CN217823912U

CN217823912U - Relay protection device

Info

Publication number: CN217823912U
Application number: CN202222022456.0U
Authority: CN
Inventors: 姚嘉伟
Original assignee: Wiscom System Co ltd
Current assignee: Wiscom System Co ltd
Priority date: 2022-08-02
Filing date: 2022-08-02
Publication date: 2022-11-15
Anticipated expiration: 2032-08-02

Abstract

The utility model discloses a relay protection device relates to relay protection technical field. The utility model discloses a: the back of the box body is provided with a cooling fan, and two sides of the box body are provided with ventilation fences; the square water tank is fixedly arranged in the middle of the interior of the tank body, cooling liquid is filled in the square water tank, and the top of the square water tank is communicated with a water injection pipe penetrating through the top wall of the tank body; the installation pipe, the relay protection device body, the installation pipe symmetry sets up in the middle of the shape water tank of returning. The utility model discloses a set up the relay protection device body at the middle part of returning the shape water tank, when the power consumption is in a busy season, the relay protection device body is in high load operation, can be by main water injection pipe to the interior coolant liquid that injects of returning the shape water tank, and the heat that relay protection device body work produced is absorbed by the coolant liquid in returning the shape water tank in the conduction of heat-conducting piece enters into returning the shape water tank to reach better radiating effect, the practicality is higher.

Description

Relay protection device

Technical Field

The utility model relates to a relay protection equipment technical field, concretely relates to relay protection device.

Background

With the rapid development of economy, more and more cities select urban rail transit as a public transport means, and as the rail transit is more economical by adopting low-voltage direct current power supply, domestic rail transit mostly adopts 1500V or 750V system direct current to supply power to locomotives. The direct current traction power supply voltage is low, and the short-circuit current has great harm to equipment when short circuit occurs; the current of a feeder line of a traction substation can be greatly changed along with different running conditions of locomotive acceleration, braking and the like; in addition, the short-circuit current is greatly different according to the distance from the short-circuit point to the traction substation. Therefore, the relay protection device is a very important protection device, and the direct current traction relay protection device is an important protection device of a direct current traction power supply system.

The structure of the interior of the relay protection device is complex, a large amount of heat can be generated in the working process of the relay protection device, the relay protection device can be used for radiating heat by virtue of an internal fan in a power consumption off season, but in a power consumption busy season, the relay protection device is in overload operation, under the state, a large amount of heat of the relay protection device is gathered in a box body, and if the heat is not timely exhausted, the service life of internal electrical elements of the relay protection device can be influenced, so that the relay protection device with high radiating efficiency is provided to solve the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an: for solving the poor problem of radiating effect among the prior art, the utility model provides a relay protection device.

The utility model discloses a realize above-mentioned purpose and specifically adopt following technical scheme:

a relay protection device comprising:

the back of the box body is provided with a cooling fan, and two sides of the box body are provided with ventilation fences;

the square-shaped water tank is fixedly arranged in the middle of the inside of the tank body, cooling liquid is filled in the square-shaped water tank, and the top of the square-shaped water tank is communicated with a water injection pipe penetrating through the top wall of the tank body;

the installation pipe is symmetrically arranged in the middle of the square-shaped water tank, two ends of the installation pipe are communicated with the square-shaped water tank, two end openings of the installation pipe are fixedly provided with a cross, the cross is connected with a spring towards the interior of the installation pipe, one end, far away from the cross, of the spring is fixedly provided with a rubber plunger, the rubber plunger is connected with the inner wall of the installation pipe in a sliding mode, one side of the middle of the installation pipe is provided with a strip-shaped hole, the middle of the rubber plunger is connected with an L-shaped plate through the strip-shaped hole by virtue of a connecting rod, one end, far away from the rubber plunger, of the connecting rod penetrates through the strip-shaped hole, and the relay protection device body is placed between the two L-shaped plates;

the heat conducting piece is used for conducting heat and comprises heat conducting plates fixedly arranged on the upper inner side wall and the lower inner side wall of the square-shaped water tank, one side of each heat conducting plate is connected with the shell of the relay protection device body in a sliding mode, and heat radiating fins are uniformly distributed on one side, away from the relay protection device body, of each heat conducting plate and are located inside the square-shaped water tank;

and the limiting mechanisms are arranged on two sides of the square-shaped water tank and used for preventing the relay protection device body from being separated from the L-shaped plate.

Furthermore, the top of the water injection pipe is in threaded connection with a pipe cover, and the side wall of the water injection pipe is communicated with a vent pipe.

Furthermore, the two sides of the square-shaped water tank are connected with dust screens through supports, and the dust screens are attached to the ventilation fences.

Furthermore, the limiting mechanism comprises U-shaped seats fixedly arranged on two sides of the rectangular water tank, a limiting plate is rotatably connected inside one of the U-shaped seats, a screw is connected to the free end of the limiting plate in a threaded manner, and a knob is fixedly arranged at one end, far away from the limiting plate, of the screw.

Further, the heat conducting plate is an aluminum plate, and the radiating fins are copper sheets.

Furthermore, a box door is hinged to one side of the front face of the box body through a hinge, and an observation window is arranged in the position, corresponding to the relay protection device body, of the box door.

The utility model has the advantages as follows:

1. the utility model discloses a set up the relay protection device body at the middle part of returning the shape water tank, when the power consumption is in a busy season, the relay protection device body is in high load operation, can be by main water injection pipe to the interior coolant liquid that injects of returning the shape water tank, and the heat that relay protection device body work produced is absorbed by the coolant liquid in returning the shape water tank in the conduction of heat-conducting piece enters into returning the shape water tank to reach better radiating effect, the practicality is higher.

2. The utility model discloses during the use, place the relay protection device body between the L template, the elasticity that utilizes the spring carries out the centre gripping to it fixed, set up stop gear simultaneously and avoid it to break away from the L template, make things convenient for the staff to install and dismantle it, in addition receive the striking when the box, perhaps when this internal motor work of relay protection device produces vibrations, the spring can be through the deformation of self, save the energy of vibrations, spring release energy in-process, make the rubber stopper remove in the inside of installation pipe, promote the coolant liquid and remove, friction between coolant liquid and installation pipe wall and the internal friction between the coolant liquid molecule form damping force to vibrations, make the potential energy of spring turn into cooling heat energy, thereby play the cushioning effect of similar bumper shock absorber, play better guard action to the relay protection device body, the life of relay protection device body is prolonged greatly, be worth general application and popularization.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a schematic view of another three-dimensional structure of the present invention;

FIG. 3 is a schematic view of the internal structure of the present invention;

FIG. 4 is a schematic view of the structure of the clip-shaped water tank of the present invention;

FIG. 5 is a schematic view of the mounting tube structure of the present invention;

fig. 6 is a schematic view of the heat conducting member of the present invention.

Reference numerals: 1. a box body; 101. a ventilation fence; 102. a box door; 2. a heat-dissipating fan; 3. a clip-shaped water tank; 4. a water injection pipe; 401. a gas permeable pipe; 5. installing a pipe; 501. a cross; 502. a strip-shaped hole; 6. a relay protection device body; 7. a spring; 8. a rubber plunger; 9. a connecting rod; 10. an L-shaped plate; 11. a heat conductive member; 1101. a heat conducting plate; 1102. a heat dissipating fin; 12. a limiting mechanism; 1201. a U-shaped seat; 1202. a limiting plate; 1203. a screw; 1204. a knob; 13. a dust screen.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention.

As shown in fig. 1 to 6, a relay protection device includes:

the back of the box body 1 is provided with a cooling fan 2, and two sides of the box body 1 are provided with ventilation fences 101;

the square water tank 3 is fixedly arranged in the middle of the interior of the tank body 1, cooling liquid is filled in the square water tank 3, and the top of the square water tank 3 is communicated with a water injection pipe 4 penetrating through the top wall of the tank body 1;

the installation pipe 5 and the relay protection device body 6 are arranged in the middle of the clip-shaped water tank 3, the two ends of the installation pipe 5 are communicated with the clip-shaped water tank 3, two ports of the installation pipe 5 are fixedly provided with a cross 501, the cross 501 is connected with a spring 7 towards the inside of the installation pipe 5, one end, far away from the cross 501, of the spring 7 is fixedly provided with a rubber plunger 8, the rubber plunger 8 is connected with the inner wall of the installation pipe 5 in a sliding manner, one side of the middle of the installation pipe 5 is provided with a strip-shaped hole 502, the middle of the rubber plunger 8 is provided with a connecting rod 9, one end, far away from the rubber plunger 8, of the connecting rod 9 penetrates through the strip-shaped hole 502 to be connected with the L-shaped plate 10, and the relay protection device body 6 is placed between the two L-shaped plates 10;

the heat conducting piece 11 is used for conducting heat and comprises a heat conducting plate 1101 fixedly arranged on the upper inner side wall and the lower inner side wall of the square-shaped water tank 3, one side of the heat conducting plate 1101 is connected with the shell of the relay protection device body 6 in a sliding mode, heat radiating fins 1102 are uniformly distributed on one side, away from the relay protection device body 6, of the heat conducting plate 1101, and the heat radiating fins 1102 are located inside the square-shaped water tank 3;

and the limiting mechanisms 12 are arranged on two sides of the square-shaped water tank 3 and are used for preventing the relay protection device body 6 from being separated from the L-shaped plate 10.

This relay protection device, through setting up relay protection device body 6 at the middle part of time shape water tank 3, when the power consumption is busy season, relay protection device body 6 is in high load operation, can be by main water injection pipe 4 to annotate the coolant liquid in time shape water tank 3, the heat that relay protection device body 6 work produced enters into time shape water tank 3 through the conduction of heat-conducting piece 11, absorbed by the coolant liquid in time shape water tank 3, thereby reach better radiating effect, in addition the device is when using, place relay protection device body 6 between L template 10, utilize spring 7's elasticity to carry out the centre gripping fixed to it, set up stop gear 12 simultaneously and avoid it to break away from L template 10, make things convenient for the staff to install and dismantle it, in addition receive the striking when box 1, or when the motor work in relay protection device body 6 produced vibrations, spring 7 can be through self deformation, the energy of vibrations is saved, spring 7 release energy in-process, make the inside removal of rubber sliding plug at installation pipe 5, promote the coolant liquid to move, the coolant liquid plays the friction protection device body and the heat energy of shock attenuation molecule in the installation pipe 5 and the shock attenuation protection device body, thereby make the relay protection device body form the heat energy of shock attenuation between the damping protection device greatly, thereby the heat energy of shock absorber 6 is good effect of shock absorber protection device, thereby the shock absorber 6.

It should be noted that the relay protection device body 6 in the device is mainly applied to a direct current traction power supply station, the rubber plunger 8 has a certain length, and meanwhile, before the device is used, the air tightness of the device needs to be checked.

As shown in fig. 4, in some embodiments, a cap is screwed on the top of the water injection pipe 4, and the side wall of the water injection pipe 4 is connected to a vent pipe 401, and more specifically, the vent pipe 401 is configured to perform ventilation and heat dissipation functions, and further, to release air pressure, so that the rubber plunger 8 can slide along the mounting pipe 5.

As shown in fig. 1, in some embodiments, two sides of the rectangular water tank 3 are connected with dust screens 13 through brackets, the dust screens 13 are attached to the ventilation fence 101, and more specifically, the dust screens 13 are arranged to effectively prevent dust from entering the inside of the tank body 1.

As shown in fig. 4, in some embodiments, the limiting mechanism 12 includes U-shaped seats 1201 fixed on two sides of the rectangular water tank 3, one of the U-shaped seats 1201 is rotatably connected with a limiting plate 1202, a screw 1203 is screwed to a free end of the limiting plate 1202, and a knob 1204 is fixed at an end of the screw 1203 far away from the limiting plate 1202, more specifically, the working principle and the process of the limiting mechanism 12 are that after the relay protection device body 6 is placed between the L-shaped plates 10, the limiting plate 1202 is rotated so that the other end of the limiting plate 1202 is clamped in the U-shaped seat 1201 on the other side, and then the knob 1204 is abutted against the U-shaped seat 1201 by rotating the screw 1203, so that the limiting plate can be fixed, and at this time, the relay protection device body 6 is clamped between the L-shaped plates 10 and the limiting plate 1202.

As shown in fig. 6, in some embodiments, the heat conducting plate 1101 is an aluminum plate, and the heat dissipating fins 1102 are copper plates, and more specifically, the aluminum plate and the copper plates have good heat conducting ability, so that heat in the relay protection device body 6 can be conducted into the rectangular-shaped water tank 3, and then absorbed by the cooling liquid in the rectangular-shaped water tank 3, thereby achieving a good heat dissipating effect.

As shown in fig. 1, in some embodiments, a box door 102 is hinged to one side of the front surface of the box body 1 through a hinge, and an observation window is disposed at a position of the box door 102 corresponding to the relay protection device body 6, more specifically, the observation window is disposed so that a worker can know the working condition of the relay protection device body 6 without opening the box door 102, and convenience is provided for the worker to patrol.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A relay protection device, comprising:

the box body (1), a heat radiation fan (2) is installed on the back of the box body (1), and ventilation fences (101) are formed on two sides of the box body (1);

the water tank (3) is fixedly arranged in the middle of the inner part of the tank body (1), cooling liquid is filled in the water tank (3), and the top of the water tank (3) is communicated with a water injection pipe (4) penetrating through the top wall of the tank body (1);

the installation pipe (5) and the relay protection device body (6) are symmetrically arranged in the middle of the square water tank (3), the two ends of the installation pipe (5) are communicated with the square water tank (3), a cross (501) is fixedly arranged at the two ports of the installation pipe (5), a spring (7) is connected to the inside of the installation pipe (5) through the cross (501), a rubber plunger (8) is fixedly arranged at one end, far away from the cross (501), of the spring (7), the rubber plunger (8) is connected with the inner wall of the installation pipe (5) in a sliding mode, a strip-shaped hole (502) is formed in one side of the middle of the installation pipe (5), a connecting rod (9) is arranged in the middle of the rubber plunger (8), one end, far away from the rubber plunger (8), of the connecting rod (9) penetrates through the strip-shaped hole (502) to be connected with an L-shaped plate (10), and the relay protection device body (6) is placed between the two L-shaped plates (10);

the heat conducting piece (11) is used for conducting heat and comprises heat conducting plates (1101) fixedly arranged on the upper inner side wall and the lower inner side wall of the square-shaped water tank (3), one side of each heat conducting plate (1101) is connected with a shell of the relay protection device body (6) in a sliding mode, heat radiating fins (1102) are uniformly distributed on one side, away from the relay protection device body (6), of each heat conducting plate (1101), and the heat radiating fins (1102) are located inside the square-shaped water tank (3);

and the limiting mechanisms (12) are arranged on two sides of the square-shaped water tank (3) and used for preventing the relay protection device body (6) from being separated from the L-shaped plate (10).

2. Relay protection device according to claim 1, wherein a cap is screwed on the top of the water injection pipe (4), and the side wall of the water injection pipe (4) is connected to a vent pipe (401).

3. The relay protection device according to claim 1, wherein both sides of said rectangular water tank (3) are connected with a dust screen (13) through a bracket, and said dust screen (13) is attached to said ventilation fence (101).

4. The relay protection device according to claim 1, wherein the limiting mechanism (12) comprises U-shaped seats (1201) fixedly arranged on two sides of the rectangular water tank (3), one of the U-shaped seats (1201) is internally and rotatably connected with a limiting plate (1202), a screw (1203) is in threaded connection with a free end of the limiting plate (1202), and a knob (1204) is fixedly arranged at one end, far away from the limiting plate (1202), of the screw (1203).

5. The relay protection device according to claim 1, wherein said heat conducting plate (1101) is an aluminum plate, and said heat dissipating fins (1102) are copper plates.

6. The relay protection device according to claim 1, wherein a box door (102) is hinged to one side of the front surface of the box body (1) through a hinge, and an observation window is arranged at a position of the box door (102) corresponding to the relay protection device body (6).