CN112447362A

CN112447362A - Dry-type transformer

Info

Publication number: CN112447362A
Application number: CN202011203932.8A
Authority: CN
Inventors: 翟争军; 李磊; 刘进军
Original assignee: Yunnan Chenming Electric Appliance Co ltd
Current assignee: Yunnan Chenming Electric Appliance Co ltd
Priority date: 2020-11-02
Filing date: 2020-11-02
Publication date: 2021-03-05

Abstract

The invention discloses a dry-type transformer which comprises a transformer body and a movable base, wherein a plurality of groups of thermal resistance sensors are uniformly arranged on the surface of the bottom end in the transformer body. According to the invention, the core column, the silica gel rod and the high-permeability silicon steel sheet are adopted, in the using process, the grain-oriented high-permeability silicon steel sheet with small magnetostriction quantity can effectively reduce the noise of the transformer, the core column of the device is designed into a low and thick shape, the core column adopts a single-sheet, seven-step and longitudinal step iron stacking mode, the magnetic flux density distribution at the seam of the iron core corner silicon steel sheet can be obviously improved, the structure adopts a locking fastener and a steel pull plate structure, the vibration in a winding and a structural part is ensured to be zero, the noise can be effectively reduced, the silica gel rod is arranged between the core column and the coil, namely, the noise is reduced by adding noise reduction and buffering between the iron core and the coil, a plurality of devices are mutually matched, the noise of the device is greatly reduced, and the device has the.

Description

Dry-type transformer

Technical Field

The invention relates to the technical field of electrical equipment, in particular to a dry-type transformer.

Background

The dry-type transformer is widely used in places such as local lighting, high-rise buildings, airports, wharf CNC mechanical equipment and the like, and simply speaking, the dry-type transformer is a transformer with an iron core and a winding which are not immersed in insulating oil, the cooling mode is divided into natural air cooling and forced air cooling, when in natural air cooling, the transformer can continuously run for a long time under the rated capacity, and when in forced air cooling, the output capacity of the transformer can be improved by 50 percent, so that the dry-type transformer is suitable for intermittent overload running or emergency accident overload running; because the load loss and the impedance voltage amplification are large during overload and the device is in a non-economic operation state, the device is not required to be in continuous overload operation for a long time.

In the in-service use process, current dry-type transformer can produce huge noise at the use to current dry-type transformer removes not very conveniently, and the radiating effect is relatively poor, can't block the rainwater, causes the device to intake easily in the use, so leads to the device to damage for a long time easily, and the protecting effect is not good, has certain limitation in the in-service use process.

An effective solution to the problems in the related art has not been proposed yet.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the dry-type transformer which has the advantages of good noise reduction effect, convenient movement and good protection effect, thereby solving the problems in the background art.

(II) technical scheme

In order to realize the advantages of good noise reduction effect, convenient movement and good protection effect, the invention adopts the following specific technical scheme:

dry-type transformer, including fuselage body and removal base, a plurality of groups thermal resistance sensor are evenly installed to the inside bottom surface position of fuselage body, the stem is installed at thermal resistance sensor top, the stem periphery is evenly nested has a plurality of groups silica gel stick, silica gel stick periphery is around having high silicon magnetic steel sheet of leading, the fan is installed to the inside top surface both sides fixed symmetry of fuselage body, and the fan is equipped with two sets ofly altogether, and is two sets of it has control mechanism to lie in fuselage body top surface intermediate position fixed mounting between the fan.

Further, the protective housing has been cup jointed to fuselage body periphery, glass door is installed to protective housing both sides surface position symmetry, glass door side surface intermediate position fixed mounting has the handle, the protective housing top intermediate position is fixed with the weather shield.

Furthermore, a ventilation filter screen is arranged in the middle of the top end of the machine body.

Further, the bottom of the machine body is fixedly provided with a movable base, and two sides of the bottom of the movable base are symmetrically provided with anti-skid wheels.

Furthermore, the periphery of the antiskid wheel is wrapped with rubber bulges for preventing the tire from skidding.

Furthermore, the high-permeability silicon steel sheet is composed of a grain-oriented high-permeability silicon steel sheet with a small magnetostriction amount.

Further, the core leg is formed of a core having a low magnetic flux density.

Furthermore, a locking fastener and a steel pull plate structure which ensure zero vibration in the winding and the structural part are arranged at the top end of the core column.

(III) advantageous effects

Compared with the prior art, the invention provides the dry-type transformer, which has the following beneficial effects:

(1) the invention adopts the core column, the silica gel rod and the high-permeability silicon steel sheet, and in the actual use process, the grain-oriented high-permeability silicon steel sheet with small magnetostriction quantity is selected to effectively reduce the noise of the transformer, the core column of the device is designed to be in a short and thick shape, and the core column adopts a single-sheet, seven-step and longitudinal step iron stacking mode, so that the magnetic flux density distribution at the seam of the silicon steel sheets at the corner of the iron core can be obviously improved, and adopts the locking type fastener and the steel draw plate structure in the structure to ensure that the vibration in the winding and the structural part is zero, can reduce the noise effectively, be provided with the silica gel stick between stem and the coil, equal to add amortization and buffering between iron core and coil, also can play the effect of noise reduction, a plurality of devices mutually support, reduction device noise that can maximum amplitude, the device has the advantage that noise reduction effect is good.

(2) According to the invention, the anti-skid wheel, the rain baffle, the ventilation filter screen and the fan are adopted, in the actual use process, the device can be transferred through the anti-skid wheel, convenience, rapidness and humanization are realized, in addition, in the use process of the device, external sundries and rainwater can be shielded through the rain baffle, the whole protection effect can be effectively improved, the ventilation filter screen is arranged in the device, the exchanged gas can be filtered, the influence of external dust on an internal transformer is prevented, the heat dissipation effect of the device can be effectively accelerated through the fan, the device is further protected, and the whole device has the advantages of convenience in movement and good protection effect.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a dry-type transformer according to the present invention;

fig. 2 is a top view of a stem of the present invention;

fig. 3 is a schematic illustration of the results of the fuselage body of the present invention.

In the figure:

1. a body; 2. a thermal resistance sensor; 3. a stem; 4. a silica gel rod; 5. high magnetic permeability silicon steel sheet; 6. a protective shell; 7. a rain shield; 8. a ventilation filter screen; 9. a control mechanism; 10. a fan; 11. a handle; 12. a glass door; 13. moving the base; 14. anti-skid wheels.

Detailed Description

For further explanation of the various embodiments, the drawings which form a part of the disclosure and which are incorporated in and constitute a part of this specification, illustrate embodiments and, together with the description, serve to explain the principles of operation of the embodiments, and to enable others of ordinary skill in the art to understand the various embodiments and advantages of the invention, and, by reference to these figures, reference is made to the accompanying drawings, which are not to scale and wherein like reference numerals generally refer to like elements.

According to an embodiment of the present invention, a dry-type transformer is provided.

Referring to the drawings and the detailed description, as shown in fig. 1-3, the dry-type transformer according to the embodiment of the invention includes a body 1 and a movable base 13, a plurality of groups of thermal resistance sensors 2 are uniformly installed on the surface of the bottom end inside the body 1, a core column 3 is installed on the top of each thermal resistance sensor 2, a plurality of groups of silica gel rods 4 are uniformly nested on the periphery of each core column 3, high-conductivity silicon magnetic steel sheets 5 are wound around the periphery of each silica gel rod 4, two groups of fans 10 are fixedly and symmetrically installed on the two sides of the surface of the top end inside the body 1, and a control mechanism 9 is fixedly installed between the two groups of fans 10 and in the middle of the surface of the top end of the body 1.

In one embodiment, the protective housing 6 is sleeved on the periphery of the machine body 1, the glass doors 12 are symmetrically arranged on the two side surfaces of the protective housing 6, the handle 11 is fixedly arranged on the middle position of one side surface of each glass door 12, the rain baffle 7 is fixed on the middle position of the top end of the protective housing 6, the rain baffle 7 can shield external sundries and rainwater, and the protective device can be effective and can improve the overall protective effect.

In one embodiment, a ventilation filter 8 is disposed at a middle position inside the top end of the machine body 1, and the ventilation filter 8 can filter exchanged gas to prevent external dust from affecting the internal transformer.

In one embodiment, the bottom of the body 1 is fixedly provided with a movable base 13, the two sides of the bottom of the movable base 13 are symmetrically provided with anti-skid wheels 14, and the anti-skid wheels 14 can transport the whole device quickly, so that the device has the advantage of convenient movement.

In one embodiment, the anti-skid wheel 14 is wrapped with rubber bumps that prevent the tire from slipping, and the rubber bumps can prevent the anti-skid wheel 14 from slipping, thereby increasing the stability of transportation.

In one embodiment, the high-permeability silicon steel sheet 5 is composed of the grain-oriented high-permeability silicon steel sheet 5 with a small magnetostriction amount, and the magnetic flux density is selected to be low, so that an interval with a large magnetostriction amount of the high-permeability silicon steel sheet 5 can be fully avoided, and the effect of reducing noise is achieved.

In one embodiment, the core column 2 is formed of a core having a low magnetic flux density, the magnetic flux density is reduced, the amount of magnetostriction is reduced, and noise can be reduced.

In one embodiment, the top end of the core column 2 is provided with a locking fastener and a steel pulling plate structure which ensure zero vibration in the winding and the structural member, and the novel steel pulling plate is adopted, so that the core column 2 can be tightened, the bending and the contraction of the core column are avoided, and the effect of reducing noise is achieved.

The working principle is as follows: in the actual use process, the device can be transferred through the anti-skid wheels 14, the device is convenient, quick and very humanized, in the use process of the device, foreign matters and rainwater can be shielded through the rain baffle 7, the device can be effectively protected, the integral protection effect is improved, the air exchange filter screen 8 is arranged in the device, exchanged gas can be filtered, the influence of external dust on an internal transformer is prevented, the heat dissipation effect of the device can be effectively accelerated through the fan 10, the device is further protected, the device has the advantages of convenient movement and good protection effect, in the use process, the device adopts a plurality of modes to be combined to reduce the integral noise, for example, the crystal grain oriented high-permeability silicon steel sheet 5 with small magnetostriction quantity can effectively reduce the noise of the transformer, and the core 3 column of the device is designed into a short rough shape, and the stem 3 adopts the way of single-sheet, seven-step, longitudinal ladder lamination iron, can obviously improve the magnetic flux density distribution of 3 corner silicon steel sheets joints of stem 3, and structurally adopted the closed fastener, the steel draw plate structure, guarantee the vibration is zero in winding and structure, can reduce the noise effectively, be provided with the silica gel stick 4 between stem 3 and the high magnetic conduction silicon steel sheet 5, equal to add amortization and buffering between stem 3 and high magnetic conduction silicon steel sheet 5, can also play the effect of noise reduction, a plurality of apparatuses cooperate each other, can reduce the noise of the apparatus by a maximum margin, the apparatus has the advantage that the noise reduction effect is good.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. Dry-type transformer, including fuselage body (1) and removal base (13), its characterized in that, a plurality of groups thermal resistance sensor (2) are evenly installed to the inside bottom surface position of fuselage body (1), stem (3) are installed at thermal resistance sensor (2) top, stem (3) periphery is evenly nested has a plurality of groups silica gel stick (4), silica gel stick (4) peripheral has around highly leading silicon magnet steel sheet (5), inside top surface both sides position fixed symmetry of fuselage body (1) installs fan (10), and fan (10) are equipped with two sets ofly altogether, and are two sets of it has control mechanism (9) to lie in fuselage body (1) top surface intermediate position fixed mounting between fan (10).

2. The dry-type transformer according to claim 1, wherein a protective shell (6) is sleeved on the periphery of the transformer body (1), glass doors (12) are symmetrically installed on two side surface positions of the protective shell (6), a handle (11) is fixedly installed on the middle position of one side surface of each glass door (12), and a rain shield (7) is fixed on the middle position of the top end of the protective shell (6).

3. Dry transformer according to claim 1 whereas the fuselage body (1) is equipped with a ventilation screen (8) in the middle inside the top.

4. Dry transformer according to claim 1 whereas the fuselage body (1) is fixed with a mobile base (13) at the bottom and the anti-skid wheels (14) are symmetrically mounted on the bottom of the mobile base (13).

5. Dry transformer according to claim 4, whereas the anti-skid wheels (14) are peripherally wrapped with rubber bumps preventing skidding of the tires.

6. Dry transformer according to claim 1, whereas the high permeability silicon steel sheets (5) consist of grain oriented high permeability silicon steel sheets with a small amount of magnetostriction.

7. Dry-type transformer according to claim 1, characterized in that the core limb (2) consists of a core with a low magnetic flux density.

8. Dry transformer according to claim 1 whereas the core limb (2) is top-mounted with a locking fastener, steel pull plate structure ensuring zero vibration in windings and structures.