CN216750923U - Low-voltage power distribution cabinet with current transformer - Google Patents
Low-voltage power distribution cabinet with current transformer Download PDFInfo
- Publication number
- CN216750923U CN216750923U CN202220107746.2U CN202220107746U CN216750923U CN 216750923 U CN216750923 U CN 216750923U CN 202220107746 U CN202220107746 U CN 202220107746U CN 216750923 U CN216750923 U CN 216750923U
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- cabinet
- heat dissipation
- cabinet body
- current transformer
- power distribution
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Abstract
本实用新型公开一种带有电流互感器的低压电力配电柜，包括柜体、断路器、PLC控制器、电流互感器、散热底座、温度传感器、风机和防护网罩；所述散热底座的顶壁设置有与所述柜体内部连通的第一散热孔，所述散热底座的侧壁设置有第二散热孔；通过散热底座、第一散热孔和第二散热孔保证了柜体内的通风，使得柜体内自然散热，当散热底座无法满足柜体的散热需求，温度传感器检测到柜体内的温度超过上限时，PLC控制器能自动打开风机，对柜体内进行强制散热，提高柜体内的散热效率，散热效果好，且还能通过断路器、PLC控制器和电流互感器组成短路保护机构，在在柜体的供电回路发生短路事故时，及时自动断开电源，安全性高。
The utility model discloses a low-voltage power distribution cabinet with a current transformer, comprising a cabinet body, a circuit breaker, a PLC controller, a current transformer, a heat dissipation base, a temperature sensor, a fan and a protective net cover; The top wall is provided with a first heat dissipation hole communicating with the inside of the cabinet body, and the side wall of the heat dissipation base is provided with a second heat dissipation hole; the ventilation in the cabinet is ensured by the heat dissipation base, the first heat dissipation hole and the second heat dissipation hole , to make the cabinet naturally dissipate heat. When the heat dissipation base cannot meet the heat dissipation requirements of the cabinet, and the temperature sensor detects that the temperature in the cabinet exceeds the upper limit, the PLC controller can automatically turn on the fan to force heat dissipation in the cabinet and improve the heat dissipation in the cabinet. High efficiency and good heat dissipation effect, and can also form a short-circuit protection mechanism through circuit breakers, PLC controllers and current transformers. When a short-circuit accident occurs in the power supply circuit of the cabinet, the power supply is automatically disconnected in time, with high safety.
Description
Technical Field
The utility model relates to the technical field of voltage power distribution cabinets, in particular to a low-voltage power distribution cabinet with a current transformer.
Background
The power distribution cabinet is a cabinet body integrated with electrical elements for electric energy distribution, and is characterized in that switch equipment, a measuring instrument, protective electrical equipment and auxiliary equipment are arranged in a closed or semi-closed metal cabinet or on a screen according to the electrical wiring requirement, the power distribution cabinet is used for distributing and controlling the electrical equipment, and the power distribution cabinet can also provide power-off protection when overload, short circuit and electric leakage occur to a circuit.
A short-circuit protection low-voltage distribution cabinet as disclosed in chinese patent [ application No. CN201721803032.0], includes the cabinet body, insulating panel and short-circuit protection device, and short-circuit protection device includes circuit breaker, PLC controller, current transformer and electronic lock: although this patent can be through insulating panel and short-circuit protection device when taking place the short-circuit accident in the switch board, timely automatic power off, but this patent only can carry out the nature heat dissipation to the inside of the cabinet body through the heat dissipation base, can not detect the internal temperature of cabinet, also can not be when the heat dissipation base can't satisfy the inside heat dissipation requirement of the cabinet body, the heat of the internal portion of forced discharge cabinet, and the radiating effect is not good.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims to provide a low-voltage power distribution cabinet with a current transformer, which can detect the internal temperature of a cabinet body and has a good heat dissipation effect.
In order to solve the technical problems, the technical scheme of the utility model is as follows: a low-voltage power distribution cabinet with a current transformer comprises a cabinet body, a circuit breaker fixedly installed inside the cabinet body and connected in series in a power supply loop of the cabinet body, a PLC controller fixedly installed inside the cabinet body and electrically connected with the circuit breaker, the current transformer fixedly installed inside the cabinet body, connected in series in the power supply loop of the cabinet body and electrically connected with the PLC controller, a heat dissipation base fixedly installed at the bottom of the cabinet body and arranged in a hollow mode, a temperature sensor fixedly installed inside the cabinet body and electrically connected with the PLC controller, a fan fixedly installed on the side wall of the cabinet body and communicated with the inside of the cabinet body, and a protection mesh enclosure fixedly installed on the outer wall of the cabinet body and used for shielding the fan; the top wall of the heat dissipation base is provided with a plurality of first heat dissipation holes communicated with the inside of the cabinet body, and the side wall of the heat dissipation base is provided with a plurality of second heat dissipation holes; a short-circuit protection mechanism can be formed by the circuit breaker, the PLC and the current transformer, and when a short-circuit accident occurs in a power supply loop of the cabinet body, a power supply is automatically cut off in time; through PLC controller, temperature sensor and fan, can be in the unable internal heat of in time discharge cabinet of heat dissipation base and when leading to the internal temperature of cabinet to exceed the upper limit, the PLC controller can be through opening the fan and force the internal heat of accumulating of the internal portion of discharge cabinet, reduces the internal temperature of the cabinet body, plays the guard action to the cabinet body.
Preferably, a first dust screen is fixedly arranged inside each of the first heat dissipation hole and the second heat dissipation hole; can block through first dust screen that dust and debris are followed first louvre and second louvre get into the inside of the cabinet body to can play the guard action to the internal portion of cabinet.
Preferably, the side wall of the cabinet body is provided with a vent, and the fan is fixedly installed in the vent.
Preferably, the protective mesh enclosure comprises a ventilation pipe communicated with the fan, a mounting ring which is sleeved and fixed on the outer wall of the ventilation pipe and fixed with the cabinet body through screws, and a second dust screen which is fixedly mounted inside the ventilation pipe; the protective net cover fixed by the screws is convenient to mount and dismount; can block dust and debris through the second dust screen and follow the ventilation pipe and vent get into the inside of the cabinet body to can play the guard action to the internal portion of cabinet.
Preferably, the cabinet body is hinged and fixed with a cabinet door.
Furthermore, a sealing strip matched with the front end face of the cabinet body is arranged on one side of the cabinet door facing the interior of the cabinet body; the sealing strip improves the sealing performance between the cabinet door and the cabinet body.
Furthermore, an electronic lock is fixedly installed on one side of the cabinet door facing the interior of the cabinet body, and a locking part correspondingly matched with the electronic lock is fixedly installed on the cabinet body; the electronic lock is electrically connected with the PLC.
The technical effects of the utility model are mainly embodied as follows: through the heat dissipation base, the internal ventilation of cabinet has been guaranteed to first louvre and second louvre, make the internal natural heat dissipation of cabinet, can't satisfy the heat dissipation demand of the cabinet body when the heat dissipation base, temperature sensor detects the internal temperature of cabinet and exceeds the upper limit, the fan can be opened automatically to the PLC controller, force the heat dissipation to the internal of cabinet, improve the internal radiating efficiency of cabinet, the radiating effect is good, and can also pass through the circuit breaker, PLC controller and current transformer constitute short-circuit protection mechanism, when the power supply circuit at the cabinet body takes place the short-circuit accident, in time automatic power off, the security is high.
Drawings
Fig. 1 is a schematic structural diagram of a low-voltage power distribution cabinet with a current transformer according to the present invention;
fig. 2 is a schematic view of fig. 1 with the protective mesh removed.
Reference numerals: the cabinet body 1, circuit breaker 2, PLC controller 3, current transformer 4, heat dissipation base 5, temperature sensor 6, fan 7, protective mesh enclosure 8, vent 11, cabinet door 12, sealing strip 13, electronic lock 14, sticking department 15, first louvre 51, second louvre 52, first dust screen 501, ventilation pipe 81, collar 82, second dust screen 83.
Detailed Description
The following detailed description of the embodiments of the present invention is provided in order to make the technical solution of the present invention easier to understand and understand.
In the present embodiment, it should be understood that the terms "middle", "upper", "lower", "top", "right", "left", "above", "back", "middle", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the present embodiment, if the connection or fixing manner between the components is not specifically described, the connection or fixing manner may be a bolt fixing manner, a pin connecting manner, or the like, which is commonly used in the prior art, and therefore, details thereof are not described in the present embodiment.
A low-voltage power distribution cabinet with a current transformer is disclosed as shown in figures 1-2, and comprises a cabinet body 1, a circuit breaker 2 which is fixedly installed inside the cabinet body 1 and is connected in series with a power supply loop of the cabinet body 1, a PLC controller 3 which is fixedly installed inside the cabinet body 1 and is electrically connected with the circuit breaker 2, a heat dissipation base 5 which is fixedly installed at the bottom of the cabinet body 1 and is arranged in a hollow manner, a temperature sensor 6 which is fixedly installed inside the cabinet body 1 and is electrically connected with the PLC controller 3, a fan 7 which is fixedly installed on a side wall of the cabinet body 1 and is communicated with the inside of the cabinet body 1, a temperature sensor which is fixedly installed on an outer wall of the cabinet body 1, a temperature sensor which is fixedly installed in the cabinet body 1 and is electrically connected with the PLC controller 3, and a fan 7 which is fixedly installed on a side wall of the cabinet body 1 and is communicated with the inside of the cabinet body 1, And a protective mesh enclosure 8 for shielding the fan 7; the short-circuit protection mechanism can be formed by the circuit breaker 2, the PLC 3 and the current transformer 4, and when a short-circuit accident happens to a power supply loop of the cabinet body 1, the power supply is automatically cut off in time. Through PLC controller 3, temperature sensor 6 and fan 7, can be in the heat base 5 can't in time discharge the heat in the cabinet body 1 and lead to the cabinet body 1 inside temperature to exceed the time limit, PLC controller 3 can force the heat of discharging the internal portion of cabinet 1 and accumulating through opening fan 7, reduces the inside temperature of the cabinet body 1, plays the guard action to the cabinet body 1.
The upper portion of one side lateral wall of the cabinet body 1 is provided with a vent 11, and the fan 7 is fixedly installed in the vent 11. The cabinet body 1 is hinged and fixedly connected with a cabinet door 12. And a sealing strip 13 matched with the front end face of the cabinet body 1 is arranged on one side of the cabinet door 12 facing the interior of the cabinet body 1. The sealing performance between the cabinet door 12 and the cabinet body 1 is improved through the sealing strips 13. An electronic lock 14 is fixedly installed on one side of the cabinet door 12 facing the inside of the cabinet body 1, and a locking portion 15 correspondingly matched with the electronic lock 14 is fixedly installed on the cabinet body 1. The electronic lock 14 is electrically connected with the PLC controller 3.
The top wall of the heat dissipation base 5 is provided with a plurality of first heat dissipation holes 51 communicated with the inside of the cabinet body 1, and the side wall of the heat dissipation base 51 is provided with a plurality of second heat dissipation holes 52. The first heat dissipation hole 51 and the second heat dissipation hole 52 are both fixedly provided with a first dust screen 501. The first dust screen 501 can prevent dust and sundries from entering the cabinet 1 through the first heat dissipation hole 51 and the second heat dissipation hole 52, so that the inside of the cabinet 1 can be protected.
The protective mesh cover 8 comprises a ventilation pipe 81 communicated with the fan 7, a mounting ring 82 which is sleeved and fixed on the outer wall of the ventilation pipe 81 and fixed with the cabinet body 1 through screws, and a second dustproof mesh 83 which is fixedly mounted inside the ventilation pipe 81. The screw-fixed protective mesh cover 8 is convenient to mount and dismount. The second dust screen 83 can prevent dust and sundries from entering the cabinet body 1 from the ventilation pipe 81 and the ventilation opening 11, so as to protect the interior of the cabinet body 1.
In this embodiment, the sealing strip 13 is a rubber sealing strip.
The technical effects of the utility model are mainly embodied as follows: through the heat dissipation base, the internal ventilation of cabinet has been guaranteed to first louvre and second louvre, make the internal natural heat dissipation of cabinet, can't satisfy the heat dissipation demand of the cabinet body when the heat dissipation base, temperature sensor detects the internal temperature of cabinet and exceeds the upper limit, the fan can be opened automatically to the PLC controller, force the heat dissipation to the internal of cabinet, improve the internal radiating efficiency of cabinet, the radiating effect is good, and can also pass through the circuit breaker, PLC controller and current transformer constitute short-circuit protection mechanism, when the power supply circuit at the cabinet body takes place the short-circuit accident, in time automatic power off, the security is high.
The above are only typical examples of the present invention, and besides, the present invention may have other embodiments, and all the technical solutions formed by equivalent substitutions or equivalent changes are within the scope of the present invention as claimed.
Claims (7)
1. The utility model provides a low-voltage power distribution cabinet with current transformer, includes the cabinet body, fixed mounting is in the circuit breaker of the internal portion of cabinet, fixed mounting be in the PLC controller of the internal portion of cabinet, fixed mounting be in the current transformer of the inside of the cabinet body, its characterized in that: the temperature control cabinet further comprises a heat dissipation base which is fixedly arranged at the bottom of the cabinet body and is arranged in a hollow mode, a temperature sensor which is fixedly arranged in the cabinet body, a fan which is fixedly arranged on the side wall of the cabinet body and is communicated with the inside of the cabinet body, and a protection mesh enclosure which is fixedly arranged on the outer wall of the cabinet body and is used for shielding the fan; the top wall of the heat dissipation base is provided with a plurality of first heat dissipation holes communicated with the inside of the cabinet body, and the side wall of the heat dissipation base is provided with a plurality of second heat dissipation holes.
2. The low-voltage power distribution cabinet with current transformer according to claim 1, characterized in that: and first dust screens are fixedly arranged in the first heat dissipation holes and the second heat dissipation holes.
3. The low-voltage power distribution cabinet with current transformers according to claim 1, characterized in that: the lateral wall of the cabinet body is provided with a vent, and the fan is fixedly installed in the vent.
4. The low-voltage power distribution cabinet with current transformer according to claim 1, characterized in that: the protection screen panel include with the ventilation pipe of fan intercommunication, cup joint fix on the outer wall of ventilation pipe, and with the collar of cabinet body fix with screw, and fixed mounting be in the second dust screen of the inside of ventilation pipe.
5. The low-voltage power distribution cabinet with current transformer according to claim 1, characterized in that: the cabinet body is hinged and fixed with a cabinet door.
6. The low-voltage power distribution cabinet with current transformers according to claim 5, characterized in that: and a sealing strip is arranged on one side of the cabinet door facing the interior of the cabinet body.
7. The low-voltage power distribution cabinet with current transformer of claim 5, characterized in that: the electronic lock is fixedly installed on one side, facing the inside of the cabinet body, of the cabinet door, and a locking portion correspondingly matched with the electronic lock is fixedly installed on the cabinet body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220107746.2U CN216750923U (en) | 2022-01-16 | 2022-01-16 | Low-voltage power distribution cabinet with current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220107746.2U CN216750923U (en) | 2022-01-16 | 2022-01-16 | Low-voltage power distribution cabinet with current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216750923U true CN216750923U (en) | 2022-06-14 |
Family
ID=81914192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220107746.2U Expired - Fee Related CN216750923U (en) | 2022-01-16 | 2022-01-16 | Low-voltage power distribution cabinet with current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216750923U (en) |
-
2022
- 2022-01-16 CN CN202220107746.2U patent/CN216750923U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220614 |