Internal temperature regulation and control device of distribution box

Abstract

The utility model relates to the technical field of distribution boxes, in particular to a distribution box internal temperature regulation and control device which comprises a distribution box body, three semiconductor chilling plates are arranged on the rear side of the inner wall of the distribution box body in a penetrating mode, a heat conduction plate is arranged on the rear side of the distribution box body, and a dehumidification piece is arranged on the right side of the inner wall of the distribution box body. An electric heating plate is arranged on the left side of the inner wall of the distribution box body and close to the bottom, a box door is hinged to the front side of the distribution box body, and a temperature controller is arranged on the rear side of the box door. According to the distribution box internal temperature regulation and control device, when the temperature controller detects that the temperature in the distribution box body is higher than a set first threshold value, the temperature controller controls the fan and the semiconductor chilling plate to work, so that the effect of rapid cooling is achieved, and when the temperature controller detects that the temperature in the distribution box body is lower than a set second threshold value, the temperature controller controls the fan and the semiconductor chilling plate to work. The temperature controller controls the fan and the electric heating plate to work, the effect of rapid temperature rising is achieved, the dehumidification part is located in the sealed distribution box body, the bagged drying agent can play the role of effective dehumidification, and the device can be used for a long time.

Description

Technical Field

[0001] The utility model relates to the technical field of distribution boxes, in particular to a temperature control device inside a distribution box. Background Art

[0002] Since the distribution cabinet is equipped with a large number of power and communication equipment such as fuses, contactors, residual current protective devices, capacitor meters, circuit breakers, electricity meters, inverters and other components, these components will generate a lot of heat when the outdoor temperature is too high, and they will also generate a lot of heat during long-term operation. Especially for products with inverters, the heat generated is even greater. Excessive temperature will seriously affect the operating stability and service life of our distribution equipment.

[0003] The patent with publication number CN212875170U discloses a temperature-adjustable distribution box, including a box body, a first heat dissipation device for preliminary heat dissipation of the box body is provided on the outside of the box body, the first heat dissipation device includes a heat dissipation tooth groove arranged on the top of the box body and a plurality of heat dissipation holes arranged on the bottom of both sides of the box body, a second heat dissipation device for further heat dissipation of the box body is provided in the box body, the second heat dissipation device includes a heat dissipation fan arranged at the bottom of the box body, a drying device for drying and dehumidifying the box body is provided inside the box body, and the drying device and the second heat dissipation device are electrically connected to a temperature and humidity controller provided on an inner wall on one side of the box body. The utility model comprehensively regulates the temperature and humidity in the box body by providing a first heat dissipation device, a second heat dissipation device and a drying device, thereby ensuring that the electronic components operate in a suitable temperature and humidity environment.

[0004] The above-mentioned prior art dissipates heat from the box body through a cooling fan, and outside air enters into the box body through the cooling holes, and moisture in the air will be absorbed by the drying box. However, due to the opening of the cooling holes, the box body is in an open state, and the desiccant in the drying box will quickly absorb moisture and become saturated, thereby causing the drying box to fail. The staff is required to frequently replace the desiccant, which will increase the investment in manpower and material resources and is not conducive to long-term use. In addition, in winter, moisture entering into the box body through the cooling holes is prone to freezing, which will have an adverse effect on the equipment in the distribution box. In view of this, we propose an internal temperature control device for the distribution box. Utility Model Content

[0005] The purpose of the utility model is to provide a temperature control device inside a distribution box to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] The internal temperature control device of the distribution box comprises a distribution box body, wherein three semiconductor cooling sheets arranged equidistantly in the upper and lower sides are provided through the rear side of the inner wall of the distribution box body, and a heat conducting plate is provided on the rear side of the distribution box body, and silicone grease is filled between the heating surface of the semiconductor cooling sheet and the heat conducting plate. The cooling surface of the semiconductor cooling sheet is located in the distribution box body, and the interior of the distribution box body can be cooled, thereby achieving the effect of cooling. The heat conducting plate can quickly dissipate the heat generated by the heating surface of the semiconductor cooling sheet;

[0008] A dehumidifying component is provided on the right side of the inner wall of the distribution box and near the middle of the front edge. The dehumidifying component includes a rectangular fixing seat fixedly connected to the right side of the inner wall of the distribution box. A detachable rectangular box is provided on the left side of the rectangular fixing seat. A bagged desiccant is placed in the rectangular box. The dehumidifying component is located in the sealed distribution box. The wire hole of the distribution box can be opened at the bottom, and the wire hole is sealed after the wire passes through the wire hole, so that the bagged desiccant in the rectangular box can play an effective dehumidifying role and can be used for a long time.

[0009] An electric heating plate is provided on the left side of the inner wall of the distribution box and near the bottom. The electric heating plate can heat the inside of the distribution box in winter to prevent the internal temperature of the distribution box from being too low and affecting the operation of the distribution box. A box door is hinged on the front side of the distribution box, and a temperature controller is provided on the rear side of the box door.

[0010] Preferably, a protective top plate is provided on the top of the distribution box body, the length of the protective top plate is greater than the length of the distribution box body, and the width of the protective top plate is greater than the width of the distribution box body, so as to prevent falling objects and rain.

[0011] Preferably, a heat-insulating layer is provided between the outer wall and the inner wall of the distribution box, and a heat-insulating interlayer is provided inside the box door to reduce the influence of the external temperature on the internal temperature of the distribution box.

[0012] Preferably, the rear side of the heat conducting plate is provided with a plurality of heat conducting sheets arranged equidistantly left and right, so as to increase the contact surface between the heat conducting plate and the outside air and improve the heat dissipation effect. The rear side of the heat conducting sheet is provided with a plurality of U-shaped openings arranged equidistantly up and down, so that the airflow can move in the horizontal direction, thereby improving the heat dissipation effect of the plurality of heat conducting sheets.

[0013] Preferably, a T-shaped groove is provided on the top of the left side of the rectangular fixing seat, and a T-shaped connecting block is provided on the right side of the rectangular box. The T-shaped connecting block is inserted into the T-shaped groove, which is convenient for staff to disassemble and assemble the rectangular box, so as to facilitate staff to replace the bagged desiccant in the rectangular box.

[0014] Preferably, a plurality of circular holes are opened on the left side of the rectangular box so that air can pass through the rectangular box to ensure the dehumidification effect.

[0015] Preferably, a U-shaped fixing plate is provided on the left side of the bottom of the inner wall of the distribution box, an air vent is opened in the middle of the top of the U-shaped fixing plate, and a fan is installed on the top of the U-shaped fixing plate by bolts. The fan is located directly below the electric heating plate. The fan generates airflow in the distribution box, so that cold air or hot air can circulate quickly in the distribution box, thereby quickly achieving cooling or heating of the inside of the distribution box.

[0016] Preferably, a mounting plate is provided on the left side of the top of the electric heating plate, and the mounting plate is mounted on the left side of the inner wall of the distribution box by bolts, so as to facilitate the disassembly and assembly of the electric heating plate. When the electric heating plate fails, it can be disassembled for maintenance or replacement.

[0017] Preferably, the temperature probe of the thermostat is installed on the rear side of the box door, the semiconductor refrigeration sheet, the electric heating plate and the fan are electrically connected to the thermostat through wires, respectively, the semiconductor refrigeration sheet, the electric heating plate and the fan all work with an external power supply, the thermostat sets a first threshold value and a second threshold value, the first threshold value is greater than the second threshold value, when the temperature is between the first threshold value and the second threshold value, the semiconductor refrigeration sheet, the electric heating plate and the fan all do not work, when the thermostat detects that the temperature inside the distribution box is higher than the set first threshold value, the thermostat controls the fan and the semiconductor refrigeration sheet to work, the semiconductor refrigeration sheet cools the inside of the distribution box, and the fan generates circulating airflow inside the distribution box, thereby achieving the effect of rapid cooling, when the thermostat detects that the temperature inside the distribution box is lower than the set second threshold value, the thermostat controls the fan and the electric heating plate to work, the electric heating plate heats the inside of the distribution box, and the fan generates circulating airflow inside the distribution box, thereby achieving the effect of rapid heating.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] 1. The temperature control device inside the distribution box has a first threshold value and a second threshold value set on the thermostat, the first threshold value is greater than the second threshold value, when the temperature is between the first threshold value and the second threshold value, the semiconductor refrigeration plate, the electric heating plate and the fan do not work, when the thermostat detects that the temperature inside the distribution box is higher than the set first threshold value, the thermostat controls the fan and the semiconductor refrigeration plate to work, the semiconductor refrigeration plate cools the inside of the distribution box, and the fan generates circulating airflow inside the distribution box, thereby achieving the effect of rapid cooling, when the thermostat detects that the temperature inside the distribution box is lower than the set second threshold value, the thermostat controls the fan and the electric heating plate to work, the electric heating plate heats the inside of the distribution box, and the fan generates circulating airflow inside the distribution box, thereby achieving the effect of rapid heating.

[0020] 2. The distribution box has an internal temperature control device. A bagged desiccant is placed in the rectangular box. The dehumidification component is located in the sealed distribution box. The wire hole of the distribution box can be opened at the bottom, and the wire hole is sealed after the wire passes through the wire hole. In this way, the bagged desiccant in the rectangular box can play an effective dehumidification role and can be used for a long time.

[0021] 3. The internal temperature control device of the distribution box has a T-shaped groove on the top of the left side of the rectangular fixing seat, and a T-shaped connecting block is provided on the right side of the rectangular box. The T-shaped connecting block is inserted into the T-shaped groove, which is convenient for the staff to disassemble and assemble the rectangular box, so as to facilitate the staff to replace the bagged desiccant in the rectangular box. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall first state structure of the utility model;

[0023] Figure 2 It is a schematic diagram of the overall second state structure of the utility model;

[0024] Figure 3 It is one of the partial structural schematic diagrams of the utility model;

[0025] Figure 4 This is the second schematic diagram of the partial structure of the utility model;

[0026] Figure 5 This is the third schematic diagram of the partial structure of the utility model;

[0027] Figure 6 It is a schematic diagram of the assembly structure of the U-shaped fixing plate and the fan in the utility model;

[0028] Figure 7 It is a schematic diagram of the structure of the dehumidification component in the utility model.

[0029] In the figure: 1. power distribution box; 2. box door; 3. protective top plate; 4. semiconductor cooling plate; 5. heat conducting plate; 50. heat conducting plate; 500. U-shaped opening; 6. U-shaped fixing plate; 60. air vent; 7. fan; 8. electric heating plate; 80. mounting plate; 9. dehumidification component; 90. rectangular fixing seat; 900. T-shaped groove; 91. rectangular box; 910. circular hole; 92. T-shaped connecting block; 10. thermostat. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0032] See also Figure 1-Figure 7 , the utility model provides a technical solution:

[0033] The internal temperature control device of the distribution box comprises a distribution box body 1, three semiconductor cooling sheets 4 arranged equidistantly in the upper and lower sides are penetrated through the rear side of the inner wall of the distribution box body 1, a heat conducting plate 5 is provided on the rear side of the distribution box body 1, silicone grease is filled between the heating surface of the semiconductor cooling sheet 4 and the heat conducting plate 5, the cooling surface of the semiconductor cooling sheet 4 is located in the distribution box body 1, and the interior of the distribution box body 1 can be cooled, thereby achieving the effect of cooling, and the heat conducting plate 5 can quickly dissipate the heat generated by the heating surface of the semiconductor cooling sheet 4;

[0034] A dehumidifying component 9 is provided on the right side of the inner wall of the distribution box 1 and near the middle of the front edge. The dehumidifying component 9 includes a rectangular fixing seat 90 fixedly connected to the right side of the inner wall of the distribution box 1. A detachable rectangular box 91 is provided on the left side of the rectangular fixing seat 90. A bagged desiccant is placed in the rectangular box 91. The dehumidifying component 9 is located in the sealed distribution box 1. The wire hole of the distribution box 1 can be opened at the bottom, and the wire hole is sealed after the wire passes through the wire hole, so that the bagged desiccant in the rectangular box 91 can play an effective dehumidifying role and can be used for a long time.

[0035] An electric heating plate 8 is provided on the left side of the inner wall of the distribution box 1 and near the bottom. The electric heating plate 8 can heat the inside of the distribution box 1 in winter to prevent the internal temperature of the distribution box 1 from being too low and affecting the operation of the distribution box. A box door 2 is hinged on the front side of the distribution box 1, and a thermostat 10 is provided on the rear side of the box door 2.

[0036] In this embodiment, a protective top plate 3 is provided on the top of the distribution box 1. The length of the protective top plate 3 is greater than the length of the distribution box 1, and the width of the protective top plate 3 is greater than the width of the distribution box 1, which plays a role in preventing falling objects and rain.

[0037] Specifically, a heat-insulating layer is provided between the outer wall and the inner wall of the distribution box 1 , and a heat-insulating interlayer is provided inside the box door 2 , so as to reduce the influence of the external temperature on the internal temperature of the distribution box 1 .

[0038] Furthermore, a plurality of heat conducting sheets 50 equidistantly arranged left and right are provided on the rear side of the heat conducting plate 5 to increase the contact surface between the heat conducting plate 5 and the outside air and improve the heat dissipation effect. A plurality of U-shaped openings 500 equidistantly arranged up and down are provided on the rear side of the heat conducting sheet 50 to allow the airflow to move in the horizontal direction and improve the heat dissipation effect of the plurality of heat conducting sheets 50.

[0039] Furthermore, a T-shaped groove 900 is provided at the top of the left side of the rectangular fixing seat 90, and a T-shaped connecting block 92 is provided on the right side of the rectangular box 91. The T-shaped connecting block 92 is inserted into the T-shaped groove 900, so that the staff can disassemble and assemble the rectangular box 91 and replace the bagged desiccant in the rectangular box 91.

[0040] Furthermore, a plurality of circular holes 910 are provided on the left side of the rectangular box 91 so that air can pass through the rectangular box 91 to ensure a dehumidification effect.

[0041] Furthermore, a U-shaped fixing plate 6 is provided on the left side of the bottom of the inner wall of the distribution box 1, and an air vent 60 is opened in the middle of the top of the U-shaped fixing plate 6. A fan 7 is installed on the top of the U-shaped fixing plate 6 by bolts. The fan 7 is located directly below the electric heating plate 8. The fan 7 is used to generate airflow in the distribution box 1, so that cold air or hot air can circulate quickly in the distribution box 1, thereby quickly achieving cooling or heating of the inside of the distribution box 1.

[0042] Furthermore, a mounting plate 80 is provided on the left side of the top of the electric heating plate 8, and the mounting plate 80 is installed on the left side of the inner wall of the distribution box 1 by bolts, so as to facilitate the disassembly and assembly of the electric heating plate 8. When the electric heating plate 8 fails, it can be disassembled for maintenance or replacement.

[0043] Furthermore, the temperature probe of the thermostat 10 is installed on the rear side of the box door 2, and the semiconductor refrigeration sheet 4, the electric heating plate 8 and the fan 7 are electrically connected to the thermostat 10 through wires respectively. The semiconductor refrigeration sheet 4, the electric heating plate 8 and the fan 7 all work with an external power supply. The thermostat 10 sets a first threshold value and a second threshold value, and the first threshold value is greater than the second threshold value. When the temperature is between the first threshold value and the second threshold value, the semiconductor refrigeration sheet 4, the electric heating plate 8 and the fan 7 do not work. When the thermostat 10 detects that the temperature in the distribution box 1 is higher than the set first threshold value, the thermostat 10 controls the fan 7 and the semiconductor refrigeration sheet 4 to work, the semiconductor refrigeration sheet 4 cools the interior of the distribution box 1, and the fan 7 generates a circulating airflow in the distribution box 1, thereby achieving a rapid cooling effect. When the thermostat 10 detects that the temperature in the distribution box 1 is lower than the set second threshold value, the thermostat 10 controls the fan 7 and the electric heating plate 8 to work, the electric heating plate 8 heats the interior of the distribution box 1, and the fan 7 generates a circulating airflow in the distribution box 1, thereby achieving a rapid heating effect.

[0044] When the internal temperature control device of the distribution box of this embodiment is in use, the thermostat 10 sets a first threshold and a second threshold, the first threshold is greater than the second threshold, when the temperature is between the first threshold and the second threshold, the semiconductor refrigeration sheet 4, the electric heating plate 8 and the fan 7 do not work, when the thermostat 10 detects that the temperature inside the distribution box 1 is higher than the set first threshold, the thermostat 10 controls the fan 7 and the semiconductor refrigeration sheet 4 to work, the semiconductor refrigeration sheet 4 cools the inside of the distribution box 1, the heat conducting plate 5 can quickly dissipate the heat generated by the heating surface of the semiconductor refrigeration sheet 4, and the plurality of heat conducting sheets 50 increase the distance between the heat conducting plate 5 and the outside The contact surface with the boundary air improves the heat dissipation effect to ensure the cooling efficiency of the semiconductor refrigeration sheet 4. The fan 7 generates a circulating airflow in the distribution box 1, thereby achieving a rapid cooling effect and preventing the internal temperature of the distribution box 1 from being too high and affecting the operation of the distribution box; when the thermostat 10 detects that the temperature in the distribution box 1 is lower than the set second threshold value, the thermostat 10 controls the fan 7 and the electric heating plate 8 to work, and the electric heating plate 8 heats the inside of the distribution box 1. The fan 7 generates a circulating airflow in the distribution box 1, thereby achieving a rapid heating effect and preventing the internal temperature of the distribution box 1 from being too low and affecting the operation of the distribution box.

[0045] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A temperature control device for an internal distribution box, comprising a distribution box body (1), characterized in that: The rear side of the inner wall of the distribution box (1) is provided with three semiconductor cooling plates (4) arranged equidistantly in the upper and lower directions. The rear side of the distribution box (1) is provided with a heat conducting plate (5). Silicone grease is filled between the heating surface of the semiconductor cooling plate (4) and the heat conducting plate (5). A dehumidifying component (9) is provided on the right side of the inner wall of the distribution box (1) and near the middle of the front edge. The dehumidifying component (9) includes a rectangular fixing seat (90) fixedly connected to the right side of the inner wall of the distribution box (1). A detachable rectangular box (91) is provided on the left side of the rectangular fixing seat (90). A bagged desiccant is placed in the rectangular box (91). An electric heating plate (8) is provided on the left side of the inner wall of the distribution box (1) and near the bottom. A box door (2) is hinged on the front side of the distribution box (1). A thermostat (10) is provided on the rear side of the box door (2).

2. The internal temperature control device of the distribution box according to claim 1, characterized in that: A protective top plate (3) is provided on the top of the distribution box (1); the length of the protective top plate (3) is greater than the length of the distribution box (1); and the width of the protective top plate (3) is greater than the width of the distribution box (1).

3. The internal temperature control device of the distribution box according to claim 1, characterized in that: A heat-insulating layer is provided between the outer wall and the inner wall of the distribution box body (1), and a heat-insulating interlayer is provided inside the box door (2).

4. The internal temperature control device of the distribution box according to claim 1, characterized in that: The rear side of the heat conducting plate (5) is provided with a plurality of heat conducting sheets (50) arranged at equal distances from left to right, and the rear side of the heat conducting sheet (50) is provided with a plurality of U-shaped openings (500) arranged at equal distances from top to bottom.

5. The internal temperature control device of the distribution box according to claim 1, characterized in that: A T-shaped groove (900) is provided on the top of the left side of the rectangular fixing seat (90), and a T-shaped connecting block (92) is provided on the right side of the rectangular box (91), and the T-shaped connecting block (92) is inserted into the T-shaped groove (900).

6. The internal temperature control device of the distribution box according to claim 1, characterized in that: A plurality of circular holes (910) are provided on the left side of the rectangular box (91).

7. The internal temperature control device of the distribution box according to claim 1, characterized in that: A U-shaped fixing plate (6) is provided on the left side of the bottom of the inner wall of the distribution box (1), a ventilation hole (60) is provided in the middle of the top of the U-shaped fixing plate (6), and a fan (7) is installed on the top of the U-shaped fixing plate (6) by means of bolts, and the fan (7) is located directly below the electric heating plate (8).

8. The internal temperature control device of the distribution box according to claim 1, characterized in that: A mounting plate (80) is provided on the left side of the top of the electric heating plate (8), and the mounting plate (80) is mounted on the left side of the inner wall of the distribution box (1) by means of bolts.

9. The internal temperature control device of the distribution box according to claim 7, characterized in that: The temperature probe of the thermostat (10) is installed on the rear side of the box door (2), and the semiconductor refrigeration plate (4), the electric heating plate (8) and the fan (7) are electrically connected to the thermostat (10) through wires.

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