CN220873370U

CN220873370U - Current transformer device

Info

Publication number: CN220873370U
Application number: CN202322469823.6U
Authority: CN
Inventors: 王志; 张惠卿; 税明建; 庄萍萍
Original assignee: Hangzhou Dahu Transformer Co ltd
Current assignee: Hangzhou Dahuiyineng Electric Power Co.,Ltd.
Priority date: 2023-09-12
Filing date: 2023-09-12
Publication date: 2024-04-30
Anticipated expiration: 2033-09-12

Abstract

The utility model relates to a current transformer device, which comprises a shell, wherein a coil is arranged in the shell, a buffer mechanism for weakening impact force is arranged on the lower surface of the shell, at least two radiating fins are fixed on the upper surface and the lower surface of the shell, a current output port is arranged on the upper surface of the shell, and a radiating mechanism for accelerating heat radiation is arranged on the upper surface and the lower surface of the shell. This current transformer device, buffer gear weakens the impact that current transformer received through the cooperation of first buffer spring and second buffer spring to reduce current transformer's the number of times of rocking through the resilience by a wide margin, make current transformer can be timely resume the normal position after receiving the impact force, reduce the impact to the influence of casing inside coil simultaneously, and prevent through the cooperation of first damping rubber and second damping rubber that buffer spring from forming resonance, ensure current transformer's the number of times of rocking reduction.

Description

Current transformer device

Technical Field

The utility model relates to the technical field of current transformers, in particular to a current transformer device.

Background

The current transformer is an instrument for converting primary side large current into secondary side small current to measure according to an electromagnetic induction principle, the current transformer consists of a closed iron core and a winding, the number of turns of the primary side winding is small, the primary side winding is connected in a circuit of current to be measured in series, and all current of the circuit always flows; the number of turns of the secondary side winding is relatively large, the secondary side winding is connected in series in the measuring instrument and the protection loop, and the secondary side loop is always closed, so that the impedance of the series coil of the measuring instrument and the protection loop is very small, and the working state of the current transformer is close to a short circuit.

Example chinese patent CN 214848001U, this application relates to the field of mutual-inductor, discloses a current transformer device, including casing and interval installation in the coil in the casing, the coil is including measuring with the protection with the outer enamelled copper line of die core with locating, die core is integrated into one piece, this application has following advantage and effect: the shell supports the coils, and the same coil has two functions of measurement and protection through the integrated crystal iron core, so that a plurality of coils are not needed, and the limitation of the current transformer is reduced.

The above-mentioned patent still has certain defect, and this patent makes same coil possess simultaneously and measures with the protection and use two kinds of functions through integrated into one piece's syn brilliant iron core, and the fixed inside that sets up at the casing of coil, can't cushion impact force when current transformer receives the impact, and then can't weaken impact force to the influence of inside coil, receives impact coil many times can receive certain influence and damage even.

Disclosure of utility model

Aiming at the defects of the prior art, the utility model provides a current transformer device which has the advantages of weak impact force and the like, and solves the problem that the impact force cannot be buffered when the current transformer is impacted.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the current transformer device comprises a shell, wherein a coil is arranged in the shell, a buffer mechanism for weakening impact force is arranged on the lower surface of the shell, at least two radiating fins are fixed on the upper surface and the lower surface of the shell, a current output port is arranged on the upper surface of the shell, and a radiating mechanism for accelerating heat radiation is arranged on the upper surface and the lower surface of the shell;

The buffer gear is including fixing two fixed casees at the casing lower surface, two the roof of fixed incasement chamber all is fixed with first buffer spring, two the lower surface of first buffer spring all is fixed with sliding connection at the fly leaf of fixed incasement portion, two the upper surface of fly leaf all is fixed with the first damping rubber that is located first buffer spring inside, two the lower surface of fly leaf all is fixed with the connecting rod, be fixed with the second buffer spring that is located the connecting rod outside between the relative one side of fly leaf and fixed incasement chamber diapire, two the lower fixed surface of connecting rod has the mounting panel, the lower surface of fixed incasement is fixed with the second damping rubber.

Further, the axis of the buffer mechanism instrument shell is symmetrical left and right, and the movable groove for sliding connection of the movable plate is formed in the fixed box.

Further, the connecting hole for the connecting rod to penetrate is formed in the lower surface of the fixed box, and the connecting rod is connected with the fixed box in a sliding mode through the connecting hole.

Further, the height of the first damping rubber is smaller than that of the first buffer spring, and the second damping rubber is in a cuboid shape with hollow inside and missing upper surface and lower surface.

Further, the cooling mechanism comprises connecting screws which are respectively in threaded connection with the upper surface and the lower surface of the shell, the number of the connecting screws is not less than two, fixing blocks are connected to the outer sides of the connecting screws in a threaded manner, connecting plates are fixed to two adjacent opposite sides of the fixing blocks, bellows are fixed to one sides, away from the fixing blocks, of the connecting plates, dust screens are fixed to one sides, away from the connecting plates, of the bellows inner cavities, connecting blocks are fixed to the left side wall and the right side wall of each of the bellows inner cavities, and fans are fixed between two adjacent opposite sides of the connecting blocks.

Further, the shape of bellows is the cuboid that inside cavity just upper surface and lower surface all lose, the screw thread groove that supplies connecting screw threaded connection has all been seted up to the upper surface and the lower surface of casing.

Further, a threaded hole for the connection screw to penetrate is formed in the upper surface of the fixed block, and the connection screw is in threaded connection with the fixed block through the threaded hole.

Compared with the prior art, the technical scheme of the application has the following beneficial effects:

1. this current transformer device, buffer gear weakens the impact that current transformer received through the cooperation of first buffer spring and second buffer spring to reduce current transformer's the number of times of rocking through the resilience by a wide margin, make current transformer can be timely resume the normal position after receiving the impact force, reduce the impact to the influence of casing inside coil simultaneously, and prevent through the cooperation of first damping rubber and second damping rubber that buffer spring from forming resonance, ensure current transformer's the number of times of rocking reduction.

2. According to the current transformer device, the radiating mechanism directly blows air to the radiating fins through the fan, so that the radiating efficiency of the radiating fins for releasing heat is improved when the radiating fins radiate heat, the radiating fins can rapidly release heat in the current transformer to the outer side, meanwhile, dust is prevented from falling on the radiating fins under the cooperation of the dustproof net, the radiating efficiency of the radiating fins is influenced, and the continuous and efficient radiating efficiency of the radiating fins is ensured.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of a cushioning mechanism according to the present utility model;

Fig. 3 is a schematic view of a heat dissipation mechanism according to the present utility model.

In the figure: 1 buffer mechanism, 101 fly leaf, 102 first damping rubber, 103 first buffer spring, 104 fixed box, 105 second buffer spring, 106 connecting rod, 107 second damping rubber, 108 mounting panel, 2 radiating fins, 3 coils, 4 electric current delivery ports, 5 radiating mechanism, 501 bellows, 502 fan, 503 dust screen, 504 connecting block, 505 connecting plate, 506 fixed block, 507 connecting screw, 6 casing.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1, a current transformer device in this embodiment includes a housing 6, a coil 3 is disposed in the housing 6, a buffer mechanism 1 for reducing impact force is disposed on a lower surface of the housing 6, a number of heat dissipation fins 2 are fixed on an upper surface and a lower surface of the housing 6, a current output port 4 is disposed on an upper surface of the housing 6, and heat dissipation mechanisms 5 for accelerating heat dissipation are disposed on the upper surface and the lower surface of the housing 6.

Referring to fig. 2, in order to reduce the impact force on the coil 3, the buffer mechanism 1 in this embodiment includes two fixed boxes 104 fixed on the lower surface of the housing 6, the top walls of the inner cavities of the two fixed boxes 104 are respectively fixed with a first buffer spring 103, the lower surfaces of the two first buffer springs 103 are respectively fixed with a movable plate 101 slidably connected inside the fixed boxes 104, the upper surfaces of the two movable plates 101 are respectively fixed with a first damping rubber 102 located inside the first buffer springs 103, the lower surfaces of the two movable plates 101 are respectively fixed with a connecting rod 106, a second buffer spring 105 located outside the connecting rod 106 is fixed between the movable plates 101 and the opposite sides of the bottom wall of the inner cavity of the fixed box 104, the impact force received by the elastic potential energy of the first buffer springs 103 and the second buffer springs 105 is reduced, and the impact caused by the impact is counteracted by the mutual dragging of the two springs with opposite stress directions, the lower surfaces of the two connecting rods 106 are respectively fixed with a mounting plate 108, the lower surfaces of the fixed with a current transformer through the cooperation of the mounting plate 108 and bolts, the lower surfaces of the fixed with a second damping rubber 107, and the first damping rubber 103 and the second damping springs 107 are formed by the cooperation of the first damping springs 105 and the second damping springs 107.

The fixed case 104 moves downward while compressing the first buffer spring 103 and driving the second damping rubber 107 to move downward, while the movable plate 101 slides upward inside the fixed case 104 and lifts the second buffer spring 105, so that the spring is stressed to deform and weaken impact force intensity in the deformation process to weaken the impact on the coil 3.

In this embodiment, the central axis of the housing 6 of the buffering mechanism 1 is symmetric about the symmetry line, the movable slot for sliding connection of the movable plate 101 is provided in the fixed box 104, the connecting hole for the connecting rod 106 to penetrate is provided on the lower surface of the fixed box 104, the connecting rod 106 is slidably connected with the fixed box 104 through the connecting hole, the height of the first damping rubber 102 is smaller than that of the first damping spring 103, and the shape of the second damping rubber 107 is a cuboid with hollow inside and missing upper surface and lower surface.

It should be noted that, the buffer mechanism 1 weakens the impact on the current transformer through the cooperation of the first buffer spring 103 and the second buffer spring 105, and greatly reduces the shaking times of the current transformer through the resilience force, so that the current transformer can be restored to the original position in time after receiving the impact force, and meanwhile, the impact on the coil 3 inside the shell 6 is reduced.

Referring to fig. 3, in order to improve the heat dissipation effect, the heat dissipation mechanism 5 in this embodiment includes at least two connection screws 507 respectively screwed on the upper surface and the lower surface of the housing 6, at least two connection screws 507 are screwed on the outer sides of the at least two connection screws 507, two adjacent connection blocks 506 are fixed with connection plates 505 on opposite sides, at least two heat dissipation fins 2 are divided into four groups, each group of heat dissipation fins 2 is located between opposite sides of the two adjacent connection plates 505, a bellows 501 is fixed on a side of the two adjacent connection plates 505 away from the connection plates 506, a dust screen 503 is fixed on a side of the bellows 501 away from the connection plates 505, connection blocks 504 are fixed on left and right side walls of an inner cavity of the bellows 501, and a fan 502 is fixed between opposite sides of the two adjacent connection blocks 504.

In this embodiment, the shape of bellows 501 is the cuboid that inside cavity and upper surface and lower surface all lack, and the screw thread groove that supplies connecting screw 507 threaded connection has all been seted up to the upper surface and the lower surface of casing 6, and the screw hole that supplies connecting screw 507 to run through has been seted up to the upper surface of fixed block 506, and connecting screw 507 passes through screw hole and fixed block 506 threaded connection, through the cooperation of connecting screw 507 and screw thread groove and screw hole convenience of staff's taking off cooling body 5 and maintaining fan 502 to and clear up or change dust screen 503.

It should be noted that, the heat dissipation mechanism 5 directly blows air to the heat dissipation fins 2 through the fan 502, so as to accelerate the efficiency of releasing heat while dissipating heat, so that the heat dissipation fins 2 can quickly release heat in the current transformer to the outside, and meanwhile, dust is prevented from falling on the heat dissipation fins 2 under the cooperation of the dust screen 503 to affect the heat dissipation efficiency of the heat dissipation fins 2, and the continuous and efficient heat dissipation efficiency of the heat dissipation fins 2 is ensured.

The working principle of the embodiment is as follows:

(1) When the current transformer shell 6 is impacted, the fixed box 104 is driven to move downwards, the first buffer spring 103 is compressed while the fixed box 104 moves downwards, the second damping rubber 107 is driven to move downwards, meanwhile, the movable plate 101 slides upwards in the fixed box 104, the second buffer spring 105 is pulled upwards, the fixed box 104 is pushed upwards by the resilience force generated after the first buffer spring 103 is compressed, the fixed box 104 is pulled upwards by the second buffer spring 105, accordingly, the fixed box 104 moves towards the original position and pushes the current transformer shell 6 to move towards the original position, the impact on the current transformer is weakened by the buffer mechanism 1 through the cooperation of the first buffer spring 103 and the second buffer spring 105, the shaking frequency of the current transformer is greatly reduced through the resilience force, the current transformer can be restored to the original position in time after being impacted, and the influence of the impact on the coil 3 in the shell 6 is reduced.

(2) The current transformer starts and simultaneously pneumatic fan 502, fan 502 drives external wind and gets into the inside of bellows 501, make the air filter the dust in the air when passing dust screen 503 simultaneously, and blow the air that does not have the dust to radiating fin 2, make radiating fin 2 add the release heat, thereby improve the radiating efficiency of current transformer, thereby radiating mechanism 5 directly bloies radiating fin 2 through fan 502 and accelerate its radiating efficiency, thereby radiating the radiating efficiency of releasing heat, make radiating fin 2 can be fast with the heat release in the current transformer to the outside, prevent the dust to drop on radiating fin 2 under the cooperation of dust screen 503 simultaneously and influence the radiating efficiency of radiating fin 2 itself, the radiating efficiency of radiating fin 2 continuous efficient has been guaranteed.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made hereto without departing from the spirit and principles of the present utility model.

Claims

1. Current transformer arrangement, comprising a housing (6), characterized in that: the coil (3) is arranged in the shell (6), a buffer mechanism (1) for weakening impact force is arranged on the lower surface of the shell (6), at least two radiating fins (2) are fixed on the upper surface and the lower surface of the shell (6), a current output port (4) is arranged on the upper surface of the shell (6), and a radiating mechanism (5) for accelerating heat radiation is arranged on the upper surface and the lower surface of the shell (6);

The utility model provides a damping mechanism (1) is including fixing two fixed casees (104) at casing (6) lower surface, two the roof of fixed casees (104) inner chamber all is fixed with first buffer spring (103), two the lower surface of first buffer spring (103) all is fixed with sliding connection at fixed inside fly leaf (101) of casees (104), two the upper surface of fly leaf (101) all is fixed with first damping rubber (102) that are located inside first buffer spring (103), two the lower surface of fly leaf (101) all is fixed with connecting rod (106), be fixed with second buffer spring (105) that are located the connecting rod (106) outside between the side that the fly leaf (101) is opposite with fixed casees (104) inner chamber diapire, two the lower surface of connecting rod (106) is fixed with mounting panel (108), the lower surface of fixed with second damping rubber (107).

2. A current transformer arrangement according to claim 1, characterized in that: the central axis of the buffer mechanism (1) instrument shell (6) is symmetric left and right, and the inside of the fixed box (104) is provided with a movable groove for sliding connection of the movable plate (101).

3. A current transformer arrangement according to claim 1, characterized in that: the lower surface of the fixed box (104) is provided with a connecting hole for the connecting rod (106) to penetrate through, and the connecting rod (106) is in sliding connection with the fixed box (104) through the connecting hole.

4. A current transformer arrangement according to claim 1, characterized in that: the height of the first damping rubber (102) is smaller than that of the first buffer spring (103), and the second damping rubber (107) is in a cuboid shape with hollow inside and missing upper surface and lower surface.

5. A current transformer arrangement according to claim 1, characterized in that: the heat dissipation mechanism (5) comprises connecting screws (507) which are respectively in threaded connection with the upper surface and the lower surface of the shell (6) and are not less than two in number, fixing blocks (506) are connected with the outer sides of the connecting screws (507) in equal threads, connecting plates (505) are fixed on the opposite sides of the fixing blocks (506), bellows (501) are fixed on the side, away from the fixing blocks (506), of the connecting plates (505), dust screens (503) are fixed on the side, away from the connecting plates (505), of the bellows (501), connecting blocks (504) are fixed on the left side wall and the right side wall of an inner cavity of the bellows (501), and fans (502) are fixed between the opposite sides of the connecting blocks (504).

6. A current transformer arrangement according to claim 5, wherein: the bellows (501) is in a cuboid shape with hollow inside and missing upper surface and lower surface, and the upper surface and the lower surface of the shell (6) are provided with thread grooves for connecting screws (507) in threaded connection.

7. A current transformer arrangement according to claim 5, wherein: the upper surface of the fixed block (506) is provided with a threaded hole for the connecting screw (507) to penetrate through, and the connecting screw (507) is in threaded connection with the fixed block (506) through the threaded hole.