JP5476285B2 - Compressor recycling method - Google Patents

Description

The present invention, air conditioning, involved in recycling how the compressor used in a refrigerator or the like, in particular, members by separation of compressor relates to the recycling how suitable compressor recovery.

  A compressor used in an air conditioner, a refrigerator, etc. is composed of a pump and a motor part for operating the pump, a case covering the whole, and the motor part is composed of a stator wound with copper wire and an iron core into which a permanent magnet is inserted. It is common. Each of these components is useful, and it is important in terms of resource circulation to establish a method of dividing and separating the collected compressors into these components and recycling them as members.

  However, the compressor has a strong structure to meet the conflicting demands such as low power consumption, low noise, low vibration, long life, etc. The actual situation was that there was no other recycling.

  A method of taking out a stator with a copper wire from among members is disclosed in Patent Document 1, in which a case is cut into three parts to be divided into a stator, an iron core, and a pump part, and then the iron constituting the stator. A process for separating copper from copper is disclosed.

JP 2000-176430 A

  The method described in Patent Document 1 shows a method of separating only the stator and the iron and copper constituting the stator.

  In the recycling method of the compressor, it is important to collect not only the stator that contains iron and copper that are members constituting the compressor, but also the iron core and further the magnet from the compressor. In particular, recent compressors use magnets using rare earths for the purpose of power saving, and this recovery is very important. However, Patent Document 1 does not describe these matters.

The object of the present invention is to solve the problems of the prior art, and separate and divide the compressor, used in an air conditioner, a refrigerator, etc., into a stator, a pump, and a case wound with a magnet, an iron core, and a copper wire. there is to be subjected Hisage the recycling method of the compressor which makes it possible to recycle properly and useful.

  In order to solve the above problems, the present invention is a series of processes of cutting a case, cutting an end plate at the end of an iron core, pushing a pump, demagnetizing a magnet built in the iron core, and taking out a magnet from the iron core. Thus, the constituent members of the compressor including the magnet are divided and separated.

  According to the present invention, a compressor used in an air conditioner, a refrigerator, etc. can be separated and divided into a magnet, an iron core, a stator wound with a copper wire, a pump, and a case, and each member can be recycled appropriately and usefully. It becomes.

Process flow diagram explaining an example Separation and exploded view of the compressor along the process explaining the embodiment Structure of iron core with magnet inserted Diagram explaining demagnetization procedure Diagram explaining magnet removal Diagram explaining another method of magnet removal

  An example of the implementation procedure of the present invention will be described with reference to FIGS.

  The compressor 201 is fixed to the apparatus, and the case is cut by the circumferential cutter 202a (step 101). This cutting may be performed by ordinary circumferential cutting. By this operation, the compressor is separated into the stator side 201a and the pump side 201b.

  The separated stator side 201a may be further separated into a case and a stator (step 102) by a stator removal operation (step 102), but this step is not essential for magnet removal.

  Next, the pump side 201b separated in step 101 is fixed to the apparatus, the end plate is cut by the end plate cutter 202b (step 103), and the shaft 204 is pushed out by the shaft pushing mechanism 205, and the magnet-containing iron core 104a and the pump 104b are The shaft 204 is separated (step 104). Here, although the work of cutting the end plate (step 103) is written before the shaft is pushed out, this is not essential depending on the structure of the pump side 201b.

  Next, the magnetized iron core 104a is demagnetized (step 105). This method will be described later.

  Next, the magnet 106a is taken out from the demagnetized magnet-containing iron core 104a and separated from the iron core 106b (step 106).

By these steps, the magnet 106a can be taken out, and recycling of the magnet containing rare earth, which is a valuable resource, becomes easy. Further core 104 a, the stator 102a, case 102b, the separation of such a pump 203 enables separation, effective use is more properly and easily performed resources.

  FIG. 3 shows an overview of the magnet-containing iron core 104a. The magnet-containing iron core 104a is composed of an iron core 106b and a magnet 106a. Since the materials are different from each other, the magnet 106a cannot efficiently circulate resources as it is. Therefore, it is necessary to separate them from each other. ) And separation (step 106) are effective.

  An example of demagnetization (step 105) will be described with reference to FIG. The separated magnetized iron core 104 a is placed on the iron core fixing device 403, and the magnetized iron core 104 a is inserted into the magnetic field generating coil 402 by the vertical movement driving device 405. Here, by using the power supply 401 to generate an alternating magnetic field whose amplitude gradually decreases in the magnetic field generating coil 402 and applying it to the magnet-containing iron core 104a, the magnet 106a inserted in the iron core 106b can be demagnetized.

As another method of demagnetization, the magnet loses magnetic force when the magnet reaches a certain temperature, that is, by utilizing the demagnetization characteristic, only the iron core 104a with magnet is inserted into the high-frequency heating coil or electric furnace, The magnet 106a inserted into the iron core 106b can be demagnetized by heating by heating or radiation heating. As described above, the demagnetizing method shown in step 105 is not necessarily limited to these methods, and it is important to demagnetize the inserted magnet 106a. However, the most preferable method is to generate the first alternating magnetic field that can be demagnetized at room temperature and in a short time (about 10 seconds).

  Next, an example of a method (step 106) of taking out the magnet 106a from the magnet-containing iron core 104a will be described with reference to FIG.

  The demagnetized iron core 104a is placed on the iron core fixing device B502 so that the magnet 106a faces in the vertical direction, and is vibrated up and down by the vibration mechanism 501. As an excitation method, a general method such as using an eccentric cam may be used. Thereby, the magnet 106a can be separated from the iron core 106b. Another magnet extraction method will be described with reference to FIG. The demagnetized magnet-containing iron core 104a is placed on the iron core fixing device C603 so that the magnet 106a faces in the vertical direction, the magnet pushing mechanism 602 is aligned with the magnet 106a, and the magnet 106a is pushed out of the iron core 106b by the vertical driving mechanism 601. To separate the magnet 106a.

  By these methods, the compressor 201 can be separated into the magnet 106a, the iron core 106b, the pump side 104b, the stator 103b, and the cover 103b, and each member can be recycled more efficiently.

  As described above, the present invention has been specifically described based on the embodiment, but several kinds of individually described inventions can be used in combination. Moreover, it goes without saying that the present invention is not limited to the embodiments of the invention and can be modified without departing from the scope of the invention.

  In addition, the present process described with reference to FIGS. 1 and 2 explains the removal of the magnet 106a from the compressor 201. However, if the demagnetization and magnet removal processes shown in steps 105 and 106 are used, Needless to say, the present invention can be applied to motors other than the compressor 201.

101 Case cut 102 stator winding output 102a stator 102b case 103 end plate cut 104 pump extrusion 104a magnets containing iron core 104b pump 105 demagnetize 106 magnets extraction 106a magnets 106b core 201 compressor 201a stator side 201b pump side 202a circumferential cutter 202b endplate Cutter 203 Pump 204 Shaft 205 Shaft Extrusion Mechanism 401 Power Supply 402 Magnetic Field Generating Coil 403 Iron Core Fixing Device 404 Extrusion Shaft 405 Vertical Movement Drive Device 501 Excitation Mechanism 502 Iron Core Fixing Device B
601 Vertical drive mechanism 602 Magnet extrusion mechanism 603 Iron core fixing device C

Claims (7)

A compressor recycling method,
After cutting the compressor case with a cutter, separating the stator side and the pump side of the compressor, supporting the pump side, separating the iron core and the pump by a shaft extrusion mechanism, and further demagnetizing the iron core, A compressor recycling method for separating and recovering a compressor by member, wherein a magnet is taken out from the iron core. A method for recycling a compressor according to claim 1,
After separation of the casing to the pump side to the stator side, the stator present in the stator side by adding the task of separating the case, before Symbol member by the separation of the compressor, characterized in also retrieve the stator, Recycling method for the compressor to be recovered. A method for recycling a compressor according to claim 1 or 2,
After separating the stator side and the pump side, in the process of separating the pump side into the iron core and the pump, after performing a cutting process with a cutter on a part of the end plate,
A compressor recycling method for separating and recovering by compressor member, wherein the shaft and the pump are separated by the shaft pushing mechanism. A method of recycling compressor according to any one of claims 1 to 3,
In demagnetization of the magnet inserted in the iron core separated from the pump side,
Insert the iron core into the demagnetizing coil,
Generating an alternating magnetic field whose amplitude gradually decreases in the demagnetizing coil and applying it to the iron core;
A method of recycling a compressor for separating and recovering the compressor by member, wherein the magnet inserted in the iron core is demagnetized. A method of recycling compressor according to any one of claims 1 to 3,
In demagnetization of the magnet inserted in the iron core separated from the pump side,
Inserting only the iron core part into a high-frequency heating coil or electric furnace, heating the iron core by high-frequency heating or radiation heating,
A method for recycling a compressor for separating and recovering the compressor by member, wherein the magnet inserted in the iron core is demagnetized. A method of recycling compressor according to any one of claims 1 to 5,
In taking out the magnet inserted in the iron core,
After removing at least one end plate of the pair of end plates sandwiching the iron core in the axial direction and demagnetizing the iron core, the iron core is held while holding the iron core so that the removed surface faces downward in gravity. A compressor recycling method for separating and collecting the compressor by member, wherein the inserted magnet is removed by shaking. A method of recycling compressor according to any one of claims 1 to 5,
In taking out the magnet inserted in the iron core,
A pair of end plates sandwiching the iron core in the axial direction are cut and removed, and then the magnet inserted is pushed out while holding the iron core so that the taken-out surface is in the vertical direction of gravity. A method for recycling a compressor for separating and recovering a compressor by member, wherein the magnet is taken out.

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