CN206195213U - Outdoor terminal box - Google Patents

Abstract

The utility model relates to a terminal box. An outdoor terminal box, including a box cover, a box body and a base, the cover is provided with a reserved hole I and a ventilation port I, the lower side of the box is provided with a ventilation port II, and the base is provided with a reserved hole II and air exchange port III, the base communicates with the cable channel through the reserved hole II, the air exchange port I, air exchange port II and air exchange port III are movable with a filter mechanism, and the closed ring piece I It has a protruding part extending outwards, and the ventilation port I, the ventilation port II and the ventilation port III are respectively provided with grooves matched with the protruding parts, and the grooves are provided with fastening covers. The utility model makes full use of the surrounding environment of the terminal box, strengthens the gas convection and exchange inside and outside the terminal box, effectively solves the condensation problem of the terminal box, has strong safety, and provides guarantee for the stable operation of the terminal box.

Description

An outdoor terminal box

technical field

The utility model relates to a terminal box, in particular to an outdoor terminal box.

Background technique

The outdoor terminal box of the substation is an intermediate link between outdoor electrical equipment and indoor measurement and control, protection, communication and other equipment, and is generally installed next to the equipment. When the on-site staff regularly check the terminal boxes in cold weather, they will always find a lot of condensation and corrosion on the inner wall of individual terminal boxes. To a certain extent, it will form water droplets and drip down. If it drips on the AC and DC wires, it will cause AC short circuit, DC system grounding, cause relay protection malfunction, and switch tripping by mistake. In this regard, the current terminal box basically uses temperature and humidity probes to control the heater. When the temperature and humidity reach the starting value, the heater starts to form natural convection. When the temperature rises, the humidity drops To a certain extent, the heater returns, but the dehumidification effect is not ideal.

Patent CN201310401174.4 discloses an outdoor terminal box of a substation, including a cabinet and a door. The cabinet is equipped with a dehumidification cycle dryer, a condensation device, a heater and a temperature and humidity monitor. The condensation device It includes a condensation chamber, a condensation sensor and a condensation controller, the dehumidification circulating dryer is connected to the condensation chamber, and the heater and the condensation sensor are respectively connected to the condensation controller. The terminal box of the invention pumps the humid air in the cabinet into the condensation chamber to separate the air and water, so as to achieve the effect of drying the air inside the cabinet. Patent CN201510307916 discloses an outdoor terminal box with solar dehumidification and cooling functions, including a box body, a solar panel is installed on the top of the box, the solar panel is connected to a battery, and the battery is respectively connected to an exhaust system and a heating system. The wind system and the heating system are respectively connected with the microprocessor, and the microprocessor is respectively connected with an external temperature measurement system, an internal temperature measurement system, an internal humidity measurement system and an external humidity measurement system. The invention uses solar panels to generate electricity and supply power, which is green, energy-saving and environmentally friendly; it has the functions of on-site alarm and dispatch real-time monitoring; it completely solves the problem of visualizing and controlling the temperature and humidity in the outdoor terminal box, and reduces the insulation drop caused by humidity and high temperature. And short-circuit faults are of great significance to prevent electrical accidents. The above technical solutions solve the problem of moisture inside the terminal box and/or the circulation of air inside and outside the terminal box from different angles, and provide a useful reference for maintaining the safe operation of the terminal box. However, the limitations of the above methods are relatively strong, and the applicable objects or The conditions are greatly affected by the type of terminal box and the external environment.

Utility model content

The technical problem to be solved by the utility model is to provide a moisture-proof outdoor terminal box for the deficiencies of the prior art.

In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is:

An outdoor terminal box, comprising a box cover, a box body and a base, the top of the box body is provided with a cover plate, the box cover is set on the upper part of the cover plate, and the cover plate is provided with a reserved hole I and a replacement Air port I, the lower side of the box is provided with air exchange port II, the base is provided with reserved hole II and air exchange port III, the base communicates with the cable channel through the reserved hole II, and the reserved hole I Ventilation fans are respectively set in the reserved holes II, heating elements, temperature probes, humidity probes and controllers are set in the box, the temperature probes and humidity probes are connected in parallel to the controller, and the controller is connected to the heating element and the ventilation fan , the air exchange port I, air exchange port II and air exchange port III are movably provided with a filter mechanism, the filter mechanism includes an upper filter mechanism and a lower filter mechanism connected by threads, and the upper filter mechanism includes an outer The threaded wall, the closed ring piece I and the filter screen I arranged inside the closed ring piece I, the lower filter mechanism includes the internal thread wall, the closed ring piece II, the filter screen set inside the closed ring piece II The inner filter screen II and the acupuncture provided on the filter screen II, the closed annular sheet I has a protrusion extending outward, and the ventilation port I, ventilation port II and ventilation port III are respectively A groove cooperating with the protrusion is provided, and the groove is provided with a fastening cover.

Preferably, the pore size of the filter screen I is smaller than the pore size of the filter screen II.

Preferably, the needles are vertically arranged on the filter screen II, and the heights of the needles are respectively greater than the heights of the external thread wall and the internal thread wall.

Preferably, the internal thread wall and the external thread wall are transparent products.

Preferably, protective eaves are provided around the box cover.

Preferably, the box is provided with a movable door, and the movable door is provided with a transparent window.

Preferably, the filter mechanism is made of stainless steel.

Preferably, the controller is connected with UPS power supply.

Compared with the prior art, the utility model has the beneficial effects as follows:

The outdoor terminal box of the utility model has a ventilation fan and a ventilation port I on the top, and a ventilation port II on the side, and is arranged on the cable trench at the same time. Under the action of the ventilation fan, the gas can be fully circulated, and it can provide auxiliary functions for the cooling and dehumidification of the terminal box. The terminal box is also equipped with a temperature probe, a humidity probe, a temperature and humidity controller and a heating element. By monitoring the temperature and humidity in the box, the operation of the heating element and/or the ventilation fan is controlled, and the cooperation of multiple ventilation ports , Strengthen the gas convection and exchange inside and outside the box, so as to solve the problem of condensation inside the terminal box. At the same time, for the safety of the terminal box, the utility model is equipped with a filter mechanism at the ventilation port, on the one hand, it can prevent small animals from entering it, and on the other hand, it can also filter out large particles, so as to realize the safety of the terminal box. operation is guaranteed.

The utility model has a reasonable structural design, makes full use of the surrounding environment of the terminal box, strengthens gas convection and exchange inside and outside the terminal box, effectively solves the condensation problem of the terminal box, and at the same time has strong safety, providing guarantee for the stable operation of the terminal box.

Description of drawings

Figure 1: Schematic diagram of the structure of the outdoor terminal box of the utility model;

Figure 2: Schematic diagram of the structure of the filter mechanism of the utility model;

Figure 3: Schematic diagram of the structure of the ventilation port I of the utility model.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Example 1

Referring to Figures 1 to 3, an outdoor terminal box of the present utility model includes a box cover 1, a box body 2 and a base 3, a cover plate 4 is arranged on the top of the box body, and the box cover is arranged on the upper part of the cover plate , the cover plate is provided with a reserved hole I5 and a ventilation port I6, the lower side of the box is provided with a ventilation port II7, the base is provided with a reserved hole II8 and a ventilation port III9, and the base and the cable trench 10 communicates through the reserved hole II, and the reserved hole I and the reserved hole II are respectively provided with a ventilation fan, and the heating element 11, the temperature probe 12, the humidity probe 13 and the controller 14 are arranged in the said box, and the temperature probe and the The humidity probe is connected in parallel with the controller, the controller is connected with the heating element and the ventilation fan, the ventilation port I, the ventilation port II and the ventilation port III are movably provided with a filter mechanism, and the filter mechanism includes a screw-connected An upper filter mechanism 15 and a lower filter mechanism 16, the upper filter mechanism includes an external thread wall 15-1, a closed annular piece I15-2 and a filter screen I15-3 arranged inside the closed annular piece I , the lower filter mechanism includes an internal thread wall 16-1, a closed ring piece II 16-2, a filter screen II 16-3 inside the closed ring piece II, and a needle set on the filter screen II Thorn 16-4, the closed annular piece I has a protrusion 18 extending outward, and the ventilation port I, ventilation port II and ventilation port III are respectively provided with grooves 19 that match the protrusions , the groove is provided to fasten the cover 20 .

In the utility model, the setting purpose of the filter mechanism is mainly to prevent small animals from approaching and crawling in. At the same time, filter mechanisms with different aperture sizes can be set according to the use environment, so as to filter out large particles and ensure the safe operation of the terminal box. provide assurance. Figure 3 only exemplarily illustrates the structure of the ventilation port I, the structure of the ventilation port II and the ventilation port III is the same, the fastening cover 20 is hingedly connected with the cover plate, the box body or the base, and the protrusion of the filter mechanism The portion 18 is fastened in the groove 19 to fix the screen mechanism.

In addition, in order to prevent rainwater from entering the terminal box through the ventilation opening I of the cover plate when it rains, protective eaves are provided around the box cover 1 . The covering area of the protective eaves is greater than the area of the cover plate.

The box body is provided with a dodge door 21, and the dodge door is provided with a transparent window. The setting of the movable door and the transparent window facilitates the observation and maintenance of the internal conditions of the terminal box during maintenance.

The filter mechanism will inevitably age faster when it is exposed to wind and sun for a long time. The use of stainless steel parts can increase the service life and reduce the number of maintenance.

The controller is connected with UPS power supply. In this way, the terminal box can maintain the power supply state and maintain the normal operation of the moisture-proof device.

In the filter mechanism, the aperture of the filter I can be equal to that of the filter II; the acupuncture can be set at a certain angle, but the vertical height from the end of the filter II to the filter II should be greater than the height of the external thread wall and the internal thread wall respectively, so as to Expose the plane of filter Ⅰ.

The internal thread wall and the external thread wall are transparent parts. In this way, you can see through the side whether there are sundries inside and remove them in time.

Example 2

Referring to Figures 1 to 3, the difference between the outdoor terminal box described in this embodiment and Embodiment 1 is:

The pore size of the filter screen I is smaller than the pore size of the filter screen II. In this way, it is convenient for ventilation inside and outside, so as not to block the rapid exchange of air.

The needles are vertically arranged on the filter screen II, and the heights of the needles are respectively greater than the heights of the external thread wall and the internal thread wall, and less than the sum of the heights of the external thread wall and the internal thread wall. In this way, acupuncture is easy to fix, the process is simpler, and the defense effect is better.

The filter screen mechanism of the utility model adopts the upper and lower filter screen mechanisms connected by threads to cooperate, so that in the process of installation and disassembly, the injury to the operator can be reduced or avoided. Until it is completely inside the upper and lower filter mesh mechanisms, and does not protrude from the surface, it will not be touched by the operator.

The specific embodiments described herein are only examples to illustrate the concept of the present utility model. Those skilled in the technical field to which the utility model belongs can make various modifications or supplements to the described specific embodiments or adopt similar methods to replace them, but they will not deviate from the spirit of the utility model or go beyond the appended claims defined range.

Claims (8)

1. a kind of Outdoor Terminal Case, including case lid, casing and base, the top of the casing set cover plate, and the case lid is set Preformed hole I and ventilation mouth I are set on the top of the cover plate, the cover plate, and the lower side of the casing sets ventilation mouth II, it is characterised in that：The base sets preformed hole II and ventilation mouth III, and the base passes through the phase of preformed hole II with cable duct It is logical, it is respectively provided with the preformed hole I and preformed hole II and heating element heater, temp probe, humidity is set in ventilation fan, the casing Probe and controller, the temp probe and moisture probe parallel connection be connecteds with controller, the controller and heating element heater, take a breath Fan connection, the ventilation mouth I, ventilation mouth II and the activity of ventilation mouth III set filter screen mechanism, and the filter screen mechanism connects including screw thread The upper filter screen mechanism and lower filter screen mechanism for connecing, the upper filter screen mechanism include external screw thread wall, closed circular piece I and are arranged on institute The filter screen I inside closed circular piece I is stated, the lower filter screen mechanism includes internal thread wall, closed circular piece II, is arranged on the envelope Filter screen II inside loop-like II and the acupuncture being arranged on the filter screen II, the closed circular piece I have to extension The protuberance stretched, the ventilation mouthful I, ventilation mouth II and ventilation mouth III are respectively provided with the groove being engaged with the protuberance, institute State groove and fastening lid is set.

2. Outdoor Terminal Case as claimed in claim 1, it is characterised in that：The aperture of the filter screen I is less than the filter screen II Aperture.

3. Outdoor Terminal Case as claimed in claim 1, it is characterised in that：The acupuncture is vertically set on the filter screen II, The height of the acupuncture is respectively greater than the height of the external screw thread wall and internal thread wall.

4. Outdoor Terminal Case as claimed in claim 3, it is characterised in that：The internal thread wall and external screw thread wall are transparent system Part.

5. Outdoor Terminal Case as claimed in claim 1, it is characterised in that：The case lid surrounding sets protection eaves.

6. Outdoor Terminal Case as claimed in claim 1, it is characterised in that：The casing sets dodge gate, and the dodge gate sets Put transparency window.

7. Outdoor Terminal Case as claimed in claim 1, it is characterised in that：The filter screen mechanism is stainless steelwork.

8. Outdoor Terminal Case as claimed in claim 1, it is characterised in that：The controller is connected with ups power.