Low-voltage mutual inductor

Abstract

The utility model relates to the technical field of low-voltage mutual inductors, in particular to a low-voltage mutual inductor which comprises a base, an outer shell is connected to the middle of the upper end of the base in a clamped mode, a dust cleaning assembly is fixedly connected to one side of the upper end of the base and used for sweeping dust on the side wall of the shell, and the dust cleaning assembly comprises a shaft seat which is fixedly connected to the upper end of the base. A rotating shaft is rotationally installed on the shaft seat, fixing rods are fixedly connected to the two ends of the rotating shaft, cleaning rods are fixedly connected to the ends of the fixing rods, and the two cleaning rods are used for sweeping dust on the two sides of the shell correspondingly; the dust cleaning assembly is installed on the base of the mutual inductor, when the rotating shaft is electrically controlled to rotate on the shaft base, the cleaning rods are driven to rotate around the rotating shaft through the fixing rods, the two sets of cleaning rods sweep dust on the two sides of the mutual inductor shell, large-area dust on the mutual inductor shell is removed, and the situation that the mutual inductor shell covers the dust in a large area, and heat dissipation is affected is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to low -voltage mutual inductor field, concretely is a low -voltage mutual inductor. BACKGROUND

[0002] Low -voltage mutual inductor is used in industry below 1KV, 36V above alternating -current mutual inductor, according to proportional transformation voltage or current, protect electric equipment, and low -voltage mutual inductor is mainly composed of the shell of outside, the core and winding group of inside.

[0003] The existing low -voltage mutual inductor such as patent application number " CN201120399089. 5 " proposes a current transformer, including epoxy resin main body, two secondary wiring terminals, boss etc. structure, sets up the phenomenon that bar and bump prevent secondary lead connection wire end and appears short -circuit, improves electrical insulation and safety.

[0004] But the prior art has defects, mutual inductor generates heat when using, and the heat is dissipated outward through the shell, the mutual inductor is installed in fixed position and does not move for a long time, and the surface is easy to cover dust in a large area, the low -voltage mutual inductor of prior art can not clean the dust on the surface of shell, leads to dust accumulation, greatly reduces the heat dissipation efficiency of shell, therefore, a low -voltage mutual inductor is proposed. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a low -voltage mutual inductor to solve the problems in the above background.

[0006] The purpose of the utility model can be realized by the following technical schemes:

[0007] A low -voltage mutual inductor, including base, the middle part of the upper end of base is clamped with shell, and one side of the upper end of base is fixedly connected with dust cleaning assembly, and the dust cleaning assembly is used for removing the dust on the side wall of shell body, and the dust cleaning assembly includes shaft seat, the shaft seat is fixedly connected on the upper end of base, the shaft seat is rotatably installed with the pivot shaft, the pivot shaft is fixedly connected with the fixed rod on both ends, the fixed rod is fixedly connected with the cleaning rod on the end, and the two groups of cleaning rods are used for removing the dust on both sides of shell body respectively.

[0008] Preferably, the pivot shaft is fixedly connected with the rotary disc on both ends, the fixed rod is fixedly connected on the side wall of rotary disc, the side wall of rotary disc is fixedly connected with the fixed block, and the included angle between the fixed block and the fixed rod is obtuse.

[0009] Preferably, the side of base is vertically fixedly connected with the support, the support is rotatably installed with the driving disc on one side, the driving disc and the rotary disc are on the same vertical plane, the driving disc is fixedly connected with the driving block on one side, and the driving block and the fixed block are drivingly cooperated.

[0010] Preferably, a groove is formed on one side of the upper end of the base, a motor is fixedly connected in the groove, and an output end of the motor is fixedly connected with a gear, which is rotatably installed on the inner wall of the groove away from the motor.

[0011] The driving disc is fixedly connected with a gear disc on the side close to the motor, the gear disc is coaxial with the rotating disc, and the diameter of the gear disc is smaller than that of the rotating disc.

[0012] Preferably, an installation groove is formed in the middle of the base, the lower end of the shell is inserted into the installation groove, sliding grooves are formed in the base at positions on both sides of the installation groove, and a bolt is slidably connected in the sliding grooves.

[0013] A spring is fixedly connected between one end of the bolt and the inner wall of the sliding groove, the spring is in a compressed state, a pull plate is fixedly connected to one end of the bolt, and one end of the pull plate penetrates through the base and is in clamping engagement with the side wall of the base.

[0014] Preferably, a support frame for supporting the cleaning rods is fixedly connected to the upper end of the base, and an installation plate is fixedly connected to the side wall of the base.

[0015] The utility model discloses the beneficial effects of:

[0016] 1. The utility model discloses a dust cleaning assembly is installed on the base of the mutual inductor, when the electric control rotating shaft rotates on the shaft support, drives the cleaning rod to rotate around the rotating shaft through the fixed rod, makes two group cleaning rods to mutual inductor shell both sides sweep dust, removes the dust of mutual inductor shell's large area, prevents mutual inductor shell large area to cover dust and influences heat dissipation.

[0017] 2. The utility model discloses a base and shell of mutual inductor are assembled by the mode of clamping installation, and the base and shell are easy to split, thereby facilitating the overhaul of the parts inside the shell. DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, for those skilled in the art, other drawings can also be obtained without creative labor according to these drawings.

[0019] Figure 1 It is the overall structure schematic diagram of low voltage mutual inductor of the utility model;

[0020] Figure 2 It is the base structure schematic diagram of the utility model;

[0021] Figure 3 It is the base cross section structure schematic diagram of the utility model;

[0022] Figure 4 is a schematic view of a driving disc and a turntable driving structure of the utility model;

[0023] The reference signs in the drawings are as follows:

[0024] 1, base; 2, mounting groove; 3, shell; 4, sliding groove; 5, pull plate; 6, bolt; 7, spring; 8, shaft seat; 9, rotating shaft; 10, turntable; 11, fixed block; 12, support; 13, driving disc; 14, gear disc; 15, driving block; 16, fixed rod; 17, cleaning rod; 18, support frame; 19, gear; 20, motor; 21, mounting plate. DETAILED DESCRIPTION

[0025] 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.

[0026] A low-voltage transformer, as shown in Figures 1-4 , comprises a base 1, the upper end of the base 1 is provided with a shell 3 in the middle, one side of the upper end of the base 1 is fixedly connected with a dust cleaning assembly, the dust cleaning assembly is used for sweeping dust on the side wall of the shell, and the dust cleaning assembly comprises a shaft seat 8, the shaft seat 8 is fixedly connected to the upper end of the base 1, a rotating shaft 9 is rotatably installed on the shaft seat 8, fixed rods 16 are fixedly connected to both ends of the rotating shaft 9, cleaning rods 17 are fixedly connected to the ends of the fixed rods 16, and the two groups of cleaning rods 17 are used for sweeping dust on both sides of the shell respectively.

[0027] By installing the dust cleaning assembly on the base 1 of the transformer, the dust cleaning assembly is located above the base 1 when not running, a small acute angle is formed between the cleaning rods 17 and the base 1, the dust cleaning assembly is controlled to run every certain period of time, when working, the rotating shaft 9 is controlled to rotate on the shaft seat 8, the cleaning rods 17 are driven to rotate around the rotating shaft 9 through the fixed rods 16, the two groups of cleaning rods 17 sweep dust on both sides of the shell 3 of the transformer, and a large area of dust on the shell 3 of the transformer is removed, so that the shell 3 of the transformer is prevented from being covered with a large area of dust to affect heat dissipation.

[0028] As shown in Figures 1-4 , the rotating shaft 9 is fixedly connected with a turntable 10 at both ends, the fixed rods 16 are fixedly connected to the side wall of the turntable 10, the side wall of the turntable 10 is fixedly connected with a fixed block 11, and the included angle between the fixed block 11 and the fixed rods 16 is obtuse.

[0029] The rotating shaft 9 drives the rotating disc 10 to rotate, the fixed block 11 is used for driving the rotating disc 10 to rotate, the fixed block 11 and the fixed rod 16 are not located on the same straight line, the resistance of the fixed block 11 driving the rotating disc 10 to rotate is reduced, when the cleaning rod 17 does not work, one end is lowered under the influence of gravity, the rotating disc 10 rotates, and the fixed block 11 moves upwards.

[0030] As shown in Figures 1-4 , one side of the base 1 is vertically and fixedly connected with a support 12, one side of the support 12 is rotatably connected with a driving disc 13, the driving disc 13 is located on the same vertical plane as the rotating disc 10, one side of the driving disc 13 is fixedly connected with a driving block 15, and the driving block 15 is drivingly matched with the fixed block 11.

[0031] The driving disc 13 rotates to drive the driving block 15 to rotate, when the driving block 15 rotates to a certain position, the driving block 15 abuts against the fixed block 11 on the rotating disc 10, then the driving block 15 extrudes the fixed block 11 with the rotation of the driving disc 13, the fixed block 11 moves downwards around the axis of the rotating disc 10, the fixed block 11 drives the rotating disc 10 to rotate, when the driving disc 13 rotates to a certain angle, the driving block 15 is separated from the fixed block 11, the fixed block 11 loses external driving force, the cleaning rod 17 descends to drive the rotating disc 10 to rotate, the fixed block 11 moves upwards, then the driving disc 13 rotates to the position where the driving block 15 abuts against the fixed block 11 again, so as to drive the rotating disc 10 to rotate again, through the driving disc 13 and the driving block 15, the rotating disc 10 is intermittently driven to rotate by a certain angle, so that the cleaning rod 17 reciprocatingly sweeps the dust on the side wall of the shell.

[0032] As shown in Figures 1-2 , a recess is formed in one side of the upper end of the base 1, a motor 20 is fixedly connected in the recess, the output end of the motor 20 is fixedly connected with a gear 19, and the side, away from the motor 20, of the gear 19 is rotatably connected with the inner wall of the recess.

[0033] The side, close to the motor 20, of the driving disc 13 is fixedly connected with a toothed disc 14, the toothed disc 14 is coaxial with the rotating disc 10, and the diameter of the toothed disc 14 is smaller than that of the rotating disc 10; the gear 19 is located below the toothed disc 14, the gear 19 is in meshing transmission with the teeth on the side wall of the toothed disc 14, and the toothed disc 14 is smaller than the driving disc 13 to prevent the toothed disc 14 from contacting the rotating disc 10.

[0034] The motor 20 (model TF-N20F) drives the gear 19 to rotate, the gear 19 drives the toothed disc 14 in meshing transmission, so that the driving disc 13 rotates.

[0035] As shown in Figures 2-3 , an installation groove 2 is formed in the middle of the base 1, the lower end of the shell 3 is inserted into the installation groove 2, sliding grooves 4 are formed in the positions, inside the base 1, on both sides of the installation groove 2, and a bolt 6 is slidably connected in the sliding grooves 4; the bolt 6 is in clamping transmission with the lower end of the shell 3.

[0036] A spring 7 is fixedly connected between one end of the pin 6 and the inner wall of the slide groove 4. The spring 7 is in a compressed state. A pull plate 5 is fixedly connected to one end of the pin 6. One end of the pull plate 5 passes through the base 1 and is engaged with the side wall of the base 1.

[0037] By assembling the base 1 and housing 3 of the current transformer using a snap-fit ​​installation method, the base 1 and housing 3 can be easily separated, thus facilitating the maintenance of the internal parts of the housing 3.

[0038] When installing the outer casing 3 and the base 1, pull the pull plate 5, and the pin 6 is located in the slide groove 4. Align the lower end of the outer casing 3 with the mounting groove 2. A sealing strip can be installed in the mounting groove 2 to increase the sealing performance. Release the pull plate 5, and the spring 7 will squeeze the pin 6, so that the pin 6 is inserted into the lower end of the outer casing 3. The spring 7 is always in a compressed state and always in a state of squeezing the pin 6. One end of the pull plate 5 is located outside the base 1 and is engaged with the side wall of the base 1, which makes it easy to pull the pull plate 5.

[0039] like Figure 1 As shown, a support frame 18 for supporting the cleaning rod 17 is fixedly connected to the upper end of the base 1, and an mounting plate 21 is fixedly connected to the side wall of the base 1.

[0040] The support frame 18 prevents the cleaning rod 17 from contacting the base 1, causing the cleaning rod 17 to tilt upwards, reducing the difficulty for the turntable 10 to rotate the cleaning rod 17. The mounting plate 21 is used to mount the base 1 on a flat surface.

[0041] The working principle of the low-voltage current transformer provided by this utility model is as follows:

[0042] By installing a dust removal assembly on the base 1 of the current transformer, the electric control motor 20 runs during operation. The motor 20 drives the drive disk 13 to rotate via the gear 19 and toothed disc 14. The drive disk 13 drives the turntable 10 to rotate via the drive block 15 and the fixed block 11. The turntable 10 rotates on the shaft 8 via the rotating shaft 9. The fixed rod 16 drives the cleaning rod 17 to rotate around the rotating shaft 9, so that the two cleaning rods 17 sweep the dust on both sides of the current transformer housing 3, remove the large area of ​​dust on the current transformer housing 3, and prevent the large area of ​​dust covering the current transformer housing 3 from affecting heat dissipation.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A low voltage transformer comprising a base (1), characterized in that, The base (1) has a housing (3) attached to the middle of its upper end. A dust removal component is fixed to one side of the upper end of the base (1). The dust removal component is used to remove dust from the side wall of the housing. The dust removal component includes a bearing seat (8). The bearing seat (8) is fixed to the upper end of the base (1). A rotating shaft (9) is rotatably mounted on the bearing seat (8). Fixed rods (16) are fixed to both ends of the rotating shaft (9). Cleaning rods (17) are fixed to the ends of the fixed rods (16). The two sets of cleaning rods (17) are used to remove dust from both sides of the housing.

2. A low-voltage transformer according to claim 1, characterized in that, Both ends of the rotating shaft (9) are fixed to a turntable (10), a fixing rod (16) is fixed to the side wall of the turntable (10), and a fixing block (11) is fixed to the side wall of the turntable (10). The included angle between the fixing block (11) and the fixing rod (16) is an obtuse angle.

3. A low-voltage transformer according to claim 2, characterized in that, A bracket (12) is vertically fixed to one side of the base (1), and a drive disk (13) is rotatably installed on one side of the bracket (12). The drive disk (13) and the turntable (10) are on the same vertical plane. A drive block (15) is fixed to one side of the drive disk (13), and the drive block (15) and the fixed block (11) drive each other.

4. A low-voltage transformer according to claim 3, characterized in that, The base (1) has a groove on one side of its upper end, and a motor (20) is fixedly connected in the groove. A gear (19) is fixedly connected to the output end of the motor (20). The gear (19) is rotatably installed on the side away from the motor (20) and the inner wall of the groove. The drive disk (13) has a toothed disc (14) fixed to the side near the motor (20). The toothed disc (14) is coaxial with the turntable (10), and the diameter of the toothed disc (14) is smaller than the diameter of the turntable (10). The gear (19) is located below the toothed disc (14), and the gear (19) meshes with the teeth of the side wall of the toothed disc (14) for transmission.

5. A low-voltage transformer according to claim 1, characterized in that, The base (1) has an installation groove (2) in the middle, and the lower end of the outer shell (3) is fitted and inserted into the installation groove (2). The base (1) has sliding grooves (4) on both sides of the installation groove (2), and a pin (6) is slidably connected in the sliding groove (4). The pin (6) is engaged with the lower end of the outer shell (3). A spring (7) is fixed between one end of the pin (6) and the inner wall of the slide groove (4). The spring (7) is in a compressed state. A pull plate (5) is fixed to one end of the pin (6). One end of the pull plate (5) passes through the base (1) and is engaged with the side wall of the base (1).

6. A low-voltage transformer according to claim 1, characterized in that, The upper end of the base (1) is fixedly connected to a support frame (18) for supporting the cleaning rod (17), and the side wall of the base (1) is fixedly connected to a mounting plate (21).

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