Three-phase voltage transformer with external protection function

Abstract

The utility model discloses a three-phase voltage transformer with an external protection function, which comprises a bottom plate, a transformer body is arranged at the top of the bottom plate, a protective shell covers the transformer body, the bottom of the protective shell is connected with the bottom plate, side surface shielding covers are clamped and mounted on the front side and the rear side of the protective shell, and the side surface shielding covers are clamped and mounted on the bottom plate. A rainproof plate is installed above the protective shell, supporting springs are installed on the inner sides of the side face shielding covers, and protective baffles are installed at the inner ends of the supporting springs. By arranging the side shielding covers, the protective baffles, the supporting springs, the rubber filling pads and other structures, mechanical collision can be effectively buffered and resisted, and the mutual inductor body is protected from being damaged by external force; the buffer layer, the anti-corrosion coating and the wear-resistant layer on the outer surface of the protective shell enhance the resistance of the protective shell to external impact force, chemical corrosion and wear, and the service life of the whole transformer is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to three -phase voltage mutual inductor technical field, concretely is a three -phase voltage mutual inductor with external protection function. BACKGROUND

[0002] Three -phase voltage mutual inductor as the key equipment for measuring three -phase voltage in power system, plays an important role in the process of power transmission and distribution, however, in practical application scene, three -phase voltage mutual inductor often faces many external factors challenges, at present, the protection measure of existing three -phase voltage mutual inductor often has certain limitation, and the protection structure of part mutual inductor is simple, cannot effectively resist strong mechanical impact, and the dust protection effect of some protection design is not good, cannot guarantee the dry and clean of mutual inductor inside, and the protection ability of chemical corrosion is also relatively weak. SUMMARY

[0003] The utility model discloses a three -phase voltage mutual inductor with external protection function, has the advantages of improving the protection ability of mechanical collision, dust, chemical corrosion and other external factors.

[0004] In order to achieve the above object, the utility model provides the following technical scheme: a three -phase voltage mutual inductor with external protection function, including the bottom plate, the top of bottom plate places the mutual inductor body, the outside cover of mutual inductor body is equipped with the protective housing, the bottom of protective housing is connected with bottom plate, the both sides of protective housing are all connected and installed with side shelter cover, the top of protective housing is installed with rainproof board, the inboard of side shelter cover is installed with support spring, the inboard of support spring is installed with protective baffle, the inboard of protective baffle is in line with the side of mutual inductor body.

[0005] As preferred scheme, install rubber filling pad at the clearance of the joint part of protective baffle and mutual inductor body, the rubber filling pad is completely in line with the both sides of mutual inductor body.

[0006] As preferred scheme, the middle part outside protective baffle is fixedly installed with rubber pad, and the inboard of rubber filling pad is connected with the inboard of side shelter cover.

[0007] As preferred scheme, the edge of rainproof board extends to the outside of protective housing, and the left and right sides of bottom plate are symmetrically provided with drainage grooves.

[0008] As preferred scheme, the connecting part of side shelter cover and protective housing is bonded with rubber sealing strip, and the penetrating part of mutual inductor body end and protective housing is clamped with sealing ring.

[0009] As a preferred scheme, the outer surface of the protective shell is provided with a buffer layer, the outside of the buffer layer is coated with an anti-corrosion coating, and the outer surface of the anti-corrosion coating is coated with a wear-resistant layer.

[0010] As a preferred scheme, the left side of the protective shell is provided with a heat dissipation hole, and a dust screen is additionally embedded and installed in the inside of the heat dissipation hole.

[0011] As a preferred scheme, a support pad is installed on the top of the bottom plate and in the inner cavity of the protective shell, the top of the support pad is connected with the bottom of the mutual inductor body, and rubber pads are additionally filled on the left and right sides of the mutual inductor body.

[0012] Compared with the prior art, the utility model has the beneficial effects as follows:

[0013] 1. The utility model discloses a side shielding cover, a protective baffle, a supporting spring and a rubber filling pad are arranged, mechanical collision can be effectively buffered and resisted, the mutual inductor body is protected from external damage, the buffer layer, the anti-corrosion coating and the wear-resistant layer on the outer surface of the protective shell enhance the resistance of the protective shell to external impact force, chemical corrosion and wear, and the service life of the whole mutual inductor is prolonged.

[0014] 2. The rubber filling pad can buffer, reduce the direct influence of impact force on the mutual inductor body, the rubber filling pad is completely attached to the front and back sides of the mutual inductor body, can effectively fill the gap between the protective baffle and the mutual inductor body, forms a relatively sealed space, so that dust, humidity, moisture and some corrosive gases can be prevented from entering the mutual inductor, and the electrical performance and service life of the mutual inductor are not adversely affected. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the utility model structure perspective drawing;

[0016] Figure 2 It is the utility model protective shell internal structure perspective drawing;

[0017] Figure 3 It is the utility model partial structure section view;

[0018] Figure 4 It is the utility model protective shell outer coating structure schematic view.

[0019] In the drawing: 1, bottom plate;2, mutual inductor body;3, side shielding cover;4, protective baffle;5, rubber filling pad;6, supporting spring;7, rubber pad;8, rainproof board;9, drainage groove;10, rubber sealing strip;11, protective shell;12, wear-resistant layer;13, anti-corrosion coating;14, buffer layer;15, heat dissipation hole. DETAILED DESCRIPTION

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0022] Example 1:

[0023] Please see Figure 1 As shown, this utility model provides a three-phase voltage transformer with external protection function, including a base plate 1, a transformer body 2 placed on the top of the base plate 1, a protective shell 11 covering the outside of the transformer body 2, the bottom of the protective shell 11 being connected to the base plate 1, side shields 3 being snapped on both the front and rear sides of the protective shell 11, a rainproof plate 8 being installed on the top of the protective shell 11, a support spring 6 being installed on the inner side of the side shield 3, a protective baffle 4 being installed on the inner end of the support spring 6, and the inner side of the protective baffle 4 being in contact with the side of the transformer body 2.

[0024] This technical solution, through the setting of side shields 3, protective baffles 4, support springs 6 and rubber pads 5, can effectively buffer and resist mechanical collisions, protect the transformer body 2 from external damage, and the buffer layer 14, anti-corrosion coating 13 and wear-resistant layer 12 on the outer surface of the protective shell 11 enhance the protective shell 11's resistance to external impact, chemical corrosion and wear, thus extending the service life of the entire transformer.

[0025] Example 2:

[0026] Based on Embodiment 1, this utility model is as follows: Figure 2 As shown, a rubber filling pad 5 is installed at the gap between the protective baffle 4 and the transformer body 2. The rubber filling pad 5 is completely attached to the front and rear sides of the transformer body 2. A rubber pad block 7 is fixedly installed in the middle of the outer side of the protective baffle 4. The outer side of the rubber filling pad 5 is connected to the inner side of the side shield 3.

[0027] Adopting such Figure 1The rubber filling pad 5 can play a buffering role, reduces the direct influence of impact force on the mutual inductor body 2, the rubber filling pad 5 is completely attached to the front and rear sides of the mutual inductor body 2, can effectively fill the gap between the protective baffle 4 and the mutual inductor body 2, forms a relatively sealed space, so that dust, moisture, water and some corrosive gases can be prevented from entering the mutual inductor, and the electrical performance and service life of the mutual inductor are not adversely affected.

[0028] Secondly, in the technical scheme, the edge of the rainproof plate 8 extends outward to the outside of the protective shell 11, and the left and right sides of the bottom plate 1 are symmetrically provided with drainage grooves 9; the connecting part of the side shielding cover 3 and the protective shell 11 is bonded with a rubber sealing strip 10, and the penetrating part of the mutual inductor body 2 and the protective shell 11 is clamped with a sealing ring.

[0029] It adopts the technical scheme as Figure 1 The edge of the rainproof plate 8 extends outward to the outside of the protective shell 11, can significantly expand the shielding range, and the design not only can resist vertically falling rain, but also has good protection effect on oblique rain and wind, when it is windy and rainy, the oblique rain can also be shielded by the outwardly extending rainproof plate 8, and the three-phase voltage transformer is provided with more comprehensive protection, even if a small amount of rain enters the inside of the protective shell 11 or accumulates on the bottom plate 1, the drainage groove 9 can timely drain the accumulated water, which can avoid that the mutual inductor body 2 is eroded by the accumulated water for a long time, prevent electrical short circuit and other faults caused by the accumulated water, and protect the normal operation of the three-phase voltage transformer.

[0030] Embodiment three:

[0031] The utility model discloses as Figures 1-4 The outer surface of the protective shell 11 is provided with a buffer layer 14, the outer part of the buffer layer 14 is coated with an anti-corrosion coating 13, and the outer surface of the anti-corrosion coating 13 is coated with a wear-resistant layer 12; the left side of the protective shell 11 is provided with a heat dissipation hole 15, and a dust screen is additionally embedded and installed in the inside of the heat dissipation hole 15; a supporting pad is installed on the top of the bottom plate 1 and located in the inner cavity of the protective shell 11, the top of the supporting pad is connected with the bottom of the mutual inductor body 2, and rubber pads are filled on the left and right sides of the mutual inductor body 2.

[0032] The technical scheme is adopted, the buffer layer 14 can play an important role when the protective shell 11 is impacted from outside, in the equipment operation process, certain vibration can be generated, the buffer layer 14 can buffer and damp the vibration, meanwhile, the buffer layer 14 can also reduce the noise generated by the vibration, and create a relatively quiet operation environment for the equipment, the anticorrosive coating 13 can form a protective film on the surface of the protective shell 11, prevent the chemical substances from directly contacting the shell, thereby effectively preventing the shell from being corroded, prolonging the service life of the protective shell 11, the wear-resistant layer 12 can enhance the hardness and wear resistance of the surface of the protective shell 11, reduce the surface wear and scratches caused by friction, and maintain the appearance and performance of the protective shell 11, while radiating heat, the dust screen can effectively prevent dust, sundries and the like from entering the inside of the protective shell 11, and the design of the heat dissipation holes 15 can make air circulate in the protective shell 11, so that the heat generated in the inside is dissipated, and the transformer operates in a normal temperature range, the accumulation of dust can affect the heat dissipation effect of the transformer, and even cause electrical short circuit and the like, and the existence of the dust screen can ensure that the air entering the inside of the protective shell 11 is clean, and the normal operation of the transformer is ensured.

[0033] The working principle of the utility model is that when impacted by external mechanical impact, the buffer layer 14 will be elastically deformed, absorbs and disperses the impact energy, and through the deformation of the buffer layer 14, the impact force is converted into the elastic potential energy of the buffer layer 14, thereby reducing the impact force transmitted to the transformer body 2 in the inside of the protective shell 11, and protecting the transformer body 2 from being damaged, when the protective shell 11 is exposed to an environment containing chemical corrosive substances, the anticorrosive coating 13 can prevent the chemical substances from directly contacting the metal material of the protective shell 11, prevent chemical reaction from causing corrosion, and prolong the service life of the protective shell 11, the wear-resistant layer 12 increases the wear resistance of the surface of the protective shell 11, in the daily use process, the protective shell 11 can rub against surrounding objects, the wear-resistant layer 12 can withstand the friction, reduce the surface wear and scratches, and maintain the integrity and protection performance of the protective shell 11.

[0034] When an object impacts from the side, the side shielding cover 3 is first contacted, the side shielding cover 3 transmits part of the impact force to the protective baffle 4, the protective baffle 4 is connected with the side shielding cover 3 through the supporting spring 6, can be compressed and deformed when impacted, further buffers the impact force and protects the transformer body 2, when raining, the rainwater flows to the outside of the protective shell 11 along the surface of the rainproof plate 8, even if a small amount of rainwater enters the inside of the protective shell 11 or accumulates on the bottom plate 1, the drainage grooves 9 symmetrically arranged on the left and right sides of the bottom plate 1 can make the accumulated water flow out through the drainage grooves 9 under the action of gravity.

[0035] It is important to note that the construction and arrangement of the application shown in the various exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review the present disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters, mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter described in the present application. For example, elements shown as integrally formed can be constructed of multiple parts or elements, the position of elements can be reversed or otherwise varied, and the nature or number of elements or positions can be altered or varied. Accordingly, all such modifications are intended to be included within the scope of the present application. The order or sequence of any process or method steps can be varied or re-sequenced without materially affecting the application. Any "means plus function" clauses are intended to cover the structures described herein as performing the recited functionality and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes, and omissions can be made in the design, operating

[0036] Also, to provide a concise description of the exemplary embodiments, not all features of an actual implementation can be described (i.e., those related to the best mode for carrying out the present application, or those which are apparent).

[0037] Finally, it should be noted that the above-mentioned embodiments are merely used to illustrate the technical solutions of the present application, but not to limit the protection scope of the present application. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or equivalent replaced without departing from the spirit and scope of the technical solutions of the present application.

Claims

1. A three-phase voltage transformer with external protection, comprising a base plate (1), characterized in that: The top of the bottom plate (1) is provided with a mutual inductor body (2), the outer cover of the mutual inductor body (2) is provided with a protective shell (11), the bottom of the protective shell (11) is connected with the bottom plate (1), the front and rear sides of the protective shell (11) are both clamped and installed with a side shielding cover (3), the upper side of the protective shell (11) is installed with a rainproof plate (8), the inner side of the side shielding cover (3) is installed with a supporting spring (6), the inner end of the supporting spring (6) is installed with a protective baffle (4), and the inner side of the protective baffle (4) is attached to the side of the mutual inductor body (2).

2. The three-phase voltage transformer with external protection function according to claim 1, characterized in that: The gap between the protective baffle (4) and the attachment part of the mutual inductor body (2) is installed with a rubber filling pad (5), and the rubber filling pad (5) is completely attached to the front and rear sides of the mutual inductor body (2).

3. The three-phase voltage transformer with external protection according to claim 2, characterized in that: The middle part outside the protective baffle (4) is fixedly installed with a rubber pad (7), and the outer side of the rubber filling pad (5) is connected with the inner side of the side shielding cover (3).

4. The three-phase voltage transformer with external protection according to claim 1, characterized in that: The edge of the rainproof plate (8) extends outward to the outside of the protective shell (11), and the left and right sides of the bottom plate (1) are symmetrically provided with drainage grooves (9).

5. The three-phase voltage transformer with external protection according to claim 1, characterized in that: The connecting part of the side shielding cover (3) and the protective shell (11) is bonded with a rubber sealing strip (10), and the penetrating part of the mutual inductor body (2) and the protective shell (11) is clamped with a sealing ring.

6. The three-phase voltage transformer with external protection according to claim 1, characterized in that: The outer surface of the protective shell (11) is provided with a buffer layer (14), the outer surface of the buffer layer (14) is coated with an anti-corrosion coating (13), and the outer surface of the anti-corrosion coating (13) is coated with a wear-resistant layer (12).

7. The three-phase voltage transformer with external protection according to claim 1, characterized in that: The left side of the protective shell (11) is provided with a heat dissipation hole (15), and the inside of the heat dissipation hole (15) is additionally embedded and installed with a dustproof net.

8. The three-phase voltage transformer with external protection according to claim 1, characterized in that: The top of the bottom plate (1) and in the inner cavity of the protective shell (11) is installed with a supporting pad, and the top of the supporting pad is connected with the bottom of the mutual inductor body (2), and the left and right sides of the mutual inductor body (2) are filled with rubber pads.

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