former limit
- Prior art date
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Coils Of Transformers For General Uses (AREA)
Abstract
The utility model discloses a low-voltage large-current output transformer comprising a primary winding wound on an iron core and a secondary winding wound outside the primary winding. The secondary winding is assembled by a first seat, a second seat and a tubular second middle column. A first middle column and the second middle column can load higher current and heating capacity and is small in self-loss and higher in power due to the surface area of each of a first middle column and the second middle column is large. The second middle column can be applicable to transformers with different windings and is universal to be production in batch. The secondary winding is separated into the first seat, the second seat and the second middle column which are independent to each other, thereby being convenient to manufacture and assemble. Particularly, the second seat and the second middle column which are small in size can be manufactured by offcuts, production cost is reduced, and the number of the secondary windings of the transformer can be increased due to the fact that the second middle column and the first middle column are in a coaxially nesting mounting structure.
Description
Technical field
The utility model relates to a kind of transformer, particularly a kind of low-voltage, big electric current output transformer that is applicable to that industries such as plating, electrolysis are used.
Background technology
In industries such as plating, electrolysis; Need the alternating current of transformer output LOW voltage, big electric current, the secondary of this transformer generally has only several circles, number is " ZL 200610035697.1 " like Chinese patent; The patent document that name is called " a kind of new construction transformer " disclose a kind of can output LOW voltage, the transformer of big electric current; The technical scheme of this transformer adopting is: it comprises the former limit winding that is wrapped on the annular core, and secondary is made up of the left pedestal of mutually insulated, right pedestal, and left pedestal and right pedestal are respectively arranged with relative left groove of opening direction and right groove; Left side groove is divided into left center pillar and left outer seat with left pedestal; Right groove is divided into right center pillar and right outer seat with right pedestal, and left pedestal is with after right pedestal is connected, and left groove and right groove form a cannelure; Former limit winding just is placed in this cannelure, and the shortcoming of this transformer is:
1, the electric current of output is less.As everyone knows, because the existence of kelvin effect, when alternating current during through conductor, electric current will concentrate on conductive surface and flow through, and the left center pillar of above-mentioned patent document, right center pillar surface area are less, cause the output current of this kind transformer also less.
2, because as required, the secondary of transformer usually can change, and the secondary of above-mentioned transformer is by left pedestal and right pedestal, and left center pillar and left outer seat, right center pillar and right outer seat are connected as a single entity, and cause left pedestal and right pedestal not to have versatility.
The utility model content
In order to overcome the deficiency of prior art, the utility model provides a kind of output current big, the transformer that individual parts can be general.
The utility model solves the technical scheme that its technical problem adopted:
A kind of low-voltage and high-current output transformer comprises the former limit winding secondary winding outer with being wrapped in said former limit winding that is wrapped on the iron core, and said secondary winding is assembled by following independently parts.
First pedestal is provided with arc groove, and this arc groove is divided into first secondary and columniform first center pillar with said first pedestal.
Second pedestal is provided with half-cylindrical breach.
Second center pillar of pipe shape, its lower end is fixed in the half-cylindrical breach of said second pedestal through screw.
After said first pedestal and the assembling of second pedestal, first center pillar interts at the die of said second center pillar, and the top of first center pillar exceeds the top of said second center pillar; Formation one is used for the annular containing cavity of ccontaining said former limit winding between the outer wall of said arc groove, half-cylindrical breach and second center pillar; Through the insulating cement isolated insulation, said second center pillar and first center pillar are through insulating cement or gap isolated insulation between said first pedestal and second pedestal; The top of the top of said second center pillar and said first pedestal is through the copper coin electric connection; Draw through copper coin on the top of the top of said second pedestal and said first center pillar becomes the output bus; The periphery of said first center pillar is 32mm to the distance of arc groove and half-cylindrical breach sidewall, can accomplish that output frequency is up to 30kHz.
The bottom of said second center pillar is provided with the annular flange plate that a shape and said containing cavity adapt, and said ring flange is fixed on the bottom of said half-cylindrical breach through screw.
After assembling former limit winding, in said containing cavity, be perfused with the heat conductive insulating fluid sealant.
Be provided with cooling water channel in said first pedestal, second pedestal.
The beneficial effect of the utility model is:
1, first center pillar of the utility model is cylindrical, and second center pillar is the pipe shape, and the surface area of first center pillar, second center pillar is bigger, can bear bigger electric current, and caloric value and own loss are little, can accomplish bigger power.
2, because when changing electric pressure, former limit winding is the limit not, just the secondary winding changes; The size of transformer can not have greatly changed basically, and therefore, second center pillar goes for the transformer of different secondary windings; Have versatility, can realize large batch of production.
3, the secondary winding is divided into first pedestal, second pedestal, three independent sectors of second center pillar, the convenient making and assembling, and particularly the volume of second pedestal, second center pillar is less, can utilize rim charge to make, and reduces production costs.
4, second center pillar, first center pillar adopt the nested mounting structure of concentric, are convenient to expand the secondary winding quantity of transformer.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Fig. 1 is the secondary winding construction sketch map of the utility model;
Fig. 2 is the secondary winding cutaway view of the utility model;
Fig. 3 is the structural representation of second pedestal;
Fig. 4 is the structural representation of first pedestal;
Fig. 5 is the cutaway view of second pedestal;
Fig. 6 is the structural representation of second center pillar.
Embodiment
Referring to figs. 1 through Fig. 6, a kind of low-voltage and high-current output transformer comprises the former limit winding secondary winding outer with being wrapped in said former limit winding that is wrapped on the iron core, and said secondary winding is assembled by following independently parts:
First pedestal is provided with arc groove 9, and this arc groove 9 is divided into first secondary 2 and columniform first center pillar 4 with said first pedestal.
After said first pedestal and the assembling of second pedestal, first center pillar 4 interts at the die of said second center pillar 3, and the top of first center pillar 4 exceeds the top of said second center pillar 3; Constitute between the outer wall of said arc groove 9, half-cylindrical breach 8 and second center pillar 3 one be used for ccontaining said former limit winding annular containing cavity 5; Through the insulating cement isolated insulation, said second center pillar and first center pillar are through insulating cement or gap isolated insulation between said first pedestal and second pedestal; The top of the top of said second center pillar and said first pedestal is through the copper coin electric connection; Draw through copper coin on the top of the top of said second pedestal and said first center pillar becomes the output bus; First pedestal and second pedestal are provided with some screws 7, and copper coin is just fixed through the screw that is installed in the screw 7.
First center pillar of the utility model is cylindrical, and second center pillar is the pipe shape, and the surface area of first center pillar, second center pillar is bigger, can bear bigger electric current, and caloric value and own loss are little, can accomplish bigger power.
The secondary winding is divided into first pedestal, second pedestal, three independent sectors of second center pillar; Can adopt method for turning processing, also can adopt injection moulding or powder metallurgy process to make, the convenient making and assembling; Particularly the volume of second pedestal, second center pillar is less; In turning process, can utilize rim charge to make, reduce production costs.
First secondary 2 constitutes the first circle secondary winding with columniform first center pillar 4; Second pedestal 1 and second center pillar 3 constitute the second circle secondary winding; The different name end of two windings connects through copper coin; Then, the free end of the free end of the first circle secondary winding and the second circle secondary winding is drawn through copper coin, just forms the bus of secondary winding.Change the output voltage of transformer if desired, under the situation that former limit winding remains unchanged, can be through changing the number of turn of secondary winding; Promptly change no-load voltage ratio and realize, in like manner, except that the secondary winding at two ends; The different name end of all secondary windings once links to each other and forms open circuit; Then the free end of the secondary winding at two ends is drawn through copper coin and get final product, the periphery of said first center pillar 4 is 32mm to the distance of arc groove 9 and half-cylindrical breach 8 sidewalls, can accomplish that output frequency is up to 30kHz; The height of first center pillar 4 is 63mm, and the benefit of this design is to accomplish that voltage output reaches more than the 60V.
Second center pillar, first center pillar adopt the nested installation method of concentric, are convenient to expand the secondary winding quantity of transformer.
Because when changing electric pressure, former limit winding is the limit not, just the secondary winding changes; The size of transformer can not have greatly changed basically, and therefore, second center pillar goes for the transformer of different secondary windings; Have versatility, can realize large batch of production, as make the transformer of 4 circle secondary windings; Second center pillar is constant, and in other three center pillars, two center pillars adopt tubular structure; Middle one is adopted column structure, and other three center pillars of assembling back adopt concentric modes to be nested in the second center pillar die and get final product.
The bottom of said second center pillar 3 is provided with the annular flange plate 11 that a shape and said containing cavity adapt, and said ring flange 11 is fixed on the bottom of said half-cylindrical breach 8 through screw, make the fixed structure of second center pillar 3 reliable, firmly, convenient.
For strengthening heat conduction and protecting former limit winding, assemble former limit winding after, 5 are perfused with the heat conductive insulating fluid sealant in said containing cavity; Sealing glue plays the effect of transmitting heat on the one hand; Help the rapid conduction of heat and distribute, on the other hand, the heat conductive insulating fluid sealant wraps up former limit winding; Form isolated protective layer; Former limit winding can not contacted with air, guarantee that former limit winding can not corrode by airborne dioxygen oxidation or by other corrosive substance in the air, prolongs the useful life of transformer.
That the type of cooling of transformer has is natural air cooled, air blast cooling, oil cooling, water-cooled etc., and the heat that produces in the transformer work of the utility model is very big, and packed; Natural air cooled, air blast cooling can not be satisfied the needs of cooling; Therefore, the transformer adopting oil cooling of the utility model or the mode of water-cooled are provided with cooling water channel 6 in said first pedestal, second pedestal; This cooling water channel constitutes by on first pedestal, second pedestal, beating the straight hole that crosses; Seal the opening of interlude with plug 10, openings at two ends 6 ' promptly constitutes water inlet end and water side, and the coolant in this cooling water channel can be cooling water, cooling wet goods.
Claims (4)
1. a low-voltage and high-current output transformer comprises the former limit winding secondary winding outer with being wrapped in said former limit winding that is wrapped on the iron core, it is characterized in that said secondary winding is assembled by following independently parts:
First pedestal is provided with arc groove (9), and this arc groove (9) is divided into first secondary (2) and columniform first center pillar (4) with said first pedestal;
Second pedestal (1) is provided with half-cylindrical breach (8);
Second center pillar (3) of pipe shape, its lower end are fixed in the half-cylindrical breach (8) of said second pedestal (1) through screw;
After said first pedestal and the assembling of second pedestal, first center pillar (4) interts at the die of said second center pillar (3), and the top of first center pillar (4) exceeds the top of said second center pillar (3); Formation one is used for the annular containing cavity (5) of ccontaining said former limit winding between the outer wall of said arc groove (9), half-cylindrical breach (8) and second center pillar (3); Through the insulating cement isolated insulation, said second center pillar and first center pillar are through insulating cement or gap isolated insulation between said first pedestal and second pedestal; The top of the top of said second center pillar and said first pedestal is through the copper coin electric connection, and draw through copper coin on the top of the top of said second pedestal and said first center pillar becomes the output bus; The periphery of said first center pillar (4) is 32mm to the distance of arc groove (9) and half-cylindrical breach (8) sidewall, can accomplish that output frequency is up to 30KHz.
2. transformer according to claim 1; The bottom that it is characterized in that said second center pillar (3) is provided with the annular flange plate (11) that a shape and said containing cavity adapt, and said ring flange (11) is fixed on the bottom of said half-cylindrical breach (8) through screw.
3. transformer according to claim 1, it is characterized in that assembling former limit winding after, (5) are perfused with the heat conductive insulating fluid sealant in said containing cavity.
4. transformer according to claim 1 is characterized in that being provided with in said first pedestal, second pedestal cooling water channel (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201481999U CN202502873U (en) | 2012-04-10 | 2012-04-10 | Low-voltage large-current output transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201481999U CN202502873U (en) | 2012-04-10 | 2012-04-10 | Low-voltage large-current output transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202502873U true CN202502873U (en) | 2012-10-24 |
Family
ID=47039481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201481999U Expired - Lifetime CN202502873U (en) | 2012-04-10 | 2012-04-10 | Low-voltage large-current output transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202502873U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102610373A (en) * | 2012-04-10 | 2012-07-25 | 中山市双核电气有限公司 | Low-voltage large-current output transformer |
-
2012
- 2012-04-10 CN CN2012201481999U patent/CN202502873U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102610373A (en) * | 2012-04-10 | 2012-07-25 | 中山市双核电气有限公司 | Low-voltage large-current output transformer |
| CN102610373B (en) * | 2012-04-10 | 2015-03-25 | 中山市誉鸿电力电子有限公司 | Low-voltage large-current output transformer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202067628U (en) | High frequency switch transformer employing shell as low voltage winding | |
| CN202502873U (en) | Low-voltage large-current output transformer | |
| CN203165643U (en) | Large current output transformer | |
| CN2938342Y (en) | Transformer base | |
| CN103366933A (en) | Integrated high-frequency power transformer | |
| CN102610373B (en) | Low-voltage large-current output transformer | |
| CN103854829A (en) | Heat radiation type reactor | |
| CN201904184U (en) | Novel transformer holder | |
| CN203760266U (en) | Iron core radiating structure of electric reactor | |
| CN202134383U (en) | Dual-purpose annular secondary coil of transformer | |
| CN211455494U (en) | Energy-saving oil-immersed distribution transformer | |
| CN104575991A (en) | High frequency water-cooled transformer | |
| CN206758217U (en) | A kind of core for transformer | |
| CN204375547U (en) | A kind of high-frequency water-cooling transformer | |
| CN200941327Y (en) | Novel transformer seat | |
| CN209232549U (en) | A kind of liquid-cooling type high-frequency switch power transformer | |
| CN203366967U (en) | Integrated high-frequency power transformer | |
| CN203950638U (en) | A kind of medium-high frequency induction heating transformer | |
| CN201708012U (en) | Resin-cast rectangular dry-type transformer | |
| CN201425877Y (en) | Medium-high frequency electrostatic dust removal dry-type transformer high-voltage coil | |
| CN2932590Y (en) | Transformer with a novel structure | |
| CN209343919U (en) | A kind of secondary coil structure and its high frequency transformer | |
| CN102938294A (en) | High-frequency power transformer | |
| CN103413654B (en) | Dry type transformer for deepwater | |
| CN101968992A (en) | Railway traction transformer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20121024 Effective date of abandoning: 20150325 |
|
| RGAV | Abandon patent right to avoid regrant |