CN205231475U - Control circuit with temperature auxiliary contact - Google Patents

Abstract

The utility model discloses a control circuit with temperature auxiliary contact, including setting up inside capacitance compensation controller and the contactor at capacitor box, the output of capacitance compensation controller is connected with the input of contactor, this control circuit includes still that one is integrated at the inside temperature auxiliary contact of reactor, temperature auxiliary contact's input is connected with the output of contactor, when the temperature of reactor is less than to set the temperature, temperature auxiliary contact is in the closure state, and when the temperature of reactor is greater than to set the temperature, this control circuit of temperature auxiliary contact automatic cutout. The utility model relates to a rationally, simple structure, can be effectual reduction control circuit's construction cost, the effectual inside installation space of capacitor box that has saved has further improved the inside clean and tidy degree of capacitor box.

Description

A kind of control loop with temperature auxiliary contact

Technical field

The utility model relates to control loop technical field, is related specifically to a kind of control loop with temperature auxiliary contact.

Background technology

Capacitor box internal reactance device caloric value is very large, and cause in-cabinet temperature to raise, the equipment that affects normally runs, and must take temperature control measure, the reactance loop of ventilation and heat or cut-out long-time running, thus in-cabinet temperature is reduced, and ensures that equipment component normally runs.

In prior art, in order to ensure the normal operation of equipment component, as shown in Figure 1, capacitance compensation controller 10 is connected with contactor 11, the output of contactor 11 needs series connection thermal relay 12, and the basic functional principle of thermal relay 12 is by the current generates heat flowing into thermal element, make the bimetal leaf generation deformation of the different coefficient of expansion, when deformation reaches certain distance, just promote connecting rod action, control circuit is disconnected, thus make equipment component dead electricity, main circuit disconnects, realize the overload protection to equipment component, but because the price of thermal circuit beraker 12 is higher, thus improve the construction cost of control circuit entirety, another, thermal relay 12 overall volume is comparatively large, occupies the space that capacitor box is inner larger, has had a strong impact on the tidiness of capacitor box inside, especially more obvious for the capacitor box that some inner spaces are less.

But for the deficiencies in the prior art, developer is necessary to develop the construction cost that a kind of reasonable in design, structure is simple, can effectively reduce control circuit, effectively save the installing space of capacitor box inside, further increase the control loop with temperature auxiliary contact of the tidiness of capacitor box inside.

Utility model content

For solving prior art Problems existing, the utility model object provides the construction cost that a kind of reasonable in design, structure is simple, can effectively reduce control circuit, effectively save the installing space of capacitor box inside, further increase the control loop with temperature auxiliary contact of the tidiness of capacitor box inside.

For solving above technical problem, the utility model realizes by the following technical solutions:

With a control loop for temperature auxiliary contact, comprise the capacitance compensation controller and contactor that are arranged on capacitor box inside, the described output of capacitance compensation controller is connected with the input of contactor;

It is characterized in that, this control loop also comprises the temperature auxiliary contact that is integrated in reactor inside, the described input of temperature auxiliary contact is connected with the output of contactor, and when the temperature of reactor is less than the temperature of setting, described temperature auxiliary contact are in closure state; And when the temperature of reactor is greater than the temperature of setting, described temperature auxiliary contact cut off this control loop automatically.

Compared with prior art, the utility model is integrated with temperature auxiliary contact in reactor inside, and when the temperature of reactor is less than the temperature of setting, temperature auxiliary contact are in closure state; But when the temperature of reactor is greater than the temperature of setting, temperature auxiliary contact cut off this control loop automatically, thus by out of service for reactor higher for temperature, effectively reduce the temperature of capacitor box inside, guarantee the safe operation of other capacitor loop, the construction cost of control circuit can be effectively reduced, effectively save the installing space of capacitor box inside, further increase the tidiness of capacitor box inside.

Accompanying drawing explanation

In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.

Fig. 1 is the line map of prior art.

Fig. 2 is line map of the present utility model.

Embodiment

The technological means realized to make the utility model, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the utility model further.

With reference to shown in Fig. 2, a kind of control loop with temperature auxiliary contact provided in figure, comprises capacitance compensation controller 100 and contactor 200.

Capacitance compensation controller 100 is arranged on the inside of capacitor box, output 110 is provided with in one end of capacitance compensation controller 100, and contactor 200 is also arranged on the inside of capacitor box, input 210 is provided with in one end of contactor 200, the other end is provided with output 220, and the output 110 of capacitance compensation controller 100 is connected with the input 210 of contactor 200 by cable 400.

This control loop also comprises the temperature auxiliary contact 300 that is integrated in reactor inside, input 310 is provided with in one end of temperature auxiliary contact 300, the other end is provided with output 320, the input 310 of temperature auxiliary contact 300 is connected with the output 220 of contactor 200 by cable 500, and the output 320 of temperature auxiliary contact 300 is connected with cable 600.

But when the temperature of the reactor being arranged on capacitor box inside is less than the temperature of setting, temperature auxiliary contact 300 are in closure state, this loop is normally run; And when the temperature of reactor is greater than the temperature of setting, temperature auxiliary contact 300 cut off this control loop automatically, thus reactor higher for temperature is moved back operation, effectively reduce the temperature of capacitor box inside, guarantee the safe operation of other capacitor loop.

The utility model is integrated with temperature auxiliary contact in reactor inside in sum, and when the temperature of reactor is less than the temperature of setting, temperature auxiliary contact are in closure state; But when the temperature of reactor is greater than the temperature of setting, temperature auxiliary contact cut off this control loop automatically, thus by out of service for reactor higher for temperature, effectively reduce the temperature of capacitor box inside, guarantee the safe operation of other capacitor loop, the construction cost of control circuit can be effectively reduced, effectively save the installing space of capacitor box inside, further increase the tidiness of capacitor box inside.

More than show and describe general principle of the present utility model, principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope, the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims (1)

1., with a control loop for temperature auxiliary contact, comprise the capacitance compensation controller and contactor that are arranged on capacitor box inside, the described output of capacitance compensation controller is connected with the input of contactor;

It is characterized in that, this control loop also comprises the temperature auxiliary contact that is integrated in reactor inside, the described input of temperature auxiliary contact is connected with the output of contactor, and when the temperature of reactor is less than the temperature of setting, described temperature auxiliary contact are in closure state; And when the temperature of reactor is greater than the temperature of setting, described temperature auxiliary contact cut off this control loop automatically.