Box-type transformer with compact structure

Abstract

The utility model discloses a box-type transformer with a compact structure. The box-type transformer with the compact structure comprises a shell box body and a transformer, a first partition plate and a second partition plate are arranged in the shell box body, a preset interval is formed between the first partition plate and the second partition plate, and the shell box body is divided into a high-voltage area and a low-voltage area by the first partition plate and the second partition plate to form a structure shaped like a Chinese character'ri '; the transformer is located at a preset interval between the first partition plate and the second partition plate, a sliding rail is arranged at the bottom of the transformer, and the transformer is driven by external force to move between the high-voltage area and the low-voltage area along the sliding rail. According to the box-type transformer, the box body is divided into the high-voltage area and the low-voltage area by arranging the first partition plate and the second partition plate, and the transformer is arranged at the junction of the high-voltage area and the low-voltage area, so that an area special for placing the transformer is reduced, and the internal structure of the box-type transformer is more compact.

Description

Technical Field

[0001] The utility model relates to the field of transformers, in particular to a box-type transformer with a compact structure. Background Art

[0002] The box-type transformer (usually referred to as "box transformer") concentrates the traditional transformer in a box-type shell. It has the characteristics of small size, light weight, low noise, low loss and high reliability. It is widely used in residential areas, commercial centers, light stations, airports, factories, mines, enterprises, hospitals, schools and other places.

[0003] Currently, the box-type transformers on the market are internally divided into a transformer room, a high-voltage room and a low-voltage room. These three areas constitute a box-type transformer, but this will make the box-type transformer larger in size, occupy a large space, and cannot be installed in some relatively narrow places. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art. The utility model provides a compact box-type transformer. The box body is divided into a high-voltage area and a low-voltage area by arranging a first partition and a second partition, and the transformer is arranged at the junction of the high-voltage area and the low-voltage area, thereby reducing the area specially placed for the transformer and making the internal structure of the box-type transformer more compact.

[0005] Accordingly, the utility model provides a noise reduction dry-type transformer, wherein the compact box-type transformer comprises: a housing and a transformer;

[0006] A first partition and a second partition are arranged inside the outer casing, a preset interval is provided between the first partition and the second partition, and the first partition and the second partition separate the outer casing into a high-pressure area and a low-pressure area, forming a sun-shaped structure;

[0007] The transformer is located at a preset interval between the first partition and the second partition, and a slide rail is provided at the bottom of the transformer, and the transformer is driven by an external force to move along the slide rail between the high-voltage area and the low-voltage area;

[0008] A high-voltage switch cabinet is provided in the high-voltage area, and the high-voltage switch cabinet is electrically connected to the transformer based on a cable;

[0009] A low-voltage power distribution device is provided in the low-voltage area, and the low-voltage power distribution device is electrically connected to the transformer via a cable.

[0010] Preferably, a cable trough is provided on the first partition, the cable is embedded in the cable trough, one end of the cable trough is close to the transformer, and the other end of the cable trough is close to the low-voltage power distribution device;

[0011] The second partition plate is provided with a cable trough, the cable is embedded in the cable trough, one end of the cable trough is close to the transformer, and the other end of the cable trough is close to the high-voltage switch cabinet.

[0012] Preferably, an electrical isolation cover is provided outside the transformer, and the electrical isolation cover includes a left electrical isolation sub-cover and a right electrical isolation sub-cover.

[0013] Preferably, the electrical isolation cover is made of insulating material.

[0014] Preferably, the transformer is movably connected to the slide rail based on a pulley.

[0015] Preferably, the slide rail comprises a left slide rail, a middle slide rail and a right slide rail;

[0016] A first connecting groove is provided at the bottom of the right end of the left section slide rail, a first clamping groove is provided at the left end of the first connecting groove, a second connecting groove is provided at the bottom of the left end of the right section slide rail, and a second clamping groove is provided at the right end of the second connecting groove;

[0017] Positioning bosses are arranged at both ends of the middle slide rail, and end surfaces of the positioning bosses extend upward to form a clamping plate.

[0018] Preferably, a lifting mechanism is provided at the bottom of the middle slide rail, and the lifting mechanism comprises: a driving cylinder and a supporting column;

[0019] The middle slide rail is driven by the lifting mechanism to move between the bottom of the left slide rail and the top of the left slide rail.

[0020] Preferably, one side of the low-voltage power distribution device abuts against the second partition, and one side of the high-voltage switch cabinet abuts against the first partition.

[0021] Preferably, a plurality of external connection holes are provided at the bottom of the low-voltage power distribution device.

[0022] Preferably, the outer shell is made of metal.

[0023] Beneficial effects of the utility model:

[0024] The utility model divides a box body into a high-voltage area and a low-voltage area by arranging a first partition and a second partition, and arranges the transformer at the junction of the high-voltage area and the low-voltage area, thereby reducing the area specially placed for the transformer and making the internal structure of the box-type transformer more compact; the cable is routed along the first partition, avoiding a straight-line connection between the transformer and the high-voltage switch cabinet, occupying the space inside the box-type transformer, ensuring the routing of the cable and improving the space utilization rate inside the box-type transformer, and making the internal space of the box-type transformer more compact; the cable is routed along the second partition, avoiding a straight-line connection between the transformer and the low-voltage power distribution device, occupying the space inside the box-type transformer, ensuring the routing of the cable and improving the space utilization rate inside the box-type transformer, and making the internal space of the box-type transformer more compact. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 It is an exploded view of the box-type transformer in the utility model;

[0027] Figure 2 It is a plan view of the box-type transformer in the utility model;

[0028] Figure 3 It is an enlarged view of point A in the utility model;

[0029] Figure 4 It is a structural schematic diagram of the second partition in the utility model;

[0030] Figure 5 It is a cross-sectional view of the transformer in the utility model.

[0031] In the accompanying drawings, 1. outer casing; 2. first partition; 21. cable trough; 22. first limiting hole; 3. second partition; 31. cable trough; 32. second limiting hole; 4. transformer; 5. slide rail; 51. left slide rail; 511. first connecting groove; 512. first clamping groove; 52. middle slide rail; 521. positioning boss; 522. clamping plate; 53. right slide rail; 531. second connecting groove; 532. second clamping groove; 54. lifting mechanism; 541. driving cylinder; 542. supporting column; 6. high-voltage area; 61. high-voltage switch cabinet; 7. low-voltage area; 71. low-voltage power distribution device; 72. external connecting hole; 8. electrical isolation cover; 81. left electrical isolation sub-cover; 82. right electrical isolation sub-cover. DETAILED DESCRIPTION

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0033] Figure 1 The explosion diagram of the box-type transformer in the present invention is shown. The compact box-type transformer includes: a housing box body 1 and a transformer 4. The transformer 4 is installed inside the outer box housing, and the transformer 4 is installed at the central position inside the outer box housing.

[0034] Furthermore, the material of the housing box body 1 is metal. Preferably, the material of the housing box body 1 is aluminum alloy. The weight of the aluminum alloy is relatively light, which reduces the weight of the housing box body 1 and facilitates transportation and installation; the aluminum alloy has good heat conduction performance, which can improve the heat dissipation efficiency of the box-type transformer and is beneficial to ensuring that the internal temperature of the transformer 4 is within the preset range; the aluminum alloy has good anti-corrosion performance, which can effectively prevent the environment such as high temperature, high pressure and humidity from causing harm to the transformer 4.

[0035] Figure 2 The plan view of the box-type transformer in the present invention is shown. A first partition 2 and a second partition 3 are arranged inside the housing box body 1. There is a preset interval between the first partition 2 and the second partition 3, and the first partition 2 and the second partition 3 divide the housing box body 1 into a high-voltage area 6 and a low-voltage area 7, forming a structure in the shape of the Chinese character 'ri'; the transformer 4 is located in the preset interval between the first partition 2 and the second partition 3, and a slide rail 5 is arranged at the bottom of the transformer 4. The transformer 4 is driven by an external force to move between the high-voltage area 6 and the low-voltage area 7 along the slide rail 5; a high-voltage switch cabinet 61 is arranged in the high-voltage area 6, and the high-voltage switch cabinet 61 is electrically connected to the transformer 4 based on a cable; a low-voltage power distribution device 71 is arranged in the low-voltage area 7, and the low-voltage power distribution device 71 is electrically connected to the transformer 4 based on a cable.

[0036] Figure 3 The enlarged view at position A in the present invention is shown. Figure 4The schematic diagram of the structure of the second partition is shown. The first partition 2 and the second partition 3 are similar in appearance. The first partition 2 is provided with a cable trough 21. The cable is embedded in the cable trough 21. One end of the cable trough 21 is close to the transformer 4, and the other end of the cable trough 21 is close to the low-voltage power distribution device 71. The cable trough 21 fixes the cable on the second partition 3, so that the cable is routed on the first partition 2 along the cable trough 21, avoiding the transformer 4 and the low-voltage power distribution device 71 being connected in a straight line and occupying the space inside the box-type transformer, ensuring the routing of the cable, improving the space utilization inside the box-type transformer, and reducing the useless space inside the box-type transformer.

[0037] Similarly, a cable trough 31 is provided on the second partition 3, and the cable is embedded in the cable trough 31, one end of the cable trough 31 is close to the transformer 4, and the other end of the cable trough 31 is close to the high-voltage switch cabinet 61. The cable trough 31 fixes the cable on the first partition 2, so that the cable is routed on the second partition 3 along the cable trough 31, avoiding the transformer 4 and the high-voltage switch cabinet 61 being connected in a straight line and occupying the space inside the box-type transformer, ensuring the routing of the cable, improving the space utilization inside the box-type transformer, and reducing the useless space inside the box-type transformer.

[0038] Furthermore, the cable trough 21 is provided with a plurality of first limiting holes 22. In the embodiment, the cable trough 21 is provided with ten first limiting holes 22, wherein the ten first limiting holes 22 are divided into five groups of limiting holes, and any group of limiting holes includes two first limiting holes 22, one first limiting hole 22 is located at the top of the cable trough 21, and the other first limiting hole 22 is located at the bottom of the cable trough 21, and the centers of the two first limiting holes 22 are located on the same vertical axis. The first limiting hole 22 can be used to insert an L-shaped rubber rod to limit the position of the cable, ensuring that the cable is fixed in the cable trough 21 during use. Similarly, the cable trough 31 is provided with a plurality of second limiting holes 32. In the embodiment, the cable trough 31 is provided with ten second limiting holes 32, wherein the ten second limiting holes 32 are divided into five groups of limiting holes, and any group of limiting holes includes two second limiting holes 32, one second limiting hole 32 is located at the top of the cable trough 31, and the other second limiting hole 32 is located at the bottom of the cable trough 31, and the centers of the two second limiting holes 32 are located on the same vertical axis. The second limiting hole 32 can be used to insert an L-shaped rubber rod to limit the position of the cable, ensuring that the cable is fixed in the cable trough 31 during use.

[0039] refer to Figure 2, one side of the low-voltage power distribution device 71 abuts against the second partition 3, and one side of the high-voltage switch cabinet 61 abuts against the first partition 2. The low-voltage power distribution device 71 abuts against the second partition 3, reducing the distance between the low-voltage power distribution device 71 and the cable trough 21, thereby reducing the length of the cable, and the available space in the low-voltage area 7 is increased, and the space for maintenance personnel to move around for maintenance is increased, which is convenient for maintenance personnel to perform maintenance. Similarly, one side of the high-voltage switch cabinet 61 abuts against the first partition 2, and the low-voltage power distribution device 71 abuts against the second partition 3, reducing the distance between the low-voltage power distribution device 71 and the cable trough 21, thereby reducing the length of the cable, and the available space in the low-voltage area 7 is increased, and the space for maintenance personnel to move around for maintenance is increased, which is convenient for maintenance personnel to perform maintenance.

[0040] Figure 5 The schematic diagram of the cross-sectional structure of the transformer in the utility model is shown, and the transformer 4 is movably connected with the slide rail 5 based on the pulley. Four pulleys are arranged at the bottom of the transformer 4, and one of the four pulleys is arranged at one of the four vertex angles at the bottom of the transformer 4, that is, four pulleys are arranged at the bottom of the transformer 4, so that the transformer 4 can be moved between the high-voltage area 6 and the low-voltage area 7 more labor-saving. When the transformer 4 needs maintenance, the entire transformer 4 can be moved to the high-voltage area 6 or the low-voltage area 7 for maintenance, which improves the efficiency of maintenance while reducing the room dedicated to placing the transformer 4, and improves the space utilization rate inside the box-type transformer.

[0041] refer to Figure 5 The slide rail 5 includes a left slide rail 51, a middle slide rail 52 and a right slide rail 53. The left slide rail 51 is spliced ​​with the left end of the middle slide rail 52, and the right slide rail 53 is spliced ​​with the right end of the middle slide rail 52 to form a whole. A first connecting groove 511 is provided at the bottom of the right end of the left slide rail 51, and a first clamping groove 512 is provided at the left end of the first connecting groove 511. A second connecting groove 531 is provided at the bottom of the left end of the right slide rail 53, and a second clamping groove 532 is provided at the right end of the second connecting groove 531. Positioning bosses 521 are provided at both ends of the middle slide rail 52, and the end surface of the positioning bosses 521 extends upward to form a clamping plate 522. The positioning boss 521 is engaged with the first connecting groove 511, and the engaging plate 522 is engaged with the first engaging groove 512. The positioning boss 521 is engaged with the second connecting groove 531, and the engaging plate 522 is engaged with the second engaging groove 532, so as to prevent the transformer 4 from exerting a force on the left slide rail 51 or the right slide rail 53 when moving on the slide rail 5, so as to disengage the left slide rail 51 or the right slide rail 53 from the middle slide rail 52, thereby ensuring that the transformer 4 can move smoothly on the slide rail 5.

[0042] Furthermore, a lifting mechanism 54 is provided at the bottom of the middle slide rail 52, and the lifting mechanism 54 includes: a driving cylinder 541 and a support column 542; the output end of the driving cylinder 541 is connected to one end of the support column 542, and the other end of the support column 542 is connected to the bottom of the middle slide rail 52. The middle slide rail 52 is driven by the lifting mechanism 54 to move between the bottom of the left slide rail 51 and the top of the left slide rail 51. When the transformer 4 moves onto the middle slide rail 52, the driving cylinder 541 starts to work, and the output end of the driving cylinder 541 moves downward, driving the middle slide rail 52 to move downward, thereby causing the transformer 4 to move downward. When the output end of the driving cylinder 541 moves to the end, the top of the middle slide rail 52 is flush with the bottom of the left slide rail 51, and at the same time, the pulley of the transformer 4 close to the left slide rail 51 abuts against the end surface of the left slide rail 51, and the pulley of the transformer 4 close to the right slide rail 53 abuts against the end surface of the right slide rail 53, so as to prevent the transformer 4 from vibrating in the working state and moving left and right on the slide rail 5.

[0043] Similarly, when the transformer 4 needs to be inspected and repaired, the driving cylinder 541 starts to work, and the output end of the driving cylinder 541 moves upward, driving the middle slide rail 52 to move upward, thereby moving the transformer 4 upward. When the output end of the driving cylinder 541 moves to the end, the top of the middle slide rail 52 is flush with the top of the left slide rail 51, and then the transformer 4 is pushed to the end of the left slide rail 51 or the right slide rail 53 for inspection.

[0044] refer to Figure 2 , the bottom of the low-voltage power distribution device 71 is provided with a plurality of external connection holes 72, and the external connection holes 72 electrically connect the low-voltage power distribution device to an external load. In this embodiment, three external connection holes 72 are provided at the bottom of the low-voltage power distribution device 71, and the external connection holes 72 connect the inside and the outside of the low-voltage power distribution device 71, further enhancing the heat dissipation effect of the low-voltage power distribution device 71; and when the cable contacts the ground, it is easy to twist, vibrate and generate noise. The external connection holes 72 can fix the cable, so that the cable reduces swinging and vibration when it contacts the ground, thereby improving the safety of the box-type transformer.

[0045] Furthermore, an electrical isolation cover 8 is provided on the outside of the transformer 4, and the electrical isolation cover 8 includes a left electrical isolation sub-cover 81 and a right electrical isolation sub-cover 82. The left electrical isolation sub-cover 81 is located in the high-voltage area 6, and the right electrical isolation sub-cover 82 is located in the low-voltage area 7. The left electrical isolation sub-cover 81 is connected to the right electrical isolation sub-cover 82 to electrically isolate the high-voltage area 6 from the low-voltage area 7, thereby preventing the circuit from generating electromagnetic interference and causing damage to other electronic equipment, and ensuring the safety and stable operation of the box-type transformer.

[0046] Furthermore, the material of the electrical isolation cover 8 is an insulating material, and the material of the electrical isolation cover 8 is an acrylic plate. The acrylic plate is transparent, and the acrylic plate covers the surface of the transformer 4, so that the working state of the transformer 4 can be observed intuitively, which helps maintenance personnel to repair and maintain the transformer 4 in a targeted manner. The acrylic plate has good insulation, so that the high-voltage area 6 is electrically isolated from the low-voltage area 7, avoiding electromagnetic interference generated by the circuit to cause damage to other electronic equipment, and ensuring the safety and stable operation of the box-type transformer.

[0047] To sum up, the utility model divides the box into a high-voltage area and a low-voltage area by arranging a first partition and a second partition, and arranges the transformer at the junction of the high-voltage area and the low-voltage area, thereby reducing the area specifically for placing the transformer and making the internal structure of the box-type transformer more compact; the cable is routed along the first partition to avoid a straight-line connection between the transformer and the high-voltage switch cabinet, occupying the space inside the box-type transformer, ensuring the routing of the cable and improving the space utilization rate inside the box-type transformer, and making the internal space of the box-type transformer more compact; the cable is routed along the second partition to avoid a straight-line connection between the transformer and the low-voltage power distribution device, occupying the space inside the box-type transformer, ensuring the routing of the cable and improving the space utilization rate inside the box-type transformer, and making the internal space of the box-type transformer more compact.

[0048] In addition, the above is a detailed introduction to a compact box-type transformer provided by an embodiment of the utility model. Specific examples are used in this article to illustrate the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model; at the same time, for general technical personnel in this field, according to the idea of ​​the utility model, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the utility model.

Claims

1. A compact box-type transformer, characterized in that: The compact box-type transformer comprises: a housing and a transformer; A first partition and a second partition are arranged inside the outer casing, a preset interval is provided between the first partition and the second partition, and the first partition and the second partition separate the outer casing into a high-pressure area and a low-pressure area, forming a sun-shaped structure; The transformer is located at a preset interval between the first partition and the second partition, and a slide rail is provided at the bottom of the transformer, and the transformer is driven by an external force to move along the slide rail between the high-voltage area and the low-voltage area; A high-voltage switch cabinet is provided in the high-voltage area, and the high-voltage switch cabinet is electrically connected to the transformer based on a cable, and the cable is routed along the first partition; A low-voltage power distribution device is provided in the low-voltage area. The low-voltage power distribution device is electrically connected to the transformer based on a cable, and the cable is routed along the second partition.

2. The compact box-type transformer according to claim 1 is characterized in that: The first partition is provided with a cable trough, the cable is embedded in the cable trough, one end of the cable trough is close to the transformer, and the other end of the cable trough is close to the low-voltage power distribution device; The second partition plate is provided with a cable trough, the cable is embedded in the cable trough, one end of the cable trough is close to the transformer, and the other end of the cable trough is close to the high-voltage switch cabinet.

3. The compact box-type transformer according to claim 1 is characterized in that: An electrical isolation cover is arranged outside the transformer, and the electrical isolation cover comprises a left electrical isolation sub-cover and a right electrical isolation sub-cover.

4. The compact box-type transformer according to claim 3 is characterized in that: The electrical isolation cover is made of insulating material.

5. The compact box-type transformer according to claim 1 is characterized in that: The transformer is movably connected to the slide rail based on a pulley.

6. The compact box-type transformer according to claim 1 is characterized in that: The slide rail comprises a left slide rail, a middle slide rail and a right slide rail; A first connecting groove is provided at the bottom of the right end of the left section slide rail, a first clamping groove is provided at the left end of the first connecting groove, a second connecting groove is provided at the bottom of the left end of the right section slide rail, and a second clamping groove is provided at the right end of the second connecting groove; Positioning bosses are arranged at both ends of the middle slide rail, and end surfaces of the positioning bosses extend upward to form a clamping plate.

7. The compact box-type transformer according to claim 6, characterized in that: A lifting mechanism is provided at the bottom of the middle slide rail, and the lifting mechanism comprises: a driving cylinder and a supporting column; The middle slide rail is driven by the lifting mechanism to move between the bottom of the left slide rail and the top of the left slide rail.

8. The compact box-type transformer according to claim 1 is characterized in that: One side of the low-voltage power distribution device abuts against the second partition plate, and one side of the high-voltage switch cabinet abuts against the first partition plate.

9. The compact box-type transformer according to claim 1, characterized in that: A plurality of external connection holes are arranged at the bottom of the low voltage power distribution device.

10. The compact box-type transformer according to claim 1, characterized in that: The material of the outer shell is metal.

Images