CN109489131B - Magnetic ring fixing device, outdoor unit and air conditioner - Google Patents
Magnetic ring fixing device, outdoor unit and air conditioner Download PDFInfo
- Publication number
- CN109489131B CN109489131B CN201710811710.6A CN201710811710A CN109489131B CN 109489131 B CN109489131 B CN 109489131B CN 201710811710 A CN201710811710 A CN 201710811710A CN 109489131 B CN109489131 B CN 109489131B
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- CN
- China
- Prior art keywords
- magnetic ring
- fixing device
- limiting
- ring fixing
- groove
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/20—Electric components for separate outdoor units
- F24F1/22—Arrangement or mounting thereof
Abstract
The embodiment of the invention discloses a magnetic ring fixing device, an outdoor unit and an air conditioner. When the magnetic ring fixing device in the embodiment of the invention is used, the magnetic ring is firstly installed in the magnetic ring seat, then the whole magnetic ring fixing device is fixed on the electric box through the installation seat, and finally the power wire bypasses the magnetic ring fixing device and is circumferentially clamped on the wire clamping groove through the wire clamping groove. Therefore, the magnetic ring fixing device in the embodiment of the invention can fix the magnetic rings at the same time, limit the circumferential movement of the power line and reduce the contact of electronic components when the power line is wired. And the magnetic ring fixing device has two functions, so that the use of parts can be reduced.
Description
Technical Field
The invention relates to the technical field of electrical equipment, in particular to a magnetic ring fixing device, an outdoor unit and an air conditioner.
Background
In a controller component of an air conditioner outdoor unit, due to the change of a power supply signal, a circuit has many harmonic waves and interference signals, so that a power grid is damaged externally, the normal operation of the circuit is influenced, and the air conditioner is difficult to work normally. Aiming at the problem, on one hand, the power cord is wound around the magnetic ring, so that interference signals can be filtered, the signal reliability is improved, and on the other hand, the magnetic ring is fixed in the electric appliance box. Although the power cord bypasses the magnetic ring in the scheme, the power cord is not reliably fixed, so that the power cord can touch other electronic components.
Therefore, how to fix the magnetic ring and reduce the contact of the electronic components when the power line is routed simultaneously becomes a technical problem to be solved urgently by those skilled in the art.
Disclosure of Invention
In view of this, the present invention provides a magnetic ring fixing device, an outdoor unit and an air conditioner, and aims to solve the technical problem of how to fix a magnetic ring and reduce the number of electronic components touched when power lines are routed.
In order to achieve the purpose, the invention provides the following technical scheme:
a magnetic ring fixing device comprises a mounting seat used for being mounted on an electrical box, a magnetic ring seat used for fixing a magnetic ring, and a wire clamping groove used for clamping a power wire, wherein the wire clamping groove is formed in the magnetic ring seat or the mounting seat.
Preferably, in the magnetic ring fixing device, the mounting seat includes a limiting structure clamped in a gap of the electrical box and a fixing structure fixed on the electrical box.
Preferably, in the magnetic ring fixing device, the limiting structure includes a first limiting plate capable of extending into the gap and a supporting plate connecting the first limiting plate and the magnetic ring seat, and a limiting groove for clamping the plate around the gap is formed between the supporting plate and the first limiting plate.
Preferably, in the magnetic ring fixing device, a second limiting plate is further disposed between the first limiting plate and the magnetic ring seat, and the limiting groove is formed between the first limiting plate and the second limiting plate.
Preferably, in the magnetic ring fixing device, the distance between the first limiting plate and the second limiting plate at the notch gradually increases from inside to outside.
Preferably, in the magnetic ring fixing device, a reinforcing rib plate is further disposed between the second limiting plate and the magnetic ring seat.
Preferably, in the magnetic ring fixing device, the fixing structure includes a fixing plate extending in a vertical direction from the magnetic ring base, and the fixing plate can be fixed to the electrical box by a mounting fastener.
Preferably, in the magnetic ring fixing device, the fixing plate is further provided with a mounting protrusion fixed to a corresponding hole of the electrical box.
Preferably, in the above-described ring fixing device, the mounting projection is of a mushroom-head-shaped structure.
Preferably, in the magnetic ring fixing device, a plurality of limiting stop rods are arranged on a groove wall of the wire clamping groove in a staggered manner.
Preferably, in the above-mentioned magnetic ring fixing device, there are two of the wire clamping grooves, one is disposed on the mounting seat, and the other is disposed on the magnetic ring seat.
Preferably, in the above magnetic ring fixing device, the magnetic ring holder includes a magnetic ring fixing groove for mounting the magnetic ring, and a groove wall of the magnetic ring fixing groove is provided with a limiting portion for axially limiting the magnetic ring.
Preferably, in the above magnetic ring fixing device, a groove wall of the magnetic ring fixing groove includes a limit arm extending toward a notch of the magnetic ring fixing groove along a center line of the magnetic ring fixing groove, and the limit arm is provided with the limit portion protruding into the magnetic ring fixing groove.
Preferably, in the magnetic ring fixing device, the position limiting arm is formed by a pair of slits penetrating from a middle portion of the slot wall to an end portion of the slot wall along a center line of the magnetic ring fixing slot.
Preferably, in the above-mentioned magnetic ring fixing device, there are two limiting arms, and the two limiting arms are disposed oppositely.
Preferably, in the above-described magnetic ring fixing device, the number of the magnetic ring fixing grooves is two.
The invention also discloses an outdoor unit, which comprises a shell and an electrical box positioned in the shell, wherein the electrical box is internally provided with the magnetic ring fixing device.
Preferably, in the outdoor unit, the magnetic ring fixing device is disposed on a connection frame of the electric appliance box.
The invention also discloses an air conditioner which comprises the outdoor unit.
According to the technical scheme, when the magnetic ring fixing device in the embodiment of the invention is used, the magnetic ring is firstly installed in the magnetic ring seat, then the whole magnetic ring fixing device is fixed on the electric box through the installation seat, and finally the power line bypasses the magnetic ring fixing device and is circumferentially clamped on the wire clamping groove through the wire clamping groove. Therefore, the magnetic ring fixing device in the embodiment of the invention can fix the magnetic rings at the same time, limit the circumferential movement of the power line and reduce the contact of electronic components when the power line is wired. And the magnetic ring fixing device has two functions, so that the use of parts can be reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic perspective view of a magnetic ring fixing device according to an embodiment of the present invention;
fig. 2 is a schematic front view of a magnetic ring fixing device according to an embodiment of the present invention;
fig. 3 is a schematic side view of a magnetic ring fixing device according to an embodiment of the present invention;
fig. 4 is a schematic top view of a magnetic ring fixing device according to an embodiment of the present invention;
fig. 5 is a schematic perspective view illustrating a magnetic ring fixing device according to an embodiment of the present invention;
fig. 6 is a schematic perspective view of a magnetic ring installed on the magnetic ring fixing device according to the embodiment of the present invention;
fig. 7 is a schematic perspective view of the electrical box provided by the embodiment of the present invention after the magnetic ring fixing device is installed;
fig. 8 is a schematic front view of the electrical box provided by the embodiment of the present invention after the magnetic ring fixing device is installed;
fig. 9 is a schematic side view of the electrical box provided with the magnetic ring fixing device according to the embodiment of the present invention;
fig. 10 is a schematic perspective view of a magnetic ring fixing device and a power line for mounting an electrical box according to an embodiment of the present invention.
Wherein, 1 is an electrical box, 2 is a power cord, 11 is a wire holder, 100 is a magnetic ring seat, 101 is a magnetic ring fixing groove, 102 is a limit part, 1011 is a limit arm, 201 is a limit structure, 202 is a fixing structure, 2011 is a first limit plate, 2012 is a limit groove, 2012 is a second limit plate, 2014 is a reinforcing rib plate, 2021 is a fixing plate, 2022 is a hole, 2023 is an installation bulge, 2024 is a reinforcing rib, 300 is a wire clamping groove, 301 is a limit stop rod, and 400 is a magnetic ring.
Detailed Description
The invention discloses a magnetic ring fixing device, an outdoor unit and an air conditioner, which are used for simultaneously realizing the fixation of a magnetic ring and reducing the touch of electronic components when power lines are wired.
Hereinafter, embodiments will be described with reference to the drawings. The embodiments described below do not limit the contents of the invention described in the claims. The entire contents of the configurations shown in the following embodiments are not limited to those required as solutions of the inventions described in the claims.
Referring to fig. 1 to 10, the magnetic ring fixing device in the embodiment of the present invention includes a mounting seat for mounting on an electrical box 1, a magnetic ring seat 100 for fixing a magnetic ring 400, and a wire clamping groove 300 for clamping a power wire 2, where the wire clamping groove 300 is disposed on the magnetic ring seat or the mounting seat.
When the magnetic ring fixing device in the embodiment of the invention is used, the magnetic ring 400 is firstly installed in the magnetic ring seat 100, then the whole magnetic ring fixing device is fixed on the electrical box 1 through the installation seat, and finally the power wire 2 bypasses the magnetic ring fixing device and is circumferentially clamped on the wire clamping groove 300 through the wire clamping groove 300. Therefore, the magnetic ring fixing device in the embodiment of the invention can fix the magnetic ring 400 at the same time, limit the circumferential movement of the power line 2 and reduce the touch of electronic components when the power line 2 is wired. And the magnetic ring fixing device has two functions, so that the use of parts can be reduced.
The connection mode of the mounting base and the electrical box 1 can be fastener connection, buckle connection or combination of several connection modes. The mounting base in the embodiment of the invention comprises a limiting structure 201 clamped in a gap of the electrical box 1 and a fixing structure 202 fixed on the electrical box 1. During the use, magnetic ring 400 is installed in magnetic ring seat 100, then limit structure 201 card is in the gap of electrical apparatus box 1, and limit structure 201 is spacing back, fixes the mount pad on electrical apparatus box 1 through fixed knot structure 202.
First limiting plate 2011 stretches into the inboard of panel around the gap through the gap on the electrical apparatus box 1, blocks on the panel through spacing groove 2012 to realize limit structure 201's spacing.
The limiting groove 2012 is formed by the first limiting plate 2011 and the magnetic ring seat 100, or the limiting groove 2012 is formed by the limiting structure 201 itself. A second limiting plate 2013 is further arranged between the first limiting plate 2011 and the magnetic ring seat 100, and a limiting groove 2012 is formed between the first limiting plate 2011 and the second limiting plate 2013.
For convenience of installation, the distance between the first limiting plate 2011 and the second limiting plate 2013 at the notch is gradually increased from inside to outside, that is, the notch of the limiting groove 2012 is in a bell mouth shape. Specifically, the first limit plate 2011 is bent towards the inner side of the gap at the notch, or the second limit plate 2013 is bent towards the outer side of the gap at the notch. The inner side is a side of the plate material corresponding to the direction in which the first stopper plate 2011 extends, and the outer side is opposite to the inner side.
In order to improve the strength, a reinforcing rib plate 2014 is further arranged between the second limit plate 2013 and the magnetic ring seat 100.
The securing structure 202 may be a fastener mount, a snap mount, or a combination of both. The fixing structure 202 of the embodiment of the present invention includes a fixing plate 2021 extending from the magnetic ring base 100 in a vertical direction, and the fixing plate 2021 can be fixed on the electrical box 1 by a mounting fastener. In the embodiment of the present invention, the fixing plate 2021 extends in a vertical direction, and can be adjusted according to the specific position of the magnetic ring fixing device installed on the electrical box 1. The fastener can be a screw or a bolt. In order to improve the accuracy of screw or bolt installation, a hole is usually drilled after the position limiting structure 201 is installed, and a fastener is installed through the hole to achieve installation of the fixing structure 202. In order to enhance the strength of the fixing plate 2021, a reinforcing rib 2024 is further disposed at a connection portion of the fixing plate 2021 and the magnetic ring base 100.
In order to further improve the stability of the fixing structure 202, the fixing plate 2021 is further provided with a mounting protrusion 2023 fixed to a corresponding hole of the electrical box 1. The mounting protrusion 2023 is clamped in the corresponding hole 2022 of the electrical box 1 by a structure thereof, specifically, the mounting protrusion 2023 has a deformation function, when mounted in the hole 2022, the periphery of the mounting protrusion 2023 is contracted toward the middle part, and when coming out of the hole, the mounting protrusion is restored to an original state, thereby achieving the purpose of being clamped in the hole. The shape of the mounting protrusion 2023 may be regular like a sphere, a cone, etc., or irregular, and the mounting protrusion 2023 is a mushroom head structure in the present invention.
In the embodiment of the present invention, the power line 2 is clamped by the slot-clamping slot 300 to limit the circumferential movement of the power line 2 without affecting the axial movement of the power line 2, and therefore, a plurality of limiting stop rods 301 are staggered on the slot wall of the slot-clamping slot 300. When the power line 2 is routed, the power line sequentially penetrates through gaps between the limiting stop rods 301 and is finally clamped in the wire clamping groove 300 under the action of the limiting stop rods 301. One end of the limiting stop lever 301 is fixed on the slot wall of the wire clamping slot 300, and the other end is suspended, so that the limiting stop lever has certain deformation capability. Therefore, in the embodiment of the present invention, an end of the limiting stopper 301 away from the slot wall of the slot-locking slot 300 is inclined toward the slot bottom of the slot-locking slot 300. When the limiting stop lever 301 with the structure is adopted, the power line 2 can be quickly installed in the wire clamping groove 300 when being wired, and cannot be easily pulled out of the wire clamping groove 300 when being subjected to reverse pulling-out force.
In order to make the routing more stable, there are two wire clamping slots 300, one is disposed on the mounting seat, and the other is disposed on the magnetic ring seat 100.
The magnetic ring seat 100 is used for fixing the magnetic ring 400, the magnetic ring seat 100 comprises a magnetic ring fixing groove 101 for mounting the magnetic ring 400, and a limiting part 102 for limiting the axial direction of the magnetic ring 400 is arranged on the groove wall of the magnetic ring fixing groove 101. When the magnetic ring fixing device is used, the magnetic ring 400 is arranged in the magnetic ring fixing groove 101, the axial movement of the magnetic ring 400 is limited under the constraint of the limiting part 102, and the magnetic ring 400 can be effectively fixed under the dual functions of the magnetic ring fixing groove 101 and the limiting part 102. The number of the magnetic ring fixing grooves 101 may be one or more, and the number of the magnetic ring fixing grooves 101 is two in the figure.
The magnetic ring 400 can be fixed by a fastener or a buckle, wherein the buckle is fixed by the fastener, and the purposes of convenient operation and rapid operation can be achieved on the premise of meeting the reliability requirement compared with the fastener fixing.
Specifically, the groove wall of the magnetic ring fixing groove 101 comprises a limiting arm 1011 extending towards the notch of the magnetic ring fixing groove 101 along the central line of the magnetic ring fixing groove 101, and a limiting part 102 protruding inwards towards the magnetic ring fixing groove 101 is arranged on the limiting arm 1011, so that in the process of installing the magnetic ring 400, the limiting part 102 is subjected to a force pointing to the bottom of the magnetic ring fixing groove 101, the limiting part 102 drives the limiting arm 1011 to bend outwards, so that the magnetic ring 400 is installed in the magnetic ring fixing groove 101, when the magnetic ring 400 is separated from the limiting part 102, the limiting part 102 is free from an external force, and the limiting arm 1011 is restored to an original state under the action of self elastic force, so that the limiting part 102 can block the.
For the convenience of processing, the position limiting arm 1011 is formed by a pair of slots penetrating from the middle of the slot wall to the end of the slot wall along the center line of the magnetic ring fixing slot 101. In order to reliably fix the magnetic ring 400, the number of the limiting arms 1011 can be one or more, in the figure, the number of the limiting arms 1011 is two, and the two limiting arms 1011 are arranged oppositely; of course, the two limiting arms 1011 are not required to be arranged in pairs. The number of the stopper arms 1011 is not limited to two, but may be three, four, etc.
The invention also discloses an outdoor unit, which comprises a shell and an electrical box 1 positioned in the shell, wherein the electrical box 1 is internally provided with any one of the magnetic ring fixing devices. Since the magnetic ring fixing device has the above effects, the outdoor unit including the magnetic ring fixing device also has corresponding effects, which are not described herein again.
The magnetic ring fixing device is arranged on the wiring frame 11 of the electrical box 1. The terminal block 11 has slots and holes for mounting magnetic ring fixtures.
Because the mainboard of the electrical box 1 relates to modules such as a power supply, a fan and the like, more power lines 2 exist. The power cord 2 is longer probably collided with other components and parts, has the potential safety hazard, and walks the line in a jumble, is provided with card wire casing 300 on the magnetic ring fixing device, can walk the line through crossing the wire casing with fan line, power supply line 2, bottom wire etc. and fix, and reducible potential safety hazard is walked the line aesthetic property and is improved, and it is convenient to arrange each power cord 2 in order simultaneously in the production process, improves production efficiency.
The invention also discloses an air conditioner which comprises the outdoor unit. Since the outdoor unit has the above effects, an air conditioner including the outdoor unit also has corresponding effects, which are not described herein again.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (16)
1. A magnetic ring fixing device comprises a mounting seat for mounting on an electrical box (1) and a magnetic ring seat (100) for fixing a magnetic ring (400), and is characterized by further comprising a wire clamping groove (300) for clamping a power wire (2), wherein the wire clamping groove (300) is arranged on the magnetic ring seat (100) or the mounting seat; the mounting seat comprises a limiting structure (201) clamped in a gap of the electric appliance box (1) and a fixing structure (202) fixed on the electric appliance box (1); limiting structure (201) including can stretching into extremely first limiting plate (2011) in gap, connect first limiting plate (2011) with the backup pad of magnetic ring seat (100) with be located first limiting plate (2011) with second limiting plate (2013) between magnetic ring seat (100), the backup pad with it blocks to have between first limiting plate (2011) spacing groove (2012) of the peripheral panel in gap, first limiting plate (2011) with form between second limiting plate (2013) spacing groove (2012), first limiting plate (2011) with second limiting plate (2013) grow gradually from inside to outside at the distance of notch department.
2. The magnet ring fixing device as claimed in claim 1, wherein a stiffener plate (2014) is further disposed between the second limiting plate (2013) and the magnet ring seat (100).
3. The magnetic ring fixing device as claimed in claim 1, characterized in that the fixing structure (202) comprises a fixing plate (2021) extending in a vertical direction from the magnetic ring base (100), and the fixing plate (2021) can be fixed on the electrical box (1) by mounting fasteners.
4. A magnetic ring fixing device as claimed in claim 3, characterized in that the fixing plate (2021) is further provided with a mounting protrusion (2023) fixed to a corresponding hole on the electrical box (1).
5. The magnetic ring fixture device as claimed in claim 4, characterized in that the mounting protrusion (2023) is of mushroom-head-shaped structure.
6. The magnetic ring fixing device as claimed in claim 1, wherein a plurality of position-limiting stop rods (301) are alternately disposed on the slot wall of the slot-locking slot (300).
7. The magnetic ring fixing device as claimed in claim 6, wherein an end of the stopper rod (301) away from the slot wall of the slot-locking slot (300) is inclined toward the slot bottom of the slot-locking slot (300).
8. The magnetic ring fixing device as claimed in claim 6, wherein there are two of the wire clamping slots (300), one is disposed on the mounting seat and the other is disposed on the magnetic ring seat (100).
9. The magnet ring fixing device as claimed in claim 1, wherein the magnet ring seat (100) comprises a magnet ring fixing groove (101) for mounting the magnet ring, and a groove wall of the magnet ring fixing groove (101) is provided with a limiting portion (102) for axially limiting the magnet ring.
10. The magnet ring fixing device as claimed in claim 9, characterized in that the groove wall of the magnet ring fixing groove (101) comprises a limiting arm extending along the center line of the magnet ring fixing groove (101) toward the notch of the magnet ring fixing groove (101), and the limiting arm is provided with a limiting portion (102) protruding into the magnet ring fixing groove (101).
11. The magnet ring fixture device as claimed in claim 10, wherein said position-limiting arm is formed by a pair of slots penetrating from a middle portion of said slot wall to an end portion of said slot wall along a center line of said magnet ring fixture groove (101).
12. The magnetic ring fixing device as claimed in claim 11, wherein there are two of said position-limiting arms, and the two position-limiting arms are disposed opposite to each other.
13. A magnet ring fixture device as claimed in claim 9, characterised in that the number of said magnet ring fixture slots (101) is two.
14. An outdoor unit comprising a casing and an electrical box (1) located inside the casing, wherein the electrical box (1) is provided with a magnetic ring fixing device as claimed in any one of claims 1 to 13.
15. Outdoor unit according to claim 14, characterized in that the magnetic ring fixing means are arranged on the connection bracket (11) of the appliance casing (1).
16. An air conditioner, comprising the outdoor unit of any one of claims 14 to 15.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710811710.6A CN109489131B (en) | 2017-09-11 | 2017-09-11 | Magnetic ring fixing device, outdoor unit and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710811710.6A CN109489131B (en) | 2017-09-11 | 2017-09-11 | Magnetic ring fixing device, outdoor unit and air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109489131A CN109489131A (en) | 2019-03-19 |
| CN109489131B true CN109489131B (en) | 2021-03-23 |
Family
ID=65687444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710811710.6A Expired - Fee Related CN109489131B (en) | 2017-09-11 | 2017-09-11 | Magnetic ring fixing device, outdoor unit and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109489131B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209964436U (en) * | 2019-03-20 | 2020-01-17 | 宁波奥克斯电气股份有限公司 | Magnetic ring fixing device, electric control box and air conditioner |
| CN112254226A (en) * | 2020-11-10 | 2021-01-22 | 青岛海尔空调器有限总公司 | Cable support, magnetic ring fixing device and air condensing units |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011254077A (en) * | 2010-05-07 | 2011-12-15 | Yoshitaka Otomo | Electromagnetic wave prevention storage container and its utilization method |
| CN103379810B (en) * | 2012-04-17 | 2017-02-08 | 珠海格力电器股份有限公司 | Magnetic ring fixing device, and air-conditioning outdoor unit having same |
| KR102131255B1 (en) * | 2013-09-16 | 2020-07-07 | 엘지전자 주식회사 | A controlbox of out-door unit for air conditioner |
| CN104853556B (en) * | 2014-02-13 | 2018-03-06 | 珠海格力电器股份有限公司 | Magnet ring fixing device and the outdoor machine of air-conditioner with the fixing device |
| CN207438771U (en) * | 2017-09-29 | 2018-06-01 | 珠海格力电器股份有限公司 | A kind of magnet ring fixing structure and air-conditioner outdoor unit |
-
2017
- 2017-09-11 CN CN201710811710.6A patent/CN109489131B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN109489131A (en) | 2019-03-19 |
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