Current sensors and electronic devices

Abstract

SOLUTION: A current sensor comprises a bus bar and a magnetic sensor having at least two magnetoelectric transducers. The bus bar may include a first conductive member and a second conductive member arranged facing each other with the magnetic sensor therebetween and extending in a first direction, and a connecting member for connecting the first conductive member and the second conductive member and located between the first conductive member and the second conductive member. As seen from the magneto-sensitive surface side of the at least two magnetoelectric transducers, the magnetic sensor may not overlap the first conductive member, the second conductive member, and the connecting member. When a direction extending along the magneto-sensitive surface and crossing the first direction is defined as a second direction, then the magneto-sensitive surface may not overlap the first conductive member and the second conductive member as seen from the second direction.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a current sensor and an electronic device.

Background Art

[0002] Patent Documents 1 and 2 describe arranging a magnetic sensor on a bus bar having two flow paths of the same height in the thickness direction. Patent Documents 3 and 4 describe arranging a magnetic sensor between two flow paths of a bus bar having two flow paths of different heights in the thickness direction so as to overlap the two flow paths in plan view. Patent Document 5 describes arranging a magnetic sensor between two flow paths of a bus bar having two flow paths of different heights in the thickness direction so as to overlap the two flow paths in plan view, or arranging two independent bus bars at different heights in the thickness direction. [Prior Art Documents] [Patent Documents] [Patent Document 1] International Publication No. 2023 / 038725 [Patent Document 2] US Patent Application Publication No. 2023 / 0204632 [Patent Document 3] Japanese Patent Application Laid-Open No. 2021-36199 [Patent Document 4] US Patent Application Publication No. 2020 / 0300894 [Patent Document 5] International Publication No. 2017 / 010219

Summary of the Invention

Problems to be Solved by the Invention

[0003] While suppressing detection errors due to misalignment of the magnetic sensor in the thickness direction, it is desired to improve the ease of mounting the magnetic sensor on an electronic module or the like.

Means for Solving the Problems

[0004] A current sensor according to one aspect of the present invention may comprise a busbar through which a measurement current flows, and a magnetic sensor having at least two magnetoelectric conversion elements that detect a magnetic field generated by the measurement current flowing through the busbar. The busbar may have a first conductive member and a second conductive member that are arranged opposite each other with the magnetic sensor in between and extending in a first direction. The busbar may have a connecting member that is arranged between the first conductive member and the second conductive member and connects the first conductive member and the second conductive member. When viewed from the magnetosensitive surface side of the at least two magnetoelectric conversion elements, the magnetic sensor does not have to overlap with the first conductive member, the second conductive member, and the connecting member. A second direction is defined as a direction along the magnetosensitive surface and intersecting the first direction, and when viewed from the second direction, the magnetosensitive surface does not overlap with the first conductive member and the second conductive member, and may be arranged between at least a part of the first conductive member and at least a part of the second conductive member.

[0005] In the current sensor, the first conductive member may have a first channel section and a second channel section extending in a first direction at a distance from each other through which the measurement current flows, and a first connecting section and a second connecting section arranged at a distance from each other to connect the first channel section and the second channel section, respectively. The second conductive member may have a third channel section and a fourth channel section extending in the first direction at a distance from each other through which the measurement current flows, and a third connecting section and a fourth connecting section arranged at a distance from each other to connect the third channel section and the fourth channel section. Viewed from the second direction, the magnetic sensing surface may be positioned between the first channel section and the second channel section, between the first connecting section and the second connecting section, between the third channel section and the fourth channel section, and between the third connecting section and the fourth connecting section.

[0006] In any of the current sensors, the magnetic sensor does not need to overlap with the first conductive member and the second conductive member when viewed from the second direction.

[0007] In any of the current sensors, the magnetic surface may be positioned between the first conductive member and the second conductive member when viewed from the second direction.

[0008] In any of the current sensors, the at least two magnetoelectric conversion elements may be longitudinal magnetic field detection elements.

[0009] An electronic device according to one aspect of the present invention may include the current sensor. The electronic device may include an electronic module having an output terminal. The electronic device may include a substrate disposed at a predetermined position on the first surface of the electronic module. The busbar may be fixed to the output terminal. The magnetic sensor may be disposed on the substrate.

[0010] In the aforementioned electronic device, the substrate may have protrusions that extend from its edges. The magnetic sensor may be positioned on the protrusions.

[0011] In any of the aforementioned electronic devices, the protruding portion does not need to overlap with the first conductive member and the second conductive member when viewed from the magnetosensitive surface side of the at least two magnetoelectric conversion elements.

[0012] In any of the aforementioned electronic devices, the protrusion may be arranged between the first conductive member and the second conductive member.

[0013] In any of the electronic devices, the first conductive member may have a first channel section and a second channel section extending in a first direction at a distance from each other through which the measurement current flows, and a first connecting section and a second connecting section arranged at a distance from each other and connecting the first channel section and the second channel section. The second conductive member may have a third channel section and a fourth channel section extending in the first direction at a distance from each other through which the measurement current flows, and a third connecting section and a fourth connecting section arranged at a distance from each other and connecting the third channel section and the fourth channel section. The connecting member may connect the first connecting section and the third connecting section. The busbar may have a first terminal connecting member connected to the first conductive member and protruding from the second connecting section toward the fourth connecting section. The busbar may have a second terminal connecting member connected to the second conductive member and protruding from the fourth connecting section toward the second connecting section. The first terminal connecting member and the second terminal connecting member may be fixed to the output terminal. Viewed along the magnetic surface and from a second direction intersecting the first direction, the magnetic surface may be positioned between the first flow channel and the second flow channel, between the first connecting portion and the second connecting portion, between the third flow channel and the fourth flow channel, and between the third connecting portion and the fourth connecting portion.

[0014] In any of the electronic devices, the electronic module may have a plurality of output terminals. The substrate may have a plurality of protrusions that protrude from the edge and are spaced apart from each other. The current sensor may comprise a plurality of busbars and a plurality of magnetic sensors. The plurality of magnetic sensors may be arranged on each of the plurality of protrusions.

[0015] In any of the aforementioned electronic devices, the electronic module may be a power module.

[0016] An electrical device according to one aspect of the present invention may comprise a current sensor, an electronic module having an output terminal, and a substrate disposed at a predetermined position on the first surface of the electronic module. The current sensor may comprise a busbar through which a measurement current flows, and a magnetic sensor having at least two magnetoelectric conversion elements that detect a magnetic field generated by the measurement current flowing through the busbar. The busbar may comprise a first conductive member and a second conductive member arranged opposite to each other with the magnetic sensor in between, extending in a first direction, and a connecting member disposed between the first conductive member and the second conductive member, connecting the first conductive member and the second conductive member. When viewed from the magnetosensitive surface side of the at least two magnetoelectric conversion elements, the magnetic sensor does not have to overlap with the first conductive member, the second conductive member, and the connecting member. When viewed from a second direction along the magnetosensitive surface and intersecting the first direction, the magnetosensitive surface does not overlap with the first conductive member and the second conductive member, and may be disposed between at least a part of the first conductive member and at least a part of the second conductive member. The busbar may be fixed to the output terminal. The magnetic sensor may be placed on the substrate. The substrate may have protrusions that extend from its edges. The magnetic sensor may be placed on the protrusions.

[0017] It should be noted that the above summary of the invention does not enumerate all of its features. Furthermore, subcombinations of these features may also constitute an invention. [Brief explanation of the drawing]

[0018] [Figure 1] This figure shows an example of a perspective view of an electronic device according to this embodiment. [Figure 2] This is a plan view of an electronic device as seen from the circuit board side. [Figure 3] This is a side view of the electronic device, seen from the side of the busbar. [Figure 4] This is a perspective view of a bus bar. [Figure 5] This is a side view of the busbar. [Figure 6] This is a plan view of the busbar. [Figure 7] A plan view of the electronic device according to the comparative example as seen from the power module side. [Figure 8] A diagram showing the positional relationship between the bus bar and the magnetic sensor in the electronic device according to the comparative example. [Figure 9] A diagram showing the positional relationship between the bus bar and the magnetic sensor in the electronic device according to the present embodiment. [Figure 10] A plan view of the original metal plate of the bus bar. [Figure 11] A plan view of the metal plate before being bent to form the bus bar. [Figure 12] A plan view of the bent metal plate, that is, the bus bar. [Figure 13] A perspective view of the bus bar according to the modified example.

MODE FOR CARRYING OUT THE INVENTION

[0019] Hereinafter, the present invention will be described through embodiments of the invention. However, the following embodiments do not limit the invention according to the claims. Also, not all combinations of features described in the embodiments are essential for the solution means of the invention.

[0020] FIG. 1 shows an example of a perspective view of an electronic device 10 according to the present embodiment. The electronic device 10 includes a magnetic sensor 12, a bus bar 100, a power module 30, and a substrate 20. FIG. 2 is a plan view of the electronic device 10 as seen from the substrate 20 side. FIG. 3 is a side view of the electronic device 10 as seen from the side surface side of the bus bar 100.

[0021] The power module 30 has a plurality of output terminals 32. The plurality of output terminals 32 are arranged at intervals along one side surface of the power module 30. The power module 30 is a power converter that converts direct current into alternating current. The power module 30 converts direct current into three-phase alternating current. Note that the number and position of the output terminals 32 provided in the power module 30 are not limited to the form shown in FIG. 1.

[0022] The substrate 20 is placed on the mounting surface of the power module 30. The mounting surface is an example of a first surface. The substrate 20 has a plurality of protrusions 22 that protrude from the edge 21. The plurality of protrusions 22 are positioned opposite the output terminals 32.

[0023] Multiple magnetic sensors 12 are arranged on each of the multiple protrusions 22. Each magnetic sensor 12 has two magnetoelectric conversion elements that detect the magnetic field generated by the measurement current flowing through the busbar 100. Each magnetic sensor 12 incorporates two magnetoelectric conversion elements having magnetosensitive surfaces. Each magnetic sensor 12 may have three or more magnetoelectric conversion elements. The magnetoelectric conversion elements may be longitudinal magnetic field detection elements, such as Hall elements. In this embodiment, the multiple magnetic sensors 12 are arranged on the side of the multiple protrusions 22 opposite to the side on which the power modules 30 are mounted. However, if the positional relationship between the busbar 100 and the magnetic sensors 12 satisfies the relationship described later, the multiple magnetic sensors 12 may be arranged on the same side of the multiple protrusions 22 as the side on which the power modules 30 are mounted. The multiple magnetic sensors 12 may be arranged on either side of each of the multiple protrusions 22. That is, regardless of which side of the protrusion 22 the magnetic sensors 12 are arranged on, it means that the magnetic sensors 12 are located on the protrusions 22.

[0024] Multiple busbars 100 are fixed to each of the multiple output terminals 32. The busbars 100 may be welded to the output terminals 32.

[0025] The magnetic sensor 12 detects the magnetic field generated by the measured current flowing through the busbar 100, and the magnetic sensor 12 outputs a signal corresponding to the magnitude of the magnetic field as a signal indicating the current value of the measured current flowing through the busbar 100. In other words, the busbar 100 and the magnetic sensor 12 constitute a current sensor. In this embodiment, an example is described in which the substrate 20 is placed on the mounting surface of the power module 30, but the busbar 100 may be placed on the surface of the substrate 20 on which multiple magnetic sensors 12 are provided, as long as the positional relationship between the busbar 100 and the magnetic sensor 12 satisfies the relationship described later.

[0026] It is preferable that the multiple protrusions 22 on the substrate 20 are arranged so as not to come into contact with the busbar 100. This makes it easier to ensure insulation between the busbar 100 and the magnetic sensor 12. When the multiple protrusions 22 on the substrate 20 on which the busbar 100 and the multiple magnetic sensor 12 are mounted are arranged so as not to come into contact with the busbar 100, the substrate 20 and the busbar 100 may be positioned by fixing them to the power module 30.

[0027] Figure 4 is a perspective view of the busbar 100. Figure 5 is a side view of the busbar 100. Figure 6 is a top view of the busbar 100. Figures 4 to 6 also show the positional relationship between the busbar 100 and the magnetic sensor 12.

[0028] The busbar 100 has a first conductive member 101 and a second conductive member 110 that extend in a first direction (y-axis) and are spaced apart. The busbar 100 further has a connecting member 112 that is positioned between the first conductive member 101 and the second conductive member 110 and connects the first conductive member 101 and the second conductive member 110. The busbar 100 may be made of a conductive material mainly composed of copper.

[0029] The first conductive member 101 has a first flow path section 102 and a second flow path section 104 through which the measurement current flows. The first flow path section 102 and the second flow path section 104 extend in a first direction with a gap between them. The first conductive member 101 further has a first connecting section 103 and a second connecting section 105, which are spaced apart from each other and connect the first flow path section 102 and the second flow path section 104. The first connecting section 103 and the second connecting section 105 may connect both ends of the first flow path section 102 and the second flow path section 104, respectively.

[0030] The second conductive member 110 has a third flow path section 106 and a fourth flow path section 108 through which the measurement current flows. The third flow path section 106 and the fourth flow path section 108 extend in a first direction with a gap between them. The second conductive member 110 further has a third connecting section 107 and a fourth connecting section 109, which are spaced apart from each other and connect the third flow path section 106 and the fourth flow path section 108. The third connecting section 107 and the fourth connecting section 109 may connect both ends of the third flow path section 106 and the fourth flow path section 108, respectively. The first connecting section 103 and the third connecting section 107 may be positioned opposite each other in a second direction (x-axis direction) that intersects with the first direction (y-axis direction), and the second connecting section 105 and the fourth connecting section 109 may be positioned opposite each other in the second direction (x-axis direction).

[0031] The busbar 100 has a first terminal connecting member 114 that is connected to the first conductive member 101 and protrudes from the second connecting portion 105 toward the fourth connecting portion 109. The busbar 100 also has a second terminal connecting member 116 that is connected to the second conductive member 110 and protrudes from the fourth connecting portion 109 toward the second connecting portion 105. The first terminal connecting member 114 and the second terminal connecting member 116 may be fixed to the output terminal 32 by welding or other means.

[0032] The magnetic sensor 12 does not overlap with the first conductive member 101, the second conductive member 110, and the connecting member 112 when viewed from the magnetosensitive surface 11a side (positive z-axis direction) of the magnetoelectric conversion element 11. The magnetic sensor 12 does not necessarily overlap with the first terminal connecting member 114 and the second terminal connecting member 116 when viewed from the magnetosensitive surface 11a side (positive z-axis direction) of the magnetoelectric conversion element 11. Furthermore, the magnetosensitive surface 11a of the magnetoelectric conversion element 11 does not overlap with the first conductive member 101 and the second conductive member 110 when viewed from a second direction (x-axis direction) that is along the magnetosensitive surface 11a and intersects with the first direction (y-axis direction), and is positioned between at least a part of the first conductive member 101 and at least a part of the second conductive member 110. The magnetic sensing surface 11a may be positioned between the first flow channel 102 and the second flow channel 104, between the first connecting portion 103 and the second connecting portion 105, between the third flow channel 106 and the fourth flow channel 108, and between the third connecting portion 107 and the fourth connecting portion 109, when viewed from the second direction.

[0033] The magnetic sensor 12 does not need to overlap with the first conductive member 101 and the second conductive member 110 when viewed from the second direction. The magnetic sensor 12 may be positioned between the first flow channel 102 and the second flow channel 104, between the first connecting portion 103 and the second connecting portion 105, between the third flow channel 106 and the fourth flow channel 108, and between the third connecting portion 107 and the fourth connecting portion 109.

[0034] Figure 7 is a plan view of the electronic device 10A according to the comparative example, as seen from the power module 30 side. The magnetic sensor 12A is located within the opening 120A of the busbar 100A.

[0035] In this configuration, the magnetic sensor 12A is located between the two current channels 101A and 102A, as shown in Figure 8. That is, when viewed from the second direction, the magnetic sensor 12A overlaps with the first conductive member 101 and the second conductive member 110. The magnetic sensor 12A, located in this position, detects a magnetic field in the direction shown in Figure 8, according to the so-called right-hand rule. If the magnetic sensor 12A, located in this position, is misaligned in the direction perpendicular to the magnetic sensing surface, the magnitude of the magnetic field detected by the magnetoelectric conversion element of the magnetic sensor 12A is likely to be misaligned. In other words, the measured value corresponding to the magnitude of the magnetic field measured by the magnetic sensor 12A is likely to be error-prone due to misalignment in the direction perpendicular to the magnetic sensing surface of the magnetic sensor 12A.

[0036] On the other hand, according to the configuration of the electronic device 10 in this embodiment, the magnetic sensor 12 is located between current channels of different heights in the direction perpendicular to the magnetic surface, as shown in Figure 9. More specifically, the magnetic sensor 12 is surrounded by four channels: the first channel section 102, the second channel section 104, the third channel section 106, and the fourth channel section 108. In this way, the presence of current channels of different heights in the direction perpendicular to the magnetic surface means that even if the magnetic sensor 12 is misaligned in the direction perpendicular to the magnetic surface, the magnitude of the magnetic field detected by the magnetoelectric conversion element of the magnetic sensor 12 is less likely to be affected by misalignment of the magnetic sensor 12 in the direction perpendicular to the magnetic surface. Therefore, the measured value corresponding to the magnitude of the magnetic field measured by the magnetic sensor 12 is less likely to be affected by errors due to misalignment of the magnetic sensor 12 in the direction perpendicular to the magnetic surface.

[0037] For example, in the comparative example, if the magnetic sensor 12A is shifted by 0.1 mm in the direction perpendicular to the magnetic surface, the measured value, i.e., the current value, measured by the magnetic sensor 12A will have an error of 2% or more, according to the simulation results. On the other hand, in the present embodiment, if the magnetic sensor 12 is shifted by 0.1 mm in the direction perpendicular to the magnetic surface, the current value measured by the magnetic sensor 12 will have an error of 0.5% or less, according to the simulation results.

[0038] Furthermore, the magnetic sensor 12 is mounted on a protrusion 22 provided on the edge 21 of the substrate 20. When viewed from the magnetosensitive surface 11a side of the magnetoelectric conversion element 11, the protrusion 22 and the magnetic sensor 12 do not overlap with the first conductive member 101, the second conductive member 110, and the connecting member 112. When viewed from the magnetosensitive surface 11a side of the magnetoelectric conversion element 11, the protrusion 22 and the magnetic sensor 12 are located between the first conductive member 101 and the second conductive member 110.

[0039] With this configuration, the busbar 100 is fixed to the output terminal 32 of the power module 30, and the substrate 20 on which the magnetic sensor 12 is mounted on the protrusion 22 can be moved from above the mounting surface of the power module 30 along a direction perpendicular to the mounting surface (z-axis direction) to be positioned on the mounting surface of the power module 30. Positioning of the power module 30 and the substrate 20 may be performed, for example, by press-fit pins.

[0040] The busbar 100 may be fixed to the output terminal 32 of the power module 30 by welding, and the magnetic sensor 12 may be fixed to the circuit board 20 by soldering. Therefore, by precisely positioning the power module 30 and the circuit board 20 so that they are in a predetermined positional relationship using press-fit pins or the like, the positioning of the magnetic sensor 12 and the busbar 100 can also be performed with high precision.

[0041] Next, we will explain the manufacturing method of the busbar 100.

[0042] Figure 10 shows the metal plate 300 that forms the basis of the busbar 100. The metal plate 300 has a main body 301 and extensions 302 and 304. The extensions 302 and 304 extend along the short side from both sides of one end of the main body 301 in the longitudinal direction. In plan view, the metal plate 300 is T-shaped.

[0043] As shown in Figure 11, the metal plate 300 is cut out. Specifically, the main body portion 301 is cut out from the center of one end in the longitudinal direction toward the other end in the longitudinal direction, forming a groove 310, and the main body portion 301 takes on a U-shape. Openings 306 and 308 are formed in the longitudinal direction in the first portion 305 and the second portion 307 of the main body portion 301, which are opposite each other on either side of the groove 310. Then, the metal plate 300 is folded inward along the dashed line shown in Figure 11, forming the busbar 100 as shown in Figure 12.

[0044] In the above embodiment, the busbar 100 described an example in which the magnetic sensor is surrounded by four flow paths. However, the busbar 100 may have only two diagonally opposite flow paths among the first flow path section 102, the second flow path section 104, the third flow path section 106, and the fourth flow path section 108. That is, as shown in Figure 13, the busbar 100 may have the first flow path section 102 and the fourth flow path section 108, but not the second flow path section 104 and the third flow path section 106. Alternatively, the busbar 100 may have the second flow path section 104 and the third flow path section 106, but not the first flow path section 102 and the fourth flow path section 108.

[0045] As described above, the electronic device 10 according to this embodiment can suppress detection errors due to positional misalignment in the thickness direction of the magnetic sensor 12 while improving the ease of mounting the magnetic sensor 12 onto the power module 30.

[0046] Although the present invention has been described above using embodiments, the technical scope of the present invention is not limited to the scope described in the above embodiments. It will be apparent to those skilled in the art that various modifications or improvements can be made to the above embodiments. It will be clear from the claims that such modified or improved forms may also be included in the technical scope of the present invention.

[0047] It should be noted that the execution order of operations, procedures, steps, and stages in the apparatus, systems, programs, and methods shown in the claims, specifications, and drawings is not explicitly stated as "before," "prior to," etc., and that these can be implemented in any order unless the output of a previous process is used in a later process. Even if the operation flow in the claims, specifications, and drawings is described using phrases such as "first," "next," etc. for convenience, it does not mean that it is essential to perform the operations in that order. [Explanation of symbols]

[0048] 10,10A Electronic Devices 10A Electronic Devices 11. Magnetoelectric conversion element 11a Magnetically sensitive surface 12,12A Magnetic Sensor 20 circuit boards 21 Edge 22 Protrusion 30 Power Modules 32 output terminals 100, 100A busbar 101A, 102A channel 101 First conductive member 110 Second conductive member 102 First channel section 103 1st connection part 104 Second channel section 105 2nd connection part 106 Third channel section 107 Third connection part 108 Fourth channel section 109 4th connection part 112 Connecting member 114 First terminal connecting member 116 Second terminal connecting member 300 metal plate 301 Main body 302,304 Extension

Claims

1. A busbar through which the measurement current flows, A magnetic sensor having at least two magnetoelectric conversion elements for detecting the magnetic field generated by the measurement current flowing through the busbar, Equipped with, The aforementioned busbar is The magnetic sensor is positioned opposite to a first conductive member and a second conductive member, both extending in the first direction, A connecting member is disposed between the first conductive member and the second conductive member and connects the first conductive member and the second conductive member. It has, When viewed from the magnetosensitive surface side of the at least two magnetoelectric conversion elements, the magnetic sensor does not overlap with the first conductive member, the second conductive member, and the connecting member. The second direction is defined as a direction along the magnetic surface and intersecting the first direction. Viewed from the second direction, the magnetic surface does not overlap with the first conductive member and the second conductive member, and is positioned between at least a portion of the first conductive member and at least a portion of the second conductive member. The first conductive member has a first flow path portion and a second flow path portion that extend in a first direction at a distance from each other and through which the measurement current flows, and a first connecting portion and a second connecting portion that are spaced apart from each other and connect the first flow path portion and the second flow path portion, respectively. The second conductive member has a third channel section and a fourth channel section that extend in the first direction at a distance from each other and through which the measurement current flows, and a third connecting section and a fourth connecting section that are spaced apart from each other and connect the third channel section and the fourth channel section. A current sensor in which, when viewed from the second direction, the magnetic sensing surface is positioned between the first flow channel and the second flow channel, between the first connecting portion and the second connecting portion, and between the third flow channel and the fourth flow channel, and between the third connecting portion and the fourth connecting portion.

2. The current sensor according to claim 1, wherein, when viewed from the second direction, the magnetic sensor does not overlap with the first conductive member and the second conductive member.

3. The current sensor according to claim 1, wherein, when viewed from the second direction, the magnetic surface is disposed between the first conductive member and the second conductive member.

4. The current sensor according to claim 1, wherein the at least two magnetoelectric conversion elements are longitudinal magnetic field detection elements that detect a magnetic field perpendicular to the magnetosensitive surface.

5. A current sensor according to any one of claims 1 to 4, An electronic module having an output terminal, A substrate placed at a predetermined position on the first surface of the electronic module and Equipped with, The busbar is fixed to the output terminal, The magnetic sensor is an electronic device disposed on the substrate.

6. The substrate has a protrusion that extends from the edge, The electronic device according to claim 5, wherein the magnetic sensor is disposed on the protruding portion.

7. The electronic device according to claim 6, wherein, when viewed from the magnetosensitive surface side of the at least two magnetoelectric conversion elements, the protruding portion does not overlap with the first conductive member and the second conductive member.

8. The electronic device according to claim 6, wherein the protrusion is disposed between the first conductive member and the second conductive member.

9. The connecting member connects the first connecting portion and the third connecting portion, The aforementioned busbar is A first terminal connecting member is connected to the first conductive member and protrudes from the second connecting portion toward the fourth connecting portion, It further comprises a second terminal connecting member that is connected to the second conductive member and protrudes from the fourth connecting portion toward the second connecting portion, The first terminal connecting member and the second terminal connecting member are fixed to the output terminal. The electronic device according to claim 5.

10. The electronic module is equipped with a plurality of output terminals, The substrate has a plurality of protrusions that protrude from the edge and are spaced apart from each other. The current sensor comprises a plurality of busbars and a plurality of magnetic sensors. The electronic device according to claim 6, wherein the plurality of magnetic sensors are arranged on each of the plurality of protrusions.

11. The electronic device according to claim 10, wherein the electronic module is a power module.

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