GB2596382A - Busbar accommodating structure and high voltage connection device - Google Patents
Busbar accommodating structure and high voltage connection device Download PDFInfo
- Publication number
- GB2596382A GB2596382A GB2103006.9A GB202103006A GB2596382A GB 2596382 A GB2596382 A GB 2596382A GB 202103006 A GB202103006 A GB 202103006A GB 2596382 A GB2596382 A GB 2596382A
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- busbar
- main path
- case
- accommodating
- width
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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
- H02G5/00—Installations of bus-bars
- H02G5/04—Partially-enclosed installations, e.g. in ducts and adapted for sliding or rolling current collection
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/0207—Wire harnesses
- B60R16/0215—Protecting, fastening and routing means therefor
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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
- H02G5/00—Installations of bus-bars
- H02G5/06—Totally-enclosed installations, e.g. in metal casings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Connection Or Junction Boxes (AREA)
- Windings For Motors And Generators (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
- Installation Of Bus-Bars (AREA)
Abstract
Busbar accommodating structure 2 including a busbar 3 having a strip plate shape and an insulating case 4 which accommodates the busbar; the busbar includes a main path portion 9, 21, a plurality of terminal portions 10, 11, 22, 23 exposed from the case when the busbar is in the case, and an intermediate portion 12, 13, 24, 25 provided between at least one of the terminal portions and the main path portion and being continuous with the main path portion in a bent manner or in a linear manner, the case includes a first accommodating portion 33 which accommodates the main path portion and a second accommodating portion 36, 37 which accommodates the intermediate portion and is formed such that a width (W1 Figure 3) of the first accommodating portion is greater than a width (W3 Figure 3) of the second accommodating portion. The main path portion may comprise a third width (W2 Figure 3) which is narrower than W1 but wider than W3 formed from a rib. The bus bar may be formed of two busbars 5, 6 and the case may comprise a partition wall 43.
Description
BUSBAR ACCOMMODATING STRUCTURE AND HIGH VOLTAGE CONNECTION DEVICE
TECHNICAL FIELD
[0001] The present invention relates to a busbar accommodating structure that includes a conductive busbar having a strip plate shape and an insulating case for accommodating a busbar. The present invention also relates to a high voltage connection device having the busbar accommodating structure.
BACKGROUND
[0002] A related art high voltage connection device (power distribution member) includes a first busbar, a second busbar, and a third busbar for power distribution, and a case (a case member in the related art) in which the first busbar, the second busbar, and the third busbar are insulated and held. Each busbar has terminal portions exposed from the case at two ends and a portion of the busbar between the terminal portions is held in the case. The case is a resin molded product, and is provided with three grooves configured to hold the busbars when the busbars are inserted into the grooves. The three grooves are formed into linear shapes in accordance with shapes of the busbars. A retaining protrusion for preventing each busbar from coming off is formed in an opening of each of the three grooves. A rib for keeping each busbar in a press-fitted state is formed on an inner side wall of each of the three grooves in a manner of slightly protruding from the inner side wall (see, for example, JP2016-63653A).
[0003] In the related art, the three grooves in the case are formed into shapes that hold the busbars. Therefore, each of the grooves is formed into a shape having an extra space as less as possible (formed into a shape in which a clearance space is not provided unnecessarily).
When each of the busbars is simply formed into a short linear shape, a dimensional variation among the busbars is not so large. However, when each of the busbars is long, a dimensional variation needs to be considered and it is necessary to set a dimensional tolerance to be large. As often seen recent years, a layout and a path related to an electrical connection are complicated, and thus the busbars often have a plurality of bent portions. Therefore, when the amount of dimensional errors for portions of the busbar between each of the bent portions is accumulated in an increasing manner (in a direction of an upper limit), the length of the busbar may become too long beyond predetermined dimensional tolerance with which the busbar is supposed to be manufactured. For example, when the busbars are long enough to exceed the dimensional tolerance, such an excess in length of the busbar cannot be absorbed in a busbar accommodating structure in the related art with the three grooves. As a result, when the busbars are forcibly inserted into the three grooves, the case may be damaged or the like.
SUMMARY
[0004] Illustrative aspects of the present invention provide a busbar accommodating structure in which even when dimensional errors of respective portions of a busbar are accumulated in an increasing manner to exceed an overall dimensional tolerance of the busbar and the busbar is put in a case without noticing the excess, the excess can be absorbed in the case and a high voltage connection device having the busbar accommodating structure.
[0005] According to an illustrative aspect of the present invention, a busbar accommodating structure includes a busbar being electrically conductive and having a strip plate shape and a case being electrically insulative and configured to accommodate the busbar. The busbar includes a main path portion, a plurality of terminal portions configured to be exposed from the case when the busbar is accommodated in the case, and an intermediate portion provided between at least one of the plurality of terminal portions and the main path portion and being continuous with the main path portion in a bent manner or in a linear manner. The case includes a first accommodating portion configured to accommodate the main path portion and a second accommodating portion configured to accommodate the intermediate portion and is formed such that a first width of the first accommodating portion is greater than a second width of the second accommodating portion.
[0006] Other aspects and advantages of the invention will be apparent from the following description, the drawings and the claims.
BRIEF DESCRIPTION OF DRAWINGS
[0007] Fig. I is a perspective view showing a busbar accommodating structure and a high voltage connection device according to an embodiment of the present invention; Fig. 2 is an exploded perspective view showing the busbar accommodating structure and the high voltage connection device in Fig. 1, Fig. 3 is a plan view showing a case body; Fig. 4 is a cross-sectional view taken along a line A-A in Fig. 1; and Fig. 5 is an enlarged view of main portions showing functions of the busbar accommodating structure.
DESCRIPTION OF EMBODIMENTS
100081 A high voltage connection device includes a conductive busbar having a strip plate shape and an insulating case configured to accommodate the busbar, The high voltage connection device is attached either between high voltage components, machines or a high voltage component and a machine. A busbar accommodating structure employed in the high voltage connection device includes a busbar and a case. The busbar includes a main path portion, which is a main portion of a path, a plurality of terminal portions that are to be exposed from the case, and an intermediate portion that is positioned between at least one of the plurality of terminal portions and the main path portion and that is continuous either in a bent manner (shape) or a linear manner (shape) with the main path portion. The case is formed such that a width (first width) of a portion that accommodates the main path portion (first accommodating portion) is larger than a width (second width) of a portion that accommodates the intermediate portion (second accommodating portion).
100091 Hereinafter, embodiments will be described with reference to the drawings. Fig. 1 is a perspective view showing a busbar accommodating structure and a high voltage connection device according to an embodiment of the present invention. Fig. 2 is an exploded perspective view showing the busbar accommodating structure and the high voltage connection device in Fig. 1. Fig. 3 is a plan view showing a case body Fig. 4 is a cross-sectional view taken along a line A-A in Fig. 1. Fig. 5 is an enlarged view of main portions showing functions of the busbar accommodating structure.
[0010] In Figs. 1 and 2, reference numeral 1 denotes a high voltage connection device having a busbar accommodating structure 2 according to an embodiment of the present invention. The high voltage connection device 1 is to be attached between high voltage components and/or machines of an automobile, and is used for electrical connection in a battery pack (not shown).
Since the battery pack is relatively large, the high voltage connection device 1 is formed into a long shape. The high voltage connection device 1, which is long, can electrically connect high voltage components separated from each other at a distance. In other words, in order to electrically connect the high voltage components, even when the high voltage components are separated from each other with a distance, the high voltage connection device 1 is formed such that a total length of the high voltage connection device 1 is within a predetermined dimensional tolerance. Therefore, the busbar accommodating structure 2 is effective.
100111 The high voltage connection device 1, or the busbar accommodating structure 2 includes a conductive busbar 3 and an insulating case 4. In the present embodiment, the busbar 3 includes a first busbar 5 and a second busbar 6, and the case 4 includes a case body 7 and a case lid 8. The present invention is not limited thereto, and the number of components of the busbar and the case is not particularly limited. Hereinafter, respective configurations of the high voltage connection device 1, or the busbar accommodating structure 2 will be described.
100121 In Fig. 2, the busbar 3 is formed by punching a conductive metal plate having a desired thickness. The busbar 3 includes the first busbar 5 and the second busbar 6. The busbar 3 is formed into a long strip plate shape. The busbar 3 is formed by performing several bending processes. The busbar 3 is to be arranged such that respective main path portions 9 and 21 which will be described later of the first busbar 5 and the second busbar 6 are aligned substantially in parallel to each other. The busbar 3 is formed into a long strip plate shape in which the main path portions 9 and 21 can be bent. That is, since the busbar 3 is formed into the long strip plate shape, the busbar 3 can be bent (when the busbar 3 is short, the busbar 3 has greater rigidity than when the busbar 3 is long. When the busbar 3 is long, the busbar 3 can be deformed to be bent). In addition, the busbar 3 is formed into a shape configured to connect the high voltage components described above through a predetermined path.
100131 In Fig 2, the first busbar 5 includes the main path portion 9, two terminal portions 10 and 11, and two intermediate portions 12 and 13. The main path portion 9 is a main portion of a path and is a longest portion of the first busbar 5. The main path portion 9 in the present embodiment includes a first main path portion 14 formed to be long, a second main path portion formed to be shorter than the first main path portion 14, and a bent portion 16 that is a continuous portion between the first main path portion 14 and the second main path portion 15. The main path portion 9 is formed into an L shape in the drawing. The first main path portion 14 is formed to extend straight in a direction of an arrow P in the drawing. The second main path portion 15 is formed to extend straight in a direction of an arrow Q which is perpendicular to the direction of the arrow P. The bent portion 16 is a portion bent by 90 degrees. In other words, the first main path portion 14 intersects with the second main path portion 15 orthogonally at the bent portion 16. A width (a length in a direction of an arrow R in Fig. 2, the direction of the arrow R is perpendicular to the directions of the arrows P and Q) and a thickness of the main path portion 9 are appropriately set according to a current or the like. The first main path portion 14 and the second main path portion 15 constituting the main path portion 9 are formed to have the same width and the same thickness. Although not particularly limited, the first main path portion 14 is formed to have a length that is twice or more of a length of the second main path portion 15. At least the first main path portion 14 can be bent (can be deformed in a manner of being bent).
100141 The terminal portions 10 and 11 are provided at two end positions of the first busbar (at two ends portions in a longitudinal direction of the first busbar 5). The terminal portion is formed to be longer than the terminal portion 11 in the direction of the arrow P. The terminal portion 10 is formed into a straight and long tab-shaped portion, and the terminal portion 11 is formed into a straight and short tab-shaped portion. A circular through hole 17 is formed at a tip end side of each of the terminal portions 10 and 11. The through hole 17 and a portion of each of the terminal portions 10 and 11 surrounding the through hole 17 are formed as a connection terminal (reference numeral is omitted). The terminal portions 10 and 11 are provided such that front and back surfaces (widest surfaces) of the terminal portions 10 and 11 are rotated by 90 degrees with respect to front and back surfaces (widest surfaces) of the main path portion 9. The terminal portions 10 and 11 are formed so that a portion of the connection terminal having a predetermined length can be exposed from the case 4. The terminal portions 10 and 11 are formed by being bent by 90 degrees with respect to respective other ends of the intermediate portions 12 and 13 which will be described later.
100151 The intermediate portions 12 and 13 are positioned between the terminal portions 10 and 11 and the main path portion 9. Specifically, one end of the intermediate portion 12 is continuous with the first main path portion 14 and the other end of the intermediate portion 12 is continuous with the terminal portion 10. One end of the intermediate portion 13 is continuous with the second main path portion 15 and the other end of the intermediate portion 13 is continuous with the terminal portion 11. The intermediate portion 12 is coupled to the first main path portion 14 via a bent portion 18. The bent portion 18 is a portion bent by 90 degrees. The intermediate portion 12 extends away from the second busbar 6 along the direction of the arrow Q. On the other hand, the intermediate portion 13 is continuous with the second main path portion 15 extending without being bent by 90 degrees. In other words, the intermediate portion 13 is formed into a short linear shape and is continuous with the second main path portion 15. The intermediate portion 13 is shorter than the intermediate portion 12. The long intermediate portion 12 is formed fairly shorter than the first main path portion 14.
Respective the other ends of the intermediate portions 12 and 13 are coupled with the terminal portions 10 and 11 at upper sides in the drawing with bends by 90 degrees (bent portions are denoted by reference numerals 19 and 20).
100161 In the first busbar 5 according to the present embodiment, the main path portion 9 (the first main path portion 14) is formed to be longer than a predetermined length for the convenience of description.
100171 In Fig. 2, the second busbar 6 includes a main path portion 21, two terminal portions 22 and 23, and two intermediate portions 24 and 25 in a similar manner to the first busbar 5. The main path portion 21 is a main portion of a path, and is a longest portion of the second busbar 6. The main path portion 21 in the present embodiment includes a first main path portion 26 formed to be long, a second main path portion 27 formed to be shorter than the first main path portion 26, and a bent portion 28 that is a continuous portion between the first main path portion 26 and the second main path portion 27. The main path portion 21 is formed into an L shape in the drawing. The first main path portion 26 is formed to extend straight in the direction of the arrow Pin the drawing. The second main path portion 27 is formed to extend straight in the direction of the arrow Q. The bent portion 28 is a portion bent by 90 degrees. A width (a length in the direction of the arrow R in Fig. 2) and a thickness of the main path portion 21 are appropriately set according to a current or the like. The first main path portion 26 and the second main path portion 27 of the main path portion 21 are formed to have the same width and the same thickness. The main path portion 21 is formed to have the same width and the same thickness as those of the main path portion 9 of the first busbar 5 Although not particularly limited, the first main path portion 26 is formed to have a length that is twice or more of a length of the second main path portion 27. At least the first main path portion 26 can be bent (can be deformed in a manner of being bent).
100181 The terminal portions 22 and 23 are provided at two end positions of the second busbar 6. The terminal portion 22 is formed to be longer than the terminal portion 23 in the direction of the arrow P. The terminal portion 22 is formed into a straight and long tab-shaped portion, and the terminal portion 23 is formed into a straight and short tab-shaped portion. A circular through hole 29 is formed at a tip end side of each of the terminal portions 22 and 23.
The through hole 29 and a portion of the terminal portions 22 and 23 surrounding the through hole 29 are formed as a connection terminal (reference numeral is omitted). The terminal portions 22 and 23 are provided such that front and back surfaces (widest surfaces) of the terminal portions 22 and 23 are rotated by 90 degrees with respect to front and back surfaces (widest surfaces) of the main path portion 21. The terminal portions 22 and 23 are formed so that a portion of the connection terminal having a predetermined length can be exposed from the case 4. The terminal portions 22 and 23 are formed by being bent by 90 degrees with respect to respective other ends of the intermediate portions 24 and 25 which will be described later. The terminal portions 22 and 23 are arranged in a manner of being aligned with the terminal portions 10 and 11 of the first busbar 5.
100191 The intermediate portions 24 and 25 are positioned between the terminal portions 22 and 23 and the main path portion 21. Specifically, one end of the intermediate portion 24 is continuous with the first main path portion 26 and the other end of the intermediate portion 24 is continuous with the terminal portion 22. One end of the intermediate portion 25 is continuous with the second main path portion 27 and the other end of the intermediate portion 25 is continuous with the terminal portion 23. The intermediate portion 24 is coupled to the first main path portion 26 via a bent portion 30. The bent portion 30 is a portion bent by 90 degrees. The intermediate portion 24extends away from the first busbar 5 along the direction of the arrow Q. On the other hand the intermediate portion 25 is continuous with the second main path portion 27 extending without being bent by 90 degrees. In other words, the intermediate portion 25 is formed into a short linear shape and is continuous with the second main path portion 27. The intermediate portion 25 is formed to be shorter than the intermediate portion 24. The long intermediate portion 24 is formed fairly shorter than the first main path portion 26 Respective the other ends of the intermediate portions 24 and 25 are coupled with the terminal portions 22 and 23 at upper sides in the drawing with bends by 90 degrees (bent portions are denoted by reference numerals 31 and 32). The intermediate portion 25 is formed to be shorter than the intermediate portion 13 of the first busbar 5.
100201 In the drawing, the case 4 is formed into a shape shown in the drawing by melting an insulating resin material and injecting the melted resin material into a mold. The case 4 is formed into a shape configured to house/accommodate and protect the first busbar 5 and the second busbar 6. As described above, the case 4 includes the case body 7 and the case lid 8. 100211 In Figs. 1 to 5, the case body 7 is formed as a member into which the first busbar 5 and the second busbar 6 are inserted when the first busbar 5 and the second busbar 6 are housed in the case 4. The case body 7 is formed in accordance with shapes and alignment states of the first busbar 5 and the second busbar 6. The case body 7 includes a portion (main path accommodating portion 33 or a first accommodating portion) that houses the main path portions 9 and 21, portions (terminal accommodating exposure portions 34 and 35) where the terminal portions 12, 13, 22, and 23 are housed and exposed to an outside, and portions (intermediate accommodating portions 36 and 37 or a second accommodating portion) that house the intermediate portions 12, 13, 24, and 25. The case body 7 further includes a bottom wall 38, a pair of side walls 39, and a plurality of body side lock portions 40, which are common to the portions described above.
[0022] In Figs. 2 to 5, the main path accommodating portion 33 is formed as a portion that houses the main path portions 9 and 21 of the first busbar 5 and the second busbar 6 as described above. Specifically, the main path accommodating portion 33 includes a first main path accommodating portion 41 and a second main path accommodating portion 42. The first main path accommodating portion 41 can house the first main path portions 14 and 26, and the second main path accommodating portion 42 can house the second main path portions 15 and 27. The main path portions 9 and 21 housed in the first main path accommodating portion 41 and the second main path accommodating portion 42 are partitioned and insulated from each other by a partition wall 43. The partition wall 43 is disposed at the center of the pair of side walls 39.
The partition wall 43 extends vertically from the bottom wall 38 up to a height of the pair of side walls 39. The partition wall 43 and the pair of side walls 39 are arranged in parallel to each other. The partition wall 43 and one side wall 39, and the partition wall 43 and the other side wall 39 are formed at the same interval. That is, a width W1 of the first main path accommodating portion 41 and a width WI of the second main path accommodating portion 42 are the same The width WI of each of the first main path accommodating portion 41 and the second main path accommodating portion 42 is set to be fairly larger than the thickness of each of the first busbar 5 and the second busbar 6 (main path portions 9 and 21). More specifically, the width W1 of each of the first main path accommodating portion 41 and the second main path accommodating portion 42 is set to be fairly large so that the main path portions 9 and21 of the first busbar 5 and the second busbar 6 can be housed even when the main path portions 9 and2 1 of the first busbar 5 and the second busbar 6 are bent to have a substantially wave form as shown in Fig. 5 (or is merely bent (not shown)). In addition, the width W1 (first width) of each of the first main path accommodating portion 41 and the second main path accommodating portion 42 is set to be larger than a width W3 (second width) of each of the intermediate accommodating portions 36 and 37, which will be described later.
[0023] A plurality of narrow portions 44 are formed in the main path accommodating portion 33 formed as described above. The narrow portion 44 is configured to control a bending position of each of the main path portions 9 and 21 or prevents moving/rattling of the main path portions 9 and 21 within the first main path accommodating portion 41 and the second main path accommodating portion 42. The narrow portion 44 is a substantially rib-shaped portion that is short and protrudes vertically from the partition wall 43 toward the side wall 39. In other words, each of the narrow portions 44 is formed with a rib protruding from the partition wall 43 in a direction perpendicular to a direction in which the first main path accommodating portion 41 and the second main path accommodating portion 42 extend. The narrow portion 44 is set such that a width W2 (interval, or a third width) between the narrow portion 44 and the side wall 39 is larger than the width W3 of each of the intermediate accommodating portions 36 and 37, which will be described later. As will be understood from the following description, the narrow portion 44 does not have a function of holding the main path portions 9 and 21 (since the width W2 is set to be larger than the width W3). Relative to the main path portions 9 and 21, the main path accommodating portion 33 is formed with a dimension error absorbing portion 45, where a smaller clearance space is provided, at a position where the narrow portion 44 is provided, and a dimension error absorbing portion 46, where a larger clearance space is provided, at a position where the narrow portion 44 is not provided. The plurality of the narrow portions 44 are provided along a direction in which the main path portions 9 and 21 extends (or the number of the narrow portions 44 may be only one). The narrow portion 44 is formed with a taper (reference numeral is omitted) for guiding the main path portions 9 and 21.
100241 In Figs. 1 to 3, the terminal accommodating exposure portions 34 and 35 are formed as portions where the terminal portions 12, 13, 22, and 23 of the first busbar 5 and the second busbar 6 are housed and exposed to the outside as described above. The terminal accommodating exposure portions 34 and 35 are formed so that a part of each of the terminal portions 12, 13, 22, and 23 can be housed while a remaining portion (a portion corresponding to a terminal) of each of the terminal portions 12, 13, 22, and 23 can be exposed for a predetermined length. The terminal accommodating exposure portions 34 and 35 are formed in pairs [0025] In Figs. 1,2, 3, and 5, the intermediate accommodating portions 36 and 37 are formed as portions that house the intermediate portions 12, 13, 24, and 25 of the first busbar 5 and the second busbar 6 as described above. The intermediate accommodating portion 36 is formed to have the width W3 corresponding to thicknesses of the first busbar 5 and the second busbar 6 (the intermediate portions 12 and 24). The intermediate accommodating portion 36 is not only formed as a accommodating portion but also formed as a holding portion 47 that holds the intermediate portions 12 and 24 (A holding structure is not particularly limited. For example, a rib may be provided and the intermediate portions 12 and 24 may be held by press-fitting.
In addition, since the case lid 8 is provided, it is not necessary to form a retaining protrusion as in the related art). On the other hand, the intermediate accommodating portion 37 is formed to have the width W3 at a first busbar 5 (intermediate portion 13) side only (Similarly, for example, the intermediate accommodating portion 37 may be formed to have the width W3 at a second busbar 6 (an intermediate portion 25) side only). The main path portion 9 is not bent as described above since the intermediate accommodating portions 36 and 37 have the width W3. The intermediate accommodating portion 37 is also formed as the holding portion 47.
[0026] In Figs. 1, 2, and 4, the case lid 8 is formed into a lid shape so as to cover the case body 7 after the first busbar 5 and the second busbar 6 are inserted into the case body 7. The case lid 8 includes a main path lid portion 48, terminal lid portions 49 and 50, and intermediate lid portions 51 and 52. The case lid 8 includes a ceiling wall 53, a pair of side walls 54, and a plurality of lid side lock portions 55.
[0027] The main path lid portion 48 covers the main path accommodating portion 33 of the case body 7. The main path lid portion 48 is formed with a partition wall contact portion 56 on an inner side of the ceiling wall 53. The partition wall contact portion 56 is in contact with an end portion (tip end portion) of the partition wall 43 of the case body 7, and is formed with short ribs at two sides of the end portion of the partition wall 43. A shape of the partition wall contact portion 56 in the present embodiment is not limited as long as the first busbar 5 and the second busbar 6 are separated from each other. In addition, the partition wall contact portion 56 may be not in contact with the end portion (tip end portion) of the partition wall 43.
[0028] The terminal lid portions 49 and 50 cover the terminal accommodating exposure portions 34 and 35 of the case body 7. Similarly, the intermediate lid portions 51 and 52 cover 20 the intermediate accommodating portions 36 and 37 of the case body 7.
100291 As shown in Fig. 5, even when dimensional errors of respective portions of the first busbar 5 are accumulated in an increasing manner to exceed an overall dimensional tolerance with which the first busbar 5 is supposed to be manufactured and the first busbar 5 is housed without noticing the excess, since the first main path accommodating portion 41 of the case body 7 is formed to have a large width as described above, the excess (dimensional errors) can be absorbed in the first main path accommodating portion 41 by, for example, making the first main path portion 14 of the first busbar 5 bent as shown in the drawing. According to the busbar accommodating structure 2, the first main path portion 14 is bent, and the case 4 is provided with a portion that allows bending of the first main path portion 14 arid absorbs dimensional errors, which causes of the bending. Therefore, the busbar accommodating structure 2 can prevent the case 4 (case body 7) from being damaged or the like.
100301 As described above with reference to Figs. 1 to 5, since the high voltage connection device 1 according to an embodiment of the present invention has the busbar accommodating structure 2, a better high voltage connection device 1 can be provided.
[0031] Although not particularly shown, the busbar accommodating structure 2 and the high voltage connection device 1 may include the first busbar 5 and the second busbar 6 in which the main path portions 9 and 21 are straight but are not formed into an L shape, and the case 4 that houses such first busbar 5 and such second busbar 6.
100321 While the present invention has been described with reference to certain exemplary embodiments thereof, the scope of the present invention is not limited to the exemplary embodiments described above, and it will be understood by those skilled in the art that various changes and modifications may be made therein without departing from the scope of the present invention as defined by the appended claims.
[0033] According to an aspect of the embodiments described above, a busbar accommodating structure includes a busbar being electrically conductive and having a strip plate shape and a case being electrically insulative and configured to accommodate the busbar. The busbar includes a main path portion, a plurality of terminal portions configured to be exposed from the case when the busbar is accommodated in the case, and an intermediate portion provided between at least one of the plurality of terminal portions and the main path portion and being continuous with the main path portion in a bent manner or in a linear manner. The case includes a first accommodating portion configured to accommodate the main path portion and a second accommodating portion configured to accommodate the intermediate portion and is formed such that a first width of the first accommodating portion is greater than a second width of the second accommodating portion.
[0034] According to the busbar accommodating structure having the above-described configuration, since the case is formed such that the width of the portion that houses the main path portion of the busbar is larger than the width of the portion that houses the intermediate portion of the busbar, even when dimensional tolerances of respective portions of the busbar are accumulated in an increasing manner, the length of the busbar exceeds an overall dimensional tolerance with which the busbar is supposed to be manufactured and the busbar is housed into the case without noticing the excess, the excess can be absorbed in the case by making the main path portion of the busbar bent since the case is provided with a portion having a large width. Accordingly, the case can be prevented from being damaged or the like.
[0035] The first accommodating portion may include at least one narrow portion provided along a direction in which the main path portion extends when the busbar is accommodated in the case, the narrow portion having a third width being smaller than the first width. The narrow portion may be formed with a rib protruding from the first accommodating portion in a direction perpendicular to the direction in which the main path portion extends. The rib may have a taper at an end side in a direction opposite to a direction in which the busbar is inserted into the case [0036] With this configuration, since the case is formed with the narrow portion at the portion that houses the main path portion of the busbar, positions of a bending position of the busbar can be controlled and (unnecessary) moving/ rattling of the main path portion within the case can be prevented, instead of simply accommodating the busbar that has a long shape.
[0037] The second accommodating portion may be a holding portion configured to hold the intermediate portion [0038] With this configuration, since the case is formed such that the portion that houses the intermediate portion of the busbar is also formed as a holding portion that holds the intermediate portion, the busbar can be held, and thus an accommodating state of the busbar in the case can be stabilized.
100391 The third width of the narrow portion may be greater than the second width of the holding portion 100401 With this configuration, since the narrow portion is formed to have a larger width than the holding portion, the narrow portion can be specialized as a control portion of the bending position of the busbar and a moving/rattling prevention portion of the main path portion. That is, the narrow portion can maintain a degree of freedom of bending of the busbar and can prevent the moving/rattling of the main path portion.
100411 The busbar may include a first busbar and a second busbar and the main path portions of each of the first busbar and the second busbar are arranged substantially in parallel with each other when the first busbar and the second busbar are accommodated in the case. The case may include a case body configured to accommodate the first busbar and the second busbar and a case lid configured to be attached to and cover the case body. The case body may be formed with a partition wall configured to, when the first busbar and the second busbar are accommodated in the case body, be positioned between the main path portions of each of the first busbar and the second busbar such that the partition wall partitions the first busbar and the second busbar. The case lid may be formed with a partition wall contact portion configured to, when the case lid is attached to the case body, contact an end portion of the partition wall. The narrow portion may be formed with a rib protruding from the partition wall of the first accommodating portion in the direction perpendicular to the direction in which the main path portion extend. The case lid may be formed with ribs extending along the partition wall contact 1 3' portion at both sides of the partition wall contact portion.
[0042] With this configuration, since the busbar includes the first busbar and the second busbar arid the case includes the case body and the case lid, a better form of the busbar accommodating structure can be provided.
[0043] According to another aspect of the embodiments described above, a high voltage connection device includes a busbar being electrically conductive and having a strip plate shape and a case being electrically insulative and configured to accommodate the busbar. The high voltage connection device is configured to be attached either between high voltage components, machines or a high voltage component and a machine. The busbar includes a main path portion, a plurality of terminal portions configured to be exposed from the case when the busbar is accommodated in the case, the plurality of terminal portions each being configured to be attached to the high voltage component or the machine and an intermediate portion provided between at least one of the plurality of terminal portions and the main path portion and being continuous with the main path portion in a bent manner or a linear mariner. The case includes a first accommodating portion configured to accommodate the main path portion and a second accommodating portion configured to accommodate the intermediate portion and is formed such that a first width of the first accommodating portion is greater than a second width of the second accommodating portion and further includes a dimension error absorbing portion configured to allow bending of the main path portion such that the dimension error absorbing portion absorbs a dimensional error of the busbar.
100441 According to the high voltage connection device having the above-described configuration, since the high voltage connection device is provided with the busbar accommodating structure having the above features, a better high voltage connection device can be provided
Claims (10)
- CLAIMS1. A busbar accommodating structure comprising: a busbar being electrically conductive and having a strip plate shape; and a case being electrically insulative and configured to accommodate the busbar, wherein the busbar includes a main path portion, a plurality of terminal portions configured to be exposed from the case when the busbar is accommodated in the case, and an intermediate portion provided between at least one of the plurality of terminal portions and the main path portion and being continuous with the main path portion in a bent manner or in a linear manner, and wherein the case includes a first accommodating portion configured to accommodate the main path portion and a second accommodating portion configured to accommodate the intermediate portion and is formed such that a first width of the first accommodating portion is greater than a second width of the second accommodating portion. is
- 2. The busbar accommodating structure according to claim 1, wherein the first accommodating portion includes at least one narrow portion provided along a direction in which the main path portion extends when the busbar is accommodated in the case, the narrow portion having a third width being smaller than the first 20 width.
- 3. The busbar accommodating structure according to claim 2, wherein the second accommodating portion is a holding portion configured to hold the intermediate portion.
- 4. The busbar accommodating structure according to claim 3, wherein the third width of the narrow portion is greater than the second width of the holding portion.
- 5. The busbar accommodating structure according to any one of claims 1 to 4, wherein the busbar includes a first busbar and a second busbar and the main path portions of each of the first busbar and the second busbar are arranged substantially in parallel with each other when the first busbar and the second busbar are accommodated in the case, wherein the case includes a case body configured to accommodate the first busbar and the second busbar and a case lid configured to be attached to and cover the case body, wherein the case body is formed with a partition wall configured to, when the first busbar and the second busbar are accommodated in the case body, be positioned between the main path portions of each of the first busbar and the second busbar such that the partition wall partitions the first busbar and the second busbar, and wherein the case lid is formed with a partition wall contact portion configured to, when the case lid is attached to the case body, contact an end portion of the partition wall.
- 6. The busbar accommodating structure according to claim 2, wherein the narrow portion is formed with a rib protruding from the first accommodating portion in a direction perpendicular to the direction in which the main path portion extends.
- 7. The busbar accommodating structure according to claim 6, wherein the rib has a taper at an end side in a direction opposite to a direction in which the busbar is inserted into the case
- 8. The busbar accommodating structure according to claim 5, wherein the narrow portion is formed with a rib protruding from the partition wall of the first accommodating portion in a direction perpendicular to the direction in which the main path portion extends.
- 9. The busbar accommodating structure according to claim 5, wherein the case lid is formed with ribs extending along the partition wall contact portion at both sides of the partition wall contact portion
- 10. A high voltage connection device comprising: a busbar being electrically conductive arid having a strip plate shape; and a case being electrically insulative and configured to accommodate the busbar, wherein the high voltage connection device is configured to be attached either between high voltage components, machines or a high voltage component and a machine, wherein the busbar includes: a main path portion; a plurality of terminal portions configured to be exposed from the case when the busbar is accommodated in the case, the plurality of terminal portions each being configured to be attached to the high voltage component or the machine; and an intermediate portion provided between at least one of the plurality of terminal portions and the main path portion and being continuous with the main path portion in a bent manner or a linear manner, and wherein the case includes a first accommodating portion configured to accommodate the main path portion and a second accommodating portion configured to accommodate the intermediate portion and is formed such that a first width of the first accommodating portion is greater than a second width of the second accommodating portion and further includes a dimension error absorbing portion configured to allow bending of the main path portion such that the dimension error absorbing portion absorbs a dimensional error of the busbar.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2020040666A JP2021145398A (en) | 2020-03-10 | 2020-03-10 | Bus bar accommodation structure and high voltage connection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB202103006D0 GB202103006D0 (en) | 2021-04-14 |
| GB2596382A true GB2596382A (en) | 2021-12-29 |
Family
ID=75377510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2103006.9A Pending GB2596382A (en) | 2020-03-10 | 2021-03-03 | Busbar accommodating structure and high voltage connection device |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2021145398A (en) |
| FR (1) | FR3108211A1 (en) |
| GB (1) | GB2596382A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013041706A (en) * | 2011-08-12 | 2013-02-28 | Auto Network Gijutsu Kenkyusho:Kk | Electric connection member |
| JP2016063653A (en) | 2014-09-18 | 2016-04-25 | 株式会社パイオラックス | Power distribution member |
| KR20160001383U (en) * | 2014-10-20 | 2016-04-29 | 한국단자공업 주식회사 | Busbar assembly |
| US20190356094A1 (en) * | 2017-08-09 | 2019-11-21 | Autonetworks Technologies, Ltd | Connection module |
| EP3584899A1 (en) * | 2018-06-19 | 2019-12-25 | Yazaki Corporation | Conductive member |
| WO2020012914A1 (en) * | 2018-07-09 | 2020-01-16 | 株式会社オートネットワーク技術研究所 | Terminal block and conductive path |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008312393A (en) * | 2007-06-15 | 2008-12-25 | Asmo Co Ltd | Bus bar device and brushless motor |
| JP2013020815A (en) * | 2011-07-11 | 2013-01-31 | Auto Network Gijutsu Kenkyusho:Kk | Battery wiring module |
| JP5951553B2 (en) * | 2013-04-26 | 2016-07-13 | 三菱重工オートモーティブサーマルシステムズ株式会社 | Inverter-integrated electric compressor |
| CN110476331B (en) * | 2017-03-31 | 2021-08-31 | 日本电产株式会社 | Bus bar unit and motor having the same |
| US12021428B2 (en) * | 2018-07-25 | 2024-06-25 | Mitsubishi Electric Corporation | Rotating electric machine |
-
2020
- 2020-03-10 JP JP2020040666A patent/JP2021145398A/en not_active Abandoned
-
2021
- 2021-03-03 GB GB2103006.9A patent/GB2596382A/en active Pending
- 2021-03-05 FR FR2102147A patent/FR3108211A1/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013041706A (en) * | 2011-08-12 | 2013-02-28 | Auto Network Gijutsu Kenkyusho:Kk | Electric connection member |
| JP2016063653A (en) | 2014-09-18 | 2016-04-25 | 株式会社パイオラックス | Power distribution member |
| KR20160001383U (en) * | 2014-10-20 | 2016-04-29 | 한국단자공업 주식회사 | Busbar assembly |
| US20190356094A1 (en) * | 2017-08-09 | 2019-11-21 | Autonetworks Technologies, Ltd | Connection module |
| EP3584899A1 (en) * | 2018-06-19 | 2019-12-25 | Yazaki Corporation | Conductive member |
| WO2020012914A1 (en) * | 2018-07-09 | 2020-01-16 | 株式会社オートネットワーク技術研究所 | Terminal block and conductive path |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2021145398A (en) | 2021-09-24 |
| FR3108211A1 (en) | 2021-09-17 |
| GB202103006D0 (en) | 2021-04-14 |
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