In-vehicle electronic equipment

Abstract

This vehicle-mounted electronic apparatus comprises: a connector into which a retainer is inserted; a circuit board on which the connector is mounted; a case accommodating the circuit board and the connector in such a way that an opening portion of the connector into which the retainer is inserted is exposed to the outside; and a drainage mechanism provided so as to face an electricity conducting portion through which electricity flows, for discharging water to the outside of the case.

Description

[Technical Field]

[0001] The present invention relates to an in-vehicle electronic device. [Background technology]

[0002] JP2014-003206A discloses an in-vehicle electronic device to be placed in the engine compartment of a vehicle, which includes a circuit board on which input / output connectors are provided, a base (lower case) to which the circuit board is fixed, a cover (upper case) that is fixed to the base and covers the circuit board so that the connector connection portions are exposed to the outside, and a waterproof seal that fixes and seals the base and cover. Summary of the Invention

[0003] Incidentally, when in-vehicle electronic devices are installed outside the vehicle cabin, such as in the engine compartment, they are equipped with a structure that includes a waterproof seal to prevent water from entering the interior, such as the in-vehicle electronic device described in JP2014-003206A, but when they are installed inside the vehicle cabin, they often do not employ a structure that prevents water from entering the interior.

[0004] However, even when an in-vehicle electronic device is installed inside the vehicle, for example, if the vehicle is submerged in water, water may seep into the in-vehicle electronic device. If the water that has seeped into the in-vehicle electronic device remains inside the vehicle after the vehicle recovers from the submerged state, leakage current may flow through paths that should not normally flow.

[0005] Therefore, even when an in-vehicle electronic device is installed inside a vehicle, a structure to prevent water from entering the interior is sometimes adopted, but such a structure requires not only a waterproof seal on the housing to prevent water from entering the housing, but also a rubber seal or the like to prevent water from entering through the connector pins due to capillary action. Therefore, there is a risk that the in-vehicle electronic device will become large, especially when there are a large number of connector pins.

[0006] The present invention has been made in view of the above technical problems, and has an object to suppress the occurrence of leakage current and to prevent an increase in the size of vehicle electronic devices.

[0007] According to one aspect of the present invention, an in-vehicle electronic device includes a connector into which a retainer is inserted, a circuit board on which the connector is mounted, a case that houses the circuit board and the connector such that an opening of the connector into which the retainer is inserted is exposed to the outside, and a drainage mechanism that is provided facing an electric current-carrying part through which electricity flows and that drains water to the outside of the case. The drainage mechanism has a first drainage hole that is provided so as to penetrate the bottom surface of the connector in the vertical direction and that drains water that has entered the connector to the outside, and the retainer has a main body that is inserted into the connector, a first terminal that is disposed in the main body and connected to a harness, and a crimping portion that fixes in contact with a second terminal that is connected to a connector pin in the connector when inserted into the connector, and the first drainage hole is provided so as to open at least either a first position that communicates with a mating surface between the tip end of the retainer and the inner surface of the connector, or a second position that communicates with an opposing surface between the main body and the crimping portion. . [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a perspective view of an in-vehicle electronic device according to an embodiment of the present invention. [Figure 2] FIG. 2 is an exploded perspective view of the in-vehicle electronic device. [Figure 3] FIG. 3 is a plan view showing the in-vehicle electronic device with the upper case removed. [Figure 4] FIG. 4 is an enlarged perspective view showing the structure in the vicinity of the connector of the in-vehicle electronic device. [Figure 5] FIG. 5 is a perspective view of the structure in the vicinity of the connector shown in FIG. 4, seen obliquely from below. [Figure 6] FIG. 6 is a perspective view of a lower case of the in-vehicle electronic device. [Figure 7] FIG. 7 is a cross-sectional view taken along line VII-VII in FIG. [Figure 8] FIG. 8 is a cross-sectional view showing a state in which the retainer is inserted into the connector. [Figure 9] FIG. 9 is a perspective view of a lower case of an in-vehicle electronic device according to a modified example of the embodiment of the present invention. [Figure 10] FIG. 10 is a view showing the same cross section as FIG. 7 of an in-vehicle electronic device according to a modified example. [Figure 11] FIG. 11 is a perspective view showing a first modified example of a drainage portion provided in the lower case. [Figure 12] FIG. 12 is a perspective view showing a second modified example of the drainage portion provided in the lower case. [Figure 13] FIG. 13 is a perspective view showing a third modified example of the drainage portion provided in the lower case. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

[0010] First, with reference to FIGS. 1 to 3, the overall configuration of an in-vehicle electronic device (hereinafter simply referred to as "electronic device") 100 according to an embodiment of the present invention will be described.

[0011] Fig. 1 is a perspective view of electronic device 100. Fig. 2 is an exploded perspective view of electronic device 100. Fig. 3 is a plan view showing a state in which upper case 11 of electronic device 100 is removed.

[0012] The electronic device 100 is mounted on a vehicle and placed in a vehicle compartment (not shown). The electronic device 100 is, for example, a battery management system (BMS) that controls a drive battery of an electric vehicle (EV), a hybrid vehicle (HEV), or the like.

[0013] As shown in FIGS. 1 and 2, the electronic device 100 includes a case 10, a circuit board 20, a connector 30, and a drainage mechanism 50 (see FIG. 2).

[0014] The case 10 accommodates the circuit board 20 and the connector 30. The case 10 has an upper case 11 and a lower case 12.

[0015] The upper case 11 is located above the circuit board 20. The upper case 11 is formed in a substantially box shape. The upper case 11 covers the upper surface of the circuit board 20. The upper case 11 is formed with a plurality of (six in this example) notches 11a for exposing the opening 32 of the connector 30 to the outside of the case 10.

[0016] The lower case 12 is located below the circuit board 20. The lower case 12 is formed in a substantially flat plate shape. The lower case 12 covers the lower surface of the circuit board 20. The lower case 12 is fastened to the upper case 11 with bolts, with the circuit board 20 sandwiched between them.

[0017] 2, the lower case 12 has a flat plate portion 12a and a plurality of (six in this example) bosses 12b that support the circuit board 20. The bosses 12b are formed in a substantially cylindrical shape, and have female threads (not shown) formed on the inner periphery for bolt fastening. The lower case 12 supports the circuit board 20 so that it is positioned on the upper surface of the bosses 12b. A drainage portion 54 of the drainage mechanism 50, which will be described later, is provided on the flat plate portion 12a.

[0018] The circuit board 20 is formed in a substantially flat plate shape. A circuit pattern (not shown) is formed on the circuit board 20, and various electronic components (not shown) required for the electronic device 100 to execute control are mounted on the circuit board 20. The circuit board 20 is supported on the boss 12b of the lower case 12, and is fastened and attached to the boss 12b with bolts (not shown). As a result, the circuit board 20 is supported on the lower case 12 with a gap in the height direction between the circuit board 20 and the flat plate portion 12a.

[0019] As shown in Fig. 3, the connector 30 is mounted on the upper surface of the circuit board 20. A plurality of connectors 30 (six in this example) are provided along the outer periphery of the circuit board 20. A retainer 40 (see Fig. 8), which will be described later, is inserted into each connector 30. The connectors 30 are used to electrically connect the circuit board 20 to other external electronic devices (not shown).

[0020] Next, the configurations of the connector 30, the retainer 40, and the drainage mechanism 50 will be described with reference to FIGS.

[0021] FIG. 4 is an enlarged perspective view showing the structure in the vicinity of the connector 30 of the electronic device 100. FIG. 5 is a perspective view of the structure in the vicinity of the connector 30 shown in FIG. 4, viewed obliquely from below. FIG. 6 is a perspective view of the lower case 12 of the electronic device 100. FIG. 7 is a cross-sectional view taken along line VII-VII in FIG. 3. FIG. 8 is a cross-sectional view showing a state in which the retainer 40 is inserted into the connector 30. FIG. 9 is a perspective view of the lower case 12 in the electronic device 100 according to a modified example. FIG. 10 is a view showing the same cross-section as FIG. 7 of the electronic device 100 according to a modified example.

[0022] As shown in FIGS. 4 and 5, the connector 30 includes a connector body 31 and a plurality of connector pins 33.

[0023] The connector body 31 is made of a resin material and has a substantially rectangular parallelepiped shape. The connector body 31 has an opening 32.

[0024] The opening 32 has a substantially rectangular shape and is exposed to the outside of the case 10. A retainer 40 (see FIG. 8) is inserted into the opening 32.

[0025] As shown in Fig. 4, the connector pins 33 protrude toward the opening 32 within the connector body 31. The connector pins 33 are arranged in a matrix of n rows and m columns (n ​​and m are positive integers). As shown in Fig. 7, one end 33a of the connector pin 33 is electrically connected to a circuit pattern formed on the upper surface of the circuit board 20. As shown in Fig. 8, the other end 33b of the connector pin 33 is electrically connected to another external electronic device via the retainer 40 when the retainer 40 is inserted into the connector 30.

[0026] As shown in FIG. 8, the retainer 40 has a retainer body 41 as a main body, a first terminal portion 42, a second terminal portion 43, and a crimping portion 44.

[0027] The retainer body 41 is formed in a generally rectangular parallelepiped shape that is slightly smaller than the connector body 31. The retainer body 41 is inserted into the connector 30. The retainer body 41 has a recess 41a, into which the crimping portion 44 is inserted, at approximately the center in the longitudinal direction.

[0028] The first terminal portion 42 is disposed inside the retainer body 41. The first terminal portion 42 is electrically connected to the harness 45.

[0029] The second terminal portion 43 is electrically connected to the connector pin 33 in the connector 30 when the retainer 40 is inserted into the connector 30 (the state shown in FIG. 8).

[0030] When attached to the recess 41a of the retainer body 41 (as shown in FIG. 8), the crimping portion 44 presses the first terminal portion 42 against the second terminal portion 43. That is, the crimping portion 44 fixes the first terminal portion 42 and the second terminal portion 43 in contact with each other.

[0031] Here, for example, if a vehicle is submerged in water, water may enter the interior of electronic device 100. If the water that has entered electronic device 100 remains inside when the vehicle recovers from the submerged state, there is a risk that a leakage current will flow through a path that should not normally flow. Therefore, electronic device 100 is provided with drainage mechanism 50 to prevent the water that has entered from remaining inside when the vehicle recovers from the submerged state.

[0032] 7, the drainage mechanism 50 is provided facing an electrical conducting part through which electricity flows, and is configured to drain water to the outside of the case 10. In this case, the connector pin 33 of the connector 30 and the first terminal portion 42 of the retainer 40 correspond to the electrical conducting part. The drainage mechanism 50 has a first drainage hole 51, a second drainage hole 52, a third drainage hole 53, and a drainage portion 54.

[0033] As shown in FIG. 4, the first drainage hole 51 is provided in the connector body 31 of the connector 30. The first drainage hole 51 is formed in an elongated hole shape along the direction in which the connector pins 33 are arranged. The first drainage hole 51 is divided into multiple holes (three in this case) and formed so as to be aligned in the longitudinal direction within the connector 30. As shown in FIG. 7, the first drainage hole 51 is provided so as to penetrate the bottom surface of the connector 30 from top to bottom. The first drainage hole 51 drains water that has entered the connector 30 to the outside by gravity.

[0034] In this way, first drainage holes 51 are provided that penetrate the bottom surface of connector 30 from top to bottom, so that water that has entered connector 30 can be guided by gravity to the outside of connector 30 and drained. Therefore, when the vehicle recovers from a submerged state, the water that has entered can be prevented from accumulating inside connector 30.

[0035] 8, the first drainage hole 51 is provided so as to open at a first position 58 that communicates with the mating surface between the tip end of the retainer 40 and the inner surface of the connector 30, and at a second position 59 that communicates with the opposing surface between the retainer body 41 and the crimped portion 44. Note that the first drainage hole 51 may be provided so as to open only at the first position 58 or the second position 59. In other words, the first drainage hole 51 is provided so as to open at least either the first position 58 or the second position 59.

[0036] In this way, first drain hole 51 opens at least at first position 58 or second position 59, where water is less likely to be discharged to the outside if it has entered connector 30, and therefore water that accumulates around connector pins 33 and first terminal portions 42, through which electricity flows inside electronic device 100, can be guided and discharged to the outside. Therefore, when the vehicle recovers from a submerged state, it is possible to prevent the water that has entered from accumulating near connector pins 33 and first terminal portions 42.

[0037] As shown in FIG. 5, the second drainage hole 52 is provided in the circuit board 20. The second drainage hole 52 is formed in the same elongated hole shape as the first drainage hole 51. The second drainage hole 52 is formed in approximately the same shape as the first drainage hole 51. As shown in FIGS. 7 and 8, the second drainage hole 52 is provided at a position that communicates with the first drainage hole 51 of the connector 30 in the vertical direction. The second drainage hole 52 is provided so as to penetrate the circuit board 20 in the vertical direction. The second drainage hole 52 uses gravity to discharge water that has been discharged from the connector 30 via the first drainage hole 51 to the outside.

[0038] In this way, since second drainage holes 52 are provided that penetrate circuit board 20 vertically, water that has been discharged from inside connector 30 through first drainage holes 51 can be guided by gravity downwards on circuit board 20 and discharged. Therefore, when the vehicle recovers from a submerged state, it is possible to prevent the infiltrated water from accumulating on circuit board 20.

[0039] 6 and 7, the drainage portion 54 is formed in the lower case 12. 1 drainage hole 51 and 2 drainage hole 52 The drain portion 54 guides water discharged from the drain to the outside of the case 10. The drain portion 54 is an inclined surface that opens to the side of the case 10. The drain portion 54 is inclined so that it gradually moves away from the circuit board 20 toward the side of the case 10, that is, so that the opening area gradually increases toward the side of the case 10.

[0040] In this way, since the drainage section 54 is provided in the lower case 12, water that has been guided below the circuit board 20 through the first drainage hole 51 and the second drainage hole 52 can be guided by gravity to the outside of the case 10 and discharged. Therefore, when the vehicle recovers from a submerged state, the water that has entered can be prevented from accumulating within the case 10.

[0041] As described above, electronic device 100 is provided with drainage mechanism 50, which is disposed so as to face connector pins 33 and first terminal portions 42 of circuit board 20 through which electricity flows, for draining water to the outside of case 10. Therefore, even if water seeps into case 10, water that has accumulated in the current-carrying portions (connector pins 33 and first terminal portions 42) of circuit board 20 through which electricity flows is drained to the outside of case 10 through drainage mechanism 50. Therefore, it is possible to suppress the occurrence of leakage current and prevent electronic device 100 from becoming larger.

[0042] Furthermore, when the vehicle recovers from the submerged state and the worker removes the retainer 40 from the connector 30 to disassemble it, the water that had entered the connector 30 has already been guided and drained out of the connector 30. Therefore, the worker can perform the work safely.

[0043] As in the modified examples shown in FIGS. 9 and 10, the drainage section 54 may have a plurality of slits 55 that are provided so as to open intermittently.

[0044] The slits 55 are formed between a plurality of claws 56 that are intermittently folded back at the open end of the drainage section 54. By forming the drainage section 54 using a plurality of slits 55 in this way, the opening area of ​​the drainage section 54 is reduced, preventing the entry of an operator's fingers or the like from the outside. This prevents the operator from touching the electrically conductive parts inside the case 10.

[0045] As shown in FIG. 3, the third drainage hole 53 is provided between each connection portion (the connection portion between the end portion 33a and the circuit pattern of the circuit board 20) where the connector pins 33 of a pair of adjacent connectors 30 are electrically connected to the circuit board 20. Here, one end portion 33a of the connector pin 33 (see FIGS. 7 and 8) corresponds to the conductive portion. The third drainage hole 53 is provided so as to penetrate the circuit board 20 from top to bottom. The third drainage hole 53 drains water that has accumulated on the circuit board 20 to the outside by gravity.

[0046] In this way, third drainage holes 53 are provided between the connecting portions so as to penetrate circuit board 20 in the vertical direction, and water that accumulates on circuit board 20 can be guided by gravity downward through third drainage holes 53 and discharged. Therefore, when the vehicle recovers from a submerged state, water that has entered can be prevented from accumulating on circuit board 20.

[0047] Next, first to third modified examples of the drainage section 54 will be described with reference to FIGS.

[0048] Fig. 11 is a perspective view showing a first modified example of the drainage section 54 provided in the lower case 12. Fig. 12 is a perspective view showing a second modified example of the drainage section 54 provided in the lower case 12. Fig. 13 is a perspective view showing a third modified example of the drainage section 54 provided in the lower case 12.

[0049] 11, the drainage portion 54 may be an inclined surface formed on the inside of the outer peripheral edge and opening downwardly to the flat plate portion 12a, rather than opening to the side end surface of the lower case 12. In this case as well, water guided downwardly to the circuit board 20 through the first drainage hole 51 and the second drainage hole 52 can be similarly guided by gravity to the outside of the case 10 and discharged.

[0050] 12, the drainage portion 54 may be formed by a lower surface 54a that protrudes downward from the flat plate portion 12a and an elongated hole-shaped opening 54b that opens into the lower surface 54a. In this case, water that is guided below the circuit board 20 through the first drainage hole 51 and the second drainage hole 52 is guided to the lower surface 54a by gravity. Then, the water that has collected on the lower surface 54a can be guided to the outside of the case 10 through the opening 54b by gravity and discharged.

[0051] 13, the drainage portion 54 may be a plurality of slits 55 formed by forming a plurality of tabs 56 at the end of the flat plate portion 12a of the lower case 12. In this case, the drainage portion 54 is not inclined with respect to the flat plate portion 12a, but the electronic device 100 itself may be inclined depending on the position where the electronic device 100 is placed. Therefore, by simply providing the tabs 56 and the slits 55 without forming an inclined surface, the inclination of the electronic device 100 itself can be used to guide water that has been guided below the circuit board 20 through the first drainage hole 51 and the second drainage hole 52 to the outside of the case 10 by gravity and discharged.

[0052] According to the above embodiment, the following effects are achieved.

[0053] The electronic device 100 comprises a connector 30 into which a retainer 40 is inserted, a circuit board 20 on which the connector 30 is mounted, a case 10 that houses the circuit board 20 and the connector 30 so that an opening 32 into which the retainer 40 of the connector 30 is inserted is exposed to the outside, and a drainage mechanism 50 that is arranged facing an electrically conductive part through which electricity flows and that drains water to the outside of the case 10.

[0054] In this configuration, electronic device 100 is provided with drainage mechanism 50, which is disposed facing the current-carrying portion of circuit board 20 through which electricity flows, for draining water to the outside of case 10. Therefore, even if water seeps into case 10, the water in the current-carrying portion of circuit board 20 through which electricity flows is drained to the outside of case 10 through drainage mechanism 50. This makes it possible to suppress the occurrence of leakage current and to prevent electronic device 100 from becoming larger.

[0055] The drainage mechanism 50 is provided so as to penetrate the lower surface of the connector 30 in the vertical direction, and has a first drainage hole 51 for discharging water that has entered the connector 30 to the outside.

[0056] According to this configuration, first drainage holes 51 are provided that penetrate the bottom surface of connector 30 from top to bottom, so that water that has entered connector 30 can be guided by gravity to the outside of connector 30 and drained. Therefore, when the vehicle recovers from a submerged state, the water that has entered can be prevented from accumulating inside connector 30.

[0057] Furthermore, when the vehicle recovers from the submerged state and the worker removes the retainer 40 from the connector 30 to disassemble it, the water that had entered the connector 30 has already been guided and drained out of the connector 30. Therefore, the worker can perform the work safely.

[0058] In addition, the connector 30 is mounted on the upper surface of the circuit board 20, and the drainage mechanism 50 has a second drainage hole 52 that is arranged to penetrate the circuit board 20 in the vertical direction at a position that is in vertical communication with the first drainage hole 51.

[0059] According to this configuration, second drainage holes 52 are provided that penetrate circuit board 20 vertically, so that water that has been discharged from inside connector 30 through first drainage holes 51 can be guided by gravity downwards on circuit board 20 and discharged. Therefore, when the vehicle recovers from a submerged state, it is possible to prevent the infiltrated water from accumulating on circuit board 20.

[0060] The case 10 also has a lower case 12 located below the circuit board 20, and the drainage mechanism 50 has a drainage section 54 formed in the lower case 12 for directing water discharged from the second drainage hole 52 to the outside of the case 10.

[0061] According to this configuration, the drainage section 54 is provided in the lower case 12, so that water guided below the circuit board 20 through the first drainage hole 51 and the second drainage hole 52 can be guided by gravity to the outside of the case 10 and discharged. Therefore, when the vehicle recovers from a submerged state, the water that has entered can be prevented from accumulating within the case 10.

[0062] The drainage section 54 also has a plurality of slits 55 that are provided so as to open intermittently.

[0063] According to this configuration, the drainage section 54 has a plurality of slits 55, and the opening area of ​​the drainage section 54 is small, so that an operator's fingers or the like can be prevented from entering from the outside. Therefore, an operator can be prevented from touching the electrically conducting parts inside the case 10.

[0064] The retainer 40 also has a retainer body 41 inserted into the connector 30, a first terminal portion 42 disposed within the retainer body 41 and connected to the harness 45, and a crimped portion 44 that fixes in contact with the second terminal portion 43 that connects to the connector pin 33 in the connector 30 when inserted into the connector 30. The first drainage hole 51 is provided so as to open to at least one of a first position 58 that communicates with the mating surface between the tip end of the retainer 40 and the inner surface of the connector 30, and a second position 59 that communicates with the opposing surface of the retainer body 41 and the crimped portion 44.

[0065] According to this configuration, first drain hole 51 opens at least at first position 58 or second position 59, where water is less likely to be discharged to the outside if it has entered connector 30, and therefore water remaining in an electrically conducting part through which electricity flows in electronic device 100 can be guided and discharged to the outside. Therefore, when the vehicle recovers from a submerged state, it is possible to prevent the water that has entered from remaining near the electrically conducting part.

[0066] In addition, multiple connectors 30 are provided along the outer peripheral edge of the circuit board 20, and the drainage mechanism 50 has third drainage holes 53 that are provided to penetrate the circuit board 20 vertically between each connection portion where the connector pins 33 of adjacent pairs of connectors 30 are electrically connected to the circuit board 20.

[0067] According to this configuration, third drainage holes 53 are provided between the connecting portions, penetrating circuit board 20 from top to bottom, so that water accumulating on circuit board 20 can be guided by gravity downward through third drainage holes 53 and discharged. Therefore, when the vehicle recovers from a submerged state, water that has entered can be prevented from accumulating on circuit board 20.

[0068] The present invention is not limited to the above-described embodiment, and it goes without saying that various modifications can be made within the scope of the technical idea described in the claims.

[0069] For example, in the above embodiment, the electronic device 100 is a battery management system. However, the electronic device 100 may be any electronic device that is mounted on a vehicle.

[0070] This application claims priority based on Japanese Patent Application No. 2022-167691, filed with the Japan Patent Office on October 19, 2022, the entire contents of which are incorporated herein by reference.

Claims

1. An in-vehicle electronic device, a connector into which the retainer is inserted; a circuit board on which the connector is mounted; a case that houses the circuit board and the connector so that an opening into which the retainer of the connector is inserted is exposed to the outside; a drainage mechanism provided facing an electric current-carrying part for discharging water to the outside of the case; Equipped with the drainage mechanism has a first drainage hole provided to vertically penetrate a lower surface of the connector and to discharge water that has entered the connector to the outside; The retainer is a main body portion that is inserted into the connector; a crimping portion that fixes, in a state of contact, a first terminal portion that is disposed within the main body and connected to a harness and a second terminal portion that is connected to a connector pin in the connector when inserted into the connector; and The first drainage hole is provided to open to at least one of a first position communicating with a mating surface between the tip end portion of the retainer and the inner surface of the connector, and a second position communicating with an opposing surface between the main body portion and the crimping portion. Automotive electronic equipment.

2. 2. The in-vehicle electronic device according to claim 1, the connector is mounted on an upper surface of the circuit board; the drainage mechanism has a second drainage hole provided so as to penetrate the circuit board in the vertical direction at a position communicating with the first drainage hole in the vertical direction; Automotive electronic equipment.

3. 3. The in-vehicle electronic device according to claim 2, the case has a lower case located below the circuit board, The drainage mechanism has a drainage portion formed in the lower case for guiding water discharged from the second drainage hole to the outside of the case. Automotive electronic equipment.

4. The in-vehicle electronic device according to claim 3, The drainage portion has a plurality of slit portions that are provided so as to open intermittently. Automotive electronic equipment.

5. 5. The in-vehicle electronic device according to claim 1, a plurality of the connectors are provided along the outer periphery of the circuit board; the drainage mechanism has a third drainage hole provided to penetrate the circuit board in the vertical direction between each connection portion where the connector pins of the pair of adjacent connectors are electrically connected to the circuit board; Automotive electronic equipment.

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