CN110733438A - Circuit board, lighting and/or signalling device and motor vehicle - Google Patents
Circuit board, lighting and/or signalling device and motor vehicle Download PDFInfo
- Publication number
- CN110733438A CN110733438A CN201810801555.4A CN201810801555A CN110733438A CN 110733438 A CN110733438 A CN 110733438A CN 201810801555 A CN201810801555 A CN 201810801555A CN 110733438 A CN110733438 A CN 110733438A
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- Prior art keywords
- sub
- circuit board
- groove
- tongue
- wire harness
- 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.)
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- 230000011664 signaling Effects 0.000 title claims abstract description 14
- 210000002105 tongue Anatomy 0.000 description 65
- 230000004308 accommodation Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 238000005452 bending Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/0207—Wire harnesses
- B60R16/0215—Protecting, fastening and routing means therefor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
The invention relates to circuit boards, lighting and/or signaling devices and motor vehicles, wherein a groove (1) is formed on the circuit board, the groove (1) defines a deformable tongue (2), the groove (1) comprises a sub-groove (11) located on a side of the tongue (2) and a second sub-groove (12) located on a second side of the tongue (2) opposite to the side, and the deformable tongue (2) is configured to press against a wire harness (20) passing through of the sub-groove (11) and the second sub-groove (12) and out of the other of the sub-groove (11) and the second sub-groove (12) to achieve a limit of the wire harness (20).
Description
Technical Field
The invention relates to circuit boards, in particular to a circuit board capable of limiting a wiring harness in a lighting and/or signal indicating device of motor vehicles.
The invention also relates to a lighting and/or signaling device and a motor vehicle having such a circuit board.
Background
In the lighting and/or signal indicating device of the motor vehicle, such as the head lamp, the rear lamp, the fog lamp and the like of the vehicle, various circuit boards for realizing the control of the lighting and/or signal indicating device are often arranged according to the requirements of various functions, and wire harnesses for transmitting electric signals are arranged between the circuit boards or on the circuit boards.
solutions for limiting the wire harness are to fix the wire harness led out from the circuit board to other parts besides the circuit board, such as lighting and/or signal indicating devices.
Therefore, there is a need for a highly reliable and simple structure stop device for a wiring harness on a circuit board.
Disclosure of Invention
The invention aims to provide circuit boards, which can conveniently and reliably limit a wiring harness through a limiting structure formed on the circuit boards.
In order to achieve the above object, the technical solution of the present invention is achieved by:
the embodiment of the invention provides circuit boards, wherein a groove is formed on the circuit board, the groove defines a deformable tongue piece, the groove comprises a th sub-groove positioned on a side of the tongue piece and a second sub-groove positioned on a second side of the tongue piece opposite to the side, and the deformable tongue piece is configured to be pressed against wiring harnesses penetrating from of the th sub-groove and the second sub-groove and penetrating from another of the th sub-groove and the second sub-groove so as to limit the wiring harnesses.
, the edge of at least of the sub-groove, the second sub-groove and the tongue is formed with a wire harness accommodating part for the wire harness, the size of the wire harness accommodating part is matched with the diameter of the wire harness, so that the wire harness is limited by steps.
, the width of the sub-slot and/or the second sub-slot is matched to the wiring harness so that the wiring harness can pass into/out of the circuit board via the sub-slot or the second sub-slot.
, the free end of the tongue is provided with two tongue protrusions extending transversely to the extension direction of the tongue so as to prevent the wire harness from moving out of the or the second sub-groove.
, the th sub-slot and/or the second sub-slot is provided with a sub-slot protrusion extending transversely to the extending direction of the sub-slot so as to limit the wire harness from moving out of the th sub-slot or the second sub-slot.
, the free end of the tongue is provided with a tongue protrusion, the th sub-slot and/or the second sub-slot is provided with a sub-slot protrusion, and the tongue protrusion and the sub-slot protrusion cooperate to limit the removal of the wiring harness from the th sub-slot or the second sub-slot.
, the th sub-slot and the second sub-slot are configured to be open toward an edge of the circuit board such that the tongue is formed at a position of the edge of the circuit board.
, a third sub-slot is also formed in the circuit board, the third sub-slot configured to communicate the sub-slot and the second sub-slot to form a closed slot such that the tongue is formed inside the circuit board.
, the circuit board further includes a conductive trace, the tongue being disposed in a region of the circuit board where the conductive trace is not located, thereby avoiding adverse effects on the conductive trace due to bending of the tongue edge.
, the groove is provided with a shield to space the wire harness from the wall of the wire harness receiving portion, and the shield prevents the insulation layer of the wire harness from being damaged by the wall of the groove and causing a short circuit.
, the circuit board is provided with a plurality of harness receiving portions for receiving respective harnesses.
, the wire harness receiving part is composed of a receiving part formed on the tongue piece and a second receiving part formed on the edge of the sub-groove opposite to the tongue piece.
, the wire harness receiving portion is formed on the tongue or on an edge of the sub-slot.
Embodiments of the present invention also provide lighting and/or signaling devices comprising a circuit board as described in any of the exemplary embodiments above.
Embodiments of the present invention also provide motor vehicles including a circuit board as described in any of the exemplary embodiments above or a lighting and/or signaling device as described above.
As described in the above at least embodiments of the present invention, the circuit board, the lighting and/or signaling device and the motor vehicle including the same, since the deformable tongue piece for limiting the wire harness is formed by forming the groove on the circuit board itself, the effective limitation of the wire harness can be achieved without an additional wire harness limiting structure, the wire harness is prevented from being damaged, and the cost and the occupied space are saved, while the wire harness is prevented from being separated from the circuit board.
Drawings
FIG. 1 illustrates a perspective view of a circuit board and a lamp socket of a lighting and/or signaling device according to an embodiment of the present invention;
FIG. 2 illustrates a perspective view of a circuit board according to an th embodiment of the invention;
FIG. 3 shows a perspective view of another side of the circuit board shown in FIG. 2;
FIG. 4 shows a schematic front view of the circuit board shown in FIG. 2;
fig. 5 shows a schematic front view of a circuit board according to a second embodiment of the invention; and
fig. 6 shows a schematic front view of a circuit board according to a third embodiment of the invention.
Detailed Description
The technical solution of the present invention will be described in further detail by steps through examples in conjunction with the accompanying drawings, in which the same reference numerals indicate the same or similar components throughout the specification, and the following description of the embodiments of the present invention with reference to the drawings is intended to explain the general inventive concept of the present invention and should not be construed as limiting the present invention to .
In the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the disclosure, however, it will be apparent that or more embodiments may be practiced without these specific details.
FIG. 1 illustrates a perspective view of a circuit board and a light socket of a lighting and/or signaling device in accordance with an embodiment of the present invention, as can be seen in FIG. 1, the wiring harness 20 on the circuit board is close to the light socket 30, and thus, if good positioning of the wiring harness 20 is not achieved, it is easy to cause the wiring harness to scrape against the light socket, resulting in breakage of the wiring harness.
According to the general inventive concept, circuit boards are provided, wherein a groove 1 is formed on the circuit board, the groove 1 defines a deformable tongue piece 2, the groove 1 comprises a th sub-groove 11 located at a side of the tongue piece 2 and a second sub-groove 12 located at a second side of the tongue piece 2 opposite to the side, wherein the deformable tongue piece 2 is configured to press against a wire harness 20 which penetrates from of the th sub-groove 11 and the second sub-groove 12 and penetrates out from the other of the th sub-groove 11 and the second sub-groove 12 to achieve a position limitation of the wire harness 20, according to the general inventive concept, the deformable tongue piece is formed on the circuit board itself by forming a groove to limit the wire harness between the deformable tongue piece 2 and the circuit board body, the position limitation structure is formed by the circuit board itself, no additional component is required to limit the wire harness, space and cost are saved, and the structure directly positions the wire harness on the circuit board, and the separation of the wire harness from the circuit board is effectively avoided.
For the material of the circuit board, it is common to use a material such as epoxy fiberglass cloth board, for example FR-4, FR-5, which itself has a flexibility of , the thickness of the circuit board is also , which is generally thin, for example between 0.8 and 1.6mm, when the tongue 2 is formed by forming a groove through its periphery, this tongue 2 has a deformable nature due to its shape in sheet form and its material, so that it is possible to lift the free end of the tongue 2 away from the body of the circuit board, to pass said wire harness 2 around said tongue 2 and out the other side of the tongue, and due to the deformable nature of the tongue 2, after completing the above action, the tongue returns to its original position, achieving the retention of the wire harness between the circuit board and the tongue 2.
The method of forming the above-described groove 1 may be, for example, a process of punching, cutting, or dicing, as examples, the conductive traces of the circuit board are arranged in the region of the circuit board other than the tab to prevent damage to the conductive traces due to bending during cutting of the conductive traces or positioning of the wire harness when the groove is formed.
The structure of the present invention is described below in terms of various embodiments, however, it will be understood by those skilled in the art that the structures described in the various embodiments can be freely combined without conflict in structure or principle, thereby realizing more various circuit boards on the basis of solving the technical problems of the present invention.
A circuit board 10 according to an th embodiment of the present invention is shown in fig. 1-4, in which the th and second sub-grooves 11 and 12 are configured to be open toward the edge of the circuit board so that the tongue is formed at the position of the edge of the circuit board, the number of the tongues shown in the embodiment is , however, it will be understood by those skilled in the art that the tongues may be two or more depending on the number of wire harnesses to be fixed, and that the same tongues may be used to fix a plurality of different wire harnesses.
As shown in fig. 2 and 3, the width of the th sub-groove 11 is suitable for accommodating the wiring harness, so that the wiring harness 20 can penetrate into the circuit board through the th sub-groove 11, and the width of the th sub-groove 12 formed on the other side of the tongue piece is suitable for accommodating the wiring harness, so that the wiring harness 20 passes through the circuit board through the second sub-groove 12, and the wiring harness is limited between the tongue piece 2 and the circuit board by bypassing the tongue piece.
As examples, in order to prevent steps from sliding the wiring harness 20 out of the th subslot 11 and the second subslot 12, the free end of the tongue is provided with two tongue protrusions 22, and the two tongue protrusions 22 extend toward the th subslot 11 and the second subslot 12, respectively, so as to limit the wiring harness from moving out of the th subslot 11 and the second subslot 12.
, sub-groove protrusions 101 are respectively disposed at edges of the sub-groove 11 and the second sub-groove 12 opposite to the tongue to cooperate with the tongue protrusion 22 to restrict the wire harness 20 from being removed from the sub-groove 11 and the second sub-groove 12.
In the embodiment shown in fig. 2-4, tab projections are shown formed on both the tab 2 and the slot 11, 12 at the edge opposite the tab, with each two opposing tab projections 22, 101 cooperating to limit the removal of the wiring harness from the th sub-slot 11 or the second sub-slot 12, however, tab projections may alternatively be formed only on the tab 2 or only at the edge of the th sub-slot 11 or the second sub-slot 12 opposite the tab, that is, only on a single side of the th sub-slot 11 and/or the second sub-slot 12, so long as the tab projections have a projection height that ensures that the wiring harness cannot pass through.
In fig. 5, a circuit board 10 'according to a second embodiment of the present invention is shown, compared to the circuit board 10 shown in fig. 1-4, the main difference of the lighting and/or signaling device 10' is that a slot 1 is configured as a closed slot, and herein, a tongue piece 2 is formed inside the circuit board, as examples, a third sub-slot 13 is further formed in the circuit board, the third sub-slot 13 is configured to communicate the sub-slot 11 with the second sub-slot 12 to form a closed slot, and the tongue piece 2 is formed inside the circuit board, and likewise, it will be understood by those skilled in the art that the shape of the slot 1 is not limited thereto, and may be various other shapes as long as a deformable tongue piece 2 can be defined, and that two or more tongue pieces 2 may be formed inside the circuit board, or tongue pieces 2 may be formed both inside and at the edge of the circuit board, as desired.
In this second embodiment, too, tongue tab 22 and/or sub-groove tab 101 can be provided at the relevant points of tongue 2 and/or of -th sub-groove 11, of second sub-groove 12.
Fig. 6 shows a circuit board 10 "according to a third exemplary embodiment of the invention, which differs from the circuit board 10 shown in fig. 1 to 4 primarily in the structure of the grooves on both sides of the tongue 2, the tongue 2 is still formed by forming the groove 1, as shown in fig. 6, however, the groove widths of the -11 and the second 12 sub-groove on both sides of the tongue 2 are smaller compared to fig. 2 to 4, as long as the tongue is separated from the rest of the circuit board, since in the exemplary embodiment of fig. 6 the wire bundle accommodation 111 is further formed at the edge of the -sub-groove 11, which penetrates into the -sub-groove 1 via the wire bundle accommodation 111, the size of the wire bundle accommodation 111 being adapted to the diameter of the wire bundle to limit the wire bundle at the step , as an example, the edge of the second sub-groove 12 also further forms the wire bundle accommodation 111, which penetrates out of the second sub-groove 12 via the wire bundle accommodation 111, which does not require to form a large extent the wiring area of the second sub-groove 12 or the wiring area of the circuit board 5911, which affects the wiring area of the circuit board, for example, or the area of the wiring board 5911.
In the embodiment shown in fig. 6, the wire harness accommodating portion 111 is formed at the edge of each of the th sub-groove 11 and the second sub-groove 12, however, it is understood by those skilled in the art that the wire harness accommodating portion 111 may be provided only at the side of the tongue piece, for example, at the edge of the th sub-groove 11, so that the wire harness enters the th sub-groove 11 from the wire harness accommodating portion 111, while the other side of the tongue piece is provided with the second sub-groove 12 having a width matching the size of the wire harness so that the wire harness can pass out of the circuit board via the second sub-groove 12.
With regard to the structure of the wire harness accommodating portion having a size matching the diameter of the wire harness, in the embodiment shown in fig. 6, the wire harness accommodating portion 111 is composed of a -th accommodating portion 1111 formed on the tongue and a second accommodating portion 1112 formed on the edge of the -th sub-groove 11 opposite to the tongue 2, the wire harness accommodating portion 111 at the second sub-groove 12 is composed of a -th accommodating portion 1111 formed on the tongue and a second accommodating portion 1112 formed on the edge of the second sub-groove 12 opposite to the tongue 2, however, it will be understood by those skilled in the art that the wire harness accommodating portion 111 may have other structures as well, for example, the wire harness accommodating portion 111 may be formed only on the tongue 2 or on the -th sub-groove and/or the edge of the second sub-groove opposite to the tongue 2 as long as the size matches the diameter of the wire harness, it will be understood by those skilled in the art that it may at least accommodate the wire harness so that the wire harness can pass therethrough, may also be brought into contact with the outer diameter of the wire harness accommodating portion to restrict the wire harness.
In the embodiment shown in fig. 6, the wire harness accommodating portion 111 is composed of two semicircular-like half grooves, however, in other examples, a square-shaped half groove, an arc-shaped half groove, or the like may be employed, and thus, the wire harness accommodating portion 111 may be provided only on edges.
, in order to better limit the wire harness, as shown in fig. 6, a protection member 50 can be provided in the wire harness accommodating part 111 to separate the wire harness 20 from the wall of the wire harness accommodating part 111. the protection member 50 can be made of a common protection material such as rubber gasket, etc. by this means, not only the movement of the wire harness can be better limited, but also the friction between the wire harness accommodating part 111 and the wire harness 20 can be avoided, and the breakage of the wire harness can be avoided.
It will be understood by those skilled in the art that guards may also be provided in the th sub-groove 11 and the second sub-groove 12 in the th embodiment shown in fig. 2 to 4 and the second embodiment shown in fig. 5 to prevent damage to the wiring harness 20, as an example of , a guard may also be provided only in the th sub-groove 11 or the second sub-groove 12.
As examples, rounded corners may be formed at corners of the sub-groove 11, the second sub-groove 12, and the wire harness accommodating part 111 (if the wire harness accommodating part is square-shaped), so as to avoid breakage of the wire harness caused by friction when the wire harness moves or twists in these grooves.
Embodiments of the present invention also provide lighting and/or signaling devices for a motor vehicle, such as a signal light, front light, or rear light of a vehicle.
Embodiments of the present invention also provide motor vehicles having lighting and/or signaling devices according to the examples described above.
In the circuit board obtained by adopting the or the combination and modification of the features based on the above-described embodiments, since the deformable tongue piece for limiting the harness is formed on the circuit board itself, the effective limitation of the harness can be realized without an additional harness limiting structure, the damage of the harness is avoided, the cost and the occupied space are saved, and the separation of the harness from the circuit board is avoided.
Although the present invention has been described in connection with the accompanying drawings, the embodiments disclosed in the drawings are intended to be illustrative of the preferred embodiments of the present invention and should not be construed as limitations of the present invention.
Although embodiments of the present general inventive concept have been shown and described, it will be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the general inventive concept, the scope of which is defined in the appended claims and their equivalents.
Claims (15)
1, kinds of circuit boards, wherein,
the circuit board has a slot (1) formed therein, the slot (1) defining a deformable tongue (2), the slot (1) comprising:
a th subslot (11) on the th side of the tongue (2), and
a second subslot (12) located on a second side of the tongue (2) opposite the th side;
wherein the deformable tongue (2) is configured to press against a wire harness (20) passing in from of the th sub-groove (11) and the second sub-groove (12) and out from the other of the th sub-groove (11) and the second sub-groove (12) to achieve a limit of the wire harness (20).
2. The circuit board of claim 1, wherein edges of at least of the th sub-groove (11), the second sub-groove (12), and the tongue (2) are formed with a wire harness accommodating portion (111), and a size of the wire harness accommodating portion (111) is adapted to a diameter of the wire harness (20).
3. The circuit board of claim 1, wherein the widths of the th and second subslots (11, 12) are matched to the wiring harness (20).
4. A circuit board according to claim 3, wherein the free end of the tongue (2) is provided with a tongue projection (22), which tongue projection (22) extends transversely to the extension direction of the tongue (2).
5. A circuit board according to claim 3, wherein the th subslot (11) and/or the second subslot (12) is provided with a subslot projection (101), the subslot projection (101) extending transversely to the extension direction of the subslot.
6. A circuit board according to claim 3, wherein the free end of the tongue (2) is provided with a tongue protrusion (22), and the th sub-groove (11) and/or the second sub-groove (12) is provided with a sub-groove protrusion (101), the tongue protrusion (22) and the sub-groove protrusion (101) cooperating.
7. The circuit board of of any of claims 1-6, wherein the subslot (11) and the second subslot (12) are open to an edge of the circuit board.
8. The circuit board of of any of claims 1-6, wherein the circuit board further has a third sub-slot (13) formed therein, the third sub-slot (13) communicating the sub-slot (11) and the second sub-slot (12) such that the tongue (2) is formed inside the circuit board.
9. The circuit board according to of any of claims 1-6, wherein the tongue (2) is arranged in a region of the circuit board without conductive tracks.
10. Circuit board according to of any of claims 1 to 6, wherein the slot (1) is provided with a guard (50).
11. The circuit board according to claim 2, wherein the circuit board is provided with a plurality of harness receiving portions (111).
12. The circuit board according to claim 2, wherein the wire harness receiving portion (111) is composed of an -th receiving portion (1111) formed on the tongue and a second receiving portion (1112) formed on an edge of the -th sub-groove (11) opposite to the tongue (2) in common.
13. The circuit board of claim 2, wherein the wire harness receiving portion (111) is formed on an edge of the tongue piece or the sub-groove.
14, lighting and/or signalling device comprising at least circuit boards according to any of claims 1-13 under .
A motor vehicle of 15, comprising at least circuit boards according to any of claims 1-13 to or lighting and/or signalling devices according to claim 14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810801555.4A CN110733438A (en) | 2018-07-19 | 2018-07-19 | Circuit board, lighting and/or signalling device and motor vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810801555.4A CN110733438A (en) | 2018-07-19 | 2018-07-19 | Circuit board, lighting and/or signalling device and motor vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110733438A true CN110733438A (en) | 2020-01-31 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810801555.4A Pending CN110733438A (en) | 2018-07-19 | 2018-07-19 | Circuit board, lighting and/or signalling device and motor vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110733438A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1625006A (en) * | 2003-12-01 | 2005-06-08 | 矢崎总业株式会社 | Electric wire holding structure of protector |
| US20060048346A1 (en) * | 2004-09-08 | 2006-03-09 | Fuji Photo Film Co., Ltd. | Cable holder |
| CN102138262A (en) * | 2008-08-29 | 2011-07-27 | 矢崎总业株式会社 | Wire harness routing structure |
| WO2012127723A1 (en) * | 2011-03-23 | 2012-09-27 | 住友電装株式会社 | Door wiring device |
| US20130145582A1 (en) * | 2011-12-09 | 2013-06-13 | Todd M. Chupp | Rope Locking Device |
| CN203402099U (en) * | 2013-08-07 | 2014-01-22 | 北汽福田汽车股份有限公司 | Wire groove structure for fixing vehicle wiring harness and vehicle with same |
| CN207031784U (en) * | 2017-06-26 | 2018-02-23 | 青岛海尔洗衣机有限公司 | Circuit board assemblies and washing machine for washing machine |
-
2018
- 2018-07-19 CN CN201810801555.4A patent/CN110733438A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1625006A (en) * | 2003-12-01 | 2005-06-08 | 矢崎总业株式会社 | Electric wire holding structure of protector |
| US20060048346A1 (en) * | 2004-09-08 | 2006-03-09 | Fuji Photo Film Co., Ltd. | Cable holder |
| CN102138262A (en) * | 2008-08-29 | 2011-07-27 | 矢崎总业株式会社 | Wire harness routing structure |
| WO2012127723A1 (en) * | 2011-03-23 | 2012-09-27 | 住友電装株式会社 | Door wiring device |
| US20130145582A1 (en) * | 2011-12-09 | 2013-06-13 | Todd M. Chupp | Rope Locking Device |
| CN203402099U (en) * | 2013-08-07 | 2014-01-22 | 北汽福田汽车股份有限公司 | Wire groove structure for fixing vehicle wiring harness and vehicle with same |
| CN207031784U (en) * | 2017-06-26 | 2018-02-23 | 青岛海尔洗衣机有限公司 | Circuit board assemblies and washing machine for washing machine |
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Application publication date: 20200131 |