CN110365153B - Junction box assembly, motor and electric appliance - Google Patents
Junction box assembly, motor and electric appliance Download PDFInfo
- Publication number
- CN110365153B CN110365153B CN201910771833.0A CN201910771833A CN110365153B CN 110365153 B CN110365153 B CN 110365153B CN 201910771833 A CN201910771833 A CN 201910771833A CN 110365153 B CN110365153 B CN 110365153B
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- junction box
- hole
- mounting structure
- mounting
- base body
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/08—Distribution boxes; Connection or junction boxes
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
- H02K5/225—Terminal boxes or connection arrangements
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Connection Or Junction Boxes (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention relates to the field of motors, and discloses a junction box assembly which comprises a base body, a junction box, a sealing ring and a junction box, wherein the junction box and the junction box are fixed on the base body, the sealing ring is extruded between the junction box and the base body, the junction box is positioned in a box cavity of the junction box, a first junction hole is formed in the base body, a second junction hole is formed in the junction box, and the first junction hole is in butt joint with the second junction hole along a first direction; the base body is also provided with a first mounting structure positioned in the first wiring hole, and the wiring base, the second mounting structure and the first mounting structure are sequentially distributed along a first direction; the junction box is also provided with a second mounting structure positioned in the second wiring hole, the wiring base is connected with the first mounting structure through a connecting piece along the first direction, the junction box is abutted against the wiring base, and the junction box is extruded between the wiring base and the base body. This technical scheme is favorable to reducing the quantity of connecting piece in the terminal box subassembly, is favorable to simplifying the cooperation installation of each spare part in the terminal box subassembly, promotes the production efficiency of terminal box subassembly.
Description
Technical Field
The invention relates to the field of motors, in particular to a junction box assembly, a motor and an electric appliance.
Background
When an existing motor shell, a junction box and a junction box are installed, the junction box is usually fixedly connected into the junction box by screws, and then the junction box is fixed on the motor shell by the screws.
The junction box and the motor shell are connected through at least two screws, the junction box and the wire holder are connected through at least two screws, at least four screws are required to be connected among the junction box, the wire holder and the motor shell in the fixing mode, the using amount of the screws is large, and therefore not only is the connection structure among the motor shell, the junction box and the wire holder complex, but also the installation process is complex, and the installation efficiency is low.
Disclosure of Invention
An object of the present invention is to provide a junction box assembly having a simple connection structure and a simple and convenient installation process.
In order to achieve the purpose, the junction box assembly provided by the invention comprises a base body, a junction box, a sealing ring and a junction box, wherein the junction box and the junction box are fixed on the base body, the sealing ring is extruded between the junction box and the base body, the junction box is positioned in a box cavity of the junction box, a first wiring hole is formed in the base body, a second wiring hole is formed in the junction box, and the first wiring hole is in butt joint with the second wiring hole along a first direction; the base body is also provided with a first mounting structure, the first mounting structure is positioned in the first wiring hole, and the wiring base, the second mounting structure and the first mounting structure are sequentially distributed along a first direction; the junction box is also provided with a second mounting structure, the second mounting structure is positioned in a second wiring hole, the wiring base is connected with the first mounting structure through a connecting piece along a first direction, the junction box is abutted against the wiring base, and the junction box is extruded between the wiring base and the base body.
Therefore, through the structural design of the junction box assembly, the junction box is extruded between the junction box and the base body while the junction box is connected with the first mounting structure, so that the fixed connection of the junction box, the junction box and the base body is realized, the technical scheme can adopt the same group of connecting pieces to realize the fixed connection of the junction box, the junction box and the base body, is favorable for reducing the using amount of the connecting pieces in the junction box assembly, is favorable for improving the economy of the junction box assembly, is favorable for simplifying the matching mounting process of each part in the junction box assembly, and is favorable for improving the production efficiency of the junction box assembly; in addition, the first mounting structure is located in the first wiring hole, the second mounting structure is located in the second wiring hole, and therefore the connection position of the wiring base and the second mounting structure is located in the middle of the wiring hole, stability and reliability of connection among the wiring base, the junction box and the base body are improved, the wiring base is distributed in the middle of the wiring box, and follow-up wiring operation is facilitated.
One preferable scheme is that the second mounting structure is provided with a mounting slot hole, the mounting slot hole is a mounting hole penetrating through the second mounting structure along the first direction or the mounting slot hole is a mounting groove with an opening back to the first mounting structure; the wire holder is provided with a mounting convex part facing the first mounting structure, and the mounting convex part is mounted in the mounting groove hole.
Therefore, the matching of the mounting convex part and the mounting groove hole is beneficial to realizing the positioning of the junction box and the wire holder, and the matching mounting difficulty of the junction box and the wire holder is convenient to reduce.
The included angle between the side wall surface of the mounting convex part and the first direction is an acute angle, and the included angle between the side wall surface of the mounting groove hole and the first direction is an acute angle; the cross-sectional size of the mounting convex part is gradually increased and the cross-sectional size of the mounting groove hole is gradually increased from the side close to the first mounting structure to the side far away from the first mounting structure along the first direction.
Therefore, on one hand, the difficulty of inserting the installation convex part into the installation groove hole is reduced, the installation difficulty of matching the wire holder and the junction box is reduced, on the other hand, the limit of the wire holder can be realized through the butting of the side wall surface of the installation groove hole and the side wall surface of the installation convex part in the first direction, and the fixed connection of the wire holder, the junction box and the base body is realized.
The further scheme is that the cross section of the mounting groove hole is in a shape of a rounded rectangle and the cross section of the mounting convex part is in a shape of a rounded rectangle along the first direction.
The further scheme is that the wire holder is connected with the first mounting structure through screws, and the screws penetrate through the wire holder and the junction box and then are in threaded connection with the first mounting structure.
Another preferred scheme is that the first mounting structure is a strip structure, the second mounting structure is a strip structure, the first mounting structure divides the first wiring hole into two hole regions, the second mounting structure divides the second wiring hole into two hole regions, and the hole regions of the first wiring hole and the hole regions of the second wiring hole are in one-to-one corresponding butt joint.
Therefore, the two end parts of the first mounting structure are connected with the hole wall of the first wiring hole, and the two end parts of the second mounting structure are connected with the hole wall of the second wiring hole; the fixed connection of base body terminal box and wire holder is realized through being connected of first mounting structure, second mounting structure and wire holder more to be favorable to promoting base body, terminal box and wire holder fixed connection's reliability.
In another preferred scheme, a first groove which is recessed towards the junction box is arranged on the base body, and a first wiring hole is formed in the bottom surface of the first groove; the junction box is provided with a first boss protruding towards the base body, and the second wiring hole is formed in the top surface of the first boss; the first boss is embedded in the first groove.
Therefore, the arrangement of the first boss and the first groove is beneficial to realizing the installation and positioning of the junction box and the base body, and the difficulty in installation and matching of the junction box and the base body is reduced.
The first step surface is arranged on the base body, the first groove is arranged on the first step surface, an annular groove is formed in the intersection of the first step surface and the side wall surface of the first groove, the annular groove extends around the first boss in a circle, and the sealing ring is embedded in the annular groove.
Therefore, when the sealing ring, the junction box and the base body are installed in a matched mode, the sealing ring is firstly sleeved on the first boss, then the first boss is inserted into the first groove, the sealing ring moves into the annular groove along with the first boss, and therefore the sealing ring does not need to be installed in a matched mode with the annular groove, the assembling process of the junction box assembly is facilitated to be simplified, and the production efficiency of the junction box assembly is facilitated to be improved; the annular groove does not mean that the extending track of the groove is circular, but means that the annular groove circles around the first boss.
The base body is provided with a second boss protruding towards the junction box, and the first wiring hole is formed in the top surface of the second boss; the junction box is provided with a second groove which is concave back to the base body, the second wiring hole is formed in the bottom surface of the second groove, and the second boss is embedded in the second groove.
The second purpose of the invention is to provide a motor with simple connection structure and simple installation process.
In order to achieve the above object, the present invention provides a motor including the aforementioned junction box assembly, wherein the base body is a motor housing.
It is from top to bottom, owing to adopt aforementioned terminal box subassembly, be favorable to reducing the quantity of connecting piece in the terminal box subassembly, be favorable to promoting the economic nature of terminal box subassembly to be favorable to simplifying the cooperation installation process of each spare part in the terminal box subassembly, be favorable to promoting the production efficiency of terminal box subassembly.
The invention also aims to provide an electric appliance with simple connection structure and simple and convenient installation process.
In order to achieve the above object, the present invention provides an electric appliance including the aforementioned motor.
Therefore, the motor is beneficial to simplifying the structure of the electric appliance, improving the production efficiency of the electric appliance and improving the safety of the electric appliance.
Drawings
FIG. 1 is an exploded view of an embodiment of the terminal block assembly of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a block diagram of a junction box in an embodiment of the junction box assembly of the present invention;
FIG. 4 is a cross-sectional view of an embodiment of the junction box assembly of the present invention;
fig. 5 is a partially enlarged view at B in fig. 4.
The invention is further explained with reference to the drawings and the embodiments.
Detailed Description
Junction box subassembly, motor and electrical apparatus embodiment:
the electric appliance of the embodiment can be household appliances such as an air conditioner, a refrigerator and a washing machine, the electric appliance of the embodiment comprises the motor of the embodiment, and the motor of the embodiment adopts the junction box assembly of the embodiment.
Referring to fig. 1 and fig. 2, the terminal box assembly of the present embodiment includes a motor housing 1, a sealing ring 2, a terminal box 3 and a terminal base 4, the motor housing 1 has a first step surface 11, the first step surface 11 is provided with a first groove 17, a bottom of the first groove 17 has a first mounting surface 12, the first mounting surface 12 is provided with two first hole regions 13, the two first hole regions 13 are separated by a strip-shaped first mounting structure 14, and the first mounting structure 14 is provided with two first threaded holes 15.
Referring to fig. 3, a side of the terminal box 3 close to the motor housing 1 has a second step surface 31, the second step surface 31 protrudes with a first boss 32, a top of the first boss 32 has a second mounting surface 33, the second mounting surface 33 is opened with two second hole regions 36, and the two second hole regions 36 are separated by a strip-shaped second mounting structure 34.
The first boss 32 is inserted into the first groove 17 along the first direction a, the first boss 32 is embedded in the first groove 17, the first mounting surface 12 is opposite to the second mounting surface 33, the first step surface 11 is opposite to the second step surface 31, the first mounting structure 14 is opposite to the second mounting structure 34, and the two first hole areas 13 are in one-to-one corresponding butt joint with the two second hole areas 36.
The cooperation that sets up first boss 32 and first recess 17 is favorable to realizing the installation location of terminal box 3 and motor casing 1, is favorable to reducing terminal box 3 and the installation complex degree of difficulty of motor casing 1.
Alternatively, the first step surface 11 abuts against the second step surface 31, or the first mounting surface 12 abuts against the second mounting surface 33.
Referring to fig. 3, the second mounting structure 34 is provided with a mounting hole 35, the mounting hole 35 penetrates through the second mounting structure 34 along the first direction a, a hole wall surface of the mounting hole 35 has an included angle of 5 ° with the first direction a, along the first direction a, the cross-sectional shape of the mounting hole 35 is a rounded rectangle, and an opening of the mounting hole 35 on a side close to the first mounting structure 14 is smaller than an opening of the mounting hole 35 on a side far from the first mounting structure 14.
Referring to fig. 4 and 5, the wire holder 4 includes a main body portion 41 and a mounting protrusion 42, the mounting protrusion 42 protrudes from the main body portion 41 toward the first mounting structure 14 along a first direction a, an included angle between a side wall surface of the mounting protrusion 42 and the first direction a is 5 °, the side wall surface of the mounting protrusion 42 matches a hole wall surface of the mounting hole 35, and the mounting protrusion 42 is inserted into the mounting hole 35 along the first direction a from an opening of the mounting hole 35 on a side away from the first mounting structure 14. The fitting of the mounting protrusion 42 and the mounting hole 35 is beneficial to positioning the terminal box 3 and the wire holder 4, and is convenient for reducing the difficulty in fitting the terminal box 3 and the wire holder 4.
In addition, because the pore wall of mounting hole 35 has 5 contained angles with first direction a to and because the lateral wall face of installation convex part 42 has 5 contained angles with first direction a, be favorable to reducing the degree of difficulty that installation convex part 42 inserted mounting hole 35 on the one hand like this, reduce the installation degree of difficulty of connection terminal 4 and terminal box 3 complex, on the other hand, also can realize spacingly through the butt of the hole wall face of mounting hole 35 and the lateral wall face of installation convex part 42 on first direction a to terminal box 3, realize the fixed connection of connection terminal 4, terminal box 3 and motor casing 1.
Specifically, referring to fig. 4 and 5, two first through holes 43 are formed in the wire holder 4, the two first through holes 43 both penetrate through the main body portion 41 and the mounting protrusion 42 along the first direction a, the two first through holes 43 are in one-to-one butt joint with the two first threaded holes 15, two screws penetrate through the two first through holes 43 one-to-one and then are in threaded connection with the corresponding first threaded holes 15, along the first direction a, the side wall of the mounting protrusion 42 abuts against the hole wall of the mounting hole 35, the wire holder 3 is extruded between the wire holder 4 and the motor housing 1, and the sealing ring 2 is extruded between the wire holder 3 and the motor housing 1. In adopting this embodiment terminal box subassembly, adopt two screws just can realize terminal box 3, connection terminal 4 and motor casing 1's fixed connection, be favorable to reducing the quantity of screw in the terminal box subassembly, be favorable to reducing the manufacturing cost of terminal box subassembly to be favorable to simplifying the cooperation installation of each spare part in the terminal box subassembly, be favorable to promoting the production efficiency of terminal box subassembly.
Alternatively, in the first direction a, it is also possible that the side wall of the mounting projection 42 does not abut against the hole wall of the mounting hole 35, and the main body portion 41 abuts against the junction box 3.
Alternatively, the mounting hole 35 may be replaced by a mounting groove, the opening of which faces away from the first mounting structure 14 along the first direction a, the side wall surface of the mounting groove forms an angle of 5 ° with the first direction a, the cross-sectional dimension of the mounting groove gradually decreases from the opening end to the bottom end of the groove along the first direction a, and the side wall of the mounting protrusion 42 abuts against the side wall of the mounting groove; of course, the top wall of the mounting projection 42 may abut against the bottom wall of the mounting groove, or the main body portion 41 may abut against the junction box 3.
Alternatively, the included angle between the side wall surface of the mounting protrusion 42 and the first direction a may also be 3 ° or 4 °, and the hole wall surface of the mounting hole 35 is kept to match with the side wall surface of the mounting protrusion 42, so that the terminal box 3 and the wire holder 4 can be conveniently mounted, and the fixed connection of the wire holder 4, the terminal box 3 and the motor housing 1 can be achieved; of course, the side wall surface of the mounting hole 35 may be parallel to the first direction a, so that the fitting of the mounting protrusion 42 and the mounting hole 35 can position the terminal box 3 and the wire holder 4, and the main body 41 and the terminal box 3 abut against each other in the first direction a to fixedly connect the terminal box 3, the wire holder 4 and the motor housing 1.
Alternatively, the mounting holes 35 and the mounting protrusions 42 may be eliminated, and screws are sequentially inserted through the wire holder 4 and the second mounting structure 34 and then screwed into the first threaded holes 15 of the first mounting structure 14, so that the terminal box 3, the wire holder 4 and the motor housing 1 can be fixedly connected.
Specifically, the annular groove 16 is formed in the first step surface 11, the annular groove 16 is distributed around the mounting convex portion 42 for one circle, the seal ring 2 is embedded in the annular groove 16, the first step surface 11 is abutted against the second step surface 31, and the annular groove 16 is extruded between the first step surface 11 and the second step surface 31; preferably, the annular groove 16 is formed at the intersection of the first step surface 11 and the side wall surface of the first groove 17, so that when the sealing ring 2 is installed, the sealing ring 2 is firstly sleeved on the first boss 32, then the first boss 32 is inserted into the first groove 17, and the sealing ring 2 moves to the annular groove 16 along with the first boss 32, so that the sealing ring 2 does not need to be installed in cooperation with the annular groove 16 alone, which is beneficial to simplifying the assembly process of the junction box assembly and improving the production efficiency of the junction box assembly. The annular groove 16 does not mean that the extending locus of the groove is circular, but means that the annular groove 16 makes one turn around the first boss 32.
Preferably, the first mounting surface 12 is provided with a second threaded hole, the second mounting surface 33 is provided with a second through hole, the second threaded hole is in butt joint with the second through hole, and a screw penetrates through the second through hole and then is in threaded connection with the second threaded hole, so that the connection reliability between the junction box 3 and the motor housing is further improved, and the junction box 3 and the motor housing 1 are favorably and fixedly connected.
Alternatively, a second boss may be provided on the first step surface 11, and a second groove may be provided on the second step surface 31, and the second boss is embedded in the second groove, so as to position the terminal box 3 and the motor housing 1.
Finally, it should be emphasized that the above-described preferred embodiments of the present invention are merely examples of implementations, rather than limitations, and that many variations and modifications of the invention are possible to those skilled in the art, without departing from the spirit and scope of the invention.
Claims (11)
1. The junction box assembly comprises a base body, a junction box, a sealing ring and a junction box, wherein the junction box and the junction box are fixed on the base body, the sealing ring is extruded between the junction box and the base body, the junction box is positioned in a box cavity of the junction box, a first junction hole is formed in the base body, a second junction hole is formed in the junction box, and the first junction hole is in butt joint with the second junction hole along a first direction;
the method is characterized in that:
the base body is also provided with a first mounting structure, and the first mounting structure is positioned in the first wiring hole;
the junction box is also provided with a second mounting structure, the second mounting structure is positioned in the second wiring hole, and the wiring base, the second mounting structure and the first mounting structure are sequentially distributed along the first direction;
the first mounting structure divides the first wiring hole into two hole areas, the second mounting structure divides the second wiring hole into two hole areas, and the hole areas of the first wiring hole are correspondingly butted with the hole areas of the second wiring hole one by one;
along the first direction, the wire holder is connected with the first mounting structure through a connecting piece, the junction box is abutted against the wire holder, and the junction box is extruded between the wire holder and the base body.
2. The junction box assembly of claim 1, wherein:
the second mounting structure is provided with a mounting slot hole, the mounting slot hole is a mounting hole penetrating through the second mounting structure along the first direction or the mounting slot hole is a mounting groove with an opening back to the first mounting structure;
and the wire holder is provided with an installation convex part facing the first installation structure, and the installation convex part is installed in the installation groove hole.
3. The junction box assembly of claim 2, wherein:
the lateral wall face of installation convex part with the contained angle of first direction is the acute angle, the lateral wall face of installation slotted hole with the contained angle of first direction is the acute angle, follows first direction is from being close to first mounting structure one side is to keeping away from first mounting structure one side, the cross sectional dimension crescent of installation convex part, the cross sectional dimension crescent of installation slotted hole.
4. The junction box assembly of claim 2, wherein:
along the first direction, the cross-sectional shape of the mounting slot is a rounded rectangle, and the cross-sectional shape of the mounting convex part is a rounded rectangle.
5. The junction box assembly of claim 2, wherein:
the wire holder is connected with the first mounting structure through a screw, and the screw penetrates through the wire holder and the junction box and then is in threaded connection with the first mounting structure.
6. The junction box assembly of claim 1, wherein:
the first mounting structure is a bar structure, and the second mounting structure is a bar structure.
7. The terminal block assembly according to any one of claims 1 to 6, wherein:
the base body is provided with a first groove which is recessed back to the junction box, and the first wiring hole is formed in the bottom surface of the first groove;
the junction box is provided with a first boss protruding towards the base body, and the second wiring hole is formed in the top surface of the first boss;
the first boss is embedded in the first groove.
8. The terminal block assembly of claim 7, wherein:
the sealing ring is characterized in that a first step surface is arranged on the base body, the first groove is formed in the first step surface, an annular groove is formed in the intersection of the first step surface and the side wall surface of the first groove, the annular groove extends around the first boss in a circle, and the sealing ring is embedded in the annular groove.
9. The terminal block assembly according to any one of claims 1 to 6, wherein:
the base body is provided with a second boss protruding towards the junction box, and the first wiring hole is formed in the top surface of the second boss;
the junction box is provided with a second groove back to the base body, the second wiring hole is formed in the bottom surface of the second groove, and the second boss is embedded in the second groove.
10. The motor, its characterized in that:
comprising a terminal block assembly according to any one of claims 1 to 9, the base being a motor housing.
11. An electrical appliance, characterized by:
comprising an electric machine according to claim 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910771833.0A CN110365153B (en) | 2019-08-21 | 2019-08-21 | Junction box assembly, motor and electric appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910771833.0A CN110365153B (en) | 2019-08-21 | 2019-08-21 | Junction box assembly, motor and electric appliance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110365153A CN110365153A (en) | 2019-10-22 |
| CN110365153B true CN110365153B (en) | 2020-07-28 |
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ID=68224109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910771833.0A Active CN110365153B (en) | 2019-08-21 | 2019-08-21 | Junction box assembly, motor and electric appliance |
Country Status (1)
| Country | Link |
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| CN (1) | CN110365153B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021135431A1 (en) * | 2019-12-31 | 2021-07-08 | 广东美的制冷设备有限公司 | Junction box for air conditioner, and air conditioner having same |
| CN111102701A (en) * | 2019-12-31 | 2020-05-05 | 广东美的制冷设备有限公司 | Junction box for air conditioner and air conditioner with same |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007019005A1 (en) * | 2007-04-21 | 2008-10-23 | Robert Bosch Gmbh | Junction box for electrical machine, has opening opposite to cover surface to initiate clamp connection, and fastening section to arrange box in electrical machine and to change direction, in which electrical line is guided into box |
| CN103081305B (en) * | 2010-08-24 | 2015-07-22 | 索尤若驱动有限及两合公司 | Connection arrangement and electric motor having such a connection arrangement |
| CN208112403U (en) * | 2018-05-18 | 2018-11-16 | 河南师范大学 | A Highly Sealed Motor Junction Box with Good Applicability |
-
2019
- 2019-08-21 CN CN201910771833.0A patent/CN110365153B/en active Active
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| Publication number | Publication date |
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| CN110365153A (en) | 2019-10-22 |
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