CN219436716U

CN219436716U - Power isolation electricity taking device

Info

Publication number: CN219436716U
Application number: CN202320478997.6U
Authority: CN
Inventors: 孙丽敏; 戴建尧; 边文皆
Original assignee: Zhejiang Luoke Electric Power Technology Co ltd
Current assignee: Zhejiang Luoke Electric Power Technology Co ltd
Priority date: 2023-03-14
Filing date: 2023-03-14
Publication date: 2023-07-28
Anticipated expiration: 2033-03-14

Abstract

The utility model relates to a power isolation electricity taking device, which is characterized in that an inductor and an electricity taking device are arranged, a power supply coil of the inductor is connected in series to a power supply end, so that power supply access is realized, and a plurality of turns of input windings are formed; meanwhile, the electromagnetic core of the electricity taking device is detachably connected with the inductance magnetic core of the inductor and is detachably coupled with a magnetic circuit, so that induction electricity taking and output of the electricity taking coil are realized, and the problems of low efficiency and poor safety formation of the existing induction electricity taking device are solved.

Description

Power isolation electricity taking device

Technical Field

The utility model belongs to the technical field of electronic elements, and particularly relates to an electricity taking device with high safety performance and power contact isolation.

Background

The induction electricity taking device in the prior art generally comprises a first electricity taking component and a second electricity taking component, and the first electricity taking component and the second electricity taking component are fixed into an annular structure through a detachable structure. The ring structure is sleeved on the alternating current power line, so that induction power taking is realized.

However, the induced power taking device is generally only suitable for taking power from a high-current power line due to the fact that the equivalent turns of an input winding are low; meanwhile, the power taking mode needs to be in contact with a power line, and the safety performance of the power taking mode is difficult to guarantee.

Disclosure of Invention

The utility model aims to provide a power supply isolation electricity taking device which solves the problems of low efficiency and poor safety formation of the existing induction electricity taking device.

The specific scheme is as follows: a power isolation electricity taking device comprises an inductor and an electricity taking device, wherein the inductor comprises an inductance magnetic core and a power supply coil; the electricity taking device comprises an electromagnetic core and an electricity taking coil wound on the electromagnetic core; the two ends of the electromagnetic core are provided with first coupling parts protruding out of the power taking coil;

the inductor is provided with a first coupling part corresponding to the first coupling part, and the two first coupling parts are respectively arranged at two sides of the power supply coil; the electricity taking device is detachably arranged on the inductor, and the first coupling parts and the second coupling parts are coupled in a one-to-one correspondence magnetic circuit.

The utility model further adopts the technical scheme that: the electromagnetic core is a C-shaped secondary side iron core; the two end surfaces of the secondary side iron core in the length direction respectively form a first coupling part; the secondary side iron core is detachably connected with the inductance magnetic core through magnetic force.

The utility model further adopts the technical scheme that: the secondary side iron core is provided with a secondary side iron core, and the secondary side iron core is provided with a secondary side iron core.

The utility model further adopts the technical scheme that: the inductance magnetic core is an annular main iron core so as to form an inductance magnetic ring; the main iron core is provided with a first magnetic core arm and a second magnetic core arm which is parallel to the first magnetic core arm; the power supply coil is wound on the first magnetic core arm.

The utility model further adopts the technical scheme that: the upper and lower ends of the first magnetic core arm are respectively protruded in a direction away from the second magnetic core arm to form a second coupling part.

The utility model further adopts the technical scheme that: the inductor is coated with a first protective layer, the first protective layer is coated on the main iron core, and the two second coupling parts protrude out of the first protective layer.

The utility model further adopts the technical scheme that: the input end or the output end of the power supply coil is provided with a fuse.

The beneficial effects are that:

the utility model provides a power isolation power taking device, which is characterized in that an inductor and a power taking device are arranged, and a power supply coil of the inductor is connected in series to a power supply end to realize power supply access and form a plurality of turns of input windings; meanwhile, the electromagnetic core of the electricity taking device is detachably connected with the inductance magnetic core of the inductor and is detachably coupled with a magnetic circuit, so that induction electricity taking and output of the electricity taking coil are realized, and the problems of low efficiency and poor safety formation of the existing induction electricity taking device are solved.

The concrete working process is as follows: when the electricity taking device is not inserted into the inductor, the inductor realizes the voltage impedance design requirement through the inductance magnetic core, and is in an idle state, the current amount of a power supply end is small, and the safety performance is high; the electromagnetic core is inserted into the inductor, and the electromagnetic core is coupled with the magnetic circuit of the inductance magnetic core, namely, part of magnetic flux of the inductance magnetic core is distributed to the electromagnetic core, so that induced current of the electric appliance is realized, and the power supply is used for inputting current normally.

Drawings

Fig. 1 shows a schematic diagram of a power isolation power taking device according to the present utility model.

Detailed Description

For further illustration of the various embodiments, the utility model is provided with the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments and together with the description, serve to explain the principles of the embodiments. With reference to these matters, one of ordinary skill in the art will understand other possible embodiments and advantages of the present utility model. The components in the figures are not drawn to scale and like reference numerals are generally used to designate like components.

The utility model will now be further described with reference to the drawings and detailed description.

Referring to fig. 1, the power isolation power taking device of the embodiment includes an inductor and a power taking device, wherein the inductor is connected in series in a power circuit, and the power taking device is detachably connected with the inductor.

Specifically, the electricity-taking device includes an electromagnetic core 4 and an electricity-taking coil 5 wound around the middle of the electromagnetic core 4, so that two ends of the electromagnetic core 4 protrude outside the electricity-taking coil 5 to form a first coupling portion 41 for coupling with a magnetic circuit.

In this embodiment, in order to realize stable magnetic circuit connection, the electromagnetic core 4 is preferably a C-shaped secondary side iron core; the two end surfaces of the secondary side iron core in the length direction extend transversely towards one side respectively, so as to form a first coupling part 41. In order to realize the insulation protection with high safety performance, the electricity taking device is further coated with a second protective layer 6, preferably, the second protective layer 6 is an epoxy resin adhesive layer or an insulation tape wound and coated, and the two ends of the electricity taking coil 5 extend out of the second protective layer to realize the output of a circuit. Meanwhile, in order to realize efficient magnetic circuit coupling, two ends of the electromagnetic core 4 protrude out of the second protective layer 6. In this embodiment, the electromagnetic core 4 is defined as a secondary core, it should be understood that the secondary core is a term commonly used in industry, and the description does not limit that the magnetic core is made of iron, and may be made of iron, silicon steel, or permanent magnet, which all fall within the protection scope of the present utility model.

Simultaneously, in combination with fig. 1, the inductor comprises an inductance magnet, a power supply coil 2 and a power supply coil 1, wherein the power supply coil is specifically:

the inductance core 1 is an annular main iron core to form an inductance magnetic ring; the main core has a first magnetic core arm 11 and a second magnetic core arm 12 parallel to the first magnetic core arm 11, two ends of the first magnetic core arm 11 and two ends of the second magnetic core arm 12 are integrally connected respectively to form a magnetic circuit for conduction, and then the power supply coil 2 is wound on the first magnetic core arm 11 and has a plurality of turns of windings, thereby forming a high inductance inductor. The two ends of the power supply coil 2 are connected in series in the power supply circuit, and in the non-power-taking state, the power supply coil serves as an inductor element to provide high inductance for the power supply circuit, namely, the power supply coil provides main magnetic flux by the main iron core, so that the design requirement of power supply voltage impedance is met.

The inductor is provided with a second coupling portion 13 corresponding to the two first coupling portions 41, and specifically, the upper and lower ends of the first magnetic core arm 11 are respectively protruded in a direction away from the second magnetic core arm 12 to form the second coupling portions 13, so that the two second coupling portions 13 and the first magnetic core arm 11 form a power magnetic core structure mirrored with the electromagnetic core 4.

The two second coupling parts 13 are respectively arranged at two sides of the power supply coil 2, so that the power supply coil is an effective input winding; the electromagnetic core 4 is detachably connected with the inductance core 1 by magnetic force, in particular to a mode that the electricity collector is detachably arranged on the inductor, the first coupling parts 41 at the upper end and the lower end are correspondingly attached to the second coupling parts 13 one by one, and the magnetic circuits are conducted and coupled.

In order to realize efficient magnetic circuit coupling, the first coupling part and the second coupling part are vertical and horizontal extending relative to the coil winding direction, and then the magnetic cores on two sides form an efficient annular electromagnetic loop after being attached.

Meanwhile, the inductor is coated with a first protection layer for insulation protection, the first protection layer is coated on the inductor magnetic core 1, and the two second coupling parts 13 protrude out of the first protection layer, so that direct contact and lamination with the first coupling parts 41 are realized. In order to avoid power overload, the input end and the output end of the power supply coil are provided with fuses 20, so that the safety performance is further improved.

The working principle of the embodiment is as follows: when the electricity taking device is not inserted into the inductor, the inductor meets the design requirement of voltage impedance through the inductance magnetic core 1, the inductor is empty, the current quantity of a power end is small, the energy consumption is low, and the safety performance is high; on the inductor is inserted into the electricity taking device, the electromagnetic core 4 is magnetically coupled with the inductance magnetic core 1, namely, part of magnetic flux of the inductance magnetic core 1 is distributed to the electromagnetic core 4, under the condition that the structure of the electromagnetic core 4 is identical to that of the second magnetic core arm 12 and the structure of the electromagnetic core is mirror image, the magnetic fluxes of the primary iron core and the secondary iron core are respectively half, the induced current of the electricity taking device is realized, and at the moment, the power supply end normally inputs current.

Furthermore, the power take-off coil generates voltage, the number of turns of the power take-off coil is reasonably designed according to actual needs, the desired voltage can be obtained, and the power take-off coils of different windings can realize the output of different voltages. The device realizes isolation power taking, has high and adjustable output voltage, can realize high IP protection registration, can realize waterproof and explosion-proof requirements, and can even directly operate underwater.

While the utility model has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. A power isolation electricity taking device comprises an inductor and an electricity taking device, wherein the inductor comprises an inductance magnetic core and a power supply coil; the method is characterized in that:

the electricity taking device comprises an electromagnetic core and an electricity taking coil wound on the electromagnetic core; the two ends of the electromagnetic core are provided with first coupling parts protruding out of the power taking coil;

the inductor is provided with a first coupling part corresponding to the first coupling part, and the two first coupling parts are respectively arranged at two sides of the power supply coil;

the electricity taking device is detachably arranged on the inductor, and the first coupling parts and the second coupling parts are coupled in a one-to-one correspondence magnetic circuit.

2. The power isolated power take-off of claim 1, wherein: the electromagnetic core is a C-shaped secondary side iron core;

the two end surfaces of the secondary side iron core in the length direction respectively form a first coupling part; the secondary side iron core is detachably connected with the inductance magnetic core through magnetic force.

3. The power isolated power take-off of claim 2, wherein: the secondary side iron core is provided with a secondary side iron core, and the secondary side iron core is provided with a secondary side iron core.

4. The power isolated power take-off of claim 1, wherein: the inductance magnetic core is an annular main iron core so as to form an inductance magnetic ring;

the main iron core is provided with a first magnetic core arm and a second magnetic core arm which is parallel to the first magnetic core arm; the power supply coil is wound on the first magnetic core arm.

5. The power isolated power take-off of claim 4, wherein: the upper and lower ends of the first magnetic core arm are respectively protruded in a direction away from the second magnetic core arm to form a second coupling part.

6. The power isolated power take-off of claim 5, wherein: the inductor is coated with a first protective layer, the first protective layer is coated on the main iron core, and the two second coupling parts protrude out of the first protective layer.

7. The power isolated power take-off of any one of claims 1-6, wherein: the input end or the output end of the power supply coil is provided with a fuse.