Modularized dry-type transformer

Abstract

The utility model discloses a modularization dry type transformer relates to dry type transformer field, including transformation unit, transformation unit top left and right sides are respectively connected with control unit and protection unit, the transformation unit is installed the main part, the upper surface of bottom plate left and right symmetry is fixed with the fixed block, the upper surface of bottom plate left and right symmetry is fixed with the upper surface of bottom plate right and left symmetry. The two fixing blocks are symmetrically arranged on the surface of the bottom plate, and movable grooves are formed in the tops of the fixing blocks in a penetrating mode. According to the modular dry-type transformer, the clamping blocks can be clamped and positioned with the clamping grooves when resetting, the device body and the bottom plate can be driven to be positioned when the clamping grooves are positioned, the device body mounting efficiency is improved, the device body can be extruded from the two sides through the two extrusion blocks, and the stability of the device body is improved; the using safety of the dry-type transformer is improved in a disguised mode, the height of an extrusion block can be adjusted, the extrusion position of the transformer body is changed accordingly, and the stability of the transformer body is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of dry-type transformers, in particular to a modular dry-type transformer. Background Art

[0002] A dry-type transformer is a transformer that does not use liquid insulation materials. It mainly uses air for insulation and heat dissipation. It is mainly used to increase or decrease voltage in power systems. In order to decompose complex systems or products into smaller, independent modules or components, the transformer will be made modular. These modules can be independently developed, tested, assembled and maintained, making them more convenient and safer to use.

[0003] At present, dry-type transformers still have certain shortcomings, such as dry-type transformers are not easy to repair and maintain:

[0004] To overcome the inconvenience of repairing and maintaining dry-type transformers, a Chinese patent in the prior art (publication number: CN116759194A) discloses a modular dry-type transformer. When a specific module of the modular dry-type transformer needs to be repaired and maintained, it is only necessary to move the slide cart to repair and maintain the corresponding single-phase dry-type transformer unit. Therefore, the present invention can make dry-type transformers easy to repair and maintain.

[0005] However, the dry-type transformers currently in use still have certain shortcomings. In the above-mentioned document, it is only necessary to move the slide cart to repair and maintain the corresponding single-phase dry-type transformer unit. As can be seen from the attached figure, the transformer unit is placed flat, which is not conducive to the heat dissipation of the transformer unit, thereby affecting the safety of use and there are unstable factors. Secondly, the center of gravity of the transformer unit may be unstable when it is placed upright and it is easy to shake. Therefore, it is necessary to improve the existing structure. Utility Model Content

[0006] The purpose of the present invention is to provide a modular dry-type transformer to solve the problems in the above background technology of low efficiency in disassembly of a damaged transformer body and possible instability of the transformer body during daily maintenance.

[0007] To achieve the above object, the present invention provides the following technical solution: a modular dry-type transformer, comprising a transformer unit, wherein a control unit and a protection unit are connected to the left and right sides of the top of the transformer unit respectively, and a device body is installed inside the transformer unit;

[0008] The transformer unit is internally fixed with a base plate by means of screw threads, and the base plate and the transformer unit are movably connected via a slide rail. Fixed blocks are symmetrically fixed on the upper surface of the base plate. Two groups of fixed blocks are symmetrically arranged on the surface of the base plate. A movable groove is formed through the top of the fixed block, and a mounting mechanism for positioning the device body is arranged inside the movable groove.

[0009] The upper surface of the bottom plate is symmetrically provided with guide grooves, and a support mechanism for supporting the side surfaces of the device body is provided inside the guide grooves.

[0010] Furthermore, the installation mechanism includes a pull rod, which slides through the movable groove. A locking block is fixed to the lower end of the pull rod, and a first spring is connected between the locking block and the movable groove.

[0011] Furthermore, the engaging block forms a telescopic structure through the first spring and the movable slot, external blocks are fixed on both sides of the device body, and engaging slots are provided on the upper surfaces of the external blocks, and the engaging slots are engaged with the engaging blocks.

[0012] Furthermore, the support mechanism includes a guide block, which slides through the guide groove. A threaded block is fixed on the upper right surface of the guide block, and a nut is threadedly connected to the surface of the threaded block.

[0013] Furthermore, a support rod is fixed to the upper left surface of the guide block, and an extrusion block is movably connected to the side of the support rod. The extrusion block is arc-shaped, and an extrusion mechanism for adjusting the height of the extrusion block is provided inside the support rod.

[0014] Furthermore, the extrusion mechanism includes a sliding groove, which is opened on a side of the support rod close to the extrusion block. The extrusion block slides through the sliding groove. A telescopic groove is opened on the side of the extrusion block close to the support rod.

[0015] Furthermore, a second spring is connected inside the telescopic slot, a telescopic block is connected to the end of the second spring, the telescopic block is slidably connected to the telescopic slot, and three positioning slots are provided inside the sliding slot.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. This modular dry-type transformer has a snap-fitting block that can be snap-fitted with the snap-fitting slot when resetting. When the snap-fitting slot is in position, it can drive the transformer body and the base plate to be positioned, thereby improving the efficiency of the transformer body installation. The two extrusion blocks can squeeze the transformer body from both sides, thereby improving the stability of the transformer body and indirectly improving the safety of the dry-type transformer. The extrusion blocks can adjust their own height, thereby changing the extrusion position on the transformer body, further improving the stability of the transformer body.

[0018] 2. A locking block is provided. Through the inclined surface of the locking block, the locking block can be directly operated by squeezing without pulling the pull rod, thereby greatly improving the efficiency of the device body installation and improving the convenience of operation;

[0019] 3. A nut is provided, through which the position of the guide block can be positioned, so that the extrusion block can be positioned at any time when supporting the device body, thereby improving the stability of the support;

[0020] 4. An extrusion block is provided. The extrusion block is arc-shaped, which can have a larger impact range when extruding and positioning on one side of the device body, thereby further improving the stability of the support for the device body;

[0021] 5. There are positioning slots, through which the height of the extrusion block can be adjusted. The height adjustment makes the center of gravity of the extrusion block different when it is on the side of the extruder body, and the extrusion intensity is different. It can be adjusted according to the height of the body, which improves the convenience of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall front-view three-dimensional structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the cross-sectional three-dimensional structure of the transformer unit of the present invention;

[0024] Figure 3 This is a schematic diagram of the cross-sectional three-dimensional structure of the fixing block of the utility model;

[0025] Figure 4 This is a schematic diagram of the three-dimensional structure of the bottom plate of the utility model;

[0026] Figure 5 This is a schematic diagram of the cross-sectional three-dimensional structure of the support rod of the utility model;

[0027] Figure 6 For this utility model Figure 5 Schematic diagram of the enlarged three-dimensional structure of part A in the middle.

[0028] In the figure: 1. Transformer unit; 2. Control unit; 3. Protection unit; 4. Device body; 101. Bottom plate; 102. Fixed block; 103. Movable slot; 104. Pull rod; 105. Engaging block; 106. First spring; 107. External block; 108. Engaging slot; 109. Guide slot; 110. Guide block; 111. Threaded block; 112. Nut; 113. Support rod; 114. Extrusion block; 115. Sliding slot; 116. Telescopic slot; 117. Second spring; 118. Telescopic block; 119. Positioning slot. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] Example 1:

[0031] like Figure 1-Figure 3 The technical solution shown in the figure, the utility model provides the following technical solution: In order to solve the problem that the transformer body 4 is damaged and the disassembly efficiency is low, the repair time is wasted, and the normal use is affected, the installation mechanism is disclosed:

[0032] It includes a transformer unit 1, the left and right sides of the top of the transformer unit 1 are respectively connected to a control unit 2 and a protection unit 3, a device body 4 is installed inside the transformer unit 1, a bottom plate 101 is fixedly connected to the inside of the transformer unit 1 by a thread, the bottom plate 101 and the transformer unit 1 are movably connected by a slide rail, and fixed blocks 102 are fixed symmetrically on the upper surface of the bottom plate 101. Two groups of fixed blocks 102 are symmetrically arranged on the surface of the bottom plate 101, and a movable groove 103 is opened on the top of the fixed block 102. The movable groove 103 is provided with a mounting mechanism for positioning the device body 4. The upper surface of 101 is symmetrically provided with a guide groove 109, and a support mechanism for supporting the side of the device body 4 is provided inside the guide groove 109. The installation mechanism includes a pull rod 104, and the pull rod 104 slides through the movable groove 103. A snap-fit ​​block 105 is fixed to the lower end of the pull rod 104, and a first spring 106 is connected between the snap-fit ​​block 105 and the movable groove 103. The snap-fit ​​block 105 forms a telescopic structure with the movable groove 103 through the first spring 106. External blocks 107 are fixed on both sides of the device body 4. A snap-fit ​​groove 108 is provided on the upper surface of the external block 107. 108 is connected with the snap-fit ​​block 105. For the convenience of the transformer, the transformer will be decomposed into multiple groups for modular use and assembly, which can improve the maintenance efficiency and the effect of operation. When the transformer body 4 needs to be fixed, the mobile body 4 can be moved by the pending external block 107. When the external block 107 moves to the socket in front of the fixed block 102, it can be inserted. When the external block 107 is inserted, it can be inserted into the inclined side of the snap-fit ​​block 105 for squeezing. When the snap-fit ​​block 105 is squeezed, it can slide through the movable groove 103. When the snap-fit ​​block 105 slides The first spring 106 can be squeezed, and after the locking block 105 is squeezed into the movable groove 103, the external block 107 can drive the locking groove 108 to move to the bottom of the locking block 105. At this time, the locking block 105 can be reset by the elastic force of the first spring 106 itself. When the locking block 105 is reset, it can be locked and positioned with the locking groove 108. When the locking groove 108 is positioned, it can drive the device body 4 and the base plate 101 to be positioned, thereby improving the efficiency of the installation of the device body 4, and by pulling the pull rod 104, it is also convenient to disassemble and replace the device body 4 when it is damaged.

[0033] Example 2:

[0034] like Figure 1 、 Figure 2 and Figure 4 The technical solution shown in the figure, the utility model provides the following technical solution: In order to solve the problem that the transformer body 4 may be unstable during daily maintenance, a support mechanism is disclosed:

[0035] The supporting mechanism includes a guide block 110, which slides through the guide groove 109, and a threaded block 111 is fixed to the upper right surface of the guide block 110, and a nut 112 is threadedly connected to the surface of the threaded block 111, and a support rod 113 is fixed to the upper left surface of the guide block 110, and an extrusion block 114 is movably connected to the side of the support rod 113. The extrusion block 114 is arc-shaped, and an extrusion mechanism for adjusting the height of the extrusion block 114 is provided inside the support rod 113. After the transformer is fixed, it is necessary to drag the device body 4 to the outside of the transformer unit 1 in the form of a slide rail during daily maintenance and inspection. The center of gravity of the device body 4 will be unstable during the dragging process. At this time, pushing the support rod 113 can drive the extrusion block 114 to move, and when the support rod 113 moves, it can drive the guide block 110 to move. When the guide block 110 moves, it can slide through the guide groove 109, and the extrusion block 114 can be squeezed when it slides to the side of the device body 4. When the extrusion block 114 is squeezed, the nut 112 is moved to the end of the threaded block 111 for rotation. When the nut 112 is rotated, it can slide through the threaded block 111. When the nut 112 slides to the upper surface of the bottom plate 101, it can be squeezed. The nut 112 can drive the guide block 110 to position by extrusion. When the guide block 110 is positioned, the support rod 113 and the extrusion block 114 can support the side of the device body 4, and then push the extrusion block 114 on the other side in the same way. The two extrusion blocks 114 can squeeze the device body 4 from both sides, thereby improving the stability of the device body 4 and indirectly improving the safety of the dry-type transformer.

[0036] Example 3:

[0037] like Figure 5 and Figure 6 The technical solution shown in the figure, the utility model provides the following technical solution: In order to solve the problem that the supporting mechanism of the transformer may be insufficient, on the basis of implementing the second method, an extrusion mechanism is disclosed:

[0038] The extrusion mechanism includes a sliding groove 115, which is provided on the side of the support rod 113 close to the extrusion block 114. The extrusion block 114 slides through the inner side of the sliding groove 115. A telescopic groove 116 is provided on the side of the extrusion block 114 close to the support rod 113. A second spring 117 is connected inside the telescopic groove 116. The end of the second spring 117 is connected to a telescopic block 118. The telescopic block 118 is slidably connected to the telescopic groove 116. Three positioning grooves 119 are provided on the inner side of the sliding groove 115. Before the support mechanism of the transformer is used, pushing the extrusion block 114 up and down can drive the telescopic block 118 to move. When the telescopic block 118 moves to the side of the positioning groove 119, it can be squeezed. When the telescopic block 118 is squeezed, it can slide through the telescopic groove 116. When 118 slides, the second spring 117 can be squeezed. After the telescopic block 118 is squeezed out of the positioning groove 119, the extrusion block 114 can slide inside the sliding groove 115. After the extrusion block 114 slides to the specified position, the telescopic block 118 can be moved to the side of another positioning groove 119. At this time, the telescopic block 118 can be reset under the elastic force of the telescopic groove 116. When the telescopic block 118 is reset, it can be squeezed and positioned with the other positioning groove 119. When the telescopic block 118 is positioned, it can drive the extrusion block 114 to be positioned. At this time, the extrusion block 114 can adjust its own height, thereby changing the extrusion position of the device body 4. The extrusion block 114 can be adjusted in height according to the height of the device body 4 and its own needs, thereby further improving the stability of the device body 4.

[0039] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A modular dry-type transformer, comprising a transformer unit (1), wherein the top and left sides of the transformer unit (1) are respectively connected to a control unit (2) and a protection unit (3), and the transformer unit (1) is internally installed with a main body (4). It is characterized by: The transformer unit (1) is internally fixedly connected to a bottom plate (101) via a threaded connection. The bottom plate (101) and the transformer unit (1) are movably connected via a slide rail. Fixed blocks (102) are fixed symmetrically on the upper surface of the bottom plate (101). Two groups of fixed blocks (102) are symmetrically arranged on the surface of the bottom plate (101). A movable groove (103) is provided through the top of the fixed block (102). A mounting mechanism for positioning the device body (4) is provided inside the movable groove (103). The upper surface of the bottom plate (101) is symmetrically provided with guide grooves (109), and a support mechanism for supporting the side surfaces of the device body (4) is provided inside the guide grooves (109).

2. A modular dry-type transformer according to claim 1, characterized in that: The installation mechanism includes a pull rod (104), the pull rod (104) slides through the movable groove (103), a locking block (105) is fixed to the lower end of the pull rod (104), and a first spring (106) is connected between the locking block (105) and the movable groove (103).

3. The modular dry-type transformer according to claim 2, characterized in that: The engaging block (105) forms a telescopic structure through a first spring (106) and a movable groove (103); external blocks (107) are fixed on both sides of the device body (4); an engaging groove (108) is provided on the upper surface of the external block (107); and the engaging groove (108) and the engaging block (105) are engaged with each other.

4. The modular dry-type transformer according to claim 1, characterized in that: The support mechanism comprises a guide block (110), the guide block (110) penetrates and slides inside the guide groove (109), a threaded block (111) is fixed on the upper surface of the right side of the guide block (110), and a nut (112) is threadedly connected to the surface of the threaded block (111).

5. The modular dry-type transformer according to claim 4, characterized in that: A support rod (113) is fixed on the upper left surface of the guide block (110), and a side surface of the support rod (113) is movably connected to an extrusion block (114), the extrusion block (114) is in an arc shape, and an extrusion mechanism for adjusting the height of the extrusion block (114) is provided inside the support rod (113).

6. The modular dry-type transformer according to claim 5, characterized in that: The extrusion mechanism comprises a sliding groove (115), wherein the sliding groove (115) is provided on a side of the support rod (113) close to the extrusion block (114), the extrusion block (114) slides through the inner side of the sliding groove (115), and a telescopic groove (116) is provided on a side of the extrusion block (114) close to the support rod (113).

7. The modular dry-type transformer according to claim 6, characterized in that: The telescopic slot (116) is internally connected to a second spring (117), and the end of the second spring (117) is connected to a telescopic block (118). The telescopic block (118) is slidably connected to the telescopic slot (116), and three positioning slots (119) are provided inside the sliding slot (115).

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