CN215990351U - Vehicle-mounted small refrigerator compressor motor - Google Patents
Vehicle-mounted small refrigerator compressor motor Download PDFInfo
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- CN215990351U CN215990351U CN202122181665.5U CN202122181665U CN215990351U CN 215990351 U CN215990351 U CN 215990351U CN 202122181665 U CN202122181665 U CN 202122181665U CN 215990351 U CN215990351 U CN 215990351U
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Abstract
The utility model discloses a vehicle-mounted small-sized refrigerator compressor motor, which comprises a stator core and a rotor, wherein the rotor consists of a rotor core, magnetic steel inserted in a magnetic steel groove of the rotor core and an end cover fixed on the end surface of the rotor core, the rotor core is provided with a step center hole, the rotor core is formed by connecting a rotor core main body section provided with the step center hole and a large hole thereof and a rotor core auxiliary section provided with the step center hole and a small hole thereof, the magnetic steel groove is arranged on the rotor core main body section, the magnetic steel groove is in a blind groove hole shape, and the depth of the magnetic steel groove is equal to the stacking height of the stator core. The rotor core of the utility model is provided with the rotor core body section with the formed big hole for inserting and matching the magnetic steel and the rotor core auxiliary section with the formed small hole, so that the rotor core body section and the stator core are matched in the aspect of height superposition and thinning, the condition is created, the compressor motor meets the economic requirement of small discharge capacity of a vehicle-mounted small refrigerator, the cost is low, and the magnetic field utilization rate of the magnetic steel is high.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to a vehicle-mounted small refrigerator compressor motor, and belongs to the technical field of vehicle-mounted small refrigerator compressor motors.
[ background of the utility model ]
The discharge capacity of a common vehicle-mounted small refrigerator compressor is 1.2-2.0 CC, the motor is arranged on the existing vehicle-mounted small refrigerator compressor, the stacking height of a stator core and a rotor core is 25mm, and because a step center hole and a through groove for inserting and matching magnetic steel are required to be respectively formed in the rotor core, the 25mm is the minimum limit stacking height of the rotor core, however, the motor of the stacking height compressor can be applied to 3.5CC discharge capacity to the maximum extent, and the motor of the stator core and the rotor core which are stacked to reach 25mm wastes redundant rated output power. If the stack height of the stator and rotor cores is to be reduced synchronously, the length of the shaft sleeve of the cylinder block needs to be shortened correspondingly, the shortened shaft sleeve can influence the oil pumping effect of an oil pumping device of the compressor, and further effective lubrication and cooling of a crankshaft, a bearing and a connecting rod are directly influenced.
The specific structure of the compressor motor is as follows:
the rotor consists of a rotor core, ten pieces of magnetic steel, two end covers with ten through holes and ten rivets, wherein the rotor core is axially provided with a step center hole, ten magnetic steel through grooves and ten through holes for the rivets.
The rotor assembly is firstly carried out in series, specifically, after one end cover is attached to one end face of a rotor iron core, ten pieces of magnetic steel are inserted into corresponding magnetic steel through grooves one by one, ten rivets penetrate through one end cover, the open ends of the rivets sequentially penetrate through one end cover and the rotor iron core, the other end cover is placed, the open ends of the rivets are exposed on the outer surface of the other end cover, and the heads of the ten rivets are correspondingly positioned on the outer surface of one end cover; then riveting: and (4) mounting the serially-mounted rotors on a special riveting device in a mode that the heads of the rivets face downwards for operation, and obtaining a finished rotor product after riveting.
The stator and rotor assembly is to assemble the formed rotor into an inner hole of a stator, so that two end faces of the stator core are flush with corresponding end faces of the rotor core and the magnetic steel respectively, finally, the stator and the rotor are fixed on a compressor, one end face (mounting end face) of the stator core is attached to a mounting foot of an air cylinder seat of the compressor, the stator core is screwed and fixed on the mounting foot through a bolt penetrating through the stator, a step center hole of the rotor core is sleeved on a crankshaft of the compressor, a transition step of the step center hole is abutted against an axle sleeve end face of the air cylinder seat, and the mounting end face of the stator core is flush with the corresponding end face of the rotor core.
Because the magnetic steel through groove axially penetrates through the whole rotor core, the compressor motor can fix the magnetic steel in the rotor core only by two end covers.
Because the compressor motor is designed according to the upper limit discharge capacity of 3.5CC, how to develop a vehicle-mounted small refrigerator compressor motor which is suitable for the discharge capacity of 1.2-2.0 CC to adapt to the economic requirement of small discharge capacity is really necessary today when advocating energy-saving economic sustainable development.
[ Utility model ] content
The utility model aims to solve the technical problem of the prior art and provides a vehicle-mounted small refrigerator compressor motor.
Therefore, the utility model provides the following technical scheme:
the utility model provides an on-vehicle small-size refrigerator compressor motor that uses, including stator core, fix stator skeleton, the coiling of stator core two ends with stator winding on the stator skeleton and install the rotor in the stator core hole, the rotor comprises rotor core, the magnet steel of joining in marriage in its magnet steel groove of rotor core and the end cover of fixed connection at its terminal surface of rotor core, and the step centre bore has been seted up to rotor core, and its improvement point lies in: the rotor core is formed by fixedly connecting a rotor core main body section for forming a large hole with a step center hole and a rotor core auxiliary section for forming a small hole with a step center hole, the magnetic steel groove is arranged in the rotor core main body section and is in a blind groove hole shape, and the depth of the magnetic steel groove is equal to the stacking height of the stator core.
Only one end cover is riveted on the end face of the rotor core main body section through a rivet.
Compared with the prior art, the magnetic steel groove is in a blind groove hole shape, so that the manufacturing cost and the installation cost of one end cover can be saved.
The stack height of the stator core is 10-18 mm, and the total height of the rotor core is 20-25 mm.
Preferably, the rotor core main body section and the rotor core auxiliary section are laminated and riveted into a whole by the rotor punching sheets.
The rotor core auxiliary section and the rotor core body section are both made of rotor punching sheets, and can be formed by self-riveting after being stacked by the same materials, so that the processing steps can be simplified, and the processing time cost can be saved.
Preferably, the main rotor core segment is formed by stacking and riveting rotor punching sheets, the auxiliary rotor core segment is a non-magnetic light metal body, and the two segments are separately configured and riveted by rivets.
The rotor core auxiliary section adopts a light metal body, and the cost of the rotor core auxiliary section is lower than that of a silicon steel rotor punching sheet, so that the using amount of the silicon steel material of the whole rotor core can be reduced, the cost is further saved, and the whole weight of the rotor core is reduced.
Preferably, the main body section of the rotor core is formed by laminating and riveting rotor punching sheets, the auxiliary section of the rotor core is a non-magnetic light nonmetal body, and the two sections are separately configured and riveted through rivets.
The rotor core auxiliary section adopts a light nonmetal body, and the cost of the rotor core auxiliary section is lower than that of a silicon steel rotor punching sheet, so that the using amount of the silicon steel material of the whole rotor core can be reduced, the cost is further saved, and the whole self weight of the rotor core is reduced.
The motor is an aluminum wire motor or a copper wire motor.
When the compressor motor is an aluminum wire motor, the cost can be further reduced, and the market competitiveness is improved.
The utility model has the following advantages and positive effects:
because the rotor core of the utility model has the rotor core body section which is provided with the formed big hole and is inserted and matched with the magnetic steel, and the rotor core auxiliary section which is provided with the step center hole and the small hole, the utility model not only ensures that the rotor core body section is matched with the stator core in the aspect of stacking height and thinning, thereby creating conditions, the power output of the compressor motor meets the economic requirement of small displacement of 1.2-2.0 CC vehicle-mounted small refrigerator, the cost is low, the transition step formed by combining the big hole and the small hole also meets the assembly requirement of the rotor core and the compressor cylinder seat (namely the transition step can be supported and matched with the shaft sleeve end surface of the cylinder seat), the shaft sleeve does not need to be shortened, and because the design of the rotor core body section can meet the height of the magnetic steel (namely the depth of the magnetic steel groove) which is equivalent to the stacking height of the stator core, the magnetic field utilization rate of the magnetic steel is high, compared with the prior art, the utility model has certain practical popularization significance.
[ description of the drawings ]
FIG. 1 is a perspective view of a compressor motor of a small refrigerator for vehicle use according to the present invention;
FIG. 2 is a plan view of the present invention;
FIG. 3 is a sectional view A-A of FIG. 2;
FIG. 4 is a perspective view of a rotor core of the present invention;
FIG. 5 is a plan view of a rotor core of the present invention;
fig. 6 is a sectional view B-B in fig. 5.
[ detailed description ] embodiments
Referring to fig. 1 to 6, a vehicle-mounted small-sized refrigerator compressor motor includes a stator core 2, stator frames 21 fixed at two ends of the stator core, a stator winding 22 wound around the stator core and the stator frames, and a rotor installed in an inner hole of the stator core 2, wherein the rotor includes a rotor core 1, a magnetic steel 3 inserted into a magnetic steel groove 111 of the rotor core 1, and an end cover 4 fixedly connected to an end face of the rotor core 1, and the rotor core 1 is provided with a stepped central hole 10.
The stator core 2 has a mounting end face 20 which is contacted with a mounting leg 61 (3) of the cylinder block during fixing; when the rotor core 1 is fitted into the inner bore of the stator core 2, the end face 11' (see fig. 1) is flush with the fitting end face 20 of the stator core 2; the transition step 10-1 of the step center hole 10 penetrates through one end of the crankshaft 7 and is abutted against the end face of a shaft sleeve 62 of the cylinder seat, and the shaft sleeve 62 is sleeved on the crankshaft 7 in an empty mode and is in oil seal with the crankshaft 7.
The rotor core 1 is formed by fixedly connecting a rotor core main body section 11 and a rotor core auxiliary section 12, a large hole 110 of a step center hole 10 is formed in the rotor core main body section 11, a small hole 120 of the step center hole 10 is formed in the rotor core auxiliary section 12, a magnetic steel groove 111 is formed in the rotor core main body section 11, a transition step 10-1 is formed after the rotor core main body section 11 and the rotor core auxiliary section 12 are fixedly connected, the magnetic steel groove 111 is formed in a blind groove hole shape, and the depth of the magnetic steel groove 111 is equal to the stacking height of the stator core 2.
The height of the magnetic steel 3 is equal to the depth of the magnetic steel groove 111 and the stacking height of the stator core 2, or the height of the magnetic steel 3 is slightly lower than the depth of the magnetic steel groove 111, so that the magnetic steel 3 cannot be damaged by pressure after the end cover 4 is fixed.
Claims (7)
1. The utility model provides an on-vehicle small-size refrigerator compressor motor that uses, including stator core, fix stator skeleton, the coiling of stator core two ends with stator winding on the stator skeleton and install the rotor in the stator core hole, the rotor comprises rotor core, the magnet steel of joining in marriage in its magnet steel groove of rotor core and the end cover of fixed connection at its terminal surface of rotor core, and step centre bore, its characterized in that have been seted up to rotor core: the rotor core is formed by fixedly connecting a rotor core main body section for forming a large hole with a step center hole and a rotor core auxiliary section for forming a small hole with a step center hole, the magnetic steel groove is arranged in the rotor core main body section and is in a blind groove hole shape, and the depth of the magnetic steel groove is equal to the stacking height of the stator core.
2. The vehicular small-sized refrigerator compressor motor according to claim 1, characterized in that: only one end cover is riveted on the end face of the rotor core main body section through a rivet.
3. The vehicular small-sized refrigerator compressor motor according to claim 2, characterized in that: the stack height of the stator core is 10-18 mm, and the total height of the rotor core is 20-25 mm.
4. The vehicular small-sized refrigerator compressor motor according to claim 1, 2 or 3, characterized in that: the rotor core main body section and the rotor core auxiliary section are laminated and riveted into a whole by the rotor punching sheets.
5. The vehicular small-sized refrigerator compressor motor according to claim 1, 2 or 3, characterized in that: the rotor core main body section is formed by laminating and riveting rotor punching sheets, the rotor core auxiliary section is a non-magnetic light metal body, and the two sections are in split configuration and are riveted through rivets.
6. The vehicular small-sized refrigerator compressor motor according to claim 1, 2 or 3, characterized in that: the rotor core main body section is formed by laminating and riveting rotor punching sheets, the rotor core auxiliary section is a non-magnetic light nonmetal body, and the two sections are in split configuration and are riveted through rivets.
7. The vehicular small-sized refrigerator compressor motor according to claim 1, 2 or 3, characterized in that: the motor is an aluminum wire motor or a copper wire motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122181665.5U CN215990351U (en) | 2021-09-04 | 2021-09-04 | Vehicle-mounted small refrigerator compressor motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122181665.5U CN215990351U (en) | 2021-09-04 | 2021-09-04 | Vehicle-mounted small refrigerator compressor motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215990351U true CN215990351U (en) | 2022-03-08 |
Family
ID=80468411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122181665.5U Active CN215990351U (en) | 2021-09-04 | 2021-09-04 | Vehicle-mounted small refrigerator compressor motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215990351U (en) |
-
2021
- 2021-09-04 CN CN202122181665.5U patent/CN215990351U/en active Active
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