CN202975290U

CN202975290U - High-power pure-resistance load box

Info

Publication number: CN202975290U
Application number: CN 201220686543
Authority: CN
Inventors: 吴少华
Original assignee: WUJIANG CITY HUACHENG ELECTRONICS CO Ltd
Current assignee: WUJIANG CITY HUACHENG ELECTRONICS CO Ltd
Priority date: 2012-12-13
Filing date: 2012-12-13
Publication date: 2013-06-05
Anticipated expiration: 2022-12-13

Abstract

The utility model discloses a high-power pure-resistance load box which comprises a box body. A mould-case circuit breaker, a temperature controller, an alternating-current contact, a thermal relay, copper bars, a terminal, fixed mounts and thread holes are arranged in the box body. A mounting plate is arranged on the left side of the box body, a partition is arranged on the right side of the box body, and a main contact button, a fan button, an alarm reset button, an alarm button, a first temperature controller and a miniature breaker are arranged outside the box body. Loop power control is realized by the aid of the miniature breakers, thus, faults caused by burning of contacts after the long-term power-on alternating-current contact are avoided. Further, the load box has the function of automatic overheat protection, and cannot be overheated and burnt in case that fans are out of work, and even if in 24-hour load, an internal resistor cannot be red and heated. Accordingly, the load box has longer service life, and is in modularized design and convenient to maintain.

Description

A kind of high-power pure resistive load case

Technical field

The utility model relates to the proving installation field of power-supply device, particularly relate to a kind of high-power pure resistive load case.

Background technology

at present, be used for the load box of UPS performance test or burn-in test in the process of test, complicated operation usually, and the power for every group of test does not all have clear and definite sign, can not detect the voltage of every group, electric current, power, the parameters such as box house bulk temperature, and, after loading on around-the clock loading running, inner member usually the red heat phenomenon can occur, load usually can be because not having the overheated scaling loss of overheated automatic protection functions, make the safe life of whole load box very short, and a minute power loop has been selected A.C. contactor, so just can't avoid A.C. contactor to switch on the contact for a long time and cause fault.

Therefore, design for above-mentioned situation and can effectively avoid A.C. contactor to switch on the contact for a long time and cause the phenomenon of fault, and have a kind of high-power pure resistive load case of overheated automatic protection functions, inventor's problem to be solved just.

The utility model content

The technical matters that the utility model mainly solves is to provide a kind of high-power pure resistive load case, can effectively avoid A.C. contactor to switch on the contact for a long time and cause the phenomenon of fault, and having overheated automatic protection functions.

For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of high-power pure resistive load case is provided, comprise casing, described box house is provided with breaker of plastic casing, temperature controller, A.C. contactor, electrothermal relay, copper bar, terminal, fixed mount and cable-through hole, the left side of described casing is provided with installing plate, the casing right side is provided with dividing plate, and described casing outer setting has main contactor button, fan button, ann reset button, alarm button, temperature controller one and miniature circuit breaker.

In preferred embodiment of the utility model, described casing top is provided with wire hood, and the bottom is welded with angle steel, and the bottom is provided with three axial flow blowers; Described outer capping plate is screwed, and the steel plate position of described internal layer fixed resistance can be regulated front and back; Described resistance is straight type electric resistance of stainless; Described main contactor button is band lamp locking press button, and described fan button is not for being with button, and described ann reset button is the band button.

The beneficial effects of the utility model are:

1, to control what select be miniature circuit breaker to the utility model power loop, so just avoided selecting the A.C. contactor contact that switches on for a long time to burn and cause the phenomenon of fault;

2, in addition; this load box has overheated automatic protection functions; in the situation that blower fan does not turn; situation overheated, scaling loss can not occur yet, even loaded in continuous 24 hours, its internal resistance is also without the red heat phenomenon; therefore; this load box has long safe life, and complete machine employing modular design, and is easy to maintenance.

Description of drawings

Fig. 1 is the inner member structural representation of the high-power pure resistive load case of the utility model;

Fig. 2 be high-power pure resistive load case overlook arrangements of elements figure;

Fig. 3 be the front elevation of high-power pure resistive load case;

In accompanying drawing, the mark of each parts is as follows: 1, casing 2, breaker of plastic casing 3, temperature controller 4, A.C. contactor 5, electrothermal relay 6, installing plate 7, copper bar 8, terminal 9, cable-through hole 10, fixed mount 11, resistance 12, dividing plate 13, miniature circuit breaker 14, main contactor button 15, fan button 16, ann reset button 17, alarm button 18, temperature controller one.

Embodiment

Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail, thereby so that advantage of the present utility model and feature can be easier to be it will be appreciated by those skilled in the art that, protection domain of the present utility model is made more explicit defining.

See also Fig. 1 to Fig. 3, the utility model embodiment comprises: casing 1, the described casing of institute 1 inside is provided with breaker of plastic casing 2, temperature controller 3, A.C. contactor 4, electrothermal relay 5, copper bar 7, terminal 8, fixed mount 10 and cable-through hole 9, the left side of described casing 1 is provided with installing plate 6, casing 1 right side is provided with dividing plate 12, and described casing 1 outer setting has main contactor button 14, fan button 15, ann reset button 16, alarm button 17, temperature controller 1 and miniature circuit breaker 13.

In preferred embodiment of the utility model, described casing 1 top is provided with wire hood, and the bottom is welded with angle steel, and the bottom is provided with three axial flow blowers; Described outer capping plate is screwed, and the steel plate position of described internal layer fixed resistance 11 can be regulated front and back; Described resistance 11 is straight type electric resistance of stainless; Described main contactor button 14 is band lamp locking press button, and described fan button 15 is not for being with button, and described ann reset 16 buttons are the band button.

As shown in Figure 1, the N row between the ABC three-phase of described copper bar is independently, and therefore, this load box not only can be used to test three-phase UPS but also can be used to test single-phase UPS.

What the utility model divided power loop to control to select is miniature circuit breaker, has so just avoided selecting the A.C. contactor contact that switches on for a long time to burn and cause the phenomenon of fault; In addition; this load box has overheated automatic protection functions; in the situation that blower fan does not turn; situation overheated, scaling loss can not occur yet, even loaded in continuous 24 hours, its internal resistance is also without the red heat phenomenon; therefore; this load box has long safe life, and complete machine employing modular design, and is easy to maintenance.

The above is only embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or equivalent flow process conversion that utilizes the utility model instructions and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in scope of patent protection of the present utility model.

Claims

1. high-power pure resistive load case, comprise casing, it is characterized in that, described box house is provided with breaker of plastic casing, temperature controller, A.C. contactor, electrothermal relay, copper bar, terminal, fixed mount and cable-through hole, the left side of described casing is provided with installing plate, the casing right side is provided with dividing plate, and described casing outer setting has main contactor button, fan button, ann reset button, alarm button, temperature controller one and miniature circuit breaker.

2. high-power pure resistive load case according to claim 1 is characterized in that: described casing top is provided with wire hood, and the bottom is welded with angle steel, and the bottom is provided with three axial flow blowers.

3. high-power pure resistive load case according to claim 1, it is characterized in that: described outer capping plate is screwed, the steel plate position of described internal layer fixed resistance can before and after regulate.

4. high-power pure resistive load case according to claim 3, it is characterized in that: described resistance is straight type electric resistance of stainless.

5. high-power pure resistive load case according to claim 1 is characterized in that: described main contactor button is band lamp locking press button, and described fan button is not for being with button, and described ann reset button is for being with button.