JP2017184339A - Electrical connection structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the number of components and the number of assembly steps when electric circuits respectively arranged in a space having different grade of a waterproof standard are electrically connected to each other.SOLUTION: A housing 100 is divided into a first space and a second space by a plate-like member 2. The plate-like member 2 has a first surface facing the first space and a second surface facing the second space and also has one opening penetrating through the first space and the second space. The opening is closed by a mold. A plurality of bus bars electrically connect an electrical circuit housed in the first space and an electrical circuit housed in the second space and penetrate through the first space from the second space via the mold. In the mold, a peripheral portion of a surface opposite to the second surface and the second surface are adhered to each other via a waterproof sealing member.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an electrical connection structure for electrically connecting electrical circuits.

  For example, in Patent Document 1, the interior of one housing is divided into a first space and a second space by a partition member, a first electric circuit (for example, an inverter) is disposed in the first space, and the second space is Disclosed is a structure in which two electric circuits (for example, a junction box) are arranged and the first electric circuit and the second electric circuit are electrically connected by one bus bar penetrating through an opening provided in the partition member. Yes.

JP 2014-204553 A

  In the structure of Patent Document 1, since the first space and the second space are created in one waterproof case, the space is waterproof between the first space and the second space (opening provided in the partition member). No structure was needed. On the other hand, when the waterproof standards required for the first space and the second space are different, it is necessary to seal the opening of the partition member using a waterproof sealing member. Further, when the first electric circuit and the second electric circuit are connected by a plurality of bus bars, a plurality of openings corresponding to the respective bus bars are provided in the partition member, and each opening is sealed by a waterproof sealing member. There is a need. Therefore, there is a problem that the number of parts and the number of assembly steps increase.

  An object of the present invention is to provide an electrical connection structure capable of reducing the number of parts for waterproofing and the number of assembling steps in a structure in which electrical circuits respectively arranged in spaces having different waterproof standards are electrically connected by a plurality of bus bars. The purpose is to provide.

  An electrical connection structure according to an aspect of the present invention is an electrical connection structure having a single housing whose interior is divided into a first space and a second space by a partition member, wherein the partition member includes the first member and the second member. A first surface facing the first space and a back surface of the first surface, having a second surface facing the second space, and penetrating the first surface and the second surface. A plurality of bus bars for electrically connecting the electrical circuit accommodated in the first space and the electrical circuit accommodated in the second space; and the opening. A mold that closes the portion, and the plurality of bus bars pass through the first space from the second space through the mold, and the surface of the mold faces the second surface. A surrounding portion and the second surface are the waterproof sealing member A configuration that is bonded via.

  The present invention can reduce the number of parts for waterproofing and the number of assembling steps in a structure in which electrical circuits arranged in spaces with different grades of waterproofing standards are electrically connected by a plurality of bus bars.

1 is an external perspective view showing an example of a housing according to Embodiment 1 of the present invention. 1 is an external perspective view showing an example of a first box-shaped member according to Embodiment 1 of the present invention. External appearance perspective view which shows an example of the 1st surface of the plate-shaped member which concerns on Embodiment 1 of this invention. External perspective view showing an example of the second surface of the plate-like member according to Embodiment 1 of the present invention. External appearance perspective view which shows an example of the 2nd box-shaped member which concerns on Embodiment 1 of this invention External appearance perspective view which shows an example of the bus-bar arrange | positioned at the 2nd box-shaped member which concerns on Embodiment 1 of this invention External appearance perspective view which shows an example of the mold which concerns on Embodiment 1 of this invention External appearance perspective view which shows an example of the mold which concerns on Embodiment 1 of this invention External perspective view showing a state where the second box-shaped member and the mold according to Embodiment 1 of the present invention are screwed together External perspective view showing a state in which a waterproof sealing member is arranged in the second box-shaped member and the mold according to Embodiment 1 of the present invention External appearance perspective view which shows the state by which the plate-shaped member was mounted in the 2nd box-shaped member which concerns on Embodiment 1 of this invention. 1 is an external perspective view showing a state in which a plate-like member and a mold according to Embodiment 1 of the present invention are screwed, and a plate-like member and a second box-shaped member are screwed. FIG. 12 is an external perspective view of the mold shown in FIG. External appearance perspective view which shows an example of the bus-bar and wire harness which concern on Embodiment 2 of this invention External appearance perspective view which shows an example of the bus-bar and wire harness which concern on Embodiment 2 of this invention External appearance perspective view which shows an example of the bus-bar, wire harness, and mold which concern on Embodiment 2 of this invention External appearance perspective view which shows an example of the bus-bar, wire harness, and mold which concern on Embodiment 2 of this invention External appearance perspective view which shows an example of the housing | casing which concerns on Embodiment 3 of this invention. External perspective view showing an example of a lid member according to Embodiment 3 of the present invention External appearance perspective view which shows an example of the 1st surface of the plate-shaped member which concerns on Embodiment 3 of this invention.

  An embodiment of an electrical connection structure of the present invention will be described with reference to the drawings. The electrical connection structure of the present invention includes the casing 100 described in the embodiment and the internal configuration (for example, bus bar, mold, etc.).

(Embodiment 1)
The first embodiment will be described below.

  First, the overall configuration of the housing 100 according to the present embodiment will be described with reference to FIG. FIG. 1 is an external perspective view showing an example of the housing 100.

  As shown in FIG. 1, the housing 100 includes a first box-shaped member 1, a plate-shaped member 2, and a second box-shaped member 3, and the interior of the casing 100 is a first space (for example, This is one housing divided into an internal space 6) described later and a second space (an internal space 14 described later). The first box member 1 and the plate member 2 are screwed together by a plurality of screws 4. The second box-shaped member 3 and the plate-like member 2 are screwed with a plurality of screws 5. The 1st box-shaped member 1, the plate-shaped member 2, and the 2nd box-shaped member 3 are metal, for example.

  Next, the 1st box-shaped member 1 is demonstrated using FIG. FIG. 2 is an external perspective view showing an example of the first box-shaped member 1.

  As shown in FIG. 2, the first box-shaped member 1 is a box-shaped (substantially rectangular parallelepiped) member whose one surface (bottom surface) is open. The opening surface of the first box-shaped member 1 is covered with a first surface of a plate-like member 2 described later.

  A first electric circuit (not shown) is accommodated in the internal space 6 (an example of the first space) of the first box-shaped member 1. The first electric circuit is connected to a second electric circuit (not shown) accommodated in an internal space 14 (an example of the second space; see FIG. 5) of the second box-shaped member 3 described later. It is a device that transmits power.

  In this embodiment, as an example, it is assumed that the waterproof standard required for the first electric circuit is lower than the waterproof standard required for the second electric circuit. Therefore, the inner space 6 of the first box-shaped member 1 is not required to have higher waterproofness than the inner space 14 of the second box-shaped member 3.

  As shown in FIG. 2, the first box-shaped member 1 is formed with a through hole 7 through which the screw 4 shown in FIG. 1 is inserted.

  Next, the plate-like member 2 will be described with reference to FIGS. FIG. 3 is an external perspective view showing an example of the first surface of the plate-like member 2. FIG. 4 is an external perspective view showing an example of the second surface (back surface of the first surface) of the plate-like member 2.

  The plate-like member 2 shown in FIGS. 3 and 4 is a plate-like member (also referred to as a partition member) that partitions the internal space 6 of the first box-shaped member 1 and the internal space 14 of the second box-shaped member 3. is there. The plate-like member 2 constitutes the bottom surface of the first box-shaped member 1 and the top surface of the second box-shaped member 3.

  As shown in FIG. 3, a frame 8 is formed on the first surface of the plate-like member 2. The frame body 8 may be provided integrally with the first surface, or may be provided detachably with respect to the first surface.

  The frame body 8 is provided with a screw receiving portion (screw hole) 9 into which the screw 4 shown in FIG. 1 is inserted. When the screw 4 is inserted into the screw receiving portion 9 through the through hole 7, the first box-shaped member 1 and the plate-like member 2 are screwed together.

  As shown in FIGS. 3 and 4, a central portion of the plate-like member 2 is provided with one opening 10 penetrating the first surface and the second surface of the plate-like member 2. Further, four through holes 11 penetrating the first surface and the second surface of the plate-like member 2 are provided in the peripheral portion of the opening 10.

  Further, as shown in FIGS. 3 and 4, a through hole 12 through which the screw 5 shown in FIG. 1 is inserted is provided in the outer peripheral portion of the plate-like member 2.

  Next, the 2nd box-shaped member 3 is demonstrated using FIG. FIG. 5 is an external perspective view showing an example of the second box-shaped member 3.

  As shown in FIG. 5, the second box-shaped member 3 is a box-shaped (substantially rectangular parallelepiped) member whose one surface (upper surface) is open. The opening surface of the second box-shaped member 3 is covered with the second surface of the plate-like member 2 described above.

  A second electric circuit (not shown) is accommodated in the internal space 14 of the second box-shaped member 3. The second electric circuit is a device that transmits electric power to and from the first electric circuit housed in the internal space 6 of the first box-shaped member 1.

  In this embodiment, as an example, it is assumed that the waterproof standard required for the second electric circuit is higher than the waterproof standard required for the first electric circuit. Therefore, the inner space 14 of the second box-shaped member 3 is required to have higher waterproofness than the inner space 6 of the first box-shaped member 1.

  As shown in FIG. 5, a screw receiving member 15 protruding from the bottom surface of the second box-shaped member 3 is provided in the internal space 14 of the second box-shaped member 3. The screw receiving member 15 may be provided integrally with the bottom surface of the second box-shaped member 3 or may be provided detachably with respect to the bottom surface of the second box-shaped member 3.

  The screw receiving member 15 is provided with a positioning receiving portion 16 (hole) into which a positioning projection 31 (see FIG. 8) of the mold 28 described later is inserted.

  Further, the screw receiving member 15 is provided with a screw receiving portion 17 (screw hole) into which a screw 33 (see FIG. 9) described later is inserted.

  Further, as shown in FIG. 5, a groove 18 in which a waterproof sealing member 32 (see FIG. 10) to be described later is disposed is provided around the opening surface of the second box-shaped member 3.

  Further, as shown in FIG. 5, a screw receiving portion 19 (screw hole) into which the screw 5 shown in FIG. 1 is inserted is provided on the outer peripheral portion of the second box-shaped member 3. When the screw 5 is inserted into the screw receiving portion 19 through the through hole 12 of the plate-like member 2, the second box-shaped member 3 and the plate-like member 2 are screwed together.

  Next, a bus bar that electrically connects the first electric circuit and the second electric circuit will be described with reference to FIG. FIG. 6 is an external perspective view showing an example of a bus bar in the internal space 14 of the second box-shaped member 3. In FIG. 6, for convenience of explanation, illustration of a mold 28 described later is omitted.

  As shown in FIG. 6, bus bars 20, 21, 22, 23, 25, and 26 are arranged in the internal space 14 of the second box-shaped member 3.

  First, the bus bar 20 will be described.

  A through hole 20 a is provided at one end of the bus bar 20, and a through hole 20 b is provided at the other end of the bus bar 20.

  A screw (not shown) is inserted through the through hole 20a. The screw is inserted into the screw receiving portion (not shown) of the second electric circuit through the through hole 20a, whereby the bus bar 20 and the second electric circuit are screwed.

  A screw (not shown) is inserted into the through hole 20b. For example, the screw is inserted into a through hole (not shown) provided in the through hole 20b and the first electric circuit (or a bus bar (not shown) electrically connected to the first electric circuit), whereby the bus bar 20 And the first electrical circuit are screwed together.

  Next, the bus bar 21 will be described.

  A through hole 21 a is provided at one end of the bus bar 21, and a through hole 21 b is provided at the other end of the bus bar 21.

  A screw (not shown) is inserted through the through hole 21a. The screw is inserted into the screw receiving portion (not shown) of the second electric circuit via the through hole 21a, whereby the bus bar 21 and the second electric circuit are screwed.

  A screw (not shown) is inserted through the through hole 21b. For example, when the screw is inserted into a through hole (not shown) provided in the through hole 21b and the first electric circuit (or a bus bar (not shown) electrically connected to the first electric circuit), the bus bar 21 And the first electrical circuit are screwed together.

  Next, the bus bars 22 and 23 will be described.

  A through hole 22 a is provided at one end of the bus bar 22, and a through hole 22 b is provided at the other end of the bus bar 22. In addition, a through hole 23 a is provided at one end of the bus bar 23, and a through hole 23 b is provided at the other end of the bus bar 23.

  Screws 24 are inserted through the through holes 22a and the through holes 23b. Thereby, the bus bar 22 and the bus bar 23 are connected. The bus bar 22 and the bus bar 23 may be integrally formed.

  A screw (not shown) is inserted through the through hole 23a. The screw is inserted into a screw receiving portion (not shown) of the second electric circuit through the through hole 23a, whereby the bus bar 23 and the second electric circuit are screwed.

  A screw (not shown) is inserted through the through hole 22b. For example, the screw is inserted into a through hole (not shown) provided in the through hole 22b and the first electric circuit (or a bus bar (not shown) electrically connected to the first electric circuit), whereby the bus bar 22 And the first electrical circuit are screwed together.

  Next, the bus bars 25 and 26 will be described.

  A through hole 25 a is provided at one end of the bus bar 25, and a through hole 25 b is provided at the other end of the bus bar 25. In addition, a through hole 26 a is provided at one end of the bus bar 26, and a through hole 26 b is provided at the other end of the bus bar 26.

  A screw 27 is inserted through the through hole 25a and the through hole 26b. Thereby, the bus bar 25 and the bus bar 26 are connected. The bus bar 25 and the bus bar 26 may be integrally formed.

  A screw (not shown) is inserted through the through hole 26a. The screw is inserted into a screw receiving portion (not shown) of the second electric circuit through the through hole 26a, whereby the bus bar 26 and the second electric circuit are screwed. A second electrical circuit (screw receiving portion thereof) electrically connected to the first electrical circuit is provided at a position away from the opening 10 for circuit design and layout optimization of the second electrical circuit. Sometimes. Therefore, the bus bars 23 and 26 are used to extend.

  A screw (not shown) is inserted through the through hole 25b. For example, the screw is inserted into a through hole (not shown) provided in the through hole 25b and the first electric circuit (or a bus bar (not shown) electrically connected to the first electric circuit), whereby the bus bar 25 And the first electrical circuit are screwed together.

  The bus bars 20, 21, 22, 25 are insert-molded with a resin having insulating properties and heat resistance (for example, polybutylene terephthalate resin or nylon). In the present embodiment, the resin molded by insert molding is referred to as “mold 28”.

  Next, the mold 28 will be described with reference to FIGS. FIG. 7 is an external perspective view showing the upper surface side of the mold 28. FIG. 8 is an external perspective view showing the bottom side of the mold 28.

  As shown in FIGS. 7 and 8, the mold 28 covers a part of the bus bars 20, 21, 22, and 25. The part mentioned here includes, for example, a part below the formation part of the through holes 20b, 21b, 22b, and 25b and at least a part inserted through the opening 10.

  Further, as shown in FIG. 7, a screw receiving portion (screw hole) 29 into which a screw 35 (see FIG. 12) to be described later is inserted is provided on the upper surface of the mold 28. Note that the upper surface of the mold 28 refers to a surface facing the second surface of the plate-like member 2.

  As shown in FIG. 7, the upper surface of the mold 28 is provided with a protruding portion 28 a that protrudes upward from the opening surface of the screw receiving portion 29 and closes the opening portion 10. In the protruding portion 28a, the portions where the through holes 20b, 21b, 22b, and 25b are formed are exposed to the outside. This protrusion 28a is a part that closes the opening 10 of the plate-like member 2 (see FIGS. 11 and 12).

  Further, as shown in FIG. 7, a groove portion 13 in which a waterproof sealing member 34 (see FIG. 10) to be described later is disposed is provided on the upper surface of the mold 28 along the outer periphery of the upper surface of the mold 28. . The groove 13 is provided on the outer peripheral side of the mold 28 relative to the outer periphery of the protruding portion 28 a, and is provided on the outer peripheral side of the mold 28 relative to the screw receiving portion (screw hole) 29.

  Further, as shown in FIG. 8, a positioning projection 31 to be inserted into the positioning receiving portion 16 (see FIG. 5) described above is provided on the bottom surface of the mold 28.

  As shown in FIGS. 7 and 8, a through hole 30 (screw hole) through which a screw 33 (see FIG. 9) described later is inserted is provided on the side surface of the mold 28.

  Next, the screwing of the mold 28 and the second box-shaped member 3 will be described with reference to FIG. FIG. 9 is an external perspective view showing a state in which the second box-shaped member 3 and the mold 28 are screwed together.

  First, the positioning projection 31 shown in FIG. 8 is inserted into the positioning receiver 16 shown in FIG. Then, as shown in FIG. 9, the screw 33 is inserted into the screw receiving portion 17 shown in FIG. 5 through the through hole 30 shown in FIG. 8. Thereby, the 2nd box-shaped member 3 and the mold 28 are screwed.

  Next, the screwing of the second box-shaped member 3 and the plate-like member 2 will be described with reference to FIGS. 9 to 13. FIG. 10 is an external perspective view showing a state in which a waterproof sealing member is disposed on the second box-shaped member 3 and the mold 28. FIG. 11 is an external perspective view showing a state in which the plate-like member 2 is placed on the second box-shaped member 3. FIG. 12 is an external perspective view showing a state in which the plate-like member 2 and the mold 28 are screwed, and the plate-like member 2 and the second box-shaped member 3 are screwed. FIG. 13 is an external perspective view in which the illustration of the mold 28 shown in FIG. 12 is omitted.

  After the second box-shaped member 3 and the mold 28 are screwed together with screws 33 as shown in FIG. 9, a waterproof sealing member 34 is disposed in the groove 13 shown in FIG. 9, as shown in FIG. Then, the waterproof sealing member 32 is disposed in the groove portion 18 shown in FIG. The waterproof sealing members 32 and 34 are elastic members, for example, silicon or ethylene propylene rubber.

  The waterproof sealing members 32 and 34 arranged in the grooves 13 and 18 protrude upward as shown in FIG. 10, but are screwed and plated between the plate-like member 2 and the second box-shaped member 3 described later. It is crushed by screwing the shaped member 2 and the mold 28 together. Thereby, the 2nd surface of the plate-shaped member 2 and the surrounding part of the opening surface of the 2nd box-shaped member 3 are adhere | attached without gap. Further, the second surface of the plate-like member 2 and the upper surface of the mold 28 (the surface other than the protruding portion 28a) are bonded without a gap.

  After the waterproof sealing members 32 and 34 are arranged as shown in FIG. 10, the plate-like member 2 is placed on the second box-shaped member 3 as shown in FIG. 11. At this time, the protrusion 28 a is inserted into the opening 10 of the plate-like member 2 and closes the opening 10. At this time, the position of the through hole 11 of the plate-like member 2 and the position of the screw receiving portion 29 (see FIGS. 7 and 9) of the mold 28 coincide with each other. At this time, the position of the through hole 12 of the plate-like member 2 and the position of the screw receiving portion 19 of the second box-shaped member 3 coincide.

  After the plate-like member 2 is placed on the second box-shaped member 3 as shown in FIG. 11, the plate-like member 2 and the second box-shaped member 3 are used with screws 5 as shown in FIG. Then, the plate member 2 and the mold 28 are screwed using the screws 35. Specifically, the plate-like member 2 and the second box-shaped member 3 are screwed together by inserting the screws 5 into the through holes 12 and the screw receiving portions 19 shown in FIG. Further, the plate member 2 and the mold 28 are screwed by inserting the screw 35 into the through hole 11 and the screw receiving portion 29 (see FIGS. 7 and 9) shown in FIG.

  FIG. 13 shows a state where the projection 28a is omitted in FIG. As shown in FIG. 13, the bus bars 20, 21, 22, 25 are respectively inserted through the openings 10. In addition, a portion where the through hole 20b is formed in the bus bar 20, a portion where the through hole 21b is formed in the bus bar 21, a portion where the through hole 22b is formed in the bus bar 22, and a portion where the through hole 25b is formed in the bus bar 25 are respectively plate-like members. 2 is located above the first surface. In other words, each of the forming portions is located in the internal space 6 of the first box-shaped member 1.

  The screwing of the first box-shaped member 1 and the plate-like member 2 will be described with reference to FIG.

  After screwing the plate-like member 2 and the second box-shaped member 3 and screwing the plate-like member 2 and the mold 28 as shown in FIG. 12, as shown in FIG. The box-shaped member 1 is placed on the plate-like member 2. At this time, the position of the through hole 7 (see FIG. 2) of the first box-shaped member 1 and the position of the screw receiving portion 9 (see FIG. 12) formed in the frame body 8 of the plate-like member 2 coincide. .

  And the 1st box-shaped member 1 and the plate-shaped member 2 are screwed by inserting the screw 4 in the through-hole 7 shown in FIG. 2, and the screw receiving part 9 shown in FIG. Thereby, the housing | casing 100 shown in FIG. 1 is completed.

  As described above, according to the present embodiment, a plurality of bus bars 20, 21, 22, and 25 are inserted into one opening 10, and the opening 10 is closed by the mold 28 that insert-molds these bus bars. The mold 28 and the plate-like member 2 are brought into close contact with each other via the waterproof sealing member 32, and the second box-shaped member 3 and the plate-like member 2 are brought into close contact with each other through the waterproof sealing member 34. That is, even when there are a plurality of bus bars that need to be inserted between spaces having different grades of waterproof standards (internal spaces 6 and 14), the plurality of bus bars 20, 21, 22, and 25 are converged so that one By providing an opening corresponding to each of the plurality of bus bars by being inserted through the opening 10 and closing the opening (waterproof), the waterproofing is performed while reducing the number of parts and assembly man-hours for waterproofing. It is possible to ensure the sex.

(Embodiment 2)
Next, a second embodiment will be described.

  In the first embodiment, the mold 28 and the second box-shaped member 3 are screwed together with the screws 33, and the mold 28 and the plate-like member 2 are screwed together with the screws 35. Since it is fastened from both the upper and lower directions, a gap is generated between the plate-like member 2 and the mold 28, and the waterproof property of the internal space 14 may be weakened. Therefore, the downward fastening (screw fastening between the mold 28 and the second box-shaped member 3 by the screw 33) is stopped, and the upward fastening (screw fastening between the mold 28 and the plate-like member 2 by the screw 35) only. Can be considered. However, since the plurality of bus bars 20, 21, 22, 23, 25, 26 having high rigidity are connected and fixed to the second electric circuit, when the mold 28 is lifted upward by fastening in the upward direction, There is a possibility that a load is generated at a predetermined place of the bus bar or the second electric circuit. Therefore, in the present embodiment, by adopting a configuration in which a flexible wire harness is connected to a non-flexible bus bar, the upward direction of the mold by screwing the mold 28 and the plate-like member 2 is adopted. Lifting is allowed to ensure waterproofness, and to suppress generation of a load at a predetermined portion of the bus bar or the second electric circuit.

  Hereinafter, although the configuration of the present embodiment will be described, the first box-shaped member 1, the plate-shaped member 2, and the second box-shaped member 3 constituting the housing 100 are basically the same as those of the first embodiment. The description thereof will be omitted.

  First, an example of the connection configuration between the bus bar and the wire harness according to the present embodiment will be described with reference to FIGS. 14 and 15. 14 and 15 are external perspective views showing examples of the bus bar and the wire harness according to the present embodiment. In FIG. 14 and FIG. 15, the same constituent elements as those used in the description of the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  14 and 15, the wire harnesses 36 to 39 have flexibility, while the bus bars 23, 26, and 40 to 43 do not have flexibility.

  First, the wire harness 36 and the bus bar 43 will be described.

  A through hole 36 a is provided at one end of the wire harness 36, and a through hole 36 b is provided at the other end of the wire harness 36. In addition, a through hole 43 a is provided at one end of the bus bar 43, and a through hole 43 b is provided at the other end of the bus bar 43.

  A screw (not shown) is inserted through the through hole 36a. The screw is inserted into the screw receiving portion (not shown) of the second electric circuit through the through hole 36a, so that the wire harness 36 and the second electric circuit are screwed.

  A screw 44 (see FIG. 17) is inserted through the through hole 36b and the through hole 43a. Thereby, the wire harness 36 and the bus bar 43 are connected.

  A screw (not shown) is inserted through the through hole 43b. For example, the screw is inserted into a through hole (not shown) provided in the through hole 43b and the first electric circuit (or a bus bar (not shown) electrically connected to the first electric circuit), whereby the bus bar 43 And the first electrical circuit are screwed together.

  Next, the wire harness 37 and the bus bar 40 will be described.

  A through hole 37 a is provided at one end of the wire harness 37, and a through hole 37 b is provided at the other end of the wire harness 37. In addition, a through hole 40 a is provided at one end of the bus bar 40, and a through hole 40 b is provided at the other end of the bus bar 40.

  A screw (not shown) is inserted through the through hole 37a. The screw is inserted into the screw receiving portion (not shown) of the second electric circuit through the through hole 37a, so that the wire harness 37 and the second electric circuit are screwed.

  A screw 45 (see FIG. 17) is inserted through the through hole 37b and the through hole 40a. Thereby, the wire harness 37 and the bus bar 40 are connected.

  A screw (not shown) is inserted through the through hole 40b. For example, when the screw is inserted into a through hole (not shown) provided in the through hole 40b and the first electric circuit (or a bus bar (not shown) electrically connected to the first electric circuit), the bus bar 40 And the first electrical circuit are screwed together.

  Next, the wire harness 38 and the bus bar 41 will be described.

  A through hole 38 a is provided at one end of the wire harness 38, and a through hole 38 b is provided at the other end of the wire harness 38. In addition, a through hole 41 a is provided at one end of the bus bar 41, and a through hole 41 b is provided at the other end of the bus bar 41.

  The screw 24 is inserted into the through hole 38 a and the through hole 23 b of the bus bar 23. Thereby, the wire harness 38 and the bus bar 23 are connected.

  A screw 46 (see FIG. 17) is inserted through the through hole 38b and the through hole 41a. Thereby, the wire harness 38 and the bus bar 41 are connected.

  A screw (not shown) is inserted through the through hole 41b. For example, the screw is inserted into a through hole (not shown) provided in the through hole 41b and the first electric circuit (or a bus bar (not shown) electrically connected to the first electric circuit), whereby the bus bar 41 And the first electrical circuit are screwed together.

  Next, the wire harness 39 and the bus bar 42 will be described.

  A through hole 39 a is provided at one end of the wire harness 39, and a through hole 39 b is provided at the other end of the wire harness 39. Also, a through hole 42 a is provided at one end of the bus bar 42, and a through hole 42 b is provided at the other end of the bus bar 42.

  Screws 27 are inserted through the through holes 39a and the through holes 26b of the bus bar 26. Thereby, the wire harness 39 and the bus bar 26 are connected.

  A screw 47 (see FIG. 17) is inserted through the through hole 39b and the through hole 42a. Thereby, the wire harness 39 and the bus bar 42 are connected.

  A screw (not shown) is inserted through the through hole 42b. For example, the screw is inserted into a through hole (not shown) provided in the through hole 42b and the first electric circuit (or a bus bar (not shown) electrically connected to the first electric circuit), whereby the bus bar 42 And the first electrical circuit are screwed together.

  The bus bars 40 to 43 are inserted so that they can be screwed to the through holes 40a to 43a and the through holes 40b to 43b with a resin having insulating properties and heat resistance (for example, polybutylene terephthalate resin or nylon). Molded (see FIGS. 16 and 17). The mold 28b formed by this insert molding is substantially the same as the shape of the mold 28 described in the first embodiment.

  Next, the mold 28b will be described with reference to FIGS. FIG. 16 is an external perspective view showing the upper surface side of the mold 28b. FIG. 17 is an external perspective view showing the bottom side of the mold 28b.

  As shown in FIGS. 16 and 17, the mold 28 b covers a part of the bus bars 40 to 43. The part here includes, for example, a part below the formation part of the through holes 40b, 41b, 42b, 43b and at least a part inserted through the opening 10.

  Also, as shown in FIGS. 16 and 17, the mold 28b does not include the through hole 30 (see FIGS. 7 and 8) described in the first embodiment. Although not shown, the receiving member 15 of the second box-shaped member 3 does not include the screw receiving portion 17 (see FIGS. 5 and 6). That is, in the present embodiment, screwing of the mold 28b and the second box-shaped member 3 with the screw 33 shown in FIG. 9 is not performed.

  Specifically, first, the position of the mold 28b is temporarily fixed by inserting the positioning protrusion 31 shown in FIG. 17 into the positioning receiving portion 16 shown in FIG. Here, since the mold 28b is not fastened to the second box-shaped member 3, it can be displaced in the vertical direction. In FIG. 5, the screw receiving portion 17 is illustrated, but in the second embodiment, the screw receiving portion 17 is not necessary.

  Next, as in Embodiment 1, the plate-like member 2 is placed on the second box-shaped member 3 as shown in FIG. At this time, the protrusion 28 a is inserted into the opening 10 of the plate-like member 2 and closes the opening 10. At this time, the position of the through hole 11 of the plate-like member 2 coincides with the position of the screw receiving portion 29 (see FIG. 16) of the mold 28.

  After the plate-like member 2 is placed on the second box-shaped member 3 as shown in FIG. 11, the plate-like member 2 and the mold 28b are screwed using screws 35 as shown in FIG. . Specifically, the plate member 2 and the mold 28b are screwed by inserting the screw 35 into the through hole 11 and the screw receiving portion 29 (see FIG. 16) shown in FIG.

  At this time, as described above, the mold 28b and the second box-shaped member 3 are not screwed together, so that the mold 28b is displaced upward (to the plate-like member 2 side) by screwing the screws 35. . Thereby, the waterproof sealing member 34 provided along the outer periphery of the mold 28b is surely crushed by the plate-like member 2 and the mold 28b, and the second surface of the plate-like member 2 and the upper surface (projecting portion) of the mold 28b. A surface other than 28a) is adhered without any gap, and waterproofness is ensured.

  Even if the mold 28b is displaced upward (on the plate-like member 2 side), flexible wire harnesses 36 to 39 are interposed between the bus bars 40 to 43 and the second electric circuit. Therefore, it is possible to absorb the position shift due to the displacement of the mold 28b with the wire harnesses 36 to 39, and it is possible to suppress the load on the bus bars 23 and 26 and the second electric circuit.

  As described above, according to the present embodiment, the following operational effects can be obtained in addition to the operational effects of the first embodiment. In other words, in the present embodiment, by adopting a configuration in which a flexible wire harness is connected to a non-flexible bus bar, the upward direction of the mold by screwing the mold 28 and the plate-like member 2 is adopted. Lifting is allowed, and the occurrence of a load at a predetermined location of the housing 100 can be suppressed.

(Embodiment 3)
Next, Embodiment 3 will be described.

  Hereinafter, the configuration of the present embodiment will be described with reference to FIGS. 18 to 20, the same reference numerals are given to the same components as those in FIGS. 1 to 17, and description thereof is omitted.

  First, the overall configuration of the housing 101 according to the present embodiment will be described with reference to FIG. FIG. 18 is an external perspective view showing an example of the housing 101.

  As shown in FIG. 18, the housing 101 includes a lid member 50, a plate-like member 2, and a second box-shaped member 3 (hereinafter, referred to as a box-shaped member 3). 2 is a single housing whose interior is divided into a first space (for example, an internal space 6 of a frame body 8a described later) and a second space (for example, an internal space 14 of the box-shaped member 3). The lid member 50 and the frame body 8 a of the plate-like member 2 are screwed with a plurality of screws 4. The box-shaped member 3 and the plate-like member 2 are screwed with a plurality of screws 5. The lid member 50, the plate-like member 2, and the box-shaped member 3 are made of metal, for example.

  Next, the lid member 50 will be described with reference to FIG. FIG. 19 is an external perspective view showing an example of the lid member 50.

  As shown in FIG. 19, the lid member 50 is a plate-like member, and a through-hole 51 through which the screw 4 shown in FIG.

  Next, the plate-like member 2 will be described with reference to FIG. FIG. 20 is an external perspective view showing an example of the first surface of the plate-like member 2.

  20 is a plate that partitions the internal space 6 (an example of the first space) of the frame 8a and the internal space 14 (see FIG. 5; an example of the second space) of the box-shaped member 3. It is a shape member (it is also called a partition member). The first surface of the plate-like member 2 faces the internal space 6, and the second surface of the plate-like member 2 (the back surface of the first surface) faces the internal space 14. The appearance of the second surface of the plate-like member 2 is the same as that shown in FIG. 5 described in the first embodiment.

  As shown in FIG. 20, a frame body 8 a is formed on the first surface of the plate-like member 2. The frame 8a may be provided integrally with the first surface, or may be provided detachably with respect to the first surface.

  The frame 8a shown in FIG. 20 is taller than the frame 8 described in the first embodiment (see, for example, FIG. 3). In the present embodiment, the space surrounded by the frame body 8 a becomes the internal space 6.

  A first electric circuit (not shown) is accommodated in the internal space 6 shown in FIG. 20 as in the first and second embodiments. The first electric circuit is a device that transmits electric power to and from a second electric circuit (not shown) housed in an internal space 14 (see FIG. 5) of the box-shaped member 3 described later.

  In this embodiment, as an example, it is assumed that the waterproof standard required for the first electric circuit is lower than the waterproof standard required for the second electric circuit. Therefore, the inner space 6 surrounded by the frame body 8 a is not required to have higher waterproofness than the inner space 14 of the box-shaped member 3.

  As shown in FIG. 20, the frame body 8a is provided with a screw receiving portion (screw hole) 9 into which the screw 4 shown in FIG. 18 is inserted. By inserting the screw 4 into the screw receiving portion 9 through the through hole 51 (see FIG. 19), the lid member 50 and the frame body 8a are screwed together. Thereby, the opening surface of the frame 8a is covered with the lid member 50.

  Further, as shown in FIG. 20, one opening 10 penetrating the first surface and the second surface of the plate-like member 2 is provided in the central portion of the plate-like member 2. Further, four through holes 11 penetrating the first surface and the second surface of the plate-like member 2 are provided in the peripheral portion of the opening 10.

  As shown in FIG. 20, a through hole 12 through which the screw 5 shown in FIG. 18 is inserted is provided in the outer peripheral portion of the plate-like member 2.

  In the present embodiment, the plate-like member 2 on which the frame body 8a is formed is used, but the present invention is not limited to this. For example, instead of the plate-like member 2 shown in FIG. 20, a box-shaped member having an open upper surface (hereinafter referred to as a third box-shaped member) may be used. In that case, the upper surface (opening surface) of the third box-shaped member is covered with the lid member 50, and the bottom surface of the third box-shaped member covers the upper surface (opening surface) of the box-shaped member 3. At this time, the bottom surface of the third box-shaped member functions as a partition member that partitions the internal space of the third box-shaped member and the internal space 14 of the box-shaped member 3.

  The appearance of the box-shaped member 3 is the same as in FIG. The configuration (for example, bus bar, mold, etc.) in the internal space 14 of the box-shaped member 3 is the same as the configuration of the first embodiment (for example, see FIGS. 6 to 10) or the configuration of the second embodiment (for example, FIG. 14). To FIG. 17).

  As described above, according to the present embodiment, the operational effects of Embodiment 1 or Embodiment 2 can be obtained.

  As mentioned above, although Embodiment 1-3 of this invention was demonstrated, the said description is an example and various deformation | transformation are possible. Hereinafter, modified examples will be described.

(Modification 1)
In each said embodiment, although the case where the predetermined members were screwed together was mentioned as an example, the connection method of predetermined members is not limited to screwing.

(Modification 2)
In each said embodiment, although the case where the number of the bus bars which penetrate the opening part 10 was mentioned was mentioned as an example, the number of the bus bars which penetrate the opening part 10 is not limited to this, If it is multiple Good.

(Modification 3)
In each said embodiment, the case where the 2nd electric circuit connected to bus bar 20 (or wire harness 36), bus bar 21 (or wire harness 37), bus bar 23, and bus bar 26 is one common is taken as an example. A plurality of different second electric circuits may be used. For example, the bus bar 20 (or the wire harness 36) and the bus bar 21 (or the wire harness 37) are connected to the second electric circuit A, and the bus bar 23 and the bus bar 26 are connected to the second electric circuit B (the second electric circuit A). May be connected to different ones).

  In each of the above embodiments, the first electric circuit connected to the bus bar 20 (or bus bar 43), the bus bar 21 (or bus bar 40), the bus bar 22 (or bus bar 41), and the bus bar 25 (or bus bar 42) is common. Although the case of one is given as an example, a plurality of different first electric circuits may be used. For example, the bus bar 20 (or bus bar 43) and the bus bar 21 (or bus bar 40) are connected to the first electric circuit A, and the bus bar 22 (or bus bar 41) and the bus bar 25 (or bus bar 42) are connected to the first electric circuit B. It may be connected to (different from the first electric circuit A).

(Modification 4)
In each of the above embodiments, the waterproof standard required for the second electric circuit is higher than the waterproof standard required for the first electric circuit, and the internal space 14 of the second box-shaped member 3 is: Although the case where the waterproofness higher than the internal space 6 of the 1st box-shaped member 1 was requested | required was mentioned as an example, the reverse may be sufficient. That is, the waterproof standard grade required for the first electric circuit is higher than the waterproof standard grade required for the second electric circuit, and the internal space 6 of the first box-shaped member 1 has the second box shape. The waterproof property higher than the internal space 14 of the member 3 may be required.

(Modification 5)
In each of the above-described embodiments, the case where the positioning receiving portion 16 and the screw receiving portion 17 are provided on the receiving member 15 that protrudes from the bottom surface of the second box-shaped member 3 is described as an example. Not. For example, instead of the receiving member 15, a rod-shaped member provided with the positioning receiving portion 16 and the screw receiving portion 17 may be used.

(Modification 6)
In each of the embodiments described above, the casing 100 is configured by combining the first box-shaped member 1, the plate-shaped member 2, and the second box-shaped member 3, but the present invention is not limited thereto. For example, the casing 100 is one casing (one casing that cannot be separated into a plurality of casings) in which the first box-shaped member 1, the plate-shaped member 2, and the second box-shaped member 3 are not aligned. Also good. Further, in each of the above-described embodiments, the case where there is one plate-like member 2 has been described as an example, but a plurality of plate-like members 2 may be provided.

(Modification 7)
In the second embodiment, the configuration in which the wire harness 38 is connected to the bus bar 23 and the wire harness 39 is connected to the bus bar 26 has been described as an example, but the present invention is not limited to this. For example, in FIGS. 14 and 15, a wire harness may be used instead of the bus bar 23 and the bus bar 26.

  Alternatively, for example, in FIGS. 14 and 15, a wire harness is used instead of the bus bar 23 and the bus bar 26, and a bus bar (for example, FIG. 6) is used instead of the wire harness 38 and the bus bar 41, and the wire harness 39 and the bus bar 42. Alternatively, the bus bars 22 and 25) shown in FIG. In other words, a flexible wire harness may be interposed between the insert-molded bus bars 40 to 43 and the second electric circuit.

(Modification 8)
In each said embodiment, although the case where the one opening part 10 of the plate-shaped member 2 was provided was illustrated, it is not limited to this. For example, two openings 10 may be provided, and a mold may be provided corresponding to each opening 10. However, the number of openings 10 is preferably smaller than the number of bus bars (20, 21, 22, 25).

(Modification 9)
In the said Embodiment 3, although the frame 8a illustrated the case where 4 side surfaces of the internal space 6 were comprised, it is not limited to this. For example, only a part of the frame may be increased in height and only one side surface of the internal space 6 may be configured. In this case, a member in which one side surface of the first box-shaped member 1 of Embodiment 1 is opened is arranged so as to cover the remaining three side surfaces and the upper surface. In addition, it is preferable that the connector that connects the first electric circuit and the electric circuit outside the housing is provided on a frame that forms the side surface of the internal space 6.

  The present invention can be applied to all techniques for electrically connecting electrical circuits.

DESCRIPTION OF SYMBOLS 1 1st box-shaped member 2 Plate-shaped member 3 2nd box-shaped member 4, 5, 24, 27, 33, 35, 44, 45, 46, 47 Screw 6, 14 Internal space 7, 11, 12, 20a 20b, 21a, 21b, 22a, 22b, 23a, 23b, 25a, 25b, 26a, 26b, 30, 36a, 36b, 37a, 37b, 38a, 38b, 39a, 39b, 40a, 40b, 41a, 41b, 42a , 42b, 43a, 43b Through hole 8, 8a Frame 9, 17, 19, 29 Screw receiving part 10 Opening part 13, 18 Groove part 15 Screw receiving member 16 Positioning receiving part 20, 21, 22, 23, 25, 26 , 40, 41, 42, 43 Bus bar 28, 28b Mold 28a Protrusion 31 Positioning protrusion 32, 34 Waterproof sealing member 36, 37, 38, 39 Ness 50 lid member 100 and 101 housing

Claims (9)

An electrical connection structure having one housing whose interior is divided into a first space and a second space by a partition member,
The partition member is a first surface facing the first space, a back surface of the first surface, and has a second surface facing the second space, and the first surface and the second surface. At least one opening extending through the surface,
The electrical connection structure is:
A plurality of bus bars that electrically connect the electrical circuit housed in the first space and the electrical circuit housed in the second space;
A mold for closing the opening,
The plurality of bus bars pass through the first space from the second space through the mold,
In the mold, the peripheral portion of the surface facing the second surface and the second surface are bonded via the waterproof sealing member.
Electrical connection structure. The mold is
Having a protruding portion that penetrates while closing the opening,
The electrical connection structure according to claim 1. The partition member has at least one through hole,
The mold has at least one screw receiving portion,
By inserting a screw into the through hole of the partition member and the screw receiving portion of the mold, the partition member and the mold are screwed.
The electrical connection structure according to claim 1 or 2. The through hole of the partition member is provided in a peripheral portion of the opening,
A screw receiving portion of the mold is provided on a surface facing the second surface;
The electrical connection structure according to claim 3. The mold has at least one through hole;
The housing has at least one screw receiving portion,
The mold and the housing are screwed by inserting a screw into the through hole of the mold and the screw receiving portion of the housing.
The electrical connection structure according to any one of claims 1 to 4. The through hole of the mold is provided to protrude from the side surface of the mold,
The screw receiving portion of the housing is provided to protrude from the bottom surface of the housing on the second space side,
The electrical connection structure according to claim 5. The mold has a positioning projection,
The housing has a positioning receiving portion into which the positioning protrusion is inserted.
The electrical connection structure according to claim 1. Of the plurality of bus bars, at least one bus bar is different in length from other bus bars.
The electrical connection structure according to claim 1. The opening is provided in a central portion of the partition member.
The electrical connection structure according to claim 1.

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