CN112421451B - Relay protection device - Google Patents

Relay protection device Download PDF

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Publication number
CN112421451B
CN112421451B CN202011327349.8A CN202011327349A CN112421451B CN 112421451 B CN112421451 B CN 112421451B CN 202011327349 A CN202011327349 A CN 202011327349A CN 112421451 B CN112421451 B CN 112421451B
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China
Prior art keywords
protection device
relay protection
cold water
air outlet
heat absorption
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CN202011327349.8A
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CN112421451A (en
Inventor
张安龙
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Shenzhen Power Supply Co ltd
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Shenzhen Power Supply Co ltd
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Priority to CN202011327349.8A priority Critical patent/CN112421451B/en
Publication of CN112421451A publication Critical patent/CN112421451A/en
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/56Cooling; Ventilation
    • H02B1/565Cooling; Ventilation for cabinets
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/54Anti-seismic devices or installations

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)

Abstract

The invention discloses a relay protection device, which comprises a shell, a relay protection device body and a baffle, wherein a heat absorption coil is arranged in the shell, one end of the heat absorption coil is connected with a water pump, the other end of the heat absorption coil is communicated with an open type cold water tank, cold water in the open type cold water tank is pumped into the heat absorption coil by the water pump through a water inlet pipe, the temperature of the cold water in the heat absorption coil after heat absorption is raised, and the cold water flows back into the open type cold water tank to be mixed with original cold water; the air inlet has been seted up to one side of casing, installs the heat dissipation fan in the position of air inlet, and the gas outlet has been seted up to the opposite side of casing, and the cover of giving vent to anger is installed in the outside of gas outlet, and the heat dissipation fan blows in the casing with external cold air inside, and the circulation of air blows in the cover of giving vent to anger in with the heat that relay protection device body produced through the gas outlet. The relay protection device improves the heat dissipation performance, can absorb shock to the relay protection device, and avoids the damage of internal electric elements caused by external shock.

Description

Relay protection device
Technical Field
The invention relates to the technical field of power equipment, in particular to a relay protection device.
Background
In the prior art, when a power element (such as a generator, a line, etc.) in a power system or the power system itself has a fault, which endangers the safe operation of the power system, an automatic device capable of sending a warning signal to an operation attendant in time or directly sending a trip command to a controlled circuit breaker to terminate the development of the events is generally called a relay protection device.
The conventional relay protection device has the following disadvantages in practical use: the heat dissipation effect is poor, the heat dissipation is insufficient, and meanwhile, the heat dissipation mode is too single; in addition, the relay protection device is susceptible to external vibration during use, which may damage internal electrical components, and thus needs to be improved.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a relay protection device, which improves the heat dissipation performance, can absorb shock to the relay protection device, and avoids the damage of internal electric elements caused by external shock.
In order to solve the above technical problem, an embodiment of the present invention provides a relay protection device, including: the shell is a hollow accommodating structure with an opening end arranged on one side; a relay protection device body installed in the housing; and the baffle, baffle detachable connects at the open end of casing, and the baffle is located the front end that relay protection device body has display screen one side, wherein: install heat absorption coil pipe in the space between relay protection device body and casing, heat absorption coil pipe's one end and a water pump are connected, and the other end and an open type cold water storage cistern intercommunication, water pump are through an inlet tube and open type cold water storage cistern intercommunication, wherein: the water pump pumps cold water in the open type cold water tank into the heat absorption coil pipe through the water inlet pipe, the temperature of the cold water in the heat absorption coil pipe after heat absorption is raised, and the cold water flows back into the open type cold water tank to be mixed with original cold water; an air inlet hole is formed in one side of the shell, a heat dissipation fan is installed at the position of the air inlet hole, an air outlet is formed in the other side of the shell, an air outlet cover is installed on the outer side of the air outlet, one end of the air outlet cover is connected with an air outlet pipe, one end, far away from the air outlet cover, of the air outlet pipe extends to the opening position of the top end of the open type cold water tank, one end of the air outlet cover is large in diameter, the other end of the air outlet cover is small in diameter, the end, small in diameter, of the air outlet cover is connected with the air outlet pipe, the heat dissipation fan blows outside cold air into the shell, and heat generated by the relay protection device body is blown into the air outlet cover through the air outlet through air circulation; and a damping mechanism is arranged between the rear end of the relay protection device body and the shell.
Wherein, the heat absorption coil pipe is wound outside the relay protection device body, and the heat absorption coil pipe is a metal copper pipe.
Wherein, the outlet duct is a metal copper pipe.
Wherein, damper includes: supporting legs piece and spring, supporting legs piece block cover is in four corners of relay protection device body rear end, and every supporting legs piece is all fixed through the inner wall of a plurality of springs with the casing.
Wherein, support the leg piece and include: the supporting leg piece is fixed with the inner wall of the shell through three springs.
The protective pad is arranged on the inner side wall of the through hole, and the through hole is clamped and sleeved on the front end face of the relay protection device body through the protective pad; the cross section of the protective pad is of an L-shaped structure.
Wherein, the junction of the inner wall of baffle and the preceding terminal surface of casing is installed the blotter.
Wherein, first pilot plate is installed in the outside of terminal surface before the casing, and screw rod demountable installation is passed through with the tip of baffle to first pilot plate.
Wherein, the outside of casing rear end face is installed the second assembly plate.
The implementation of the relay protection device of the invention has the following beneficial effects: the water pump pumps cold water in the open type cold water tank into the heat absorption coil pipe through the water inlet pipe, the temperature of the cold water in the heat absorption coil pipe after heat absorption is raised, and the cold water flows back into the open type cold water tank to be mixed with original cold water; the heat dissipation fan blows outside cold air into the shell, and the heat generated by the relay protection device body is blown into the air outlet cover through the air outlet by air circulation; a damping mechanism is arranged between the rear end of the relay protection device body and the shell, so that the heat dissipation performance is improved, the relay protection device can be damped, and the damage to internal electrical elements caused by external vibration is avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic top view of a relay protection device according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of an internal structure of a relay protection device according to an embodiment of the present invention.
Fig. 3 is an enlarged schematic structural view of a portion a shown in fig. 2 according to an embodiment of the present invention.
Fig. 4 is an enlarged structural view of a portion b shown in fig. 2 according to an embodiment of the present invention.
FIG. 5 is a top view of a support leg piece according to an embodiment of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 to fig. 5 show a first embodiment of a relay protection device according to the present invention.
An embodiment of the present invention provides a relay protection device, including: the shell 2 is a hollow accommodating structure with an opening end arranged on one side; a relay protection device body 1 mounted in a case 2; and the baffle 3 is detachably connected to the opening end of the shell 2, and the baffle is positioned at the front end of the relay protection device body 1 on one side of the display screen.
Install heat absorption coil pipe 15 in the space between relay protection device body 1 and casing 2, heat absorption coil pipe 15's one end and a water pump 12 are connected, and the other end and an open type cold water tank 13 intercommunication, water pump 12 through an inlet tube 14 and open type cold water tank 13 intercommunication, wherein: the water pump 12 pumps cold water in the open type cold water tank 13 into the heat absorption coil pipe 15 through the water inlet pipe 14, the temperature of the cold water in the heat absorption coil pipe 15 after heat absorption rises, and the cold water flows back into the open type cold water tank 13 to be mixed with original cold water.
An air inlet 11 is arranged on one side of the casing 2, a heat dissipation fan 10 is arranged at the position of the air inlet 11, an air outlet is arranged on the other side of the casing 2, and an air outlet cover 16 is arranged on the outer side of the air outlet, wherein the heat dissipation fan 10 blows external cold air into the casing 2, and heat generated by the relay protection device body 1 is blown into the air outlet cover 16 through the air outlet in the air circulation.
A damping mechanism is arranged between the rear end of the relay protection device body 1 and the shell 2.
In specific implementation, the housing 2 is a cubic hollow containing structure with an open end on one side. First pilot plate 7 is installed in the outside of terminal surface before casing 2, and screw rod 5 is passed through with the tip of baffle 3 to first pilot plate 7 and is realized demountable installation.
Through-hole 4 has been seted up to baffle 3, and 3 covers of baffle and establish in one side that relay protection device body 1 has the display screen, and protection pad 18 is installed to the inside wall of through-hole 4, and protection pad 18 is the rubber material, and through-hole 4 is on relay protection device body 1's preceding terminal surface through 18 clamping sleeves of protection pad, and the cross-section of protection pad 18 is L shape structure.
Preferably, a cushion pad 6 is installed at the joint of the inner wall of the baffle 3 and the front end face of the housing 2. The cushion pad 6 is made of rubber, and can appropriately maintain the exchange between the inside of the case 2 and the outside air while the baffle 3 is damaged by the vibration from the outside and the damper 1.
Preferably, the second assembling plate 8 is installed on the outer side of the rear end surface of the housing 2, and the second assembling plate 8 is provided with an installation hole. The second assembling plate 8 is used for installing the whole device and an installation point, and is favorable for being installed in an electrical box.
Further, one side of the shell 2 is provided with an air inlet 11, the outer side of the air inlet 11 is provided with a protective screen 9, a heat dissipation fan 10 is installed in the protective screen 9, the heat dissipation fan 10 is driven by a motor, the other side of the shell 2 is provided with an air outlet, the outer side of the air outlet is provided with an air outlet cover 16, one end, far away from the shell 2, of the air outlet cover 16 is provided with an air outlet pipe 17, and the air outlet pipe 17 is a metal copper pipe; when the heat dissipation fan 10 rotates, outside cold air is blown into the casing 2, heat generated by the relay protection device body 1 is blown into the air outlet cover 16 through the air outlet, one end of the air outlet cover 16 is large in diameter, the other end of the air outlet cover is small in diameter, and the end of the air outlet cover 16 which is small in diameter is connected with the air outlet pipe 17. The hot air enters through the large-diameter end of the air outlet cover 16 and enters into the air outlet pipe 17 from the small-diameter end, the temperature of the hot air is reduced to a certain degree in the process, and meanwhile, the temperature of the hot air can volatilize outwards through the air outlet pipe 17, so that a part of temperature can be reduced.
Further, a water pump 12 is installed on the outer side of the shell 2, the water pump 12 is connected with an open type cold water tank 13 through a water inlet pipe 14, the open type cold water tank 13 is also located on the outer side of the shell 2, a heat absorption coil 15 is installed on the inner wall of the shell 2, the heat absorption coil 15 is wound on the outer side of the relay protection device body 1, and the heat absorption coil 15 is a metal copper pipe. One end of the heat absorption coil 15 is connected with the water pump 12, and the other end penetrates to the outer side of the shell 2 and is communicated with the open type cold water tank 13.
Preferably, one end of the air outlet pipe 17 far away from the air outlet cover 16 extends to the top end opening position of the open type cold water tank 13.
In specific implementation, the water pump 12 pumps out cold water in the open-type cold water tank 13 by using the water inlet pipe 14 and inputs the cold water into the heat absorption coil 15, the heat absorption coil 15 is wound on the inner side wall of the shell 2, and the heat absorption coil 15 is a metal copper pipe. The heat absorption coil 15 is wound on the periphery of the relay protection device body 1 and used for absorbing heat, the temperature of cold water after absorbing the heat rises to a certain degree, then the cold water flows back into the open type cold water tank 13 to be mixed with original cold water, the open type cold water tank 13 is open type, and therefore the temperature can be naturally reduced, and meanwhile, the air flow generated by the air outlet pipe 17 is also utilized to reduce the temperature to a certain degree.
The operation can effectively reduce the internal temperature of the shell 2, properly reduce the temperature of the air-cooling heat dissipation system and the water-cooling heat dissipation system, prolong the continuous heat dissipation time of the whole heat dissipation system, and have high heat dissipation effect and strong continuity.
Further, the damper mechanism includes: support leg pieces 19 and spring 20, support leg pieces 19 card cover is in four corners of relay protection device body 1 rear end, and every support leg piece 19 is all fixed with the inner wall of casing 2 through a plurality of springs 20.
Preferably, the supporting leg piece 19 includes: a plate-like plate 191 and an L-shaped bar 192, each of the supporting leg pieces 19 is fixed to the inner wall of the housing 2 by three springs 20.
In practice, three springs 20 are respectively installed at the corners of the two ends and the middle part of the supporting leg piece 19, and the other ends are fixed with the inner wall of the casing 2. When there is vibrations in the external world, usable spring 20 realizes the shock attenuation, still cooperates the protection pad 18 of the interior rubber material of through-hole 4 in baffle 3 simultaneously to protect the front side display screen of relay protection device body 1, avoids vibrations to cause the damage to the inside electrical components of relay protection device body 1 and display screen.
The implementation of the relay protection device of the invention has the following beneficial effects:
first, the relay protection device in this embodiment, forced air cooling heat dissipation and water-cooling heat dissipation carry out dual heat dissipation to relay protection device, very high radiating effect, and the radiating air current of forced air cooling can be cooled down to open type cold water tank again when the outside of discharge casing simultaneously to the temperature descends in the cold water tank, improves water-cooling heat dissipation's effect, and both mutually support, make the radiating efficiency obtain promoting by a wide margin.
Second, set up in the casing and be used for supporting and have buffer effect's supporting leg piece and spring, can make relay protection ware can form the space that the air flows in the casing, can form effectual shock attenuation to external vibrations again simultaneously, avoid relay protection ware interior electrical component to damage, but make its safe operation.
Thirdly, the structure is simplified, and the maintenance is convenient.

Claims (9)

1. A relay protection device, comprising:
the shell is a hollow accommodating structure with an opening end arranged on one side;
a relay protection device body installed in the housing; and
the baffle, baffle detachable connects the open end of casing, the baffle is located the relay protection device body has the front end of display screen one side, wherein:
relay protection device body with install heat absorption coil pipe in the space between the casing, heat absorption coil pipe's one end and a water pump are connected, and the other end and an open type cold water storage cistern intercommunication, the water pump through an inlet tube with open type cold water storage cistern intercommunication, wherein: the water pump pumps cold water in the open type cold water tank into the heat absorption coil pipe through a water inlet pipe, the temperature of the cold water in the heat absorption coil pipe after heat absorption is raised, and the cold water flows back into the open type cold water tank to be mixed with original cold water;
an air inlet is formed in one side of the shell, a heat dissipation fan is installed at the position of the air inlet, an air outlet is formed in the other side of the shell, an air outlet cover is installed on the outer side of the air outlet, an air outlet pipe is connected to one end of the air outlet cover, one end, far away from the air outlet cover, of the air outlet pipe extends to the opening position of the top end of the open type cold water tank, the diameter of one end of the air outlet cover is large, the diameter of the other end of the air outlet cover is small, the end, small in diameter, of the air outlet cover is connected with the air outlet pipe, the heat dissipation fan blows outside cold air into the shell, and heat generated by the relay protection device body is blown into the air outlet cover through the air outlet due to air circulation;
and a damping mechanism is arranged between the rear end of the relay protection device body and the shell.
2. The relay protection device according to claim 1, wherein said heat absorbing coil is wound around an outside of said relay protection device body, and said heat absorbing coil is a metal copper pipe.
3. The relay protection device according to claim 1, wherein said outlet tube is a metal copper tube.
4. The relay protection device according to claim 1, wherein the damper mechanism includes: support leg piece and spring, support leg piece card cover is in four corners of relay protection device body rear end, every the support leg piece is all fixed with the inner wall of casing through a plurality of springs.
5. The relay protection device according to claim 4, wherein said support leg pieces include: the supporting leg piece is fixed with the inner wall of the shell through three springs.
6. The relay protection device according to claim 1, wherein the baffle has a through hole, a protection pad is mounted on an inner side wall of the through hole, and the through hole is fitted on a front end surface of the relay protection device body through the protection pad;
the cross section of the protection pad is of an L-shaped structure.
7. The relay protection device according to claim 6, wherein a cushion is installed at a junction of an inner wall of the baffle and a front end surface of the housing.
8. The relay protection device according to claim 1, wherein a first fitting plate is attached to an outer side of a front end surface of the housing, and the first fitting plate is detachably attached to an end portion of the baffle by a screw.
9. The relay protection device according to claim 1, wherein a second fitting plate is attached to an outer side of a rear end surface of said housing.
CN202011327349.8A 2020-11-24 2020-11-24 Relay protection device Active CN112421451B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011327349.8A CN112421451B (en) 2020-11-24 2020-11-24 Relay protection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011327349.8A CN112421451B (en) 2020-11-24 2020-11-24 Relay protection device

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Publication Number Publication Date
CN112421451A CN112421451A (en) 2021-02-26
CN112421451B true CN112421451B (en) 2022-06-24

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Application Number Title Priority Date Filing Date
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Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017140369A1 (en) * 2016-02-18 2017-08-24 Abb Schweiz Ag Dual-pipe system for cooling high-voltage systems
CN208723392U (en) * 2018-08-02 2019-04-09 绍兴市上虞区虞风计算机网络工程有限公司 A kind of multifunction power equipment box
CN209904734U (en) * 2019-01-16 2020-01-07 昆山泽元信息科技有限公司 Heat dissipation device for automobile chassis pneumatic external member
CN209516359U (en) * 2019-03-04 2019-10-18 徐州工业职业技术学院 A kind of novel electric and electronic power cabinet
CN209860406U (en) * 2019-06-17 2019-12-27 沈剑 Electric automatization switch board with heat dissipation dehumidification effect

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