CN215011143U

CN215011143U - High-reliability three-phase liquid crystal multifunctional instrument

Info

Publication number: CN215011143U
Application number: CN202121708808.7U
Authority: CN
Inventors: 张国强
Original assignee: Shandong Dongheng Electric Power Technology Co ltd
Current assignee: Shandong Dongheng Electric Power Technology Co ltd
Priority date: 2021-07-27
Filing date: 2021-07-27
Publication date: 2021-12-03
Anticipated expiration: 2031-07-27

Abstract

The utility model discloses a high reliability three-phase liquid crystal multifunctional instrument, including instrument body and the backshell of setting on the instrument body, all be fixed with a plurality of U-shaped boards on four sides of backshell inner wall, and be formed with air guide channel one between U-shaped board and the backshell, it is a plurality of the one end of U-shaped board is fixed with same fixed plate, be formed with air guide channel two between the trailing flank of fixed plate and backshell inner wall, and air guide channel two is linked together with air guide channel one, be fixed with the connecting pipe on the fixed plate. This high reliability three-phase liquid crystal multifunctional instrument is through the casing replacement who originally has the louvre with on the instrument body for the backshell that does not take the louvre to install heat dissipation fan one and heat dissipation fan two respectively inside and outside, the effect of deuterogamying heat radiation fins can realize the quick heat dissipation of instrument body under the condition of not introducing outside cold air, has effectively improved the reliability of instrument body in the in-service use.

Description

High-reliability three-phase liquid crystal multifunctional instrument

Technical Field

The utility model relates to a multi-functional instrument of three-phase liquid crystal technical field especially relates to a multi-functional instrument of high reliability three-phase liquid crystal.

Background

The three-phase liquid crystal multifunctional instrument is designed aiming at the power monitoring requirements of power systems, industrial and mining enterprises, public facilities and intelligent buildings, and can measure all common power parameters, such as three-phase current and voltage, active and reactive power, electric power and harmonic waves.

At present three-phase liquid crystal multifunctional instrument usually can set up the louvre on its backshell, cooperates the effect of heat dissipation fan again to realize the high-efficient heat dissipation of instrument itself, nevertheless because of the design of its louvre, leads to dust and moisture among the external environment and etc. to enter into the inside of instrument itself easily to lead to the instrument to break down easily, the reliability is low.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a high reliability three-phase liquid crystal multifunctional instrument has solved present three-phase liquid crystal multifunctional instrument and can set up the louvre on its backshell usually, and the effect of deuterogamying heat dissipation fan realizes the high-efficient heat dissipation of instrument itself, nevertheless because of the design of its louvre, leads to dust and moisture etc. in the external environment to enter into the inside of instrument itself easily to lead to the instrument to break down easily, the problem that the reliability is low.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a high reliability three-phase liquid crystal multifunctional instrument, includes instrument body and the backshell of setting on the instrument body, all be fixed with a plurality of U-shaped boards on four sides of backshell inner wall, and be formed with air guide channel one between U-shaped board and the backshell, it is a plurality of the one end of U-shaped board is fixed with same fixed plate, be formed with air guide channel two between the trailing flank of fixed plate and backshell inner wall, and air guide channel two is linked together with air guide channel one, be fixed with the connecting pipe on the fixed plate, and the internally mounted of connecting pipe has heat dissipation fan one, the rear end of backshell has heat dissipation fan two through connecting assembling movable mounting, and all is fixed with a plurality of heat radiation fins on four sides of backshell outer wall.

By adopting the scheme, the shell which originally has the heat dissipation holes on the instrument body is replaced by the rear shell without the heat dissipation holes, the first heat dissipation fan and the second heat dissipation fan are respectively arranged inside and outside the shell, and the action of the heat dissipation fins is matched, so that the rapid heat dissipation of the instrument body can be realized under the condition of not introducing external cold air, and the reliability of the instrument body in the actual use process is effectively improved; the first heat dissipation fan can introduce the air in the rear shell into the second air guide channel and then return the air to the rear shell through the first air guide channels, so that the circulation of the air is realized, and the heat in the air can be rapidly transferred to the rear shell and the heat dissipation fins; the second heat dissipation fan can accelerate the flow speed of the air around the heat dissipation fins.

In the above scheme, it should be noted that the first heat dissipation fan and the second heat dissipation fan are both electrically connected to an external power supply.

Preferably, an outer sleeve is sleeved on the outer side of the rear shell, the inner surface of the outer sleeve is in contact with the radiating fins, a third air guide channel is formed by matching two adjacent radiating fins with the inner wall of the outer sleeve, and an exhaust channel is formed between the outer sleeve and the display panel of the instrument body.

By adopting the scheme, the outer sleeve is arranged, so that a plurality of air guide channels III which are not interfered with each other can be formed between the two adjacent radiating fins, the air flow generated by the radiating fan II can completely flow through the air guide channels III and then is discharged through the exhaust channel, and the radiating effect is better.

Preferably, the outer sleeve is square tubular structure, and the outer sleeve includes four curb plates, four the curb plate passes through the hasp lock to be connected, be provided with locating component between curb plate and the heat radiation fin.

By adopting the scheme, the outer sleeve is split into the four side plates which are connected in a buckling manner, so that the outer sleeve is convenient to disassemble and assemble, the surfaces of the radiating fins can be cleaned by people, and the radiating efficiency of the radiating fins is ensured.

Preferably, the positioning assembly comprises a socket and an insert block which are matched, the socket is embedded in the heat dissipation fin, and the insert block is fixed on the side plate.

By adopting the scheme, the positioning assembly is arranged, and the socket and the insertion block are matched, so that the side plate and the radiating fins cannot generate relative displacement, and the stability of the outer sleeve is improved.

Preferably, the connecting assembly comprises a rectangular pyramid, a telescopic rod and a spring, the rectangular pyramid is fixed on the rear side face of the rear shell, two ends of the telescopic rod are respectively fixedly connected with the rectangular pyramid and the second heat dissipation fan, the spring is sleeved on the telescopic rod, and two ends of the spring are respectively fixedly connected with the rectangular pyramid and the second heat dissipation fan.

By adopting the scheme, the connecting assembly is arranged, and the airflow generated by the second radiating fan can accurately enter the third air guide channel under the action of the rectangular pyramid; the setting of telescopic link and spring conveniently carries out slight regulation to the position of heat dissipation fan two.

Preferably, one side of the second heat dissipation fan, which is far away from the spring, is fixedly provided with a dust filter screen, and the dust filter screen is in contact with the outer sleeve.

By adopting the scheme, the dust filter screen is arranged, so that gas passing through the second heat dissipation fan can be filtered, and impurities in the gas are filtered.

Compared with the prior art, the beneficial effects of the utility model are that:

according to the high-reliability three-phase liquid crystal multifunctional instrument, the shell which is originally provided with the heat dissipation holes on the instrument body is replaced by the rear shell without the heat dissipation holes, the first heat dissipation fan and the second heat dissipation fan are respectively arranged inside and outside the shell, and the functions of the heat dissipation fins are matched, so that the rapid heat dissipation of the instrument body can be realized under the condition that external cold air is not introduced, and the reliability of the instrument body in the actual use process is effectively improved;

this high reliability three-phase liquid crystal multifunctional instrument through setting up the outer sleeve for can form a plurality of air guide channel three of mutual noninterference between two adjacent heat radiation fins, make the air current that second heat dissipation fan produced can flow through air guide channel three afterwards rethread exhaust passage discharge completely, the radiating effect is better.

Drawings

FIG. 1 is an overall structure diagram of the present invention;

fig. 2 is a cross-sectional view of the rear housing of the present invention;

fig. 3 is a cross-sectional view of the socket of the present invention.

In the figure: 1. a meter body; 2. a rear housing; 3. a U-shaped plate; 4. a first air guide channel; 5. a fixing plate; 6. a connecting pipe; 7. a first heat dissipation fan; 8. a second air guide channel; 9. a second heat dissipation fan; 10. heat dissipation fins; 11. an outer sleeve; 12. a third air guide channel; 13. a socket; 14. inserting a block; 15. a dust filter screen; 16. a rectangular pyramid; 17. a telescopic rod; 18. a spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, a high-reliability three-phase liquid crystal multifunctional instrument comprises an instrument body 1 and a rear case 2 arranged on the instrument body 1, wherein a plurality of U-shaped plates 3 are fixed on four side surfaces of the inner wall of the rear case 2, a first air guide channel 4 is formed between each U-shaped plate 3 and the rear case 2, one end of each U-shaped plate 3 is fixed with a same fixing plate 5, a second air guide channel 8 is formed between each fixing plate 5 and the rear side surface of the inner wall of the rear case 2, the second air guide channel 8 is communicated with the first air guide channel 4, a connecting pipe 6 is fixed on each fixing plate 5, a first heat dissipation fan 7 is installed inside each connecting pipe 6, a second heat dissipation fan 9 is movably installed at the rear end of the rear case 2 through a connecting assembly, and a plurality of heat dissipation fins 10 are fixed on four side surfaces of the outer wall of the rear case 2; the shell originally provided with the heat dissipation holes on the instrument body 1 is replaced by the rear shell 2 without the heat dissipation holes, the first heat dissipation fan 7 and the second heat dissipation fan 9 are respectively installed inside and outside the instrument body, and the effect of the heat dissipation fins 10 is matched, so that the instrument body 1 can be quickly cooled without introducing external cold air, and the reliability of the instrument body 1 in the actual use process is effectively improved; the first heat dissipation fan 7 can introduce the air in the rear shell 2 into the second air guide channel 8 and then return the air into the rear shell 2 through the first air guide channels 4, so that the circulation of the air is realized, and the heat in the air can be rapidly transferred to the rear shell 2 and the heat dissipation fins 10; the second heat dissipation fan 9 can increase the flow speed of the air around the heat dissipation fins 10.

An outer sleeve 11 is sleeved on the outer side of the rear shell 2, the inner surface of the outer sleeve 11 is in contact with the heat dissipation fins 10, two adjacent heat dissipation fins 10 are matched with the inner wall of the outer sleeve 11 to form a third air guide channel 12, and an exhaust channel is formed between the outer sleeve 11 and the display panel of the instrument body 1; through the arrangement of the outer sleeve 11, a plurality of air guide channels III 12 which are not interfered with each other can be formed between two adjacent heat dissipation fins 10, so that air flow generated by the heat dissipation fan II 9 can completely flow through the air guide channels III 12 and then is discharged through the exhaust channel, and the heat dissipation effect is better.

The outer sleeve 11 is a square tube structure, the outer sleeve 11 comprises four side plates, the four side plates are buckled and connected through lock catches, and a positioning assembly is arranged between each side plate and the corresponding heat dissipation fin 10; the outer sleeve 11 is disassembled into four side plates which are connected in a buckling manner, so that the outer sleeve 11 is convenient to disassemble and assemble, the surface of the radiating fin 10 can be cleaned by people, and the radiating efficiency of the radiating fin is ensured.

The positioning assembly comprises a socket 13 and an insertion block 14 which are matched, the socket 13 is embedded in the heat dissipation fin 10, and the insertion block 14 is fixed on the side plate; by arranging the positioning assembly, the socket 13 is matched with the insertion block 14, so that the side plate and the radiating fins 10 cannot generate relative displacement, and the stability of the outer sleeve 11 is improved.

The connecting assembly comprises a rectangular pyramid 16, a telescopic rod 17 and a spring 18, the rectangular pyramid 16 is fixed on the rear side surface of the rear shell 2, two ends of the telescopic rod 17 are respectively fixedly connected with the rectangular pyramid 16 and the second heat dissipation fan 9, the spring 18 is sleeved on the telescopic rod 17, and two ends of the spring 18 are respectively fixedly connected with the rectangular pyramid 16 and the second heat dissipation fan 9; by arranging the connecting assembly, the airflow generated by the second heat dissipation fan 9 can accurately enter the air guide channel III 12 by utilizing the action of the rectangular pyramid 16; the telescopic rod 17 and the spring 18 are arranged, so that the position of the second heat dissipation fan 9 can be finely adjusted.

A dust filter screen 15 is fixedly arranged on one side of the second heat dissipation fan 9 away from the spring 18, and the dust filter screen 15 is in contact with the outer sleeve 11; through setting up dust filter 15, can filter the gas through second heat dissipation fan 9, impurity among them of filtering.

In conclusion, when the high-reliability three-phase liquid crystal multifunctional instrument is used, the instrument body 1 can monitor and display electric parameters on a liquid crystal display screen, in the process, it is required to ensure that the first heat dissipation fan 7 and the second heat dissipation fan 9 are in an open state, the first heat dissipation fan 7 can introduce the gas inside the rear shell 2 into the second air guide channel 8 and then return the gas into the rear shell 2 through the first air guide channels 4, gas circulation is realized, heat in the gas can be rapidly transferred to the rear shell 2 and the heat dissipation fins 10, the airflow generated by the second heat dissipation fan 9 can completely flow through the third air guide channels 12 and then is discharged through the exhaust channel, the heat dissipation effect is good, rapid heat dissipation of the instrument body 1 can be realized under the condition that external cold air is not introduced, and the reliability of the instrument body 1 in the actual use process is effectively improved.

It is noted that, herein, 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.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a multi-functional instrument of high reliability three-phase liquid crystal, its characterized in that, includes instrument body (1) and backshell (2) of setting on instrument body (1), all be fixed with a plurality of U-shaped board (3) on four sides of backshell (2) inner wall, and be formed with air guide channel (4) between U-shaped board (3) and backshell (2), a plurality of the one end of U-shaped board (3) is fixed with same fixed plate (5), be formed with air guide channel two (8) between the trailing flank of fixed plate (5) and backshell (2) inner wall, and air guide channel two (8) are linked together with air guide channel one (4), be fixed with connecting pipe (6) on fixed plate (5), and the internally mounted of connecting pipe (6) has heat dissipation fan one (7), but the rear end of backshell (2) is through mobile mounting have heat dissipation fan two (9), and a plurality of radiating fins (10) are fixed on four side surfaces of the outer wall of the rear shell (2).

2. The multifunctional three-phase liquid crystal instrument with high reliability as claimed in claim 1, wherein an outer sleeve (11) is sleeved outside the rear case (2), the inner surface of the outer sleeve (11) contacts with the heat dissipation fins (10), two adjacent heat dissipation fins (10) are matched with the inner wall of the outer sleeve (11) to form a third air guide channel (12), and an exhaust channel is formed between the outer sleeve (11) and the display panel of the instrument body (1).

3. The multifunctional three-phase liquid crystal instrument with high reliability as claimed in claim 2, wherein the outer sleeve (11) is a square tube structure, the outer sleeve (11) comprises four side plates, the four side plates are buckled and connected through a lock catch, and a positioning assembly is arranged between the side plates and the heat dissipation fins (10).

4. A highly reliable three-phase liquid crystal multifunctional instrument as claimed in claim 3, wherein said positioning assembly comprises a socket (13) and a plug (14) matched, said socket (13) is embedded in the heat sink fin (10), said plug (14) is fixed on the side plate.

5. The high-reliability three-phase liquid crystal multifunctional instrument is characterized in that the connecting assembly comprises a rectangular pyramid (16), a telescopic rod (17) and a spring (18), the rectangular pyramid (16) is fixed on the rear side surface of the rear shell (2), two ends of the telescopic rod (17) are respectively fixedly connected with the rectangular pyramid (16) and the second heat dissipation fan (9), the spring (18) is sleeved on the telescopic rod (17), and two ends of the spring (18) are respectively fixedly connected with the rectangular pyramid (16) and the second heat dissipation fan (9).

6. The high-reliability three-phase liquid crystal multifunctional instrument is characterized in that a dust filter screen (15) is fixedly mounted on one side, far away from the spring (18), of the second heat dissipation fan (9), and the dust filter screen (15) is in contact with the outer sleeve (11).