CN210258244U - Component fixing structure and in-vehicle device - Google Patents
Component fixing structure and in-vehicle device Download PDFInfo
- Publication number
- CN210258244U CN210258244U CN201921314216.XU CN201921314216U CN210258244U CN 210258244 U CN210258244 U CN 210258244U CN 201921314216 U CN201921314216 U CN 201921314216U CN 210258244 U CN210258244 U CN 210258244U
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- CN
- China
- Prior art keywords
- screw
- housing
- mounting member
- bracket
- fixing portion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Casings For Electric Apparatus (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
- Connection Of Plates (AREA)
Abstract
A component fixing structure and an in-vehicle device can prevent metal chips generated when a bracket and a mounting component are fixed by screw threads from leaking to the outside. The in-vehicle apparatus (10) includes: a bracket (30), the bracket (30) being fixed to the vehicle; the mounting component (40), the mounting component (40) is used for fixing the support (30) by screw thread; a screw (50), wherein the screw (50) fixes the bracket (30) and the mounting component (40) by screw thread; a housing (20), wherein the housing (20) is fixed by the mounting component (40). The mounting member (40) has: a screw fixing portion (41) that fixes the bracket (30) by a screw (50) at a position spaced apart from the outer surface of the housing (20) by a gap (41); the close contact fixing part (43) is fixed in a state of close contact with the outer surface of the housing (20) by the whole circumference of the screw fixing part (41), and a gap between the screw fixing part (41) and the outer surface of the housing (20) is formed as a closed space (45).
Description
Technical Field
The utility model relates to a with the independent part fixed to the part fixed knot of main part constructs and uses the mobile unit of part fixed knot structure.
Background
In a conventional in-vehicle device, a mounting member is screwed to a housing of the in-vehicle device, and the mounting member is mounted to a vehicle (see, for example, patent document 1).
Documents of the prior art
Patent document
Patent document 1: japanese patent laid-open No. 61-4478.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved by the utility model
Here, it is assumed that the mounting member is fixed to the vehicle via a separate member such as a bracket. In this case, a bracket is screwed to the mounting member, and the bracket is also screwed to a part of the vehicle. In patent document 1, a gap exists between the mounting component and the housing of the in-vehicle apparatus. Therefore, there are the following problems: metal chips generated when the bracket is screwed to the mounting member run out of the mounting member through the gap and enter the housing through an opening such as a vent formed in the housing of the in-vehicle device. The following possibilities exist: the metal chips entering the inside of the case fall on the substrate housed inside the case, causing an electrical short circuit, resulting in a failure of the in-vehicle equipment.
The utility model discloses a solve above-mentioned technical problem and form, its purpose prevents that the metal fillings that produce when independent parts such as support and installation component screw thread tightening from running this condition of outside.
Technical scheme for solving technical problem
The utility model discloses a part fixed knot constructs includes: a mounting member to which the separate member is screwed; and a main body portion to which the mounting member is fixed, the mounting member having a screw fixing portion and a close-contact fixing portion, the screw fixing portion screw-fixing the separate member at a position spaced apart from the main body portion by a gap, the close-contact fixing portion being fixed in a state of close contact with the main body portion by the entire circumference of the screw fixing portion, thereby forming the gap between the screw fixing portion and the main body portion into a closed space.
The close contact fixing portion is caulked and fixed to the main body.
The screw fixing portion is a projection formed on the mounting member.
Furthermore, the utility model discloses an on-vehicle equipment includes: a bracket fixed to the vehicle; a mounting member to which the bracket is screwed; a screw that screw-fixes the bracket and the mounting member; and a housing to which the mounting member is fixed, the mounting member having a screw fixing portion and a close-fitting fixing portion, the screw fixing portion fixing the bracket by a screw at a position spaced apart from an outer surface of the housing, the close-fitting fixing portion being fixed in close-fitting relation to the outer surface of the housing by the entire circumference of the screw fixing portion, thereby forming a gap between the screw fixing portion and the outer surface of the housing as a closed space.
Further, the length of the closed space from the outer surface of the housing to the inner surface of the screw fixing portion is longer than the length of the shaft of the screw.
Effect of the utility model
According to the utility model discloses, because form the clearance between screw fixing part and the main part into airtight space, consequently, can prevent following condition: the metal chips generated when the independent member is screwed to the mounting member run out of the closed space.
Drawings
Fig. 1 is an exploded perspective view showing a configuration example of an in-vehicle device to which a component fixing structure according to a first embodiment is applied.
Fig. 2 is a perspective view showing a state in which a mounting member is fixed to an outer surface of a housing.
Fig. 3 is a perspective view showing a state in which the mounting member and the bracket are fixed to the outer surface of the housing.
Fig. 4 is a sectional view of the in-vehicle apparatus of fig. 3 taken along the line a-a.
Fig. 5 is an exploded perspective view showing a modification of the in-vehicle device to which the component fixing structure according to the first embodiment is applied.
Fig. 6 is an exploded perspective view showing a configuration example of a component fixing structure according to a second embodiment.
Description of the symbols
10 an in-vehicle device;
20 a case (main body portion);
21 riveting part;
22 a fan vent;
23 a recess;
30 brackets (separate parts);
30a substrate (independent part);
31 holes;
32 holes;
40 mounting the component;
41 a screw fixing part;
42 a threaded hole;
43 closely adhering to the fixing part;
44 riveting part;
45, sealing the space;
50 screws.
Detailed Description
Implementation mode one
Fig. 1 is an exploded perspective view showing a configuration example of an in-vehicle device 10 to which a component fixing structure according to a first embodiment is applied. The component fixing structure of the first embodiment includes a mounting component 40 and a housing 20. This component fixing structure is a structure for fixing the stand 30, which is a separate component, to the housing 20 of the in-vehicle apparatus 10, which is a main body portion. In the first embodiment, the housing 20, the bracket 30, and the mounting member 40 are formed of metal plates.
The bracket 30 is a member for screwing the in-vehicle apparatus 10 to the vehicle. Two holes 32 through which two screws, not shown, are passed are formed in the bracket 30, and the bracket 30 is screwed to the vehicle by being fastened to the vehicle through the respective holes 32 by the two screws, not shown. Further, two holes 31 through which screws 50 are passed are formed in the bracket 30, and the screws 50 are used to screw-fix the bracket 30 to the in-vehicle apparatus 10.
The shape of the bracket 30 for fixing the vehicle-mounted device 10 to the vehicle differs from vehicle to vehicle. Therefore, it is also necessary to change the position of the screw hole formed in the housing 20 for screw-fixing the bracket 30 for each vehicle. Thus, it is currently necessary to make several types of housings 20 with different locations for the threaded holes. Therefore, in the first embodiment, the housing 20 is shared by forming the screw hole portion for screwing the holder 30 as the mounting member 40 as a separate member. The mounting member 40 having a threaded hole portion (a threaded hole 42 described later) for screwing the bracket 30 is designed for each vehicle.
As shown in fig. 1, the mounting member 40 has a screw fixing portion 41, and the screw fixing portion 41 has a shape protruding from an outer surface of the housing 20. The screw fixing portion 41 is a projection for screw-fixing the bracket 30 by the screw 50 at a position spaced apart from the outer surface of the housing 20. A screw hole 42 for fastening the screw 50 is formed in the screw fixing portion 41. The screw 50 is used to screw-fix the bracket 30 to the mounting member 40. In the illustrated example, one screw fixing portion 41 and one screw hole 42 are formed for one screw 50, but the present invention is not limited to the above configuration. For example, one screw fixing portion 41 may be formed for two screws 50, and two screw holes 42 may be formed for the screw fixing portion 41. However, the number and position of the screw holes 42 need to correspond to the number and position of the holes 31 of the bracket 30.
The attachment member 40 has a close-contact fixing portion 43, and the close-contact fixing portion 43 is configured to fix the screw fixing portion 41 in close contact with the outer surface of the housing 20 by caulking over the entire circumference thereof. A hole formed by burring is formed as the caulking portion 44 in the close contact fixing portion 43. On the other hand, in the case 20, a caulking portion 21 is formed at a position facing the caulking portion 44. The rivet 21 is a hole into which the burring portion of the rivet 44 is inserted. The burring portion of the rivet 44 is inserted into the hole of the rivet 21, and the front end of the inserted burring portion is riveted, so that the mounting member 40 is riveted to the housing 20. The number and positions of the caulking portions 21 and 44 are not limited to the illustrated example. However, the number and positions of the caulking portions 21 and 44 are common regardless of the vehicle. The method of fixing the close contact fixing portion 43 to the housing 20 is not limited to the caulking fixing, and may be fixed by resin rivets, welding, or the like as long as metal chips are not generated.
Next, an assembly procedure of the component fixing structure will be described.
The worker first caulks the caulking portion 21 of the case 20 and the caulking portion 44 of the mounting member 40 to thereby caulk and fix the mounting member 40 to the case 20. Fig. 2 is a perspective view showing a state in which the attachment member 40 is fixed to the outer surface of the housing 20.
Next, the operator fastens the screw 50 to the screw hole 42 of the mounting member 40 through the hole 31 of the bracket 30, thereby screwing the bracket 30 to the mounting member 40. Thereby, the holder 30 is fixed to the housing 20. Fig. 3 is a perspective view showing a state in which the mounting member 40 and the bracket 30 are fixed to the outer surface of the housing 20.
Finally, the worker fastens a screw, not shown, to the vehicle through the hole 32 of the bracket 30, thereby screwing the bracket 30 to the vehicle. Thereby, the in-vehicle apparatus 10 is fixed to the vehicle.
Fig. 4 is a cross-sectional view of the in-vehicle apparatus 10 of fig. 3 taken along the line a-a. As shown in fig. 4, a close contact fixing portion 43 is formed on the entire circumference of the screw fixing portion 41, and the close contact fixing portion 43 is in a state of close contact with the outer surface of the housing 20. Further, the screw hole 42 formed in the screw fixing portion 41 is closed by the screw 50. Therefore, the clearance between the screw fixing portion 41 and the outer surface of the housing 20 constitutes the closed space 45, and even if metal chips are generated when the screw 50 is fixed to the screw hole 42, the metal chips do not escape to the outside of the closed space 45. Therefore, the following can be prevented: the metal chips enter the housing 20 through the fan vent 22 formed in the housing 20 and short-circuit the substrate accommodated in the housing 20. Further, since the hole 32 of the bracket 30 is formed at a position not overlapping the housing 20 and distant from the housing 20, even if metal chips are generated when a screw, not shown, is inserted through the hole 32 and fixed to the vehicle, the possibility that the metal chips enter the inside of the housing 20 from the fan vent 22 and the like is low.
The length L1 of the sealed space 45 from the outer surface of the casing 20 to the inner surface of the screw fixing portion 41 is preferably longer than the length L2 of the shaft of the screw 50. The shaft of the screw 50 refers to a portion of the screw 50 from which the head is removed, i.e., a so-called threaded portion. Since L1 > L2, the screw 50 can be reliably fastened to the screw hole 42. On the other hand, in the case of L1 ≦ L2, there may be the following: during fastening, the tip of the screw 50 reaches the outer surface of the housing 20, and the screw 50 becomes loose and the fastening force becomes insufficient.
In the example of fig. 1 to 4, a convex portion is formed in the mounting member 40 to form the sealed space 45, but a concave portion may be formed in the housing 20. Fig. 5 is an exploded perspective view showing a modification of the in-vehicle device 10 to which the component fixing structure according to the first embodiment is applied. As shown in fig. 5, a recess 23 is formed in the case 20, and a caulking portion 21 is formed around the recess 23. The mounting member 40 is a flat plate member, and has a screw hole 42 formed at a position facing the recess 23 and a caulking portion 44 formed at a position facing the caulking portion 21. The close contact fixing portion 43 of the mounting member 40 is fixed by caulking over the entire circumference of the recess 23. Therefore, the gap between the recess 23 and the mounting member 40 constitutes a closed space.
As described above, the in-vehicle apparatus 10 of the first embodiment includes: a bracket 30, the bracket 30 being fixed to the vehicle; a mounting member 40, the mounting member 40 being screwed to the bracket 30; a screw 50, the screw 50 threadedly fixing the bracket 30 and the mounting member 40; a housing 20, the housing 20 being fixed by a mounting member 40. The mounting member 40 includes: a screw fixing portion 41, the screw fixing portion 41 screw-fixing the bracket 30 by a screw 50 at a position spaced apart from the outer surface of the housing 20; the close contact fixing portion 43 is fixed to the outer surface of the housing 20 over the entire circumference of the screw fixing portion 41, and the gap between the screw fixing portion 41 and the outer surface of the housing 20 is formed as a closed space 45 by the close contact fixing portion 43 being in close contact with the outer surface of the housing 20. With the above configuration, the following can be prevented: the metal chips generated when the bracket 30 is screw-fixed to the mounting member 40 run out of the closed space 45. Further, by forming the screw hole 42 for screwing the bracket 30 as the mounting member 40 as a separate member, the housing 20 can be shared regardless of the vehicle.
In the first embodiment, since the housing 20 is caulked and fixed by the close contact fixing portion 43, metal chips are not generated when the mounting member 40 is fixed to the housing 20.
In the first embodiment, the length L1 from the outer surface of the casing 20 to the inner surface of the screw fixing portion 41 of the sealed space 45 is longer than the length L2 of the shaft of the screw 50. With the above structure, the screw 50 can be reliably fastened to the screw fixing portion 41.
In the first embodiment, the screw fixing portion 41 is a convex portion formed on the mounting member 40. The convex portion can be easily formed by drawing the metal plate. The concave portion 23 of the case 20 shown in fig. 5 can also be formed by drawing, but the above-described convex portion of the mounting member 40 is easier to be drawn than the concave portion 23.
Second embodiment
Fig. 6 is an exploded perspective view showing a configuration example of a component fixing structure according to a second embodiment. In the first embodiment, a component fixing structure for fixing the stand 30, which is a separate component, to the housing 20 of the in-vehicle apparatus 10, which is a main body, is explained. In the second embodiment, a component fixing structure for fixing the substrate 30a as an independent component to the housing 20 as a main body will be described. In fig. 6, the same or corresponding portions as those in fig. 1 to 5 are denoted by the same reference numerals, and the description thereof is omitted.
The position of the hole 31 of the substrate 30a for passing the screw 50 therethrough differs depending on the mounting position of the electronic component. Therefore, it is also necessary to change the position of the screw hole formed in the housing 20 for screwing the substrate 30a for each substrate 30 a. Thus, it is currently necessary to make several types of housings 20 with different locations for the threaded holes. Therefore, in the second embodiment, the housing 20 is shared by forming the screw hole portion for screwing the substrate 30a as the mounting member 40 as a separate member.
As shown in fig. 6, the mounting member 40 having a screw hole 42 for screwing the substrate 30a is fixed to a position facing the hole 31 of the substrate 30 a. Specifically, the close contact fixing portion 43 of the mounting member 40 is fixed to the case 20 by caulking, resin rivet, welding, or the like. A convex screw fixing portion 41 is formed in the mounting member 40, and a screw hole 42 is formed in the screw fixing portion 41. The screw 50 is passed through the hole 31 formed in the base plate 30a and fastened to the screw hole 42 of the screw fixing portion 41. Since the clearance between the screw fixing portion 41 and the outer surface of the housing 20 constitutes a closed space, even if metal chips are generated when the screw 50 is fixed to the screw hole 42, the metal chips do not escape to the outside of the closed space.
In addition, the present invention can freely combine the respective embodiments, or can be modified in any of the constituent elements of the respective embodiments, or can omit any constituent element in the respective embodiments within the scope of the present invention.
Claims (5)
1. A component fixing structure, comprising:
a mounting member to which the separate member is screwed; and
a main body part to which the mounting member is fixed,
the mounting member has a screw fixing portion that fixes the independent member by screw threads at a position spaced apart from the main body portion by a gap, and a close attachment portion that is fixed in close contact with the main body portion over the entire circumference of the screw fixing portion, thereby forming the gap between the screw fixing portion and the main body portion as a closed space.
2. The component fixing structure according to claim 1,
the close-fitting fixing part is riveted and fixed to the main body part.
3. The component fixing structure according to claim 1,
the screw fixing portion is a projection formed on the mounting member.
4. An in-vehicle apparatus, characterized by comprising:
a bracket fixed to a vehicle;
the mounting component is used for fixing the bracket by screw threads;
a screw that threadedly secures the bracket to the mounting member; and
a housing to which the mounting member is fixed,
the mounting member includes a screw fixing portion that fixes the bracket to the outer surface of the housing by a screw at a position spaced apart from the outer surface of the housing by a gap, and a close-fitting fixing portion that is fixed to the outer surface of the housing by the entire circumference of the screw fixing portion so as to form the gap between the screw fixing portion and the outer surface of the housing as a closed space.
5. The in-vehicle apparatus according to claim 4,
the length of the closed space from the outer surface of the housing to the inner surface of the screw fixing portion is longer than the length of the shaft of the screw.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018-157231 | 2018-08-24 | ||
| JP2018157231A JP7204377B2 (en) | 2018-08-24 | 2018-08-24 | Part fixing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210258244U true CN210258244U (en) | 2020-04-07 |
Family
ID=69622825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921314216.XU Expired - Fee Related CN210258244U (en) | 2018-08-24 | 2019-08-12 | Component fixing structure and in-vehicle device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP7204377B2 (en) |
| CN (1) | CN210258244U (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0667914U (en) * | 1993-01-12 | 1994-09-22 | ヤマハ株式会社 | Screw cover |
| JP2001239896A (en) * | 2000-03-02 | 2001-09-04 | Calsonic Kansei Corp | Support structure for on-vehicle machine |
| JP2004079562A (en) * | 2002-08-09 | 2004-03-11 | Furukawa Electric Co Ltd:The | Housing, and housing for optical module |
| JP2007296934A (en) * | 2006-04-28 | 2007-11-15 | Toyota Motor Corp | Power source device |
| JP5359927B2 (en) * | 2010-02-24 | 2013-12-04 | 株式会社デンソー | Busbar fastening structure and power conversion device |
| JP6627667B2 (en) * | 2016-07-07 | 2020-01-08 | 株式会社豊田自動織機 | Terminal block structure |
-
2018
- 2018-08-24 JP JP2018157231A patent/JP7204377B2/en active Active
-
2019
- 2019-08-12 CN CN201921314216.XU patent/CN210258244U/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP7204377B2 (en) | 2023-01-16 |
| JP2020031179A (en) | 2020-02-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200407 Termination date: 20210812 |