CN206596314U - The fixed support structure of circuit board and the support member of circuit board - Google Patents

Abstract

The utility model provides a fixed supporting structure of a circuit board and a supporting part of the circuit board. The fixed support structure of the circuit board includes: a support piece, a mounting sheet metal and a circuit board, the support piece includes a hollow cylinder, a limit opening formed on the side wall of the cylinder and passing through its lower end surface, and a limit opening formed at the limit opening The guide parts on both sides and the limit card formed on the guide part; the installation sheet metal is provided with a limit slot matching the shape of the guide part, and the guide part is inserted into the limit slot, and the limit card and the limit slot The clamping fit and the limit opening are in contact with the upper surface of the mounting sheet metal; the circuit board is supported on the support and is firmly connected with the mounting sheet metal through the fastener. This technical scheme has obvious positioning features, and the limit card and limit port completely restrict the freedom of the support; then the circuit board is fixed and supported on the support by fasteners, with accurate positioning, convenient assembly, and high installation efficiency; maintenance The circuit board can be removed by simply removing a few bolts, without removing the support.

Description

Fixed support structure for circuit board and support for circuit board

technical field

The utility model relates to the field of circuit board installation, more specifically, to a fixed support structure for a circuit board and a support for the circuit board.

Background technique

At present, there are mainly two ways to fix the circuit board on the electric control box: one is to use screws to nail the circuit board to the sheet metal, and the other is to fix the circuit board to the sheet metal by printing supports. However, when the circuit board is fixed by screws, two plastic spacer columns are usually used, which is complicated to operate and affects production efficiency; when the circuit board is fixed by a printed circuit board, the processing of the printed support is difficult and the production cost is high, which affects production efficiency; At the same time, the above two methods are not convenient for the after-sales maintenance of the circuit board.

Utility model content

The utility model aims at at least solving one of the technical problems existing in the prior art.

Therefore, an object of an aspect of the present invention is to provide a fixed support structure for a circuit board.

The purpose of another aspect of the present invention is to provide a support for a circuit board.

In order to achieve the above purpose, the technical solution of one aspect of the present invention provides a fixed support structure for circuit boards, including: a support, including a hollow cylinder, formed on the side wall of the cylinder and passing through it The limit opening on the end face, the guide parts formed on both sides of the limit opening, and the limit card formed on the guide part; the installation sheet metal, which is provided with a hole that matches the shape of the guide part A limit slot, the guide part is inserted into the limit slot, the limit card is clamped with the limit slot, and the limit port is in contact with the upper surface of the installation sheet metal; and The circuit board is supported on the supporting member, and is fastened to the installation sheet metal through a fastener.

In the fixed support structure of the circuit board provided by the above technical solution of the utility model, the positioning features on the support are obvious. When the support is installed on the installation sheet metal, it is only necessary to align the guide part on the support and put it into the installation sheet metal. Press the support piece inward until the limit card on the support piece snaps into the limit slot on the installation sheet metal, at this time the limit opening on the support piece contacts and presses the upper surface of the installation sheet metal Tight, the limit card and the limit port completely constrain the degree of freedom of the support, so that the support can be firmly installed on the mounting sheet metal; then the circuit board is supported on the support, and through fasteners (such as bolts) ) pass through the support and securely connect with the mounting sheet metal to realize the stable installation of the circuit board on the mounting sheet metal. The structure is simple, the positioning is accurate, and the installation efficiency is high; only a few fasteners need to be removed during maintenance. circuit board without removing the support for easy maintenance.

In addition, the fixed support structure of the circuit board provided by the above technical solution of the utility model also has the following additional technical features:

In the above technical solution, the support member further includes: a communication groove formed on the side wall of the column and surrounding the two sides and the bottom of the limit card, so that the limit card can be relatively The cylinder is elastically deformed.

On the side wall of the cylinder, there are communication grooves surrounding the two sides and the bottom of the limit card. The setting of the communication groove can increase the elasticity of the limit card, so that when the guide part of the support is inserted into the limit groove, The card can be elastically deformed inward along the radial direction of the cylinder (such as a cylinder), so that the limiting card can be smoothly inserted into the limiting groove.

In the above technical solution, the support member further includes: a boss formed on the upper end surface of the cylinder, a fixing hole corresponding to the boss is opened on the circuit board, and the circuit board is supported on The step surface formed between the boss and the cylinder.

When installing the circuit board, you only need to align the fixing hole on the circuit board with the boss on the support, and insert the boss into the fixing hole to realize the positioning and support of the circuit board on the support, which is convenient for further screwing. The bolt process has obvious positioning features and high installation efficiency.

In the above technical solution, the fasteners include bolts and rivet nuts, the bosses are provided with through threaded holes, the mounting plate is provided with rivet nut holes, and the rivet nuts are installed on the rivet nuts. In the nut hole, the bolt passes through the threaded hole and is tightly connected with the riveting nut.

There are rivet nuts riveted on the mounting sheet metal, and the bolts pass through the threaded holes on the support and are tightly connected with the rivet nuts on the mounting sheet metal, so as to support the circuit board on the support and fix it on the mounting sheet metal , the structure is simple, and the assembly is firm; those skilled in the art should understand that in order to realize the fixing of the circuit board on the mounting sheet metal, the size of the nut of the bolt should be larger than the size of the fixing hole on the circuit board, that is, to ensure that part of the lower end surface of the nut Press down on the top surface of the circuit board.

In the above technical solution, the fastener includes a self-tapping screw, the boss is provided with a through threaded hole, the mounting sheet metal is provided with a flanging hole, and the self-tapping screw passes through the threaded hole. The hole is firmly connected with the flange hole.

In the above technical solution, the fasteners include bolts and butt-welding nuts, the butt-welding nuts are welded on the mounting sheet metal, the bosses are provided with threaded holes through which the bolts go through the The threaded hole is tightly connected with the butt weld nut.

In addition to using bolts and riveting nuts to fix the circuit board, self-tapping screws can also be used to fix the circuit board. This technical solution can directly process the flanging holes on the installation sheet metal without fixing the bolts on the installation sheet metal. The matching nut further simplifies the installation process, makes the installation operation of the circuit board easier, and further improves production efficiency; of course, welding can also be used to fix the butt-welding nut on the installation sheet metal, and the circuit board can be fixed through the cooperation of the bolt and the butt-welding nut .

In the above technical solution, the height of the boss is less than or equal to the thickness of the circuit board.

Preferably, the height of the boss is designed to be slightly smaller than the thickness of the circuit board, so as to provide more effective fixing constraints for the circuit board, so as to ensure that the part of the lower end surface of the nut of the bolt (or the nut of the self-tapping screw) is pressed against the surface of the circuit board. upper surface.

In the above technical solution, the shape of the opening of the limiting groove is circular arc, square or rectangular; or, the column is cylindrical, square or polygonal.

The opening shape of the limit slot is designed to be arc-shaped, the positioning features are more obvious, and it is easy to assemble; when the opening shape of the limit slot is designed to be square or other regular shapes, it is more convenient for CNC machining and saves mold development costs; of course, The columnar shape of the support is not limited to the above-mentioned cylindrical, quadrangular prism or polygonal prism, and can be designed according to the actual situation.

In any of the above technical solutions, there are multiple supports, and the circuit board is supported on multiple supports.

In the above technical solution, the number of the support members is four, and the four support members respectively support the four corners of the circuit board.

The circuit board is supported by a plurality of supports to ensure the stability of the fixed support of the circuit board on the installation sheet metal; preferably, four supports are used to respectively support the four corners of the circuit board to realize the fixed support of the circuit board.

The technical solution of another aspect of the present invention provides a support for a circuit board, comprising: a hollow cylinder, a limiting opening formed on the side wall of the cylinder and penetrating through its lower end surface, guide parts on both sides of the limit opening, and limit cards formed on the guide parts.

In the above technical solution, the support of the circuit board further includes: a communication groove formed on the side wall of the column and surrounding the two sides and the bottom of the limit card, so that the limit card The bit card can be elastically deformed relative to the cylinder.

In the above technical solution, the supporting member of the circuit board further includes: a boss formed on the upper end surface of the column, and a boss for supporting the circuit board is formed between the boss and the column. The stepped surface of the boss is provided with a through threaded hole.

Additional aspects and advantages of the invention will become apparent in the description which follows, or may be learned by practice of the invention.

Description of drawings

The above and/or additional aspects and advantages of the present utility model will become apparent and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

Fig. 1 is a schematic diagram of an assembly structure of a circuit board, a support member, and a mounting sheet metal described in an embodiment of the present invention;

Fig. 2 is a schematic cross-sectional structure diagram of A-A direction in Fig. 1;

Fig. 3 is a top view structural schematic diagram of Fig. 1;

Fig. 4 is a schematic diagram of the three-dimensional structure of the support in Fig. 1;

Fig. 5 is a schematic diagram of the front view of Fig. 4;

Fig. 6 is a schematic bottom view of Fig. 4;

Fig. 7 is a schematic cross-sectional structure diagram of B-B direction in Fig. 6;

FIG. 8 is a schematic top view of the mounting sheet metal in FIG. 1 .

Wherein, the corresponding relationship between reference numerals and component names in Fig. 1 to Fig. 8 is:

10 circuit board, 101 fixing hole, 20 mounting sheet metal, 201 limit slot, 202 rivet nut hole, 30 support piece, 301 cylinder, 302 limit port, 303 guide part, 304 limit card, 305 communication slot, 306 Boss, 307 threaded holes, 40 bolts, 50 riveting nuts.

detailed description

In order to more clearly understand the above purpose, features and advantages of the utility model, the utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

In the following description, a lot of specific details are set forth in order to fully understand the utility model, but the utility model can also be implemented in other ways different from those described here, therefore, the protection scope of the utility model is not limited by the following disclosure limitations of specific examples.

The fixed support structure of the circuit board and the support member of the circuit board according to some embodiments of the present invention will be described below with reference to FIGS. 1 to 8 .

As shown in FIGS. 1 to 3 , an embodiment of an aspect of the present invention provides a fixed support structure for a circuit board, including: a support 30 , a mounting sheet metal 20 , a circuit board 10 and fasteners.

Specifically, the support member 30 includes a hollow cylinder 301, a limit opening 302 formed on the side wall of the cylinder 301 and passing through its lower end surface, a guide portion 303 formed on both sides of the limit opening 302, and a guide portion 303 formed on the guide. The limit card 304 on the part 303; the limit slot 201 matching the shape of the guide part 303 is provided on the installation sheet metal 20, the guide part 303 is inserted into the limit slot 201, and the limit card 304 and the limit slot 201 are locked. Tight fit, the limit opening 302 is in contact with the upper surface of the installation sheet metal 20; the circuit board 10 is supported on the support member 30, and is fastened to the installation sheet metal 20 through fasteners.

In the fixed support structure of the circuit board provided by the above-mentioned embodiments of the utility model, the positioning features on the support member 30 are obvious. When installing the support member 30 on the installation sheet metal 20, it is only necessary to align the guide part 303 on the support member 30 and Put it into the limit groove 201 on the installation sheet metal 20, and press the support member 30 inward until the limit card 304 on the support member 30 snaps into the limit groove 201 on the installation sheet metal 20. At this time, the support member 30 The limiting opening 302 of the mounting plate 20 is in contact with the upper surface of the mounting sheet metal 20, and the limiting card 304 and the limiting opening 302 completely constrain the degree of freedom of the support 30, so that the support 30 can be firmly installed on the mounting sheet 20. Then the circuit board 10 is supported on the support member 30, and the support member 30 is fastened to the installation sheet metal 20 through the fastener (such as a bolt), so that the circuit board 10 is firmly installed on the installation sheet metal 20 In addition, the structure is simple, the positioning is accurate, and the installation efficiency is high; the circuit board 10 can be removed only by removing a few fasteners during maintenance, without removing the support member 30, and the maintenance is convenient.

In one embodiment of the present invention, as shown in FIG. 1 , the support member 30 further includes: a communication groove 305 formed on the side wall of the cylinder 301 and surrounding the two sides and the bottom of the limit card 304, so as to The limit card 304 can be elastically deformed relative to the cylinder 301 .

On the side wall of the cylinder 301, there is a communication groove 305 surrounding the two sides and the bottom of the limit card 304. The setting of the communication groove 305 can increase the elasticity of the limit card 304, so that the guide part 303 of the support member 30 is inserted When the limiting groove 201 is in place, the limiting card 304 can elastically deform inwardly along the radial direction of the cylinder 301 (such as the cylinder 301 ), so that the limiting card 304 can be smoothly snapped into the limiting groove 201 .

In one embodiment of the present utility model, as shown in FIG. 2 , the support member 30 further includes: a boss 306 formed on the upper end surface of the cylinder 301 , and the circuit board 10 is provided with a fixing hole corresponding to the boss 306 101 , the circuit board 10 is supported on the stepped surface formed between the boss 306 and the post 301 .

When installing the circuit board 10, only need to align the fixing hole 101 on the circuit board 10 with the boss 306 on the support 30, and insert the boss 306 into the fixing hole 101, the circuit board 10 can be realized on the support 30 The positioning and support are convenient for further bolting process, the positioning feature is obvious, and the installation efficiency is high.

In a specific embodiment, as shown in FIG. 1 and FIG. 2 , the fastener includes a bolt 40 and a rivet nut 50 , the boss 306 is provided with a through threaded hole 307 , and the mounting plate 20 is provided with a rivet nut hole 202 , The rivet nut 50 is installed in the rivet nut hole 202 , and the bolt 40 is fastened to the rivet nut 50 through the threaded hole 307 .

A rivet nut 50 is riveted on the mounting sheet metal 20, and the bolt 40 passes through the threaded hole 307 on the support member 30, and is tightly connected with the rivet nut 50 on the mounting sheet metal 20, thereby realizing supporting the circuit board 10 on the support member 30 and be fixed on the mounting sheet metal 20, the structure is simple and the assembly is firm; those skilled in the art should understand that in order to realize the fixing of the circuit board 10 on the mounting sheet metal 20, the size of the nut of the bolt 40 should be larger than that of the circuit board 10 The size of the upper fixing hole 101 is to ensure that part of the lower end surface of the nut presses against the upper surface of the circuit board 10 .

In another specific embodiment, the fastener includes a self-tapping screw (not shown in the figure), the boss 306 is provided with a threaded hole 307 through, and the mounting sheet metal 20 is provided with a flanging hole, and the self-tapping screw passes through The threaded hole 307 is tightly connected with the flange hole.

In yet another specific embodiment, the fastener includes a bolt 40 and a butt-welding nut (not shown in the figure), the butt-welding nut is welded on the mounting sheet metal 20, and the boss 306 is provided with a threaded hole 307 through which the bolt 40 Through the threaded hole 307, it is tightly connected with the butt welding nut.

In addition to adopting bolts 40 and riveting nuts 50 to fix the circuit board 10, self-tapping screws can also be used to fix the circuit board 10. In this embodiment, flange holes can be directly processed on the mounting sheet metal 20 without the need Fix the nuts that cooperate with the bolts 40 on the metal 20, further simplify the installation process, make the installation operation of the circuit board 10 easier, and further improve production efficiency; The bolts 40 cooperate with the welding nuts to fix the circuit board 10 .

Further, the height of the boss 306 is less than or equal to the thickness of the circuit board 10 .

Preferably, the height of the boss 306 is designed to be slightly smaller than the thickness of the circuit board 10, so as to provide more effective fixing constraints to the circuit board 10, so as to ensure that the part of the lower end surface of the nut of the bolt 40 (or the nut of the self-tapping screw) is pressed. tight to the upper surface of the circuit board 10.

In some embodiments of the present utility model, the opening shape of the limiting slot 201 is arc-shaped, square or rectangular; the cylinder 301 is cylindrical, quadrangular or polygonal.

In a specific example, as shown in FIG. 8 , the opening shape of the limiting slot 201 is arc-shaped.

The opening shape of the limiting groove 201 is designed to be arc-shaped, the positioning feature is more obvious, and it is convenient for assembly; when the opening shape of the limiting groove 201 is designed to be a square or other regular shape, it is more convenient for CNC machining and saves mold development costs; Of course, the shape of the cylinder 301 of the support member 30 is not limited to the above-mentioned cylindrical, square or polygonal prism, and can be designed according to the actual situation.

In some embodiments of the present invention, there are multiple supports 30 , and the circuit board 10 is supported on the multiple supports 30 .

Preferably, as shown in FIG. 3 , the number of support members 30 is four, and the four support members 30 respectively support four corners of the circuit board 10 .

The circuit board 10 is supported by a plurality of supports 30 to ensure the stability of the fixed support of the circuit board 10 on the mounting sheet metal 20; preferably, four supports 30 are used to support the four corners of the circuit board 10 respectively to realize the Fixed support for the board 10.

In a specific example, as shown in FIGS. 1 to 3 , the specific installation process of the circuit board is as follows: first, the rivet nut 50 is riveted into the rivet nut hole 202 of the installation sheet metal 20; Align and put it into the limit groove 201 on the installation sheet metal 20 until the limit card 304 on the support 30 snaps into the limit groove 201 on the installation sheet 20, at this time the limit on the support 30 The opening 302 is in contact with the upper surface of the installation sheet metal 20 and pressed tightly, and the limit card 304 and the limit opening 302 completely restrict the degree of freedom of the support member 30, thereby realizing the stable installation of the support member 30 on the installation sheet metal 20; in order to increase The elasticity of the limit card 304, on the side wall of the cylinder 301 of the support 30, a communication groove 305 that increases the elasticity is provided; on the platform 306; finally use the bolt 40 to pass through the threaded hole 307 on the boss 306 of the support member 30, and be threaded on the riveting nut 50 on the installation sheet metal 10, so as to realize the stable installation of the circuit board 10 on the installation sheet metal 20 , the operation is simple, the positioning is accurate, and the installation efficiency is high; the circuit board 10 can be removed only by removing a few bolts during maintenance, without removing the support member 30, and the maintenance is convenient.

As shown in FIGS. 4 to 7 , another embodiment of the present invention provides a support 30 for a circuit board 10 , including: a hollow cylinder 301 formed on the side wall of the cylinder 301 and passing through The limit opening 302 on the lower end surface, the guide part 303 formed on both sides of the limit opening 302 , and the limit card 304 formed on the guide part 303 .

In one embodiment of the present utility model, as shown in FIG. 4 , the support member 30 of the circuit board 10 further includes: a communication channel formed on the side wall of the column 301 and surrounding the two sides and the bottom of the limit card 304 The groove 305 is used to enable the limit card 304 to be elastically deformed relative to the cylinder 301 .

In one embodiment of the present utility model, as shown in FIG. 5 , FIG. 6 and FIG. 7 , the support member 30 of the circuit board 10 further includes: a boss 306 formed on the upper end surface of the cylinder 301 , and the boss 306 and A stepped surface for supporting the circuit board 10 is formed between the pillars 301 , and a through screw hole 307 is opened on the boss 306 .

In summary, the fixed support structure of the circuit board provided by the above embodiments of the utility model has obvious positioning features on the support and is easy to operate. The limit card and the limit opening on the support completely restrict the degree of freedom of the support , so that the support can be firmly installed on the installation sheet metal, and finally the circuit board is fixed and supported on the support by bolts. When installing the circuit board, the positioning is accurate and the installation efficiency is improved; when maintaining, only a few bolts need to be removed The circuit board can be removed without removing the support for easy maintenance.

In the description of the utility model, the terms "first" and "second" are only used for the purpose of description, and cannot be understood as indicating or implying relative importance; the terms "installation", "connection" and the like should be understood in a broad sense , For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediary. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model according to specific situations.

In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the utility model and simplifying the description , rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the utility model.

In the description of this specification, descriptions of the terms "one embodiment", "some embodiments", "specific embodiments" and the like mean that specific features, structures, materials or characteristics described in conjunction with the embodiments or examples are included in the present application. Novel at least one embodiment or example. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above descriptions are only preferred embodiments of the utility model, and are not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (11)

1. a kind of fixed support structure of circuit board, it is characterised in that including：

Support member, including hollow cylinder, be formed on the side wall of the cylinder and the limited mouth of its lower surface of insertion, be formed at The guide part of the limited mouth both sides and the limiting card being formed on the guide part；

Metal plate is installed, the stopper slot being adapted with the guide part shape is offered thereon, the guide part insertion is described spacing In groove, the limiting card and the upper surface of the stopper slot snap-fit, the limited mouth and the installation metal plate are compressed； With

Circuit board, is supported on the support member, and is fastenedly connected by fastener with the installation metal plate.

2. the fixed support structure of circuit board according to claim 1, it is characterised in that

The support member also includes：It is formed on the side wall of the cylinder and is looped around the both sides and lower section of the limiting card Connectivity slot, so that the limiting card being capable of relatively described cylinder generation elastic deformation.

3. the fixed support structure of circuit board according to claim 1, it is characterised in that

The support member also includes：Be formed on the boss on the upper surface of the cylinder, the circuit board offer with it is described On the corresponding fixing hole of boss, the step surface that the board support is formed between the boss and the cylinder.

4. the fixed support structure of circuit board according to claim 3, it is characterised in that

The fastener is included on the screwed hole that insertion is offered on bolt and riveting nut, the boss, the installation metal plate Offer riveting nut hole, the riveting nut is arranged in the riveting nut hole, the bolt through the screwed hole with it is described Riveting nut is fastenedly connected；Or,

The fastener includes the screwed hole that insertion is offered on tapping screw, the boss, and the installation metal plate is provided with and turned over Lateral opening, the tapping screw is fastenedly connected through the screwed hole with the flanging bore；Or,

The fastener includes bolt and butt-joint nut, and the butt-joint nut-welding is on the installation metal plate, on the boss The screwed hole of insertion is offered, the bolt is fastenedly connected through the screwed hole with the butt-joint nut.

5. the fixed support structure of circuit board according to claim 4, it is characterised in that

The height of the boss is less than or equal to the thickness of the circuit board.

6. the fixed support structure of circuit board according to claim 1, it is characterised in that

The opening shape of the stopper slot is in circular arc, square or rectangle；Or,

The cylinder is in cylinder, four prism type or multi-edge column-shaped.

7. the fixed support structure of circuit board according to any one of claim 1 to 6, it is characterised in that

The quantity of the support member is multiple, and the board support is on multiple support members.

8. the fixed support structure of circuit board according to claim 7, it is characterised in that

The quantity of the support member is four, and four support members support four corners of the circuit board respectively.

9. a kind of support member of circuit board, it is characterised in that including：

Hollow cylinder, it is formed on the side wall of the cylinder and the limited mouth of its lower surface of insertion, is formed at the limited mouth The guide part of both sides and the limiting card being formed on the guide part.

10. the support member of circuit board according to claim 9, it is characterised in that also include：

It is formed on the side wall of the cylinder and is looped around the both sides of the limiting card and the connectivity slot of lower section, so that the limit Position card being capable of relatively described cylinder generation elastic deformation.

11. the support member of circuit board according to claim 9, it is characterised in that also include：

The boss on the upper surface of the cylinder is formed at, is formed between the boss and the cylinder for supporting the circuit The screwed hole of insertion is offered on the step surface of plate, the boss.