Conductor member with cooling structure

Abstract

To provide a conductor member with a cooling structure capable of efficiently cooling a connection portion with a component terminal of an electric / electronic component.SOLUTION: A conductor member 1 with a cooling structure includes a cooling pipe 11 through which a coolant flows, and a conductor member 12 formed in a strip shape from a conductive metal, one end of which is connected to a component terminal of a predetermined electric / electronic component E1 and the other end of which is connected to an electrical connection target of the electric / electronic component E1 to pass electricity, and to which the cooling pipe 11 is fixed so as to contact a connection portion with the component terminal.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a conductor member with a cooling structure that connects component terminals of electric and electronic components to electrical connection targets while cooling itself. [Background technology]

[0002] Conventionally, a conductor member with a cooling structure has been known in which a cooling function is added to a conductor member that connects the component terminals of an electric / electronic component to an electrical connection target (see, for example, Patent Document 1). The conductor member with a cooling structure of Patent Document 1 uses a conductive pipe as the conductor member, and has both ends crushed to form connection parts with the component terminals of the electric / electronic component and the electrical connection target. The electrical connection is made by the conductive pipe itself, and cooling is achieved by a refrigerant flowing inside the pipe. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2018-018661 Summary of the Invention [Problem to be solved by the invention]

[0004] In the above-described conductor member with a cooling structure using a conductive pipe, the connection portion formed by crushing the end portion tends to be separated from the refrigerant flowing through the hollow portion. On the other hand, in this conductor member with a cooling structure, the heat generated at the connection portion with the terminal of the electrical or electronic component is higher than in other portions. However, because the connection portion tends to be separated from the refrigerant as described above, the above-described conductor member with a cooling structure has a problem in that the cooling efficiency for this connection portion is low.

[0005] Therefore, in view of the above-mentioned problems, an object of the present invention is to provide a conductor member with a cooling structure that can efficiently cool the connection portion with the component terminal of an electric or electronic component. [Means for solving the problem]

[0006] In order to solve the above problems, a conductor member with a cooling structure includes a cooling pipe through which a refrigerant flows, and a strip-shaped conductor member made of a conductive metal, one end of which is connected to a component terminal of a predetermined electric / electronic component, and the other end of which is connected to an electrical connection target of the electric / electronic component to conduct electricity, and to which the cooling pipe is fixed so as to contact the connection portion with the component terminal. The refrigerant is a fluid having electrical conductivity, the cooling pipe is a metal pipe having electrical conductivity, and at least one of a conductor side contact surface of the conductor member that contacts the cooling pipe and a pipe side contact surface of the cooling pipe that contacts the conductor member is insulated, the conductor member has two conductor plates that are each strip-shaped and overlapped with each other, and the cooling pipe is sandwiched and fixed between the two conductor plates, and each of the two conductor plates has a front conductor that crosses the connection portion of the conductor member in the width direction. A pipe holding groove for holding the cooling pipe inside for a part of its thickness direction is formed on the opposing surface when the components are stacked, a pair of component terminals is provided on the electric / electronic component, the conductor members are connected one-to-one to the pair of component terminals, and a pair of conductor members is provided so as to extend in the arrangement direction of the component terminals, and the cooling pipe is a single pipe having a part fixed to each of the pair of conductor members, and is bent in a U-shape between the pipe holding groove in one of the conductor members and the pipe holding groove in the other conductor member. It is characterized by: Further, a conductor member with a cooling structure comprises a cooling pipe through which a refrigerant flows, and a conductor member formed in a strip shape from a conductive metal, one end connected to a component terminal of a predetermined electrical / electronic component and the other end connected to an electrical connection target of the electrical / electronic component to conduct electricity, and to which the cooling pipe is fixed so as to contact the connection portion with the component terminal, wherein the refrigerant is a conductive fluid, the cooling pipe is a conductive metal pipe, and at least one of the conductor side contact surface of the conductor member that contacts the cooling pipe and the pipe side contact surface of the cooling pipe that contacts the conductor member is insulated, and the conductor member has a strip plate portion at one end where the connection portion is provided, and a pair of side wall ribs erected on a pair of side edges of the strip plate portion, and each of the pair of side wall ribs is formed with a pipe holding portion that has a through hole shape or a notch shape cut from an edge, through which the cooling pipe passes and is held so as to contact the connection portion of the strip plate portion across the width direction. Further, a conductor member with a cooling structure comprises: a cooling pipe through which a refrigerant flows; and a conductor member formed in a strip shape from a conductive metal, having one end connected to a component terminal of a predetermined electrical / electronic component and the other end connected to an electrical connection target of the electrical / electronic component to conduct electricity, and to which the cooling pipe is fixed so as to contact the connection portion with the component terminal, wherein the refrigerant is a conductive fluid; the cooling pipe is a conductive metal pipe, and at least one of the conductor side contact surface of the conductor member that contacts the cooling pipe and the pipe side contact surface of the cooling pipe that contacts the conductor member is insulated; the cooling pipe is fixed to the conductor member so that at least a portion of it extends in the longitudinal direction of the conductor member while contacting the connection portion; and the conductor member comprises: a strip plate portion having the connection portion at one end; and a bent holding portion that is erected on at least one of a pair of side edges of the strip plate portion and bent toward the center of the width direction of the strip plate portion to hold the longitudinally extending portion of the cooling pipe between the strip plate portion and the bent holding portion. [Effects of the Invention]

[0007] According to the above-described conductor member with a cooling structure, the connection portion with the component terminal of the electric / electronic component can be efficiently cooled. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a perspective view showing a conductor member with a cooling structure according to a first embodiment. FIG. [Figure 2] 2 is a plan view of the connection points between the component terminals of the electric / electronic component and the conductor member in the conductor member with a cooling structure shown in FIG. 1, as viewed from the direction of arrow V11 in FIG. [Figure 3] 3 is a cross-sectional view taken along line V12-V12 in FIG. 1, showing a connection point between a component terminal and a conductor member of the electric / electronic component shown in FIG. 2. In FIG. [Figure 4] FIG. 4 is a perspective view showing two conductive plates that constitute the conductive member shown in FIGS. 1 to 3, arranged side by side. [Figure 5] FIG. 10 is a perspective view showing a conductor member with a cooling structure according to a second embodiment. [Figure 6] 6A and 6B are perspective views of the conductor member shown in FIG. 5, as viewed from the front and back sides. [Figure 7] 10A and 10B are perspective views of a conductor member according to a third embodiment, as viewed from the front and back sides. [Figure 8]FIG. 10 is a perspective view showing a conductor member with a cooling structure according to a fourth embodiment. [Figure 9] 9 is a plan view of the conductor member with a cooling structure shown in FIG. 8, as viewed from the direction of arrow V13 in FIG. 8. FIG. [Figure 10] FIG. 9 is a perspective view showing the conductor member shown in FIG. 8. [Figure 11] 11 is a schematic diagram showing how the cooling pipe is held by the conductor member shown in FIG. 10. FIG. [Figure 12] 10 is a plan view equivalent to FIG. 9 showing a conductor member with a cooling structure according to a fifth embodiment. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, an embodiment of a conductor member with a cooling structure will be described. First, a first embodiment will be described.

[0010] Fig. 1 is a perspective view showing a conductor member with a cooling structure according to a first embodiment, Fig. 2 is a plan view of a connection point between a component terminal of an electric / electronic component and the conductor member in the conductor member with a cooling structure shown in Fig. 1, as seen from the direction of arrow V11 in Fig. 1. Fig. 3 is a cross-sectional view of the connection point between the component terminal of the electric / electronic component and the conductor member shown in Fig. 2, taken along line V12-V12 in Fig. 1. Fig. 4 is a perspective view showing two conductor plates constituting the conductor member shown in Figs. 1 to 3, arranged side by side.

[0011] The conductor member 1 with a cooling structure in this embodiment is a member for connecting each of a pair of component terminals E11 in a relay, which is an electric / electronic component E1, to an electrical connection target of the electric / electronic component E1. The conductor member 1 with a cooling structure includes one cooling pipe 11 and a pair of conductor members 12 that are connected one-to-one to the pair of component terminals E11 and to which the cooling pipe 11 is fixed.

[0012] The cooling pipe 11 is a round pipe bent into a U-shape midway, and a refrigerant flows through it. In this embodiment, water, which is a fluid having electrical conductivity, is used as the refrigerant. Furthermore, a metal pipe having electrical conductivity is used as the cooling pipe 11. An example of such a metal pipe is a copper pipe.

[0013] The pair of conductor members 12 are formed in a strip shape from a conductive metal, one end connected to a component terminal E11 of the electric / electronic component E1, and the other end connected to an electrical connection target for electrical connection. The cooling pipe 11 is fixed to each conductor member 12 by the following structure so as to contact the connection portion 12a with the component terminal E11. That is, in this embodiment, the conductor member 12 has two strip-shaped conductor plates 121 that are overlapped with each other, and the cooling pipe 11 is sandwiched and fixed between the two conductor plates 121. A pipe holding groove 121a is formed on each of the two conductor plates 121 on the opposing surfaces 121b when overlapped, and the groove 121a intersects the connection portion 12a of the conductor member 12 in the width direction D11 to hold a portion of the cooling pipe 11, specifically half of the cooling pipe 11, inside the groove.

[0014] In this embodiment, the connection portion 12a of the conductor member 12 is fastened to the component terminal E11 by a screw E12. Each of the two conductor plates 121 has a screw through hole 121d for screw fastening formed in an end portion 121c corresponding to the connection portion 12a, and a pipe holding groove 121a formed adjacent to the screw through hole 121d and crossing the end portion 121c. The pipe holding groove 121a has a semicircular cross section, since the cooling pipe 11 is a round pipe. Both the conductor side contact surface 121a-1, which is the inner surface of the pipe holding groove 121a that contacts the cooling pipe 11, and the pipe side contact surface 111 of the cooling pipe 11 that contacts the conductor side contact surface 121a-1, are insulated using an insulating coating or the like. Then, the cooling pipe 11 is fixed to the pipe holding groove 121a by adhesion or the like, and the two conductive plates 121 are joined to each other by a conductive adhesive, welding, or the like. The two conductive plates 121 may be joined by adhesive bonding using an insulating adhesive, or the like. In this case, of the two conductive plates 121, one conductive plate 121 that is in direct contact with the component terminal E11 contributes to electrical conduction with the electrical connection target.

[0015] In this embodiment, the other end of the conductor member 12 is also connected to an electrical connection target by screw fastening, and each conductor plate 121 has a screw through hole 121e formed on this other end for screw fastening.

[0016] In this embodiment, the pair of conductor members 12 are arranged to extend in the arrangement direction D13 of the pair of component terminals E11. The cooling pipe 11 is bent into a U-shape between the pipe holding groove 121a in one conductor member 12 and the pipe holding groove 121a in the other conductor member 12.

[0017] According to the conductor member 1 with a cooling structure of the first embodiment described above, the cooling pipe 11 is fixed to the conductor member 12 so as to contact the connection portion 12a with the component terminal E11 of the electric / electronic component E1. By fixing the cooling pipe 11 in such a position, heat generated at the connection portion 12a with the component terminal E11 is easily transferred to the refrigerant of the cooling pipe 11, and the connection portion 12a can be efficiently cooled.

[0018] In this embodiment, the refrigerant is water, which is a conductive fluid, and the cooling pipe 11 is a conductive metal pipe. Insulation is applied to both the conductor-side contact surface 121a-1 of the conductor member 12 and the pipe-side contact surface 111 of the cooling pipe 11. This configuration prevents the connection portion 12a with the component terminal E11 of the electric / electronic component E1 from being short-circuited to an unintended location via the refrigerant or the cooling pipe 11, and allows the use of ordinary water, copper pipe, or the like as the conductive refrigerant and cooling pipe 11.

[0019] Furthermore, in this embodiment, the conductor member 12 sandwiches and fixes the cooling pipe 11 between two conductor plates 121, and each conductor plate 121 has a pipe holding groove 121a formed therein to fit a portion of the cooling pipe 11 inside. With this configuration, by sandwiching the cooling pipe 11 between the two conductor plates 121 so that it fits into the pipe holding groove 121a, the contact area between the cooling pipe 11 and the conductor member 12 can be increased, further improving cooling efficiency. Furthermore, by sandwiching the cooling pipe 11 between the two conductor plates 121, the fixing strength of the cooling pipe 11 to the conductor member 12 can also be increased.

[0020] In this embodiment, the pipe holding groove 121a is formed so as to cross adjacent to the screw through hole 121d for screw fastening in each conductor plate 121. This configuration allows the cooling pipe 11 to be effectively brought into contact with the connection portion 12a that is connected to the component terminal E11 of the electric / electronic component E1 by screw fastening.

[0021] In this embodiment, the cooling pipe 11 is a single pipe having a portion fixed to each of the pair of conductor members 12, and is bent into a U-shape between the pipe holding groove 121a of one conductor member 12 and the pipe holding groove 121a of the other conductor member 12. With this configuration, the pair of connection portions 12a connected to the pair of component terminals E11 of the electric / electronic component E1 can be efficiently cooled by the single cooling pipe 11.

[0022] Next, a second embodiment will be described. The second embodiment differs from the first embodiment in the configuration of the conductor member. The following description of the second embodiment will focus on the differences from the first embodiment.

[0023] Fig. 5 is a perspective view showing a conductor member with a cooling structure according to a second embodiment, and Fig. 6 is a perspective view showing the conductor member shown in Fig. 5 as viewed from the front and back. In Fig. 5, components equivalent to those of the first embodiment shown in the perspective view of Fig. 1 are assigned the same reference numerals as in Fig. 1 only for those elements necessary for explanation, and redundant explanations of those components will be omitted below.

[0024] The conductor member 2 with a cooling structure of this second embodiment is similar to the first embodiment in that it includes one cooling pipe 11 and a pair of conductor members 22 that are connected one-to-one to a pair of component terminals E11 of an electric / electronic component E1 to fix the cooling pipe 11. However, this embodiment differs from the first embodiment in that the conductor member 22 is a single sheet metal member having a strip portion 221 and a pair of sidewall ribs 222.

[0025] The band plate portion 221 is a band-shaped portion having a connection portion 22a with the component terminal E11 at one end. The connection portion 22a has a screw through hole 221c for screw fastening, and the other end has a screw through hole 221e for screw fastening to an electrical connection target. The pair of sidewall ribs 222 are portions erected on a pair of side edges of the band plate portion 221. In this embodiment, each sidewall rib 222 is formed by sheet metal processing in which the side edge of a metal band plate wider than the band plate portion 221 is bent at a right angle. Each of the pair of sidewall ribs 222 is formed with a pipe holding portion 222a through which the cooling pipe 11 passes and is held so as to contact the connection portion 22a of the band plate portion 221 across the width direction D11. The pipe holding portion 222a is a portion having an arc-shaped notch cut into the edge of each of the pair of sidewall ribs 222. The pipe holding portions 222a of the pair of sidewall ribs 222 are formed at positions coaxial with each other in the width direction D11, and a part of the cooling pipe 11 is fixed so as to pass through the pair of pipe holding portions 222a.

[0026] Here, the connecting portion 22a of the band plate portion 221 has a terminal contact surface 221a that contacts the component terminal E11 on the front or back surface opposite the protruding side of the sidewall rib 222, and a pipe contact surface 221b that contacts the cooling pipe 11 on the protruding side of the sidewall rib 222. A pipe passing groove 221d is formed in the width direction D11 on this pipe contact surface 221b, through which the cooling pipe 11 passes with a portion of the cooling pipe 11 housed inside in the thickness direction D12. Each of the pair of sidewall ribs 222 has a pipe holding portion 222a formed in the rib height direction D14 at a position where a portion of the cooling pipe 11 fits into the pipe passing groove 221d. The pipe passing groove 221d is a circular groove with an arc-shaped cross section that forms a portion of the arc-shaped shape of the pipe holding portion 222a and that receives a portion of the round cooling pipe 11. The pipe passing groove 221d and the pair of pipe holding portions 222a are formed by punching the pair of side wall ribs 222 while cutting the pipe contact surface 221b with a predetermined tool.

[0027] In the conductor member 22 of this embodiment, the inner edge of the notched pipe holding portion 222a in the side wall rib 222 and the inner surface of the pipe passing groove 221d in the band plate portion 221 form a conductor-side contact surface 22b that comes into contact with the cooling pipe 11. An insulating treatment is performed by applying insulating paint to each of this conductor-side contact surface 22b and the pipe-side contact surface 111 of the cooling pipe 11. Then, the conductor member 22 and the cooling pipe 11 are fixed together by adhesion or the like.

[0028] It goes without saying that the cooling structure-equipped conductor member 2 of the second embodiment described above can also efficiently cool the connection portion 22a with the component terminal E11 of the electric / electronic component E1, similar to the first embodiment described above.

[0029] Furthermore, in this embodiment, the conductor member 22 is a portion having a band plate portion 221 and a pair of sidewall ribs 222, and a pipe holding portion 222a having a notched shape is formed in each of the pair of sidewall ribs 222. With this configuration, the conductor member 22 can have a thin-walled structure including the band plate portion 221 and the pair of sidewall ribs 222. With this thin-walled structure, it is possible to reduce the material cost of the conductor member 22 and make the conductor member 22 lighter than if the conductor member 22 were formed in a thick plate shape.

[0030] In this embodiment, a pipe passing groove 221d is formed in the pipe contact surface 221b of the connection portion 22a of the band plate portion 221. The pipe holding portion 222a of each sidewall rib 222 is formed at a position in the rib height direction D14 where a portion of the cooling pipe 11 fits into the pipe passing groove 221d. According to this configuration, the cooling pipe 11 held by the pipe holding portion 222a is brought into contact with the pipe contact surface 221b of the band plate portion 221 so as to be fitted into the pipe passing groove 221d, thereby increasing the contact area between the cooling pipe 11 and the conductor member 22 and further improving cooling efficiency.

[0031] In this embodiment, the cooling pipe 11 is bent in a U-shape between the pipe holding portion 222a on one of the pair of conductor members 22 connected to the pair of component terminals E11 one-to-one. With this configuration, the pair of connecting portions 22a connected to the pair of component terminals E11 of the electric / electronic component E1 can be efficiently cooled by the single cooling pipe 11.

[0032] Next, a third embodiment will be described. The third embodiment is a modified example of the second embodiment described above, and differs from the second embodiment in the pipe holding portion of the conductor member. The following description of the third embodiment will focus on the differences from the second embodiment.

[0033] Fig. 7 is a perspective view of the conductor member according to the third embodiment, seen from both the front and back sides. Note that in Fig. 7, components equivalent to those of the second embodiment shown in the perspective view of Fig. 6 are assigned the same reference numerals as in Fig. 6 only for those components necessary for explanation, and redundant explanations of those components will be omitted below.

[0034] The conductor member 32 in the third embodiment differs from the second embodiment in the shapes of the pipe holding portions 322a provided in the pair of sidewall ribs 222 and the pipe passing grooves 321d provided in the pipe contact surfaces 221b of the connection portions 22a of the band plate portions 221. In this embodiment, the pipe holding portions 322a are not notched but have a through-hole shape that coaxially penetrates the pair of sidewall ribs 222. The through-hole serving as the pipe holding portion 322a has a shape in which a semicircular hole portion on the edge side of the sidewall rib 222 and a rectangular hole portion on the band plate portion 221 side are connected in the rib height direction D14. The pipe passing grooves 321d provided in the pipe contact surfaces 221b of the connection portions 22a are connected to the rectangular hole portions in the pipe holding portions 322a at both ends in the width direction D11, and are rectangular grooves with a rectangular groove cross section. In this embodiment, the pipe passing groove 321d and the pair of pipe holding portions 322a are also formed by punching the pair of side wall ribs 222 while cutting the pipe contact surface 221b with a predetermined tool, similar to the second embodiment.

[0035] Also in this embodiment, the inner edge of the pipe holding portion 322a and the inner surface of the pipe passing groove 321d in the band plate portion 221 form a conductor-side contact surface 32b that comes into contact with the cooling pipe 11. This conductor-side contact surface 32b and the pipe-side contact surface 111 of the cooling pipe 11 are each subjected to an insulating treatment in which an insulating paint is applied. Then, the conductor member 32 and the cooling pipe 11 are fixed together by adhesion or the like.

[0036] It goes without saying that the third embodiment described above can efficiently cool the connection portion 22a between the electrical / electronic component E1 and the component terminal E11, just like the second embodiment described above, that is, just like the first embodiment.

[0037] Next, a fourth embodiment will be described. The fourth embodiment differs from the first embodiment in the mounting structure of the cooling pipe to the conductor member. The following description of the fourth embodiment will focus on the differences from the first embodiment.

[0038] Fig. 8 is a perspective view showing a conductor member with a cooling structure according to a fourth embodiment, Fig. 9 is a plan view of the conductor member with a cooling structure shown in Fig. 8, seen from the direction of arrow V13 in Fig. 8, and Fig. 10 is a perspective view showing the conductor member shown in Fig. 8. Fig. 11 is a schematic diagram showing how cooling piping is held by the conductor member shown in Fig. 10. Note that in Figs. 8 to 10, components equivalent to those of the first embodiment shown in Figs. 1 to 4 are designated by the same reference numerals as in Figs. 1 to 4 only for components necessary for explanation, and redundant explanations of these components will be omitted below.

[0039] The conductor member 4 with a cooling structure of the fourth embodiment is similar to the first embodiment in that it is a member for connecting each of a pair of component terminals E11 in a relay, which is an electric / electronic component E1, to an electrical connection target of the electric / electronic component E1. However, in this embodiment, one cooling pipe 41 is attached to each of a pair of conductor members 42 connected one-to-one to a pair of component terminals E11.

[0040] Each cooling pipe 41 is fixed to each conductor member 42 so that at least a portion of each cooling pipe 41 extends in the length direction D41 of the conductor member 42 while contacting the connection portion 42a of the conductor member 42.

[0041] Each conductor member 42 has a connecting portion 42a at one end with the component terminal E11, and includes a band plate portion 421 having screw through holes 421a and 421e for screw fastening formed on the connecting portion 42a and the other end, and a bent holding portion 422 for fixing the cooling pipe 41. The bent holding portions 422 are erected on both of a pair of side edges of the band plate portion 421 and are bent toward the center of the band plate portion 421 in the width direction D11, and are portions that sandwich and hold the extending portion 411 of the cooling pipe 41 in the length direction D41 between themselves and the band plate portion 421.

[0042] Each cooling pipe 41 includes a pair of extending portions 411 held by a pair of bending holding portions 422, and a U-shaped bent portion 412. The U-shaped bent portion 412 connects the connecting portion 42a side of each of the pair of extending portions 411 so as to surround the periphery of the screw through hole 421a in a U-shape and is in contact with the connecting portion 42a.

[0043] In this embodiment, the cooling pipe 41 has a pair of extending portions 41 that contact the inner surfaces of the band plate portion 421 and the pair of bending holding portions 422, and a U-shaped bent portion 412 that contacts the connecting portion 42a. For this reason, the pair of extending portions 41 and the U-shaped bent portion 412 are all insulated with an insulating coating. Also, on the conductor member 42 side, the protruding surfaces of the bending holding portions 422 on the front and back surfaces of the band plate portion 421 and the inner surfaces of the pair of bending holding portions 422 are insulated with an insulating coating. Due to these insulation treatments, in this embodiment as well, a conductive metal pipe such as a copper pipe is used as the cooling pipe 41, and water, which is a conductive fluid, is used as the refrigerant.

[0044] 11, the cooling pipe 41 is strongly pressed against the band plate portion 421 by a spring force F41 resulting from the bending structure of the bending holding portion 422. By utilizing the spring force F41 at the bending holding portion 422, the cooling pipe 41 is fixed to the conductor member 42 without relying on adhesive or the like.

[0045] It goes without saying that the fourth embodiment described above can also efficiently cool the connection portion 42a between the electric / electronic component E1 and the component terminal E11, similarly to the first embodiment.

[0046] In this embodiment, the conductor member 42 includes a band plate portion 421 and bending holding portions 422 provided on both sides of the band plate portion 421 to hold the extending portion 411 of the cooling pipe 41 in the longitudinal direction D41 between the band plate portion 421 and the conductor member 42. This configuration increases the contact area between the conductor member 42 and the cooling pipe 41, thereby enabling efficient cooling. Furthermore, as shown in Fig. 11, the spring force F41 resulting from the bending structure of the bending holding portions 422 strongly presses the cooling pipe 41 against the band plate portion 421, which also improves the cooling efficiency of the cooling pipe 41.

[0047] In this embodiment, the cooling pipe 41 includes a pair of extending portions 411 and a U-shaped bent portion 412 that connects the extending portions 411 to surround the periphery of the screw through hole 421c in a U-shape and contacts the connecting portion 42a. With this configuration, the U-shaped bent portion 412 of the cooling pipe 41 surrounds the periphery of the screw through hole 421c for screw fastening in a U-shape and contacts the connecting portion 42a, thereby increasing the contact area between the cooling pipe 41 and the connecting portion 42a and further improving the cooling efficiency.

[0048] Next, a fifth embodiment will be described. The fifth embodiment is a modification of the fourth embodiment described above, and differs from the fourth embodiment in the shape of the cooling pipe attached to the conductor member. The following description of the fifth embodiment will focus on the differences from the fourth embodiment.

[0049] Fig. 12 is a plan view of a conductor member with a cooling structure according to a fifth embodiment, equivalent to Fig. 9. In Fig. 12, components equivalent to those of the fifth embodiment shown in Figs. 8 to 9 are denoted by the same reference numerals as in Figs. 8 to 9 only for components necessary for explanation, and redundant explanations of those components will be omitted below.

[0050] In the conductor member 5 with a cooling structure of the fifth embodiment, two cooling pipes 51 are attached to each of a pair of conductor members 42 similar to those of the fourth embodiment, which are connected one-to-one to a pair of component terminals E11 of an electric / electronic component E1, so as to be aligned parallel to the width direction D11. Each attached cooling pipe 51 extends linearly from one of the pair of conductor members 42 to the other and is attached as follows: That is, each cooling pipe 51 leaves a bending and holding portion 422 of one conductor member 42, contacts a pair of connecting portions 42a, and travels straight in the arrangement direction D51 of the pair of component terminals E11 to reach the bending and holding portion 422 of the other conductor member 42. Each cooling pipe 51 is arranged in this manner and held by the pair of bending and holding portions 422.

[0051] It goes without saying that the fifth embodiment described above can also efficiently cool the connection portion 42a with the component terminal E11 of the electric / electronic component E1, similarly to the first embodiment described above.

[0052] In this embodiment, the cooling pipe 51 extends in a straight line from the bent and held portion 422 of one conductor member 42 to the bent and held portion 422 of the other conductor member 42, contacting the pair of connecting portions 42a along the way. This configuration allows the pair of connecting portions 42a connected to the pair of component terminals E11 of the electric / electronic component E1 to be collectively and efficiently cooled.

[0053] In this embodiment, two straight cooling pipes 51 are arranged in parallel in the width direction D11 and contact the pair of connecting portions 42a. With this configuration, the two cooling pipes 51 work together to cool the pair of connecting portions 42a, thereby improving cooling efficiency.

[0054] The first to fifth embodiments described above are merely representative examples of the conductor member with a cooling structure, and the conductor member with a cooling structure is not limited to these and can be implemented in various modifications.

[0055] For example, in the above-described embodiment, as an example of a conductor member with a cooling structure, conductor members 1,...,5 are given as examples for connecting each of a pair of component terminals E11 in a relay, which is an electric / electronic component E1, to an electrical connection target. However, the conductor member with a cooling structure is not limited to this, and the electric / electronic component to be connected may be an electric component other than a relay, or may be another electronic component.

[0056] Furthermore, in the above-described embodiments, as an example of the conductor member with a cooling structure, the conductor members 1,...,5 of a liquid-cooling type in which water, which is a conductive liquid, is flowed as a refrigerant through the cooling pipes 11, 41, 51 are exemplified. However, the conductor member with a cooling structure is not limited to this, and the refrigerant may be a non-conductive liquid or a gas for air cooling.

[0057] Furthermore, in the above-described embodiment, as an example of a conductor member with a cooling structure, conductor members 1,...,5 having a pair of conductor members 12,...,42 are given as examples. However, the conductor member with a cooling structure is not limited to this, and may be one having only one conductor member, or one having three or more conductor members, etc.

[0058] In the above-described embodiments, round cooling pipes 11, 41, and 51 made of conductive metal pipes such as copper pipes are shown as examples of cooling pipes. However, the cooling pipes are not limited to these and may be made of non-conductive metals, resins, or the like, and may have shapes other than round, such as square or other polygonal shapes. When the cooling pipes are made of non-conductive metals, resins, or the like, insulation between the cooling pipes and the conductive members is not required.

[0059] Furthermore, in the above-described embodiment, as an example of a conductor member with a cooling structure, conductor members 1..., 5 that have been insulated as follows are exemplified. That is, the insulation treatment here is performed on both the conductor-side contact surfaces 22b, 121a-1 of the conductor members 12,..., 42 and the piping-side contact surfaces 111 of the cooling piping 11, 41, 51. However, the conductor member with a cooling structure is not limited to this, and the insulation treatment may be performed on only one of the conductor-side contact surfaces of the conductor member and the piping-side contact surface of the cooling piping.

[0060] Furthermore, in the fourth and fifth embodiments described above, as an example of a conductor member with a cooling structure, conductor members 4 and 5 are shown in which the cooling pipes 41 and 51 are held by bending holding portions 422 on both sides of a pair of sides of a strip portion 421 of a conductor member 42. However, the conductor member with a cooling structure is not limited to this. Even when bending holding portions are provided on the conductor member, the bending holding portion may be provided on only one of the pair of sides of the strip portion. [Explanation of symbols]

[0061] 1, 2, 4, 5 Conductor member with cooling structure 11,41,51 Cooling pipes 12, 22, 32, 42 Conductor members 12a, 22a, 42a connection parts 22b, 121a-1 Conductor side contact surface 111 Pipe side contact surface 121 Conductor plate 121a Piping holding groove 121b Opposite side 121c End section 121d, 121e, 221c, 221e, 421a, 421e Screw through holes 221,421 Band part 221a Terminal contact surface 221b Piping contact surface 221d,321d Piping passage groove 222 Sidewall rib 222a, 322a Piping holding part 411 Extension part 412 U-shaped bend 422 Bending retention part D11 Width direction D12 Thickness direction D13, D51 arrangement direction D14 Rib height direction D41 Lengthwise E1 Electrical and electronic components E11 Component terminal E12 screw F41 spring force

Claims

1. a cooling pipe through which a refrigerant flows; a conductor member formed in a strip shape from a conductive metal, one end of which is connected to a component terminal of a predetermined electric / electronic component and the other end of which is connected to an electrical connection target of the electric / electronic component to conduct electricity, and to which the cooling pipe is fixed so as to contact the connection portion with the component terminal; Equipped with the refrigerant is a fluid having electrical conductivity, The cooling pipe is a metal pipe having electrical conductivity, an insulating treatment is applied to at least one of a conductor-side contact surface of the conductor member that contacts the cooling pipe and a pipe-side contact surface of the cooling pipe that contacts the conductor member; the conductor member has two strip-shaped conductor plates that are superimposed on each other, and the cooling pipe is sandwiched and fixed between the two conductor plates; a pipe holding groove for holding the cooling pipe inside a part of the thickness direction of the pipe so as to cross the connection portion of the conductive member in the width direction of the two conductive plates is formed on the opposing surface when the two conductive plates are overlapped; The electrical / electronic component is provided with a pair of component terminals, the conductor members are connected to the pair of component terminals one-to-one and are provided in pairs so as to extend in the arrangement direction of the component terminals, A conductor member with a cooling structure, characterized in that the cooling piping is a single pipe with a portion fixed to each of a pair of conductor members, and is bent into a U-shape between the piping holding groove in one of the conductor members and the piping holding groove in the other conductor member.

2. the connecting portion of the conductor member is fastened to the component terminal with a screw, The conductor member with cooling structure described in claim 1, characterized in that each of the two conductor plates has a screw through hole for screw fastening formed in the end portion corresponding to the connection portion, and the piping holding groove is formed next to the screw through hole so as to cross the end portion.

3. a cooling pipe through which a refrigerant flows; a conductor member formed in a strip shape from a conductive metal, one end of which is connected to a component terminal of a predetermined electric / electronic component and the other end of which is connected to an electrical connection target of the electric / electronic component to conduct electricity, and to which the cooling pipe is fixed so as to contact the connection portion with the component terminal; Equipped with the refrigerant is a fluid having electrical conductivity, The cooling pipe is a metal pipe having electrical conductivity, an insulating treatment is applied to at least one of a conductor-side contact surface of the conductor member that contacts the cooling pipe and a pipe-side contact surface of the cooling pipe that contacts the conductor member; the conductor member has a strip portion having the connection portion at one end thereof, and a pair of side wall ribs provided on a pair of side edges of the strip portion, A conductor component with a cooling structure, characterized in that each of the pair of side wall ribs is formed with a piping holding portion having a through hole shape or a notch shape cut from the edge, which passes through and holds the cooling piping so that it contacts the connection portion of the band plate portion across the width direction.

4. the connecting portion of the band plate portion has a terminal contact surface on the front and back surfaces opposite to the protruding sides of the pair of side wall ribs that contacts the component terminal, and a pipe contact surface on the protruding sides of the pair of side wall ribs that contacts the cooling pipe, a pipe passing groove is formed in the pipe contact surface in the width direction, through which the cooling pipe passes with a part of the cooling pipe housed inside in the thickness direction; A conductor member with a cooling structure as described in claim 3, characterized in that the piping holding portion is formed on each of the pair of side wall ribs at a position in the rib height direction where the portion of the cooling piping fits into the piping passage groove.

5. The electrical / electronic component is provided with a pair of component terminals, the conductor members are connected to the pair of component terminals one-to-one and are provided in pairs so as to extend in the arrangement direction of the component terminals, A conductor member with a cooling structure as described in claim 3, characterized in that the cooling piping is a single pipe with a portion fixed to each of a pair of conductor members, and is bent into a U-shape between the piping holding portion of one of the conductor members and the piping holding portion of the other conductor member.

6. a cooling pipe through which a refrigerant flows; a conductor member formed in a strip shape from a conductive metal, one end of which is connected to a component terminal of a predetermined electric / electronic component and the other end of which is connected to an electrical connection target of the electric / electronic component to conduct electricity, and to which the cooling pipe is fixed so as to contact the connection portion with the component terminal; Equipped with the refrigerant is a fluid having electrical conductivity, The cooling pipe is a metal pipe having electrical conductivity, an insulating treatment is applied to at least one of a conductor-side contact surface of the conductor member that contacts the cooling pipe and a pipe-side contact surface of the cooling pipe that contacts the conductor member; the cooling pipe is fixed to the conductor member such that at least a portion of the cooling pipe extends in a longitudinal direction of the conductor member while contacting the connection portion, The conductor member is a strip portion having the connection portion provided at one end thereof; a bending and holding portion that is provided on at least one of a pair of side edges of the band plate portion and is bent toward a center in a width direction of the band plate portion to sandwich and hold the extending portion of the cooling pipe in the length direction between the band plate portion and the bending and holding portion; A conductor member with a cooling structure, comprising:

7. the conductor member has a screw through-hole formed in the connection portion through which a screw for screwing passes, and the connection portion is fastened to the component terminal by screwing, and the bending holding portion is provided on each of the pair of side edges, The cooling pipe is a pair of the extension portions held by a pair of the bending holding portions; a U-shaped bent portion that connects the connection portion sides of the pair of extension portions so as to surround the periphery of the screw through hole in a U-shape and contacts the connection portion; The conductive member with a cooling structure according to claim 6, further comprising:

8. the conductor member has a screw through-hole formed in the connection portion through which a screw for screwing passes, and the connection portion is fastened to the component terminal by screwing, and the bending holding portion is provided on each of the pair of side edges, A conductor member with a cooling structure as described in claim 6, characterized in that the cooling pipes are fixed in pairs to the conductor member so that the extended portions are held in a pair by a pair of the bending holding portions and pass straight next to the screw through hole to contact the connection portion.

9. The electrical / electronic component is provided with a pair of component terminals, the conductor members are connected to the pair of component terminals one-to-one and are provided in pairs so as to extend in the arrangement direction of the component terminals, A conductor member with a cooling structure as described in claim 6, characterized in that the cooling piping is held by a pair of bending holding portions so that it exits the bending holding portion in one of the conductor members, contacts a pair of the connection portions, travels straight in the arrangement direction, and reaches the bending holding portion in the other conductor member.

Images