CN218123110U - Magnetic shielding low-frequency transformer - Google Patents

Abstract

The utility model discloses a magnetic screen low frequency transformer, including base, shell and iron core, the outside of base is provided with mounting structure, and one side of base is fixed with the shell, and the top of shell is provided with dustproof construction, and the internally mounted of shell has bakelite skeleton, and the both ends of iron core one side all are provided with heat conduction structure. The utility model discloses an in taking dust cover area and moving four group's locating levers and insert four group's slots respectively, simultaneously four group's fixture blocks receive the extrusion compression expanding spring of shell outer wall and get into the locating lever in, the locating lever of being convenient for drives the smooth and easy removal of fixture block to the position that aligns with draw-in groove in the shell, make the expanding spring kick-back promote in the fixture block inserts the shell fix a position the locating lever to the dust cover, guarantee the effect that the dust cover separates the dirt, the dust separation function of being convenient for of this device has been realized from this, the functionality of this device has been improved, guarantee the clean and tidy nature on device surface, prevent that the dust from piling up the radiating effect of influence device use.

Description

Magnetic shielding low-frequency transformer

Technical Field

The utility model relates to a low frequency transformer technical field, in particular to magnetic screen low frequency transformer.

Background

The transformer utilizes the principle of electromagnetic induction to change the apparatus of the alternating voltage, it is the basic equipment of power transmission and distribution, is applied to fields such as industry, agriculture, traffic, city community extensively, the apparatus is generally divided into low-frequency transformer and high-frequency transformer, the high-frequency transformer is not different from low-frequency transformer in principle, but because the frequency of high frequency and low frequency is different, the iron core that the transformer uses is different, the low-frequency transformer generally uses the silicon steel sheet of the high magnetic permeability, the high-frequency transformer uses the high-frequency ferrite magnetic core, wherein the low-frequency transformer is used for spreading signal voltage and signal power, can also realize the impedance match between the circuits, have the isolating function to the direct current, in order to guarantee the magnetic shielding effect of the existing transformer in the course of using, therefore, it is very necessary to use the low-frequency transformer with magnetic shielding;

1. when the alternating voltage needs to be changed, the common low-frequency transformer needs to be additionally connected with a radiator for accelerating heat dissipation, so that the operation of the low-frequency transformer is complex during installation and use, and the convenience of installation and heat dissipation of the device is seriously influenced;

2. quick dustproof of being not convenient for to be not convenient for carry out the dust removal effect to the low frequency transformer in the transportation, and can't guarantee its surperficial clean and tidy nature to needs radiating iron core, traditional low frequency transformer is the silicon steel sheet of high magnetic permeability, and it is too much to accumulate when the surface dust, not only makes the device clean and tidy degree reduce like this, and influences the radiating effect of iron core, leads to the emergence of conflagration, thereby makes the practicality of device reduce.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

An object of the utility model is to provide a magnetic screen low frequency transformer to propose the dustproof problem of being not convenient for in solving above-mentioned background art.

(II) contents of the utility model

In order to solve the technical problem, the utility model provides a following technical scheme: the utility model provides a magnetic screen low frequency transformer, includes base, shell and iron core, the outside of base is provided with mounting structure, one side of base is fixed with the shell, and the top of shell is provided with dustproof construction, the internally mounted of shell has the bakelite skeleton, and the top of bakelite skeleton one side all installs the copper terminal, the internally mounted of bakelite skeleton has the iron core, the outside cover of iron core is equipped with the winding, and the outside cover of winding is equipped with the magnetic screen cover, the both ends of iron core one side all are provided with heat conduction structure, dustproof construction includes shield, locating lever, fixture block, expanding spring and slot, the inside at the shell is all seted up to the slot, the inside of slot is inserted and is equipped with the locating lever, and the inside of locating lever is provided with expanding spring, one side of expanding spring is fixed with the fixture block, the top of locating lever is fixed with the shield.

Use this technical scheme's magnetic screen low frequency transformer, cover through the shield of taking and carry out the dust removal on the surface of shell, the shield drives four group locating levers and inserts four group slots respectively simultaneously, four group fixture blocks receive the extrusion compression expanding spring of shell outer wall and get into in the locating lever simultaneously, the locating lever of being convenient for drives the smooth and easy removal of fixture block to the position that aligns with shell internal groove, make four group expanding spring kick-backs and promote the fixture block and insert in the shell, fix the locating lever and fix a position the shield in the slot, prevent that the shield from rocking the slope, influence the effect that the shield separated dust.

Preferably, the mounting structure includes mount pad, spout, connecting rod and fixed block, the spout cover is established in the outside of base, the bottom mounting of spout has the mount pad, the inside on spout top is all inserted and is equipped with the connecting rod, and the bottom mounting of connecting rod has the fixed block. The movable base is driven by the movable shell to align and insert into the two sliding grooves, the two groups of bases are respectively driven by the two groups of bases to move along the inner walls of the sliding grooves to the positions aligned with the fixing blocks to stop, then the four groups of connecting rods are sequentially rotated to push the fixing blocks to be inserted into the base through threaded engagement to be tightly pressed and fixed, and the stability of the shell connected with the base is enhanced through the four groups of fixing blocks.

Preferably, an internal thread is formed on the inner wall of the sliding groove, an external thread is formed on the outer wall of the connecting rod, and the sliding groove and the connecting rod form a rotating structure through the meshing of the internal thread and the external thread. Make pivoted connecting rod through the inner wall downstream of thread engagement along the spout, it is fixed to be convenient for promote the fixed block to compress tightly the base in inserting the base, prevents that the base from rocking in the spout.

Preferably, the sliding chute and the base form a sliding structure, so that the base can move rapidly in the sliding chute along the inner wall of the sliding chute, and the sliding chutes are symmetrically distributed on two sides of the top end of the mounting seat relative to the vertical center line of the mounting seat. Two groups of bases are respectively fixed in the two groups of symmetrically distributed chutes, so that the stability of the bases can be conveniently enhanced.

Preferably, the fixture block and the telescopic spring form a telescopic structure, so that the fixture block moves along with the telescopic spring, the fixture block can be conveniently inserted into or separated from the inner part of the shell along with the telescopic spring, and the fixture block and the telescopic spring are welded and integrated. The fixture block is connected with the telescopic spring more tightly, so that the fixture block is prevented from separating from the telescopic spring.

Preferably, the heat conduction structure comprises a heat conduction plate, radiating fins and supporting blocks, the heat conduction plate is fixed on one side of the iron core, the radiating fins are fixed on the top end of the heat conduction plate, and the supporting blocks are fixed on one side of the radiating fins. The heat on the surface of the iron core is led out through the two groups of heat-conducting plates, and then the heat led out by the heat-conducting plates is absorbed by the plurality of groups of radiating fins and is quickly dissipated, so that the radiating speed of the iron core is convenient to strengthen, the normal operation of the device is ensured, the adjacent two groups of radiating fins are supported through the plurality of groups of supporting blocks, and the radiating fins are prevented from being attached to another adjacent group of radiating fins due to stress bending, and the radiating effect is influenced.

Preferably, the radiating fins are arranged on the top end of the heat conducting plate in a plurality of groups, and the radiating fins of the plurality of groups are distributed on the top end of the heat conducting plate at equal intervals. The radiating fins are uniformly distributed on the surface of the heat conducting plate, so that heat conducted out by the heat conducting plate can be quickly dissipated, and the damage of the iron core due to overhigh temperature can be prevented.

(III) advantageous effects

Compared with the prior art, the beneficial effects of the utility model are that: the magnetic shielding low-frequency transformer is reasonable in structure and has the following advantages:

(1) The dust cover is taken to drive the four groups of positioning rods to be respectively inserted into the four groups of slots, and meanwhile, the four groups of clamping blocks are extruded by the outer wall of the shell to compress the telescopic springs to enter the positioning rods, so that the positioning rods can drive the clamping blocks to smoothly move to positions aligned with the clamping grooves in the shell, the telescopic springs can rebound to push the clamping blocks to be inserted into the shell to fix the positioning rods to position the dust cover, and the dust-proof effect of the dust cover is ensured, so that the dust-proof function of the device is facilitated, the functionality of the device is improved, the tidiness of the surface of the device is ensured, and the effect of preventing dust accumulation from influencing the heat dissipation of the device during use is avoided;

(2) The two groups of bases are driven to be aligned and inserted into the two groups of sliding grooves through the movable shell, the two groups of bases respectively drive the two groups of inserting holes to move to the positions aligned with the fixed blocks along the inner walls of the sliding grooves to stop, then the four groups of connecting rods are sequentially rotated to push the fixed blocks to be inserted into the bases through threaded engagement to compress and fix the fixed blocks, and the stability of the shell is convenient to strengthen, so that the mounting and fixing functions of the device are realized, the convenience of the device is improved, the stability of the device is convenient to improve, and the mounting difficulty is reduced;

(3) Derive the heat on iron core surface through two sets of heat-conducting plates, the heat that the heat-conducting plate was derived is absorbed to the multiunit fin immediately and is dispersed away fast, be convenient for strengthen the radiating speed of iron core, support adjacent two sets of fin through the multiunit supporting shoe, prevent that the fin atress from buckling with adjacent another group fin laminating, influence radiating effect, the heat conduction function of being convenient for of this device has been realized from this, guarantee the normal operating of device, prevent the high damage of high temperature.

Drawings

In order to clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the description below are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic front view of the present invention;

fig. 2 is a schematic top view of the cross-sectional structure of the present invention;

fig. 3 is a schematic view of a front sectional structure of the mounting structure of the present invention;

FIG. 4 is a schematic view of the front cross-sectional structure of the dustproof structure of the present invention;

fig. 5 is a schematic diagram of a three-dimensional sectional structure of the heat conducting structure of the present invention.

The reference numerals in the figures illustrate: 1. a base; 2. a mounting structure; 201. a mounting seat; 202. a chute; 203. a connecting rod; 204. a fixed block; 3. a housing; 4. a dust-proof structure; 401. a dust cover; 402. positioning a rod; 403. a clamping block; 404. a tension spring; 405. inserting slots; 5. a bakelite framework; 6. a winding; 7. a magnetic shielding sleeve; 8. a copper terminal; 9. a thermally conductive structure; 901. a heat conducting plate; 902. a heat sink; 903. a support block; 10. and (3) an iron core.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example one

Please refer to fig. 1-5, the utility model provides a magnetic shielding low frequency transformer, including base 1, shell 3 and iron core 10, the outside of base 1 is provided with mounting structure 2, one side of base 1 is fixed with shell 3, and the top of shell 3 is provided with dustproof construction 4, the internally mounted of shell 3 has bakelite skeleton 5, and copper terminal 8 is all installed on the top of bakelite skeleton 5 one side, the internally mounted of bakelite skeleton 5 has iron core 10, the outside cover of iron core 10 is equipped with winding 6, and the outside cover of winding 6 is equipped with magnetic shielding cover 7, the both ends of iron core 10 one side all are provided with heat conduction structure 9, dustproof construction 4 includes shield 401, locating lever 402, fixture block 403, expanding spring 404 and slot 405, slot 405 all sets up in the inside of shell 3, the inside of slot 405 is inserted and is equipped with locating lever 402, and the inside of locating lever 402 is provided with expanding spring 404, one side of expanding spring 404 is fixed with fixture block 403, the top of locating lever 402 is fixed with dust cap fixture block 401, fixture block 403 and expanding spring 404 constitute expanding structure, fixture block 403 and expanding spring 404 are welding integration.

The working principle of the magnetic shielding low-frequency transformer based on the first embodiment is as follows: the iron core 10 is made of silicon steel sheets with high magnetic permeability, meanwhile, the magnetic shielding sleeve 7 on the surface of the iron core 10 is made of magnetic materials, the device has the characteristic of magnetic shielding, the mounting structure 2 is connected with the base 1 to fix the shell 3, then the copper terminal 8 is connected with a circuit, voltage change is carried out through the winding 6, when the device is in transportation or in idle, dust is separated by taking the dust cover 401 to cover the surface of the shell 3, meanwhile, the dust cover 401 drives the four groups of positioning rods 402 to be respectively aligned and inserted into the four groups of slots 405, meanwhile, the four groups of clamping blocks 403 are pressed by the extrusion compression expansion springs 404 on the outer wall of the shell 3 to enter the positioning rods 402, the positioning rods 402 can drive the clamping blocks 403 to be smoothly moved to the positions aligned with the slots in the shell 3, external force for extruding the clamping blocks 403 disappears, the four groups of expansion springs 404 rebound to respectively push the four groups of clamping blocks 403 to be inserted into the shell 3, the positioning rods 402 are fixed in the slots 405 to position the dust cover 401, the dust cover 401 is prevented from shaking and tilting of the dust cover 401, the effect of the dust cover 401 is influenced, and the effect that the heat dissipation is caused by too much dust accumulation on the surface of the iron core 10.

Example two

The embodiment comprises the following steps: mounting structure 2 includes mount pad 201, spout 202, connecting rod 203 and fixed block 204, spout 202 cover is established in base 1's the outside, the bottom mounting on spout 202 has mount pad 201, the inside on spout 202 top is all inserted and is equipped with connecting rod 203, and the bottom mounting of connecting rod 203 has fixed block 204, the internal thread has been seted up on the inner wall of spout 202, the external screw thread has been seted up on the outer wall of connecting rod 203, spout 202 constitutes revolution mechanic with the meshing of connecting rod 203 through internal and external screw thread, spout 202 constitutes sliding construction with base 1, spout 202 is symmetric distribution about the perpendicular center line of mount pad 201 in the both sides on mount pad 201 top.

In this embodiment, support two sets of spouts 202 fixedly through mount pad 201 that fixes in advance, remove the shell 3 immediately and drive two sets of bases 1 align and insert two sets of spouts 202 in, make two sets of bases 1 drive two sets of jacks of self respectively and remove to the position that aligns with fixed block 204 and stop along the inner wall of spout 202, then rotate four groups of connecting rods 203 in proper order and promote fixed block 204 downwards along the inner wall of spout 202 through threaded engagement and insert base 1 in compress tightly it fixedly, be convenient for strengthen the stability of being connected shell 3 with base 1 through four groups of fixed blocks 204.

EXAMPLE III

The embodiment comprises the following steps: the heat conducting structure 9 comprises a heat conducting plate 901, heat radiating fins 902 and supporting blocks 903, wherein the heat conducting plate 901 is fixed on one side of the iron core 10, the heat radiating fins 902 are fixed on the top ends of the heat conducting plate 901, the supporting blocks 903 are fixed on one sides of the heat radiating fins 902, the heat radiating fins 902 are provided with a plurality of groups on the top ends of the heat conducting plate 901, and the plurality of groups of heat radiating fins 902 are distributed on the top ends of the heat conducting plate 901 at equal intervals.

In this embodiment, derive the heat on iron core 10 surface through two sets of heat-conducting plates 901, the heat that the heat-conducting plate 901 of absorbing of multiunit evenly distributed's fin 902 was derived immediately and is dispersed away fast, be convenient for strengthen the radiating speed of iron core 10, guarantee the normal operation of device, prevent that the device high temperature from damaging, support two sets of adjacent fins 902 through multiunit supporting shoe 903, prevent that fin 902 atress from buckling and another adjacent set of fin 902 laminating, influence radiating effect.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims (7)

1. The utility model provides a magnetism shielding low frequency transformer, includes base (1), shell (3) and iron core (10), its characterized in that: the outer side of the base (1) is provided with a mounting structure (2), a shell (3) is fixed on one side of the base (1), and the top end of the shell (3) is provided with a dustproof structure (4);

an bakelite framework (5) is installed inside the shell (3), copper terminals (8) are installed at the top end of one side of the bakelite framework (5), and an iron core (10) is installed inside the bakelite framework (5);

the utility model discloses a motor, including iron core (10), locating lever (405), telescopic spring (404), slot (405), locating lever (402), magnetic shield cover (7), the both ends of iron core (10) one side all are provided with heat conduction structure (9), dustproof structure (4) include shield (401), locating lever (402), fixture block (403), telescopic spring (404) and slot (405), the inside at shell (3) is all seted up in slot (405), the inside of slot (405) is inserted and is equipped with locating lever (402), and the inside of locating lever (402) is provided with telescopic spring (404), one side of telescopic spring (404) is fixed with fixture block (403), the top of locating lever (402) is fixed with shield (401).

2. Magnetic shielding low-frequency transformer according to claim 1, characterized in that: mounting structure (2) include mount pad (201), spout (202), connecting rod (203) and fixed block (204), the outside at base (1) is established to spout (202) cover, the bottom mounting on spout (202) has mount pad (201), the inside on spout (202) top all is inserted and is equipped with connecting rod (203), and the bottom mounting on connecting rod (203) has fixed block (204).

3. Magnetic shielding low-frequency transformer according to claim 2, characterized in that: the inner wall of the sliding groove (202) is provided with an internal thread, the outer wall of the connecting rod (203) is provided with an external thread, and the sliding groove (202) and the connecting rod (203) form a rotating structure through the meshing of the internal thread and the external thread.

4. Magnetic shielding low-frequency transformer according to claim 2, characterized in that: the sliding chute (202) and the base (1) form a sliding structure, and the sliding chute (202) is symmetrically distributed on two sides of the top end of the mounting seat (201) relative to the vertical center line of the mounting seat (201).

5. Magnetic shielding low-frequency transformer according to claim 1, characterized in that: the fixture block (403) and the telescopic spring (404) form a telescopic structure, and the fixture block (403) and the telescopic spring (404) are welded and integrated.

6. Magnetic shielding low-frequency transformer according to claim 1, characterized in that: the heat conduction structure (9) comprises a heat conduction plate (901), cooling fins (902) and supporting blocks (903), wherein the heat conduction plate (901) is fixed on one side of the iron core (10), the cooling fins (902) are fixed on the top end of the heat conduction plate (901), and the supporting blocks (903) are fixed on one side of the cooling fins (902).

7. Magnetic shielding low-frequency transformer according to claim 6, characterized in that: the radiating fins (902) are arranged in a plurality of groups on the top end of the heat conducting plate (901), and the radiating fins (902) in the plurality of groups are distributed on the top end of the heat conducting plate (901) at equal intervals.

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