KR100744853B1 - Tranin heating/cooling system and electric heater for preventing vibration - Google Patents

Abstract

A train cooling and heating system for preventing vibration and an electric heater of the same is provided to protect the electric heater from the vibration of the train by fixing the electric heater to upper and lower portions of a cooler frame with the electric heater being separated from an evaporator coil. A train cooling and heating system for preventing vibration includes a cooler frame(100), an evaporator fan(200), an evaporator coil(300), and an electric heater(400). The evaporator fan is provided on one side of the cooler frame. The evaporator coil is installed on the other side of the cooler frame. The electric heater is separated from the evaporator coil and is disposed at the opposite position to the evaporator coil. The electric heater is fixed to the cooler frame by a fixing unit. The electric heater includes an electric heater frame, a heat radiation body, a plurality of heat radiation fins, and a pair of heater support channels. Both ends of the heat radiation body are fixed to both sides of the electric heater frame respectively. The heat radiation fins are formed on the outer surface of the heat radiation body. Both ends of the heater support channel are fixed to upper and lower portions of the electric heater frame. The heat radiation fins are interposed between the heater support channels so that the heater support channels can make contact with the heat radiation fins.

Description

Railway vehicle air conditioner and electric heater for preventing vibration {TRANIN HEATING / COOLING SYSTEM AND ELECTRIC HEATER FOR PREVENTING VIBRATION}

1 is a block diagram showing a railway vehicle air conditioning system according to the prior art.

Figure 2a is a front view showing the electric heater provided in the railway vehicle air conditioning apparatus according to the prior art.

FIG. 2B is a cross-sectional view of the portion “A-A” of FIG. 2A;

Figure 3 is a block diagram showing a railway vehicle air conditioning system according to the present invention.

4 is a cross-sectional view of the portion "B-B" of FIG.

Figure 5a is a side view showing a rail vehicle electric heater according to the present invention.

Figure 5b is a front view showing the rail vehicle electric heater according to the present invention.

FIG. 6A is an enlarged configuration diagram showing an enlarged portion “C” of FIG. 5A. FIG.

6B is an enlarged block diagram showing an enlarged portion “D” of FIG. 5B.

7 is an enlarged configuration diagram showing a modification of the dustproof fastening means shown in FIG. 6B.

<Code Description of Main Parts of Drawing>

100: air conditioner frame 110: multi-stage bending portion

200: evaporator fan 300: evaporator coil

400: electric heater 410: electric heater skeleton

420: heating element 430: heat radiation fin

440: dustproof fastening means 450: heater support channel

460: guide

The present invention relates to a railway vehicle air-conditioning apparatus and an electric heater provided therein, wherein upper and lower parts of an electric heater are fixed to an air conditioner frame, and a heating element of the electric heater is fixed to an electric heater heater frame through a dustproof fastening means, thereby causing vibration of the railroad vehicle. The present invention relates to a railway vehicle air conditioning and heating apparatus for minimizing resonance of an electric heater according to the present invention.

In general, railroad cars are equipped with air conditioners and heaters for cooling and heating the cabin. The air conditioner is mainly installed on the external air flow path formed on the upper surface of the cabin to cool the cabin, the heater allows the warm air to flow into the cabin. The air conditioner and the heater are also integrally installed on the flow path into which the outside air of the railroad car flows, with reference to the accompanying drawings will be described with respect to the conventional railway vehicle air-conditioning unit is installed integrally with the air conditioner and heater.

1 shows a configuration of a conventional railway vehicle air conditioning apparatus.

As shown in FIG. 1, a conventional railway vehicle air conditioner includes an air conditioner frame 10, an evaporator coil 20 spaced apart from each other at both sides of the air conditioner frame 10, and the evaporator coil 20. An electric heater 30 integrally fixed to an upper portion of the evaporator fan 50 is installed and driven by a driving motor 40 provided inside the air conditioner frame 10.

However, such a railroad car heating and cooling device is fixed only by the upper part of the electric heater 30 to the evaporator coil 20 by a plurality of bolts and nuts coupling, when the railroad car moves only the electric heater 30 is fixed to the top Severe trembling is generated in the lower portion, such a vibration causes a damage of the electric heater 30 has a problem of lowering the durability of the product.

Hereinafter, with reference to the drawings will be described with respect to the electric heater provided in the conventional railway vehicle air conditioning apparatus.

Figure 2a is a view showing the electric heater provided in the railroad car heating and cooling apparatus according to the prior art, Figure 2b is a view showing a cut portion "A-A" of Figure 2a.

As shown in FIGS. 2A and 2B, the electric heater 30 installed in a conventional railway vehicle has a heating element 32 that emits heat and is fixed by the electric heater frame 31. Heat is generated). That is, a plurality of heating elements 32 having a '⊂' shape are arranged in the electric heater frame 31 with a predetermined height difference, and each of the heating elements 32 is connected to the electric heater frame 31 by the support hook 33. It is fixed. At this time, the support hook 33 is coupled to the electric heater frame 31 with the bolts and nuts with the heating element 32 therebetween, and an insulator for insulation between the heating element 32 and the electric heater frame 31. 34).

However, in the conventional railway vehicle electric heater having such a configuration, as the capacity increases, the length of the heating element also extends together. When the vibration occurs in the railway vehicle, there is a problem that vibration occurs in the center of the heating element 32 of the long axis. In addition, the heating element 32 is fixed by tightening a bolt to the electric heater frame, in this process the support hook 33 for fixing the heating element 32 may be damaged, the insulator 34 may also be damaged, which may cause a short circuit There was a growing problem.

An object of the present invention is to solve the above-mentioned problems of the prior art, to provide a railway vehicle air-conditioning apparatus and an electric heater provided therein for protecting the electric heater from vibration generated in the railway vehicle.

In addition, the present invention is to provide a railway vehicle air-conditioning apparatus and an electric heater provided therein for reducing the vibration that increases with the increase in capacity and size of the electric heater.

In order to achieve the above object, a railway vehicle air conditioner according to the present invention includes an air conditioner frame, an evaporator fan provided on one side of the air conditioner frame, an evaporator coil installed on the other side of the air conditioner frame, and an opposite position of the evaporator coil. A plurality of fasteners disposed on the edge and formed at the edge thereof are configured to include an electric heater fixed to the air conditioner frame through fixing means.

At this time, it is preferable that the air conditioner frame has a multi-stage bending portion having a shape corresponding to the lower portion of the electric heater such that the electric heater is tightly fixed to the lower side.

In addition, the electric heater is an electric heater frame, a heating element which is formed at both ends extending in the horizontal direction, respectively fixed to one side and the other side of the electric heater frame, a plurality of heat radiation fins formed on the outer circumferential surface of the heating element, both ends are dust-tightening means It is fixed to the upper and lower portions of the electric heater frame through, it may be configured to include a pair of heater support channels disposed facing each other between the radiating fins to contact and fix the radiating fins.

At this time, the anti-vibration fastening means includes a fastening bolt and nut for fastening two adjacent members to each other, an anti-vibration rubber installed between the fastening bolt and the nut, and compression between the two members fastened to the fastening bolt and the nut. It includes a restricting sleeve, it is preferred that a plurality of washers are interposed between the fastening bolt and the nut is fastened.

The railroad vehicle electric heater according to the present invention includes an electric heater frame, a heating element fixed to one side and the other side of the electric heater frame, both ends extending in a horizontal direction, and a plurality of heat radiation fins formed on an outer circumferential surface of the heating element, Both ends are fixed to the upper and lower portions of the electric heater frame through the dust-proof fastening means, and includes a pair of heater support channels disposed to face each other with the heat dissipation fins interposed therebetween to contact and fix the heat dissipation fins.

An embodiment of the present invention will be described in detail with reference to the accompanying drawings.

3 is a view showing the configuration of a railway vehicle air conditioning apparatus according to the present invention, Figure 4 is a view showing a cross-section cut section "B-B" of FIG.

As shown in Figure 3 and 4, the railway vehicle air-conditioning apparatus according to the present invention is provided with an evaporator coil 300 on one side of the air conditioner frame 100, the electric heater in a position opposite to the evaporator coil (300) 400 is fixed to the air conditioner frame 100, the other side of the air conditioner frame 100 is an evaporator for introducing air cooled and heated from the evaporator coil 300 or the electric heater 400 into the passenger compartment of the railway vehicle The fan 200 is installed.

Specifically, the air conditioner frame 100 is for supporting components such as an evaporator coil 300, an evaporator fan 200, an evaporator motor, and the evaporator coil 300 and the evaporator on one side and the other side of the air conditioner frame 100. Each fan 200 is installed, and the electric heater 400 is separately installed so as to face the evaporator coil 300 at an adjacent position of the evaporator coil 300.

In addition, a multi-stage bending portion 110 bent in a step shape may be formed in the air conditioner frame 100 to which the electric heater 400 is coupled. When the electric heater 400 is coupled to the air conditioner frame 100, the multi-stage bending portion 110 allows these coupling portions to be in surface contact, thereby making close contact with each other.

At this time, the electric heater 400, the upper and lower parts are fixed to the air conditioner frame 100 through the fixing means, the fixing means through a plurality of fasteners formed on the upper, lower edge of the electric heater 400 The electric heater 400 is to be tightly fixed to the air conditioner frame (100). In this embodiment, the bolts that restrain the fasteners of the electric heater 400 are inserted into the air conditioner frame 100 through the washers, and fastening means for firmly fastening them by fixing nuts at the ends of the inserted bolts is used. However, the fixing means for fixing the upper and lower portions of the electric heater 400 to the air conditioner frame 100 is not limited thereto and may be changed and applied in various ways and structures.

In the case of a conventional railway vehicle air conditioning system, the electric heater is fixed to the upper part of the evaporator coil through a plurality of bolts and nuts integrally. In this state, when the railway vehicle moves, vibration is generated at the lower part of the electric heater. There was a problem that the coupling structure between the electric heater is damaged. On the contrary, in the case of the railway vehicle air conditioner according to the present invention, the electric heater 400 is firmly fixed to the air conditioner frame 100 in a state in which the electric heater 400 is separated from the evaporator coil 300 and disposed to face each other. That is, the electric heater 400 is coupled to the air conditioner frame 100 by bolts and nuts through fasteners formed at the corresponding edges, thereby preventing vibration caused by the movement of the railway vehicle.

Hereinafter, the rail car electric heater for reducing the vibration generated when the upper and lower parts of the air conditioner is moved in close contact with the air conditioner in detail as follows.

Figure 5a is a view showing the side of the railway vehicle electric heater, Figure 5b is a view showing the front of the railway vehicle electric heater.

5A and 5B, the electric heater 400 of the railway vehicle according to the present invention includes a heating element 420, a plurality of heat dissipation fins 430 formed on an outer circumferential surface of the heating element 420, and supporting them. An electric heater frame 410 and both ends are fixed to the electric heater frame 410 through the dust-proof fastening means 440, and includes a heater support channel 450 that restrains the heat radiation fins 430.

The electric heater frame 410 is to support components such as the heating element 420 and the heater support channel 450, a plurality of fasteners are formed in the upper and lower edges, the fastener in the air conditioner frame 100 Fastening bolts 441 and nuts 442 through the coupling is made. At this time, the electric heater frame 410 may be formed in the electric heater frame 410, the guide 460 in a position opposite to the fastener so that the electric heater frame 410 is easily mounted.

The heating element 420 supported by the electric heater frame 410 is a tubular shape in which a nichrome wire is provided therein so that heat is dissipated when power is applied, and extends in a horizontal direction so that both ends thereof are one side of the electric heater frame 410. It is respectively fixed to the other side of the imposition, a plurality of heat dissipation fins 430 for heat dissipation are installed on the outer peripheral surface.

The heat dissipation fin 430 is for effectively transferring heat generated from the heating element 420 to the outside, and is fixedly spaced apart at a predetermined interval in the longitudinal direction of the heating element 420, the outside of the heating element 420 at the corresponding position Radially extending around the periphery. In this embodiment, a plurality of heat dissipation fins 430 having a circular cross section around the heat generator 420 is arranged in the longitudinal direction of the heat generator 420, but the shape of the heat dissipation fin 430 is not limited thereto. you can change it.

The heat generating element 420 having the heat dissipation fins 430 is arranged in the column direction of the electric heater frame 410, the end of the heat generating element 420 is coupled to the fastening bolt 441 and the nut 442 by the electric It is fixed to both sides of the heater frame 410 and is supported by the branch bushing 470 for insulation. At this time, the heater support channel 450 is fixed to the upper and lower ends of the electric heater frame 410 at the center of the heating element 420 is installed.

FIG. 6A is an enlarged view of a portion “C” of FIG. 5A.

As shown in FIG. 6A, the heater support channel 450 is for fixing a plurality of heat generating elements 420 arranged in a row direction in a row direction, and includes a heat radiating fin 430 formed on an outer circumferential surface of the heat generating element 420. Press and fix on both sides. To this end, a pair of heater support channels 450 are positioned on both sides of the heat dissipation fins 430 so that the heater support channels 450 are fastened to the heat dissipation fins 430 with fastening bolts 441 and nuts. 442 is fixed to each other by bonding.

FIG. 6B is a view showing an enlarged configuration of part “D” of FIG. 5B, and FIG. 7 is an enlarged view of a modification of the dustproof fastening means shown in FIG. 6B.

As shown in FIG. 6B, both ends of the heater support channel 450 are fixed to the upper and lower portions of the electric heater frame 410 through the dustproof fastening means 440. At this time, the anti-vibration fastening means 440 is provided with anti-vibration rubber 443 at both ends of the electric heater frame 410 and the heater support channel 450 to transmit the vibration generated when the railway vehicle moves to the electric heater 400. Prevent it. For example, the anti-vibration fastening means 440 according to the present embodiment includes fastening bolts 441 and nuts for fastening the two adjacent members, that is, upper and lower portions of the electric heater frame 410 and both ends of the heater support channel 450. 442, a dustproof rubber 443 installed between the fastening bolt 441 and the nut 442, and a sleeve installed between the fastening bolt 441 and the nut 442 to limit compression between the two members. 444). A plurality of washers 445 may be interposed between the fastening bolts 441 and the nut 442, and the washer 445 may be a flat washer 445, a spring washer 445, or the like. The dustproof fastening means 440 described above may be modified in various configurations to reduce vibrations between the electric heater frame 410 and the heater support channel 450. For example, as shown in Figure 7, the dust-proof fastening means 440 is the upper and lower parts of the electric heater frame 410 and the heater support channel 450 by the fastening bolt 441 and the nut 442. Both ends of the fastening, and the anti-vibration rubber 443 interposed between the fastening bolt 441 and the nut 442 may be configured to be fixed to the electric heater frame 410.

Through this, in the case of the heating element 420 of the long axis to prevent sagging generated in the center, in particular, it is possible to block the vibration of the heating element 420 of the long axis by the vibration generated during the operation of the railway vehicle. That is, when vibration is generated from the railway vehicle, the vibration is first blocked by the heater support panel 450 which restrains the center of the heating element 420, and the dustproof fastening means for fixing the heater support channel 450 ( The secondary rubber is blocked by the anti-vibration rubber 443 of 440. As a result, the heating element 420 of the electric heater 400 may be prevented from vibrating together with the railway vehicle.

As described above, the railroad car electric heater 400 according to the present invention, the heater support channel 450 for supporting the center of the heating element 420 prevents the vibration of the heating element 420, the electric heater 400 It can improve the durability of the heat efficiency can be expected to increase the capacity of the heater.

In addition, the railway vehicle air-conditioning apparatus according to the present invention is the electric heater 400 is separated from the evaporator coil 300 from the effect of the vibration generated when the railway vehicle is fixed by the upper and lower portions of the air conditioner frame 100 You can be protected.

While the invention has been shown and described with respect to specific embodiments thereof, it will be appreciated that the invention can be variously modified and varied without departing from the spirit or scope of the invention as provided by the following claims. It will be obvious to those of ordinary skill.

As described above, according to the present invention, since the electric heater and the evaporator coil are separated, the electric heater is fixed to the upper and lower portions of the air conditioner frame to protect the electric heater from vibration generated when the railroad vehicle moves.

In addition, the present invention has the advantage of minimizing the vibration transmitted to the electric heater by constraining the heater support channel to the center of the heat generating element is a heat radiating fin is formed when the length of the heating element is extended as the capacity of the electric heater increases.

Claims (5)

Air conditioner frame, An evaporator fan provided at one side of the air conditioner frame, An evaporator coil installed on the other side of the air conditioner frame, An electric heater separately disposed at an opposite position of the evaporator coil and fixed to the air conditioner frame through a fixing means; The electric heater Electric heater frame, Heating elements fixed to one side and the other side of the electric heater frame, both ends extending in the horizontal direction, respectively, A plurality of heat dissipation fins formed on an outer circumferential surface of the heating element, Both ends are fixed to the upper and lower portions of the electric heater frame via the dust-proof fastening means, and the vibration prevention, characterized in that it comprises a pair of heater support channels disposed facing each other between the heat dissipation fins to contact and fix the heat dissipation fins. Air conditioning equipment for railroad cars. The method according to claim 1, The air conditioner frame Railroad vehicle heating and cooling device for preventing vibration, characterized in that the multi-stage bent portion corresponding to the lower portion of the electric heater is formed so that the electric heater is tightly fixed to the lower side. delete The method according to claim 1 or 2, The dustproof fastening means A fastening bolt and a nut for fastening two adjacent members to each other; It is installed between the fastening bolt and the nut and dustproof rubber, It includes a sleeve that is installed between the fastening bolt and the nut to limit the compression between the two members fastened, Rail vehicle cooling and heating device for vibration prevention, characterized in that a plurality of washers are interposed between the fastening bolt and the nut. Electric heater frame, Heating elements fixed to one side and the other side of the electric heater frame, both ends extending in the horizontal direction, respectively, A plurality of heat dissipation fins formed on an outer circumferential surface of the heating element, Anti-vibration, characterized in that both ends are fixed to the upper and lower portions of the electric heater frame through the dust-proof fastening means, and a pair of heater support channels disposed opposite the heat radiating fins so as to contact and fix the heat radiating fins. Rolling stock electric heaters for cars.

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