Low-voltage cabinet bus temperature monitoring device

Abstract

The utility model discloses a low-voltage cabinet bus temperature monitoring device, which relates to the technical field of low-voltage power distribution cabinets, is used for monitoring the temperature of a bus in real time, and comprises a fixing piece, a temperature detector, a heat dissipation piece and a processor, the fixing piece is provided with an accommodating groove for accommodating the bus; the temperature detector is arranged in the accommodating groove; the heat dissipation piece comprises a cover body and a heat dissipation fan, a heat dissipation cavity with a cavity opening is formed in the cover body, the cover body covers the fixing piece, the heat dissipation cavity communicates with the containing groove, heat dissipation holes are formed in the bottom wall of the heat dissipation cavity, and the heat dissipation fan is arranged on the bottom wall of the heat dissipation cavity; the processor is arranged on the side wall of the heat dissipation cavity and is electrically connected with the temperature detector and the heat dissipation fan; according to the technical scheme provided by the utility model, the safe and stable operation of the low-voltage cabinet is ensured by monitoring the temperature of the bus in real time and maintaining the temperature of the bus within a safe range.

Description

Technical Field

[0001] The utility model relates to the technical field of low-voltage power distribution cabinets, in particular to a low-voltage cabinet busbar temperature monitoring device. Background Art

[0002] Low-voltage cabinets play an important role in power distribution, protection, control and management in electrical systems, and are an indispensable part of electrical systems. The busbar of the low-voltage cabinet plays an important role in power transmission, connection of various equipment, conduction and heat dissipation in the low-voltage cabinet. The low-voltage cabinet will generate heat when it runs at high load for a long time. If the busbar temperature is too high, it may cause dangerous situations such as overload, short circuit or fire of the low-voltage cabinet. Therefore, real-time monitoring of the temperature of the low-voltage cabinet busbar and ensuring that the busbar temperature is maintained within a certain range is one of the important means to ensure the safe and stable operation of the low-voltage cabinet. Utility Model Content

[0003] The main purpose of the utility model is to provide a low-voltage cabinet busbar temperature monitoring device, aiming to improve the safety of the low-voltage cabinet.

[0004] In order to achieve the above-mentioned purpose, the low-voltage cabinet busbar temperature monitoring device proposed in the utility model is used to monitor the temperature of the busbar in real time. The low-voltage cabinet busbar temperature monitoring device comprises:

[0005] A fixing member, wherein the fixing member is provided with a receiving groove for receiving the busbar;

[0006] A temperature detector, the temperature detector is arranged in the containing tank;

[0007] A heat sink, the heat sink comprising a cover and a heat sink fan, the cover is provided with a heat sink cavity having a cavity opening, the cover is provided on the fixing member, the heat sink cavity is communicated with the receiving groove, a heat sink hole is provided on the bottom wall of the heat sink cavity, and the heat sink fan is provided on the bottom wall of the heat sink cavity; and

[0008] A processor is arranged on a side wall of the heat dissipation cavity and is electrically connected to the temperature detector and the heat dissipation fan.

[0009] In an embodiment of the present invention, a plurality of tooth grooves are spaced apart on the outer side wall of the accommodating groove.

[0010] In an embodiment of the present invention, the cross-sectional area of ​​the accommodating groove gradually decreases from an end close to the cover body to an end far away from the cover body.

[0011] In an embodiment of the present invention, a plurality of heat dissipation holes are formed on the bottom wall of the heat dissipation cavity.

[0012] In one embodiment of the present utility model, the low-voltage cabinet busbar temperature monitoring device includes an alarm, which is arranged on the bottom wall of the heat dissipation cavity and is electrically connected to the processor.

[0013] In one embodiment of the utility model, the low-voltage cabinet busbar temperature monitoring device includes two temperature detectors, side panels are provided on opposite sides of the slot of the accommodating slot, and each temperature detector is arranged on a side of the side panel facing away from the cover body; the two temperature detectors are electrically connected to the processor.

[0014] In an embodiment of the present invention, connecting plates are provided on opposite sides of the cavity opening of the heat dissipation cavity, and each of the connecting plates is detachably connected to one of the side plates.

[0015] In one embodiment of the utility model, a locking member is provided on a side of each connecting plate facing the side plate, and the locking member includes a connected guide shaft and a locking block, and one end of the guide shaft away from the locking block is connected to the connecting plate, and each side plate is provided with a locking groove adapted to the locking block, and each locking block can be inserted into the locking groove of the side plate and abut against the side plate after rotation. In one embodiment of the utility model, both sides of the locking block have abutment portions, and the side plate is provided with a matching groove adapted to the abutment portion, and the matching groove is connected to the locking groove.

[0016] In an embodiment of the present invention, the locking member further comprises a spring, and the spring is sleeved on the guide shaft and located between the connecting plate and the locking block.

[0017] In the technical solution of the present utility model, when the temperature detector detects that the temperature of the busbar is higher than a preset value, the temperature detector transmits a signal to the processor, and the processor controls the cooling fan to start after receiving the signal, so that the hot air in the receiving slot flows to the cooling cavity and finally flows out through the cooling holes to achieve heat dissipation of the busbar; when the temperature detector detects that the temperature of the busbar is lower than a preset value, it transmits a signal to the processor, and the processor controls the cooling fan to stop; the technical solution of the present utility model ensures the safe and stable operation of the low-voltage cabinet by monitoring the temperature of the busbar in real time and maintaining the temperature of the busbar within a safe range. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0019] Figure 1 The utility model provides a structural schematic diagram of an embodiment of a low-voltage cabinet busbar temperature monitoring device;

[0020] Figure 2 A cross-sectional view of an embodiment of a low-voltage cabinet busbar temperature monitoring device is provided for the utility model;

[0021] Figure 3 A structural schematic diagram of an embodiment of a fixing member is provided for the utility model;

[0022] Figure 4 A schematic structural diagram of an embodiment of a heat sink is provided for the utility model;

[0023] Figure 5 The utility model provides a structural schematic diagram of an embodiment of a locking member.

[0024] Description of Figure Numbers:

[0025] 100. Low-voltage cabinet busbar temperature monitoring device; 1. Fixing piece; 11. Receiving groove; 111. Tooth groove; 112. Side plate; 112a. Locking groove; 112b. Matching groove; 2. Temperature detector; 3. Heat sink; 31. Cover; 311. Heat sink cavity; 312. Heat sink hole; 313. Connecting plate; 32. Heat sink fan; 4. Alarm; 5. Locking piece; 51. Guide shaft; 52. Locking block; 521. Abutment portion; 53. Spring; 200. Busbar.

[0026] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0027] 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 of 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.

[0028] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0029] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0030] The utility model provides a low-voltage cabinet busbar temperature monitoring device 100.

[0031] See also Figure 1 and Figure 2 In one embodiment of the utility model, the low-voltage cabinet busbar temperature monitoring device 100 is used to monitor the temperature of the busbar 200 in real time. The low-voltage cabinet busbar temperature monitoring device 100 includes a fixing member 1, a temperature detector 2, a heat sink 3 and a processor. The fixing member 1 is provided with a receiving groove 11 for accommodating the busbar 200; the temperature detector 2 is arranged in the receiving groove 11; the heat sink 3 includes a cover body 31 and a heat dissipation fan 32, the cover body 31 is provided with a heat dissipation cavity 311 with a cavity opening, the cover body 31 is covered on the fixing member 1, the heat dissipation cavity 311 is connected with the receiving groove 11, the bottom wall of the heat dissipation cavity 311 is provided with a heat dissipation hole 312, and the heat dissipation fan 32 is arranged on the bottom wall of the heat dissipation cavity 311; the processor is arranged on the side wall of the heat dissipation cavity 311, and is electrically connected to the temperature detector 2 and the heat dissipation fan 32.

[0032] In the technical solution of the present utility model, when the temperature detector 2 detects that the temperature of the busbar 200 is higher than a preset value, the temperature detector 2 transmits a signal to the processor, and the processor controls the cooling fan 32 to start after receiving the signal, so that the hot air in the receiving slot 11 flows to the cooling cavity 311 and finally flows out through the cooling hole 312 to achieve heat dissipation of the busbar 200; when the temperature detector 2 detects that the temperature of the busbar 200 is lower than a preset value, it transmits a signal to the processor, and the processor controls the cooling fan 32 to stop; the technical solution of the present utility model ensures the safe and stable operation of the low-voltage cabinet by monitoring the temperature of the busbar 200 in real time and maintaining the temperature of the busbar 200 within a safe range; the processor adopts the HT66F018 single-chip microcomputer, and the temperature detector 2 adopts the TS318-11C55 contact temperature sensor.

[0033] In order to increase the contact area of ​​the fixing member 1, please refer to Figure 2 In one embodiment of the utility model, the outer side wall of the receiving groove 11 is provided with a plurality of tooth grooves 111 at intervals. Providing a plurality of the tooth grooves 111 can increase the contact area between the fixing member 1 and the air. A larger contact area can improve the efficiency of heat transfer from the surface of the fixing member 1 to the air, thereby allowing the temperature generated by the busbar 200 to be transferred to the air through the plurality of tooth grooves 111, thereby improving the heat dissipation effect of the busbar 200; and by increasing the number or size of the tooth grooves 111, the heat dissipation surface area can be increased, thereby providing more surfaces for heat dissipation, making the heat dissipation more effective.

[0034] To further increase the contact area of ​​the fixing member 1, please refer to Figure 1 and Figure 3 In one embodiment of the utility model, the cross-sectional area of ​​the receiving groove 11 gradually decreases from one end close to the cover body 31 to one end away from the cover body 31. This setting can make the contact area between the receiving groove 11 and the air larger, and increasing the contact area with the air can effectively improve the heat transfer efficiency, so that the heat can be transferred from the busbar 200 to the external environment faster, thereby improving the heat dissipation effect; in addition, this structural setting can also make the external air flow more smoothly, reduce the airflow resistance around the busbar 200, and further promote the heat transfer and improve the heat dissipation effect.

[0035] To improve heat dissipation efficiency, refer to Figure 1 and Figure 4In one embodiment of the utility model, the bottom wall of the heat dissipation cavity 311 is provided with a plurality of heat dissipation holes 312. The plurality of heat dissipation holes 312 increase the heat dissipation surface area, so that more heat can be released to the environment through the heat dissipation holes 312, which can effectively reduce the temperature, thereby extending the service life of the low-voltage cabinet busbar temperature monitoring device 100 and improving its performance stability.

[0036] See also Figure 1 In one embodiment of the utility model, the low-voltage cabinet bus temperature monitoring device 100 includes an alarm 4, which is arranged on the bottom wall of the heat dissipation cavity 311 and is electrically connected to the processor. When the temperature detector 2 detects that the temperature of the bus 200 is higher than a preset value, the temperature detector 2 transmits a signal to the processor, and the processor controls the cooling fan 32 to start after receiving the signal, so that the hot air in the receiving slot 11 flows to the heat dissipation cavity 311 and finally flows out through the heat dissipation hole 312 to achieve heat dissipation of the bus 200, and controls the alarm 4 to alarm to remind the staff; when the temperature detector 2 detects that the temperature of the bus 200 is lower than a preset value, it transmits a signal to the processor, and the processor controls the cooling fan 32 to stop, and controls the alarm 4 to stop alarming; the alarm 4 can issue an alarm in time when the temperature exceeds the safe range, helping people to find problems in time and take measures to prevent damage to the low-voltage cabinet bus temperature monitoring device 100.

[0037] See also Figure 2 In one embodiment of the utility model, the low-voltage cabinet busbar temperature monitoring device 100 includes two temperature detectors 2, and side panels 112 are provided on opposite sides of the notch of the receiving slot 11, and each temperature detector 2 is provided on a side of the side panel 112 facing away from the cover body 31; both temperature detectors 2 are electrically connected to the processor. By setting two temperature detectors 2, even if one temperature detector 2 fails, the other temperature detector 2 can still provide accurate temperature data to ensure the safe operation of the equipment. By comparing the temperature data between the two temperature detectors 2, accuracy correction can be performed. If the readings of the two temperature detectors 2 differ greatly, it may mean that one of the temperature detectors 2 has a problem and needs to be repaired or replaced; setting two temperature detectors 2 and setting a gap between them can improve the coverage of temperature monitoring and ensure that temperature changes in the entire area can be accurately monitored.

[0038] In order to facilitate maintenance of the heat sink 3 and the fixing member 1, in one embodiment of the utility model, connecting plates 313 are provided on opposite sides of the cavity opening of the heat sink cavity 311, and each connecting plate 313 is detachably connected to one of the side plates 112. The detachable connection may be made by screws or by a combination of a buckle and a slot, and the utility model does not limit this; when the fixing member 1 or the heat sink 3 fails, the connecting plate 313 and the side plate 112 are disassembled, and the internal components thereof can be replaced or repaired, thereby extending the service life of the low-voltage cabinet busbar temperature monitoring device 100 and improving its convenience of use.

[0039] See also Figure 2 and Figure 5 In one embodiment of the utility model, a locking member 5 is provided on the side of each connecting plate 313 facing the side plate 112, and the locking member 5 includes a guide shaft 51 and a locking block 52 connected to each other. The end of the guide shaft 51 away from the locking block 52 is connected to the connecting plate 313, and each side plate 112 is provided with a locking groove 112a adapted to the locking block 52. Each locking block 52 can be inserted into the locking groove 112a of the side plate 112 and abut against the side plate 112 after rotation. When connecting the fixing member 1 and the cover body 31, the locking block 52 is passed through the locking groove 112a, and the cover body 31 is rotated by a certain angle so that part of the structure of the locking block 52 abuts against the side plate 112, thereby realizing the connection between the fixing member 1 and the cover body 31; when disassembling the fixing member 1 and the cover body 31, the cover body 31 is rotated by a certain angle, at which time the locking block 52 does not abut against the side wall, and then the locking block 52 is pulled out of the locking groove 112a to realize the disassembly of the fixing member 1 and the cover body 31, and an arrow mark can be set on the side of the connecting plate 313 facing the side plate 112 to prompt the user the rotation direction.

[0040] To improve the connection stability between the cover 31 and the fixing member 1, please refer to Figure 2 and Figure 5In one embodiment of the utility model, the two sides of the locking block 52 have abutting portions 521, and the side plate 112 is provided with a matching groove 112b adapted to the abutting portion 521, and the matching groove 112b is communicated with the locking groove 112a. When connecting the fixing member 1 and the cover body 31, the locking block 52 is passed through the locking groove 112a, and the cover body 31 is rotated by a certain angle, so that the abutting portion 521 is accommodated and limited in the matching groove 112b, thereby realizing the connection between the fixing member 1 and the cover body 31; when disassembling the fixing member 1 and the cover body 31, the cover body 31 is pressed down and rotated, at which time the abutting portion 521 is disengaged from the matching groove 112b, and then the locking block 52 is pulled out from the locking groove 112a, thereby realizing the disassembly of the fixing member 1 and the cover body 31; the abutting portion 521 and the matching groove 112b are provided to improve the connection stability between the cover body 31 and the fixing member 1.

[0041] See also Figure 2 and Figure 5 In one embodiment of the utility model, the locking member 5 further includes a spring 53 , and the spring 53 is sleeved on the guide shaft 51 and located between the connecting plate 313 and the locking block 52 . When connecting the fixing member 1 and the cover body 31, the locking block 52 is passed through the locking groove 112a. At this time, the spring 53 is squeezed and compressed by the side plate 112 and the connecting plate 313, and the cover body 31 is rotated at a certain angle so that part of the structure of the locking block 52 abuts against the side plate 112, and the cover body 31 and the fastener are released. The spring 53 rebounds but is still compressed, thereby realizing the connection between the fixing member 1 and the cover body 31; when disassembling the fixing member 1 and the cover body 31, the cover body 31 is pressed down. At this time, the spring 53 is compressed, and the cover body 31 is rotated. The locking block 52 does not abut against the side wall. Under the rebound force of the spring 53, the locking block 52 is pulled out of the locking groove 112a, thereby realizing the disassembly of the fixing member 1 and the cover body 31. The provision of the spring 53 can improve the connection stability and disassembly convenience of the cover body 31 and the fixing member 1.

[0042] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A low voltage cabinet busbar temperature monitoring device, used to monitor the busbar temperature in real time, It is characterized in that The low voltage cabinet busbar temperature monitoring device comprises: A fixing member, wherein the fixing member is provided with a receiving groove for receiving the busbar; A temperature detector, the temperature detector is arranged in the containing tank; A heat sink, the heat sink comprising a cover and a heat sink fan, the cover is provided with a heat sink cavity having a cavity opening, the cover is provided on the fixing member, the heat sink cavity is communicated with the receiving groove, a heat sink hole is provided on the bottom wall of the heat sink cavity, and the heat sink fan is provided on the bottom wall of the heat sink cavity; and A processor is arranged on a side wall of the heat dissipation cavity and is electrically connected to the temperature detector and the heat dissipation fan.

2. The low voltage cabinet busbar temperature monitoring device according to claim 1, It is characterized in that The outer side wall of the receiving groove is provided with a plurality of tooth grooves at intervals.

3. The low voltage cabinet busbar temperature monitoring device according to claim 1, It is characterized in that The cross-sectional area of ​​the accommodating groove gradually decreases from an end close to the cover body to an end far away from the cover body.

4. The low voltage cabinet busbar temperature monitoring device according to claim 1, It is characterized in that The bottom wall of the heat dissipation cavity is provided with a plurality of heat dissipation holes.

5. The low voltage cabinet busbar temperature monitoring device according to claim 1, It is characterized in that The low-voltage cabinet busbar temperature monitoring device comprises an alarm, which is arranged on the bottom wall of the heat dissipation cavity and is electrically connected to the processor.

6. The low voltage cabinet busbar temperature monitoring device according to claim 1, It is characterized in that The low-voltage cabinet busbar temperature monitoring device includes two temperature detectors, and side panels are provided on opposite sides of the slot of the accommodating slot. Each temperature detector is arranged on a side of the side panel facing away from the cover body; the two temperature detectors are electrically connected to the processor.

7. The low voltage cabinet busbar temperature monitoring device according to claim 6, It is characterized in that Connecting plates are provided on opposite sides of the cavity opening of the heat dissipation cavity, and each of the connecting plates is detachably connected to one of the side plates.

8. The low voltage cabinet busbar temperature monitoring device according to claim 7, It is characterized in that A locking piece is provided on the side of each connecting plate facing the side plate, and the locking piece includes a connected guide shaft and a locking block. The end of the guide shaft away from the locking block is connected to the connecting plate. Each side plate is provided with a locking groove adapted to the locking block. Each locking block can be inserted into the locking groove of the side plate and abut against the side plate after rotation.

9. The low voltage cabinet busbar temperature monitoring device according to claim 8, It is characterized in that The locking block has abutment parts on both sides, and the side plate is provided with matching grooves adapted to the abutment parts, and the matching grooves are communicated with the locking grooves.

10. The low voltage cabinet busbar temperature monitoring device according to claim 8, It is characterized in that The locking member further comprises a spring, which is sleeved on the guide shaft and located between the connecting plate and the locking block.

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