CN201129860Y

CN201129860Y - Locomotive cab heating fan

Info

Publication number: CN201129860Y
Application number: CNU2007201949353U
Authority: CN
Inventors: 李化
Original assignee: CSR Qishuyan Co Ltd
Current assignee: CRRC Qishuyan Co Ltd
Priority date: 2007-11-13
Filing date: 2007-11-13
Publication date: 2008-10-08
Anticipated expiration: 2017-11-13

Abstract

The utility model relates to an operator cabin warm-air drier of a locomotive, wherein a heating device is arranged in a casing body which is formed by a bottom board and a cover lid, an air inlet and air outlet passages which are surrounded by baffle boards are arranged on both sides of the heating device in the casing body, the tuyeres of the air inlet and the air outlet passages are faced to the cover lid, the cover lid which is opposite to the opening of the air inlet and the air outlet passages are respectively provided with an air inlet and an air outlet, and an eccentric draught fan which is fixed on the bottom board is arranged in the air inlet passage. The heating element of the utility model adopts PTC thermal sensitive ceramic plates and utilizes the draught fan to force air convection, therefore the operator cabin warm-air drier has the advantages of high electric heating conversing efficiency, security, no naked light and fast indoor air temperature rising. And since an external rotor brushless direct current motor which is adopted by the draught fan has the characters that the work revolution rate and operating voltage takes direct ratio, ventilation quantity of the draught fan can be changed through a direct current power supply to adjust the operating voltage of the motor, and the function of adjusting the power source of a warm-air drier is reached. The operator cabin warm-air drier adopts a double-pole automatic air switch to protect internal electric appliance elements in the warm-air drier, and meanwhile, the operator cabin warm-air drier is convenient for locomotive to find earth connection faults.

Description

The locomotive cab warm-air drier

Technical field

The utility model relates to locomotive driver chamber warm-air drier.

Background technology

The indoor used warm-air drier of locomotive driver be installed in the locomotive cab side wall and after within the walls, heating is electrothermal quartz tube normally, is the thermal resistance type heating, what take is free convection.Thermal resistance type warm-air drier power consumption height heats slower.

The utility model content

The purpose of this utility model is to propose a kind of rapid and energy-conservation locomotive driver chamber warm-air drier that heats.

For achieving the above object, the utility model is taked following technical scheme: the utlity model has electro-heat equipment, electro-heat equipment is in the housing of being made up of base plate and cover cap, be provided with in the housing be in the electro-heat equipment both sides each by dividing plate surround into and out of the air channel, into and out of the air port in air channel all towards cover cap, be respectively equipped with into and out of the air port facing to opening on the cover cap into and out of the air channel, be provided with the centrifugal fan that is fixed on the base plate in air inlet duct, described electro-heat equipment is a PTC thermal sensitive ceramics electro-heat equipment.

The motor of centrifugal fan adopts external rotor brushless DC motor.

Electro-heat equipment has by multilayer radiating piece layer and is connected the heat generating core that the PTC thermal sensitive ceramics layer between the adjacent radiating piece layer is formed, and is provided with fixed head around the heat generating core, and electro-heat equipment is connected with the dividing plate that surrounds into and out of the air channel by fixed head.

In the housing and on base plate, be fixed with dc source and bipolar automatic air-break switch; Circuit connects takes dc source to be connected with brushless direct current motor, and the heat generating core of electro-heat equipment is connected with the locomotive cable with dc source is in parallel, and bipolar automatic air-break switch is serially connected on the inlet wire that is connected with the locomotive cable.

The utlity model has following good effect:

1, heater element of the present utility model adopts PTC thermal sensitive ceramics sheet; PTC thermal sensitive ceramics sheet has the characteristics of temperature from limit, electric conversion efficiency height, the safe flames of anger, working stability quick heating; and because the thermal capacity of PTC heating self is very little; after so the warm-air drier outage is shut down; need not the blower fan delay working dispels the heat to it; simplify circuit design, improved the reliability of device.2, the utility model utilizes the blower fan forced air convection, the room air quick heating.3, the motor of centrifugal fan is an external rotor brushless DC motor, have dependable performance, ventilation is big, noise is low, advantage such as non-maintaining, and external rotor brushless DC motor has the advantages that working speed is directly proportional with its operating voltage, thereby, the operating voltage of regulating motor by dc source can change the ventilation of blower fan, reaches the function of regulating warm-air drier power.4, adopt bipolar automatic air-break switch, warm-air drier inside electric elements are protected, be convenient to locomotive simultaneously and search earth fault.

Description of drawings

For the easier quilt of content of the present utility model is clearly understood, below the specific embodiment and in conjunction with the accompanying drawings of basis, the utility model is described in further detail, wherein

Fig. 1 is an outside diagrammatic sketch of the present utility model;

Fig. 2 is the utility model interior view;

Fig. 3 is the A-A cutaway view of Fig. 1;

Fig. 4 is the dividing plate diagrammatic sketch that surrounds air inlet duct;

Fig. 5 is the left view of Fig. 4;

Fig. 6 is the dividing plate diagrammatic sketch that surrounds the exhaust passage;

Fig. 7 is the left view of Fig. 6;

Fig. 8 is the vertical view of Fig. 6;

Fig. 9 is the electro-heat equipment diagrammatic sketch;

Figure 10 is a circuit diagram.

The specific embodiment

Embodiment shown in Fig. 1 to 3 has the housing of being made up of base plate 1 and cover cap 2, is provided with electro-heat equipment 3 in the housing, and described electro-heat equipment 3 is PTC thermal sensitive ceramics electro-heat equipments.Electro-heat equipment 3 both sides each by dividing

plate

4,5 surround into and out of air channel 4-1,5-1.See Fig. 4 and Fig. 5, air inlet duct 4-1 bottom leads to.See Fig. 6 to Fig. 8,5-1 bottom in exhaust passage is an arcuation.The air port of air inlet duct 4-1 and exhaust passage 5-1 is all towards cover cap 2.Be provided with the centrifugal fan 6 that is fixed on the base plate 1-1 in air inlet duct 4-1, the motor 6-1 of centrifugal fan 6 adopts external rotor brushless DC motor.Opening facing to air inlet duct 4-1 on the cover cap 2 is provided with air inlet 2-1, and the opening that faces toward exhaust passage 5-1 is provided with air outlet 2-2.

See Fig. 9, electro-heat equipment 3 has by 3 layers of radiating piece layer 3-2 and is connected 2 layers of heat generating core that PTC thermal sensitive ceramics layer 3-1 forms between the adjacent radiating piece layer 3-2.Every PTC thermal sensitive ceramics layer 3-1 layer is to be put together by multi-disc PTC thermal sensitive ceramics sheet, and potsherd is bonded between the adjacent radiating piece.Be provided with fixed head 3-3 around the heat generating core.Electro-heat equipment 3 by fixed head 3-3 be connected with the dividing

plate

4,5 that surrounds into and out of the air channel.

See Figure 10, in the housing and on base plate 1, be fixed with dc source 8 and bipolar automatic air-break switch 9; Circuit connects takes dc source 8 to be connected with brushless direct current motor 6-1, and 8 parallel connections are connected with the locomotive cable heat generating core of electro-heat equipment 3 with dc source, and bipolar automatic air-break switch 9 is serially connected on the inlet wire that is connected with the locomotive cable.

Claims

1, a kind of locomotive cab warm-air drier, has electro-heat equipment (3), it is characterized in that: electro-heat equipment (3) is in the housing of being made up of base plate (1) and cover cap (2), be provided with in the housing and be in electro-heat equipment (3) both sides respectively by dividing plate (4, what 5) surround advances, exhaust passage (4-1,5-1), advance, exhaust passage (4-1, air port 5-1) is all towards cover cap (2), cover cap faces toward on (2), exhaust passage (4-1, opening 5-1) is respectively equipped with into, air outlet (2-1,2-2), be provided with the centrifugal fan (6) that is fixed on the base plate (1) in air inlet duct (4-1), described electro-heat equipment (3) is a PTC thermal sensitive ceramics electro-heat equipment.

2, locomotive cab warm-air drier according to claim 1 is characterized in that: the motor (6-1) of centrifugal fan (6) adopts external rotor brushless DC motor.

3, locomotive cab warm-air drier according to claim 2, it is characterized in that: electro-heat equipment (3) has by multilayer radiating piece layer (3-2) and is connected the heat generating core that the PTC thermal sensitive ceramics layer (3-1) between the adjacent radiating piece layer (3-2) is formed, be provided with fixed head (3-3) around the heat generating core, electro-heat equipment (3) is connected with the dividing plate (4,5) that surrounds into and out of the air channel by fixed head (3-3).

4, locomotive cab warm-air drier according to claim 3 is characterized in that: in the housing and be fixed with dc source (8) and bipolar automatic air-break switch (9) on base plate (1); Circuit connects takes dc source (8) to be connected with brushless direct current motor (6-1), and the heat generating core of electro-heat equipment (3) is connected with the locomotive cable with dc source (8) is in parallel, and bipolar automatic air-break switch (9) is serially connected on the inlet wire that is connected with the locomotive cable.