CN213360670U

CN213360670U - Fastener and vehicle-mounted power supply

Info

Publication number: CN213360670U
Application number: CN202021397663.9U
Authority: CN
Inventors: 袁慧娟; 李竹君; 吴壬华
Original assignee: Shenzhen Shinry Technologies Co Ltd
Current assignee: Shenzhen Shinry Technologies Co Ltd
Priority date: 2020-07-15
Filing date: 2020-07-15
Publication date: 2021-06-04
Anticipated expiration: 2030-07-15

Abstract

The utility model provides a fastener, which comprises a fixed plate, an installation part and a nut; the fixing plate is used for fixing the fastener on other components; the fixing plate is used for bearing the mounting part; the nut is embedded in the mounting part; the nut is provided with internal threads. The utility model discloses a fastener fastening nature is good, can be suitable for not unidimensional screw rod. The utility model also provides a vehicle mounted power.

Description

Fastener and vehicle-mounted power supply

Technical Field

The utility model relates to a fixed part field, concretely relates to fastener and vehicle mounted power.

Background

Copper bars (namely copper buses) are indispensable conductive materials for manufacturing motor windings, high-voltage and low-voltage electrical appliances, switch contacts, wires for power supply and distribution installation and the like. The copper bar has high mechanical performance, good electrical conductivity and thermal conductivity, excellent corrosion resistance, electroplating property and brazing property, beautiful metal luster, good forming processability and the like, so the copper bar is widely applied to various power transmission and transformation, electrical equipment, vehicle-mounted power supplies and the like in the electric power field. The copper bars are required to be used for connecting the circuit board in the vehicle-mounted power supply, and whether the plurality of copper bars are connected stably or not is the direct relation between the quality of the vehicle-mounted power supply and the stability of power supply. The existing fastener for fixing the copper bar is not a general standard part generally, is large in size and poor in universality, and needs to be provided with fasteners of different sizes aiming at different scenes, so that the cost is high.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is desirable to provide a fastener which has good fastening performance and can be applied to screws with different sizes.

A fastener comprises a fixing plate, an installation part and a nut; the fixing plate is used for fixing the fastener on other components; the fixing plate is used for bearing the mounting part; the nut is embedded in the mounting part; the nut is provided with internal threads.

Furthermore, the fixing plate comprises a fixing body and an extending part extending from the fixing body, the fixing body is used for bearing the mounting part, and the extending part is provided with a mounting hole and a positioning hole.

Furthermore, the fixed plate includes fixed body and two at least extensions, the extension is certainly fixed body is outside to be extended, fixed body is used for bearing the installation department, two at least the extension interval sets up around fixed body, be equipped with at least one mounting hole on the extension.

Further, a metal gasket is arranged in the mounting hole.

Further, the fixed plate is perpendicular to the central axis of the installation part.

Further, the installation department is equipped with the internal thread, the nut is equipped with the external screw thread, the internal thread of installation department with the external screw thread of nut meshes mutually.

Furthermore, the hollow structure of the mounting part is a polygonal structure, the periphery of the nut is a corresponding polygonal structure, and the nut is arranged in the mounting part and abuts against the mounting part.

Furthermore, the inner wall of the mounting part is cylindrical, and at least two grooves are formed in the inner wall of the mounting part; the periphery of the nut is cylindrical, and at least two convex blocks are arranged at the positions, corresponding to the grooves, of the periphery of the nut; when the nut is located in the mounting portion, the projection is embedded in the groove.

Furthermore, the inner wall of the mounting part is cylindrical, and at least two lugs are arranged on the inner wall of the mounting part; the periphery of the nut is cylindrical, and at least two grooves are formed in the periphery of the nut corresponding to the bumps; when the nut is located in the mounting portion, the projection is embedded in the groove.

The utility model also provides a vehicle-mounted power supply, which comprises a shell, a PCBA board, a copper bar and the fastener; the PCBA board, the copper bar and the fastener are positioned in the shell; the copper bar is used for connecting two PCBA boards, the copper bar with the junction of PCBA board passes through the fastener is fixed.

Therefore, the fastener of the utility model comprises a fixing plate, an installation part and a nut; the fixing plate is used for fixing the fastener on other components; the fixing plate is used for bearing the mounting part; the nut is embedded in the mounting part; the nut is provided with internal threads. The utility model discloses a fastener fastening nature is good, can be suitable for not unidimensional screw rod.

Drawings

To more clearly illustrate the structural features and effects of the present invention, the following detailed description is given with reference to the accompanying drawings and specific embodiments.

Fig. 1 is a schematic structural view of a fastener according to an embodiment of the present invention.

Figure 2 is a top view of the fastener of the embodiment of figure 1 of the present invention.

Fig. 3 is a schematic structural view of a fastener according to yet another embodiment of the present invention.

Figure 4 is a bottom view of the fastener of the embodiment of figure 3 of the present invention.

Fig. 5 is a schematic structural view of a fastener according to yet another embodiment of the present invention.

Fig. 6 is a schematic structural view of a fastener according to yet another embodiment of the present invention.

Fig. 7 is a schematic structural view of a fastener according to yet another embodiment of the present invention.

Fig. 8 is a partial schematic structural diagram of the vehicle-mounted power supply according to the embodiment of the present invention.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall fall within the protection scope of the present invention.

The copper bar is also called copper bus bar, which is an indispensable conductive material for manufacturing motor windings, high and low voltage electrical appliances, switch contacts, wires for power supply and distribution installation and the like.

Referring to fig. 1, a fastener 100 according to an embodiment of the present invention is used to cooperate with a screw to connect and fix at least two separate components, for example, two copper bars for connecting a Printed Circuit Board (PCBA Board), and the fastener includes a fixing plate 10, an installation portion 30, and a nut 50. The fastening plate 10 is used to secure the fastener 100 to other components. The fixing plate 10 is used to carry the mounting portion 30. The mounting portion 30 is a hollow structure, and the nut 50 is disposed in the hollow structure and abuts against the mounting portion 30, i.e., the nut 50 is embedded in the mounting portion 30. The nut 50 is provided with an internal thread. The internal thread is used for meshing with the screw thread of screw rod mutually, fixes components and parts.

The utility model discloses a fastener 100 fastening nature is good, can make general standard component. In addition, a plurality of nuts 50 with the same outer diameter and different inner diameters can be arranged, and the nuts 50 with proper sizes can be selected according to the sizes of the screws, so that the fastener 100 is suitable for the screws with different sizes.

In some embodiments, the fixation plate 10 is disposed perpendicular to the central axis of the cylinder 30. The fixing plate 10 and the mounting part 30 are integrally formed, so that the process can be simplified.

In some embodiments, the fixation plate 10 and mounting portion 30 are made of plastic, which may provide insulation to the fastener 100. In other embodiments, when insulation is not required, the fastening plate 10 and the mounting portion 30 may be made of a non-insulating material, such as a metal material, in which case the fastener 100 has a longer service life.

Referring to fig. 3 and 4, in some embodiments, the fixing plate 10 includes a fixing body 11 and an extending portion 13 extending from the fixing body, the fixing body 11 is used for carrying the mounting portion 30, and the extending portion 13 is provided with a mounting hole 131 and a positioning hole 133. The mounting holes 131 are used to secure the fastener 100 to other components. The positioning hole 133 is used to limit the fastener 100 and prevent the fastener 100 from rotating around the mounting hole 131. More specifically, the positioning hole 133 may be limited by a bump or may be fixed by a screw. When the fixing plate 10 has only one extension 13, the volume of the fastener 100 can be reduced, and the installation space can be saved. In the embodiment of fig. 3 and 4, two positioning holes 133 are provided on the extension 13.

Referring to fig. 1 and 2, in some embodiments, the fixing plate 10 includes a fixing body 11 and at least two extending portions 13, the extending portions 13 extend outward from the fixing body 11, the fixing body 11 is used for carrying the mounting portion 30, the at least two extending portions 13 are disposed around the fixing body 11 at intervals, and the extending portions 13 are provided with at least one mounting hole 131. In the embodiment of fig. 1 and 2, the fixing plate 10 includes a fixing body 11 and two extending portions 13, the fixing body 11 is used for carrying the mounting portion 30, the extending portions 13 are oppositely disposed on two sides of the fixing body 11, and each extending portion 13 is provided with a mounting hole 131.

Referring to fig. 1, in some embodiments, fastener 100 further includes a connector 70. The connecting member 70 is used to connect the extension 131 of the fixing plate 10 and the side of the mounting part 30. In this embodiment, each of the extensions 131 may be connected to the side of the mounting part 30 by two connection members 70.

Referring to fig. 1, in some embodiments, a metal gasket 1311 is disposed in the mounting hole 131. Metal washer 1311 may increase the locking force of the screw fixation and increase the stability of the installation of fastener 100.

Referring to fig. 1 and 2, in some embodiments, the mounting portion 30 has internal threads 31 and the nut 50 has external threads 51, wherein the internal threads of the mounting portion 30 engage the external threads of the nut 50 to prevent relative rotation between the mounting portion 30 and the nut 50 during use. When the mounting portion 30 and the nut 50 are geared together, relative rotation between the mounting portion 30 and the nut 50 is better prevented.

Referring to fig. 5, in other embodiments, the hollow structure of the mounting portion 30 is a polygonal structure, such as a quadrangle, a pentagon, a hexagon, or an octagon. Accordingly, the outer circumference of the nut 50 has a corresponding polygonal structure, and the nut 50 is disposed in the mounting portion 30 to abut against the mounting portion 30. During installation, the nut 50 is screwed with the screw, and the installation part 30 and the nut 50 do not move relatively due to the limit of the polygonal structure. In the embodiment of fig. 5, the hollow structure of the mounting portion 30 is a regular hexagon, and the outer circumference of the nut 50 is a regular hexagon.

Referring to fig. 6, in other embodiments, the inner wall of the mounting portion 30 is cylindrical, at least two grooves 33 are formed on the inner wall of the mounting portion 30, the outer circumference of the nut 50 is cylindrical, and at least two protrusions 53 are formed on the outer circumference of the nut 50 corresponding to the grooves 33. When the nut 50 is positioned in the mounting portion 30, the projection 53 is inserted into the groove 33. The projections 53 engage the recesses 33 to prevent relative rotation of the nut 50 and the body 30. In one embodiment, at least two grooves 30 are equally spaced on the inner wall of the mounting portion 30, and at least two protrusions 50 are equally spaced on the outer circumference of the nut 50 at positions corresponding to the grooves.

Referring to fig. 7, in another embodiment, the inner wall of the mounting portion 30 is cylindrical, at least two protrusions 53 are disposed on the inner wall of the mounting portion 30, the outer circumference of the nut 50 is cylindrical, and at least two grooves 33 are disposed on the outer circumference of the nut 50 corresponding to the protrusions 53. When the nut 50 is positioned in the mounting portion 30, the projection 53 is inserted into the groove 33. The projections 53 engage the recesses 33 to prevent relative rotation of the nut 50 and the body 30.

In some embodiments, the nut 50 is made of a conductive metal material, so that when the nut is used for fixing the copper bar, the resistance of the connection part can be effectively reduced. In the present embodiment, the nut 50 is made of copper, which has good conductivity and can effectively reduce the resistance at the joint of the copper bar.

Referring to fig. 8, the present invention further provides an onboard power supply 200, which includes a housing 220, a Printed Circuit board (PCBA board) 210, a copper bar 230, and the fastener 100. The PCBA board 210, copper bars 230, and fasteners 100 are located within the housing 220. The fastener 100 is used to fasten the copper bar 230 to the PCBA board 210. More specifically, the copper bar 230 is used to connect two PCBA boards 210, and the connection between the copper bar 230 and the PCBA boards 210 is fixed by the fastener 100.

A vehicle-mounted power supply, also called a power supply inverter, is a convenient power supply converter which can convert DC12V direct current into AC220V alternating current which is the same as commercial power and is used by general electric appliances.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope of the present invention, and these modifications or replacements should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A fastener is characterized by comprising a fixing plate, an installation part and a nut; the fixing plate is used for fixing the fastener on other components; the fixing plate is used for bearing the mounting part; the nut is embedded in the mounting part; the nut is provided with internal threads.

2. The fastener of claim 1, wherein the fixing plate comprises a fixing body and an extension portion extending from the fixing body, the fixing body is used for bearing the installation portion, and the extension portion is provided with an installation hole and a positioning hole.

3. The fastener of claim 1, wherein the fixing plate includes a fixing body and at least two extending portions, the extending portions extend outward from the fixing body, the fixing body is used for carrying the mounting portion, the at least two extending portions are spaced around the fixing body, and the extending portions are provided with at least one mounting hole.

4. A fastener according to claim 2 or 3, wherein a metal washer is provided in the mounting hole.

5. The fastener of claim 1, wherein the retaining plate is disposed perpendicular to the central axis of the mounting portion.

6. The fastener of claim 1, wherein the mounting portion is internally threaded and the nut is externally threaded, the internal threads of the mounting portion engaging the external threads of the nut.

7. The fastener of claim 1, wherein the hollow structure of the mounting portion is a polygonal structure, the outer periphery of the nut is a corresponding polygonal structure, and the nut is arranged in the mounting portion and abuts against the mounting portion.

8. The fastener of claim 1, wherein the mounting portion inner wall is cylindrical and is provided with at least two grooves; the periphery of the nut is cylindrical, and at least two convex blocks are arranged at the positions, corresponding to the grooves, of the periphery of the nut; when the nut is located in the mounting portion, the projection is embedded in the groove.

9. The fastener of claim 1, wherein the mounting portion inner wall is cylindrical and has at least two protrusions disposed thereon; the periphery of the nut is cylindrical, and at least two grooves are formed in the periphery of the nut corresponding to the bumps; when the nut is located in the mounting portion, the projection is embedded in the groove.

10. An onboard power supply, comprising a housing, a PCBA board, a copper bar, and the fastener of any of claims 1-9; the PCBA board, the copper bar and the fastener are positioned in the shell; the copper bar is used for connecting two PCBA boards, the copper bar with the junction of PCBA board passes through the fastener is fixed.