connector

Abstract

This provides a connector that improves the stability of electrical connections on a circuit board with mounted terminals. [Solution] The connector 1 comprises a substrate 20 on which terminals 10 are mounted, a housing 30, and a cover 40 which forms an internal space S for housing the substrate 20 with the housing 30. The housing 30 has a boss 36 that protrudes in the direction opposite to the assembly direction of the cover 40. The substrate 20 has a through hole 20b through which a part of the boss 36 passes. The cover 40 has a top plate portion 41 that is spaced apart from the substrate 20 and has a housing hole portion 41c for housing the tip portion 36c of the boss 36. The boss 36 has a substrate contact surface 36e that contacts the surface 21 of the substrate 20 in the direction opposite to the assembly direction at the position where the substrate 20 is positioned relative to the housing 30, and a cover contact surface 36f that contacts the inner surface 41a of the top plate portion 41 in the direction opposite to the assembly direction at the position where the cover 40 is assembled relative to the housing 30.

Description

Technical Field

[0006]

[0001] The present invention relates to a connector.

Background Art

[0002] Conventionally, for example, there is a connector provided with a cover that covers a part of an internal space that houses a part of a terminal or a substrate on which the terminal is mounted in order to prevent foreign matter from mixing in. Patent Document 1 discloses a technique related to a dip connector that is removably assembled to a housing provided with a fitting recess and includes a cover that covers the opening of the fitting recess.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the connector disclosed in Patent Document 1, when the cover is assembled to the housing, if an external force is unintentionally applied to the arm, depending on the degree of the external force, the cover may be deformed. Such deformation of the cover may cause damage to the terminal due to contact between the terminal exposed in the internal space and the cover, and as a result, may hinder normal electrical connection.

[0005] Further, in the connector disclosed in Patent Document 1, only a part of the terminal is housed in the fitting recess so as to be exposed. On the other hand, there may be a connector that covers a part of the internal space that houses not only a part of the terminal but also the substrate on which the terminal is mounted with a cover. In such a connector, when the cover is not assembled to the housing, if the substrate is unintentionally pushed into the housing side, it may cause poor contact at the joint between the terminal and the substrate, and as a result, may hinder normal electrical connection.

[0006] This invention has been made in view of the problems of the prior art. The object of this invention is to provide a connector that improves the stability of electrical connections on a substrate on which terminals are mounted. [Means for solving the problem]

[0007] A connector according to an aspect of the present invention comprises a substrate on which terminals are mounted, a housing that supports the terminals with the substrate exposed, and a cover assembled to the housing and forming an internal space for housing the substrate, wherein the housing has a boss protruding in the direction opposite to the assembly direction of the cover, the substrate has a through hole through which a part of the boss penetrates, the cover has a top plate portion that faces the substrate at a distance from it and has a housing hole portion for housing the tip of the boss, and the boss has a substrate contact surface that contacts the surface of the substrate in the direction opposite to the assembly direction at the position where the substrate is positioned relative to the housing, and a cover contact surface that contacts the inner surface of the top plate portion in the direction opposite to the assembly direction at the position where the cover is assembled relative to the housing. [Effects of the Invention]

[0008] According to the present invention, it is possible to provide a connector that improves the stability of electrical connections on a substrate on which terminals are mounted. [Brief explanation of the drawing]

[0009] [Figure 1] This is a perspective view of a connector according to one embodiment. [Figure 2] This is an exploded perspective view of a connector according to one embodiment. [Figure 3] This is a perspective view of the connector just before the cover is installed. [Figure 4A] This is a cross-sectional view of the connector corresponding to the IVA-IVA section in Figure 1. [Figure 4B] This is a magnified view of a portion of the connector corresponding to the IVB section in Figure 4A. [Modes for carrying out the invention]

[0010] A connector according to one embodiment will be described in detail below with reference to the drawings. Note that the dimensional ratios in the drawings are exaggerated for illustrative purposes and may differ from the actual ratios.

[0011] Figure 1 is a perspective view of connector 1 according to one embodiment. Figure 2 is an exploded perspective view of connector 1. Hereinafter, connector 1 will be described assuming that it is connected to a mating connector (not shown) which has a mating housing that supports or accommodates a plurality of mating terminals. Figure 3 is a perspective view of connector 1 just before the cover 40 is assembled. In Figure 3, the circuit board 20 on which the plurality of terminals 10 are mounted is assembled to the housing 30 with its back surface 22 visible.

[0012] Connector 1 comprises a plurality of terminals 10, a circuit board 20, a housing 30, and a cover 40. Hereinafter, the direction in which the cover 40 is assembled to the housing 30 (hereinafter referred to as the "assembly direction") corresponds to the Z direction in each figure. Furthermore, the plane perpendicular to the assembly direction is defined as the XY plane. The X direction and the Y direction are mutually orthogonal.

[0013] Each of the multiple terminals 10 is a metal terminal fitting manufactured, for example, by machining a sheet metal material having a certain thickness. In this embodiment, all terminals 10 are rod-shaped male terminals. One end of terminal 10 is a connecting portion 10a for connecting to a mating terminal. The other end of terminal 10 is a joining portion 10b that is joined to the substrate 20. The multiple terminals 10 may be distributed in such a way that their specific shape or number of poles differs for each of the multiple mating terminal housing portions 31a provided in the housing 30.

[0014] The substrate 20 mounts a plurality of terminals 10. In this embodiment, the substrate 20 is a flat plate member including a front surface 21 and a back surface 22 (see Figure 4A) as main planes parallel to the virtual XY plane. The front surface 21 is the side on which the plurality of terminals 10 are mounted, that is, the surface facing the main body portion 31 of the housing 30. The back surface 22 is the surface facing the top plate portion 41 of the cover 40 when the cover 40 is assembled to the housing 30. In this embodiment, the planar shape of the substrate 20, that is, the shape of the front surface 21 and the back surface 22, is, for example, a rectangle with the longer side in the direction along the X direction and the shorter side in the direction along the Y direction.

[0015] Furthermore, the substrate 20 has a plurality of holes 20a and at least one through hole 20b. The plurality of holes 20a are used for mounting a plurality of terminals 10, and a joint portion 10b is passed through from the front surface 21 to the back surface 22 for each terminal 10. The joint portion 10b inserted into the hole 20a is joined to the substrate 20 by soldering or the like.

[0016] The through-hole portion 20b penetrates a part of the boss 36. In other words, the number of through-hole portions 20b installed on the substrate 20 is equal to or greater than the number of bosses 36 installed on the housing 30. In this embodiment, since there are two bosses 36, there are two through-hole portions 20b to match the installation position and number of bosses 36. In addition, in this embodiment, the opening shape of the through-hole portion 20b is circular to match the cross-sectional shape of the boss 36.

[0017] The housing 30 is made of synthetic resin and supports the terminals 10 with the substrate 20 exposed, and connects to the mating housing. In this embodiment, the direction in which the housing 30 connects to the mating housing is the Z direction, the same as the assembly direction. Hereinafter, the Z direction may be referred to as the front-rear direction, with the downstream side in the Z direction being referred to as "front" and the upstream side in the Z direction being referred to as "back". The housing 30 integrally includes a main body portion 31, a flange portion 32, a plurality of assembly wall portions 33, a plurality of engaging protrusions 34, a plurality of guide ribs 35, and at least one boss 36.

[0018] The main body portion 31 is a block portion that fits at least a part thereof into the mating housing. In the present embodiment, the main body portion 31 has a rectangular cross-section parallel to the virtual XY plane according to the planar shape of the substrate 20, and is in the shape of a rectangular parallelepiped with its length direction along the Z direction. The main body portion 31 supports a plurality of terminals 10 in a posture along the Z direction at a part on the rear side, for example, by integral molding or press-fitting.

[0019] Further, the main body portion 31 has a plurality of mating terminal accommodating portions 31a. Each mating terminal accommodating portion 31a has an opening that is open on the front surface 31b of the main body portion 31, and exposes at least one connection portion 10a of the plurality of terminals 10 inside. For example, when the entire main body portion 31 is fitted into one female mating housing, each mating terminal accommodating portion 31a accommodates a corresponding mating terminal among the plurality of mating terminals provided in the mating housing. Or, when there are a plurality of mating connectors corresponding to each mating terminal accommodating portion 31a, a mating housing for each mating connector is fitted into each mating terminal accommodating portion 31a. And in any of these cases, when the mating housing is fitted to the main body portion 31, a corresponding mating terminal is connected to each terminal 10.

[0020] Note that the number of installations of the mating terminal accommodating portions 31a or the opening shape, etc. for each mating terminal accommodating portion 31a may be appropriately set based on the specific shape or number of poles, etc. of the terminals 10 to be exposed inside. In the present embodiment, as an example, the main body portion 31 is provided with a total of six mating terminal accommodating portions 31a that are stacked in two stages along the Y direction and arranged in parallel three by three for each stage along the X direction.

[0021] The plurality of terminals 10 supported by the main body portion 31 are exposed outward from the side of the rear surface 31c (see FIG. 4A) of the main body portion 31. In the present embodiment, since all the joint portions 10b of each terminal 10 are exposed, the substrate 20 joining each joint portion 10b is maintained in a state separated from the rear surface 31c of the main body portion 31. Here, the fact that the terminal 10 is exposed outward from the rear surface 31c means that it is exposed to the outside at the stage when the cover 40 is not assembled to the housing 30, and means that it is exposed to the internal space S (see FIG. 4A) at the stage after the cover 40 is assembled.

[0022] The flange portion 32 is provided on the rear side of the main body portion 31 and faces the cylindrical portion 42 of the cover 40 assembled to the housing 30 in the direction opposite to the Z direction. The flange portion 32, for example, when the cover 40 is assembled to the housing 30, prevents the cover 40 from falling off or being damaged due to an external force being applied to the edge portion 42c of the cylindrical portion 42.

[0023] The plurality of mounting wall portions 33 are respectively provided on the rear side of the flange portion 32 so as to project in the direction opposite to the Z direction, which is the mounting direction, and are used for mounting the housing 30 and the cover 40. At least a part of the mounting wall portion 33 is a flat plate portion having an inner surface 33a and an outer surface 33b that are in a front-back relationship with each other. A part of the inner surface 33a faces a part of the side edge portion of the substrate 20. The outer surface 33b faces in proximity to any one of the plurality of locking pieces 43 provided on the cover 40 when the cover 40 is assembled to the housing 30. Also, the leading edge 33c of each mounting wall portion 33 contacts or faces in proximity to the inner surface 41a of the top plate portion 41 of the cover 40 in the direction opposite to the Z direction, which is the mounting direction, when the cover 40 is assembled to the housing 30.

[0024] In the present embodiment, as an example, there are a pair of mounting wall portions 33 that face each other in the X direction orthogonal to the Z direction, which is the mounting direction. In this case, the inner surface 33a of one mounting wall portion 33 and the inner surface 33a of the other mounting wall portion 33 face each other in the X direction.

[0025] Multiple engaging protrusions 34 are provided on the outer surface 33b of each assembly wall portion 33, and when the cover 40 is assembled to the housing 30, they engage with the locking holes 43a of any of the locking pieces 43 provided on the cover 40. In other words, the multiple engaging protrusions 34, together with the locking pieces 43, constitute a locking mechanism for maintaining the assembled state of the cover 40 to the housing 30. In this embodiment, since there is a pair of assembly wall portions 33, there is also a pair of engaging protrusions 34. In this case, the pair of engaging protrusions 34 protrude away from each other along the X direction.

[0026] Multiple guide ribs 35 are provided on the outer surface 33b of each assembly wall portion 33, and guide the locking piece 43 so that the locking hole portion 43a faces the engaging projection 34 when the cover 40 is assembled to the housing 30. In this embodiment, there is one pair of guide ribs 35 for each assembly wall portion 33. In one assembly wall portion 33, the pair of guide ribs 35 are arranged parallel to each other so as to extend along the Z direction, and when the cover 40 is assembled to the housing 30, they fit into a pair of grooves facing the sides of the locking piece 43 in the cover 40. In other words, on the outer surface 33b of the assembly wall portion 33, the engaging projection 34 is positioned between the pair of guide ribs 35, but not in contact with the guide ribs 35.

[0027] Figure 4A is a cross-sectional view of connector 1 corresponding to the IVA-IVA section in Figure 1. The cross-section in Figure 4A is the XZ plane passing through the central axes of each of the two bosses 36 in the housing 30. Figure 4B is a partially enlarged view of connector 1 corresponding to the IVB section in Figure 4A.

[0028] The boss 36 is provided on the rear surface 31c of the main body 31 so as to protrude in the direction opposite to the Z direction, which is the assembly direction, and provides auxiliary support for the substrate 20 and the cover 40. In this embodiment, as an example, there are two bosses 36 that are identical in shape. The two bosses 36 are arranged along the X direction at intervals that divide the space between one assembly wall 33 and the other assembly wall 33 into approximately three equal parts. The overall shape of the boss 36 is, as an example, cylindrical. However, the overall shape of the boss 36 is not limited to a cylindrical shape; for example, it may be a prism with a cross-section of a triangle or greater.

[0029] Furthermore, the boss 36 is composed of three parts: a base portion 36a, an intermediate portion 36b, and a tip portion 36c, which are arranged in series in a direction away from the rear surface 31c of the main body portion 31 along the axial direction. In this embodiment, the axial direction of the boss 36 is parallel to the Z direction.

[0030] One end of the base portion 36a is continuous with the rear surface 31c of the main body portion 31. The other end of the base portion 36a is continuous with one end of the intermediate portion 36b. A substrate contact surface 36e is formed at the position where the end of the base portion 36a and the end of the intermediate portion 36b are continuous, with the normal direction aligned with the axial direction of the boss 36.

[0031] The substrate contact surface 36e contacts the surface 21 of the substrate 20 in the opposite direction to the assembly direction at the position where the substrate 20 is positioned relative to the housing 30. Here, the position where the substrate 20 is positioned relative to the housing 30 refers to the position when the substrate 20 is properly positioned, that is, when the substrate 20 is properly positioned relative to the housing 30. When the substrate 20 is in the position, the multiple terminals 10 are properly mounted on the substrate 20, and the electrical connection is stable. In this embodiment, since the boss 36 is cylindrical, the planar shape of the substrate contact surface 36e is annular. In this case, the outer diameter of the substrate contact surface 36e corresponds to the outer diameter of the base portion 36a, and the inner diameter of the substrate contact surface 36e corresponds to the outer diameter of the intermediate portion 36b.

[0032] When the surface 21 of the substrate 20 is in contact with the substrate contact surface 36e, the inner surface of the through-hole portion 20b of the substrate 20 faces the outer surface of the intermediate portion 36b. In this embodiment, as the boss 36 is cylindrical, the opening shape of the through-hole portion 20b is circular, as described above. In this case, the opening diameter of the through-hole portion 20b is at least smaller than the outer diameter of the substrate contact surface 36e. For example, the opening diameter of the through-hole portion 20b is set to be equal to the outer diameter of the intermediate portion 36b.

[0033] One end of the intermediate portion 36b is continuous with the other end of the base portion 36a, as described above. The other end of the intermediate portion 36b is continuous with one end of the tip portion 36c. A cover contact surface 36f is formed at the position where the end of the intermediate portion 36b and the end of the tip portion 36c are continuous, with the normal direction aligned with the axial direction of the boss 36.

[0034] The cover contact surface 36f contacts the inner surface 41a of the top plate portion 41 in the opposite direction to the assembly direction at the assembly position of the cover 40 to the housing 30. Here, the assembly position of the cover 40 to the housing 30 refers to the position when the cover 40 is properly assembled to the housing 30. When the cover 40 is in the assembly position, no unintended deformation occurs to the cover 40. In this embodiment, the planar shape of the cover contact surface 36f is annular, in accordance with the cylindrical shape of the boss 36. In this case, the outer diameter of the cover contact surface 36f corresponds to the outer diameter of the intermediate portion 36b, and the inner diameter of the cover contact surface 36f corresponds to the outer diameter of the tip portion 36c.

[0035] When the inner surface 41a of the top plate portion 41 is in contact with the cover contact surface 36f, the inner surface of the housing hole portion 41c of the top plate portion 41 faces the outer surface of the tip portion 36c. In this embodiment, as the boss 36 is cylindrical, the opening shape of the housing hole portion 41c is circular, as described above. In this case, the opening diameter of the housing hole portion 41c is at least smaller than the outer diameter of the cover contact surface 36f. For example, the opening diameter of the housing hole portion 41c is set to be equal to the outer diameter of the tip portion 36c.

[0036] As described above, one end of the tip portion 36c is continuous with the other end of the intermediate portion 36b. The other end of the tip portion 36c is the tip surface 36d. The normal direction of the tip surface 36d is along the axial direction of the boss 36. In this embodiment, the housing hole portion 41c penetrates the top plate portion 41, and in this case, when the cover 40 is in the assembly position, the tip surface 36d is aligned flat with the outer surface 41b of the top plate portion 41.

[0037] The cover 40 is made of synthetic resin and, when assembled to the housing 30, forms an internal space S (see Figure 4A) that houses the substrate 20. The cover 40 is a box-shaped body having a top plate portion 41, a cylindrical portion 42, and a plurality of locking pieces 43.

[0038] The top plate portion 41 faces the back surface 22 of the substrate 20 at a distance when the cover 40 is assembled to the housing 30. In this embodiment, the planar shape of the top plate portion 41 is a substantially rectangular shape that roughly follows the cross-sectional shape of the main body portion 31 in the housing 30. The top plate portion 41 also has at least one housing hole portion 41c.

[0039] The housing hole 41c accommodates the tip 36c of the boss 36. In other words, the number of housing holes 41c in the cover 40 is equal to or greater than the number of bosses 36 in the housing 30. In this embodiment, there are two bosses 36, so there are two housing holes 41c to match the installation position and number of bosses 36. In addition, in this embodiment, the opening shape of the housing hole 41c is circular to match the cross-sectional shape of the boss 36. Furthermore, in this embodiment, the housing hole 41c penetrates the top plate portion 41.

[0040] The cylindrical portion 42 protrudes from the peripheral edge of the top plate portion 41 in the Z direction, which is the assembly direction. In other words, the cylindrical portion 42 is composed of a pair of first side wall portions 42a that face each other in the X direction and a pair of second side wall portions 42b that face each other in the Y direction, in accordance with the planar shape of the top plate portion 41. When the cover 40 is assembled to the housing 30, the edge portion 42c of the cylindrical portion 42 comes into close proximity to and faces the flange portion 32 of the housing 30, thereby forming an internal space S that is isolated from the outside.

[0041] In this embodiment, when the cover 40 is assembled to the housing 30, each first side wall portion 42a faces and is in close proximity to one of the pair of assembly wall portions 33 provided on the housing 30. The cover 40 has a plurality of locking pieces 43, each of which has a locking hole portion 43a formed as part of the first side wall portion 42a, for engaging with the engaging projection 34 provided on each assembly wall portion 33. The locking pieces 43 are elastically deformable, with the side closest to the top plate portion 41 as the fixed end and the tip portion, which is in the same position as the edge portion 42c of the cylindrical portion 42, as the free end, and extend along the Z direction. In this embodiment, since the housing 30 is provided with a pair of assembly wall portions 33, there is also a pair of locking pieces 43. The pair of locking pieces 43 are each positioned in the central region in the Y direction of the assembly wall portion 33 and face each other in the X direction. Therefore, each first side wall portion 42a has a pair of groove portions facing the side of the locking piece 43. As described above, when the cover 40 is assembled to the housing 30, the pair of guide ribs 35 provided on the assembly wall 33 fit into the pair of grooves.

[0042] Next, we will explain the function and effects of connector 1.

[0043] The connector 1 comprises a substrate 20 on which terminals 10 are mounted, a housing 30 that supports the terminals 10 with the substrate 20 exposed, and a cover 40 assembled to the housing 30, which together with the housing 30 forms an internal space S for housing the substrate 20. The housing 30 has a boss 36 that protrudes in the direction opposite to the assembly direction of the cover 40. The substrate 20 has a through hole 20b through which a part of the boss 36 passes. The cover 40 has a top plate portion 41 that is spaced apart from the substrate 20 and has a housing hole portion 41c that accommodates the tip portion 36c of the boss 36. The boss 36 has a substrate contact surface 36e that contacts the surface 21 of the substrate 20 in the direction opposite to the assembly direction at the position where the substrate 20 is positioned relative to the housing 30. The boss 36 also has a cover contact surface 36f that contacts the inner surface 41a of the top plate portion 41 in the direction opposite to the assembly direction at the position where the cover 40 is assembled relative to the housing 30.

[0044] In the example above, the assembly direction corresponds to the Z-direction.

[0045] In connector 1, the cover 40 is assembled to the housing 30, so that the circuit board 20 and some of the terminals 10 mounted on the circuit board 20 are housed in the internal space S. Therefore, connector 1 is advantageous in that it can directly protect the circuit board 20 and prevent foreign matter from entering the internal space S from the outside, thus preventing pre-emptive interference with the stable input and output of electrical signals to the circuit board 20.

[0046] Furthermore, in connector 1, when the cover 40 is assembled to the housing 30, the substrate 20 and the cover 40 are auxiliaryly supported by the boss 36.

[0047] Firstly, before the cover 40 is assembled to the housing 30, when the circuit board 20 is assembled to the housing 30 with multiple terminals 10 mounted on it, the corresponding boss 36 is inserted into the through-hole 20b provided in the circuit board 20. Then, at the position where the circuit board 20 is positioned relative to the housing 30, the circuit board contact surface 36e provided on the boss 36 contacts the surface 21 of the circuit board 20 in the direction opposite to the assembly direction. Therefore, when the cover 40 is not assembled to the housing 30, even if the circuit board 20 is unintentionally pressed along the assembly direction, it will not be pushed towards the housing 30. Thus, with connector 1, poor contact at the joint between the terminals 10 and the circuit board 20 caused by excessive pressure on the circuit board 20 is prevented, resulting in more stable electrical connections on the circuit board 20.

[0048] Secondly, when the cover 40 is assembled to the housing 30, the tip 36c of the corresponding boss 36 is accommodated in the receiving hole 41c provided in the top plate portion 41 of the cover 40. Then, at the assembly position of the cover 40 to the housing 30, the cover contact surface 36f provided on the boss 36 contacts the inner surface 41a of the top plate portion 41 in the direction opposite to the assembly direction. Therefore, even if an external force is unintentionally applied to the cover 40 when it is assembled to the housing 30, deformation such as bending is unlikely to occur in the cover 40. Accordingly, with the connector 1, damage to the terminal 10 due to contact between the terminal 10 and the cover 40 caused by deformation of the cover 40 is less likely to occur, so the electrical connection on the circuit board 20 is more stable.

[0049] As described above, according to this embodiment, a connector 1 can be provided that improves the stability of electrical connections on the substrate 20 on which the terminals 10 are mounted.

[0050] Furthermore, in connector 1, the housing hole 41c may penetrate the top plate portion 41. The tip surface 36d of the boss 36 may be flush with the outer surface 41b of the top plate portion 41 when the cover 40 is in the assembly position.

[0051] In this connector 1, when the cover 40 is assembled to the housing 30, as shown in Figure 4B, for example, an operator can recognize that the cover 40 is in the assembled position by visually confirming that the tip surface 36d is aligned flat with the outer surface 41b. Therefore, with this connector 1, the partially mated state of the cover 40 can be easily recognized externally based on the appearance of the connector 1.

[0052] In addition, in connector 1, the through-hole portion 20b may be mated with a part of the boss 36.

[0053] With this connector 1, when the cover 40 is assembled to the housing 30, the substrate 20 is firmly supported by the boss 36, which further prevents the substrate 20 from being over-pressed, and as a result, the electrical connection on the substrate 20 can be made more stable.

[0054] Furthermore, in connector 1, the housing hole 41c may be mated with the tip 36c of the boss 36.

[0055] With this connector 1, when the cover 40 is assembled to the housing 30, the cover 40 is firmly supported by the boss 36, thereby further suppressing deformation of the cover 40 caused by external forces, and as a result, the electrical connection on the substrate 20 can be made more stable.

[0056] In the above description, it is assumed that the housing hole 41c of the cover 40 penetrates the top plate portion 41. However, if it is not necessary to easily recognize the partially mated state of the cover 40 from the outside based on the appearance of the connector 1, the housing hole 41c does not necessarily have to penetrate all the way through.

[0057] Although one embodiment has been described above, the embodiments are not limited to these, and various modifications are possible within the scope of the gist of the embodiment. [Explanation of Symbols]

[0058] 1 Connector 10 terminals 20 circuit boards 20b Through hole section 30 Housing 36 Boss 36c tip 36d tip surface 36e Board contact surface 36f Cover contact surface 40 Cover 41 Top panel 41a Inner surface 41b External surface 41c Enclosure hole S interior space

Claims

1. A circuit board with terminals mounted, A housing that supports the terminals with the aforementioned substrate exposed, The housing is fitted with a cover that forms an internal space for housing the substrate, The housing has a boss that protrudes in the direction opposite to the assembly direction of the cover, The substrate has a through-hole portion that penetrates a part of the boss, The cover has a top plate portion that is spaced apart from the substrate and has a receiving hole portion for accommodating the tip of the boss, The aforementioned boss, At the position where the substrate is positioned relative to the housing, the substrate contact surface contacts the surface of the substrate in a direction opposite to the assembly direction, A connector having a cover contact surface that contacts the inner surface of the top plate portion in a direction opposite to the assembly direction at the assembly position of the cover to the housing.

2. The aforementioned housing hole penetrates the top plate portion, The connector according to claim 1, wherein the tip surface of the boss aligns flat with the outer surface of the top plate when the cover is in the assembly position.

3. The connector according to claim 1 or 2, wherein the through-hole portion engages with a part of the boss.

4. The connector according to claim 1 or 2, wherein the housing hole engages with the tip of the boss.

Images