JPH0440143Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Field of Application The present invention relates to a vehicle refrigeration system suitable for application to refrigerated cars and refrigerated cars. The present invention relates to a refrigeration device that cools a refrigerator.

〓Summary of the invention〓 This invention provides a retarder made of a generator, and uses the output of this generator to drive a refrigeration cycle to cool the cold storage agent held in the freezing plate. This is designed to cool a freezer or cold storage, and allows the refrigeration cycle to be driven even while the vehicle is running.

〓Conventional technology〓 There is a method that uses a freezing plate to cool a freezer or cold storage installed in a vehicle. In this method, cold storage or freezing is performed using a cold storage agent held in a freezing plate. That is, after returning to the garage, the compressor of the refrigeration cycle is driven by the commercial power source, thereby operating the refrigeration cycle to cool and store cold storage agent held in the freezing plate via the evaporator. When it is time to depart, the driver disconnects the plug from the outlet, cuts off the commercial power supply, and shuts down the compressor.

〓Problems to be solved by the invention〓 According to such a conventional method of freezing or keeping cold using a cold storage agent using a freezing plate, the refrigeration cycle does not operate while the vehicle is running. Therefore, heat entering from the outside or heat generated by loaded items is absorbed by the heat of fusion of the cool storage agent. Therefore, such a refrigeration system has the disadvantage that, if all the regenerator in the refrigeration plate melts, it loses its ability to refrigerate. In other words, according to the conventional method, there was a limit to the amount of time that food could be frozen or kept cold.

The present invention was developed in view of these problems, and provides a refrigeration system for vehicles that can operate the refrigeration cycle even while the vehicle is running, thereby extending the time during which it can be frozen or kept cold. The purpose is to provide

〓Means for solving the problem〓 The present invention is an apparatus in which a cold storage agent held in a freezing plate is cooled by a refrigeration cycle, and a freezer or a cold storage is cooled by this cold storage agent. , a retarder consisting of a generator is provided, a load resistor is connected to the generator coil of the generator, and the generator coil is connected to the motor via a regulator circuit so as to be parallel to the load resistor. The compressor of the refrigeration cycle is driven by the retarder, and the refrigeration cycle is driven by the output of the generator constituting the retarder via the regulator circuit and the motor.

〓Operation〓 Therefore, according to the present invention, when a braking force is obtained by a retarder consisting of a generator, the generator generates an output. Therefore, by driving the refrigeration cycle with this output, it becomes possible to cool the cold storage agent held in the freezing plate,
With this cold storage agent, it becomes possible to cool a freezer or a cold storage box that is frozen or kept cold for a longer period of time.

〓Example〓 The present invention will be described below with reference to an illustrated example.
FIG. 1 shows an engine 1 equipped with a retarder according to an embodiment of the present invention, and this engine 1 is constituted by, for example, a diesel engine for a truck. A flywheel housing 2 is provided on the rear side of the engine 1. A stator case 8 of an inductor type generator, which will be described later, is attached to the upper and lower sides of the housing 2. Furthermore, a transmission 5 is arranged on the back side of the flywheel housing 2, and changes the rotation speed of the engine 1 to an appropriate value, and controls the propeller shaft 6.
The power is transmitted to the drive wheels via the

Next, the structure of the retarder provided in this engine 1 will be described. As shown in FIG.
Inductor magnetic poles 7 are arranged at predetermined pitches along the circumferential direction on the outer peripheral surface of the flywheel 4 fixed to the end of the flywheel 4.
is provided. The flywheel 4 provided with this magnetic pole 7 constitutes a rotor of an inductor type generator, and this generator constitutes a retarder of an automobile. Cases 8 are provided on the upper and lower sides of the housing 2, and a stator of an inductor type generator is housed in these cases 8.

As shown in FIG. 3, this stator includes a plurality of pole cores 9 arranged in the circumferential direction of the flywheel 4. The lower end of the pole core 9 faces the inductor magnetic pole 7 via a small air gap, and the upper end is fixed to the cover plate of the case 8 via the stator yoke 10. The pole core 9 has an armature coil 11 and a field coil 1.
2 are wrapped respectively. Note that while the armature coil 11 is wound across two pole cores 9, one field coil 12 is wound around each pole core 9.

The stator field coil 12 having such a configuration
is connected to a battery 14 via a controller 13 shown in FIG. On the other hand, the armature coil 11 of the stator is connected to a load resistor 15 via a switch 16, as shown in FIGS. 2 and 1. Furthermore, armature coil 1
1 is a regulator circuit 17 as shown in FIG.
is connected to. This regulator circuit 17 is adapted to drive a motor 18, and is also adapted to receive commercial power through an outlet plug 19.

The motor 18 is connected to a compressor 20 of a refrigeration cycle. The compressor 20 is connected to a capacitor 21, and the capacitor 21 is further connected to an evaporator 22. This evaporator 22
is designed to cool the cold storage agent 24 of the freezing plate 23. A freezing plate 23 is provided inside the cold storage 25.

Next, the operation of the retarder for this automobile configured as described above will be explained. For example, when a car equipped with this retarder goes down a long slope, a retarder switch (not shown) provided in the driver's seat is turned on. Then, the controller 13 shown in FIG. 3 is activated, and a field current flows from the battery 14 through the controller 13 to the field coil 12 of the stator of the inductor type generator.
2 will be excited.

When the field coil 12 is excited in this way, as shown in FIG. The paired pole cores 9 are magnetized to have different polarities. Therefore, at a certain moment, a magnetic circuit 35 as shown by the dotted line in FIG. 3 is formed, and when the flywheel 4 rotates and the inductor magnetic pole 7 moves by an angle corresponding to the pitch of the pole core 9 ,
A magnetic circuit 36 as shown by the chain line in FIG. 3 is formed.

The magnetic fluxes passing through these magnetic circuits 35 and 36 both interlink with the armature coil 11, and the two
The directions of the magnetic fluxes passing through the two magnetic circuits 35 and 36 are reversed. Therefore, due to this change in magnetic flux, an electromotive force is induced in the armature coil 11, and this inductor type generator generates electricity. This means that the engine 1 or the vehicle drives the flywheel 4, and the work done from the outside at this time is absorbed as braking force. Therefore, the vehicle receives a braking force and is decelerated by the power generated by the inductor type generator. The generated output at this time is consumed by the load resistor 15 shown in FIGS. 1 and 2.

Furthermore, the output of the inductor type generator constituting the retarder is supplied to a motor 18 via a regulator circuit 17. In this case, the switch 16 is left open. Then motor 1
8 drives the compressor 20, and the working medium is compressed by the compressor 20. Then, the compressed working medium releases heat to the high temperature side in the condenser 21 and is liquefied. After that, heat is taken from the cool storage agent 24 in the evaporator 22 and turned into steam, which is then transferred to the compressor 2.
It will return to 0. Therefore, at this time, freezing plate 2
Heat will be taken away from the cold storage agent 24 held in the cooling agent 3, and this cold storage agent 24 will be cooled. Note that cooling of the regenerator 24 by the output of the generator that constitutes this retarder can be performed not only during braking but also during normal driving. In that case, the engine output is reduced by the amount required to drive the refrigeration cycle. All you have to do is upload it.

In this way, in the vehicle refrigeration system according to this embodiment, if the braking force is obtained by the retarder, the refrigerating cycle can be driven by the electric power generated by the retarder even while the vehicle is running. . Therefore, melting of the cold storage agent 24 can be suppressed, or the time of freezing or cold storage can be extended. For this reason, a refrigeration system using the refrigeration plate 23 enables long-distance transportation.
Further, since electric power is obtained through the retarder, the compressor 20 of the refrigeration cycle is driven only during braking, so that the fuel efficiency of the engine 1 is not deteriorated. Furthermore, when a vehicle equipped with this refrigeration system returns to the garage, the motor 18 is driven by commercial power by inserting the plug 19 into the outlet. 24 is being cooled.

Effects of the invention As described above, the present invention provides a retarder consisting of a generator, connects a load resistor to the generator coil, and connects the generator coil to the regulator in parallel with the load resistor. It is connected to a motor via a circuit, and the motor drives a compressor of the refrigeration cycle, and the output of the generator constituting the retarder drives the refrigeration cycle via a regulator circuit and the motor. This is what I did.

Therefore, according to the present invention, when braking a vehicle using a retarder, the energy recovered by the generator constituting the retarder is effectively used to drive the motor, and the refrigeration system using a cold storage agent is used. It becomes possible to drive the compressor of the cycle to cool the refrigerant. That is, it becomes possible to drive the refrigeration cycle by effectively utilizing the energy recovered during braking. Further, when there is no need to drive the refrigeration cycle, the generated output can be consumed by the load resistance, and the operation of the retarder is not restricted thereby.

Further, according to the present invention, as described above, when the vehicle is braked, the refrigerating cycle can be driven using the refrigerant by the energy recovered by the generator constituting the retarder. In other words, while the vehicle is running, it is possible to cool the cold storage agent one after another, thereby extending the time it can be frozen or kept cold, and also allowing the refrigeration cycle to be driven by commercial power if necessary. It can be omitted or reduced.

[Brief explanation of drawings]

Fig. 1 is a block diagram showing a vehicular refrigeration system according to an embodiment of the present invention, Fig. 2 is an external perspective view of a retarder for driving this refrigeration system, and Fig. 3 is an enlarged front view of the same essential parts. It is. In addition, in the symbols used in the drawings, 4...flywheel, 7...inductor magnetic pole, 8...case, 9
...Pole core, 10...Stator yoke, 11...
...Armature coil, 12...Field coil, 13...
Controller, 14...Battery, 15...Load resistance, 16...Switch, 17...Regulator circuit, 18...Motor, 19...Plug, 20...
...Compressor, 21...Capacitor, 22...
Evaporator, 23...refrigeration plate, 24...cold storage agent, 25...cold storage.

Claims (1)

[Scope of utility model registration request] In a device in which a cold storage agent held in a freezing plate is cooled by a refrigeration cycle, and a freezer or a cold storage is cooled by this cold storage agent, a retarder consisting of a generator is provided, and the power generation of this generator is A load resistor is connected to the coil, and the generator coil is connected to a motor via a regulator circuit so as to be parallel to the load resistor, and the compressor of the refrigeration cycle is driven by the motor. A vehicular refrigeration system, characterized in that the refrigeration cycle is driven by the output of a generator constituting the retarder via the regulator circuit and the motor.