CN210038071U

CN210038071U - High power density load box

Info

Publication number: CN210038071U
Application number: CN201920334242.2U
Authority: CN
Inventors: 梁锦桥; 洪志腾; 曹勇兵; 张蒙
Original assignee: Hunan Fullde Electric Co Ltd
Current assignee: Hunan Fullde Electric Co Ltd
Priority date: 2019-03-15
Filing date: 2019-03-15
Publication date: 2020-02-07
Anticipated expiration: 2029-03-15

Abstract

The utility model discloses a high power density load box, which comprises a box body, wherein the box body is provided with a containing cavity, a resistor is fixed in the containing cavity, and the bottom of the resistor is provided with a fan blowing upwards; more than two reactors are longitudinally arranged below the fan, each reactor comprises an iron core and a hard conductive ring, and the conductive ring is bent into a spiral shape and wound outside the iron core; the conductive ring is wrapped by an insulating film, and an insulating paint layer is sprayed on the surface of the iron core, so that the conductive ring is insulated from the iron core. Compared with the prior art, because the conductive ring parcel has insulation film, the iron core surface spraying has the insulating paint layer, so the reactor can dampproofing and waterproofing, can get rid of the weather shield in the traditional load box, avoids the weather shield to occupy the space that holds the cavity, and the cavity that holds in the load box just can hold more reactors like this, satisfies high power test demand. Moreover, after the rain baffle is removed, the fan can take away heat generated by the reactor, and the heat dissipation performance is improved.

Description

High power density load box

Technical Field

The utility model relates to a load technical field, concretely relates to high power density load box.

Background

The load box is used for testing the performance of the generator, the power of the load box is mainly determined by the internal resistor and the reactor, because the resistor in the existing load box is waterproof but the reactor is not waterproof, a special chamber is required to be arranged in the load box to accommodate the reactor, a rain shield is arranged at the top of the chamber to prevent rainwater from falling onto the reactor from the top of the box body, the rain shield is positioned in the load box, the internal space of the load box is occupied, the installation of the reactor is blocked, only one reactor can be accommodated in the chamber, and the rain shield can block the internal heat dissipation of the load box. The power of the generator used in the data center, the ship and the like is large, a single load box on the market cannot meet the test requirement of a high-power generator set, more than two load boxes are often required to be connected in parallel for testing, and therefore the test cost is undoubtedly increased.

Disclosure of Invention

There is above-mentioned technical problem to prior art, the utility model provides a high power density load box can hold more reactors, satisfies the high power test demand.

In order to achieve the above object, the utility model provides a following technical scheme:

the high-power-density load box comprises a box body, wherein the box body is provided with an accommodating cavity, a resistor is fixed in the accommodating cavity, the bottom of the resistor is provided with a fan for blowing air upwards, the top of the accommodating cavity is provided with an air outlet, and the middle of the accommodating cavity is provided with an air inlet; more than two reactors are longitudinally arranged below the fan, the reactors are fixedly connected with the box body, each reactor comprises an iron core and a hard conductive ring, and the conductive rings are bent into a spiral shape and wound outside the iron core; the conductive ring is wrapped by an insulating film, and an insulating paint layer is sprayed on the surface of the iron core, so that the conductive ring is insulated from the iron core.

Wherein the top of the receiving chamber is open to enable rain water to fall to the resistor and reactor surfaces.

Wherein, the bottom of the accommodating chamber is provided with a drain hole.

The reactor further comprises a wiring terminal and a waterproof junction box, one end of the wiring terminal is connected with the conductive ring, the other end of the wiring terminal extends into the waterproof junction box, and the waterproof junction box is located at the top of the iron core.

The utility model has the advantages that:

the utility model discloses a high power density load box compares with prior art, because conductive ring parcel has insulating film, the iron core surface spraying has the insulating paint layer, therefore the reactor can dampproofing and waterproofing, can get rid of the weather shield in the traditional load box, avoids the weather shield to occupy the space that holds the cavity, and the cavity that holds in the load box just can hold more reactors like this, satisfies high power test demand. Moreover, after the rain baffle is removed, the fan can take away heat generated by the reactor, and the heat dissipation performance is improved.

Drawings

Fig. 1 is a partial view of a high power density loadbox in an embodiment.

Fig. 2 is an enlarged perspective view of the reactor in the embodiment.

Reference numerals:

the box comprises a box body 1, an accommodating chamber 11, a water discharging hole 12 and an air inlet 13;

a resistor 2;

a fan 3;

reactor 4, iron core 41, conductive coil 42, binding post 43, waterproof terminal box 44.

Detailed Description

The present invention will be described in detail with reference to the following embodiments and accompanying drawings.

The high power density load box of this embodiment, as shown in fig. 1 and fig. 2, includes box body 1, and box body 1 is equipped with and holds chamber 11, holds chamber 11 internal fixation and has resistor 2, holds the open formation air outlet in top of chamber 11, and the middle part that holds chamber 11 is equipped with air intake 13. The bottom of the resistor 2 is provided with a fan 3 blowing upwards, two reactors 4 are longitudinally arranged below the fan 3, and the reactors 4 are fixedly connected with the box body 1. When the load box works, the fan 3 can blow out heat generated by the work of the reactor 4 and the resistor 2 upwards, and the heat dissipation performance is improved. Each reactor 4 comprises an iron core 41 and a hard conductive ring 42, the conductive ring 42 is bent to be spirally wound outside the iron core 41, and an insulating paint layer is sprayed on the surface of the iron core 41, so that the conductive ring 42 is insulated from the iron core 41. Conductive ring 42 parcel has insulating film, even the rainwater drops on conductive ring 42's surface like this, can not lead to short circuit between each circle of conductive ring 42 yet, consequently reactor 4 is whole can dampproofing and waterproofing, can get rid of the weather shield of traditional load incasement, avoids the weather shield to occupy the space that holds cavity 11, avoids traditional weather shield to obstruct the installation of reactor 4, and the chamber 11 that holds in the load incasement just can hold more reactors 4 like this, satisfies the high power test demand. In rain, rainwater enters from the top of the housing chamber 11, falls to the surfaces of the resistor 2 and the reactor 4 to absorb heat, and then flows through the drain holes 12 in the bottom of the housing chamber 11 to be discharged. The reactor 4 further includes a connection terminal 43 and a waterproof terminal box 44, one end of the connection terminal 43 is connected to the conductive ring 42, the other end extends into the waterproof terminal box 44, and the waterproof terminal box 44 is located on the top of the iron core 41 to further ensure the insulation performance.

It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention, and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A high-power-density load box comprises a box body, wherein the box body is provided with an accommodating cavity, a resistor is fixed in the accommodating cavity, the bottom of the resistor is provided with a fan blowing upwards, the top of the accommodating cavity is provided with an air outlet, and the middle of the accommodating cavity is provided with an air inlet; more than two reactors are longitudinally arranged below the fan, the reactors are fixedly connected with the box body, each reactor comprises an iron core and a hard conductive ring, and the conductive rings are bent into a spiral shape and wound outside the iron core; the conductive ring is wrapped by an insulating film, and an insulating paint layer is sprayed on the surface of the iron core, so that the conductive ring is insulated from the iron core.

2. A high power density load box according to claim 1, wherein: the top of the receiving chamber is open to allow rain water to fall to the resistor and reactor surfaces.

3. A high power density load box according to claim 2, wherein: the bottom of the containing chamber is provided with a drain hole.

4. A high power density load box according to claim 1, wherein: the reactor still includes binding post and waterproof terminal box, and electrically conductive circle is connected to binding post one end, and the other end extends to in the waterproof terminal box, and waterproof terminal box is located the iron core top.