CN206049702U - A kind of braking resistor exhaust ventilation radiating and rain insensitive device - Google Patents
A kind of braking resistor exhaust ventilation radiating and rain insensitive device Download PDFInfo
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- CN206049702U CN206049702U CN201621006685.1U CN201621006685U CN206049702U CN 206049702 U CN206049702 U CN 206049702U CN 201621006685 U CN201621006685 U CN 201621006685U CN 206049702 U CN206049702 U CN 206049702U
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- braking resistor
- runner
- exhaust ventilation
- insensitive device
- motor
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Abstract
This utility model is related to a kind of braking resistor exhaust ventilation radiating and rain insensitive device, it is characterized in that：It at least includes the runner being made up of housing（3）And runner（3）Interior braking resistor（2）, runner（3）Middle fan unit（4）；The runner that housing is constituted（3）Symmetrical structure, symmetrical runner（3）Two ends are low, middle height, from two ends to middle sideling transition upwards, two ends runner（3）Braking resistor is fixed with respectively（2）, symmetrical runner（3）The longitudinally fixed fan unit in middle part（4）.This braking resistor exhaust ventilation radiating and rain insensitive device, heat dissipation problem of the side-suction type braking resistor blower motor in the case of radiating flow passage is plunderred outward can be solved, and can guarantee that rainwater is smoothly discharged outside braking resistor, without entering into inside blower motor.
Description
Technical field
This utility model is related to rail transit locomotive braking resistor, it is adaptable to side air intake, the side of top air-out form
Suction braking resistor, is especially to provide a kind of braking resistor exhaust ventilation radiating and rain insensitive device.
Background technology
Forced-air braking resistor is generally divided into three kinds of versions such as vertical, horizontal and side-suction type at present.It is vertical
Formula structure need to be taken from locomotive underframe to locomotive headroom, cannot be installed by limited time in intra-locomotive arrangement space.Horizontal knot
Structure adopts side air intake, another side air-out, and during work, high-pressure hot wind is directly arranged to outside corridor, threatens staff on outside corridor
Personal safety.
Side-suction type structure cold air is sucked from locomotive both sides, High Temperature High Pressure air is discharged from top, is effectively saved locomotive
The space of underframe to roof in electric panel room, and prevent High Temperature High Pressure air side to arrange the potential threat brought.But this structure by
It is placed in the middle part of product in blower motor, loses the outer radiating flow passage for plunderring motor surface, while blower fan is placed in rain, snow environment also
In.
The content of the invention
The purpose of this utility model is to provide a kind of braking resistor exhaust ventilation radiating and rain insensitive device, to solve side
Heat dissipation problem of the suction braking resistor blower motor in the case of radiating flow passage is plunderred outward, and can guarantee that rainwater is smooth
Discharge outside braking resistor, without entering into inside blower motor.
The technical solution of the utility model is：A kind of braking resistor exhaust ventilation radiating and rain insensitive device, is characterized in that：It
At least include the braking resistor in the runner and runner that are made up of housing, the fan unit in the middle of runner；The runner that housing is constituted
Symmetrical structure, symmetrical runner two ends are low, middle height, from two ends to middle sideling transition upwards, two ends runner
Braking resistor is fixed with respectively, longitudinally fixed fan unit in the middle part of symmetrical runner；Fan unit includes：Motor isolates machine
Structure, air outlet protection network, fan blade, rainhat, blower motor；At the top of blower fan be air outlet protection network, blower motor with
Motor interrupter is provided between framework.
Described blower motor bottom motors internal heat dissipating feeder connection and top motor internal heat dissipation channel exit have
Louvre.
Described is provided with rainhat at the top of blower motor.
The side of described rainhat is 10 °～40 ° inclined-planes, and top has vertical rain-proof flange to stretch in fan blade wheel hub
Portion, and 5mm～30mm gaps are kept with wheel hub.
The external diameter of rainhat 30mm～50mm bigger than hub diameter.
Hub top arranges kuppe.
The utility model has the advantages that：Exhaust ventilation blower fan is adopted in side-suction type braking resistor, so as to realize
In the case of the not outer radiating flow passage for plunderring blower motor surface, by the heat dissipation channel of motor internal, by exhaust ventilation side
Formula, solves the problems, such as motor radiating；Increase rain-proof cap at motor-shaft extending end, it is ensured that cooling air-flow can be dissipated from inside blower motor
The passage of heat is smoothly discharged to top outlet inlet, and the rainwater of air outlet will not be entered inside blower motor.
Description of the drawings
Fig. 1 is this utility model embodiment braking resistor car body scheme of installation；
Fig. 2 is the ventilation of this utility model embodiment braking resistor blower negative pressure and rain-proof principle schematic.
In figure, 1, air inlet；2nd, braking resistor；3rd, runner；4th, fan unit；5th, framework；6th, motor interrupter；7th, go out
Air port protection network；8th, fan blade；9th, rainhat；10th, heat dissipation channel outlet；11st, louvre；12nd, blower motor.
Specific embodiment
As shown in Figure 1 and Figure 2, this utility model is related to a kind of braking resistor exhaust ventilation radiating and rain insensitive device, and it is at least
Including the braking resistor 2 in the runner 3 and runner 3 being made up of housing, the fan unit 4 in the middle of runner 3；The runner that housing is constituted
3 symmetrical structures, 3 two ends of symmetrical runner are low, middle height, from two ends to middle sideling transition upwards, two ends stream
Road 3 is respectively fixed with braking resistor 2, longitudinally fixed fan unit 4 in the middle part of symmetrical runner 3；Fan unit 4 includes：Blower fan
Motor 12, framework 5, air port protection network 7, motor interrupter 6；It is air outlet protection network 7 at the top of blower fan, during blower fan work,
Two ends runner 3 produces negative pressure, forms both-end side-suction type air draft structure, makes braking resistor 2 lower the temperature, that is, blower fan is by Cryogenic air
From 3 low side air inlet of runner, 1 suction, braking resistor 2 is made in 3 internal cooling of runner, and be blown into upwardly through air outlet protection network 7
In air, so as to cause runner inner air pressure less than atmospheric pressure, in the air inlet 1 and blower motor 12 of 3 both sides of runner
At the louvre 11 of bottom, outside air under atmospheric pressure, automatically in runner 3, so as to form orientation, stable gas
Stream band.
The cold air entered from the air inlet 1 of 2 both sides of braking resistor becomes hot-air after the heating of braking resistor 2,
Motor interrupter 6 is provided between blower motor 12 and framework 5, motor interrupter 6 is avoided that blower motor 12 is subject to heat
The impact of air.
Export and have at 10 in 12 bottom motors internal heat dissipating feeder connection of blower motor and top motor internal heat dissipation channel
Louvre 11, when producing negative pressuren zone with runner of the guarantee inside braking resistor under declared working condition, air pressure energy will be cooled down
Air is sent by motor internal passage, meets motor radiating requirement.
Rainhat 9 is provided with the top of blower motor 12,9 side of rainhat is 10 °～40 ° inclined-planes, and top has vertical anti-
Rain flange stretches into 8 hub interior of fan blade, and keeps 5mm～30mm gaps with wheel hub, and 9 external diameter of rainhat is bigger than hub diameter
30mm～50mm, while arranging kuppe, so as to ensure under braking resistor declared working condition, blower motor in hub top
12 can meet cooling requirements by exhaust ventilation mode, can guarantee that rainwater can be along wheel hub, rainhat under rain, snow operating mode again
9 discharge, and unlikely entrance motor internal causes damage to motor.
Under blower fan declared working condition, at 3 pipe network outlet of product runner, air pressure is P1, normal atmosphere is P0, produce draught head
For Δ P=P0-P1, the now total MAF Q of pipe networkm∝ Δ P, total MAF is by the sky for flowing through braking resistor 2
Gas mass flow qm1With flow through the MAF q inside blower motor 12m2Composition, i.e. Qm=qm1+qm2, it is identical in pressure reduction
When, qm1·ξ1=qm2·ξ2,ξ1、ξ2The on-way resistance for respectively flowing through resistance unit and flowing through 12 internal gas flow of blower motor is damaged
Lose, size and pipe network length, pipe network sectional area, tube wall degree of roughness, fluid activity state and viscosity of friction loss etc.
Factor is relevant.
When power that the air of motor internal absorbed is flowed through when thermal balance is reached more than the motor feels hot power, just can lead to
Cross exhaust ventilation mode and meet motor radiating demand, i.e.,：cpqm1Δ t >=QK, c in formulapFor air specific heat capacity, Δ t is blower fan
12 temperature limit of motor, K are the motor feels hot safety coefficient.
The schematic specific embodiment of this utility model is the foregoing is only, the scope of the present invention is not limited to.
Any those skilled in the art, on the premise of the design without departing from the present invention and principle the equivalent variations made with repair
Change, and be applied in NM field of the invention, the scope of this utility model protection all should be belonged to.
Claims (6)
1. a kind of braking resistor exhaust ventilation radiating and rain insensitive device, is characterized in that：It at least includes the runner being made up of housing
（3）And runner（3）Interior braking resistor（2）, runner（3）Middle fan unit（4）；The runner that housing is constituted（3）In left and right
Symmetrical structure, symmetrical runner（3）Two ends are low, middle height, from two ends to middle sideling transition upwards, two ends runner（3）
Braking resistor is fixed with respectively（2）, symmetrical runner（3）The longitudinally fixed fan unit in middle part（4）；Fan unit（4）Including：
Motor interrupter（6）, air outlet protection network（7）, fan blade（8）, rainhat（9）, blower motor（12）；At the top of blower fan it is
Air outlet protection network（7）, in blower motor（12）With framework（5）Between be provided with motor interrupter（6）.
2. a kind of braking resistor exhaust ventilation radiating according to claim 1 and rain insensitive device, is characterized in that：Blower motor
（12）Bottom motors internal heat dissipating feeder connection and top motor internal heat dissipation channel outlet（10）There is louvre at place（11）.
3. a kind of braking resistor exhaust ventilation radiating according to claim 1 and rain insensitive device, is characterized in that：In blower fan electricity
Machine（12）Top is provided with rainhat（9）.
4. a kind of braking resistor exhaust ventilation radiating according to claim 3 and rain insensitive device, is characterized in that：Rainhat
（9）Side be 10 °～40 ° inclined-planes, top has vertical rain-proof flange to stretch into fan blade（8）Hub interior, and protect with wheel hub
Hold 5mm～30mm gaps.
5. a kind of braking resistor exhaust ventilation radiating according to claim 3 and rain insensitive device, is characterized in that：Rainhat
（9）External diameter 30mm～50mm bigger than hub diameter.
6. a kind of braking resistor exhaust ventilation radiating according to claim 5 and rain insensitive device, is characterized in that：Hub top
Kuppe is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621006685.1U CN206049702U (en) | 2016-08-30 | 2016-08-30 | A kind of braking resistor exhaust ventilation radiating and rain insensitive device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621006685.1U CN206049702U (en) | 2016-08-30 | 2016-08-30 | A kind of braking resistor exhaust ventilation radiating and rain insensitive device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206049702U true CN206049702U (en) | 2017-03-29 |
Family
ID=58379332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621006685.1U Active CN206049702U (en) | 2016-08-30 | 2016-08-30 | A kind of braking resistor exhaust ventilation radiating and rain insensitive device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206049702U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110583493A (en) * | 2019-10-25 | 2019-12-20 | 东北农业大学 | Pig house ventilation unit |
-
2016
- 2016-08-30 CN CN201621006685.1U patent/CN206049702U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110583493A (en) * | 2019-10-25 | 2019-12-20 | 东北农业大学 | Pig house ventilation unit |
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