MAGNETIC DETECTION DEVICE

Abstract

Magnetic detection device (100), comprising: a first magnetic sensor (10); a second magnetic sensor (20) arranged so that it is opposite the first magnetic sensor (10); and a resin body (30) which is provided between the first magnetic sensor (10) and the second magnetic sensor (20), the first magnetic sensor (10) comprises: a first sealing body (11) in which a first detection element is sealed; and several first connections (12a, 12b, 12c), each of which projects in one direction from the first sealing body (11) and which are arranged side by side, wherein each of the multiple first connections (12a, 12b, 12c) has a plate shape along an arrangement direction of the multiple first connections (12a, 12b, 12c), the second magnetic sensor (20) comprises: a second sealing body (21) in which a second detection element is sealed; and several second connections (22a, 22b, 22c), each of which projects from the second sealing body (21) in the same direction as a projection direction from each of the several first connections (12a, 12b, 12c) and which are arranged side by side, wherein each of the several second terminals (22a, 22b, 22c) has a plate shape that is parallel to each of the several first terminals (12a, 12b, 12c), wherein the resin body (30) comprises: a resin body main body (30a); several first wiring leads (31a, 31b, 31c) formed on a surface of the resin body main body (30a) on the side of the first magnetic sensor (10); and several second wiring lines (32a, 32b, 32c) formed on a surface of the resin body main body (30a) on the side of the second magnetic sensor (20), wherein each of the several first wiring lines (31a, 31b, 31c) has a plate shape which is parallel to each of the several first terminals (12a, 12b, 12c), wherein each of the several first wiring lines (31a, 31b, 31c) comprises a first overlap section (35) which overlaps with a corresponding one of the several first terminals (12a, 12b, 12c), wherein the first overlap section (35), viewed in a normal direction to each of the several first terminals (12a, 12b, 12c), is arranged at a position offset from all of the several second terminals (22a, 22b, 22c) and the several second wiring leads (32a, 32b, 32c), wherein each of the several first wiring lines (31a, 31b, 31c) is welded to a corresponding one of the several first terminals (12a, 12b, 12c) at the first overlap section (35), wherein each of the several second wiring lines (32a, 32b, 32c) has a plate shape which is parallel to each of the several first terminals (12a, 12b, 12c), wherein each of the several second wiring lines (32a, 32b, 32c) comprises a second overlap section (36) which overlaps with a corresponding one of the several second terminals (22a, 22b, 22c), wherein the second overlap section (36), viewed in the normal direction, is arranged at a position offset from all of the multiple first terminals (12a, 12b, 12c) and the multiple first wiring leads (31a, 31b, 31c), and wherein each of the several second wiring leads (32a, 32b, 32c) is welded to a corresponding one of the several second terminals (22a, 22b, 22c) at the second overlap section (36).

Description

BACKGROUND OF THE INVENTION Area of ​​the invention

[0001] This disclosure relates to a magnetic detection device comprising two magnetic sensors. Description of the state of the art

[0002] JP 5 949 748 B2 describes a position sensing device comprising two magnetic sensors. The position sensing device includes a first sensor component and a second sensor component, which has the same configuration as the first sensor component. Both the first and second sensor components comprise a magnetic sensor, a wiring lead welded to a terminal of the magnetic sensor, and a resin body configured to hold the magnetic sensor and the wiring lead. The first and second sensor components are held by separate resin bodies in a state where they are positioned opposite each other.

[0003] Further magnetic sensors with stacked sensor elements are described in DE 10 2015 202 333 A1, WO 2020 / 060 017 A1 and DE 11 2017 001 253 T5.

[0004] The manufacture of the aforementioned position detection device requires a step of molding components forming the first sensor component with resin, a step of molding components forming the second sensor component with resin, and a further step of molding both the first and second sensor components with resin. Consequently, the number of manufacturing steps for the aforementioned position detection device is increased.

[0005] To reduce the number of manufacturing steps, it is conceivable to combine the two magnetic sensors and a resin body, which have been pre-molded together, and then weld a terminal of each magnetic sensor to a wiring lead formed within the resin body. A wiring lead to be connected to a terminal of one magnetic sensor and a wiring lead to be connected to a terminal of the other magnetic sensor are pre-molded into the resin body.

[0006] Resistance welding is generally used to weld a terminal and a wiring lead. In resistance welding, the overlapping terminal and the wiring lead are placed between a pair of welding electrodes from both sides, and an electric current is applied between the electrodes while pressure is exerted on the terminal and wiring lead. This causes the contact between the terminal and wiring lead to melt due to Joule heating, thus welding the terminal and wiring lead together.

[0007] In a state where the two magnetic sensors and the resin body are combined, the terminals of both magnetic sensors all point in the same direction. Therefore, if the terminal of one magnetic sensor and the wiring lead are welded together, the welding electrode can interfere with the terminal of the other magnetic sensor. Consequently, the problem arises that it is sometimes difficult to weld the terminals of the two magnetic sensors and the wiring lead together. SUMMARY OF THE INVENTION

[0008] This revelation was made to solve the above-mentioned problem and aims to provide a magnetic sensing device in which, in the magnetic sensing device comprising two magnetic sensors, a terminal for each magnetic sensor and a wiring line, can be easily welded together.

[0009] According to at least one embodiment of this disclosure, a magnetic sensing device is provided, comprising: a first magnetic sensor; a second magnetic sensor arranged such that it is opposite the first magnetic sensor; and a resin body provided between the first magnetic sensor and the second magnetic sensor, wherein the first magnetic sensor comprises: a first sealing body in which a first sensing element is sealed; and several first connections, each of which projects from the first sealing body in one direction and is arranged side by side, each of the several first connections having a plate shape along one arrangement direction of the several first connections, wherein the second magnetic sensor comprises: a second sealing body in which a second sensing element is sealed; and several second connections.each of which projects from the second sealing body in the same direction as a projection direction from each of the multiple first connections and which are arranged side by side, each of the multiple second connections having a plate shape parallel to each of the multiple first connections, the resin body comprising: a resin body main body; multiple first wiring leads formed on a surface of the resin body main body on the side of the first magnetic sensor; and multiple second wiring leads formed on a surface of the resin body main body on the side of the second magnetic sensor, each of the multiple first wiring leads having a plate shape parallel to each of the multiple first connections, each of the multiple first wiring leads comprising a first overlap section overlapping with a corresponding one of the multiple first connections.wherein the first overlap section, viewed in a normal direction to each of the multiple first terminals, is arranged at a position offset from all of the multiple second terminals and the multiple second wiring leads, wherein each of the multiple first wiring leads is welded to a corresponding one of the multiple first terminals at the first overlap section, wherein each of the multiple second wiring leads has a plate shape parallel to each of the multiple first terminals, wherein each of the multiple second wiring leads comprises a second overlap section overlapping with a corresponding one of the multiple second terminals, wherein the second overlap section, viewed in a normal direction, is arranged at a position offset from all of the multiple first terminals and the multiple first wiring leads.and wherein each of the several second wiring leads is welded to a corresponding one of the several second terminals at the second overlap section.

[0010] According to this disclosure, in the magnetic sensing device comprising two magnetic sensors, a terminal of each magnetic sensor and a wiring line can be easily welded together. BRIEF DESCRIPTION OF THE DRAWINGS Fig. Figure 1 is a perspective view illustrating a configuration of a magnetic detection device according to a first embodiment. Fig. Figure 2 is a top view illustrating a configuration of a first magnetic sensor of the magnetic detection device according to the first embodiment. Fig. Figure 3 is a top view illustrating a configuration of a second magnetic sensor of the magnetic detection device according to the first embodiment. Fig. Figure 4 is a side view illustrating the configuration of the magnetic detection device according to the first embodiment. Fig. Figure 5 is a top view showing the configuration of the magnetic detection device according to the first embodiment. Fig. Figure 6 is a perspective view illustrating a configuration of a magnetic detection device according to a second embodiment. Fig. Figure 7 is a perspective view showing a configuration of a wiring component enclosed in a resin body of the magnetic detection device according to the second embodiment. Fig. Figure 8 is a top view illustrating a configuration of a first magnetic sensor of a magnetic detection device according to a third embodiment. Fig. Figure 9 is a top view illustrating a configuration of a second magnetic sensor of the magnetic detection device according to the third embodiment. Fig. Figure 10 is a top view illustrating a configuration of the magnetic detection device according to the third embodiment. Fig. Figure 11 is a perspective view illustrating a configuration of two wiring components enclosed in a resin body of a magnetic sensing device according to a fourth embodiment. Fig. Figure 12 is a side view illustrating a configuration of a magnetic detection device according to a fifth embodiment. Fig. Figure 13 is a front view illustrating the configuration of the magnetic detection device according to the fifth embodiment. DESCRIPTION OF THE EXECUTION FORMS First embodiment

[0011] A magnetic detection device according to a first embodiment is described. Fig. Figure 1 is a perspective view illustrating a configuration of the magnetic detection device according to the first embodiment. As shown in Fig. Figure 1 shows a magnetic detection device 100 arranged on a radially outer side of a rotating magnetic body 200, which is a detection target. The magnetic detection device 100 faces an outer circumferential surface of the rotating magnetic body 200 across a gap. The magnetic detection device 100 is configured to detect the number of revolutions or the angle of rotation of the rotating magnetic body 200 based on a change in the magnetic field caused by the rotation of the rotating magnetic body 200.

[0012] The magnetic rotating body 200 comprises a first magnetic rotating body 201 and a second magnetic rotating body 202. The first magnetic rotating body 201 and the second magnetic rotating body 202 are configured to rotate together about an axis of rotation 203. The first magnetic rotating body 201 and the second magnetic rotating body 202 are adjacent to each other in one direction along the axis of rotation 203. At least one outer circumferential section of the first magnetic rotating body 201 and the second magnetic rotating body 202 consists of a magnetic material. Each of the first magnetic rotating body 201 and the second magnetic rotating body 202 can be a gear with irregularities on an outer circumferential section thereof or a magnetized plate with a magnetized outer circumferential section.

[0013] The magnetic sensing device 100 comprises a first magnetic sensor 10, a second magnetic sensor 20 arranged opposite the first magnetic sensor 10, and a resin body 30 positioned between the first magnetic sensor 10 and the second magnetic sensor 20. The first magnetic sensor 10 is an integrated circuit (IC) comprising a first sensing element (not shown) configured to detect a magnetic field of the first rotating magnetic body 201. The second magnetic sensor 20 is an IC comprising a second sensing element (not shown) configured to detect a magnetic field of the second rotating magnetic body 202. Different signals are output by the first magnetic sensor 10 and the second magnetic sensor 20. The first magnetic sensor 10 and the second magnetic sensor 20 are positioned opposite each other in a plane perpendicular to the axis of rotation 203 of the rotating magnetic body 200.The following describes the upward and downward direction in . Fig. 1, in which the first magnetic sensor 10 and the second magnetic sensor 20 are opposite each other, sometimes referred to as the "thickness direction of the magnetic detection device 100". The thickness direction of the magnetic detection device 100 is parallel to the axis of rotation 203.

[0014] Fig. Figure 2 is a top view illustrating a configuration of the first magnetic sensor of the magnetic detection device according to the first embodiment. Fig. Figure 2 shows the configuration of the first magnetic sensor 10 from the top. Fig. 1 seen. As in Fig. As shown in Figure 2, the first magnetic sensor 10 comprises a first sealing body 11 and several first connections 12a, 12b, and 12c. The first sealing body 11 has the shape of a cuboid. The first sensing element, which is configured to detect the magnetic field of the first rotating magnetic body 201, is sealed within the first sealing body 11.

[0015] The first terminal 12a, the first terminal 12b and the first terminal 12c each protrude from one side of the first sealing body 11 in one direction, in the top view of the first magnetic sensor 10, as shown in Fig. Figure 2 shows the first terminal 12a, the first terminal 12b, and the first terminal 12c arranged next to each other at specific intervals. The orientation of the first terminal 12a, the first terminal 12b, and the first terminal 12c corresponds to the upward and downward directions in the diagram. Fig. 2. The first terminal 12a, the first terminal 12b and the first terminal 12c are in the specified order from top to bottom of Fig. 2 arranged.

[0016] Each of the first terminals 12a, 12b, and 12c is a plate-shaped terminal with a plate-like shape along the aforementioned arrangement direction. In the first embodiment, a normal direction of each of the first terminals 12a, 12b, and 12c is parallel to the thickness direction of the magnetic sensing device 100. The width of each of the first terminals 12a, 12b, and 12c is equal to or less than the distance between two adjacent first terminals. In the first embodiment, three first terminals 12a, 12b, and 12c are provided, but the number of first terminals is not limited to three.

[0017] In Fig. Figure 2 shows a center line 13, the center of the first sealing body 11 in the arrangement direction of the first connection 12a, the first connection 12b, and the first connection 12c. The first connection 12a, the first connection 12b, and the first connection 12c are arranged asymmetrically with respect to the center line 13. Furthermore, none of the first connections 12a, 12b, and 12c are arranged on the center line 13.

[0018] Fig. Figure 3 is a top view illustrating a configuration of the second magnetic sensor of the magnetic detection device according to the first embodiment. Fig. Figure 3 shows the arrangement of the second magnetic sensor 20 from the underside of Fig. 1 seen. In the first embodiment, the second magnetic sensor 20 has the same shape as the first magnetic sensor 10. The first magnetic sensor 10 and the second magnetic sensor 20 can be common components that have the same configuration.

[0019] As in Fig. As shown in Figure 3, the second magnetic sensor 20 comprises a second sealing body 21 and several second connections 22a, 22b, and 22c. The second sealing body 21 has the shape of a cuboid. The second sensing element, which is configured to detect the magnetic field of the second rotating magnetic body 202, is sealed within the second sealing body 21.

[0020] The second terminal 22a, the second terminal 22b and the second terminal 22c each point from one side of the second sealing body 21 in one direction in the top view of the second magnetic sensor 20, as shown in Fig. Figure 3 shows the following. The second terminal 22a, the second terminal 22b, and the second terminal 22c are arranged next to each other at specific intervals. One arrangement direction of the second terminal 22a, the second terminal 22b, and the second terminal 22c corresponds to the upward and downward directions in Fig. 3. The second terminal 22a, the second terminal 22b and the second terminal 22c are in the specified order from top to bottom of Fig. 3 arranged.

[0021] Each of the second terminals 22a, 22b, and 22c is a plate-shaped terminal. In the magnetic detection device 100, each of the second terminals 22a, 22b, and 22c is parallel to each of the first terminals 12a, 12b, and 12c. That is, the normal direction of each of the first terminals 22a, 22b, and 22c is parallel to the normal direction of each of the first terminals 12a, 12b, and 12c. The width of each second terminal 22a, 22b, and 22c is equal to or less than the distance between any two adjacent second terminals.In the first embodiment, three second connections 22a, 22b and 22c are provided, but the number of second connections is not limited to three.

[0022] In Fig. Figure 3 shows a center line 23, the center of the second sealing body 21 in the arrangement direction of the second connection 22a, the second connection 22b, and the second connection 22c. The second connection 22a, the second connection 22b, and the second connection 22c are arranged asymmetrically with respect to the center line 23. Furthermore, none of the second connection 22a, the second connection 22b, and the second connection 22c are located on the center line 23.

[0023] Fig. Figure 4 is a side view illustrating the configuration of the magnetic detection device according to the first embodiment. Fig. Figure 5 is a top view showing the configuration of the magnetic detection device according to the first embodiment. Fig. Figure 5 shows the configuration of the magnetic sensing device 100 as seen from the side of the first magnetic sensor 10, along the normal direction of each of the first terminal 12a, the first terminal 12b and the first terminal 12c. Fig. 4 and Fig. Figure 5 is a resin body main body 30a shown with a hatching.

[0024] As in Fig. 4 and Fig. As shown in Figure 5, the resin body 30 comprises the resin body main body 30a, several first wiring leads 31a, 31b, and 31c, and several second wiring leads 32a, 32b, and 32c. The first wiring leads 31a, 31b, and 31c are formed on a surface of the resin body main body 30a on the side of the first magnetic sensor 10. The second wiring leads 32a, 32b, and 32c are formed on a surface of the resin body main body 30a on the side of the second magnetic sensor 20. The first wiring leads 31a, 31b, and 31c and the second wiring leads 32a, 32b, and 32c are integrally formed with the resin body main body 30a by injection molding.

[0025] The first wiring conductor 31a, the first wiring conductor 31b, and the first wiring conductor 31c are arranged side by side along the orientation of the first terminal 12a, the first terminal 12b, and the first terminal 12c. The first wiring conductor 31a, the first wiring conductor 31b, and the first wiring conductor 31c are arranged in the specified order from top to bottom in Fig. 5. The first wiring conductor 31a, the first wiring conductor 31b, and the first wiring conductor 31c each extend linearly along a forward direction of the first terminal 12a, the first terminal 12b, and the first terminal 12c, respectively. Each of the first wiring conductor 31a, the first wiring conductor 31b, and the first wiring conductor 31c has a plate shape that is parallel to each of the first terminal 12a, the first terminal 12b, and the first terminal 12c. That is, a normal direction of each of the first wiring conductor 31a, the first wiring conductor 31b, and the first wiring conductor 31c is parallel to the normal direction of each of the first terminal 12a, the first terminal 12b, and the first terminal 12c.

[0026] The first wiring conductor 31a includes at one end section a first overlap section 35 which overlaps with the first terminal 12a. The first wiring conductor 31a overlaps with the first terminal 12a at the first overlap section 35, viewed in the normal direction of the first wiring conductor 31a, and is also in contact with the first terminal 12a at the first overlap section 35. Similarly, both the first wiring conductor 31b and the first wiring conductor 31c include at one of their end sections a first overlap section 35 which overlaps with the corresponding first terminal 12b or the first terminal 12c. The first overlap section 35 serves as a contact electrode for the first wiring conductor 31a, the first wiring conductor 31b, and the first wiring conductor 31c. The first wiring line 31a is welded to the first connection 12a at the first overlap section 35.Similarly, the first wiring lead 31b and the first wiring lead 31c are each welded to the corresponding first terminal 12b or the first terminal 12c on the first overlap section 35. In the thickness direction of the magnetic detection device 100, the first overlap section 35 is arranged between the first terminal 12a and the resin body main body 30a.

[0027] Furthermore, each of the first wiring line 31a, the first wiring line 31b, and the first wiring line 31c comprises a connection terminal 37 at its other end section, which projects from the resin body main body 30a. The connection terminal 37 is to be connected via a cable harness to a control device provided outside the magnetic detection device 100.

[0028] The second wiring conductor 32a, the second wiring conductor 32b, and the second wiring conductor 32c are arranged side by side along the orientation of the first wiring conductor 31a, the first wiring conductor 31b, and the first wiring conductor 31c. The second wiring conductor 32a, the second wiring conductor 32b, and the second wiring conductor 32c are arranged in the specified order from the bottom to the top. Fig. 5. The second wiring conductor 32a, the second wiring conductor 32b, and the second wiring conductor 32c each extend linearly along a projection direction of the second terminal 22a, the second terminal 22b, and the second terminal 22c. Each of the second wiring conductor 32a, the second wiring conductor 32b, and the second wiring conductor 32c has a plate shape that is parallel to each of the second terminal 22a, the second terminal 22b, and the second terminal 22c. That is, a normal direction of each of the second wiring line 32a, the second wiring line 32b and the second wiring line 32c is parallel to the normal direction of each of the first terminal 12a, the first terminal 12b, the first terminal 12c, the second terminal 22a, the second terminal 22b and the second terminal 22c.

[0029] The second wiring conductor 32a includes a second overlap section 36 at one end, which overlaps with the second terminal 22a. Similarly, both the second wiring conductor 32b and the second wiring conductor 32c include a second overlap section 36 at one end, which overlaps with the corresponding second terminal 22b or the second terminal 22c. The second overlap section 36 serves as a contact electrode for the second wiring conductor 32a, the second wiring conductor 32b, and the second wiring conductor 32c. The second wiring conductor 32a is welded to the second terminal 22a at the second overlap section 36. Similarly, the second wiring conductor 32b and the second wiring conductor 32c are each welded to the corresponding second terminal 22b or the second terminal 22c at the second overlap section 36.In the thickness direction of the magnetic detection device 100, the second overlap section 36 is arranged between the second connection 22a and the resin body main body 30a.

[0030] Furthermore, each of the second wiring leads 32a, 32b, and 32c comprises a connection terminal 38 at its other end section, which projects from the resin body main body 30a. The connection terminal 38 is to be connected via a cable harness to the control device provided outside the magnetic detection device 100.

[0031] Viewed in the normal direction of the first terminal 12a, the first overlap section 35 of the first wiring conductor 31a is arranged in a position that is offset relative to all second terminals 22a, 22b, 22c, 32a, 32b, and 32c. That is, viewed in the aforementioned normal direction, at least part of the first overlap section 35 of the first wiring conductor 31a is prevented from overlapping with all of the second terminal 22a, the second terminal 22b, the second terminal 22c, the second wiring conductor 32a, the second wiring conductor 32b, and the second wiring conductor 32c.

[0032] Similarly, viewed in the normal direction mentioned above, the first overlap section 35 of each of the first wiring conductor 31b and the first wiring conductor 31c is arranged in a position that is offset from all of the second terminal 22a, the second terminal 22b, the second terminal 22c, the second wiring conductor 32a, the second wiring conductor 32b, and the second wiring conductor 32c. That is, viewed in the normal direction mentioned above, at least part of the first overlap section 35 of the first wiring conductor 31b is prevented from overlapping with all of the second terminal 22a, the second terminal 22b, the second terminal 22c, the second wiring conductor 32a, the second wiring conductor 32b, and the second wiring conductor 32c.Furthermore, viewed in the above-mentioned normal direction, at least part of the first overlap section 35 of the first wiring line 31c is prevented from overlapping with the entire second connection 22a, the second connection 22b, the second connection 22c, the second wiring line 32a, the second wiring line 32b and the second wiring line 32c.

[0033] Viewed in the normal direction of the second terminal 22a, the second overlap section 36 of the second wiring line 32a is located in a position that is offset from all of the first terminal 12a, the first terminal 12b, the first terminal 12c, the first wiring line 31a, the first wiring line 31b, and the first wiring line 31c. That is, viewed in the aforementioned normal direction, at least part of the second overlap section 36 of the second wiring line 32a is prevented from overlapping with all of the first terminal 12a, the first terminal 12b, the first terminal 12c, the first wiring line 31a, the first wiring line 31b, and the first wiring line 31c.

[0034] Similarly, the second overlap section 36 of the second wiring line 32b and the second wiring line 32c, viewed in the normal direction mentioned above, is arranged in a position that is offset from all of the first terminal 12a, the first terminal 12b, the first terminal 12c, the first wiring line 31a, the first wiring line 31b, and the first wiring line 31c. That is, viewed in the normal direction mentioned above, at least part of the second overlap section 36 of the second wiring line 32b is prevented from overlapping with all of the first terminal 12a, the first terminal 12b, the first terminal 12c, the first wiring line 31a, the first wiring line 31b, and the first wiring line 31c.Furthermore, viewed in the above-mentioned normal direction, at least part of the second overlap section 36 of the second wiring line 32c is prevented from overlapping with the entire first terminal 12a, the first terminal 12b, the first terminal 12c, the first wiring line 31a, the first wiring line 31b and the first wiring line 31c.

[0035] Several first holes 33a, 33b, and 33c are formed in the surface of the resin body main body 30a on the side of the first magnetic sensor 10. The first hole 33a is formed at a position where, viewed in the normal direction of the second wiring line 32a, the first hole 33a overlaps with the second overlap section 36 of the second wiring line 32a. The first hole 33a extends in the normal direction of the second wiring line 32a and passes through the resin body main body 30a to reach the second overlap section 36 of the second wiring line 32a.

[0036] Similarly, each of the first hole 33b and the first hole 33c is formed at a position where, viewed in the normal direction to each of the second wiring line 32b and the second wiring line 32c, each of the first hole 33b and the first hole 33c overlaps with the second overlap section 36 of the corresponding second wiring line 32b or the second wiring line 32c. The first hole 33b extends in the normal direction to the second wiring line 32b and passes through the resin body main body 30a to reach the second overlap section 36 of the second wiring line 32b. The first hole 33c extends in the normal direction to the second wiring line 32c and passes through the resin body main body 30a to reach the second overlap section 36 of the second wiring line 32c.

[0037] Several second holes 34a, 34b, and 34c are formed in the surface of the resin body main body 30a on the side of the second magnetic sensor 20. The second hole 34a is formed at a position where, viewed in the normal direction to the first wiring line 31a, it overlaps with the first overlap section 35 of the first wiring line 31a. The second hole 34a extends in the normal direction to the first wiring line 31a and passes through the resin body main body 30a to reach the first overlap section 35 of the first wiring line 31a.

[0038] Similarly, each of the second hole 34b and the second hole 34c is formed at a position where, viewed in the normal direction to each of the first wiring line 31b and the first wiring line 31c, each of the second hole 34b and the second hole 34c overlaps with the first overlap section 35 of the corresponding first wiring line 31b or the first wiring line 31c. The second hole 34b extends in the normal direction to the first wiring line 31b and passes through the resin body main body 30a to reach the first overlap section 35 of the first wiring line 31b. The second hole 34c extends in the normal direction to the first wiring line 31c and passes through the resin body main body 30a to reach the first overlap section 35 of the first wiring line 31c.

[0039] The steps for manufacturing the magnetic sensing device 100 are briefly described. In these steps, each of the first magnetic sensor 10, the second magnetic sensor 20, and the resin body 30 is first manufactured. The first magnetic sensor 10 and the second magnetic sensor 20 can be common components with the same configuration. The resin body 30 is manufactured by injection molding using the first wiring leads 31a, 31b, and 31c and the second wiring leads 32a, 32b, and 32c as injection-molded components.

[0040] Next, the first magnetic sensor 10, the second magnetic sensor 20, and the resin body 30 are combined so that the first magnetic sensor 10 and the second magnetic sensor 20 are positioned opposite each other across the resin body 30. The resin body 30 has a recessed section to which part of the first sealing body 11 is attached, and a recessed section to which part of the second sealing body 21 is attached. Accordingly, when the first magnetic sensor 10, the second magnetic sensor 20, and the resin body 30 are combined, the first magnetic sensor 10 and the second magnetic sensor 20 are positioned relative to the resin body 30.

[0041] Next, the first terminal 12a, the first terminal 12b and the first terminal 12c of the first magnetic sensor 10 are welded to the first wiring line 31a, the first wiring line 31b and the first wiring line 31c of the resin body 30 using resistance welding.

[0042] For example, if the first connection is 12c and the first wiring line is 31c, which is in Fig. 4, which are shown, are welded together; a welding electrode is inserted from the top into Fig. 4 against the first terminal 12c, and the other welding electrode is inserted from below. Fig. 4 is inserted into the second hole 34c to be pressed against the first overlap section 35 of the first wiring lead 31c. While pressure is exerted on the first terminal 12c and the first wiring lead 31c by the two welding electrodes, a current flow is caused between the two welding electrodes, so that the first terminal 12c and the first wiring lead 31c are welded together.

[0043] Similarly, the second terminal 22a, the second terminal 22b, and the second terminal 22c of the second magnetic sensor 20 are resistively welded to the second wiring leads 32a, 32b, and 32c of the resin body 30. The magnetic sensing device 100 is manufactured by the steps described above.

[0044] As described above, the magnetic sensing device 100 according to the first embodiment comprises the first magnetic sensor 10, the second magnetic sensor 20, which is arranged opposite the first magnetic sensor 10, and the resin body 30, which is provided between the first magnetic sensor 10 and the second magnetic sensor 20. The first magnetic sensor 10 comprises the first sealing body 11, in which the first sensing element is sealed, and several first connections 12a, 12b, and 12c, each of which projects from the first sealing body 11 in one direction and is arranged side by side. Each of the several first connections 12a, 12b, and 12c has a plate shape along the arrangement direction of the several first connections 12a, 12b, and 12c.The second magnetic sensor 20 comprises the second sealing body 21, in which the second sensing element is sealed, and the multiple second terminals 22a, 22b, and 22c, each of which projects from the second sealing body 21 in the same direction as the projection of each of the multiple first terminals 12a, 12b, and 12c and which are arranged side by side. Each of the multiple second terminals 22a, 22b, and 22c has a plate shape that is parallel to each of the multiple first terminals 12a, 12b, and 12c. The resin body 30 comprises the resin body main body 30a, the multiple first wiring leads 31a, 31b, and 31c, and the multiple second wiring leads 32a, 32b, and 32c. The several first wiring lines 31a, 31b and 31c are formed on the surface of the resin body main body 30a on the side of the first magnetic sensor 10.The multiple second wiring leads 32a, 32b, and 32c are formed on the surface of the resin body main body 30a on the side of the second magnetic sensor 20. Each of the multiple first wiring leads 31a, 31b, and 31c has a plate shape that is parallel to each of the multiple first terminals 12a, 12b, and 12c. Each of the multiple first wiring leads 31a, 31b, and 31c includes the first overlap section 35, which overlaps with a corresponding one of the multiple first terminals 12a, 12b, and 12c. In the normal direction of each of the several first terminals 12a, 12b and 12c, the first overlap section 35 is arranged in a position offset from all of the several second terminals 22a, 22b and 22c and the several second wiring lines 32a, 32b and 32c.Each of the multiple first wiring leads 31a, 31b, and 31c is welded to the corresponding multiple first terminals 12a, 12b, and 12c at the first overlap section 35. Each of the multiple second wiring leads 32a, 32b, and 32c has a plate shape that is parallel to each of the multiple first terminals 12a, 12b, and 12c. Each of the multiple second wiring leads 32a, 32b, and 32c includes the second overlap section 36, which overlaps with a corresponding multiple second terminal 22a, 22b, and 22c. Viewed in the normal direction mentioned above, the second overlap section 36 is located at a position offset from all of the multiple first terminals 12a, 12b, and 12c and the multiple first wiring leads 31a, 31b, and 31c.Each of the multiple second wiring leads 32a, 32b and 32c is welded to a corresponding one of the multiple second terminals 22a, 22b and 22c at the second overlap section 36.

[0045] In this arrangement, if the first wiring lead and the first connection at the first overlap section 35 are welded together, interference between the welding electrode and any of the multiple second connections 22a, 22b, and 22c, and between the multiple second wiring leads 32a, 32b, and 32c, can be prevented. Furthermore, if the second wiring lead and the second connection at the second overlap section 36 are welded together, interference between the welding electrode and any of the multiple first connections 12a, 12b, and 12c, and between the multiple first wiring leads 31a, 31b, and 31c, can be prevented. Thus, with the configuration described above, in the magnetic sensing device 100, which comprises the first magnetic sensor 10 and the second magnetic sensor 20, the connection of each of the first magnetic sensor 10 and the second magnetic sensor 20, and the wiring lead, can be easily welded together.Furthermore, in the configuration mentioned above, both the welding between the first wiring line and the first terminal and the welding between the second wiring line and the second terminal can be carried out by processing in a uniaxial direction.

[0046] In the magnetic sensing device according to the first embodiment, multiple first holes 33a, 33b, and 33c are formed in the surface of the resin body main body 30a on the side of the first magnetic sensor 10. Each of the multiple first holes 33a, 33b, and 33c extends in the aforementioned normal direction to reach the second overlap section 36 of the corresponding multiple second wiring leads 32a, 32b, and 32c. Multiple second holes 34a, 34b, and 34c are formed in the surface of the resin body main body 30a on the side of the second magnetic sensor 20. Each of the multiple second holes 34a, 34b, and 34c extends in the aforementioned normal direction to reach the first overlap section 35 of the corresponding multiple first wiring leads 31a, 31b, and 31c.

[0047] This configuration ensures the necessary space for welding the first wiring lead and the first terminal together, along the normal direction of the first overlap section 35. For example, when welding the first terminal 12c and the first wiring lead 31c together, one welding electrode is pressed against the first terminal 12c, and the other welding electrode is inserted into the second hole 34c to be pressed against the first overlap section 35 of the first wiring lead 31c. Accordingly, welding between the first terminal 12c and the first wiring lead 31c can be easily performed.

[0048] Furthermore, a distance required when welding the second wiring lead and the second terminal together is ensured along the normal direction of the second overlap section 36. For example, when welding the second terminal 22a and the second wiring lead 32a together, one welding electrode is inserted into the first hole 33a to be pressed against the second overlap section 36 of the second wiring lead 32a, and the other welding electrode is pressed against the second terminal 22a. Accordingly, welding between the second terminal 22c and the second wiring lead 32c can be easily carried out.

[0049] In the magnetic detection device 100 according to the first embodiment, the first magnetic sensor 10 and the second magnetic sensor 20 have the same shape. In this configuration, a single mold for forming the first sealing body 11 and the second sealing body 21 can be used. Accordingly, the manufacturing costs of the magnetic detection device 100 can be reduced. Furthermore, in this configuration, common components with the same configuration as the first magnetic sensor 10 and the second magnetic sensor 20 can be used. Accordingly, the manufacturing costs of the magnetic detection device 100 can be further reduced. Second embodiment

[0050] A magnetic detection device according to a second embodiment is described. Fig. Figure 6 is a perspective view illustrating a configuration of the magnetic detection device according to the second embodiment. Fig. Figure 7 is a perspective view illustrating a wiring component configuration enclosed in a resin body of the magnetic sensing device according to the second embodiment. Components having the same functions and effects as in the first embodiment are identified by the same reference numerals, and their description is omitted.

[0051] To control an IC, power and grounding are required, and therefore a power supply connection and a grounding connection are provided in each of the first magnetic sensor 10 and the second magnetic sensor 20. This increases the number of connection points, including the power supply and grounding connections, in the magnetic sensing device 100, which comprises the two magnetic sensors. Increasing the number of connection points increases the size of the magnetic sensing device 100. Furthermore, in some cases, increasing the number of connection points necessitates the addition of a cable harness for connection to an external device, thus increasing the cost of the magnetic sensing device 100. Therefore, it is preferable to keep the number of connection points of the magnetic sensing device 100 as low as possible.

[0052] As in Fig. 6 and Fig. As shown in Figure 7, in the second embodiment the resin body 30 comprises a wiring component 40. The wiring component 40 is integrally formed with the resin body main body 30a by injection molding. The wiring component 40 comprises a first wiring section 41, a second wiring section 42, a third wiring section 43, and a connection section 44. The first wiring section 41, the second wiring section 42, the third wiring section 43, and the connection section 44 all have a plate shape.

[0053] The first wiring section 41 forms the first wiring line 31b. The first wiring section 41 includes a contact electrode that is to be connected to the first terminal 12b. The second wiring section 42 forms the second wiring line 32b, which adjoins the first wiring line 31b, viewed in the normal direction of the first wiring line 31b. The second wiring section 42 includes a contact electrode that is to be connected to the second terminal 22b.

[0054] The connection section 44 is connected to the second wiring section 42. The connection section 44 projects from the resin body main body 30a along one direction of extension of the second wiring section 42. The connection section 44 serves as a connection terminal that is connected to an external device. The connection section 44 is formed in the same plane as the second wiring section 42. The third wiring section 43 extends in the normal direction of the first wiring line 31a and is configured to connect the first wiring section 41 and the connection section 44. In this way, the connection section 44 is electrically connected to both the first terminal 12b of the first magnetic sensor 10 and the second terminal 22b of the second magnetic sensor 20.

[0055] The wiring component 40 is configured to branch into two branches perpendicular to the first wiring conductor 31b. The wiring component 40 comprises a connection terminal at one end and two contact electrodes at the other end. The two contact electrodes are separated from each other perpendicular to the first wiring conductor 31b. The wiring component 40 can be easily manufactured by stamping a sheet of material using a press and bending the resulting sheet.

[0056] In the second embodiment, similar to the first embodiment, both the welding between the first terminal and the first wiring lead and the welding between the second terminal and the second wiring lead can be carried out by processing in a uniaxial direction. Accordingly, it is not necessary to divide the resin body 30 into two parts. Thus, in the second embodiment, the wiring component 40 can form a resin body 30 together with other wiring leads, such as the first wiring leads 31a and 31c and the second wiring leads 32a and 32c.

[0057] In the second embodiment, three first terminals 12a, 12b and 12c and three second terminals 22a, 22b and 22c are provided, but the number of first terminals and the number of second terminals are not limited to three. Furthermore, in the second embodiment, a pair of first terminal 12b and second terminal 22b are connected to each other via the wiring component 40, but the number of pairs of first terminals and second terminals to be connected via the wiring component 40 is not limited to one.

[0058] As described above, the resin body 30 in the magnetic detection device 100 according to the second embodiment comprises at least one wiring component 40. The wiring component 40 comprises the first wiring section 41, the second wiring section 42, the connection section 44, and the third wiring section 43. The first wiring section 41 forms a first wiring line 31b among the multiple first wiring lines 31a, 31b, and 31c. The second wiring section 42 forms a second wiring line 32b among the multiple second wiring lines 32a, 32b, and 32c, which is adjacent to the aforementioned first wiring line 31b, viewed in the normal direction of the first wiring line 31b. The connection section 44 is connected to the second wiring section 42 and projects from the resin body main body 30a along the extension direction of the second wiring section 42.The third wiring section 43 connects the first wiring section 41 and the connection section 44.

[0059] In this arrangement, the first terminal 12b of the first magnetic sensor 10 and the second terminal 22b of the second magnetic sensor 20 can be connected to the common terminal section 44. That is, the connection terminal to be connected to the first terminal 12b of the first magnetic sensor 10 and the connection terminal to be connected to the second terminal 22b of the second magnetic sensor 20 can be integrated into one. In this way, the first magnetic sensor 10 and the second magnetic sensor 20 can have a common ground terminal, or the first magnetic sensor 10 and the second magnetic sensor 20 can have a common power supply terminal. Thus, according to the second embodiment, similar effects to those of the first embodiment can be achieved, and in addition, the size and cost of the magnetic sensing device 100 can be reduced. Third embodiment

[0060] A magnetic detection device according to a third embodiment is described. Fig. Figure 8 is a top view illustrating a configuration of a first magnetic sensor of the magnetic detection device according to the third embodiment. Fig. Figure 9 is a top view illustrating a configuration of a second magnetic sensor of the magnetic detection device according to the third embodiment. Components that have the same functions and effects as in the first or second embodiment are identified by the same reference numerals, and their description is omitted.

[0061] In the third embodiment, the order of the connections in the first magnetic sensor 10 is different from the order of the connections in the second magnetic sensor 20. That is, in the third embodiment, the first magnetic sensor 10 and the second magnetic sensor 20 are not common components that have the same configuration.

[0062] As in Fig. As shown in Figure 8, the first magnetic sensor 10 comprises a power supply terminal 15a, a ground terminal 15b, and an output terminal 15c. The power supply terminal 15a, the ground terminal 15b, and the output terminal 15c each correspond to the first terminal of the first magnetic sensor 10. The power supply terminal 15a, the ground terminal 15b, and the output terminal 15c are arranged in the order shown, from left to right, in Fig. 8. The arrangement sequence of the power supply terminal 15a, the grounding terminal 15b and the output terminal 15c of the first magnetic sensor 10 is not based on the one shown in Fig. The arrangement sequence shown in section 8 is limited.

[0063] As in Fig. As shown in Figure 9, the second magnetic sensor 20 comprises a power supply terminal 25a, a grounding terminal 25b, and an output terminal 25c. The power supply terminal 25a, the grounding terminal 25b, and the output terminal 25c each correspond to the second terminal of the second magnetic sensor 20. The power supply terminal 25a, the grounding terminal 25b, and the output terminal 25c are arranged in the order shown, from right to left, in Fig. 9. That is, the arrangement of the power supply terminal 25a, the grounding terminal 25b, and the output terminal 25c in the top view of the second magnetic sensor 20 is the reverse of the arrangement of the power supply terminal 15a, the grounding terminal 15b, and the output terminal 15c in the top view of the first magnetic sensor 10. The arrangement of the power supply terminal 25a, the grounding terminal 25b, and the output terminal 25c in the second magnetic sensor 20 is not based on the one shown in Fig. The arrangement sequence shown is limited to 9.

[0064] Fig. Figure 10 is a top view illustrating the configuration of the magnetic detection device according to the third embodiment. Fig. Figure 10 shows the configuration of the magnetic detection device 100 as seen from the side of the first magnetic sensor 10, along the thickness direction of the magnetic detection device 100. Fig. The representation of the resin body 30 is omitted in 10.

[0065] In the magnetic detection device 100, the first magnetic sensor 10 and the second magnetic sensor 20 are arranged so that they are opposite each other. Accordingly, as shown in Fig. Figure 10 shows that, viewed in the thickness direction of the magnetic detection device 100, the arrangement of the power supply terminal 15a, the grounding terminal 15b, and the output terminal 15c is the same as the arrangement of the power supply terminal 25a, the grounding terminal 25b, and the output terminal 25c. Thus, viewed in the thickness direction of the magnetic detection device 100, the power supply terminal 15a and the power supply terminal 25a are adjacent to each other, and the grounding terminal 15b and the grounding terminal 25b are adjacent to each other.

[0066] Although not shown, in the third embodiment, the resin body 30 is formed by using two wiring components 40 in the second embodiment. Specifically, the resin body 30 is formed by using the wiring component 40 configured to connect the power supply terminal 15a and the power supply terminal 25a, and the wiring component 40 configured to connect the grounding terminal 15b and the grounding terminal 25b. Thus, in the magnetic detection device 100 of the third embodiment, the power supply terminal 15a and the power supply terminal 25a are connected to the connection terminal of one wiring component 40, and the grounding terminal 15b and the grounding terminal 25b are connected to the connection terminal of the other wiring component 40.Accordingly, in the third embodiment, two connection ports can be reduced. This allows the size of the magnetic detection device 100 to be reduced, and the cost of the magnetic detection device 100 can be reduced.

[0067] As described above, in the magnetic detection device 100 according to the third embodiment, the resin body 30 comprises several wiring components 40. The several first connections include at least the power supply connection 15a and the ground connection 15b of the first magnetic sensor 10. The several second connections include at least the power supply connection 25a and the ground connection 25b of the second magnetic sensor 20. Viewed in the normal direction mentioned above, the power supply connection 15a of the first magnetic sensor 10 and the power supply connection 25a of the second magnetic sensor 20 are adjacent to each other. The power supply connection 15a of the first magnetic sensor 10 and the power supply connection 25a of the second magnetic sensor 20 are connected to each other via a wiring component 40 among the several wiring components 40.Viewed in the normal direction mentioned above, the grounding terminal 15b of the first magnetic sensor 10 and the grounding terminal 25b of the second magnetic sensor 20 are adjacent to each other. The grounding terminal 15b of the first magnetic sensor 10 and the grounding terminal 25b of the second magnetic sensor 20 are connected to each other via another wiring component 40 among the multiple wiring components 40.

[0068] According to the third embodiment, similar effects to those of the first embodiment can be achieved, and in addition, two connection ports can be reduced. Thus, the size of the magnetic detection device 100 can be reduced, and the cost of the magnetic detection device 100 can be reduced. Fourth embodiment

[0069] A magnetic detection device according to a fourth embodiment is described. The resin body 30 in the fourth embodiment is formed by the use of two wiring components 40. Fig. Figure 11 is a perspective view illustrating a configuration of the two wiring components enclosed in the resin body of the magnetic sensing device according to the fourth embodiment. As shown in Fig. As shown in Figure 11, a wiring component 40a, which corresponds to a wiring component 40, has a similar configuration to that shown in Figure 11. Fig. 6 and Fig. Wiring component 40 is shown in Figure 7. Wiring component 40a comprises a first wiring section 41a, a second wiring section 42a, a third wiring section 43a, and a terminal section 44a. The first wiring section 41a is connected to the ground terminal of the first magnetic sensor 10. The second wiring section 42a is connected to the ground terminal of the second magnetic sensor 20. The terminal section 44a is connected to the second wiring section 42a and is located on the same plane as the second wiring section 42a. The terminal section 44a serves as a connection terminal for connecting to an external device. The third wiring section 43a extends in a normal direction to the first wiring section 41a and is configured to connect the first wiring section 41a to the second wiring section 42a and the terminal section 44a.This means that the wiring component 40a is set up to electrically connect the grounding terminal of the first magnetic sensor 10 and the grounding terminal of the second magnetic sensor 20.

[0070] A wiring component 40b, corresponding to the other wiring component 40, comprises a first wiring section 41b, a second wiring section 42b, a third wiring section 43b, and a connection section 44b. The first wiring section 41b is connected to the power supply terminal of the first magnetic sensor 10. The connection section 44b is connected to the first wiring section 41b and is located at the same level as the first wiring section 41b. The connection section 44b serves as a connection terminal that is connected to the external device. The second wiring section 42b is connected to the power supply terminal of the second magnetic sensor 20.The third wiring section 43b extends obliquely with respect to the direction of extension of the third wiring section 43a and is configured to connect the first wiring section 41b and the connection section 44b to the second wiring section 42b. That is, the wiring component 40b is configured to electrically connect the power supply terminal of the first magnetic sensor 10 and the power supply terminal of the second magnetic sensor 20.

[0071] In the normal direction of the first wiring section 41a, i.e., in the thickness direction of the magnetic sensing device 100, the first wiring section 41a of the wiring component 40a and the third wiring section 43b of the wiring component 40b intersect three-dimensionally within the resin body 30. That is, the wiring component 40a and the wiring component 40b intersect each other in the thickness direction of the magnetic sensing device 100, but are electrically isolated from each other.

[0072] According to the fourth embodiment, the power supply terminal 15a and the power supply terminal 25a can be connected to each other via the wiring component 40b, even if the power supply terminal 15a and the power supply terminal 25a are not adjacent to each other when viewed in the thickness direction of the magnetic sensing device 100. Furthermore, the grounding terminal 15b and the grounding terminal 25b can be connected to each other via the wiring component 40a, even if the grounding terminal 15b and the grounding terminal 25b are not adjacent to each other when viewed in the thickness direction of the magnetic sensing device 100. Thus, according to the fourth embodiment, regardless of the arrangement order of the terminals for each of the first magnetic sensor 10 and the second magnetic sensor 20, two connection terminals can be reduced.This means that even if the first magnetic sensor 10 and the second magnetic sensor 20 have the same shape as in the first embodiment, two connection terminals can be reduced, and therefore the manufacturing costs of the magnetic sensing device 100 can be further reduced.

[0073] As described above, in the magnetic detection device 100 according to the fourth embodiment, the resin body 30 comprises several wiring components 40. One wiring component 40a among the several wiring components 40 and another wiring component 40b among the several wiring components 40 intersect three-dimensionally within the resin body 30.

[0074] According to the fourth embodiment, similar effects to those of the first embodiment can be achieved, and furthermore, two connection terminals can be reduced, regardless of the terminal arrangement, for each of the first magnetic sensor 10 and the second magnetic sensor 20. Thus, the manufacturing costs of the magnetic detection device 100 can be further reduced. Fifth embodiment

[0075] A magnetic detection device according to a fifth embodiment is described. In this fifth embodiment, a highly sensitive magnetic resistive element, e.g., a giant magnetic resistive element (GMR), is used as a magnetoelectric conversion device to improve the accuracy of the magnetic detection device. To detect the irregularities of the unmagnetized rotating magnetic body with the magnetic sensor to which the magnetic resistive element is attached, a premagnetizing field must be applied to the magnetic resistive element. The magnetic sensor detects the premagnetizing field, which changes according to the irregularity of the rotating magnetic body.

[0076] Fig. Figure 12 is a side view illustrating the configuration of the magnetic detection device according to the fifth embodiment. Fig. Figure 13 is a front view illustrating the configuration of the magnetic detection device according to the fifth embodiment. Fig. Figure 13 shows the configuration of the magnetic detection device 100 as seen from the side of the magnetic rotating body 200. Components having the same functions and effects as those of the first to fourth embodiments are identified by the same reference numerals, and their descriptions are omitted.

[0077] As in Fig. 12 and Fig. As shown in Figure 13, a first sensing element 16 is provided within the first sealing body 11 of the first magnetic sensor 10. A second sensing element 26 is provided inside the second sealing body 21 of the second magnetic sensor 20. Each of the first sensing element 16 and the second sensing element 26 is a magnetic resistance element. A magnet 50 is provided between the first sealing body 11 and the second sealing body 21. The magnet 50 is magnetized along the thickness direction of the magnetic sensing device 100. One magnetic pole face of the magnet 50 faces the first sensing element 16. The other magnetic pole face of the magnet 50 faces the second sensing element 26. A premagnetization field 51 is applied by the magnet 50 to both the first sensing element 16 and the second sensing element 26.

[0078] To improve the detection accuracy of the magnetic detection device 100, it is necessary to apply the premagnetization field 51 with the same magnitude and angle from the magnetic pole faces of the magnet 50 to the first detection element 16 and the second detection element 26. Accordingly, viewed from the side of the rotating magnetic body 200, as shown in Fig. Figure 13 shows the center of the first detection element 16 and the second detection element 26 arranged on a magnetization axis of the magnet 50.

[0079] As described above, in the magnetic detection device 100 according to the fifth embodiment, each of the first detection element 16 and the second detection element 26 is a magnetic resistance element. The magnetic detection device 100 further comprises the magnet 50, which is configured to apply the premagnetization field 51 to the first detection element 16 and the second detection element 26.

[0080] According to the fifth embodiment, similar effects can be achieved as in the first embodiment, and in addition, the detection accuracy of the magnetic detection device 100 can be improved by using the magnetic resistance element.

Claims

[1] Magnetic detection device (100), comprising: a first magnetic sensor (10); a second magnetic sensor (20) arranged so that it is opposite the first magnetic sensor (10); and a resin body (30) which is provided between the first magnetic sensor (10) and the second magnetic sensor (20), the first magnetic sensor (10) comprises: a first sealing body (11) in which a first detection element is sealed; and several first connections (12a, 12b, 12c), each of which projects in one direction from the first sealing body (11) and which are arranged side by side, wherein each of the multiple first connections (12a, 12b, 12c) has a plate shape along an arrangement direction of the multiple first connections (12a, 12b, 12c), the second magnetic sensor (20) comprises: a second sealing body (21) in which a second detection element is sealed; and several second connections (22a, 22b, 22c), each of which projects from the second sealing body (21) in the same direction as a projection direction from each of the several first connections (12a, 12b, 12c) and which are arranged side by side, wherein each of the several second terminals (22a, 22b, 22c) has a plate shape that is parallel to each of the several first terminals (12a, 12b, 12c), wherein the resin body (30) comprises: a resin body main body (30a); several first wiring leads (31a, 31b, 31c) formed on a surface of the resin body main body (30a) on the side of the first magnetic sensor (10); and several second wiring lines (32a, 32b, 32c) formed on a surface of the resin body main body (30a) on the side of the second magnetic sensor (20), wherein each of the several first wiring lines (31a, 31b, 31c) has a plate shape which is parallel to each of the several first terminals (12a, 12b, 12c), wherein each of the several first wiring lines (31a, 31b, 31c) comprises a first overlap section (35) which overlaps with a corresponding one of the several first terminals (12a, 12b, 12c), wherein the first overlap section (35), viewed in a normal direction to each of the several first terminals (12a, 12b, 12c), is arranged at a position offset from all of the several second terminals (22a, 22b, 22c) and the several second wiring leads (32a, 32b, 32c), wherein each of the several first wiring lines (31a, 31b, 31c) is welded to a corresponding one of the several first terminals (12a, 12b, 12c) at the first overlap section (35), wherein each of the several second wiring lines (32a, 32b, 32c) has a plate shape which is parallel to each of the several first terminals (12a, 12b, 12c), wherein each of the several second wiring lines (32a, 32b, 32c) comprises a second overlap section (36) which overlaps with a corresponding one of the several second terminals (22a, 22b, 22c), wherein the second overlap section (36), viewed in the normal direction, is arranged at a position offset from all of the multiple first terminals (12a, 12b, 12c) and the multiple first wiring leads (31a, 31b, 31c), and wherein each of the several second wiring leads (32a, 32b, 32c) is welded to a corresponding one of the several second terminals (22a, 22b, 22c) at the second overlap section (36). [2] Magnetic detection device (100) according to claim 1, wherein several first holes (33a, 33b, 33c) are formed in the surface of the resin body main body (30a) on the side of the first magnetic sensor (10), wherein each of the several first holes (33a, 33b, 33c) extends in the normal direction to reach the second overlap section (36) of a corresponding one of the several second wiring lines (32a, 32b, 32c), wherein several second holes (34a, 34b, 34c) are formed in the surface of the resin body main body (30a) on the side of the second magnetic sensor (20), and wherein each of the several second holes (34a, 34b, 34c) extends in the normal direction to reach the first overlap section (35) of a corresponding one of the several first wiring leads (31a, 31b, 31c). [3] Magnetic detection device (100) according to claim 1 or 2, wherein the first magnetic sensor (10) and the second magnetic sensor (20) have the same shape. [4] Magnetic detection device (100) according to one of claims 1 to 3, wherein the resin body (30) comprises at least one wiring component (40), and comprising at least one wiring component (40): a first wiring section (41) which forms a first wiring line (31b) among the several first wiring lines (31a, 31b, 31c); a second wiring section (42) which forms a second wiring line (32b) among the several second wiring lines (32a, 32b, 32c) which is adjacent in the normal direction to the one first wiring line (31b); a connecting section (44) which is connected to the second wiring section (42) and projects from the resin body main body (30a) along a direction of extension of the second wiring section (42); and a third wiring section (43) which is configured to connect the first wiring section (41) and the connection section (44). [5] Magnetic detection device (100) according to claim 4, wherein at least one wiring component (40) comprises several wiring components (40), wherein the multiple first connections include at least one power supply connection (15a) and one earth connection (15b) of the first magnetic sensor (10), wherein the multiple second connections include at least one power supply connection (25a) and one earth connection (25b) of the second magnetic sensor (20), wherein the power supply connection (15a) of the first magnetic sensor (10) and the power supply connection (25a) of the second magnetic sensor (20) are adjacent to each other in the normal direction, wherein the power supply connection (15a) of the first magnetic sensor (10) and the power supply connection (25a) of the second magnetic sensor (20) are connected to each other via a wiring component (40) among the several wiring components (40), wherein the grounding terminal (15b) of the first magnetic sensor (10) and the grounding terminal (25b) of the second magnetic sensor (20) are adjacent to each other in the normal direction, and wherein the grounding terminal (15b) of the first magnetic sensor (10) and the grounding terminal (25b) of the second magnetic sensor (20) are connected to each other via another wiring component (40) among the multiple wiring components (40). [6] Magnetic detection device (100) according to claim 4, wherein at least one wiring component (40) comprises several wiring components (40), and wherein one wiring component (40a) among the several wiring components (40) and another wiring component (40b) among the several wiring components (40) intersect three-dimensionally within the resin body (30). [7] Magnetic detection device (100) according to any one of claims 1 to 6, wherein the first detection element (16) and the second detection element (26) is a magnetic resistance element, and wherein the magnetic detection device (100) further comprises a magnet (50) which is configured to apply a premagnetization field to the first detection element (16) and the second detection element (26).

Images