Generator special for air-conditioned passenger car
By renovating the special generator for air-conditioned buses, the existing generator has been solved with complex structure and high maintenance costs, and a smaller size, more convenient maintenance and better heat dissipation effect is achieved, extending the life of the generator and providing more stable power guarantee.
Patent Information
- Application Number
- CN202422148231.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-02
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-09-02
AI Technical Summary
The existing diesel locomotive generator has a complex structure, high maintenance cost and large volume, which increases the vehicle's weight and space occupied, and has a high failure rate in harsh environments, affecting the normal operation of passenger cars.
The special generator for air-conditioned passenger cars is renovated, with a smaller volume design, adding windshield and outlet windows, improving the heat dissipation structure, and forming a rear cover through polypropylene injection molding to improve the stability of the overall structure.
It achieves a smaller size, more convenient and quick repair and troubleshooting, and better heat dissipation effect, extends the life of the generator and provides more stable power guarantee.
Smart Images
Figure CN222996334U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a special generator for air-conditioned passenger cars. Background Art
[0002] In remote mountainous areas in the northwest and southwest of China, the terrain is complex, the construction is difficult, the cost is high, the geological conditions are poor, and natural disasters occur frequently, which affect safety. Therefore, high-speed railways have not yet reached these areas, so ordinary-speed trains have become important railway transportation hubs in these regions. With the improvement of passengers' requirements for riding comfort, it has become a necessary configuration to equip the train with an air-conditioning system. As the core component of the air-conditioning system of passenger cars, the technical development of the special generator for air-conditioned passenger cars is driven by market demand. In order to meet the power demand of a larger power, diesel generator sets are used to supply power to the air-conditioning system of passenger cars. The special generator for air-conditioned passenger cars usually has a stable power supply capacity and can provide reliable power guarantee for the air-conditioning system of passenger cars. However, the existing generators for diesel locomotives have a complex structure, a high maintenance cost and a large volume, which increase the dead weight and occupied space of the vehicle. Due to long-term operation in remote mountainous areas in the northwest and southwest of China, the environment is harsh (such as high temperature, high humidity, long-term operation, etc.), the failure rate is high, and the maintenance time is long each time, which affects the normal operation of passenger cars. Content of the Utility Model
[0003] The purpose of the utility model is to overcome the defects of the prior art and provide a special generator for air-conditioned passenger cars, which has a smaller volume, more convenient and faster maintenance and troubleshooting, better heat dissipation, a long service life, and can provide more stable guarantee for the operation of air-conditioned passenger cars.
[0004] The purpose of the utility model is realized by the following technical solutions: a special generator for air-conditioned passenger cars, which is transformed from a generator for diesel locomotives and includes a cylindrical housing, a front end cover, a wind shield, a rear end cover assembly and an outgoing line box of the generator; front housing flanges and rear housing flanges are respectively arranged at the front end and the rear end of the housing; a front end cover flange is arranged at the rear end of the front end cover; wherein,
[0005] The rear end cover assembly includes a rear end cover and a rear cover; a rear end cover flange is arranged at the front end of the rear end cover, and the rear end cover is installed on the rear housing flange through the rear end cover flange; the rear cover covers the rear end face of the rear end cover through bolts;
[0006] The wind shield includes a lower cover plate, an upper cover body and a protection net plate; the lower cover plate is a lower semi-circular arc plate and is fixed between the lower part of the front housing flange and the lower part of the front end cover flange. Both ends of the lower cover plate each have a horizontally outwardly turned-down edge, and connection holes are provided on the turned-down edges; the upper cover body includes two upper cover plates and two upper cover end plates; the two upper cover plates are rectangular straight plates and have the same width as the lower cover plate. The lower ends of the two upper cover plates each have a horizontally outwardly turned-up edge, and connection holes are also provided on the turned-up edges, so that the two upper cover plates are bolted to both ends of the lower cover plate in a one-to-one correspondence; the two upper cover end plates are rectangular and have a width adapted to the outer diameter of the front end cover flange. Semi-circular arc grooves adapted to the outer diameter of the front end cover flange are provided at the bottoms of the two upper cover end plates, so that one upper cover end plate rides on the front end cover flange and is connected between the fronts of the two upper cover plates, and the other upper cover end plate rides on the front housing flange and is connected between the rears of the two upper cover plates, so that the top opening of the upper cover body is rectangular; the shape and size of the protection net plate are adapted to the shape and size of the top opening of the upper cover body and are installed on the top opening of the upper cover body;
[0007] The wire outlet box is installed on the back of the rear part of the housing. The wire outlet box includes a lower box body, an upper box body and a box cover; the lower box body includes two lower box body end plates and two lower box body side plates connected between the two sides of the two lower box body end plates in a one-to-one correspondence; arc grooves adapted to the outer diameter of the housing are provided on the bottom surfaces of the lower box body end plates, so that the two lower box body end plates ride on the back of the housing; the upper box body includes an upper box body bottom plate, two upper box body side plates connected to the two side edges of the upper box body bottom plate in a one-to-one correspondence, and two upper box body end plates connected to the two end edges of the upper box body bottom plate in a one-to-one correspondence; the length of the upper box body bottom plate is adapted to the distance between the two lower box body end plates, the width of the upper box body bottom plate is greater than the width of the lower box body end plates, and the upper box body bottom plate is offset and fixed on the top surface of the lower box body, so that a lower box body side plate protrudes from one side of the upper box body bottom plate. An oval wire outlet is provided in the protruding part of the upper box body bottom plate, and a wire outlet guard plate made of epoxy glass cloth board is installed in the wire outlet, and a wire outlet hole is provided on the wire outlet guard plate; a wire dividing pressure block is longitudinally installed in the middle of the upper box body bottom plate. A current transformer is installed on the upper box body bottom plate on the side of the wire dividing pressure block facing the wire outlet, and three wiring copper bars are horizontally installed on the upper box body bottom plate between the current transformer and the wire outlet. An inlet corresponding to the lead hole on the housing is provided on the upper box body bottom plate on the other side of the wire dividing pressure block; a voltage regulator and a paralleling module are installed on one upper box body end plate; a box side window is provided on one upper box body side plate close to the wire outlet, and a transparent glass is installed on the box side window; a box top window is provided on the box cover, and a transparent glass is also installed on the box top window.
[0008] For the above-mentioned special generator for air-conditioned buses, among them, the rear cover in the rear end cover assembly is formed by polypropylene injection molding.
[0009] The above-mentioned special generator for air-conditioned passenger cars, wherein the wire-splitting pressure block includes two pressing plates stacked one above the other and two rubber gaskets respectively arranged on the opposite surfaces of the two pressing plates; three wire grooves are respectively formed on the opposite surfaces of the two pressing plates, and three wire-passing channels are formed after the two pressing plates are stacked. Through holes are respectively formed on both sides of the two pressing plates, so that the two pressing plates are installed on the bottom plate of the upper box body through two locking bolts; three stator lead wires of the generator are led out through the lead holes on the machine shell, then enter the wire outlet box through the wire inlet on the bottom plate of the upper box body, and respectively pass through the wire-passing channels between the two pressing plates of the wire-splitting pressure block and are respectively fixed on the input ends of three wiring copper bars. One cable is respectively connected to the output end of each of the three wiring copper bars, and the three cables are all led out through the wire outlet holes on the wire outlet guard plate.
[0010] The above-mentioned special generator for air-conditioned passenger cars, wherein the wire-splitting pressure block is installed on the bottom plate of the upper box body through a bracket.
[0011] The special generator for air-conditioned passenger cars of the present utility model has the following characteristics:
[0012] 1. By changing the installation position of the wire outlet box, the overall length of the generator can be shortened by more than 10%, leaving maintenance space and heat dissipation space, and shortening the overall troubleshooting and maintenance time of the generator.
[0013] 2. A window function is provided on the wire outlet box, which can quickly observe and judge the situation inside the wire outlet box, shortening the troubleshooting time, and the customized wire-splitting block makes the wire routing inside the wire outlet box orderly and stable.
[0014] 3. The original annular air outlet grille is replaced with a windproof cover, so that the air outlet direction of the generator is all upward. Then, it is connected to the windproof cover through a ventilation duct, which can directly discharge the heat generated by the generator outside the carriage, significantly reducing the overall temperature inside the carriage, greatly increasing the heat dissipation capacity of the generator, increasing the overall service life of the generator, and the protective mesh plate on the top of the windproof cover can also effectively prevent foreign objects from entering the generator. Description of the Drawings
[0015] Figure 1 is a side view of a generator for diesel locomotives in the prior art;
[0016] Figure 2 is an axial sectional view of the special generator for air-conditioned passenger cars of the present utility model;
[0017] Figure 3 is a rear view of the special generator for air-conditioned passenger cars of the present utility model;
[0018] Figure 4 is a perspective view of the windproof cover of the special generator for air-conditioned passenger cars of the present utility model;
[0019] Figure 5 is a perspective view of the upper box body of the outgoing line box in the special generator for air-conditioned passenger cars of the present utility model;
[0020] Figure 6 is a structural schematic diagram of the wire dividing pressure block in the special generator for air-conditioned passenger cars of the present utility model. Specific embodiments
[0021] The present utility model will be further described below in conjunction with the accompanying drawings.
[0022] Please refer to Figures 1 to 6 , the special generator for air-conditioned passenger cars of the present utility model is modified from a generator for diesel locomotives. The generator for diesel locomotives includes a cylindrical housing 10 of the generator, a front end cover 11, a rear end cover 12, and a junction box 2. An annular air outlet grille 13 is provided between the front end cover 11 and the housing 10; the rear end cover 12 adopts the rear end cover of a marine generator; the junction box 2 is installed on the back of the rear end cover 12 (see Figure 1 ). Due to the compact internal space of the air-conditioned passenger car, the space of the entire generator compartment of the air-conditioned car is sealed, and the heat dissipation effect of the annular air outlet grille 13 is limited. Therefore, there is a great test for the heat dissipation of the entire generator set. In addition, due to the relatively large length of the rear end cover of the marine generator, the space occupied by the generator is relatively long, and the maintenance space is small. The junction box 2 is completely enclosed, and the internal components cannot be observed, which brings inconvenience to maintenance and troubleshooting.
[0023] The special generator for air-conditioned passenger cars of the present utility model includes a cylindrical housing 10 of the generator, a front end cover 11, a wind shield 2, a rear end cover assembly, and an outgoing line box 4.
[0024] The front and rear ends of the housing 10 are respectively provided with a front housing flange and a rear housing flange.
[0025] The rear end of the front end cover 11 is provided with a front end cover flange.
[0026] The rear end cover assembly includes a rear end cover 12a and a rear cover 12b; the front end of the rear end cover 12a is provided with a rear end cover flange; and it is installed on the rear housing flange through the rear end cover flange; the rear cover 12b is formed by polypropylene injection molding and covers the rear end face of the rear end cover 12a through bolts.
[0027] The wind shield 3 includes a lower cover plate 31, an upper cover body and a protection net plate 34; wherein, the lower cover plate 31 is a lower semi-circular arc plate and is fixed between the lower part of the front housing flange and the lower part of the front end cover flange. Both ends of the lower cover plate 31 respectively have horizontally outwardly turned-down edges 310, and connection holes are provided on the turned-down edges 310; the upper cover body includes two upper cover plates 32 and two upper cover end plates 33; the two upper cover plates 32 are rectangular straight plates and have the same width as the lower cover plate 31. The lower ends of the two upper cover plates 32 respectively have horizontally outwardly turned-up edges 320, and connection holes are also provided on the turned-up edges 320, so that the two upper cover plates 32 are bolted to both ends of the lower cover plate 31 in a one-to-one correspondence; the two upper cover end plates 33 are rectangular and have a width adapted to the outer diameter of the front end cover flange. Semi-circular arc grooves adapted to the outer diameter of the front end cover flange are provided at the bottoms of the two upper cover end plates 33, so that one upper cover end plate 33 straddles the front end cover flange and is connected between the front ends of the two upper cover plates 32, and the other upper cover end plate 33 straddles the front housing flange and is connected between the rear ends of the two upper cover plates 32, so that the top opening of the upper cover body is rectangular; the shape and size of the protection net plate 34 are adapted to the shape and size of the top opening of the upper cover body and are installed on the top opening of the upper cover body.
[0028] The outgoing line box 4 is installed on the back of the housing 10. The outgoing line box 4 includes a lower box body 4A, an upper box body 4B and a box cover 4C. Among them, the lower box body 4A has no top and no bottom and includes two lower box body end plates 41 and two lower box body side plates 42 connected between the two sides of the two lower box body end plates 41 in a one-to-one correspondence. An arc groove adapted to the outer diameter of the housing 10 is formed on the bottom surface of the lower box body end plate 41, so that the two lower box body end plates 41 straddle the back of the housing 10. The upper box body 4B includes an upper box body bottom plate 43, two upper box body side plates 44 connected to the two side edges of the upper box body bottom plate 43 in a one-to-one correspondence, and two upper box body end plates 45 connected to the two end edges of the upper box body bottom plate 43 in a one-to-one correspondence. The length of the upper box body bottom plate 43 is adapted to the distance between the two lower box body end plates 41, the width of the upper box body bottom plate 43 is greater than the width of the lower box body end plate 41, and the upper box body bottom plate 43 is fixedly offset on the top surface of the lower box body 4A, so that one side of the upper box body bottom plate 43 protrudes a lower box body side plate 42. An oval outgoing line opening is formed in the protruding part of the upper box body bottom plate 43, and an outgoing line opening guard plate 46 made of epoxy glass cloth board is installed in the outgoing line opening. Wiring holes are formed in the outgoing line opening guard plate 46. A bracket 5 is longitudinally installed in the middle of the upper box body bottom plate 43, and a wire dividing pressure block 5 is installed on the bracket 5. The wire dividing pressure block 5 includes two pressing plates 51 stacked one on top of the other and two rubber gaskets 52 arranged on the opposite surfaces of the two pressing plates 51 in a one-to-one correspondence. Three wire grooves are respectively formed on the opposite surfaces of the two pressing plates 51. After the two pressing plates 51 are stacked, three wire passing channels are formed. Through holes are respectively formed on both sides of the two pressing plates 51, so that the two pressing plates 51 are installed on the bracket 50 through two locking bolts 53, elastic washers, flat washers and nuts. A current transformer 6 is installed on the upper box body bottom plate 43 on the side of the wire dividing pressure block 5 facing the outgoing line opening, and three wiring copper bars 7 are transversely installed on the upper box body bottom plate 43 between the current transformer 6 and the outgoing line opening. An incoming line port 47 corresponding to the lead hole on the housing 10 is formed on the upper box body bottom plate 43 on the other side of the wire dividing pressure block 5. A voltage regulator 8 and a paralleling module 9 are installed on one upper box body end plate 45. A box side window is formed on one upper box body side plate 44 close to the outgoing line opening, and a transparent glass is installed on the box side window. A box top window is formed on the box cover 4C, and a transparent glass is also installed on the box top window.
[0029] The three stator outgoing lines 100 of the generator are led out through the lead holes on the housing 10, then enter the outgoing line box 4 through the incoming line port 47 on the upper box body bottom plate 43, and pass through the wire passing channels of the wire dividing pressure block 5 in a one-to-one correspondence, so that the stator outgoing lines 100 are stably and orderly fixed in the outgoing line box 4, and then are fixedly connected to the input ends of the three wiring copper bars 7 in a one-to-one correspondence. One cable line is respectively connected to the output ends of the three wiring copper bars 7, and the three cable lines are all led out through the wiring holes on the outgoing line opening guard plate 46. The wiring holes on the outgoing line opening guard plate 46 are slightly smaller than the outgoing line opening, avoiding the risk of damage caused by direct contact and friction between the cable line and the upper box body.
[0030] The above embodiments are only for illustrating the present utility model, rather than limiting the present utility model. Those skilled in the relevant technical fields can also make various transformations or modifications without departing from the spirit and scope of the present utility model. Therefore, all equivalent technical solutions should also fall within the scope of the present utility model and should be defined by each claim.
Claims
1. A generator for air-conditioned passenger cars, which is modified from a generator for a diesel locomotive and comprises a cylindrical housing, a front end cover, a wind shield, a rear end cover assembly and an outlet box of the generator; the front end and the rear end of the housing are provided with a front housing flange and a rear housing flange in a one-to-one correspondence; the rear end of the front end cover is provided with a front end cover flange; characterized in that, The rear end cover assembly comprises a rear end cover and a rear shield; a rear end cover flange is provided at the front end of the rear end cover and is mounted on the rear housing flange through the rear end cover flange; the rear shield is covered on the rear end surface of the rear end cover by bolts; The wind shield comprises a lower cover plate, an upper cover body and a protective mesh plate; the lower cover plate is a lower semicircular arc plate and is fixed between the lower part of the front housing flange and the lower part of the front end cover flange, and the two ends of the lower cover plate each have a horizontal outward lower flange, and a connecting hole is provided on the lower flange; the upper cover body comprises two upper cover plates and two upper cover end plates; the two upper cover plates are rectangular straight plates and have the same width as the lower cover plate, and the lower ends of the two upper cover plates each have a horizontal outward upper flange, and a connecting hole is also provided on the upper flange, so that the two upper cover plates are connected one by one through bolts Connected to the two ends of the lower cover plate; the two upper cover end plates are rectangular and the width is adapted to the outer diameter of the front end cover flange, and the bottoms of the two upper cover end plates are provided with semicircular arc grooves adapted to the outer diameter of the front end cover flange, so that one upper cover end plate rides on the front end cover flange and is connected between the front ends of the two upper cover plates, and the other upper cover end plate rides on the front casing flange and is connected between the rear ends of the two upper cover plates, so that the top opening of the upper cover body is rectangular; the shape and size of the protective mesh plate are adapted to the shape and size of the top opening of the upper cover body and are installed on the top opening of the upper cover body; The two cams are connected in a one-to-one manner to the two sides of the two lower box end plates, and the two cams are connected in a one-to-one manner to the two lower box end plates. The side plate of the box body has a round waist-shaped outlet on the protruding part of the upper box body bottom plate, and an outlet guard plate made of epoxy glass cloth is installed in the outlet, and the outlet guard plate has an outlet hole; a branching pressure block is longitudinally installed in the middle of the upper box body bottom plate, a current transformer is installed on the upper box body bottom plate on the side of the branching pressure block facing the outlet, and three wiring copper bars are horizontally installed on the upper box body bottom plate between the current transformer and the outlet, and an inlet corresponding to the lead hole on the casing is opened on the upper box body bottom plate on the other side of the branching pressure block; a voltage regulator and a paralleling module are installed on an upper box body end plate; a box side window is opened on an upper box body side plate close to the outlet, and transparent glass is installed on the box side window; a box top window is opened on the box cover, and transparent glass is also installed on the box top window.
2. The generator for air-conditioned passenger cars according to claim 1, characterized in that: The rear cover in the rear end cover assembly is formed by injection molding of polypropylene.
3. The generator for air-conditioned passenger cars according to claim 1, characterized in that: The branch line pressure block includes two pressure plates stacked one above the other and two rubber gaskets correspondingly arranged on the opposite surfaces of the two pressure plates; three wire grooves are correspondingly opened on the opposite surfaces of the two pressure plates, and three wire threading channels are formed after the two pressure plates are stacked, and through holes are respectively opened on both sides of the two pressure plates, so that the two pressure plates are installed on the bottom plate of the upper box body through two locking bolts; the three stator lead wires of the generator are led out through the lead holes on the casing, and then enter the outlet box through the wire inlet on the bottom plate of the upper box body, and pass through the wire threading channels between the two pressure plates of the branch line pressure block one by one, and then are fixed one by one on the input ends of the three wiring copper bars, and the output ends of the three wiring copper bars are each connected to a cable, and the three cables are all led out from the outlet holes on the outlet guard plate.
4. The generator for air-conditioned passenger cars according to claim 1 or 3, characterized in that: The line dividing pressing block is installed on the bottom plate of the upper box body through a bracket.