Fitting configuration of the housing and the connector

Abstract

The present application aims to provide a housing and connector fitting structure capable of stably electrically connecting a card edge connector and a substrate provided in a housing. The housing and connector fitting structure is capable of directly electrically connecting a card edge connector and a substrate provided in a housing via a fitting box, characterized by comprising: a substrate provided in a housing; a housing hole provided in a housing; and a fitting box gap-fitted in the housing hole, the fitting box being fixed to the housing side in a state positioned by the substrate.

Description

Technical Field

[0001] The present invention relates to a fitting structure for a housing and a connector for directly electrically connecting a card edge connector to a substrate disposed within a housing. Background Technology

[0002] A card edge connector is a socket-type connector that is directly electrically connected to a connection terminal set on the end side of a substrate through wiring patterning or other methods.

[0003] Such connectors are widely used in measuring instruments, motors, electronic devices, and other fields where electronic components are installed on a substrate.

[0004] For example, Patent Document 1 discloses a locking structure in which a recess is formed on the back of the housing in order to fit and connect the connector to a three-dimensional wiring board provided in the housing (instrument housing), and the connection is locked in place when the connector is inserted into the recess.

[0005] However, if there is a deviation in the assembly position of the substrate disposed in the housing, in a structure where the connector is inserted into the recess of the housing and locked directly as described above, the contact pieces of the connector for electrical connection and the terminals such as electrodes patterned on the substrate side may be misaligned, and the electrical connection may be unstable.

[0006] Furthermore, when the substrate is pressed down by the connector, not only will the electrical connection shift, but excessive bending stress may also be applied to the substrate.

[0007] Existing technical documents

[0008] Patent documents

[0009] Patent Document 1: Japanese Patent Application Publication No. 7-312265 Summary of the Invention

[0010] The problem that the invention aims to solve

[0011] The purpose of this invention is to provide a housing and connector fitting structure that can stably electrically connect the card edge connector to the substrate disposed in the housing.

[0012] Solution for solving the problem

[0013] The housing and connector fitting structure of the present invention enables direct electrical connection between the edge connector and the substrate disposed in the housing via the fitting box. It is characterized by comprising: a substrate disposed in the housing; a housing hole disposed in the housing; and a fitting box that is gap-fitted into the housing hole, wherein the fitting box is fixed to the housing side in a state in which it is positioned by the substrate.

[0014] Here, the term "fitting box with gap fitting into the housing hole of the housing" means that the opening size of the housing hole is larger than the outer dimensions of the fitting box, and the fitting is performed with clearance in the left and right and up and down.

[0015] In addition, edge connectors refer to socket-type connectors in which terminals formed on a substrate through wiring patterning or other methods are inserted into the inner side, and electrical connection is achieved by making the terminals on the substrate side contact the contact pieces provided in the connector.

[0016] Therefore, even if the assembly position of the substrate disposed in the housing deviates, the fitting box will be positioned to match the end of the substrate, thus ensuring a stable connection position of the connector.

[0017] That is, the fixed position of the fitting box fixed to the housing side will be adjusted to the position of the substrate, so the positional relationship between the connector contact piece and the terminal of the substrate remains constant.

[0018] Furthermore, "fixed to the housing side" means not only that the fitting box is directly fixed to the housing, but also that it is indirectly fixed via assembly components, etc.

[0019] In this invention, the method for adjusting the fixed position of the fitting box as a matching substrate position can be, for example, by setting the fitting box having a slit hole, and positioning the fitting box by inserting the end of the substrate into the slit hole.

[0020] Alternatively, the substrate may be configured such that it has a recess or a protrusion at its end, and the fitting box has a engaging portion that engages with the recess or protrusion at the end of the substrate, thereby positioning the fitting box by engaging the engaging portion with the recess or protrusion.

[0021] Thus, the offset in the thickness and width directions of the mating box and the substrate is positioned.

[0022] Alternatively, in this invention, the fitting box has a flange for fixing the fitting box to the housing side, and a water-proof member is provided between the flange and the housing side.

[0023] Alternatively, with the fitting box gap fitted into the housing hole, the flange of the fitting box is opposite to the housing, and can be fixed to the housing together, for example, by screws.

[0024] By fixing it in a way that, for example, it is easy to press the waterproof components such as seals between the opposing flanges and the housing, the waterproofness between the housing and the fitting box can be ensured.

[0025] Alternatively, the fitting box may have a connector fitting portion for the connector to be inserted and fitted, and a waterproof member may be provided between the connector and the connector fitting portion.

[0026] The present invention ensures waterproofing between the fitting box and the connector by having a structure that includes waterproof components such as seals for compression.

[0027] Alternatively, in this invention, the fitting box may have a locking unit for locking the connection state between the fitting box and the connector.

[0028] Therefore, the connector that is electrically connected to the substrate can be fixed in the fitting box.

[0029] Furthermore, by securing the connector to the housing, it is easy to maintain the waterproof components under compression between the housing and the connector.

[0030] Invention Effects

[0031] In the housing and connector fitting structure of the present invention, in order to position the fitting box in accordance with the assembly dimensions of the substrate being assembled into the housing, the fitting box can be fitted into the housing hole with clearance and then fixed to the housing in accordance with the position of the substrate.

[0032] Therefore, it can absorb positional shifts between the housing and the fitting box, and will not apply bending stress loads to the substrate due to positional shifts, thus stably connecting the substrate and the connector. Attached Figure Description

[0033] Figure 1 Examples of the fitting structure of the housing and connector of the present invention are shown in (a) and (b) respectively. (a) shows the state before fitting the connector to the substrate disposed in the housing via the fitting box.

[0034] Figure 2 Examples of components in the mating structure of the housing and connector.

[0035] Figure 3 In the diagram, (a) and (b) represent examples of the construction of a mortise box.

[0036] Figure 4 In the diagram, (a) to (c) represent examples of connector construction.

[0037] Figure 5 In the diagram, the assembly process of the substrate, the fitting box, and the housing is shown in the order of (a) and (b).

[0038] Figure 6 In the text, they are represented in the order of (c) and (d). Figure 5 The follow-up.

[0039] Figure 7 The longitudinal sectional view showing the thickness direction of the substrate, (a) shows the substrate before insertion into the slit hole of the fitting box, and (b) shows its inserted state.

[0040] Figure 8 The following are cross-sectional views along the direction of the substrate surface: (a) shows the pre-engagement state of the substrate and the engagement part of the fitting box before engagement; (b) shows the engagement state.

[0041] Figure 9 A longitudinal sectional view showing the substrate and connector in their mated state.

[0042] Figure 10 In the diagram, (a) represents another example of the fitting box construction, and (b) represents an example of the fitting construction of its housing and connector.

[0043] Explanation of reference numerals in the attached figures

[0044] 1: Housing; 2: Housing hole; 10: Substrate; 11: Terminal part; 12: Recess; 20: Fitting box; 21: Connector fitting part; 22: Flange; 23: Waterproof component; 27: Slit hole; 50: Connector; 51: Housing; 52: Locking claw; 55: Contact piece; 57: Waterproof component. Detailed Implementation

[0045] The fitting structure of the housing and connector of the present invention will be described below based on the accompanying drawings.

[0046] Figure 1 (a) shows the state before the connector 50 is fitted into the substrate 10 disposed within the housing 1 via the fitting box 20. Figure 1 (b) shows its state after interlocking.

[0047] It should be noted that, for ease of explanation, in this specification, the thickness direction of the substrate is represented as the up-down direction, the direction along the substrate surface is represented as the left-right direction, and the mating direction of the connector is represented as the front-back direction.

[0048] In this specification, "casing" refers to a box, enclosure, or similar device that can house motors, electronic equipment, or other similar components.

[0049] The size of the housing and the assembly position of the fitting box assembled on the housing are not restricted. The housing 1 in the figure is represented by a dashed line so as not to restrict its size and the assembly position of the fitting box.

[0050] For example, such as Figure 2 As shown, a housing hole 2 is provided on the mounting surface 1a of the housing 1 for fitting the fitting box 20 into the gap.

[0051] Substrate 10 Figure 2 The diagram only shows the area near the connection with connector 50, but the base plate 10 is assembled into the housing 1 by means of screw fixing, riveting, etc.

[0052] On the substrate 10, recesses 12, 12 are formed at predetermined positions when viewed from above, a convex terminal portion 11 is provided between the recesses 12, 12, and side portions 13, 13 are provided at both ends of the recesses 12, 12.

[0053] This embodiment is an example in which multiple terminals 11a are provided on both the upper and lower sides of the terminal portion 11, but it is also possible to provide terminals only on one side of the terminal portion.

[0054] Furthermore, terminal 11a is formed as part of a wiring pattern for electronic components, etc., mounted on a substrate.

[0055] Figure 3 Examples of the construction of the interlocking box 20 are shown in (a) and (b).

[0056] In the fitting box 20, one end of the generally cylindrical main body is closed by the back part 25, and the other end is open. The outer peripheral surface of the main body has a flange 22 that protrudes outward.

[0057] The flange 22 can be fitted with a sealing element or other water-proof component 23 on its back side, and has mounting holes 22a and 22b on the outside of the water-proof component 23.

[0058] A connector fitting portion 21 is formed on the inner side of the fitting box 20 for fitting into the seat 51 of the connector 50, which will be described later.

[0059] The shape of the connector mating part 21 is not particularly limited as long as it corresponds to the shape of the seat 51, which is the mating object. For example, the connector mating part 21 has grooves 21a and 21b at a specified position. As long as the seat 51 with protrusions 51a and 51b corresponding to the grooves 21a and 21b is inserted into the connector mating part 21, the connector 50 can be held in the mating box 20 with high positional accuracy.

[0060] Furthermore, the locking recess 32 formed in the connector mating portion 21 has a locking hole 33 at a predetermined position, thereby allowing the locking claw 52 of the connector 50 (base 51) described later to be inserted into and locked in the locking hole 33.

[0061] In the main body of the fitting box 20, the rear part 24 of the main body, which is located behind the flange 22, is disposed in the housing 1 in such a way that it is fitted into the housing hole 2 with a gap.

[0062] by Figure 2 To illustrate, the vertical dimension H0 and the width dimension W0 of the opening of the housing hole 2 are larger than the vertical dimension H1 and the width dimension W1 of the outer shape of the rear part 24 of the main body of the fitting box 20, respectively.

[0063] On the other hand, the front part 31 of the main body is disposed outside the housing 1 by fitting the flange 22 to the mounting surface 1a of the housing 1.

[0064] It should be noted that the front part 31 of the main body is not necessarily limited to a cylindrical shape. As long as the connector 50 can be fitted and / or locked inside the front part 31 of the main body, it can also be semi-circular, etc.

[0065] A back portion 25 extends rearward from the rear portion 24 via a step portion 26, and a slit hole 27 is provided on the back portion 25.

[0066] The slit hole 27 is a straight line that runs through the back surface portion 25 in the front-back and left-right directions. By making the slit size of the slit hole 27 correspond to the thickness of the substrate 10, the terminal portion 11 of the substrate 10 can be inserted.

[0067] Figure 4 Examples of the construction of connector 50 are shown in (a) to (c).

[0068] The connector 50 has a base 51 that is inserted into the connector fitting portion 21 of the fitting box 20. In this embodiment, protrusions 51a and 51b are formed at predetermined positions on the outer peripheral surface of the generally elliptical cylindrical base 51.

[0069] Furthermore, the locking claw 52, ​​which is located on the outer peripheral surface of the base 51 and at a position corresponding to the locking recess 32 of the connector mating portion 21, can be inserted into the locking hole 33 of the locking recess 32.

[0070] The locking claw 52 is integral with the pressing part 53 located on its front side. By pressing down the pressing part 53, the locking claw 52 is pulled out from the locking hole 33 in a flexing manner.

[0071] In the base 51, an insertion port 54 is formed on the back side for inserting the terminal portion 11 of the substrate 10, and a waterproof component 57 such as a sealing element is attached to the outer peripheral surface on the back side.

[0072] Multiple contact pieces 55 connected to the core wires of the cable 56 are held inside the base 51. The top of the contact piece 55 is shaped into a mountain shape so as to slide into contact with the terminal 11a on the terminal part 11.

[0073] In this embodiment, as Figure 4 As shown in (b), the contact pieces 55, 55 are arranged opposite each other on the upper and lower sides. When the terminal portion 11 of the substrate 10 is inserted between the top portions of the contact pieces 55, 55, the top portions of the contact pieces 55, 55 respectively contact the terminals 11a, 11a on both sides of the terminal portion 11.

[0074] It should be noted that a connector 50 with contact pieces 55 provided only on the upper and lower sides of the base 51 can also be used.

[0075] Furthermore, by protecting the connection between the cable 56 and the contact piece 55 with a waterproof adhesive, the waterproofness of the base 51 can be ensured.

[0076] based on Figure 5 , Figure 6 The process of assembling the fitting box in conjunction with the substrate disposed within the housing is described.

[0077] like Figure 5 As shown in (a), the rear part 24 of the main body of the fitting box 20 is fitted into the housing hole 2 from outside the housing 1, as follows. Figure 5 As shown in (b), the terminal portion 11 of the substrate is inserted into the slit hole 27 of the fitting box inside the housing 1.

[0078] exist Figure 5 In state (b), the longitudinal cross-sectional view of the substrate 10 in the thickness direction is as follows. Figure 7 As shown in (a), the cross-sectional view along the direction of the substrate surface is as follows. Figure 8 As shown in (a).

[0079] At this time, the size (H0, W0) of the opening of the housing hole 2 is larger than the outer dimensions (H1, W1) of the rear part 24 of the main body, so the fitting box 20 is in a state of moving up and down and left and right within the housing hole 2.

[0080] Next, as Figure 6 As shown in (c), the flange 22 is assembled to the assembly surface 1a by assembly components 40 such as screws.

[0081] The inner diameter D of the mounting holes 22a and 22b on the flange 22 is larger than the thread outline M of the mounting member 40. With the mounting box 20 positioned in the vertical direction H and the width direction W by matching the position of the terminal portion 11 of the substrate as described later, the mounting member 40 is screwed into the mounting holes 3a and 3b of the housing 1, thereby fixing the mounting box 20.

[0082] It should be noted that this embodiment is an example of using the mounting holes 22a and 22b provided on the flange 22 to fix the fitting box to the housing. It is an example where the mounting surface of the housing is provided with mounting holes 3a and 3b corresponding to the mounting holes 22a and 22b, but the assembly method of the flange 22 is not particularly limited.

[0083] For example, locking claws that fix the positioning and fitting box after it can be set on the housing side.

[0084] Therefore, as Figure 6 As shown in (d), by positioning the fitting box 20 and holding the substrate 10 in conjunction with the substrate 10, the load on the substrate can be reduced.

[0085] The longitudinal and transverse sectional views at this point are as follows: Figure 7 (b) Figure 8 As shown in (b).

[0086] like Figure 7 As shown in (a) and (b), the slit size of the slit hole 27 corresponds to the thickness direction of the substrate 10, thereby determining the vertical position H of the terminal portion 11 protruding into the connector mating portion 21.

[0087] In addition, such as Figure 8 As shown in (a) and (b), the stepped portion 26 of the fitting box 20 abuts against the recess 12 of the substrate 10, and the outer peripheral surface of the rear portion 24 of the main body abuts against the inner side of the side portion 13, thereby the stepped portion 26 and the rear portion 24 of the main body become a locking portion that engages with the recess 12.

[0088] Therefore, the position of the terminal portion 11 protruding into the connector mating portion 21 in the width direction W is determined.

[0089] The fitting box 20 is positioned in accordance with the thickness and width of the substrate 10, and the substrate 10 is held in the fitting box 20.

[0090] It should be noted that the water-proof component 23, which is attached to the back side of the flange 22, is pressed against the housing 1 by the fastening of the assembly component 40, thereby preventing water from entering between the flange 22 and the assembly surface 1a.

[0091] Figure 9 The diagram shows the state in which the connector 50 is fitted into the substrate 10 disposed within the housing 1 as described above. Figure 1 (b) is a longitudinal sectional view of the state shown.

[0092] Since the substrate 10 is positioned relative to the connector mating portion 21 in the vertical and horizontal directions, the terminal portion 11 of the substrate 10 is inserted with high dimensional accuracy into the insertion port 54 of the connector base 51 that is mated with the connector mating portion 21 between the contact pieces 55, 55.

[0093] Furthermore, the locking claw 52 provided on the base 51 is inserted into the locking hole 33 of the connector mating part 21, and the front side of the locking claw 52 abuts against the locking recess 32, thereby locking the mating state of the connector 50 and the mating box 20.

[0094] It should be noted that at this time, the waterproof component 57 installed on the back side of the base 51 is pressed against the connector mating part 21 to waterproof the connection between the connector mating part 21 and the base 51 of the connector 50.

[0095] Figure 10 Another embodiment of the fitting box 20 is shown in (a).

[0096] In this embodiment, the step portion 26 and the rear portion 24 of the main body are provided with an inlet slit 28 for the side portion 13 of the substrate 10, so that the recess 12 provided on the substrate 10 can be more easily engaged with the fitting box 20.

[0097] Therefore, as Figure 10 As shown in (b), the side portion 13 of the substrate 10 can be inserted into the slit hole along the guide slit 28, making it easier to position the fitting box 20 in conjunction with the substrate 10.

Claims

1. A fitting structure for a housing and a connector, capable of directly electrically connecting a card edge connector to a substrate disposed within the housing via a fitting box, characterized in that, have: The substrate is disposed inside the housing; A housing hole is provided in the housing; and The fitting box is gap-fitted into the housing hole. The fitting box is a component separate from the housing, having a cylindrical main body and a flange that protrudes outward from the outer peripheral surface of the main body. The fitting box has a slot hole with a slot size corresponding to the thickness of the substrate, and the end of the substrate is inserted into the slot hole to be positioned in the vertical direction of the substrate. The substrate has a recess or a protrusion at its end along the width direction of the substrate. The fitting box has a engaging portion that engages with the recess or protrusion provided at the end of the substrate. When the width direction of the fitting box is positioned by engaging the engaging portion with the recess or protrusion, the fitting box is fixed to the housing side by a mounting hole provided in the flange.

2. The fitting structure of the housing and connector according to claim 1, characterized in that, A water-proof member is provided between the flange and the housing side.

3. The fitting structure of the housing and connector according to claim 2, characterized in that, The fitting box has a connector fitting portion for the connector to be inserted and fitted. A waterproof component is provided between the connector and the connector mating portion.

4. The fitting structure of the housing and connector according to claim 3, characterized in that, The fitting box has a locking unit for locking the connection state with the connector.

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