CN112448526A - Flat motor stator junction box - Google Patents
Flat motor stator junction box Download PDFInfo
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- CN112448526A CN112448526A CN202011279276.XA CN202011279276A CN112448526A CN 112448526 A CN112448526 A CN 112448526A CN 202011279276 A CN202011279276 A CN 202011279276A CN 112448526 A CN112448526 A CN 112448526A
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- junction box
- angle
- bus bar
- bend
- flat
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- 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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Abstract
The invention discloses a flat motor stator junction box, comprising: the first bus bar is arranged on the side wall of the box-type structure motor and is provided with a first bend; the two second bus bars are respectively arranged at the left end and the right end of the first bus bar and connected with the side wall; each second busbar is provided with at least one second bend; the junction box body is sleeved on the peripheries of the first bus bar and the two second bus bars, and the shape of the junction box body is matched with the shape of the two second bus bars; the cable joint is arranged at the bottom end of the junction box body; at least one of the first bend and the second bend is at a non-flat angle or a non-pi radian. The invention solves the problem of poor space utilization rate of the traditional stator junction box, adopts the flat bus bar, ensures the electrical clearance, facilitates the installation and routing of external cables, reduces the construction cost of the workplace where the motor is positioned, and improves the space utilization rate.
Description
Technical Field
The invention relates to the technical field of motor bus bars, in particular to a flat motor stator junction box.
Background
The motor that generally uses in the industry at present is box structure motor, as shown in fig. 1, box structure motor 1 is inside to set up motor shaft 2 that runs through, and traditional stator terminal box 3 sets up on the lateral wall of box structure motor 1 along motor shaft 2 direction, and the inside busbar 4 of traditional stator terminal box 3 sets up on the lateral wall of box structure motor 1 along motor shaft 2 direction.
As shown in fig. 2, in a side view of the box-type structure motor 1 and the conventional stator junction box 3, it can be seen that the conventional stator junction box 3 is provided with the bus bars 4 with different thicknesses at different heights, so that the bus bars 4 are arranged in a step shape; the bus bars 4 arranged in the ladder shape are three-phase or multi-phase bus bars with enough electric gaps left between them, so that the operation safety of the box-type structure motor 1 is ensured; meanwhile, the bus bars 4 arranged in a ladder shape facilitate the wiring and installation of the external cables of the box-type structure motor 1.
However, in a limited working space, such as a wind power cabin, a small factory building, etc., the protruding stator junction box 3 of the box-type structure motor 1 will increase the occupied space, reduce the working space of personnel and other equipment in the working place, reduce the utilization rate of the working space, and increase the construction cost of the working place to which the box-type structure motor belongs.
For example: for a wind power cabin, the thickness of the traditional stator junction box can affect the cost of a rack platform below a motor, the cost of a cabin cover and the passing of operation and maintenance personnel in the cabin, so that the working efficiency is reduced.
Disclosure of Invention
The invention aims to provide a flat motor stator junction box. The motor stator junction box aims at solving the problem that the space utilization rate of the traditional stator junction box is poor, and the flat bus bar is adopted, so that the installation and wiring of an external cable are facilitated while the electric gap is ensured, the construction cost of a workplace where a motor is located is reduced, and the space utilization rate is improved.
In order to achieve the aim, the invention provides a flat motor stator junction box which is arranged on the side wall of a box-type structure motor; this flat motor stator terminal box includes:
the first bus bar is arranged on the side wall of the box-type structure motor through a first insulator; the first busbar is provided with at least one first bend;
the two second bus bars are respectively arranged at the left end and the right end of the first bus bar and are connected with the side wall of the box-type structure motor through a second insulator; each second busbar is provided with at least one second bend;
the junction box body is sleeved on the peripheries of the first bus bar and the two second bus bars, and the shape of the junction box body is matched with the shape of the two second bus bars;
the cable joint is arranged at the bottom end of the junction box body and used for connecting an external cable into the junction box body and is connected with the first bus bar and the two second bus bars inside the junction box body.
At least one of the first bend and the second bend is at a non-flat angle or a non-pi radian.
Most preferably, the first bend is at a first angle or arc; second bending into a second angle or a second radian; the second angle is the same as the first angle; the second arc is the same as the first arc.
Most preferably, the first bend is at a first angle; second bending the sheet to a second angle; the first angle is 90 degrees; the second angle is 90 degrees.
Most preferably, the first bend is at a first angle; second bending the sheet to a second angle; the first angle is 180 degrees and the second angle is 90 degrees.
Most preferably, the left and right ends of the first bus bar are located at the same level.
Most preferably, the junction box body comprises:
the stator junction box body is of a hollow structure, is sleeved on the peripheries of the first bus bar and the two second bus bars, and the shape of the stator junction box body is matched with the shape of the two second bus bars;
and the stator junction box cover is covered on the stator junction box body and used for sealing the junction box body.
Most preferably, the first busbar is connected to the first insulator by a first connector; the two second busbars are connected with the second insulator through a second connecting piece; the first connecting piece and the second connecting piece are both bolts.
Most preferably, the first insulators are provided in plurality at left and right ends, or at a central position, or at left and right ends and at a central position of the first bus bar, respectively; the second insulators are arranged at the upper end and the lower end of each second bus bar or at the central position, or at the upper end and the lower end and the central position.
Most preferably, the first bus bar is further provided with a motor terminal for connecting the box-structured motor through the motor terminal.
By applying the flat bus bar, the problem of poor space utilization rate of the traditional stator junction box is solved, the flat bus bar is adopted, the electric gap is ensured, meanwhile, the installation and routing of an external cable are facilitated, the construction cost of a working place where a motor is located is reduced, and the space utilization rate is improved.
Compared with the prior art, the invention has the following beneficial effects:
the flat bus bar junction box for the stator of the motor, provided by the invention, has higher space utilization rate, ensures that enough electric gaps are reserved between the bus bars and surrounding parts, is convenient for the installation and routing of external cables of the motor, increases the working space of personnel and other equipment in a working place, reduces the construction cost of the working place to which the motor belongs, and realizes the optimal system in the space utilization rate.
Drawings
Fig. 1 is a schematic structural view of a conventional box-structured motor 1 and a conventional stator junction box 3;
fig. 2 is a side view of a conventional box-structured motor 1 and a conventional stator junction box 3;
fig. 3 is a perspective view of an external structure of a flat motor stator junction box according to embodiment 1 of the present invention;
fig. 4 is a perspective view of the internal structure of the flat motor stator junction box according to embodiment 1 of the present invention;
fig. 5 is an internal front view of a flat motor stator junction box according to embodiment 1 of the present invention;
fig. 6 is an exploded view of the flat motor stator junction box according to embodiment 1 of the present invention;
fig. 7 is a schematic structural diagram of the flat motor stator junction box accessing an external cable in embodiment 1 provided by the invention;
fig. 8 is a perspective view of an internal structure of a flat motor stator junction box connected to an external cable according to embodiment 2 of the present invention;
fig. 9 is a schematic view of an internal structure of a flat motor stator junction box accessing an external cable in embodiment 2 of the present invention;
fig. 10 is a comparison of the thickness of a conventional stator terminal box and a flat type motor stator terminal box provided by the present invention.
Detailed Description
The invention will be further described by the following specific examples in conjunction with the drawings, which are provided for illustration only and are not intended to limit the scope of the invention.
The inside motor shaft 2 that runs through that sets up of the traditional box structure motor 1 of general application, as shown in fig. 1, traditional stator terminal box 3 sets up on box structure motor 1's lateral wall, as shown in fig. 2, the inside busbar 4 of stator terminal box 3 sets up on box structure motor 1's lateral wall along motor shaft 2 direction, and busbar 4 is three-phase or heterogeneous, sets up on the different height of stator terminal box 3 for different thickness respectively, is the echelonment and arranges, then convex stator terminal box 3 thickness D1Greatly, the occupied space of the box-type structure motor 1 is increased, and the utilization rate of the working space is reduced.
The invention relates to a flat motor stator junction box M, which is arranged on the side wall of a box-type structure motor 1 as shown in figure 3. As shown in fig. 4, the flat motor stator terminal block M includes: the first busbar 100, the second busbar 200, the first insulator 300, the second insulator 400, the junction box body 500 and the cable connector 600.
As shown in fig. 5 and 6, the first bus bar 100 is disposed on the side wall of the box-type motor 2 through the first insulator 300, and at least one first bend 101 is disposed on the first bus bar 100, so that a contact area between an external cable K (see fig. 7) and the first bus bar 100 is increased, and a utilization rate of the first bus bar 100 is improved.
Wherein each first bend 101 has a first angle α or a first arc (not shown); the left end 102 and the right end 103 of the first busbar 100 are located at the same level or not. In the present embodiment, the left end 102 and the right end 103 of the first busbar 100 are located at the same level, so that the space layout of the first busbar 100 is more optimized and compact, and the volume of the flat motor stator junction box M is reduced.
The two second bus bars 200 are respectively disposed at two ends of the left end 102 and the right end 103 of the first bus bar 100, and are connected to the side wall of the box-type structure motor 2 through second insulators 400; each second busbar 200 is provided with at least one second bend 201; the second bend 201 has a second angle β or a second arc (not shown), so as to increase the contact area between the external cable K (see fig. 7) and the second bus bar 200, and increase the utilization rate of the second bus bar 200.
Wherein at least one of the first bend 101 and the second bend 201 is at an angle other than a flat angle or at an arc other than pi.
Wherein, the second angle β of the second bend 201 on each second busbar 200 is the same as or different from the first angle α of the first bend 101 on the first busbar 100; the second curvature of the second bend 201 of each second busbar 200 may be the same or different from the first curvature of the first bend 101 of the first busbar 100.
As shown in fig. 4 to 9, the junction box 500 is disposed around the first bus bar 100 and the two second bus bars 200, and the shape of the junction box is matched with the shape of the two second bus bars 200, that is, the left and right ends of the junction box 500 are provided with a third angle matched with the second angle β.
As shown in fig. 6, the junction box body 500 includes a stator junction box body 501 and a stator junction box cover 502; the stator junction box 501 is a hollow structure, is sleeved on the peripheries of the first busbar 100 and the two second busbars 200, and has a shape matched with the shapes of the two second busbars 200; a stator terminal cover 502 covers the stator terminal box body 501 to seal the terminal box body 500.
In the following embodiments 1 to 3, as shown in fig. 4 to 9, the number of the first bends 101 is one, the first bends 101 are disposed at the central position of the first bus bar 100, and the first bends 101 have the first angle α; the number of the second bends 201 is one, and the second bends 101 are disposed at the center of the second bus bar 200 and have a first angle β.
In embodiments 1-3, the left end 102 and the right end 103 of the first busbar 100 are at the same first level h1The first bend 101 at the center is at the second level h2(ii) a The second bend 201 at the center of the two second busbars 200 is located at the first level h of the left end 102 and the right end 103 of the first busbar 1001The above.
In embodiment 1, as shown in fig. 4 to 7, the second angle β of the second bend 201 on each second busbar 200 is the same as the first angle α of the first bend 101 on the first busbar 100, so that the space layout of the first busbar 100 and the two second busbars 200 is more optimized and compact, and the volume of the flat motor stator junction box M is reduced.
The first angle α of the first busbar 100 at the central position is 90 degrees, and the first horizontal height h1Is greater than the second level h2That is, the first busbar 100 is V-shaped, so that the utilization rate of the first busbar 100 is increased, and the spatial layout of the flat motor stator junction box M is optimized and compact, and the volume is reduced.
The second angle beta of the two second busbars 200 bent at the central positions is the same as the first angle alpha, the second angle beta is 90 degrees, namely the two second busbars rotate 90 degrees in a V shape and are symmetrically arranged at the two ends of the first busbar 100, and the utilization rate of the second busbars 200 is increased, so that the space layout of the flat motor stator junction box M is more optimized and compact, and the size is reduced.
The third angle at the left end and the right end of the junction box body 500 is the same as the second angle beta, and the junction box body 500 is of a hexagonal structure, so that the space layout of the flat motor stator junction box M is optimized and compact, and the size is reduced.
In embodiment 2, as shown in fig. 8 to 9, the first bus bar 100 is bent at the central position thereof by a first angle α equal to 180 degrees and has a first horizontal height h1Is equal to the second level h2That is, the first bus bar 100 is in a straight shape, so that the utilization rate of the first bus bar 100 is increased, the spatial layout of the flat motor stator junction box M is more optimized and compact, and the volume is reduced.
At least one of the second angle beta of the two second busbars 200 bent at the central position and the first angle alpha forms a non-straight angle, the second angle beta is 90 degrees, namely the two second busbars rotate 90 degrees in a V shape and are symmetrically arranged at two ends of the first busbar 100, so that the utilization rate of the second busbars 200 is increased, the spatial layout of the flat motor stator junction box M is optimized and compact, and the size is reduced.
The third angle at the left end and the right end of the junction box body 500 is the same as the second angle beta, and the junction box body 500 is of a hexagonal structure, so that the space layout of the flat motor stator junction box M is optimized and compact, and the size is reduced.
In the embodiment 2, as shown in fig. 8-9, the first bus bar 100 may further be provided with a motor terminal 900 for connecting the box-type structure motor 1; the box-type structure motor 1 is connected to an external cable K through the motor terminal 900 and the first bus bar 100.
In embodiment 3 (not shown in the drawings), the first angle α of bending at the center of the first busbar 100 is 270 degrees, and the first level h1Is less than the second horizontal height h2That is, the first bus bar 100 is inverted V-shaped, so that the space layout of the flat motor stator junction box M is more optimized and compact, and the volume is reduced.
At least one of the second angle beta of the two second busbars 200 bent at the central position and the first angle alpha forms a non-straight angle, the second angle beta is 90 degrees, namely the two second busbars rotate 90 degrees in a V shape and are symmetrically arranged at two ends of the first busbar 100, so that the utilization rate of the second busbars 200 is increased, the spatial layout of the flat motor stator junction box M is optimized and compact, and the size is reduced.
The third angle at the left end and the right end of the junction box body 500 is the same as the second angle beta, and the junction box body 500 is of a hexagonal structure, so that the space layout of the flat motor stator junction box M is optimized and compact, and the size is reduced.
In another embodiment 4 (not shown in the figures), the number of the first bends 101 is three, and the first bends 101 form a first angle α; the first angle alpha is smaller than 180 degrees, and the left end 102 and the right end 103 of the first busbar 100 are located at the same first horizontal height h1That is, the first bus bar 100 is W-shaped; compared with the embodiments 1 to 3, the W-shaped first bus bar 100 increases the contact area between the external cable K and the first bus bar 100, and improves the utilization rate of the first bus bar 100.
In another embodiment 5 (not shown in the figures), the number of the first bends 101 is three, and the first bends 101 form a first angle α; the first angle alpha is larger than 180 degrees, and the left end 102 and the right end 103 of the first busbar 100 are located at the same first horizontal height h1That is, the first bus bar 100 is in an inverted W shape, and the inverted W-shaped first bus bar 100 increases the contact area between the external cable K and the first bus bar 100, thereby increasing the utilization rate of the first bus bar 100.
In another embodiment 6 (not shown in the figures), the number of the first bends 101 is one, and the first bends 101 have a first arc; the first radian is less than pi, and the left end 102 and the right end 103 of the first busbar 100 are positioned at the same first horizontal height h1That is, the first bus bar 100 has an arc shape with an upward opening.
The second bend 201 on each second busbar 200 has a second radian, and the second radian is the same as the radian of the first bend 101 on the first busbar 100, so that the space layout of the first busbar 100 and the two second busbars 200 is optimized and compact, and the volume of the flat motor stator junction box M is reduced. In another embodiment 7Middle (not shown in the figure), the number of the first bends 101 is one, and the first bends 101 have a first radian; the first radian is larger than pi and smaller than 2 pi, and the left end 102 and the right end 103 of the first busbar 100 are positioned at the same first horizontal height h1That is, the first bus bar 100 has an arc shape with a downward opening.
As shown in fig. 6, the first bus bar 100 is connected to the first insulator 300 by a first connector 700; the two second bus bars 200 are connected to the second insulator 400 through the second connection member 800; the first connector 700 and the second connector 800 are both bolts.
A plurality of first insulators 300 are respectively disposed at left and right ends, or a central position, or left and right ends and a central position of the first bus bar 100; the plurality of second insulators 400 are respectively disposed at the upper and lower ends, or the center position, or the upper and lower ends and the center position of each second bus bar 200.
As shown in fig. 7-9, the cable joint 600 is disposed at the bottom end of the junction box 500, and is used for an external cable K to be connected to the stator junction box 501 of the junction box 500, and connected to the first bus bar 100 and the two second bus bars 200 inside the junction box.
As shown in fig. 10, which is a comparison between the thickness of the conventional stator junction box 3 and the thickness of the flat motor stator junction box M in the present application, it is obvious that the thickness D of the flat motor stator junction box M is2Thickness D less than conventional stator terminal box 31。
In the flat motor stator junction box M, the first busbar 100 and the two busbars 200 are distributed in a parallel arrangement on the plane of the side wall of the box-type structure motor, so that the thickness of the 'insulator + busbar' formed by the plurality of first insulators 300 and the plurality of second insulators 400 and the first busbar 100 and the two busbars 200 on the box-type structure motor is irrelevant to the number of the busbars 4 in the conventional stator junction box 3, and the thickness D of the flat motor stator junction box M2The influence of the number of the bus bars 4 on the conventional stator junction box 3 is avoided, and the flattening of the stator junction box is realized.
Meanwhile, the flat motor stator junction box M ensures that sufficient electrical gaps are left between the first busbar 100 and the second busbar 200 and between the busbars and surrounding parts, thereby facilitating the installation and routing of the external cable K, increasing the working space of personnel and other equipment in a workplace, and improving the space utilization rate of the box-type structure motor 1.
The working principle of the invention is as follows:
the first bus bar is arranged on the side wall of the box-type structure motor through a first insulator; the first busbar is provided with at least one first bend; the two second bus bars are respectively arranged at the left end and the right end of the first bus bar and are connected with the side wall of the box-type structure motor through second insulators; each second busbar is provided with at least one second bend; the junction box body is sleeved on the peripheries of the first bus bar and the two second bus bars, and the shape of the junction box body is matched with the shape of the two second bus bars; the cable joint is arranged at the bottom end of the junction box body, is used for connecting an external cable into the junction box body and is connected with the first busbar and the two second busbars inside the junction box body; at least one of the first bend and the second bend is at a non-flat angle or a non-pi radian.
In conclusion, the flat motor stator junction box solves the problem of poor space utilization rate of the traditional stator junction box, and the flat bus bar is adopted, so that the installation and routing of an external cable are facilitated while the electric gap is ensured, the construction cost of a workplace where a motor is located is reduced, and the space utilization rate is improved.
While the present invention has been described in detail with reference to the preferred embodiments, it should be understood that the above description should not be taken as limiting the invention. Various modifications and alterations to this invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be determined from the following claims.
Claims (9)
1. A flat motor stator junction box is characterized in that the flat motor stator junction box is arranged on the side wall of a box-type structure motor; and the flat type motor stator junction box includes:
the first bus bar is arranged on the side wall of the box-type structure motor through a first insulator; the first busbar is provided with at least one first bend;
the two second bus bars are respectively arranged at the left end and the right end of the first bus bar and are connected with the side wall of the box-type structure motor through a second insulator; each second busbar is provided with at least one second bend;
the junction box body is sleeved on the peripheries of the first bus bar and the two second bus bars, and the shape of the junction box body is matched with the shape of the two second bus bars;
the cable joint is arranged at the bottom end of the junction box body, is used for connecting an external cable into the junction box body and is connected with the first busbar and the two second busbars inside the junction box body;
at least one of the first bend and the second bend is at a non-flat angle or a non-pi radian.
2. The flat motor stator junction box of claim 1, wherein the first bend is at a first angle or a first arc; the second bend is at a second angle or a second radian; the second angle is the same as the first angle; the second arc is the same as the first arc.
3. The flat motor stator junction box of claim 2, wherein the first bend is at a first angle; the second bend is bent to a second angle; the first angle is 90 degrees; the second angle is 90 degrees.
4. The flat motor stator junction box of claim 1, wherein the first bend is at a first angle; the second bend is bent to a second angle; the first angle is 180 degrees and the second angle is 90 degrees.
5. The flat type motor stator junction box according to claim 1, wherein both left and right ends of the first bus bar are located at the same level.
6. The flat type motor stator junction box according to claim 1, wherein the junction box body comprises:
the stator junction box body is of a hollow structure, is sleeved on the peripheries of the first bus bar and the two second bus bars, and is matched with the two second bus bars in shape;
and the stator junction box cover covers the stator junction box body and is used for sealing the junction box body.
7. The flat motor stator junction box according to claim 1, wherein the first bus bar is connected to the first insulator by a first connecting member; the two second bus bars are connected with the second insulator through a second connecting piece; the first connecting piece and the second connecting piece are both bolts.
8. The flat type motor stator terminal box according to claim 1, wherein a plurality of the first insulators are respectively provided at left and right ends, or a central position, or left and right ends and a central position of the first bus bar;
the second insulators are arranged at the upper end and the lower end of each second bus bar, or at the central position, or at the upper end and the lower end and the central position.
9. The flat type motor stator terminal box according to claim 1, wherein a motor terminal is further provided on the first bus bar for connecting the box type structure motor through the motor terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011279276.XA CN112448526B (en) | 2020-11-16 | 2020-11-16 | Flat motor stator junction box |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011279276.XA CN112448526B (en) | 2020-11-16 | 2020-11-16 | Flat motor stator junction box |
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| CN112448526A true CN112448526A (en) | 2021-03-05 |
| CN112448526B CN112448526B (en) | 2022-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011279276.XA Active CN112448526B (en) | 2020-11-16 | 2020-11-16 | Flat motor stator junction box |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4866217A (en) * | 1988-02-05 | 1989-09-12 | Yazaki Corporation | Bus bar circuit board structure |
| CN204304344U (en) * | 2014-06-10 | 2015-04-29 | 长春轨道客车股份有限公司 | City railway vehicle staggered floor terminal abnormity junction box |
| CN111193361A (en) * | 2020-03-16 | 2020-05-22 | 大连宜顺机电有限公司 | Busbar with ladder arrangement structure |
| CN111276918A (en) * | 2018-12-04 | 2020-06-12 | 中车永济电机有限公司 | Terminal box |
| CN211670268U (en) * | 2020-04-23 | 2020-10-13 | 洛阳超特电源科技有限公司 | Battery module |
-
2020
- 2020-11-16 CN CN202011279276.XA patent/CN112448526B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4866217A (en) * | 1988-02-05 | 1989-09-12 | Yazaki Corporation | Bus bar circuit board structure |
| CN204304344U (en) * | 2014-06-10 | 2015-04-29 | 长春轨道客车股份有限公司 | City railway vehicle staggered floor terminal abnormity junction box |
| CN111276918A (en) * | 2018-12-04 | 2020-06-12 | 中车永济电机有限公司 | Terminal box |
| CN111193361A (en) * | 2020-03-16 | 2020-05-22 | 大连宜顺机电有限公司 | Busbar with ladder arrangement structure |
| CN211670268U (en) * | 2020-04-23 | 2020-10-13 | 洛阳超特电源科技有限公司 | Battery module |
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| CN112448526B (en) | 2022-02-18 |
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