CN210896929U - Power transformer - Google Patents
Power transformer Download PDFInfo
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- CN210896929U CN210896929U CN201922020508.9U CN201922020508U CN210896929U CN 210896929 U CN210896929 U CN 210896929U CN 201922020508 U CN201922020508 U CN 201922020508U CN 210896929 U CN210896929 U CN 210896929U
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- isolation structure
- insulating isolation
- iron core
- power transformer
- installation base
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Abstract
The utility model relates to a transformer technical field, concretely relates to power transformer, this power transformer, include: the installation base, insulating isolation structure and C shape iron core, the both ends of installation base all are equipped with the fixing bolt hole, C shape iron core through a plurality of fastener install in the installation base, insulating isolation structure connect in the space between C shape iron core, just be equipped with primary winding and lead-out wire and secondary winding and lead-out wire on the insulating isolation structure respectively. When using the installation, the utility model discloses a plurality of fastener replaces original clamping bolt who sets up between installation base and iron core, can avoid causing the interference to the installation that sets up the fixing bolt on the installation base, improves the installation effectiveness.
Description
Technical Field
The utility model relates to a technical field of transformer, concretely relates to power transformer.
Background
The power transformer has the functions of power transmission, voltage transformation and insulation isolation, is used as a main soft magnetic electromagnetic element, and is widely applied to the power supply technology and the power electronic technology; although the structure principle is simple, the voltage transformation can be carried out according to different use occasions (different purposes).
When the power transformer is used and installed, the power transformer is generally firstly fixed in the installation base, then the power transformer is installed at a required position through the installation base, and the power transformer is fixed through the fixing bolts arranged at two ends of the installation base.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model provides a power transformer can effectively avoid setting up the clamping bolt between installation base and iron core in using the installation, causes the interference to the installation that sets up the fixing bolt on the installation base.
Technical scheme (I)
The utility model provides a power transformer, include: the installation base, insulating isolation structure and C shape iron core, the both ends of installation base all are equipped with the fixing bolt hole, C shape iron core through a plurality of fastener install in the installation base, insulating isolation structure connect in the space between C shape iron core, just be equipped with primary winding and lead-out wire and secondary winding and lead-out wire on the insulating isolation structure respectively.
Optionally, the installation base is set to be a U-shaped groove, and the vertical section of the C-shaped iron core is installed in the U-shaped groove.
Optionally, the clamping piece is arranged to be a protrusion, the protrusion is arranged at the opening end of the installation base along the vertical direction, and the clamping piece is used for limiting the C-shaped iron core.
Optionally, the C-shaped iron core is configured as a roll iron core.
Optionally, the insulating isolation structure comprises an inner insulating isolation structure and an outer insulating isolation structure, a gap is formed between the inner insulating isolation structure and the outer insulating isolation structure, an insulating layer is filled in the gap in a sealing mode, and the height of the insulating layer is smaller than that of the insulating isolation structure.
Optionally, the height of the inner layer insulating and isolating structure is the same as the height of the outer layer insulating and isolating structure.
Optionally, the insulating layer is formed by potting epoxy resin.
Optionally, a coil nylon skeleton is arranged in the inner-layer insulation isolation structure, and two ends of the coil nylon skeleton are respectively connected with the C-shaped iron core in a nested manner.
(II) beneficial effect:
compared with the prior art, the utility model, following beneficial effect has:
the utility model provides a power transformer, include: the installation base, insulating isolation structure and C shape iron core, the both ends of installation base all are equipped with the fixing bolt hole, C shape iron core through a plurality of fastener install in the installation base, insulating isolation structure connect in the space between C shape iron core, just be equipped with primary winding and lead-out wire and secondary winding and lead-out wire on the insulating isolation structure respectively. When using the installation, the utility model discloses a plurality of fastener replaces original clamping bolt who sets up between installation base and iron core, can avoid causing the interference to the installation that sets up the fixing bolt on the installation base, improves the installation effectiveness.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained without inventive exercise, wherein:
fig. 1 is a schematic structural diagram of an embodiment of the present invention.
In the figure: 1. installing a base; 2. an insulating isolation structure; 3. an iron core; 4. a primary winding and an outgoing line; 5. a secondary winding and an outgoing line; 6. an inner layer insulation isolation structure; 7. an outer layer insulation isolation structure; 8. an insulating layer; 9. a coil nylon skeleton; 10. fixing bolt holes; 11. a fastener.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The invention will be described in further detail with reference to the following drawings and embodiments:
as shown in fig. 1, the present application discloses a power transformer, including: the installation structure comprises an installation base 1, an insulation isolation structure 2 and a C-shaped iron core 3, wherein fixing bolt holes 10 are formed in two ends of the installation base 1, the C-shaped iron core 3 is installed in the installation base 1 through a plurality of clamping pieces 11, specifically, the installation base 1 is arranged to be a U-shaped groove, and a vertical section of the C-shaped iron core 3 is installed in the U-shaped groove; the clamping piece 11 is arranged to be a bulge, a plurality of bulges are arranged at the opening end of the installation base 1 along the vertical direction, the clamping piece 11 is used for limiting the C-shaped iron core 3, and preferably, in order to ensure uniform stress, the bulges are arranged at equal intervals; the insulating isolation structure 2 is connected in a gap between the C-shaped iron cores 3, wherein a coil nylon framework 9 is arranged in the inner-layer insulating isolation structure 6, two ends of the coil nylon framework 9 are respectively connected with the C-shaped iron cores 3 in a nested manner, a primary winding and leading-out wire 4 and a secondary winding and leading-out wire 5 are respectively arranged on the insulating isolation structure 2, preferably, the primary winding and leading-out wire 4 are a high-voltage winding and leading-out wire, and the secondary winding and leading-out wire 5 are a low-voltage winding and leading-out wire.
When using the installation, install the vertical section of C shape iron core 3 in installation base 1 to carry on spacingly through setting up in the ascending a plurality of fastener 11 of vertical side, so, the utility model discloses a plurality of fastener 11 replaces original clamping bolt who sets up between installation base 1 and iron core 3, can avoid causing the interference to the installation that sets up the fixing bolt on installation base 1, improves the installation effectiveness.
According to an embodiment of the present invention, as shown in fig. 1, the C-shaped iron core 3 is provided as a roll core.
Specifically, roll up the iron core and be formed by iron core 3 incessant, inseparable continuous system of rolling up on the winder, whole structure is seamless to guarantee to roll up the magnetic flux distribution of magnetic circuit each department on the iron core and be even, have multiple advantages such as low noise, low loss and low surface temperature rise, output efficiency can reach more than 90%, and owing to adopt automation equipment coiling, can effectively save artifical manufacturing cost, improve production efficiency, finally improve the productivity.
Preferably, the wound core is designed with a lower current density, e.g., the current density of the wound core is 1A/mm2In the process, the requirements of high-altitude environments on low surface temperature rise of components in photovoltaic and wind power projects can be better met, and specific current density parameters are designed in advance according to using conditions.
According to the utility model discloses an embodiment, as shown in fig. 1, insulating isolation structure 2 includes inlayer insulating isolation structure 6 and outer insulating isolation structure 7, wherein, inlayer insulating isolation structure 6 highly the same with outer insulating isolation structure 7 highly, be equipped with the clearance between inlayer insulating isolation structure 6 and outer insulating isolation structure 7, the embedment has insulating layer 8 in the clearance, it is preferred, insulating layer 8 is formed by the epoxy embedment, certainly can also adopt insulating silica gel to carry out the embedment, insulating layer 8 highly is less than insulating isolation structure 2's height, it is preferred, insulating isolation structure 2 designs into the tubular structure.
Specifically, the inner layer insulating isolation structure 6, the insulating layer 8 and the outer layer insulating isolation structure 7 jointly form a concave structure, the end part of the concave structure is arc-shaped, therefore, an arc-shaped end insulation structure is formed, the creepage distance is effectively increased, the insulation and voltage resistance level of the high-voltage winding is improved under the condition that the appearance structure of the transformer is compact, thereby meeting the strict requirement of high altitude environment on insulation level in photovoltaic and wind power projects, theoretically, the larger the depth of the concave structure is, the larger the creepage distance is, the higher the insulation and voltage resistance level of the high-voltage winding is, therefore, according to the requirement of the using condition, by controlling the amount of the epoxy resin poured into the gap between the inner layer insulating isolation structure 6 and the outer layer insulating isolation structure 7, thereby the height of control insulating layer 8 realizes adjusting the degree of depth of concave structure, finally realizes the regulation to creepage distance.
The embodiments in the present description are all described in a progressive manner, and some of the embodiments are mainly described as different from other embodiments, and the same and similar parts among the embodiments can be referred to each other.
In the description of the present invention, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying importance; the words "bottom" and "top", "inner" and "outer" refer to directions toward and away from, respectively, a particular component geometry.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the communication may be direct, indirect via an intermediate medium, or internal to both elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
The above description is only for the preferred embodiment of the present invention, and should not be construed as limiting the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (8)
1. A power transformer, comprising: installation base (1), insulating isolation structure (2) and C shape iron core (3), the both ends of installation base (1) all are equipped with fixing bolt hole (10), C shape iron core (3) install in through a plurality of fastener (11) in installation base (1), insulating isolation structure (2) connect in the space between C shape iron core (3), just be equipped with primary winding and lead-out wire (4) and secondary winding and lead-out wire (5) on insulating isolation structure (2) respectively.
2. A power transformer according to claim 1, characterized in that said mounting base (1) is provided as a U-shaped slot, and the vertical section of said C-shaped core (3) is mounted in said U-shaped slot.
3. The power transformer according to claim 2, wherein the engaging members (11) are arranged as protrusions, a plurality of the protrusions are arranged at the opening end of the mounting base (1) along the vertical direction, and the engaging members (11) are used for limiting the C-shaped iron core (3).
4. A power transformer according to claim 1, characterized in that said C-core (3) is provided as a wound core.
5. A power transformer according to claim 1, characterized in that the insulating isolation structure (2) comprises an inner insulating isolation structure (6) and an outer insulating isolation structure (7), a gap is provided between the inner insulating isolation structure (6) and the outer insulating isolation structure (7), an insulating layer (8) is encapsulated in the gap, and the height of the insulating layer (8) is less than the height of the insulating isolation structure (2).
6. A power transformer according to claim 5, characterised in that the height of said inner insulating and isolating structure (6) is the same as the height of said outer insulating and isolating structure (7).
7. A power transformer according to claim 6, characterized in that said insulating layer (8) is formed by epoxy potting.
8. A power transformer according to claim 7, characterized in that a coil nylon skeleton (9) is arranged in the inner insulating isolation structure (6), and two ends of the coil nylon skeleton (9) are respectively connected with the C-shaped iron core (3) in a nested manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922020508.9U CN210896929U (en) | 2019-11-20 | 2019-11-20 | Power transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922020508.9U CN210896929U (en) | 2019-11-20 | 2019-11-20 | Power transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210896929U true CN210896929U (en) | 2020-06-30 |
Family
ID=71313243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922020508.9U Active CN210896929U (en) | 2019-11-20 | 2019-11-20 | Power transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210896929U (en) |
-
2019
- 2019-11-20 CN CN201922020508.9U patent/CN210896929U/en active Active
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