CN212304335U

CN212304335U - Overheat protection structure for distribution box

Info

Publication number: CN212304335U
Application number: CN202020991046.5U
Authority: CN
Inventors: 王伟华
Original assignee: Sigma Electric Co ltd
Current assignee: Sigma Electric Co ltd
Priority date: 2020-06-03
Filing date: 2020-06-03
Publication date: 2021-01-05
Anticipated expiration: 2030-06-03

Abstract

The utility model discloses an overheat protection structure for distribution box, which comprises a controller and a heat radiation fan, wherein, two ends of the box body are provided with a ventilation chamber, a function chamber is arranged at the middle position of the box body, the ventilation chamber is communicated with the bottom end of the function chamber, an air inlet hole is arranged on the side wall of the ventilation chamber, and the top end of the function chamber is provided with an air outlet hole; the air outlet end of the heat radiation fan is communicated with the top end of the ventilation chamber; the function room is internally provided with a temperature sensor for transmitting signals to the controller, and the controller is electrically connected with the cooling fan. This scheme is through the fresh air inlet of draft chamber, draft chamber lateral wall and the exhaust vent on function room top's setting, and when function indoor temperature was too high, the radiator fan air-out blew in by meeting function room bottom behind the draft chamber, and the top blows out, takes away the heat in the air rapidly, under overheated state, can strengthen the radiating effect through radiator fan, comes to protect power component.

Description

Overheat protection structure for distribution box

Technical Field

The utility model belongs to the technical field of the block terminal structure, especially, belong to an overheat protection structure for block terminal.

Background

The distribution box is a final-stage device of a power distribution system, is a general name of a motor control center, and is used in occasions with dispersed loads and less loops; motor control centers are used in load concentration and loop-rich applications, where they distribute the power from a circuit of a higher level of distribution equipment to nearby loads, which provide protection, monitoring and control of the loads.

Distribution box internally mounted who uses among the prior art has a large amount of power component, a plurality of power component make up and accomplish the operation of carrying out the distribution to user's family, because power component can produce the heat when carrying out work, and the inside space of distribution box is less, heat accumulation can't be rapid in the inside of distribution box gives off the distribution box outside, higher heat forms harm to the inside power component of distribution box easily, not only can lead to power component can't carry out normal distribution operation, probably still can cause power component's internal damage, cause the distribution box to break down and influence user's normal power consumption, the practicality is relatively poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: the utility model provides a block terminal is with overheat protection structure that heat dispersion is good and have overheat protection function.

The utility model adopts the technical scheme as follows:

an overheating protection structure for a distribution box comprises a controller and a heat dissipation fan, wherein ventilation chambers are arranged at two ends of a box body, a function chamber is arranged at the middle position of the box body, the ventilation chambers are communicated with the bottom end of the function chamber, an air inlet hole is formed in the side wall of each ventilation chamber, and an air outlet hole is formed in the top end of each function chamber; the air outlet end of the heat radiation fan is communicated with the top end of the ventilation chamber; the function room is internally provided with a temperature sensor for transmitting signals to the controller, and the controller is electrically connected with the cooling fan. The ventilation chambers at two ends, the air inlet holes in the side walls of the ventilation chambers and the air outlet holes in the top ends of the function chambers are arranged, when the box is actually used, outside inlet air enters the box body through the air inlet holes and then is blown out through the air outlet holes after passing through the electric power elements in the function chambers, so that heat in the electric power elements is taken away, meanwhile, when the electric power elements generate heat, hot air can be automatically discharged through the air outlet holes under the action of buoyancy, and compared with a traditional box body structure (most of the traditional structure ventilates through the air outlets at two sides, when the heat in the box body is accumulated at the top end of the box body, the air in the middle position cannot be taken away by wind force), the heat dissipation effect of; the temperature sensor and the controller are arranged, so that the switch of the cooling fan can be controlled according to the temperature signal in the functional chamber, when the temperature in the functional chamber is too high, the air of the cooling fan is blown in from the bottom end of the functional chamber after flowing out of the ventilation chamber, and is blown out from the top end of the functional chamber, so that the heat in the air is taken away rapidly, and the cooling effect is excellent.

Preferably, a placing groove is formed in the side wall, close to one end of the ventilation chamber, of the air inlet, a wind shield is hinged in the placing groove, a reset pressure spring is fixedly arranged in the placing groove, and the free end of the reset pressure spring is fixedly connected with the wind shield. The setting of standing groove, a be used for placing the deep bead, articulated deep bead that sets up and the setting of pressure spring that resets, under normal conditions, the deep bead can be opened under the effect of pressure spring that resets, be convenient for external wind-force is in the entering box by inlet opening department, open when radiator fan, when the radiator fan air-out was blown down by the top, the deep bead can close under the wind-force effect, with the inlet opening involution, avoid radiator fan's air-out to blow off by the inlet opening (guarantee that the radiator fan air-out blows in the function room), when radiator fan stops out the wind, the deep bead will open under the effect of pressure spring that resets, guarantee the radiating effect under the overheated state (radiator fan open the state) with this, therefore, the clothes.

Preferably, the top end of the box body is provided with a top column, an auxiliary plate is fixedly arranged on the top column, the top end of the auxiliary plate is provided with a water distribution plate, the auxiliary plate and the water distribution plate are enclosed to form an auxiliary cavity, the controller and the heat dissipation fan are both arranged in the auxiliary cavity, and an air inlet end of the heat dissipation fan is communicated with the outside. The arrangement of the top column, the auxiliary plate and the water distribution plate can prevent rainwater from directly falling on the distribution box, and meanwhile, the air outlet of the air outlet hole is not influenced; the heat dissipation fan of the controller arranged in the auxiliary cavity can prevent heat generated by the heat dissipation fan during working from entering the distribution box, and can also prevent the wiring of each functional element from interfering with the wiring of the electrical element, so that the functional elements are mixed, and the maintenance personnel can operate the heat dissipation fan.

Preferably, the end part of the water diversion plate extends downwards to form an outer cornice plate. When the heat dissipation fan works, the air inlet end can be in contact with the outside, and the arrangement of the outer eave plate can prevent rainwater from dripping from the side wall of the auxiliary plate and entering the heat dissipation fan, so that the air outlet effect is ensured.

Preferably, a storage battery is arranged in the auxiliary cavity, a solar charging panel is fixedly arranged at the top end of the water distribution plate, the solar charging panel is suitable for converting solar energy into electric energy and storing the electric energy in the storage battery, and the storage battery is electrically connected with the controller. The storage battery and the solar charging panel are arranged, so that solar energy can be converted into electric energy and stored in the storage battery, the heat dissipation fan and the controller are powered, and normal operation of each functional element is guaranteed.

Preferably, the bottom of box is provided with the backup pad, the tip of backup pad is provided with row dew structure, arrange dew structure including collection dew chamber and row dew pipe, arrange dew pipe and be "U" type setting, arrange the one end and the collection dew chamber intercommunication of dew pipe, arrange the other end and the outside intercommunication setting of box of dew pipe. Because there is the difference in temperature often inside and outside the block terminal, therefore the condition of condensation often can appear on the lateral wall of block terminal, the setting in collection dew chamber, then can collect the dew that the lateral wall drips, and through in the dew discharging pipe discharge box body, the dew discharging pipe of "U" type setting can guarantee to have moisture (only the liquid level height reaches the dew discharging pipe just can the flowing back when outer end level height of dew discharging pipe, with this avoid external floating dust, debris, get into in the dew discharging pipe, guarantee the dew effect.

Preferably, the bottom end of the auxiliary plate is provided with a dew-leading arc surface at a position close to the air outlet, and a dew-preventing bulge is arranged on the box body around the air outlet. When hot-air is discharged by the exhaust vent, blow when to the accessory plate bottom, if the accessory plate temperature is lower, then can form steam on the accessory plate, when steam reaches the certain degree, can be by the exhaust vent drippage to the function indoor, influence the result of use, draw the setting of dew cambered surface, then can lead steam to the cambered surface tip, it is indoor by exhaust vent entering function to avoid it, prevent the bellied setting of dew, then can avoid dripping to the water droplet on the box to flow to exhaust vent once more, play the purpose that prevents the water droplet entering function room equally.

Preferably, the air inlet and the air outlet are both provided with dust screens. Due to the arrangement of the dustproof net, external dust, sundries and the like can be prevented from entering the box body, and the influence of the dustproof net on internal functional elements is avoided.

Preferably, the controller is a KL-CLKZ02 small-sized controller, and the temperature sensor is a DS18B20 digital temperature sensor.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. the utility model discloses in, through the ventilation chamber, the fresh air inlet of ventilation chamber lateral wall and the setting of the exhaust vent on function room top, outside air inlet gets into behind the box through the fresh air inlet, can blow off by the exhaust vent behind the indoor power component of function again, thereby take away the heat in the power component, furthermore, a weighing sensor and a temperature sensor, the setting of cooling fan and controller, when function indoor temperature is too high, the cooling fan air-out is blown in by meeting function room bottom behind the ventilation chamber, the top blows off, take away the heat in the air rapidly, the radiating effect of box has not only been improved, and simultaneously, under overheated condition, can also strengthen the radiating effect through cooling fan, come to protect power component.

2. The utility model discloses in, through the setting of deep bead, can close the fresh air inlet when cooling fan opens, open the fresh air inlet when cooling fan closes, when not influencing the radiating effect under the normal condition, avoid the cooling fan air inlet to flow by the fresh air inlet, guarantee the radiating effect under the overheated state.

3. The utility model discloses in, through the setting of arranging the dew structure, can arrange the department with the condensation of box lateral wall, the inside humidity of control box.

4. The utility model discloses in, through drawing the dew cambered surface and preventing the bellied setting of dew, can avoid the condensation to drip to power element by the exhaust vent on, guarantee the result of use.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic sectional view of the present invention.

Fig. 2 is an enlarged schematic view of region a in fig. 1.

Fig. 3 is an enlarged schematic view of the region B in fig. 1.

The labels in the figure are: the solar energy heat-preservation and dew-proof device comprises a box body 1, a controller 2, a heat-dissipation fan 3, a ventilation chamber 4, a function chamber 5, an air inlet 6, an air outlet 7, a temperature sensor 8, a placement groove 9, a wind shield 10, a reset pressure spring 11, a top column 12, an auxiliary plate 13, a water diversion plate 14, an auxiliary cavity 15, an outer cornice plate 16, a storage battery 17, a solar charging plate 18, a support plate 19, a dew-collecting cavity 20, a dew-discharging pipe 21, a dew-leading cambered surface 22, a dew-preventing bulge 23 and an electric element 24.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention, i.e., the described embodiments are only some, but not all embodiments of the invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.

It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

As shown in fig. 1 and 3, an overheat protection structure for a distribution box comprises a box body 1, the overheat protection structure comprises a controller 2 and a heat dissipation fan 3, ventilation chambers 4 are arranged at two ends of the box body 1, a function chamber 5 is arranged at the middle position of the box body 1, the ventilation chambers 4 are communicated with the bottom end of the function chamber 5, air inlet holes 6 are arranged on the side walls of the ventilation chambers 4, and air outlet holes 7 are arranged at the top end of the function chamber 5; the air outlet end of the heat dissipation fan 3 is communicated with the top end of the ventilation chamber 4; and a temperature sensor 8 for transmitting signals to the controller 2 is arranged in the function chamber 5, and the controller 2 is electrically connected with the cooling fan 3.

Specifically, as shown in fig. 1 and 3, a placing groove 9 is formed in a side wall of the air inlet 6 close to one end of the ventilation chamber 4, a wind shield 10 is hinged in the placing groove 9, a reset pressure spring 11 is fixedly arranged in the placing groove 9, and a free end of the reset pressure spring 11 is fixedly connected with the wind shield 10.

Specifically, as shown in fig. 1, a top column 12 is disposed at the top end of the box body 1, an auxiliary plate 13 is fixedly disposed on the top column 12, a water diversion plate 14 is disposed at the top end of the auxiliary plate 13, the auxiliary plate 13 and the water diversion plate 14 enclose to form an auxiliary cavity 15, the controller 2 and the heat dissipation fan 3 are both disposed in the auxiliary cavity 15, and an air inlet end of the heat dissipation fan 3 is communicated with the outside.

Specifically, as shown in fig. 1, the end of the water diversion plate 14 is provided with an outer cornice plate 16 extending downwards.

Specifically, as shown in fig. 1, a storage battery 17 is disposed in the auxiliary cavity 15, a solar charging panel 18 is fixedly disposed at the top end of the water diversion plate 14, the solar charging panel 18 is adapted to convert solar energy into electric energy and store the electric energy in the storage battery 17, and the storage battery 17 is electrically connected to the controller 2.

Specifically, as shown in fig. 1, a bottom end of the box body 1 is provided with a support plate 19, and an end of the support plate 19 is provided with an exposure structure.

Specifically, as shown in fig. 1, the dew discharging structure includes a dew collecting cavity 20 and a dew discharging pipe 21, the dew discharging pipe 21 is arranged in a U shape, one end of the dew discharging pipe 21 is communicated with the dew collecting cavity 20, and the other end of the dew discharging pipe 21 is communicated with the outside of the box body 1.

Specifically, as shown in fig. 1 and 2, a dew-leading arc surface 22 is disposed at a position close to the air outlet 7 at the bottom end of the auxiliary plate 13, and a dew-preventing protrusion 23 is disposed on the box body 1 around the air outlet 7.

Specifically, as shown in fig. 2 and 3, dust screens are arranged on the air inlet 6 and the air outlet 7.

In the using process, under the normal state, the wind shield 10 is opened under the action of the reset pressure spring 11, external wind enters the box body 1 from the air inlet hole 6 and is blown out from the air outlet hole 7, and the heat generated by the power element 24 in the function chamber 5 can be taken out in the process; when the air pressure difference of the air inlet and outlet holes 7 is small and the electric element 24 heats seriously, the temperature sensor 8 can transmit the temperature value in the functional chamber 5 to the controller 2, when the temperature exceeds a preset value, the controller 2 can control the heat radiation fan 3 to be started, the air outlet of the heat radiation fan 3 enters the ventilating chamber 4 from the top end of the two ventilating chambers 4 (at the moment, the wind shield 10 can be screwed into the placing groove 9 under the action of the wind force and covers the air inlet hole 6 to prevent the wind force from blowing out from the place), then the wind force can continuously blow through the functional chamber 5, and the wind force can also blow out along the air outlet hole 7 to take out the heat of the electric element 24.

It is worth mentioning that, in the use, battery 17 can store the electric energy of solar charging panel 18 conversion all the time, and for each functional element power supply, simultaneously, because exhaust vent 7 department draws dew cambered surface 22 and prevents the setting of dew arch 23, when hot-blast blow to accessory plate 13 causes a large amount of steam, steam can gather the tip drippage that draws dew cambered surface 22, can not get into in the function room 5, in addition, the setting of collection dew chamber 20 and the escape pipe 21 of box 1 bottom, can also be with the condensation discharge in the box 1.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides an overheat protection structure for block terminal, block terminal include box (1), and overheat protection structure includes controller (2) and cooling fan (3), its characterized in that, the both ends of box (1) are provided with ventilation chamber (4), the intermediate position of box (1) is provided with function room (5), wherein:

the ventilating chamber (4) is communicated with the bottom end of the function chamber (5), an air inlet hole (6) is formed in the side wall of the ventilating chamber (4), and an air outlet hole (7) is formed in the top end of the function chamber (5);

the air outlet end of the heat radiation fan (3) is communicated with the top end of the ventilation chamber (4);

and a temperature sensor (8) for transmitting signals to the controller (2) is arranged in the function chamber (5), and the controller (2) is electrically connected with the heat radiation fan (3).

2. The overheating protection structure for the distribution box according to claim 1, wherein a placing groove (9) is formed in a side wall of one end, close to the ventilation chamber (4), of the air inlet hole (6), a wind shield (10) is hinged in the placing groove (9), a reset compression spring (11) is fixedly arranged in the placing groove (9), and a free end of the reset compression spring (11) is fixedly connected with the wind shield (10).

3. The overheating protection structure for the distribution box according to claim 1, wherein a top column (12) is arranged at the top end of the box body (1), an auxiliary plate (13) is fixedly arranged on the top column (12), a water distribution plate (14) is arranged at the top end of the auxiliary plate (13), the auxiliary plate (13) and the water distribution plate (14) are enclosed to form an auxiliary cavity (15), the controller (2) and the heat dissipation fan (3) are both arranged in the auxiliary cavity (15), and an air inlet end of the heat dissipation fan (3) is communicated with the outside.

4. The overheat protection structure for electric distribution box according to claim 3 wherein an outer cornice (16) is provided to extend downward from an end of said water diversion plate (14).

5. The overheating protection structure for distribution box according to claim 3, wherein a storage battery (17) is arranged in the auxiliary cavity (15), a solar charging panel (18) is fixedly arranged at the top end of the water diversion panel (14), the solar charging panel (18) is suitable for converting solar energy into electric energy and storing the electric energy in the storage battery (17), and the storage battery (17) is electrically connected with the controller (2).

6. The overheat protection structure for distribution box according to claim 1, wherein a bottom end of said box body (1) is provided with a support plate (19), and an end portion of said support plate (19) is provided with a dew discharging structure.

7. The overheating protection structure for the distribution box according to claim 6, wherein the dew discharging structure comprises a dew collecting cavity (20) and a dew discharging pipe (21), the dew discharging pipe (21) is arranged in a U shape, one end of the dew discharging pipe (21) is communicated with the dew collecting cavity (20), and the other end of the dew discharging pipe (21) is communicated with the outside of the box body (1).

8. The overheat protection structure for distribution box according to claim 3, wherein a dew-leading arc surface (22) is provided at a position near the air outlet (7) at the bottom end of the auxiliary plate (13), and a dew-preventing protrusion (23) is provided on the box body (1) around the air outlet (7).

9. The overheating protection structure for distribution boxes according to any one of claims 1 to 8, wherein dust screens are arranged on the air inlet holes (6) and the air outlet holes (7).