Integrally-cast three-phase combined mutual inductor

Abstract

The utility model relates to the technical field of power equipment, and discloses an integrally-cast three-phase combined mutual inductor which comprises a three-phase mutual inductor body, a plurality of wiring piles are arranged on the three-phase mutual inductor body, a plurality of protective sleeves are arranged on the wiring piles in a sliding and sleeving mode, two fixing frames are fixedly connected to the lower surface of the three-phase mutual inductor body, and the fixing frames are fixedly connected to the lower surface of the three-phase mutual inductor body. According to the integrally-poured three-phase combined mutual inductor, the first rubber belt and the second rubber belt are used for simply binding the electrical mounting bracket, so that the three-phase mutual inductor body cannot easily move upwards, and the three-phase mutual inductor body cannot easily move; the fixing bolts are arranged on the electrical installation support, so that the fixing bolts can be conveniently screwed on the electrical installation support, the three-phase mutual inductor body is prevented from falling off or severely displacing in the process of installing the three-phase mutual inductor body on the electrical installation support, and the installation stability and safety of the three-phase mutual inductor body are guaranteed. And the practicability of the integrally poured three-phase combined mutual inductor is also conveniently improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of power equipment, concretely is an integrated pouring three-phase combined mutual inductor. BACKGROUND

[0002] Three-phase voltage mutual inductor is one kind of voltage mutual inductor, and is suitable for voltage measurement and power supply output of three-phase electricity, and the three-phase voltage mutual inductor includes a voltage reducing component, and the voltage reducing component includes a core and two windings arranged on the core. After obtaining relatively low voltage through the voltage reducing component, on the one hand, low voltage power supply can be carried out, and on the other hand, the signal end can be outputted to detect each phase electricity.

[0003] The lower side of the existing three-phase voltage mutual inductor is generally provided with a fixing frame, and a mounting screw hole is formed in the fixing frame. According to the installation requirements, the three-phase voltage mutual inductor is fixed on the corresponding electrical mounting frame or mounting beam through bolts. The height of the mounting frame and the mounting beam at the position of some three-phase voltage mutual inductors is relatively high. During the operation process of installing and tightening the bolts, the three-phase voltage mutual inductor has no any limit, which makes the three-phase voltage mutual inductor may be seriously displaced or even dropped during the installation process, thereby causing a safety threat, and thereby reducing the practicability of the three-phase voltage mutual inductor. SUMMARY

[0004] (I) Technical problem solved

[0005] In view of the deficiencies in the prior art, the utility model provides an integrated pouring three-phase combined mutual inductor, which solves the problem that the lower side of the existing three-phase voltage mutual inductor is generally provided with a fixing frame, and a mounting screw hole is formed in the fixing frame. According to the installation requirements, the three-phase voltage mutual inductor is fixed on the corresponding electrical mounting frame or mounting beam through bolts. The height of the mounting frame and the mounting beam at the position of some three-phase voltage mutual inductors is relatively high. During the operation process of installing and tightening the bolts, the three-phase voltage mutual inductor has no any limit, which makes the three-phase voltage mutual inductor may be seriously displaced or even dropped during the installation process, thereby causing a safety threat, and thereby reducing the practicability of the three-phase voltage mutual inductor.

[0006] (II) Technical scheme

[0007] To achieve the above purpose, the utility model provides the following technical scheme: an integrated pouring three-phase combined mutual inductor, comprising a three-phase mutual inductor body, a plurality of terminal blocks are arranged on the three-phase mutual inductor body;

[0008] Among them, a plurality of protective sleeves are slidably arranged on the terminal blocks;

[0009] Among them, the lower surface of the three-phase mutual inductor body is fixedly connected with two fixing frames;

[0010] The positioning mechanism comprises mounting blocks, fixing bolts, a first rubber belt, a second rubber belt, first positioning blocks, second positioning blocks, connecting blocks, first sliding grooves, second sliding grooves, third sliding grooves, limiting blocks, handle balls, inner grooves, sliding blocks and positioning springs.

[0011] Preferably, the two mounting blocks are fixedly connected to the lower surface of the three-phase mutual inductor body.

[0012] A plurality of positioning holes are formed in the two mounting blocks, and a plurality of fixing bolts are slidably sleeved on the plurality of positioning holes.

[0013] The second rubber belt is fixedly connected to the lower surface of the left fixing frame.

[0014] The first rubber belt is fixedly connected to the lower surface of the right fixing frame.

[0015] Preferably, the first positioning block is fixedly connected to one end of the second rubber belt away from the left fixing frame.

[0016] The second positioning block is fixedly connected to one end of the first rubber belt away from the right fixing frame.

[0017] The first sliding groove is formed in the outer surface of the second positioning block close to the first positioning block.

[0018] The connecting block is fixedly connected to the outer surface of the first positioning block close to the second positioning block.

[0019] The connecting block is slidably connected with the first sliding groove.

[0020] Preferably, the second sliding groove is formed in the upper surface of the connecting block, and the second sliding groove extends out of the lower surface of the connecting block.

[0021] The third sliding groove is formed in the lower surface of the second positioning block, and the third sliding groove extends upward to communicate with the interior of the first sliding groove.

[0022] The inner groove is formed in the second positioning block, and the inner groove communicates with the interior of the third sliding groove.

[0023] Preferably, the limiting block is slidably sleeved in the third sliding groove, and the upper surface of the limiting block is an inclined surface.

[0024] The upper surface of the limiting block extends into the first sliding groove through the third sliding groove.

[0025] The limiting block is slidably connected with the second sliding groove.

[0026] The two sliding blocks are fixedly connected to the outer surfaces of the limiting block on the left and right sides.

[0027] The two sliding blocks are slidably connected with the inner groove.

[0028] Preferably, the handle ball is fixedly connected to the lower surface of the limiting block;

[0029] Four positioning springs are fixedly connected to the bottom wall of the inner groove;

[0030] The upper ends of the four positioning springs are fixedly connected to the lower surfaces of the two sliding blocks.

[0031] (Three) beneficial effects

[0032] Compared with the prior art, the utility model provides a kind of integrally cast three-phase combined mutual inductor, with following beneficial effects:

[0033] 1, the integrally cast three-phase combined mutual inductor, first rubber band and second rubber band electrical installation support are simply bound, so that three-phase mutual inductor body cannot easily move upwards, also so that three-phase mutual inductor body cannot easily move, to facilitate the tightening of fixing bolt on electrical installation support, avoid in the process of installing three-phase mutual inductor body in electrical installation support, three-phase mutual inductor body falls or serious displacement, to ensure the stability and safety of three-phase mutual inductor body installation, to facilitate the installation of three-phase mutual inductor body, also facilitate to increase the practicability of integrally cast three-phase combined mutual inductor.

[0034] 2, the integrally cast three-phase combined mutual inductor, when pulling handle ball downwards, so that handle ball moves downwards, to drive limiting block to move downwards, so that limiting block can slide out of second sliding slot at this time, so that connecting block can slide out of first sliding slot, so that first limiting block and second limiting block can be separated, to facilitate the disassembly of positioning mechanism, disassembly is convenient and fast, to increase the practicability of integrally cast three-phase combined mutual inductor. DRAWINGS

[0035] Figure 1 It is the whole structure schematic diagram of the utility model integrally cast three-phase combined mutual inductor;

[0036] Figure 2 It is the fixed frame structure schematic diagram of the utility model;

[0037] Figure 3 It is the second limiting block vertical section view of the utility model;

[0038] Figure 4 It is the A enlarged view of Figure 3

[0039] Figure 5 It is the first limiting block, second limiting block and connecting block vertical section view of the utility model.

[0040] ​In the figure: 1, three-phase mutual inductor body; 2, terminal post; 3, protective sleeve; 4, fixed frame; 5, mounting block; 6, fixed bolt; 7, first rubber belt; 8, second rubber belt; 9, first positioning block; 10, second positioning block; 11, connecting block; 12, first sliding groove; 13, second sliding groove; 14, third sliding groove; 15, limiting block; 16, handle ball; 17, inner groove; 18, sliding block; 19, positioning spring. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0042] Please refer to Figures 1-5 The utility model provides a new technical scheme: an integrated pouring three-phase combined mutual inductor, which comprises a three-phase mutual inductor body 1, and a plurality of terminal posts 2 are arranged on the three-phase mutual inductor body 1.

[0043] Among them, the three-phase mutual inductor body 1 comprises a power transmission space, a standby space, a signal space, a transformer assembly, a core, a primary winding, a secondary winding, a detection capacitor, a phase sequence voltage reduction capacitor, a zero sequence voltage reduction capacitor, a phase sequence fine adjustment capacitor, a zero sequence fine adjustment capacitor, a power output terminal and the like, which are prior art in the existing public patent CN202311021414.8 three-phase voltage transformer, and will not be described here.

[0044] Among them, a plurality of protective sleeves 3 are slidably arranged on the terminal post 2.

[0045] Among them, the lower surface of the three-phase mutual inductor body 1 is fixedly connected with two fixed frames 4.

[0046] Among them, the fixed frame 4 is provided with a positioning mechanism, and the positioning mechanism comprises a mounting block 5, a fixed bolt 6, a first rubber belt 7, a second rubber belt 8, a first positioning block 9, a second positioning block 10, a connecting block 11, a first sliding groove 12, a second sliding groove 13, a third sliding groove 14, a limiting block 15, a handle ball 16, an inner groove 17, a sliding block 18 and a positioning spring 19.

[0047] Further, the two mounting blocks 5 are fixedly connected to the lower surface of the three-phase mutual inductor body 1.

[0048] Among them, a plurality of positioning holes are formed in the two mounting blocks 5, and a plurality of fixed bolts 6 are slidably arranged in the plurality of positioning holes.

[0049] The second rubber belt 8 is fixedly connected to the lower surface of the left fixing frame 4.

[0050] The first rubber belt 7 is fixedly connected to the lower surface of the right fixing frame 4.

[0051] Further, the first positioning block 9 is fixedly connected to one end of the second rubber belt 8 away from the left fixing frame 4.

[0052] The second positioning block 10 is fixedly connected to one end of the first rubber belt 7 away from the right fixing frame 4.

[0053] The first sliding groove 12 is arranged on the outer surface of the second positioning block 10 close to the first positioning block 9.

[0054] The connecting block 11 is fixedly connected to the outer surface of the first positioning block 9 close to the second positioning block 10.

[0055] The connecting block 11 is in sliding connection with the first sliding groove 12.

[0056] Further, the second sliding groove 13 is arranged on the upper surface of the connecting block 11, and the second sliding groove 13 extends out of the lower surface of the connecting block 11.

[0057] The third sliding groove 14 is arranged on the lower surface of the second positioning block 10, and the third sliding groove 14 extends upward to be in communication with the interior of the first sliding groove 12.

[0058] The inner groove 17 is arranged in the second positioning block 10, and the inner groove 17 is in communication with the interior of the third sliding groove 14.

[0059] Further, the limiting block 15 is slidingly sleeved in the third sliding groove 14, and the upper surface of the limiting block 15 is an inclined surface.

[0060] The upper surface of the limiting block 15 extends into the first sliding groove 12 through the third sliding groove 14.

[0061] The limiting block 15 is in sliding connection with the second sliding groove 13.

[0062] Two sliding blocks 18 are fixedly connected to the outer surfaces of the left and right sides of the limiting block 15.

[0063] The two sliding blocks 18 are in sliding connection with the inner groove 17.

[0064] Further, the handle ball 16 is fixedly connected to the lower surface of the limiting block 15.

[0065] Four positioning springs 19 are fixedly connected to the bottom wall of the inner groove 17.

[0066] The upper ends of the four positioning springs 19 are fixedly connected to the lower surfaces of the two sliding blocks 18.

[0067] Further, in use, the three-phase mutual inductor body 1 is placed on the electrical installation support to be installed, then the first positioning block 9 and the second positioning block 10 are located on the lower surface of the electrical installation support, then the first positioning block 9 and the second positioning block 10 are pulled to approach each other, which drives the first rubber band 7 and the second rubber band 8 to stretch and deform, which makes the connecting block 11 slide into the first sliding groove 12, which makes the connecting block 11 slide on the upper surface of the limiting block 15, which drives the limiting block 15 to move downward, which makes the upper surface of the limiting block 15 slide out of the first sliding groove 12, which drives the sliding block 18 to move downward synchronously, which presses the positioning spring 19, which makes the positioning spring 19 deform under the action of the release force of the positioning spring 19, which drives the limiting block 15 to slide into the second sliding groove 13, which fixes the connecting block 11, which also fixes the first positioning block 9 and the second positioning block 10, which prevents the first positioning block 9 and the second positioning block 10 from separating, which prevents the three-phase mutual inductor body 1 from moving upward or moving easily, which facilitates the tightening of the fixing bolt 6 on the electrical installation support, which prevents the three-phase mutual inductor body 1 from falling or moving seriously during installation, which ensures the stability and safety of the installation of the three-phase mutual inductor body 1, which facilitates the installation of the three-phase mutual inductor body 1 and increases the practicability of the integrated cast three-phase combined mutual inductor.

[0068] As mentioned above, when the handle ball 16 is pulled downward, the handle ball 16 moves downward, which drives the limiting block 15 to move downward, which allows the limiting block 15 to slide out of the second sliding groove 13, which allows the connecting block 11 to slide out of the first sliding groove 12, which allows the first positioning block 9 and the second positioning block 10 to separate, which facilitates the disassembly of the positioning mechanism, which increases the practicability of the integrated cast three-phase combined mutual inductor.

[0069] Further, the protective sleeve 3 has a protective effect on the terminal post 2, which prevents the upper end of the terminal post 2 from being damaged by impact, and the upper end of the protective sleeve 3 is provided with a groove communicating with the inside thereof.

[0070] Further, the shell of the three-phase mutual inductor body is integrally cast.

[0071] Working principle: when the device is used, the three-phase mutual inductor body 1 is placed on the electrical installation support that needs to be installed, then the first positioning block 9 and the second positioning block 10 are located on the lower surface of the electrical installation support, then the first positioning block 9 and the second positioning block 10 are pulled to approach each other, which drives the first rubber belt 7 and the second rubber belt 8 to stretch and deform, in the process, the connecting block 11 slides into the first sliding groove 12, in the process, the connecting block 11 and the upper surface of the limiting block 15 are in sliding connection, which drives the limiting block 15 to move downward, so that the upper surface of the limiting block 15 slides out of the first sliding groove 12, in the process, the sliding block 18 moves downward synchronously, which extrudes the positioning spring 19, so that the positioning spring 19 is extruded and deformed, when the first positioning block 9 and the second positioning block 10 are closed, the second sliding groove 13 is located directly above the limiting block 15, at this time, the limiting block 15 slides into the second sliding groove 13 under the release force of the positioning spring 19, and then the limiting block 15 fixes the connecting block 11, so that the first positioning block 9 and the second positioning block 10 cannot be separated, at this time, the first rubber belt 7 and the second rubber belt 8 simply bind the electrical installation support, so that the three-phase mutual inductor body 1 cannot be easily moved upward, and the three-phase mutual inductor body 1 cannot be easily moved, so that the fixing bolt 6 is tightened on the electrical installation support, avoiding the three-phase mutual inductor body 1 from falling or seriously displacing during installation of the three-phase mutual inductor body 1 on the electrical installation support, thereby ensuring the stability and safety of the installation of the three-phase mutual inductor body 1, facilitating the installation of the three-phase mutual inductor body 1, and facilitating the increase of the practicability of the integrally cast three-phase combined mutual inductor.

[0072] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

[0073] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0074] In the description of the utility model, greater than, less than, exceed and the like are understood as not including the number, above, below, within and the like are understood as including the number.If there is a description to the first, second is only used for distinguishing the purpose of technical features, and can not be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the order of indicated technical features.

[0075] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installation, connection should be broadly understood, and the person skilled in the art can reasonably determine the specific meaning of the above words in the utility model combined with the specific content of the technical scheme.

Claims

1. An integrally cast three-phase combined transformer comprising a three-phase transformer body (1), characterized in that: A plurality of terminal posts (2) are arranged on the three-phase mutual inductor body (1); Wherein, a plurality of protective sleeves (3) are slidably arranged on the terminal posts (2); Wherein, the lower surface of the three-phase mutual inductor body (1) is fixedly connected with two fixed frames (4); Wherein, the fixed frame (4) is provided with a positioning mechanism, and the positioning mechanism comprises a mounting block (5), a fixed bolt (6), a first rubber belt (7), a second rubber belt (8), a first positioning block (9), a second positioning block (10), a connecting block (11), a first sliding groove (12), a second sliding groove (13), a third sliding groove (14), a limiting block (15), a handle ball (16), an inner groove (17), a sliding block (18) and a positioning spring (19).

2. An integrally cast three-phase combined transformer according to claim 1, characterized in that: Two mounting blocks (5) are fixedly connected to the lower surface of the three-phase mutual inductor body (1); Wherein, a plurality of positioning holes are formed in the two mounting blocks (5), and a plurality of fixed bolts (6) are slidably arranged in the plurality of positioning holes; Wherein, the second rubber belt (8) is fixedly connected to the lower surface of the left fixed frame (4); Wherein, the first rubber belt (7) is fixedly connected to the lower surface of the right fixed frame (4).

3. An integrally cast three-phase combined transformer according to claim 2, characterized in that: The first positioning block (9) is fixedly connected to one end of the second rubber belt (8) away from the left fixed frame (4); Wherein, the second positioning block (10) is fixedly connected to one end of the first rubber belt (7) away from the right fixed frame (4); Wherein, the first sliding groove (12) is formed on the outer surface of the second positioning block (10) close to the first positioning block (9); Wherein, the connecting block (11) is fixedly connected to the outer surface of the first positioning block (9) close to the second positioning block (10); Wherein, the connecting block (11) is slidably connected with the first sliding groove (12).

4. An integrally cast three-phase combined transformer according to claim 3, characterized in that: The second sliding groove (13) is formed on the upper surface of the connecting block (11), and the second sliding groove (13) extends out of the lower surface of the connecting block (11); Wherein, the third sliding groove (14) is formed on the lower surface of the second positioning block (10), and the third sliding groove (14) extends upward to communicate with the inside of the first sliding groove (12); Wherein, the inner groove (17) is formed in the second positioning block (10), and the inner groove (17) communicates with the inside of the third sliding groove (14).

5. An integrally cast three-phase combined transformer according to claim 4, characterized in that: The limiting block (15) is slidably arranged in the third sliding groove (14), and the upper surface of the limiting block (15) is an inclined surface; Wherein, the upper surface of the limiting block (15) extends into the first sliding groove (12) through the third sliding groove (14); Wherein, the limiting block (15) is slidably connected with the second sliding groove (13); Wherein, two sliding blocks (18) are fixedly connected to the left and right outer surfaces of the limiting block (15); Wherein, the two sliding blocks (18) are slidably connected with the inner groove (17).

6. An integrally cast three-phase combined transformer according to claim 5, characterized in that: The handle ball (16) is fixedly connected to the lower surface of the limiting block (15); Wherein, four positioning springs (19) are fixedly connected to the bottom wall of the inner groove (17); Wherein, the upper ends of the four positioning springs (19) are fixedly connected with the lower surfaces of the two sliding blocks (18).

Images